/* gtktreeview.c * Copyright (C) 2000 Red Hat, Inc., Jonathan Blandford * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library. If not, see . */ #include "config.h" #include "gtktreeview.h" #include "gtkadjustmentprivate.h" #include "gtkbox.h" #include "gtkbindings.h" #include "gtkbuildable.h" #include "gtkbutton.h" #include "gtkcelllayout.h" #include "gtkcellrenderer.h" #include "gtkcontainer.h" #include "gtkcssnumbervalueprivate.h" #include "gtkcsscolorvalueprivate.h" #include "gtkcssstylepropertyprivate.h" #include "gtkdragdest.h" #include "gtkdragsource.h" #include "gtkdragicon.h" #include "gtkentryprivate.h" #include "gtksearchentryprivate.h" #include "gtkeventcontrollerkey.h" #include "gtkeventcontrollermotion.h" #include "gtkeventcontrollerscroll.h" #include "gtkframe.h" #include "gtkgesturedrag.h" #include "gtkgestureclick.h" #include "gtkgesturesingle.h" #include "gtkintl.h" #include "gtklabel.h" #include "gtkmain.h" #include "gtkmarshalers.h" #include "gtkprivate.h" #include "gtktext.h" #include "gtktreerbtreeprivate.h" #include "gtkrendericonprivate.h" #include "gtkscrollable.h" #include "gtksettingsprivate.h" #include "gtksnapshot.h" #include "gtkstylecontextprivate.h" #include "gtktooltip.h" #include "gtktreednd.h" #include "gtktreemodelsort.h" #include "gtktreeprivate.h" #include "gtktypebuiltins.h" #include "gtkwidgetprivate.h" #include "gtkwindowgroup.h" #include "gtknative.h" #include "gtkpopover.h" #include "gtkselectionprivate.h" #include "a11y/gtktreeviewaccessibleprivate.h" #include "gdk/gdkeventsprivate.h" #include "gdk/gdktextureprivate.h" #include #include /** * SECTION:gtktreeview * @Short_description: A widget for displaying both trees and lists * @Title: GtkTreeView * @See_also: #GtkTreeViewColumn, #GtkTreeSelection, #GtkTreeModel, * [GtkTreeView drag-and-drop][gtk3-GtkTreeView-drag-and-drop], * #GtkTreeSortable, #GtkTreeModelSort, #GtkListStore, #GtkTreeStore, * #GtkCellRenderer, #GtkCellEditable, #GtkCellRendererPixbuf, * #GtkCellRendererText, #GtkCellRendererToggle * * Widget that displays any object that implements the #GtkTreeModel interface. * * Please refer to the * [tree widget conceptual overview][TreeWidget] * for an overview of all the objects and data types related * to the tree widget and how they work together. * * Several different coordinate systems are exposed in the GtkTreeView API. * These are: * * ![](tree-view-coordinates.png) * * Coordinate systems in GtkTreeView API: * * - Widget coordinates: Coordinates relative to the widget (usually `widget->window`). * * - Bin window coordinates: Coordinates relative to the window that GtkTreeView renders to. * * - Tree coordinates: Coordinates relative to the entire scrollable area of GtkTreeView. These * coordinates start at (0, 0) for row 0 of the tree. * * Several functions are available for converting between the different * coordinate systems. The most common translations are between widget and bin * window coordinates and between bin window and tree coordinates. For the * former you can use gtk_tree_view_convert_widget_to_bin_window_coords() * (and vice versa), for the latter gtk_tree_view_convert_bin_window_to_tree_coords() * (and vice versa). * * # GtkTreeView as GtkBuildable * * The GtkTreeView implementation of the GtkBuildable interface accepts * #GtkTreeViewColumn objects as elements and exposes the internal * #GtkTreeSelection in UI definitions. * * An example of a UI definition fragment with GtkTreeView: * |[ * * liststore1 * * * Test * * * * 1 * * * * * * * * * * * ]| * * # CSS nodes * * |[ * treeview.view * ├── header * │ ├── * ┊ ┊ * │ ╰── * │ * ├── [rubberband] * ╰── [dndtarget] * ]| * * GtkTreeView has a main CSS node with name treeview and style class .view. * It has a subnode with name header, which is the parent for all the column * header widgets' CSS nodes. * * For rubberband selection, a subnode with name rubberband is used. * * For the drop target location during DND, a subnode with name dndtarget is used. */ enum { DRAG_COLUMN_WINDOW_STATE_UNSET = 0, DRAG_COLUMN_WINDOW_STATE_ORIGINAL = 1, DRAG_COLUMN_WINDOW_STATE_ARROW = 2, DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT = 3, DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT = 4 }; enum { RUBBER_BAND_OFF = 0, RUBBER_BAND_MAYBE_START = 1, RUBBER_BAND_ACTIVE = 2 }; typedef enum { CLEAR_AND_SELECT = (1 << 0), CLAMP_NODE = (1 << 1), CURSOR_INVALID = (1 << 2) } SetCursorFlags; /* This lovely little value is used to determine how far away from the title bar * you can move the mouse and still have a column drag work. */ #define TREE_VIEW_COLUMN_DRAG_DEAD_MULTIPLIER(tree_view) (10*gtk_tree_view_get_effective_header_height(tree_view)) #ifdef __GNUC__ #define TREE_VIEW_INTERNAL_ASSERT(expr, ret) G_STMT_START{ \ if (!(expr)) \ { \ g_log (G_LOG_DOMAIN, \ G_LOG_LEVEL_CRITICAL, \ "%s (%s): assertion `%s' failed.\n" \ "There is a disparity between the internal view of the GtkTreeView,\n" \ "and the GtkTreeModel. This generally means that the model has changed\n"\ "without letting the view know. Any display from now on is likely to\n" \ "be incorrect.\n", \ G_STRLOC, \ G_STRFUNC, \ #expr); \ return ret; \ }; }G_STMT_END #define TREE_VIEW_INTERNAL_ASSERT_VOID(expr) G_STMT_START{ \ if (!(expr)) \ { \ g_log (G_LOG_DOMAIN, \ G_LOG_LEVEL_CRITICAL, \ "%s (%s): assertion `%s' failed.\n" \ "There is a disparity between the internal view of the GtkTreeView,\n" \ "and the GtkTreeModel. This generally means that the model has changed\n"\ "without letting the view know. Any display from now on is likely to\n" \ "be incorrect.\n", \ G_STRLOC, \ G_STRFUNC, \ #expr); \ return; \ }; }G_STMT_END #else #define TREE_VIEW_INTERNAL_ASSERT(expr, ret) G_STMT_START{ \ if (!(expr)) \ { \ g_log (G_LOG_DOMAIN, \ G_LOG_LEVEL_CRITICAL, \ "file %s: line %d: assertion `%s' failed.\n" \ "There is a disparity between the internal view of the GtkTreeView,\n" \ "and the GtkTreeModel. This generally means that the model has changed\n"\ "without letting the view know. Any display from now on is likely to\n" \ "be incorrect.\n", \ __FILE__, \ __LINE__, \ #expr); \ return ret; \ }; }G_STMT_END #define TREE_VIEW_INTERNAL_ASSERT_VOID(expr) G_STMT_START{ \ if (!(expr)) \ { \ g_log (G_LOG_DOMAIN, \ G_LOG_LEVEL_CRITICAL, \ "file %s: line %d: assertion '%s' failed.\n" \ "There is a disparity between the internal view of the GtkTreeView,\n" \ "and the GtkTreeModel. This generally means that the model has changed\n"\ "without letting the view know. Any display from now on is likely to\n" \ "be incorrect.\n", \ __FILE__, \ __LINE__, \ #expr); \ return; \ }; }G_STMT_END #endif #define GTK_TREE_VIEW_PRIORITY_VALIDATE (GDK_PRIORITY_REDRAW + 5) #define GTK_TREE_VIEW_PRIORITY_SCROLL_SYNC (GTK_TREE_VIEW_PRIORITY_VALIDATE + 2) /* 3/5 of gdkframeclockidle.c's FRAME_INTERVAL (16667 microsecs) */ #define GTK_TREE_VIEW_TIME_MS_PER_IDLE 10 #define SCROLL_EDGE_SIZE 15 #define GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT 5000 #define AUTO_EXPAND_TIMEOUT 500 /* Translate from bin_window coordinates to rbtree (tree coordinates) and * vice versa. */ #define TREE_WINDOW_Y_TO_RBTREE_Y(tree_view,y) ((y) + tree_view->dy) #define RBTREE_Y_TO_TREE_WINDOW_Y(tree_view,y) ((y) - tree_view->dy) /* Vertical separator width. Must be an even number. */ #define _TREE_VIEW_VERTICAL_SEPARATOR 2 /* Horizontal separator width. Must be an even number. */ #define _TREE_VIEW_HORIZONTAL_SEPARATOR 4 /* Tree view grid line width, in pixels */ #define _TREE_VIEW_GRID_LINE_WIDTH 1 /* Tree view line width, in pixels */ #define _TREE_VIEW_TREE_LINE_WIDTH 1 typedef struct _GtkTreeViewColumnReorder GtkTreeViewColumnReorder; struct _GtkTreeViewColumnReorder { gint left_align; gint right_align; GtkTreeViewColumn *left_column; GtkTreeViewColumn *right_column; }; typedef struct _GtkTreeViewChild GtkTreeViewChild; struct _GtkTreeViewChild { GtkWidget *widget; GtkTreeRBNode *node; GtkTreeRBTree *tree; GtkTreeViewColumn *column; GtkBorder border; }; typedef struct _TreeViewDragInfo TreeViewDragInfo; struct _TreeViewDragInfo { GdkContentFormats *source_formats; GdkDragAction source_actions; GdkDrag *drag; GtkTreeRowReference *source_item; GtkCssNode *cssnode; GtkDropTarget *dest; GdkModifierType start_button_mask; guint source_set : 1; guint dest_set : 1; }; typedef struct _GtkTreeViewClass GtkTreeViewClass; struct _GtkTreeViewClass { GtkContainerClass parent_class; void (* row_activated) (GtkTreeView *tree_view, GtkTreePath *path, GtkTreeViewColumn *column); gboolean (* test_expand_row) (GtkTreeView *tree_view, GtkTreeIter *iter, GtkTreePath *path); gboolean (* test_collapse_row) (GtkTreeView *tree_view, GtkTreeIter *iter, GtkTreePath *path); void (* row_expanded) (GtkTreeView *tree_view, GtkTreeIter *iter, GtkTreePath *path); void (* row_collapsed) (GtkTreeView *tree_view, GtkTreeIter *iter, GtkTreePath *path); void (* columns_changed) (GtkTreeView *tree_view); void (* cursor_changed) (GtkTreeView *tree_view); /* Key Binding signals */ gboolean (* move_cursor) (GtkTreeView *tree_view, GtkMovementStep step, gint count); gboolean (* select_all) (GtkTreeView *tree_view); gboolean (* unselect_all) (GtkTreeView *tree_view); gboolean (* select_cursor_row) (GtkTreeView *tree_view, gboolean start_editing); gboolean (* toggle_cursor_row) (GtkTreeView *tree_view); gboolean (* expand_collapse_cursor_row) (GtkTreeView *tree_view, gboolean logical, gboolean expand, gboolean open_all); gboolean (* select_cursor_parent) (GtkTreeView *tree_view); gboolean (* start_interactive_search) (GtkTreeView *tree_view); }; struct _GtkTreeView { GtkContainer parent; GtkTreeModel *model; /* tree information */ GtkTreeRBTree *tree; /* Container info */ GList *children; gint width; guint presize_handler_tick_cb; /* Adjustments */ GtkAdjustment *hadjustment; GtkAdjustment *vadjustment; gint min_display_width; gint min_display_height; /* CSS nodes */ GtkCssNode *header_node; /* Scroll position state keeping */ GtkTreeRowReference *top_row; gint top_row_dy; /* dy == y pos of top_row + top_row_dy */ /* we cache it for simplicity of the code */ gint dy; guint validate_rows_timer; guint scroll_sync_timer; /* Indentation and expander layout */ GtkTreeViewColumn *expander_column; gint level_indentation; /* Key navigation (focus), selection */ gint cursor_offset; GtkTreeRowReference *anchor; GtkTreeRBNode *cursor_node; GtkTreeRBTree *cursor_tree; GtkTreeViewColumn *focus_column; /* Current pressed node, previously pressed, prelight */ GtkTreeRBNode *button_pressed_node; GtkTreeRBTree *button_pressed_tree; gint press_start_x; gint press_start_y; gint event_last_x; gint event_last_y; GtkTreeRBNode *prelight_node; GtkTreeRBTree *prelight_tree; /* Cell Editing */ GtkTreeViewColumn *edited_column; /* Auto expand/collapse timeout in hover mode */ guint auto_expand_timeout; /* Selection information */ GtkTreeSelection *selection; /* Header information */ gint header_height; gint n_columns; GList *columns; GtkTreeViewColumnDropFunc column_drop_func; gpointer column_drop_func_data; GDestroyNotify column_drop_func_data_destroy; GList *column_drag_info; GtkTreeViewColumnReorder *cur_reorder; gint prev_width_before_expander; /* Scroll timeout (e.g. during dnd, rubber banding) */ guint scroll_timeout; /* Interactive Header reordering */ GtkTreeViewColumn *drag_column; gint drag_column_x; gint drag_column_y; /* Interactive Header Resizing */ gint drag_pos; gint x_drag; /* Row drag-and-drop */ GtkTreeRowReference *drag_dest_row; GtkTreeViewDropPosition drag_dest_pos; guint open_dest_timeout; /* Rubber banding */ gint rubber_band_status; gint rubber_band_x; gint rubber_band_y; gint rubber_band_extend; gint rubber_band_modify; /* fixed height */ gint fixed_height; GtkTreeRBNode *rubber_band_start_node; GtkTreeRBTree *rubber_band_start_tree; GtkTreeRBNode *rubber_band_end_node; GtkTreeRBTree *rubber_band_end_tree; GtkCssNode *rubber_band_cssnode; /* Scroll-to functionality when unrealized */ GtkTreeRowReference *scroll_to_path; GtkTreeViewColumn *scroll_to_column; gfloat scroll_to_row_align; gfloat scroll_to_col_align; /* Interactive search */ gint selected_iter; gint search_column; GtkTreeViewSearchEqualFunc search_equal_func; gpointer search_user_data; GDestroyNotify search_destroy; gpointer search_position_user_data; GDestroyNotify search_position_destroy; GtkWidget *search_popover; GtkWidget *search_entry; gulong search_entry_changed_id; guint typeselect_flush_timeout; /* Grid and tree lines */ GtkTreeViewGridLines grid_lines; gboolean tree_lines_enabled; /* Row separators */ GtkTreeViewRowSeparatorFunc row_separator_func; gpointer row_separator_data; GDestroyNotify row_separator_destroy; /* Gestures */ GtkGesture *click_gesture; GtkGesture *drag_gesture; /* Rubberbanding, row DnD */ GtkGesture *column_drag_gesture; /* Column reordering, resizing */ /* Tooltip support */ gint tooltip_column; int expander_size; GdkRGBA grid_line_color; /* Color used in the textures */ GdkTexture *horizontal_grid_line_texture; GdkTexture *vertical_grid_line_texture; GdkRGBA tree_line_color; /* Color used in the textures */ GdkTexture *horizontal_tree_line_texture; GdkTexture *vertical_tree_line_texture; /* Here comes the bitfield */ guint scroll_to_use_align : 1; guint fixed_height_mode : 1; guint fixed_height_check : 1; guint activate_on_single_click : 1; guint reorderable : 1; guint header_has_focus : 1; guint drag_column_surface_state : 3; guint mark_rows_col_dirty : 1; /* for DnD */ guint empty_view_drop : 1; guint modify_selection_pressed : 1; guint extend_selection_pressed : 1; guint in_top_row_to_dy : 1; /* interactive search */ guint enable_search : 1; guint disable_popdown : 1; guint search_custom_entry_set : 1; guint hover_selection : 1; guint hover_expand : 1; guint imcontext_changed : 1; guint in_scroll : 1; guint rubber_banding_enable : 1; guint in_grab : 1; /* Whether our key press handler is to avoid sending an unhandled binding to the search entry */ guint search_entry_avoid_unhandled_binding : 1; /* GtkScrollablePolicy needs to be checked when * driving the scrollable adjustment values */ guint hscroll_policy : 1; guint vscroll_policy : 1; /* GtkTreeView flags */ guint is_list : 1; guint show_expanders : 1; guint in_column_resize : 1; guint arrow_prelit : 1; guint headers_visible : 1; guint draw_keyfocus : 1; guint model_setup : 1; guint in_column_drag : 1; }; /* Signals */ enum { ROW_ACTIVATED, TEST_EXPAND_ROW, TEST_COLLAPSE_ROW, ROW_EXPANDED, ROW_COLLAPSED, COLUMNS_CHANGED, CURSOR_CHANGED, MOVE_CURSOR, SELECT_ALL, UNSELECT_ALL, SELECT_CURSOR_ROW, TOGGLE_CURSOR_ROW, EXPAND_COLLAPSE_CURSOR_ROW, SELECT_CURSOR_PARENT, START_INTERACTIVE_SEARCH, LAST_SIGNAL }; /* Properties */ enum { PROP_0, PROP_MODEL, PROP_HEADERS_VISIBLE, PROP_HEADERS_CLICKABLE, PROP_EXPANDER_COLUMN, PROP_REORDERABLE, PROP_ENABLE_SEARCH, PROP_SEARCH_COLUMN, PROP_FIXED_HEIGHT_MODE, PROP_HOVER_SELECTION, PROP_HOVER_EXPAND, PROP_SHOW_EXPANDERS, PROP_LEVEL_INDENTATION, PROP_RUBBER_BANDING, PROP_ENABLE_GRID_LINES, PROP_ENABLE_TREE_LINES, PROP_TOOLTIP_COLUMN, PROP_ACTIVATE_ON_SINGLE_CLICK, LAST_PROP, /* overridden */ PROP_HADJUSTMENT = LAST_PROP, PROP_VADJUSTMENT, PROP_HSCROLL_POLICY, PROP_VSCROLL_POLICY, }; /* object signals */ static void gtk_tree_view_finalize (GObject *object); static void gtk_tree_view_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec); static void gtk_tree_view_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec); /* gtkwidget signals */ static void gtk_tree_view_destroy (GtkWidget *widget); static void gtk_tree_view_realize (GtkWidget *widget); static void gtk_tree_view_unrealize (GtkWidget *widget); static void gtk_tree_view_map (GtkWidget *widget); static void gtk_tree_view_measure (GtkWidget *widget, GtkOrientation orientation, int for_size, int *minimum, int *natural, int *minimum_baseline, int *natural_baseline); static void gtk_tree_view_size_allocate (GtkWidget *widget, int width, int height, int baseline); static void gtk_tree_view_snapshot (GtkWidget *widget, GtkSnapshot *snapshot); static gboolean gtk_tree_view_key_controller_key_pressed (GtkEventControllerKey *key, guint keyval, guint keycode, GdkModifierType state, GtkTreeView *tree_view); static void gtk_tree_view_key_controller_key_released (GtkEventControllerKey *key, guint keyval, guint keycode, GdkModifierType state, GtkTreeView *tree_view); static void gtk_tree_view_key_controller_focus_out (GtkEventControllerKey *key, GdkCrossingMode mode, GdkNotifyType detail, GtkTreeView *tree_view); static gint gtk_tree_view_focus (GtkWidget *widget, GtkDirectionType direction); static gboolean gtk_tree_view_grab_focus (GtkWidget *widget); static void gtk_tree_view_css_changed (GtkWidget *widget, GtkCssStyleChange *change); /* container signals */ static void gtk_tree_view_remove (GtkContainer *container, GtkWidget *widget); static void gtk_tree_view_forall (GtkContainer *container, GtkCallback callback, gpointer callback_data); /* Source side drag signals */ static void gtk_tree_view_dnd_finished_cb (GdkDrag *drag, GtkWidget *widget); static GdkContentProvider * gtk_tree_view_drag_data_get (GtkTreeView *tree_view, GtkTreePath *source_row); /* Target side drag signals */ static void gtk_tree_view_drag_leave (GtkDropTarget *dest, GdkDrop *drop, GtkTreeView *tree_view); static void gtk_tree_view_drag_motion (GtkDropTarget *dest, GdkDrop *drop, int x, int y, GtkTreeView *tree_view); static gboolean gtk_tree_view_drag_drop (GtkDropTarget *dest, GdkDrop *drop, int x, int y, GtkTreeView *tree_view); static void gtk_tree_view_drag_data_received (GObject *source, GAsyncResult *result, gpointer data); /* tree_model signals */ static gboolean gtk_tree_view_real_move_cursor (GtkTreeView *tree_view, GtkMovementStep step, gint count); static gboolean gtk_tree_view_real_select_all (GtkTreeView *tree_view); static gboolean gtk_tree_view_real_unselect_all (GtkTreeView *tree_view); static gboolean gtk_tree_view_real_select_cursor_row (GtkTreeView *tree_view, gboolean start_editing); static gboolean gtk_tree_view_real_toggle_cursor_row (GtkTreeView *tree_view); static gboolean gtk_tree_view_real_expand_collapse_cursor_row (GtkTreeView *tree_view, gboolean logical, gboolean expand, gboolean open_all); static gboolean gtk_tree_view_real_select_cursor_parent (GtkTreeView *tree_view); static void gtk_tree_view_row_changed (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data); static void gtk_tree_view_row_inserted (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data); static void gtk_tree_view_row_has_child_toggled (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data); static void gtk_tree_view_row_deleted (GtkTreeModel *model, GtkTreePath *path, gpointer data); static void gtk_tree_view_rows_reordered (GtkTreeModel *model, GtkTreePath *parent, GtkTreeIter *iter, gint *new_order, gpointer data); /* Incremental reflow */ static gboolean validate_row (GtkTreeView *tree_view, GtkTreeRBTree *tree, GtkTreeRBNode *node, GtkTreeIter *iter, GtkTreePath *path); static void validate_visible_area (GtkTreeView *tree_view); static gboolean do_validate_rows (GtkTreeView *tree_view, gboolean queue_resize); static gboolean validate_rows (GtkTreeView *tree_view); static void install_presize_handler (GtkTreeView *tree_view); static void install_scroll_sync_handler (GtkTreeView *tree_view); static void gtk_tree_view_set_top_row (GtkTreeView *tree_view, GtkTreePath *path, gint offset); static void gtk_tree_view_dy_to_top_row (GtkTreeView *tree_view); static void gtk_tree_view_top_row_to_dy (GtkTreeView *tree_view); static void invalidate_empty_focus (GtkTreeView *tree_view); /* Internal functions */ static gboolean gtk_tree_view_is_expander_column (GtkTreeView *tree_view, GtkTreeViewColumn *column); static inline gboolean gtk_tree_view_draw_expanders (GtkTreeView *tree_view); static void gtk_tree_view_add_move_binding (GtkBindingSet *binding_set, guint keyval, guint modmask, gboolean add_shifted_binding, GtkMovementStep step, gint count); static gint gtk_tree_view_unref_and_check_selection_tree (GtkTreeView *tree_view, GtkTreeRBTree *tree); static void gtk_tree_view_snapshot_arrow (GtkTreeView *tree_view, GtkSnapshot *snapshot, GtkTreeRBTree *tree, GtkTreeRBNode *node); static void gtk_tree_view_get_arrow_xrange (GtkTreeView *tree_view, GtkTreeRBTree *tree, gint *x1, gint *x2); static void gtk_tree_view_adjustment_changed (GtkAdjustment *adjustment, GtkTreeView *tree_view); static void gtk_tree_view_build_tree (GtkTreeView *tree_view, GtkTreeRBTree *tree, GtkTreeIter *iter, gint depth, gboolean recurse); static void gtk_tree_view_clamp_node_visible (GtkTreeView *tree_view, GtkTreeRBTree *tree, GtkTreeRBNode *node); static void gtk_tree_view_clamp_column_visible (GtkTreeView *tree_view, GtkTreeViewColumn *column, gboolean focus_to_cell); static gboolean gtk_tree_view_maybe_begin_dragging_row (GtkTreeView *tree_view); static void gtk_tree_view_focus_to_cursor (GtkTreeView *tree_view); static void gtk_tree_view_move_cursor_up_down (GtkTreeView *tree_view, gint count); static void gtk_tree_view_move_cursor_page_up_down (GtkTreeView *tree_view, gint count); static void gtk_tree_view_move_cursor_left_right (GtkTreeView *tree_view, gint count); static void gtk_tree_view_move_cursor_start_end (GtkTreeView *tree_view, gint count); static gboolean gtk_tree_view_real_collapse_row (GtkTreeView *tree_view, GtkTreePath *path, GtkTreeRBTree *tree, GtkTreeRBNode *node, gboolean animate); static gboolean gtk_tree_view_real_expand_row (GtkTreeView *tree_view, GtkTreePath *path, GtkTreeRBTree *tree, GtkTreeRBNode *node, gboolean open_all, gboolean animate); static void gtk_tree_view_real_set_cursor (GtkTreeView *tree_view, GtkTreePath *path, SetCursorFlags flags); static gboolean gtk_tree_view_has_can_focus_cell (GtkTreeView *tree_view); static void column_sizing_notify (GObject *object, GParamSpec *pspec, gpointer data); static void gtk_tree_view_stop_rubber_band (GtkTreeView *tree_view); static void update_prelight (GtkTreeView *tree_view, int x, int y); static inline gint gtk_tree_view_get_effective_header_height (GtkTreeView *tree_view); static inline gint gtk_tree_view_get_cell_area_y_offset (GtkTreeView *tree_view, GtkTreeRBTree *tree, GtkTreeRBNode *node); static inline gint gtk_tree_view_get_cell_area_height (GtkTreeView *tree_view, GtkTreeRBNode *node); static inline gint gtk_tree_view_get_row_y_offset (GtkTreeView *tree_view, GtkTreeRBTree *tree, GtkTreeRBNode *node); static inline gint gtk_tree_view_get_row_height (GtkTreeView *tree_view, GtkTreeRBNode *node); static TreeViewDragInfo* get_info (GtkTreeView *tree_view); /* interactive search */ static void gtk_tree_view_ensure_interactive_directory (GtkTreeView *tree_view); static void gtk_tree_view_search_popover_hide (GtkWidget *search_popover, GtkTreeView *tree_view, GdkDevice *device); static void gtk_tree_view_search_preedit_changed (GtkText *text, const char *preedit, GtkTreeView *tree_view); static void gtk_tree_view_search_changed (GtkEditable *editable, GtkTreeView *tree_view); static void gtk_tree_view_search_activate (GtkEntry *entry, GtkTreeView *tree_view); static void gtk_tree_view_search_pressed_cb (GtkGesture *gesture, int n_press, double x, double y, GtkTreeView *tree_view); static gboolean gtk_tree_view_search_scroll_event (GtkWidget *entry, gdouble dx, gdouble dy, GtkTreeView *tree_view); static gboolean gtk_tree_view_search_key_pressed (GtkEventControllerKey *key, guint keyval, guint keycode, GdkModifierType state, GtkTreeView *tree_view); static gboolean gtk_tree_view_search_move (GtkWidget *window, GtkTreeView *tree_view, gboolean up); static gboolean gtk_tree_view_search_equal_func (GtkTreeModel *model, gint column, const gchar *key, GtkTreeIter *iter, gpointer search_data); static gboolean gtk_tree_view_search_iter (GtkTreeModel *model, GtkTreeSelection *selection, GtkTreeIter *iter, const gchar *text, gint *count, gint n); static void gtk_tree_view_search_init (GtkWidget *entry, GtkTreeView *tree_view); static void gtk_tree_view_put (GtkTreeView *tree_view, GtkWidget *child_widget, GtkTreePath *path, GtkTreeViewColumn*column, const GtkBorder *border); static gboolean gtk_tree_view_start_editing (GtkTreeView *tree_view, GtkTreePath *cursor_path, gboolean edit_only); static void gtk_tree_view_stop_editing (GtkTreeView *tree_view, gboolean cancel_editing); static gboolean gtk_tree_view_real_start_interactive_search (GtkTreeView *tree_view, GdkDevice *device, gboolean keybinding); static gboolean gtk_tree_view_start_interactive_search (GtkTreeView *tree_view); static GtkTreeViewColumn *gtk_tree_view_get_drop_column (GtkTreeView *tree_view, GtkTreeViewColumn *column, gint drop_position); /* GtkBuildable */ static void gtk_tree_view_buildable_add_child (GtkBuildable *tree_view, GtkBuilder *builder, GObject *child, const gchar *type); static GObject *gtk_tree_view_buildable_get_internal_child (GtkBuildable *buildable, GtkBuilder *builder, const gchar *childname); static void gtk_tree_view_buildable_init (GtkBuildableIface *iface); /* GtkScrollable */ static void gtk_tree_view_scrollable_init (GtkScrollableInterface *iface); static void gtk_tree_view_do_set_hadjustment (GtkTreeView *tree_view, GtkAdjustment *adjustment); static void gtk_tree_view_do_set_vadjustment (GtkTreeView *tree_view, GtkAdjustment *adjustment); static gboolean scroll_row_timeout (gpointer data); static void add_scroll_timeout (GtkTreeView *tree_view); static void remove_scroll_timeout (GtkTreeView *tree_view); static void grab_focus_and_unset_draw_keyfocus (GtkTreeView *tree_view); /* Gestures */ static void gtk_tree_view_column_click_gesture_pressed (GtkGestureClick *gesture, gint n_press, gdouble x, gdouble y, GtkTreeView *tree_view); static void gtk_tree_view_click_gesture_pressed (GtkGestureClick *gesture, gint n_press, gdouble x, gdouble y, GtkTreeView *tree_view); static void gtk_tree_view_click_gesture_released (GtkGestureClick *gesture, gint n_press, gdouble x, gdouble y, GtkTreeView *tree_view); static void gtk_tree_view_column_drag_gesture_begin (GtkGestureDrag *gesture, gdouble start_x, gdouble start_y, GtkTreeView *tree_view); static void gtk_tree_view_column_drag_gesture_update (GtkGestureDrag *gesture, gdouble offset_x, gdouble offset_y, GtkTreeView *tree_view); static void gtk_tree_view_column_drag_gesture_end (GtkGestureDrag *gesture, gdouble offset_x, gdouble offset_y, GtkTreeView *tree_view); static void gtk_tree_view_drag_gesture_begin (GtkGestureDrag *gesture, gdouble start_x, gdouble start_y, GtkTreeView *tree_view); static void gtk_tree_view_drag_gesture_update (GtkGestureDrag *gesture, gdouble offset_x, gdouble offset_y, GtkTreeView *tree_view); static void gtk_tree_view_drag_gesture_end (GtkGestureDrag *gesture, gdouble offset_x, gdouble offset_y, GtkTreeView *tree_view); static void gtk_tree_view_motion_controller_enter (GtkEventControllerMotion *controller, double x, double y, GdkCrossingMode mode, GdkNotifyType detail, GtkTreeView *tree_view); static void gtk_tree_view_motion_controller_leave (GtkEventControllerMotion *controller, GdkCrossingMode mode, GdkNotifyType detail, GtkTreeView *tree_view); static void gtk_tree_view_motion_controller_motion (GtkEventControllerMotion *controller, double x, double y, GtkTreeView *tree_view); static guint tree_view_signals [LAST_SIGNAL] = { 0 }; static GParamSpec *tree_view_props [LAST_PROP] = { NULL }; /* GType Methods */ G_DEFINE_TYPE_WITH_CODE (GtkTreeView, gtk_tree_view, GTK_TYPE_CONTAINER, G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE, gtk_tree_view_buildable_init) G_IMPLEMENT_INTERFACE (GTK_TYPE_SCROLLABLE, gtk_tree_view_scrollable_init)) static void gtk_tree_view_class_init (GtkTreeViewClass *class) { GObjectClass *o_class; GtkWidgetClass *widget_class; GtkContainerClass *container_class; GtkBindingSet *binding_set; binding_set = gtk_binding_set_by_class (class); o_class = (GObjectClass *) class; widget_class = (GtkWidgetClass *) class; container_class = (GtkContainerClass *) class; /* GObject signals */ o_class->set_property = gtk_tree_view_set_property; o_class->get_property = gtk_tree_view_get_property; o_class->finalize = gtk_tree_view_finalize; /* GtkWidget signals */ widget_class->destroy = gtk_tree_view_destroy; widget_class->map = gtk_tree_view_map; widget_class->realize = gtk_tree_view_realize; widget_class->unrealize = gtk_tree_view_unrealize; widget_class->measure = gtk_tree_view_measure; widget_class->size_allocate = gtk_tree_view_size_allocate; widget_class->snapshot = gtk_tree_view_snapshot; widget_class->focus = gtk_tree_view_focus; widget_class->grab_focus = gtk_tree_view_grab_focus; widget_class->css_changed = gtk_tree_view_css_changed; /* GtkContainer signals */ container_class->remove = gtk_tree_view_remove; container_class->forall = gtk_tree_view_forall; class->move_cursor = gtk_tree_view_real_move_cursor; class->select_all = gtk_tree_view_real_select_all; class->unselect_all = gtk_tree_view_real_unselect_all; class->select_cursor_row = gtk_tree_view_real_select_cursor_row; class->toggle_cursor_row = gtk_tree_view_real_toggle_cursor_row; class->expand_collapse_cursor_row = gtk_tree_view_real_expand_collapse_cursor_row; class->select_cursor_parent = gtk_tree_view_real_select_cursor_parent; class->start_interactive_search = gtk_tree_view_start_interactive_search; /* Properties */ g_object_class_override_property (o_class, PROP_HADJUSTMENT, "hadjustment"); g_object_class_override_property (o_class, PROP_VADJUSTMENT, "vadjustment"); g_object_class_override_property (o_class, PROP_HSCROLL_POLICY, "hscroll-policy"); g_object_class_override_property (o_class, PROP_VSCROLL_POLICY, "vscroll-policy"); tree_view_props[PROP_MODEL] = g_param_spec_object ("model", P_("TreeView Model"), P_("The model for the tree view"), GTK_TYPE_TREE_MODEL, GTK_PARAM_READWRITE); tree_view_props[PROP_HEADERS_VISIBLE] = g_param_spec_boolean ("headers-visible", P_("Headers Visible"), P_("Show the column header buttons"), TRUE, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY); tree_view_props[PROP_HEADERS_CLICKABLE] = g_param_spec_boolean ("headers-clickable", P_("Headers Clickable"), P_("Column headers respond to click events"), TRUE, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY); tree_view_props[PROP_EXPANDER_COLUMN] = g_param_spec_object ("expander-column", P_("Expander Column"), P_("Set the column for the expander column"), GTK_TYPE_TREE_VIEW_COLUMN, GTK_PARAM_READWRITE); tree_view_props[PROP_REORDERABLE] = g_param_spec_boolean ("reorderable", P_("Reorderable"), P_("View is reorderable"), FALSE, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY); tree_view_props[PROP_ENABLE_SEARCH] = g_param_spec_boolean ("enable-search", P_("Enable Search"), P_("View allows user to search through columns interactively"), TRUE, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY); tree_view_props[PROP_SEARCH_COLUMN] = g_param_spec_int ("search-column", P_("Search Column"), P_("Model column to search through during interactive search"), -1, G_MAXINT, -1, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY); /** * GtkTreeView:fixed-height-mode: * * Setting the ::fixed-height-mode property to %TRUE speeds up * #GtkTreeView by assuming that all rows have the same height. * Only enable this option if all rows are the same height. * Please see gtk_tree_view_set_fixed_height_mode() for more * information on this option. */ tree_view_props[PROP_FIXED_HEIGHT_MODE] = g_param_spec_boolean ("fixed-height-mode", P_("Fixed Height Mode"), P_("Speeds up GtkTreeView by assuming that all rows have the same height"), FALSE, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY); /** * GtkTreeView:hover-selection: * * Enables or disables the hover selection mode of @tree_view. * Hover selection makes the selected row follow the pointer. * Currently, this works only for the selection modes * %GTK_SELECTION_SINGLE and %GTK_SELECTION_BROWSE. * * This mode is primarily intended for treeviews in popups, e.g. * in #GtkComboBox or #GtkEntryCompletion. */ tree_view_props[PROP_HOVER_SELECTION] = g_param_spec_boolean ("hover-selection", P_("Hover Selection"), P_("Whether the selection should follow the pointer"), FALSE, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY); /** * GtkTreeView:hover-expand: * * Enables or disables the hover expansion mode of @tree_view. * Hover expansion makes rows expand or collapse if the pointer moves * over them. * * This mode is primarily intended for treeviews in popups, e.g. * in #GtkComboBox or #GtkEntryCompletion. */ tree_view_props[PROP_HOVER_EXPAND] = g_param_spec_boolean ("hover-expand", P_("Hover Expand"), P_("Whether rows should be expanded/collapsed when the pointer moves over them"), FALSE, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY); /** * GtkTreeView:show-expanders: * * %TRUE if the view has expanders. */ tree_view_props[PROP_SHOW_EXPANDERS] = g_param_spec_boolean ("show-expanders", P_("Show Expanders"), P_("View has expanders"), TRUE, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY); /** * GtkTreeView:level-indentation: * * Extra indentation for each level. */ tree_view_props[PROP_LEVEL_INDENTATION] = g_param_spec_int ("level-indentation", P_("Level Indentation"), P_("Extra indentation for each level"), 0, G_MAXINT, 0, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY); tree_view_props[PROP_RUBBER_BANDING] = g_param_spec_boolean ("rubber-banding", P_("Rubber Banding"), P_("Whether to enable selection of multiple items by dragging the mouse pointer"), FALSE, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY); tree_view_props[PROP_ENABLE_GRID_LINES] = g_param_spec_enum ("enable-grid-lines", P_("Enable Grid Lines"), P_("Whether grid lines should be drawn in the tree view"), GTK_TYPE_TREE_VIEW_GRID_LINES, GTK_TREE_VIEW_GRID_LINES_NONE, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY); tree_view_props[PROP_ENABLE_TREE_LINES] = g_param_spec_boolean ("enable-tree-lines", P_("Enable Tree Lines"), P_("Whether tree lines should be drawn in the tree view"), FALSE, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY); tree_view_props[PROP_TOOLTIP_COLUMN] = g_param_spec_int ("tooltip-column", P_("Tooltip Column"), P_("The column in the model containing the tooltip texts for the rows"), -1, G_MAXINT, -1, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY); /** * GtkTreeView:activate-on-single-click: * * The activate-on-single-click property specifies whether the "row-activated" signal * will be emitted after a single click. */ tree_view_props[PROP_ACTIVATE_ON_SINGLE_CLICK] = g_param_spec_boolean ("activate-on-single-click", P_("Activate on Single Click"), P_("Activate row on a single click"), FALSE, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY); g_object_class_install_properties (o_class, LAST_PROP, tree_view_props); /* Signals */ /** * GtkTreeView::row-activated: * @tree_view: the object on which the signal is emitted * @path: the #GtkTreePath for the activated row * @column: the #GtkTreeViewColumn in which the activation occurred * * The "row-activated" signal is emitted when the method * gtk_tree_view_row_activated() is called, when the user double * clicks a treeview row with the "activate-on-single-click" * property set to %FALSE, or when the user single clicks a row when * the "activate-on-single-click" property set to %TRUE. It is also * emitted when a non-editable row is selected and one of the keys: * Space, Shift+Space, Return or Enter is pressed. * * For selection handling refer to the * [tree widget conceptual overview][TreeWidget] * as well as #GtkTreeSelection. */ tree_view_signals[ROW_ACTIVATED] = g_signal_new (I_("row-activated"), G_TYPE_FROM_CLASS (o_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GtkTreeViewClass, row_activated), NULL, NULL, _gtk_marshal_VOID__BOXED_OBJECT, G_TYPE_NONE, 2, GTK_TYPE_TREE_PATH, GTK_TYPE_TREE_VIEW_COLUMN); g_signal_set_va_marshaller (tree_view_signals[ROW_ACTIVATED], G_TYPE_FROM_CLASS (o_class), _gtk_marshal_VOID__BOXED_OBJECTv); /** * GtkTreeView::test-expand-row: * @tree_view: the object on which the signal is emitted * @iter: the tree iter of the row to expand * @path: a tree path that points to the row * * The given row is about to be expanded (show its children nodes). Use this * signal if you need to control the expandability of individual rows. * * Returns: %FALSE to allow expansion, %TRUE to reject */ tree_view_signals[TEST_EXPAND_ROW] = g_signal_new (I_("test-expand-row"), G_TYPE_FROM_CLASS (o_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GtkTreeViewClass, test_expand_row), _gtk_boolean_handled_accumulator, NULL, _gtk_marshal_BOOLEAN__BOXED_BOXED, G_TYPE_BOOLEAN, 2, GTK_TYPE_TREE_ITER, GTK_TYPE_TREE_PATH); g_signal_set_va_marshaller (tree_view_signals[TEST_EXPAND_ROW], G_TYPE_FROM_CLASS (o_class), _gtk_marshal_BOOLEAN__BOXED_BOXEDv); /** * GtkTreeView::test-collapse-row: * @tree_view: the object on which the signal is emitted * @iter: the tree iter of the row to collapse * @path: a tree path that points to the row * * The given row is about to be collapsed (hide its children nodes). Use this * signal if you need to control the collapsibility of individual rows. * * Returns: %FALSE to allow collapsing, %TRUE to reject */ tree_view_signals[TEST_COLLAPSE_ROW] = g_signal_new (I_("test-collapse-row"), G_TYPE_FROM_CLASS (o_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GtkTreeViewClass, test_collapse_row), _gtk_boolean_handled_accumulator, NULL, _gtk_marshal_BOOLEAN__BOXED_BOXED, G_TYPE_BOOLEAN, 2, GTK_TYPE_TREE_ITER, GTK_TYPE_TREE_PATH); g_signal_set_va_marshaller (tree_view_signals[TEST_COLLAPSE_ROW], G_TYPE_FROM_CLASS (o_class), _gtk_marshal_BOOLEAN__BOXED_BOXEDv); /** * GtkTreeView::row-expanded: * @tree_view: the object on which the signal is emitted * @iter: the tree iter of the expanded row * @path: a tree path that points to the row * * The given row has been expanded (child nodes are shown). */ tree_view_signals[ROW_EXPANDED] = g_signal_new (I_("row-expanded"), G_TYPE_FROM_CLASS (o_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GtkTreeViewClass, row_expanded), NULL, NULL, _gtk_marshal_VOID__BOXED_BOXED, G_TYPE_NONE, 2, GTK_TYPE_TREE_ITER, GTK_TYPE_TREE_PATH); g_signal_set_va_marshaller (tree_view_signals[ROW_EXPANDED], G_TYPE_FROM_CLASS (o_class), _gtk_marshal_VOID__BOXED_BOXEDv); /** * GtkTreeView::row-collapsed: * @tree_view: the object on which the signal is emitted * @iter: the tree iter of the collapsed row * @path: a tree path that points to the row * * The given row has been collapsed (child nodes are hidden). */ tree_view_signals[ROW_COLLAPSED] = g_signal_new (I_("row-collapsed"), G_TYPE_FROM_CLASS (o_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GtkTreeViewClass, row_collapsed), NULL, NULL, _gtk_marshal_VOID__BOXED_BOXED, G_TYPE_NONE, 2, GTK_TYPE_TREE_ITER, GTK_TYPE_TREE_PATH); g_signal_set_va_marshaller (tree_view_signals[ROW_COLLAPSED], G_TYPE_FROM_CLASS (o_class), _gtk_marshal_VOID__BOXED_BOXEDv); /** * GtkTreeView::columns-changed: * @tree_view: the object on which the signal is emitted * * The number of columns of the treeview has changed. */ tree_view_signals[COLUMNS_CHANGED] = g_signal_new (I_("columns-changed"), G_TYPE_FROM_CLASS (o_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GtkTreeViewClass, columns_changed), NULL, NULL, NULL, G_TYPE_NONE, 0); /** * GtkTreeView::cursor-changed: * @tree_view: the object on which the signal is emitted * * The position of the cursor (focused cell) has changed. */ tree_view_signals[CURSOR_CHANGED] = g_signal_new (I_("cursor-changed"), G_TYPE_FROM_CLASS (o_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GtkTreeViewClass, cursor_changed), NULL, NULL, NULL, G_TYPE_NONE, 0); /** * GtkTreeView::move-cursor: * @tree_view: the object on which the signal is emitted. * @step: the granularity of the move, as a * #GtkMovementStep. %GTK_MOVEMENT_LOGICAL_POSITIONS, * %GTK_MOVEMENT_VISUAL_POSITIONS, %GTK_MOVEMENT_DISPLAY_LINES, * %GTK_MOVEMENT_PAGES and %GTK_MOVEMENT_BUFFER_ENDS are * supported. %GTK_MOVEMENT_LOGICAL_POSITIONS and * %GTK_MOVEMENT_VISUAL_POSITIONS are treated identically. * @direction: the direction to move: +1 to move forwards; * -1 to move backwards. The resulting movement is * undefined for all other values. * * The #GtkTreeView::move-cursor signal is a [keybinding * signal][GtkBindingSignal] which gets emitted when the user * presses one of the cursor keys. * * Applications should not connect to it, but may emit it with * g_signal_emit_by_name() if they need to control the cursor * programmatically. In contrast to gtk_tree_view_set_cursor() and * gtk_tree_view_set_cursor_on_cell() when moving horizontally * #GtkTreeView::move-cursor does not reset the current selection. * * Returns: %TRUE if @step is supported, %FALSE otherwise. */ tree_view_signals[MOVE_CURSOR] = g_signal_new (I_("move-cursor"), G_TYPE_FROM_CLASS (o_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GtkTreeViewClass, move_cursor), NULL, NULL, _gtk_marshal_BOOLEAN__ENUM_INT, G_TYPE_BOOLEAN, 2, GTK_TYPE_MOVEMENT_STEP, G_TYPE_INT); g_signal_set_va_marshaller (tree_view_signals[MOVE_CURSOR], G_TYPE_FROM_CLASS (o_class), _gtk_marshal_BOOLEAN__ENUM_INTv); tree_view_signals[SELECT_ALL] = g_signal_new (I_("select-all"), G_TYPE_FROM_CLASS (o_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GtkTreeViewClass, select_all), NULL, NULL, _gtk_marshal_BOOLEAN__VOID, G_TYPE_BOOLEAN, 0); g_signal_set_va_marshaller (tree_view_signals[SELECT_ALL], G_TYPE_FROM_CLASS (o_class), _gtk_marshal_BOOLEAN__VOIDv); tree_view_signals[UNSELECT_ALL] = g_signal_new (I_("unselect-all"), G_TYPE_FROM_CLASS (o_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GtkTreeViewClass, unselect_all), NULL, NULL, _gtk_marshal_BOOLEAN__VOID, G_TYPE_BOOLEAN, 0); g_signal_set_va_marshaller (tree_view_signals[UNSELECT_ALL], G_TYPE_FROM_CLASS (o_class), _gtk_marshal_BOOLEAN__VOIDv); tree_view_signals[SELECT_CURSOR_ROW] = g_signal_new (I_("select-cursor-row"), G_TYPE_FROM_CLASS (o_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GtkTreeViewClass, select_cursor_row), NULL, NULL, _gtk_marshal_BOOLEAN__BOOLEAN, G_TYPE_BOOLEAN, 1, G_TYPE_BOOLEAN); g_signal_set_va_marshaller (tree_view_signals[SELECT_CURSOR_ROW], G_TYPE_FROM_CLASS (o_class), _gtk_marshal_BOOLEAN__BOOLEANv); tree_view_signals[TOGGLE_CURSOR_ROW] = g_signal_new (I_("toggle-cursor-row"), G_TYPE_FROM_CLASS (o_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GtkTreeViewClass, toggle_cursor_row), NULL, NULL, _gtk_marshal_BOOLEAN__VOID, G_TYPE_BOOLEAN, 0); g_signal_set_va_marshaller (tree_view_signals[TOGGLE_CURSOR_ROW], G_TYPE_FROM_CLASS (o_class), _gtk_marshal_BOOLEAN__VOIDv); tree_view_signals[EXPAND_COLLAPSE_CURSOR_ROW] = g_signal_new (I_("expand-collapse-cursor-row"), G_TYPE_FROM_CLASS (o_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GtkTreeViewClass, expand_collapse_cursor_row), NULL, NULL, _gtk_marshal_BOOLEAN__BOOLEAN_BOOLEAN_BOOLEAN, G_TYPE_BOOLEAN, 3, G_TYPE_BOOLEAN, G_TYPE_BOOLEAN, G_TYPE_BOOLEAN); g_signal_set_va_marshaller (tree_view_signals[EXPAND_COLLAPSE_CURSOR_ROW], G_TYPE_FROM_CLASS (o_class), _gtk_marshal_BOOLEAN__BOOLEAN_BOOLEAN_BOOLEANv); tree_view_signals[SELECT_CURSOR_PARENT] = g_signal_new (I_("select-cursor-parent"), G_TYPE_FROM_CLASS (o_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GtkTreeViewClass, select_cursor_parent), NULL, NULL, _gtk_marshal_BOOLEAN__VOID, G_TYPE_BOOLEAN, 0); g_signal_set_va_marshaller (tree_view_signals[SELECT_CURSOR_PARENT], G_TYPE_FROM_CLASS (o_class), _gtk_marshal_BOOLEAN__VOIDv); tree_view_signals[START_INTERACTIVE_SEARCH] = g_signal_new (I_("start-interactive-search"), G_TYPE_FROM_CLASS (o_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GtkTreeViewClass, start_interactive_search), NULL, NULL, _gtk_marshal_BOOLEAN__VOID, G_TYPE_BOOLEAN, 0); g_signal_set_va_marshaller (tree_view_signals[START_INTERACTIVE_SEARCH], G_TYPE_FROM_CLASS (o_class), _gtk_marshal_BOOLEAN__VOIDv); /* Key bindings */ gtk_tree_view_add_move_binding (binding_set, GDK_KEY_Up, 0, TRUE, GTK_MOVEMENT_DISPLAY_LINES, -1); gtk_tree_view_add_move_binding (binding_set, GDK_KEY_KP_Up, 0, TRUE, GTK_MOVEMENT_DISPLAY_LINES, -1); gtk_tree_view_add_move_binding (binding_set, GDK_KEY_Down, 0, TRUE, GTK_MOVEMENT_DISPLAY_LINES, 1); gtk_tree_view_add_move_binding (binding_set, GDK_KEY_KP_Down, 0, TRUE, GTK_MOVEMENT_DISPLAY_LINES, 1); gtk_tree_view_add_move_binding (binding_set, GDK_KEY_p, GDK_CONTROL_MASK, FALSE, GTK_MOVEMENT_DISPLAY_LINES, -1); gtk_tree_view_add_move_binding (binding_set, GDK_KEY_n, GDK_CONTROL_MASK, FALSE, GTK_MOVEMENT_DISPLAY_LINES, 1); gtk_tree_view_add_move_binding (binding_set, GDK_KEY_Home, 0, TRUE, GTK_MOVEMENT_BUFFER_ENDS, -1); gtk_tree_view_add_move_binding (binding_set, GDK_KEY_KP_Home, 0, TRUE, GTK_MOVEMENT_BUFFER_ENDS, -1); gtk_tree_view_add_move_binding (binding_set, GDK_KEY_End, 0, TRUE, GTK_MOVEMENT_BUFFER_ENDS, 1); gtk_tree_view_add_move_binding (binding_set, GDK_KEY_KP_End, 0, TRUE, GTK_MOVEMENT_BUFFER_ENDS, 1); gtk_tree_view_add_move_binding (binding_set, GDK_KEY_Page_Up, 0, TRUE, GTK_MOVEMENT_PAGES, -1); gtk_tree_view_add_move_binding (binding_set, GDK_KEY_KP_Page_Up, 0, TRUE, GTK_MOVEMENT_PAGES, -1); gtk_tree_view_add_move_binding (binding_set, GDK_KEY_Page_Down, 0, TRUE, GTK_MOVEMENT_PAGES, 1); gtk_tree_view_add_move_binding (binding_set, GDK_KEY_KP_Page_Down, 0, TRUE, GTK_MOVEMENT_PAGES, 1); gtk_binding_entry_add_signal (binding_set, GDK_KEY_Right, 0, "move-cursor", 2, G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS, G_TYPE_INT, 1); gtk_binding_entry_add_signal (binding_set, GDK_KEY_Left, 0, "move-cursor", 2, G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS, G_TYPE_INT, -1); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Right, 0, "move-cursor", 2, G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS, G_TYPE_INT, 1); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Left, 0, "move-cursor", 2, G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS, G_TYPE_INT, -1); gtk_binding_entry_add_signal (binding_set, GDK_KEY_Right, GDK_CONTROL_MASK, "move-cursor", 2, G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS, G_TYPE_INT, 1); gtk_binding_entry_add_signal (binding_set, GDK_KEY_Left, GDK_CONTROL_MASK, "move-cursor", 2, G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS, G_TYPE_INT, -1); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Right, GDK_CONTROL_MASK, "move-cursor", 2, G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS, G_TYPE_INT, 1); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Left, GDK_CONTROL_MASK, "move-cursor", 2, G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS, G_TYPE_INT, -1); gtk_binding_entry_add_signal (binding_set, GDK_KEY_space, GDK_CONTROL_MASK, "toggle-cursor-row", 0); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Space, GDK_CONTROL_MASK, "toggle-cursor-row", 0); gtk_binding_entry_add_signal (binding_set, GDK_KEY_a, GDK_CONTROL_MASK, "select-all", 0); gtk_binding_entry_add_signal (binding_set, GDK_KEY_slash, GDK_CONTROL_MASK, "select-all", 0); gtk_binding_entry_add_signal (binding_set, GDK_KEY_A, GDK_CONTROL_MASK | GDK_SHIFT_MASK, "unselect-all", 0); gtk_binding_entry_add_signal (binding_set, GDK_KEY_backslash, GDK_CONTROL_MASK, "unselect-all", 0); gtk_binding_entry_add_signal (binding_set, GDK_KEY_space, GDK_SHIFT_MASK, "select-cursor-row", 1, G_TYPE_BOOLEAN, TRUE); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Space, GDK_SHIFT_MASK, "select-cursor-row", 1, G_TYPE_BOOLEAN, TRUE); gtk_binding_entry_add_signal (binding_set, GDK_KEY_space, 0, "select-cursor-row", 1, G_TYPE_BOOLEAN, TRUE); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Space, 0, "select-cursor-row", 1, G_TYPE_BOOLEAN, TRUE); gtk_binding_entry_add_signal (binding_set, GDK_KEY_Return, 0, "select-cursor-row", 1, G_TYPE_BOOLEAN, TRUE); gtk_binding_entry_add_signal (binding_set, GDK_KEY_ISO_Enter, 0, "select-cursor-row", 1, G_TYPE_BOOLEAN, TRUE); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Enter, 0, "select-cursor-row", 1, G_TYPE_BOOLEAN, TRUE); /* expand and collapse rows */ gtk_binding_entry_add_signal (binding_set, GDK_KEY_plus, 0, "expand-collapse-cursor-row", 3, G_TYPE_BOOLEAN, TRUE, G_TYPE_BOOLEAN, TRUE, G_TYPE_BOOLEAN, FALSE); gtk_binding_entry_add_signal (binding_set, GDK_KEY_asterisk, 0, "expand-collapse-cursor-row", 3, G_TYPE_BOOLEAN, TRUE, G_TYPE_BOOLEAN, TRUE, G_TYPE_BOOLEAN, TRUE); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Multiply, 0, "expand-collapse-cursor-row", 3, G_TYPE_BOOLEAN, TRUE, G_TYPE_BOOLEAN, TRUE, G_TYPE_BOOLEAN, TRUE); gtk_binding_entry_add_signal (binding_set, GDK_KEY_slash, 0, "expand-collapse-cursor-row", 3, G_TYPE_BOOLEAN, TRUE, G_TYPE_BOOLEAN, FALSE, G_TYPE_BOOLEAN, FALSE); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Divide, 0, "expand-collapse-cursor-row", 3, G_TYPE_BOOLEAN, TRUE, G_TYPE_BOOLEAN, FALSE, G_TYPE_BOOLEAN, FALSE); /* Not doable on US keyboards */ gtk_binding_entry_add_signal (binding_set, GDK_KEY_plus, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3, G_TYPE_BOOLEAN, TRUE, G_TYPE_BOOLEAN, TRUE, G_TYPE_BOOLEAN, TRUE); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Add, 0, "expand-collapse-cursor-row", 3, G_TYPE_BOOLEAN, TRUE, G_TYPE_BOOLEAN, TRUE, G_TYPE_BOOLEAN, FALSE); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Add, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3, G_TYPE_BOOLEAN, TRUE, G_TYPE_BOOLEAN, TRUE, G_TYPE_BOOLEAN, TRUE); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Add, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3, G_TYPE_BOOLEAN, TRUE, G_TYPE_BOOLEAN, TRUE, G_TYPE_BOOLEAN, TRUE); gtk_binding_entry_add_signal (binding_set, GDK_KEY_Right, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3, G_TYPE_BOOLEAN, FALSE, G_TYPE_BOOLEAN, TRUE, G_TYPE_BOOLEAN, TRUE); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Right, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3, G_TYPE_BOOLEAN, FALSE, G_TYPE_BOOLEAN, TRUE, G_TYPE_BOOLEAN, TRUE); gtk_binding_entry_add_signal (binding_set, GDK_KEY_Right, GDK_CONTROL_MASK | GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3, G_TYPE_BOOLEAN, FALSE, G_TYPE_BOOLEAN, TRUE, G_TYPE_BOOLEAN, TRUE); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Right, GDK_CONTROL_MASK | GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3, G_TYPE_BOOLEAN, FALSE, G_TYPE_BOOLEAN, TRUE, G_TYPE_BOOLEAN, TRUE); gtk_binding_entry_add_signal (binding_set, GDK_KEY_minus, 0, "expand-collapse-cursor-row", 3, G_TYPE_BOOLEAN, TRUE, G_TYPE_BOOLEAN, FALSE, G_TYPE_BOOLEAN, FALSE); gtk_binding_entry_add_signal (binding_set, GDK_KEY_minus, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3, G_TYPE_BOOLEAN, TRUE, G_TYPE_BOOLEAN, FALSE, G_TYPE_BOOLEAN, TRUE); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Subtract, 0, "expand-collapse-cursor-row", 3, G_TYPE_BOOLEAN, TRUE, G_TYPE_BOOLEAN, FALSE, G_TYPE_BOOLEAN, FALSE); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Subtract, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3, G_TYPE_BOOLEAN, TRUE, G_TYPE_BOOLEAN, FALSE, G_TYPE_BOOLEAN, TRUE); gtk_binding_entry_add_signal (binding_set, GDK_KEY_Left, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3, G_TYPE_BOOLEAN, FALSE, G_TYPE_BOOLEAN, FALSE, G_TYPE_BOOLEAN, TRUE); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Left, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3, G_TYPE_BOOLEAN, FALSE, G_TYPE_BOOLEAN, FALSE, G_TYPE_BOOLEAN, TRUE); gtk_binding_entry_add_signal (binding_set, GDK_KEY_Left, GDK_CONTROL_MASK | GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3, G_TYPE_BOOLEAN, FALSE, G_TYPE_BOOLEAN, FALSE, G_TYPE_BOOLEAN, TRUE); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Left, GDK_CONTROL_MASK | GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3, G_TYPE_BOOLEAN, FALSE, G_TYPE_BOOLEAN, FALSE, G_TYPE_BOOLEAN, TRUE); gtk_binding_entry_add_signal (binding_set, GDK_KEY_BackSpace, 0, "select-cursor-parent", 0); gtk_binding_entry_add_signal (binding_set, GDK_KEY_BackSpace, GDK_CONTROL_MASK, "select-cursor-parent", 0); gtk_binding_entry_add_signal (binding_set, GDK_KEY_f, GDK_CONTROL_MASK, "start-interactive-search", 0); gtk_binding_entry_add_signal (binding_set, GDK_KEY_F, GDK_CONTROL_MASK, "start-interactive-search", 0); gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_TREE_VIEW_ACCESSIBLE); gtk_widget_class_set_css_name (widget_class, I_("treeview")); } static void gtk_tree_view_init (GtkTreeView *tree_view) { GtkCssNode *widget_node; GtkGesture *gesture; GtkEventController *controller; gtk_widget_set_can_focus (GTK_WIDGET (tree_view), TRUE); gtk_widget_set_overflow (GTK_WIDGET (tree_view), GTK_OVERFLOW_HIDDEN); tree_view->show_expanders = TRUE; tree_view->draw_keyfocus = TRUE; tree_view->headers_visible = TRUE; tree_view->activate_on_single_click = FALSE; /* We need some padding */ tree_view->dy = 0; tree_view->cursor_offset = 0; tree_view->n_columns = 0; tree_view->header_height = 1; tree_view->x_drag = 0; tree_view->drag_pos = -1; tree_view->header_has_focus = FALSE; tree_view->press_start_x = -1; tree_view->press_start_y = -1; tree_view->reorderable = FALSE; tree_view->presize_handler_tick_cb = 0; tree_view->scroll_sync_timer = 0; tree_view->fixed_height = -1; tree_view->fixed_height_mode = FALSE; tree_view->fixed_height_check = 0; tree_view->selection = _gtk_tree_selection_new_with_tree_view (tree_view); tree_view->enable_search = TRUE; tree_view->search_column = -1; tree_view->search_equal_func = gtk_tree_view_search_equal_func; tree_view->search_custom_entry_set = FALSE; tree_view->typeselect_flush_timeout = 0; tree_view->width = 0; tree_view->expander_size = -1; tree_view->hover_selection = FALSE; tree_view->hover_expand = FALSE; tree_view->level_indentation = 0; tree_view->rubber_banding_enable = FALSE; tree_view->grid_lines = GTK_TREE_VIEW_GRID_LINES_NONE; tree_view->tree_lines_enabled = FALSE; tree_view->tooltip_column = -1; tree_view->event_last_x = -10000; tree_view->event_last_y = -10000; gtk_tree_view_do_set_vadjustment (tree_view, NULL); gtk_tree_view_do_set_hadjustment (tree_view, NULL); gtk_widget_add_css_class (GTK_WIDGET (tree_view), GTK_STYLE_CLASS_VIEW); widget_node = gtk_widget_get_css_node (GTK_WIDGET (tree_view)); tree_view->header_node = gtk_css_node_new (); gtk_css_node_set_name (tree_view->header_node, g_quark_from_static_string ("header")); gtk_css_node_set_parent (tree_view->header_node, widget_node); gtk_css_node_set_state (tree_view->header_node, gtk_css_node_get_state (widget_node)); g_object_unref (tree_view->header_node); tree_view->click_gesture = gtk_gesture_click_new (); gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (tree_view->click_gesture), 0); g_signal_connect (tree_view->click_gesture, "pressed", G_CALLBACK (gtk_tree_view_click_gesture_pressed), tree_view); g_signal_connect (tree_view->click_gesture, "released", G_CALLBACK (gtk_tree_view_click_gesture_released), tree_view); gtk_widget_add_controller (GTK_WIDGET (tree_view), GTK_EVENT_CONTROLLER (tree_view->click_gesture)); gesture = gtk_gesture_click_new (); g_signal_connect (gesture, "pressed", G_CALLBACK (gtk_tree_view_column_click_gesture_pressed), tree_view); gtk_event_controller_set_propagation_phase (GTK_EVENT_CONTROLLER (gesture), GTK_PHASE_CAPTURE); gtk_widget_add_controller (GTK_WIDGET (tree_view), GTK_EVENT_CONTROLLER (gesture)); tree_view->drag_gesture = gtk_gesture_drag_new (); g_signal_connect (tree_view->drag_gesture, "drag-begin", G_CALLBACK (gtk_tree_view_drag_gesture_begin), tree_view); g_signal_connect (tree_view->drag_gesture, "drag-update", G_CALLBACK (gtk_tree_view_drag_gesture_update), tree_view); g_signal_connect (tree_view->drag_gesture, "drag-end", G_CALLBACK (gtk_tree_view_drag_gesture_end), tree_view); gtk_widget_add_controller (GTK_WIDGET (tree_view), GTK_EVENT_CONTROLLER (tree_view->drag_gesture)); tree_view->column_drag_gesture = gtk_gesture_drag_new (); g_signal_connect (tree_view->column_drag_gesture, "drag-begin", G_CALLBACK (gtk_tree_view_column_drag_gesture_begin), tree_view); g_signal_connect (tree_view->column_drag_gesture, "drag-update", G_CALLBACK (gtk_tree_view_column_drag_gesture_update), tree_view); g_signal_connect (tree_view->column_drag_gesture, "drag-end", G_CALLBACK (gtk_tree_view_column_drag_gesture_end), tree_view); gtk_event_controller_set_propagation_phase (GTK_EVENT_CONTROLLER (tree_view->column_drag_gesture), GTK_PHASE_CAPTURE); gtk_widget_add_controller (GTK_WIDGET (tree_view), GTK_EVENT_CONTROLLER (tree_view->column_drag_gesture)); controller = gtk_event_controller_motion_new (); g_signal_connect (controller, "enter", G_CALLBACK (gtk_tree_view_motion_controller_enter), tree_view); g_signal_connect (controller, "leave", G_CALLBACK (gtk_tree_view_motion_controller_leave), tree_view); g_signal_connect (controller, "motion", G_CALLBACK (gtk_tree_view_motion_controller_motion), tree_view); gtk_widget_add_controller (GTK_WIDGET (tree_view), controller); controller = gtk_event_controller_key_new (); g_signal_connect (controller, "key-pressed", G_CALLBACK (gtk_tree_view_key_controller_key_pressed), tree_view); g_signal_connect (controller, "key-released", G_CALLBACK (gtk_tree_view_key_controller_key_released), tree_view); g_signal_connect (controller, "focus-out", G_CALLBACK (gtk_tree_view_key_controller_focus_out), tree_view); gtk_widget_add_controller (GTK_WIDGET (tree_view), controller); } /* GObject Methods */ static void gtk_tree_view_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) { GtkTreeView *tree_view; tree_view = GTK_TREE_VIEW (object); switch (prop_id) { case PROP_MODEL: gtk_tree_view_set_model (tree_view, g_value_get_object (value)); break; case PROP_HADJUSTMENT: gtk_tree_view_do_set_hadjustment (tree_view, g_value_get_object (value)); break; case PROP_VADJUSTMENT: gtk_tree_view_do_set_vadjustment (tree_view, g_value_get_object (value)); break; case PROP_HSCROLL_POLICY: if (tree_view->hscroll_policy != g_value_get_enum (value)) { tree_view->hscroll_policy = g_value_get_enum (value); gtk_widget_queue_resize (GTK_WIDGET (tree_view)); g_object_notify_by_pspec (object, pspec); } break; case PROP_VSCROLL_POLICY: if (tree_view->vscroll_policy != g_value_get_enum (value)) { tree_view->vscroll_policy = g_value_get_enum (value); gtk_widget_queue_resize (GTK_WIDGET (tree_view)); g_object_notify_by_pspec (object, pspec); } break; case PROP_HEADERS_VISIBLE: gtk_tree_view_set_headers_visible (tree_view, g_value_get_boolean (value)); break; case PROP_HEADERS_CLICKABLE: gtk_tree_view_set_headers_clickable (tree_view, g_value_get_boolean (value)); break; case PROP_EXPANDER_COLUMN: gtk_tree_view_set_expander_column (tree_view, g_value_get_object (value)); break; case PROP_REORDERABLE: gtk_tree_view_set_reorderable (tree_view, g_value_get_boolean (value)); break; case PROP_ENABLE_SEARCH: gtk_tree_view_set_enable_search (tree_view, g_value_get_boolean (value)); break; case PROP_SEARCH_COLUMN: gtk_tree_view_set_search_column (tree_view, g_value_get_int (value)); break; case PROP_FIXED_HEIGHT_MODE: gtk_tree_view_set_fixed_height_mode (tree_view, g_value_get_boolean (value)); break; case PROP_HOVER_SELECTION: if (tree_view->hover_selection != g_value_get_boolean (value)) { tree_view->hover_selection = g_value_get_boolean (value); g_object_notify_by_pspec (object, pspec); } break; case PROP_HOVER_EXPAND: if (tree_view->hover_expand != g_value_get_boolean (value)) { tree_view->hover_expand = g_value_get_boolean (value); g_object_notify_by_pspec (object, pspec); } break; case PROP_SHOW_EXPANDERS: gtk_tree_view_set_show_expanders (tree_view, g_value_get_boolean (value)); break; case PROP_LEVEL_INDENTATION: if (tree_view->level_indentation != g_value_get_int (value)) { tree_view->level_indentation = g_value_get_int (value); g_object_notify_by_pspec (object, pspec); } break; case PROP_RUBBER_BANDING: if (tree_view->rubber_banding_enable != g_value_get_boolean (value)) { tree_view->rubber_banding_enable = g_value_get_boolean (value); g_object_notify_by_pspec (object, pspec); } break; case PROP_ENABLE_GRID_LINES: gtk_tree_view_set_grid_lines (tree_view, g_value_get_enum (value)); break; case PROP_ENABLE_TREE_LINES: gtk_tree_view_set_enable_tree_lines (tree_view, g_value_get_boolean (value)); break; case PROP_TOOLTIP_COLUMN: gtk_tree_view_set_tooltip_column (tree_view, g_value_get_int (value)); break; case PROP_ACTIVATE_ON_SINGLE_CLICK: gtk_tree_view_set_activate_on_single_click (tree_view, g_value_get_boolean (value)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gtk_tree_view_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) { GtkTreeView *tree_view; tree_view = GTK_TREE_VIEW (object); switch (prop_id) { case PROP_MODEL: g_value_set_object (value, tree_view->model); break; case PROP_HADJUSTMENT: g_value_set_object (value, tree_view->hadjustment); break; case PROP_VADJUSTMENT: g_value_set_object (value, tree_view->vadjustment); break; case PROP_HSCROLL_POLICY: g_value_set_enum (value, tree_view->hscroll_policy); break; case PROP_VSCROLL_POLICY: g_value_set_enum (value, tree_view->vscroll_policy); break; case PROP_HEADERS_VISIBLE: g_value_set_boolean (value, gtk_tree_view_get_headers_visible (tree_view)); break; case PROP_HEADERS_CLICKABLE: g_value_set_boolean (value, gtk_tree_view_get_headers_clickable (tree_view)); break; case PROP_EXPANDER_COLUMN: g_value_set_object (value, tree_view->expander_column); break; case PROP_REORDERABLE: g_value_set_boolean (value, tree_view->reorderable); break; case PROP_ENABLE_SEARCH: g_value_set_boolean (value, tree_view->enable_search); break; case PROP_SEARCH_COLUMN: g_value_set_int (value, tree_view->search_column); break; case PROP_FIXED_HEIGHT_MODE: g_value_set_boolean (value, tree_view->fixed_height_mode); break; case PROP_HOVER_SELECTION: g_value_set_boolean (value, tree_view->hover_selection); break; case PROP_HOVER_EXPAND: g_value_set_boolean (value, tree_view->hover_expand); break; case PROP_SHOW_EXPANDERS: g_value_set_boolean (value, tree_view->show_expanders); break; case PROP_LEVEL_INDENTATION: g_value_set_int (value, tree_view->level_indentation); break; case PROP_RUBBER_BANDING: g_value_set_boolean (value, tree_view->rubber_banding_enable); break; case PROP_ENABLE_GRID_LINES: g_value_set_enum (value, tree_view->grid_lines); break; case PROP_ENABLE_TREE_LINES: g_value_set_boolean (value, tree_view->tree_lines_enabled); break; case PROP_TOOLTIP_COLUMN: g_value_set_int (value, tree_view->tooltip_column); break; case PROP_ACTIVATE_ON_SINGLE_CLICK: g_value_set_boolean (value, tree_view->activate_on_single_click); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gtk_tree_view_finalize (GObject *object) { G_OBJECT_CLASS (gtk_tree_view_parent_class)->finalize (object); } static GtkBuildableIface *parent_buildable_iface; static void gtk_tree_view_buildable_init (GtkBuildableIface *iface) { parent_buildable_iface = g_type_interface_peek_parent (iface); iface->add_child = gtk_tree_view_buildable_add_child; iface->get_internal_child = gtk_tree_view_buildable_get_internal_child; } static void gtk_tree_view_buildable_add_child (GtkBuildable *tree_view, GtkBuilder *builder, GObject *child, const gchar *type) { if (GTK_IS_TREE_VIEW_COLUMN (child)) gtk_tree_view_append_column (GTK_TREE_VIEW (tree_view), GTK_TREE_VIEW_COLUMN (child)); else parent_buildable_iface->add_child (tree_view, builder, child, type); } static GObject * gtk_tree_view_buildable_get_internal_child (GtkBuildable *buildable, GtkBuilder *builder, const gchar *childname) { if (strcmp (childname, "selection") == 0) return G_OBJECT (GTK_TREE_VIEW (buildable)->selection); return parent_buildable_iface->get_internal_child (buildable, builder, childname); } /* GtkWidget Methods */ static void gtk_tree_view_free_rbtree (GtkTreeView *tree_view) { gtk_tree_rbtree_free (tree_view->tree); tree_view->tree = NULL; tree_view->button_pressed_node = NULL; tree_view->button_pressed_tree = NULL; tree_view->prelight_tree = NULL; tree_view->prelight_node = NULL; } static void gtk_tree_view_destroy_search_popover (GtkTreeView *tree_view) { gtk_widget_destroy (tree_view->search_popover); tree_view->search_popover = NULL; tree_view->search_entry = NULL; tree_view->search_entry_changed_id = 0; } static void gtk_tree_view_destroy (GtkWidget *widget) { GtkTreeView *tree_view = GTK_TREE_VIEW (widget); GList *list; gtk_tree_view_stop_editing (tree_view, TRUE); gtk_tree_view_stop_rubber_band (tree_view); if (tree_view->columns != NULL) { list = tree_view->columns; while (list) { GtkTreeViewColumn *column; column = GTK_TREE_VIEW_COLUMN (list->data); list = list->next; gtk_tree_view_remove_column (tree_view, column); } tree_view->columns = NULL; } if (tree_view->tree != NULL) { gtk_tree_view_unref_and_check_selection_tree (tree_view, tree_view->tree); gtk_tree_view_free_rbtree (tree_view); } if (tree_view->selection != NULL) { _gtk_tree_selection_set_tree_view (tree_view->selection, NULL); g_object_unref (tree_view->selection); tree_view->selection = NULL; } g_clear_pointer (&tree_view->scroll_to_path, gtk_tree_row_reference_free); g_clear_pointer (&tree_view->drag_dest_row, gtk_tree_row_reference_free); g_clear_pointer (&tree_view->top_row, gtk_tree_row_reference_free); if (tree_view->column_drop_func_data && tree_view->column_drop_func_data_destroy) { tree_view->column_drop_func_data_destroy (tree_view->column_drop_func_data); tree_view->column_drop_func_data = NULL; } gtk_tree_row_reference_free (tree_view->anchor); tree_view->anchor = NULL; /* destroy interactive search dialog */ if (tree_view->search_popover) { gtk_tree_view_destroy_search_popover (tree_view); if (tree_view->typeselect_flush_timeout) { g_source_remove (tree_view->typeselect_flush_timeout); tree_view->typeselect_flush_timeout = 0; } } if (tree_view->search_custom_entry_set) { GtkEventController *controller; g_signal_handlers_disconnect_by_func (tree_view->search_entry, G_CALLBACK (gtk_tree_view_search_init), tree_view); if (GTK_IS_ENTRY (tree_view->search_entry)) controller = gtk_entry_get_key_controller (GTK_ENTRY (tree_view->search_entry)); else controller = gtk_search_entry_get_key_controller (GTK_SEARCH_ENTRY (tree_view->search_entry)); g_signal_handlers_disconnect_by_func (controller, G_CALLBACK (gtk_tree_view_search_key_pressed), tree_view); g_object_unref (tree_view->search_entry); tree_view->search_entry = NULL; tree_view->search_custom_entry_set = FALSE; } if (tree_view->search_destroy && tree_view->search_user_data) { tree_view->search_destroy (tree_view->search_user_data); tree_view->search_user_data = NULL; } if (tree_view->search_position_destroy && tree_view->search_position_user_data) { tree_view->search_position_destroy (tree_view->search_position_user_data); tree_view->search_position_user_data = NULL; } if (tree_view->row_separator_destroy && tree_view->row_separator_data) { tree_view->row_separator_destroy (tree_view->row_separator_data); tree_view->row_separator_data = NULL; } gtk_tree_view_set_model (tree_view, NULL); g_clear_object (&tree_view->hadjustment); g_clear_object (&tree_view->vadjustment); g_clear_object (&tree_view->horizontal_grid_line_texture); g_clear_object (&tree_view->vertical_grid_line_texture); g_clear_object (&tree_view->horizontal_tree_line_texture); g_clear_object (&tree_view->vertical_tree_line_texture); GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->destroy (widget); } /* GtkWidget::map helper */ static void gtk_tree_view_map_buttons (GtkTreeView *tree_view) { GList *list; g_return_if_fail (gtk_widget_get_mapped (GTK_WIDGET (tree_view))); if (tree_view->headers_visible) { GtkTreeViewColumn *column; GtkWidget *button; for (list = tree_view->columns; list; list = list->next) { column = list->data; button = gtk_tree_view_column_get_button (column); if (gtk_tree_view_column_get_visible (column) && button) gtk_widget_show (button); if (gtk_widget_get_visible (button) && !gtk_widget_get_mapped (button)) gtk_widget_map (button); } } } static void gtk_tree_view_map (GtkWidget *widget) { GtkTreeView *tree_view = GTK_TREE_VIEW (widget); GList *tmp_list; GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->map (widget); tmp_list = tree_view->children; while (tmp_list) { GtkTreeViewChild *child = tmp_list->data; tmp_list = tmp_list->next; if (gtk_widget_get_visible (child->widget)) { if (!gtk_widget_get_mapped (child->widget)) gtk_widget_map (child->widget); } } gtk_tree_view_map_buttons (tree_view); } static void gtk_tree_view_realize (GtkWidget *widget) { GtkTreeView *tree_view = GTK_TREE_VIEW (widget); GList *tmp_list; GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->realize (widget); for (tmp_list = tree_view->columns; tmp_list; tmp_list = tmp_list->next) _gtk_tree_view_column_realize_button (GTK_TREE_VIEW_COLUMN (tmp_list->data)); /* Need to call those here, since they create GCs */ gtk_tree_view_set_grid_lines (tree_view, tree_view->grid_lines); gtk_tree_view_set_enable_tree_lines (tree_view, tree_view->tree_lines_enabled); install_presize_handler (tree_view); } static void gtk_tree_view_unrealize (GtkWidget *widget) { GtkTreeView *tree_view = GTK_TREE_VIEW (widget); if (tree_view->scroll_timeout != 0) { g_source_remove (tree_view->scroll_timeout); tree_view->scroll_timeout = 0; } if (tree_view->auto_expand_timeout != 0) { g_source_remove (tree_view->auto_expand_timeout); tree_view->auto_expand_timeout = 0; } if (tree_view->open_dest_timeout != 0) { g_source_remove (tree_view->open_dest_timeout); tree_view->open_dest_timeout = 0; } if (tree_view->presize_handler_tick_cb != 0) { gtk_widget_remove_tick_callback (widget, tree_view->presize_handler_tick_cb); tree_view->presize_handler_tick_cb = 0; } if (tree_view->validate_rows_timer != 0) { g_source_remove (tree_view->validate_rows_timer); tree_view->validate_rows_timer = 0; } if (tree_view->scroll_sync_timer != 0) { g_source_remove (tree_view->scroll_sync_timer); tree_view->scroll_sync_timer = 0; } if (tree_view->typeselect_flush_timeout) { g_source_remove (tree_view->typeselect_flush_timeout); tree_view->typeselect_flush_timeout = 0; } GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->unrealize (widget); } /* GtkWidget::get_preferred_height helper */ static void gtk_tree_view_update_height (GtkTreeView *tree_view) { GList *list; tree_view->header_height = 0; for (list = tree_view->columns; list; list = list->next) { GtkRequisition requisition; GtkTreeViewColumn *column = list->data; GtkWidget *button = gtk_tree_view_column_get_button (column); if (button == NULL) continue; gtk_widget_get_preferred_size (button, &requisition, NULL); tree_view->header_height = MAX (tree_view->header_height, requisition.height); } } static gint gtk_tree_view_get_height (GtkTreeView *tree_view) { if (tree_view->tree == NULL) return 0; else return tree_view->tree->root->offset; } static void gtk_tree_view_measure (GtkWidget *widget, GtkOrientation orientation, int for_size, int *minimum, int *natural, int *minimum_baseline, int *natural_baseline) { GtkTreeView *tree_view = GTK_TREE_VIEW (widget); if (orientation == GTK_ORIENTATION_HORIZONTAL) { GList *list; GtkTreeViewColumn *column; gint width = 0; /* we validate some rows initially just to make sure we have some size. * In practice, with a lot of static lists, this should get a good width. */ do_validate_rows (tree_view, FALSE); /* keep this in sync with size_allocate below */ for (list = tree_view->columns; list; list = list->next) { column = list->data; if (!gtk_tree_view_column_get_visible (column) || column == tree_view->drag_column) continue; width += _gtk_tree_view_column_request_width (column); } *minimum = *natural = width; } else /* VERTICAL */ { int height; gtk_tree_view_update_height (tree_view); height = gtk_tree_view_get_height (tree_view) + gtk_tree_view_get_effective_header_height (tree_view); *minimum = *natural = height; } } static int gtk_tree_view_calculate_width_before_expander (GtkTreeView *tree_view) { int width = 0; GList *list; gboolean rtl; rtl = (_gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL); for (list = (rtl ? g_list_last (tree_view->columns) : g_list_first (tree_view->columns)); list->data != tree_view->expander_column; list = (rtl ? list->prev : list->next)) { GtkTreeViewColumn *column = list->data; width += gtk_tree_view_column_get_width (column); } return width; } /* GtkWidget::size_allocate helper */ static void gtk_tree_view_size_allocate_columns (GtkWidget *widget) { GtkTreeView *tree_view = GTK_TREE_VIEW (widget); const int x_offset = - gtk_adjustment_get_value (tree_view->hadjustment); GList *list, *first_column, *last_column; GtkTreeViewColumn *column; gint widget_width, width = 0; gint extra, extra_per_column; gint full_requested_width = 0; gint number_of_expand_columns = 0; gboolean rtl; for (last_column = g_list_last (tree_view->columns); last_column && !(gtk_tree_view_column_get_visible (GTK_TREE_VIEW_COLUMN (last_column->data))); last_column = last_column->prev) ; if (last_column == NULL) return; for (first_column = g_list_first (tree_view->columns); first_column && !(gtk_tree_view_column_get_visible (GTK_TREE_VIEW_COLUMN (first_column->data))); first_column = first_column->next) ; if (first_column == NULL) return; rtl = (_gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL); /* find out how many extra space and expandable columns we have */ for (list = tree_view->columns; list != last_column->next; list = list->next) { column = (GtkTreeViewColumn *)list->data; if (!gtk_tree_view_column_get_visible (column) || column == tree_view->drag_column) continue; full_requested_width += _gtk_tree_view_column_request_width (column); if (gtk_tree_view_column_get_expand (column)) number_of_expand_columns++; } widget_width = gtk_widget_get_width (widget); extra = MAX (widget_width - full_requested_width, 0); if (number_of_expand_columns > 0) extra_per_column = extra/number_of_expand_columns; else extra_per_column = 0; for (list = first_column; list != last_column->next; list = list->next) { gint column_width; column = list->data; column_width = _gtk_tree_view_column_request_width (column); if (!gtk_tree_view_column_get_visible (column)) continue; if (column == tree_view->drag_column) goto next; if (gtk_tree_view_column_get_expand (column)) { if (number_of_expand_columns == 1) { /* We add the remander to the last column as * */ column_width += extra; } else { column_width += extra_per_column; extra -= extra_per_column; number_of_expand_columns --; } } else if (number_of_expand_columns == 0 && list == last_column) { column_width += extra; } if (rtl) _gtk_tree_view_column_allocate (column, widget_width - width - column_width + x_offset, column_width, tree_view->header_height); else _gtk_tree_view_column_allocate (column, width + x_offset, column_width, tree_view->header_height); next: width += column_width; } /* We change the width here. The user might have been resizing columns, * which changes the total width of the tree view. This is of * importance for getting the horizontal scroll bar right. */ tree_view->width = width; } /* GtkWidget::size_allocate helper */ static void gtk_tree_view_size_allocate_drag_column (GtkWidget *widget) { GtkTreeView *tree_view = GTK_TREE_VIEW (widget); GtkAllocation allocation; int baseline; GtkWidget *button; if (tree_view->drag_column == NULL) return; button = gtk_tree_view_column_get_button (tree_view->drag_column); allocation.x = tree_view->drag_column_x; allocation.y = tree_view->drag_column_y; allocation.width = gtk_widget_get_allocated_width (button); allocation.height = gtk_widget_get_allocated_height (button); baseline = gtk_widget_get_allocated_baseline (button); gtk_widget_size_allocate (button, &allocation, baseline); } static void gtk_tree_view_size_allocate (GtkWidget *widget, int width, int height, int baseline) { GtkTreeView *tree_view = GTK_TREE_VIEW (widget); GList *tmp_list; double page_size; /* We size-allocate the columns first because the width of the * tree view (used in updating the adjustments below) might change. */ gtk_tree_view_size_allocate_columns (widget); gtk_tree_view_size_allocate_drag_column (widget); page_size = gtk_adjustment_get_page_size (tree_view->vadjustment); gtk_adjustment_configure (tree_view->hadjustment, gtk_adjustment_get_value (tree_view->hadjustment) + (_gtk_widget_get_direction(widget) == GTK_TEXT_DIR_RTL ? width - page_size : 0), 0, MAX (width, tree_view->width), width * 0.1, width * 0.9, width); page_size = height - gtk_tree_view_get_effective_header_height (tree_view); gtk_adjustment_configure (tree_view->vadjustment, gtk_adjustment_get_value (tree_view->vadjustment), 0, MAX (page_size, gtk_tree_view_get_height (tree_view)), page_size * 0.1, page_size * 0.9, page_size); /* now the adjustments and window sizes are in sync, we can sync toprow/dy again */ if (gtk_tree_row_reference_valid (tree_view->top_row)) gtk_tree_view_top_row_to_dy (tree_view); else gtk_tree_view_dy_to_top_row (tree_view); if (gtk_widget_get_realized (widget)) { if (tree_view->tree == NULL) invalidate_empty_focus (tree_view); if (tree_view->expander_column) { /* Might seem awkward, but is the best heuristic I could come up * with. Only if the width of the columns before the expander * changes, we will update the prelight status. It is this * width that makes the expander move vertically. Always updating * prelight status causes trouble with hover selections. */ gint width_before_expander; width_before_expander = gtk_tree_view_calculate_width_before_expander (tree_view); if (tree_view->prev_width_before_expander != width_before_expander) update_prelight (tree_view, tree_view->event_last_x, tree_view->event_last_y); tree_view->prev_width_before_expander = width_before_expander; } } for (tmp_list = tree_view->children; tmp_list; tmp_list = tmp_list->next) { GtkTreeViewChild *child = tmp_list->data; GtkTreePath *path; GdkRectangle child_rect; int min_x, max_x, min_y, max_y; int size; GtkTextDirection direction; direction = _gtk_widget_get_direction (child->widget); path = _gtk_tree_path_new_from_rbtree (child->tree, child->node); gtk_tree_view_get_cell_area (tree_view, path, child->column, &child_rect); child_rect.x += child->border.left; child_rect.y += child->border.top; child_rect.width -= child->border.left + child->border.right; child_rect.height -= child->border.top + child->border.bottom; gtk_widget_measure (GTK_WIDGET (child->widget), GTK_ORIENTATION_HORIZONTAL, -1, &size, NULL, NULL, NULL); if (size > child_rect.width) { /* Enlarge the child, extending it to the left (RTL) */ if (direction == GTK_TEXT_DIR_RTL) child_rect.x -= (size - child_rect.width); /* or to the right (LTR) */ else child_rect.x += 0; child_rect.width = size; } gtk_widget_measure (GTK_WIDGET (child->widget), GTK_ORIENTATION_VERTICAL, child_rect.width, &size, NULL, NULL, NULL); if (size > child_rect.height) { /* Enlarge the child, extending in both directions equally */ child_rect.y -= (size - child_rect.height) / 2; child_rect.height = size; } /* push the rect back in the visible area if needed, * preferring the top left corner (for RTL) * or top right corner (for LTR) */ min_x = gtk_adjustment_get_value (tree_view->hadjustment); max_x = min_x + width - child_rect.width; min_y = 0; max_y = min_y + height - gtk_tree_view_get_effective_header_height (tree_view) - child_rect.height; if (direction == GTK_TEXT_DIR_LTR) /* Ensure that child's right edge is not sticking to the right * (if (child_rect.x > max_x) child_rect.x = max_x), * then ensure that child's left edge is visible and is not sticking to the left * (if (child_rect.x < min_x) child_rect.x = min_x). */ child_rect.x = MAX (min_x, MIN (max_x, child_rect.x)); else /* Ensure that child's left edge is not sticking to the left * (if (child_rect.x < min_x) child_rect.x = min_x), * then ensure that child's right edge is visible and is not sticking to the right * (if (child_rect.x > max_x) child_rect.x = max_x). */ child_rect.x = MIN (max_x, MAX (min_x, child_rect.x)); child_rect.y = MAX (min_y, MIN (max_y, child_rect.y)); gtk_tree_path_free (path); gtk_widget_size_allocate (child->widget, &child_rect, -1); } if (tree_view->search_popover) gtk_native_check_resize (GTK_NATIVE (tree_view->search_popover)); } /* Grabs the focus and unsets the GTK_TREE_VIEW_DRAW_KEYFOCUS flag */ static void grab_focus_and_unset_draw_keyfocus (GtkTreeView *tree_view) { GtkWidget *widget = GTK_WIDGET (tree_view); if (gtk_widget_get_can_focus (widget) && !gtk_widget_has_focus (widget) && !_gtk_widget_get_shadowed (widget)) gtk_widget_grab_focus (widget); tree_view->draw_keyfocus = 0; } static inline gboolean row_is_separator (GtkTreeView *tree_view, GtkTreeIter *iter, GtkTreePath *path) { gboolean is_separator = FALSE; if (tree_view->row_separator_func) { GtkTreeIter tmpiter; if (iter) tmpiter = *iter; else { if (!gtk_tree_model_get_iter (tree_view->model, &tmpiter, path)) return FALSE; } is_separator = tree_view->row_separator_func (tree_view->model, &tmpiter, tree_view->row_separator_data); } return is_separator; } static int gtk_tree_view_get_expander_size (GtkTreeView *tree_view) { GtkStyleContext *context; GtkCssStyle *style; int min_width; int min_height; int expander_size; if (tree_view->expander_size != -1) return tree_view->expander_size; context = gtk_widget_get_style_context (GTK_WIDGET (tree_view)); gtk_style_context_save (context); gtk_style_context_add_class (context, GTK_STYLE_CLASS_EXPANDER); style = gtk_style_context_lookup_style (context); min_width = _gtk_css_number_value_get (style->size->min_width, 100); min_height = _gtk_css_number_value_get (style->size->min_height, 100); gtk_style_context_restore (context); expander_size = MAX (min_width, min_height); tree_view->expander_size = expander_size + (_TREE_VIEW_HORIZONTAL_SEPARATOR / 2); return tree_view->expander_size; } static void get_current_selection_modifiers (GtkWidget *widget, gboolean *modify, gboolean *extend) { GdkModifierType state = 0; GdkModifierType mask; *modify = FALSE; *extend = FALSE; if (gtk_get_current_event_state (&state)) { mask = gtk_widget_get_modifier_mask (widget, GDK_MODIFIER_INTENT_MODIFY_SELECTION); if ((state & mask) == mask) *modify = TRUE; mask = gtk_widget_get_modifier_mask (widget, GDK_MODIFIER_INTENT_EXTEND_SELECTION); if ((state & mask) == mask) *extend = TRUE; } } static void gtk_tree_view_click_gesture_pressed (GtkGestureClick *gesture, gint n_press, gdouble x, gdouble y, GtkTreeView *tree_view) { GtkWidget *widget = GTK_WIDGET (tree_view); GdkRectangle background_area, cell_area; GtkTreeViewColumn *column = NULL; GdkEventSequence *sequence; GdkModifierType modifiers; const GdkEvent *event; gint new_y, y_offset; gint bin_x, bin_y; GtkTreePath *path; GtkTreeRBNode *node; GtkTreeRBTree *tree; gint depth; guint button; GList *list; gboolean rtl; rtl = (_gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL); gtk_tree_view_stop_editing (tree_view, FALSE); button = gtk_gesture_single_get_current_button (GTK_GESTURE_SINGLE (gesture)); if (button > 3) { gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_DENIED); return; } /* Because grab_focus can cause reentrancy, we delay grab_focus until after * we're done handling the button press. */ gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, x, y, &bin_x, &bin_y); gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_CLAIMED); if (n_press > 1) gtk_gesture_set_state (tree_view->drag_gesture, GTK_EVENT_SEQUENCE_DENIED); /* Empty tree? */ if (tree_view->tree == NULL) { grab_focus_and_unset_draw_keyfocus (tree_view); return; } /* are we in an arrow? */ if (tree_view->prelight_node && tree_view->arrow_prelit && gtk_tree_view_draw_expanders (tree_view)) { if (button == GDK_BUTTON_PRIMARY) { tree_view->button_pressed_node = tree_view->prelight_node; tree_view->button_pressed_tree = tree_view->prelight_tree; gtk_widget_queue_draw (widget); } grab_focus_and_unset_draw_keyfocus (tree_view); return; } /* find the node that was clicked */ new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, bin_y); if (new_y < 0) new_y = 0; y_offset = -gtk_tree_rbtree_find_offset (tree_view->tree, new_y, &tree, &node); if (node == NULL) { /* We clicked in dead space */ grab_focus_and_unset_draw_keyfocus (tree_view); return; } /* Get the path and the node */ path = _gtk_tree_path_new_from_rbtree (tree, node); if (row_is_separator (tree_view, NULL, path)) { gtk_tree_path_free (path); grab_focus_and_unset_draw_keyfocus (tree_view); return; } depth = gtk_tree_path_get_depth (path); background_area.y = y_offset + bin_y; background_area.height = gtk_tree_view_get_row_height (tree_view, node); background_area.x = 0; gtk_tree_view_convert_bin_window_to_widget_coords (tree_view, background_area.x, background_area.y, &background_area.x, &background_area.y); /* Let the column have a chance at selecting it. */ rtl = (_gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL); for (list = (rtl ? g_list_last (tree_view->columns) : g_list_first (tree_view->columns)); list; list = (rtl ? list->prev : list->next)) { GtkTreeViewColumn *candidate = list->data; if (!gtk_tree_view_column_get_visible (candidate)) continue; background_area.width = gtk_tree_view_column_get_width (candidate); if ((background_area.x > bin_x) || (background_area.x + background_area.width <= bin_x)) { background_area.x += background_area.width; continue; } /* we found the focus column */ column = candidate; cell_area = background_area; cell_area.width -= _TREE_VIEW_HORIZONTAL_SEPARATOR; cell_area.x += _TREE_VIEW_HORIZONTAL_SEPARATOR / 2; if (gtk_tree_view_is_expander_column (tree_view, column)) { if (!rtl) cell_area.x += (depth - 1) * tree_view->level_indentation; cell_area.width -= (depth - 1) * tree_view->level_indentation; if (gtk_tree_view_draw_expanders (tree_view)) { gint expander_size = gtk_tree_view_get_expander_size (tree_view); if (!rtl) cell_area.x += depth * expander_size; cell_area.width -= depth * expander_size; } } break; } if (column == NULL) { gtk_tree_path_free (path); grab_focus_and_unset_draw_keyfocus (tree_view); gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_DENIED); return; } _gtk_tree_view_set_focus_column (tree_view, column); sequence = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture)); event = gtk_gesture_get_last_event (GTK_GESTURE (gesture), sequence); gdk_event_get_state (event, &modifiers); /* decide if we edit */ if (button == GDK_BUTTON_PRIMARY && !(modifiers & gtk_accelerator_get_default_mod_mask ())) { GtkTreePath *anchor; GtkTreeIter iter; gtk_tree_model_get_iter (tree_view->model, &iter, path); gtk_tree_view_column_cell_set_cell_data (column, tree_view->model, &iter, GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_PARENT), node->children?TRUE:FALSE); if (tree_view->anchor) anchor = gtk_tree_row_reference_get_path (tree_view->anchor); else anchor = NULL; if ((anchor && !gtk_tree_path_compare (anchor, path)) || !_gtk_tree_view_column_has_editable_cell (column)) { GtkCellEditable *cell_editable = NULL; /* FIXME: get the right flags */ guint flags = 0; if (_gtk_tree_view_column_cell_event (column, (GdkEvent *)event, &cell_area, flags)) { GtkCellArea *area = gtk_cell_layout_get_area (GTK_CELL_LAYOUT (column)); cell_editable = gtk_cell_area_get_edit_widget (area); if (cell_editable != NULL) { gtk_tree_path_free (path); gtk_tree_path_free (anchor); return; } } } if (anchor) gtk_tree_path_free (anchor); } /* we only handle selection modifications on the first button press */ if (n_press == 1) { GtkCellRenderer *focus_cell; gboolean modify, extend; get_current_selection_modifiers (widget, &modify, &extend); tree_view->modify_selection_pressed = modify; tree_view->extend_selection_pressed = extend; /* We update the focus cell here, this is also needed if the * column does not contain an editable cell. In this case, * GtkCellArea did not receive the event for processing (and * could not update the focus cell). */ focus_cell = _gtk_tree_view_column_get_cell_at_pos (column, &cell_area, &background_area, bin_x, bin_y); if (focus_cell) gtk_tree_view_column_focus_cell (column, focus_cell); if (modify) { gtk_tree_view_real_set_cursor (tree_view, path, CLAMP_NODE); gtk_tree_view_real_toggle_cursor_row (tree_view); } else if (extend) { gtk_tree_view_real_set_cursor (tree_view, path, CLAMP_NODE); gtk_tree_view_real_select_cursor_row (tree_view, FALSE); } else { gtk_tree_view_real_set_cursor (tree_view, path, CLEAR_AND_SELECT | CLAMP_NODE); } tree_view->modify_selection_pressed = FALSE; tree_view->extend_selection_pressed = FALSE; } if (button == GDK_BUTTON_PRIMARY && n_press == 2) gtk_tree_view_row_activated (tree_view, path, column); else { if (n_press == 1) { tree_view->button_pressed_node = tree_view->prelight_node; tree_view->button_pressed_tree = tree_view->prelight_tree; } grab_focus_and_unset_draw_keyfocus (tree_view); } gtk_tree_path_free (path); if (n_press >= 2) gtk_event_controller_reset (GTK_EVENT_CONTROLLER (gesture)); } static void gtk_tree_view_drag_gesture_begin (GtkGestureDrag *gesture, gdouble start_x, gdouble start_y, GtkTreeView *tree_view) { gint bin_x, bin_y; GtkTreeRBTree *tree; GtkTreeRBNode *node; if (tree_view->tree == NULL) { gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_DENIED); return; } gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, start_x, start_y, &bin_x, &bin_y); tree_view->press_start_x = tree_view->rubber_band_x = bin_x; tree_view->press_start_y = tree_view->rubber_band_y = bin_y; gtk_tree_rbtree_find_offset (tree_view->tree, bin_y + tree_view->dy, &tree, &node); if (tree_view->rubber_banding_enable && !GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_SELECTED) && gtk_tree_selection_get_mode (tree_view->selection) == GTK_SELECTION_MULTIPLE) { gboolean modify, extend; tree_view->press_start_y += tree_view->dy; tree_view->rubber_band_y += tree_view->dy; tree_view->rubber_band_status = RUBBER_BAND_MAYBE_START; get_current_selection_modifiers (GTK_WIDGET (tree_view), &modify, &extend); tree_view->rubber_band_modify = modify; tree_view->rubber_band_extend = extend; } } static void gtk_tree_view_column_click_gesture_pressed (GtkGestureClick *gesture, gint n_press, gdouble x, gdouble y, GtkTreeView *tree_view) { GtkTreeViewColumn *column; GList *list; if (n_press != 2) return; for (list = tree_view->columns; list; list = list->next) { column = list->data; if (!_gtk_tree_view_column_coords_in_resize_rect (column, x, y) || !gtk_tree_view_column_get_resizable (column)) continue; if (gtk_tree_view_column_get_sizing (column) != GTK_TREE_VIEW_COLUMN_AUTOSIZE) { gtk_tree_view_column_set_fixed_width (column, -1); gtk_tree_view_column_set_expand (column, FALSE); _gtk_tree_view_column_autosize (tree_view, column); } gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_CLAIMED); break; } } static void gtk_tree_view_column_drag_gesture_begin (GtkGestureDrag *gesture, gdouble start_x, gdouble start_y, GtkTreeView *tree_view) { GtkTreeViewColumn *column; gboolean rtl; GList *list; gint i; rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL); for (i = 0, list = tree_view->columns; list; list = list->next, i++) { gpointer drag_data; gint column_width; column = list->data; if (!_gtk_tree_view_column_coords_in_resize_rect (column, start_x, start_y)) continue; if (!gtk_tree_view_column_get_resizable (column)) break; tree_view->in_column_resize = TRUE; /* block attached dnd signal handler */ drag_data = g_object_get_data (G_OBJECT (tree_view), "gtk-site-data"); if (drag_data) g_signal_handlers_block_matched (tree_view, G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, drag_data); column_width = gtk_tree_view_column_get_width (column); gtk_tree_view_column_set_fixed_width (column, column_width); gtk_tree_view_column_set_expand (column, FALSE); tree_view->drag_pos = i; tree_view->x_drag = start_x + (rtl ? column_width : -column_width); if (!gtk_widget_has_focus (GTK_WIDGET (tree_view))) gtk_widget_grab_focus (GTK_WIDGET (tree_view)); gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_CLAIMED); return; } } static void gtk_tree_view_update_button_position (GtkTreeView *tree_view, GtkTreeViewColumn *column) { GList *column_el; column_el = g_list_find (tree_view->columns, column); g_return_if_fail (column_el != NULL); gtk_css_node_insert_after (tree_view->header_node, gtk_widget_get_css_node (gtk_tree_view_column_get_button (column)), column_el->prev ? gtk_widget_get_css_node ( gtk_tree_view_column_get_button (column_el->prev->data)) : NULL); } /* column drag gesture helper */ static gboolean gtk_tree_view_button_release_drag_column (GtkTreeView *tree_view) { GtkWidget *button, *widget = GTK_WIDGET (tree_view); GList *l; gboolean rtl; GtkStyleContext *context; rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL); /* Move the button back */ button = gtk_tree_view_column_get_button (tree_view->drag_column); context = gtk_widget_get_style_context (button); gtk_style_context_remove_class (context, GTK_STYLE_CLASS_DND); gtk_tree_view_update_button_position (tree_view, tree_view->drag_column); gtk_widget_queue_allocate (widget); gtk_widget_grab_focus (button); if (rtl) { if (tree_view->cur_reorder && tree_view->cur_reorder->right_column != tree_view->drag_column) gtk_tree_view_move_column_after (tree_view, tree_view->drag_column, tree_view->cur_reorder->right_column); } else { if (tree_view->cur_reorder && tree_view->cur_reorder->left_column != tree_view->drag_column) gtk_tree_view_move_column_after (tree_view, tree_view->drag_column, tree_view->cur_reorder->left_column); } tree_view->drag_column = NULL; for (l = tree_view->column_drag_info; l != NULL; l = l->next) g_slice_free (GtkTreeViewColumnReorder, l->data); g_list_free (tree_view->column_drag_info); tree_view->column_drag_info = NULL; tree_view->cur_reorder = NULL; /* Reset our flags */ tree_view->drag_column_surface_state = DRAG_COLUMN_WINDOW_STATE_UNSET; tree_view->in_column_drag = FALSE; return TRUE; } /* column drag gesture helper */ static gboolean gtk_tree_view_button_release_column_resize (GtkTreeView *tree_view) { gpointer drag_data; tree_view->drag_pos = -1; /* unblock attached dnd signal handler */ drag_data = g_object_get_data (G_OBJECT (tree_view), "gtk-site-data"); if (drag_data) g_signal_handlers_unblock_matched (tree_view, G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, drag_data); tree_view->in_column_resize = FALSE; return TRUE; } static void gtk_tree_view_column_drag_gesture_end (GtkGestureDrag *gesture, gdouble offset_x, gdouble offset_y, GtkTreeView *tree_view) { GdkEventSequence *sequence; sequence = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture)); /* Cancel reorder if the drag got cancelled */ if (!gtk_gesture_handles_sequence (GTK_GESTURE (gesture), sequence)) tree_view->cur_reorder = NULL; if (tree_view->in_column_drag) gtk_tree_view_button_release_drag_column (tree_view); else if (tree_view->in_column_resize) gtk_tree_view_button_release_column_resize (tree_view); } static void gtk_tree_view_drag_gesture_end (GtkGestureDrag *gesture, gdouble offset_x, gdouble offset_y, GtkTreeView *tree_view) { gtk_tree_view_stop_rubber_band (tree_view); } static void gtk_tree_view_click_gesture_released (GtkGestureClick *gesture, gint n_press, gdouble x, gdouble y, GtkTreeView *tree_view) { gboolean modify, extend; guint button; button = gtk_gesture_single_get_current_button (GTK_GESTURE_SINGLE (gesture)); if (button != GDK_BUTTON_PRIMARY || tree_view->button_pressed_node == NULL || tree_view->button_pressed_node != tree_view->prelight_node) return; get_current_selection_modifiers (GTK_WIDGET (tree_view), &modify, &extend); if (tree_view->arrow_prelit) { GtkTreePath *path = NULL; path = _gtk_tree_path_new_from_rbtree (tree_view->button_pressed_tree, tree_view->button_pressed_node); /* Actually activate the node */ if (tree_view->button_pressed_node->children == NULL) gtk_tree_view_real_expand_row (tree_view, path, tree_view->button_pressed_tree, tree_view->button_pressed_node, FALSE, TRUE); else gtk_tree_view_real_collapse_row (tree_view, path, tree_view->button_pressed_tree, tree_view->button_pressed_node, TRUE); gtk_tree_path_free (path); } else if (tree_view->activate_on_single_click && !modify && !extend) { GtkTreePath *path = NULL; path = _gtk_tree_path_new_from_rbtree (tree_view->button_pressed_tree, tree_view->button_pressed_node); gtk_tree_view_row_activated (tree_view, path, tree_view->focus_column); gtk_tree_path_free (path); } tree_view->button_pressed_tree = NULL; tree_view->button_pressed_node = NULL; } /* GtkWidget::motion_event function set. */ static gboolean coords_are_over_arrow (GtkTreeView *tree_view, GtkTreeRBTree *tree, GtkTreeRBNode *node, /* these are in bin window coords */ gint x, gint y) { GdkRectangle arrow; gint x2; if (!gtk_widget_get_realized (GTK_WIDGET (tree_view))) return FALSE; if ((node->flags & GTK_TREE_RBNODE_IS_PARENT) == 0) return FALSE; arrow.y = gtk_tree_view_get_row_y_offset (tree_view, tree, node); arrow.height = gtk_tree_view_get_row_height (tree_view, node); gtk_tree_view_get_arrow_xrange (tree_view, tree, &arrow.x, &x2); arrow.width = x2 - arrow.x; return (x >= arrow.x && x < (arrow.x + arrow.width) && y >= arrow.y && y < (arrow.y + arrow.height)); } static gboolean auto_expand_timeout (gpointer data) { GtkTreeView *tree_view = GTK_TREE_VIEW (data); GtkTreePath *path; if (tree_view->prelight_node) { path = _gtk_tree_path_new_from_rbtree (tree_view->prelight_tree, tree_view->prelight_node); if (tree_view->prelight_node->children) gtk_tree_view_collapse_row (tree_view, path); else gtk_tree_view_expand_row (tree_view, path, FALSE); gtk_tree_path_free (path); } tree_view->auto_expand_timeout = 0; return FALSE; } static void remove_auto_expand_timeout (GtkTreeView *tree_view) { if (tree_view->auto_expand_timeout != 0) { g_source_remove (tree_view->auto_expand_timeout); tree_view->auto_expand_timeout = 0; } } static void do_prelight (GtkTreeView *tree_view, GtkTreeRBTree *tree, GtkTreeRBNode *node, /* these are in bin_window coords */ gint x, gint y) { if (tree_view->prelight_tree == tree && tree_view->prelight_node == node) { /* We are still on the same node, but we might need to take care of the arrow */ if (tree && node && gtk_tree_view_draw_expanders (tree_view)) { gboolean over_arrow; over_arrow = coords_are_over_arrow (tree_view, tree, node, x, y); if (over_arrow != tree_view->arrow_prelit) { if (over_arrow) tree_view->arrow_prelit = TRUE; else tree_view->arrow_prelit = FALSE; gtk_widget_queue_draw (GTK_WIDGET (tree_view)); } } return; } if (tree_view->prelight_tree && tree_view->prelight_node) { /* Unprelight the old node and arrow */ GTK_TREE_RBNODE_UNSET_FLAG (tree_view->prelight_node, GTK_TREE_RBNODE_IS_PRELIT); if (tree_view->arrow_prelit && gtk_tree_view_draw_expanders (tree_view)) { tree_view->arrow_prelit = FALSE; gtk_widget_queue_draw (GTK_WIDGET (tree_view)); } gtk_widget_queue_draw (GTK_WIDGET (tree_view)); } if (tree_view->hover_expand) remove_auto_expand_timeout (tree_view); /* Set the new prelight values */ tree_view->prelight_node = node; tree_view->prelight_tree = tree; if (!node || !tree) return; /* Prelight the new node and arrow */ if (gtk_tree_view_draw_expanders (tree_view) && coords_are_over_arrow (tree_view, tree, node, x, y)) { tree_view->arrow_prelit = TRUE; gtk_widget_queue_draw (GTK_WIDGET (tree_view)); } GTK_TREE_RBNODE_SET_FLAG (node, GTK_TREE_RBNODE_IS_PRELIT); gtk_widget_queue_draw (GTK_WIDGET (tree_view)); if (tree_view->hover_expand) { tree_view->auto_expand_timeout = g_timeout_add (AUTO_EXPAND_TIMEOUT, auto_expand_timeout, tree_view); g_source_set_name_by_id (tree_view->auto_expand_timeout, "[gtk] auto_expand_timeout"); } } static void prelight_or_select (GtkTreeView *tree_view, GtkTreeRBTree *tree, GtkTreeRBNode *node, /* these are in bin_window coords */ gint x, gint y) { GtkSelectionMode mode = gtk_tree_selection_get_mode (tree_view->selection); if (tree_view->hover_selection && (mode == GTK_SELECTION_SINGLE || mode == GTK_SELECTION_BROWSE) && !