/* -*- Mode: C; c-file-style: "gnu"; tab-width: 8 -*- */ /* GTK - The GIMP Toolkit * gtktextview.c Copyright (C) 2000 Red Hat, Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library. If not, see . */ /* * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS * file for a list of people on the GTK+ Team. See the ChangeLog * files for a list of changes. These files are distributed with * GTK+ at ftp://ftp.gtk.org/pub/gtk/. */ #include "config.h" #include #define GTK_TEXT_USE_INTERNAL_UNSUPPORTED_API #include "gtkadjustmentprivate.h" #include "gtkbindings.h" #include "gtkdnd.h" #include "gtkdebug.h" #include "gtkintl.h" #include "gtkmain.h" #include "gtkmarshalers.h" #include "gtkmenu.h" #include "gtkmenuitem.h" #include "gtkrenderbackgroundprivate.h" #include "gtkseparatormenuitem.h" #include "gtksettings.h" #include "gtkselectionprivate.h" #include "gtktextbufferrichtext.h" #include "gtktextdisplay.h" #include "gtktextview.h" #include "gtkimmulticontext.h" #include "gtkprivate.h" #include "gtktextutil.h" #include "gtkwidgetprivate.h" #include "gtkwindow.h" #include "gtkscrollable.h" #include "gtktypebuiltins.h" #include "gtktexthandleprivate.h" #include "gtkcssstylepropertyprivate.h" #include "gtkpopover.h" #include "gtktoolbar.h" #include "gtkpixelcacheprivate.h" #include "gtkmagnifierprivate.h" #include "gtkemojichooser.h" #include "a11y/gtktextviewaccessibleprivate.h" /** * SECTION:gtktextview * @Short_description: Widget that displays a GtkTextBuffer * @Title: GtkTextView * @See_also: #GtkTextBuffer, #GtkTextIter * * You may wish to begin by reading the * [text widget conceptual overview][TextWidget] * which gives an overview of all the objects and data * types related to the text widget and how they work together. * * # CSS nodes * * |[ * textview.view * ├── border.top * ├── border.left * ├── text * │ ╰── [selection] * ├── border.right * ├── border.bottom * ╰── [window.popup] * ]| * * GtkTextView has a main css node with name textview and style class .view, * and subnodes for each of the border windows, and the main text area, * with names border and text, respectively. The border nodes each get * one of the style classes .left, .right, .top or .bottom. * * A node representing the selection will appear below the text node. * * If a context menu is opened, the window node will appear as a subnode * of the main node. */ /* How scrolling, validation, exposes, etc. work. * * The expose_event handler has the invariant that the onscreen lines * have been validated. * * There are two ways that onscreen lines can become invalid. The first * is to change which lines are onscreen. This happens when the value * of a scroll adjustment changes. So the code path begins in * gtk_text_view_value_changed() and goes like this: * - gdk_window_scroll() to reflect the new adjustment value * - validate the lines that were moved onscreen * - gdk_window_process_updates() to handle the exposes immediately * * The second way is that you get the “invalidated” signal from the layout, * indicating that lines have become invalid. This code path begins in * invalidated_handler() and goes like this: * - install high-priority idle which does the rest of the steps * - if a scroll is pending from scroll_to_mark(), do the scroll, * jumping to the gtk_text_view_value_changed() code path * - otherwise, validate the onscreen lines * - DO NOT process updates * * In both cases, validating the onscreen lines can trigger a scroll * due to maintaining the first_para on the top of the screen. * If validation triggers a scroll, we jump to the top of the code path * for value_changed, and bail out of the current code path. * * Also, in size_allocate, if we invalidate some lines from changing * the layout width, we need to go ahead and run the high-priority idle, * because GTK sends exposes right after doing the size allocates without * returning to the main loop. This is also why the high-priority idle * is at a higher priority than resizing. * */ #if 0 #define DEBUG_VALIDATION_AND_SCROLLING #endif #ifdef DEBUG_VALIDATION_AND_SCROLLING #define DV(x) (x) #else #define DV(x) #endif #define SCREEN_WIDTH(widget) text_window_get_width (GTK_TEXT_VIEW (widget)->priv->text_window) #define SCREEN_HEIGHT(widget) text_window_get_height (GTK_TEXT_VIEW (widget)->priv->text_window) #define SPACE_FOR_CURSOR 1 #define GTK_TEXT_VIEW_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_TEXT_VIEW, GtkTextViewPrivate)) typedef struct _GtkTextWindow GtkTextWindow; typedef struct _GtkTextPendingScroll GtkTextPendingScroll; struct _GtkTextViewPrivate { GtkTextLayout *layout; GtkTextBuffer *buffer; guint blink_time; /* time in msec the cursor has blinked since last user event */ guint im_spot_idle; gchar *im_module; gint dnd_x; gint dnd_y; GtkTextHandle *text_handle; GtkWidget *selection_bubble; guint selection_bubble_timeout_id; GtkWidget *magnifier_popover; GtkWidget *magnifier; GtkTextWindow *text_window; GtkTextWindow *left_window; GtkTextWindow *right_window; GtkTextWindow *top_window; GtkTextWindow *bottom_window; GtkAdjustment *hadjustment; GtkAdjustment *vadjustment; /* X offset between widget coordinates and buffer coordinates * taking left_padding in account */ gint xoffset; /* Y offset between widget coordinates and buffer coordinates * taking top_padding and top_margin in account */ gint yoffset; /* Width and height of the buffer */ gint width; gint height; /* This is used to monitor the overall size request * and decide whether we need to queue resizes when * the buffer content changes. * * FIXME: This could be done in a simpler way by * consulting the above width/height of the buffer + some * padding values, however all of this request code needs * to be changed to use GtkWidget Iface and deserves * more attention. */ GtkRequisition cached_size_request; /* The virtual cursor position is normally the same as the * actual (strong) cursor position, except in two circumstances: * * a) When the cursor is moved vertically with the keyboard * b) When the text view is scrolled with the keyboard * * In case a), virtual_cursor_x is preserved, but not virtual_cursor_y * In case b), both virtual_cursor_x and virtual_cursor_y are preserved. */ gint virtual_cursor_x; /* -1 means use actual cursor position */ gint virtual_cursor_y; /* -1 means use actual cursor position */ GtkTextMark *first_para_mark; /* Mark at the beginning of the first onscreen paragraph */ gint first_para_pixels; /* Offset of top of screen in the first onscreen paragraph */ guint blink_timeout; guint scroll_timeout; guint first_validate_idle; /* Idle to revalidate onscreen portion, runs before resize */ guint incremental_validate_idle; /* Idle to revalidate offscreen portions, runs after redraw */ GtkTextMark *dnd_mark; GtkIMContext *im_context; GtkWidget *popup_menu; GSList *children; GtkTextPendingScroll *pending_scroll; GtkPixelCache *pixel_cache; GtkGesture *multipress_gesture; GtkGesture *drag_gesture; GtkCssNode *selection_node; /* Default style settings */ gint pixels_above_lines; gint pixels_below_lines; gint pixels_inside_wrap; GtkWrapMode wrap_mode; GtkJustification justify; gint left_margin; gint right_margin; gint top_margin; gint bottom_margin; gint left_padding; gint right_padding; gint top_padding; gint bottom_padding; gint top_border; gint bottom_border; gint left_border; gint right_border; gint indent; gint64 handle_place_time; PangoTabArray *tabs; guint editable : 1; guint overwrite_mode : 1; guint cursor_visible : 1; /* if we have reset the IM since the last character entered */ guint need_im_reset : 1; guint accepts_tab : 1; guint width_changed : 1; /* debug flag - means that we've validated onscreen since the * last "invalidate" signal from the layout */ guint onscreen_validated : 1; guint mouse_cursor_obscured : 1; guint scroll_after_paste : 1; /* GtkScrollablePolicy needs to be checked when * driving the scrollable adjustment values */ guint hscroll_policy : 1; guint vscroll_policy : 1; guint cursor_handle_dragged : 1; guint selection_handle_dragged : 1; guint populate_all : 1; guint in_scroll : 1; guint handling_key_event : 1; }; struct _GtkTextPendingScroll { GtkTextMark *mark; gdouble within_margin; gboolean use_align; gdouble xalign; gdouble yalign; }; typedef enum { SELECT_CHARACTERS, SELECT_WORDS, SELECT_LINES } SelectionGranularity; enum { POPULATE_POPUP, MOVE_CURSOR, PAGE_HORIZONTALLY, SET_ANCHOR, INSERT_AT_CURSOR, DELETE_FROM_CURSOR, BACKSPACE, CUT_CLIPBOARD, COPY_CLIPBOARD, PASTE_CLIPBOARD, TOGGLE_OVERWRITE, MOVE_VIEWPORT, SELECT_ALL, TOGGLE_CURSOR_VISIBLE, PREEDIT_CHANGED, EXTEND_SELECTION, INSERT_EMOJI, LAST_SIGNAL }; enum { PROP_0, PROP_PIXELS_ABOVE_LINES, PROP_PIXELS_BELOW_LINES, PROP_PIXELS_INSIDE_WRAP, PROP_EDITABLE, PROP_WRAP_MODE, PROP_JUSTIFICATION, PROP_LEFT_MARGIN, PROP_RIGHT_MARGIN, PROP_TOP_MARGIN, PROP_BOTTOM_MARGIN, PROP_INDENT, PROP_TABS, PROP_CURSOR_VISIBLE, PROP_BUFFER, PROP_OVERWRITE, PROP_ACCEPTS_TAB, PROP_IM_MODULE, PROP_HADJUSTMENT, PROP_VADJUSTMENT, PROP_HSCROLL_POLICY, PROP_VSCROLL_POLICY, PROP_INPUT_PURPOSE, PROP_INPUT_HINTS, PROP_POPULATE_ALL, PROP_MONOSPACE }; static GQuark quark_text_selection_data = 0; static GQuark quark_gtk_signal = 0; static GQuark quark_text_view_child = 0; static void gtk_text_view_finalize (GObject *object); static void gtk_text_view_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec); static void gtk_text_view_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec); static void gtk_text_view_destroy (GtkWidget *widget); static void gtk_text_view_size_request (GtkWidget *widget, GtkRequisition *requisition); static void gtk_text_view_get_preferred_width (GtkWidget *widget, gint *minimum, gint *natural); static void gtk_text_view_get_preferred_height (GtkWidget *widget, gint *minimum, gint *natural); static void gtk_text_view_size_allocate (GtkWidget *widget, GtkAllocation *allocation); static void gtk_text_view_map (GtkWidget *widget); static void gtk_text_view_unmap (GtkWidget *widget); static void gtk_text_view_realize (GtkWidget *widget); static void gtk_text_view_unrealize (GtkWidget *widget); static void gtk_text_view_style_updated (GtkWidget *widget); static void gtk_text_view_direction_changed (GtkWidget *widget, GtkTextDirection previous_direction); static void gtk_text_view_state_flags_changed (GtkWidget *widget, GtkStateFlags previous_state); static void gtk_text_view_multipress_gesture_pressed (GtkGestureMultiPress *gesture, gint n_press, gdouble x, gdouble y, GtkTextView *text_view); static void gtk_text_view_drag_gesture_update (GtkGestureDrag *gesture, gdouble offset_x, gdouble offset_y, GtkTextView *text_view); static void gtk_text_view_drag_gesture_end (GtkGestureDrag *gesture, gdouble offset_x, gdouble offset_y, GtkTextView *text_view); static gint gtk_text_view_event (GtkWidget *widget, GdkEvent *event); static gint gtk_text_view_key_press_event (GtkWidget *widget, GdkEventKey *event); static gint gtk_text_view_key_release_event (GtkWidget *widget, GdkEventKey *event); static gint gtk_text_view_focus_in_event (GtkWidget *widget, GdkEventFocus *event); static gint gtk_text_view_focus_out_event (GtkWidget *widget, GdkEventFocus *event); static gint gtk_text_view_motion_event (GtkWidget *widget, GdkEventMotion *event); static gint gtk_text_view_draw (GtkWidget *widget, cairo_t *cr); static gboolean gtk_text_view_focus (GtkWidget *widget, GtkDirectionType direction); static void gtk_text_view_select_all (GtkWidget *widget, gboolean select); static gboolean get_middle_click_paste (GtkTextView *text_view); static GtkTextBuffer* gtk_text_view_create_buffer (GtkTextView *text_view); /* Source side drag signals */ static void gtk_text_view_drag_begin (GtkWidget *widget, GdkDragContext *context); static void gtk_text_view_drag_end (GtkWidget *widget, GdkDragContext *context); static void gtk_text_view_drag_data_get (GtkWidget *widget, GdkDragContext *context, GtkSelectionData *selection_data, guint info, guint time); static void gtk_text_view_drag_data_delete (GtkWidget *widget, GdkDragContext *context); /* Target side drag signals */ static void gtk_text_view_drag_leave (GtkWidget *widget, GdkDragContext *context, guint time); static gboolean gtk_text_view_drag_motion (GtkWidget *widget, GdkDragContext *context, gint x, gint y, guint time); static gboolean gtk_text_view_drag_drop (GtkWidget *widget, GdkDragContext *context, gint x, gint y, guint time); static void gtk_text_view_drag_data_received (GtkWidget *widget, GdkDragContext *context, gint x, gint y, GtkSelectionData *selection_data, guint info, guint time); static gboolean gtk_text_view_popup_menu (GtkWidget *widget); static void gtk_text_view_move_cursor (GtkTextView *text_view, GtkMovementStep step, gint count, gboolean extend_selection); static void gtk_text_view_move_viewport (GtkTextView *text_view, GtkScrollStep step, gint count); static void gtk_text_view_set_anchor (GtkTextView *text_view); static gboolean gtk_text_view_scroll_pages (GtkTextView *text_view, gint count, gboolean extend_selection); static gboolean gtk_text_view_scroll_hpages(GtkTextView *text_view, gint count, gboolean extend_selection); static void gtk_text_view_insert_at_cursor (GtkTextView *text_view, const gchar *str); static void gtk_text_view_delete_from_cursor (GtkTextView *text_view, GtkDeleteType type, gint count); static void gtk_text_view_backspace (GtkTextView *text_view); static void gtk_text_view_cut_clipboard (GtkTextView *text_view); static void gtk_text_view_copy_clipboard (GtkTextView *text_view); static void