/* gtkiconview.c * Copyright (C) 2002, 2004 Anders Carlsson * * 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, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #include #include #include #include #include "gtkiconview.h" #include "gtkcelllayout.h" #include "gtkcellrenderer.h" #include "gtkcellrenderertext.h" #include "gtkcellrendererpixbuf.h" #include "gtkmarshalers.h" #include "gtkbindings.h" #include "gtkdnd.h" #include "gtkmain.h" #include "gtksignal.h" #include "gtkintl.h" #include "gtkaccessible.h" #include "gtkwindow.h" #include "gtkentry.h" #include "gtkcombobox.h" #include "gtktextbuffer.h" #include "gtktreednd.h" #include "gtkprivate.h" #include "gtkalias.h" #undef DEBUG_ICON_VIEW #define SCROLL_EDGE_SIZE 15 #define GTK_ICON_VIEW_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_ICON_VIEW, GtkIconViewPrivate)) typedef struct _GtkIconViewItem GtkIconViewItem; struct _GtkIconViewItem { GtkTreeIter iter; gint index; gint row, col; /* Bounding box */ gint x, y, width, height; /* Individual cells. * box[i] is the actual area occupied by cell i, * before, after are used to calculate the cell * area relative to the box. * See gtk_icon_view_get_cell_area(). */ gint n_cells; GdkRectangle *box; gint *before; gint *after; guint selected : 1; guint selected_before_rubberbanding : 1; }; typedef struct _GtkIconViewCellInfo GtkIconViewCellInfo; struct _GtkIconViewCellInfo { GtkCellRenderer *cell; guint expand : 1; guint pack : 1; guint editing : 1; gint position; GSList *attributes; GtkCellLayoutDataFunc func; gpointer func_data; GDestroyNotify destroy; }; typedef struct _GtkIconViewChild GtkIconViewChild; struct _GtkIconViewChild { GtkWidget *widget; GtkIconViewItem *item; gint cell; }; struct _GtkIconViewPrivate { gint width, height; GtkSelectionMode selection_mode; GdkWindow *bin_window; GList *children; GtkTreeModel *model; GList *items; GtkAdjustment *hadjustment; GtkAdjustment *vadjustment; guint layout_idle_id; gboolean doing_rubberband; gint rubberband_x1, rubberband_y1; gint rubberband_x2, rubberband_y2; guint scroll_timeout_id; gint scroll_value_diff; gint event_last_x, event_last_y; GtkIconViewItem *anchor_item; GtkIconViewItem *cursor_item; GtkIconViewItem *edited_item; GtkCellEditable *editable; GtkIconViewItem *last_single_clicked; GList *cell_list; guint n_cells; gint cursor_cell; GtkOrientation orientation; gint columns; gint item_width; gint spacing; gint row_spacing; gint column_spacing; gint margin; gint text_column; gint markup_column; gint pixbuf_column; gint pixbuf_cell; gint text_cell; /* Drag-and-drop. */ GdkModifierType start_button_mask; gint pressed_button; gint press_start_x; gint press_start_y; GtkTargetList *source_targets; GdkDragAction source_actions; GtkTargetList *dest_targets; GdkDragAction dest_actions; GtkTreeRowReference *dest_item; GtkIconViewDropPosition dest_pos; /* scroll to */ GtkTreeRowReference *scroll_to_path; gfloat scroll_to_row_align; gfloat scroll_to_col_align; guint scroll_to_use_align : 1; guint source_set : 1; guint dest_set : 1; guint reorderable : 1; guint empty_view_drop :1; guint ctrl_pressed : 1; guint shift_pressed : 1; }; /* Signals */ enum { ITEM_ACTIVATED, SELECTION_CHANGED, SELECT_ALL, UNSELECT_ALL, SELECT_CURSOR_ITEM, TOGGLE_CURSOR_ITEM, MOVE_CURSOR, ACTIVATE_CURSOR_ITEM, LAST_SIGNAL }; /* Properties */ enum { PROP_0, PROP_PIXBUF_COLUMN, PROP_TEXT_COLUMN, PROP_MARKUP_COLUMN, PROP_SELECTION_MODE, PROP_ORIENTATION, PROP_MODEL, PROP_COLUMNS, PROP_ITEM_WIDTH, PROP_SPACING, PROP_ROW_SPACING, PROP_COLUMN_SPACING, PROP_MARGIN, PROP_REORDERABLE }; /* GObject vfuncs */ static void gtk_icon_view_cell_layout_init (GtkCellLayoutIface *iface); static void gtk_icon_view_finalize (GObject *object); static void gtk_icon_view_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec); static void gtk_icon_view_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec); /* GtkObject vfuncs */ static void gtk_icon_view_destroy (GtkObject *object); /* GtkWidget vfuncs */ static void gtk_icon_view_realize (GtkWidget *widget); static void gtk_icon_view_unrealize (GtkWidget *widget); static void gtk_icon_view_style_set (GtkWidget *widget, GtkStyle *previous_style); static void gtk_icon_view_state_changed (GtkWidget *widget, GtkStateType previous_state); static void gtk_icon_view_size_request (GtkWidget *widget, GtkRequisition *requisition); static void gtk_icon_view_size_allocate (GtkWidget *widget, GtkAllocation *allocation); static gboolean gtk_icon_view_expose (GtkWidget *widget, GdkEventExpose *expose); static gboolean gtk_icon_view_motion (GtkWidget *widget, GdkEventMotion *event); static gboolean gtk_icon_view_button_press (GtkWidget *widget, GdkEventButton *event); static gboolean gtk_icon_view_button_release (GtkWidget *widget, GdkEventButton *event); static AtkObject *gtk_icon_view_get_accessible (GtkWidget *widget); /* GtkContainer vfuncs */ static void gtk_icon_view_remove (GtkContainer *container, GtkWidget *widget); static void gtk_icon_view_forall (GtkContainer *container, gboolean include_internals, GtkCallback callback, gpointer callback_data); /* GtkIconView vfuncs */ static void gtk_icon_view_set_adjustments (GtkIconView *icon_view, GtkAdjustment *hadj, GtkAdjustment *vadj); static void gtk_icon_view_real_select_all (GtkIconView *icon_view); static void gtk_icon_view_real_unselect_all (GtkIconView *icon_view); static void gtk_icon_view_real_select_cursor_item (GtkIconView *icon_view); static void gtk_icon_view_real_toggle_cursor_item (GtkIconView *icon_view); static gboolean gtk_icon_view_real_activate_cursor_item (GtkIconView *icon_view); /* Internal functions */ static void gtk_icon_view_adjustment_changed (GtkAdjustment *adjustment, GtkIconView *icon_view); static void gtk_icon_view_layout (GtkIconView *icon_view); static void gtk_icon_view_paint_item (GtkIconView *icon_view, cairo_t *cr, GtkIconViewItem *item, GdkRectangle *area, GdkDrawable *drawable, gint x, gint y, gboolean draw_focus); static void gtk_icon_view_paint_rubberband (GtkIconView *icon_view, cairo_t *cr, GdkRectangle *area); static void gtk_icon_view_queue_draw_path (GtkIconView *icon_view, GtkTreePath *path); static void gtk_icon_view_queue_draw_item (GtkIconView *icon_view, GtkIconViewItem *item); static void gtk_icon_view_queue_layout (GtkIconView *icon_view); static void gtk_icon_view_set_cursor_item (GtkIconView *icon_view, GtkIconViewItem *item, gint cursor_cell); static void gtk_icon_view_start_rubberbanding (GtkIconView *icon_view, gint x, gint y); static void gtk_icon_view_stop_rubberbanding (GtkIconView *icon_view); static void gtk_icon_view_update_rubberband_selection (GtkIconView *icon_view); static gboolean gtk_icon_view_item_hit_test (GtkIconView *icon_view, GtkIconViewItem *item, gint x, gint y, gint width, gint height); static gboolean gtk_icon_view_unselect_all_internal (GtkIconView *icon_view); static void gtk_icon_view_calculate_item_size (GtkIconView *icon_view, GtkIconViewItem *item); static void gtk_icon_view_calculate_item_size2 (GtkIconView *icon_view, GtkIconViewItem *item, gint *max_height); static void gtk_icon_view_update_rubberband (gpointer data); static void gtk_icon_view_item_invalidate_size (GtkIconViewItem *item); static void gtk_icon_view_invalidate_sizes (GtkIconView *icon_view); static void gtk_icon_view_add_move_binding (GtkBindingSet *binding_set, guint keyval, guint modmask, GtkMovementStep step, gint count); static gboolean gtk_icon_view_real_move_cursor (GtkIconView *icon_view, GtkMovementStep step, gint count); static void gtk_icon_view_move_cursor_up_down (GtkIconView *icon_view, gint count); static void gtk_icon_view_move_cursor_page_up_down (GtkIconView *icon_view, gint count); static void gtk_icon_view_move_cursor_left_right (GtkIconView *icon_view, gint count); static void gtk_icon_view_move_cursor_start_end (GtkIconView *icon_view, gint count); static void gtk_icon_view_scroll_to_item (GtkIconView *icon_view, GtkIconViewItem *item); static void gtk_icon_view_select_item (GtkIconView *icon_view, GtkIconViewItem *item); static void gtk_icon_view_unselect_item (GtkIconView *icon_view, GtkIconViewItem *item); static gboolean gtk_icon_view_select_all_between (GtkIconView *icon_view, GtkIconViewItem *anchor, GtkIconViewItem *cursor); static GtkIconViewItem * gtk_icon_view_get_item_at_coords (GtkIconView *icon_view, gint x, gint y, gboolean only_in_cell, GtkIconViewCellInfo **cell_at_pos); static void gtk_icon_view_get_cell_area (GtkIconView *icon_view, GtkIconViewItem *item, GtkIconViewCellInfo *cell_info, GdkRectangle *cell_area); static void gtk_icon_view_get_cell_box (GtkIconView *icon_view, GtkIconViewItem *item, GtkIconViewCellInfo *info, GdkRectangle *box); static GtkIconViewCellInfo *gtk_icon_view_get_cell_info (GtkIconView *icon_view, GtkCellRenderer *renderer); static void gtk_icon_view_set_cell_data (GtkIconView *icon_view, GtkIconViewItem *item); static void gtk_icon_view_cell_layout_pack_start (GtkCellLayout *layout, GtkCellRenderer *renderer, gboolean expand); static void gtk_icon_view_cell_layout_pack_end (GtkCellLayout *layout, GtkCellRenderer *renderer, gboolean expand); static void gtk_icon_view_cell_layout_add_attribute (GtkCellLayout *layout, GtkCellRenderer *renderer, const gchar *attribute, gint column); static void gtk_icon_view_cell_layout_clear (GtkCellLayout *layout); static void gtk_icon_view_cell_layout_clear_attributes (GtkCellLayout *layout, GtkCellRenderer *renderer); static void gtk_icon_view_cell_layout_set_cell_data_func (GtkCellLayout *layout, GtkCellRenderer *cell, GtkCellLayoutDataFunc func, gpointer func_data, GDestroyNotify destroy); static void gtk_icon_view_cell_layout_reorder (GtkCellLayout *layout, GtkCellRenderer *cell, gint position); static GList * gtk_icon_view_cell_layout_get_cells (GtkCellLayout *layout); static void gtk_icon_view_item_activate_cell (GtkIconView *icon_view, GtkIconViewItem *item, GtkIconViewCellInfo *cell_info, GdkEvent *event); static void gtk_icon_view_put (GtkIconView *icon_view, GtkWidget *widget, GtkIconViewItem *item, gint cell); static void gtk_icon_view_remove_widget (GtkCellEditable *editable, GtkIconView *icon_view); static void gtk_icon_view_start_editing (GtkIconView *icon_view, GtkIconViewItem *item, GtkIconViewCellInfo *cell_info, GdkEvent *event); static void gtk_icon_view_stop_editing (GtkIconView *icon_view, gboolean cancel_editing); /* Source side drag signals */ static void gtk_icon_view_drag_begin (GtkWidget *widget, GdkDragContext *context); static void gtk_icon_view_drag_end (GtkWidget *widget, GdkDragContext *context); static void gtk_icon_view_drag_data_get (GtkWidget *widget, GdkDragContext *context, GtkSelectionData *selection_data, guint info, guint time); static void gtk_icon_view_drag_data_delete (GtkWidget *widget, GdkDragContext *context); /* Target side drag signals */ static void gtk_icon_view_drag_leave (GtkWidget *widget, GdkDragContext *context, guint time); static gboolean gtk_icon_view_drag_motion (GtkWidget *widget, GdkDragContext *context, gint x, gint y, guint time); static gboolean gtk_icon_view_drag_drop (GtkWidget *widget, GdkDragContext *context, gint x, gint y, guint time); static void gtk_icon_view_drag_data_received (GtkWidget *widget, GdkDragContext *context, gint x, gint y, GtkSelectionData *selection_data, guint info, guint time); static gboolean gtk_icon_view_maybe_begin_drag (GtkIconView *icon_view, GdkEventMotion *event); static void remove_scroll_timeout (GtkIconView *icon_view); static void clear_dest_info (GtkIconView *icon_view); static void clear_source_info (GtkIconView *icon_view); static guint icon_view_signals[LAST_SIGNAL] = { 0 }; G_DEFINE_TYPE_WITH_CODE (GtkIconView, gtk_icon_view, GTK_TYPE_CONTAINER, G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_LAYOUT, gtk_icon_view_cell_layout_init)) static void gtk_icon_view_class_init (GtkIconViewClass *klass) { GObjectClass *gobject_class; GtkObjectClass *object_class; GtkWidgetClass *widget_class; GtkContainerClass *container_class; GtkBindingSet *binding_set; binding_set = gtk_binding_set_by_class (klass); g_type_class_add_private (klass, sizeof (GtkIconViewPrivate)); gobject_class = (GObjectClass *) klass; object_class = (GtkObjectClass *) klass; widget_class = (GtkWidgetClass *) klass; container_class = (GtkContainerClass *) klass; gobject_class->finalize = gtk_icon_view_finalize; gobject_class->set_property = gtk_icon_view_set_property; gobject_class->get_property = gtk_icon_view_get_property; object_class->destroy = gtk_icon_view_destroy; widget_class->realize = gtk_icon_view_realize; widget_class->unrealize = gtk_icon_view_unrealize; widget_class->style_set = gtk_icon_view_style_set; widget_class->get_accessible = gtk_icon_view_get_accessible; widget_class->size_request = gtk_icon_view_size_request; widget_class->size_allocate = gtk_icon_view_size_allocate; widget_class->expose_event = gtk_icon_view_expose; widget_class->motion_notify_event = gtk_icon_view_motion; widget_class->button_press_event = gtk_icon_view_button_press; widget_class->button_release_event = gtk_icon_view_button_release; widget_class->drag_begin = gtk_icon_view_drag_begin; widget_class->drag_end = gtk_icon_view_drag_end; widget_class->drag_data_get = gtk_icon_view_drag_data_get; widget_class->drag_data_delete = gtk_icon_view_drag_data_delete; widget_class->drag_leave = gtk_icon_view_drag_leave; widget_class->drag_motion = gtk_icon_view_drag_motion; widget_class->drag_drop = gtk_icon_view_drag_drop; widget_class->drag_data_received = gtk_icon_view_drag_data_received; widget_class->state_changed = gtk_icon_view_state_changed; container_class->remove = gtk_icon_view_remove; container_class->forall = gtk_icon_view_forall; klass->set_scroll_adjustments = gtk_icon_view_set_adjustments; klass->select_all = gtk_icon_view_real_select_all; klass->unselect_all = gtk_icon_view_real_unselect_all; klass->select_cursor_item = gtk_icon_view_real_select_cursor_item; klass->toggle_cursor_item = gtk_icon_view_real_toggle_cursor_item; klass->activate_cursor_item = gtk_icon_view_real_activate_cursor_item; klass->move_cursor = gtk_icon_view_real_move_cursor; /* Properties */ /** * GtkIconView:selection-mode: * * The ::selection-mode property specifies the selection mode of * icon view. If the mode is #GTK_SELECTION_MULTIPLE, rubberband selection * is enabled, for the other modes, only keyboard selection is possible. * * Since: 2.6 */ g_object_class_install_property (gobject_class, PROP_SELECTION_MODE, g_param_spec_enum ("selection-mode", P_("Selection mode"), P_("The selection mode"), GTK_TYPE_SELECTION_MODE, GTK_SELECTION_SINGLE, GTK_PARAM_READWRITE)); /** * GtkIconView:pixbuf-column: * * The ::pixbuf-column property contains the number of the model column * containing the pixbufs which are displayed. The pixbuf column must be * of type #GDK_TYPE_PIXBUF. Setting this property to -1 turns off the * display of pixbufs. * * Since: 2.6 */ g_object_class_install_property (gobject_class, PROP_PIXBUF_COLUMN, g_param_spec_int ("pixbuf-column", P_("Pixbuf column"), P_("Model column used to retrieve the icon pixbuf from"), -1, G_MAXINT, -1, GTK_PARAM_READWRITE)); /** * GtkIconView:text-column: * * The ::text-column property contains the number of the model column * containing the texts which are displayed. The text column must be * of type #G_TYPE_STRING. If this property and the :markup-column * property are both set to -1, no texts are displayed. * * Since: 2.6 */ g_object_class_install_property (gobject_class, PROP_TEXT_COLUMN, g_param_spec_int ("text-column", P_("Text column"), P_("Model column used to retrieve the text from"), -1, G_MAXINT, -1, GTK_PARAM_READWRITE)); /** * GtkIconView:markup-column: * * The ::markup-column property contains the number of the model column * containing markup information to be displayed. The markup column must be * of type #G_TYPE_STRING. If this property and the :text-column property * are both set to column numbers, it overrides the text column. * If both are set to -1, no texts are displayed. * * Since: 2.6 */ g_object_class_install_property (gobject_class, PROP_MARKUP_COLUMN, g_param_spec_int ("markup-column", P_("Markup column"), P_("Model column used to retrieve the text if using Pango markup"), -1, G_MAXINT, -1, GTK_PARAM_READWRITE)); g_object_class_install_property (gobject_class, PROP_MODEL, g_param_spec_object ("model", P_("Icon View Model"), P_("The model for the icon view"), GTK_TYPE_TREE_MODEL, GTK_PARAM_READWRITE)); /** * GtkIconView:columns: * * The columns property contains the number of the columns in which the * items should be displayed. If it is -1, the number of columns will * be chosen automatically to fill the available area. * * Since: 2.6 */ g_object_class_install_property (gobject_class, PROP_COLUMNS, g_param_spec_int ("columns", P_("Number of columns"), P_("Number of columns to display"), -1, G_MAXINT, -1, GTK_PARAM_READWRITE)); /** * GtkIconView:item-width: * * The item-width property specifies the width to use for each item. * If it is set to -1, the icon view will automatically determine a * suitable item size. * * Since: 2.6 */ g_object_class_install_property (gobject_class, PROP_ITEM_WIDTH, g_param_spec_int ("item-width", P_("Width for each item"), P_("The width used for each item"), -1, G_MAXINT, -1, GTK_PARAM_READWRITE)); /** * GtkIconView:spacing: * * The spacing property specifies the space which is inserted between * the cells (i.e. the icon and the text) of an item. * * Since: 2.6 */ g_object_class_install_property (gobject_class, PROP_SPACING, g_param_spec_int ("spacing", P_("Spacing"), P_("Space which is inserted between cells of an item"), 0, G_MAXINT, 0, GTK_PARAM_READWRITE)); /** * GtkIconView:row-spacing: * * The row-spacing property specifies the space which is inserted between * the rows of the icon view. * * Since: 2.6 */ g_object_class_install_property (gobject_class, PROP_ROW_SPACING, g_param_spec_int ("row-spacing", P_("Row Spacing"), P_("Space which is inserted between grid rows"), 0, G_MAXINT, 6, GTK_PARAM_READWRITE)); /** * GtkIconView:column-spacing: * * The column-spacing property specifies the space which is inserted between * the columns of the icon view. * * Since: 2.6 */ g_object_class_install_property (gobject_class, PROP_COLUMN_SPACING, g_param_spec_int ("column-spacing", P_("Column Spacing"), P_("Space which is inserted between grid columns"), 0, G_MAXINT, 6, GTK_PARAM_READWRITE)); /** * GtkIconView:margin: * * The margin property specifies the space which is inserted * at the edges of the icon view. * * Since: 2.6 */ g_object_class_install_property (gobject_class, PROP_MARGIN, g_param_spec_int ("margin", P_("Margin"), P_("Space which is inserted at the edges of the icon view"), 0, G_MAXINT, 6, GTK_PARAM_READWRITE)); /** * GtkIconView:orientation: * * The orientation property specifies how the cells (i.e. the icon and * the text) of the item are positioned relative to each other. * * Since: 2.6 */ g_object_class_install_property (gobject_class, PROP_ORIENTATION, g_param_spec_enum ("orientation", P_("Orientation"), P_("How the text and icon of each item are positioned relative to each other"), GTK_TYPE_ORIENTATION, GTK_ORIENTATION_VERTICAL, GTK_PARAM_READWRITE)); /** * GtkIconView:reorderable: * * The reorderable property specifies if the items can be reordered * by DND. * * Since: 2.8 */ g_object_class_install_property (gobject_class, PROP_REORDERABLE, g_param_spec_boolean ("reorderable", P_("Reorderable"), P_("View is reorderable"), FALSE, G_PARAM_READWRITE)); /* Style properties */ gtk_widget_class_install_style_property (widget_class, g_param_spec_boxed ("selection-box-color", P_("Selection Box Color"), P_("Color of the selection box"), GDK_TYPE_COLOR, GTK_PARAM_READABLE)); gtk_widget_class_install_style_property (widget_class, g_param_spec_uchar ("selection-box-alpha", P_("Selection Box Alpha"), P_("Opacity of the selection box"), 0, 0xff, 0x40, GTK_PARAM_READABLE)); /* Signals */ widget_class->set_scroll_adjustments_signal = g_signal_new (I_("set_scroll_adjustments"), G_TYPE_FROM_CLASS (gobject_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GtkIconViewClass, set_scroll_adjustments), NULL, NULL, _gtk_marshal_VOID__OBJECT_OBJECT, G_TYPE_NONE, 2, GTK_TYPE_ADJUSTMENT, GTK_TYPE_ADJUSTMENT); icon_view_signals[ITEM_ACTIVATED] = g_signal_new (I_("item_activated"), G_TYPE_FROM_CLASS (gobject_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GtkIconViewClass, item_activated), NULL, NULL, g_cclosure_marshal_VOID__BOXED, G_TYPE_NONE, 1, GTK_TYPE_TREE_PATH); icon_view_signals[SELECTION_CHANGED] = g_signal_new (I_("selection-changed"), G_TYPE_FROM_CLASS (gobject_class), G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (GtkIconViewClass, selection_changed), NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); icon_view_signals[SELECT_ALL] = g_signal_new (I_("select_all"), G_TYPE_FROM_CLASS (gobject_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GtkIconViewClass, select_all), NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); icon_view_signals[UNSELECT_ALL] = g_signal_new (I_("unselect_all"), G_TYPE_FROM_CLASS (gobject_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GtkIconViewClass, unselect_all), NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); icon_view_signals[SELECT_CURSOR_ITEM] = g_signal_new (I_("select_cursor_item"), G_TYPE_FROM_CLASS (gobject_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GtkIconViewClass, select_cursor_item), NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); icon_view_signals[TOGGLE_CURSOR_ITEM] = g_signal_new (I_("toggle_cursor_item"), G_TYPE_FROM_CLASS (gobject_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GtkIconViewClass, toggle_cursor_item), NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); icon_view_signals[ACTIVATE_CURSOR_ITEM] = g_signal_new (I_("activate_cursor_item"), G_TYPE_FROM_CLASS (gobject_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GtkIconViewClass, activate_cursor_item), NULL, NULL, _gtk_marshal_BOOLEAN__VOID, G_TYPE_BOOLEAN, 0); icon_view_signals[MOVE_CURSOR] = g_signal_new (I_("move_cursor"), G_TYPE_FROM_CLASS (gobject_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GtkIconViewClass, move_cursor), NULL, NULL, _gtk_marshal_BOOLEAN__ENUM_INT, G_TYPE_BOOLEAN, 2, GTK_TYPE_MOVEMENT_STEP, G_TYPE_INT); /* Key bindings */ gtk_binding_entry_add_signal (binding_set, GDK_a, GDK_CONTROL_MASK, "select_all", 0); gtk_binding_entry_add_signal (binding_set, GDK_a, GDK_CONTROL_MASK | GDK_SHIFT_MASK, "unselect_all", 0); gtk_binding_entry_add_signal (binding_set, GDK_space, GDK_CONTROL_MASK, "toggle_cursor_item", 0); gtk_binding_entry_add_signal (binding_set, GDK_space, 0, "activate_cursor_item", 0); gtk_binding_entry_add_signal (binding_set, GDK_Return, 0, "activate_cursor_item", 0); gtk_binding_entry_add_signal (binding_set, GDK_ISO_Enter, 0, "activate_cursor_item", 0); gtk_binding_entry_add_signal (binding_set, GDK_KP_Enter, 0, "activate_cursor_item", 0); gtk_icon_view_add_move_binding (binding_set, GDK_Up, 0, GTK_MOVEMENT_DISPLAY_LINES, -1); gtk_icon_view_add_move_binding (binding_set, GDK_KP_Up, 0, GTK_MOVEMENT_DISPLAY_LINES, -1); gtk_icon_view_add_move_binding (binding_set, GDK_Down, 0, GTK_MOVEMENT_DISPLAY_LINES, 1); gtk_icon_view_add_move_binding (binding_set, GDK_KP_Down, 0, GTK_MOVEMENT_DISPLAY_LINES, 1); gtk_icon_view_add_move_binding (binding_set, GDK_p, GDK_CONTROL_MASK, GTK_MOVEMENT_DISPLAY_LINES, -1); gtk_icon_view_add_move_binding (binding_set, GDK_n, GDK_CONTROL_MASK, GTK_MOVEMENT_DISPLAY_LINES, 1); gtk_icon_view_add_move_binding (binding_set, GDK_Home, 0, GTK_MOVEMENT_BUFFER_ENDS, -1); gtk_icon_view_add_move_binding (binding_set, GDK_KP_Home, 0, GTK_MOVEMENT_BUFFER_ENDS, -1); gtk_icon_view_add_move_binding (binding_set, GDK_End, 0, GTK_MOVEMENT_BUFFER_ENDS, 1); gtk_icon_view_add_move_binding (binding_set, GDK_KP_End, 0, GTK_MOVEMENT_BUFFER_ENDS, 1); gtk_icon_view_add_move_binding (binding_set, GDK_Page_Up, 0, GTK_MOVEMENT_PAGES, -1); gtk_icon_view_add_move_binding (binding_set, GDK_KP_Page_Up, 0, GTK_MOVEMENT_PAGES, -1); gtk_icon_view_add_move_binding (binding_set, GDK_Page_Down, 0, GTK_MOVEMENT_PAGES, 1); gtk_icon_view_add_move_binding (binding_set, GDK_KP_Page_Down, 0, GTK_MOVEMENT_PAGES, 1); gtk_icon_view_add_move_binding (binding_set, GDK_Right, 0, GTK_MOVEMENT_VISUAL_POSITIONS, 1); gtk_icon_view_add_move_binding (binding_set, GDK_Left, 0, GTK_MOVEMENT_VISUAL_POSITIONS, -1); gtk_icon_view_add_move_binding (binding_set, GDK_KP_Right, 0, GTK_MOVEMENT_VISUAL_POSITIONS, 1); gtk_icon_view_add_move_binding (binding_set, GDK_KP_Left, 0, GTK_MOVEMENT_VISUAL_POSITIONS, -1); } static void gtk_icon_view_cell_layout_init (GtkCellLayoutIface *iface) { iface->pack_start = gtk_icon_view_cell_layout_pack_start; iface->pack_end = gtk_icon_view_cell_layout_pack_end; iface->clear = gtk_icon_view_cell_layout_clear; iface->add_attribute = gtk_icon_view_cell_layout_add_attribute; iface->set_cell_data_func = gtk_icon_view_cell_layout_set_cell_data_func; iface->clear_attributes = gtk_icon_view_cell_layout_clear_attributes; iface->reorder = gtk_icon_view_cell_layout_reorder; iface->get_cells = gtk_icon_view_cell_layout_get_cells; } static void gtk_icon_view_init (GtkIconView *icon_view) { icon_view->priv = GTK_ICON_VIEW_GET_PRIVATE (icon_view); icon_view->priv->width = 0; icon_view->priv->height = 0; icon_view->priv->selection_mode = GTK_SELECTION_SINGLE; icon_view->priv->pressed_button = -1; icon_view->priv->press_start_x = -1; icon_view->priv->press_start_y = -1; icon_view->priv->text_column = -1; icon_view->priv->markup_column = -1; icon_view->priv->pixbuf_column = -1; icon_view->priv->text_cell = -1; icon_view->priv->pixbuf_cell = -1; GTK_WIDGET_SET_FLAGS (icon_view, GTK_CAN_FOCUS); gtk_icon_view_set_adjustments (icon_view, NULL, NULL); icon_view->priv->cell_list = NULL; icon_view->priv->n_cells = 0; icon_view->priv->cursor_cell = -1; icon_view->priv->orientation = GTK_ORIENTATION_VERTICAL; icon_view->priv->columns = -1; icon_view->priv->item_width = -1; icon_view->priv->spacing = 0; icon_view->priv->row_spacing = 6; icon_view->priv->column_spacing = 6; icon_view->priv->margin = 6; } static void gtk_icon_view_destroy (GtkObject *object) { GtkIconView *icon_view; icon_view = GTK_ICON_VIEW (object); gtk_icon_view_stop_editing (icon_view, TRUE); gtk_icon_view_set_model (icon_view, NULL); if (icon_view->priv->layout_idle_id != 0) { g_source_remove (icon_view->priv->layout_idle_id); icon_view->priv->layout_idle_id = 0; } if (icon_view->priv->scroll_to_path != NULL) { gtk_tree_row_reference_free (icon_view->priv->scroll_to_path); icon_view->priv->scroll_to_path = NULL; } remove_scroll_timeout (icon_view); if (icon_view->priv->hadjustment != NULL) { g_object_unref (icon_view->priv->hadjustment); icon_view->priv->hadjustment = NULL; } if (icon_view->priv->vadjustment != NULL) { g_object_unref (icon_view->priv->vadjustment); icon_view->priv->vadjustment = NULL; } clear_dest_info (icon_view); clear_source_info (icon_view); (* GTK_OBJECT_CLASS (gtk_icon_view_parent_class)->destroy) (object); } /* GObject methods */ static void gtk_icon_view_finalize (GObject *object) { gtk_icon_view_cell_layout_clear (GTK_CELL_LAYOUT (object)); (* G_OBJECT_CLASS (gtk_icon_view_parent_class)->finalize) (object); } static void gtk_icon_view_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) { GtkIconView *icon_view; icon_view = GTK_ICON_VIEW (object); switch (prop_id) { case PROP_SELECTION_MODE: gtk_icon_view_set_selection_mode (icon_view, g_value_get_enum (value)); break; case PROP_PIXBUF_COLUMN: gtk_icon_view_set_pixbuf_column (icon_view, g_value_get_int (value)); break; case PROP_TEXT_COLUMN: gtk_icon_view_set_text_column (icon_view, g_value_get_int (value)); break; case PROP_MARKUP_COLUMN: gtk_icon_view_set_markup_column (icon_view, g_value_get_int (value)); break; case PROP_MODEL: gtk_icon_view_set_model (icon_view, g_value_get_object (value)); break; case PROP_ORIENTATION: gtk_icon_view_set_orientation (icon_view, g_value_get_enum (value)); break; case PROP_COLUMNS: gtk_icon_view_set_columns (icon_view, g_value_get_int (value)); break; case PROP_ITEM_WIDTH: gtk_icon_view_set_item_width (icon_view, g_value_get_int (value)); break; case PROP_SPACING: gtk_icon_view_set_spacing (icon_view, g_value_get_int (value)); break; case PROP_ROW_SPACING: gtk_icon_view_set_row_spacing (icon_view, g_value_get_int (value)); break; case PROP_COLUMN_SPACING: gtk_icon_view_set_column_spacing (icon_view, g_value_get_int (value)); break; case PROP_MARGIN: gtk_icon_view_set_margin (icon_view, g_value_get_int (value)); break; case PROP_REORDERABLE: gtk_icon_view_set_reorderable (icon_view, g_value_get_boolean (value)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gtk_icon_view_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) { GtkIconView *icon_view; icon_view = GTK_ICON_VIEW (object); switch (prop_id) { case PROP_SELECTION_MODE: g_value_set_enum (value, icon_view->priv->selection_mode); break; case PROP_PIXBUF_COLUMN: g_value_set_int (value, icon_view->priv->pixbuf_column); break; case PROP_TEXT_COLUMN: g_value_set_int (value, icon_view->priv->text_column); break; case PROP_MARKUP_COLUMN: g_value_set_int (value, icon_view->priv->markup_column); break; case PROP_MODEL: g_value_set_object (value, icon_view->priv->model); break; case PROP_ORIENTATION: g_value_set_enum (value, icon_view->priv->orientation); break; case PROP_COLUMNS: g_value_set_int (value, icon_view->priv->columns); break; case PROP_ITEM_WIDTH: g_value_set_int (value, icon_view->priv->item_width); break; case PROP_SPACING: g_value_set_int (value, icon_view->priv->spacing); break; case PROP_ROW_SPACING: g_value_set_int (value, icon_view->priv->row_spacing); break; case PROP_COLUMN_SPACING: g_value_set_int (value, icon_view->priv->column_spacing); break; case PROP_MARGIN: g_value_set_int (value, icon_view->priv->margin); break; case PROP_REORDERABLE: g_value_set_boolean (value, icon_view->priv->reorderable); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } /* GtkWidget signals */ static void gtk_icon_view_realize (GtkWidget *widget) { GtkIconView *icon_view; GdkWindowAttr attributes; gint attributes_mask; icon_view = GTK_ICON_VIEW (widget); GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED); /* Make the main, clipping window */ attributes.window_type = GDK_WINDOW_CHILD; attributes.x = widget->allocation.x; attributes.y = widget->allocation.y; attributes.width = widget->allocation.width; attributes.height = widget->allocation.height; attributes.wclass = GDK_INPUT_OUTPUT; attributes.visual = gtk_widget_get_visual (widget); attributes.colormap = gtk_widget_get_colormap (widget); attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK; attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP; widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask); gdk_window_set_back_pixmap (widget->window, NULL, FALSE); gdk_window_set_user_data (widget->window, widget); /* Make the window for the icon view */ attributes.x = 0; attributes.y = 0; attributes.width = MAX (icon_view->priv->width, widget->allocation.width); attributes.height = MAX (icon_view->priv->height, widget->allocation.height); attributes.event_mask = (GDK_EXPOSURE_MASK | GDK_SCROLL_MASK | GDK_POINTER_MOTION_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK) | gtk_widget_get_events (widget); icon_view->priv->bin_window = gdk_window_new (widget->window, &attributes, attributes_mask); gdk_window_set_user_data (icon_view->priv->bin_window, widget); widget->style = gtk_style_attach (widget->style, widget->window); gdk_window_set_background (icon_view->priv->bin_window, &widget->style->base[widget->state]); gdk_window_show (icon_view->priv->bin_window); } static void gtk_icon_view_unrealize (GtkWidget *widget) { GtkIconView *icon_view; icon_view = GTK_ICON_VIEW (widget); gdk_window_set_user_data (icon_view->priv->bin_window, NULL); gdk_window_destroy (icon_view->priv->bin_window); icon_view->priv->bin_window = NULL; /* GtkWidget::unrealize destroys children and widget->window */ if (GTK_WIDGET_CLASS (gtk_icon_view_parent_class)->unrealize) (* GTK_WIDGET_CLASS (gtk_icon_view_parent_class)->unrealize) (widget); } static void gtk_icon_view_state_changed (GtkWidget *widget, GtkStateType previous_state) { GtkIconView *icon_view = GTK_ICON_VIEW (widget); if (GTK_WIDGET_REALIZED (widget)) { gdk_window_set_background (widget->window, &widget->style->base[widget->state]); gdk_window_set_background (icon_view->priv->bin_window, &widget->style->base[widget->state]); } gtk_widget_queue_draw (widget); } static void gtk_icon_view_style_set (GtkWidget *widget, GtkStyle *previous_style) { GtkIconView *icon_view; g_return_if_fail (GTK_IS_ICON_VIEW (widget)); icon_view = GTK_ICON_VIEW (widget); if (GTK_WIDGET_REALIZED (widget)) { gdk_window_set_background (widget->window, &widget->style->base[widget->state]); gdk_window_set_background (icon_view->priv->bin_window, &widget->style->base[widget->state]); } gtk_widget_queue_resize (widget); } static void gtk_icon_view_size_request (GtkWidget *widget, GtkRequisition *requisition) { GtkIconView *icon_view; GList *tmp_list; icon_view = GTK_ICON_VIEW (widget); requisition->width = icon_view->priv->width; requisition->height = icon_view->priv->height; tmp_list = icon_view->priv->children; while (tmp_list) { GtkIconViewChild *child = tmp_list->data; GtkRequisition child_requisition; tmp_list = tmp_list->next; if (GTK_WIDGET_VISIBLE (child->widget)) gtk_widget_size_request (child->widget, &child_requisition); } } static void gtk_icon_view_allocate_children (GtkIconView *icon_view) { GList *list; for (list = icon_view->priv->children; list; list = list->next) { GtkIconViewChild *child = list->data; GtkAllocation allocation; /* totally ignore our child's requisition */ if (child->cell < 0) { allocation.x = child->item->x; allocation.y = child->item->y; allocation.width = child->item->width; allocation.height = child->item->height; } else { GdkRectangle *box = &child->item->box[child->cell]; allocation.x = box->x; allocation.y = box->y; allocation.width = box->width; allocation.height = box->height; } gtk_widget_size_allocate (child->widget, &allocation); } } static void gtk_icon_view_size_allocate (GtkWidget *widget, GtkAllocation *allocation) { GtkIconView *icon_view = GTK_ICON_VIEW (widget); GtkAdjustment *hadjustment, *vadjustment; widget->allocation = *allocation; if (GTK_WIDGET_REALIZED (widget)) { gdk_window_move_resize (widget->window, allocation->x, allocation->y, allocation->width, allocation->height); gdk_window_resize (icon_view->priv->bin_window, MAX (icon_view->priv->width, allocation->width), MAX (icon_view->priv->height, allocation->height)); } gtk_icon_view_layout (icon_view); gtk_icon_view_allocate_children (icon_view); hadjustment = icon_view->priv->hadjustment; vadjustment = icon_view->priv->vadjustment; hadjustment->page_size = allocation->width; hadjustment->page_increment = allocation->width * 0.9; hadjustment->step_increment = allocation->width * 0.1; hadjustment->lower = 0; hadjustment->upper = MAX (allocation->width, icon_view->priv->width); if (hadjustment->value > hadjustment->upper - hadjustment->page_size) gtk_adjustment_set_value (hadjustment, MAX (0, hadjustment->upper - hadjustment->page_size)); vadjustment->page_size = allocation->height; vadjustment->page_increment = allocation->height * 0.9; vadjustment->step_increment = allocation->height * 0.1; vadjustment->lower = 0; vadjustment->upper = MAX (allocation->height, icon_view->priv->height); if (vadjustment->value > vadjustment->upper - vadjustment->page_size) gtk_adjustment_set_value (vadjustment, MAX (0, vadjustment->upper - vadjustment->page_size)); if (GTK_WIDGET_REALIZED (widget) && icon_view->priv->scroll_to_path) { GtkTreePath *path; path = gtk_tree_row_reference_get_path (icon_view->priv->scroll_to_path); gtk_tree_row_reference_free (icon_view->priv->scroll_to_path); icon_view->priv->scroll_to_path = NULL; gtk_icon_view_scroll_to_path (icon_view, path, icon_view->priv->scroll_to_use_align, icon_view->priv->scroll_to_row_align, icon_view->priv->scroll_to_col_align); gtk_tree_path_free (path); } else { gtk_adjustment_changed (hadjustment); gtk_adjustment_changed (vadjustment); } } static gboolean gtk_icon_view_expose (GtkWidget *widget, GdkEventExpose *expose) { GtkIconView *icon_view; GList *icons; cairo_t *cr; GtkTreePath *path; gint dest_index; GtkIconViewDropPosition dest_pos; GtkIconViewItem *dest_item = NULL; icon_view = GTK_ICON_VIEW (widget); if (expose->window != icon_view->priv->bin_window) return FALSE; cr = gdk_cairo_create (icon_view->priv->bin_window); cairo_set_line_width (cr, 1.); gtk_icon_view_get_drag_dest_item (icon_view, &path, &dest_pos); if (path) { dest_index = gtk_tree_path_get_indices (path)[0]; gtk_tree_path_free (path); } else dest_index = -1; for (icons = icon_view->priv->items; icons; icons = icons->next) { GtkIconViewItem *item = icons->data; GdkRectangle area; area.x = item->x; area.y = item->y; area.width = item->width; area.height = item->height; if (gdk_region_rect_in (expose->region, &area) == GDK_OVERLAP_RECTANGLE_OUT) continue; gtk_icon_view_paint_item (icon_view, cr, item, &expose->area, icon_view->priv->bin_window, item->x, item->y, TRUE); if (dest_index == item->index) dest_item = item; } if (dest_item) { switch (dest_pos) { case GTK_ICON_VIEW_DROP_INTO: gtk_paint_focus (widget->style, icon_view->priv->bin_window, GTK_WIDGET_STATE (widget), NULL, widget, "iconview-drop-indicator", dest_item->x, dest_item->y, dest_item->width, dest_item->height); break; case GTK_ICON_VIEW_DROP_ABOVE: gtk_paint_focus (widget->style, icon_view->priv->bin_window, GTK_WIDGET_STATE (widget), NULL, widget, "iconview-drop-indicator", dest_item->x, dest_item->y - 1, dest_item->width, 2); break; case GTK_ICON_VIEW_DROP_LEFT: gtk_paint_focus (widget->style, icon_view->priv->bin_window, GTK_WIDGET_STATE (widget), NULL, widget, "iconview-drop-indicator", dest_item->x - 1, dest_item->y, 2, dest_item->height); break; case GTK_ICON_VIEW_DROP_BELOW: gtk_paint_focus (widget->style, icon_view->priv->bin_window, GTK_WIDGET_STATE (widget), NULL, widget, "iconview-drop-indicator", dest_item->x, dest_item->y + dest_item->height - 1, dest_item->width, 2); break; case GTK_ICON_VIEW_DROP_RIGHT: gtk_paint_focus (widget->style, icon_view->priv->bin_window, GTK_WIDGET_STATE (widget), NULL, widget, "iconview-drop-indicator", dest_item->x + dest_item->width - 1, dest_item->y, 2, dest_item->height); case GTK_ICON_VIEW_NO_DROP: ; break; } } if (icon_view->priv->doing_rubberband) { GdkRectangle *rectangles; gint n_rectangles; gdk_region_get_rectangles (expose->region, &rectangles, &n_rectangles); while (n_rectangles--) gtk_icon_view_paint_rubberband (icon_view, cr, &rectangles[n_rectangles]); g_free (rectangles); } cairo_destroy (cr); (* GTK_WIDGET_CLASS (gtk_icon_view_parent_class)->expose_event) (widget, expose); return TRUE; } static gboolean rubberband_scroll_timeout (gpointer data) { GtkIconView *icon_view; gdouble value; icon_view = data; value = MIN (icon_view->priv->vadjustment->value + icon_view->priv->scroll_value_diff, icon_view->priv->vadjustment->upper - icon_view->priv->vadjustment->page_size); gtk_adjustment_set_value (icon_view->priv->vadjustment, value); gtk_icon_view_update_rubberband (icon_view); return TRUE; } static gboolean gtk_icon_view_motion (GtkWidget *widget, GdkEventMotion *event) { GtkIconView *icon_view; gint abs_y; icon_view = GTK_ICON_VIEW (widget); gtk_icon_view_maybe_begin_drag (icon_view, event); if (icon_view->priv->doing_rubberband) { gtk_icon_view_update_rubberband (widget); abs_y = event->y - icon_view->priv->height * (icon_view->priv->vadjustment->value / (icon_view->priv->vadjustment->upper - icon_view->priv->vadjustment->lower)); if (abs_y < 0 || abs_y > widget->allocation.height) { if (abs_y < 0) icon_view->priv->scroll_value_diff = abs_y; else icon_view->priv->scroll_value_diff = abs_y - widget->allocation.height; icon_view->priv->event_last_x = event->x; icon_view->priv->event_last_y = event->y; if (icon_view->priv->scroll_timeout_id == 0) icon_view->priv->scroll_timeout_id = gdk_threads_add_timeout (30, rubberband_scroll_timeout, icon_view); } else remove_scroll_timeout (icon_view); } return TRUE; } static void gtk_icon_view_remove (GtkContainer *container, GtkWidget *widget) { GtkIconView *icon_view; GtkIconViewChild *child = NULL; GList *tmp_list; icon_view = GTK_ICON_VIEW (container); tmp_list = icon_view->priv->children; while (tmp_list) { child = tmp_list->data; if (child->widget == widget) { gtk_widget_unparent (widget); icon_view->priv->children = g_list_remove_link (icon_view->priv->children, tmp_list); g_list_free_1 (tmp_list); g_free (child); return; } tmp_list = tmp_list->next; } } static void gtk_icon_view_forall (GtkContainer *container, gboolean include_internals, GtkCallback callback, gpointer callback_data) { GtkIconView *icon_view; GtkIconViewChild *child = NULL; GList *tmp_list; icon_view = GTK_ICON_VIEW (container); tmp_list = icon_view->priv->children; while (tmp_list) { child = tmp_list->data; tmp_list = tmp_list->next; (* callback) (child->widget, callback_data); } } static void gtk_icon_view_item_activate_cell (GtkIconView *icon_view, GtkIconViewItem *item, GtkIconViewCellInfo *info, GdkEvent *event) { GtkTreePath *path; gchar *path_string; GdkRectangle cell_area; gboolean visible, mode; gtk_icon_view_set_cell_data (icon_view, item); g_object_get (info->cell, "visible", &visible, "mode", &mode, NULL); if (visible && mode == GTK_CELL_RENDERER_MODE_ACTIVATABLE) { gtk_icon_view_get_cell_area (icon_view, item, info, &cell_area); path = gtk_tree_path_new_from_indices (item->index, -1); path_string = gtk_tree_path_to_string (path); gtk_tree_path_free (path); gtk_cell_renderer_activate (info->cell, event, GTK_WIDGET (icon_view), path_string, &cell_area, &cell_area, 0); g_free (path_string); } } static void gtk_icon_view_put (GtkIconView *icon_view, GtkWidget *widget, GtkIconViewItem *item, gint cell) { GtkIconViewChild *child; child = g_new (GtkIconViewChild, 1); child->widget = widget; child->item = item; child->cell = cell; icon_view->priv->children = g_list_append (icon_view->priv->children, child); if (GTK_WIDGET_REALIZED (icon_view)) gtk_widget_set_parent_window (child->widget, icon_view->priv->bin_window); gtk_widget_set_parent (widget, GTK_WIDGET (icon_view)); } static void gtk_icon_view_remove_widget (GtkCellEditable *editable, GtkIconView *icon_view) { GList *l; GtkIconViewItem *item; if (icon_view->priv->edited_item == NULL) return; item = icon_view->priv->edited_item; icon_view->priv->edited_item = NULL; icon_view->priv->editable = NULL; for (l = icon_view->priv->cell_list; l; l = l->next) { GtkIconViewCellInfo *info = l->data; info->editing = FALSE; } if (GTK_WIDGET_HAS_FOCUS (editable)) gtk_widget_grab_focus (GTK_WIDGET (icon_view)); g_signal_handlers_disconnect_by_func (editable, gtk_icon_view_remove_widget, icon_view); gtk_container_remove (GTK_CONTAINER (icon_view), GTK_WIDGET (editable)); gtk_icon_view_queue_draw_item (icon_view, item); } static void gtk_icon_view_start_editing (GtkIconView *icon_view, GtkIconViewItem *item, GtkIconViewCellInfo *info, GdkEvent *event) { GtkTreePath *path; gchar *path_string; GdkRectangle cell_area; gboolean visible, mode; GtkCellEditable *editable; gtk_icon_view_set_cell_data (icon_view, item); g_object_get (info->cell, "visible", &visible, "mode", &mode, NULL); if (visible && mode == GTK_CELL_RENDERER_MODE_EDITABLE) { gtk_icon_view_get_cell_area (icon_view, item, info, &cell_area); path = gtk_tree_path_new_from_indices (item->index, -1); path_string = gtk_tree_path_to_string (path); gtk_tree_path_free (path); editable = gtk_cell_renderer_start_editing (info->cell, event, GTK_WIDGET (icon_view), path_string, &cell_area, &cell_area, 0); g_free (path_string); /* FIXME ugly special case */ if (GTK_IS_ENTRY (editable) || GTK_IS_COMBO_BOX (editable)) g_object_set (editable, "has-frame", TRUE, NULL); /* the rest corresponds to tree_view_real_start_editing... */ icon_view->priv->edited_item = item; icon_view->priv->editable = editable; info->editing = TRUE; gtk_icon_view_put (icon_view, GTK_WIDGET (editable), item, info->position); gtk_cell_editable_start_editing (GTK_CELL_EDITABLE (editable), (GdkEvent *)event); gtk_widget_grab_focus (GTK_WIDGET (editable)); g_signal_connect (editable, "remove_widget", G_CALLBACK (gtk_icon_view_remove_widget), icon_view); } } static void gtk_icon_view_stop_editing (GtkIconView *icon_view, gboolean cancel_editing) { GtkCellRenderer *cell = NULL; GtkIconViewItem *item; GList *l; if (icon_view->priv->edited_item == NULL) return; /* * This is very evil. We need to do this, because * gtk_cell_editable_editing_done may trigger gtk_icon_view_row_changed * later on. If gtk_icon_view_row_changed notices * icon_view->priv->edited_item != NULL, it'll call * gtk_icon_view_stop_editing again. Bad things will happen then. * * Please read that again if you intend to modify anything here. */ item = icon_view->priv->edited_item; icon_view->priv->edited_item = NULL; for (l = icon_view->priv->cell_list; l; l = l->next) { GtkIconViewCellInfo *info = l->data; if (info->editing) { cell = info->cell; break; } } if (cell == NULL) return; gtk_cell_renderer_stop_editing (cell, cancel_editing); if (!cancel_editing) gtk_cell_editable_editing_done (icon_view->priv->editable); icon_view->priv->edited_item = item; gtk_cell_editable_remove_widget (icon_view->priv->editable); } /** * gtk_icon_view_set_cursor: * @icon_view: A #GtkIconView * @path: A #GtkTreePath * @cell: One of the cell renderers of @icon_view, 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 item. * If @cell is not %NULL, then focus is given to the cell specified by * it. Additionally, if @start_editing is %TRUE, then editing should be * started in the specified cell. * * This function is often followed by gtk_widget_grab_focus * (icon_view) in order to give keyboard focus to the widget. * Please note that editing can only happen when the widget is realized. * * Since: 2.8 **/ void gtk_icon_view_set_cursor (GtkIconView *icon_view, GtkTreePath *path, GtkCellRenderer *cell, gboolean start_editing) { GtkIconViewItem *item = NULL; GtkIconViewCellInfo *info = NULL; GList *l; gint i, cell_pos; g_return_if_fail (GTK_IS_ICON_VIEW (icon_view)); g_return_if_fail (path != NULL); g_return_if_fail (cell == NULL || GTK_IS_CELL_RENDERER (cell)); gtk_icon_view_stop_editing (icon_view, TRUE); if (gtk_tree_path_get_depth (path) == 1) item = g_list_nth_data (icon_view->priv->items, gtk_tree_path_get_indices(path)[0]); if (!item) return; cell_pos = -1; for (l = icon_view->priv->cell_list, i = 0; l; l = l->next, i++) { info = l->data; if (info->cell == cell) { cell_pos = i; break; } info = NULL; } g_return_if_fail (cell == NULL || info != NULL); gtk_icon_view_set_cursor_item (icon_view, item, cell_pos); gtk_icon_view_scroll_to_path (icon_view, path, FALSE, 0.0, 0.0); if (info && start_editing) gtk_icon_view_start_editing (icon_view, item, info, NULL); } /** * gtk_icon_view_get_cursor: * @icon_view: A #GtkIconView * @path: Return location for the current cursor path, or %NULL * @cell: Return location the current focus cell, or %NULL * * Fills in @path and @cell with the current cursor path and cell. * If the cursor isn't currently set, then *@path will be %NULL. * If no cell currently has focus, then *@cell will be %NULL. * * The returned #GtkTreePath must be freed with gtk_tree_path_free(). * * Return value: %TRUE if the cursor is set. * * Since: 2.8 **/ gboolean gtk_icon_view_get_cursor (GtkIconView *icon_view, GtkTreePath **path, GtkCellRenderer **cell) { GtkIconViewItem *item; GtkIconViewCellInfo *info; g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), FALSE); item = icon_view->priv->cursor_item; if (icon_view->priv->cursor_cell < 0) info = NULL; else info = g_list_nth_data (icon_view->priv->cell_list, icon_view->priv->cursor_cell); if (path != NULL) { if (item != NULL) *path = gtk_tree_path_new_from_indices (item->index, -1); else *path = NULL; } if (cell != NULL) { if (info != NULL) *cell = info->cell; else *cell = NULL; } return (item != NULL); } static gboolean gtk_icon_view_button_press (GtkWidget *widget, GdkEventButton *event) { GtkIconView *icon_view; GtkIconViewItem *item; GtkIconViewCellInfo *info = NULL; gboolean dirty = FALSE; GtkCellRendererMode mode; gint cursor_cell; icon_view = GTK_ICON_VIEW (widget); if (event->window != icon_view->priv->bin_window) return FALSE; if (!GTK_WIDGET_HAS_FOCUS (widget)) gtk_widget_grab_focus (widget); if (event->button == 1 && event->type == GDK_BUTTON_PRESS) { item = gtk_icon_view_get_item_at_coords (icon_view, event->x, event->y, TRUE, &info); if (item != NULL) { g_object_get (info->cell, "mode", &mode, NULL); if (mode == GTK_CELL_RENDERER_MODE_ACTIVATABLE || mode == GTK_CELL_RENDERER_MODE_EDITABLE) cursor_cell = g_list_index (icon_view->priv->cell_list, info); else cursor_cell = -1; gtk_icon_view_scroll_to_item (icon_view, item); if (icon_view->priv->selection_mode == GTK_SELECTION_NONE) { gtk_icon_view_set_cursor_item (icon_view, item, cursor_cell); } else if (icon_view->priv->selection_mode == GTK_SELECTION_MULTIPLE && (event->state & GDK_SHIFT_MASK)) { gtk_icon_view_unselect_all_internal (icon_view); gtk_icon_view_set_cursor_item (icon_view, item, cursor_cell); if (!icon_view->priv->anchor_item) icon_view->priv->anchor_item = item; else gtk_icon_view_select_all_between (icon_view, icon_view->priv->anchor_item, item); dirty = TRUE; } else { if ((icon_view->priv->selection_mode == GTK_SELECTION_MULTIPLE || ((icon_view->priv->selection_mode == GTK_SELECTION_SINGLE) && item->selected)) && (event->state & GDK_CONTROL_MASK)) { item->selected = !item->selected; gtk_icon_view_queue_draw_item (icon_view, item); dirty = TRUE; } else { if (!item->selected) { gtk_icon_view_unselect_all_internal (icon_view); item->selected = TRUE; gtk_icon_view_queue_draw_item (icon_view, item); dirty = TRUE; } } gtk_icon_view_set_cursor_item (icon_view, item, cursor_cell); icon_view->priv->anchor_item = item; } /* Save press to possibly begin a drag */ if (icon_view->priv->pressed_button < 0) { icon_view->priv->pressed_button = event->button; icon_view->priv->press_start_x = event->x; icon_view->priv->press_start_y = event->y; } if (!icon_view->priv->last_single_clicked) icon_view->priv->last_single_clicked = item; /* cancel the current editing, if it exists */ gtk_icon_view_stop_editing (icon_view, TRUE); if (mode == GTK_CELL_RENDERER_MODE_ACTIVATABLE) gtk_icon_view_item_activate_cell (icon_view, item, info, (GdkEvent *)event); else if (mode == GTK_CELL_RENDERER_MODE_EDITABLE) gtk_icon_view_start_editing (icon_view, item, info, (GdkEvent *)event); } else { if (icon_view->priv->selection_mode != GTK_SELECTION_BROWSE && !