(tree_view->edited_column && gtk_cell_area_get_edit_widget (gtk_cell_layout_get_area (GTK_CELL_LAYOUT (tree_view->edited_column))))) { if (node) { if (!GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_SELECTED)) { GtkTreePath *path; path = _gtk_tree_path_new_from_rbtree (tree, node); gtk_tree_selection_select_path (tree_view->selection, path); if (GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_SELECTED)) { tree_view->draw_keyfocus = FALSE; gtk_tree_view_real_set_cursor (tree_view, path, 0); } gtk_tree_path_free (path); } } else if (mode == GTK_SELECTION_SINGLE) gtk_tree_selection_unselect_all (tree_view->selection); } do_prelight (tree_view, tree, node, x, y); } static void ensure_unprelighted (GtkTreeView *tree_view) { do_prelight (tree_view, NULL, NULL, -1000, -1000); /* coords not possibly over an arrow */ g_assert (tree_view->prelight_node == NULL); } static void update_prelight (GtkTreeView *tree_view, gint x, gint y) { int new_y; GtkTreeRBTree *tree; GtkTreeRBNode *node; if (tree_view->tree == NULL) return; if (x == -10000) { ensure_unprelighted (tree_view); return; } new_y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, y); if (new_y < 0) new_y = 0; gtk_tree_rbtree_find_offset (tree_view->tree, new_y, &tree, &node); if (node) prelight_or_select (tree_view, tree, node, x, y); } static gboolean gtk_tree_view_motion_resize_column (GtkTreeView *tree_view, gdouble x, gdouble y) { gint new_width; GtkTreeViewColumn *column; column = gtk_tree_view_get_column (tree_view, tree_view->drag_pos); if (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL) new_width = MAX (tree_view->x_drag - x, 0); else new_width = MAX (x - tree_view->x_drag, 0); if (new_width != gtk_tree_view_column_get_fixed_width (column)) gtk_tree_view_column_set_fixed_width (column, new_width); return FALSE; } static void gtk_tree_view_update_current_reorder (GtkTreeView *tree_view) { GtkTreeViewColumnReorder *reorder = NULL; GdkEventSequence *sequence; GList *list; gdouble x; sequence = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (tree_view->column_drag_gesture)); gtk_gesture_get_point (tree_view->column_drag_gesture, sequence, &x, NULL); x += gtk_adjustment_get_value (tree_view->hadjustment); for (list = tree_view->column_drag_info; list; list = list->next) { reorder = (GtkTreeViewColumnReorder *) list->data; if (x >= reorder->left_align && x < reorder->right_align) break; reorder = NULL; } tree_view->cur_reorder = reorder; } static void gtk_tree_view_vertical_autoscroll (GtkTreeView *tree_view) { GdkRectangle visible_rect; gint y; gint offset; if (gtk_gesture_is_recognized (tree_view->drag_gesture)) { GdkEventSequence *sequence; gdouble py; sequence = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (tree_view->drag_gesture)); gtk_gesture_get_point (tree_view->drag_gesture, sequence, NULL, &py); gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, 0, py, NULL, &y); } else { y = tree_view->event_last_y; gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, 0, y, NULL, &y); } y += tree_view->dy; gtk_tree_view_get_visible_rect (tree_view, &visible_rect); /* see if we are near the edge. */ offset = y - (visible_rect.y + 2 * SCROLL_EDGE_SIZE); if (offset > 0) { offset = y - (visible_rect.y + visible_rect.height - 2 * SCROLL_EDGE_SIZE); if (offset < 0) return; } gtk_adjustment_set_value (tree_view->vadjustment, MAX (gtk_adjustment_get_value (tree_view->vadjustment) + offset, 0.0)); } static void gtk_tree_view_horizontal_autoscroll (GtkTreeView *tree_view) { GdkEventSequence *sequence; GdkRectangle visible_rect; gdouble x; gint offset; sequence = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (tree_view->column_drag_gesture)); gtk_gesture_get_point (tree_view->column_drag_gesture, sequence, &x, NULL); gtk_tree_view_get_visible_rect (tree_view, &visible_rect); x += gtk_adjustment_get_value (tree_view->hadjustment); /* See if we are near the edge. */ offset = x - (visible_rect.x + SCROLL_EDGE_SIZE); if (offset > 0) { offset = x - (visible_rect.x + visible_rect.width - SCROLL_EDGE_SIZE); if (offset < 0) return; } offset = offset/3; gtk_adjustment_set_value (tree_view->hadjustment, MAX (gtk_adjustment_get_value (tree_view->hadjustment) + offset, 0.0)); } static void gtk_tree_view_motion_drag_column (GtkTreeView *tree_view, gdouble x, gdouble y) { GtkTreeViewColumn *column = tree_view->drag_column; GtkWidget *button; gint width, button_width; button = gtk_tree_view_column_get_button (column); x += gtk_adjustment_get_value (tree_view->hadjustment); /* Handle moving the header */ width = gtk_widget_get_allocated_width (GTK_WIDGET (tree_view)); button_width = gtk_widget_get_allocated_width (button); tree_view->drag_column_x = CLAMP (x - _gtk_tree_view_column_get_drag_x (column), 0, MAX (tree_view->width, width) - button_width); /* autoscroll, if needed */ gtk_tree_view_horizontal_autoscroll (tree_view); /* Update the current reorder position and arrow; */ gtk_tree_view_update_current_reorder (tree_view); gtk_widget_queue_allocate (GTK_WIDGET (tree_view)); } static void gtk_tree_view_stop_rubber_band (GtkTreeView *tree_view) { remove_scroll_timeout (tree_view); if (tree_view->rubber_band_status == RUBBER_BAND_ACTIVE) { GtkTreePath *tmp_path; gtk_widget_queue_draw (GTK_WIDGET (tree_view)); /* The anchor path should be set to the start path */ if (tree_view->rubber_band_start_node) { tmp_path = _gtk_tree_path_new_from_rbtree (tree_view->rubber_band_start_tree, tree_view->rubber_band_start_node); if (tree_view->anchor) gtk_tree_row_reference_free (tree_view->anchor); tree_view->anchor = gtk_tree_row_reference_new (tree_view->model, tmp_path); gtk_tree_path_free (tmp_path); } /* ... and the cursor to the end path */ if (tree_view->rubber_band_end_node) { tmp_path = _gtk_tree_path_new_from_rbtree (tree_view->rubber_band_end_tree, tree_view->rubber_band_end_node); gtk_tree_view_real_set_cursor (GTK_TREE_VIEW (tree_view), tmp_path, 0); gtk_tree_path_free (tmp_path); } _gtk_tree_selection_emit_changed (tree_view->selection); gtk_css_node_set_parent (tree_view->rubber_band_cssnode, NULL); tree_view->rubber_band_cssnode = NULL; } /* Clear status variables */ tree_view->rubber_band_status = RUBBER_BAND_OFF; tree_view->rubber_band_extend = FALSE; tree_view->rubber_band_modify = FALSE; tree_view->rubber_band_start_node = NULL; tree_view->rubber_band_start_tree = NULL; tree_view->rubber_band_end_node = NULL; tree_view->rubber_band_end_tree = NULL; } static void gtk_tree_view_update_rubber_band_selection_range (GtkTreeView *tree_view, GtkTreeRBTree *start_tree, GtkTreeRBNode *start_node, GtkTreeRBTree *end_tree, GtkTreeRBNode *end_node, gboolean select, gboolean skip_start, gboolean skip_end) { if (start_node == end_node) return; /* We skip the first node and jump inside the loop */ if (skip_start) goto skip_first; do { /* Small optimization by assuming insensitive nodes are never * selected. */ if (!GTK_TREE_RBNODE_FLAG_SET (start_node, GTK_TREE_RBNODE_IS_SELECTED)) { GtkTreePath *path; gboolean selectable; path = _gtk_tree_path_new_from_rbtree (start_tree, start_node); selectable = _gtk_tree_selection_row_is_selectable (tree_view->selection, start_node, path); gtk_tree_path_free (path); if (!selectable) goto node_not_selectable; } if (select) { if (tree_view->rubber_band_extend) GTK_TREE_RBNODE_SET_FLAG (start_node, GTK_TREE_RBNODE_IS_SELECTED); else if (tree_view->rubber_band_modify) { /* Toggle the selection state */ if (GTK_TREE_RBNODE_FLAG_SET (start_node, GTK_TREE_RBNODE_IS_SELECTED)) GTK_TREE_RBNODE_UNSET_FLAG (start_node, GTK_TREE_RBNODE_IS_SELECTED); else GTK_TREE_RBNODE_SET_FLAG (start_node, GTK_TREE_RBNODE_IS_SELECTED); } else GTK_TREE_RBNODE_SET_FLAG (start_node, GTK_TREE_RBNODE_IS_SELECTED); } else { /* Mirror the above */ if (tree_view->rubber_band_extend) GTK_TREE_RBNODE_UNSET_FLAG (start_node, GTK_TREE_RBNODE_IS_SELECTED); else if (tree_view->rubber_band_modify) { /* Toggle the selection state */ if (GTK_TREE_RBNODE_FLAG_SET (start_node, GTK_TREE_RBNODE_IS_SELECTED)) GTK_TREE_RBNODE_UNSET_FLAG (start_node, GTK_TREE_RBNODE_IS_SELECTED); else GTK_TREE_RBNODE_SET_FLAG (start_node, GTK_TREE_RBNODE_IS_SELECTED); } else GTK_TREE_RBNODE_UNSET_FLAG (start_node, GTK_TREE_RBNODE_IS_SELECTED); } gtk_widget_queue_draw (GTK_WIDGET (tree_view)); node_not_selectable: if (start_node == end_node) break; skip_first: if (start_node->children) { start_tree = start_node->children; start_node = gtk_tree_rbtree_first (start_tree); } else { gtk_tree_rbtree_next_full (start_tree, start_node, &start_tree, &start_node); if (!start_tree) /* Ran out of tree */ break; } if (skip_end && start_node == end_node) break; } while (TRUE); } static void gtk_tree_view_update_rubber_band_selection (GtkTreeView *tree_view) { GtkTreeRBTree *start_tree, *end_tree; GtkTreeRBNode *start_node, *end_node; gdouble start_y, offset_y; gint bin_y; if (!gtk_gesture_is_active (tree_view->drag_gesture)) return; gtk_gesture_drag_get_offset (GTK_GESTURE_DRAG (tree_view->drag_gesture), NULL, &offset_y); gtk_gesture_drag_get_start_point (GTK_GESTURE_DRAG (tree_view->drag_gesture), NULL, &start_y); gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, 0, start_y, NULL, &bin_y); bin_y = MAX (0, bin_y + offset_y + tree_view->dy); gtk_tree_rbtree_find_offset (tree_view->tree, MIN (tree_view->press_start_y, bin_y), &start_tree, &start_node); gtk_tree_rbtree_find_offset (tree_view->tree, MAX (tree_view->press_start_y, bin_y), &end_tree, &end_node); /* Handle the start area first */ if (!start_node && !end_node) { if (tree_view->rubber_band_start_node) { GtkTreeRBNode *node = tree_view->rubber_band_start_node; if (tree_view->rubber_band_modify) { /* Toggle the selection state */ if (GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_SELECTED)) GTK_TREE_RBNODE_UNSET_FLAG (node, GTK_TREE_RBNODE_IS_SELECTED); else GTK_TREE_RBNODE_SET_FLAG (node, GTK_TREE_RBNODE_IS_SELECTED); } else GTK_TREE_RBNODE_UNSET_FLAG (node, GTK_TREE_RBNODE_IS_SELECTED); gtk_widget_queue_draw (GTK_WIDGET (tree_view)); } } if (!tree_view->rubber_band_start_node || !start_node) { gtk_tree_view_update_rubber_band_selection_range (tree_view, start_tree, start_node, end_tree, end_node, TRUE, FALSE, FALSE); } else if (gtk_tree_rbtree_node_find_offset (start_tree, start_node) < gtk_tree_rbtree_node_find_offset (tree_view->rubber_band_start_tree, tree_view->rubber_band_start_node)) { /* New node is above the old one; selection became bigger */ gtk_tree_view_update_rubber_band_selection_range (tree_view, start_tree, start_node, tree_view->rubber_band_start_tree, tree_view->rubber_band_start_node, TRUE, FALSE, TRUE); } else if (gtk_tree_rbtree_node_find_offset (start_tree, start_node) > gtk_tree_rbtree_node_find_offset (tree_view->rubber_band_start_tree, tree_view->rubber_band_start_node)) { /* New node is below the old one; selection became smaller */ gtk_tree_view_update_rubber_band_selection_range (tree_view, tree_view->rubber_band_start_tree, tree_view->rubber_band_start_node, start_tree, start_node, FALSE, FALSE, TRUE); } tree_view->rubber_band_start_tree = start_tree; tree_view->rubber_band_start_node = start_node; /* Next, handle the end area */ if (!tree_view->rubber_band_end_node) { /* In the event this happens, start_node was also NULL; this case is * handled above. */ } else if (!end_node) { /* Find the last node in the tree */ gtk_tree_rbtree_find_offset (tree_view->tree, gtk_tree_view_get_height (tree_view) - 1, &end_tree, &end_node); /* Selection reached end of the tree */ gtk_tree_view_update_rubber_band_selection_range (tree_view, tree_view->rubber_band_end_tree, tree_view->rubber_band_end_node, end_tree, end_node, TRUE, TRUE, FALSE); } else if (gtk_tree_rbtree_node_find_offset (end_tree, end_node) > gtk_tree_rbtree_node_find_offset (tree_view->rubber_band_end_tree, tree_view->rubber_band_end_node)) { /* New node is below the old one; selection became bigger */ gtk_tree_view_update_rubber_band_selection_range (tree_view, tree_view->rubber_band_end_tree, tree_view->rubber_band_end_node, end_tree, end_node, TRUE, TRUE, FALSE); } else if (gtk_tree_rbtree_node_find_offset (end_tree, end_node) < gtk_tree_rbtree_node_find_offset (tree_view->rubber_band_end_tree, tree_view->rubber_band_end_node)) { /* New node is above the old one; selection became smaller */ gtk_tree_view_update_rubber_band_selection_range (tree_view, end_tree, end_node, tree_view->rubber_band_end_tree, tree_view->rubber_band_end_node, FALSE, TRUE, FALSE); } tree_view->rubber_band_end_tree = end_tree; tree_view->rubber_band_end_node = end_node; } static void gtk_tree_view_update_rubber_band (GtkTreeView *tree_view) { gdouble start_x, start_y, offset_x, offset_y, x, y; gint bin_x, bin_y; if (!gtk_gesture_is_recognized (tree_view->drag_gesture)) return; gtk_gesture_drag_get_offset (GTK_GESTURE_DRAG (tree_view->drag_gesture), &offset_x, &offset_y); gtk_gesture_drag_get_start_point (GTK_GESTURE_DRAG (tree_view->drag_gesture), &start_x, &start_y); gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, start_x, start_y, &bin_x, &bin_y); bin_y += tree_view->dy; x = MAX (bin_x + offset_x, 0); y = MAX (bin_y + offset_y, 0); gtk_widget_queue_draw (GTK_WIDGET (tree_view)); tree_view->rubber_band_x = x; tree_view->rubber_band_y = y; gtk_tree_view_update_rubber_band_selection (tree_view); } static void gtk_tree_view_snapshot_rubber_band (GtkTreeView *tree_view, GtkSnapshot *snapshot) { gdouble start_x, start_y, offset_x, offset_y; GdkRectangle rect; GtkStyleContext *context; gint bin_x, bin_y; if (!gtk_gesture_is_recognized (tree_view->drag_gesture)) return; gtk_gesture_drag_get_offset (GTK_GESTURE_DRAG (tree_view->drag_gesture), &offset_x, &offset_y); gtk_gesture_drag_get_start_point (GTK_GESTURE_DRAG (tree_view->drag_gesture), &start_x, &start_y); gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, start_x, start_y, &bin_x, &bin_y); bin_x = MAX (0, bin_x + offset_x); bin_y = MAX (0, bin_y + offset_y + tree_view->dy); context = gtk_widget_get_style_context (GTK_WIDGET (tree_view)); gtk_style_context_save_to_node (context, tree_view->rubber_band_cssnode); rect.x = MIN (tree_view->press_start_x, bin_x); rect.y = MIN (tree_view->press_start_y, bin_y) - tree_view->dy; rect.width = ABS (tree_view->press_start_x - bin_x) + 1; rect.height = ABS (tree_view->press_start_y - bin_y) + 1; gtk_snapshot_render_background (snapshot, context, rect.x, rect.y, rect.width, rect.height); gtk_snapshot_render_frame (snapshot, context, rect.x, rect.y, rect.width, rect.height); gtk_style_context_restore (context); } static void gtk_tree_view_column_drag_gesture_update (GtkGestureDrag *gesture, gdouble offset_x, gdouble offset_y, GtkTreeView *tree_view) { gdouble start_x, start_y, x, y; GdkEventSequence *sequence; sequence = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture)); if (gtk_gesture_get_sequence_state (GTK_GESTURE (gesture), sequence) != GTK_EVENT_SEQUENCE_CLAIMED) return; gtk_gesture_drag_get_start_point (gesture, &start_x, &start_y); x = start_x + offset_x; y = start_y + offset_y; if (tree_view->in_column_resize) gtk_tree_view_motion_resize_column (tree_view, x, y); else if (tree_view->in_column_drag) gtk_tree_view_motion_drag_column (tree_view, x, y); } static void gtk_tree_view_drag_gesture_update (GtkGestureDrag *gesture, gdouble offset_x, gdouble offset_y, GtkTreeView *tree_view) { if (tree_view->tree == NULL) { gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_DENIED); return; } if (tree_view->rubber_band_status == RUBBER_BAND_MAYBE_START) { GtkCssNode *widget_node; widget_node = gtk_widget_get_css_node (GTK_WIDGET (tree_view)); tree_view->rubber_band_cssnode = gtk_css_node_new (); gtk_css_node_set_name (tree_view->rubber_band_cssnode, g_quark_from_static_string ("rubberband")); gtk_css_node_set_parent (tree_view->rubber_band_cssnode, widget_node); gtk_css_node_set_state (tree_view->rubber_band_cssnode, gtk_css_node_get_state (widget_node)); g_object_unref (tree_view->rubber_band_cssnode); gtk_tree_view_update_rubber_band (tree_view); tree_view->rubber_band_status = RUBBER_BAND_ACTIVE; gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_CLAIMED); } else if (tree_view->rubber_band_status == RUBBER_BAND_ACTIVE) { gtk_tree_view_update_rubber_band (tree_view); add_scroll_timeout (tree_view); } else if (!tree_view->rubber_band_status) { if (gtk_tree_view_maybe_begin_dragging_row (tree_view)) gtk_gesture_set_state (GTK_GESTURE (gesture), GTK_EVENT_SEQUENCE_DENIED); } } static void gtk_tree_view_motion_controller_motion (GtkEventControllerMotion *controller, double x, double y, GtkTreeView *tree_view) { GtkTreeRBTree *tree; GtkTreeRBNode *node; gint new_y; GList *list; gboolean cursor_set = FALSE; if (tree_view->tree) { gint bin_x, bin_y; /* If we are currently pressing down a button, we don't want to prelight anything else. */ if (gtk_gesture_is_active (tree_view->drag_gesture) || gtk_gesture_is_active (tree_view->click_gesture)) node = NULL; gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, x, y, &bin_x, &bin_y); new_y = MAX (0, TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, bin_y)); gtk_tree_rbtree_find_offset (tree_view->tree, new_y, &tree, &node); tree_view->event_last_x = bin_x; tree_view->event_last_y = bin_y; prelight_or_select (tree_view, tree, node, bin_x, bin_y); } for (list = tree_view->columns; list; list = list->next) { GtkTreeViewColumn *column = list->data; if (_gtk_tree_view_column_coords_in_resize_rect (column, x, y)) { gtk_widget_set_cursor_from_name (GTK_WIDGET (tree_view), "col-resize"); cursor_set = TRUE; break; } } if (!cursor_set) gtk_widget_set_cursor (GTK_WIDGET (tree_view), NULL); } /* Invalidate the focus rectangle near the edge of the bin_window; used when * the tree is empty. */ static void invalidate_empty_focus (GtkTreeView *tree_view) { if (!gtk_widget_has_focus (GTK_WIDGET (tree_view))) return; gtk_widget_queue_draw (GTK_WIDGET (tree_view)); } static void gtk_tree_view_snapshot_grid_line (GtkTreeView *tree_view, GtkSnapshot *snapshot, GtkOrientation orientation, const graphene_point_t *start, float size) { GtkStyleContext *context; const GdkRGBA *grid_line_color; context = gtk_widget_get_style_context (GTK_WIDGET (tree_view)); grid_line_color = gtk_css_color_value_get_rgba (_gtk_style_context_peek_property (context, GTK_CSS_PROPERTY_BORDER_TOP_COLOR)); if (!gdk_rgba_equal (grid_line_color, &tree_view->grid_line_color) || (orientation == GTK_ORIENTATION_HORIZONTAL && !tree_view->horizontal_grid_line_texture) || (orientation == GTK_ORIENTATION_VERTICAL && !tree_view->vertical_grid_line_texture)) { cairo_surface_t *surface; unsigned char *data; g_clear_object (&tree_view->horizontal_grid_line_texture); g_clear_object (&tree_view->vertical_grid_line_texture); tree_view->grid_line_color = *grid_line_color; surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 2, 1); data = cairo_image_surface_get_data (surface); /* just color the first pixel... */ data[0] = round (grid_line_color->blue * 255); data[1] = round (grid_line_color->green * 255); data[2] = round (grid_line_color->red * 255); data[3] = round (grid_line_color->alpha * 255); tree_view->horizontal_grid_line_texture = gdk_texture_new_for_surface (surface); cairo_surface_destroy (surface); surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 1, 2); data = cairo_image_surface_get_data (surface); data[0] = round (grid_line_color->blue * 255); data[1] = round (grid_line_color->green * 255); data[2] = round (grid_line_color->red * 255); data[3] = round (grid_line_color->alpha * 255); tree_view->vertical_grid_line_texture = gdk_texture_new_for_surface (surface); cairo_surface_destroy (surface); } g_assert (tree_view->horizontal_grid_line_texture); g_assert (tree_view->vertical_grid_line_texture); if (orientation == GTK_ORIENTATION_HORIZONTAL) { gtk_snapshot_push_repeat (snapshot, &GRAPHENE_RECT_INIT ( start->x, start->y, size, 1), NULL); gtk_snapshot_append_texture (snapshot, tree_view->horizontal_grid_line_texture, &GRAPHENE_RECT_INIT (0, 0, 2, 1)); gtk_snapshot_pop (snapshot); } else /* VERTICAL */ { gtk_snapshot_push_repeat (snapshot, &GRAPHENE_RECT_INIT ( start->x, start->y, 1, size), NULL); gtk_snapshot_append_texture (snapshot, tree_view->vertical_grid_line_texture, &GRAPHENE_RECT_INIT (0, 0, 1, 2)); gtk_snapshot_pop (snapshot); } } static void gtk_tree_view_snapshot_tree_line (GtkTreeView *tree_view, GtkSnapshot *snapshot, GtkOrientation orientation, const graphene_point_t *start, float size) { GtkStyleContext *context; const GdkRGBA *tree_line_color; context = gtk_widget_get_style_context (GTK_WIDGET (tree_view)); tree_line_color = gtk_css_color_value_get_rgba (_gtk_style_context_peek_property (context, GTK_CSS_PROPERTY_BORDER_LEFT_COLOR)); if (!gdk_rgba_equal (tree_line_color, &tree_view->tree_line_color) || (orientation == GTK_ORIENTATION_HORIZONTAL && !tree_view->horizontal_tree_line_texture) || (orientation == GTK_ORIENTATION_VERTICAL && !tree_view->vertical_tree_line_texture)) { cairo_surface_t *surface; unsigned char *data; g_clear_object (&tree_view->horizontal_tree_line_texture); g_clear_object (&tree_view->vertical_tree_line_texture); tree_view->tree_line_color = *tree_line_color; surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 2, 1); data = cairo_image_surface_get_data (surface); /* just color the first pixel... */ data[0] = round (tree_line_color->blue * 255); data[1] = round (tree_line_color->green * 255); data[2] = round (tree_line_color->red * 255); data[3] = round (tree_line_color->alpha * 255); tree_view->horizontal_tree_line_texture = gdk_texture_new_for_surface (surface); cairo_surface_destroy (surface); surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 1, 2); data = cairo_image_surface_get_data (surface); data[0] = round (tree_line_color->blue * 255); data[1] = round (tree_line_color->green * 255); data[2] = round (tree_line_color->red * 255); data[3] = round (tree_line_color->alpha * 255); tree_view->vertical_tree_line_texture = gdk_texture_new_for_surface (surface); cairo_surface_destroy (surface); } g_assert (tree_view->horizontal_tree_line_texture); g_assert (tree_view->vertical_tree_line_texture); if (orientation == GTK_ORIENTATION_HORIZONTAL) { gtk_snapshot_push_repeat (snapshot, &GRAPHENE_RECT_INIT ( start->x, start->y, size, 1), NULL); gtk_snapshot_append_texture (snapshot, tree_view->horizontal_tree_line_texture, &GRAPHENE_RECT_INIT (0, 0, 2, 1)); gtk_snapshot_pop (snapshot); } else /* VERTICAL */ { gtk_snapshot_push_repeat (snapshot, &GRAPHENE_RECT_INIT ( start->x, start->y, 1, size), NULL); gtk_snapshot_append_texture (snapshot, tree_view->vertical_tree_line_texture, &GRAPHENE_RECT_INIT (0, 0, 1, 2)); gtk_snapshot_pop (snapshot); } } static void gtk_tree_view_snapshot_grid_lines (GtkTreeView *tree_view, GtkSnapshot *snapshot) { GList *list, *first, *last; gboolean rtl; int current_x = 0; int tree_view_height; if (tree_view->grid_lines != GTK_TREE_VIEW_GRID_LINES_VERTICAL && tree_view->grid_lines != GTK_TREE_VIEW_GRID_LINES_BOTH) return; rtl = (_gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL); first = g_list_first (tree_view->columns); last = g_list_last (tree_view->columns); tree_view_height = gtk_tree_view_get_height (tree_view); for (list = (rtl ? last : first); list; list = (rtl ? list->prev : list->next)) { GtkTreeViewColumn *column = list->data; /* We don't want a line for the last column */ if (column == (rtl ? first->data : last->data)) break; if (!gtk_tree_view_column_get_visible (column)) continue; current_x += gtk_tree_view_column_get_width (column); gtk_tree_view_snapshot_grid_line (tree_view, snapshot, GTK_ORIENTATION_VERTICAL, &(graphene_point_t) { current_x - 1, 0 }, tree_view_height); } } /* Warning: Very scary function. * Modify at your own risk * * KEEP IN SYNC WITH gtk_tree_view_create_row_drag_icon()! * FIXME: It’s not... */ static void gtk_tree_view_bin_snapshot (GtkWidget *widget, GtkSnapshot *snapshot) { GtkTreeView *tree_view = GTK_TREE_VIEW (widget); const int x_scroll_offset = - gtk_adjustment_get_value (tree_view->hadjustment); GtkTreePath *path; GtkTreeRBTree *tree; GList *list; GtkTreeRBNode *node; GtkTreeRBNode *drag_highlight = NULL; GtkTreeRBTree *drag_highlight_tree = NULL; GtkTreeIter iter; gint new_y; gint y_offset, cell_offset; gint max_height; gint depth; GdkRectangle background_area; GdkRectangle cell_area; GdkRectangle clip; guint flags; gint bin_window_width; gint bin_window_height; GtkTreePath *drag_dest_path; GList *first_column, *last_column; gboolean has_can_focus_cell; gboolean rtl; gint n_visible_columns; gint expander_size; gboolean draw_vgrid_lines, draw_hgrid_lines; GtkStyleContext *context; gboolean parity; rtl = (_gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL); context = gtk_widget_get_style_context (widget); if (tree_view->tree == NULL) return; bin_window_width = gtk_widget_get_width (GTK_WIDGET (tree_view)); bin_window_height = gtk_widget_get_height(GTK_WIDGET (tree_view)); clip = (GdkRectangle) { 0, 0, bin_window_width, bin_window_height }; new_y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, clip.y); y_offset = -gtk_tree_rbtree_find_offset (tree_view->tree, new_y, &tree, &node); if (gtk_tree_view_get_height (tree_view) < bin_window_height) { gtk_style_context_save (context); gtk_style_context_add_class (context, GTK_STYLE_CLASS_CELL); gtk_snapshot_render_background (snapshot, context, 0, gtk_tree_view_get_height (tree_view), bin_window_width, bin_window_height - gtk_tree_view_get_height (tree_view)); gtk_style_context_restore (context); } if (node == NULL) return; /* find the path for the node */ path = _gtk_tree_path_new_from_rbtree (tree, node); gtk_tree_model_get_iter (tree_view->model, &iter, path); depth = gtk_tree_path_get_depth (path); gtk_tree_path_free (path); drag_dest_path = NULL; if (tree_view->drag_dest_row) drag_dest_path = gtk_tree_row_reference_get_path (tree_view->drag_dest_row); if (drag_dest_path) _gtk_tree_view_find_node (tree_view, drag_dest_path, &drag_highlight_tree, &drag_highlight); draw_vgrid_lines = tree_view->grid_lines == GTK_TREE_VIEW_GRID_LINES_VERTICAL || tree_view->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH; draw_hgrid_lines = tree_view->grid_lines == GTK_TREE_VIEW_GRID_LINES_HORIZONTAL || tree_view->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH; expander_size = gtk_tree_view_get_expander_size (tree_view); n_visible_columns = 0; for (list = tree_view->columns; list; list = list->next) { if (!gtk_tree_view_column_get_visible (GTK_TREE_VIEW_COLUMN (list->data))) continue; n_visible_columns ++; } /* Find the last column */ for (last_column = g_list_last (tree_view->columns); last_column && !(gtk_tree_view_column_get_visible (GTK_TREE_VIEW_COLUMN (last_column->data))); last_column = last_column->prev) ; /* and the first */ for (first_column = g_list_first (tree_view->columns); first_column && !(gtk_tree_view_column_get_visible (GTK_TREE_VIEW_COLUMN (first_column->data))); first_column = first_column->next) ; /* Actually process the expose event. To do this, we want to * start at the first node of the event, and walk the tree in * order, drawing each successive node. */ parity = !(gtk_tree_rbtree_node_get_index (tree, node) % 2); do { gboolean is_separator = FALSE; gint n_col = 0; parity = !parity; is_separator = row_is_separator (tree_view, &iter, NULL); max_height = gtk_tree_view_get_row_height (tree_view, node); cell_offset = x_scroll_offset; background_area.y = y_offset + clip.y; background_area.height = max_height; flags = 0; if (GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_PRELIT)) flags |= GTK_CELL_RENDERER_PRELIT; if (GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_SELECTED)) flags |= GTK_CELL_RENDERER_SELECTED; /* we *need* to set cell data on all cells before the call * to _has_can_focus_cell, else _has_can_focus_cell() does not * return a correct value. */ for (list = (rtl ? g_list_last (tree_view->columns) : g_list_first (tree_view->columns)); list; list = (rtl ? list->prev : list->next)) { GtkTreeViewColumn *column = list->data; gtk_tree_view_column_cell_set_cell_data (column, tree_view->model, &iter, GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_PARENT), node->children?TRUE:FALSE); } has_can_focus_cell = gtk_tree_view_has_can_focus_cell (tree_view); for (list = (rtl ? g_list_last (tree_view->columns) : g_list_first (tree_view->columns)); list; list = (rtl ? list->prev : list->next)) { GtkTreeViewColumn *column = list->data; GtkStateFlags state = 0; gint width; gboolean draw_focus; if (!gtk_tree_view_column_get_visible (column)) continue; n_col++; width = gtk_tree_view_column_get_width (column); if (cell_offset > clip.x + clip.width || cell_offset + width < clip.x) { cell_offset += width; continue; } if (gtk_tree_view_column_get_sort_indicator (column)) flags |= GTK_CELL_RENDERER_SORTED; else flags &= ~GTK_CELL_RENDERER_SORTED; if (tree_view->cursor_node == node) flags |= GTK_CELL_RENDERER_FOCUSED; else flags &= ~GTK_CELL_RENDERER_FOCUSED; if (GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_PARENT)) flags |= GTK_CELL_RENDERER_EXPANDABLE; else flags &= ~GTK_CELL_RENDERER_EXPANDABLE; if (node->children) flags |= GTK_CELL_RENDERER_EXPANDED; else flags &= ~GTK_CELL_RENDERER_EXPANDED; background_area.x = cell_offset; background_area.width = width; cell_area = background_area; cell_area.x += _TREE_VIEW_HORIZONTAL_SEPARATOR /2; cell_area.width -= _TREE_VIEW_HORIZONTAL_SEPARATOR; if (draw_vgrid_lines) { if (list == first_column) { cell_area.width -= _TREE_VIEW_GRID_LINE_WIDTH / 2; } else if (list == last_column) { cell_area.x += _TREE_VIEW_GRID_LINE_WIDTH / 2; cell_area.width -= _TREE_VIEW_GRID_LINE_WIDTH / 2; } else { cell_area.x += _TREE_VIEW_GRID_LINE_WIDTH / 2; cell_area.width -= _TREE_VIEW_GRID_LINE_WIDTH; } } if (draw_hgrid_lines) { cell_area.y += _TREE_VIEW_GRID_LINE_WIDTH / 2; cell_area.height -= _TREE_VIEW_GRID_LINE_WIDTH; } if (!gdk_rectangle_intersect (&clip, &background_area, NULL)) { cell_offset += gtk_tree_view_column_get_width (column); continue; } background_area.x -= x_scroll_offset; cell_area.x -= x_scroll_offset; gtk_tree_view_column_cell_set_cell_data (column, tree_view->model, &iter, GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_PARENT), node->children?TRUE:FALSE); gtk_style_context_save (context); state = gtk_cell_renderer_get_state (NULL, widget, flags); gtk_style_context_set_state (context, state); gtk_style_context_add_class (context, GTK_STYLE_CLASS_CELL); if (node == tree_view->cursor_node && has_can_focus_cell && ((column == tree_view->focus_column && tree_view->draw_keyfocus && gtk_widget_has_visible_focus (widget)) || (column == tree_view->edited_column))) draw_focus = TRUE; else draw_focus = FALSE; /* Draw background */ gtk_snapshot_render_background (snapshot, context, background_area.x, background_area.y, background_area.width, background_area.height); /* Draw frame */ gtk_snapshot_render_frame (snapshot, context, background_area.x, background_area.y, background_area.width, background_area.height); if (gtk_tree_view_is_expander_column (tree_view, column)) { if (!rtl) cell_area.x += (depth - 1) * tree_view->level_indentation; cell_area.width -= (depth - 1) * tree_view->level_indentation; if (gtk_tree_view_draw_expanders (tree_view)) { if (!rtl) cell_area.x += depth * expander_size; cell_area.width -= depth * expander_size; } if (is_separator) { GdkRGBA color; gtk_style_context_save (context); gtk_style_context_add_class (context, GTK_STYLE_CLASS_SEPARATOR); gtk_style_context_get_color (context, &color); gtk_snapshot_append_color (snapshot, &color, &GRAPHENE_RECT_INIT( cell_area.x, cell_area.y + cell_area.height / 2, cell_area.x + cell_area.width, 1 )); gtk_style_context_restore (context); } else { gtk_tree_view_column_cell_snapshot (column, snapshot, &background_area, &cell_area, flags, draw_focus); } if (gtk_tree_view_draw_expanders (tree_view) && (node->flags & GTK_TREE_RBNODE_IS_PARENT) == GTK_TREE_RBNODE_IS_PARENT) { gtk_tree_view_snapshot_arrow (GTK_TREE_VIEW (widget), snapshot, tree, node); } } else { if (is_separator) { GdkRGBA color; gtk_style_context_save (context); gtk_style_context_add_class (context, GTK_STYLE_CLASS_SEPARATOR); gtk_style_context_get_color (context, &color); gtk_snapshot_append_color (snapshot, &color, &GRAPHENE_RECT_INIT( cell_area.x, cell_area.y + cell_area.height / 2, cell_area.x + cell_area.width, 1 )); gtk_style_context_restore (context); } else gtk_tree_view_column_cell_snapshot (column, snapshot, &background_area, &cell_area, flags, draw_focus); } if (draw_hgrid_lines) { if (background_area.y >= clip.y) gtk_tree_view_snapshot_grid_line (tree_view, snapshot, GTK_ORIENTATION_HORIZONTAL, &(graphene_point_t) { background_area.x, background_area.y }, background_area.width); if (background_area.y + max_height < clip.y + clip.height) gtk_tree_view_snapshot_grid_line (tree_view, snapshot, GTK_ORIENTATION_HORIZONTAL, &(graphene_point_t) { background_area.x, background_area.y + max_height }, background_area.width); } if (gtk_tree_view_is_expander_column (tree_view, column) && tree_view->tree_lines_enabled) { gint x = background_area.x; gint mult = rtl ? -1 : 1; gint y0 = background_area.y; gint y1 = background_area.y + background_area.height/2; gint y2 = background_area.y + background_area.height; if (rtl) x += background_area.width - 1; if ((node->flags & GTK_TREE_RBNODE_IS_PARENT) == GTK_TREE_RBNODE_IS_PARENT && depth > 1) { gtk_tree_view_snapshot_tree_line (tree_view, snapshot, GTK_ORIENTATION_HORIZONTAL, &(graphene_point_t) { x + expander_size * (depth - 1.5) * mult, y1 }, mult * expander_size * 0.4); } else if (depth > 1) { gtk_tree_view_snapshot_tree_line (tree_view, snapshot, GTK_ORIENTATION_HORIZONTAL, &(graphene_point_t) { x + expander_size * (depth - 1.5) * mult, y1 }, mult * expander_size); } if (depth > 1) { int i; GtkTreeRBNode *tmp_node; GtkTreeRBTree *tmp_tree; if (!gtk_tree_rbtree_next (tree, node)) gtk_tree_view_snapshot_tree_line (tree_view, snapshot, GTK_ORIENTATION_VERTICAL, &(graphene_point_t) { x + expander_size * (depth - 1.5) * mult, y0 }, y1 - y0); else gtk_tree_view_snapshot_tree_line (tree_view, snapshot, GTK_ORIENTATION_VERTICAL, &(graphene_point_t) { x + expander_size * (depth - 1.5) * mult, y0 }, y2 - y0); tmp_node = tree->parent_node; tmp_tree = tree->parent_tree; for (i = depth - 2; i > 0; i--) { if (gtk_tree_rbtree_next (tmp_tree, tmp_node)) gtk_tree_view_snapshot_tree_line (tree_view, snapshot, GTK_ORIENTATION_VERTICAL, &(graphene_point_t) { x + expander_size * (i - 0.5) * mult, y0 }, y2 - y0); tmp_node = tmp_tree->parent_node; tmp_tree = tmp_tree->parent_tree; } } } gtk_style_context_restore (context); cell_offset += gtk_tree_view_column_get_width (column); } if (node == drag_highlight) { GtkTreeRBTree *drag_tree = NULL; GtkTreeRBNode *drag_node = NULL; _gtk_tree_view_find_node (tree_view, drag_dest_path, &drag_tree, &drag_node); if (drag_tree != NULL) { TreeViewDragInfo *di; di = get_info (tree_view); /* Draw indicator for the drop */ switch (tree_view->drag_dest_pos) { case GTK_TREE_VIEW_DROP_BEFORE: gtk_css_node_set_classes (di->cssnode, (const char *[]){"before", NULL}); break; case GTK_TREE_VIEW_DROP_AFTER: gtk_css_node_set_classes (di->cssnode, (const char *[]){"after", NULL}); break; case GTK_TREE_VIEW_DROP_INTO_OR_BEFORE: case GTK_TREE_VIEW_DROP_INTO_OR_AFTER: gtk_css_node_set_classes (di->cssnode, (const char *[]){"into", NULL}); break; default: break; } gtk_style_context_save_to_node (context, di->cssnode); gtk_style_context_set_state (context, gtk_style_context_get_state (context) | GTK_STATE_FLAG_DROP_ACTIVE); gtk_snapshot_render_frame (snapshot, context, 0, gtk_tree_view_get_row_y_offset (tree_view, drag_tree, drag_node), bin_window_width, gtk_tree_view_get_row_height (tree_view, drag_node)); gtk_style_context_restore (context); } } /* draw the big row-spanning focus rectangle, if needed */ if (!has_can_focus_cell && node == tree_view->cursor_node && tree_view->draw_keyfocus && gtk_widget_has_visible_focus (widget)) { gint tmp_y, tmp_height; GtkStateFlags focus_rect_state = 0; gtk_style_context_save (context); focus_rect_state = gtk_cell_renderer_get_state (NULL, widget, flags); gtk_style_context_set_state (context, focus_rect_state); if (draw_hgrid_lines) { tmp_y = gtk_tree_view_get_row_y_offset (tree_view, tree, node) + _TREE_VIEW_GRID_LINE_WIDTH / 2; tmp_height = gtk_tree_view_get_row_height (tree_view, node) - _TREE_VIEW_GRID_LINE_WIDTH; } else { tmp_y = gtk_tree_view_get_row_y_offset (tree_view, tree, node); tmp_height = gtk_tree_view_get_row_height (tree_view, node); } gtk_snapshot_render_focus (snapshot, context, 0, tmp_y, bin_window_width, tmp_height); gtk_style_context_restore (context); } y_offset += max_height; if (node->children) { GtkTreeIter parent = iter; gboolean has_child; tree = node->children; node = gtk_tree_rbtree_first (tree); has_child = gtk_tree_model_iter_children (tree_view->model, &iter, &parent); depth++; /* Sanity Check! */ TREE_VIEW_INTERNAL_ASSERT_VOID (has_child); } else { gboolean done = FALSE; do { node = gtk_tree_rbtree_next (tree, node); if (node != NULL) { gboolean has_next = gtk_tree_model_iter_next (tree_view->model, &iter); done = TRUE; /* Sanity Check! */ TREE_VIEW_INTERNAL_ASSERT_VOID (has_next); } else { GtkTreeIter parent_iter = iter; gboolean has_parent; node = tree->parent_node; tree = tree->parent_tree; if (tree == NULL) /* we should go to done to free some memory */ goto done; has_parent = gtk_tree_model_iter_parent (tree_view->model, &iter, &parent_iter); depth--; /* Sanity check */ TREE_VIEW_INTERNAL_ASSERT_VOID (has_parent); } } while (!done); } } while (y_offset < clip.height); done: gtk_tree_view_snapshot_grid_lines (tree_view, snapshot); if (tree_view->rubber_band_status == RUBBER_BAND_ACTIVE) gtk_tree_view_snapshot_rubber_band (tree_view, snapshot); if (drag_dest_path) gtk_tree_path_free (drag_dest_path); } static void gtk_tree_view_snapshot (GtkWidget *widget, GtkSnapshot *snapshot) { GtkTreeView *tree_view = GTK_TREE_VIEW (widget); GtkWidget *button; GtkStyleContext *context; GList *list; gint width, height; context = gtk_widget_get_style_context (widget); width = gtk_widget_get_width (widget); height = gtk_widget_get_height (widget); gtk_snapshot_push_clip (snapshot, &GRAPHENE_RECT_INIT( 0, gtk_tree_view_get_effective_header_height (tree_view), width, height - gtk_tree_view_get_effective_header_height (tree_view) )); gtk_snapshot_save (snapshot); gtk_snapshot_translate (snapshot, &GRAPHENE_POINT_INIT ( - (gint) gtk_adjustment_get_value (tree_view->hadjustment), gtk_tree_view_get_effective_header_height (tree_view))); gtk_tree_view_bin_snapshot (widget, snapshot); gtk_snapshot_restore (snapshot); /* We can't just chain up to Container::draw as it will try to send the * event to the headers, so we handle propagating it to our children * (eg. widgets being edited) ourselves. */ for (list = tree_view->children; list; list = list->next) { GtkTreeViewChild *child = list->data; gtk_widget_snapshot_child (widget, child->widget, snapshot); } gtk_snapshot_pop (snapshot); gtk_snapshot_push_clip (snapshot, &GRAPHENE_RECT_INIT( 0, 0, width, gtk_tree_view_get_effective_header_height (tree_view) )); gtk_style_context_save (context); gtk_style_context_remove_class (context, GTK_STYLE_CLASS_VIEW); for (list = tree_view->columns; list != NULL; list = list->next) { GtkTreeViewColumn *column = list->data; if (column == tree_view->drag_column) continue; if (gtk_tree_view_column_get_visible (column)) { button = gtk_tree_view_column_get_button (column); gtk_widget_snapshot_child (widget, button, snapshot); } } if (tree_view->drag_column) { button = gtk_tree_view_column_get_button (tree_view->drag_column); gtk_widget_snapshot_child (widget, button, snapshot); } gtk_style_context_restore (context); gtk_snapshot_pop (snapshot); } enum { DROP_HOME, DROP_RIGHT, DROP_LEFT, DROP_END }; /* returns 0x1 when no column has been found -- yes it's hackish */ static GtkTreeViewColumn * gtk_tree_view_get_drop_column (GtkTreeView *tree_view, GtkTreeViewColumn *column, gint drop_position) { GtkTreeViewColumn *left_column = NULL; GtkTreeViewColumn *cur_column = NULL; GList *tmp_list; if (!gtk_tree_view_column_get_reorderable (column)) return (GtkTreeViewColumn *)0x1; switch (drop_position) { case DROP_HOME: /* find first column where we can drop */ tmp_list = tree_view->columns; if (column == GTK_TREE_VIEW_COLUMN (tmp_list->data)) return (GtkTreeViewColumn *)0x1; while (tmp_list) { g_assert (tmp_list); cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data); tmp_list = tmp_list->next; if (left_column && gtk_tree_view_column_get_visible (left_column) == FALSE) continue; if (!tree_view->column_drop_func) return left_column; if (!tree_view->column_drop_func (tree_view, column, left_column, cur_column, tree_view->column_drop_func_data)) { left_column = cur_column; continue; } return left_column; } if (!tree_view->column_drop_func) return left_column; if (tree_view->column_drop_func (tree_view, column, left_column, NULL, tree_view->column_drop_func_data)) return left_column; else return (GtkTreeViewColumn *)0x1; break; case DROP_RIGHT: /* find first column after column where we can drop */ tmp_list = tree_view->columns; for (; tmp_list; tmp_list = tmp_list->next) if (GTK_TREE_VIEW_COLUMN (tmp_list->data) == column) break; if (!tmp_list || !tmp_list->next) return (GtkTreeViewColumn *)0x1; tmp_list = tmp_list->next; left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data); tmp_list = tmp_list->next; while (tmp_list) { g_assert (tmp_list); cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data); tmp_list = tmp_list->next; if (left_column && gtk_tree_view_column_get_visible (left_column) == FALSE) { left_column = cur_column; if (tmp_list) tmp_list = tmp_list->next; continue; } if (!tree_view->column_drop_func) return left_column; if (!tree_view->column_drop_func (tree_view, column, left_column, cur_column, tree_view->column_drop_func_data)) { left_column = cur_column; continue; } return left_column; } if (!tree_view->column_drop_func) return left_column; if (tree_view->column_drop_func (tree_view, column, left_column, NULL, tree_view->column_drop_func_data)) return left_column; else return (GtkTreeViewColumn *)0x1; break; case DROP_LEFT: /* find first column before column where we can drop */ tmp_list = tree_view->columns; for (; tmp_list; tmp_list = tmp_list->next) if (GTK_TREE_VIEW_COLUMN (tmp_list->data) == column) break; if (!tmp_list || !tmp_list->prev) return (GtkTreeViewColumn *)0x1; tmp_list = tmp_list->prev; cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data); tmp_list = tmp_list->prev; while (tmp_list) { g_assert (tmp_list); left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data); if (left_column && gtk_tree_view_column_get_visible (left_column) == FALSE) { /*if (!tmp_list->prev) return (GtkTreeViewColumn *)0x1; */ /* cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->prev->data); tmp_list = tmp_list->prev->prev; continue;*/ cur_column = left_column; if (tmp_list) tmp_list = tmp_list->prev; continue; } if (!tree_view->column_drop_func) return left_column; if (tree_view->column_drop_func (tree_view, column, left_column, cur_column, tree_view->column_drop_func_data)) return left_column; cur_column = left_column; tmp_list = tmp_list->prev; } if (!tree_view->column_drop_func) return NULL; if (tree_view->column_drop_func (tree_view, column, NULL, cur_column, tree_view->column_drop_func_data)) return NULL; else return (GtkTreeViewColumn *)0x1; break; case DROP_END: /* same as DROP_HOME case, but doing it backwards */ tmp_list = g_list_last (tree_view->columns); cur_column = NULL; if (column == GTK_TREE_VIEW_COLUMN (tmp_list->data)) return (GtkTreeViewColumn *)0x1; while (tmp_list) { g_assert (tmp_list); left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data); if (left_column && gtk_tree_view_column_get_visible (left_column) == FALSE) { cur_column = left_column; tmp_list = tmp_list->prev; } if (!tree_view->column_drop_func) return left_column; if (tree_view->column_drop_func (tree_view, column, left_column, cur_column, tree_view->column_drop_func_data)) return left_column; cur_column = left_column; tmp_list = tmp_list->prev; } if (!tree_view->column_drop_func) return NULL; if (tree_view->column_drop_func (tree_view, column, NULL, cur_column, tree_view->column_drop_func_data)) return NULL; else return (GtkTreeViewColumn *)0x1; break; default: return (GtkTreeViewColumn *)0x1; break; } } static gboolean gtk_tree_view_search_key_cancels_search (guint keyval) { return keyval == GDK_KEY_Escape || keyval == GDK_KEY_Tab || keyval == GDK_KEY_KP_Tab || keyval == GDK_KEY_ISO_Left_Tab; } static gboolean gtk_tree_view_key_controller_key_pressed (GtkEventControllerKey *key, guint keyval, guint keycode, GdkModifierType state, GtkTreeView *tree_view) { GtkWidget *widget = GTK_WIDGET (tree_view); GtkWidget *button; GdkEvent *event; if (tree_view->rubber_band_status) { if (keyval == GDK_KEY_Escape) gtk_tree_view_stop_rubber_band (tree_view); return TRUE; } if (tree_view->in_column_drag) { if (keyval == GDK_KEY_Escape) gtk_gesture_set_state (GTK_GESTURE (tree_view->column_drag_gesture), GTK_EVENT_SEQUENCE_DENIED); return TRUE; } if (tree_view->headers_visible) { GList *focus_column; gboolean rtl; rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL); for (focus_column = tree_view->columns; focus_column; focus_column = focus_column->next) { GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data); button = gtk_tree_view_column_get_button (column); if (gtk_widget_has_focus (button)) break; } if (focus_column && (state & GDK_SHIFT_MASK) && (state & GDK_MOD1_MASK) && (keyval == GDK_KEY_Left || keyval == GDK_KEY_KP_Left || keyval == GDK_KEY_Right || keyval == GDK_KEY_KP_Right)) { GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data); gint column_width; if (!gtk_tree_view_column_get_resizable (column)) { gtk_widget_error_bell (widget); return TRUE; } column_width = gtk_tree_view_column_get_width (column); if (keyval == (rtl ? GDK_KEY_Right : GDK_KEY_Left) || keyval == (rtl ? GDK_KEY_KP_Right : GDK_KEY_KP_Left)) { column_width = MAX (column_width - 2, 0); } else if (keyval == (rtl ? GDK_KEY_Left : GDK_KEY_Right) || keyval == (rtl ? GDK_KEY_KP_Left : GDK_KEY_KP_Right)) { column_width = column_width + 2; } gtk_tree_view_column_set_fixed_width (column, column_width); gtk_tree_view_column_set_expand (column, FALSE); return TRUE; } if (focus_column && (state & GDK_MOD1_MASK) && (keyval == GDK_KEY_Left || keyval == GDK_KEY_KP_Left || keyval == GDK_KEY_Right || keyval == GDK_KEY_KP_Right || keyval == GDK_KEY_Home || keyval == GDK_KEY_KP_Home || keyval == GDK_KEY_End || keyval == GDK_KEY_KP_End)) { GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data); if (keyval == (rtl ? GDK_KEY_Right : GDK_KEY_Left) || keyval == (rtl ? GDK_KEY_KP_Right : GDK_KEY_KP_Left)) { GtkTreeViewColumn *col; col = gtk_tree_view_get_drop_column (tree_view, column, DROP_LEFT); if (col != (GtkTreeViewColumn *)0x1) gtk_tree_view_move_column_after (tree_view, column, col); else gtk_widget_error_bell (widget); } else if (keyval == (rtl ? GDK_KEY_Left : GDK_KEY_Right) || keyval == (rtl ? GDK_KEY_KP_Left : GDK_KEY_KP_Right)) { GtkTreeViewColumn *col; col = gtk_tree_view_get_drop_column (tree_view, column, DROP_RIGHT); if (col != (GtkTreeViewColumn *)0x1) gtk_tree_view_move_column_after (tree_view, column, col); else gtk_widget_error_bell (widget); } else if (keyval == GDK_KEY_Home || keyval == GDK_KEY_KP_Home) { GtkTreeViewColumn *col; col = gtk_tree_view_get_drop_column (tree_view, column, DROP_HOME); if (col != (GtkTreeViewColumn *)0x1) gtk_tree_view_move_column_after (tree_view, column, col); else gtk_widget_error_bell (widget); } else if (keyval == GDK_KEY_End || keyval == GDK_KEY_KP_End) { GtkTreeViewColumn *col; col = gtk_tree_view_get_drop_column (tree_view, column, DROP_END); if (col != (GtkTreeViewColumn *)0x1) gtk_tree_view_move_column_after (tree_view, column, col); else gtk_widget_error_bell (widget); } return TRUE; } } /* Handle the keybindings. */ event = gtk_get_current_event (); if (gtk_bindings_activate_event (G_OBJECT (widget), (GdkEventKey *)event)) { g_object_unref (event); return TRUE; } g_object_unref (event); if (tree_view->search_entry_avoid_unhandled_binding) { tree_view->search_entry_avoid_unhandled_binding = FALSE; return FALSE; } /* Initially, before the search window is visible, we pass the event to the * IM context of the search entry box. If it triggers a commit or a preedit, * we then show the search window without loosing tree view focus. * If the seach window is already visible, we forward the events to it, * keeping the focus on the tree view. */ if (gtk_widget_has_focus (GTK_WIDGET (tree_view)) && tree_view->enable_search && !tree_view->search_custom_entry_set && !gtk_tree_view_search_key_cancels_search (keyval)) { gtk_tree_view_ensure_interactive_directory (tree_view); if (!gtk_widget_is_visible (tree_view->search_popover)) { tree_view->imcontext_changed = FALSE; gtk_event_controller_key_forward (key, tree_view->search_entry); if (tree_view->imcontext_changed) { GdkDevice *device; device = gtk_get_current_event_device (); return gtk_tree_view_real_start_interactive_search (tree_view, device, FALSE); } } } return FALSE; } static void gtk_tree_view_key_controller_key_released (GtkEventControllerKey *key, guint keyval, guint keycode, GdkModifierType state, GtkTreeView *tree_view) { GdkEvent *event; if (tree_view->rubber_band_status) return; /* Handle the keybindings. */ event = gtk_get_current_event (); gtk_bindings_activate_event (G_OBJECT (tree_view), (GdkEventKey *)event); g_object_unref (event); } static void gtk_tree_view_motion_controller_enter (GtkEventControllerMotion *controller, double x, double y, GdkCrossingMode mode, GdkNotifyType detail, GtkTreeView *tree_view) { GtkTreeRBTree *tree; GtkTreeRBNode *node; gint new_y; if (tree_view->tree == NULL) return; /* find the node internally */ new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, y); if (new_y < 0) new_y = 0; gtk_tree_rbtree_find_offset (tree_view->tree, new_y, &tree, &node); tree_view->event_last_x = x; tree_view->event_last_y = y; if ((tree_view->button_pressed_node == NULL) || (tree_view->button_pressed_node == node)) prelight_or_select (tree_view, tree, node, x, y); } static void gtk_tree_view_motion_controller_leave (GtkEventControllerMotion *controller, GdkCrossingMode mode, GdkNotifyType detail, GtkTreeView *tree_view) { if (tree_view->prelight_node) gtk_widget_queue_draw (GTK_WIDGET (tree_view)); tree_view->event_last_x = -10000; tree_view->event_last_y = -10000; if (!gtk_event_controller_motion_contains_pointer (GTK_EVENT_CONTROLLER_MOTION (controller))) prelight_or_select (tree_view, NULL, NULL, -1000, -1000); /* not possibly over an arrow */ } static void gtk_tree_view_key_controller_focus_out (GtkEventControllerKey *key, GdkCrossingMode mode, GdkNotifyType detail, GtkTreeView *tree_view) { gboolean is_focus, contains_focus; gtk_widget_queue_draw (GTK_WIDGET (tree_view)); g_object_get (key, "is-focus", &is_focus, "contains-focus", &contains_focus, NULL); if (tree_view->search_popover && !gtk_event_controller_key_contains_focus (key)) gtk_tree_view_search_popover_hide (tree_view->search_popover, tree_view, gtk_get_current_event_device ()); } /* Incremental Reflow */ static gboolean node_is_visible (GtkTreeView *tree_view, GtkTreeRBTree *tree, GtkTreeRBNode *node) { int y; int height; y = gtk_tree_rbtree_node_find_offset (tree, node); height = gtk_tree_view_get_row_height (tree_view, node); if (y >= gtk_adjustment_get_value (tree_view->vadjustment) && y + height <= (gtk_adjustment_get_value (tree_view->vadjustment) + gtk_adjustment_get_page_size (tree_view->vadjustment))) return TRUE; return FALSE; } static gint get_separator_height (GtkTreeView *tree_view) { GtkStyleContext *context; GtkCssStyle *style; gdouble d; gint min_size; context = gtk_widget_get_style_context (GTK_WIDGET (tree_view)); gtk_style_context_save (context); gtk_style_context_add_class (context, GTK_STYLE_CLASS_SEPARATOR); style = gtk_style_context_lookup_style (context); d = _gtk_css_number_value_get (style->size->min_height, 100); if (d < 1) min_size = ceil (d); else min_size = floor (d); gtk_style_context_restore (context); return min_size; } /* Returns TRUE if it updated the size */ static gboolean validate_row (GtkTreeView *tree_view, GtkTreeRBTree *tree, GtkTreeRBNode *node, GtkTreeIter *iter, GtkTreePath *path) { GtkTreeViewColumn *column; GtkStyleContext *context; GList *list, *first_column, *last_column; gint height = 0; gint depth = gtk_tree_path_get_depth (path); gboolean retval = FALSE; gboolean is_separator = FALSE; gboolean draw_vgrid_lines, draw_hgrid_lines; gint expander_size; int separator_height; /* double check the row needs validating */ if (! GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_INVALID) && ! GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_COLUMN_INVALID)) return FALSE; is_separator = row_is_separator (tree_view, iter, NULL); draw_vgrid_lines = tree_view->grid_lines == GTK_TREE_VIEW_GRID_LINES_VERTICAL || tree_view->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH; draw_hgrid_lines = tree_view->grid_lines == GTK_TREE_VIEW_GRID_LINES_HORIZONTAL || tree_view->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH; expander_size = gtk_tree_view_get_expander_size (tree_view); for (last_column = g_list_last (tree_view->columns); last_column && !(gtk_tree_view_column_get_visible (GTK_TREE_VIEW_COLUMN (last_column->data))); last_column = last_column->prev) ; for (first_column = g_list_first (tree_view->columns); first_column && !(gtk_tree_view_column_get_visible (GTK_TREE_VIEW_COLUMN (first_column->data))); first_column = first_column->next) ; separator_height = get_separator_height (tree_view); context = gtk_widget_get_style_context (GTK_WIDGET (tree_view)); gtk_style_context_save (context); gtk_style_context_add_class (context, GTK_STYLE_CLASS_CELL); for (list = tree_view->columns; list; list = list->next) { gint padding = 0; gint original_width; gint new_width; gint row_height; column = list->data; if (!gtk_tree_view_column_get_visible (column)) continue; if (GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_COLUMN_INVALID) && !_gtk_tree_view_column_cell_get_dirty (column)) continue; original_width = _gtk_tree_view_column_get_requested_width (column); gtk_tree_view_column_cell_set_cell_data (column, tree_view->model, iter, GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_PARENT), node->children?TRUE:FALSE); gtk_tree_view_column_cell_get_size (column, NULL, NULL, NULL, &row_height); if (is_separator) { height = separator_height; /* gtk_tree_view_get_row_height() assumes separator nodes are > 0 */ height = MAX (height, 1); } else { height = MAX (height, row_height); height = MAX (height, expander_size); } if (gtk_tree_view_is_expander_column (tree_view, column)) { padding += _TREE_VIEW_HORIZONTAL_SEPARATOR + (depth - 1) * tree_view->level_indentation; if (gtk_tree_view_draw_expanders (tree_view)) padding += depth * expander_size; } else padding += _TREE_VIEW_HORIZONTAL_SEPARATOR; if (draw_vgrid_lines) { if (list->data == first_column || list->data == last_column) padding += _TREE_VIEW_GRID_LINE_WIDTH / 2.0; else padding += _TREE_VIEW_GRID_LINE_WIDTH; } /* Update the padding for the column */ _gtk_tree_view_column_push_padding (column, padding); new_width = _gtk_tree_view_column_get_requested_width (column); if (new_width > original_width) retval = TRUE; } gtk_style_context_restore (context); if (draw_hgrid_lines) height += _TREE_VIEW_GRID_LINE_WIDTH; if (height != GTK_TREE_RBNODE_GET_HEIGHT (node)) { retval = TRUE; gtk_tree_rbtree_node_set_height (tree, node, height); } gtk_tree_rbtree_node_mark_valid (tree, node); return retval; } static void validate_visible_area (GtkTreeView *tree_view) { GtkTreePath *path = NULL; GtkTreePath *above_path = NULL; GtkTreeIter iter; GtkTreeRBTree *tree = NULL; GtkTreeRBNode *node = NULL; gboolean need_redraw = FALSE; gboolean size_changed = FALSE; gint total_height; gint area_above = 0; gint area_below = 0; if (tree_view->tree == NULL) return; if (! GTK_TREE_RBNODE_FLAG_SET (tree_view->tree->root, GTK_TREE_RBNODE_DESCENDANTS_INVALID) && tree_view->scroll_to_path == NULL) return; total_height = gtk_widget_get_height (GTK_WIDGET (tree_view)) - gtk_tree_view_get_effective_header_height (tree_view); if (total_height == 0) return; /* First, we check to see if we need to scroll anywhere */ if (tree_view->scroll_to_path) { path = gtk_tree_row_reference_get_path (tree_view->scroll_to_path); if (path && !_gtk_tree_view_find_node (tree_view, path, &tree, &node)) { /* we are going to scroll, and will update dy */ gtk_tree_model_get_iter (tree_view->model, &iter, path); if (GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_INVALID) || GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_COLUMN_INVALID)) { gtk_widget_queue_draw (GTK_WIDGET (tree_view)); if (validate_row (tree_view, tree, node, &iter, path)) size_changed = TRUE; } if (tree_view->scroll_to_use_align) { gint height = gtk_tree_view_get_row_height (tree_view, node); area_above = (total_height - height) * tree_view->scroll_to_row_align; area_below = total_height - area_above - height; area_above = MAX (area_above, 0); area_below = MAX (area_below, 0); } else { /* two cases: * 1) row not visible * 2) row visible */ gint dy; gint height = gtk_tree_view_get_row_height (tree_view, node); dy = gtk_tree_rbtree_node_find_offset (tree, node); if (dy >= gtk_adjustment_get_value (tree_view->vadjustment) && dy + height <= (gtk_adjustment_get_value (tree_view->vadjustment) + gtk_adjustment_get_page_size (tree_view->vadjustment))) { /* row visible: keep the row at the same position */ area_above = dy - gtk_adjustment_get_value (tree_view->vadjustment); area_below = (gtk_adjustment_get_value (tree_view->vadjustment) + gtk_adjustment_get_page_size (tree_view->vadjustment)) - dy - height; } else { /* row not visible */ if (dy >= 0 && dy + height <= gtk_adjustment_get_page_size (tree_view->vadjustment)) { /* row at the beginning -- fixed */ area_above = dy; area_below = gtk_adjustment_get_page_size (tree_view->vadjustment) - area_above - height; } else if (dy >= (gtk_adjustment_get_upper (tree_view->vadjustment) - gtk_adjustment_get_page_size (tree_view->vadjustment))) { /* row at the end -- fixed */ area_above = dy - (gtk_adjustment_get_upper (tree_view->vadjustment) - gtk_adjustment_get_page_size (tree_view->vadjustment)); area_below = gtk_adjustment_get_page_size (tree_view->vadjustment) - area_above - height; if (area_below < 0) { area_above = gtk_adjustment_get_page_size (tree_view->vadjustment) - height; area_below = 0; } } else { /* row somewhere in the middle, bring it to the top * of the view */ area_above = 0; area_below = total_height - height; } } } } else /* the scroll to isn't valid; ignore it. */ { if (tree_view->scroll_to_path && !path) { gtk_tree_row_reference_free (tree_view->scroll_to_path); tree_view->scroll_to_path = NULL; } if (path) gtk_tree_path_free (path); path = NULL; } } /* We didn't have a scroll_to set, so we just handle things normally */ if (path == NULL) { gint offset; offset = gtk_tree_rbtree_find_offset (tree_view->tree, TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, 0), &tree, &node); if (node == NULL) { /* In this case, nothing has been validated */ path = gtk_tree_path_new_first (); _gtk_tree_view_find_node (tree_view, path, &tree, &node); } else { path = _gtk_tree_path_new_from_rbtree (tree, node); total_height += offset; } gtk_tree_model_get_iter (tree_view->model, &iter, path); if (GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_INVALID) || GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_COLUMN_INVALID)) { gtk_widget_queue_draw (GTK_WIDGET (tree_view)); if (validate_row (tree_view, tree, node, &iter, path)) size_changed = TRUE; } area_above = 0; area_below = total_height - gtk_tree_view_get_row_height (tree_view, node); } above_path = gtk_tree_path_copy (path); /* if we do not validate any row above the new top_row, we will make sure * that the row immediately above top_row has been validated. (if we do not * do this, gtk_tree_rbtree_find_offset will find the row above top_row, because * when invalidated that row's height will be zero. and this will mess up * scrolling). */ if (area_above == 0) { GtkTreeRBTree *tmptree; GtkTreeRBNode *tmpnode; _gtk_tree_view_find_node (tree_view, above_path, &tmptree, &tmpnode); gtk_tree_rbtree_prev_full (tmptree, tmpnode, &tmptree, &tmpnode); if (tmpnode) { GtkTreePath *tmppath; GtkTreeIter tmpiter; tmppath = _gtk_tree_path_new_from_rbtree (tmptree, tmpnode); gtk_tree_model_get_iter (tree_view->model, &tmpiter, tmppath); if (GTK_TREE_RBNODE_FLAG_SET (tmpnode, GTK_TREE_RBNODE_INVALID) || GTK_TREE_RBNODE_FLAG_SET (tmpnode, GTK_TREE_RBNODE_COLUMN_INVALID)) { gtk_widget_queue_draw (GTK_WIDGET (tree_view)); if (validate_row (tree_view, tmptree, tmpnode, &tmpiter, tmppath)) size_changed = TRUE; } gtk_tree_path_free (tmppath); } } /* Now, we walk forwards and backwards, measuring rows. Unfortunately, * backwards is much slower then forward, as there is no iter_prev function. * We go forwards first in case we run out of tree. Then we go backwards to * fill out the top. */ while (node && area_below > 0) { if (node->children) { GtkTreeIter parent = iter; gboolean has_child; tree = node->children; node = gtk_tree_rbtree_first (tree); has_child = gtk_tree_model_iter_children (tree_view->model, &iter, &parent); TREE_VIEW_INTERNAL_ASSERT_VOID (has_child); gtk_tree_path_down (path); } else { gboolean done = FALSE; do { node = gtk_tree_rbtree_next (tree, node); if (node != NULL) { gboolean has_next = gtk_tree_model_iter_next (tree_view->model, &iter); done = TRUE; gtk_tree_path_next (path); /* Sanity Check! */ TREE_VIEW_INTERNAL_ASSERT_VOID (has_next); } else { GtkTreeIter parent_iter = iter; gboolean has_parent; node = tree->parent_node; tree = tree->parent_tree; if (tree == NULL) break; has_parent = gtk_tree_model_iter_parent (tree_view->model, &iter, &parent_iter); gtk_tree_path_up (path); /* Sanity check */ TREE_VIEW_INTERNAL_ASSERT_VOID (has_parent); } } while (!done); } if (!node) break; if (GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_INVALID) || GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_COLUMN_INVALID)) { gtk_widget_queue_draw (GTK_WIDGET (tree_view)); if (validate_row (tree_view, tree, node, &iter, path)) size_changed = TRUE; } area_below -= gtk_tree_view_get_row_height (tree_view, node); } gtk_tree_path_free (path); /* If we ran out of tree, and have extra area_below left, we need to add it * to area_above */ if (area_below > 0) area_above += area_below; _gtk_tree_view_find_node (tree_view, above_path, &tree, &node); /* We walk backwards */ while (area_above > 0) { gtk_tree_rbtree_prev_full (tree, node, &tree, &node); /* Always find the new path in the tree. We cannot just assume * a gtk_tree_path_prev() is enough here, as there might be children * in between this node and the previous sibling node. If this * appears to be a performance hotspot in profiles, we can look into * intrigate logic for keeping path, node and iter in sync like * we do for forward walks. (Which will be hard because of the lacking * iter_prev). */ if (node == NULL) break; gtk_tree_path_free (above_path); above_path = _gtk_tree_path_new_from_rbtree (tree, node); gtk_tree_model_get_iter (tree_view->model, &iter, above_path); if (GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_INVALID) || GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_COLUMN_INVALID)) { gtk_widget_queue_draw (GTK_WIDGET (tree_view)); if (validate_row (tree_view, tree, node, &iter, above_path)) size_changed = TRUE; } area_above -= gtk_tree_view_get_row_height (tree_view, node); } /* if we scrolled to a path, we need to set the dy here, * and sync the top row accordingly */ if (tree_view->scroll_to_path) { gtk_tree_view_set_top_row (tree_view, above_path, -area_above); gtk_tree_view_top_row_to_dy (tree_view); need_redraw = TRUE; } else if (gtk_tree_view_get_height (tree_view) <= gtk_adjustment_get_page_size (tree_view->vadjustment)) { /* when we are not scrolling, we should never set dy to something * else than zero. we update top_row to be in sync with dy = 0. */ gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->vadjustment), 0); gtk_tree_view_dy_to_top_row (tree_view); } else if (gtk_adjustment_get_value (tree_view->vadjustment) + gtk_adjustment_get_page_size (tree_view->vadjustment) > gtk_tree_view_get_height (tree_view)) { gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->vadjustment), gtk_tree_view_get_height (tree_view) - gtk_adjustment_get_page_size (tree_view->vadjustment)); gtk_tree_view_dy_to_top_row (tree_view); } else gtk_tree_view_top_row_to_dy (tree_view); /* update width/height and queue a resize */ if (size_changed) { GtkRequisition requisition; /* We temporarily guess a size, under the assumption that it will be the * same when we get our next size_allocate. If we don't do this, we'll be * in an inconsistent state if we call top_row_to_dy. */ gtk_widget_get_preferred_size (GTK_WIDGET (tree_view), &requisition, NULL); gtk_adjustment_set_upper (tree_view->hadjustment, MAX (gtk_adjustment_get_upper (tree_view->hadjustment), requisition.width)); gtk_adjustment_set_upper (tree_view->vadjustment, MAX (gtk_adjustment_get_upper (tree_view->vadjustment), requisition.height)); gtk_widget_queue_resize (GTK_WIDGET (tree_view)); } if (tree_view->scroll_to_path) { gtk_tree_row_reference_free (tree_view->scroll_to_path); tree_view->scroll_to_path = NULL; } if (above_path) gtk_tree_path_free (above_path); if (tree_view->scroll_to_column) { tree_view->scroll_to_column = NULL; } if (need_redraw) gtk_widget_queue_draw (GTK_WIDGET (tree_view)); } static void initialize_fixed_height_mode (GtkTreeView *tree_view) { if (!tree_view->tree) return; if (tree_view->fixed_height < 0) { GtkTreeIter iter; GtkTreePath *path; GtkTreeRBTree *tree = NULL; GtkTreeRBNode *node = NULL; tree = tree_view->tree; node = tree->root; path = _gtk_tree_path_new_from_rbtree (tree, node); gtk_tree_model_get_iter (tree_view->model, &iter, path); validate_row (tree_view, tree, node, &iter, path); gtk_tree_path_free (path); tree_view->fixed_height = gtk_tree_view_get_row_height (tree_view, node); } gtk_tree_rbtree_set_fixed_height (tree_view->tree, tree_view->fixed_height, TRUE); } /* Our strategy for finding nodes to validate is a little convoluted. We find * the left-most uninvalidated node. We then try walking right, validating * nodes. Once we find a valid node, we repeat the previous process of finding * the first invalid node. */ static gboolean do_validate_rows (GtkTreeView *tree_view, gboolean queue_resize) { static gboolean prevent_recursion_hack = FALSE; GtkTreeRBTree *tree = NULL; GtkTreeRBNode *node = NULL; gboolean validated_area = FALSE; gint retval = TRUE; GtkTreePath *path = NULL; GtkTreeIter iter; GTimer *timer; gint i = 0; gint y = -1; gint prev_height = -1; gboolean fixed_height = TRUE; g_assert (tree_view); /* prevent infinite recursion via get_preferred_width() */ if (prevent_recursion_hack) return FALSE; if (tree_view->tree == NULL) return FALSE; if (tree_view->fixed_height_mode) { if (tree_view->fixed_height < 0) initialize_fixed_height_mode (tree_view); return FALSE; } timer = g_timer_new (); g_timer_start (timer); do { gboolean changed = FALSE; if (! GTK_TREE_RBNODE_FLAG_SET (tree_view->tree->root, GTK_TREE_RBNODE_DESCENDANTS_INVALID)) { retval = FALSE; goto done; } if (path != NULL) { node = gtk_tree_rbtree_next (tree, node); if (node != NULL) { TREE_VIEW_INTERNAL_ASSERT (gtk_tree_model_iter_next (tree_view->model, &iter), FALSE); gtk_tree_path_next (path); } else { gtk_tree_path_free (path); path = NULL; } } if (path == NULL) { tree = tree_view->tree; node = tree_view->tree->root; g_assert (GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_DESCENDANTS_INVALID)); do { if (!gtk_tree_rbtree_is_nil (node->left) && GTK_TREE_RBNODE_FLAG_SET (node->left, GTK_TREE_RBNODE_DESCENDANTS_INVALID)) { node = node->left; } else if (!gtk_tree_rbtree_is_nil (node->right) && GTK_TREE_RBNODE_FLAG_SET (node->right, GTK_TREE_RBNODE_DESCENDANTS_INVALID)) { node = node->right; } else if (GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_INVALID) || GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_COLUMN_INVALID)) { break; } else if (node->children != NULL) { tree = node->children; node = tree->root; } else /* RBTree corruption! All bad */ g_assert_not_reached (); } while (TRUE); path = _gtk_tree_path_new_from_rbtree (tree, node); gtk_tree_model_get_iter (tree_view->model, &iter, path); } changed = validate_row (tree_view, tree, node, &iter, path); validated_area = changed || validated_area; if (changed) { gint offset = gtk_tree_view_get_row_y_offset (tree_view, tree, node); if (y == -1 || y > offset) y = offset; } if (!tree_view->fixed_height_check) { gint height; height = gtk_tree_view_get_row_height (tree_view, node); if (prev_height < 0) prev_height = height; else if (prev_height != height) fixed_height = FALSE; } i++; } while (g_timer_elapsed (timer, NULL) < GTK_TREE_VIEW_TIME_MS_PER_IDLE / 1000.); if (!tree_view->fixed_height_check) { if (fixed_height) gtk_tree_rbtree_set_fixed_height (tree_view->tree, prev_height, FALSE); tree_view->fixed_height_check = 1; } done: if (validated_area) { GtkRequisition requisition; gint dummy; /* We temporarily guess a size, under the assumption that it will be the * same when we get our next size_allocate. If we don't do this, we'll be * in an inconsistent state when we call top_row_to_dy. */ /* FIXME: This is called from size_request, for some reason it is not infinitely * recursing, we cannot call gtk_widget_get_preferred_size() here because that's * not allowed (from inside ->get_preferred_width/height() implementations, one * should call the vfuncs directly). However what is desired here is the full * size including any margins and limited by any alignment (i.e. after * GtkWidget:adjust_size_request() is called). * * Currently bypassing this but the real solution is to not update the scroll adjustments * untill we've recieved an allocation (never update scroll adjustments from size-requests). */ prevent_recursion_hack = TRUE; gtk_tree_view_measure (GTK_WIDGET (tree_view), GTK_ORIENTATION_HORIZONTAL, -1, &requisition.width, &dummy, NULL, NULL); gtk_tree_view_measure (GTK_WIDGET (tree_view), GTK_ORIENTATION_VERTICAL, -1, &requisition.height, &dummy, NULL, NULL); prevent_recursion_hack = FALSE; /* If rows above the current position have changed height, this has * affected the current view and thus needs a redraw. */ if (y != -1 && y < gtk_adjustment_get_value (tree_view->vadjustment)) gtk_widget_queue_draw (GTK_WIDGET (tree_view)); gtk_adjustment_set_upper (tree_view->hadjustment, MAX (gtk_adjustment_get_upper (tree_view->hadjustment), requisition.width)); gtk_adjustment_set_upper (tree_view->vadjustment, MAX (gtk_adjustment_get_upper (tree_view->vadjustment), requisition.height)); if (queue_resize) gtk_widget_queue_resize (GTK_WIDGET (tree_view)); } if (path) gtk_tree_path_free (path); g_timer_destroy (timer); if (!retval && gtk_widget_get_mapped (GTK_WIDGET (tree_view))) update_prelight (tree_view, tree_view->event_last_x, tree_view->event_last_y); return retval; } static void disable_adjustment_animation (GtkTreeView *tree_view) { gtk_adjustment_enable_animation (tree_view->vadjustment, NULL, gtk_adjustment_get_animation_duration (tree_view->vadjustment)); } static void maybe_reenable_adjustment_animation (GtkTreeView *tree_view) { if (tree_view->presize_handler_tick_cb != 0 || tree_view->validate_rows_timer != 0) return; gtk_adjustment_enable_animation (tree_view->vadjustment, gtk_widget_get_frame_clock (GTK_WIDGET (tree_view)), gtk_adjustment_get_animation_duration (tree_view->vadjustment)); } static gboolean do_presize_handler (GtkTreeView *tree_view) { if (tree_view->mark_rows_col_dirty) { if (tree_view->tree) gtk_tree_rbtree_column_invalid (tree_view->tree); tree_view->mark_rows_col_dirty = FALSE; } validate_visible_area (tree_view); if (tree_view->presize_handler_tick_cb != 0) { gtk_widget_remove_tick_callback (GTK_WIDGET (tree_view), tree_view->presize_handler_tick_cb); tree_view->presize_handler_tick_cb = 0; } if (tree_view->fixed_height_mode) { GtkRequisition requisition; gtk_widget_get_preferred_size (GTK_WIDGET (tree_view), &requisition, NULL); gtk_adjustment_set_upper (tree_view->hadjustment, MAX (gtk_adjustment_get_upper (tree_view->hadjustment), requisition.width)); gtk_adjustment_set_upper (tree_view->vadjustment, MAX (gtk_adjustment_get_upper (tree_view->vadjustment), requisition.height)); gtk_widget_queue_resize (GTK_WIDGET (tree_view)); } maybe_reenable_adjustment_animation (tree_view); return FALSE; } static gboolean presize_handler_callback (GtkWidget *widget, GdkFrameClock *clock, gpointer unused) { do_presize_handler (GTK_TREE_VIEW (widget)); return G_SOURCE_REMOVE; } static gboolean validate_rows (GtkTreeView *tree_view) { gboolean retval; if (tree_view->presize_handler_tick_cb) { do_presize_handler (tree_view); return G_SOURCE_CONTINUE; } retval = do_validate_rows (tree_view, TRUE); if (! retval && tree_view->validate_rows_timer) { g_source_remove (tree_view->validate_rows_timer); tree_view->validate_rows_timer = 0; maybe_reenable_adjustment_animation (tree_view); } return retval; } static void install_presize_handler (GtkTreeView *tree_view) { if (! gtk_widget_get_realized (GTK_WIDGET (tree_view))) return; disable_adjustment_animation (tree_view); if (! tree_view->presize_handler_tick_cb) { tree_view->presize_handler_tick_cb = gtk_widget_add_tick_callback (GTK_WIDGET (tree_view), presize_handler_callback, NULL, NULL); } if (! tree_view->validate_rows_timer) { tree_view->validate_rows_timer = g_idle_add_full (GTK_TREE_VIEW_PRIORITY_VALIDATE, (GSourceFunc) validate_rows, tree_view, NULL); g_source_set_name_by_id (tree_view->validate_rows_timer, "[gtk] validate_rows"); } } static gboolean scroll_sync_handler (GtkTreeView *tree_view) { if (gtk_tree_view_get_height (tree_view) <= gtk_adjustment_get_page_size (tree_view->vadjustment)) gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->vadjustment), 0); else if (gtk_tree_row_reference_valid (tree_view->top_row)) gtk_tree_view_top_row_to_dy (tree_view); else gtk_tree_view_dy_to_top_row (tree_view); tree_view->scroll_sync_timer = 0; return FALSE; } static void install_scroll_sync_handler (GtkTreeView *tree_view) { if (!gtk_widget_get_realized (GTK_WIDGET (tree_view))) return; if (!tree_view->scroll_sync_timer) { tree_view->scroll_sync_timer = g_idle_add_full (GTK_TREE_VIEW_PRIORITY_SCROLL_SYNC, (GSourceFunc) scroll_sync_handler, tree_view, NULL); g_source_set_name_by_id (tree_view->scroll_sync_timer, "[gtk] scroll_sync_handler"); } } static void gtk_tree_view_set_top_row (GtkTreeView *tree_view, GtkTreePath *path, gint offset) { gtk_tree_row_reference_free (tree_view->top_row); if (!path) { tree_view->top_row = NULL; tree_view->top_row_dy = 0; } else { tree_view->top_row = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->model, path); tree_view->top_row_dy = offset; } } /* Always call this iff dy is in the visible range. If the tree is empty, then * it’s set to be NULL, and top_row_dy is 0; */ static void gtk_tree_view_dy_to_top_row (GtkTreeView *tree_view) { gint offset; GtkTreePath *path; GtkTreeRBTree *tree; GtkTreeRBNode *node; if (tree_view->tree == NULL) { gtk_tree_view_set_top_row (tree_view, NULL, 0); } else { offset = gtk_tree_rbtree_find_offset (tree_view->tree, tree_view->dy, &tree, &node); if (tree == NULL) { gtk_tree_view_set_top_row (tree_view, NULL, 0); } else { path = _gtk_tree_path_new_from_rbtree (tree, node); gtk_tree_view_set_top_row (tree_view, path, offset); gtk_tree_path_free (path); } } } static void gtk_tree_view_top_row_to_dy (GtkTreeView *tree_view) { GtkTreePath *path; GtkTreeRBTree *tree; GtkTreeRBNode *node; int new_dy; /* Avoid recursive calls */ if (tree_view->in_top_row_to_dy) return; if (tree_view->top_row) path = gtk_tree_row_reference_get_path (tree_view->top_row); else path = NULL; if (!path) tree = NULL; else _gtk_tree_view_find_node (tree_view, path, &tree, &node); if (path) gtk_tree_path_free (path); if (tree == NULL) { /* keep dy and set new toprow */ gtk_tree_row_reference_free (tree_view->top_row); tree_view->top_row = NULL; tree_view->top_row_dy = 0; /* DO NOT install the idle handler */ gtk_tree_view_dy_to_top_row (tree_view); return; } if (gtk_tree_view_get_row_height (tree_view, node) < tree_view->top_row_dy) { /* new top row -- do NOT install the idle handler */ gtk_tree_view_dy_to_top_row (tree_view); return; } new_dy = gtk_tree_rbtree_node_find_offset (tree, node); new_dy += tree_view->top_row_dy; if (new_dy + gtk_adjustment_get_page_size (tree_view->vadjustment) > gtk_tree_view_get_height (tree_view)) new_dy = gtk_tree_view_get_height (tree_view) - gtk_adjustment_get_page_size (tree_view->vadjustment); new_dy = MAX (0, new_dy); tree_view->in_top_row_to_dy = TRUE; gtk_adjustment_set_value (tree_view->vadjustment, (gdouble)new_dy); tree_view->in_top_row_to_dy = FALSE; } void _gtk_tree_view_install_mark_rows_col_dirty (GtkTreeView *tree_view, gboolean install_handler) { tree_view->mark_rows_col_dirty = TRUE; if (install_handler) install_presize_handler (tree_view); } /* * This function works synchronously (due to the while (validate_rows...) * loop). * * There was a check for column_type != GTK_TREE_VIEW_COLUMN_AUTOSIZE * here. You now need to check that yourself. */ void _gtk_tree_view_column_autosize (GtkTreeView *tree_view, GtkTreeViewColumn *column) { g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (column)); _gtk_tree_view_column_cell_set_dirty (column, FALSE); do_presize_handler (tree_view); while (validate_rows (tree_view)); gtk_widget_queue_resize (GTK_WIDGET (tree_view)); } /* Drag-and-drop */ typedef struct { GtkTreeRowReference *dest_row; guint path_down_mode : 1; guint empty_view_drop : 1; guint drop_append_mode : 1; } DestRow; static void dest_row_free (gpointer data) { DestRow *dr = (DestRow *)data; gtk_tree_row_reference_free (dr->dest_row); g_slice_free (DestRow, dr); } static void set_dest_row (GdkDrop *drop, GtkTreeModel *model, GtkTreePath *dest_row, gboolean path_down_mode, gboolean empty_view_drop, gboolean drop_append_mode) { DestRow *dr; if (!dest_row) { g_object_set_data_full (G_OBJECT (drop), I_("gtk-tree-view-dest-row"), NULL, NULL); return; } dr = g_slice_new (DestRow); dr->dest_row = gtk_tree_row_reference_new (model, dest_row); dr->path_down_mode = path_down_mode != FALSE; dr->empty_view_drop = empty_view_drop != FALSE; dr->drop_append_mode = drop_append_mode != FALSE; g_object_set_data_full (G_OBJECT (drop), I_("gtk-tree-view-dest-row"), dr, (GDestroyNotify) dest_row_free); } static GtkTreePath* get_dest_row (GdkDrop *drop, gboolean *path_down_mode) { DestRow *dr = g_object_get_data (G_OBJECT (drop), "gtk-tree-view-dest-row"); if (dr) { GtkTreePath *path = NULL; if (path_down_mode) *path_down_mode = dr->path_down_mode; if (dr->dest_row) path = gtk_tree_row_reference_get_path (dr->dest_row); else if (dr->empty_view_drop) path = gtk_tree_path_new_from_indices (0, -1); else path = NULL; if (path && dr->drop_append_mode) gtk_tree_path_next (path); return path; } else return NULL; } /* Get/set whether drag_motion requested the drag data and * drag_data_received should thus not actually insert the data, * since the data doesn’t result from a drop. */ static void set_status_pending (GdkDrop *drop, GdkDragAction suggested_action) { g_object_set_data (G_OBJECT (drop), I_("gtk-tree-view-status-pending"), GINT_TO_POINTER (suggested_action)); } static GdkDragAction get_status_pending (GdkDrop *drop) { return GPOINTER_TO_INT (g_object_get_data (G_OBJECT (drop), "gtk-tree-view-status-pending")); } static TreeViewDragInfo* get_info (GtkTreeView *tree_view) { return g_object_get_data (G_OBJECT (tree_view), "gtk-tree-view-drag-info"); } static void destroy_info (TreeViewDragInfo *di) { g_clear_pointer (&di->source_formats, gdk_content_formats_unref); g_clear_pointer (&di->source_item, gtk_tree_row_reference_free); g_clear_object (&di->dest); g_slice_free (TreeViewDragInfo, di); } static TreeViewDragInfo* ensure_info (GtkTreeView *tree_view) { TreeViewDragInfo *di; di = get_info (tree_view); if (di == NULL) { di = g_slice_new0 (TreeViewDragInfo); g_object_set_data_full (G_OBJECT (tree_view), I_("gtk-tree-view-drag-info"), di, (GDestroyNotify) destroy_info); } return di; } static void remove_info (GtkTreeView *tree_view) { TreeViewDragInfo *di; di = get_info (tree_view); if (di && di->dest) gtk_widget_remove_controller (GTK_WIDGET (tree_view), GTK_EVENT_CONTROLLER (di->dest)); g_object_set_data (G_OBJECT (tree_view), I_("gtk-tree-view-drag-info"), NULL); } static void add_scroll_timeout (GtkTreeView *tree_view) { if (tree_view->scroll_timeout == 0) { tree_view->scroll_timeout = g_timeout_add (150, scroll_row_timeout, tree_view); g_source_set_name_by_id (tree_view->scroll_timeout, "[gtk] scroll_row_timeout"); } } static void remove_scroll_timeout (GtkTreeView *tree_view) { if (tree_view->scroll_timeout != 0) { g_source_remove (tree_view->scroll_timeout); tree_view->scroll_timeout = 0; } } static gboolean check_model_dnd (GtkTreeModel *model, GType required_iface, const gchar *signal) { if (model == NULL || !G_TYPE_CHECK_INSTANCE_TYPE ((model), required_iface)) { g_warning ("You must override the default '%s' handler " "on GtkTreeView when using models that don't support " "the %s interface and enabling drag-and-drop. The simplest way to do this " "is to connect to '%s' and call " "g_signal_stop_emission_by_name() in your signal handler to prevent " "the default handler from running. Look at the source code " "for the default handler in gtktreeview.c to get an idea what " "your handler should do. (gtktreeview.c is in the GTK source " "code.) If you're using GTK from a language other than C, " "there may be a more natural way to override default handlers, e.g. via derivation.", signal, g_type_name (required_iface), signal); return FALSE; } else return TRUE; } static void remove_open_timeout (GtkTreeView *tree_view) { if (tree_view->open_dest_timeout != 0) { g_source_remove (tree_view->open_dest_timeout); tree_view->open_dest_timeout = 0; } } static gint open_row_timeout (gpointer data) { GtkTreeView *tree_view = data; GtkTreePath *dest_path = NULL; GtkTreeViewDropPosition pos; gboolean result = FALSE; gtk_tree_view_get_drag_dest_row (tree_view, &dest_path, &pos); if (dest_path && (pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER || pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE)) { gtk_tree_view_expand_row (tree_view, dest_path, FALSE); tree_view->open_dest_timeout = 0; gtk_tree_path_free (dest_path); } else { if (dest_path) gtk_tree_path_free (dest_path); result = TRUE; } return result; } static gboolean scroll_row_timeout (gpointer data) { GtkTreeView *tree_view = data; gtk_tree_view_vertical_autoscroll (tree_view); if (tree_view->rubber_band_status == RUBBER_BAND_ACTIVE) gtk_tree_view_update_rubber_band (tree_view); return TRUE; } /* Returns TRUE if event should not be propagated to parent widgets */ static gboolean set_destination_row (GtkTreeView *tree_view, GtkDropTarget *dest, /* coordinates relative to the widget */ gint x, gint y, GdkDragAction *suggested_action, GType *target) { GtkTreePath *path = NULL; GtkTreeViewDropPosition pos; GtkTreeViewDropPosition old_pos; TreeViewDragInfo *di; GtkWidget *widget; GtkTreePath *old_dest_path = NULL; gboolean can_drop = FALSE; GdkContentFormats *formats; *suggested_action = 0; *target = G_TYPE_INVALID; widget = GTK_WIDGET (tree_view); di = get_info (tree_view); if (di == NULL || y - gtk_tree_view_get_effective_header_height (tree_view) < 0) { /* someone unset us as a drag dest, note that if * we return FALSE drag_leave isn't called */ gtk_tree_view_set_drag_dest_row (tree_view, NULL, GTK_TREE_VIEW_DROP_BEFORE); remove_scroll_timeout (GTK_TREE_VIEW (widget)); remove_open_timeout (GTK_TREE_VIEW (widget)); return FALSE; /* no longer a drop site */ } formats = gtk_drop_target_get_formats (dest); *target = gdk_content_formats_match_gtype (formats, formats); if (*target == G_TYPE_INVALID) return FALSE; if (!gtk_tree_view_get_dest_row_at_pos (tree_view, x, y, &path, &pos)) { gint n_children; GtkTreeModel *model; remove_open_timeout (tree_view); /* the row got dropped on empty space, let's setup a special case */ if (path) gtk_tree_path_free (path); model = gtk_tree_view_get_model (tree_view); n_children = gtk_tree_model_iter_n_children (model, NULL); if (n_children) { pos = GTK_TREE_VIEW_DROP_AFTER; path = gtk_tree_path_new_from_indices (n_children - 1, -1); } else { pos = GTK_TREE_VIEW_DROP_BEFORE; path = gtk_tree_path_new_from_indices (0, -1); } can_drop = TRUE; goto out; } g_assert (path); /* If we left the current row's "open" zone, unset the timeout for * opening the row */ gtk_tree_view_get_drag_dest_row (tree_view, &old_dest_path, &old_pos); if (old_dest_path && (gtk_tree_path_compare (path, old_dest_path) != 0 || !(pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER || pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE))) remove_open_timeout (tree_view); if (old_dest_path) gtk_tree_path_free (old_dest_path); if (TRUE /* FIXME if the location droppable predicate */) { can_drop = TRUE; } out: if (can_drop) { *suggested_action = GDK_ACTION_COPY | GDK_ACTION_MOVE; gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget), path, pos); } else { /* can't drop here */ remove_open_timeout (tree_view); gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget), NULL, GTK_TREE_VIEW_DROP_BEFORE); } if (path) gtk_tree_path_free (path); return TRUE; } static GtkTreePath* get_logical_dest_row (GtkTreeView *tree_view, gboolean *path_down_mode, gboolean *drop_append_mode) { /* adjust path to point to the row the drop goes in front of */ GtkTreePath *path = NULL; GtkTreeViewDropPosition pos; g_return_val_if_fail (path_down_mode != NULL, NULL); g_return_val_if_fail (drop_append_mode != NULL, NULL); *path_down_mode = FALSE; *drop_append_mode = 0; gtk_tree_view_get_drag_dest_row (tree_view, &path, &pos); if (path == NULL) return NULL; if (pos == GTK_TREE_VIEW_DROP_BEFORE) ; /* do nothing */ else if (pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE || pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER) *path_down_mode = TRUE; else { GtkTreeIter iter; GtkTreeModel *model = gtk_tree_view_get_model (tree_view); g_assert (pos == GTK_TREE_VIEW_DROP_AFTER); if (!gtk_tree_model_get_iter (model, &iter, path) || !gtk_tree_model_iter_next (model, &iter)) *drop_append_mode = 1; else { *drop_append_mode = 0; gtk_tree_path_next (path); } } return path; } static gboolean gtk_tree_view_maybe_begin_dragging_row (GtkTreeView *tree_view) { GtkWidget *widget = GTK_WIDGET (tree_view); gdouble start_x, start_y, offset_x, offset_y; TreeViewDragInfo *di; GtkTreePath *path = NULL; gint button; GtkTreeModel *model; gboolean retval = FALSE; gint bin_x, bin_y; GdkSurface *surface; GdkDevice *device; GdkContentProvider *content; GdkDrag *drag; GdkPaintable *icon; di = get_info (tree_view); if (di == NULL || !di->source_set) goto out; if (!gtk_gesture_is_recognized (tree_view->drag_gesture)) goto out; gtk_gesture_drag_get_start_point (GTK_GESTURE_DRAG (tree_view->drag_gesture), &start_x, &start_y); gtk_gesture_drag_get_offset (GTK_GESTURE_DRAG (tree_view->drag_gesture), &offset_x, &offset_y); if (!gtk_drag_check_threshold (widget, 0, 0, offset_x, offset_y)) goto out; model = gtk_tree_view_get_model (tree_view); if (model == NULL) goto out; button = gtk_gesture_single_get_current_button (GTK_GESTURE_SINGLE (tree_view->drag_gesture)); /* Deny the click gesture */ gtk_gesture_set_state (GTK_GESTURE (tree_view->click_gesture), GTK_EVENT_SEQUENCE_DENIED); gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, start_x, start_y, &bin_x, &bin_y); gtk_tree_view_get_path_at_pos (tree_view, bin_x, bin_y, &path, NULL, NULL, NULL); if (path == NULL) goto out; if (!GTK_IS_TREE_DRAG_SOURCE (model) || !gtk_tree_drag_source_row_draggable (GTK_TREE_DRAG_SOURCE (model), path)) goto out; if (!