gtk_text_view_paste_clipboard (GtkTextView *text_view); static void gtk_text_view_toggle_overwrite (GtkTextView *text_view); static void gtk_text_view_toggle_cursor_visible (GtkTextView *text_view); static void gtk_text_view_unselect (GtkTextView *text_view); static void gtk_text_view_validate_onscreen (GtkTextView *text_view); static void gtk_text_view_get_first_para_iter (GtkTextView *text_view, GtkTextIter *iter); static void gtk_text_view_update_layout_width (GtkTextView *text_view); static void gtk_text_view_set_attributes_from_style (GtkTextView *text_view, GtkTextAttributes *values); static void gtk_text_view_ensure_layout (GtkTextView *text_view); static void gtk_text_view_destroy_layout (GtkTextView *text_view); static void gtk_text_view_check_keymap_direction (GtkTextView *text_view); static void gtk_text_view_start_selection_drag (GtkTextView *text_view, const GtkTextIter *iter, SelectionGranularity granularity, gboolean extends); static gboolean gtk_text_view_end_selection_drag (GtkTextView *text_view); static void gtk_text_view_start_selection_dnd (GtkTextView *text_view, const GtkTextIter *iter, const GdkEvent *event, gint x, gint y); static void gtk_text_view_check_cursor_blink (GtkTextView *text_view); static void gtk_text_view_pend_cursor_blink (GtkTextView *text_view); static void gtk_text_view_stop_cursor_blink (GtkTextView *text_view); static void gtk_text_view_reset_blink_time (GtkTextView *text_view); static void gtk_text_view_value_changed (GtkAdjustment *adjustment, GtkTextView *view); static void gtk_text_view_commit_handler (GtkIMContext *context, const gchar *str, GtkTextView *text_view); static void gtk_text_view_commit_text (GtkTextView *text_view, const gchar *text); static void gtk_text_view_preedit_changed_handler (GtkIMContext *context, GtkTextView *text_view); static gboolean gtk_text_view_retrieve_surrounding_handler (GtkIMContext *context, GtkTextView *text_view); static gboolean gtk_text_view_delete_surrounding_handler (GtkIMContext *context, gint offset, gint n_chars, GtkTextView *text_view); static void gtk_text_view_mark_set_handler (GtkTextBuffer *buffer, const GtkTextIter *location, GtkTextMark *mark, gpointer data); static void gtk_text_view_target_list_notify (GtkTextBuffer *buffer, const GParamSpec *pspec, gpointer data); static void gtk_text_view_paste_done_handler (GtkTextBuffer *buffer, GtkClipboard *clipboard, gpointer data); static void gtk_text_view_buffer_changed_handler (GtkTextBuffer *buffer, gpointer data); static void gtk_text_view_get_virtual_cursor_pos (GtkTextView *text_view, GtkTextIter *cursor, gint *x, gint *y); static void gtk_text_view_set_virtual_cursor_pos (GtkTextView *text_view, gint x, gint y); static void gtk_text_view_do_popup (GtkTextView *text_view, const GdkEvent *event); static void cancel_pending_scroll (GtkTextView *text_view); static void gtk_text_view_queue_scroll (GtkTextView *text_view, GtkTextMark *mark, gdouble within_margin, gboolean use_align, gdouble xalign, gdouble yalign); static gboolean gtk_text_view_flush_scroll (GtkTextView *text_view); static void gtk_text_view_update_adjustments (GtkTextView *text_view); static void gtk_text_view_invalidate (GtkTextView *text_view); static void gtk_text_view_flush_first_validate (GtkTextView *text_view); static void gtk_text_view_set_hadjustment (GtkTextView *text_view, GtkAdjustment *adjustment); static void gtk_text_view_set_vadjustment (GtkTextView *text_view, GtkAdjustment *adjustment); static void gtk_text_view_set_hadjustment_values (GtkTextView *text_view); static void gtk_text_view_set_vadjustment_values (GtkTextView *text_view); static void gtk_text_view_update_im_spot_location (GtkTextView *text_view); static void gtk_text_view_insert_emoji (GtkTextView *text_view); /* Container methods */ static void gtk_text_view_add (GtkContainer *container, GtkWidget *child); static void gtk_text_view_remove (GtkContainer *container, GtkWidget *child); static void gtk_text_view_forall (GtkContainer *container, gboolean include_internals, GtkCallback callback, gpointer callback_data); /* GtkTextHandle handlers */ static void gtk_text_view_handle_drag_started (GtkTextHandle *handle, GtkTextHandlePosition pos, GtkTextView *text_view); static void gtk_text_view_handle_dragged (GtkTextHandle *handle, GtkTextHandlePosition pos, gint x, gint y, GtkTextView *text_view); static void gtk_text_view_handle_drag_finished (GtkTextHandle *handle, GtkTextHandlePosition pos, GtkTextView *text_view); static void gtk_text_view_update_handles (GtkTextView *text_view, GtkTextHandleMode mode); static void gtk_text_view_selection_bubble_popup_unset (GtkTextView *text_view); static void gtk_text_view_selection_bubble_popup_set (GtkTextView *text_view); static void gtk_text_view_queue_draw_region (GtkWidget *widget, const cairo_region_t *region); static void gtk_text_view_get_rendered_rect (GtkTextView *text_view, GdkRectangle *rect); static gboolean gtk_text_view_extend_selection (GtkTextView *text_view, GtkTextExtendSelection granularity, const GtkTextIter *location, GtkTextIter *start, GtkTextIter *end); static void extend_selection (GtkTextView *text_view, SelectionGranularity granularity, const GtkTextIter *location, GtkTextIter *start, GtkTextIter *end); /* FIXME probably need the focus methods. */ typedef struct _GtkTextViewChild GtkTextViewChild; struct _GtkTextViewChild { GtkWidget *widget; GtkTextChildAnchor *anchor; gint from_top_of_line; gint from_left_of_buffer; /* These are ignored if anchor != NULL */ GtkTextWindowType type; gint x; gint y; }; static GtkTextViewChild* text_view_child_new_anchored (GtkWidget *child, GtkTextChildAnchor *anchor, GtkTextLayout *layout); static GtkTextViewChild* text_view_child_new_window (GtkWidget *child, GtkTextWindowType type, gint x, gint y); static void text_view_child_free (GtkTextViewChild *child); static void text_view_child_set_parent_window (GtkTextView *text_view, GtkTextViewChild *child); struct _GtkTextWindow { GtkTextWindowType type; GtkWidget *widget; GdkWindow *window; GdkWindow *bin_window; GtkCssNode *css_node; GtkRequisition requisition; GdkRectangle allocation; }; static GtkTextWindow *text_window_new (GtkTextWindowType type, GtkWidget *widget, gint width_request, gint height_request); static void text_window_free (GtkTextWindow *win); static void text_window_realize (GtkTextWindow *win, GtkWidget *widget); static void text_window_unrealize (GtkTextWindow *win); static void text_window_size_allocate (GtkTextWindow *win, GdkRectangle *rect); static void text_window_scroll (GtkTextWindow *win, gint dx, gint dy); static void text_window_invalidate_rect (GtkTextWindow *win, GdkRectangle *rect); static void text_window_invalidate_cursors (GtkTextWindow *win); static gint text_window_get_width (GtkTextWindow *win); static gint text_window_get_height (GtkTextWindow *win); static guint signals[LAST_SIGNAL] = { 0 }; G_DEFINE_TYPE_WITH_CODE (GtkTextView, gtk_text_view, GTK_TYPE_CONTAINER, G_ADD_PRIVATE (GtkTextView) G_IMPLEMENT_INTERFACE (GTK_TYPE_SCROLLABLE, NULL)) static void add_move_binding (GtkBindingSet *binding_set, guint keyval, guint modmask, GtkMovementStep step, gint count) { g_assert ((modmask & GDK_SHIFT_MASK) == 0); gtk_binding_entry_add_signal (binding_set, keyval, modmask, "move-cursor", 3, G_TYPE_ENUM, step, G_TYPE_INT, count, G_TYPE_BOOLEAN, FALSE); /* Selection-extending version */ gtk_binding_entry_add_signal (binding_set, keyval, modmask | GDK_SHIFT_MASK, "move-cursor", 3, G_TYPE_ENUM, step, G_TYPE_INT, count, G_TYPE_BOOLEAN, TRUE); } static void gtk_text_view_class_init (GtkTextViewClass *klass) { GObjectClass *gobject_class = G_OBJECT_CLASS (klass); GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass); GtkContainerClass *container_class = GTK_CONTAINER_CLASS (klass); GtkBindingSet *binding_set; /* Default handlers and virtual methods */ gobject_class->set_property = gtk_text_view_set_property; gobject_class->get_property = gtk_text_view_get_property; gobject_class->finalize = gtk_text_view_finalize; widget_class->destroy = gtk_text_view_destroy; widget_class->map = gtk_text_view_map; widget_class->unmap = gtk_text_view_unmap; widget_class->realize = gtk_text_view_realize; widget_class->unrealize = gtk_text_view_unrealize; widget_class->style_updated = gtk_text_view_style_updated; widget_class->direction_changed = gtk_text_view_direction_changed; widget_class->state_flags_changed = gtk_text_view_state_flags_changed; widget_class->get_preferred_width = gtk_text_view_get_preferred_width; widget_class->get_preferred_height = gtk_text_view_get_preferred_height; widget_class->size_allocate = gtk_text_view_size_allocate; widget_class->event = gtk_text_view_event; widget_class->key_press_event = gtk_text_view_key_press_event; widget_class->key_release_event = gtk_text_view_key_release_event; widget_class->focus_in_event = gtk_text_view_focus_in_event; widget_class->focus_out_event = gtk_text_view_focus_out_event; widget_class->motion_notify_event = gtk_text_view_motion_event; widget_class->draw = gtk_text_view_draw; widget_class->focus = gtk_text_view_focus; widget_class->drag_begin = gtk_text_view_drag_begin; widget_class->drag_end = gtk_text_view_drag_end; widget_class->drag_data_get = gtk_text_view_drag_data_get; widget_class->drag_data_delete = gtk_text_view_drag_data_delete; widget_class->drag_leave = gtk_text_view_drag_leave; widget_class->drag_motion = gtk_text_view_drag_motion; widget_class->drag_drop = gtk_text_view_drag_drop; widget_class->drag_data_received = gtk_text_view_drag_data_received; widget_class->popup_menu = gtk_text_view_popup_menu; widget_class->queue_draw_region = gtk_text_view_queue_draw_region; container_class->add = gtk_text_view_add; container_class->remove = gtk_text_view_remove; container_class->forall = gtk_text_view_forall; klass->move_cursor = gtk_text_view_move_cursor; klass->set_anchor = gtk_text_view_set_anchor; klass->insert_at_cursor = gtk_text_view_insert_at_cursor; klass->delete_from_cursor = gtk_text_view_delete_from_cursor; klass->backspace = gtk_text_view_backspace; klass->cut_clipboard = gtk_text_view_cut_clipboard; klass->copy_clipboard = gtk_text_view_copy_clipboard; klass->paste_clipboard = gtk_text_view_paste_clipboard; klass->toggle_overwrite = gtk_text_view_toggle_overwrite; klass->create_buffer = gtk_text_view_create_buffer; klass->extend_selection = gtk_text_view_extend_selection; klass->insert_emoji = gtk_text_view_insert_emoji; /* * Properties */ g_object_class_install_property (gobject_class, PROP_PIXELS_ABOVE_LINES, g_param_spec_int ("pixels-above-lines", P_("Pixels Above Lines"), P_("Pixels of blank space above paragraphs"), 0, G_MAXINT, 0, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY)); g_object_class_install_property (gobject_class, PROP_PIXELS_BELOW_LINES, g_param_spec_int ("pixels-below-lines", P_("Pixels Below Lines"), P_("Pixels of blank space below paragraphs"), 0, G_MAXINT, 0, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY)); g_object_class_install_property (gobject_class, PROP_PIXELS_INSIDE_WRAP, g_param_spec_int ("pixels-inside-wrap", P_("Pixels Inside Wrap"), P_("Pixels of blank space between wrapped lines in a paragraph"), 0, G_MAXINT, 0, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY)); g_object_class_install_property (gobject_class, PROP_EDITABLE, g_param_spec_boolean ("editable", P_("Editable"), P_("Whether the text can be modified by the user"), TRUE, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY)); g_object_class_install_property (gobject_class, PROP_WRAP_MODE, g_param_spec_enum ("wrap-mode", P_("Wrap Mode"), P_("Whether to wrap lines never, at word boundaries, or at character boundaries"), GTK_TYPE_WRAP_MODE, GTK_WRAP_NONE, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY)); g_object_class_install_property (gobject_class, PROP_JUSTIFICATION, g_param_spec_enum ("justification", P_("Justification"), P_("Left, right, or center justification"), GTK_TYPE_JUSTIFICATION, GTK_JUSTIFY_LEFT, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY)); /** * GtkTextView:left-margin: * * The default left margin for text in the text view. * Tags in the buffer may override the default. * * Note that this property is confusingly named. In CSS terms, * the value set here is padding, and it is applied in addition * to the padding from the theme. * * Don't confuse this property with #GtkWidget:margin-left. */ g_object_class_install_property (gobject_class, PROP_LEFT_MARGIN, g_param_spec_int ("left-margin", P_("Left Margin"), P_("Width of the left margin in pixels"), 0, G_MAXINT, 0, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY)); /** * GtkTextView:right-margin: * * The default right margin for text in the text view. * Tags in the buffer may override the default. * * Note that this property is confusingly named. In CSS terms, * the value set here is padding, and it is applied in addition * to the padding from the theme. * * Don't confuse this property with #GtkWidget:margin-right. */ g_object_class_install_property (gobject_class, PROP_RIGHT_MARGIN, g_param_spec_int ("right-margin", P_("Right Margin"), P_("Width of the right margin in pixels"), 0, G_MAXINT, 0, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY)); /** * GtkTextView:top-margin: * * The top margin for text in the text view. * * Note that this property is confusingly named. In CSS terms, * the value set here is padding, and it is applied in addition * to the padding from the theme. * * Don't confuse this property with #GtkWidget:margin-top. * * Since: 