(event->state & GDK_CONTROL_MASK)) { dirty = gtk_icon_view_unselect_all_internal (icon_view); } if (icon_view->priv->selection_mode == GTK_SELECTION_MULTIPLE) gtk_icon_view_start_rubberbanding (icon_view, event->x, event->y); } } if (event->button == 1 && event->type == GDK_2BUTTON_PRESS) { item = gtk_icon_view_get_item_at_coords (icon_view, event->x, event->y, TRUE, NULL); if (item && item == icon_view->priv->last_single_clicked) { GtkTreePath *path; path = gtk_tree_path_new_from_indices (item->index, -1); gtk_icon_view_item_activated (icon_view, path); gtk_tree_path_free (path); } icon_view->priv->last_single_clicked = NULL; icon_view->priv->pressed_button = -1; } if (dirty) g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0); return event->button == 1; } static gboolean gtk_icon_view_button_release (GtkWidget *widget, GdkEventButton *event) { GtkIconView *icon_view; icon_view = GTK_ICON_VIEW (widget); if (icon_view->priv->pressed_button == event->button) icon_view->priv->pressed_button = -1; gtk_icon_view_stop_rubberbanding (icon_view); remove_scroll_timeout (icon_view); return TRUE; } static void gtk_icon_view_update_rubberband (gpointer data) { GtkIconView *icon_view; gint x, y; GdkRectangle old_area; GdkRectangle new_area; GdkRectangle common; GdkRegion *invalid_region; icon_view = GTK_ICON_VIEW (data); gdk_window_get_pointer (icon_view->priv->bin_window, &x, &y, NULL); x = MAX (x, 0); y = MAX (y, 0); old_area.x = MIN (icon_view->priv->rubberband_x1, icon_view->priv->rubberband_x2); old_area.y = MIN (icon_view->priv->rubberband_y1, icon_view->priv->rubberband_y2); old_area.width = ABS (icon_view->priv->rubberband_x2 - icon_view->priv->rubberband_x1) + 1; old_area.height = ABS (icon_view->priv->rubberband_y2 - icon_view->priv->rubberband_y1) + 1; new_area.x = MIN (icon_view->priv->rubberband_x1, x); new_area.y = MIN (icon_view->priv->rubberband_y1, y); new_area.width = ABS (x - icon_view->priv->rubberband_x1) + 1; new_area.height = ABS (y - icon_view->priv->rubberband_y1) + 1; invalid_region = gdk_region_rectangle (&old_area); gdk_region_union_with_rect (invalid_region, &new_area); gdk_rectangle_intersect (&old_area, &new_area, &common); if (common.width > 2 && common.height > 2) { GdkRegion *common_region; /* make sure the border is invalidated */ common.x += 1; common.y += 1; common.width -= 2; common.height -= 2; common_region = gdk_region_rectangle (&common); gdk_region_subtract (invalid_region, common_region); gdk_region_destroy (common_region); } gdk_window_invalidate_region (icon_view->priv->bin_window, invalid_region, TRUE); gdk_region_destroy (invalid_region); icon_view->priv->rubberband_x2 = x; icon_view->priv->rubberband_y2 = y; gtk_icon_view_update_rubberband_selection (icon_view); } static void gtk_icon_view_start_rubberbanding (GtkIconView *icon_view, gint x, gint y) { GList *items; g_assert (!icon_view->priv->doing_rubberband); for (items = icon_view->priv->items; items; items = items->next) { GtkIconViewItem *item = items->data; item->selected_before_rubberbanding = item->selected; } icon_view->priv->rubberband_x1 = x; icon_view->priv->rubberband_y1 = y; icon_view->priv->rubberband_x2 = x; icon_view->priv->rubberband_y2 = y; icon_view->priv->doing_rubberband = TRUE; gtk_grab_add (GTK_WIDGET (icon_view)); } static void gtk_icon_view_stop_rubberbanding (GtkIconView *icon_view) { if (!icon_view->priv->doing_rubberband) return; icon_view->priv->doing_rubberband = FALSE; gtk_grab_remove (GTK_WIDGET (icon_view)); gtk_widget_queue_draw (GTK_WIDGET (icon_view)); } static void gtk_icon_view_update_rubberband_selection (GtkIconView *icon_view) { GList *items; gint x, y, width, height; gboolean dirty = FALSE; x = MIN (icon_view->priv->rubberband_x1, icon_view->priv->rubberband_x2); y = MIN (icon_view->priv->rubberband_y1, icon_view->priv->rubberband_y2); width = ABS (icon_view->priv->rubberband_x1 - icon_view->priv->rubberband_x2); height = ABS (icon_view->priv->rubberband_y1 - icon_view->priv->rubberband_y2); for (items = icon_view->priv->items; items; items = items->next) { GtkIconViewItem *item = items->data; gboolean is_in; gboolean selected; is_in = gtk_icon_view_item_hit_test (icon_view, item, x, y, width, height); selected = is_in ^ item->selected_before_rubberbanding; if (item->selected != selected) { item->selected = selected; dirty = TRUE; gtk_icon_view_queue_draw_item (icon_view, item); } } if (dirty) g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0); } static gboolean gtk_icon_view_item_hit_test (GtkIconView *icon_view, GtkIconViewItem *item, gint x, gint y, gint width, gint height) { GList *l; GdkRectangle box; for (l = icon_view->priv->cell_list; l; l = l->next) { GtkIconViewCellInfo *info = (GtkIconViewCellInfo *)l->data; if (!info->cell->visible) continue; gtk_icon_view_get_cell_box (icon_view, item, info, &box); if (MIN (x + width, box.x + box.width) - MAX (x, box.x) > 0 && MIN (y + height, box.y + box.height) - MAX (y, box.y) > 0) return TRUE; } return FALSE; } static gboolean gtk_icon_view_unselect_all_internal (GtkIconView *icon_view) { gboolean dirty = FALSE; GList *items; if (icon_view->priv->selection_mode == GTK_SELECTION_NONE) return FALSE; for (items = icon_view->priv->items; items; items = items->next) { GtkIconViewItem *item = items->data; if (item->selected) { item->selected = FALSE; dirty = TRUE; gtk_icon_view_queue_draw_item (icon_view, item); } } return dirty; } /* GtkIconView signals */ static void gtk_icon_view_set_adjustments (GtkIconView *icon_view, GtkAdjustment *hadj, GtkAdjustment *vadj) { gboolean need_adjust = FALSE; if (hadj) g_return_if_fail (GTK_IS_ADJUSTMENT (hadj)); else hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0)); if (vadj) g_return_if_fail (GTK_IS_ADJUSTMENT (vadj)); else vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0)); if (icon_view->priv->hadjustment && (icon_view->priv->hadjustment != hadj)) { g_signal_handlers_disconnect_matched (icon_view->priv->hadjustment, G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, icon_view); g_object_unref (icon_view->priv->hadjustment); } if (icon_view->priv->vadjustment && (icon_view->priv->vadjustment != vadj)) { g_signal_handlers_disconnect_matched (icon_view->priv->vadjustment, G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, icon_view); g_object_unref (icon_view->priv->vadjustment); } if (icon_view->priv->hadjustment != hadj) { icon_view->priv->hadjustment = hadj; g_object_ref_sink (icon_view->priv->hadjustment); g_signal_connect (icon_view->priv->hadjustment, "value_changed", G_CALLBACK (gtk_icon_view_adjustment_changed), icon_view); need_adjust = TRUE; } if (icon_view->priv->vadjustment != vadj) { icon_view->priv->vadjustment = vadj; g_object_ref_sink (icon_view->priv->vadjustment); g_signal_connect (icon_view->priv->vadjustment, "value_changed", G_CALLBACK (gtk_icon_view_adjustment_changed), icon_view); need_adjust = TRUE; } if (need_adjust) gtk_icon_view_adjustment_changed (NULL, icon_view); } static void gtk_icon_view_real_select_all (GtkIconView *icon_view) { gtk_icon_view_select_all (icon_view); } static void gtk_icon_view_real_unselect_all (GtkIconView *icon_view) { gtk_icon_view_unselect_all (icon_view); } static void gtk_icon_view_real_select_cursor_item (GtkIconView *icon_view) { gtk_icon_view_unselect_all (icon_view); if (icon_view->priv->cursor_item != NULL) gtk_icon_view_select_item (icon_view, icon_view->priv->cursor_item); } static gboolean gtk_icon_view_real_activate_cursor_item (GtkIconView *icon_view) { GtkTreePath *path; GtkCellRendererMode mode; GtkIconViewCellInfo *info = NULL; if (!icon_view->priv->cursor_item) return FALSE; info = g_list_nth_data (icon_view->priv->cell_list, icon_view->priv->cursor_cell); if (info) { g_object_get (info->cell, "mode", &mode, NULL); if (mode == GTK_CELL_RENDERER_MODE_ACTIVATABLE) { gtk_icon_view_item_activate_cell (icon_view, icon_view->priv->cursor_item, info, NULL); return TRUE; } else if (mode == GTK_CELL_RENDERER_MODE_EDITABLE) { gtk_icon_view_start_editing (icon_view, icon_view->priv->cursor_item, info, NULL); return TRUE; } } path = gtk_tree_path_new_from_indices (icon_view->priv->cursor_item->index, -1); gtk_icon_view_item_activated (icon_view, path); gtk_tree_path_free (path); return TRUE; } static void gtk_icon_view_real_toggle_cursor_item (GtkIconView *icon_view) { if (!icon_view->priv->cursor_item) return; switch (icon_view->priv->selection_mode) { case GTK_SELECTION_NONE: break; case GTK_SELECTION_BROWSE: gtk_icon_view_select_item (icon_view, icon_view->priv->cursor_item); break; case GTK_SELECTION_SINGLE: if (icon_view->priv->cursor_item->selected) gtk_icon_view_unselect_item (icon_view, icon_view->priv->cursor_item); else gtk_icon_view_select_item (icon_view, icon_view->priv->cursor_item); break; case GTK_SELECTION_MULTIPLE: icon_view->priv->cursor_item->selected = !icon_view->priv->cursor_item->selected; g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0); gtk_icon_view_queue_draw_item (icon_view, icon_view->priv->cursor_item); break; } } /* Internal functions */ static void gtk_icon_view_adjustment_changed (GtkAdjustment *adjustment, GtkIconView *icon_view) { if (GTK_WIDGET_REALIZED (icon_view)) { gdk_window_move (icon_view->priv->bin_window, - icon_view->priv->hadjustment->value, - icon_view->priv->vadjustment->value); if (icon_view->priv->doing_rubberband) gtk_icon_view_update_rubberband (GTK_WIDGET (icon_view)); gdk_window_process_updates (icon_view->priv->bin_window, TRUE); } } static GList * gtk_icon_view_layout_single_row (GtkIconView *icon_view, GList *first_item, gint item_width, gint row, gint *y, gint *maximum_width) { gint focus_width; gint x, current_width; GList *items, *last_item; gint col; gint colspan; gint *max_height; gint i; gboolean rtl; rtl = gtk_widget_get_direction (GTK_WIDGET (icon_view)) == GTK_TEXT_DIR_RTL; max_height = g_new0 (gint, icon_view->priv->n_cells); x = 0; col = 0; items = first_item; current_width = 0; gtk_widget_style_get (GTK_WIDGET (icon_view), "focus-line-width", &focus_width, NULL); x += icon_view->priv->margin + focus_width; current_width += 2 * (icon_view->priv->margin + focus_width); items = first_item; while (items) { GtkIconViewItem *item = items->data; gtk_icon_view_calculate_item_size (icon_view, item); colspan = 1 + (item->width - 1) / (item_width + icon_view->priv->column_spacing); item->width = colspan * item_width + (colspan - 1) * icon_view->priv->column_spacing; current_width += item->width; if (items != first_item) { if ((icon_view->priv->columns <= 0 && current_width > GTK_WIDGET (icon_view)->allocation.width) || (icon_view->priv->columns > 0 && col >= icon_view->priv->columns)) break; } current_width += icon_view->priv->column_spacing + 2 * focus_width; item->y = *y + focus_width; item->x = rtl ? GTK_WIDGET (icon_view)->allocation.width - item->width - x : x; x = current_width - (icon_view->priv->margin + focus_width); for (i = 0; i < icon_view->priv->n_cells; i++) max_height[i] = MAX (max_height[i], item->box[i].height); if (current_width > *maximum_width) *maximum_width = current_width; item->row = row; item->col = col; col += colspan; items = items->next; } last_item = items; /* Now go through the row again and align the icons */ for (items = first_item; items != last_item; items = items->next) { GtkIconViewItem *item = items->data; gtk_icon_view_calculate_item_size2 (icon_view, item, max_height); /* We may want to readjust the new y coordinate. */ if (item->y + item->height + focus_width + icon_view->priv->row_spacing > *y) *y = item->y + item->height + focus_width + icon_view->priv->row_spacing; if (rtl) item->col = col - 1 - item->col; } g_free (max_height); return last_item; } static void gtk_icon_view_set_adjustment_upper (GtkAdjustment *adj, gdouble upper) { if (upper != adj->upper) { gdouble min = MAX (0.0, upper - adj->page_size); gboolean value_changed = FALSE; adj->upper = upper; if (adj->value > min) { adj->value = min; value_changed = TRUE; } gtk_adjustment_changed (adj); if (value_changed) gtk_adjustment_value_changed (adj); } } static void gtk_icon_view_layout (GtkIconView *icon_view) { gint y = 0, maximum_width = 0; GList *icons; GtkWidget *widget; gint row; gint item_width; if (icon_view->priv->layout_idle_id != 0) { g_source_remove (icon_view->priv->layout_idle_id); icon_view->priv->layout_idle_id = 0; } if (icon_view->priv->model == NULL) return; widget = GTK_WIDGET (icon_view); item_width = icon_view->priv->item_width; if (item_width < 0) { for (icons = icon_view->priv->items; icons; icons = icons->next) { GtkIconViewItem *item = icons->data; gtk_icon_view_calculate_item_size (icon_view, item); item_width = MAX (item_width, item->width); } } icons = icon_view->priv->items; y += icon_view->priv->margin; row = 0; do { icons = gtk_icon_view_layout_single_row (icon_view, icons, item_width, row, &y, &maximum_width); row++; } while (icons != NULL); if (maximum_width != icon_view->priv->width) icon_view->priv->width = maximum_width; y += icon_view->priv->margin; if (y != icon_view->priv->height) icon_view->priv->height = y; gtk_icon_view_set_adjustment_upper (icon_view->priv->hadjustment, icon_view->priv->width); gtk_icon_view_set_adjustment_upper (icon_view->priv->vadjustment, icon_view->priv->height); if (GTK_WIDGET_REALIZED (icon_view)) gdk_window_resize (icon_view->priv->bin_window, MAX (icon_view->priv->width, widget->allocation.width), MAX (icon_view->priv->height, widget->allocation.height)); if (icon_view->priv->scroll_to_path) { GtkTreePath *path; path = gtk_tree_row_reference_get_path (icon_view->priv->scroll_to_path); gtk_tree_row_reference_free (icon_view->priv->scroll_to_path); icon_view->priv->scroll_to_path = NULL; gtk_icon_view_scroll_to_path (icon_view, path, icon_view->priv->scroll_to_use_align, icon_view->priv->scroll_to_row_align, icon_view->priv->scroll_to_col_align); gtk_tree_path_free (path); } gtk_widget_queue_draw (GTK_WIDGET (icon_view)); } static void gtk_icon_view_get_cell_area (GtkIconView *icon_view, GtkIconViewItem *item, GtkIconViewCellInfo *info, GdkRectangle *cell_area) { if (icon_view->priv->orientation == GTK_ORIENTATION_HORIZONTAL) { cell_area->x = item->box[info->position].x - item->before[info->position]; cell_area->y = item->y; cell_area->width = item->box[info->position].width + item->before[info->position] + item->after[info->position]; cell_area->height = item->height; } else { cell_area->x = item->x; cell_area->y = item->box[info->position].y - item->before[info->position]; cell_area->width = item->width; cell_area->height = item->box[info->position].height + item->before[info->position] + item->after[info->position]; } } static void gtk_icon_view_get_cell_box (GtkIconView *icon_view, GtkIconViewItem *item, GtkIconViewCellInfo *info, GdkRectangle *box) { *box = item->box[info->position]; } /* try to guess a reasonable wrap width for an implicit text cell renderer */ static void adjust_wrap_width (GtkIconView *icon_view, GtkIconViewItem *item) { GtkIconViewCellInfo *text_info; GtkIconViewCellInfo *pixbuf_info; gint pixbuf_width, wrap_width; if (icon_view->priv->text_cell != -1 && icon_view->priv->pixbuf_cell != -1) { text_info = g_list_nth_data (icon_view->priv->cell_list, icon_view->priv->text_cell); pixbuf_info = g_list_nth_data (icon_view->priv->cell_list, icon_view->priv->pixbuf_cell); gtk_cell_renderer_get_size (pixbuf_info->cell, GTK_WIDGET (icon_view), NULL, NULL, NULL, &pixbuf_width, NULL); if (item->width == -1) wrap_width = MAX (2 * pixbuf_width, 50); else if (icon_view->priv->orientation == GTK_ORIENTATION_VERTICAL) wrap_width = item->width; else wrap_width = item->width - pixbuf_width - icon_view->priv->spacing; g_object_set (text_info->cell, "wrap-width", wrap_width, NULL); g_object_set (text_info->cell, "width", wrap_width, NULL); } } static void gtk_icon_view_calculate_item_size (GtkIconView *icon_view, GtkIconViewItem *item) { gint spacing; GList *l; if (item->width != -1 && item->height != -1) return; if (item->n_cells != icon_view->priv->n_cells) { g_free (item->before); g_free (item->after); g_free (item->box); item->before = g_new0 (gint, icon_view->priv->n_cells); item->after = g_new0 (gint, icon_view->priv->n_cells); item->box = g_new0 (GdkRectangle, icon_view->priv->n_cells); item->n_cells = icon_view->priv->n_cells; } gtk_icon_view_set_cell_data (icon_view, item); spacing = icon_view->priv->spacing; item->width = 0; item->height = 0; for (l = icon_view->priv->cell_list; l; l = l->next) { GtkIconViewCellInfo *info = (GtkIconViewCellInfo *)l->data; if (!info->cell->visible) continue; gtk_cell_renderer_get_size (info->cell, GTK_WIDGET (icon_view), NULL, NULL, NULL, &item->box[info->position].width, &item->box[info->position].height); if (icon_view->priv->orientation == GTK_ORIENTATION_HORIZONTAL) { item->width += item->box[info->position].width + (info->position > 0 ? spacing : 0); item->height = MAX (item->height, item->box[info->position].height); } else { item->width = MAX (item->width, item->box[info->position].width); item->height += item->box[info->position].height + (info->position > 0 ? spacing : 0); } } } static void gtk_icon_view_calculate_item_size2 (GtkIconView *icon_view, GtkIconViewItem *item, gint *max_height) { GdkRectangle cell_area; gint spacing; GList *l; gint i, k; gboolean rtl; rtl = gtk_widget_get_direction (GTK_WIDGET (icon_view)) == GTK_TEXT_DIR_RTL; gtk_icon_view_set_cell_data (icon_view, item); spacing = icon_view->priv->spacing; item->height = 0; for (i = 0; i < icon_view->priv->n_cells; i++) { if (icon_view->priv->orientation == GTK_ORIENTATION_HORIZONTAL) item->height = MAX (item->height, max_height[i]); else item->height += max_height[i] + (i > 0 ? spacing : 0); } cell_area.x = item->x; cell_area.y = item->y; for (k = 0; k < 2; k++) for (l = icon_view->priv->cell_list, i = 0; l; l = l->next, i++) { GtkIconViewCellInfo *info = (GtkIconViewCellInfo *)l->data; if (info->pack == (k ? GTK_PACK_START : GTK_PACK_END)) continue; if (!info->cell->visible) continue; if (icon_view->priv->orientation == GTK_ORIENTATION_HORIZONTAL) { cell_area.width = item->box[info->position].width; cell_area.height = item->height; } else { cell_area.width = item->width; cell_area.height = max_height[i]; } gtk_cell_renderer_get_size (info->cell, GTK_WIDGET (icon_view), &cell_area, &item->box[info->position].x, &item->box[info->position].y, &item->box[info->position].width, &item->box[info->position].height); item->box[info->position].x += cell_area.x; item->box[info->position].y += cell_area.y; if (icon_view->priv->orientation == GTK_ORIENTATION_HORIZONTAL) { item->before[info->position] = item->box[info->position].x - cell_area.x; item->after[info->position] = cell_area.width - item->box[info->position].width - item->before[info->position]; cell_area.x += cell_area.width + spacing; } else { if (item->box[info->position].width > item->width) { item->width = item->box[info->position].width; cell_area.width = item->width; } item->before[info->position] = item->box[info->position].y - cell_area.y; item->after[info->position] = cell_area.height - item->box[info->position].height - item->before[info->position]; cell_area.y += cell_area.height + spacing; } } if (rtl && icon_view->priv->orientation == GTK_ORIENTATION_HORIZONTAL) { for (i = 0; i < icon_view->priv->n_cells; i++) { item->box[i].x = item->x + item->width - (item->box[i].x + item->box[i].width - item->x); } } } static void gtk_icon_view_invalidate_sizes (GtkIconView *icon_view) { g_list_foreach (icon_view->priv->items, (GFunc)gtk_icon_view_item_invalidate_size, NULL); } static void gtk_icon_view_item_invalidate_size (GtkIconViewItem *item) { item->width = -1; item->height = -1; } static void gtk_icon_view_paint_item (GtkIconView *icon_view, cairo_t *cr, GtkIconViewItem *item, GdkRectangle *area, GdkDrawable *drawable, gint x, gint y, gboolean draw_focus) { gint focus_width, focus_pad; gint padding; GdkRectangle cell_area, box; GList *l; gint i; GtkStateType state; GtkCellRendererState flags; if (icon_view->priv->model == NULL) return; gtk_icon_view_set_cell_data (icon_view, item); gtk_widget_style_get (GTK_WIDGET (icon_view), "focus-line-width", &focus_width, "focus-padding", &focus_pad, NULL); padding = focus_width; if (item->selected) { flags = GTK_CELL_RENDERER_SELECTED; if (GTK_WIDGET_HAS_FOCUS (icon_view)) state = GTK_STATE_SELECTED; else state = GTK_STATE_ACTIVE; } else { flags = 0; state = GTK_STATE_NORMAL; } #ifdef DEBUG_ICON_VIEW gdk_draw_rectangle (drawable, GTK_WIDGET (icon_view)->style->black_gc, FALSE, x, y, item->width, item->height); #endif if (item->selected) for (l = icon_view->priv->cell_list; l; l = l->next) { GtkIconViewCellInfo *info = (GtkIconViewCellInfo *)l->data; if (!info->cell->visible) continue; gtk_icon_view_get_cell_box (icon_view, item, info, &box); /* FIXME we hardwire background drawing behind text * cell renderers here */ if (GTK_IS_CELL_RENDERER_TEXT (info->cell)) { gdk_cairo_set_source_color (cr, >K_WIDGET (icon_view)->style->base[state]); cairo_rectangle (cr, x - item->x + box.x, y - item->y + box.y, box.width, box.height); cairo_fill (cr); } } for (l = icon_view->priv->cell_list; l; l = l->next) { GtkIconViewCellInfo *info = (GtkIconViewCellInfo *)l->data; if (!info->cell->visible) continue; gtk_icon_view_get_cell_area (icon_view, item, info, &cell_area); #ifdef DEBUG_ICON_VIEW gdk_draw_rectangle (drawable, GTK_WIDGET (icon_view)->style->black_gc, FALSE, x - item->x + cell_area.x, y - item->y + cell_area.y, cell_area.width, cell_area.height); gtk_icon_view_get_cell_box (icon_view, item, info, &box); gdk_draw_rectangle (drawable, GTK_WIDGET (icon_view)->style->black_gc, FALSE, x - item->x + box.x, y - item->y + box.y, box.width, box.height); #endif cell_area.x = x - item->x + cell_area.x; cell_area.y = y - item->y + cell_area.y; gtk_cell_renderer_render (info->cell, drawable, GTK_WIDGET (icon_view), &cell_area, &cell_area, area, flags); } /* FIXME where to draw the focus with generic cell renderers ? */ if (draw_focus && GTK_WIDGET_HAS_FOCUS (icon_view) && item == icon_view->priv->cursor_item) for (l = icon_view->priv->cell_list, i = 0; l; l = l->next, i++) { GtkIconViewCellInfo *info = (GtkIconViewCellInfo *)l->data; if (!info->cell->visible) continue; if (icon_view->priv->cursor_cell < 0 && (info->cell->mode != GTK_CELL_RENDERER_MODE_INERT || GTK_IS_CELL_RENDERER_TEXT (info->cell))) icon_view->priv->cursor_cell = i; if (i == icon_view->priv->cursor_cell) { gtk_icon_view_get_cell_box (icon_view, item, info, &box); gtk_paint_focus (GTK_WIDGET (icon_view)->style, drawable, GTK_STATE_NORMAL, area, GTK_WIDGET (icon_view), "icon_view", x - item->x + box.x - padding, y - item->y + box.y - padding, box.width + 2 * padding, box.height + 2 * padding); break; } } } static void gtk_icon_view_paint_rubberband (GtkIconView *icon_view, cairo_t *cr, GdkRectangle *area) { GdkRectangle rect; GdkRectangle rubber_rect; GdkColor *fill_color_gdk; guchar fill_color_alpha; rubber_rect.x = MIN (icon_view->priv->rubberband_x1, icon_view->priv->rubberband_x2); rubber_rect.y = MIN (icon_view->priv->rubberband_y1, icon_view->priv->rubberband_y2); rubber_rect.width = ABS (icon_view->priv->rubberband_x1 - icon_view->priv->rubberband_x2) + 1; rubber_rect.height = ABS (icon_view->priv->rubberband_y1 - icon_view->priv->rubberband_y2) + 1; if (!gdk_rectangle_intersect (&rubber_rect, area, &rect)) return; gtk_widget_style_get (GTK_WIDGET (icon_view), "selection-box-color", &fill_color_gdk, "selection-box-alpha", &fill_color_alpha, NULL); if (!fill_color_gdk) fill_color_gdk = gdk_color_copy (>K_WIDGET (icon_view)->style->base[GTK_STATE_SELECTED]); cairo_set_source_rgba (cr, fill_color_gdk->red / 65535., fill_color_gdk->green / 65535., fill_color_gdk->blue / 65535., fill_color_alpha / 255.); cairo_save (cr); gdk_cairo_rectangle (cr, &rect); cairo_clip (cr); cairo_paint (cr); /* Draw the border without alpha */ cairo_set_source_rgb (cr, fill_color_gdk->red / 65535., fill_color_gdk->green / 65535., fill_color_gdk->blue / 65535.); cairo_rectangle (cr, rubber_rect.x + 0.5, rubber_rect.y + 0.5, rubber_rect.width - 1, rubber_rect.height - 1); cairo_stroke (cr); cairo_restore (cr); gdk_color_free (fill_color_gdk); } static void gtk_icon_view_queue_draw_path (GtkIconView *icon_view, GtkTreePath *path) { GList *l; gint index; index = gtk_tree_path_get_indices (path)[0]; for (l = icon_view->priv->items; l; l = l->next) { GtkIconViewItem *item = l->data; if (item->index == index) { gtk_icon_view_queue_draw_item (icon_view, item); break; } } } static void gtk_icon_view_queue_draw_item (GtkIconView *icon_view, GtkIconViewItem *item) { gint focus_width; GdkRectangle rect; gtk_widget_style_get (GTK_WIDGET (icon_view), "focus-line-width", &focus_width, NULL); rect.x = item->x - focus_width; rect.y = item->y - focus_width; rect.width = item->width + 2 * focus_width; rect.height = item->height + 2 * focus_width; if (icon_view->priv->bin_window) gdk_window_invalidate_rect (icon_view->priv->bin_window, &rect, TRUE); } static gboolean layout_callback (gpointer user_data) { GtkIconView *icon_view; icon_view = GTK_ICON_VIEW (user_data); icon_view->priv->layout_idle_id = 0; gtk_icon_view_layout (icon_view); return FALSE; } static void gtk_icon_view_queue_layout (GtkIconView *icon_view) { if (icon_view->priv->layout_idle_id != 0) return; icon_view->priv->layout_idle_id = gdk_threads_add_idle (layout_callback, icon_view); } static void gtk_icon_view_set_cursor_item (GtkIconView *icon_view, GtkIconViewItem *item, gint cursor_cell) { AtkObject *obj; AtkObject *item_obj; if (icon_view->priv->cursor_item == item && (cursor_cell < 0 || cursor_cell == icon_view->priv->cursor_cell)) return; if (icon_view->priv->cursor_item != NULL) gtk_icon_view_queue_draw_item (icon_view, icon_view->priv->cursor_item); icon_view->priv->cursor_item = item; if (cursor_cell >= 0) icon_view->priv->cursor_cell = cursor_cell; gtk_icon_view_queue_draw_item (icon_view, item); /* Notify that accessible focus object has changed */ obj = gtk_widget_get_accessible (GTK_WIDGET (icon_view)); item_obj = atk_object_ref_accessible_child (obj, item->index); if (item_obj != NULL) { atk_focus_tracker_notify (item_obj); g_object_unref (item_obj); } } static GtkIconViewItem * gtk_icon_view_item_new (void) { GtkIconViewItem *item; item = g_new0 (GtkIconViewItem, 1); item->width = -1; item->height = -1; return item; } static void gtk_icon_view_item_free (GtkIconViewItem *item) { g_return_if_fail (item != NULL); g_free (item->before); g_free (item->after); g_free (item->box); g_free (item); } static GtkIconViewItem * gtk_icon_view_get_item_at_coords (GtkIconView *icon_view, gint x, gint y, gboolean only_in_cell, GtkIconViewCellInfo **cell_at_pos) { GList *items, *l; GdkRectangle box; for (items = icon_view->priv->items; items; items = items->next) { GtkIconViewItem *item = items->data; if (x >= item->x - icon_view->priv->column_spacing/2 && x <= item->x + item->width + icon_view->priv->column_spacing/2 && y >= item->y - icon_view->priv->row_spacing/2 && y <= item->y + item->height + icon_view->priv->row_spacing/2) { if (only_in_cell || cell_at_pos) { gtk_icon_view_set_cell_data (icon_view, item); for (l = icon_view->priv->cell_list; l; l = l->next) { GtkIconViewCellInfo *info = (GtkIconViewCellInfo *)l->data; if (!info->cell->visible) continue; gtk_icon_view_get_cell_box (icon_view, item, info, &box); if ((x >= box.x && x <= box.x + box.width && y >= box.y && y <= box.y + box.height) || (x >= box.x && x <= box.x + box.width && y >= box.y && y <= box.y + box.height)) { if (cell_at_pos) *cell_at_pos = info; return item; } } if (only_in_cell) return NULL; if (cell_at_pos) *cell_at_pos = NULL; } return item; } } return NULL; } static void gtk_icon_view_select_item (GtkIconView *icon_view, GtkIconViewItem *item) { g_return_if_fail (GTK_IS_ICON_VIEW (icon_view)); g_return_if_fail (item != NULL); if (item->selected) return; if (icon_view->priv->selection_mode == GTK_SELECTION_NONE) return; else if (icon_view->priv->selection_mode != GTK_SELECTION_MULTIPLE) gtk_icon_view_unselect_all_internal (icon_view); item->selected = TRUE; gtk_icon_view_queue_draw_item (icon_view, item); g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0); } static void gtk_icon_view_unselect_item (GtkIconView *icon_view, GtkIconViewItem *item) { g_return_if_fail (GTK_IS_ICON_VIEW (icon_view)); g_return_if_fail (item != NULL); if (!item->selected) return; if (icon_view->priv->selection_mode == GTK_SELECTION_NONE || icon_view->priv->selection_mode == GTK_SELECTION_BROWSE) return; item->selected = FALSE; g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0); gtk_icon_view_queue_draw_item (icon_view, item); } static void verify_items (GtkIconView *icon_view) { GList *items; int i = 0; for (items = icon_view->priv->items; items; items = items->next) { GtkIconViewItem *item = items->data; if (item->index != i) g_error ("List item does not match its index: " "item index %d and list index %d\n", item->index, i); i++; } } static void gtk_icon_view_row_changed (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data) { GtkIconViewItem *item; gint index; GtkIconView *icon_view; icon_view = GTK_ICON_VIEW (data); gtk_icon_view_stop_editing (icon_view, TRUE); index = gtk_tree_path_get_indices(path)[0]; item = g_list_nth_data (icon_view->priv->items, index); gtk_icon_view_item_invalidate_size (item); gtk_icon_view_queue_layout (icon_view); verify_items (icon_view); } static void gtk_icon_view_row_inserted (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data) { gint index; GtkIconViewItem *item; gboolean iters_persist; GtkIconView *icon_view; GList *list; icon_view = GTK_ICON_VIEW (data); iters_persist = gtk_tree_model_get_flags (icon_view->priv->model) & GTK_TREE_MODEL_ITERS_PERSIST; index = gtk_tree_path_get_indices(path)[0]; item = gtk_icon_view_item_new (); if (iters_persist) item->iter = *iter; item->index = index; /* FIXME: We can be more efficient here, we can store a tail pointer and use that when appending (which is a rather common operation) */ icon_view->priv->items = g_list_insert (icon_view->priv->items, item, index); list = g_list_nth (icon_view->priv->items, index + 1); for (; list; list = list->next) { item = list->data; item->index++; } verify_items (icon_view); gtk_icon_view_queue_layout (icon_view); } static void gtk_icon_view_row_deleted (GtkTreeModel *model, GtkTreePath *path, gpointer data) { gint index; GtkIconView *icon_view; GtkIconViewItem *item; GList *list, *next; gboolean emit = FALSE; icon_view = GTK_ICON_VIEW (data); index = gtk_tree_path_get_indices(path)[0]; list = g_list_nth (icon_view->priv->items, index); item = list->data; gtk_icon_view_stop_editing (icon_view, TRUE); if (item == icon_view->priv->anchor_item) icon_view->priv->anchor_item = NULL; if (item == icon_view->priv->cursor_item) icon_view->priv->cursor_item = NULL; if (item->selected) emit = TRUE; gtk_icon_view_item_free (item); for (next = list->next; next; next = next->next) { item = next->data; item->index--; } icon_view->priv->items = g_list_delete_link (icon_view->priv->items, list); verify_items (icon_view); gtk_icon_view_queue_layout (icon_view); if (emit) g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0); } static void gtk_icon_view_rows_reordered (GtkTreeModel *model, GtkTreePath *parent, GtkTreeIter *iter, gint *new_order, gpointer data) { int i; int length; GtkIconView *icon_view; GList *items = NULL, *list; GtkIconViewItem **item_array; gint *order; icon_view = GTK_ICON_VIEW (data); gtk_icon_view_stop_editing (icon_view, TRUE); length = gtk_tree_model_iter_n_children (model, NULL); order = g_new (gint, length); for (i = 0; i < length; i++) order [new_order[i]] = i; item_array = g_new (GtkIconViewItem *, length); for (i = 0, list = icon_view->priv->items; list != NULL; list = list->next, i++) item_array[order[i]] = list->data; g_free (order); for (i = length - 1; i >= 0; i--) { item_array[i]->index = i; items = g_list_prepend (items, item_array[i]); } g_free (item_array); g_list_free (icon_view->priv->items); icon_view->priv->items = items; gtk_icon_view_queue_layout (icon_view); verify_items (icon_view); } static void gtk_icon_view_build_items (GtkIconView *icon_view) { GtkTreeIter iter; int i; gboolean iters_persist; GList *items = NULL; iters_persist = gtk_tree_model_get_flags (icon_view->priv->model) & GTK_TREE_MODEL_ITERS_PERSIST; if (!gtk_tree_model_get_iter_first (icon_view->priv->model, &iter)) return; i = 0; do { GtkIconViewItem *item = gtk_icon_view_item_new (); if (iters_persist) item->iter = iter; item->index = i; i++; items = g_list_prepend (items, item); } while (gtk_tree_model_iter_next (icon_view->priv->model, &iter)); icon_view->priv->items = g_list_reverse (items); } static void gtk_icon_view_add_move_binding (GtkBindingSet *binding_set, guint keyval, guint modmask, GtkMovementStep step, gint count) { gtk_binding_entry_add_signal (binding_set, keyval, modmask, I_("move_cursor"), 2, G_TYPE_ENUM, step, G_TYPE_INT, count); 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 gboolean gtk_icon_view_real_move_cursor (GtkIconView *icon_view, GtkMovementStep step, gint count) { GdkModifierType state; g_return_val_if_fail (GTK_ICON_VIEW (icon_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 (!GTK_WIDGET_HAS_FOCUS (GTK_WIDGET (icon_view))) return FALSE; gtk_icon_view_stop_editing (icon_view, FALSE); gtk_widget_grab_focus (GTK_WIDGET (icon_view)); if (gtk_get_current_event_state (&state)) { if ((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK) icon_view->priv->ctrl_pressed = TRUE; if ((state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK) icon_view->priv->shift_pressed = TRUE; } /* else we assume not pressed */ switch (step) { case GTK_MOVEMENT_LOGICAL_POSITIONS: case GTK_MOVEMENT_VISUAL_POSITIONS: gtk_icon_view_move_cursor_left_right (icon_view, count); break; case GTK_MOVEMENT_DISPLAY_LINES: gtk_icon_view_move_cursor_up_down (icon_view, count); break; case GTK_MOVEMENT_PAGES: gtk_icon_view_move_cursor_page_up_down (icon_view, count); break; case GTK_MOVEMENT_BUFFER_ENDS: gtk_icon_view_move_cursor_start_end (icon_view, count); break; default: g_assert_not_reached (); } icon_view->priv->ctrl_pressed = FALSE; icon_view->priv->shift_pressed = FALSE; return TRUE; } static GtkIconViewItem * find_item (GtkIconView *icon_view, GtkIconViewItem *current, gint row_ofs, gint col_ofs) { gint row, col; GList *items; GtkIconViewItem *item; /* FIXME: this could be more efficient */ row = current->row + row_ofs; col = current->col + col_ofs; for (items = icon_view->priv->items; items; items = items->next) { item = items->data; if (item->row == row && item->col == col) return item; } return NULL; } static gint find_cell (GtkIconView *icon_view, GtkIconViewItem *item, gint cell, GtkOrientation orientation, gint step, gint *count) { gint n_focusable; gint *focusable; gint first_text; gint current; gint i, k; GList *l; if (icon_view->priv->orientation != orientation) return cell; gtk_icon_view_set_cell_data (icon_view, item); focusable = g_new0 (gint, icon_view->priv->n_cells); n_focusable = 0; first_text = 0; current = 0; for (k = 0; k < 2; k++) for (l = icon_view->priv->cell_list, i = 0; l; l = l->next, i++) { GtkIconViewCellInfo *info = (GtkIconViewCellInfo *)l->data; if (info->pack == (k ? GTK_PACK_START : GTK_PACK_END)) continue; if (!info->cell->visible) continue; if (GTK_IS_CELL_RENDERER_TEXT (info->cell)) first_text = i; if (info->cell->mode != GTK_CELL_RENDERER_MODE_INERT) { if (cell == i) current = n_focusable; focusable[n_focusable] = i; n_focusable++; } } if (n_focusable == 0) focusable[n_focusable++] = first_text; if (cell < 0) { current = step > 0 ? 0 : n_focusable - 1; cell = focusable[current]; } if (current + *count < 0) { cell = -1; *count = current + *count; } else if (current + *count > n_focusable - 1) { cell = -1; *count = current + *count - (n_focusable - 1); } else { cell = focusable[current + *count]; *count = 0; } g_free (focusable); return cell; } static GtkIconViewItem * find_item_page_up_down (GtkIconView *icon_view, GtkIconViewItem *current, gint count) { GList *item, *next; gint y, col; col = current->col; y = current->y + count * icon_view->priv->vadjustment->page_size; item = g_list_find (icon_view->priv->items, current); if (count > 0) { while (item) { for (next = item->next; next; next = next->next) { if (((GtkIconViewItem *)next->data)->col == col) break; } if (!next || ((GtkIconViewItem *)next->data)->y > y) break; item = next; } } else { while (item) { for (next = item->prev; next; next = next->prev) { if (((GtkIconViewItem *)next->data)->col == col) break; } if (!next || ((GtkIconViewItem *)next->data)->y < y) break; item = next; } } if (item) return item->data; return NULL; } static gboolean gtk_icon_view_select_all_between (GtkIconView *icon_view, GtkIconViewItem *anchor, GtkIconViewItem *cursor) { GList *items; GtkIconViewItem *item; gint row1, row2, col1, col2; gboolean dirty = FALSE; if (anchor->row < cursor->row) { row1 = anchor->row; row2 = cursor->row; } else { row1 = cursor->row; row2 = anchor->row; } if (anchor->col < cursor->col) { col1 = anchor->col; col2 = cursor->col; } else { col1 = cursor->col; col2 = anchor->col; } for (items = icon_view->priv->items; items; items = items->next) { item = items->data; if (row1 <= item->row && item->row <= row2 && col1 <= item->col && item->col <= col2) { if (!item->selected) dirty = TRUE; item->selected = TRUE; gtk_icon_view_queue_draw_item (icon_view, item); } } return dirty; } static void gtk_icon_view_move_cursor_up_down (GtkIconView *icon_view, gint count) { GtkIconViewItem *item; gint cell; gboolean dirty = FALSE; gint step; if (!GTK_WIDGET_HAS_FOCUS (icon_view)) return; if (!icon_view->priv->cursor_item) { GList *list; if (count > 0) list = icon_view->priv->items; else list = g_list_last (icon_view->priv->items); item = list ? list->data : NULL; cell = -1; } else { item = icon_view->priv->cursor_item; cell = icon_view->priv->cursor_cell; step = count > 0 ? 1 : -1; while (item) { cell = find_cell (icon_view, item, cell, GTK_ORIENTATION_VERTICAL, step, &count); if (count == 0) break; item = find_item (icon_view, item, step, 0); count = count - step; } } if (!item) { gtk_widget_error_bell (GTK_WIDGET (icon_view)); return; } if (icon_view->priv->ctrl_pressed || !icon_view->priv->shift_pressed || !icon_view->priv->anchor_item || icon_view->priv->selection_mode != GTK_SELECTION_MULTIPLE) icon_view->priv->anchor_item = item; gtk_icon_view_set_cursor_item (icon_view, item, cell); if (!icon_view->priv->ctrl_pressed && icon_view->priv->selection_mode != GTK_SELECTION_NONE) { dirty = gtk_icon_view_unselect_all_internal (icon_view); dirty = gtk_icon_view_select_all_between (icon_view, icon_view->priv->anchor_item, item) || dirty; } gtk_icon_view_scroll_to_item (icon_view, item); if (dirty) g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0); } static void gtk_icon_view_move_cursor_page_up_down (GtkIconView *icon_view, gint count) { GtkIconViewItem *item; gboolean dirty = FALSE; if (!GTK_WIDGET_HAS_FOCUS (icon_view)) return; if (!icon_view->priv->cursor_item) { GList *list; if (count > 0) list = icon_view->priv->items; else list = g_list_last (icon_view->priv->items); item = list ? list->data : NULL; } else item = find_item_page_up_down (icon_view, icon_view->priv->cursor_item, count); if (item == icon_view->priv->cursor_item) gtk_widget_error_bell (GTK_WIDGET (icon_view)); if (!item) return; if (icon_view->priv->ctrl_pressed || !icon_view->priv->shift_pressed || !icon_view->priv->anchor_item || icon_view->priv->selection_mode != GTK_SELECTION_MULTIPLE) icon_view->priv->anchor_item = item; gtk_icon_view_set_cursor_item (icon_view, item, -1); if (!icon_view->priv->ctrl_pressed && icon_view->priv->selection_mode != GTK_SELECTION_NONE) { dirty = gtk_icon_view_unselect_all_internal (icon_view); dirty = gtk_icon_view_select_all_between (icon_view, icon_view->priv->anchor_item, item) || dirty; } gtk_icon_view_scroll_to_item (icon_view, item); if (dirty) g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0); } static void gtk_icon_view_move_cursor_left_right (GtkIconView *icon_view, gint count) { GtkIconViewItem *item; gint cell = -1; gboolean dirty = FALSE; gint step; if (!GTK_WIDGET_HAS_FOCUS (icon_view)) return; if (!icon_view->priv->cursor_item) { GList *list; if (count > 0) list = icon_view->priv->items; else list = g_list_last (icon_view->priv->items); item = list ? list->data : NULL; } else { item = icon_view->priv->cursor_item; cell = icon_view->priv->cursor_cell; step = count > 0 ? 1 : -1; while (item) { cell = find_cell (icon_view, item, cell, GTK_ORIENTATION_HORIZONTAL, step, &count); if (count == 0) break; item = find_item (icon_view, item, 0, step); count = count - step; } } if (!item) { gtk_widget_error_bell (GTK_WIDGET (icon_view)); return; } if (icon_view->priv->ctrl_pressed || !icon_view->priv->shift_pressed || !icon_view->priv->anchor_item || icon_view->priv->selection_mode != GTK_SELECTION_MULTIPLE) icon_view->priv->anchor_item = item; gtk_icon_view_set_cursor_item (icon_view, item, cell); if (!icon_view->priv->ctrl_pressed && icon_view->priv->selection_mode != GTK_SELECTION_NONE) { dirty = gtk_icon_view_unselect_all_internal (icon_view); dirty = gtk_icon_view_select_all_between (icon_view, icon_view->priv->anchor_item, item) || dirty; } gtk_icon_view_scroll_to_item (icon_view, item); if (dirty) g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0); } static void gtk_icon_view_move_cursor_start_end (GtkIconView *icon_view, gint count) { GtkIconViewItem *item; GList *list; gboolean dirty = FALSE; if (!GTK_WIDGET_HAS_FOCUS (icon_view)) return; if (count < 0) list = icon_view->priv->items; else list = g_list_last (icon_view->priv->items); item = list ? list->data : NULL; if (item == icon_view->priv->cursor_item) gtk_widget_error_bell (GTK_WIDGET (icon_view)); if (!item) return; if (icon_view->priv->ctrl_pressed || !icon_view->priv->shift_pressed || !icon_view->priv->anchor_item || icon_view->priv->selection_mode != GTK_SELECTION_MULTIPLE) icon_view->priv->anchor_item = item; gtk_icon_view_set_cursor_item (icon_view, item, -1); if (!icon_view->priv->ctrl_pressed && icon_view->priv->selection_mode != GTK_SELECTION_NONE) { dirty = gtk_icon_view_unselect_all_internal (icon_view); dirty = gtk_icon_view_select_all_between (icon_view, icon_view->priv->anchor_item, item) || dirty; } gtk_icon_view_scroll_to_item (icon_view, item); if (dirty) g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0); } /** * gtk_icon_view_scroll_to_path: * @icon_view: A #GtkIconView. * @path: The path of the item to move to. * @use_align: whether to use alignment arguments, or %FALSE. * @row_align: The vertical alignment of the item specified by @path. * @col_align: The horizontal alignment of the item specified by @path. * * Moves the alignments of @icon_view to the position specified by @path. * @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 item onto the screen. * This means that the item will be scrolled to the edge closest to its current * position. If the item 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 @icon_view is realized, the * centered path will be modified to reflect this change. * * Since: 2.8 **/ void gtk_icon_view_scroll_to_path (GtkIconView *icon_view, GtkTreePath *path, gboolean use_align, gfloat row_align, gfloat col_align) { GtkIconViewItem *item = NULL; g_return_if_fail (GTK_IS_ICON_VIEW (icon_view)); g_return_if_fail (path != 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); if (gtk_tree_path_get_depth (path) > 0) item = g_list_nth_data (icon_view->priv->items, gtk_tree_path_get_indices(path)[0]); if (!GTK_WIDGET_REALIZED (icon_view) || !item || item->width < 0) { if (icon_view->priv->scroll_to_path) gtk_tree_row_reference_free (icon_view->priv->scroll_to_path); icon_view->priv->scroll_to_path = NULL; if (path) icon_view->priv->scroll_to_path = gtk_tree_row_reference_new_proxy (G_OBJECT (icon_view), icon_view->priv->model, path); icon_view->priv->scroll_to_use_align = use_align; icon_view->priv->scroll_to_row_align = row_align; icon_view->priv->scroll_to_col_align = col_align; return; } if (use_align) { gint x, y; gint focus_width; gfloat offset, value; gtk_widget_style_get (GTK_WIDGET (icon_view), "focus-line-width", &focus_width, NULL); gdk_window_get_position (icon_view->priv->bin_window, &x, &y); offset = y + item->y - focus_width - row_align * (GTK_WIDGET (icon_view)->allocation.height - item->height); value = CLAMP (icon_view->priv->vadjustment->value + offset, icon_view->priv->vadjustment->lower, icon_view->priv->vadjustment->upper - icon_view->priv->vadjustment->page_size); gtk_adjustment_set_value (icon_view->priv->vadjustment, value); offset = x + item->x - focus_width - col_align * (GTK_WIDGET (icon_view)->allocation.width - item->width); value = CLAMP (icon_view->priv->hadjustment->value + offset, icon_view->priv->hadjustment->lower, icon_view->priv->hadjustment->upper - icon_view->priv->hadjustment->page_size); gtk_adjustment_set_value (icon_view->priv->hadjustment, value); gtk_adjustment_changed (icon_view->priv->hadjustment); gtk_adjustment_changed (icon_view->priv->vadjustment); } else gtk_icon_view_scroll_to_item (icon_view, item); } static void gtk_icon_view_scroll_to_item (GtkIconView *icon_view, GtkIconViewItem *item) { gint x, y, width, height; gint focus_width; gtk_widget_style_get (GTK_WIDGET (icon_view), "focus-line-width", &focus_width, NULL); gdk_drawable_get_size (GDK_DRAWABLE (icon_view->priv->bin_window), &width, &height); gdk_window_get_position (icon_view->priv->bin_window, &x, &y); if (y + item->y - focus_width < 0) gtk_adjustment_set_value (icon_view->priv->vadjustment, icon_view->priv->vadjustment->value + y + item->y - focus_width); else if (y + item->y + item->height + focus_width > GTK_WIDGET (icon_view)->allocation.height) gtk_adjustment_set_value (icon_view->priv->vadjustment, icon_view->priv->vadjustment->value + y + item->y + item->height + focus_width - GTK_WIDGET (icon_view)->allocation.height); if (x + item->x - focus_width < 0) gtk_adjustment_set_value (icon_view->priv->hadjustment, icon_view->priv->hadjustment->value + x + item->x - focus_width); else if (x + item->x + item->width + focus_width > GTK_WIDGET (icon_view)->allocation.width) gtk_adjustment_set_value (icon_view->priv->hadjustment, icon_view->priv->hadjustment->value + x + item->x + item->width + focus_width - GTK_WIDGET (icon_view)->allocation.width); gtk_adjustment_changed (icon_view->priv->hadjustment); gtk_adjustment_changed (icon_view->priv->vadjustment); } /* GtkCellLayout implementation */ static GtkIconViewCellInfo * gtk_icon_view_get_cell_info (GtkIconView *icon_view, GtkCellRenderer *renderer) { GList *i; for (i = icon_view->priv->cell_list; i; i = i->next) { GtkIconViewCellInfo *info = (GtkIconViewCellInfo *)i->data; if (info->cell == renderer) return info; } return NULL; } static void gtk_icon_view_set_cell_data (GtkIconView *icon_view, GtkIconViewItem *item) { GList *i; gboolean iters_persist; GtkTreeIter iter; iters_persist = gtk_tree_model_get_flags (icon_view->priv->model) & GTK_TREE_MODEL_ITERS_PERSIST; if (!iters_persist) { GtkTreePath *path; path = gtk_tree_path_new_from_indices (item->index, -1); if (!gtk_tree_model_get_iter (icon_view->priv->model, &iter, path)) return; gtk_tree_path_free (path); } else iter = item->iter; for (i = icon_view->priv->cell_list; i; i = i->next) { GSList *j; GtkIconViewCellInfo *info = i->data; g_object_freeze_notify (G_OBJECT (info->cell)); for (j = info->attributes; j && j->next; j = j->next->next) { gchar *property = j->data; gint column = GPOINTER_TO_INT (j->next->data); GValue value = {0, }; gtk_tree_model_get_value (icon_view->priv->model, &iter, column, &value); g_object_set_property (G_OBJECT (info->cell), property, &value); g_value_unset (&value); } if (info->func) (* info->func) (GTK_CELL_LAYOUT (icon_view), info->cell, icon_view->priv->model, &iter, info->func_data); g_object_thaw_notify (G_OBJECT (info->cell)); } adjust_wrap_width (icon_view, item); } static void free_cell_attributes (GtkIconViewCellInfo *info) { GSList *list; list = info->attributes; while (list && list->next) { g_free (list->data); list = list->next->next; } g_slist_free (info->attributes); info->attributes = NULL; } static void free_cell_info (GtkIconViewCellInfo *info) { free_cell_attributes (info); g_object_unref (info->cell); if (info->destroy) (* info->destroy) (info->func_data); g_free (info); } static void gtk_icon_view_cell_layout_pack_start (GtkCellLayout *layout, GtkCellRenderer *renderer, gboolean expand) { GtkIconViewCellInfo *info; GtkIconView *icon_view = GTK_ICON_VIEW (layout); g_return_if_fail (GTK_IS_CELL_RENDERER (renderer)); g_return_if_fail (!gtk_icon_view_get_cell_info (icon_view, renderer)); g_object_ref_sink (renderer); info = g_new0 (GtkIconViewCellInfo, 1); info->cell = renderer; info->expand = expand ? TRUE : FALSE; info->pack = GTK_PACK_START; info->position = icon_view->priv->n_cells; icon_view->priv->cell_list = g_list_append (icon_view->priv->cell_list, info); icon_view->priv->n_cells++; } static void gtk_icon_view_cell_layout_pack_end (GtkCellLayout *layout, GtkCellRenderer *renderer, gboolean expand) { GtkIconViewCellInfo *info; GtkIconView *icon_view = GTK_ICON_VIEW (layout); g_return_if_fail (GTK_IS_CELL_RENDERER (renderer)); g_return_if_fail (!gtk_icon_view_get_cell_info (icon_view, renderer)); g_object_ref_sink (renderer); info = g_new0 (GtkIconViewCellInfo, 1); info->cell = renderer; info->expand = expand ? TRUE : FALSE; info->pack = GTK_PACK_END; info->position = icon_view->priv->n_cells; icon_view->priv->cell_list = g_list_append (icon_view->priv->cell_list, info); icon_view->priv->n_cells++; } static void gtk_icon_view_cell_layout_add_attribute (GtkCellLayout *layout, GtkCellRenderer *renderer, const gchar *attribute, gint column) { GtkIconViewCellInfo *info; GtkIconView *icon_view = GTK_ICON_VIEW (layout); info = gtk_icon_view_get_cell_info (icon_view, renderer); g_return_if_fail (info != NULL); info->attributes = g_slist_prepend (info->attributes, GINT_TO_POINTER (column)); info->attributes = g_slist_prepend (info->attributes, g_strdup (attribute)); } static void gtk_icon_view_cell_layout_clear (GtkCellLayout *layout) { GtkIconView *icon_view = GTK_ICON_VIEW (layout); while (icon_view->priv->cell_list) { GtkIconViewCellInfo *info = (GtkIconViewCellInfo *)icon_view->priv->cell_list->data; free_cell_info (info); icon_view->priv->cell_list = g_list_delete_link (icon_view->priv->cell_list, icon_view->priv->cell_list); } icon_view->priv->n_cells = 0; } static void gtk_icon_view_cell_layout_set_cell_data_func (GtkCellLayout *layout, GtkCellRenderer *cell, GtkCellLayoutDataFunc func, gpointer func_data, GDestroyNotify destroy) { GtkIconViewCellInfo *info; GtkIconView *icon_view = GTK_ICON_VIEW (layout); info = gtk_icon_view_get_cell_info (icon_view, cell); g_return_if_fail (info != NULL); if (info->destroy) { GDestroyNotify d = info->destroy; info->destroy = NULL; d (info->func_data); } info->func = func; info->func_data = func_data; info->destroy = destroy; } static void gtk_icon_view_cell_layout_clear_attributes (GtkCellLayout *layout, GtkCellRenderer *renderer) { GtkIconViewCellInfo *info; info = gtk_icon_view_get_cell_info (GTK_ICON_VIEW (layout), renderer); if (info != NULL) free_cell_attributes (info); } static void gtk_icon_view_cell_layout_reorder (GtkCellLayout *layout, GtkCellRenderer *cell, gint position) { GtkIconView *icon_view; GList *link, *l; GtkIconViewCellInfo *info; gint i; icon_view = GTK_ICON_VIEW (layout); g_return_if_fail (GTK_IS_CELL_RENDERER (cell)); info = gtk_icon_view_get_cell_info (icon_view, cell); g_return_if_fail (info != NULL); g_return_if_fail (position >= 0); link = g_list_find (icon_view->priv->cell_list, info); g_return_if_fail (link != NULL); icon_view->priv->cell_list = g_list_remove_link (icon_view->priv->cell_list, link); icon_view->priv->cell_list = g_list_insert (icon_view->priv->cell_list, info, position); for (l = icon_view->priv->cell_list, i = 0; l; l = l->next, i++) { info = l->data; info->position = i; } gtk_widget_queue_draw (GTK_WIDGET (icon_view)); } static GList * gtk_icon_view_cell_layout_get_cells (GtkCellLayout *layout) { GtkIconView *icon_view = (GtkIconView *)layout; GList *retval = NULL, *l; for (l = icon_view->priv->cell_list; l; l = l->next) { GtkIconViewCellInfo *info = (GtkIconViewCellInfo *)l->data; retval = g_list_prepend (retval, info->cell); } return g_list_reverse (retval); } /* Public API */ /** * gtk_icon_view_new: * * Creates a new #GtkIconView widget * * Return value: A newly created #GtkIconView widget * * Since: 2.6 **/ GtkWidget * gtk_icon_view_new (void) { return g_object_new (GTK_TYPE_ICON_VIEW, NULL); } /** * gtk_icon_view_new_with_model: * @model: The model. * * Creates a new #GtkIconView widget with the model @model. * * Return value: A newly created #GtkIconView widget. * * Since: 2.6 **/ GtkWidget * gtk_icon_view_new_with_model (GtkTreeModel *model) { return g_object_new (GTK_TYPE_ICON_VIEW, "model", model, NULL); } /** * gtk_icon_view_get_path_at_pos: * @icon_view: A #GtkIconView. * @x: The x position to be identified * @y: The y position to be identified * * Finds the path at the point (@x, @y), relative to widget coordinates. * See gtk_icon_view_get_item_at_pos(), if you are also interested in * the cell at the specified position. * * Return value: The #GtkTreePath corresponding to the icon or %NULL * if no icon exists at that position. * * Since: 2.6 **/ GtkTreePath * gtk_icon_view_get_path_at_pos (GtkIconView *icon_view, gint x, gint y) { GtkIconViewItem *item; GtkTreePath *path; g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), NULL); item = gtk_icon_view_get_item_at_coords (icon_view, x, y, TRUE, NULL); if (!item) return NULL; path = gtk_tree_path_new_from_indices (item->index, -1); return path; } /** * gtk_icon_view_get_item_at_pos: * @icon_view: A #GtkIconView. * @x: The x position to be identified * @y: The y position to be identified * @path: Return location for the path, or %NULL * @cell: Return location for the renderer responsible for the cell * at (@x, @y), or %NULL * * Finds the path at the point (@x, @y), relative to widget coordinates. * In contrast to gtk_icon_view_get_path_at_pos(), this function also * obtains the cell at the specified position. The returned path should * be freed with gtk_tree_path_free(). * * Return value: %TRUE if an item exists at the specified position * * Since: 2.8 **/ gboolean gtk_icon_view_get_item_at_pos (GtkIconView *icon_view, gint x, gint y, GtkTreePath **path, GtkCellRenderer **cell) { GtkIconViewItem *item; GtkIconViewCellInfo *info; g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), FALSE); item = gtk_icon_view_get_item_at_coords (icon_view, x, y, TRUE, &info); if (path != NULL) { if (item != NULL) *path = gtk_tree_path_new_from_indices (item->index, -1); else *path = NULL; } if (cell != NULL) { if (info != NULL) *cell = info->cell; else *cell = NULL; } return (item != NULL); } /** * gtk_icon_view_get_visible_range: * @icon_view: A #GtkIconView * @start_path: Return location for start of region, or %NULL * @end_path: 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. * * Both paths should be freed with gtk_tree_path_free() after use. * * Return value: %TRUE, if valid paths were placed in @start_path and @end_path * * Since: 2.8 **/ gboolean gtk_icon_view_get_visible_range (GtkIconView *icon_view, GtkTreePath **start_path, GtkTreePath **end_path) { gint start_index = -1; gint end_index = -1; GList *icons; g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), FALSE); if (icon_view->priv->hadjustment == NULL || icon_view->priv->vadjustment == NULL) return FALSE; if (start_path == NULL && end_path == NULL) return FALSE; for (icons = icon_view->priv->items; icons; icons = icons->next) { GtkIconViewItem *item = icons->data; if ((item->x + item->width >= (int)icon_view->priv->hadjustment->value) && (item->y + item->height >= (int)icon_view->priv->vadjustment->value) && (item->x <= (int) (icon_view->priv->hadjustment->value + icon_view->priv->hadjustment->page_size)) && (item->y <= (int) (icon_view->priv->vadjustment->value + icon_view->priv->vadjustment->page_size))) { if (start_index == -1) start_index = item->index; end_index = item->index; } } if (start_path && start_index != -1) *start_path = gtk_tree_path_new_from_indices (start_index, -1); if (end_path && end_index != -1) *end_path = gtk_tree_path_new_from_indices (end_index, -1); return start_index != -1; } /** * gtk_icon_view_selected_foreach: * @icon_view: A #GtkIconView. * @func: The funcion to call for each selected icon. * @data: User data to pass to the function. * * Calls a function for each selected icon. Note that the model or * selection cannot be modified from within this function. * * Since: 2.6 **/ void gtk_icon_view_selected_foreach (GtkIconView *icon_view, GtkIconViewForeachFunc func, gpointer data) { GList *list; for (list = icon_view->priv->items; list; list = list->next) { GtkIconViewItem *item = list->data; GtkTreePath *path = gtk_tree_path_new_from_indices (item->index, -1); if (item->selected) (* func) (icon_view, path, data); gtk_tree_path_free (path); } } /** * gtk_icon_view_set_selection_mode: * @icon_view: A #GtkIconView. * @mode: The selection mode * * Sets the selection mode of the @icon_view. * * Since: 2.6 **/ void gtk_icon_view_set_selection_mode (GtkIconView *icon_view, GtkSelectionMode mode) { g_return_if_fail (GTK_IS_ICON_VIEW (icon_view)); if (mode == icon_view->priv->selection_mode) return; if (mode == GTK_SELECTION_NONE || icon_view->priv->selection_mode == GTK_SELECTION_MULTIPLE) gtk_icon_view_unselect_all (icon_view); icon_view->priv->selection_mode = mode; g_object_notify (G_OBJECT (icon_view), "selection-mode"); } /** * gtk_icon_view_get_selection_mode: * @icon_view: A #GtkIconView. * * Gets the selection mode of the @icon_view. * * Return value: the current selection mode * * Since: 2.6 **/ GtkSelectionMode gtk_icon_view_get_selection_mode (GtkIconView *icon_view) { g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), GTK_SELECTION_SINGLE); return icon_view->priv->selection_mode; } /** * gtk_icon_view_set_model: * @icon_view: A #GtkIconView. * @model: The model. * * Sets the model for a #GtkIconView. * If the @icon_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. * * Since: 2.6 **/ void gtk_icon_view_set_model (GtkIconView *icon_view, GtkTreeModel *model) { g_return_if_fail (GTK_IS_ICON_VIEW (icon_view)); g_return_if_fail (model == NULL || GTK_IS_TREE_MODEL (model)); if (icon_view->priv->model == model) return; if (icon_view->priv->scroll_to_path) { gtk_tree_row_reference_free (icon_view->priv->scroll_to_path); icon_view->priv->scroll_to_path = NULL; } gtk_icon_view_stop_editing (icon_view, TRUE); if (model) { GType column_type; g_return_if_fail (gtk_tree_model_get_flags (model) & GTK_TREE_MODEL_LIST_ONLY); if (icon_view->priv->pixbuf_column != -1) { column_type = gtk_tree_model_get_column_type (model, icon_view->priv->pixbuf_column); g_return_if_fail (column_type == GDK_TYPE_PIXBUF); } if (icon_view->priv->text_column != -1) { column_type = gtk_tree_model_get_column_type (model, icon_view->priv->text_column); g_return_if_fail (column_type == G_TYPE_STRING); } if (icon_view->priv->markup_column != -1) { column_type = gtk_tree_model_get_column_type (model, icon_view->priv->markup_column); g_return_if_fail (column_type == G_TYPE_STRING); } } if (icon_view->priv->model) { g_signal_handlers_disconnect_by_func (icon_view->priv->model, gtk_icon_view_row_changed, icon_view); g_signal_handlers_disconnect_by_func (icon_view->priv->model, gtk_icon_view_row_inserted, icon_view); g_signal_handlers_disconnect_by_func (icon_view->priv->model, gtk_icon_view_row_deleted, icon_view); g_signal_handlers_disconnect_by_func (icon_view->priv->model, gtk_icon_view_rows_reordered, icon_view); g_object_unref (icon_view->priv->model); g_list_foreach (icon_view->priv->items, (GFunc)gtk_icon_view_item_free, NULL); g_list_free (icon_view->priv->items); icon_view->priv->items = NULL; icon_view->priv->anchor_item = NULL; icon_view->priv->cursor_item = NULL; icon_view->priv->last_single_clicked = NULL; icon_view->priv->width = 0; icon_view->priv->height = 0; } icon_view->priv->model = model; if (icon_view->priv->model) { g_object_ref (icon_view->priv->model); g_signal_connect (icon_view->priv->model, "row_changed", G_CALLBACK (gtk_icon_view_row_changed), icon_view); g_signal_connect (icon_view->priv->model, "row_inserted", G_CALLBACK (gtk_icon_view_row_inserted), icon_view); g_signal_connect (icon_view->priv->model, "row_deleted", G_CALLBACK (gtk_icon_view_row_deleted), icon_view); g_signal_connect (icon_view->priv->model, "rows_reordered", G_CALLBACK (gtk_icon_view_rows_reordered), icon_view); gtk_icon_view_build_items (icon_view); gtk_icon_view_queue_layout (icon_view); } g_object_notify (G_OBJECT (icon_view), "model"); if (GTK_WIDGET_REALIZED (icon_view)) gtk_widget_queue_resize (GTK_WIDGET (icon_view)); } /** * gtk_icon_view_get_model: * @icon_view: a #GtkIconView * * Returns the model the #GtkIconView is based on. Returns %NULL if the * model is unset. * * Return value: A #GtkTreeModel, or %NULL if none is currently being used. * * Since: 2.6 **/ GtkTreeModel * gtk_icon_view_get_model (GtkIconView *icon_view) { g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), NULL); return icon_view->priv->model; } static void update_text_cell (GtkIconView *icon_view) { GtkIconViewCellInfo *info; GList *l; gint i; if (icon_view->priv->text_column == -1 && icon_view->priv->markup_column == -1) { if (icon_view->priv->text_cell != -1) { if (icon_view->priv->pixbuf_cell > icon_view->priv->text_cell) icon_view->priv->pixbuf_cell--; info = g_list_nth_data (icon_view->priv->cell_list, icon_view->priv->text_cell); icon_view->priv->cell_list = g_list_remove (icon_view->priv->cell_list, info); free_cell_info (info); icon_view->priv->n_cells--; icon_view->priv->text_cell = -1; } } else { if (icon_view->priv->text_cell == -1) { GtkCellRenderer *cell = gtk_cell_renderer_text_new (); gtk_cell_layout_pack_end (GTK_CELL_LAYOUT (icon_view), cell, FALSE); for (l = icon_view->priv->cell_list, i = 0; l; l = l->next, i++) { info = l->data; if (info->cell == cell) { icon_view->priv->text_cell = i; break; } } } info = g_list_nth_data (icon_view->priv->cell_list, icon_view->priv->text_cell); if (icon_view->priv->markup_column != -1) gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (icon_view), info->cell, "markup", icon_view->priv->markup_column, NULL); else gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (icon_view), info->cell, "text", icon_view->priv->text_column, NULL); if (icon_view->priv->orientation == GTK_ORIENTATION_VERTICAL) g_object_set (info->cell, "alignment", PANGO_ALIGN_CENTER, "wrap-mode", PANGO_WRAP_WORD, "wrap-width", icon_view->priv->item_width, "xalign", 0.0, "yalign", 0.0, NULL); else g_object_set (info->cell, "alignment", PANGO_ALIGN_LEFT, "wrap-mode", PANGO_WRAP_WORD, "wrap-width", icon_view->priv->item_width, "xalign", 0.0, "yalign", 0.0, NULL); } } static void update_pixbuf_cell (GtkIconView *icon_view) { GtkIconViewCellInfo *info; GList *l; gint i; if (icon_view->priv->pixbuf_column == -1) { if (icon_view->priv->pixbuf_cell != -1) { if (icon_view->priv->text_cell > icon_view->priv->pixbuf_cell) icon_view->priv->text_cell--; info = g_list_nth_data (icon_view->priv->cell_list, icon_view->priv->pixbuf_cell); icon_view->priv->cell_list = g_list_remove (icon_view->priv->cell_list, info); free_cell_info (info); icon_view->priv->n_cells--; icon_view->priv->pixbuf_cell = -1; } } else { if (icon_view->priv->pixbuf_cell == -1) { GtkCellRenderer *cell = gtk_cell_renderer_pixbuf_new (); gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (icon_view), cell, FALSE); for (l = icon_view->priv->cell_list, i = 0; l; l = l->next, i++) { info = l->data; if (info->cell == cell) { icon_view->priv->pixbuf_cell = i; break; } } } info = g_list_nth_data (icon_view->priv->cell_list, icon_view->priv->pixbuf_cell); gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (icon_view), info->cell, "pixbuf", icon_view->priv->pixbuf_column, NULL); if (icon_view->priv->orientation == GTK_ORIENTATION_VERTICAL) g_object_set (info->cell, "follow-state", TRUE, "xalign", 0.5, "yalign", 1.0, NULL); else g_object_set (info->cell, "follow-state", TRUE, "xalign", 0.0, "yalign", 0.0, NULL); } } /** * gtk_icon_view_set_text_column: * @icon_view: A #GtkIconView. * @column: A column in the currently used model. * * Sets the column with text for @icon_view to be @column. The text * column must be of type #G_TYPE_STRING. * * Since: 2.6 **/ void gtk_icon_view_set_text_column (GtkIconView *icon_view, gint column) { if (column == icon_view->priv->text_column) return; if (column == -1) icon_view->priv->text_column = -1; else { if (icon_view->priv->model != NULL) { GType column_type; column_type = gtk_tree_model_get_column_type (icon_view->priv->model, column); g_return_if_fail (column_type == G_TYPE_STRING); } icon_view->priv->text_column = column; } gtk_icon_view_stop_editing (icon_view, TRUE); update_text_cell (icon_view); gtk_icon_view_invalidate_sizes (icon_view); gtk_icon_view_queue_layout (icon_view); g_object_notify (G_OBJECT (icon_view), "text-column"); } /** * gtk_icon_view_get_text_column: * @icon_view: A #GtkIconView. * * Returns the column with text for @icon_view. * * Returns: the text column, or -1 if it's unset. * * Since: 2.6 */ gint gtk_icon_view_get_text_column (GtkIconView *icon_view) { g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1); return icon_view->priv->text_column; } /** * gtk_icon_view_set_markup_column: * @icon_view: A #GtkIconView. * @column: A column in the currently used model. * * Sets the column with markup information for @icon_view to be * @column. The markup column must be of type #G_TYPE_STRING. * If the markup column is set to something, it overrides * the text column set by gtk_icon_view_set_text_column(). * * Since: 2.6 **/ void gtk_icon_view_set_markup_column (GtkIconView *icon_view, gint column) { if (column == icon_view->priv->markup_column) return; if (column == -1) icon_view->priv->markup_column = -1; else { if (icon_view->priv->model != NULL) { GType column_type; column_type = gtk_tree_model_get_column_type (icon_view->priv->model, column); g_return_if_fail (column_type == G_TYPE_STRING); } icon_view->priv->markup_column = column; } gtk_icon_view_stop_editing (icon_view, TRUE); update_text_cell (icon_view); gtk_icon_view_invalidate_sizes (icon_view); gtk_icon_view_queue_layout (icon_view); g_object_notify (G_OBJECT (icon_view), "markup-column"); } /** * gtk_icon_view_get_markup_column: * @icon_view: A #GtkIconView. * * Returns the column with markup text for @icon_view. * * Returns: the markup column, or -1 if it's unset. * * Since: 2.6 */ gint gtk_icon_view_get_markup_column (GtkIconView *icon_view) { g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1); return icon_view->priv->markup_column; } /** * gtk_icon_view_set_pixbuf_column: * @icon_view: A #GtkIconView. * @column: A column in the currently used model. * * Sets the column with pixbufs for @icon_view to be @column. The pixbuf * column must be of type #GDK_TYPE_PIXBUF * * Since: 2.6 **/ void gtk_icon_view_set_pixbuf_column (GtkIconView *icon_view, gint column) { if (column == icon_view->priv->pixbuf_column) return; if (column == -1) icon_view->priv->pixbuf_column = -1; else { if (icon_view->priv->model != NULL) { GType column_type; column_type = gtk_tree_model_get_column_type (icon_view->priv->model, column); g_return_if_fail (column_type == GDK_TYPE_PIXBUF); } icon_view->priv->pixbuf_column = column; } gtk_icon_view_stop_editing (icon_view, TRUE); update_pixbuf_cell (icon_view); gtk_icon_view_invalidate_sizes (icon_view); gtk_icon_view_queue_layout (icon_view); g_object_notify (G_OBJECT (icon_view), "pixbuf-column"); } /** * gtk_icon_view_get_pixbuf_column: * @icon_view: A #GtkIconView. * * Returns the column with pixbufs for @icon_view. * * Returns: the pixbuf column, or -1 if it's unset. * * Since: 2.6 */ gint gtk_icon_view_get_pixbuf_column (GtkIconView *icon_view) { g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1); return icon_view->priv->pixbuf_column; } /** * gtk_icon_view_select_path: * @icon_view: A #GtkIconView. * @path: The #GtkTreePath to be selected. * * Selects the row at @path. * * Since: 2.6 **/ void gtk_icon_view_select_path (GtkIconView *icon_view, GtkTreePath *path) { GtkIconViewItem *item = NULL; g_return_if_fail (GTK_IS_ICON_VIEW (icon_view)); g_return_if_fail (icon_view->priv->model != NULL); g_return_if_fail (path != NULL); if (gtk_tree_path_get_depth (path) > 0) item = g_list_nth_data (icon_view->priv->items, gtk_tree_path_get_indices(path)[0]); if (item) gtk_icon_view_select_item (icon_view, item); } /** * gtk_icon_view_unselect_path: * @icon_view: A #GtkIconView. * @path: The #GtkTreePath to be unselected. * * Unselects the row at @path. * * Since: 2.6 **/ void gtk_icon_view_unselect_path (GtkIconView *icon_view, GtkTreePath *path) { GtkIconViewItem *item; g_return_if_fail (GTK_IS_ICON_VIEW (icon_view)); g_return_if_fail (icon_view->priv->model != NULL); g_return_if_fail (path != NULL); item = g_list_nth_data (icon_view->priv->items, gtk_tree_path_get_indices(path)[0]); if (!item) return; gtk_icon_view_unselect_item (icon_view, item); } /** * gtk_icon_view_get_selected_items: * @icon_view: A #GtkIconView. * * Creates a list of paths of all selected items. Additionally, if you are * planning on modifying the model after calling this function, you may * want to convert the returned list into a list of #GtkTreeRowReferences. * To do this, you can use gtk_tree_row_reference_new(). * * To free the return value, use: * * g_list_foreach (list, gtk_tree_path_free, NULL); * g_list_free (list); * * * Return value: A #GList containing a #GtkTreePath for each selected row. * * Since: 2.6 **/ GList * gtk_icon_view_get_selected_items (GtkIconView *icon_view) { GList *list; GList *selected = NULL; g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), NULL); for (list = icon_view->priv->items; list != NULL; list = list->next) { GtkIconViewItem *item = list->data; if (item->selected) { GtkTreePath *path = gtk_tree_path_new_from_indices (item->index, -1); selected = g_list_prepend (selected, path); } } return selected; } /** * gtk_icon_view_select_all: * @icon_view: A #GtkIconView. * * Selects all the icons. @icon_view must has its selection mode set * to #GTK_SELECTION_MULTIPLE. * * Since: 2.6 **/ void gtk_icon_view_select_all (GtkIconView *icon_view) { GList *items; gboolean dirty = FALSE; g_return_if_fail (GTK_IS_ICON_VIEW (icon_view)); if (icon_view->priv->selection_mode != GTK_SELECTION_MULTIPLE) return; for (items = icon_view->priv->items; items; items = items->next) { GtkIconViewItem *item = items->data; if (!item->selected) { dirty = TRUE; item->selected = TRUE; gtk_icon_view_queue_draw_item (icon_view, item); } } if (dirty) g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0); } /** * gtk_icon_view_unselect_all: * @icon_view: A #GtkIconView. * * Unselects all the icons. * * Since: 2.6 **/ void gtk_icon_view_unselect_all (GtkIconView *icon_view) { gboolean dirty = FALSE; g_return_if_fail (GTK_IS_ICON_VIEW (icon_view)); if (icon_view->priv->selection_mode == GTK_SELECTION_BROWSE) return; dirty = gtk_icon_view_unselect_all_internal (icon_view); if (dirty) g_signal_emit (icon_view, icon_view_signals[SELECTION_CHANGED], 0); } /** * gtk_icon_view_path_is_selected: * @icon_view: A #GtkIconView. * @path: A #GtkTreePath to check selection on. * * Returns %TRUE if the icon pointed to by @path is currently * selected. If @path does not point to a valid location, %FALSE is returned. * * Return value: %TRUE if @path is selected. * * Since: 2.6 **/ gboolean gtk_icon_view_path_is_selected (GtkIconView *icon_view, GtkTreePath *path) { GtkIconViewItem *item; g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), FALSE); g_return_val_if_fail (icon_view->priv->model != NULL, FALSE); g_return_val_if_fail (path != NULL, FALSE); item = g_list_nth_data (icon_view->priv->items, gtk_tree_path_get_indices(path)[0]); if (!item) return FALSE; return item->selected; } /** * gtk_icon_view_item_activated: * @icon_view: A #GtkIconView * @path: The #GtkTreePath to be activated * * Activates the item determined by @path. * * Since: 2.6 **/ void gtk_icon_view_item_activated (GtkIconView *icon_view, GtkTreePath *path) { g_return_if_fail (GTK_IS_ICON_VIEW (icon_view)); g_return_if_fail (path != NULL); g_signal_emit (icon_view, icon_view_signals[ITEM_ACTIVATED], 0, path); } /** * gtk_icon_view_set_orientation: * @icon_view: a #GtkIconView * @orientation: the relative position of texts and icons * * Sets the ::orientation property which determines whether the labels * are drawn beside the icons instead of below. * * Since: 2.6 **/ void gtk_icon_view_set_orientation (GtkIconView *icon_view, GtkOrientation orientation) { g_return_if_fail (GTK_IS_ICON_VIEW (icon_view)); if (icon_view->priv->orientation != orientation) { icon_view->priv->orientation = orientation; gtk_icon_view_stop_editing (icon_view, TRUE); gtk_icon_view_invalidate_sizes (icon_view); gtk_icon_view_queue_layout (icon_view); update_text_cell (icon_view); update_pixbuf_cell (icon_view); g_object_notify (G_OBJECT (icon_view), "orientation"); } } /** * gtk_icon_view_get_orientation: * @icon_view: a #GtkIconView * * Returns the value of the ::orientation property which determines * whether the labels are drawn beside the icons instead of below. * * Return value: the relative position of texts and icons * * Since: 2.6 **/ GtkOrientation gtk_icon_view_get_orientation (GtkIconView *icon_view) { g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), GTK_ORIENTATION_VERTICAL); return icon_view->priv->orientation; } /** * gtk_icon_view_set_columns: * @icon_view: a #GtkIconView * @columns: the number of columns * * Sets the ::columns property which determines in how * many columns the icons are arranged. If @columns is * -1, the number of columns will be chosen automatically * to fill the available area. * * Since: 2.6 */ void gtk_icon_view_set_columns (GtkIconView *icon_view, gint columns) { g_return_if_fail (GTK_IS_ICON_VIEW (icon_view)); if (icon_view->priv->columns != columns) { icon_view->priv->columns = columns; gtk_icon_view_stop_editing (icon_view, TRUE); gtk_icon_view_queue_layout (icon_view); g_object_notify (G_OBJECT (icon_view), "columns"); } } /** * gtk_icon_view_get_columns: * @icon_view: a #GtkIconView * * Returns the value of the ::columns property. * * Return value: the number of columns, or -1 * * Since: 2.6 */ gint gtk_icon_view_get_columns (GtkIconView *icon_view) { g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1); return icon_view->priv->columns; } /** * gtk_icon_view_set_item_width: * @icon_view: a #GtkIconView * @item_width: the width for each item * * Sets the ::item-width property which specifies the width * to use for each item. If it is set to -1, the icon view will * automatically determine a suitable item size. * * Since: 2.6 */ void gtk_icon_view_set_item_width (GtkIconView *icon_view, gint item_width) { g_return_if_fail (GTK_IS_ICON_VIEW (icon_view)); if (icon_view->priv->item_width != item_width) { icon_view->priv->item_width = item_width; gtk_icon_view_stop_editing (icon_view, TRUE); gtk_icon_view_invalidate_sizes (icon_view); gtk_icon_view_queue_layout (icon_view); update_text_cell (icon_view); g_object_notify (G_OBJECT (icon_view), "item-width"); } } /** * gtk_icon_view_get_item_width: * @icon_view: a #GtkIconView * * Returns the value of the ::item-width property. * * Return value: the width of a single item, or -1 * * Since: 2.6 */ gint gtk_icon_view_get_item_width (GtkIconView *icon_view) { g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1); return icon_view->priv->item_width; } /** * gtk_icon_view_set_spacing: * @icon_view: a #GtkIconView * @spacing: the spacing * * Sets the ::spacing property which specifies the space * which is inserted between the cells (i.e. the icon and * the text) of an item. * * Since: 2.6 */ void gtk_icon_view_set_spacing (GtkIconView *icon_view, gint spacing) { g_return_if_fail (GTK_IS_ICON_VIEW (icon_view)); if (icon_view->priv->spacing != spacing) { icon_view->priv->spacing = spacing; gtk_icon_view_stop_editing (icon_view, TRUE); gtk_icon_view_invalidate_sizes (icon_view); gtk_icon_view_queue_layout (icon_view); g_object_notify (G_OBJECT (icon_view), "spacing"); } } /** * gtk_icon_view_get_spacing: * @icon_view: a #GtkIconView * * Returns the value of the ::spacing property. * * Return value: the space between cells * * Since: 2.6 */ gint gtk_icon_view_get_spacing (GtkIconView *icon_view) { g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1); return icon_view->priv->spacing; } /** * gtk_icon_view_set_row_spacing: * @icon_view: a #GtkIconView * @row_spacing: the row spacing * * Sets the ::row-spacing property which specifies the space * which is inserted between the rows of the icon view. * * Since: 2.6 */ void gtk_icon_view_set_row_spacing (GtkIconView *icon_view, gint row_spacing) { g_return_if_fail (GTK_IS_ICON_VIEW (icon_view)); if (icon_view->priv->row_spacing != row_spacing) { icon_view->priv->row_spacing = row_spacing; gtk_icon_view_stop_editing (icon_view, TRUE); gtk_icon_view_invalidate_sizes (icon_view); gtk_icon_view_queue_layout (icon_view); g_object_notify (G_OBJECT (icon_view), "row-spacing"); } } /** * gtk_icon_view_get_row_spacing: * @icon_view: a #GtkIconView * * Returns the value of the ::row-spacing property. * * Return value: the space between rows * * Since: 2.6 */ gint gtk_icon_view_get_row_spacing (GtkIconView *icon_view) { g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1); return icon_view->priv->row_spacing; } /** * gtk_icon_view_set_column_spacing: * @icon_view: a #GtkIconView * @column_spacing: the column spacing * * Sets the ::column-spacing property which specifies the space * which is inserted between the columns of the icon view. * * Since: 2.6 */ void gtk_icon_view_set_column_spacing (GtkIconView *icon_view, gint column_spacing) { g_return_if_fail (GTK_IS_ICON_VIEW (icon_view)); if (icon_view->priv->column_spacing != column_spacing) { icon_view->priv->column_spacing = column_spacing; gtk_icon_view_stop_editing (icon_view, TRUE); gtk_icon_view_invalidate_sizes (icon_view); gtk_icon_view_queue_layout (icon_view); g_object_notify (G_OBJECT (icon_view), "column-spacing"); } } /** * gtk_icon_view_get_column_spacing: * @icon_view: a #GtkIconView * * Returns the value of the ::column-spacing property. * * Return value: the space between columns * * Since: 2.6 */ gint gtk_icon_view_get_column_spacing (GtkIconView *icon_view) { g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1); return icon_view->priv->column_spacing; } /** * gtk_icon_view_set_margin: * @icon_view: a #GtkIconView * @margin: the margin * * Sets the ::margin property which specifies the space * which is inserted at the top, bottom, left and right * of the icon view. * * Since: 2.6 */ void gtk_icon_view_set_margin (GtkIconView *icon_view, gint margin) { g_return_if_fail (GTK_IS_ICON_VIEW (icon_view)); if (icon_view->priv->margin != margin) { icon_view->priv->margin = margin; gtk_icon_view_stop_editing (icon_view, TRUE); gtk_icon_view_invalidate_sizes (icon_view); gtk_icon_view_queue_layout (icon_view); g_object_notify (G_OBJECT (icon_view), "margin"); } } /** * gtk_icon_view_get_margin: * @icon_view: a #GtkIconView * * Returns the value of the ::margin property. * * Return value: the space at the borders * * Since: 2.6 */ gint gtk_icon_view_get_margin (GtkIconView *icon_view) { g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), -1); return icon_view->priv->margin; } /* 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 (GdkDragContext *context, GdkDragAction suggested_action) { g_object_set_data (G_OBJECT (context), I_("gtk-icon-view-status-pending"), GINT_TO_POINTER (suggested_action)); } static GdkDragAction get_status_pending (GdkDragContext *context) { return GPOINTER_TO_INT (g_object_get_data (G_OBJECT (context), "gtk-icon-view-status-pending")); } static void unset_reorderable (GtkIconView *icon_view) { if (icon_view->priv->reorderable) { icon_view->priv->reorderable = FALSE; g_object_notify (G_OBJECT (icon_view), "reorderable"); } } static void clear_source_info (GtkIconView *icon_view) { if (icon_view->priv->source_targets) gtk_target_list_unref (icon_view->priv->source_targets); icon_view->priv->source_targets = NULL; icon_view->priv->source_set = FALSE; } static void clear_dest_info (GtkIconView *icon_view) { if (icon_view->priv->dest_targets) gtk_target_list_unref (icon_view->priv->dest_targets); icon_view->priv->dest_targets = NULL; icon_view->priv->dest_set = FALSE; } static void set_source_row (GdkDragContext *context, GtkTreeModel *model, GtkTreePath *source_row) { if (source_row) g_object_set_data_full (G_OBJECT (context), I_("gtk-icon-view-source-row"), gtk_tree_row_reference_new (model, source_row), (GDestroyNotify) gtk_tree_row_reference_free); else g_object_set_data_full (G_OBJECT (context), I_("gtk-icon-view-source-row"), NULL, NULL); } static GtkTreePath* get_source_row (GdkDragContext *context) { GtkTreeRowReference *ref; ref = g_object_get_data (G_OBJECT (context), "gtk-icon-view-source-row"); if (ref) return gtk_tree_row_reference_get_path (ref); else return NULL; } typedef struct { GtkTreeRowReference *dest_row; gboolean empty_view_drop; gboolean drop_append_mode; } DestRow; static void dest_row_free (gpointer data) { DestRow *dr = (DestRow *)data; gtk_tree_row_reference_free (dr->dest_row); g_free (dr); } static void set_dest_row (GdkDragContext *context, GtkTreeModel *model, GtkTreePath *dest_row, gboolean empty_view_drop, gboolean drop_append_mode) { DestRow *dr; if (!dest_row) { g_object_set_data_full (G_OBJECT (context), I_("gtk-icon-view-dest-row"), NULL, NULL); return; } dr = g_new0 (DestRow, 1); dr->dest_row = gtk_tree_row_reference_new (model, dest_row); dr->empty_view_drop = empty_view_drop; dr->drop_append_mode = drop_append_mode; g_object_set_data_full (G_OBJECT (context), I_("gtk-icon-view-dest-row"), dr, (GDestroyNotify) dest_row_free); } static GtkTreePath* get_dest_row (GdkDragContext *context) { DestRow *dr; dr = g_object_get_data (G_OBJECT (context), "gtk-icon-view-dest-row"); if (dr) { GtkTreePath *path = NULL; 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; } 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 GtkIconView 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 gtkiconview.c to get an idea what " "your handler should do. (gtkiconview.