(GDK_BUTTON1_MASK << (button - 1) & di->start_button_mask)) goto out; /* Now we can begin the drag */ gtk_gesture_set_state (GTK_GESTURE (tree_view->drag_gesture), GTK_EVENT_SEQUENCE_CLAIMED); surface = gtk_native_get_surface (gtk_widget_get_native (GTK_WIDGET (tree_view))); device = gtk_gesture_get_device (GTK_GESTURE (tree_view->drag_gesture)), content = gtk_tree_view_drag_data_get (tree_view, path); if (content == NULL) goto out; retval = TRUE; drag = gdk_drag_begin (surface, device, content, di->source_actions, start_x, start_y); g_object_unref (content); g_signal_connect (drag, "dnd-finished", G_CALLBACK (gtk_tree_view_dnd_finished_cb), tree_view); icon = gtk_tree_view_create_row_drag_icon (tree_view, path); gtk_drag_icon_set_from_paintable (drag, icon, tree_view->press_start_x + 1, 1); g_object_unref (icon); di->drag = drag; g_object_unref (drag); di->source_item = gtk_tree_row_reference_new (model, path); out: if (path) gtk_tree_path_free (path); return retval; } static void gtk_tree_view_dnd_finished_cb (GdkDrag *drag, GtkWidget *widget) { GtkTreeView *tree_view = GTK_TREE_VIEW (widget); TreeViewDragInfo *di; GtkTreeModel *model; GtkTreePath *source_row; tree_view->event_last_x = -10000; tree_view->event_last_y = -10000; if (gdk_drag_get_selected_action (drag) != GDK_ACTION_MOVE) return; tree_view = GTK_TREE_VIEW (widget); model = gtk_tree_view_get_model (tree_view); if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_SOURCE, "drag_data_delete")) return; di = get_info (tree_view); if (di == NULL || di->source_item == NULL) return; source_row = gtk_tree_row_reference_get_path (di->source_item); if (source_row == NULL) return; gtk_tree_drag_source_drag_data_delete (GTK_TREE_DRAG_SOURCE (model), source_row); gtk_tree_path_free (source_row); g_clear_pointer (&di->source_item, gtk_tree_row_reference_free); } /* Default signal implementations for the drag signals */ static GdkContentProvider * gtk_tree_view_drag_data_get (GtkTreeView *tree_view, GtkTreePath *source_row) { GtkTreeModel *model; GdkContentProvider *content; model = gtk_tree_view_get_model (tree_view); if (model == NULL) return NULL; /* We can implement the GTK_TREE_MODEL_ROW target generically for * any model; for DragSource models there are some other targets * we also support. */ if (GTK_IS_TREE_DRAG_SOURCE (model)) content = gtk_tree_drag_source_drag_data_get (GTK_TREE_DRAG_SOURCE (model), source_row); else content = NULL; /* If drag_data_get does nothing, try providing row data. */ if (!content) content = gtk_tree_create_row_drag_content (model, source_row); return content; } static void gtk_tree_view_drag_leave (GtkDropTarget *dest, GdkDrop *drop, GtkTreeView *tree_view) { /* unset any highlight row */ gtk_tree_view_set_drag_dest_row (tree_view, NULL, GTK_TREE_VIEW_DROP_BEFORE); remove_scroll_timeout (tree_view); remove_open_timeout (tree_view); tree_view->event_last_x = -10000; tree_view->event_last_y = -10000; } static void gtk_tree_view_drag_motion (GtkDropTarget *dest, GdkDrop *drop, int x, int y, GtkTreeView *tree_view) { gboolean empty; GtkTreePath *path = NULL; GtkTreeViewDropPosition pos; GdkDragAction suggested_action = 0; GType target; if (!set_destination_row (tree_view, dest, x, y, &suggested_action, &target)) { gdk_drop_status (drop, 0); return; } tree_view->event_last_x = x; tree_view->event_last_y = y; gtk_tree_view_get_drag_dest_row (tree_view, &path, &pos); /* we only know this *after* set_desination_row */ empty = tree_view->empty_view_drop; if (path == NULL && !empty) { /* Can't drop here. */ gdk_drop_status (drop, 0); } else { if (tree_view->open_dest_timeout == 0 && (pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER || pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE)) { tree_view->open_dest_timeout = g_timeout_add (AUTO_EXPAND_TIMEOUT, open_row_timeout, tree_view); g_source_set_name_by_id (tree_view->open_dest_timeout, "[gtk] open_row_timeout"); } else { add_scroll_timeout (tree_view); } if (target == GTK_TYPE_TREE_ROW_DATA) { /* Request data so we can use the source row when * determining whether to accept the drop */ set_status_pending (drop, suggested_action); gdk_drop_read_value_async (drop, GTK_TYPE_TREE_ROW_DATA, G_PRIORITY_DEFAULT, NULL, gtk_tree_view_drag_data_received, tree_view); } else { set_status_pending (drop, 0); gdk_drop_status (drop, suggested_action); } } if (path) gtk_tree_path_free (path); } static gboolean gtk_tree_view_drag_drop (GtkDropTarget *dest, GdkDrop *drop, int x, int y, GtkTreeView *tree_view) { GtkTreePath *path; GdkDragAction suggested_action = 0; GType target = G_TYPE_INVALID; TreeViewDragInfo *di; GtkTreeModel *model; gboolean path_down_mode; gboolean drop_append_mode; model = gtk_tree_view_get_model (tree_view); remove_scroll_timeout (tree_view); remove_open_timeout (tree_view); di = get_info (tree_view); if (di == NULL) return FALSE; if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag_drop")) return FALSE; if (!set_destination_row (tree_view, dest, x, y, &suggested_action, &target)) return FALSE; path = get_logical_dest_row (tree_view, &path_down_mode, &drop_append_mode); if (target != G_TYPE_INVALID && path != NULL) { /* in case a motion had requested drag data, change things so we * treat drag data receives as a drop. */ set_status_pending (drop, 0); set_dest_row (drop, model, path, path_down_mode, tree_view->empty_view_drop, drop_append_mode); } if (path) gtk_tree_path_free (path); /* Unset this thing */ gtk_tree_view_set_drag_dest_row (tree_view, NULL, GTK_TREE_VIEW_DROP_BEFORE); if (target != G_TYPE_INVALID) { gdk_drop_read_value_async (drop, GTK_TYPE_TREE_ROW_DATA, G_PRIORITY_DEFAULT, NULL, gtk_tree_view_drag_data_received, tree_view); return TRUE; } else return FALSE; } static GdkDragAction gtk_tree_view_get_action (GtkWidget *widget, GdkDrop *drop) { GtkTreeView *tree_view = GTK_TREE_VIEW (widget); TreeViewDragInfo *di; GdkDrag *drag = gdk_drop_get_drag (drop); GdkDragAction actions; di = get_info (tree_view); actions = gdk_drop_get_actions (drop); if (di && di->drag == drag && actions & GDK_ACTION_MOVE) return GDK_ACTION_MOVE; if (actions & GDK_ACTION_COPY) return GDK_ACTION_COPY; if (actions & GDK_ACTION_MOVE) return GDK_ACTION_MOVE; return 0; } static void gtk_tree_view_drag_data_received (GObject *source, GAsyncResult *result, gpointer data) { GtkTreeView *tree_view = GTK_TREE_VIEW (data); GdkDrop *drop = GDK_DROP (source); GtkTreePath *path; TreeViewDragInfo *di; GtkTreeModel *model; GtkTreePath *dest_row; GdkDragAction suggested_action; gboolean path_down_mode; gboolean drop_append_mode; const GValue *value; suggested_action = 0; value = gdk_drop_read_value_finish (drop, result, NULL); if (value == NULL) return; model = gtk_tree_view_get_model (tree_view); if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag_data_received")) return; di = get_info (tree_view); if (di == NULL) return; suggested_action = get_status_pending (drop); if (suggested_action) { /* We are getting this data due to a request in drag_motion, * rather than due to a request in drag_drop, so we are just * supposed to call drag_status, not actually paste in the * data. */ path = get_logical_dest_row (tree_view, &path_down_mode, &drop_append_mode); if (path == NULL) suggested_action = 0; else if (path_down_mode) gtk_tree_path_down (path); if (suggested_action) { if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model), path, value)) { if (path_down_mode) { path_down_mode = FALSE; gtk_tree_path_up (path); if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model), path, value)) suggested_action = 0; } else suggested_action = 0; } } gdk_drop_status (drop, suggested_action); if (path) gtk_tree_path_free (path); /* If you can't drop, remove user drop indicator until the next motion */ if (suggested_action == 0) gtk_tree_view_set_drag_dest_row (tree_view, NULL, GTK_TREE_VIEW_DROP_BEFORE); return; } dest_row = get_dest_row (drop, &path_down_mode); if (dest_row == NULL) return; if (path_down_mode) { gtk_tree_path_down (dest_row); if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model), dest_row, value)) gtk_tree_path_up (dest_row); } suggested_action = gtk_tree_view_get_action (GTK_WIDGET (tree_view), drop); if (suggested_action && !gtk_tree_drag_dest_drag_data_received (GTK_TREE_DRAG_DEST (model), dest_row, value)) suggested_action = 0; gdk_drop_finish (drop, suggested_action); if (gtk_tree_path_get_depth (dest_row) == 1 && gtk_tree_path_get_indices (dest_row)[0] == 0 && gtk_tree_model_iter_n_children (tree_view->model, NULL) != 0) { /* special special case drag to "0", scroll to first item */ if (!tree_view->scroll_to_path) gtk_tree_view_scroll_to_cell (tree_view, dest_row, NULL, FALSE, 0.0, 0.0); } gtk_tree_path_free (dest_row); /* drop dest_row */ set_dest_row (drop, NULL, NULL, FALSE, FALSE, FALSE); } /* GtkContainer Methods */ static void gtk_tree_view_remove (GtkContainer *container, GtkWidget *widget) { GtkTreeView *tree_view = GTK_TREE_VIEW (container); GtkTreeViewChild *child = NULL; GList *tmp_list; tmp_list = tree_view->children; while (tmp_list) { child = tmp_list->data; if (child->widget == widget) { gtk_widget_unparent (widget); tree_view->children = g_list_remove_link (tree_view->children, tmp_list); g_list_free_1 (tmp_list); g_slice_free (GtkTreeViewChild, child); return; } tmp_list = tmp_list->next; } tmp_list = tree_view->columns; while (tmp_list) { GtkTreeViewColumn *column; GtkWidget *button; column = tmp_list->data; button = gtk_tree_view_column_get_button (column); if (button == widget) { gtk_widget_unparent (widget); return; } tmp_list = tmp_list->next; } } static void gtk_tree_view_forall (GtkContainer *container, GtkCallback callback, gpointer callback_data) { GtkTreeView *tree_view = GTK_TREE_VIEW (container); GtkTreeViewChild *child = NULL; GList *tmp_list; tmp_list = tree_view->children; while (tmp_list) { child = tmp_list->data; tmp_list = tmp_list->next; (* callback) (child->widget, callback_data); } } /* Returns TRUE is any of the columns contains a cell that can-focus. * If this is not the case, a column-spanning focus rectangle will be * drawn. */ static gboolean gtk_tree_view_has_can_focus_cell (GtkTreeView *tree_view) { GList *list; for (list = tree_view->columns; list; list = list->next) { GtkTreeViewColumn *column = list->data; if (!gtk_tree_view_column_get_visible (column)) continue; if (gtk_cell_area_is_activatable (gtk_cell_layout_get_area (GTK_CELL_LAYOUT (column)))) return TRUE; } return FALSE; } static void column_sizing_notify (GObject *object, GParamSpec *pspec, gpointer data) { GtkTreeViewColumn *c = GTK_TREE_VIEW_COLUMN (object); if (gtk_tree_view_column_get_sizing (c) != GTK_TREE_VIEW_COLUMN_FIXED) /* disable fixed height mode */ g_object_set (data, "fixed-height-mode", FALSE, NULL); } /** * gtk_tree_view_set_fixed_height_mode: * @tree_view: a #GtkTreeView * @enable: %TRUE to enable fixed height mode * * Enables or disables the fixed height mode of @tree_view. * Fixed height mode speeds up #GtkTreeView by assuming that all * rows have the same height. * Only enable this option if all rows are the same height and all * columns are of type %GTK_TREE_VIEW_COLUMN_FIXED. **/ void gtk_tree_view_set_fixed_height_mode (GtkTreeView *tree_view, gboolean enable) { GList *l; enable = enable != FALSE; if (enable == tree_view->fixed_height_mode) return; if (!enable) { tree_view->fixed_height_mode = 0; tree_view->fixed_height = -1; } else { /* make sure all columns are of type FIXED */ for (l = tree_view->columns; l; l = l->next) { GtkTreeViewColumn *c = l->data; g_return_if_fail (gtk_tree_view_column_get_sizing (c) == GTK_TREE_VIEW_COLUMN_FIXED); } /* yes, we really have to do this is in a separate loop */ for (l = tree_view->columns; l; l = l->next) g_signal_connect (l->data, "notify::sizing", G_CALLBACK (column_sizing_notify), tree_view); tree_view->fixed_height_mode = 1; tree_view->fixed_height = -1; } /* force a revalidation */ install_presize_handler (tree_view); g_object_notify_by_pspec (G_OBJECT (tree_view), tree_view_props[PROP_FIXED_HEIGHT_MODE]); } /** * gtk_tree_view_get_fixed_height_mode: * @tree_view: a #GtkTreeView * * Returns whether fixed height mode is turned on for @tree_view. * * Returns: %TRUE if @tree_view is in fixed height mode **/ gboolean gtk_tree_view_get_fixed_height_mode (GtkTreeView *tree_view) { return tree_view->fixed_height_mode; } /* Returns TRUE if the focus is within the headers, after the focus operation is * done */ static gboolean gtk_tree_view_header_focus (GtkTreeView *tree_view, GtkDirectionType dir, gboolean clamp_column_visible) { GtkTreeViewColumn *column; GtkWidget *button; GtkWidget *focus_child; GList *last_column, *first_column; GList *tmp_list; gboolean rtl; if (! tree_view->headers_visible) return FALSE; focus_child = gtk_widget_get_focus_child (GTK_WIDGET (tree_view)); first_column = tree_view->columns; while (first_column) { column = GTK_TREE_VIEW_COLUMN (first_column->data); button = gtk_tree_view_column_get_button (column); if (gtk_widget_get_can_focus (button) && gtk_tree_view_column_get_visible (column) && (gtk_tree_view_column_get_clickable (column) || gtk_tree_view_column_get_reorderable (column))) break; first_column = first_column->next; } /* No headers are visible, or are focusable. We can't focus in or out. */ if (first_column == NULL) return FALSE; last_column = g_list_last (tree_view->columns); while (last_column) { column = GTK_TREE_VIEW_COLUMN (last_column->data); button = gtk_tree_view_column_get_button (column); if (gtk_widget_get_can_focus (button) && gtk_tree_view_column_get_visible (column) && (gtk_tree_view_column_get_clickable (column) || gtk_tree_view_column_get_reorderable (column))) break; last_column = last_column->prev; } rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL); switch (dir) { case GTK_DIR_TAB_BACKWARD: case GTK_DIR_TAB_FORWARD: case GTK_DIR_UP: case GTK_DIR_DOWN: if (focus_child == NULL) { if (tree_view->focus_column != NULL) button = gtk_tree_view_column_get_button (tree_view->focus_column); else button = NULL; if (button && gtk_widget_get_can_focus (button)) focus_child = button; else focus_child = gtk_tree_view_column_get_button (GTK_TREE_VIEW_COLUMN (first_column->data)); gtk_widget_grab_focus (focus_child); break; } return FALSE; case GTK_DIR_LEFT: case GTK_DIR_RIGHT: if (focus_child == NULL) { if (tree_view->focus_column != NULL) focus_child = gtk_tree_view_column_get_button (tree_view->focus_column); else if (dir == GTK_DIR_LEFT) focus_child = gtk_tree_view_column_get_button (GTK_TREE_VIEW_COLUMN (last_column->data)); else focus_child = gtk_tree_view_column_get_button (GTK_TREE_VIEW_COLUMN (first_column->data)); gtk_widget_grab_focus (focus_child); break; } if (gtk_widget_child_focus (focus_child, dir)) { /* The focus moves inside the button. */ /* This is probably a great example of bad UI */ break; } /* We need to move the focus among the row of buttons. */ for (tmp_list = tree_view->columns; tmp_list; tmp_list = tmp_list->next) if (gtk_tree_view_column_get_button (GTK_TREE_VIEW_COLUMN (tmp_list->data)) == focus_child) break; if ((tmp_list == first_column && dir == (rtl ? GTK_DIR_RIGHT : GTK_DIR_LEFT)) || (tmp_list == last_column && dir == (rtl ? GTK_DIR_LEFT : GTK_DIR_RIGHT))) { gtk_widget_error_bell (GTK_WIDGET (tree_view)); break; } while (tmp_list) { if (dir == (rtl ? GTK_DIR_LEFT : GTK_DIR_RIGHT)) tmp_list = tmp_list->next; else tmp_list = tmp_list->prev; if (tmp_list == NULL) { g_warning ("Internal button not found"); break; } column = tmp_list->data; button = gtk_tree_view_column_get_button (column); if (button && gtk_tree_view_column_get_visible (column) && gtk_widget_get_can_focus (button)) { focus_child = button; gtk_widget_grab_focus (button); break; } } break; default: g_assert_not_reached (); break; } /* if focus child is non-null, we assume it's been set to the current focus child */ if (focus_child) { for (tmp_list = tree_view->columns; tmp_list; tmp_list = tmp_list->next) if (gtk_tree_view_column_get_button (GTK_TREE_VIEW_COLUMN (tmp_list->data)) == focus_child) { _gtk_tree_view_set_focus_column (tree_view, GTK_TREE_VIEW_COLUMN (tmp_list->data)); break; } if (clamp_column_visible) { gtk_tree_view_clamp_column_visible (tree_view, tree_view->focus_column, FALSE); } } return (focus_child != NULL); } /* This function returns in 'path' the first focusable path, if the given path * is already focusable, it’s the returned one. */ static gboolean search_first_focusable_path (GtkTreeView *tree_view, GtkTreePath **path, gboolean search_forward, GtkTreeRBTree **new_tree, GtkTreeRBNode **new_node) { GtkTreeRBTree *tree = NULL; GtkTreeRBNode *node = NULL; if (!path || !*path) return FALSE; _gtk_tree_view_find_node (tree_view, *path, &tree, &node); if (!tree || !node) return FALSE; while (node && row_is_separator (tree_view, NULL, *path)) { if (search_forward) gtk_tree_rbtree_next_full (tree, node, &tree, &node); else gtk_tree_rbtree_prev_full (tree, node, &tree, &node); if (*path) gtk_tree_path_free (*path); if (node) *path = _gtk_tree_path_new_from_rbtree (tree, node); else *path = NULL; } if (new_tree) *new_tree = tree; if (new_node) *new_node = node; return (*path != NULL); } static gint gtk_tree_view_focus (GtkWidget *widget, GtkDirectionType direction) { GtkTreeView *tree_view = GTK_TREE_VIEW (widget); GtkWidget *focus_child; if (!gtk_widget_is_sensitive (widget) || !gtk_widget_get_can_focus (widget)) return FALSE; focus_child = gtk_widget_get_focus_child (widget); gtk_tree_view_stop_editing (GTK_TREE_VIEW (widget), FALSE); /* Case 1. Headers currently have focus. */ if (focus_child) { switch (direction) { case GTK_DIR_LEFT: case GTK_DIR_RIGHT: gtk_tree_view_header_focus (tree_view, direction, TRUE); return TRUE; case GTK_DIR_TAB_BACKWARD: case GTK_DIR_UP: return FALSE; case GTK_DIR_TAB_FORWARD: case GTK_DIR_DOWN: return gtk_widget_grab_focus (widget); default: g_assert_not_reached (); return FALSE; } } /* Case 2. We don't have focus at all. */ if (!gtk_widget_has_focus (widget)) { return gtk_widget_grab_focus (widget); } /* Case 3. We have focus already. */ if (direction == GTK_DIR_TAB_BACKWARD) return (gtk_tree_view_header_focus (tree_view, direction, FALSE)); else if (direction == GTK_DIR_TAB_FORWARD) return FALSE; /* Other directions caught by the keybindings */ return gtk_widget_grab_focus (widget); } static gboolean gtk_tree_view_grab_focus (GtkWidget *widget) { if (!GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->grab_focus (widget)) return FALSE; gtk_tree_view_focus_to_cursor (GTK_TREE_VIEW (widget)); return TRUE; } static void gtk_tree_view_css_changed (GtkWidget *widget, GtkCssStyleChange *change) { GtkTreeView *tree_view = GTK_TREE_VIEW (widget); GList *list; GtkTreeViewColumn *column; GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->css_changed (widget, change); if (gtk_widget_get_realized (widget)) { gtk_tree_view_set_grid_lines (tree_view, tree_view->grid_lines); gtk_tree_view_set_enable_tree_lines (tree_view, tree_view->tree_lines_enabled); } if (change == NULL || gtk_css_style_change_affects (change, GTK_CSS_AFFECTS_SIZE)) { for (list = tree_view->columns; list; list = list->next) { column = list->data; _gtk_tree_view_column_cell_set_dirty (column, TRUE); } tree_view->fixed_height = -1; gtk_tree_rbtree_mark_invalid (tree_view->tree); } /* Invalidate expander size */ tree_view->expander_size = -1; } static gboolean gtk_tree_view_real_move_cursor (GtkTreeView *tree_view, GtkMovementStep step, gint count) { GdkModifierType state; g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE); g_return_val_if_fail (step == GTK_MOVEMENT_LOGICAL_POSITIONS || step == GTK_MOVEMENT_VISUAL_POSITIONS || step == GTK_MOVEMENT_DISPLAY_LINES || step == GTK_MOVEMENT_PAGES || step == GTK_MOVEMENT_BUFFER_ENDS, FALSE); if (tree_view->tree == NULL) return FALSE; if (!gtk_widget_has_focus (GTK_WIDGET (tree_view))) return FALSE; gtk_tree_view_stop_editing (tree_view, FALSE); tree_view->draw_keyfocus = TRUE; gtk_widget_grab_focus (GTK_WIDGET (tree_view)); if (gtk_get_current_event_state (&state)) { GdkModifierType extend_mod_mask; GdkModifierType modify_mod_mask; extend_mod_mask = gtk_widget_get_modifier_mask (GTK_WIDGET (tree_view), GDK_MODIFIER_INTENT_EXTEND_SELECTION); modify_mod_mask = gtk_widget_get_modifier_mask (GTK_WIDGET (tree_view), GDK_MODIFIER_INTENT_MODIFY_SELECTION); if ((state & modify_mod_mask) == modify_mod_mask) tree_view->modify_selection_pressed = TRUE; if ((state & extend_mod_mask) == extend_mod_mask) tree_view->extend_selection_pressed = TRUE; } /* else we assume not pressed */ switch (step) { /* currently we make no distinction. When we go bi-di, we need to */ case GTK_MOVEMENT_LOGICAL_POSITIONS: case GTK_MOVEMENT_VISUAL_POSITIONS: gtk_tree_view_move_cursor_left_right (tree_view, count); break; case GTK_MOVEMENT_DISPLAY_LINES: gtk_tree_view_move_cursor_up_down (tree_view, count); break; case GTK_MOVEMENT_PAGES: gtk_tree_view_move_cursor_page_up_down (tree_view, count); break; case GTK_MOVEMENT_BUFFER_ENDS: gtk_tree_view_move_cursor_start_end (tree_view, count); break; case GTK_MOVEMENT_WORDS: case GTK_MOVEMENT_DISPLAY_LINE_ENDS: case GTK_MOVEMENT_PARAGRAPHS: case GTK_MOVEMENT_PARAGRAPH_ENDS: case GTK_MOVEMENT_HORIZONTAL_PAGES: default: g_assert_not_reached (); } tree_view->modify_selection_pressed = FALSE; tree_view->extend_selection_pressed = FALSE; return TRUE; } static void gtk_tree_view_put (GtkTreeView *tree_view, GtkWidget *child_widget, GtkTreePath *path, GtkTreeViewColumn *column, const GtkBorder *border) { GtkTreeViewChild *child; g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); g_return_if_fail (GTK_IS_WIDGET (child_widget)); child = g_slice_new (GtkTreeViewChild); child->widget = child_widget; if (_gtk_tree_view_find_node (tree_view, path, &child->tree, &child->node)) { g_assert_not_reached (); } child->column = column; child->border = *border; tree_view->children = g_list_append (tree_view->children, child); gtk_css_node_insert_after (gtk_widget_get_css_node (GTK_WIDGET (tree_view)), gtk_widget_get_css_node (child_widget), tree_view->header_node); gtk_widget_set_parent (child_widget, GTK_WIDGET (tree_view)); } /* TreeModel Callbacks */ static void gtk_tree_view_row_changed (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data) { GtkTreeView *tree_view = (GtkTreeView *)data; GtkTreeRBTree *tree; GtkTreeRBNode *node; gboolean free_path = FALSE; GList *list; GtkTreePath *cursor_path; g_return_if_fail (path != NULL || iter != NULL); if (tree_view->cursor_node != NULL) cursor_path = _gtk_tree_path_new_from_rbtree (tree_view->cursor_tree, tree_view->cursor_node); else cursor_path = NULL; if (tree_view->edited_column && (cursor_path == NULL || gtk_tree_path_compare (cursor_path, path) == 0)) gtk_tree_view_stop_editing (tree_view, TRUE); if (cursor_path != NULL) gtk_tree_path_free (cursor_path); if (path == NULL) { path = gtk_tree_model_get_path (model, iter); free_path = TRUE; } else if (iter == NULL) gtk_tree_model_get_iter (model, iter, path); if (_gtk_tree_view_find_node (tree_view, path, &tree, &node)) /* We aren't actually showing the node */ goto done; if (tree == NULL) goto done; _gtk_tree_view_accessible_changed (tree_view, tree, node); if (tree_view->fixed_height_mode && tree_view->fixed_height >= 0) { gtk_tree_rbtree_node_set_height (tree, node, tree_view->fixed_height); gtk_widget_queue_draw (GTK_WIDGET (tree_view)); } else { gtk_tree_rbtree_node_mark_invalid (tree, node); for (list = tree_view->columns; list; list = list->next) { GtkTreeViewColumn *column; column = list->data; if (!gtk_tree_view_column_get_visible (column)) continue; if (gtk_tree_view_column_get_sizing (column) == GTK_TREE_VIEW_COLUMN_AUTOSIZE) { _gtk_tree_view_column_cell_set_dirty (column, TRUE); } } } done: if (!tree_view->fixed_height_mode && gtk_widget_get_realized (GTK_WIDGET (tree_view))) install_presize_handler (tree_view); if (free_path) gtk_tree_path_free (path); } static void gtk_tree_view_row_inserted (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data) { GtkTreeView *tree_view = (GtkTreeView *) data; gint *indices; GtkTreeRBTree *tree; GtkTreeRBNode *tmpnode = NULL; gint depth; gint i = 0; gint height; gboolean free_path = FALSE; gboolean node_visible = TRUE; g_return_if_fail (path != NULL || iter != NULL); if (tree_view->fixed_height_mode && tree_view->fixed_height >= 0) height = tree_view->fixed_height; else height = 0; if (path == NULL) { path = gtk_tree_model_get_path (model, iter); free_path = TRUE; } else if (iter == NULL) gtk_tree_model_get_iter (model, iter, path); if (tree_view->tree == NULL) tree_view->tree = gtk_tree_rbtree_new (); tree = tree_view->tree; /* Update all row-references */ gtk_tree_row_reference_inserted (G_OBJECT (data), path); depth = gtk_tree_path_get_depth (path); indices = gtk_tree_path_get_indices (path); /* First, find the parent tree */ while (i < depth - 1) { if (tree == NULL) { /* We aren't showing the node */ node_visible = FALSE; goto done; } tmpnode = gtk_tree_rbtree_find_count (tree, indices[i] + 1); if (tmpnode == NULL) { g_warning ("A node was inserted with a parent that's not in the tree.\n" \ "This possibly means that a GtkTreeModel inserted a child node\n" \ "before the parent was inserted."); goto done; } else if (!GTK_TREE_RBNODE_FLAG_SET (tmpnode, GTK_TREE_RBNODE_IS_PARENT)) { /* FIXME enforce correct behavior on model, probably */ /* In theory, the model should have emitted has_child_toggled here. We * try to catch it anyway, just to be safe, in case the model hasn't. */ GtkTreePath *tmppath = _gtk_tree_path_new_from_rbtree (tree, tmpnode); gtk_tree_view_row_has_child_toggled (model, tmppath, NULL, data); gtk_tree_path_free (tmppath); goto done; } tree = tmpnode->children; i++; } if (tree == NULL) { node_visible = FALSE; goto done; } /* ref the node */ gtk_tree_model_ref_node (tree_view->model, iter); if (indices[depth - 1] == 0) { tmpnode = gtk_tree_rbtree_find_count (tree, 1); tmpnode = gtk_tree_rbtree_insert_before (tree, tmpnode, height, FALSE); } else { tmpnode = gtk_tree_rbtree_find_count (tree, indices[depth - 1]); tmpnode = gtk_tree_rbtree_insert_after (tree, tmpnode, height, FALSE); } _gtk_tree_view_accessible_add (tree_view, tree, tmpnode); done: if (height > 0) { if (tree) gtk_tree_rbtree_node_mark_valid (tree, tmpnode); if (node_visible && node_is_visible (tree_view, tree, tmpnode)) gtk_widget_queue_resize (GTK_WIDGET (tree_view)); else gtk_widget_queue_resize (GTK_WIDGET (tree_view)); } else install_presize_handler (tree_view); if (free_path) gtk_tree_path_free (path); } static void gtk_tree_view_row_has_child_toggled (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data) { GtkTreeView *tree_view = (GtkTreeView *)data; GtkTreeIter real_iter; gboolean has_child; GtkTreeRBTree *tree; GtkTreeRBNode *node; gboolean free_path = FALSE; g_return_if_fail (path != NULL || iter != NULL); if (iter) real_iter = *iter; if (path == NULL) { path = gtk_tree_model_get_path (model, iter); free_path = TRUE; } else if (iter == NULL) gtk_tree_model_get_iter (model, &real_iter, path); if (_gtk_tree_view_find_node (tree_view, path, &tree, &node)) /* We aren't actually showing the node */ goto done; if (tree == NULL) goto done; has_child = gtk_tree_model_iter_has_child (model, &real_iter); /* Sanity check. */ if (GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_PARENT) == has_child) goto done; if (has_child) { GTK_TREE_RBNODE_SET_FLAG (node, GTK_TREE_RBNODE_IS_PARENT); _gtk_tree_view_accessible_add_state (tree_view, tree, node, GTK_CELL_RENDERER_EXPANDABLE); } else { GTK_TREE_RBNODE_UNSET_FLAG (node, GTK_TREE_RBNODE_IS_PARENT); _gtk_tree_view_accessible_remove_state (tree_view, tree, node, GTK_CELL_RENDERER_EXPANDABLE); } if (has_child && tree_view->is_list) { tree_view->is_list = FALSE; if (tree_view->show_expanders) { GList *list; for (list = tree_view->columns; list; list = list->next) if (gtk_tree_view_column_get_visible (GTK_TREE_VIEW_COLUMN (list->data))) { _gtk_tree_view_column_cell_set_dirty (GTK_TREE_VIEW_COLUMN (list->data), TRUE); break; } } gtk_widget_queue_resize (GTK_WIDGET (tree_view)); } else { gtk_widget_queue_draw (GTK_WIDGET (tree_view)); } done: if (free_path) gtk_tree_path_free (path); } static void check_selection_helper (GtkTreeRBTree *tree, GtkTreeRBNode *node, gpointer data) { gint *value = (gint *)data; *value |= GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_SELECTED); if (node->children && !*value) gtk_tree_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, check_selection_helper, data); } static void gtk_tree_view_row_deleted (GtkTreeModel *model, GtkTreePath *path, gpointer data) { GtkTreeView *tree_view = (GtkTreeView *)data; GtkTreeRBTree *tree; GtkTreeRBNode *node; GList *list; gboolean selection_changed = FALSE, cursor_changed = FALSE; GtkTreeRBTree *cursor_tree = NULL; GtkTreeRBNode *cursor_node = NULL; g_return_if_fail (path != NULL); gtk_tree_row_reference_deleted (G_OBJECT (data), path); if (_gtk_tree_view_find_node (tree_view, path, &tree, &node)) return; if (tree == NULL) return; /* check if the selection has been changed */ gtk_tree_rbtree_traverse (tree, node, G_POST_ORDER, check_selection_helper, &selection_changed); for (list = tree_view->columns; list; list = list->next) if (gtk_tree_view_column_get_visible (GTK_TREE_VIEW_COLUMN (list->data)) && gtk_tree_view_column_get_sizing (GTK_TREE_VIEW_COLUMN (list->data)) == GTK_TREE_VIEW_COLUMN_AUTOSIZE) _gtk_tree_view_column_cell_set_dirty ((GtkTreeViewColumn *)list->data, TRUE); /* Ensure we don't have a dangling pointer to a dead node */ ensure_unprelighted (tree_view); /* Cancel editting if we've started */ gtk_tree_view_stop_editing (tree_view, TRUE); /* If the cursor row got deleted, move the cursor to the next row */ if (tree_view->cursor_node && (tree_view->cursor_node == node || (node->children && (tree_view->cursor_tree == node->children || gtk_tree_rbtree_contains (node->children, tree_view->cursor_tree))))) { GtkTreePath *cursor_path; cursor_tree = tree; cursor_node = gtk_tree_rbtree_next (tree, node); /* find the first node that is not going to be deleted */ while (cursor_node == NULL && cursor_tree->parent_tree) { cursor_node = gtk_tree_rbtree_next (cursor_tree->parent_tree, cursor_tree->parent_node); cursor_tree = cursor_tree->parent_tree; } if (cursor_node != NULL) cursor_path = _gtk_tree_path_new_from_rbtree (cursor_tree, cursor_node); else cursor_path = NULL; if (cursor_path == NULL || ! search_first_focusable_path (tree_view, &cursor_path, TRUE, &cursor_tree, &cursor_node)) { /* It looks like we reached the end of the view without finding * a focusable row. We will step backwards to find the last * focusable row. */ gtk_tree_rbtree_prev_full (tree, node, &cursor_tree, &cursor_node); if (cursor_node) { cursor_path = _gtk_tree_path_new_from_rbtree (cursor_tree, cursor_node); if (! search_first_focusable_path (tree_view, &cursor_path, FALSE, &cursor_tree, &cursor_node)) cursor_node = NULL; gtk_tree_path_free (cursor_path); } } else if (cursor_path) gtk_tree_path_free (cursor_path); cursor_changed = TRUE; } if (tree->root->count == 1) { if (tree_view->tree == tree) tree_view->tree = NULL; _gtk_tree_view_accessible_remove_state (tree_view, tree->parent_tree, tree->parent_node, GTK_CELL_RENDERER_EXPANDED); _gtk_tree_view_accessible_remove (tree_view, tree, NULL); gtk_tree_rbtree_remove (tree); } else { _gtk_tree_view_accessible_remove (tree_view, tree, node); gtk_tree_rbtree_remove_node (tree, node); } if (! gtk_tree_row_reference_valid (tree_view->top_row)) { gtk_tree_row_reference_free (tree_view->top_row); tree_view->top_row = NULL; } install_scroll_sync_handler (tree_view); gtk_widget_queue_resize (GTK_WIDGET (tree_view)); if (cursor_changed) { if (cursor_node) { GtkTreePath *cursor_path = _gtk_tree_path_new_from_rbtree (cursor_tree, cursor_node); gtk_tree_view_real_set_cursor (tree_view, cursor_path, CLEAR_AND_SELECT | CURSOR_INVALID); gtk_tree_path_free (cursor_path); } else gtk_tree_view_real_set_cursor (tree_view, NULL, CLEAR_AND_SELECT | CURSOR_INVALID); } if (selection_changed) g_signal_emit_by_name (tree_view->selection, "changed"); } static void gtk_tree_view_rows_reordered (GtkTreeModel *model, GtkTreePath *parent, GtkTreeIter *iter, gint *new_order, gpointer data) { GtkTreeView *tree_view = GTK_TREE_VIEW (data); GtkTreeRBTree *tree; GtkTreeRBNode *node; gint len; len = gtk_tree_model_iter_n_children (model, iter); if (len < 2) return; gtk_tree_row_reference_reordered (G_OBJECT (data), parent, iter, new_order); if (_gtk_tree_view_find_node (tree_view, parent, &tree, &node)) return; /* We need to special case the parent path */ if (tree == NULL) tree = tree_view->tree; else tree = node->children; if (tree == NULL) return; if (tree_view->edited_column) gtk_tree_view_stop_editing (tree_view, TRUE); /* we need to be unprelighted */ ensure_unprelighted (tree_view); gtk_tree_rbtree_reorder (tree, new_order, len); _gtk_tree_view_accessible_reorder (tree_view); gtk_widget_queue_draw (GTK_WIDGET (tree_view)); gtk_tree_view_dy_to_top_row (tree_view); } /* Internal tree functions */ static void gtk_tree_view_get_background_xrange (GtkTreeView *tree_view, GtkTreeRBTree *tree, GtkTreeViewColumn *column, gint *x1, gint *x2) { GtkTreeViewColumn *tmp_column = NULL; gint total_width; GList *list; gboolean rtl; if (x1) *x1 = 0; if (x2) *x2 = 0; rtl = (_gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL); total_width = 0; for (list = (rtl ? g_list_last (tree_view->columns) : g_list_first (tree_view->columns)); list; list = (rtl ? list->prev : list->next)) { tmp_column = list->data; if (tmp_column == column) break; if (gtk_tree_view_column_get_visible (tmp_column)) total_width += gtk_tree_view_column_get_width (tmp_column); } if (tmp_column != column) { g_warning (G_STRLOC": passed-in column isn't in the tree"); return; } if (x1) *x1 = total_width; if (x2) { if (gtk_tree_view_column_get_visible (column)) *x2 = total_width + gtk_tree_view_column_get_width (column); else *x2 = total_width; /* width of 0 */ } } static void gtk_tree_view_get_arrow_xrange (GtkTreeView *tree_view, GtkTreeRBTree *tree, gint *x1, gint *x2) { gint x_offset = 0; GList *list; GtkTreeViewColumn *tmp_column = NULL; gint total_width; gint expander_size, expander_render_size; gboolean rtl; rtl = (_gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL); expander_size = gtk_tree_view_get_expander_size (tree_view); expander_render_size = expander_size - (_TREE_VIEW_HORIZONTAL_SEPARATOR / 2); total_width = 0; for (list = (rtl ? g_list_last (tree_view->columns) : g_list_first (tree_view->columns)); list; list = (rtl ? list->prev : list->next)) { tmp_column = list->data; if (gtk_tree_view_is_expander_column (tree_view, tmp_column)) { if (rtl) x_offset = total_width + gtk_tree_view_column_get_width (tmp_column) - expander_size; else x_offset = total_width; break; } if (gtk_tree_view_column_get_visible (tmp_column)) total_width += gtk_tree_view_column_get_width (tmp_column); } x_offset += (expander_size - expander_render_size); if (rtl) x_offset -= expander_size * gtk_tree_rbtree_get_depth (tree); else x_offset += expander_size * gtk_tree_rbtree_get_depth (tree); *x1 = x_offset; if (tmp_column && gtk_tree_view_column_get_visible (tmp_column)) /* +1 because x2 isn't included in the range. */ *x2 = *x1 + expander_render_size + 1; else *x2 = *x1; } static void gtk_tree_view_build_tree (GtkTreeView *tree_view, GtkTreeRBTree *tree, GtkTreeIter *iter, gint depth, gboolean recurse) { GtkTreeRBNode *temp = NULL; GtkTreePath *path = NULL; do { gtk_tree_model_ref_node (tree_view->model, iter); temp = gtk_tree_rbtree_insert_after (tree, temp, 0, FALSE); if (tree_view->fixed_height > 0) { if (GTK_TREE_RBNODE_FLAG_SET (temp, GTK_TREE_RBNODE_INVALID)) { gtk_tree_rbtree_node_set_height (tree, temp, tree_view->fixed_height); gtk_tree_rbtree_node_mark_valid (tree, temp); } } if (tree_view->is_list) continue; if (recurse) { GtkTreeIter child; if (!path) path = gtk_tree_model_get_path (tree_view->model, iter); else gtk_tree_path_next (path); if (gtk_tree_model_iter_children (tree_view->model, &child, iter)) { gboolean expand; g_signal_emit (tree_view, tree_view_signals[TEST_EXPAND_ROW], 0, iter, path, &expand); if (gtk_tree_model_iter_has_child (tree_view->model, iter) && !expand) { temp->children = gtk_tree_rbtree_new (); temp->children->parent_tree = tree; temp->children->parent_node = temp; gtk_tree_view_build_tree (tree_view, temp->children, &child, depth + 1, recurse); } } } if (gtk_tree_model_iter_has_child (tree_view->model, iter)) { if ((temp->flags>K_TREE_RBNODE_IS_PARENT) != GTK_TREE_RBNODE_IS_PARENT) temp->flags ^= GTK_TREE_RBNODE_IS_PARENT; } } while (gtk_tree_model_iter_next (tree_view->model, iter)); if (path) gtk_tree_path_free (path); } /* Make sure the node is visible vertically */ static void gtk_tree_view_clamp_node_visible (GtkTreeView *tree_view, GtkTreeRBTree *tree, GtkTreeRBNode *node) { gint node_dy, height; GtkTreePath *path = NULL; if (!gtk_widget_get_realized (GTK_WIDGET (tree_view))) return; /* just return if the node is visible, avoiding a costly expose */ node_dy = gtk_tree_rbtree_node_find_offset (tree, node); height = gtk_tree_view_get_row_height (tree_view, node); if (! GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_INVALID) && node_dy >= gtk_adjustment_get_value (tree_view->vadjustment) && node_dy + height <= (gtk_adjustment_get_value (tree_view->vadjustment) + gtk_adjustment_get_page_size (tree_view->vadjustment))) return; path = _gtk_tree_path_new_from_rbtree (tree, node); if (path) { gtk_tree_view_scroll_to_cell (tree_view, path, NULL, FALSE, 0.0, 0.0); gtk_tree_path_free (path); } } static void gtk_tree_view_clamp_column_visible (GtkTreeView *tree_view, GtkTreeViewColumn *column, gboolean focus_to_cell) { GtkAllocation allocation; gint x, width; if (column == NULL) return; gtk_widget_get_allocation (gtk_tree_view_column_get_button (column), &allocation); x = allocation.x; width = allocation.width; if (width > gtk_adjustment_get_page_size (tree_view->hadjustment)) { /* The column is larger than the horizontal page size. If the * column has cells which can be focused individually, then we make * sure the cell which gets focus is fully visible (if even the * focus cell is bigger than the page size, we make sure the * left-hand side of the cell is visible). * * If the column does not have an activatable cell, we * make sure the left-hand side of the column is visible. */ if (focus_to_cell && gtk_tree_view_has_can_focus_cell (tree_view)) { GtkCellArea *cell_area; GtkCellRenderer *focus_cell; cell_area = gtk_cell_layout_get_area (GTK_CELL_LAYOUT (column)); focus_cell = gtk_cell_area_get_focus_cell (cell_area); if (gtk_tree_view_column_cell_get_position (column, focus_cell, &x, &width)) { if (width < gtk_adjustment_get_page_size (tree_view->hadjustment)) { if (gtk_adjustment_get_value (tree_view->hadjustment) + gtk_adjustment_get_page_size (tree_view->hadjustment) < x + width) gtk_adjustment_set_value (tree_view->hadjustment, x + width - gtk_adjustment_get_page_size (tree_view->hadjustment)); else if (gtk_adjustment_get_value (tree_view->hadjustment) > x) gtk_adjustment_set_value (tree_view->hadjustment, x); } } } gtk_adjustment_set_value (tree_view->hadjustment, x); } else { if ((gtk_adjustment_get_value (tree_view->hadjustment) + gtk_adjustment_get_page_size (tree_view->hadjustment)) < (x + width)) gtk_adjustment_set_value (tree_view->hadjustment, x + width - gtk_adjustment_get_page_size (tree_view->hadjustment)); else if (gtk_adjustment_get_value (tree_view->hadjustment) > x) gtk_adjustment_set_value (tree_view->hadjustment, x); } } /* This function could be more efficient. I'll optimize it if profiling seems * to imply that it is important */ GtkTreePath * _gtk_tree_path_new_from_rbtree (GtkTreeRBTree *tree, GtkTreeRBNode *node) { GtkTreePath *path; GtkTreeRBTree *tmp_tree; GtkTreeRBNode *tmp_node, *last; gint count; path = gtk_tree_path_new (); g_return_val_if_fail (node != NULL, path); count = 1 + node->left->count; last = node; tmp_node = node->parent; tmp_tree = tree; while (tmp_tree) { while (!gtk_tree_rbtree_is_nil (tmp_node)) { if (tmp_node->right == last) count += 1 + tmp_node->left->count; last = tmp_node; tmp_node = tmp_node->parent; } gtk_tree_path_prepend_index (path, count - 1); last = tmp_tree->parent_node; tmp_tree = tmp_tree->parent_tree; if (last) { count = 1 + last->left->count; tmp_node = last->parent; } } return path; } /* Returns TRUE if we ran out of tree before finding the path. If the path is * invalid (ie. points to a node that’s not in the tree), *tree and *node are * both set to NULL. */ gboolean _gtk_tree_view_find_node (GtkTreeView *tree_view, GtkTreePath *path, GtkTreeRBTree **tree, GtkTreeRBNode **node) { GtkTreeRBNode *tmpnode = NULL; GtkTreeRBTree *tmptree = tree_view->tree; gint *indices = gtk_tree_path_get_indices (path); gint depth = gtk_tree_path_get_depth (path); gint i = 0; *node = NULL; *tree = NULL; if (depth == 0 || tmptree == NULL) return FALSE; do { tmpnode = gtk_tree_rbtree_find_count (tmptree, indices[i] + 1); ++i; if (tmpnode == NULL) { *tree = NULL; *node = NULL; return FALSE; } if (i >= depth) { *tree = tmptree; *node = tmpnode; return FALSE; } *tree = tmptree; *node = tmpnode; tmptree = tmpnode->children; if (tmptree == NULL) return TRUE; } while (1); } static gboolean gtk_tree_view_is_expander_column (GtkTreeView *tree_view, GtkTreeViewColumn *column) { GList *list; if (tree_view->is_list) return FALSE; if (tree_view->expander_column != NULL) { if (tree_view->expander_column == column) return TRUE; return FALSE; } else { for (list = tree_view->columns; list; list = list->next) if (gtk_tree_view_column_get_visible (GTK_TREE_VIEW_COLUMN (list->data))) break; if (list && list->data == column) return TRUE; } return FALSE; } static inline gboolean gtk_tree_view_draw_expanders (GtkTreeView *tree_view) { if (!tree_view->is_list && tree_view->show_expanders) return TRUE; /* else */ return FALSE; } static void gtk_tree_view_add_move_binding (GtkBindingSet *binding_set, guint keyval, guint modmask, gboolean add_shifted_binding, GtkMovementStep step, gint count) { gtk_binding_entry_add_signal (binding_set, keyval, modmask, "move-cursor", 2, G_TYPE_ENUM, step, G_TYPE_INT, count); if (add_shifted_binding) gtk_binding_entry_add_signal (binding_set, keyval, GDK_SHIFT_MASK, "move-cursor", 2, G_TYPE_ENUM, step, G_TYPE_INT, count); if ((modmask & GDK_CONTROL_MASK) == GDK_CONTROL_MASK) return; gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK | GDK_SHIFT_MASK, "move-cursor", 2, G_TYPE_ENUM, step, G_TYPE_INT, count); gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK, "move-cursor", 2, G_TYPE_ENUM, step, G_TYPE_INT, count); } static gint gtk_tree_view_unref_tree_helper (GtkTreeModel *model, GtkTreeIter *iter, GtkTreeRBTree *tree, GtkTreeRBNode *node) { gint retval = FALSE; do { g_return_val_if_fail (node != NULL, FALSE); if (node->children) { GtkTreeIter child; GtkTreeRBTree *new_tree; GtkTreeRBNode *new_node; new_tree = node->children; new_node = gtk_tree_rbtree_first (new_tree); if (!gtk_tree_model_iter_children (model, &child, iter)) return FALSE; retval = gtk_tree_view_unref_tree_helper (model, &child, new_tree, new_node) | retval; } if (GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_SELECTED)) retval = TRUE; gtk_tree_model_unref_node (model, iter); node = gtk_tree_rbtree_next (tree, node); } while (gtk_tree_model_iter_next (model, iter)); return retval; } static gint gtk_tree_view_unref_and_check_selection_tree (GtkTreeView *tree_view, GtkTreeRBTree *tree) { GtkTreeIter iter; GtkTreePath *path; GtkTreeRBNode *node; gint retval; if (!tree) return FALSE; node = gtk_tree_rbtree_first (tree); g_return_val_if_fail (node != NULL, FALSE); path = _gtk_tree_path_new_from_rbtree (tree, node); gtk_tree_model_get_iter (GTK_TREE_MODEL (tree_view->model), &iter, path); retval = gtk_tree_view_unref_tree_helper (GTK_TREE_MODEL (tree_view->model), &iter, tree, node); gtk_tree_path_free (path); return retval; } static void gtk_tree_view_set_column_drag_info (GtkTreeView *tree_view, GtkTreeViewColumn *column) { GtkTreeViewColumn *left_column; GtkTreeViewColumn *cur_column = NULL; GtkTreeViewColumnReorder *reorder; gboolean rtl; GList *tmp_list; gint left; /* We want to precalculate the motion list such that we know what column slots * are available. */ left_column = NULL; rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL); /* First, identify all possible drop spots */ if (rtl) tmp_list = g_list_last (tree_view->columns); else tmp_list = g_list_first (tree_view->columns); while (tmp_list) { cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data); tmp_list = rtl ? tmp_list->prev : tmp_list->next; if (gtk_tree_view_column_get_visible (cur_column) == FALSE) continue; /* If it's not the column moving and func tells us to skip over the column, we continue. */ if (left_column != column && cur_column != column && tree_view->column_drop_func && ! tree_view->column_drop_func (tree_view, column, left_column, cur_column, tree_view->column_drop_func_data)) { left_column = cur_column; continue; } reorder = g_slice_new0 (GtkTreeViewColumnReorder); reorder->left_column = left_column; left_column = reorder->right_column = cur_column; tree_view->column_drag_info = g_list_append (tree_view->column_drag_info, reorder); } /* Add the last one */ if (tree_view->column_drop_func == NULL || ((left_column != column) && tree_view->column_drop_func (tree_view, column, left_column, NULL, tree_view->column_drop_func_data))) { reorder = g_slice_new0 (GtkTreeViewColumnReorder); reorder->left_column = left_column; reorder->right_column = NULL; tree_view->column_drag_info = g_list_append (tree_view->column_drag_info, reorder); } /* We quickly check to see if it even makes sense to reorder columns. */ /* If there is nothing that can be moved, then we return */ if (tree_view->column_drag_info == NULL) return; /* We know there are always 2 slots possbile, as you can always return column. */ /* If that's all there is, return */ if (tree_view->column_drag_info->next == NULL || (tree_view->column_drag_info->next->next == NULL && ((GtkTreeViewColumnReorder *)tree_view->column_drag_info->data)->right_column == column && ((GtkTreeViewColumnReorder *)tree_view->column_drag_info->next->data)->left_column == column)) { for (tmp_list = tree_view->column_drag_info; tmp_list; tmp_list = tmp_list->next) g_slice_free (GtkTreeViewColumnReorder, tmp_list->data); g_list_free (tree_view->column_drag_info); tree_view->column_drag_info = NULL; return; } /* We fill in the ranges for the columns, now that we've isolated them */ left = - TREE_VIEW_COLUMN_DRAG_DEAD_MULTIPLIER (tree_view); for (tmp_list = tree_view->column_drag_info; tmp_list; tmp_list = tmp_list->next) { reorder = (GtkTreeViewColumnReorder *) tmp_list->data; reorder->left_align = left; if (tmp_list->next != NULL) { GtkAllocation right_allocation, left_allocation; GtkWidget *left_button, *right_button; g_assert (tmp_list->next->data); right_button = gtk_tree_view_column_get_button (reorder->right_column); left_button = gtk_tree_view_column_get_button (((GtkTreeViewColumnReorder *)tmp_list->next->data)->left_column); gtk_widget_get_allocation (right_button, &right_allocation); gtk_widget_get_allocation (left_button, &left_allocation); left = reorder->right_align = (right_allocation.x + right_allocation.width + left_allocation.x) / 2; } else { reorder->right_align = gtk_widget_get_allocated_width (GTK_WIDGET (tree_view)) + TREE_VIEW_COLUMN_DRAG_DEAD_MULTIPLIER (tree_view); } } } void _gtk_tree_view_column_start_drag (GtkTreeView *tree_view, GtkTreeViewColumn *column, GdkDevice *device) { GtkAllocation button_allocation; GtkWidget *button; GtkStyleContext *context; g_return_if_fail (tree_view->column_drag_info == NULL); g_return_if_fail (tree_view->cur_reorder == NULL); gtk_tree_view_set_column_drag_info (tree_view, column); if (tree_view->column_drag_info == NULL) return; button = gtk_tree_view_column_get_button (column); context = gtk_widget_get_style_context (button); gtk_style_context_add_class (context, GTK_STYLE_CLASS_DND); gtk_widget_get_allocation (button, &button_allocation); tree_view->drag_column_x = button_allocation.x; tree_view->drag_column_y = button_allocation.y; tree_view->drag_column = column; gtk_widget_grab_focus (GTK_WIDGET (tree_view)); tree_view->in_column_drag = TRUE; gtk_gesture_set_state (tree_view->column_drag_gesture, GTK_EVENT_SEQUENCE_CLAIMED); } static inline gint gtk_tree_view_get_effective_header_height (GtkTreeView *tree_view) { if (tree_view->headers_visible) return tree_view->header_height; else return 0; } void _gtk_tree_view_get_row_separator_func (GtkTreeView *tree_view, GtkTreeViewRowSeparatorFunc *func, gpointer *data) { *func = tree_view->row_separator_func; *data = tree_view->row_separator_data; } GtkTreePath * _gtk_tree_view_get_anchor_path (GtkTreeView *tree_view) { if (tree_view->anchor) return gtk_tree_row_reference_get_path (tree_view->anchor); return NULL; } void _gtk_tree_view_set_anchor_path (GtkTreeView *tree_view, GtkTreePath *anchor_path) { if (tree_view->anchor) { gtk_tree_row_reference_free (tree_view->anchor); tree_view->anchor = NULL; } if (anchor_path && tree_view->model) tree_view->anchor = gtk_tree_row_reference_new (tree_view->model, anchor_path); } GtkTreeRBTree * _gtk_tree_view_get_rbtree (GtkTreeView *tree_view) { return tree_view->tree; } gboolean _gtk_tree_view_get_cursor_node (GtkTreeView *tree_view, GtkTreeRBTree **tree, GtkTreeRBNode **node) { if (tree_view->cursor_node == NULL) return FALSE; *tree = tree_view->cursor_tree; *node = tree_view->cursor_node; return TRUE; } GtkTreeViewColumn * _gtk_tree_view_get_focus_column (GtkTreeView *tree_view) { return tree_view->focus_column; } void _gtk_tree_view_set_focus_column (GtkTreeView *tree_view, GtkTreeViewColumn *column) { GtkTreeViewColumn *old_column = tree_view->focus_column; if (old_column == column) return; tree_view->focus_column = column; _gtk_tree_view_accessible_update_focus_column (tree_view, old_column, column); } /* x and y are the mouse position */ static void gtk_tree_view_snapshot_arrow (GtkTreeView *tree_view, GtkSnapshot *snapshot, GtkTreeRBTree *tree, GtkTreeRBNode *node) { GdkRectangle area; GtkStateFlags state = 0; GtkStyleContext *context; GtkWidget *widget; gint x_offset = 0; gint x2; GtkCellRendererState flags = 0; widget = GTK_WIDGET (tree_view); context = gtk_widget_get_style_context (widget); if (! GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_PARENT)) return; gtk_tree_view_get_arrow_xrange (tree_view, tree, &x_offset, &x2); area.x = x_offset; area.y = gtk_tree_view_get_cell_area_y_offset (tree_view, tree, node); area.width = x2 - x_offset; area.height = gtk_tree_view_get_cell_area_height (tree_view, node); if (GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_SELECTED)) flags |= GTK_CELL_RENDERER_SELECTED; if (node == tree_view->prelight_node && tree_view->arrow_prelit) flags |= GTK_CELL_RENDERER_PRELIT; state = gtk_cell_renderer_get_state (NULL, widget, flags); if (node->children != NULL) state |= GTK_STATE_FLAG_CHECKED; else state &= ~(GTK_STATE_FLAG_CHECKED); gtk_style_context_save (context); gtk_style_context_set_state (context, state); gtk_style_context_add_class (context, GTK_STYLE_CLASS_EXPANDER); gtk_snapshot_save (snapshot); gtk_snapshot_translate (snapshot, &GRAPHENE_POINT_INIT (area.x, area.y)); gtk_css_style_snapshot_icon (gtk_style_context_lookup_style (context), snapshot, area.width, area.height); gtk_snapshot_restore (snapshot); gtk_style_context_restore (context); } static void gtk_tree_view_focus_to_cursor (GtkTreeView *tree_view) { GtkTreePath *cursor_path; if ((tree_view->tree == NULL) || (! gtk_widget_get_realized (GTK_WIDGET (tree_view)))) return; cursor_path = NULL; if (tree_view->cursor_node) cursor_path = _gtk_tree_path_new_from_rbtree (tree_view->cursor_tree, tree_view->cursor_node); if (cursor_path == NULL) { /* Consult the selection before defaulting to the * first focusable element */ GList *selected_rows; GtkTreeModel *model; GtkTreeSelection *selection; selection = gtk_tree_view_get_selection (tree_view); selected_rows = gtk_tree_selection_get_selected_rows (selection, &model); if (selected_rows) { cursor_path = gtk_tree_path_copy((const GtkTreePath *)(selected_rows->data)); g_list_free_full (selected_rows, (GDestroyNotify) gtk_tree_path_free); } else { cursor_path = gtk_tree_path_new_first (); search_first_focusable_path (tree_view, &cursor_path, TRUE, NULL, NULL); } if (cursor_path) { if (gtk_tree_selection_get_mode (tree_view->selection) == GTK_SELECTION_MULTIPLE) gtk_tree_view_real_set_cursor (tree_view, cursor_path, 0); else gtk_tree_view_real_set_cursor (tree_view, cursor_path, CLEAR_AND_SELECT); } } if (cursor_path) { tree_view->draw_keyfocus = TRUE; gtk_widget_queue_draw (GTK_WIDGET (tree_view)); gtk_tree_path_free (cursor_path); if (tree_view->focus_column == NULL) { GList *list; for (list = tree_view->columns; list; list = list->next) { if (gtk_tree_view_column_get_visible (GTK_TREE_VIEW_COLUMN (list->data))) { GtkCellArea *cell_area; _gtk_tree_view_set_focus_column (tree_view, GTK_TREE_VIEW_COLUMN (list->data)); /* This happens when the treeview initially grabs focus and there * is no column in focus, here we explicitly focus into the first cell */ cell_area = gtk_cell_layout_get_area (GTK_CELL_LAYOUT (tree_view->focus_column)); if (!gtk_cell_area_get_focus_cell (cell_area)) { gboolean rtl; rtl = (_gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL); gtk_cell_area_focus (cell_area, rtl ? GTK_DIR_LEFT : GTK_DIR_RIGHT); } break; } } } } } static void gtk_tree_view_move_cursor_up_down (GtkTreeView *tree_view, gint count) { gint selection_count; GtkTreeRBTree *new_cursor_tree = NULL; GtkTreeRBNode *new_cursor_node = NULL; GtkTreePath *cursor_path = NULL; gboolean selectable; GtkDirectionType direction; GtkCellArea *cell_area = NULL; GtkCellRenderer *last_focus_cell = NULL; GtkTreeIter iter; if (tree_view->cursor_node == NULL) return; cursor_path = _gtk_tree_path_new_from_rbtree (tree_view->cursor_tree, tree_view->cursor_node); direction = count < 0 ? GTK_DIR_UP : GTK_DIR_DOWN; if (tree_view->focus_column) cell_area = gtk_cell_layout_get_area (GTK_CELL_LAYOUT (tree_view->focus_column)); /* If focus stays in the area for this row, then just return for this round */ if (cell_area && (count == -1 || count == 1) && gtk_tree_model_get_iter (tree_view->model, &iter, cursor_path)) { gtk_tree_view_column_cell_set_cell_data (tree_view->focus_column, tree_view->model, &iter, GTK_TREE_RBNODE_FLAG_SET (tree_view->cursor_node, GTK_TREE_RBNODE_IS_PARENT), tree_view->cursor_node->children ? TRUE : FALSE); /* Save the last cell that had focus, if we hit the end of the view we'll give * focus back to it. */ last_focus_cell = gtk_cell_area_get_focus_cell (cell_area); /* If focus stays in the area, no need to change the cursor row */ if (gtk_cell_area_focus (cell_area, direction)) return; } selection_count = gtk_tree_selection_count_selected_rows (tree_view->selection); selectable = _gtk_tree_selection_row_is_selectable (tree_view->selection, tree_view->cursor_node, cursor_path); if (selection_count == 0 && gtk_tree_selection_get_mode (tree_view->selection) != GTK_SELECTION_NONE && !tree_view->modify_selection_pressed && selectable) { /* Don't move the cursor, but just select the current node */ new_cursor_tree = tree_view->cursor_tree; new_cursor_node = tree_view->cursor_node; } else { if (count == -1) gtk_tree_rbtree_prev_full (tree_view->cursor_tree, tree_view->cursor_node, &new_cursor_tree, &new_cursor_node); else gtk_tree_rbtree_next_full (tree_view->cursor_tree, tree_view->cursor_node, &new_cursor_tree, &new_cursor_node); } gtk_tree_path_free (cursor_path); if (new_cursor_node) { cursor_path = _gtk_tree_path_new_from_rbtree (new_cursor_tree, new_cursor_node); search_first_focusable_path (tree_view, &cursor_path, (count != -1), &new_cursor_tree, &new_cursor_node); if (cursor_path) gtk_tree_path_free (cursor_path); } /* * If the list has only one item and multi-selection is set then select * the row (if not yet selected). */ if (gtk_tree_selection_get_mode (tree_view->selection) == GTK_SELECTION_MULTIPLE && new_cursor_node == NULL) { if (count == -1) gtk_tree_rbtree_next_full (tree_view->cursor_tree, tree_view->cursor_node, &new_cursor_tree, &new_cursor_node); else gtk_tree_rbtree_prev_full (tree_view->cursor_tree, tree_view->cursor_node, &new_cursor_tree, &new_cursor_node); if (new_cursor_node == NULL && !GTK_TREE_RBNODE_FLAG_SET (tree_view->cursor_node, GTK_TREE_RBNODE_IS_SELECTED)) { new_cursor_node = tree_view->cursor_node; new_cursor_tree = tree_view->cursor_tree; } else { new_cursor_tree = NULL; new_cursor_node = NULL; } } if (new_cursor_node) { cursor_path = _gtk_tree_path_new_from_rbtree (new_cursor_tree, new_cursor_node); gtk_tree_view_real_set_cursor (tree_view, cursor_path, CLEAR_AND_SELECT | CLAMP_NODE); gtk_tree_path_free (cursor_path); /* Give focus to the area in the new row */ if (cell_area) gtk_cell_area_focus (cell_area, direction); } else { gtk_tree_view_clamp_node_visible (tree_view, tree_view->cursor_tree, tree_view->cursor_node); if (!tree_view->extend_selection_pressed) { if (! gtk_widget_keynav_failed (GTK_WIDGET (tree_view), count < 0 ? GTK_DIR_UP : GTK_DIR_DOWN)) { GtkWidget *toplevel = GTK_WIDGET (gtk_widget_get_root (GTK_WIDGET (tree_view))); if (toplevel) gtk_widget_child_focus (toplevel, count < 0 ? GTK_DIR_TAB_BACKWARD : GTK_DIR_TAB_FORWARD); } } else { gtk_widget_error_bell (GTK_WIDGET (tree_view)); } if (cell_area) gtk_cell_area_set_focus_cell (cell_area, last_focus_cell); } } static void gtk_tree_view_move_cursor_page_up_down (GtkTreeView *tree_view, gint count) { GtkTreePath *old_cursor_path = NULL; GtkTreePath *cursor_path = NULL; GtkTreeRBTree *start_cursor_tree = NULL; GtkTreeRBNode *start_cursor_node = NULL; GtkTreeRBTree *cursor_tree; GtkTreeRBNode *cursor_node; gint y; gint window_y; if (!gtk_widget_has_focus (GTK_WIDGET (tree_view))) return; if (tree_view->cursor_node == NULL) return; old_cursor_path = _gtk_tree_path_new_from_rbtree (tree_view->cursor_tree, tree_view->cursor_node); y = gtk_tree_rbtree_node_find_offset (tree_view->cursor_tree, tree_view->cursor_node); window_y = RBTREE_Y_TO_TREE_WINDOW_Y (tree_view, y); y += tree_view->cursor_offset; y += count * (int)gtk_adjustment_get_page_increment (tree_view->vadjustment); y = CLAMP (y, (gint)gtk_adjustment_get_lower (tree_view->vadjustment), (gint)gtk_adjustment_get_upper (tree_view->vadjustment)); if (y >= gtk_tree_view_get_height (tree_view)) y = gtk_tree_view_get_height (tree_view) - 1; tree_view->cursor_offset = gtk_tree_rbtree_find_offset (tree_view->tree, y, &cursor_tree, &cursor_node); if (cursor_tree == NULL) { /* FIXME: we lost the cursor. Should we try to get one? */ gtk_tree_path_free (old_cursor_path); return; } if (tree_view->cursor_offset > gtk_tree_view_get_row_height (tree_view, cursor_node)) { gtk_tree_rbtree_next_full (cursor_tree, cursor_node, &cursor_tree, &cursor_node); tree_view->cursor_offset -= gtk_tree_view_get_row_height (tree_view, cursor_node); } y -= tree_view->cursor_offset; cursor_path = _gtk_tree_path_new_from_rbtree (cursor_tree, cursor_node); start_cursor_tree = cursor_tree; start_cursor_node = cursor_node; if (! search_first_focusable_path (tree_view, &cursor_path, (count != -1), &cursor_tree, &cursor_node)) { /* It looks like we reached the end of the view without finding * a focusable row. We will step backwards to find the last * focusable row. */ cursor_tree = start_cursor_tree; cursor_node = start_cursor_node; cursor_path = _gtk_tree_path_new_from_rbtree (cursor_tree, cursor_node); search_first_focusable_path (tree_view, &cursor_path, (count == -1), &cursor_tree, &cursor_node); } if (!cursor_path) goto cleanup; /* update y */ y = gtk_tree_rbtree_node_find_offset (cursor_tree, cursor_node); gtk_tree_view_real_set_cursor (tree_view, cursor_path, CLEAR_AND_SELECT); y -= window_y; gtk_tree_view_scroll_to_point (tree_view, -1, y); gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node); gtk_widget_queue_draw (GTK_WIDGET (tree_view)); if (!gtk_tree_path_compare (old_cursor_path, cursor_path)) gtk_widget_error_bell (GTK_WIDGET (tree_view)); gtk_widget_grab_focus (GTK_WIDGET (tree_view)); cleanup: gtk_tree_path_free (old_cursor_path); gtk_tree_path_free (cursor_path); } static void gtk_tree_view_move_cursor_left_right (GtkTreeView *tree_view, gint count) { GtkTreePath *cursor_path = NULL; GtkTreeViewColumn *column; GtkTreeIter iter; GList *list; gboolean found_column = FALSE; gboolean rtl; GtkDirectionType direction; GtkCellArea *cell_area; GtkCellRenderer *last_focus_cell = NULL; GtkCellArea *last_focus_area = NULL; rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL); if (!gtk_widget_has_focus (GTK_WIDGET (tree_view))) return; if (tree_view->cursor_node == NULL) return; cursor_path = _gtk_tree_path_new_from_rbtree (tree_view->cursor_tree, tree_view->cursor_node); if (gtk_tree_model_get_iter (tree_view->model, &iter, cursor_path) == FALSE) { gtk_tree_path_free (cursor_path); return; } gtk_tree_path_free (cursor_path); list = rtl ? g_list_last (tree_view->columns) : g_list_first (tree_view->columns); if (tree_view->focus_column) { /* Save the cell/area we are moving focus from, if moving the cursor * by one step hits the end we'll set focus back here */ last_focus_area = gtk_cell_layout_get_area (GTK_CELL_LAYOUT (tree_view->focus_column)); last_focus_cell = gtk_cell_area_get_focus_cell (last_focus_area); for (; list; list = (rtl ? list->prev : list->next)) { if (list->data == tree_view->focus_column) break; } } direction = count > 0 ? GTK_DIR_RIGHT : GTK_DIR_LEFT; while (list) { column = list->data; if (gtk_tree_view_column_get_visible (column) == FALSE) goto loop_end; gtk_tree_view_column_cell_set_cell_data (column, tree_view->model, &iter, GTK_TREE_RBNODE_FLAG_SET (tree_view->cursor_node, GTK_TREE_RBNODE_IS_PARENT), tree_view->cursor_node->children ? TRUE : FALSE); cell_area = gtk_cell_layout_get_area (GTK_CELL_LAYOUT (column)); if (gtk_cell_area_focus (cell_area, direction)) { _gtk_tree_view_set_focus_column (tree_view, column); found_column = TRUE; break; } loop_end: if (count == 1) list = rtl ? list->prev : list->next; else list = rtl ? list->next : list->prev; } if (found_column) { if (!gtk_tree_view_has_can_focus_cell (tree_view)) gtk_widget_queue_draw (GTK_WIDGET (tree_view)); g_signal_emit (tree_view, tree_view_signals[CURSOR_CHANGED], 0); gtk_widget_grab_focus (GTK_WIDGET (tree_view)); } else { gtk_widget_error_bell (GTK_WIDGET (tree_view)); if (last_focus_area) gtk_cell_area_set_focus_cell (last_focus_area, last_focus_cell); } gtk_tree_view_clamp_column_visible (tree_view, tree_view->focus_column, TRUE); } static void gtk_tree_view_move_cursor_start_end (GtkTreeView *tree_view, gint count) { GtkTreeRBTree *cursor_tree; GtkTreeRBNode *cursor_node; GtkTreePath *path; GtkTreePath *old_path; if (!gtk_widget_has_focus (GTK_WIDGET (tree_view))) return; g_return_if_fail (tree_view->tree != NULL); gtk_tree_view_get_cursor (tree_view, &old_path, NULL); cursor_tree = tree_view->tree; if (count == -1) { cursor_node = gtk_tree_rbtree_first (cursor_tree); /* Now go forward to find the first focusable row. */ path = _gtk_tree_path_new_from_rbtree (cursor_tree, cursor_node); search_first_focusable_path (tree_view, &path, TRUE, &cursor_tree, &cursor_node); } else { cursor_node = cursor_tree->root; do { while (cursor_node && !gtk_tree_rbtree_is_nil (cursor_node->right)) cursor_node = cursor_node->right; if (cursor_node->children == NULL) break; cursor_tree = cursor_node->children; cursor_node = cursor_tree->root; } while (1); /* Now go backwards to find last focusable row. */ path = _gtk_tree_path_new_from_rbtree (cursor_tree, cursor_node); search_first_focusable_path (tree_view, &path, FALSE, &cursor_tree, &cursor_node); } if (!path) goto cleanup; if (gtk_tree_path_compare (old_path, path)) { gtk_tree_view_real_set_cursor (tree_view, path, CLEAR_AND_SELECT | CLAMP_NODE); gtk_widget_grab_focus (GTK_WIDGET (tree_view)); } else { gtk_widget_error_bell (GTK_WIDGET (tree_view)); } cleanup: gtk_tree_path_free (old_path); gtk_tree_path_free (path); } static gboolean gtk_tree_view_real_select_all (GtkTreeView *tree_view) { if (!gtk_widget_has_focus (GTK_WIDGET (tree_view))) return FALSE; if (gtk_tree_selection_get_mode (tree_view->selection) != GTK_SELECTION_MULTIPLE) return FALSE; gtk_tree_selection_select_all (tree_view->selection); return TRUE; } static gboolean gtk_tree_view_real_unselect_all (GtkTreeView *tree_view) { if (!gtk_widget_has_focus (GTK_WIDGET (tree_view))) return FALSE; if (gtk_tree_selection_get_mode (tree_view->selection) != GTK_SELECTION_MULTIPLE) return FALSE; gtk_tree_selection_unselect_all (tree_view->selection); return TRUE; } static gboolean gtk_tree_view_real_select_cursor_row (GtkTreeView *tree_view, gboolean start_editing) { GtkTreeRBTree *new_tree = NULL; GtkTreeRBNode *new_node = NULL; GtkTreeRBTree *cursor_tree = NULL; GtkTreeRBNode *cursor_node = NULL; GtkTreePath *cursor_path = NULL; GtkTreeSelectMode mode = 0; if (!gtk_widget_has_focus (GTK_WIDGET (tree_view))) return FALSE; if (tree_view->cursor_node == NULL) return FALSE; cursor_path = _gtk_tree_path_new_from_rbtree (tree_view->cursor_tree, tree_view->cursor_node); _gtk_tree_view_find_node (tree_view, cursor_path, &cursor_tree, &cursor_node); if (cursor_tree == NULL) { gtk_tree_path_free (cursor_path); return FALSE; } if (!tree_view->extend_selection_pressed && start_editing && tree_view->focus_column) { if (gtk_tree_view_start_editing (tree_view, cursor_path, FALSE)) { gtk_tree_path_free (cursor_path); return TRUE; } } if (tree_view->modify_selection_pressed) mode |= GTK_TREE_SELECT_MODE_TOGGLE; if (tree_view->extend_selection_pressed) mode |= GTK_TREE_SELECT_MODE_EXTEND; _gtk_tree_selection_internal_select_node (tree_view->selection, cursor_node, cursor_tree, cursor_path, mode, FALSE); /* We bail out if the original (tree, node) don't exist anymore after * handling the selection-changed callback. We do return TRUE because * the key press has been handled at this point. */ _gtk_tree_view_find_node (tree_view, cursor_path, &new_tree, &new_node); if (cursor_tree != new_tree || cursor_node != new_node) return FALSE; gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node); gtk_widget_grab_focus (GTK_WIDGET (tree_view)); gtk_widget_queue_draw (GTK_WIDGET (tree_view)); if (!tree_view->extend_selection_pressed) gtk_tree_view_row_activated (tree_view, cursor_path, tree_view->focus_column); gtk_tree_path_free (cursor_path); return TRUE; } static gboolean gtk_tree_view_real_toggle_cursor_row (GtkTreeView *tree_view) { GtkTreeRBTree *new_tree = NULL; GtkTreeRBNode *new_node = NULL; GtkTreePath *cursor_path = NULL; if (!gtk_widget_has_focus (GTK_WIDGET (tree_view))) return FALSE; if (tree_view->cursor_node == NULL) return FALSE; cursor_path = _gtk_tree_path_new_from_rbtree (tree_view->cursor_tree, tree_view->cursor_node); _gtk_tree_selection_internal_select_node (tree_view->selection, tree_view->cursor_node, tree_view->cursor_tree, cursor_path, GTK_TREE_SELECT_MODE_TOGGLE, FALSE); /* We bail out if the original (tree, node) don't exist anymore after * handling the selection-changed callback. We do return TRUE because * the key press has been handled at this point. */ _gtk_tree_view_find_node (tree_view, cursor_path, &new_tree, &new_node); if (tree_view->cursor_node != new_node) return FALSE; gtk_tree_view_clamp_node_visible (tree_view, tree_view->cursor_tree, tree_view->cursor_node); gtk_widget_grab_focus (GTK_WIDGET (tree_view)); gtk_widget_queue_draw (GTK_WIDGET (tree_view)); gtk_tree_path_free (cursor_path); return TRUE; } static gboolean gtk_tree_view_real_expand_collapse_cursor_row (GtkTreeView *tree_view, gboolean logical, gboolean expand, gboolean open_all) { GtkTreePath *cursor_path = NULL; if (!gtk_widget_has_focus (GTK_WIDGET (tree_view))) return FALSE; if (tree_view->cursor_node == NULL) return FALSE; cursor_path = _gtk_tree_path_new_from_rbtree (tree_view->cursor_tree, tree_view->cursor_node); /* Don't handle the event if we aren't an expander */ if (!GTK_TREE_RBNODE_FLAG_SET (tree_view->cursor_node, GTK_TREE_RBNODE_IS_PARENT)) return FALSE; if (!logical && gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL) expand = !expand; if (expand) gtk_tree_view_real_expand_row (tree_view, cursor_path, tree_view->cursor_tree, tree_view->cursor_node, open_all, TRUE); else gtk_tree_view_real_collapse_row (tree_view, cursor_path, tree_view->cursor_tree, tree_view->cursor_node, TRUE); gtk_tree_path_free (cursor_path); return TRUE; } static gboolean gtk_tree_view_real_select_cursor_parent (GtkTreeView *tree_view) { GtkTreePath *cursor_path = NULL; GdkModifierType state; if (!gtk_widget_has_focus (GTK_WIDGET (tree_view))) goto out; if (tree_view->cursor_node == NULL) goto out; cursor_path = _gtk_tree_path_new_from_rbtree (tree_view->cursor_tree, tree_view->cursor_node); if (tree_view->cursor_tree->parent_node) { gtk_widget_queue_draw (GTK_WIDGET (tree_view)); gtk_tree_path_up (cursor_path); if (gtk_get_current_event_state (&state)) { GdkModifierType modify_mod_mask; modify_mod_mask = gtk_widget_get_modifier_mask (GTK_WIDGET (tree_view), GDK_MODIFIER_INTENT_MODIFY_SELECTION); if ((state & modify_mod_mask) == modify_mod_mask) tree_view->modify_selection_pressed = TRUE; } gtk_tree_view_real_set_cursor (tree_view, cursor_path, CLEAR_AND_SELECT | CLAMP_NODE); gtk_tree_path_free (cursor_path); gtk_widget_grab_focus (GTK_WIDGET (tree_view)); tree_view->modify_selection_pressed = FALSE; return TRUE; } out: tree_view->search_entry_avoid_unhandled_binding = TRUE; return FALSE; } static gboolean gtk_tree_view_search_entry_flush_timeout (GtkTreeView *tree_view) { gtk_tree_view_search_popover_hide (tree_view->search_popover, tree_view, NULL); tree_view->typeselect_flush_timeout = 0; return FALSE; } static void gtk_tree_view_ensure_interactive_directory (GtkTreeView *tree_view) { GtkEventController *controller; GtkGesture *gesture; if (tree_view->search_custom_entry_set) return; if (tree_view->search_popover) return; tree_view->search_popover = gtk_popover_new (GTK_WIDGET (tree_view)); gtk_popover_set_autohide (GTK_POPOVER (tree_view->search_popover), FALSE); controller = gtk_event_controller_key_new (); g_signal_connect (controller, "key-pressed", G_CALLBACK (gtk_tree_view_search_key_pressed), tree_view); gtk_widget_add_controller (tree_view->search_popover, controller); gesture = gtk_gesture_click_new (); g_signal_connect (gesture, "pressed", G_CALLBACK (gtk_tree_view_search_pressed_cb), tree_view); gtk_widget_add_controller (tree_view->search_popover, GTK_EVENT_CONTROLLER (gesture)); controller = gtk_event_controller_scroll_new (GTK_EVENT_CONTROLLER_SCROLL_VERTICAL); g_signal_connect (controller, "scroll", G_CALLBACK (gtk_tree_view_search_scroll_event), tree_view); gtk_widget_add_controller (tree_view->search_popover, controller); tree_view->search_entry = gtk_text_new (); controller = gtk_text_get_key_controller (GTK_TEXT (tree_view->search_entry)); gtk_event_controller_set_propagation_limit (controller, GTK_LIMIT_NONE); g_signal_connect (tree_view->search_entry, "activate", G_CALLBACK (gtk_tree_view_search_activate), tree_view); g_signal_connect (tree_view->search_entry, "preedit-changed", G_CALLBACK (gtk_tree_view_search_preedit_changed), tree_view); g_signal_connect (tree_view->search_entry, "changed", G_CALLBACK (gtk_tree_view_search_changed), tree_view); gtk_container_add (GTK_CONTAINER (tree_view->search_popover), tree_view->search_entry); gtk_widget_realize (tree_view->search_entry); } /* Pops up the interactive search entry. If keybinding is TRUE then the user * started this by typing the start_interactive_search keybinding. Otherwise, it came from */ static gboolean gtk_tree_view_real_start_interactive_search (GtkTreeView *tree_view, GdkDevice *device, gboolean keybinding) { /* We only start interactive search if we have focus or the columns * have focus. If one of our children have focus, we don't want to * start the search. */ GList *list; gboolean found_focus = FALSE; if (!tree_view->enable_search && !keybinding) return FALSE; if (tree_view->search_custom_entry_set) return FALSE; if (tree_view->search_popover && gtk_widget_get_visible (tree_view->search_popover)) return TRUE; for (list = tree_view->columns; list; list = list->next) { GtkTreeViewColumn *column; GtkWidget *button; column = list->data; if (!gtk_tree_view_column_get_visible (column)) continue; button = gtk_tree_view_column_get_button (column); if (gtk_widget_has_focus (button)) { found_focus = TRUE; break; } } if (gtk_widget_has_focus (GTK_WIDGET (tree_view))) found_focus = TRUE; if (!found_focus) return FALSE; if (tree_view->search_column < 0) return FALSE; gtk_tree_view_ensure_interactive_directory (tree_view); if (keybinding) gtk_editable_set_text (GTK_EDITABLE (tree_view->search_entry), ""); /* Grab focus without selecting all the text. */ if (GTK_IS_ENTRY (tree_view->search_entry)) gtk_entry_grab_focus_without_selecting (GTK_ENTRY (tree_view->search_entry)); else gtk_widget_grab_focus (tree_view->search_entry); gtk_popover_popup (GTK_POPOVER (tree_view->search_popover)); if (tree_view->search_entry_changed_id == 0) { tree_view->search_entry_changed_id = g_signal_connect (tree_view->search_entry, "changed", G_CALLBACK (gtk_tree_view_search_init), tree_view); } tree_view->typeselect_flush_timeout = g_timeout_add (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT, (GSourceFunc) gtk_tree_view_search_entry_flush_timeout, tree_view); g_source_set_name_by_id (tree_view->typeselect_flush_timeout, "[gtk] gtk_tree_view_search_entry_flush_timeout"); /* search first matching iter */ gtk_tree_view_search_init (tree_view->search_entry, tree_view); return TRUE; } static gboolean gtk_tree_view_start_interactive_search (GtkTreeView *tree_view) { return gtk_tree_view_real_start_interactive_search (tree_view, gtk_get_current_event_device (), TRUE); } /* Callbacks */ static void gtk_tree_view_adjustment_changed (GtkAdjustment *adjustment, GtkTreeView *tree_view) { if (gtk_widget_get_realized (GTK_WIDGET (tree_view))) { GtkAllocation allocation; gint dy; gtk_widget_get_allocation (GTK_WIDGET (tree_view), &allocation); dy = tree_view->dy - (int) gtk_adjustment_get_value (tree_view->vadjustment); if (dy != 0) { /* update our dy and top_row */ tree_view->dy = (int) gtk_adjustment_get_value (tree_view->vadjustment); update_prelight (tree_view, tree_view->event_last_x, tree_view->event_last_y); if (!tree_view->in_top_row_to_dy) gtk_tree_view_dy_to_top_row (tree_view); } } gtk_widget_queue_allocate (GTK_WIDGET (tree_view)); } /* Public methods */ /** * gtk_tree_view_new: * * Creates a new #GtkTreeView widget. * * Returns: A newly created #GtkTreeView widget. **/ GtkWidget * gtk_tree_view_new (void) { return g_object_new (GTK_TYPE_TREE_VIEW, NULL); } /** * gtk_tree_view_new_with_model: * @model: the model. * * Creates a new #GtkTreeView widget with the model initialized to @model. * * Returns: A newly created #GtkTreeView widget. **/ GtkWidget * gtk_tree_view_new_with_model (GtkTreeModel *model) { return g_object_new (GTK_TYPE_TREE_VIEW, "model", model, NULL); } /* Public Accessors */ /** * gtk_tree_view_get_model: * @tree_view: a #GtkTreeView * * Returns the model the #GtkTreeView is based on. Returns %NULL if the * model is unset. * * Returns: (transfer none) (nullable): A #GtkTreeModel, or %NULL if * none is currently being used. **/ GtkTreeModel * gtk_tree_view_get_model (GtkTreeView *tree_view) { g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL); return tree_view->model; } /** * gtk_tree_view_set_model: * @tree_view: A #GtkTreeView. * @model: (allow-none): The model. * * Sets the model for a #GtkTreeView. If the @tree_view already has a model * set, it will remove it before setting the new model. If @model is %NULL, * then it will unset the old model. **/ void gtk_tree_view_set_model (GtkTreeView *tree_view, GtkTreeModel *model) { g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); g_return_if_fail (model == NULL || GTK_IS_TREE_MODEL (model)); if (model == tree_view->model) return; if (tree_view->scroll_to_path) { gtk_tree_row_reference_free (tree_view->scroll_to_path); tree_view->scroll_to_path = NULL; } if (tree_view->rubber_band_status) gtk_tree_view_stop_rubber_band (tree_view); if (tree_view->model) { GList *tmplist = tree_view->columns; gtk_tree_view_unref_and_check_selection_tree (tree_view, tree_view->tree); gtk_tree_view_stop_editing (tree_view, TRUE); g_signal_handlers_disconnect_by_func (tree_view->model, gtk_tree_view_row_changed, tree_view); g_signal_handlers_disconnect_by_func (tree_view->model, gtk_tree_view_row_inserted, tree_view); g_signal_handlers_disconnect_by_func (tree_view->model, gtk_tree_view_row_has_child_toggled, tree_view); g_signal_handlers_disconnect_by_func (tree_view->model, gtk_tree_view_row_deleted, tree_view); g_signal_handlers_disconnect_by_func (tree_view->model, gtk_tree_view_rows_reordered, tree_view); for (; tmplist; tmplist = tmplist->next) _gtk_tree_view_column_unset_model (tmplist->data, tree_view->model); if (tree_view->tree) gtk_tree_view_free_rbtree (tree_view); gtk_tree_row_reference_free (tree_view->drag_dest_row); tree_view->drag_dest_row = NULL; gtk_tree_row_reference_free (tree_view->anchor); tree_view->anchor = NULL; gtk_tree_row_reference_free (tree_view->top_row); tree_view->top_row = NULL; gtk_tree_row_reference_free (tree_view->scroll_to_path); tree_view->scroll_to_path = NULL; tree_view->scroll_to_column = NULL; g_object_unref (tree_view->model); tree_view->search_column = -1; tree_view->fixed_height_check = 0; tree_view->fixed_height = -1; tree_view->dy = tree_view->top_row_dy = 0; } tree_view->model = model; if (tree_view->model) { gint i; GtkTreePath *path; GtkTreeIter iter; GtkTreeModelFlags flags; if (tree_view->search_column == -1) { for (i = 0; i < gtk_tree_model_get_n_columns (model); i++) { GType type = gtk_tree_model_get_column_type (model, i); if (g_value_type_transformable (type, G_TYPE_STRING)) { tree_view->search_column = i; break; } } } g_object_ref (tree_view->model); g_signal_connect (tree_view->model, "row-changed", G_CALLBACK (gtk_tree_view_row_changed), tree_view); g_signal_connect (tree_view->model, "row-inserted", G_CALLBACK (gtk_tree_view_row_inserted), tree_view); g_signal_connect (tree_view->model, "row-has-child-toggled", G_CALLBACK (gtk_tree_view_row_has_child_toggled), tree_view); g_signal_connect (tree_view->model, "row-deleted", G_CALLBACK (gtk_tree_view_row_deleted), tree_view); g_signal_connect (tree_view->model, "rows-reordered", G_CALLBACK (gtk_tree_view_rows_reordered), tree_view); flags = gtk_tree_model_get_flags (tree_view->model); if ((flags & GTK_TREE_MODEL_LIST_ONLY) == GTK_TREE_MODEL_LIST_ONLY) tree_view->is_list = TRUE; else tree_view->is_list = FALSE; path = gtk_tree_path_new_first (); if (gtk_tree_model_get_iter (tree_view->model, &iter, path)) { tree_view->tree = gtk_tree_rbtree_new (); gtk_tree_view_build_tree (tree_view, tree_view->tree, &iter, 1, FALSE); _gtk_tree_view_accessible_add (tree_view, tree_view->tree, NULL); } gtk_tree_path_free (path); /* FIXME: do I need to do this? gtk_tree_view_create_buttons (tree_view); */ install_presize_handler (tree_view); } gtk_tree_view_real_set_cursor (tree_view, NULL, CURSOR_INVALID); g_object_notify_by_pspec (G_OBJECT (tree_view), tree_view_props[PROP_MODEL]); if (tree_view->selection) _gtk_tree_selection_emit_changed (tree_view->selection); if (gtk_widget_get_realized (GTK_WIDGET (tree_view))) gtk_widget_queue_resize (GTK_WIDGET (tree_view)); } /** * gtk_tree_view_get_selection: * @tree_view: A #GtkTreeView. * * Gets the #GtkTreeSelection associated with @tree_view. * * Returns: (transfer none): A #GtkTreeSelection object. **/ GtkTreeSelection * gtk_tree_view_get_selection (GtkTreeView *tree_view) { g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL); return tree_view->selection; } static void gtk_tree_view_do_set_hadjustment (GtkTreeView *tree_view, GtkAdjustment *adjustment) { if (adjustment && tree_view->hadjustment == adjustment) return; if (tree_view->hadjustment != NULL) { g_signal_handlers_disconnect_by_func (tree_view->hadjustment, gtk_tree_view_adjustment_changed, tree_view); g_object_unref (tree_view->hadjustment); } if (adjustment == NULL) adjustment = gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0); g_signal_connect (adjustment, "value-changed", G_CALLBACK (gtk_tree_view_adjustment_changed), tree_view); tree_view->hadjustment = g_object_ref_sink (adjustment); /* FIXME: Adjustment should probably be populated here with fresh values, but * internal details are too complicated for me to decipher right now. */ gtk_tree_view_adjustment_changed (NULL, tree_view); g_object_notify (G_OBJECT (tree_view), "hadjustment"); } static void gtk_tree_view_do_set_vadjustment (GtkTreeView *tree_view, GtkAdjustment *adjustment) { if (adjustment && tree_view->vadjustment == adjustment) return; if (tree_view->vadjustment != NULL) { g_signal_handlers_disconnect_by_func (tree_view->vadjustment, gtk_tree_view_adjustment_changed, tree_view); g_object_unref (tree_view->vadjustment); } if (adjustment == NULL) adjustment = gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0); g_signal_connect (adjustment, "value-changed", G_CALLBACK (gtk_tree_view_adjustment_changed), tree_view); tree_view->vadjustment = g_object_ref_sink (adjustment); /* FIXME: Adjustment should probably be populated here with fresh values, but * internal details are too complicated for me to decipher right now. */ gtk_tree_view_adjustment_changed (NULL, tree_view); g_object_notify (G_OBJECT (tree_view), "vadjustment"); } /* Column and header operations */ /** * gtk_tree_view_get_headers_visible: * @tree_view: A #GtkTreeView. * * Returns %TRUE if the headers on the @tree_view are visible. * * Returns: Whether the headers are visible or not. **/ gboolean gtk_tree_view_get_headers_visible (GtkTreeView *tree_view) { g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE); return tree_view->headers_visible; } /** * gtk_tree_view_set_headers_visible: * @tree_view: A #GtkTreeView. * @headers_visible: %TRUE if the headers are visible * * Sets the visibility state of the headers. **/ void gtk_tree_view_set_headers_visible (GtkTreeView *tree_view, gboolean headers_visible) { GList *list; GtkTreeViewColumn *column; GtkWidget *button; g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); headers_visible = !! headers_visible; if (tree_view->headers_visible == headers_visible) return; tree_view->headers_visible = headers_visible == TRUE; if (gtk_widget_get_realized (GTK_WIDGET (tree_view))) { if (headers_visible) { if (gtk_widget_get_mapped (GTK_WIDGET (tree_view))) gtk_tree_view_map_buttons (tree_view); } else { for (list = tree_view->columns; list; list = list->next) { column = list->data; button = gtk_tree_view_column_get_button (column); gtk_widget_hide (button); gtk_widget_unmap (button); } } } gtk_widget_queue_resize (GTK_WIDGET (tree_view)); g_object_notify_by_pspec (G_OBJECT (tree_view), tree_view_props[PROP_HEADERS_VISIBLE]); } /** * gtk_tree_view_columns_autosize: * @tree_view: A #GtkTreeView. * * Resizes all columns to their optimal width. Only works after the * treeview has been realized. **/ void gtk_tree_view_columns_autosize (GtkTreeView *tree_view) { gboolean dirty = FALSE; GList *list; GtkTreeViewColumn *column; g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); for (list = tree_view->columns; list; list = list->next) { column = list->data; if (gtk_tree_view_column_get_sizing (column) == GTK_TREE_VIEW_COLUMN_AUTOSIZE) continue; _gtk_tree_view_column_cell_set_dirty (column, TRUE); dirty = TRUE; } if (dirty) gtk_widget_queue_resize (GTK_WIDGET (tree_view)); } /** * gtk_tree_view_set_headers_clickable: * @tree_view: A #GtkTreeView. * @setting: %TRUE if the columns are clickable. * * Allow the column title buttons to be clicked. **/ void gtk_tree_view_set_headers_clickable (GtkTreeView *tree_view, gboolean setting) { GList *list; gboolean changed = FALSE; g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); for (list = tree_view->columns; list; list = list->next) { if (gtk_tree_view_column_get_clickable (GTK_TREE_VIEW_COLUMN (list->data)) != setting) { gtk_tree_view_column_set_clickable (GTK_TREE_VIEW_COLUMN (list->data), setting); changed = TRUE; } } if (changed) g_object_notify_by_pspec (G_OBJECT (tree_view), tree_view_props[PROP_HEADERS_CLICKABLE]); } /** * gtk_tree_view_get_headers_clickable: * @tree_view: A #GtkTreeView. * * Returns whether all header columns are clickable. * * Returns: %TRUE if all header columns are clickable, otherwise %FALSE **/ gboolean gtk_tree_view_get_headers_clickable (GtkTreeView *tree_view) { GList *list; g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE); for (list = tree_view->columns; list; list = list->next) if (!gtk_tree_view_column_get_clickable (GTK_TREE_VIEW_COLUMN (list->data))) return FALSE; return TRUE; } /** * gtk_tree_view_set_activate_on_single_click: * @tree_view: a #GtkTreeView * @single: %TRUE to emit row-activated on a single click * * Cause the #GtkTreeView::row-activated signal to be emitted * on a single click instead of a double click. **/ void gtk_tree_view_set_activate_on_single_click (GtkTreeView *tree_view, gboolean single) { g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); single = single != FALSE; if (tree_view->activate_on_single_click == single) return; tree_view->activate_on_single_click = single; g_object_notify_by_pspec (G_OBJECT (tree_view), tree_view_props[PROP_ACTIVATE_ON_SINGLE_CLICK]); } /** * gtk_tree_view_get_activate_on_single_click: * @tree_view: a #GtkTreeView * * Gets the setting set by gtk_tree_view_set_activate_on_single_click(). * * Returns: %TRUE if row-activated will be emitted on a single click **/ gboolean gtk_tree_view_get_activate_on_single_click (GtkTreeView *tree_view) { g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE); return tree_view->activate_on_single_click; } /* Public Column functions */ /** * gtk_tree_view_append_column: * @tree_view: A #GtkTreeView. * @column: The #GtkTreeViewColumn to add. * * Appends @column to the list of columns. If @tree_view has “fixed_height” * mode enabled, then @column must have its “sizing” property set to be * GTK_TREE_VIEW_COLUMN_FIXED. * * Returns: The number of columns in @tree_view after appending. **/ gint gtk_tree_view_append_column (GtkTreeView *tree_view, GtkTreeViewColumn *column) { g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1); g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1); g_return_val_if_fail (gtk_tree_view_column_get_tree_view (column) == NULL, -1); return gtk_tree_view_insert_column (tree_view, column, -1); } /** * gtk_tree_view_remove_column: * @tree_view: A #GtkTreeView. * @column: The #GtkTreeViewColumn to remove. * * Removes @column from @tree_view. * * Returns: The number of columns in @tree_view after removing. **/ gint gtk_tree_view_remove_column (GtkTreeView *tree_view, GtkTreeViewColumn *column) { guint position; g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1); g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1); g_return_val_if_fail (gtk_tree_view_column_get_tree_view (column) == GTK_WIDGET (tree_view), -1); if (tree_view->focus_column == column) _gtk_tree_view_set_focus_column (tree_view, NULL); if (tree_view->edited_column == column) { gtk_tree_view_stop_editing (tree_view, TRUE); /* no need to, but just to be sure ... */ tree_view->edited_column = NULL; } if (tree_view->expander_column == column) tree_view->expander_column = NULL; g_signal_handlers_disconnect_by_func (column, G_CALLBACK (column_sizing_notify), tree_view); position = g_list_index (tree_view->columns, column); _gtk_tree_view_column_unset_tree_view (column); tree_view->columns = g_list_remove (tree_view->columns, column); tree_view->n_columns--; if (gtk_widget_get_realized (GTK_WIDGET (tree_view))) { GList *list; for (list = tree_view->columns; list; list = list->next) { GtkTreeViewColumn *tmp_column; tmp_column = GTK_TREE_VIEW_COLUMN (list->data); if (gtk_tree_view_column_get_visible (tmp_column)) _gtk_tree_view_column_cell_set_dirty (tmp_column, TRUE); } gtk_widget_queue_resize (GTK_WIDGET (tree_view)); } _gtk_tree_view_accessible_remove_column (tree_view, column, position); g_object_unref (column); g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0); return tree_view->n_columns; } /** * gtk_tree_view_insert_column: * @tree_view: A #GtkTreeView. * @column: The #GtkTreeViewColumn to be inserted. * @position: The position to insert @column in. * * This inserts the @column into the @tree_view at @position. If @position is * -1, then the column is inserted at the end. If @tree_view has * “fixed_height” mode enabled, then @column must have its “sizing” property * set to be GTK_TREE_VIEW_COLUMN_FIXED. * * Returns: The number of columns in @tree_view after insertion. **/ gint gtk_tree_view_insert_column (GtkTreeView *tree_view, GtkTreeViewColumn *column, gint position) { g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1); g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1); g_return_val_if_fail (gtk_tree_view_column_get_tree_view (column) == NULL, -1); if (tree_view->fixed_height_mode) g_return_val_if_fail (gtk_tree_view_column_get_sizing (column) == GTK_TREE_VIEW_COLUMN_FIXED, -1); if (position < 0 || position > tree_view->n_columns) position = tree_view->n_columns; g_object_ref_sink (column); g_signal_connect (column, "notify::sizing", G_CALLBACK (column_sizing_notify), tree_view); tree_view->columns = g_list_insert (tree_view->columns, column, position); tree_view->n_columns++; gtk_tree_view_update_button_position (tree_view, column); _gtk_tree_view_column_set_tree_view (column, tree_view); if (gtk_widget_get_realized (GTK_WIDGET (tree_view))) { GList *list; _gtk_tree_view_column_realize_button (column); for (list = tree_view->columns; list; list = list->next) { column = GTK_TREE_VIEW_COLUMN (list->data); if (gtk_tree_view_column_get_visible (column)) _gtk_tree_view_column_cell_set_dirty (column, TRUE); } gtk_widget_queue_resize (GTK_WIDGET (tree_view)); } _gtk_tree_view_accessible_add_column (tree_view, column, position); g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0); return tree_view->n_columns; } /** * gtk_tree_view_insert_column_with_attributes: * @tree_view: A #GtkTreeView * @position: The position to insert the new column in * @title: The title to set the header to * @cell: The #GtkCellRenderer * @...: A %NULL-terminated list of attributes * * Creates a new #GtkTreeViewColumn and inserts it into the @tree_view at * @position. If @position is -1, then the newly created column is inserted at * the end. The column is initialized with the attributes given. If @tree_view * has “fixed_height” mode enabled, then the new column will have its sizing * property set to be GTK_TREE_VIEW_COLUMN_FIXED. * * Returns: The number of columns in @tree_view after insertion. **/ gint gtk_tree_view_insert_column_with_attributes (GtkTreeView *tree_view, gint position, const gchar *title, GtkCellRenderer *cell, ...) { GtkTreeViewColumn *column; gchar *attribute; va_list args; gint column_id; g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1); column = gtk_tree_view_column_new (); if (tree_view->fixed_height_mode) gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED); gtk_tree_view_column_set_title (column, title); gtk_tree_view_column_pack_start (column, cell, TRUE); va_start (args, cell); attribute = va_arg (args, gchar *); while (attribute != NULL) { column_id = va_arg (args, gint); gtk_tree_view_column_add_attribute (column, cell, attribute, column_id); attribute = va_arg (args, gchar *); } va_end (args); return gtk_tree_view_insert_column (tree_view, column, position); } /** * gtk_tree_view_insert_column_with_data_func: * @tree_view: a #GtkTreeView * @position: Position to insert, -1 for append * @title: column title * @cell: cell renderer for column * @func: function to set attributes of cell renderer * @data: data for @func * @dnotify: destroy notifier for @data * * Convenience function that inserts a new column into the #GtkTreeView * with the given cell renderer and a #GtkTreeCellDataFunc to set cell renderer * attributes (normally using data from the model). See also * gtk_tree_view_column_set_cell_data_func(), gtk_tree_view_column_pack_start(). * If @tree_view has “fixed_height” mode enabled, then the new column will have its * “sizing” property set to be GTK_TREE_VIEW_COLUMN_FIXED. * * Returns: number of columns in the tree view post-insert **/ gint gtk_tree_view_insert_column_with_data_func (GtkTreeView *tree_view, gint position, const gchar *title, GtkCellRenderer *cell, GtkTreeCellDataFunc func, gpointer data, GDestroyNotify dnotify) { GtkTreeViewColumn *column; g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1); column = gtk_tree_view_column_new (); if (tree_view->fixed_height_mode) gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED); gtk_tree_view_column_set_title (column, title); gtk_tree_view_column_pack_start (column, cell, TRUE); gtk_tree_view_column_set_cell_data_func (column, cell, func, data, dnotify); return gtk_tree_view_insert_column (tree_view, column, position); } /** * gtk_tree_view_get_n_columns: * @tree_view: a #GtkTreeView * * Queries the number of columns in the given @tree_view. * * Returns: The number of columns in the @tree_view **/ guint gtk_tree_view_get_n_columns (GtkTreeView *tree_view) { g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0); return tree_view->n_columns; } /** * gtk_tree_view_get_column: * @tree_view: A #GtkTreeView. * @n: The position of the column, counting from 0. * * Gets the #GtkTreeViewColumn at the given position in the #tree_view. * * Returns: (nullable) (transfer none): The #GtkTreeViewColumn, or %NULL if the * position is outside the range of columns. **/ GtkTreeViewColumn * gtk_tree_view_get_column (GtkTreeView *tree_view, gint n) { g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL); if (n < 0 || n >= tree_view->n_columns) return NULL; if (tree_view->columns == NULL) return NULL; return GTK_TREE_VIEW_COLUMN (g_list_nth (tree_view->columns, n)->data); } /** * gtk_tree_view_get_columns: * @tree_view: A #GtkTreeView * * Returns a #GList of all the #GtkTreeViewColumn s currently in @tree_view. * The returned list must be freed with g_list_free (). * * Returns: (element-type GtkTreeViewColumn) (transfer container): A list of #GtkTreeViewColumn s **/ GList * gtk_tree_view_get_columns (GtkTreeView *tree_view) { g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL); return g_list_copy (tree_view->columns); } /** * gtk_tree_view_move_column_after: * @tree_view: A #GtkTreeView * @column: The #GtkTreeViewColumn to be moved. * @base_column: (allow-none): The #GtkTreeViewColumn to be moved relative to, or %NULL. * * Moves @column to be after to @base_column. If @base_column is %NULL, then * @column is placed in the first position. **/ void gtk_tree_view_move_column_after (GtkTreeView *tree_view, GtkTreeViewColumn *column, GtkTreeViewColumn *base_column) { GList *column_list_el, *base_el = NULL; g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); column_list_el = g_list_find (tree_view->columns, column); g_return_if_fail (column_list_el != NULL); if (base_column) { base_el = g_list_find (tree_view->columns, base_column); g_return_if_fail (base_el != NULL); } if (column_list_el->prev == base_el) return; tree_view->columns = g_list_remove_link (tree_view->columns, column_list_el); if (base_el == NULL) { column_list_el->prev = NULL; column_list_el->next = tree_view->columns; if (column_list_el->next) column_list_el->next->prev = column_list_el; tree_view->columns = column_list_el; } else { column_list_el->prev = base_el; column_list_el->next = base_el->next; if (column_list_el->next) column_list_el->next->prev = column_list_el; base_el->next = column_list_el; } gtk_tree_view_update_button_position (tree_view, column); gtk_widget_queue_resize (GTK_WIDGET (tree_view)); _gtk_tree_view_accessible_reorder_column (tree_view, column); g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0); } /** * gtk_tree_view_set_expander_column: * @tree_view: A #GtkTreeView * @column: (nullable): %NULL, or the column to draw the expander arrow at. * * Sets the column to draw the expander arrow at. It must be in @tree_view. * If @column is %NULL, then the expander arrow is always at the first * visible column. * * If you do not want expander arrow to appear in your tree, set the * expander column to a hidden column. **/ void gtk_tree_view_set_expander_column (GtkTreeView *tree_view, GtkTreeViewColumn *column) { g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column)); g_return_if_fail (column == NULL || gtk_tree_view_column_get_tree_view (column) == GTK_WIDGET (tree_view)); if (tree_view->expander_column != column) { tree_view->expander_column = column; g_object_notify_by_pspec (G_OBJECT (tree_view), tree_view_props[PROP_EXPANDER_COLUMN]); } } /** * gtk_tree_view_get_expander_column: * @tree_view: A #GtkTreeView * * Returns the column that is the current expander column. * This column has the expander arrow drawn next to it. * * Returns: (transfer none): The expander column. **/ GtkTreeViewColumn * gtk_tree_view_get_expander_column (GtkTreeView *tree_view) { GList *list; g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL); for (list = tree_view->columns; list; list = list->next) if (gtk_tree_view_is_expander_column (tree_view, GTK_TREE_VIEW_COLUMN (list->data))) return (GtkTreeViewColumn *) list->data; return NULL; } /** * gtk_tree_view_set_column_drag_function: * @tree_view: A #GtkTreeView. * @func: (allow-none): A function to determine which columns are reorderable, or %NULL. * @user_data: (closure): User data to be passed to @func, or %NULL * @destroy: (allow-none): Destroy notifier for @user_data, or %NULL * * Sets a user function for determining where a column may be dropped when * dragged. This function is called on every column pair in turn at the * beginning of a column drag to determine where a drop can take place. The * arguments passed to @func are: the @tree_view, the #GtkTreeViewColumn being * dragged, the two #GtkTreeViewColumn s determining the drop spot, and * @user_data. If either of the #GtkTreeViewColumn arguments for the drop spot * are %NULL, then they indicate an edge. If @func is set to be %NULL, then * @tree_view reverts to the default behavior of allowing all columns to be * dropped everywhere. **/ void gtk_tree_view_set_column_drag_function (GtkTreeView *tree_view, GtkTreeViewColumnDropFunc func, gpointer user_data, GDestroyNotify destroy) { g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); if (tree_view->column_drop_func_data_destroy) tree_view->column_drop_func_data_destroy (tree_view->column_drop_func_data); tree_view->column_drop_func = func; tree_view->column_drop_func_data = user_data; tree_view->column_drop_func_data_destroy = destroy; } /** * gtk_tree_view_scroll_to_point: * @tree_view: a #GtkTreeView * @tree_x: X coordinate of new top-left pixel of visible area, or -1 * @tree_y: Y coordinate of new top-left pixel of visible area, or -1 * * Scrolls the tree view such that the top-left corner of the visible * area is @tree_x, @tree_y, where @tree_x and @tree_y are specified * in tree coordinates. The @tree_view must be realized before * this function is called. If it isn't, you probably want to be * using gtk_tree_view_scroll_to_cell(). * * If either @tree_x or @tree_y are -1, then that direction isn’t scrolled. **/ void gtk_tree_view_scroll_to_point (GtkTreeView *tree_view, gint tree_x, gint tree_y) { GtkAdjustment *hadj; GtkAdjustment *vadj; g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); g_return_if_fail (gtk_widget_get_realized (GTK_WIDGET (tree_view))); hadj = tree_view->hadjustment; vadj = tree_view->vadjustment; if (tree_x != -1) gtk_adjustment_animate_to_value (hadj, tree_x); if (tree_y != -1) gtk_adjustment_animate_to_value (vadj, tree_y); } /** * gtk_tree_view_scroll_to_cell: * @tree_view: A #GtkTreeView. * @path: (allow-none): The path of the row to move to, or %NULL. * @column: (allow-none): The #GtkTreeViewColumn to move horizontally to, or %NULL. * @use_align: whether to use alignment arguments, or %FALSE. * @row_align: The vertical alignment of the row specified by @path. * @col_align: The horizontal alignment of the column specified by @column. * * Moves the alignments of @tree_view to the position specified by @column and * @path. If @column is %NULL, then no horizontal scrolling occurs. Likewise, * if @path is %NULL no vertical scrolling occurs. At a minimum, one of @column * or @path need to be non-%NULL. @row_align determines where the row is * placed, and @col_align determines where @column is placed. Both are expected * to be between 0.0 and 1.0. 