3.18 */ g_object_class_install_property (gobject_class, PROP_TOP_MARGIN, g_param_spec_int ("top-margin", P_("Top Margin"), P_("Height of the top margin in pixels"), 0, G_MAXINT, 0, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY)); /** * GtkTextView:bottom-margin: * * The bottom margin for text in the text view. * * Note that this property is confusingly named. In CSS terms, * the value set here is padding, and it is applied in addition * to the padding from the theme. * * Don't confuse this property with #GtkWidget:margin-bottom. * * Since: 3.18 */ g_object_class_install_property (gobject_class, PROP_BOTTOM_MARGIN, g_param_spec_int ("bottom-margin", P_("Bottom Margin"), P_("Height of the bottom margin in pixels"), 0, G_MAXINT, 0, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY)); g_object_class_install_property (gobject_class, PROP_INDENT, g_param_spec_int ("indent", P_("Indent"), P_("Amount to indent the paragraph, in pixels"), G_MININT, G_MAXINT, 0, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY)); g_object_class_install_property (gobject_class, PROP_TABS, g_param_spec_boxed ("tabs", P_("Tabs"), P_("Custom tabs for this text"), PANGO_TYPE_TAB_ARRAY, GTK_PARAM_READWRITE)); g_object_class_install_property (gobject_class, PROP_CURSOR_VISIBLE, g_param_spec_boolean ("cursor-visible", P_("Cursor Visible"), P_("If the insertion cursor is shown"), TRUE, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY)); g_object_class_install_property (gobject_class, PROP_BUFFER, g_param_spec_object ("buffer", P_("Buffer"), P_("The buffer which is displayed"), GTK_TYPE_TEXT_BUFFER, GTK_PARAM_READWRITE)); g_object_class_install_property (gobject_class, PROP_OVERWRITE, g_param_spec_boolean ("overwrite", P_("Overwrite mode"), P_("Whether entered text overwrites existing contents"), FALSE, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY)); g_object_class_install_property (gobject_class, PROP_ACCEPTS_TAB, g_param_spec_boolean ("accepts-tab", P_("Accepts tab"), P_("Whether Tab will result in a tab character being entered"), TRUE, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY)); /** * GtkTextView:im-module: * * Which IM (input method) module should be used for this text_view. * See #GtkIMContext. * * Setting this to a non-%NULL value overrides the * system-wide IM module setting. See the GtkSettings * #GtkSettings:gtk-im-module property. * * Since: 2.16 */ g_object_class_install_property (gobject_class, PROP_IM_MODULE, g_param_spec_string ("im-module", P_("IM module"), P_("Which IM module should be used"), NULL, GTK_PARAM_READWRITE)); /** * GtkTextView:input-purpose: * * The purpose of this text field. * * This property can be used by on-screen keyboards and other input * methods to adjust their behaviour. * * Since: 3.6 */ g_object_class_install_property (gobject_class, PROP_INPUT_PURPOSE, g_param_spec_enum ("input-purpose", P_("Purpose"), P_("Purpose of the text field"), GTK_TYPE_INPUT_PURPOSE, GTK_INPUT_PURPOSE_FREE_FORM, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY)); /** * GtkTextView:input-hints: * * Additional hints (beyond #GtkTextView:input-purpose) that * allow input methods to fine-tune their behaviour. * * Since: 3.6 */ g_object_class_install_property (gobject_class, PROP_INPUT_HINTS, g_param_spec_flags ("input-hints", P_("hints"), P_("Hints for the text field behaviour"), GTK_TYPE_INPUT_HINTS, GTK_INPUT_HINT_NONE, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY)); /** * GtkTextView:populate-all: * * If :populate-all is %TRUE, the #GtkTextView::populate-popup * signal is also emitted for touch popups. * * Since: 3.8 */ g_object_class_install_property (gobject_class, PROP_POPULATE_ALL, g_param_spec_boolean ("populate-all", P_("Populate all"), P_("Whether to emit ::populate-popup for touch popups"), FALSE, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY)); /** * GtkTextview:monospace: * * If %TRUE, set the %GTK_STYLE_CLASS_MONOSPACE style class on the * text view to indicate that a monospace font is desired. * * Since: 3.16 */ g_object_class_install_property (gobject_class, PROP_MONOSPACE, g_param_spec_boolean ("monospace", P_("Monospace"), P_("Whether to use a monospace font"), FALSE, GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY)); /* GtkScrollable interface */ g_object_class_override_property (gobject_class, PROP_HADJUSTMENT, "hadjustment"); g_object_class_override_property (gobject_class, PROP_VADJUSTMENT, "vadjustment"); g_object_class_override_property (gobject_class, PROP_HSCROLL_POLICY, "hscroll-policy"); g_object_class_override_property (gobject_class, PROP_VSCROLL_POLICY, "vscroll-policy"); /* * Style properties */ G_GNUC_BEGIN_IGNORE_DEPRECATIONS gtk_widget_class_install_style_property (widget_class, g_param_spec_boxed ("error-underline-color", P_("Error underline color"), P_("Color with which to draw error-indication underlines"), GDK_TYPE_COLOR, GTK_PARAM_READABLE)); G_GNUC_END_IGNORE_DEPRECATIONS /* * Signals */ /** * GtkTextView::move-cursor: * @text_view: the object which received the signal * @step: the granularity of the move, as a #GtkMovementStep * @count: the number of @step units to move * @extend_selection: %TRUE if the move should extend the selection * * The ::move-cursor signal is a * [keybinding signal][GtkBindingSignal] * which gets emitted when the user initiates a cursor movement. * If the cursor is not visible in @text_view, this signal causes * the viewport to be moved instead. * * Applications should not connect to it, but may emit it with * g_signal_emit_by_name() if they need to control the cursor * programmatically. * * The default bindings for this signal come in two variants, * the variant with the Shift modifier extends the selection, * the variant without the Shift modifer does not. * There are too many key combinations to list them all here. * - Arrow keys move by individual characters/lines * - Ctrl-arrow key combinations move by words/paragraphs * - Home/End keys move to the ends of the buffer * - PageUp/PageDown keys move vertically by pages * - Ctrl-PageUp/PageDown keys move horizontally by pages */ signals[MOVE_CURSOR] = g_signal_new (I_("move-cursor"), G_OBJECT_CLASS_TYPE (gobject_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GtkTextViewClass, move_cursor), NULL, NULL, _gtk_marshal_VOID__ENUM_INT_BOOLEAN, G_TYPE_NONE, 3, GTK_TYPE_MOVEMENT_STEP, G_TYPE_INT, G_TYPE_BOOLEAN); /** * GtkTextView::move-viewport: * @text_view: the object which received the signal * @step: the granularity of the movement, as a #GtkScrollStep * @count: the number of @step units to move * * The ::move-viewport signal is a * [keybinding signal][GtkBindingSignal] * which can be bound to key combinations to allow the user * to move the viewport, i.e. change what part of the text view * is visible in a containing scrolled window. * * There are no default bindings for this signal. */ signals[MOVE_VIEWPORT] = g_signal_new_class_handler (I_("move-viewport"), G_OBJECT_CLASS_TYPE (gobject_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_CALLBACK (gtk_text_view_move_viewport), NULL, NULL, _gtk_marshal_VOID__ENUM_INT, G_TYPE_NONE, 2, GTK_TYPE_SCROLL_STEP, G_TYPE_INT); /** * GtkTextView::set-anchor: * @text_view: the object which received the signal * * The ::set-anchor signal is a * [keybinding signal][GtkBindingSignal] * which gets emitted when the user initiates setting the "anchor" * mark. The "anchor" mark gets placed at the same position as the * "insert" mark. * * This signal has no default bindings. */ signals[SET_ANCHOR] = g_signal_new (I_("set-anchor"), G_OBJECT_CLASS_TYPE (gobject_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GtkTextViewClass, set_anchor), NULL, NULL, NULL, G_TYPE_NONE, 0); /** * GtkTextView::insert-at-cursor: * @text_view: the object which received the signal * @string: the string to insert * * The ::insert-at-cursor signal is a * [keybinding signal][GtkBindingSignal] * which gets emitted when the user initiates the insertion of a * fixed string at the cursor. * * This signal has no default bindings. */ signals[INSERT_AT_CURSOR] = g_signal_new (I_("insert-at-cursor"), G_OBJECT_CLASS_TYPE (gobject_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GtkTextViewClass, insert_at_cursor), NULL, NULL, NULL, G_TYPE_NONE, 1, G_TYPE_STRING); /** * GtkTextView::delete-from-cursor: * @text_view: the object which received the signal * @type: the granularity of the deletion, as a #GtkDeleteType * @count: the number of @type units to delete * * The ::delete-from-cursor signal is a * [keybinding signal][GtkBindingSignal] * which gets emitted when the user initiates a text deletion. * * If the @type is %GTK_DELETE_CHARS, GTK+ deletes the selection * if there is one, otherwise it deletes the requested number * of characters. * * The default bindings for this signal are * Delete for deleting a character, Ctrl-Delete for * deleting a word and Ctrl-Backspace for deleting a word * backwords. */ signals[DELETE_FROM_CURSOR] = g_signal_new (I_("delete-from-cursor"), G_OBJECT_CLASS_TYPE (gobject_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GtkTextViewClass, delete_from_cursor), NULL, NULL, _gtk_marshal_VOID__ENUM_INT, G_TYPE_NONE, 2, GTK_TYPE_DELETE_TYPE, G_TYPE_INT); /** * GtkTextView::backspace: * @text_view: the object which received the signal * * The ::backspace signal is a * [keybinding signal][GtkBindingSignal] * which gets emitted when the user asks for it. * * The default bindings for this signal are * Backspace and Shift-Backspace. */ signals[BACKSPACE] = g_signal_new (I_("backspace"), G_OBJECT_CLASS_TYPE (gobject_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GtkTextViewClass, backspace), NULL, NULL, NULL, G_TYPE_NONE, 0); /** * GtkTextView::cut-clipboard: * @text_view: the object which received the signal * * The ::cut-clipboard signal is a * [keybinding signal][GtkBindingSignal] * which gets emitted to cut the selection to the clipboard. * * The default bindings for this signal are * Ctrl-x and Shift-Delete. */ signals[CUT_CLIPBOARD] = g_signal_new (I_("cut-clipboard"), G_OBJECT_CLASS_TYPE (gobject_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GtkTextViewClass, cut_clipboard), NULL, NULL, NULL, G_TYPE_NONE, 0); /** * GtkTextView::copy-clipboard: * @text_view: the object which received the signal * * The ::copy-clipboard signal is a * [keybinding signal][GtkBindingSignal] * which gets emitted to copy the selection to the clipboard. * * The default bindings for this signal are * Ctrl-c and Ctrl-Insert. */ signals[COPY_CLIPBOARD] = g_signal_new (I_("copy-clipboard"), G_OBJECT_CLASS_TYPE (gobject_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GtkTextViewClass, copy_clipboard), NULL, NULL, NULL, G_TYPE_NONE, 0); /** * GtkTextView::paste-clipboard: * @text_view: the object which received the signal * * The ::paste-clipboard signal is a * [keybinding signal][GtkBindingSignal] * which gets emitted to paste the contents of the clipboard * into the text view. * * The default bindings for this signal are * Ctrl-v and Shift-Insert. */ signals[PASTE_CLIPBOARD] = g_signal_new (I_("paste-clipboard"), G_OBJECT_CLASS_TYPE (gobject_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GtkTextViewClass, paste_clipboard), NULL, NULL, NULL, G_TYPE_NONE, 0); /** * GtkTextView::toggle-overwrite: * @text_view: the object which received the signal * * The ::toggle-overwrite signal is a * [keybinding signal][GtkBindingSignal] * which gets emitted to toggle the overwrite mode of the text view. * * The default bindings for this signal is Insert. */ signals[TOGGLE_OVERWRITE] = g_signal_new (I_("toggle-overwrite"), G_OBJECT_CLASS_TYPE (gobject_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GtkTextViewClass, toggle_overwrite), NULL, NULL, NULL, G_TYPE_NONE, 0); /** * GtkTextView::populate-popup: * @text_view: The text view on which the signal is emitted * @popup: the container that is being populated * * The ::populate-popup signal gets emitted before showing the * context menu of the text view. * * If you need to add items to the context menu, connect * to this signal and append your items to the @popup, which * will be a #GtkMenu in this case. * * If #GtkTextView:populate-all is %TRUE, this signal will * also be emitted to populate touch popups. In this case, * @popup will be a different container, e.g. a #GtkToolbar. * * The signal handler should not make assumptions about the * type of @widget, but check whether @popup is a #GtkMenu * or #GtkToolbar or another kind of container. */ signals[POPULATE_POPUP] = g_signal_new (I_("populate-popup"), G_OBJECT_CLASS_TYPE (gobject_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GtkTextViewClass, populate_popup), NULL, NULL, NULL, G_TYPE_NONE, 1, GTK_TYPE_WIDGET); /** * GtkTextView::select-all: * @text_view: the object which received the signal * @select: %TRUE to select, %FALSE to unselect * * The ::select-all signal is a * [keybinding signal][GtkBindingSignal] * which gets emitted to select or unselect the complete * contents of the text view. * * The default bindings for this signal are Ctrl-a and Ctrl-/ * for selecting and Shift-Ctrl-a and Ctrl-\ for unselecting. */ signals[SELECT_ALL] = g_signal_new_class_handler (I_("select-all"), G_OBJECT_CLASS_TYPE (gobject_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_CALLBACK (gtk_text_view_select_all), NULL, NULL, NULL, G_TYPE_NONE, 1, G_TYPE_BOOLEAN); /** * GtkTextView::toggle-cursor-visible: * @text_view: the object which received the signal * * The ::toggle-cursor-visible signal is a * [keybinding signal][GtkBindingSignal] * which gets emitted to toggle the #GtkTextView:cursor-visible * property. * * The default binding for this signal is F7. */ signals[TOGGLE_CURSOR_VISIBLE] = g_signal_new_class_handler (I_("toggle-cursor-visible"), G_OBJECT_CLASS_TYPE (gobject_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_CALLBACK (gtk_text_view_toggle_cursor_visible), NULL, NULL, NULL, G_TYPE_NONE, 0); /** * GtkTextView::preedit-changed: * @text_view: the object which received the signal * @preedit: the current preedit string * * If an input method is used, the typed text will not immediately * be committed to the buffer. So if you are interested in the text, * connect to this signal. * * This signal is only emitted if the text at the given position * is actually editable. * * Since: 2.20 */ signals[PREEDIT_CHANGED] = g_signal_new_class_handler (I_("preedit-changed"), G_OBJECT_CLASS_TYPE (gobject_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, NULL, NULL, NULL, NULL, G_TYPE_NONE, 1, G_TYPE_STRING); /** * GtkTextView::extend-selection: * @text_view: the object which received the signal * @granularity: the granularity type * @location: the location where to extend the selection * @start: where the selection should start * @end: where the selection should end * * The ::extend-selection signal is emitted when the selection needs to be * extended at @location. * * Returns: %GDK_EVENT_STOP to stop other handlers from being invoked for the * event. %GDK_EVENT_PROPAGATE to propagate the event further. * Since: 3.16 */ signals[EXTEND_SELECTION] = g_signal_new (I_("extend-selection"), G_OBJECT_CLASS_TYPE (gobject_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GtkTextViewClass, extend_selection), _gtk_boolean_handled_accumulator, NULL, NULL, /* generic marshaller */ G_TYPE_BOOLEAN, 4, GTK_TYPE_TEXT_EXTEND_SELECTION, GTK_TYPE_TEXT_ITER | G_SIGNAL_TYPE_STATIC_SCOPE, GTK_TYPE_TEXT_ITER | G_SIGNAL_TYPE_STATIC_SCOPE, GTK_TYPE_TEXT_ITER | G_SIGNAL_TYPE_STATIC_SCOPE); /** * GtkTextView::insert-emoji: * @text_view: the object which received the signal * * The ::insert-emoji signal is a * [keybinding signal][GtkBindingSignal] * which gets emitted to present the Emoji chooser for the @text_view. * * The default bindings for this signal are Ctrl-. and Ctrl-; * * Since: 3.22.27 */ signals[INSERT_EMOJI] = g_signal_new (I_("insert-emoji"), G_OBJECT_CLASS_TYPE (gobject_class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GtkTextViewClass, insert_emoji), NULL, NULL, NULL, G_TYPE_NONE, 0); /* * Key bindings */ binding_set = gtk_binding_set_by_class (klass); /* Moving the insertion point */ add_move_binding (binding_set, GDK_KEY_Right, 0, GTK_MOVEMENT_VISUAL_POSITIONS, 1); add_move_binding (binding_set, GDK_KEY_KP_Right, 0, GTK_MOVEMENT_VISUAL_POSITIONS, 1); add_move_binding (binding_set, GDK_KEY_Left, 0, GTK_MOVEMENT_VISUAL_POSITIONS, -1); add_move_binding (binding_set, GDK_KEY_KP_Left, 0, GTK_MOVEMENT_VISUAL_POSITIONS, -1); add_move_binding (binding_set, GDK_KEY_Right, GDK_CONTROL_MASK, GTK_MOVEMENT_WORDS, 1); add_move_binding (binding_set, GDK_KEY_KP_Right, GDK_CONTROL_MASK, GTK_MOVEMENT_WORDS, 1); add_move_binding (binding_set, GDK_KEY_Left, GDK_CONTROL_MASK, GTK_MOVEMENT_WORDS, -1); add_move_binding (binding_set, GDK_KEY_KP_Left, GDK_CONTROL_MASK, GTK_MOVEMENT_WORDS, -1); add_move_binding (binding_set, GDK_KEY_Up, 0, GTK_MOVEMENT_DISPLAY_LINES, -1); add_move_binding (binding_set, GDK_KEY_KP_Up, 0, GTK_MOVEMENT_DISPLAY_LINES, -1); add_move_binding (binding_set, GDK_KEY_Down, 0, GTK_MOVEMENT_DISPLAY_LINES, 1); add_move_binding (binding_set, GDK_KEY_KP_Down, 0, GTK_MOVEMENT_DISPLAY_LINES, 1); add_move_binding (binding_set, GDK_KEY_Up, GDK_CONTROL_MASK, GTK_MOVEMENT_PARAGRAPHS, -1); add_move_binding (binding_set, GDK_KEY_KP_Up, GDK_CONTROL_MASK, GTK_MOVEMENT_PARAGRAPHS, -1); add_move_binding (binding_set, GDK_KEY_Down, GDK_CONTROL_MASK, GTK_MOVEMENT_PARAGRAPHS, 1); add_move_binding (binding_set, GDK_KEY_KP_Down, GDK_CONTROL_MASK, GTK_MOVEMENT_PARAGRAPHS, 1); add_move_binding (binding_set, GDK_KEY_Home, 0, GTK_MOVEMENT_DISPLAY_LINE_ENDS, -1); add_move_binding (binding_set, GDK_KEY_KP_Home, 0, GTK_MOVEMENT_DISPLAY_LINE_ENDS, -1); add_move_binding (binding_set, GDK_KEY_End, 0, GTK_MOVEMENT_DISPLAY_LINE_ENDS, 1); add_move_binding (binding_set, GDK_KEY_KP_End, 0, GTK_MOVEMENT_DISPLAY_LINE_ENDS, 1); add_move_binding (binding_set, GDK_KEY_Home, GDK_CONTROL_MASK, GTK_MOVEMENT_BUFFER_ENDS, -1); add_move_binding (binding_set, GDK_KEY_KP_Home, GDK_CONTROL_MASK, GTK_MOVEMENT_BUFFER_ENDS, -1); add_move_binding (binding_set, GDK_KEY_End, GDK_CONTROL_MASK, GTK_MOVEMENT_BUFFER_ENDS, 1); add_move_binding (binding_set, GDK_KEY_KP_End, GDK_CONTROL_MASK, GTK_MOVEMENT_BUFFER_ENDS, 1); add_move_binding (binding_set, GDK_KEY_Page_Up, 0, GTK_MOVEMENT_PAGES, -1); add_move_binding (binding_set, GDK_KEY_KP_Page_Up, 0, GTK_MOVEMENT_PAGES, -1); add_move_binding (binding_set, GDK_KEY_Page_Down, 0, GTK_MOVEMENT_PAGES, 1); add_move_binding (binding_set, GDK_KEY_KP_Page_Down, 0, GTK_MOVEMENT_PAGES, 1); add_move_binding (binding_set, GDK_KEY_Page_Up, GDK_CONTROL_MASK, GTK_MOVEMENT_HORIZONTAL_PAGES, -1); add_move_binding (binding_set, GDK_KEY_KP_Page_Up, GDK_CONTROL_MASK, GTK_MOVEMENT_HORIZONTAL_PAGES, -1); add_move_binding (binding_set, GDK_KEY_Page_Down, GDK_CONTROL_MASK, GTK_MOVEMENT_HORIZONTAL_PAGES, 1); add_move_binding (binding_set, GDK_KEY_KP_Page_Down, GDK_CONTROL_MASK, GTK_MOVEMENT_HORIZONTAL_PAGES, 1); /* Select all */ gtk_binding_entry_add_signal (binding_set, GDK_KEY_a, GDK_CONTROL_MASK, "select-all", 1, G_TYPE_BOOLEAN, TRUE); gtk_binding_entry_add_signal (binding_set, GDK_KEY_slash, GDK_CONTROL_MASK, "select-all", 1, G_TYPE_BOOLEAN, TRUE); /* Unselect all */ gtk_binding_entry_add_signal (binding_set, GDK_KEY_backslash, GDK_CONTROL_MASK, "select-all", 1, G_TYPE_BOOLEAN, FALSE); gtk_binding_entry_add_signal (binding_set, GDK_KEY_a, GDK_SHIFT_MASK | GDK_CONTROL_MASK, "select-all", 1, G_TYPE_BOOLEAN, FALSE); /* Deleting text */ gtk_binding_entry_add_signal (binding_set, GDK_KEY_Delete, 0, "delete-from-cursor", 2, G_TYPE_ENUM, GTK_DELETE_CHARS, G_TYPE_INT, 1); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Delete, 0, "delete-from-cursor", 2, G_TYPE_ENUM, GTK_DELETE_CHARS, G_TYPE_INT, 1); gtk_binding_entry_add_signal (binding_set, GDK_KEY_BackSpace, 0, "backspace", 0); /* Make this do the same as Backspace, to help with mis-typing */ gtk_binding_entry_add_signal (binding_set, GDK_KEY_BackSpace, GDK_SHIFT_MASK, "backspace", 0); gtk_binding_entry_add_signal (binding_set, GDK_KEY_Delete, GDK_CONTROL_MASK, "delete-from-cursor", 2, G_TYPE_ENUM, GTK_DELETE_WORD_ENDS, G_TYPE_INT, 1); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Delete, GDK_CONTROL_MASK, "delete-from-cursor", 2, G_TYPE_ENUM, GTK_DELETE_WORD_ENDS, G_TYPE_INT, 1); gtk_binding_entry_add_signal (binding_set, GDK_KEY_BackSpace, GDK_CONTROL_MASK, "delete-from-cursor", 2, G_TYPE_ENUM, GTK_DELETE_WORD_ENDS, G_TYPE_INT, -1); gtk_binding_entry_add_signal (binding_set, GDK_KEY_Delete, GDK_SHIFT_MASK | GDK_CONTROL_MASK, "delete-from-cursor", 2, G_TYPE_ENUM, GTK_DELETE_PARAGRAPH_ENDS, G_TYPE_INT, 1); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Delete, GDK_SHIFT_MASK | GDK_CONTROL_MASK, "delete-from-cursor", 2, G_TYPE_ENUM, GTK_DELETE_PARAGRAPH_ENDS, G_TYPE_INT, 1); gtk_binding_entry_add_signal (binding_set, GDK_KEY_BackSpace, GDK_SHIFT_MASK | GDK_CONTROL_MASK, "delete-from-cursor", 2, G_TYPE_ENUM, GTK_DELETE_PARAGRAPH_ENDS, G_TYPE_INT, -1); /* Cut/copy/paste */ gtk_binding_entry_add_signal (binding_set, GDK_KEY_x, GDK_CONTROL_MASK, "cut-clipboard", 0); gtk_binding_entry_add_signal (binding_set, GDK_KEY_c, GDK_CONTROL_MASK, "copy-clipboard", 0); gtk_binding_entry_add_signal (binding_set, GDK_KEY_v, GDK_CONTROL_MASK, "paste-clipboard", 0); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Delete, GDK_SHIFT_MASK, "cut-clipboard", 0); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Insert, GDK_CONTROL_MASK, "copy-clipboard", 0); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Insert, GDK_SHIFT_MASK, "paste-clipboard", 0); gtk_binding_entry_add_signal (binding_set, GDK_KEY_Delete, GDK_SHIFT_MASK, "cut-clipboard", 0); gtk_binding_entry_add_signal (binding_set, GDK_KEY_Insert, GDK_CONTROL_MASK, "copy-clipboard", 0); gtk_binding_entry_add_signal (binding_set, GDK_KEY_Insert, GDK_SHIFT_MASK, "paste-clipboard", 0); /* Overwrite */ gtk_binding_entry_add_signal (binding_set, GDK_KEY_Insert, 0, "toggle-overwrite", 0); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Insert, 0, "toggle-overwrite", 0); /* Emoji */ gtk_binding_entry_add_signal (binding_set, GDK_KEY_period, GDK_CONTROL_MASK, "insert-emoji", 0); gtk_binding_entry_add_signal (binding_set, GDK_KEY_semicolon, GDK_CONTROL_MASK, "insert-emoji", 0); /* Caret mode */ gtk_binding_entry_add_signal (binding_set, GDK_KEY_F7, 0, "toggle-cursor-visible", 0); /* Control-tab focus motion */ gtk_binding_entry_add_signal (binding_set, GDK_KEY_Tab, GDK_CONTROL_MASK, "move-focus", 1, GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_FORWARD); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Tab, GDK_CONTROL_MASK, "move-focus", 1, GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_FORWARD); gtk_binding_entry_add_signal (binding_set, GDK_KEY_Tab, GDK_SHIFT_MASK | GDK_CONTROL_MASK, "move-focus", 1, GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_BACKWARD); gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Tab, GDK_SHIFT_MASK | GDK_CONTROL_MASK, "move-focus", 1, GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_BACKWARD); gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_TEXT_VIEW_ACCESSIBLE); gtk_widget_class_set_css_name (widget_class, "textview"); quark_text_selection_data = g_quark_from_static_string ("gtk-text-view-text-selection-data"); quark_gtk_signal = g_quark_from_static_string ("gtk-signal"); quark_text_view_child = g_quark_from_static_string ("gtk-text-view-child"); } static void gtk_text_view_init (GtkTextView *text_view) { GtkWidget *widget = GTK_WIDGET (text_view); GtkTargetList *target_list; GtkTextViewPrivate *priv; GtkStyleContext *context; text_view->priv = gtk_text_view_get_instance_private (text_view); priv = text_view->priv; gtk_widget_set_can_focus (widget, TRUE); priv->pixel_cache = _gtk_pixel_cache_new (); context = gtk_widget_get_style_context (GTK_WIDGET (text_view)); gtk_style_context_add_class (context, GTK_STYLE_CLASS_VIEW); /* Set up default style */ priv->wrap_mode = GTK_WRAP_NONE; priv->pixels_above_lines = 0; priv->pixels_below_lines = 0; priv->pixels_inside_wrap = 0; priv->justify = GTK_JUSTIFY_LEFT; priv->indent = 0; priv->tabs = NULL; priv->editable = TRUE; priv->scroll_after_paste = TRUE; gtk_drag_dest_set (widget, 0, NULL, 0, GDK_ACTION_COPY | GDK_ACTION_MOVE); target_list = gtk_target_list_new (NULL, 0); gtk_drag_dest_set_target_list (widget, target_list); gtk_target_list_unref (target_list); priv->virtual_cursor_x = -1; priv->virtual_cursor_y = -1; /* This object is completely private. No external entity can gain a reference * to it; so we create it here and destroy it in finalize (). */ priv->im_context = gtk_im_multicontext_new (); g_signal_connect (priv->im_context, "commit", G_CALLBACK (gtk_text_view_commit_handler), text_view); g_signal_connect (priv->im_context, "preedit-changed", G_CALLBACK (gtk_text_view_preedit_changed_handler), text_view); g_signal_connect (priv->im_context, "retrieve-surrounding", G_CALLBACK (gtk_text_view_retrieve_surrounding_handler), text_view); g_signal_connect (priv->im_context, "delete-surrounding", G_CALLBACK (gtk_text_view_delete_surrounding_handler), text_view); priv->cursor_visible = TRUE; priv->accepts_tab = TRUE; priv->text_window = text_window_new (GTK_TEXT_WINDOW_TEXT, widget, 200, 200); /* We handle all our own redrawing */ gtk_widget_set_redraw_on_allocate (widget, FALSE); priv->multipress_gesture = gtk_gesture_multi_press_new (widget); gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (priv->multipress_gesture), 0); g_signal_connect (priv->multipress_gesture, "pressed", G_CALLBACK (gtk_text_view_multipress_gesture_pressed), widget); priv->drag_gesture = gtk_gesture_drag_new (widget); g_signal_connect (priv->drag_gesture, "drag-update", G_CALLBACK (gtk_text_view_drag_gesture_update), widget); g_signal_connect (priv->drag_gesture, "drag-end", G_CALLBACK (gtk_text_view_drag_gesture_end), widget); priv->selection_node = gtk_css_node_new (); gtk_css_node_set_name (priv->selection_node, I_("selection")); gtk_css_node_set_parent (priv->selection_node, priv->text_window->css_node); gtk_css_node_set_state (priv->selection_node, gtk_css_node_get_state (priv->text_window->css_node) & ~GTK_STATE_FLAG_DROP_ACTIVE); gtk_css_node_set_visible (priv->selection_node, FALSE); g_object_unref (priv->selection_node); } GtkCssNode * gtk_text_view_get_text_node (GtkTextView *text_view) { return text_view->priv->text_window->css_node; } GtkCssNode * gtk_text_view_get_selection_node (GtkTextView *text_view) { return text_view->priv->selection_node; } static void _gtk_text_view_ensure_text_handles (GtkTextView *text_view) { GtkTextViewPrivate *priv = text_view->priv; if (priv->text_handle) return; priv->text_handle = _gtk_text_handle_new (GTK_WIDGET (text_view)); g_signal_connect (priv->text_handle, "drag-started", G_CALLBACK (gtk_text_view_handle_drag_started), text_view); g_signal_connect (priv->text_handle, "handle-dragged", G_CALLBACK (gtk_text_view_handle_dragged), text_view); g_signal_connect (priv->text_handle, "drag-finished", G_CALLBACK (gtk_text_view_handle_drag_finished), text_view); } static void _gtk_text_view_ensure_magnifier (GtkTextView *text_view) { GtkTextViewPrivate *priv = text_view->priv; if (priv->magnifier_popover) return; priv->magnifier = _gtk_magnifier_new (GTK_WIDGET (text_view)); _gtk_magnifier_set_magnification (GTK_MAGNIFIER (priv->magnifier), 2.0); priv->magnifier_popover = gtk_popover_new (GTK_WIDGET (text_view)); gtk_style_context_add_class (gtk_widget_get_style_context (priv->magnifier_popover), "magnifier"); gtk_popover_set_modal (GTK_POPOVER (priv->magnifier_popover), FALSE); gtk_container_add (GTK_CONTAINER (priv->magnifier_popover), priv->magnifier); gtk_container_set_border_width (GTK_CONTAINER (priv->magnifier_popover), 4); gtk_widget_show (priv->magnifier); } /** * gtk_text_view_new: * * Creates a new #GtkTextView. If you don’t call gtk_text_view_set_buffer() * before using the text view, an empty default buffer will be created * for you. Get the buffer with gtk_text_view_get_buffer(). If you want * to specify your own buffer, consider gtk_text_view_new_with_buffer(). * * Returns: a new #GtkTextView **/ GtkWidget* gtk_text_view_new (void) { return g_object_new (GTK_TYPE_TEXT_VIEW, NULL); } /** * gtk_text_view_new_with_buffer: * @buffer: a #GtkTextBuffer * * Creates a new #GtkTextView widget displaying the buffer * @buffer. One buffer can be shared among many widgets. * @buffer may be %NULL to create a default buffer, in which case * this function is equivalent to gtk_text_view_new(). The * text view adds its own reference count to the buffer; it does not * take over an existing reference. * * Returns: a new #GtkTextView. **/ GtkWidget* gtk_text_view_new_with_buffer (GtkTextBuffer *buffer) { GtkTextView *text_view; text_view = (GtkTextView*)gtk_text_view_new (); gtk_text_view_set_buffer (text_view, buffer); return GTK_WIDGET (text_view); } /** * gtk_text_view_set_buffer: * @text_view: a #GtkTextView * @buffer: (allow-none): a #GtkTextBuffer * * Sets @buffer as the buffer being displayed by @text_view. The previous * buffer displayed by the text view is unreferenced, and a reference is * added to @buffer. If you owned a reference to @buffer before passing it * to this function, you must remove that reference yourself; #GtkTextView * will not “adopt” it. **/ void gtk_text_view_set_buffer (GtkTextView *text_view, GtkTextBuffer *buffer) { GtkTextViewPrivate *priv; GtkTextBuffer *old_buffer; g_return_if_fail (GTK_IS_TEXT_VIEW (text_view)); g_return_if_fail (buffer == NULL || GTK_IS_TEXT_BUFFER (buffer)); priv = text_view->priv; if (priv->buffer == buffer) return; old_buffer = priv->buffer; if (priv->buffer != NULL) { /* Destroy all anchored children */ GSList *tmp_list; GSList *copy; copy = g_slist_copy (priv->children); tmp_list = copy; while (tmp_list != NULL) { GtkTextViewChild *vc = tmp_list->data; if (vc->anchor) { gtk_widget_destroy (vc->widget); /* vc may now be invalid! */ } tmp_list = tmp_list->next; } g_slist_free (copy); g_signal_handlers_disconnect_by_func (priv->buffer, gtk_text_view_mark_set_handler, text_view); g_signal_handlers_disconnect_by_func (priv->buffer, gtk_text_view_target_list_notify, text_view); g_signal_handlers_disconnect_by_func (priv->buffer, gtk_text_view_paste_done_handler, text_view); g_signal_handlers_disconnect_by_func (priv->buffer, gtk_text_view_buffer_changed_handler, text_view); if (gtk_widget_get_realized (GTK_WIDGET (text_view))) { GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view), GDK_SELECTION_PRIMARY); gtk_text_buffer_remove_selection_clipboard (priv->buffer, clipboard); } if (priv->layout) gtk_text_layout_set_buffer (priv->layout, NULL); priv->dnd_mark = NULL; priv->first_para_mark = NULL; cancel_pending_scroll (text_view); } priv->buffer = buffer; if (priv->layout) gtk_text_layout_set_buffer (priv->layout, buffer); if (buffer != NULL) { GtkTextIter start; g_object_ref (buffer); gtk_text_buffer_get_iter_at_offset (priv->buffer, &start, 0); priv->dnd_mark = gtk_text_buffer_create_mark (priv->buffer, "gtk_drag_target", &start, FALSE); priv->first_para_mark = gtk_text_buffer_create_mark (priv->buffer, NULL, &start, TRUE); priv->first_para_pixels = 0; g_signal_connect (priv->buffer, "mark-set", G_CALLBACK (gtk_text_view_mark_set_handler), text_view); g_signal_connect (priv->buffer, "notify::paste-target-list", G_CALLBACK (gtk_text_view_target_list_notify), text_view); g_signal_connect (priv->buffer, "paste-done", G_CALLBACK (gtk_text_view_paste_done_handler), text_view); g_signal_connect (priv->buffer, "changed", G_CALLBACK (gtk_text_view_buffer_changed_handler), text_view); gtk_text_view_target_list_notify (priv->buffer, NULL, text_view); if (gtk_widget_get_realized (GTK_WIDGET (text_view))) { GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view), GDK_SELECTION_PRIMARY); gtk_text_buffer_add_selection_clipboard (priv->buffer, clipboard); } if (priv->text_handle) gtk_text_view_update_handles (text_view, GTK_TEXT_HANDLE_MODE_NONE); } _gtk_text_view_accessible_set_buffer (text_view, old_buffer); if (old_buffer) g_object_unref (old_buffer); g_object_notify (G_OBJECT (text_view), "buffer"); if (gtk_widget_get_visible (GTK_WIDGET (text_view))) gtk_widget_queue_draw (GTK_WIDGET (text_view)); DV(g_print ("Invalidating due to set_buffer\n")); gtk_text_view_invalidate (text_view); } static GtkTextBuffer* gtk_text_view_create_buffer (GtkTextView *text_view) { return gtk_text_buffer_new (NULL); } static GtkTextBuffer* get_buffer (GtkTextView *text_view) { if (text_view->priv->buffer == NULL) { GtkTextBuffer *b; b = GTK_TEXT_VIEW_GET_CLASS (text_view)->create_buffer (text_view); gtk_text_view_set_buffer (text_view, b); g_object_unref (b); } return text_view->priv->buffer; } /** * gtk_text_view_get_buffer: * @text_view: a #GtkTextView * * Returns the #GtkTextBuffer being displayed by this text view. * The reference count on the buffer is not incremented; the caller * of this function won’t own a new reference. * * Returns: (transfer none): a #GtkTextBuffer **/ GtkTextBuffer* gtk_text_view_get_buffer (GtkTextView *text_view) { g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL); return get_buffer (text_view); } /** * gtk_text_view_get_cursor_locations: * @text_view: a #GtkTextView * @iter: (allow-none): a #GtkTextIter * @strong: (out) (allow-none): location to store the strong * cursor position (may be %NULL) * @weak: (out) (allow-none): location to store the weak * cursor position (may be %NULL) * * Given an @iter within a text layout, determine the positions of the * strong and weak cursors if the insertion point is at that * iterator. The position of each cursor is stored as a zero-width * rectangle. The strong cursor location is the location where * characters of the directionality equal to the base direction of the * paragraph are inserted. The weak cursor location is the location * where characters of the directionality opposite to the base * direction of the paragraph are inserted. * * If @iter is %NULL, the actual cursor position is used. * * Note that if @iter happens to be the actual cursor position, and * there is currently an IM preedit sequence being entered, the * returned locations will be adjusted to account for the preedit * cursor’s offset within the preedit sequence. * * The rectangle position is in buffer coordinates; use * gtk_text_view_buffer_to_window_coords() to convert these * coordinates to coordinates for one of the windows in the text view. * * Since: 3.0 **/ void gtk_text_view_get_cursor_locations (GtkTextView *text_view, const GtkTextIter *iter, GdkRectangle *strong, GdkRectangle *weak) { GtkTextIter insert; g_return_if_fail (GTK_IS_TEXT_VIEW (text_view)); g_return_if_fail (iter == NULL || gtk_text_iter_get_buffer (iter) == get_buffer (text_view)); gtk_text_view_ensure_layout (text_view); if (iter) insert = *iter; else gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert, gtk_text_buffer_get_insert (get_buffer (text_view))); gtk_text_layout_get_cursor_locations (text_view->priv->layout, &insert, strong, weak); } /** * gtk_text_view_get_iter_at_location: * @text_view: a #GtkTextView * @iter: (out): a #GtkTextIter * @x: x position, in buffer coordinates * @y: y position, in buffer coordinates * * Retrieves the iterator at buffer coordinates @x and @y. Buffer * coordinates are coordinates for the entire buffer, not just the * currently-displayed portion. If you have coordinates from an * event, you have to convert those to buffer coordinates with * gtk_text_view_window_to_buffer_coords(). * * Returns: %TRUE if the position is over text */ gboolean gtk_text_view_get_iter_at_location (GtkTextView *text_view, GtkTextIter *iter, gint x, gint y) { g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE); g_return_val_if_fail (iter != NULL, FALSE); gtk_text_view_ensure_layout (text_view); return gtk_text_layout_get_iter_at_pixel (text_view->priv->layout, iter, x, y); } /** * gtk_text_view_get_iter_at_position: * @text_view: a #GtkTextView * @iter: (out): a #GtkTextIter * @trailing: (out) (allow-none): if non-%NULL, location to store an integer indicating where * in the grapheme the user clicked. It will either be * zero, or the number of characters in the grapheme. * 0 represents the trailing edge of the grapheme. * @x: x position, in buffer coordinates * @y: y position, in buffer coordinates * * Retrieves the iterator pointing to the character at buffer * coordinates @x and @y. Buffer coordinates are coordinates for * the entire buffer, not just the currently-displayed portion. * If you have coordinates from an event, you have to convert * those to buffer coordinates with * gtk_text_view_window_to_buffer_coords(). * * Note that this is different from gtk_text_view_get_iter_at_location(), * which returns cursor locations, i.e. positions between * characters. * * Returns: %TRUE if the position is over text * * Since: 2.6 **/ gboolean gtk_text_view_get_iter_at_position (GtkTextView *text_view, GtkTextIter *iter, gint *trailing, gint x, gint y) { g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE); g_return_val_if_fail (iter != NULL, FALSE); gtk_text_view_ensure_layout (text_view); return gtk_text_layout_get_iter_at_position (text_view->priv->layout, iter, trailing, x, y); } /** * gtk_text_view_get_iter_location: * @text_view: a #GtkTextView * @iter: a #GtkTextIter * @location: (out): bounds of the character at @iter * * Gets a rectangle which roughly contains the character at @iter. * The rectangle position is in buffer coordinates; use * gtk_text_view_buffer_to_window_coords() to convert these * coordinates to coordinates for one of the windows in the text view. **/ void gtk_text_view_get_iter_location (GtkTextView *text_view, const GtkTextIter *iter, GdkRectangle *location) { g_return_if_fail (GTK_IS_TEXT_VIEW (text_view)); g_return_if_fail (gtk_text_iter_get_buffer (iter) == get_buffer (text_view)); gtk_text_view_ensure_layout (text_view); gtk_text_layout_get_iter_location (text_view->priv->layout, iter, location); } /** * gtk_text_view_get_line_yrange: * @text_view: a #GtkTextView * @iter: a #GtkTextIter * @y: (out): return location for a y coordinate * @height: (out): return location for a height * * Gets the y coordinate of the top of the line containing @iter, * and the height of the line. The coordinate is a buffer coordinate; * convert to window coordinates with gtk_text_view_buffer_to_window_coords(). **/ void gtk_text_view_get_line_yrange (GtkTextView *text_view, const GtkTextIter *iter, gint *y, gint *height) { g_return_if_fail (GTK_IS_TEXT_VIEW (text_view)); g_return_if_fail (gtk_text_iter_get_buffer (iter) == get_buffer (text_view)); gtk_text_view_ensure_layout (text_view); gtk_text_layout_get_line_yrange (text_view->priv->layout, iter, y, height); } /** * gtk_text_view_get_line_at_y: * @text_view: a #GtkTextView * @target_iter: (out): a #GtkTextIter * @y: a y coordinate * @line_top: (out): return location for top coordinate of the line * * Gets the #GtkTextIter at the start of the line containing * the coordinate @y. @y is in buffer coordinates, convert from * window coordinates with gtk_text_view_window_to_buffer_coords(). * If non-%NULL, @line_top will be filled with the coordinate of the top * edge of the line. **/ void gtk_text_view_get_line_at_y (GtkTextView *text_view, GtkTextIter *target_iter, gint y, gint *line_top) { g_return_if_fail (GTK_IS_TEXT_VIEW (text_view)); gtk_text_view_ensure_layout (text_view); gtk_text_layout_get_line_at_y (text_view->priv->layout, target_iter, y, line_top); } /* Same as gtk_text_view_scroll_to_iter but deal with * (top_margin / top_padding) and (bottom_margin / bottom_padding). * When with_border == TRUE and you scroll on the edges, * all borders are shown for the corresponding edge. * When with_border == FALSE, only left margin and right_margin * can be seen because they can be can be overwritten by tags. */ static gboolean _gtk_text_view_scroll_to_iter (GtkTextView *text_view, GtkTextIter *iter, gdouble within_margin, gboolean use_align, gdouble xalign, gdouble yalign, gboolean with_border) { GtkTextViewPrivate *priv = text_view->priv; GtkWidget *widget; GdkRectangle cursor; gint cursor_bottom; gint cursor_right; GdkRectangle screen; GdkRectangle screen_dest; gint screen_inner_left; gint screen_inner_right; gint screen_inner_top; gint screen_inner_bottom; gint border_xoffset = 0; gint border_yoffset = 0; gint within_margin_xoffset; gint within_margin_yoffset; gint