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_scroll_timeout (GtkIconView *icon_view) { if (icon_view->priv->scroll_timeout_id != 0) { g_source_remove (icon_view->priv->scroll_timeout_id); icon_view->priv->scroll_timeout_id = 0; } } static void gtk_icon_view_autoscroll (GtkIconView *icon_view) { gint px, py, x, y, width, height; gint hoffset, voffset; gfloat value; gdk_window_get_pointer (GTK_WIDGET (icon_view)->window, &px, &py, NULL); gdk_window_get_geometry (GTK_WIDGET (icon_view)->window, &x, &y, &width, &height, NULL); /* see if we are near the edge. */ voffset = py - (y + 2 * SCROLL_EDGE_SIZE); if (voffset > 0) voffset = MAX (py - (y + height - 2 * SCROLL_EDGE_SIZE), 0); hoffset = px - (x + 2 * SCROLL_EDGE_SIZE); if (hoffset > 0) hoffset = MAX (px - (x + width - 2 * SCROLL_EDGE_SIZE), 0); if (voffset != 0) { value = CLAMP (icon_view->priv->vadjustment->value + voffset, icon_view->priv->vadjustment->lower, icon_view->priv->vadjustment->upper - icon_view->priv->vadjustment->page_size); gtk_adjustment_set_value (icon_view->priv->vadjustment, value); } if (hoffset != 0) { value = CLAMP (icon_view->priv->hadjustment->value + hoffset, icon_view->priv->hadjustment->lower, icon_view->priv->hadjustment->upper - icon_view->priv->hadjustment->page_size); gtk_adjustment_set_value (icon_view->priv->hadjustment, value); } } static gboolean drag_scroll_timeout (gpointer data) { GtkIconView *icon_view = GTK_ICON_VIEW (data); gtk_icon_view_autoscroll (icon_view); return TRUE; } static gboolean set_destination (GtkIconView *icon_view, GdkDragContext *context, gint x, gint y, GdkDragAction *suggested_action, GdkAtom *target) { GtkWidget *widget; GtkTreePath *path = NULL; GtkIconViewDropPosition pos; GtkIconViewDropPosition old_pos; GtkTreePath *old_dest_path = NULL; gboolean can_drop = FALSE; widget = GTK_WIDGET (icon_view); *suggested_action = 0; *target = GDK_NONE; if (!icon_view->priv->dest_set) { /* someone unset us as a drag dest, note that if * we return FALSE drag_leave isn't called */ gtk_icon_view_set_drag_dest_item (icon_view, NULL, GTK_ICON_VIEW_DROP_LEFT); remove_scroll_timeout (GTK_ICON_VIEW (widget)); return FALSE; /* no longer a drop site */ } *target = gtk_drag_dest_find_target (widget, context, icon_view->priv->dest_targets); if (*target == GDK_NONE) return FALSE; if (!gtk_icon_view_get_dest_item_at_pos (icon_view, x, y, &path, &pos)) { gint n_children; GtkTreeModel *model; /* the row got dropped on empty space, let's setup a special case */ if (path) gtk_tree_path_free (path); model = gtk_icon_view_get_model (icon_view); n_children = gtk_tree_model_iter_n_children (model, NULL); if (n_children) { pos = GTK_ICON_VIEW_DROP_BELOW; path = gtk_tree_path_new_from_indices (n_children - 1, -1); } else { pos = GTK_ICON_VIEW_DROP_ABOVE; path = gtk_tree_path_new_from_indices (0, -1); } can_drop = TRUE; goto out; } g_assert (path); gtk_icon_view_get_drag_dest_item (icon_view, &old_dest_path, &old_pos); 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) { GtkWidget *source_widget; *suggested_action = context->suggested_action; source_widget = gtk_drag_get_source_widget (context); if (source_widget == widget) { /* Default to MOVE, unless the user has * pressed ctrl or shift to affect available actions */ if ((context->actions & GDK_ACTION_MOVE) != 0) *suggested_action = GDK_ACTION_MOVE; } gtk_icon_view_set_drag_dest_item (GTK_ICON_VIEW (widget), path, pos); } else { /* can't drop here */ gtk_icon_view_set_drag_dest_item (GTK_ICON_VIEW (widget), NULL, GTK_ICON_VIEW_DROP_LEFT); } if (path) gtk_tree_path_free (path); return TRUE; } static GtkTreePath* get_logical_destination (GtkIconView *icon_view, gboolean *drop_append_mode) { /* adjust path to point to the row the drop goes in front of */ GtkTreePath *path = NULL; GtkIconViewDropPosition pos; *drop_append_mode = FALSE; gtk_icon_view_get_drag_dest_item (icon_view, &path, &pos); if (path == NULL) return NULL; if (pos == GTK_ICON_VIEW_DROP_RIGHT || pos == GTK_ICON_VIEW_DROP_BELOW) { GtkTreeIter iter; GtkTreeModel *model = icon_view->priv->model; if (!gtk_tree_model_get_iter (model, &iter, path) || !gtk_tree_model_iter_next (model, &iter)) *drop_append_mode = TRUE; else { *drop_append_mode = FALSE; gtk_tree_path_next (path); } } return path; } static gboolean gtk_icon_view_maybe_begin_drag (GtkIconView *icon_view, GdkEventMotion *event) { GdkDragContext *context; GtkTreePath *path = NULL; gint button; GtkTreeModel *model; gboolean retval = FALSE; if (!icon_view->priv->source_set) goto out; if (icon_view->priv->pressed_button < 0) goto out; if (!gtk_drag_check_threshold (GTK_WIDGET (icon_view), icon_view->priv->press_start_x, icon_view->priv->press_start_y, event->x, event->y)) goto out; model = gtk_icon_view_get_model (icon_view); if (model == NULL) goto out; button = icon_view->priv->pressed_button; icon_view->priv->pressed_button = -1; path = gtk_icon_view_get_path_at_pos (icon_view, icon_view->priv->press_start_x, icon_view->priv->press_start_y); 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; /* FIXME Check whether we're a start button, if not return FALSE and * free path */ /* Now we can begin the drag */ retval = TRUE; context = gtk_drag_begin (GTK_WIDGET (icon_view), icon_view->priv->source_targets, icon_view->priv->source_actions, button, (GdkEvent*)event); set_source_row (context, model, path); out: if (path) gtk_tree_path_free (path); return retval; } /* Source side drag signals */ static void gtk_icon_view_drag_begin (GtkWidget *widget, GdkDragContext *context) { GtkIconView *icon_view; GtkIconViewItem *item; GdkPixmap *icon; gint x, y; GtkTreePath *path; icon_view = GTK_ICON_VIEW (widget); /* if the user uses a custom DnD impl, we don't set the icon here */ if (!icon_view->priv->dest_set && !icon_view->priv->source_set) return; item = gtk_icon_view_get_item_at_coords (icon_view, icon_view->priv->press_start_x, icon_view->priv->press_start_y, TRUE, NULL); g_return_if_fail (item != NULL); x = icon_view->priv->press_start_x - item->x + 1; y = icon_view->priv->press_start_y - item->y + 1; path = gtk_tree_path_new_from_indices (item->index, -1); icon = gtk_icon_view_create_drag_icon (icon_view, path); gtk_tree_path_free (path); gtk_drag_set_icon_pixmap (context, gdk_drawable_get_colormap (icon), icon, NULL, x, y); g_object_unref (icon); } static void gtk_icon_view_drag_end (GtkWidget *widget, GdkDragContext *context) { /* do nothing */ } static void gtk_icon_view_drag_data_get (GtkWidget *widget, GdkDragContext *context, GtkSelectionData *selection_data, guint info, guint time) { GtkIconView *icon_view; GtkTreeModel *model; GtkTreePath *source_row; icon_view = GTK_ICON_VIEW (widget); model = gtk_icon_view_get_model (icon_view); if (model == NULL) return; if (!icon_view->priv->dest_set) return; source_row = get_source_row (context); if (source_row == NULL) return; /* 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) && gtk_tree_drag_source_drag_data_get (GTK_TREE_DRAG_SOURCE (model), source_row, selection_data)) goto done; /* If drag_data_get does nothing, try providing row data. */ if (selection_data->target == gdk_atom_intern_static_string ("GTK_TREE_MODEL_ROW")) gtk_tree_set_row_drag_data (selection_data, model, source_row); done: gtk_tree_path_free (source_row); } static void gtk_icon_view_drag_data_delete (GtkWidget *widget, GdkDragContext *context) { GtkTreeModel *model; GtkIconView *icon_view; GtkTreePath *source_row; icon_view = GTK_ICON_VIEW (widget); model = gtk_icon_view_get_model (icon_view); if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_SOURCE, "drag_data_delete")) return; if (!icon_view->priv->dest_set) return; source_row = get_source_row (context); 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); set_source_row (context, NULL, NULL); } /* Target side drag signals */ static void gtk_icon_view_drag_leave (GtkWidget *widget, GdkDragContext *context, guint time) { GtkIconView *icon_view; icon_view = GTK_ICON_VIEW (widget); /* unset any highlight row */ gtk_icon_view_set_drag_dest_item (icon_view, NULL, GTK_ICON_VIEW_DROP_LEFT); remove_scroll_timeout (icon_view); } static gboolean gtk_icon_view_drag_motion (GtkWidget *widget, GdkDragContext *context, gint x, gint y, guint time) { GtkTreePath *path = NULL; GtkIconViewDropPosition pos; GtkIconView *icon_view; GdkDragAction suggested_action = 0; GdkAtom target; gboolean empty; icon_view = GTK_ICON_VIEW (widget); if (!set_destination (icon_view, context, x, y, &suggested_action, &target)) return FALSE; gtk_icon_view_get_drag_dest_item (icon_view, &path, &pos); /* we only know this *after* set_desination_row */ empty = icon_view->priv->empty_view_drop; if (path == NULL && !empty) { /* Can't drop here. */ gdk_drag_status (context, 0, time); } else { if (icon_view->priv->scroll_timeout_id == 0) { icon_view->priv->scroll_timeout_id = gdk_threads_add_timeout (50, drag_scroll_timeout, icon_view); } if (target == gdk_atom_intern_static_string ("GTK_TREE_MODEL_ROW")) { /* Request data so we can use the source row when * determining whether to accept the drop */ set_status_pending (context, suggested_action); gtk_drag_get_data (widget, context, target, time); } else { set_status_pending (context, 0); gdk_drag_status (context, suggested_action, time); } } if (path) gtk_tree_path_free (path); return TRUE; } static gboolean gtk_icon_view_drag_drop (GtkWidget *widget, GdkDragContext *context, gint x, gint y, guint time) { GtkIconView *icon_view; GtkTreePath *path; GdkDragAction suggested_action = 0; GdkAtom target = GDK_NONE; GtkTreeModel *model; gboolean drop_append_mode; icon_view = GTK_ICON_VIEW (widget); model = gtk_icon_view_get_model (icon_view); remove_scroll_timeout (GTK_ICON_VIEW (widget)); if (!icon_view->priv->dest_set) return FALSE; if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag_drop")) return FALSE; if (!set_destination (icon_view, context, x, y, &suggested_action, &target)) return FALSE; path = get_logical_destination (icon_view, &drop_append_mode); if (target != GDK_NONE && path != NULL) { /* in case a motion had requested drag data, change things so we * treat drag data receives as a drop. */ set_status_pending (context, 0); set_dest_row (context, model, path, icon_view->priv->empty_view_drop, drop_append_mode); } if (path) gtk_tree_path_free (path); /* Unset this thing */ gtk_icon_view_set_drag_dest_item (icon_view, NULL, GTK_ICON_VIEW_DROP_LEFT); if (target != GDK_NONE) { gtk_drag_get_data (widget, context, target, time); return TRUE; } else return FALSE; } static void gtk_icon_view_drag_data_received (GtkWidget *widget, GdkDragContext *context, gint x, gint y, GtkSelectionData *selection_data, guint info, guint time) { GtkTreePath *path; gboolean accepted = FALSE; GtkTreeModel *model; GtkIconView *icon_view; GtkTreePath *dest_row; GdkDragAction suggested_action; gboolean drop_append_mode; icon_view = GTK_ICON_VIEW (widget); model = gtk_icon_view_get_model (icon_view); if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag_data_received")) return; if (!icon_view->priv->dest_set) return; suggested_action = get_status_pending (context); 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_destination (icon_view, &drop_append_mode); if (path == NULL) suggested_action = 0; if (suggested_action) { if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model), path, selection_data)) suggested_action = 0; } gdk_drag_status (context, suggested_action, time); 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_icon_view_set_drag_dest_item (icon_view, NULL, GTK_ICON_VIEW_DROP_LEFT); return; } dest_row = get_dest_row (context); if (dest_row == NULL) return; if (selection_data->length >= 0) { if (gtk_tree_drag_dest_drag_data_received (GTK_TREE_DRAG_DEST (model), dest_row, selection_data)) accepted = TRUE; } gtk_drag_finish (context, accepted, (context->action == GDK_ACTION_MOVE), time); gtk_tree_path_free (dest_row); /* drop dest_row */ set_dest_row (context, NULL, NULL, FALSE, FALSE); } /* Drag-and-Drop support */ /** * gtk_icon_view_enable_model_drag_source: * @icon_view: a #GtkIconTreeView * @start_button_mask: Mask of allowed buttons to start drag * @targets: the table of targets that the drag will support * @n_targets: the number of items in @targets * @actions: the bitmask of possible actions for a drag from this * widget * * Turns @icon_view into a drag source for automatic DND. * * Since: 2.8 **/ void gtk_icon_view_enable_model_drag_source (GtkIconView *icon_view, GdkModifierType start_button_mask, const GtkTargetEntry *targets, gint n_targets, GdkDragAction actions) { g_return_if_fail (GTK_IS_ICON_VIEW (icon_view)); gtk_drag_source_set (GTK_WIDGET (icon_view), 0, NULL, 0, actions); clear_source_info (icon_view); icon_view->priv->start_button_mask = start_button_mask; icon_view->priv->source_targets = gtk_target_list_new (targets, n_targets); icon_view->priv->source_actions = actions; icon_view->priv->source_set = TRUE; unset_reorderable (icon_view); } /** * gtk_icon_view_enable_model_drag_dest: * @icon_view: a #GtkIconView * @targets: the table of targets that the drag will support * @n_targets: the number of items in @targets * @actions: the bitmask of possible actions for a drag to this * widget * * Turns @icon_view into a drop destination for automatic DND. * * Since: 2.8 **/ void gtk_icon_view_enable_model_drag_dest (GtkIconView *icon_view, const GtkTargetEntry *targets, gint n_targets, GdkDragAction actions) { g_return_if_fail (GTK_IS_ICON_VIEW (icon_view)); gtk_drag_dest_set (GTK_WIDGET (icon_view), 0, NULL, 0, actions); clear_dest_info (icon_view); icon_view->priv->dest_targets = gtk_target_list_new (targets, n_targets); icon_view->priv->dest_actions = actions; icon_view->priv->dest_set = TRUE; unset_reorderable (icon_view); } /** * gtk_icon_view_unset_model_drag_source: * @icon_view: a #GtkIconView * * Undoes the effect of gtk_icon_view_enable_model_drag_source(). * * Since: 2.8 **/ void gtk_icon_view_unset_model_drag_source (GtkIconView *icon_view) { g_return_if_fail (GTK_IS_ICON_VIEW (icon_view)); if (icon_view->priv->source_set) { gtk_drag_source_unset (GTK_WIDGET (icon_view)); clear_source_info (icon_view); } unset_reorderable (icon_view); } /** * gtk_icon_view_unset_model_drag_dest: * @icon_view: a #GtkIconView * * Undoes the effect of gtk_icon_view_enable_model_drag_dest(). * * Since: 2.8 **/ void gtk_icon_view_unset_model_drag_dest (GtkIconView *icon_view) { g_return_if_fail (GTK_IS_ICON_VIEW (icon_view)); if (icon_view->priv->dest_set) { gtk_drag_dest_unset (GTK_WIDGET (icon_view)); clear_dest_info (icon_view); } unset_reorderable (icon_view); } /* These are useful to implement your own custom stuff. */ /** * gtk_icon_view_set_drag_dest_item: * @icon_view: a #GtkIconView * @path: The path of the item to highlight, or %NULL. * @pos: Specifies where to drop, relative to the item * * Sets the item that is highlighted for feedback. * * Since: 2.8 */ void gtk_icon_view_set_drag_dest_item (GtkIconView *icon_view, GtkTreePath *path, GtkIconViewDropPosition pos) { /* Note; this function is exported to allow a custom DND * implementation, so it can't touch TreeViewDragInfo */ g_return_if_fail (GTK_IS_ICON_VIEW (icon_view)); if (icon_view->priv->dest_item) { GtkTreePath *current_path; current_path = gtk_tree_row_reference_get_path (icon_view->priv->dest_item); gtk_tree_row_reference_free (icon_view->priv->dest_item); icon_view->priv->dest_item = NULL; gtk_icon_view_queue_draw_path (icon_view, current_path); gtk_tree_path_free (current_path); } /* special case a drop on an empty model */ icon_view->priv->empty_view_drop = FALSE; 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 (icon_view->priv->model, NULL); if (n_children == 0) icon_view->priv->empty_view_drop = TRUE; } icon_view->priv->dest_pos = pos; if (path) { icon_view->priv->dest_item = gtk_tree_row_reference_new_proxy (G_OBJECT (icon_view), icon_view->priv->model, path); gtk_icon_view_queue_draw_path (icon_view, path); } } /** * gtk_icon_view_get_drag_dest_item: * @icon_view: a #GtkIconView * @path: Return location for the path of the highlighted item, or %NULL. * @pos: Return location for the drop position, or %NULL * * Gets information about the item that is highlighted for feedback. * * Since: 2.8 **/ void gtk_icon_view_get_drag_dest_item (GtkIconView *icon_view, GtkTreePath **path, GtkIconViewDropPosition *pos) { g_return_if_fail (GTK_IS_ICON_VIEW (icon_view)); if (path) { if (icon_view->priv->dest_item) *path = gtk_tree_row_reference_get_path (icon_view->priv->dest_item); else *path = NULL; } if (pos) *pos = icon_view->priv->dest_pos; } /** * gtk_icon_view_get_dest_item_at_pos: * @icon_view: a #GtkIconView * @drag_x: the position to determine the destination item for * @drag_y: the position to determine the destination item for * @path: Return location for the path of the item, or %NULL. * @pos: Return location for the drop position, or %NULL * * Determines the destination item for a given position. * * Return value: whether there is an item at the given position. * * Since: 2.8 **/ gboolean gtk_icon_view_get_dest_item_at_pos (GtkIconView *icon_view, gint drag_x, gint drag_y, GtkTreePath **path, GtkIconViewDropPosition *pos) { GtkIconViewItem *item; /* Note; this function is exported to allow a custom DND * implementation, so it can't touch TreeViewDragInfo */ g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), FALSE); g_return_val_if_fail (drag_x >= 0, FALSE); g_return_val_if_fail (drag_y >= 0, FALSE); g_return_val_if_fail (icon_view->priv->bin_window != NULL, FALSE); if (path) *path = NULL; item = gtk_icon_view_get_item_at_coords (icon_view, drag_x + icon_view->priv->hadjustment->value, drag_y + icon_view->priv->vadjustment->value, FALSE, NULL); if (item == NULL) return FALSE; if (path) *path = gtk_tree_path_new_from_indices (item->index, -1); if (pos) { if (drag_x < item->x + item->width / 4) *pos = GTK_ICON_VIEW_DROP_LEFT; else if (drag_x > item->x + item->width * 3 / 4) *pos = GTK_ICON_VIEW_DROP_RIGHT; else if (drag_y < item->y + item->height / 4) *pos = GTK_ICON_VIEW_DROP_ABOVE; else if (drag_y > item->y + item->height * 3 / 4) *pos = GTK_ICON_VIEW_DROP_BELOW; else *pos = GTK_ICON_VIEW_DROP_INTO; } return TRUE; } /** * gtk_icon_view_create_drag_icon: * @icon_view: a #GtkIconView * @path: a #GtkTreePath in @icon_view * * Creates a #GdkPixmap representation of the item at @path. * This image is used for a drag icon. * * Return value: a newly-allocated pixmap of the drag icon. * * Since: 2.8 **/ GdkPixmap * gtk_icon_view_create_drag_icon (GtkIconView *icon_view, GtkTreePath *path) { GtkWidget *widget; cairo_t *cr; GdkPixmap *drawable; GList *l; gint index; GdkRectangle area; g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), NULL); g_return_val_if_fail (path != NULL, NULL); widget = GTK_WIDGET (icon_view); if (!GTK_WIDGET_REALIZED (widget)) return NULL; index = gtk_tree_path_get_indices (path)[0]; for (l = icon_view->priv->items; l; l = l->next) { GtkIconViewItem *item = l->data; if (index == item->index) { drawable = gdk_pixmap_new (icon_view->priv->bin_window, item->width + 2, item->height + 2, -1); cr = gdk_cairo_create (drawable); cairo_set_line_width (cr, 1.); gdk_cairo_set_source_color (cr, &widget->style->base[GTK_WIDGET_STATE (widget)]); cairo_rectangle (cr, 0, 0, item->width + 2, item->height + 2); cairo_fill (cr); area.x = 0; area.y = 0; area.width = item->width; area.height = item->height; gtk_icon_view_paint_item (icon_view, cr, item, &area, drawable, 1, 1, FALSE); cairo_set_source_rgb (cr, 0.0, 0.0, 0.0); /* black */ cairo_rectangle (cr, 0.5, 0.5, item->width + 1, item->height + 1); cairo_stroke (cr); cairo_destroy (cr); return drawable; } } return NULL; } /** * gtk_icon_view_get_reorderable: * @icon_view: a #GtkIconView * * Retrieves whether the user can reorder the list via drag-and-drop. * See gtk_icon_view_set_reorderable(). * * Return value: %TRUE if the list can be reordered. * * Since: 2.8 **/ gboolean gtk_icon_view_get_reorderable (GtkIconView *icon_view) { g_return_val_if_fail (GTK_IS_ICON_VIEW (icon_view), FALSE); return icon_view->priv->reorderable; } static const GtkTargetEntry item_targets[] = { { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_WIDGET, 0 } }; /** * gtk_icon_view_set_reorderable: * @icon_view: A #GtkIconView. * @reorderable: %TRUE, if the list of items 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 * row_inserted and row_deleted signals. * * 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. * * Since: 2.8 **/ void gtk_icon_view_set_reorderable (GtkIconView *icon_view, gboolean reorderable) { g_return_if_fail (GTK_IS_ICON_VIEW (icon_view)); reorderable = reorderable != FALSE; if (icon_view->priv->reorderable == reorderable) return; if (reorderable) { gtk_icon_view_enable_model_drag_source (icon_view, GDK_BUTTON1_MASK, item_targets, G_N_ELEMENTS (item_targets), GDK_ACTION_MOVE); gtk_icon_view_enable_model_drag_dest (icon_view, item_targets, G_N_ELEMENTS (item_targets), GDK_ACTION_MOVE); } else { gtk_icon_view_unset_model_drag_source (icon_view); gtk_icon_view_unset_model_drag_dest (icon_view); } icon_view->priv->reorderable = reorderable; g_object_notify (G_OBJECT (icon_view), "reorderable"); } /* Accessibility Support */ static gpointer accessible_parent_class; static gpointer accessible_item_parent_class; static GQuark accessible_private_data_quark = 0; #define GTK_TYPE_ICON_VIEW_ITEM_ACCESSIBLE (gtk_icon_view_item_accessible_get_type ()) #define GTK_ICON_VIEW_ITEM_ACCESSIBLE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_ICON_VIEW_ITEM_ACCESSIBLE, GtkIconViewItemAccessible)) #define GTK_IS_ICON_VIEW_ITEM_ACCESSIBLE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_ICON_VIEW_ITEM_ACCESSIBLE)) static GType gtk_icon_view_item_accessible_get_type (void); enum { ACTION_ACTIVATE, LAST_ACTION }; typedef struct { AtkObject parent; GtkIconViewItem *item; GtkWidget *widget; AtkStateSet *state_set; gchar *text; GtkTextBuffer *text_buffer; gchar *action_descriptions[LAST_ACTION]; gchar *image_description; guint action_idle_handler; } GtkIconViewItemAccessible; static const gchar *const gtk_icon_view_item_accessible_action_names[] = { "activate", NULL }; static const gchar *const gtk_icon_view_item_accessible_action_descriptions[] = { "Activate item", NULL }; typedef struct _GtkIconViewItemAccessibleClass { AtkObjectClass parent_class; } GtkIconViewItemAccessibleClass; static gboolean gtk_icon_view_item_accessible_is_showing (GtkIconViewItemAccessible *item); static gboolean gtk_icon_view_item_accessible_idle_do_action (gpointer data) { GtkIconViewItemAccessible *item; GtkIconView *icon_view; GtkTreePath *path; item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (data); item->action_idle_handler = 0; if (item->widget != NULL) { icon_view = GTK_ICON_VIEW (item->widget); path = gtk_tree_path_new_from_indices (item->item->index, -1); gtk_icon_view_item_activated (icon_view, path); gtk_tree_path_free (path); } return FALSE; } static gboolean gtk_icon_view_item_accessible_action_do_action (AtkAction *action, gint i) { GtkIconViewItemAccessible *item; if (i < 0 || i >= LAST_ACTION) return FALSE; item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (action); if (!GTK_IS_ICON_VIEW (item->widget)) return FALSE; if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT)) return FALSE; switch (i) { case ACTION_ACTIVATE: if (!item->action_idle_handler) item->action_idle_handler = gdk_threads_add_idle (gtk_icon_view_item_accessible_idle_do_action, item); break; default: g_assert_not_reached (); return FALSE; } return