0.0 means left/top alignment, 1.0 means * right/bottom alignment, 0.5 means center. * * If @use_align is %FALSE, then the alignment arguments are ignored, and the * tree does the minimum amount of work to scroll the cell onto the screen. * This means that the cell will be scrolled to the edge closest to its current * position. If the cell is currently visible on the screen, nothing is done. * * This function only works if the model is set, and @path is a valid row on the * model. If the model changes before the @tree_view is realized, the centered * path will be modified to reflect this change. **/ void gtk_tree_view_scroll_to_cell (GtkTreeView *tree_view, GtkTreePath *path, GtkTreeViewColumn *column, gboolean use_align, gfloat row_align, gfloat col_align) { g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); g_return_if_fail (tree_view->model != NULL); g_return_if_fail (tree_view->tree != NULL); g_return_if_fail (row_align >= 0.0 && row_align <= 1.0); g_return_if_fail (col_align >= 0.0 && col_align <= 1.0); g_return_if_fail (path != NULL || column != NULL); row_align = CLAMP (row_align, 0.0, 1.0); col_align = CLAMP (col_align, 0.0, 1.0); /* Note: Despite the benefits that come from having one code path for the * scrolling code, we short-circuit validate_visible_area's immplementation as * it is much slower than just going to the point. */ if (!gtk_widget_get_visible (GTK_WIDGET (tree_view)) || !gtk_widget_get_realized (GTK_WIDGET (tree_view)) || _gtk_widget_get_alloc_needed (GTK_WIDGET (tree_view)) || GTK_TREE_RBNODE_FLAG_SET (tree_view->tree->root, GTK_TREE_RBNODE_DESCENDANTS_INVALID)) { if (tree_view->scroll_to_path) gtk_tree_row_reference_free (tree_view->scroll_to_path); tree_view->scroll_to_path = NULL; tree_view->scroll_to_column = NULL; if (path) tree_view->scroll_to_path = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->model, path); if (column) tree_view->scroll_to_column = column; tree_view->scroll_to_use_align = use_align; tree_view->scroll_to_row_align = row_align; tree_view->scroll_to_col_align = col_align; install_presize_handler (tree_view); } else { GdkRectangle cell_rect; GdkRectangle vis_rect; gint dest_x, dest_y; gtk_tree_view_get_background_area (tree_view, path, column, &cell_rect); gtk_tree_view_get_visible_rect (tree_view, &vis_rect); cell_rect.y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, cell_rect.y); dest_x = vis_rect.x; dest_y = vis_rect.y; if (column) { if (use_align) { dest_x = cell_rect.x - ((vis_rect.width - cell_rect.width) * col_align); } else { if (cell_rect.x < vis_rect.x) dest_x = cell_rect.x; if (cell_rect.x + cell_rect.width > vis_rect.x + vis_rect.width) dest_x = cell_rect.x + cell_rect.width - vis_rect.width; } } if (path) { if (use_align) { dest_y = cell_rect.y - ((vis_rect.height - cell_rect.height) * row_align); dest_y = MAX (dest_y, 0); } else { if (cell_rect.y < vis_rect.y) dest_y = cell_rect.y; if (cell_rect.y + cell_rect.height > vis_rect.y + vis_rect.height) dest_y = cell_rect.y + cell_rect.height - vis_rect.height; } } gtk_tree_view_scroll_to_point (tree_view, dest_x, dest_y); } } /** * gtk_tree_view_row_activated: * @tree_view: A #GtkTreeView * @path: The #GtkTreePath to be activated. * @column: The #GtkTreeViewColumn to be activated. * * Activates the cell determined by @path and @column. **/ void gtk_tree_view_row_activated (GtkTreeView *tree_view, GtkTreePath *path, GtkTreeViewColumn *column) { g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); g_signal_emit (tree_view, tree_view_signals[ROW_ACTIVATED], 0, path, column); } static void gtk_tree_view_expand_all_emission_helper (GtkTreeRBTree *tree, GtkTreeRBNode *node, gpointer data) { GtkTreeView *tree_view = data; if ((node->flags & GTK_TREE_RBNODE_IS_PARENT) == GTK_TREE_RBNODE_IS_PARENT && node->children) { GtkTreePath *path; GtkTreeIter iter; path = _gtk_tree_path_new_from_rbtree (tree, node); gtk_tree_model_get_iter (tree_view->model, &iter, path); g_signal_emit (tree_view, tree_view_signals[ROW_EXPANDED], 0, &iter, path); gtk_tree_path_free (path); } if (node->children) gtk_tree_rbtree_traverse (node->children, node->children->root, G_PRE_ORDER, gtk_tree_view_expand_all_emission_helper, tree_view); } /** * gtk_tree_view_expand_all: * @tree_view: A #GtkTreeView. * * Recursively expands all nodes in the @tree_view. **/ void gtk_tree_view_expand_all (GtkTreeView *tree_view) { GtkTreePath *path; GtkTreeRBTree *tree; GtkTreeRBNode *node; g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); if (tree_view->tree == NULL) return; path = gtk_tree_path_new_first (); _gtk_tree_view_find_node (tree_view, path, &tree, &node); while (node) { gtk_tree_view_real_expand_row (tree_view, path, tree, node, TRUE, FALSE); node = gtk_tree_rbtree_next (tree, node); gtk_tree_path_next (path); } gtk_tree_path_free (path); } /** * gtk_tree_view_collapse_all: * @tree_view: A #GtkTreeView. * * Recursively collapses all visible, expanded nodes in @tree_view. **/ void gtk_tree_view_collapse_all (GtkTreeView *tree_view) { GtkTreeRBTree *tree; GtkTreeRBNode *node; GtkTreePath *path; gint *indices; g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); if (tree_view->tree == NULL) return; path = gtk_tree_path_new (); gtk_tree_path_down (path); indices = gtk_tree_path_get_indices (path); tree = tree_view->tree; node = gtk_tree_rbtree_first (tree); while (node) { if (node->children) gtk_tree_view_real_collapse_row (tree_view, path, tree, node, FALSE); indices[0]++; node = gtk_tree_rbtree_next (tree, node); } gtk_tree_path_free (path); } /** * gtk_tree_view_expand_to_path: * @tree_view: A #GtkTreeView. * @path: path to a row. * * Expands the row at @path. This will also expand all parent rows of * @path as necessary. **/ void gtk_tree_view_expand_to_path (GtkTreeView *tree_view, GtkTreePath *path) { gint i, depth; gint *indices; GtkTreePath *tmp; g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); g_return_if_fail (path != NULL); depth = gtk_tree_path_get_depth (path); indices = gtk_tree_path_get_indices (path); tmp = gtk_tree_path_new (); g_return_if_fail (tmp != NULL); for (i = 0; i < depth; i++) { gtk_tree_path_append_index (tmp, indices[i]); gtk_tree_view_expand_row (tree_view, tmp, FALSE); } gtk_tree_path_free (tmp); } /* FIXME the bool return values for expand_row and collapse_row are * not analagous; they should be TRUE if the row had children and * was not already in the requested state. */ static gboolean gtk_tree_view_real_expand_row (GtkTreeView *tree_view, GtkTreePath *path, GtkTreeRBTree *tree, GtkTreeRBNode *node, gboolean open_all, gboolean animate) { GtkTreeIter iter; GtkTreeIter temp; gboolean expand; if (animate) animate = gtk_settings_get_enable_animations (gtk_widget_get_settings (GTK_WIDGET (tree_view))); remove_auto_expand_timeout (tree_view); if (node->children && !open_all) return FALSE; if (! GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_PARENT)) return FALSE; gtk_tree_model_get_iter (tree_view->model, &iter, path); if (! gtk_tree_model_iter_has_child (tree_view->model, &iter)) return FALSE; if (node->children && open_all) { gboolean retval = FALSE; GtkTreePath *tmp_path = gtk_tree_path_copy (path); gtk_tree_path_append_index (tmp_path, 0); tree = node->children; node = gtk_tree_rbtree_first (tree); /* try to expand the children */ do { gboolean t; t = gtk_tree_view_real_expand_row (tree_view, tmp_path, tree, node, TRUE, animate); if (t) retval = TRUE; gtk_tree_path_next (tmp_path); node = gtk_tree_rbtree_next (tree, node); } while (node != NULL); gtk_tree_path_free (tmp_path); return retval; } g_signal_emit (tree_view, tree_view_signals[TEST_EXPAND_ROW], 0, &iter, path, &expand); if (!gtk_tree_model_iter_has_child (tree_view->model, &iter)) return FALSE; if (expand) return FALSE; node->children = gtk_tree_rbtree_new (); node->children->parent_tree = tree; node->children->parent_node = node; gtk_tree_model_iter_children (tree_view->model, &temp, &iter); gtk_tree_view_build_tree (tree_view, node->children, &temp, gtk_tree_path_get_depth (path) + 1, open_all); _gtk_tree_view_accessible_add (tree_view, node->children, NULL); _gtk_tree_view_accessible_add_state (tree_view, tree, node, GTK_CELL_RENDERER_EXPANDED); install_presize_handler (tree_view); g_signal_emit (tree_view, tree_view_signals[ROW_EXPANDED], 0, &iter, path); if (open_all && node->children) { gtk_tree_rbtree_traverse (node->children, node->children->root, G_PRE_ORDER, gtk_tree_view_expand_all_emission_helper, tree_view); } return TRUE; } /** * gtk_tree_view_expand_row: * @tree_view: a #GtkTreeView * @path: path to a row * @open_all: whether to recursively expand, or just expand immediate children * * Opens the row so its children are visible. * * Returns: %TRUE if the row existed and had children **/ gboolean gtk_tree_view_expand_row (GtkTreeView *tree_view, GtkTreePath *path, gboolean open_all) { GtkTreeRBTree *tree; GtkTreeRBNode *node; g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE); g_return_val_if_fail (tree_view->model != NULL, FALSE); g_return_val_if_fail (path != NULL, FALSE); if (_gtk_tree_view_find_node (tree_view, path, &tree, &node)) return FALSE; if (tree != NULL) return gtk_tree_view_real_expand_row (tree_view, path, tree, node, open_all, FALSE); else return FALSE; } static gboolean gtk_tree_view_real_collapse_row (GtkTreeView *tree_view, GtkTreePath *path, GtkTreeRBTree *tree, GtkTreeRBNode *node, gboolean animate) { GtkTreeIter iter; GtkTreeIter children; gboolean collapse; GList *list; gboolean selection_changed, cursor_changed; if (animate) animate = gtk_settings_get_enable_animations (gtk_widget_get_settings (GTK_WIDGET (tree_view))); remove_auto_expand_timeout (tree_view); if (node->children == NULL) return FALSE; gtk_tree_model_get_iter (tree_view->model, &iter, path); g_signal_emit (tree_view, tree_view_signals[TEST_COLLAPSE_ROW], 0, &iter, path, &collapse); if (collapse) return FALSE; /* if the prelighted node is a child of us, we want to unprelight it. We have * a chance to prelight the correct node below */ if (tree_view->prelight_tree) { GtkTreeRBTree *parent_tree; GtkTreeRBNode *parent_node; parent_tree = tree_view->prelight_tree->parent_tree; parent_node = tree_view->prelight_tree->parent_node; while (parent_tree) { if (parent_tree == tree && parent_node == node) { ensure_unprelighted (tree_view); break; } parent_node = parent_tree->parent_node; parent_tree = parent_tree->parent_tree; } } TREE_VIEW_INTERNAL_ASSERT (gtk_tree_model_iter_children (tree_view->model, &children, &iter), FALSE); for (list = tree_view->columns; list; list = list->next) { GtkTreeViewColumn *column = list->data; if (gtk_tree_view_column_get_visible (column) == FALSE) continue; if (gtk_tree_view_column_get_sizing (column) == GTK_TREE_VIEW_COLUMN_AUTOSIZE) _gtk_tree_view_column_cell_set_dirty (column, TRUE); } if (tree_view->cursor_node) { cursor_changed = (node->children == tree_view->cursor_tree) || gtk_tree_rbtree_contains (node->children, tree_view->cursor_tree); } else cursor_changed = FALSE; if (gtk_tree_row_reference_valid (tree_view->anchor)) { GtkTreePath *anchor_path = gtk_tree_row_reference_get_path (tree_view->anchor); if (gtk_tree_path_is_ancestor (path, anchor_path)) { gtk_tree_row_reference_free (tree_view->anchor); tree_view->anchor = NULL; } gtk_tree_path_free (anchor_path); } selection_changed = gtk_tree_view_unref_and_check_selection_tree (tree_view, node->children); /* Stop a pending double click */ gtk_event_controller_reset (GTK_EVENT_CONTROLLER (tree_view->click_gesture)); _gtk_tree_view_accessible_remove (tree_view, node->children, NULL); _gtk_tree_view_accessible_remove_state (tree_view, tree, node, GTK_CELL_RENDERER_EXPANDED); gtk_tree_rbtree_remove (node->children); if (cursor_changed) gtk_tree_view_real_set_cursor (tree_view, path, CLEAR_AND_SELECT | CURSOR_INVALID); if (selection_changed) g_signal_emit_by_name (tree_view->selection, "changed"); if (gtk_widget_get_mapped (GTK_WIDGET (tree_view))) { gtk_widget_queue_resize (GTK_WIDGET (tree_view)); } g_signal_emit (tree_view, tree_view_signals[ROW_COLLAPSED], 0, &iter, path); if (gtk_widget_get_mapped (GTK_WIDGET (tree_view))) update_prelight (tree_view, tree_view->event_last_x, tree_view->event_last_y); return TRUE; } /** * gtk_tree_view_collapse_row: * @tree_view: a #GtkTreeView * @path: path to a row in the @tree_view * * Collapses a row (hides its child rows, if they exist). * * Returns: %TRUE if the row was collapsed. **/ gboolean gtk_tree_view_collapse_row (GtkTreeView *tree_view, GtkTreePath *path) { GtkTreeRBTree *tree; GtkTreeRBNode *node; g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE); g_return_val_if_fail (tree_view->tree != NULL, FALSE); g_return_val_if_fail (path != NULL, FALSE); if (_gtk_tree_view_find_node (tree_view, path, &tree, &node)) return FALSE; if (tree == NULL || node->children == NULL) return FALSE; return gtk_tree_view_real_collapse_row (tree_view, path, tree, node, FALSE); } static void gtk_tree_view_map_expanded_rows_helper (GtkTreeView *tree_view, GtkTreeRBTree *tree, GtkTreePath *path, GtkTreeViewMappingFunc func, gpointer user_data) { GtkTreeRBNode *node; if (tree == NULL || tree->root == NULL) return; node = gtk_tree_rbtree_first (tree); while (node) { if (node->children) { (* func) (tree_view, path, user_data); gtk_tree_path_down (path); gtk_tree_view_map_expanded_rows_helper (tree_view, node->children, path, func, user_data); gtk_tree_path_up (path); } gtk_tree_path_next (path); node = gtk_tree_rbtree_next (tree, node); } } /** * gtk_tree_view_map_expanded_rows: * @tree_view: A #GtkTreeView * @func: (scope call): A function to be called * @data: User data to be passed to the function. * * Calls @func on all expanded rows. **/ void gtk_tree_view_map_expanded_rows (GtkTreeView *tree_view, GtkTreeViewMappingFunc func, gpointer user_data) { GtkTreePath *path; g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); g_return_if_fail (func != NULL); path = gtk_tree_path_new_first (); gtk_tree_view_map_expanded_rows_helper (tree_view, tree_view->tree, path, func, user_data); gtk_tree_path_free (path); } /** * gtk_tree_view_row_expanded: * @tree_view: A #GtkTreeView. * @path: A #GtkTreePath to test expansion state. * * Returns %TRUE if the node pointed to by @path is expanded in @tree_view. * * Returns: %TRUE if #path is expanded. **/ gboolean gtk_tree_view_row_expanded (GtkTreeView *tree_view, GtkTreePath *path) { GtkTreeRBTree *tree; GtkTreeRBNode *node; g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE); g_return_val_if_fail (path != NULL, FALSE); _gtk_tree_view_find_node (tree_view, path, &tree, &node); if (node == NULL) return FALSE; return (node->children != NULL); } /** * gtk_tree_view_get_reorderable: * @tree_view: a #GtkTreeView * * Retrieves whether the user can reorder the tree via drag-and-drop. See * gtk_tree_view_set_reorderable(). * * Returns: %TRUE if the tree can be reordered. **/ gboolean gtk_tree_view_get_reorderable (GtkTreeView *tree_view) { g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE); return tree_view->reorderable; } /** * gtk_tree_view_set_reorderable: * @tree_view: A #GtkTreeView. * @reorderable: %TRUE, if the tree can be reordered. * * This function is a convenience function to allow you to reorder * models that support the #GtkTreeDragSourceIface and the * #GtkTreeDragDestIface. Both #GtkTreeStore and #GtkListStore support * these. If @reorderable is %TRUE, then the user can reorder the * model by dragging and dropping rows. The developer can listen to * these changes by connecting to the model’s #GtkTreeModel::row-inserted * and #GtkTreeModel::row-deleted signals. The reordering is implemented * by setting up the tree view as a drag source and destination. * Therefore, drag and drop can not be used in a reorderable view for any * other purpose. * * This function does not give you any degree of control over the order -- any * reordering is allowed. If more control is needed, you should probably * handle drag and drop manually. **/ void gtk_tree_view_set_reorderable (GtkTreeView *tree_view, gboolean reorderable) { g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); reorderable = reorderable != FALSE; if (tree_view->reorderable == reorderable) return; if (reorderable) { GdkContentFormats *formats; formats = gdk_content_formats_new_for_gtype (GTK_TYPE_TREE_ROW_DATA); gtk_tree_view_enable_model_drag_source (tree_view, GDK_BUTTON1_MASK, formats, GDK_ACTION_MOVE); gtk_tree_view_enable_model_drag_dest (tree_view, formats, GDK_ACTION_MOVE); gdk_content_formats_unref (formats); } else { gtk_tree_view_unset_rows_drag_source (tree_view); gtk_tree_view_unset_rows_drag_dest (tree_view); } tree_view->reorderable = reorderable; g_object_notify_by_pspec (G_OBJECT (tree_view), tree_view_props[PROP_REORDERABLE]); } static void gtk_tree_view_real_set_cursor (GtkTreeView *tree_view, GtkTreePath *path, SetCursorFlags flags) { if (!(flags & CURSOR_INVALID) && tree_view->cursor_node) { _gtk_tree_view_accessible_remove_state (tree_view, tree_view->cursor_tree, tree_view->cursor_node, GTK_CELL_RENDERER_FOCUSED); gtk_widget_queue_draw (GTK_WIDGET (tree_view)); } /* One cannot set the cursor on a separator. Also, if * _gtk_tree_view_find_node returns TRUE, it ran out of tree * before finding the tree and node belonging to path. The * path maps to a non-existing path and we will silently bail out. * We unset tree and node to avoid further processing. */ if (path == NULL || row_is_separator (tree_view, NULL, path) || _gtk_tree_view_find_node (tree_view, path, &tree_view->cursor_tree, &tree_view->cursor_node)) { tree_view->cursor_tree = NULL; tree_view->cursor_node = NULL; } if (tree_view->cursor_node != NULL) { GtkTreeRBTree *new_tree = NULL; GtkTreeRBNode *new_node = NULL; if ((flags & CLEAR_AND_SELECT) && !tree_view->modify_selection_pressed) { GtkTreeSelectMode mode = 0; if (tree_view->extend_selection_pressed) mode |= GTK_TREE_SELECT_MODE_EXTEND; _gtk_tree_selection_internal_select_node (tree_view->selection, tree_view->cursor_node, tree_view->cursor_tree, path, mode, FALSE); } /* We have to re-find tree and node here again, somebody might have * cleared the node or the whole tree in the GtkTreeSelection::changed * callback. If the nodes differ we bail out here. */ _gtk_tree_view_find_node (tree_view, path, &new_tree, &new_node); if (tree_view->cursor_node == NULL || tree_view->cursor_node != new_node) return; if (flags & CLAMP_NODE) { gtk_tree_view_clamp_node_visible (tree_view, tree_view->cursor_tree, tree_view->cursor_node); gtk_widget_queue_draw (GTK_WIDGET (tree_view)); } _gtk_tree_view_accessible_add_state (tree_view, tree_view->cursor_tree, tree_view->cursor_node, GTK_CELL_RENDERER_FOCUSED); } if (!gtk_widget_in_destruction (GTK_WIDGET (tree_view))) g_signal_emit (tree_view, tree_view_signals[CURSOR_CHANGED], 0); } /** * gtk_tree_view_get_cursor: * @tree_view: A #GtkTreeView * @path: (out) (transfer full) (optional) (nullable): A pointer to be * filled with the current cursor path, or %NULL * @focus_column: (out) (transfer none) (optional) (nullable): A * pointer to be filled with the current focus column, or %NULL * * Fills in @path and @focus_column with the current path and focus column. If * the cursor isn’t currently set, then *@path will be %NULL. If no column * currently has focus, then *@focus_column will be %NULL. * * The returned #GtkTreePath must be freed with gtk_tree_path_free() when * you are done with it. **/ void gtk_tree_view_get_cursor (GtkTreeView *tree_view, GtkTreePath **path, GtkTreeViewColumn **focus_column) { g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); if (path) { if (tree_view->cursor_node) *path = _gtk_tree_path_new_from_rbtree (tree_view->cursor_tree, tree_view->cursor_node); else *path = NULL; } if (focus_column) { *focus_column = tree_view->focus_column; } } /** * gtk_tree_view_set_cursor: * @tree_view: A #GtkTreeView * @path: A #GtkTreePath * @focus_column: (allow-none): A #GtkTreeViewColumn, or %NULL * @start_editing: %TRUE if the specified cell should start being edited. * * Sets the current keyboard focus to be at @path, and selects it. This is * useful when you want to focus the user’s attention on a particular row. If * @focus_column is not %NULL, then focus is given to the column specified by * it. Additionally, if @focus_column is specified, and @start_editing is * %TRUE, then editing should be started in the specified cell. * This function is often followed by @gtk_widget_grab_focus (@tree_view) * in order to give keyboard focus to the widget. Please note that editing * can only happen when the widget is realized. * * If @path is invalid for @model, the current cursor (if any) will be unset * and the function will return without failing. **/ void gtk_tree_view_set_cursor (GtkTreeView *tree_view, GtkTreePath *path, GtkTreeViewColumn *focus_column, gboolean start_editing) { gtk_tree_view_set_cursor_on_cell (tree_view, path, focus_column, NULL, start_editing); } /** * gtk_tree_view_set_cursor_on_cell: * @tree_view: A #GtkTreeView * @path: A #GtkTreePath * @focus_column: (allow-none): A #GtkTreeViewColumn, or %NULL * @focus_cell: (allow-none): A #GtkCellRenderer, or %NULL * @start_editing: %TRUE if the specified cell should start being edited. * * Sets the current keyboard focus to be at @path, and selects it. This is * useful when you want to focus the user’s attention on a particular row. If * @focus_column is not %NULL, then focus is given to the column specified by * it. If @focus_column and @focus_cell are not %NULL, and @focus_column * contains 2 or more editable or activatable cells, then focus is given to * the cell specified by @focus_cell. Additionally, if @focus_column is * specified, and @start_editing is %TRUE, then editing should be started in * the specified cell. This function is often followed by * @gtk_widget_grab_focus (@tree_view) in order to give keyboard focus to the * widget. Please note that editing can only happen when the widget is * realized. * * If @path is invalid for @model, the current cursor (if any) will be unset * and the function will return without failing. **/ void gtk_tree_view_set_cursor_on_cell (GtkTreeView *tree_view, GtkTreePath *path, GtkTreeViewColumn *focus_column, GtkCellRenderer *focus_cell, gboolean start_editing) { g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); g_return_if_fail (path != NULL); g_return_if_fail (focus_column == NULL || GTK_IS_TREE_VIEW_COLUMN (focus_column)); if (!tree_view->model) return; if (focus_cell) { g_return_if_fail (focus_column); g_return_if_fail (GTK_IS_CELL_RENDERER (focus_cell)); } /* cancel the current editing, if it exists */ if (tree_view->edited_column && gtk_cell_area_get_edit_widget (gtk_cell_layout_get_area (GTK_CELL_LAYOUT (tree_view->edited_column)))) gtk_tree_view_stop_editing (tree_view, TRUE); gtk_tree_view_real_set_cursor (tree_view, path, CLEAR_AND_SELECT | CLAMP_NODE); if (focus_column && gtk_tree_view_column_get_visible (focus_column)) { GList *list; gboolean column_in_tree = FALSE; for (list = tree_view->columns; list; list = list->next) if (list->data == focus_column) { column_in_tree = TRUE; break; } g_return_if_fail (column_in_tree); _gtk_tree_view_set_focus_column (tree_view, focus_column); if (focus_cell) gtk_tree_view_column_focus_cell (focus_column, focus_cell); if (start_editing) gtk_tree_view_start_editing (tree_view, path, TRUE); } } /** * gtk_tree_view_get_path_at_pos: * @tree_view: A #GtkTreeView. * @x: The x position to be identified (relative to bin_window). * @y: The y position to be identified (relative to bin_window). * @path: (out) (optional) (nullable): A pointer to a #GtkTreePath * pointer to be filled in, or %NULL * @column: (out) (transfer none) (optional) (nullable): A pointer to * a #GtkTreeViewColumn pointer to be filled in, or %NULL * @cell_x: (out) (optional): A pointer where the X coordinate * relative to the cell can be placed, or %NULL * @cell_y: (out) (optional): A pointer where the Y coordinate * relative to the cell can be placed, or %NULL * * Finds the path at the point (@x, @y), relative to bin_window coordinates. * That is, @x and @y are relative to an events coordinates. Widget-relative * coordinates must be converted using * gtk_tree_view_convert_widget_to_bin_window_coords(). It is primarily for * things like popup menus. If @path is non-%NULL, then it will be filled * with the #GtkTreePath at that point. This path should be freed with * gtk_tree_path_free(). If @column is non-%NULL, then it will be filled * with the column at that point. @cell_x and @cell_y return the coordinates * relative to the cell background (i.e. the @background_area passed to * gtk_cell_renderer_render()). This function is only meaningful if * @tree_view is realized. Therefore this function will always return %FALSE * if @tree_view is not realized or does not have a model. * * For converting widget coordinates (eg. the ones you get from * GtkWidget::query-tooltip), please see * gtk_tree_view_convert_widget_to_bin_window_coords(). * * Returns: %TRUE if a row exists at that coordinate. **/ gboolean gtk_tree_view_get_path_at_pos (GtkTreeView *tree_view, gint x, gint y, GtkTreePath **path, GtkTreeViewColumn **column, gint *cell_x, gint *cell_y) { GtkTreeRBTree *tree; GtkTreeRBNode *node; gint y_offset; g_return_val_if_fail (tree_view != NULL, FALSE); if (path) *path = NULL; if (column) *column = NULL; if (tree_view->tree == NULL) return FALSE; if (x > gtk_adjustment_get_upper (tree_view->hadjustment)) return FALSE; if (x < 0 || y < 0) return FALSE; if (column || cell_x) { GtkTreeViewColumn *tmp_column; GtkTreeViewColumn *last_column = NULL; GList *list; gint remaining_x = x; gboolean found = FALSE; gboolean rtl; gint width; rtl = (_gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL); for (list = (rtl ? g_list_last (tree_view->columns) : g_list_first (tree_view->columns)); list; list = (rtl ? list->prev : list->next)) { tmp_column = list->data; if (gtk_tree_view_column_get_visible (tmp_column) == FALSE) continue; last_column = tmp_column; width = gtk_tree_view_column_get_width (tmp_column); if (remaining_x < width) { found = TRUE; if (column) *column = tmp_column; if (cell_x) *cell_x = remaining_x; break; } remaining_x -= width; } /* If found is FALSE and there is a last_column, then it the remainder * space is in that area */ if (!found) { if (last_column) { if (column) *column = last_column; if (cell_x) *cell_x = gtk_tree_view_column_get_width (last_column) + remaining_x; } else { return FALSE; } } } y_offset = gtk_tree_rbtree_find_offset (tree_view->tree, TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, y), &tree, &node); if (tree == NULL) return FALSE; if (cell_y) *cell_y = y_offset; if (path) *path = _gtk_tree_path_new_from_rbtree (tree, node); return TRUE; } static inline gint gtk_tree_view_get_cell_area_height (GtkTreeView *tree_view, GtkTreeRBNode *node) { int expander_size = gtk_tree_view_get_expander_size (tree_view); int height; /* The "cell" areas are the cell_area passed in to gtk_cell_renderer_render(), * i.e. just the cells, no spacing. * * The cell area height is at least expander_size - vertical_separator. * For regular nodes, the height is then at least expander_size. We should * be able to enforce the expander_size minimum here, because this * function will not be called for irregular (e.g. separator) rows. */ height = gtk_tree_view_get_row_height (tree_view, node); if (height < expander_size) height = expander_size; return height; } static inline gint gtk_tree_view_get_cell_area_y_offset (GtkTreeView *tree_view, GtkTreeRBTree *tree, GtkTreeRBNode *node) { int offset; offset = gtk_tree_view_get_row_y_offset (tree_view, tree, node); return offset; } /** * gtk_tree_view_get_cell_area: * @tree_view: a #GtkTreeView * @path: (allow-none): a #GtkTreePath for the row, or %NULL to get only horizontal coordinates * @column: (allow-none): a #GtkTreeViewColumn for the column, or %NULL to get only vertical coordinates * @rect: (out): rectangle to fill with cell rect * * Fills the bounding rectangle in bin_window coordinates for the cell at the * row specified by @path and the column specified by @column. If @path is * %NULL, or points to a path not currently displayed, the @y and @height fields * of the rectangle will be filled with 0. If @column is %NULL, the @x and @width * fields will be filled with 0. The sum of all cell rects does not cover the * entire tree; there are extra pixels in between rows, for example. The * returned rectangle is equivalent to the @cell_area passed to * gtk_cell_renderer_render(). This function is only valid if @tree_view is * realized. **/ void gtk_tree_view_get_cell_area (GtkTreeView *tree_view, GtkTreePath *path, GtkTreeViewColumn *column, GdkRectangle *rect) { GtkTreeRBTree *tree = NULL; GtkTreeRBNode *node = NULL; g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column)); g_return_if_fail (rect != NULL); g_return_if_fail (!column || gtk_tree_view_column_get_tree_view (column) == (GtkWidget *) tree_view); g_return_if_fail (gtk_widget_get_realized (GTK_WIDGET (tree_view))); rect->x = 0; rect->y = 0; rect->width = 0; rect->height = 0; if (column) { rect->x = gtk_tree_view_column_get_x_offset (column) + _TREE_VIEW_HORIZONTAL_SEPARATOR / 2; rect->width = gtk_tree_view_column_get_width (column) - _TREE_VIEW_HORIZONTAL_SEPARATOR; } if (path) { gboolean ret = _gtk_tree_view_find_node (tree_view, path, &tree, &node); /* Get vertical coords */ if ((!ret && tree == NULL) || ret) return; if (row_is_separator (tree_view, NULL, path)) { /* There isn't really a "cell area" for separator, so we * return the y, height values for background area instead. */ rect->y = gtk_tree_view_get_row_y_offset (tree_view, tree, node); rect->height = gtk_tree_view_get_row_height (tree_view, node); } else { rect->y = gtk_tree_view_get_cell_area_y_offset (tree_view, tree, node); rect->height = gtk_tree_view_get_cell_area_height (tree_view, node); } if (column && gtk_tree_view_is_expander_column (tree_view, column)) { gint depth = gtk_tree_path_get_depth (path); gboolean rtl; rtl = _gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL; if (!rtl) rect->x += (depth - 1) * tree_view->level_indentation; rect->width -= (depth - 1) * tree_view->level_indentation; if (gtk_tree_view_draw_expanders (tree_view)) { int expander_size = gtk_tree_view_get_expander_size (tree_view); if (!rtl) rect->x += depth * expander_size; rect->width -= depth * expander_size; } rect->width = MAX (rect->width, 0); } } } static inline gint gtk_tree_view_get_row_height (GtkTreeView *tree_view, GtkTreeRBNode *node) { int expander_size = gtk_tree_view_get_expander_size (tree_view); int height; /* The "background" areas of all rows/cells add up to cover the entire tree. * The background includes all inter-row and inter-cell spacing. * * If the row pointed at by node does not have a height set, we default * to expander_size, which is the minimum height for regular nodes. * Non-regular nodes (e.g. separators) can have a height set smaller * than expander_size and should not be overruled here. */ height = GTK_TREE_RBNODE_GET_HEIGHT (node); if (height <= 0) height = expander_size; return height; } static inline gint gtk_tree_view_get_row_y_offset (GtkTreeView *tree_view, GtkTreeRBTree *tree, GtkTreeRBNode *node) { int offset; offset = gtk_tree_rbtree_node_find_offset (tree, node); return RBTREE_Y_TO_TREE_WINDOW_Y (tree_view, offset); } /** * gtk_tree_view_get_background_area: * @tree_view: a #GtkTreeView * @path: (allow-none): a #GtkTreePath for the row, or %NULL to get only horizontal coordinates * @column: (allow-none): a #GtkTreeViewColumn for the column, or %NULL to get only vertical coordiantes * @rect: (out): rectangle to fill with cell background rect * * Fills the bounding rectangle in bin_window coordinates for the cell at the * row specified by @path and the column specified by @column. If @path is * %NULL, or points to a node not found in the tree, the @y and @height fields of * the rectangle will be filled with 0. If @column is %NULL, the @x and @width * fields will be filled with 0. The returned rectangle is equivalent to the * @background_area passed to gtk_cell_renderer_render(). These background * areas tile to cover the entire bin window. Contrast with the @cell_area, * returned by gtk_tree_view_get_cell_area(), which returns only the cell * itself, excluding surrounding borders and the tree expander area. * **/ void gtk_tree_view_get_background_area (GtkTreeView *tree_view, GtkTreePath *path, GtkTreeViewColumn *column, GdkRectangle *rect) { GtkTreeRBTree *tree = NULL; GtkTreeRBNode *node = NULL; g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column)); g_return_if_fail (rect != NULL); rect->x = 0; rect->y = 0; rect->width = 0; rect->height = 0; if (path) { /* Get vertical coords */ if (!_gtk_tree_view_find_node (tree_view, path, &tree, &node) && tree == NULL) return; rect->y = gtk_tree_view_get_row_y_offset (tree_view, tree, node); rect->height = gtk_tree_view_get_row_height (tree_view, node); } if (column) { gint x2 = 0; gtk_tree_view_get_background_xrange (tree_view, tree, column, &rect->x, &x2); rect->width = x2 - rect->x; } } /** * gtk_tree_view_get_visible_rect: * @tree_view: a #GtkTreeView * @visible_rect: (out): rectangle to fill * * Fills @visible_rect with the currently-visible region of the * buffer, in tree coordinates. Convert to bin_window coordinates with * gtk_tree_view_convert_tree_to_bin_window_coords(). * Tree coordinates start at 0,0 for row 0 of the tree, and cover the entire * scrollable area of the tree. **/ void gtk_tree_view_get_visible_rect (GtkTreeView *tree_view, GdkRectangle *visible_rect) { GtkAllocation allocation; GtkWidget *widget; g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); widget = GTK_WIDGET (tree_view); if (visible_rect) { gtk_widget_get_allocation (widget, &allocation); visible_rect->x = gtk_adjustment_get_value (tree_view->hadjustment); visible_rect->y = gtk_adjustment_get_value (tree_view->vadjustment); visible_rect->width = allocation.width; visible_rect->height = allocation.height - gtk_tree_view_get_effective_header_height (tree_view); } } /** * gtk_tree_view_convert_widget_to_tree_coords: * @tree_view: a #GtkTreeView * @wx: X coordinate relative to the widget * @wy: Y coordinate relative to the widget * @tx: (out): return location for tree X coordinate * @ty: (out): return location for tree Y coordinate * * Converts widget coordinates to coordinates for the * tree (the full scrollable area of the tree). **/ void gtk_tree_view_convert_widget_to_tree_coords (GtkTreeView *tree_view, gint wx, gint wy, gint *tx, gint *ty) { gint x, y; g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, wx, wy, &x, &y); gtk_tree_view_convert_bin_window_to_tree_coords (tree_view, x, y, tx, ty); } /** * gtk_tree_view_convert_tree_to_widget_coords: * @tree_view: a #GtkTreeView * @tx: X coordinate relative to the tree * @ty: Y coordinate relative to the tree * @wx: (out): return location for widget X coordinate * @wy: (out): return location for widget Y coordinate * * Converts tree coordinates (coordinates in full scrollable area of the tree) * to widget coordinates. **/ void gtk_tree_view_convert_tree_to_widget_coords (GtkTreeView *tree_view, gint tx, gint ty, gint *wx, gint *wy) { gint x, y; g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); gtk_tree_view_convert_tree_to_bin_window_coords (tree_view, tx, ty, &x, &y); gtk_tree_view_convert_bin_window_to_widget_coords (tree_view, x, y, wx, wy); } /** * gtk_tree_view_convert_widget_to_bin_window_coords: * @tree_view: a #GtkTreeView * @wx: X coordinate relative to the widget * @wy: Y coordinate relative to the widget * @bx: (out): return location for bin_window X coordinate * @by: (out): return location for bin_window Y coordinate * * Converts widget coordinates to coordinates for the bin_window. **/ void gtk_tree_view_convert_widget_to_bin_window_coords (GtkTreeView *tree_view, gint wx, gint wy, gint *bx, gint *by) { g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); if (bx) *bx = wx + gtk_adjustment_get_value (tree_view->hadjustment); if (by) *by = wy - gtk_tree_view_get_effective_header_height (tree_view); } /** * gtk_tree_view_convert_bin_window_to_widget_coords: * @tree_view: a #GtkTreeView * @bx: bin_window X coordinate * @by: bin_window Y coordinate * @wx: (out): return location for widget X coordinate * @wy: (out): return location for widget Y coordinate * * Converts bin_window coordinates to widget relative coordinates. **/ void gtk_tree_view_convert_bin_window_to_widget_coords (GtkTreeView *tree_view, gint bx, gint by, gint *wx, gint *wy) { g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); if (wx) *wx = bx - gtk_adjustment_get_value (tree_view->hadjustment); if (wy) *wy = by + gtk_tree_view_get_effective_header_height (tree_view); } /** * gtk_tree_view_convert_tree_to_bin_window_coords: * @tree_view: a #GtkTreeView * @tx: tree X coordinate * @ty: tree Y coordinate * @bx: (out): return location for X coordinate relative to bin_window * @by: (out): return location for Y coordinate relative to bin_window * * Converts tree coordinates (coordinates in full scrollable area of the tree) * to bin_window coordinates. **/ void gtk_tree_view_convert_tree_to_bin_window_coords (GtkTreeView *tree_view, gint tx, gint ty, gint *bx, gint *by) { g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); if (bx) *bx = tx; if (by) *by = ty - tree_view->dy; } /** * gtk_tree_view_convert_bin_window_to_tree_coords: * @tree_view: a #GtkTreeView * @bx: X coordinate relative to bin_window * @by: Y coordinate relative to bin_window * @tx: (out): return location for tree X coordinate * @ty: (out): return location for tree Y coordinate * * Converts bin_window coordinates to coordinates for the * tree (the full scrollable area of the tree). **/ void gtk_tree_view_convert_bin_window_to_tree_coords (GtkTreeView *tree_view, gint bx, gint by, gint *tx, gint *ty) { g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); if (tx) *tx = bx; if (ty) *ty = by + tree_view->dy; } /** * gtk_tree_view_get_visible_range: * @tree_view: A #GtkTreeView * @start_path: (out) (allow-none): Return location for start of region, * or %NULL. * @end_path: (out) (allow-none): Return location for end of region, or %NULL. * * Sets @start_path and @end_path to be the first and last visible path. * Note that there may be invisible paths in between. * * The paths should be freed with gtk_tree_path_free() after use. * * Returns: %TRUE, if valid paths were placed in @start_path and @end_path. **/ gboolean gtk_tree_view_get_visible_range (GtkTreeView *tree_view, GtkTreePath **start_path, GtkTreePath **end_path) { GtkTreeRBTree *tree; GtkTreeRBNode *node; gboolean retval; g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE); if (!tree_view->tree) return FALSE; retval = TRUE; if (start_path) { gtk_tree_rbtree_find_offset (tree_view->tree, TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, 0), &tree, &node); if (node) *start_path = _gtk_tree_path_new_from_rbtree (tree, node); else retval = FALSE; } if (end_path) { gint y; if (gtk_tree_view_get_height (tree_view) < gtk_adjustment_get_page_size (tree_view->vadjustment)) y = gtk_tree_view_get_height (tree_view) - 1; else y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, gtk_adjustment_get_page_size (tree_view->vadjustment)) - 1; gtk_tree_rbtree_find_offset (tree_view->tree, y, &tree, &node); if (node) *end_path = _gtk_tree_path_new_from_rbtree (tree, node); else retval = FALSE; } return retval; } /** * gtk_tree_view_is_blank_at_pos: * @tree_view: A #GtkTreeView * @x: The x position to be identified (relative to bin_window) * @y: The y position to be identified (relative to bin_window) * @path: (out) (optional) (nullable): A pointer to a #GtkTreePath pointer to * be filled in, or %NULL * @column: (out) (transfer none) (optional) (nullable): A pointer to a * #GtkTreeViewColumn pointer to be filled in, or %NULL * @cell_x: (out) (optional): A pointer where the X coordinate relative to the * cell can be placed, or %NULL * @cell_y: (out) (optional): A pointer where the Y coordinate relative to the * cell can be placed, or %NULL * * Determine whether the point (@x, @y) in @tree_view is blank, that is no * cell content nor an expander arrow is drawn at the location. If so, the * location can be considered as the background. You might wish to take * special action on clicks on the background, such as clearing a current * selection, having a custom context menu or starting rubber banding. * * The @x and @y coordinate that are provided must be relative to bin_window * coordinates. Widget-relative coordinates must be converted using * gtk_tree_view_convert_widget_to_bin_window_coords(). * * For converting widget coordinates (eg. the ones you get from * GtkWidget::query-tooltip), please see * gtk_tree_view_convert_widget_to_bin_window_coords(). * * The @path, @column, @cell_x and @cell_y arguments will be filled in * likewise as for gtk_tree_view_get_path_at_pos(). Please see * gtk_tree_view_get_path_at_pos() for more information. * * Returns: %TRUE if the area at the given coordinates is blank, * %FALSE otherwise. */ gboolean gtk_tree_view_is_blank_at_pos (GtkTreeView *tree_view, gint x, gint y, GtkTreePath **path, GtkTreeViewColumn **column, gint *cell_x, gint *cell_y) { GtkTreeRBTree *tree; GtkTreeRBNode *node; GtkTreeIter iter; GtkTreePath *real_path; GtkTreeViewColumn *real_column; GdkRectangle cell_area, background_area; g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE); if (!gtk_tree_view_get_path_at_pos (tree_view, x, y, &real_path, &real_column, cell_x, cell_y)) /* If there's no path here, it is blank */ return TRUE; if (path) *path = real_path; if (column) *column = real_column; gtk_tree_model_get_iter (tree_view->model, &iter, real_path); _gtk_tree_view_find_node (tree_view, real_path, &tree, &node); /* Check if there's an expander arrow at (x, y) */ if (real_column == tree_view->expander_column && gtk_tree_view_draw_expanders (tree_view)) { gboolean over_arrow; over_arrow = coords_are_over_arrow (tree_view, tree, node, x, y); if (over_arrow) { if (!path) gtk_tree_path_free (real_path); return FALSE; } } /* Otherwise, have the column see if there's a cell at (x, y) */ gtk_tree_view_column_cell_set_cell_data (real_column, tree_view->model, &iter, GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_PARENT), node->children ? TRUE : FALSE); gtk_tree_view_get_background_area (tree_view, real_path, real_column, &background_area); gtk_tree_view_get_cell_area (tree_view, real_path, real_column, &cell_area); if (!path) gtk_tree_path_free (real_path); return _gtk_tree_view_column_is_blank_at_pos (real_column, &cell_area, &background_area, x, y); } static void unset_reorderable (GtkTreeView *tree_view) { if (tree_view->reorderable) { tree_view->reorderable = FALSE; g_object_notify_by_pspec (G_OBJECT (tree_view), tree_view_props[PROP_REORDERABLE]); } } /** * gtk_tree_view_enable_model_drag_source: * @tree_view: a #GtkTreeView * @start_button_mask: Mask of allowed buttons to start drag * @formats: the target formats that the drag will support * @actions: the bitmask of possible actions for a drag from this * widget * * Turns @tree_view into a drag source for automatic DND. Calling this * method sets #GtkTreeView:reorderable to %FALSE. **/ void gtk_tree_view_enable_model_drag_source (GtkTreeView *tree_view, GdkModifierType start_button_mask, GdkContentFormats *formats, GdkDragAction actions) { TreeViewDragInfo *di; g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); di = ensure_info (tree_view); di->source_formats = gdk_content_formats_ref (formats); di->source_actions = actions; di->drag = NULL; di->start_button_mask = start_button_mask; di->source_set = TRUE; unset_reorderable (tree_view); } /** * gtk_tree_view_enable_model_drag_dest: * @tree_view: a #GtkTreeView * @formats: the target formats that the drag will support * @actions: the bitmask of possible actions for a drag from this * widget * * Turns @tree_view into a drop destination for automatic DND. Calling * this method sets #GtkTreeView:reorderable to %FALSE. * * Returns: (transfer none): the drop target that has been attached **/ GtkDropTarget * gtk_tree_view_enable_model_drag_dest (GtkTreeView *tree_view, GdkContentFormats *formats, GdkDragAction actions) { TreeViewDragInfo *di; GtkCssNode *widget_node; g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL); di = ensure_info (tree_view); di->dest_set = TRUE; di->dest = gtk_drop_target_new (gdk_content_formats_ref (formats), actions); g_signal_connect (di->dest, "drag-leave", G_CALLBACK (gtk_tree_view_drag_leave), tree_view); g_signal_connect (di->dest, "drag-motion", G_CALLBACK (gtk_tree_view_drag_motion), tree_view); g_signal_connect (di->dest, "drag-drop", G_CALLBACK (gtk_tree_view_drag_drop), tree_view); gtk_widget_add_controller (GTK_WIDGET (tree_view), GTK_EVENT_CONTROLLER (di->dest)); g_object_ref (di->dest); widget_node = gtk_widget_get_css_node (GTK_WIDGET (tree_view)); di->cssnode = gtk_css_node_new (); gtk_css_node_set_name (di->cssnode, g_quark_from_static_string ("dndtarget")); gtk_css_node_set_parent (di->cssnode, widget_node); gtk_css_node_set_state (di->cssnode, gtk_css_node_get_state (widget_node)); g_object_unref (di->cssnode); unset_reorderable (tree_view); return di->dest; } /** * gtk_tree_view_unset_rows_drag_source: * @tree_view: a #GtkTreeView * * Undoes the effect of * gtk_tree_view_enable_model_drag_source(). Calling this method sets * #GtkTreeView:reorderable to %FALSE. **/ void gtk_tree_view_unset_rows_drag_source (GtkTreeView *tree_view) { TreeViewDragInfo *di; g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); di = get_info (tree_view); if (di) { if (di->source_set) { g_clear_pointer (&di->source_formats, gdk_content_formats_unref); di->source_set = FALSE; } if (!di->dest_set && !di->source_set) remove_info (tree_view); } unset_reorderable (tree_view); } /** * gtk_tree_view_unset_rows_drag_dest: * @tree_view: a #GtkTreeView * * Undoes the effect of * gtk_tree_view_enable_model_drag_dest(). Calling this method sets * #GtkTreeView:reorderable to %FALSE. **/ void gtk_tree_view_unset_rows_drag_dest (GtkTreeView *tree_view) { TreeViewDragInfo *di; g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); di = get_info (tree_view); if (di) { if (di->dest_set) { gtk_widget_remove_controller (GTK_WIDGET (tree_view), GTK_EVENT_CONTROLLER (di->dest)); di->dest = NULL; di->dest_set = FALSE; gtk_css_node_set_parent (di->cssnode, NULL); di->cssnode = NULL; } if (!di->dest_set && !di->source_set) remove_info (tree_view); } unset_reorderable (tree_view); } /** * gtk_tree_view_set_drag_dest_row: * @tree_view: a #GtkTreeView * @path: (allow-none): The path of the row to highlight, or %NULL * @pos: Specifies whether to drop before, after or into the row * * Sets the row that is highlighted for feedback. * If @path is %NULL, an existing highlight is removed. */ void gtk_tree_view_set_drag_dest_row (GtkTreeView *tree_view, GtkTreePath *path, GtkTreeViewDropPosition pos) { GtkTreePath *current_dest; /* Note; this function is exported to allow a custom DND * implementation, so it can't touch TreeViewDragInfo */ g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); current_dest = NULL; if (tree_view->drag_dest_row) { current_dest = gtk_tree_row_reference_get_path (tree_view->drag_dest_row); gtk_tree_row_reference_free (tree_view->drag_dest_row); } /* special case a drop on an empty model */ tree_view->empty_view_drop = 0; if (pos == GTK_TREE_VIEW_DROP_BEFORE && path && gtk_tree_path_get_depth (path) == 1 && gtk_tree_path_get_indices (path)[0] == 0) { gint n_children; n_children = gtk_tree_model_iter_n_children (tree_view->model, NULL); if (!n_children) tree_view->empty_view_drop = 1; } tree_view->drag_dest_pos = pos; if (path) { tree_view->drag_dest_row = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->model, path); gtk_widget_queue_draw (GTK_WIDGET (tree_view)); } else tree_view->drag_dest_row = NULL; if (current_dest) { gtk_widget_queue_draw (GTK_WIDGET (tree_view)); gtk_tree_path_free (current_dest); } } /** * gtk_tree_view_get_drag_dest_row: * @tree_view: a #GtkTreeView * @path: (out) (optional) (nullable): Return location for the path of the highlighted row, or %NULL. * @pos: (out) (optional): Return location for the drop position, or %NULL * * Gets information about the row that is highlighted for feedback. **/ void gtk_tree_view_get_drag_dest_row (GtkTreeView *tree_view, GtkTreePath **path, GtkTreeViewDropPosition *pos) { g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); if (path) { if (tree_view->drag_dest_row) *path = gtk_tree_row_reference_get_path (tree_view->drag_dest_row); else { if (tree_view->empty_view_drop) *path = gtk_tree_path_new_from_indices (0, -1); else *path = NULL; } } if (pos) *pos = tree_view->drag_dest_pos; } /** * gtk_tree_view_get_dest_row_at_pos: * @tree_view: a #GtkTreeView * @drag_x: the position to determine the destination row for * @drag_y: the position to determine the destination row for * @path: (out) (optional) (nullable): Return location for the path of * the highlighted row, or %NULL. * @pos: (out) (optional): Return location for the drop position, or * %NULL * * Determines the destination row for a given position. @drag_x and * @drag_y are expected to be in widget coordinates. This function is only * meaningful if @tree_view is realized. Therefore this function will always * return %FALSE if @tree_view is not realized or does not have a model. * * Returns: whether there is a row at the given position, %TRUE if this * is indeed the case. **/ gboolean gtk_tree_view_get_dest_row_at_pos (GtkTreeView *tree_view, gint drag_x, gint drag_y, GtkTreePath **path, GtkTreeViewDropPosition *pos) { gint cell_y; gint bin_x, bin_y; gdouble offset_into_row; gdouble fourth; GdkRectangle cell; GtkTreeViewColumn *column = NULL; GtkTreePath *tmp_path = NULL; /* Note; this function is exported to allow a custom DND * implementation, so it can't touch TreeViewDragInfo */ g_return_val_if_fail (tree_view != NULL, FALSE); g_return_val_if_fail (drag_x >= 0, FALSE); g_return_val_if_fail (drag_y >= 0, FALSE); if (path) *path = NULL; if (tree_view->tree == NULL) return FALSE; /* If in the top fourth of a row, we drop before that row; if * in the bottom fourth, drop after that row; if in the middle, * and the row has children, drop into the row. */ gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, drag_x, drag_y, &bin_x, &bin_y); if (!gtk_tree_view_get_path_at_pos (tree_view, bin_x, bin_y, &tmp_path, &column, NULL, &cell_y)) return FALSE; gtk_tree_view_get_background_area (tree_view, tmp_path, column, &cell); offset_into_row = cell_y; if (path) *path = tmp_path; else gtk_tree_path_free (tmp_path); tmp_path = NULL; fourth = cell.height / 4.0; if (pos) { if (offset_into_row < fourth) { *pos = GTK_TREE_VIEW_DROP_BEFORE; } else if (offset_into_row < (cell.height / 2.0)) { *pos = GTK_TREE_VIEW_DROP_INTO_OR_BEFORE; } else if (offset_into_row < cell.height - fourth) { *pos = GTK_TREE_VIEW_DROP_INTO_OR_AFTER; } else { *pos = GTK_TREE_VIEW_DROP_AFTER; } } return TRUE; } static void gtk_treeview_snapshot_border (GtkSnapshot *snapshot, const graphene_rect_t *rect) { GskRoundedRect rounded; GskRenderNode *border_node; gsk_rounded_rect_init_from_rect (&rounded, rect, 0); #define BLACK { 0, 0, 0, 1 } border_node = gsk_border_node_new (&rounded, (float[4]) { 1, 1, 1, 1 }, (GdkRGBA[4]) { BLACK, BLACK, BLACK, BLACK }); #undef BLACK gtk_snapshot_append_node (snapshot, border_node); gsk_render_node_unref (border_node); } /* KEEP IN SYNC WITH GTK_TREE_VIEW_BIN_EXPOSE */ /** * gtk_tree_view_create_row_drag_icon: * @tree_view: a #GtkTreeView * @path: a #GtkTreePath in @tree_view * * Creates a #cairo_surface_t representation of the row at @path. * This image is used for a drag icon. * * Returns: (transfer full): a newly-allocated surface of the drag icon. **/ GdkPaintable * gtk_tree_view_create_row_drag_icon (GtkTreeView *tree_view, GtkTreePath *path) { GtkTreeIter iter; GtkTreeRBTree *tree; GtkTreeRBNode *node; GtkStyleContext *context; gint cell_offset; GList *list; GdkRectangle background_area; GtkWidget *widget; GtkSnapshot *snapshot; GdkPaintable *paintable; gint depth; /* start drawing inside the black outline */ gint x = 1, y = 1; gint bin_window_width; gboolean is_separator = FALSE; gboolean rtl; g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL); g_return_val_if_fail (path != NULL, NULL); widget = GTK_WIDGET (tree_view); if (!gtk_widget_get_realized (widget)) return NULL; depth = gtk_tree_path_get_depth (path); _gtk_tree_view_find_node (tree_view, path, &tree, &node); if (tree == NULL) return NULL; if (!gtk_tree_model_get_iter (tree_view->model, &iter, path)) return NULL; context = gtk_widget_get_style_context (widget); is_separator = row_is_separator (tree_view, &iter, NULL); cell_offset = x; background_area.y = y; background_area.height = gtk_tree_view_get_row_height (tree_view, node); bin_window_width = gtk_widget_get_width (GTK_WIDGET (tree_view)); snapshot = gtk_snapshot_new (); gtk_snapshot_render_background (snapshot, context, 0, 0, bin_window_width + 2, background_area.height + 2); rtl = gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL; for (list = (rtl ? g_list_last (tree_view->columns) : g_list_first (tree_view->columns)); list; list = (rtl ? list->prev : list->next)) { GtkTreeViewColumn *column = list->data; GdkRectangle cell_area; if (!gtk_tree_view_column_get_visible (column)) continue; gtk_tree_view_column_cell_set_cell_data (column, tree_view->model, &iter, GTK_TREE_RBNODE_FLAG_SET (node, GTK_TREE_RBNODE_IS_PARENT), node->children?TRUE:FALSE); background_area.x = cell_offset; background_area.width = gtk_tree_view_column_get_width (column); cell_area = background_area; if (gtk_tree_view_is_expander_column (tree_view, column)) { if (!rtl) cell_area.x += (depth - 1) * tree_view->level_indentation; cell_area.width -= (depth - 1) * tree_view->level_indentation; if (gtk_tree_view_draw_expanders (tree_view)) { int expander_size = gtk_tree_view_get_expander_size (tree_view); if (!rtl) cell_area.x += depth * expander_size; cell_area.width -= depth * expander_size; } } if (gtk_tree_view_column_cell_is_visible (column)) { if (is_separator) { GdkRGBA color; gtk_style_context_save (context); gtk_style_context_add_class (context, GTK_STYLE_CLASS_SEPARATOR); gtk_style_context_get_color (context, &color); gtk_snapshot_append_color (snapshot, &color, &GRAPHENE_RECT_INIT( cell_area.x, cell_area.y + cell_area.height / 2, cell_area.x + cell_area.width, 1 )); gtk_style_context_restore (context); } else { gtk_tree_view_column_cell_snapshot (column, snapshot, &background_area, &cell_area, 0, FALSE); } } cell_offset += gtk_tree_view_column_get_width (column); } gtk_treeview_snapshot_border (snapshot, &GRAPHENE_RECT_INIT(0, 0, bin_window_width + 2, background_area.height + 2)); paintable = gtk_snapshot_free_to_paintable (snapshot, NULL); return paintable; } /* * Interactive search */ /** * gtk_tree_view_set_enable_search: * @tree_view: A #GtkTreeView * @enable_search: %TRUE, if the user can search interactively * * If @enable_search is set, then the user can type in text to search through * the tree interactively (this is sometimes called "typeahead find"). * * Note that even if this is %FALSE, the user can still initiate a search * using the “start-interactive-search” key binding. */ void gtk_tree_view_set_enable_search (GtkTreeView *tree_view, gboolean enable_search) { g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); enable_search = !!enable_search; if (tree_view->enable_search != enable_search) { tree_view->enable_search = enable_search; g_object_notify_by_pspec (G_OBJECT (tree_view), tree_view_props[PROP_ENABLE_SEARCH]); } } /** * gtk_tree_view_get_enable_search: * @tree_view: A #GtkTreeView * * Returns whether or not the tree allows to start interactive searching * by typing in text. * * Returns: whether or not to let the user search interactively */ gboolean gtk_tree_view_get_enable_search (GtkTreeView *tree_view) { g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE); return tree_view->enable_search; } /** * gtk_tree_view_get_search_column: * @tree_view: A #GtkTreeView * * Gets the column searched on by the interactive search code. * * Returns: the column the interactive search code searches in. */ gint gtk_tree_view_get_search_column (GtkTreeView *tree_view) { g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1); return (tree_view->search_column); } /** * gtk_tree_view_set_search_column: * @tree_view: A #GtkTreeView * @column: the column of the model to search in, or -1 to disable searching * * Sets @column as the column where the interactive search code should * search in for the current model. * * If the search column is set, users can use the “start-interactive-search” * key binding to bring up search popup. The enable-search property controls * whether simply typing text will also start an interactive search. * * Note that @column refers to a column of the current model. The search * column is reset to -1 when the model is changed. */ void gtk_tree_view_set_search_column (GtkTreeView *tree_view, gint column) { g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); g_return_if_fail (column >= -1); if (tree_view->search_column == column) return; tree_view->search_column = column; g_object_notify_by_pspec (G_OBJECT (tree_view), tree_view_props[PROP_SEARCH_COLUMN]); } /** * gtk_tree_view_get_search_equal_func: (skip) * @tree_view: A #GtkTreeView * * Returns the compare function currently in use. * * Returns: the currently used compare function for the search code. */ GtkTreeViewSearchEqualFunc gtk_tree_view_get_search_equal_func (GtkTreeView *tree_view) { g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL); return tree_view->search_equal_func; } /** * gtk_tree_view_set_search_equal_func: * @tree_view: A #GtkTreeView * @search_equal_func: the compare function to use during the search * @search_user_data: (allow-none): user data to pass to @search_equal_func, or %NULL * @search_destroy: (allow-none): Destroy notifier for @search_user_data, or %NULL * * Sets the compare function for the interactive search capabilities; note * that somewhat like strcmp() returning 0 for equality * #GtkTreeViewSearchEqualFunc returns %FALSE on matches. **/ void gtk_tree_view_set_search_equal_func (GtkTreeView *tree_view, GtkTreeViewSearchEqualFunc search_equal_func, gpointer search_user_data, GDestroyNotify search_destroy) { g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); g_return_if_fail (search_equal_func != NULL); if (tree_view->search_destroy) tree_view->search_destroy (tree_view->search_user_data); tree_view->search_equal_func = search_equal_func; tree_view->search_user_data = search_user_data; tree_view->search_destroy = search_destroy; if (tree_view->search_equal_func == NULL) tree_view->search_equal_func = gtk_tree_view_search_equal_func; } /** * gtk_tree_view_get_search_entry: * @tree_view: A #GtkTreeView * * Returns the #GtkEntry which is currently in use as interactive search * entry for @tree_view. In case the built-in entry is being used, %NULL * will be returned. * * Returns: (transfer none): the entry currently in use as search entry. */ GtkEditable * gtk_tree_view_get_search_entry (GtkTreeView *tree_view) { g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL); if (tree_view->search_custom_entry_set) return GTK_EDITABLE (tree_view->search_entry); return NULL; } /** * gtk_tree_view_set_search_entry: * @tree_view: A #GtkTreeView * @entry: (allow-none): the entry the interactive search code of @tree_view should use or %NULL * * Sets the entry which the interactive search code will use for this * @tree_view. This is useful when you want to provide a search entry * in our interface at all time at a fixed position. Passing %NULL for * @entry will make the interactive search code use the built-in popup * entry again. */ void gtk_tree_view_set_search_entry (GtkTreeView *tree_view, GtkEditable *entry) { g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); g_return_if_fail (entry == NULL || GTK_IS_ENTRY (entry) || GTK_IS_SEARCH_ENTRY (entry)); if (tree_view->search_custom_entry_set) { if (tree_view->search_entry_changed_id) { g_signal_handler_disconnect (tree_view->search_entry, tree_view->search_entry_changed_id); tree_view->search_entry_changed_id = 0; } g_signal_handlers_disconnect_by_func (gtk_entry_get_key_controller (GTK_ENTRY (tree_view->search_entry)), G_CALLBACK (gtk_tree_view_search_key_pressed), tree_view); g_object_unref (tree_view->search_entry); } else if (tree_view->search_popover) { gtk_tree_view_destroy_search_popover (tree_view); } if (entry) { GtkEventController *controller; tree_view->search_entry = GTK_WIDGET (g_object_ref (entry)); tree_view->search_custom_entry_set = TRUE; if (tree_view->search_entry_changed_id == 0) { tree_view->search_entry_changed_id = g_signal_connect (tree_view->search_entry, "changed", G_CALLBACK (gtk_tree_view_search_init), tree_view); } if (GTK_IS_ENTRY (entry)) controller = gtk_entry_get_key_controller (GTK_ENTRY (entry)); else controller = gtk_search_entry_get_key_controller (GTK_SEARCH_ENTRY (entry)); g_signal_connect (controller, "key-pressed", G_CALLBACK (gtk_tree_view_search_key_pressed), tree_view); gtk_tree_view_search_init (tree_view->search_entry, tree_view); } else { tree_view->search_entry = NULL; tree_view->search_custom_entry_set = FALSE; } } static void gtk_tree_view_search_popover_hide (GtkWidget *search_popover, GtkTreeView *tree_view, GdkDevice *device) { if (tree_view->disable_popdown) return; if (tree_view->search_entry_changed_id) { g_signal_handler_disconnect (tree_view->search_entry, tree_view->search_entry_changed_id); tree_view->search_entry_changed_id = 0; } if (tree_view->typeselect_flush_timeout) { g_source_remove (tree_view->typeselect_flush_timeout); tree_view->typeselect_flush_timeout = 0; } if (gtk_widget_get_visible (search_popover)) { gtk_popover_popdown (GTK_POPOVER (search_popover)); gtk_editable_set_text (GTK_EDITABLE (tree_view->search_entry), ""); gtk_widget_grab_focus (GTK_WIDGET (tree_view)); } } /* Because we're visible but offscreen, we just set a flag in the preedit * callback. */ static void gtk_tree_view_search_preedit_changed (GtkText *text, const char *predit, GtkTreeView *tree_view) { tree_view->imcontext_changed = 1; if (tree_view->typeselect_flush_timeout) { g_source_remove (tree_view->typeselect_flush_timeout); tree_view->typeselect_flush_timeout = g_timeout_add (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT, (GSourceFunc) gtk_tree_view_search_entry_flush_timeout, tree_view); g_source_set_name_by_id (tree_view->typeselect_flush_timeout, "[gtk] gtk_tree_view_search_entry_flush_timeout"); } } static void gtk_tree_view_search_changed (GtkEditable *editable, GtkTreeView *tree_view) { tree_view->imcontext_changed = 1; } static void gtk_tree_view_search_activate (GtkEntry *entry, GtkTreeView *tree_view) { GtkTreePath *path; gtk_tree_view_search_popover_hide (tree_view->search_popover, tree_view, gtk_get_current_event_device ()); /* If we have a row selected and it's the cursor row, we activate * the row XXX */ if (tree_view->cursor_node && GTK_TREE_RBNODE_FLAG_SET (tree_view->cursor_node, GTK_TREE_RBNODE_IS_SELECTED)) { path = _gtk_tree_path_new_from_rbtree (tree_view->cursor_tree, tree_view->cursor_node); gtk_tree_view_row_activated (tree_view, path, tree_view->focus_column); gtk_tree_path_free (path); } } static void gtk_tree_view_search_pressed_cb (GtkGesture *gesture, int n_press, double x, double y, GtkTreeView *tree_view) { GdkDevice *keyb_device; GdkEventSequence *sequence; const GdkEvent *event; sequence = gtk_gesture_get_last_updated_sequence (gesture); event = gtk_gesture_get_last_event (gesture, sequence); keyb_device = gdk_device_get_associated_device (gdk_event_get_device (event)); gtk_tree_view_search_popover_hide (tree_view->search_popover, tree_view, keyb_device); } static gboolean gtk_tree_view_search_scroll_event (GtkWidget *widget, gdouble dx, gdouble dy, GtkTreeView *tree_view) { GdkScrollDirection direction; direction = dy > 0 ? GDK_SCROLL_DOWN : GDK_SCROLL_UP; if (direction == GDK_SCROLL_UP) gtk_tree_view_search_move (widget, tree_view, TRUE); else if (direction == GDK_SCROLL_DOWN) gtk_tree_view_search_move (widget, tree_view, FALSE); /* renew the flush timeout */ if (tree_view->typeselect_flush_timeout && !tree_view->search_custom_entry_set) { g_source_remove (tree_view->typeselect_flush_timeout); tree_view->typeselect_flush_timeout = g_timeout_add (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT, (GSourceFunc) gtk_tree_view_search_entry_flush_timeout, tree_view); g_source_set_name_by_id (tree_view->typeselect_flush_timeout, "[gtk] gtk_tree_view_search_entry_flush_timeout"); } return GDK_EVENT_STOP; } static gboolean gtk_tree_view_search_key_pressed (GtkEventControllerKey *key, guint keyval, guint keycode, GdkModifierType state, GtkTreeView *tree_view) { GtkWidget *widget = tree_view->search_entry; GdkModifierType default_accel; gboolean retval = FALSE; g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE); g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE); /* close window and cancel the search */ if (!tree_view->search_custom_entry_set && gtk_tree_view_search_key_cancels_search (keyval)) { gtk_tree_view_search_popover_hide (tree_view->search_popover, tree_view, gtk_get_current_event_device ()); return TRUE; } default_accel = gtk_widget_get_modifier_mask (widget, GDK_MODIFIER_INTENT_PRIMARY_ACCELERATOR); /* select previous matching iter */ if (keyval == GDK_KEY_Up || keyval == GDK_KEY_KP_Up) { if (!gtk_tree_view_search_move (widget, tree_view, TRUE)) gtk_widget_error_bell (widget); retval = TRUE; } if (((state & (default_accel | GDK_SHIFT_MASK)) == (default_accel | GDK_SHIFT_MASK)) && (keyval == GDK_KEY_g || keyval == GDK_KEY_G)) { if (!gtk_tree_view_search_move (widget, tree_view, TRUE)) gtk_widget_error_bell (widget); retval = TRUE; } /* select next matching iter */ if (keyval == GDK_KEY_Down || keyval == GDK_KEY_KP_Down) { if (!gtk_tree_view_search_move (widget, tree_view, FALSE)) gtk_widget_error_bell (widget); retval = TRUE; } if (((state & (default_accel | GDK_SHIFT_MASK)) == default_accel) && (keyval == GDK_KEY_g || keyval == GDK_KEY_G)) { if (!gtk_tree_view_search_move (widget, tree_view, FALSE)) gtk_widget_error_bell (widget); retval = TRUE; } /* renew the flush timeout */ if (retval && tree_view->typeselect_flush_timeout && !tree_view->search_custom_entry_set) { g_source_remove (tree_view->typeselect_flush_timeout); tree_view->typeselect_flush_timeout = g_timeout_add (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT, (GSourceFunc) gtk_tree_view_search_entry_flush_timeout, tree_view); g_source_set_name_by_id (tree_view->typeselect_flush_timeout, "[gtk] gtk_tree_view_search_entry_flush_timeout"); } if (!retval) gtk_event_controller_key_forward (key, tree_view->search_entry); return retval; } /* this function returns FALSE if there is a search string but * nothing was found, and TRUE otherwise. */ static gboolean gtk_tree_view_search_move (GtkWidget *popover, GtkTreeView *tree_view, gboolean up) { gboolean ret; gint len; gint count = 0; const gchar *text; GtkTreeIter iter; GtkTreeModel *model; GtkTreeSelection *selection; text = gtk_editable_get_text (GTK_EDITABLE (tree_view->search_entry)); g_return_val_if_fail (text != NULL, FALSE); len = strlen (text); if (up && tree_view->selected_iter == 1) return len < 1; if (len < 1) return TRUE; model = gtk_tree_view_get_model (tree_view); selection = gtk_tree_view_get_selection (tree_view); /* search */ gtk_tree_selection_unselect_all (selection); if (!gtk_tree_model_get_iter_first (model, &iter)) return TRUE; ret = gtk_tree_view_search_iter (model, selection, &iter, text, &count, up?((tree_view->selected_iter) - 1):((tree_view->selected_iter + 1))); if (ret) { /* found */ tree_view->selected_iter += up?(-1):(1); return TRUE; } else { /* return to old iter */ count = 0; gtk_tree_model_get_iter_first (model, &iter); gtk_tree_view_search_iter (model, selection, &iter, text, &count, tree_view->selected_iter); return FALSE; } } static gboolean gtk_tree_view_search_equal_func (GtkTreeModel *model, gint column, const gchar *key, GtkTreeIter *iter, gpointer search_data) { gboolean retval = TRUE; const gchar *str; gchar *normalized_string; gchar *normalized_key; gchar *case_normalized_string = NULL; gchar *case_normalized_key = NULL; GValue value = G_VALUE_INIT; GValue transformed = G_VALUE_INIT; gtk_tree_model_get_value (model, iter, column, &value); g_value_init (&transformed, G_TYPE_STRING); if (!g_value_transform (&value, &transformed)) { g_value_unset (&value); return TRUE; } g_value_unset (&value); str = g_value_get_string (&transformed); if (!str) { g_value_unset (&transformed); return TRUE; } normalized_string = g_utf8_normalize (str, -1, G_NORMALIZE_ALL); normalized_key = g_utf8_normalize (key, -1, G_NORMALIZE_ALL); if (normalized_string && normalized_key) { case_normalized_string = g_utf8_casefold (normalized_string, -1); case_normalized_key = g_utf8_casefold (normalized_key, -1); if (strncmp (case_normalized_key, case_normalized_string, strlen (case_normalized_key)) == 0) retval = FALSE; } g_value_unset (&transformed); g_free (normalized_key); g_free (normalized_string); g_free (case_normalized_key); g_free (case_normalized_string); return retval; } static gboolean gtk_tree_view_search_iter (GtkTreeModel *model, GtkTreeSelection *selection, GtkTreeIter *iter, const gchar *text, gint *count, gint n) { GtkTreeRBTree *tree = NULL; GtkTreeRBNode *node = NULL; GtkTreePath *path; GtkTreeView *tree_view = gtk_tree_selection_get_tree_view (selection); path = gtk_tree_model_get_path (model, iter); _gtk_tree_view_find_node (tree_view, path, &tree, &node); do { if (! tree_view->search_equal_func (model, tree_view->search_column, text, iter, tree_view->search_user_data)) { (*count)++; if (*count == n) { gtk_tree_view_scroll_to_cell (tree_view, path, NULL, TRUE, 0.5, 0.0); gtk_tree_selection_select_iter (selection, iter); gtk_tree_view_real_set_cursor (tree_view, path, CLAMP_NODE); if (path) gtk_tree_path_free (path); return TRUE; } } if (node->children) { gboolean has_child; GtkTreeIter tmp; tree = node->children; node = gtk_tree_rbtree_first (tree); tmp = *iter; has_child = gtk_tree_model_iter_children (model, iter, &tmp); gtk_tree_path_down (path); /* sanity check */ TREE_VIEW_INTERNAL_ASSERT (has_child, FALSE); } else { gboolean done = FALSE; do { node = gtk_tree_rbtree_next (tree, node); if (node) { gboolean has_next; has_next = gtk_tree_model_iter_next (model, iter); done = TRUE; gtk_tree_path_next (path); /* sanity check */ TREE_VIEW_INTERNAL_ASSERT (has_next, FALSE); } else { gboolean has_parent; GtkTreeIter tmp_iter = *iter; node = tree->parent_node; tree = tree->parent_tree; if (!tree) { if (path) gtk_tree_path_free (path); /* we've run out of tree, done with this func */ return FALSE; } has_parent = gtk_tree_model_iter_parent (model, iter, &tmp_iter); gtk_tree_path_up (path); /* sanity check */ TREE_VIEW_INTERNAL_ASSERT (has_parent, FALSE); } } while (!done); } } while (1); return FALSE; } static void gtk_tree_view_search_init (GtkWidget *entry, GtkTreeView *tree_view) { gint ret; gint count = 0; const gchar *text; GtkTreeIter iter; GtkTreeModel *model; GtkTreeSelection *selection; g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); text = gtk_editable_get_text (GTK_EDITABLE (entry)); model = gtk_tree_view_get_model (tree_view); selection = gtk_tree_view_get_selection (tree_view); /* search */ gtk_tree_selection_unselect_all (selection); if (tree_view->typeselect_flush_timeout && !tree_view->search_custom_entry_set) { g_source_remove (tree_view->typeselect_flush_timeout); tree_view->typeselect_flush_timeout = g_timeout_add (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT, (GSourceFunc) gtk_tree_view_search_entry_flush_timeout, tree_view); g_source_set_name_by_id (tree_view->typeselect_flush_timeout, "[gtk] gtk_tree_view_search_entry_flush_timeout"); } if (*text == '\0') return; if (!gtk_tree_model_get_iter_first (model, &iter)) return; ret = gtk_tree_view_search_iter (model, selection, &iter, text, &count, 1); if (ret) tree_view->selected_iter = 1; } void _gtk_tree_view_remove_editable (GtkTreeView *tree_view, GtkTreeViewColumn *column, GtkCellEditable *cell_editable) { if (tree_view->edited_column == NULL) return; g_return_if_fail (column == tree_view->edited_column); tree_view->edited_column = NULL; if (gtk_widget_has_focus (GTK_WIDGET (cell_editable))) gtk_widget_grab_focus (GTK_WIDGET (tree_view)); gtk_container_remove (GTK_CONTAINER (tree_view), GTK_WIDGET (cell_editable)); /* FIXME should only redraw a single node */ gtk_widget_queue_draw (GTK_WIDGET (tree_view)); } static gboolean gtk_tree_view_start_editing (GtkTreeView *tree_view, GtkTreePath *cursor_path, gboolean edit_only) { GtkTreeIter iter; GdkRectangle cell_area; GtkTreeViewColumn *focus_column; guint flags = 0; /* can be 0, as the flags are primarily for rendering */ gint retval = FALSE; GtkTreeRBTree *cursor_tree; GtkTreeRBNode *cursor_node; g_assert (tree_view->focus_column); focus_column = tree_view->focus_column; if (!gtk_widget_get_realized (GTK_WIDGET (tree_view))) return FALSE; if (_gtk_tree_view_find_node (tree_view, cursor_path, &cursor_tree, &cursor_node) || cursor_node == NULL) return FALSE; gtk_tree_model_get_iter (tree_view->model, &iter, cursor_path); validate_row (tree_view, cursor_tree, cursor_node, &iter, cursor_path); gtk_tree_view_column_cell_set_cell_data (focus_column, tree_view->model, &iter, GTK_TREE_RBNODE_FLAG_SET (cursor_node, GTK_TREE_RBNODE_IS_PARENT), cursor_node->children ? TRUE : FALSE); gtk_tree_view_get_cell_area (tree_view, cursor_path, focus_column, &cell_area); if (gtk_cell_area_activate (gtk_cell_layout_get_area (GTK_CELL_LAYOUT (focus_column)), _gtk_tree_view_column_get_context (focus_column), GTK_WIDGET (tree_view), &cell_area, flags, edit_only)) retval = TRUE; return retval; } void _gtk_tree_view_add_editable (GtkTreeView *tree_view, GtkTreeViewColumn *column, GtkTreePath *path, GtkCellEditable *cell_editable, GdkRectangle *cell_area) { GdkRectangle full_area; GtkBorder border; tree_view->edited_column = column; gtk_tree_view_real_set_cursor (tree_view, path, CLAMP_NODE); tree_view->draw_keyfocus = TRUE; gtk_tree_view_get_cell_area (tree_view, path, column, &full_area); border.left = cell_area->x - full_area.x; border.top = cell_area->y - full_area.y; border.right = (full_area.x + full_area.width) - (cell_area->x + cell_area->width); border.bottom = (full_area.y + full_area.height) - (cell_area->y + cell_area->height); gtk_tree_view_put (tree_view, GTK_WIDGET (cell_editable), path, column, &border); } static void gtk_tree_view_stop_editing (GtkTreeView *tree_view, gboolean cancel_editing) { GtkTreeViewColumn *column; if (tree_view->edited_column == NULL) return; /* * This is very evil. We need to do this, because * gtk_cell_editable_editing_done may trigger gtk_tree_view_row_changed * later on. If gtk_tree_view_row_changed notices * tree_view->edited_column != NULL, it'll call * gtk_tree_view_stop_editing again. Bad things will happen then. * * Please read that again if you intend to modify anything here. */ column = tree_view->edited_column; gtk_cell_area_stop_editing (gtk_cell_layout_get_area (GTK_CELL_LAYOUT (column)), cancel_editing); tree_view->edited_column = NULL; } /** * gtk_tree_view_set_hover_selection: * @tree_view: a #GtkTreeView * @hover: %TRUE to enable hover selection mode * * Enables or disables the hover selection mode of @tree_view. * Hover selection makes the selected row follow the pointer. * Currently, this works only for the selection modes * %GTK_SELECTION_SINGLE and %GTK_SELECTION_BROWSE. **/ void gtk_tree_view_set_hover_selection (GtkTreeView *tree_view, gboolean hover) { hover = hover != FALSE; if (hover != tree_view->hover_selection) { tree_view->hover_selection = hover; g_object_notify_by_pspec (G_OBJECT (tree_view), tree_view_props[PROP_HOVER_SELECTION]); } } /** * gtk_tree_view_get_hover_selection: * @tree_view: a #GtkTreeView * * Returns whether hover selection mode is turned on for @tree_view. * * Returns: %TRUE if @tree_view is in hover selection mode **/ gboolean gtk_tree_view_get_hover_selection (GtkTreeView *tree_view) { return tree_view->hover_selection; } /** * gtk_tree_view_set_hover_expand: * @tree_view: a #GtkTreeView * @expand: %TRUE to enable hover selection mode * * Enables or disables the hover expansion mode of @tree_view. * Hover expansion makes rows expand or collapse if the pointer * moves over them. **/ void gtk_tree_view_set_hover_expand (GtkTreeView *tree_view, gboolean expand) { expand = expand != FALSE; if (expand != tree_view->hover_expand) { tree_view->hover_expand = expand; g_object_notify_by_pspec (G_OBJECT (tree_view), tree_view_props[PROP_HOVER_EXPAND]); } } /** * gtk_tree_view_get_hover_expand: * @tree_view: a #GtkTreeView * * Returns whether hover expansion mode is turned on for @tree_view. * * Returns: %TRUE if @tree_view is in hover expansion mode **/ gboolean gtk_tree_view_get_hover_expand (GtkTreeView *tree_view) { return tree_view->hover_expand; } /** * gtk_tree_view_set_rubber_banding: * @tree_view: a #GtkTreeView * @enable: %TRUE to enable rubber banding * * Enables or disables rubber banding in @tree_view. If the selection mode * is #GTK_SELECTION_MULTIPLE, rubber banding will allow the user to select * multiple rows by dragging the mouse. **/ void gtk_tree_view_set_rubber_banding (GtkTreeView *tree_view, gboolean enable) { enable = enable != FALSE; if (enable != tree_view->rubber_banding_enable) { tree_view->rubber_banding_enable = enable; g_object_notify_by_pspec (G_OBJECT (tree_view), tree_view_props[PROP_RUBBER_BANDING]); } } /** * gtk_tree_view_get_rubber_banding: * @tree_view: a #GtkTreeView * * Returns whether rubber banding is turned on for @tree_view. If the * selection mode is #GTK_SELECTION_MULTIPLE, rubber banding will allow the * user to select multiple rows by dragging the mouse. * * Returns: %TRUE if rubber banding in @tree_view is enabled. **/ gboolean gtk_tree_view_get_rubber_banding (GtkTreeView *tree_view) { return tree_view->rubber_banding_enable; } /** * gtk_tree_view_is_rubber_banding_active: * @tree_view: a #GtkTreeView * * Returns whether a rubber banding operation is currently being done * in @tree_view. * * Returns: %TRUE if a rubber banding operation is currently being * done in @tree_view. **/ gboolean gtk_tree_view_is_rubber_banding_active (GtkTreeView *tree_view) { g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE); if (tree_view->rubber_banding_enable && tree_view->rubber_band_status == RUBBER_BAND_ACTIVE) return TRUE; return FALSE; } /** * gtk_tree_view_get_row_separator_func: (skip) * @tree_view: a #GtkTreeView * * Returns the current row separator function. * * Returns: the current row separator function. **/ GtkTreeViewRowSeparatorFunc gtk_tree_view_get_row_separator_func (GtkTreeView *tree_view) { g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL); return tree_view->row_separator_func; } /** * gtk_tree_view_set_row_separator_func: * @tree_view: a #GtkTreeView * @func: (allow-none): a #GtkTreeViewRowSeparatorFunc * @data: (allow-none): user data to pass to @func, or %NULL * @destroy: (allow-none): destroy notifier for @data, or %NULL * * Sets the row separator function, which is used to determine * whether a row should be drawn as a separator. If the row separator * function is %NULL, no separators are drawn. This is the default value. **/ void gtk_tree_view_set_row_separator_func (GtkTreeView *tree_view, GtkTreeViewRowSeparatorFunc func, gpointer data, GDestroyNotify destroy) { g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); if (tree_view->row_separator_destroy) tree_view->row_separator_destroy (tree_view->row_separator_data); tree_view->row_separator_func = func; tree_view->row_separator_data = data; tree_view->row_separator_destroy = destroy; /* Have the tree recalculate heights */ gtk_tree_rbtree_mark_invalid (tree_view->tree); gtk_widget_queue_resize (GTK_WIDGET (tree_view)); } /** * gtk_tree_view_get_grid_lines: * @tree_view: a #GtkTreeView * * Returns which grid lines are enabled in @tree_view. * * Returns: a #GtkTreeViewGridLines value indicating which grid lines * are enabled. */ GtkTreeViewGridLines gtk_tree_view_get_grid_lines (GtkTreeView *tree_view) { g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0); return tree_view->grid_lines; } /** * gtk_tree_view_set_grid_lines: * @tree_view: a #GtkTreeView * @grid_lines: a #GtkTreeViewGridLines value indicating which grid lines to * enable. * * Sets which grid lines to draw in @tree_view. */ void gtk_tree_view_set_grid_lines (GtkTreeView *tree_view, GtkTreeViewGridLines grid_lines) { GtkTreeViewGridLines old_grid_lines; g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); old_grid_lines = tree_view->grid_lines; tree_view->grid_lines = grid_lines; if (old_grid_lines != grid_lines) { gtk_widget_queue_draw (GTK_WIDGET (tree_view)); g_object_notify_by_pspec (G_OBJECT (tree_view), tree_view_props[PROP_ENABLE_GRID_LINES]); } } /** * gtk_tree_view_get_enable_tree_lines: * @tree_view: a #GtkTreeView. * * Returns whether or not tree lines are drawn in @tree_view. * * Returns: %TRUE if tree lines are drawn in @tree_view, %FALSE * otherwise. */ gboolean gtk_tree_view_get_enable_tree_lines (GtkTreeView *tree_view) { g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE); return tree_view->tree_lines_enabled; } /** * gtk_tree_view_set_enable_tree_lines: * @tree_view: a #GtkTreeView * @enabled: %TRUE to enable tree line drawing, %FALSE otherwise. * * Sets whether to draw lines interconnecting the expanders in @tree_view. * This does not have any visible effects for lists. */ void gtk_tree_view_set_enable_tree_lines (GtkTreeView *tree_view, gboolean enabled) { gboolean was_enabled; g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); enabled = enabled != FALSE; was_enabled = tree_view->tree_lines_enabled; tree_view->tree_lines_enabled = enabled; if (was_enabled != enabled) { gtk_widget_queue_draw (GTK_WIDGET (tree_view)); g_object_notify_by_pspec (G_OBJECT (tree_view), tree_view_props[PROP_ENABLE_TREE_LINES]); } } /** * gtk_tree_view_set_show_expanders: * @tree_view: a #GtkTreeView * @enabled: %TRUE to enable expander drawing, %FALSE otherwise. * * Sets whether to draw and enable expanders and indent child rows in * @tree_view. When disabled there will be no expanders visible in trees * and there will be no way to expand and collapse rows by default. Also * note that hiding the expanders will disable the default indentation. You * can set a custom indentation in this case using * gtk_tree_view_set_level_indentation(). * This does not have any visible effects for lists. */ void gtk_tree_view_set_show_expanders (GtkTreeView *tree_view, gboolean enabled) { g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); enabled = enabled != FALSE; if (tree_view->show_expanders != enabled) { tree_view->show_expanders = enabled; gtk_widget_queue_draw (GTK_WIDGET (tree_view)); g_object_notify_by_pspec (G_OBJECT (tree_view), tree_view_props[PROP_SHOW_EXPANDERS]); } } /** * gtk_tree_view_get_show_expanders: * @tree_view: a #GtkTreeView. * * Returns whether or not expanders are drawn in @tree_view. * * Returns: %TRUE if expanders are drawn in @tree_view, %FALSE * otherwise. */ gboolean gtk_tree_view_get_show_expanders (GtkTreeView *tree_view) { g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE); return tree_view->show_expanders; } /** * gtk_tree_view_set_level_indentation: * @tree_view: a #GtkTreeView * @indentation: the amount, in pixels, of extra indentation in @tree_view. * * Sets the amount of extra indentation for child levels to use in @tree_view * in addition to the default indentation. The value should be specified in * pixels, a value of 0 disables this feature and in this case only the default * indentation will be used. * This does not have any visible effects for lists. */ void gtk_tree_view_set_level_indentation (GtkTreeView *tree_view, gint indentation) { tree_view->level_indentation = indentation; gtk_widget_queue_draw (GTK_WIDGET (tree_view)); } /** * gtk_tree_view_get_level_indentation: * @tree_view: a #GtkTreeView. * * Returns the amount, in pixels, of extra indentation for child levels * in @tree_view. * * Returns: the amount of extra indentation for child levels in * @tree_view. A return value of 0 means that this feature is disabled. */ gint gtk_tree_view_get_level_indentation (GtkTreeView *tree_view) { g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0); return tree_view->level_indentation; } /** * gtk_tree_view_set_tooltip_row: * @tree_view: a #GtkTreeView * @tooltip: a #GtkTooltip * @path: a #GtkTreePath * * Sets the tip area of @tooltip to be the area covered by the row at @path. * See also gtk_tree_view_set_tooltip_column() for a simpler alternative. * See also gtk_tooltip_set_tip_area(). */ void gtk_tree_view_set_tooltip_row (GtkTreeView *tree_view, GtkTooltip *tooltip, GtkTreePath *path) { g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); g_return_if_fail (GTK_IS_TOOLTIP (tooltip)); gtk_tree_view_set_tooltip_cell (tree_view, tooltip, path, NULL, NULL); } /** * gtk_tree_view_set_tooltip_cell: * @tree_view: a #GtkTreeView * @tooltip: a #GtkTooltip * @path: (allow-none): a #GtkTreePath or %NULL * @column: (allow-none): a #GtkTreeViewColumn or %NULL * @cell: (allow-none): a #GtkCellRenderer or %NULL * * Sets the tip area of @tooltip to the area @path, @column and @cell have * in common. For example if @path is %NULL and @column is set, the tip * area will be set to the full area covered by @column. See also * gtk_tooltip_set_tip_area(). * * Note that if @path is not specified and @cell is set and part of a column * containing the expander, the tooltip might not show and hide at the correct * position. In such cases @path must be set to the current node under the * mouse cursor for this function to operate correctly. * * See also gtk_tree_view_set_tooltip_column() for a simpler alternative. */ void gtk_tree_view_set_tooltip_cell (GtkTreeView *tree_view, GtkTooltip *tooltip, GtkTreePath *path, GtkTreeViewColumn *column, GtkCellRenderer *cell) { GdkRectangle rect; g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); g_return_if_fail (GTK_IS_TOOLTIP (tooltip)); g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column)); g_return_if_fail (cell == NULL || GTK_IS_CELL_RENDERER (cell)); /* Determine x values. */ if (column && cell) { GdkRectangle tmp; gint start, width; /* We always pass in path here, whether it is NULL or not. * For cells in expander columns path must be specified so that * we can correctly account for the indentation. This also means * that the tooltip is constrained vertically by the "Determine y * values" code below; this is not a real problem since cells actually * don't stretch vertically in constrast to columns. */ gtk_tree_view_get_cell_area (tree_view, path, column, &tmp); gtk_tree_view_column_cell_get_position (column, cell, &start, &width); gtk_tree_view_convert_bin_window_to_widget_coords (tree_view, tmp.x + start, 0, &rect.x, NULL); rect.width = width; } else if (column) { GdkRectangle tmp; gtk_tree_view_get_background_area (tree_view, NULL, column, &tmp); gtk_tree_view_convert_bin_window_to_widget_coords (tree_view, tmp.x, 0, &rect.x, NULL); rect.width = tmp.width; } else { rect.x = 0; rect.width = gtk_widget_get_width (GTK_WIDGET (tree_view));; } /* Determine y values. */ if (path) { GdkRectangle tmp; gtk_tree_view_get_background_area (tree_view, path, NULL, &tmp); gtk_tree_view_convert_bin_window_to_widget_coords (tree_view, 0, tmp.y, NULL, &rect.y); rect.height = tmp.height; } else { rect.y = 0; rect.height = gtk_adjustment_get_page_size (tree_view->vadjustment); } gtk_tooltip_set_tip_area (tooltip, &rect); } /** * gtk_tree_view_get_tooltip_context: * @tree_view: a #GtkTreeView * @x: (inout): the x coordinate (relative to widget coordinates) * @y: (inout): the y coordinate (relative to widget coordinates) * @keyboard_tip: whether this is a keyboard tooltip or not * @model: (out) (optional) (nullable) (transfer none): a pointer to * receive a #GtkTreeModel or %NULL * @path: (out) (optional): a pointer to receive a #GtkTreePath or %NULL * @iter: (out) (optional): a pointer to receive a #GtkTreeIter or %NULL * * This function is supposed to be used in a #GtkWidget::query-tooltip * signal handler for #GtkTreeView. The @x, @y and @keyboard_tip values * which are received in the signal handler, should be passed to this * function without modification. * * The return value indicates whether there is a tree view row at the given * coordinates (%TRUE) or not (%FALSE) for mouse tooltips. For keyboard * tooltips the row returned will be the cursor row. When %TRUE, then any of * @model, @path and @iter which have been provided will be set to point to * that row and the corresponding model. @x and @y will always be converted * to be relative to @tree_view’s bin_window if @keyboard_tooltip is %FALSE. * * Returns: whether or not the given tooltip context points to a row. */ gboolean gtk_tree_view_get_tooltip_context (GtkTreeView *tree_view, gint *x, gint *y, gboolean keyboard_tip, GtkTreeModel **model, GtkTreePath **path, GtkTreeIter *iter) { GtkTreePath *tmppath = NULL; g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE); g_return_val_if_fail (x != NULL, FALSE); g_return_val_if_fail (y != NULL, FALSE); if (keyboard_tip) { gtk_tree_view_get_cursor (tree_view, &tmppath, NULL); if (!tmppath) return FALSE; } else { gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, *x, *y, x, y); if (!gtk_tree_view_get_path_at_pos (tree_view, *x, *y, &tmppath, NULL, NULL, NULL)) return FALSE; } if (model) *model = gtk_tree_view_get_model (tree_view); if (iter) gtk_tree_model_get_iter (gtk_tree_view_get_model (tree_view), iter, tmppath); if (path) *path = tmppath; else gtk_tree_path_free (tmppath); return TRUE; } static gboolean gtk_tree_view_set_tooltip_query_cb (GtkWidget *widget, gint x, gint y, gboolean keyboard_tip, GtkTooltip *tooltip, gpointer data) { GValue value = G_VALUE_INIT; GValue transformed = G_VALUE_INIT; GtkTreeIter iter; GtkTreePath *path; GtkTreeModel *model; GtkTreeView *tree_view = GTK_TREE_VIEW (widget); if (!gtk_tree_view_get_tooltip_context (GTK_TREE_VIEW (widget), &x, &y, keyboard_tip, &model, &path, &iter)) return FALSE; gtk_tree_model_get_value (model, &iter, tree_view->tooltip_column, &value); g_value_init (&transformed, G_TYPE_STRING); if (!g_value_transform (&value, &transformed)) { g_value_unset (&value); gtk_tree_path_free (path); return FALSE; } g_value_unset (&value); if (!g_value_get_string (&transformed)) { g_value_unset (&transformed); gtk_tree_path_free (path); return FALSE; } gtk_tooltip_set_markup (tooltip, g_value_get_string (&transformed)); gtk_tree_view_set_tooltip_row (tree_view, tooltip, path); gtk_tree_path_free (path); g_value_unset (&transformed); return TRUE; } /** * gtk_tree_view_set_tooltip_column: * @tree_view: a #GtkTreeView * @column: an integer, which is a valid column number for @tree_view’s model * * If you only plan to have simple (text-only) tooltips on full rows, you * can use this function to have #GtkTreeView handle these automatically * for you. @column should be set to the column in @tree_view’s model * containing the tooltip texts, or -1 to disable this feature. * * When enabled, #GtkWidget:has-tooltip will be set to %TRUE and * @tree_view will connect a #GtkWidget::query-tooltip signal handler. * * Note that the signal handler sets the text with gtk_tooltip_set_markup(), * so &, <, etc have to be escaped in the text. */ void gtk_tree_view_set_tooltip_column (GtkTreeView *tree_view, gint column) { g_return_if_fail (GTK_IS_TREE_VIEW (tree_view)); if (column == tree_view->tooltip_column) return; if (column == -1) { g_signal_handlers_disconnect_by_func (tree_view, gtk_tree_view_set_tooltip_query_cb, NULL); gtk_widget_set_has_tooltip (GTK_WIDGET (tree_view), FALSE); } else { if (tree_view->tooltip_column == -1) { g_signal_connect (tree_view, "query-tooltip", G_CALLBACK (gtk_tree_view_set_tooltip_query_cb), NULL); gtk_widget_set_has_tooltip (GTK_WIDGET (tree_view), TRUE); } } tree_view->tooltip_column = column; g_object_notify_by_pspec (G_OBJECT (tree_view), tree_view_props[PROP_TOOLTIP_COLUMN]); } /** * gtk_tree_view_get_tooltip_column: * @tree_view: a #GtkTreeView * * Returns the column of @tree_view’s model which is being used for * displaying tooltips on @tree_view’s rows. * * Returns: the index of the tooltip column that is currently being * used, or -1 if this is disabled. */ gint gtk_tree_view_get_tooltip_column (GtkTreeView *tree_view) { g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0); return tree_view->tooltip_column; } static gboolean gtk_tree_view_get_border (GtkScrollable *scrollable, GtkBorder *border) { border->top = gtk_tree_view_get_effective_header_height (GTK_TREE_VIEW (scrollable)); return TRUE; } static void gtk_tree_view_scrollable_init (GtkScrollableInterface *iface) { iface->get_border = gtk_tree_view_get_border; }