buffer_bottom; gint buffer_right; gboolean retval = FALSE; /* FIXME why don't we do the validate-at-scroll-destination thing * from flush_scroll in this function? I think it wasn't done before * because changed_handler was screwed up, but I could be wrong. */ g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE); g_return_val_if_fail (iter != NULL, FALSE); g_return_val_if_fail (within_margin >= 0.0 && within_margin < 0.5, FALSE); g_return_val_if_fail (xalign >= 0.0 && xalign <= 1.0, FALSE); g_return_val_if_fail (yalign >= 0.0 && yalign <= 1.0, FALSE); widget = GTK_WIDGET (text_view); DV(g_print(G_STRLOC"\n")); gtk_text_layout_get_iter_location (priv->layout, iter, &cursor); DV (g_print (" target cursor %d,%d %d x %d\n", cursor.x, cursor.y, cursor.width, cursor.height)); /* In each direction, *_border are the addition of *_padding and *_margin * * Vadjustment value: * (-priv->top_border) [top padding][top margin] (0) [text][bottom margin][bottom padding] * * Hadjustment value: * (-priv->left_padding) [left padding] (0) [left margin][text][right margin][right padding] * * Buffer coordinates: * on x: (0) [left margin][text][right margin] * on y: (0) [text] * * left margin and right margin are part of the x buffer coordinate * because they are part of the pango layout so that they can be * overwritten by tags. * * Canvas coordinates: * (the canvas is the virtual window where the content of the buffer is drawn ) * * on x: (-priv->left_padding) [left padding] (0) [left margin][text][right margin][right padding] * on y: (-priv->top_border) [top margin][top padding] (0) [text][bottom margin][bottom padding] * * (priv->xoffset, priv->yoffset) is the origin of the view (visible part of the canvas) * in canvas coordinates. * As you can see, canvas coordinates and buffer coordinates are compatible but the canvas * can be larger than the buffer depending of the border size. */ cursor_bottom = cursor.y + cursor.height; cursor_right = cursor.x + cursor.width; /* Current position of the view in canvas coordinates */ screen.x = priv->xoffset; screen.y = priv->yoffset; screen.width = SCREEN_WIDTH (widget); screen.height = SCREEN_HEIGHT (widget); within_margin_xoffset = screen.width * within_margin; within_margin_yoffset = screen.height * within_margin; screen_inner_left = screen.x + within_margin_xoffset; screen_inner_top = screen.y + within_margin_yoffset; screen_inner_right = screen.x + screen.width - within_margin_xoffset; screen_inner_bottom = screen.y + screen.height - within_margin_yoffset; buffer_bottom = priv->height - priv->bottom_border; buffer_right = priv->width - priv->right_margin - priv->left_padding - 1; screen_dest.x = screen.x; screen_dest.y = screen.y; screen_dest.width = screen.width - within_margin_xoffset * 2; screen_dest.height = screen.height - within_margin_yoffset * 2; /* Minimum authorised size check */ if (screen_dest.width < 1) screen_dest.width = 1; if (screen_dest.height < 1) screen_dest.height = 1; /* The alignment affects the point in the target character that we * choose to align. If we're doing right/bottom alignment, we align * the right/bottom edge of the character the mark is at; if we're * doing left/top we align the left/top edge of the character; if * we're doing center alignment we align the center of the * character. * * The differents cases handle on each direction: * 1. cursor outside of the inner area define by within_margin * 2. if use_align == TRUE, alignment with xalign and yalign * 3. scrolling on the edges dependent of with_border */ /* Vertical scroll */ if (use_align) { gint cursor_y_alignment_offset; cursor_y_alignment_offset = (cursor.height * yalign) - (screen_dest.height * yalign); screen_dest.y = cursor.y + cursor_y_alignment_offset - within_margin_yoffset; } else { /* move minimum to get onscreen, showing the * top_border or bottom_border when necessary */ if (cursor.y < screen_inner_top) { if (cursor.y == 0) border_yoffset = (with_border) ? priv->top_padding : 0; screen_dest.y = cursor.y - MAX (within_margin_yoffset, border_yoffset); } else if (cursor_bottom > screen_inner_bottom) { if (cursor_bottom == buffer_bottom - priv->top_border) border_yoffset = (with_border) ? priv->bottom_padding : 0; screen_dest.y = cursor_bottom - screen_dest.height + MAX (within_margin_yoffset, border_yoffset); } } if (screen_dest.y != screen.y) { gtk_adjustment_animate_to_value (priv->vadjustment, screen_dest.y + priv->top_border); DV (g_print (" vert increment %d\n", screen_dest.y - screen.y)); } /* Horizontal scroll */ if (use_align) { gint cursor_x_alignment_offset; cursor_x_alignment_offset = (cursor.width * xalign) - (screen_dest.width * xalign); screen_dest.x = cursor.x + cursor_x_alignment_offset - within_margin_xoffset; } else { /* move minimum to get onscreen, showing the * left_border or right_border when necessary */ if (cursor.x < screen_inner_left) { if (cursor.x == priv->left_margin) border_xoffset = (with_border) ? priv->left_padding : 0; screen_dest.x = cursor.x - MAX (within_margin_xoffset, border_xoffset); } else if (cursor_right >= screen_inner_right - 1) { if (cursor.x >= buffer_right - priv->right_padding) border_xoffset = (with_border) ? priv->right_padding : 0; screen_dest.x = cursor_right - screen_dest.width + MAX (within_margin_xoffset, border_xoffset) + 1; } } if (screen_dest.x != screen.x) { gtk_adjustment_animate_to_value (priv->hadjustment, screen_dest.x + priv->left_padding); DV (g_print (" horiz increment %d\n", screen_dest.x - screen.x)); } retval = (screen.y != screen_dest.y) || (screen.x != screen_dest.x); DV(g_print (">%s ("G_STRLOC")\n", retval ? "Actually scrolled" : "Didn't end up scrolling")); return retval; } /** * gtk_text_view_scroll_to_iter: * @text_view: a #GtkTextView * @iter: a #GtkTextIter * @within_margin: margin as a [0.0,0.5) fraction of screen size * @use_align: whether to use alignment arguments (if %FALSE, * just get the mark onscreen) * @xalign: horizontal alignment of mark within visible area * @yalign: vertical alignment of mark within visible area * * Scrolls @text_view so that @iter is on the screen in the position * indicated by @xalign and @yalign. An alignment of 0.0 indicates * left or top, 1.0 indicates right or bottom, 0.5 means center. * If @use_align is %FALSE, the text scrolls the minimal distance to * get the mark onscreen, possibly not scrolling at all. The effective * screen for purposes of this function is reduced by a margin of size * @within_margin. * * Note that this function uses the currently-computed height of the * lines in the text buffer. Line heights are computed in an idle * handler; so this function may not have the desired effect if it’s * called before the height computations. To avoid oddness, consider * using gtk_text_view_scroll_to_mark() which saves a point to be * scrolled to after line validation. * * Returns: %TRUE if scrolling occurred **/ gboolean gtk_text_view_scroll_to_iter (GtkTextView *text_view, GtkTextIter *iter, gdouble within_margin, gboolean use_align, gdouble xalign, gdouble yalign) { return _gtk_text_view_scroll_to_iter (text_view, iter, within_margin, use_align, xalign, yalign, FALSE); } static void free_pending_scroll (GtkTextPendingScroll *scroll) { if (!gtk_text_mark_get_deleted (scroll->mark)) gtk_text_buffer_delete_mark (gtk_text_mark_get_buffer (scroll->mark), scroll->mark); g_object_unref (scroll->mark); g_slice_free (GtkTextPendingScroll, scroll); } static void cancel_pending_scroll (GtkTextView *text_view) { if (text_view->priv->pending_scroll) { free_pending_scroll (text_view->priv->pending_scroll); text_view->priv->pending_scroll = NULL; } } static void gtk_text_view_queue_scroll (GtkTextView *text_view, GtkTextMark *mark, gdouble within_margin, gboolean use_align, gdouble xalign, gdouble yalign) { GtkTextIter iter; GtkTextPendingScroll *scroll; DV(g_print(G_STRLOC"\n")); scroll = g_slice_new (GtkTextPendingScroll); scroll->within_margin = within_margin; scroll->use_align = use_align; scroll->xalign = xalign; scroll->yalign = yalign; gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, mark); scroll->mark = gtk_text_buffer_create_mark (get_buffer (text_view), NULL, &iter, gtk_text_mark_get_left_gravity (mark)); g_object_ref (scroll->mark); cancel_pending_scroll (text_view); text_view->priv->pending_scroll = scroll; } static gboolean gtk_text_view_flush_scroll (GtkTextView *text_view) { GtkAllocation allocation; GtkTextIter iter; GtkTextPendingScroll *scroll; gboolean retval; GtkWidget *widget; widget = GTK_WIDGET (text_view); DV(g_print(G_STRLOC"\n")); if (text_view->priv->pending_scroll == NULL) { DV (g_print ("in flush scroll, no pending scroll\n")); return FALSE; } scroll = text_view->priv->pending_scroll; /* avoid recursion */ text_view->priv->pending_scroll = NULL; gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, scroll->mark); /* Validate area around the scroll destination, so the adjustment * can meaningfully point into that area. We must validate * enough area to be sure that after we scroll, everything onscreen * is valid; otherwise, validation will maintain the first para * in one place, but may push the target iter off the bottom of * the screen. */ DV(g_print (">Validating scroll destination ("G_STRLOC")\n")); gtk_widget_get_allocation (widget, &allocation); gtk_text_layout_validate_yrange (text_view->priv->layout, &iter, -(allocation.height * 2), allocation.height * 2); DV(g_print (">Done validating scroll destination ("G_STRLOC")\n")); /* Ensure we have updated width/height */ gtk_text_view_update_adjustments (text_view); retval = _gtk_text_view_scroll_to_iter (text_view, &iter, scroll->within_margin, scroll->use_align, scroll->xalign, scroll->yalign, TRUE); if (text_view->priv->text_handle) gtk_text_view_update_handles (text_view, _gtk_text_handle_get_mode (text_view->priv->text_handle)); free_pending_scroll (scroll); return retval; } static void gtk_text_view_update_adjustments (GtkTextView *text_view) { GtkTextViewPrivate *priv; gint width = 0, height = 0; DV(g_print(">Updating adjustments ("G_STRLOC")\n")); priv = text_view->priv; if (priv->layout) gtk_text_layout_get_size (priv->layout, &width, &height); /* Make room for the cursor after the last character in the widest line */ width += SPACE_FOR_CURSOR; height += priv->top_border + priv->bottom_border; if (priv->width != width || priv->height != height) { if (priv->width != width) priv->width_changed = TRUE; priv->width = width; priv->height = height; gtk_text_view_set_hadjustment_values (text_view); gtk_text_view_set_vadjustment_values (text_view); } } static void gtk_text_view_update_layout_width (GtkTextView *text_view) { DV(g_print(">Updating layout width ("G_STRLOC")\n")); gtk_text_view_ensure_layout (text_view); gtk_text_layout_set_screen_width (text_view->priv->layout, MAX (1, SCREEN_WIDTH (text_view) - SPACE_FOR_CURSOR)); } static void gtk_text_view_update_im_spot_location (GtkTextView *text_view) { GdkRectangle area; if (text_view->priv->layout == NULL) return; gtk_text_view_get_cursor_locations (text_view, NULL, &area, NULL); area.x -= text_view->priv->xoffset; area.y -= text_view->priv->yoffset; /* Width returned by Pango indicates direction of cursor, * by its sign more than the size of cursor. */ area.width = 0; gtk_im_context_set_cursor_location (text_view->priv->im_context, &area); } static gboolean do_update_im_spot_location (gpointer text_view) { GtkTextViewPrivate *priv; priv = GTK_TEXT_VIEW (text_view)->priv; priv->im_spot_idle = 0; gtk_text_view_update_im_spot_location (text_view); return FALSE; } static void queue_update_im_spot_location (GtkTextView *text_view) { GtkTextViewPrivate *priv; priv = text_view->priv; /* Use priority a little higher than GTK_TEXT_VIEW_PRIORITY_VALIDATE, * so we don't wait until the entire buffer has been validated. */ if (!priv->im_spot_idle) { priv->im_spot_idle = gdk_threads_add_idle_full (GTK_TEXT_VIEW_PRIORITY_VALIDATE - 1, do_update_im_spot_location, text_view, NULL); g_source_set_name_by_id (priv->im_spot_idle, "[gtk+] do_update_im_spot_location"); } } static void flush_update_im_spot_location (GtkTextView *text_view) { GtkTextViewPrivate *priv; priv = text_view->priv; if (priv->im_spot_idle) { g_source_remove (priv->im_spot_idle); priv->im_spot_idle = 0; gtk_text_view_update_im_spot_location (text_view); } } /** * gtk_text_view_scroll_to_mark: * @text_view: a #GtkTextView * @mark: a #GtkTextMark * @within_margin: margin as a [0.0,0.5) fraction of screen size * @use_align: whether to use alignment arguments (if %FALSE, just * get the mark onscreen) * @xalign: horizontal alignment of mark within visible area * @yalign: vertical alignment of mark within visible area * * Scrolls @text_view so that @mark is on the screen in the position * indicated by @xalign and @yalign. An alignment of 0.0 indicates * left or top, 1.0 indicates right or bottom, 0.5 means center. * If @use_align is %FALSE, the text scrolls the minimal distance to * get the mark onscreen, possibly not scrolling at all. The effective * screen for purposes of this function is reduced by a margin of size * @within_margin. **/ void gtk_text_view_scroll_to_mark (GtkTextView *text_view, GtkTextMark *mark, gdouble within_margin, gboolean use_align, gdouble xalign, gdouble yalign) { g_return_if_fail (GTK_IS_TEXT_VIEW (text_view)); g_return_if_fail (GTK_IS_TEXT_MARK (mark)); g_return_if_fail (within_margin >= 0.0 && within_margin < 0.5); g_return_if_fail (xalign >= 0.0 && xalign <= 1.0); g_return_if_fail (yalign >= 0.0 && yalign <= 