TRUE; } static gint gtk_icon_view_item_accessible_action_get_n_actions (AtkAction *action) { return LAST_ACTION; } static const gchar * gtk_icon_view_item_accessible_action_get_description (AtkAction *action, gint i) { GtkIconViewItemAccessible *item; if (i < 0 || i >= LAST_ACTION) return NULL; item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (action); if (item->action_descriptions[i]) return item->action_descriptions[i]; else return gtk_icon_view_item_accessible_action_descriptions[i]; } static const gchar * gtk_icon_view_item_accessible_action_get_name (AtkAction *action, gint i) { if (i < 0 || i >= LAST_ACTION) return NULL; return gtk_icon_view_item_accessible_action_names[i]; } static gboolean gtk_icon_view_item_accessible_action_set_description (AtkAction *action, gint i, const gchar *description) { GtkIconViewItemAccessible *item; if (i < 0 || i >= LAST_ACTION) return FALSE; item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (action); if (item->action_descriptions[i]) g_free (item->action_descriptions[i]); item->action_descriptions[i] = g_strdup (description); return TRUE; } static void atk_action_item_interface_init (AtkActionIface *iface) { iface->do_action = gtk_icon_view_item_accessible_action_do_action; iface->get_n_actions = gtk_icon_view_item_accessible_action_get_n_actions; iface->get_description = gtk_icon_view_item_accessible_action_get_description; iface->get_name = gtk_icon_view_item_accessible_action_get_name; iface->set_description = gtk_icon_view_item_accessible_action_set_description; } static const gchar * gtk_icon_view_item_accessible_image_get_image_description (AtkImage *image) { GtkIconViewItemAccessible *item; item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (image); return item->image_description; } static gboolean gtk_icon_view_item_accessible_image_set_image_description (AtkImage *image, const gchar *description) { GtkIconViewItemAccessible *item; item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (image); g_free (item->image_description); item->image_description = g_strdup (item->image_description); return TRUE; } static gboolean get_pixbuf_box (GtkIconView *icon_view, GtkIconViewItem *item, GdkRectangle *box) { GList *l; for (l = icon_view->priv->cell_list; l; l = l->next) { GtkIconViewCellInfo *info = l->data; if (GTK_IS_CELL_RENDERER_PIXBUF (info->cell)) { gtk_icon_view_get_cell_box (icon_view, item, info, box); return TRUE; } } return FALSE; } static gchar * get_text (GtkIconView *icon_view, GtkIconViewItem *item) { GList *l; gchar *text; for (l = icon_view->priv->cell_list; l; l = l->next) { GtkIconViewCellInfo *info = l->data; if (GTK_IS_CELL_RENDERER_TEXT (info->cell)) { g_object_get (info->cell, "text", &text, NULL); return text; } } return NULL; } static void gtk_icon_view_item_accessible_image_get_image_size (AtkImage *image, gint *width, gint *height) { GtkIconViewItemAccessible *item; GdkRectangle box; item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (image); if (!GTK_IS_ICON_VIEW (item->widget)) return; if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT)) return; if (get_pixbuf_box (GTK_ICON_VIEW (item->widget), item->item, &box)) { *width = box.width; *height = box.height; } } static void gtk_icon_view_item_accessible_image_get_image_position (AtkImage *image, gint *x, gint *y, AtkCoordType coord_type) { GtkIconViewItemAccessible *item; GdkRectangle box; item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (image); if (!GTK_IS_ICON_VIEW (item->widget)) return; if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT)) return; atk_component_get_position (ATK_COMPONENT (image), x, y, coord_type); if (get_pixbuf_box (GTK_ICON_VIEW (item->widget), item->item, &box)) { *x+= box.x - item->item->x; *y+= box.y - item->item->y; } } static void atk_image_item_interface_init (AtkImageIface *iface) { iface->get_image_description = gtk_icon_view_item_accessible_image_get_image_description; iface->set_image_description = gtk_icon_view_item_accessible_image_set_image_description; iface->get_image_size = gtk_icon_view_item_accessible_image_get_image_size; iface->get_image_position = gtk_icon_view_item_accessible_image_get_image_position; } static gchar * gtk_icon_view_item_accessible_text_get_text (AtkText *text, gint start_pos, gint end_pos) { GtkIconViewItemAccessible *item; GtkTextIter start, end; GtkTextBuffer *buffer; item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text); if (!GTK_IS_ICON_VIEW (item->widget)) return NULL; if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT)) return NULL; buffer = item->text_buffer; gtk_text_buffer_get_iter_at_offset (buffer, &start, start_pos); if (end_pos < 0) gtk_text_buffer_get_end_iter (buffer, &end); else gtk_text_buffer_get_iter_at_offset (buffer, &end, end_pos); return gtk_text_buffer_get_text (buffer, &start, &end, FALSE); } static gunichar gtk_icon_view_item_accessible_text_get_character_at_offset (AtkText *text, gint offset) { GtkIconViewItemAccessible *item; GtkTextIter start, end; GtkTextBuffer *buffer; gchar *string; gunichar unichar; item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text); if (!GTK_IS_ICON_VIEW (item->widget)) return '\0'; if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT)) return '\0'; buffer = item->text_buffer; if (offset >= gtk_text_buffer_get_char_count (buffer)) return '\0'; gtk_text_buffer_get_iter_at_offset (buffer, &start, offset); end = start; gtk_text_iter_forward_char (&end); string = gtk_text_buffer_get_slice (buffer, &start, &end, FALSE); unichar = g_utf8_get_char (string); g_free(string); return unichar; } #if 0 static void get_pango_text_offsets (PangoLayout *layout, GtkTextBuffer *buffer, gint function, AtkTextBoundary boundary_type, gint offset, gint *start_offset, gint *end_offset, GtkTextIter *start_iter, GtkTextIter *end_iter) { PangoLayoutIter *iter; PangoLayoutLine *line, *prev_line = NULL, *prev_prev_line = NULL; gint index, start_index, end_index; const gchar *text; gboolean found = FALSE; text = pango_layout_get_text (layout); index = g_utf8_offset_to_pointer (text, offset) - text; iter = pango_layout_get_iter (layout); do { line = pango_layout_iter_get_line_readonly (iter); start_index = line->start_index; end_index = start_index + line->length; if (index >= start_index && index <= end_index) { /* * Found line for offset */ switch (function) { case 0: /* * We want the previous line */ if (prev_line) { switch (boundary_type) { case ATK_TEXT_BOUNDARY_LINE_START: end_index = start_index; start_index = prev_line->start_index; break; case ATK_TEXT_BOUNDARY_LINE_END: if (prev_prev_line) start_index = prev_prev_line->start_index + prev_prev_line->length; end_index = prev_line->start_index + prev_line->length; break; default: g_assert_not_reached(); } } else start_index = end_index = 0; break; case 1: switch (boundary_type) { case ATK_TEXT_BOUNDARY_LINE_START: if (pango_layout_iter_next_line (iter)) end_index = pango_layout_iter_get_line_readonly (iter)->start_index; break; case ATK_TEXT_BOUNDARY_LINE_END: if (prev_line) start_index = prev_line->start_index + prev_line->length; break; default: g_assert_not_reached(); } break; case 2: /* * We want the next line */ if (pango_layout_iter_next_line (iter)) { line = pango_layout_iter_get_line_readonly (iter); switch (boundary_type) { case ATK_TEXT_BOUNDARY_LINE_START: start_index = line->start_index; if (pango_layout_iter_next_line (iter)) end_index = pango_layout_iter_get_line_readonly (iter)->start_index; else end_index = start_index + line->length; break; case ATK_TEXT_BOUNDARY_LINE_END: start_index = end_index; end_index = line->start_index + line->length; break; default: g_assert_not_reached(); } } else start_index = end_index; break; } found = TRUE; break; } prev_prev_line = prev_line; prev_line = line; } while (pango_layout_iter_next_line (iter)); if (!found) { start_index = prev_line->start_index + prev_line->length; end_index = start_index; } pango_layout_iter_free (iter); *start_offset = g_utf8_pointer_to_offset (text, text + start_index); *end_offset = g_utf8_pointer_to_offset (text, text + end_index); gtk_text_buffer_get_iter_at_offset (buffer, start_iter, *start_offset); gtk_text_buffer_get_iter_at_offset (buffer, end_iter, *end_offset); } #endif static gchar* gtk_icon_view_item_accessible_text_get_text_before_offset (AtkText *text, gint offset, AtkTextBoundary boundary_type, gint *start_offset, gint *end_offset) { GtkIconViewItemAccessible *item; GtkTextIter start, end; GtkTextBuffer *buffer; #if 0 GtkIconView *icon_view; #endif item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text); if (!GTK_IS_ICON_VIEW (item->widget)) return NULL; if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT)) return NULL; buffer = item->text_buffer; if (!gtk_text_buffer_get_char_count (buffer)) { *start_offset = 0; *end_offset = 0; return g_strdup (""); } gtk_text_buffer_get_iter_at_offset (buffer, &start, offset); end = start; switch (boundary_type) { case ATK_TEXT_BOUNDARY_CHAR: gtk_text_iter_backward_char(&start); break; case ATK_TEXT_BOUNDARY_WORD_START: if (!gtk_text_iter_starts_word (&start)) gtk_text_iter_backward_word_start (&start); end = start; gtk_text_iter_backward_word_start(&start); break; case ATK_TEXT_BOUNDARY_WORD_END: if (gtk_text_iter_inside_word (&start) && !gtk_text_iter_starts_word (&start)) gtk_text_iter_backward_word_start (&start); while (!gtk_text_iter_ends_word (&start)) { if (!gtk_text_iter_backward_char (&start)) break; } end = start; gtk_text_iter_backward_word_start(&start); while (!gtk_text_iter_ends_word (&start)) { if (!gtk_text_iter_backward_char (&start)) break; } break; case ATK_TEXT_BOUNDARY_SENTENCE_START: if (!gtk_text_iter_starts_sentence (&start)) gtk_text_iter_backward_sentence_start (&start); end = start; gtk_text_iter_backward_sentence_start (&start); break; case ATK_TEXT_BOUNDARY_SENTENCE_END: if (gtk_text_iter_inside_sentence (&start) && !gtk_text_iter_starts_sentence (&start)) gtk_text_iter_backward_sentence_start (&start); while (!gtk_text_iter_ends_sentence (&start)) { if (!gtk_text_iter_backward_char (&start)) break; } end = start; gtk_text_iter_backward_sentence_start (&start); while (!gtk_text_iter_ends_sentence (&start)) { if (!gtk_text_iter_backward_char (&start)) break; } break; case ATK_TEXT_BOUNDARY_LINE_START: case ATK_TEXT_BOUNDARY_LINE_END: #if 0 icon_view = GTK_ICON_VIEW (item->widget); /* FIXME we probably have to use GailTextCell to salvage this */ gtk_icon_view_update_item_text (icon_view, item->item); get_pango_text_offsets (icon_view->priv->layout, buffer, 0, boundary_type, offset, start_offset, end_offset, &start, &end); #endif break; } *start_offset = gtk_text_iter_get_offset (&start); *end_offset = gtk_text_iter_get_offset (&end); return gtk_text_buffer_get_text (buffer, &start, &end, FALSE); } static gchar* gtk_icon_view_item_accessible_text_get_text_at_offset (AtkText *text, gint offset, AtkTextBoundary boundary_type, gint *start_offset, gint *end_offset) { GtkIconViewItemAccessible *item; GtkTextIter start, end; GtkTextBuffer *buffer; #if 0 GtkIconView *icon_view; #endif item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text); if (!GTK_IS_ICON_VIEW (item->widget)) return NULL; if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT)) return NULL; buffer = item->text_buffer; if (!gtk_text_buffer_get_char_count (buffer)) { *start_offset = 0; *end_offset = 0; return g_strdup (""); } gtk_text_buffer_get_iter_at_offset (buffer, &start, offset); end = start; switch (boundary_type) { case ATK_TEXT_BOUNDARY_CHAR: gtk_text_iter_forward_char (&end); break; case ATK_TEXT_BOUNDARY_WORD_START: if (!gtk_text_iter_starts_word (&start)) gtk_text_iter_backward_word_start (&start); if (gtk_text_iter_inside_word (&end)) gtk_text_iter_forward_word_end (&end); while (!gtk_text_iter_starts_word (&end)) { if (!gtk_text_iter_forward_char (&end)) break; } break; case ATK_TEXT_BOUNDARY_WORD_END: if (gtk_text_iter_inside_word (&start) && !gtk_text_iter_starts_word (&start)) gtk_text_iter_backward_word_start (&start); while (!gtk_text_iter_ends_word (&start)) { if (!gtk_text_iter_backward_char (&start)) break; } gtk_text_iter_forward_word_end (&end); break; case ATK_TEXT_BOUNDARY_SENTENCE_START: if (!gtk_text_iter_starts_sentence (&start)) gtk_text_iter_backward_sentence_start (&start); if (gtk_text_iter_inside_sentence (&end)) gtk_text_iter_forward_sentence_end (&end); while (!gtk_text_iter_starts_sentence (&end)) { if (!gtk_text_iter_forward_char (&end)) break; } break; case ATK_TEXT_BOUNDARY_SENTENCE_END: if (gtk_text_iter_inside_sentence (&start) && !gtk_text_iter_starts_sentence (&start)) gtk_text_iter_backward_sentence_start (&start); while (!gtk_text_iter_ends_sentence (&start)) { if (!gtk_text_iter_backward_char (&start)) break; } gtk_text_iter_forward_sentence_end (&end); break; case ATK_TEXT_BOUNDARY_LINE_START: case ATK_TEXT_BOUNDARY_LINE_END: #if 0 icon_view = GTK_ICON_VIEW (item->widget); /* FIXME we probably have to use GailTextCell to salvage this */ gtk_icon_view_update_item_text (icon_view, item->item); get_pango_text_offsets (icon_view->priv->layout, buffer, 1, boundary_type, offset, start_offset, end_offset, &start, &end); #endif break; } *start_offset = gtk_text_iter_get_offset (&start); *end_offset = gtk_text_iter_get_offset (&end); return gtk_text_buffer_get_text (buffer, &start, &end, FALSE); } static gchar* gtk_icon_view_item_accessible_text_get_text_after_offset (AtkText *text, gint offset, AtkTextBoundary boundary_type, gint *start_offset, gint *end_offset) { GtkIconViewItemAccessible *item; GtkTextIter start, end; GtkTextBuffer *buffer; #if 0 GtkIconView *icon_view; #endif item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text); if (!GTK_IS_ICON_VIEW (item->widget)) return NULL; if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT)) return NULL; buffer = item->text_buffer; if (!gtk_text_buffer_get_char_count (buffer)) { *start_offset = 0; *end_offset = 0; return g_strdup (""); } gtk_text_buffer_get_iter_at_offset (buffer, &start, offset); end = start; switch (boundary_type) { case ATK_TEXT_BOUNDARY_CHAR: gtk_text_iter_forward_char(&start); gtk_text_iter_forward_chars(&end, 2); break; case ATK_TEXT_BOUNDARY_WORD_START: if (gtk_text_iter_inside_word (&end)) gtk_text_iter_forward_word_end (&end); while (!gtk_text_iter_starts_word (&end)) { if (!gtk_text_iter_forward_char (&end)) break; } start = end; if (!gtk_text_iter_is_end (&end)) { gtk_text_iter_forward_word_end (&end); while (!gtk_text_iter_starts_word (&end)) { if (!gtk_text_iter_forward_char (&end)) break; } } break; case ATK_TEXT_BOUNDARY_WORD_END: gtk_text_iter_forward_word_end (&end); start = end; if (!gtk_text_iter_is_end (&end)) gtk_text_iter_forward_word_end (&end); break; case ATK_TEXT_BOUNDARY_SENTENCE_START: if (gtk_text_iter_inside_sentence (&end)) gtk_text_iter_forward_sentence_end (&end); while (!gtk_text_iter_starts_sentence (&end)) { if (!gtk_text_iter_forward_char (&end)) break; } start = end; if (!gtk_text_iter_is_end (&end)) { gtk_text_iter_forward_sentence_end (&end); while (!gtk_text_iter_starts_sentence (&end)) { if (!gtk_text_iter_forward_char (&end)) break; } } break; case ATK_TEXT_BOUNDARY_SENTENCE_END: gtk_text_iter_forward_sentence_end (&end); start = end; if (!gtk_text_iter_is_end (&end)) gtk_text_iter_forward_sentence_end (&end); break; case ATK_TEXT_BOUNDARY_LINE_START: case ATK_TEXT_BOUNDARY_LINE_END: #if 0 icon_view = GTK_ICON_VIEW (item->widget); /* FIXME we probably have to use GailTextCell to salvage this */ gtk_icon_view_update_item_text (icon_view, item->item); get_pango_text_offsets (icon_view->priv->layout, buffer, 2, boundary_type, offset, start_offset, end_offset, &start, &end); #endif break; } *start_offset = gtk_text_iter_get_offset (&start); *end_offset = gtk_text_iter_get_offset (&end); return gtk_text_buffer_get_text (buffer, &start, &end, FALSE); } static gint gtk_icon_view_item_accessible_text_get_character_count (AtkText *text) { GtkIconViewItemAccessible *item; item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text); if (!GTK_IS_ICON_VIEW (item->widget)) return 0; if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT)) return 0; return gtk_text_buffer_get_char_count (item->text_buffer); } static void gtk_icon_view_item_accessible_text_get_character_extents (AtkText *text, gint offset, gint *x, gint *y, gint *width, gint *height, AtkCoordType coord_type) { GtkIconViewItemAccessible *item; #if 0 GtkIconView *icon_view; PangoRectangle char_rect; const gchar *item_text; gint index; #endif item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text); if (!GTK_IS_ICON_VIEW (item->widget)) return; if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT)) return; #if 0 icon_view = GTK_ICON_VIEW (item->widget); /* FIXME we probably have to use GailTextCell to salvage this */ gtk_icon_view_update_item_text (icon_view, item->item); item_text = pango_layout_get_text (icon_view->priv->layout); index = g_utf8_offset_to_pointer (item_text, offset) - item_text; pango_layout_index_to_pos (icon_view->priv->layout, index, &char_rect); atk_component_get_position (ATK_COMPONENT (text), x, y, coord_type); *x += item->item->layout_x - item->item->x + char_rect.x / PANGO_SCALE; /* Look at gtk_icon_view_paint_item() to see where the text is. */ *x -= ((item->item->width - item->item->layout_width) / 2) + (MAX (item->item->pixbuf_width, icon_view->priv->item_width) - item->item->width) / 2, *y += item->item->layout_y - item->item->y + char_rect.y / PANGO_SCALE; *width = char_rect.width / PANGO_SCALE; *height = char_rect.height / PANGO_SCALE; #endif } static gint gtk_icon_view_item_accessible_text_get_offset_at_point (AtkText *text, gint x, gint y, AtkCoordType coord_type) { GtkIconViewItemAccessible *item; gint offset = 0; #if 0 GtkIconView *icon_view; const gchar *item_text; gint index; gint l_x, l_y; #endif item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (text); if (!GTK_IS_ICON_VIEW (item->widget)) return -1; if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT)) return -1; #if 0 icon_view = GTK_ICON_VIEW (item->widget); /* FIXME we probably have to use GailTextCell to salvage this */ gtk_icon_view_update_item_text (icon_view, item->item); atk_component_get_position (ATK_COMPONENT (text), &l_x, &l_y, coord_type); x -= l_x + item->item->layout_x - item->item->x; x += ((item->item->width - item->item->layout_width) / 2) + (MAX (item->item->pixbuf_width, icon_view->priv->item_width) - item->item->width) / 2, y -= l_y + item->item->layout_y - item->item->y; item_text = pango_layout_get_text (icon_view->priv->layout); if (!pango_layout_xy_to_index (icon_view->priv->layout, x * PANGO_SCALE, y * PANGO_SCALE, &index, NULL)) { if (x < 0 || y < 0) index = 0; else index = -1; } if (index == -1) offset = g_utf8_strlen (item_text, -1); else offset = g_utf8_pointer_to_offset (item_text, item_text + index); #endif return offset; } static void atk_text_item_interface_init (AtkTextIface *iface) { iface->get_text = gtk_icon_view_item_accessible_text_get_text; iface->get_character_at_offset = gtk_icon_view_item_accessible_text_get_character_at_offset; iface->get_text_before_offset = gtk_icon_view_item_accessible_text_get_text_before_offset; iface->get_text_at_offset = gtk_icon_view_item_accessible_text_get_text_at_offset; iface->get_text_after_offset = gtk_icon_view_item_accessible_text_get_text_after_offset; iface->get_character_count = gtk_icon_view_item_accessible_text_get_character_count; iface->get_character_extents = gtk_icon_view_item_accessible_text_get_character_extents; iface->get_offset_at_point = gtk_icon_view_item_accessible_text_get_offset_at_point; } static void gtk_icon_view_item_accessible_get_extents (AtkComponent *component, gint *x, gint *y, gint *width, gint *height, AtkCoordType coord_type) { GtkIconViewItemAccessible *item; AtkObject *parent_obj; gint l_x, l_y; g_return_if_fail (GTK_IS_ICON_VIEW_ITEM_ACCESSIBLE (component)); item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (component); if (!GTK_IS_WIDGET (item->widget)) return; if (atk_state_set_contains_state (item->state_set, ATK_STATE_DEFUNCT)) return; *width = item->item->width; *height = item->item->height; if (gtk_icon_view_item_accessible_is_showing (item)) { parent_obj = gtk_widget_get_accessible (item->widget); atk_component_get_position (ATK_COMPONENT (parent_obj), &l_x, &l_y, coord_type); *x = l_x + item->item->x; *y = l_y + item->item->y; } else { *x = G_MININT; *y = G_MININT; } } static gboolean gtk_icon_view_item_accessible_grab_focus (AtkComponent *component) { GtkIconViewItemAccessible *item; GtkWidget *toplevel; g_return_val_if_fail (GTK_IS_ICON_VIEW_ITEM_ACCESSIBLE (component), FALSE); item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (component); if (!GTK_IS_WIDGET (item->widget)) return FALSE; gtk_widget_grab_focus (item->widget); gtk_icon_view_set_cursor_item (GTK_ICON_VIEW (item->widget), item->item, -1); toplevel = gtk_widget_get_toplevel (GTK_WIDGET (item->widget)); if (GTK_WIDGET_TOPLEVEL (toplevel)) gtk_window_present (GTK_WINDOW (toplevel)); return TRUE; } static void atk_component_item_interface_init (AtkComponentIface *iface) { iface->get_extents = gtk_icon_view_item_accessible_get_extents; iface->grab_focus = gtk_icon_view_item_accessible_grab_focus; } static gboolean gtk_icon_view_item_accessible_add_state (GtkIconViewItemAccessible *item, AtkStateType state_type, gboolean emit_signal) { gboolean rc; rc = atk_state_set_add_state (item->state_set, state_type); /* * The signal should only be generated if the value changed, * not when the item is set up. So states that are set * initially should pass FALSE as the emit_signal argument. */ if (emit_signal) { atk_object_notify_state_change (ATK_OBJECT (item), state_type, TRUE); /* If state_type is ATK_STATE_VISIBLE, additional notification */ if (state_type == ATK_STATE_VISIBLE) g_signal_emit_by_name (item, "visible_data_changed"); } return rc; } static gboolean gtk_icon_view_item_accessible_remove_state (GtkIconViewItemAccessible *item, AtkStateType state_type, gboolean emit_signal) { if (atk_state_set_contains_state (item->state_set, state_type)) { gboolean rc; rc = atk_state_set_remove_state (item->state_set, state_type); /* * The signal should only be generated if the value changed, * not when the item is set up. So states that are set * initially should pass FALSE as the emit_signal argument. */ if (emit_signal) { atk_object_notify_state_change (ATK_OBJECT (item), state_type, FALSE); /* If state_type is ATK_STATE_VISIBLE, additional notification */ if (state_type == ATK_STATE_VISIBLE) g_signal_emit_by_name (item, "visible_data_changed"); } return rc; } else return FALSE; } static gboolean gtk_icon_view_item_accessible_is_showing (GtkIconViewItemAccessible *item) { GtkIconView *icon_view; GdkRectangle visible_rect; gboolean is_showing; /* * An item is considered "SHOWING" if any part of the item is in the * visible rectangle. */ if (!GTK_IS_ICON_VIEW (item->widget)) return FALSE; if (item->item == NULL) return FALSE; icon_view = GTK_ICON_VIEW (item->widget); visible_rect.x = 0; if (icon_view->priv->hadjustment) visible_rect.x += icon_view->priv->hadjustment->value; visible_rect.y = 0; if (icon_view->priv->hadjustment) visible_rect.y += icon_view->priv->vadjustment->value; visible_rect.width = item->widget->allocation.width; visible_rect.height = item->widget->allocation.height; if (((item->item->x + item->item->width) < visible_rect.x) || ((item->item->y + item->item->height) < (visible_rect.y)) || (item->item->x > (visible_rect.x + visible_rect.width)) || (item->item->y > (visible_rect.y + visible_rect.height))) is_showing = FALSE; else is_showing = TRUE; return is_showing; } static gboolean gtk_icon_view_item_accessible_set_visibility (GtkIconViewItemAccessible *item, gboolean emit_signal) { if (gtk_icon_view_item_accessible_is_showing (item)) return gtk_icon_view_item_accessible_add_state (item, ATK_STATE_SHOWING, emit_signal); else return gtk_icon_view_item_accessible_remove_state (item, ATK_STATE_SHOWING, emit_signal); } static void gtk_icon_view_item_accessible_object_init (GtkIconViewItemAccessible *item) { gint i; item->state_set = atk_state_set_new (); atk_state_set_add_state (item->state_set, ATK_STATE_ENABLED); atk_state_set_add_state (item->state_set, ATK_STATE_FOCUSABLE); atk_state_set_add_state (item->state_set, ATK_STATE_SENSITIVE); atk_state_set_add_state (item->state_set, ATK_STATE_SELECTABLE); atk_state_set_add_state (item->state_set, ATK_STATE_VISIBLE); for (i = 0; i < LAST_ACTION; i++) item->action_descriptions[i] = NULL; item->image_description = NULL; item->action_idle_handler = 0; } static void gtk_icon_view_item_accessible_finalize (GObject *object) { GtkIconViewItemAccessible *item; gint i; g_return_if_fail (GTK_IS_ICON_VIEW_ITEM_ACCESSIBLE (object)); item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (object); if (item->widget) g_object_remove_weak_pointer (G_OBJECT (item->widget), (gpointer) &item->widget); if (item->state_set) g_object_unref (item->state_set); if (item->text_buffer) g_object_unref (item->text_buffer); for (i = 0; i < LAST_ACTION; i++) g_free (item->action_descriptions[i]); g_free (item->image_description); if (item->action_idle_handler) { g_source_remove (item->action_idle_handler); item->action_idle_handler = 0; } G_OBJECT_CLASS (accessible_item_parent_class)->finalize (object); } static G_CONST_RETURN gchar* gtk_icon_view_item_accessible_get_name (AtkObject *obj) { if (obj->name) return obj->name; else { GtkIconViewItemAccessible *item; GtkTextIter start_iter; GtkTextIter end_iter; item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (obj); gtk_text_buffer_get_start_iter (item->text_buffer, &start_iter); gtk_text_buffer_get_end_iter (item->text_buffer, &end_iter); return gtk_text_buffer_get_text (item->text_buffer, &start_iter, &end_iter, FALSE); } } static AtkObject* gtk_icon_view_item_accessible_get_parent (AtkObject *obj) { GtkIconViewItemAccessible *item; g_return_val_if_fail (GTK_IS_ICON_VIEW_ITEM_ACCESSIBLE (obj), NULL); item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (obj); if (item->widget) return gtk_widget_get_accessible (item->widget); else return NULL; } static gint gtk_icon_view_item_accessible_get_index_in_parent (AtkObject *obj) { GtkIconViewItemAccessible *item; g_return_val_if_fail (GTK_IS_ICON_VIEW_ITEM_ACCESSIBLE (obj), 0); item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (obj); return item->item->index; } static AtkStateSet * gtk_icon_view_item_accessible_ref_state_set (AtkObject *obj) { GtkIconViewItemAccessible *item; GtkIconView *icon_view; item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (obj); g_return_val_if_fail (item->state_set, NULL); if (!item->widget) return NULL; icon_view = GTK_ICON_VIEW (item->widget); if (icon_view->priv->cursor_item == item->item) atk_state_set_add_state (item->state_set, ATK_STATE_FOCUSED); else atk_state_set_remove_state (item->state_set, ATK_STATE_FOCUSED); return g_object_ref (item->state_set); } static void gtk_icon_view_item_accessible_class_init (AtkObjectClass *klass) { GObjectClass *gobject_class; accessible_item_parent_class = g_type_class_peek_parent (klass); gobject_class = (GObjectClass *)klass; gobject_class->finalize = gtk_icon_view_item_accessible_finalize; klass->get_index_in_parent = gtk_icon_view_item_accessible_get_index_in_parent; klass->get_name = gtk_icon_view_item_accessible_get_name; klass->get_parent = gtk_icon_view_item_accessible_get_parent; klass->ref_state_set = gtk_icon_view_item_accessible_ref_state_set; } static GType gtk_icon_view_item_accessible_get_type (void) { static GType type = 0; if (!type) { const GTypeInfo tinfo = { sizeof (GtkIconViewItemAccessibleClass), (GBaseInitFunc) NULL, /* base init */ (GBaseFinalizeFunc) NULL, /* base finalize */ (GClassInitFunc) gtk_icon_view_item_accessible_class_init, /* class init */ (GClassFinalizeFunc) NULL, /* class finalize */ NULL, /* class data */ sizeof (GtkIconViewItemAccessible), /* instance size */ 0, /* nb preallocs */ (GInstanceInitFunc) gtk_icon_view_item_accessible_object_init, /* instance init */ NULL /* value table */ }; static const GInterfaceInfo atk_component_info = { (GInterfaceInitFunc) atk_component_item_interface_init, (GInterfaceFinalizeFunc) NULL, NULL }; static const GInterfaceInfo atk_action_info = { (GInterfaceInitFunc) atk_action_item_interface_init, (GInterfaceFinalizeFunc) NULL, NULL }; static const GInterfaceInfo atk_image_info = { (GInterfaceInitFunc) atk_image_item_interface_init, (GInterfaceFinalizeFunc) NULL, NULL }; static const GInterfaceInfo atk_text_info = { (GInterfaceInitFunc) atk_text_item_interface_init, (GInterfaceFinalizeFunc) NULL, NULL }; type = g_type_register_static (ATK_TYPE_OBJECT, I_("GtkIconViewItemAccessible"), &tinfo, 0); g_type_add_interface_static (type, ATK_TYPE_COMPONENT, &atk_component_info); g_type_add_interface_static (type, ATK_TYPE_ACTION, &atk_action_info); g_type_add_interface_static (type, ATK_TYPE_IMAGE, &atk_image_info); g_type_add_interface_static (type, ATK_TYPE_TEXT, &atk_text_info); } return type; } #define GTK_TYPE_ICON_VIEW_ACCESSIBLE (gtk_icon_view_accessible_get_type ()) #define GTK_ICON_VIEW_ACCESSIBLE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_ICON_VIEW_ACCESSIBLE, GtkIconViewAccessible)) #define GTK_IS_ICON_VIEW_ACCESSIBLE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_ICON_VIEW_ACCESSIBLE)) static GType gtk_icon_view_accessible_get_type (void); typedef struct { AtkObject parent; } GtkIconViewAccessible; typedef struct { AtkObject *item; gint index; } GtkIconViewItemAccessibleInfo; typedef struct { GList *items; GtkAdjustment *old_hadj; GtkAdjustment *old_vadj; GtkTreeModel *model; } GtkIconViewAccessiblePrivate; static GtkIconViewAccessiblePrivate * gtk_icon_view_accessible_get_priv (AtkObject *accessible) { return g_object_get_qdata (G_OBJECT (accessible), accessible_private_data_quark); } static void gtk_icon_view_item_accessible_info_new (AtkObject *accessible, AtkObject *item, gint index) { GtkIconViewItemAccessibleInfo *info; GtkIconViewItemAccessibleInfo *tmp_info; GtkIconViewAccessiblePrivate *priv; GList *items; info = g_new (GtkIconViewItemAccessibleInfo, 1); info->item = item; info->index = index; priv = gtk_icon_view_accessible_get_priv (accessible); items = priv->items; while (items) { tmp_info = items->data; if (tmp_info->index > index) break; items = items->next; } priv->items = g_list_insert_before (priv->items, items, info); priv->old_hadj = NULL; priv->old_vadj = NULL; } static gint gtk_icon_view_accessible_get_n_children (AtkObject *accessible) { GtkIconView *icon_view; GtkWidget *widget; widget = GTK_ACCESSIBLE (accessible)->widget; if (!widget) return 0; icon_view = GTK_ICON_VIEW (widget); return g_list_length (icon_view->priv->items); } static AtkObject * gtk_icon_view_accessible_find_child (AtkObject *accessible, gint index) { GtkIconViewAccessiblePrivate *priv; GtkIconViewItemAccessibleInfo *info; GList *items; priv = gtk_icon_view_accessible_get_priv (accessible); items = priv->items; while (items) { info = items->data; if (info->index == index) return info->item; items = items->next; } return NULL; } static AtkObject * gtk_icon_view_accessible_ref_child (AtkObject *accessible, gint index) { GtkIconView *icon_view; GtkWidget *widget; GList *icons; AtkObject *obj; GtkIconViewItemAccessible *a11y_item; widget = GTK_ACCESSIBLE (accessible)->widget; if (!widget) return NULL; icon_view = GTK_ICON_VIEW (widget); icons = g_list_nth (icon_view->priv->items, index); obj = NULL; if (icons) { GtkIconViewItem *item = icons->data; g_return_val_if_fail (item->index == index, NULL); obj = gtk_icon_view_accessible_find_child (accessible, index); if (!obj) { obj = g_object_new (gtk_icon_view_item_accessible_get_type (), NULL); gtk_icon_view_item_accessible_info_new (accessible, obj, index); obj->role = ATK_ROLE_ICON; a11y_item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (obj); a11y_item->item = item; a11y_item->widget = widget; a11y_item->text_buffer = gtk_text_buffer_new (NULL); gtk_icon_view_set_cell_data (icon_view, item); gtk_text_buffer_set_text (a11y_item->text_buffer, get_text (icon_view, item), -1); gtk_icon_view_item_accessible_set_visibility (a11y_item, FALSE); g_object_add_weak_pointer (G_OBJECT (widget), (gpointer) &(a11y_item->widget)); } g_object_ref (obj); } return obj; } static void gtk_icon_view_accessible_traverse_items (GtkIconViewAccessible *view, GList *list) { GtkIconViewAccessiblePrivate *priv; GtkIconViewItemAccessibleInfo *info; GtkIconViewItemAccessible *item; GList *items; priv = gtk_icon_view_accessible_get_priv (ATK_OBJECT (view)); if (priv->items) { GtkWidget *widget; gboolean act_on_item; widget = GTK_ACCESSIBLE (view)->widget; if (widget == NULL) return; items = priv->items; act_on_item = (list == NULL); while (items) { info = (GtkIconViewItemAccessibleInfo *)items->data; item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (info->item); if (act_on_item == FALSE && list == items) act_on_item = TRUE; if (act_on_item) gtk_icon_view_item_accessible_set_visibility (item, TRUE); items = items->next; } } } static void gtk_icon_view_accessible_adjustment_changed (GtkAdjustment *adjustment, GtkIconView *icon_view) { AtkObject *obj; GtkIconViewAccessible *view; /* * The scrollbars have changed */ obj = gtk_widget_get_accessible (GTK_WIDGET (icon_view)); view = GTK_ICON_VIEW_ACCESSIBLE (obj); gtk_icon_view_accessible_traverse_items (view, NULL); } static void gtk_icon_view_accessible_set_scroll_adjustments (GtkWidget *widget, GtkAdjustment *hadj, GtkAdjustment *vadj) { AtkObject *atk_obj; GtkIconViewAccessiblePrivate *priv; atk_obj = gtk_widget_get_accessible (widget); priv = gtk_icon_view_accessible_get_priv (atk_obj); if (priv->old_hadj != hadj) { if (priv->old_hadj) { g_object_remove_weak_pointer (G_OBJECT (priv->old_hadj), (gpointer *)&priv->old_hadj); g_signal_handlers_disconnect_by_func (priv->old_hadj, (gpointer) gtk_icon_view_accessible_adjustment_changed, widget); } priv->old_hadj = hadj; if (priv->old_hadj) { g_object_add_weak_pointer (G_OBJECT (priv->old_hadj), (gpointer *)&priv->old_hadj); g_signal_connect (hadj, "value-changed", G_CALLBACK (gtk_icon_view_accessible_adjustment_changed), widget); } } if (priv->old_vadj != vadj) { if (priv->old_vadj) { g_object_remove_weak_pointer (G_OBJECT (priv->old_vadj), (gpointer *)&priv->old_vadj); g_signal_handlers_disconnect_by_func (priv->old_vadj, (gpointer) gtk_icon_view_accessible_adjustment_changed, widget); } priv->old_vadj = vadj; if (priv->old_vadj) { g_object_add_weak_pointer (G_OBJECT (priv->old_vadj), (gpointer *)&priv->old_vadj); g_signal_connect (vadj, "value-changed", G_CALLBACK (gtk_icon_view_accessible_adjustment_changed), widget); } } } static void gtk_icon_view_accessible_model_row_changed (GtkTreeModel *tree_model, GtkTreePath *path, GtkTreeIter *iter, gpointer user_data) { AtkObject *atk_obj; atk_obj = gtk_widget_get_accessible (GTK_WIDGET (user_data)); g_signal_emit_by_name (atk_obj, "visible_data_changed"); return; } static void gtk_icon_view_accessible_model_row_inserted (GtkTreeModel *tree_model, GtkTreePath *path, GtkTreeIter *iter, gpointer user_data) { GtkIconViewAccessiblePrivate *priv; GtkIconViewItemAccessibleInfo *info; GtkIconViewAccessible *view; GtkIconViewItemAccessible *item; GList *items; GList *tmp_list; AtkObject *atk_obj; gint index; index = gtk_tree_path_get_indices(path)[0]; atk_obj = gtk_widget_get_accessible (GTK_WIDGET (user_data)); view = GTK_ICON_VIEW_ACCESSIBLE (atk_obj); priv = gtk_icon_view_accessible_get_priv (atk_obj); items = priv->items; tmp_list = NULL; while (items) { info = items->data; item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (info->item); if (info->index != item->item->index) { if (info->index < index) g_warning ("Unexpected index value on insertion %d %d", index, info->index); if (tmp_list == NULL) tmp_list = items; info->index = item->item->index; } items = items->next; } gtk_icon_view_accessible_traverse_items (view, tmp_list); g_signal_emit_by_name (atk_obj, "children_changed::add", index, NULL, NULL); return; } static void gtk_icon_view_accessible_model_row_deleted (GtkTreeModel *tree_model, GtkTreePath *path, gpointer user_data) { GtkIconViewAccessiblePrivate *priv; GtkIconViewItemAccessibleInfo *info; GtkIconViewAccessible *view; GtkIconViewItemAccessible *item; GList *items; GList *tmp_list; GList *deleted_item; AtkObject *atk_obj; gint index; index = gtk_tree_path_get_indices(path)[0]; atk_obj = gtk_widget_get_accessible (GTK_WIDGET (user_data)); view = GTK_ICON_VIEW_ACCESSIBLE (atk_obj); priv = gtk_icon_view_accessible_get_priv (atk_obj); items = priv->items; tmp_list = NULL; deleted_item = NULL; info = NULL; while (items) { info = items->data; item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (info->item); if (info->index == index) { deleted_item = items; } if (info->index != item->item->index) { if (tmp_list == NULL) tmp_list = items; else info->index = item->item->index; } items = items->next; } gtk_icon_view_accessible_traverse_items (view, tmp_list); if (deleted_item) { info = deleted_item->data; gtk_icon_view_item_accessible_add_state (GTK_ICON_VIEW_ITEM_ACCESSIBLE (info->item), ATK_STATE_DEFUNCT, TRUE); } g_signal_emit_by_name (atk_obj, "children_changed::remove", index, NULL, NULL); if (deleted_item) { priv->items = g_list_remove_link (priv->items, deleted_item); g_free (info); } return; } static gint gtk_icon_view_accessible_item_compare (GtkIconViewItemAccessibleInfo *i1, GtkIconViewItemAccessibleInfo *i2) { return i1->index - i2->index; } static void gtk_icon_view_accessible_model_rows_reordered (GtkTreeModel *tree_model, GtkTreePath *path, GtkTreeIter *iter, gint *new_order, gpointer user_data) { GtkIconViewAccessiblePrivate *priv; GtkIconViewItemAccessibleInfo *info; GtkIconView *icon_view; GtkIconViewItemAccessible *item; GList *items; AtkObject *atk_obj; atk_obj = gtk_widget_get_accessible (GTK_WIDGET (user_data)); icon_view = GTK_ICON_VIEW (user_data); priv = gtk_icon_view_accessible_get_priv (atk_obj); items = priv->items; while (items) { info = items->data; item = GTK_ICON_VIEW_ITEM_ACCESSIBLE (info->item); info->index = new_order[info->index]; item->item = g_list_nth_data (icon_view->priv->items, info->index); items = items->next; } priv->items = g_list_sort (priv->items, (GCompareFunc)gtk_icon_view_accessible_item_compare); return; } static void gtk_icon_view_accessible_disconnect_model_signals (GtkTreeModel *model, GtkWidget *widget) { GObject *obj; obj = G_OBJECT (model); g_signal_handlers_disconnect_by_func (obj, (gpointer) gtk_icon_view_accessible_model_row_changed, widget); g_signal_handlers_disconnect_by_func (obj, (gpointer) gtk_icon_view_accessible_model_row_inserted, widget); g_signal_handlers_disconnect_by_func (obj, (gpointer) gtk_icon_view_accessible_model_row_deleted, widget); g_signal_handlers_disconnect_by_func (obj, (gpointer) gtk_icon_view_accessible_model_rows_reordered, widget); } static void gtk_icon_view_accessible_connect_model_signals (GtkIconView *icon_view) { GObject *obj; obj = G_OBJECT (icon_view->priv->model); g_signal_connect_data (obj, "row_changed", (GCallback) gtk_icon_view_accessible_model_row_changed, icon_view, NULL, 0); g_signal_connect_data (obj, "row_inserted", (GCallback) gtk_icon_view_accessible_model_row_inserted, icon_view, NULL, G_CONNECT_AFTER); g_signal_connect_data (obj, "row_deleted", (GCallback) gtk_icon_view_accessible_model_row_deleted, icon_view, NULL, G_CONNECT_AFTER); g_signal_connect_data (obj, "rows_reordered", (GCallback) gtk_icon_view_accessible_model_rows_reordered, icon_view, NULL, G_CONNECT_AFTER); } static void gtk_icon_view_accessible_clear_cache (GtkIconViewAccessiblePrivate *priv) { GtkIconViewItemAccessibleInfo *info; GList *items; items = priv->items; while (items) { info = (GtkIconViewItemAccessibleInfo *) items->data; g_object_unref (info->item); g_free (items->data); items = items->next; } g_list_free (priv->items); priv->items = NULL; } static void gtk_icon_view_accessible_notify_gtk (GObject *obj, GParamSpec *pspec) { GtkIconView *icon_view; GtkWidget *widget; AtkObject *atk_obj; GtkIconViewAccessiblePrivate *priv; if (strcmp (pspec->name, "model") == 0) { widget = GTK_WIDGET (obj); atk_obj = gtk_widget_get_accessible (widget); priv = gtk_icon_view_accessible_get_priv (atk_obj); if (priv->model) { g_object_remove_weak_pointer (G_OBJECT (priv->model), (gpointer *)&priv->model); gtk_icon_view_accessible_disconnect_model_signals (priv->model, widget); } gtk_icon_view_accessible_clear_cache (priv); icon_view = GTK_ICON_VIEW (obj); priv->model = icon_view->priv->model; /* If there is no model the GtkIconView is probably being destroyed */ if (priv->model) { g_object_add_weak_pointer (G_OBJECT (priv->model), (gpointer *)&priv->model); gtk_icon_view_accessible_connect_model_signals (icon_view); } } return; } static void gtk_icon_view_accessible_initialize (AtkObject *accessible, gpointer data) { GtkIconViewAccessiblePrivate *priv; GtkIconView *icon_view; if (ATK_OBJECT_CLASS (accessible_parent_class)->initialize) ATK_OBJECT_CLASS (accessible_parent_class)->initialize (accessible, data); priv = g_new0 (GtkIconViewAccessiblePrivate, 1); g_object_set_qdata (G_OBJECT (accessible), accessible_private_data_quark, priv); icon_view = GTK_ICON_VIEW (data); if (icon_view->priv->hadjustment) { priv->old_hadj = icon_view->priv->hadjustment; g_object_add_weak_pointer (G_OBJECT (priv->old_hadj), (gpointer *)&priv->old_hadj); g_signal_connect (icon_view->priv->hadjustment, "value-changed", G_CALLBACK (gtk_icon_view_accessible_adjustment_changed), icon_view); } if (icon_view->priv->vadjustment) { priv->old_vadj = icon_view->priv->vadjustment; g_object_add_weak_pointer (G_OBJECT (priv->old_vadj), (gpointer *)&priv->old_vadj); g_signal_connect (icon_view->priv->vadjustment, "value-changed", G_CALLBACK (gtk_icon_view_accessible_adjustment_changed), icon_view); } g_signal_connect_after (data, "set_scroll_adjustments", G_CALLBACK (gtk_icon_view_accessible_set_scroll_adjustments), NULL); g_signal_connect (data, "notify", G_CALLBACK (gtk_icon_view_accessible_notify_gtk), NULL); priv->model = icon_view->priv->model; if (priv->model) { g_object_add_weak_pointer (G_OBJECT (priv->model), (gpointer *)&priv->model); gtk_icon_view_accessible_connect_model_signals (icon_view); } accessible->role = ATK_ROLE_LAYERED_PANE; } static void gtk_icon_view_accessible_finalize (GObject *object) { GtkIconViewAccessiblePrivate *priv; priv = gtk_icon_view_accessible_get_priv (ATK_OBJECT (object)); gtk_icon_view_accessible_clear_cache (priv); g_free (priv); G_OBJECT_CLASS (accessible_parent_class)->finalize (object); } static void gtk_icon_view_accessible_destroyed (GtkWidget *widget, GtkAccessible *accessible) { AtkObject *atk_obj; GtkIconViewAccessiblePrivate *priv; atk_obj = ATK_OBJECT (accessible); priv = gtk_icon_view_accessible_get_priv (atk_obj); if (priv->old_hadj) { g_object_remove_weak_pointer (G_OBJECT (priv->old_hadj), (gpointer *)&priv->old_hadj); g_signal_handlers_disconnect_by_func (priv->old_hadj, (gpointer) gtk_icon_view_accessible_adjustment_changed, widget); priv->old_hadj = NULL; } if (priv->old_vadj) { g_object_remove_weak_pointer (G_OBJECT (priv->old_vadj), (gpointer *)&priv->old_vadj); g_signal_handlers_disconnect_by_func (priv->old_vadj, (gpointer) gtk_icon_view_accessible_adjustment_changed, widget); priv->old_vadj = NULL; } } static void gtk_icon_view_accessible_connect_widget_destroyed (GtkAccessible *accessible) { if (accessible->widget) { g_signal_connect_after (accessible->widget, "destroy", G_CALLBACK (gtk_icon_view_accessible_destroyed), accessible); } GTK_ACCESSIBLE_CLASS (accessible_parent_class)->connect_widget_destroyed (accessible); } static void gtk_icon_view_accessible_class_init (AtkObjectClass *klass) { GObjectClass *gobject_class; GtkAccessibleClass *accessible_class; accessible_parent_class = g_type_class_peek_parent (klass); gobject_class = (GObjectClass *)klass; accessible_class = (GtkAccessibleClass *)klass; gobject_class->finalize = gtk_icon_view_accessible_finalize; klass->get_n_children = gtk_icon_view_accessible_get_n_children; klass->ref_child = gtk_icon_view_accessible_ref_child; klass->initialize = gtk_icon_view_accessible_initialize; accessible_class->connect_widget_destroyed = gtk_icon_view_accessible_connect_widget_destroyed; accessible_private_data_quark = g_quark_from_static_string ("icon_view-accessible-private-data"); } static AtkObject* gtk_icon_view_accessible_ref_accessible_at_point (AtkComponent *component, gint x, gint y, AtkCoordType coord_type) { GtkWidget *widget; GtkIconView *icon_view; GtkIconViewItem *item; gint x_pos, y_pos; widget = GTK_ACCESSIBLE (component)->widget; if (widget == NULL) /* State is defunct */ return NULL; icon_view = GTK_ICON_VIEW (widget); atk_component_get_extents (component, &x_pos, &y_pos, NULL, NULL, coord_type); item = gtk_icon_view_get_item_at_coords (icon_view, x - x_pos, y - y_pos, TRUE, NULL); if (item) return gtk_icon_view_accessible_ref_child (ATK_OBJECT (component), item->index); return NULL; } static void atk_component_interface_init (AtkComponentIface *iface) { iface->ref_accessible_at_point = gtk_icon_view_accessible_ref_accessible_at_point; } static gboolean gtk_icon_view_accessible_add_selection (AtkSelection *selection, gint i) { GtkWidget *widget; GtkIconView *icon_view; GtkIconViewItem *item; widget = GTK_ACCESSIBLE (selection)->widget; if (widget == NULL) return FALSE; icon_view = GTK_ICON_VIEW (widget); item = g_list_nth_data (icon_view->priv->items, i); if (!item) return FALSE; gtk_icon_view_select_item (icon_view, item); return TRUE; } static gboolean gtk_icon_view_accessible_clear_selection (AtkSelection *selection) { GtkWidget *widget; GtkIconView *icon_view; widget = GTK_ACCESSIBLE (selection)->widget; if (widget == NULL) return FALSE; icon_view = GTK_ICON_VIEW (widget); gtk_icon_view_unselect_all (icon_view); return TRUE; } static AtkObject* gtk_icon_view_accessible_ref_selection (AtkSelection *selection, gint i) { GList *l; GtkWidget *widget; GtkIconView *icon_view; GtkIconViewItem *item; widget = GTK_ACCESSIBLE (selection)->widget; if (widget == NULL) return NULL; icon_view = GTK_ICON_VIEW (widget); l = icon_view->priv->items; while (l) { item = l->data; if (item->selected) { if (i == 0) return atk_object_ref_accessible_child (gtk_widget_get_accessible (widget), item->index); else i--; } l = l->next; } return NULL; } static gint gtk_icon_view_accessible_get_selection_count (AtkSelection *selection) { GtkWidget *widget; GtkIconView *icon_view; GtkIconViewItem *item; GList *l; gint count; widget = GTK_ACCESSIBLE (selection)->widget; if (widget == NULL) return 0; icon_view = GTK_ICON_VIEW (widget); l = icon_view->priv->items; count = 0; while (l) { item = l->data; if (item->selected) count++; l = l->next; } return count; } static gboolean gtk_icon_view_accessible_is_child_selected (AtkSelection *selection, gint i) { GtkWidget *widget; GtkIconView *icon_view; GtkIconViewItem *item; widget = GTK_ACCESSIBLE (selection)->widget; if (widget == NULL) return FALSE; icon_view = GTK_ICON_VIEW (widget); item = g_list_nth_data (icon_view->priv->items, i); if (!item) return FALSE; return item->selected; } static gboolean gtk_icon_view_accessible_remove_selection (AtkSelection *selection, gint i) { GtkWidget *widget; GtkIconView *icon_view; GtkIconViewItem *item; GList *l; gint count; widget = GTK_ACCESSIBLE (selection)->widget; if (widget == NULL) return FALSE; icon_view = GTK_ICON_VIEW (widget); l = icon_view->priv->items; count = 0; while (l) { item = l->data; if (item->selected) { if (count == i) { gtk_icon_view_unselect_item (icon_view, item); return TRUE; } count++; } l = l->next; } return FALSE; } static gboolean gtk_icon_view_accessible_select_all_selection (AtkSelection *selection) { GtkWidget *widget; GtkIconView *icon_view; widget = GTK_ACCESSIBLE (selection)->widget; if (widget == NULL) return FALSE; icon_view = GTK_ICON_VIEW (widget); gtk_icon_view_select_all (icon_view); return TRUE; } static void gtk_icon_view_accessible_selection_interface_init (AtkSelectionIface *iface) { iface->add_selection = gtk_icon_view_accessible_add_selection; iface->clear_selection = gtk_icon_view_accessible_clear_selection; iface->ref_selection = gtk_icon_view_accessible_ref_selection; iface->get_selection_count = gtk_icon_view_accessible_get_selection_count; iface->is_child_selected = gtk_icon_view_accessible_is_child_selected; iface->remove_selection = gtk_icon_view_accessible_remove_selection; iface->select_all_selection = gtk_icon_view_accessible_select_all_selection; } static GType gtk_icon_view_accessible_get_type (void) { static GType type = 0; if (!type) { static GTypeInfo tinfo = { 0, /* class size */ (GBaseInitFunc) NULL, /* base init */ (GBaseFinalizeFunc) NULL, /* base finalize */ (GClassInitFunc) gtk_icon_view_accessible_class_init, (GClassFinalizeFunc) NULL, /* class finalize */ NULL, /* class data */ 0, /* instance size */ 0, /* nb preallocs */ (GInstanceInitFunc) NULL, /* instance init */ NULL /* value table */ }; static const GInterfaceInfo atk_component_info = { (GInterfaceInitFunc) atk_component_interface_init, (GInterfaceFinalizeFunc) NULL, NULL }; static const GInterfaceInfo atk_selection_info = { (GInterfaceInitFunc) gtk_icon_view_accessible_selection_interface_init, (GInterfaceFinalizeFunc) NULL, NULL }; /* * Figure out the size of the class and instance * we are deriving from */ AtkObjectFactory *factory; GType derived_type; GTypeQuery query; GType derived_atk_type; derived_type = g_type_parent (GTK_TYPE_ICON_VIEW); factory = atk_registry_get_factory (atk_get_default_registry (), derived_type); derived_atk_type = atk_object_factory_get_accessible_type (factory); g_type_query (derived_atk_type, &query); tinfo.class_size = query.class_size; tinfo.instance_size = query.instance_size; type = g_type_register_static (derived_atk_type, "GtkIconViewAccessible", &tinfo, 0); g_type_add_interface_static (type, ATK_TYPE_COMPONENT, &atk_component_info); g_type_add_interface_static (type, ATK_TYPE_SELECTION, &atk_selection_info); } return type; } static AtkObject * gtk_icon_view_accessible_new (GObject *obj) { AtkObject *accessible; g_return_val_if_fail (GTK_IS_WIDGET (obj), NULL); accessible = g_object_new (gtk_icon_view_accessible_get_type (), NULL); atk_object_initialize (accessible, obj); return accessible; } static GType gtk_icon_view_accessible_factory_get_accessible_type (void) { return gtk_icon_view_accessible_get_type (); } static AtkObject* gtk_icon_view_accessible_factory_create_accessible (GObject *obj) { return gtk_icon_view_accessible_new (obj); } static void gtk_icon_view_accessible_factory_class_init (AtkObjectFactoryClass *klass) { klass->create_accessible = gtk_icon_view_accessible_factory_create_accessible; klass->get_accessible_type = gtk_icon_view_accessible_factory_get_accessible_type; } static GType gtk_icon_view_accessible_factory_get_type (void) { static GType type = 0; if (!type) { const GTypeInfo tinfo = { sizeof (AtkObjectFactoryClass), NULL, /* base_init */ NULL, /* base_finalize */ (GClassInitFunc) gtk_icon_view_accessible_factory_class_init, NULL, /* class_finalize */ NULL, /* class_data */ sizeof (AtkObjectFactory), 0, /* n_preallocs */ NULL, NULL }; type = g_type_register_static (ATK_TYPE_OBJECT_FACTORY, "GtkIconViewAccessibleFactory", &tinfo, 0); } return type; } static AtkObject * gtk_icon_view_get_accessible (GtkWidget *widget) { static gboolean first_time = TRUE; if (first_time) { AtkObjectFactory *factory; AtkRegistry *registry; GType derived_type; GType derived_atk_type; /* * Figure out whether accessibility is enabled by looking at the * type of the accessible object which would be created for * the parent type of GtkIconView. */ derived_type = g_type_parent (GTK_TYPE_ICON_VIEW); registry = atk_get_default_registry (); factory = atk_registry_get_factory (registry, derived_type); derived_atk_type = atk_object_factory_get_accessible_type (factory); if (g_type_is_a (derived_atk_type, GTK_TYPE_ACCESSIBLE)) atk_registry_set_factory_type (registry, GTK_TYPE_ICON_VIEW, gtk_icon_view_accessible_factory_get_type ()); first_time = FALSE; } return (* GTK_WIDGET_CLASS (gtk_icon_view_parent_class)->get_accessible) (widget); } #define __GTK_ICON_VIEW_C__ #include "gtkaliasdef.c"