1.0); /* We need to verify that the buffer contains the mark, otherwise this * can lead to data structure corruption later on. */ g_return_if_fail (get_buffer (text_view) == gtk_text_mark_get_buffer (mark)); gtk_text_view_queue_scroll (text_view, mark, within_margin, use_align, xalign, yalign); /* If no validation is pending, we need to go ahead and force an * immediate scroll. */ if (text_view->priv->layout && gtk_text_layout_is_valid (text_view->priv->layout)) gtk_text_view_flush_scroll (text_view); } /** * gtk_text_view_scroll_mark_onscreen: * @text_view: a #GtkTextView * @mark: a mark in the buffer for @text_view * * Scrolls @text_view the minimum distance such that @mark is contained * within the visible area of the widget. **/ void gtk_text_view_scroll_mark_onscreen (GtkTextView *text_view, GtkTextMark *mark) { g_return_if_fail (GTK_IS_TEXT_VIEW (text_view)); g_return_if_fail (GTK_IS_TEXT_MARK (mark)); /* We need to verify that the buffer contains the mark, otherwise this * can lead to data structure corruption later on. */ g_return_if_fail (get_buffer (text_view) == gtk_text_mark_get_buffer (mark)); gtk_text_view_scroll_to_mark (text_view, mark, 0.0, FALSE, 0.0, 0.0); } static gboolean clamp_iter_onscreen (GtkTextView *text_view, GtkTextIter *iter) { GdkRectangle visible_rect; gtk_text_view_get_visible_rect (text_view, &visible_rect); return gtk_text_layout_clamp_iter_to_vrange (text_view->priv->layout, iter, visible_rect.y, visible_rect.y + visible_rect.height); } /** * gtk_text_view_move_mark_onscreen: * @text_view: a #GtkTextView * @mark: a #GtkTextMark * * Moves a mark within the buffer so that it's * located within the currently-visible text area. * * Returns: %TRUE if the mark moved (wasn’t already onscreen) **/ gboolean gtk_text_view_move_mark_onscreen (GtkTextView *text_view, GtkTextMark *mark) { GtkTextIter iter; g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE); g_return_val_if_fail (mark != NULL, FALSE); gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, mark); if (clamp_iter_onscreen (text_view, &iter)) { gtk_text_buffer_move_mark (get_buffer (text_view), mark, &iter); return TRUE; } else return FALSE; } /** * gtk_text_view_get_visible_rect: * @text_view: a #GtkTextView * @visible_rect: (out): rectangle to fill * * Fills @visible_rect with the currently-visible * region of the buffer, in buffer coordinates. Convert to window coordinates * with gtk_text_view_buffer_to_window_coords(). **/ void gtk_text_view_get_visible_rect (GtkTextView *text_view, GdkRectangle *visible_rect) { GtkWidget *widget; g_return_if_fail (GTK_IS_TEXT_VIEW (text_view)); widget = GTK_WIDGET (text_view); if (visible_rect) { visible_rect->x = text_view->priv->xoffset; visible_rect->y = text_view->priv->yoffset; visible_rect->width = SCREEN_WIDTH (widget); visible_rect->height = SCREEN_HEIGHT (widget); DV(g_print(" visible rect: %d,%d %d x %d\n", visible_rect->x, visible_rect->y, visible_rect->width, visible_rect->height)); } } /** * gtk_text_view_set_wrap_mode: * @text_view: a #GtkTextView * @wrap_mode: a #GtkWrapMode * * Sets the line wrapping for the view. **/ void gtk_text_view_set_wrap_mode (GtkTextView *text_view, GtkWrapMode wrap_mode) { GtkTextViewPrivate *priv; g_return_if_fail (GTK_IS_TEXT_VIEW (text_view)); priv = text_view->priv; if (priv->wrap_mode != wrap_mode) { priv->wrap_mode = wrap_mode; if (priv->layout && priv->layout->default_style) { priv->layout->default_style->wrap_mode = wrap_mode; gtk_text_layout_default_style_changed (priv->layout); } g_object_notify (G_OBJECT (text_view), "wrap-mode"); } } /** * gtk_text_view_get_wrap_mode: * @text_view: a #GtkTextView * * Gets the line wrapping for the view. * * Returns: the line wrap setting **/ GtkWrapMode gtk_text_view_get_wrap_mode (GtkTextView *text_view) { g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), GTK_WRAP_NONE); return text_view->priv->wrap_mode; } /** * gtk_text_view_set_editable: * @text_view: a #GtkTextView * @setting: whether it’s editable * * Sets the default editability of the #GtkTextView. You can override * this default setting with tags in the buffer, using the “editable” * attribute of tags. **/ void gtk_text_view_set_editable (GtkTextView *text_view, gboolean setting) { GtkTextViewPrivate *priv; g_return_if_fail (GTK_IS_TEXT_VIEW (text_view)); priv = text_view->priv; setting = setting != FALSE; if (priv->editable != setting) { if (!setting) { gtk_text_view_reset_im_context(text_view); if (gtk_widget_has_focus (GTK_WIDGET (text_view))) gtk_im_context_focus_out (priv->im_context); } priv->editable = setting; if (setting && gtk_widget_has_focus (GTK_WIDGET (text_view))) gtk_im_context_focus_in (priv->im_context); if (priv->layout && priv->layout->default_style) { gtk_text_layout_set_overwrite_mode (priv->layout, priv->overwrite_mode && priv->editable); priv->layout->default_style->editable = priv->editable; gtk_text_layout_default_style_changed (priv->layout); } g_object_notify (G_OBJECT (text_view), "editable"); } } /** * gtk_text_view_get_editable: * @text_view: a #GtkTextView * * Returns the default editability of the #GtkTextView. Tags in the * buffer may override this setting for some ranges of text. * * Returns: whether text is editable by default **/ gboolean gtk_text_view_get_editable (GtkTextView *text_view) { g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE); return text_view->priv->editable; } /** * gtk_text_view_set_pixels_above_lines: * @text_view: a #GtkTextView * @pixels_above_lines: pixels above paragraphs * * Sets the default number of blank pixels above paragraphs in @text_view. * Tags in the buffer for @text_view may override the defaults. **/ void gtk_text_view_set_pixels_above_lines (GtkTextView *text_view, gint pixels_above_lines) { GtkTextViewPrivate *priv; g_return_if_fail (GTK_IS_TEXT_VIEW (text_view)); priv = text_view->priv; if (priv->pixels_above_lines != pixels_above_lines) { priv->pixels_above_lines = pixels_above_lines; if (priv->layout && priv->layout->default_style) { priv->layout->default_style->pixels_above_lines = pixels_above_lines; gtk_text_layout_default_style_changed (priv->layout); } g_object_notify (G_OBJECT (text_view), "pixels-above-lines"); } } /** * gtk_text_view_get_pixels_above_lines: * @text_view: a #GtkTextView * * Gets the default number of pixels to put above paragraphs. * Adding this function with gtk_text_view_get_pixels_below_lines() * is equal to the line space between each paragraph. * * Returns: default number of pixels above paragraphs **/ gint gtk_text_view_get_pixels_above_lines (GtkTextView *text_view) { g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0); return text_view->priv->pixels_above_lines; } /** * gtk_text_view_set_pixels_below_lines: * @text_view: a #GtkTextView * @pixels_below_lines: pixels below paragraphs * * Sets the default number of pixels of blank space * to put below paragraphs in @text_view. May be overridden * by tags applied to @text_view’s buffer. **/ void gtk_text_view_set_pixels_below_lines (GtkTextView *text_view, gint pixels_below_lines) { GtkTextViewPrivate *priv; g_return_if_fail (GTK_IS_TEXT_VIEW (text_view)); priv = text_view->priv; if (priv->pixels_below_lines != pixels_below_lines) { priv->pixels_below_lines = pixels_below_lines; if (priv->layout && priv->layout->default_style) { priv->layout->default_style->pixels_below_lines = pixels_below_lines; gtk_text_layout_default_style_changed (priv->layout); } g_object_notify (G_OBJECT (text_view), "pixels-below-lines"); } } /** * gtk_text_view_get_pixels_below_lines: * @text_view: a #GtkTextView * * Gets the value set by gtk_text_view_set_pixels_below_lines(). * * The line space is the sum of the value returned by this function and the * value returned by gtk_text_view_get_pixels_above_lines(). * * Returns: default number of blank pixels below paragraphs **/ gint gtk_text_view_get_pixels_below_lines (GtkTextView *text_view) { g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0); return text_view->priv->pixels_below_lines; } /** * gtk_text_view_set_pixels_inside_wrap: * @text_view: a #GtkTextView * @pixels_inside_wrap: default number of pixels between wrapped lines * * Sets the default number of pixels of blank space to leave between * display/wrapped lines within a paragraph. May be overridden by * tags in @text_view’s buffer. **/ void gtk_text_view_set_pixels_inside_wrap (GtkTextView *text_view, gint pixels_inside_wrap) { GtkTextViewPrivate *priv; g_return_if_fail (GTK_IS_TEXT_VIEW (text_view)); priv = text_view->priv; if (priv->pixels_inside_wrap != pixels_inside_wrap) { priv->pixels_inside_wrap = pixels_inside_wrap; if (priv->layout && priv->layout->default_style) { priv->layout->default_style->pixels_inside_wrap = pixels_inside_wrap; gtk_text_layout_default_style_changed (priv->layout); } g_object_notify (G_OBJECT (text_view), "pixels-inside-wrap"); } } /** * gtk_text_view_get_pixels_inside_wrap: * @text_view: a #GtkTextView * * Gets the value set by gtk_text_view_set_pixels_inside_wrap(). * * Returns: default number of pixels of blank space between wrapped lines **/ gint gtk_text_view_get_pixels_inside_wrap (GtkTextView *text_view) { g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0); return text_view->priv->pixels_inside_wrap; } /** * gtk_text_view_set_justification: * @text_view: a #GtkTextView * @justification: justification * * Sets the default justification of text in @text_view. * Tags in the view’s buffer may override the default. * **/ void gtk_text_view_set_justification (GtkTextView *text_view, GtkJustification justification) { GtkTextViewPrivate *priv; g_return_if_fail (GTK_IS_TEXT_VIEW (text_view)); priv = text_view->priv; if (priv->justify != justification) { priv->justify = justification; if (priv->layout && priv->layout->default_style) { priv->layout->default_style->justification = justification; gtk_text_layout_default_style_changed (priv->layout); } g_object_notify (G_OBJECT (text_view), "justification"); } } /** * gtk_text_view_get_justification: * @text_view: a #GtkTextView * * Gets the default justification of paragraphs in @text_view. * Tags in the buffer may override the default. * * Returns: default justification **/ GtkJustification gtk_text_view_get_justification (GtkTextView *text_view) { g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), GTK_JUSTIFY_LEFT); return text_view->priv->justify; } /** * gtk_text_view_set_left_margin: * @text_view: a #GtkTextView * @left_margin: left margin in pixels * * Sets the default left margin for text in @text_view. * Tags in the buffer may override the default. * * Note that this function is confusingly named. * In CSS terms, the value set here is padding. */ void gtk_text_view_set_left_margin (GtkTextView *text_view, gint left_margin) { GtkTextViewPrivate *priv = text_view->priv; g_return_if_fail (GTK_IS_TEXT_VIEW (text_view)); if (priv->left_margin != left_margin) { priv->left_margin = left_margin; priv->left_border = left_margin + priv->left_padding; if (priv->layout && priv->layout->default_style) { priv->layout->default_style->left_margin = left_margin; gtk_text_layout_default_style_changed (priv->layout); } g_object_notify (G_OBJECT (text_view), "left-margin"); } } /** * gtk_text_view_get_left_margin: * @text_view: a #GtkTextView * * Gets the default left margin size of paragraphs in the @text_view. * Tags in the buffer may override the default. * * Returns: left margin in pixels */ gint gtk_text_view_get_left_margin (GtkTextView *text_view) { g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0); return text_view->priv->left_margin; } /** * gtk_text_view_set_right_margin: * @text_view: a #GtkTextView * @right_margin: right margin in pixels * * Sets the default right margin for text in the text view. * Tags in the buffer may override the default. * * Note that this function is confusingly named. * In CSS terms, the value set here is padding. */ void gtk_text_view_set_right_margin (GtkTextView *text_view, gint right_margin) { GtkTextViewPrivate *priv = text_view->priv; g_return_if_fail (GTK_IS_TEXT_VIEW (text_view)); if (priv->right_margin != right_margin) { priv->right_margin = right_margin; priv->right_border = right_margin + priv->right_padding; if (priv->layout && priv->layout->default_style) { priv->layout->default_style->right_margin = right_margin; gtk_text_layout_default_style_changed (priv->layout); } g_object_notify (G_OBJECT (text_view), "right-margin"); } } /** * gtk_text_view_get_right_margin: * @text_view: a #GtkTextView * * Gets the default right margin for text in @text_view. Tags * in the buffer may override the default. * * Returns: right margin in pixels */ gint gtk_text_view_get_right_margin (GtkTextView *text_view) { g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0); return text_view->priv->right_margin; } /** * gtk_text_view_set_top_margin: * @text_view: a #GtkTextView * @top_margin: top margin in pixels * * Sets the top margin for text in @text_view. * * Note that this function is confusingly named. * In CSS terms, the value set here is padding. * * Since: 3.18 */ void gtk_text_view_set_top_margin (GtkTextView *text_view, gint top_margin) { GtkTextViewPrivate *priv = text_view->priv; g_return_if_fail (GTK_IS_TEXT_VIEW (text_view)); if (priv->top_margin != top_margin) { priv->yoffset += priv->top_margin - top_margin; priv->top_margin = top_margin; priv->top_border = top_margin + priv->top_padding; if (priv->layout && priv->layout->default_style) gtk_text_layout_default_style_changed (priv->layout); gtk_text_view_invalidate (text_view); g_object_notify (G_OBJECT (text_view), "top-margin"); } } /** * gtk_text_view_get_top_margin: * @text_view: a #GtkTextView * * Gets the top margin for text in the @text_view. * * Returns: top margin in pixels * * Since: 3.18 **/ gint gtk_text_view_get_top_margin (GtkTextView *text_view) { g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0); return text_view->priv->top_margin; } /** * gtk_text_view_set_bottom_margin: * @text_view: a #GtkTextView * @bottom_margin: bottom margin in pixels * * Sets the bottom margin for text in @text_view. * * Note that this function is confusingly named. * In CSS terms, the value set here is padding. * * Since: 3.18 */ void gtk_text_view_set_bottom_margin (GtkTextView *text_view, gint bottom_margin) { GtkTextViewPrivate *priv = text_view->priv; g_return_if_fail (GTK_IS_TEXT_VIEW (text_view)); if (priv->bottom_margin != bottom_margin) { priv->bottom_margin = bottom_margin; priv->bottom_border = bottom_margin + priv->bottom_padding; if (priv->layout && priv->layout->default_style) gtk_text_layout_default_style_changed (priv->layout); g_object_notify (G_OBJECT (text_view), "bottom-margin"); } } /** * gtk_text_view_get_bottom_margin: * @text_view: a #GtkTextView * * Gets the bottom margin for text in the @text_view. * * Returns: bottom margin in pixels * * Since: 3.18 */ gint gtk_text_view_get_bottom_margin (GtkTextView *text_view) { g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0); return text_view->priv->bottom_margin; } /** * gtk_text_view_set_indent: * @text_view: a #GtkTextView * @indent: indentation in pixels * * Sets the default indentation for paragraphs in @text_view. * Tags in the buffer may override the default. **/ void gtk_text_view_set_indent (GtkTextView *text_view, gint indent) { GtkTextViewPrivate *priv; g_return_if_fail (GTK_IS_TEXT_VIEW (text_view)); priv = text_view->priv; if (priv->indent != indent) { priv->indent = indent; if (priv->layout && priv->layout->default_style) { priv->layout->default_style->indent = indent; gtk_text_layout_default_style_changed (priv->layout); } g_object_notify (G_OBJECT (text_view), "indent"); } } /** * gtk_text_view_get_indent: * @text_view: a #GtkTextView * * Gets the default indentation of paragraphs in @text_view. * Tags in the view’s buffer may override the default. * The indentation may be negative. * * Returns: number of pixels of indentation **/ gint gtk_text_view_get_indent (GtkTextView *text_view) { g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0); return text_view->priv->indent; } /** * gtk_text_view_set_tabs: * @text_view: a #GtkTextView * @tabs: tabs as a #PangoTabArray * * Sets the default tab stops for paragraphs in @text_view. * Tags in the buffer may override the default. **/ void gtk_text_view_set_tabs (GtkTextView *text_view, PangoTabArray *tabs) { GtkTextViewPrivate *priv; g_return_if_fail (GTK_IS_TEXT_VIEW (text_view)); priv = text_view->priv; if (priv->tabs) pango_tab_array_free (priv->tabs); priv->tabs = tabs ? pango_tab_array_copy (tabs) : NULL; if (priv->layout && priv->layout->default_style) { /* some unkosher futzing in internal struct details... */ if (priv->layout->default_style->tabs) pango_tab_array_free (priv->layout->default_style->tabs); priv->layout->default_style->tabs = priv->tabs ? pango_tab_array_copy (priv->tabs) : NULL; gtk_text_layout_default_style_changed (priv->layout); } g_object_notify (G_OBJECT (text_view), "tabs"); } /** * gtk_text_view_get_tabs: * @text_view: a #GtkTextView * * Gets the default tabs for @text_view. Tags in the buffer may * override the defaults. The returned array will be %NULL if * “standard” (8-space) tabs are used. Free the return value * with pango_tab_array_free(). * * Returns: (nullable) (transfer full): copy of default tab array, or %NULL if * “standard" tabs are used; must be freed with pango_tab_array_free(). **/ PangoTabArray* gtk_text_view_get_tabs (GtkTextView *text_view) { g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL); return text_view->priv->tabs ? pango_tab_array_copy (text_view->priv->tabs) : NULL; } static void gtk_text_view_toggle_cursor_visible (GtkTextView *text_view) { gtk_text_view_set_cursor_visible (text_view, !text_view->priv->cursor_visible); } /** * gtk_text_view_set_cursor_visible: * @text_view: a #GtkTextView * @setting: whether to show the insertion cursor * * Toggles whether the insertion point should be displayed. A buffer with * no editable text probably shouldn’t have a visible cursor, so you may * want to turn the cursor off. * * Note that this property may be overridden by the * #GtkSettings:gtk-keynave-use-caret settings. */ void gtk_text_view_set_cursor_visible (GtkTextView *text_view, gboolean setting) { GtkTextViewPrivate *priv; g_return_if_fail (GTK_IS_TEXT_VIEW (text_view)); priv = text_view->priv; setting = (setting != FALSE); if (priv->cursor_visible != setting) { priv->cursor_visible = setting; if (gtk_widget_has_focus (GTK_WIDGET (text_view))) { if (priv->layout) { gtk_text_layout_set_cursor_visible (priv->layout, setting); gtk_text_view_check_cursor_blink (text_view); } } g_object_notify (G_OBJECT (text_view), "cursor-visible"); } } /** * gtk_text_view_get_cursor_visible: * @text_view: a #GtkTextView * * Find out whether the cursor should be displayed. * * Returns: whether the insertion mark is visible */ gboolean gtk_text_view_get_cursor_visible (GtkTextView *text_view) { g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE); return text_view->priv->cursor_visible; } /** * gtk_text_view_reset_cursor_blink: * @text_view: a #GtkTextView * * Ensures that the cursor is shown (i.e. not in an 'off' blink * interval) and resets the time that it will stay blinking (or * visible, in case blinking is disabled). * * This function should be called in response to user input * (e.g. from derived classes that override the textview's * #GtkWidget::key-press-event handler). * * Since: 3.20 */ void gtk_text_view_reset_cursor_blink (GtkTextView *text_view) { g_return_if_fail (GTK_IS_TEXT_VIEW (text_view)); gtk_text_view_reset_blink_time (text_view); gtk_text_view_pend_cursor_blink (text_view); } /** * gtk_text_view_place_cursor_onscreen: * @text_view: a #GtkTextView * * Moves the cursor to the currently visible region of the * buffer, it it isn’t there already. * * Returns: %TRUE if the cursor had to be moved. **/ gboolean gtk_text_view_place_cursor_onscreen (GtkTextView *text_view) { GtkTextIter insert; g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE); gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert, gtk_text_buffer_get_insert (get_buffer (text_view))); if (clamp_iter_onscreen (text_view, &insert)) { gtk_text_buffer_place_cursor (get_buffer (text_view), &insert); return TRUE; } else return FALSE; } static void gtk_text_view_remove_validate_idles (GtkTextView *text_view) { GtkTextViewPrivate *priv = text_view->priv; if (priv->first_validate_idle != 0) { DV (g_print ("Removing first validate idle: %s\n", G_STRLOC)); g_source_remove (priv->first_validate_idle); priv->first_validate_idle = 0; } if (priv->incremental_validate_idle != 0) { g_source_remove (priv->incremental_validate_idle); priv->incremental_validate_idle = 0; } } static void gtk_text_view_destroy (GtkWidget *widget) { GtkTextView *text_view; GtkTextViewPrivate *priv; text_view = GTK_TEXT_VIEW (widget); priv = text_view->priv; gtk_text_view_remove_validate_idles (text_view); gtk_text_view_set_buffer (text_view, NULL); gtk_text_view_destroy_layout (text_view); if (text_view->priv->scroll_timeout) { g_source_remove (text_view->priv->scroll_timeout); text_view->priv->scroll_timeout = 0; } if (priv->im_spot_idle) { g_source_remove (priv->im_spot_idle); priv->im_spot_idle = 0; } if (priv->pixel_cache) { _gtk_pixel_cache_free (priv->pixel_cache); priv->pixel_cache = NULL; } if (priv->magnifier) _gtk_magnifier_set_inspected (GTK_MAGNIFIER (priv->magnifier), NULL); GTK_WIDGET_CLASS (gtk_text_view_parent_class)->destroy (widget); } static void gtk_text_view_finalize (GObject *object) { GtkTextView *text_view; GtkTextViewPrivate *priv; text_view = GTK_TEXT_VIEW (object); priv = text_view->priv; gtk_text_view_destroy_layout (text_view); gtk_text_view_set_buffer (text_view, NULL); /* at this point, no "notify::buffer" handler should recreate the buffer. */ g_assert (priv->buffer == NULL); cancel_pending_scroll (text_view); g_object_unref (priv->multipress_gesture); g_object_unref (priv->drag_gesture); if (priv->tabs) pango_tab_array_free (priv->tabs); if (priv->hadjustment) g_object_unref (priv->hadjustment); if (priv->vadjustment) g_object_unref (priv->vadjustment); text_window_free (priv->text_window); if (priv->left_window) text_window_free (priv->left_window); if (priv->top_window) text_window_free (priv->top_window); if (priv->right_window) text_window_free (priv->right_window); if (priv->bottom_window) text_window_free (priv->bottom_window); if (priv->selection_bubble) gtk_widget_destroy (priv->selection_bubble); if (priv->magnifier_popover) gtk_widget_destroy (priv->magnifier_popover); if (priv->text_handle) g_object_unref (priv->text_handle); g_object_unref (priv->im_context); g_free (priv->im_module); G_OBJECT_CLASS (gtk_text_view_parent_class)->finalize (object); } static void gtk_text_view_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) { GtkTextView *text_view; GtkTextViewPrivate *priv; text_view = GTK_TEXT_VIEW (object); priv = text_view->priv; switch (prop_id) { case PROP_PIXELS_ABOVE_LINES: gtk_text_view_set_pixels_above_lines (text_view, g_value_get_int (value)); break; case PROP_PIXELS_BELOW_LINES: gtk_text_view_set_pixels_below_lines (text_view, g_value_get_int (value)); break; case PROP_PIXELS_INSIDE_WRAP: gtk_text_view_set_pixels_inside_wrap (text_view, g_value_get_int (value)); break; case PROP_EDITABLE: gtk_text_view_set_editable (text_view, g_value_get_boolean (value)); break; case PROP_WRAP_MODE: gtk_text_view_set_wrap_mode (text_view, g_value_get_enum (value)); break; case PROP_JUSTIFICATION: gtk_text_view_set_justification (text_view, g_value_get_enum (value)); break; case PROP_LEFT_MARGIN: gtk_text_view_set_left_margin (text_view, g_value_get_int (value)); break; case PROP_RIGHT_MARGIN: gtk_text_view_set_right_margin (text_view, g_value_get_int (value)); break; case PROP_TOP_MARGIN: gtk_text_view_set_top_margin (text_view, g_value_get_int (value)); break; case PROP_BOTTOM_MARGIN: gtk_text_view_set_bottom_margin (text_view, g_value_get_int (value)); break; case PROP_INDENT: gtk_text_view_set_indent (text_view, g_value_get_int (value)); break; case PROP_TABS: gtk_text_view_set_tabs (text_view, g_value_get_boxed (value)); break; case PROP_CURSOR_VISIBLE: gtk_text_view_set_cursor_visible (text_view, g_value_get_boolean (value)); break; case PROP_OVERWRITE: gtk_text_view_set_overwrite (text_view, g_value_get_boolean (value)); break; case PROP_BUFFER: gtk_text_view_set_buffer (text_view, GTK_TEXT_BUFFER (g_value_get_object (value))); break; case PROP_ACCEPTS_TAB: gtk_text_view_set_accepts_tab (text_view, g_value_get_boolean (value)); break; case PROP_IM_MODULE: g_free (priv->im_module); priv->im_module = g_value_dup_string (value); if (GTK_IS_IM_MULTICONTEXT (priv->im_context)) gtk_im_multicontext_set_context_id (GTK_IM_MULTICONTEXT (priv->im_context), priv->im_module); break; case PROP_HADJUSTMENT: gtk_text_view_set_hadjustment (text_view, g_value_get_object (value)); break; case PROP_VADJUSTMENT: gtk_text_view_set_vadjustment (text_view, g_value_get_object (value)); break; case PROP_HSCROLL_POLICY: if (priv->hscroll_policy != g_value_get_enum (value)) { priv->hscroll_policy = g_value_get_enum (value); gtk_widget_queue_resize (GTK_WIDGET (text_view)); g_object_notify_by_pspec (object, pspec); } break; case PROP_VSCROLL_POLICY: if (priv->vscroll_policy != g_value_get_enum (value)) { priv->vscroll_policy = g_value_get_enum (value); gtk_widget_queue_resize (GTK_WIDGET (text_view)); g_object_notify_by_pspec (object, pspec); } break; case PROP_INPUT_PURPOSE: gtk_text_view_set_input_purpose (text_view, g_value_get_enum (value)); break; case PROP_INPUT_HINTS: gtk_text_view_set_input_hints (text_view, g_value_get_flags (value)); break; case PROP_POPULATE_ALL: if (text_view->priv->populate_all != g_value_get_boolean (value)) { text_view->priv->populate_all = g_value_get_boolean (value); g_object_notify_by_pspec (object, pspec); } break; case PROP_MONOSPACE: gtk_text_view_set_monospace (text_view, g_value_get_boolean (value)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gtk_text_view_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) { GtkTextView *text_view; GtkTextViewPrivate *priv; text_view = GTK_TEXT_VIEW (object); priv = text_view->priv; switch (prop_id) { case PROP_PIXELS_ABOVE_LINES: g_value_set_int (value, priv->pixels_above_lines); break; case PROP_PIXELS_BELOW_LINES: g_value_set_int (value, priv->pixels_below_lines); break; case PROP_PIXELS_INSIDE_WRAP: g_value_set_int (value, priv->pixels_inside_wrap); break; case PROP_EDITABLE: g_value_set_boolean (value, priv->editable); break; case PROP_WRAP_MODE: g_value_set_enum (value, priv->wrap_mode); break; case PROP_JUSTIFICATION: g_value_set_enum (value, priv->justify); break; case PROP_LEFT_MARGIN: g_value_set_int (value, priv->left_margin); break; case PROP_RIGHT_MARGIN: g_value_set_int (value, priv->right_margin); break; case PROP_TOP_MARGIN: g_value_set_int (value, priv->top_margin); break; case PROP_BOTTOM_MARGIN: g_value_set_int (value, priv->bottom_margin); break; case PROP_INDENT: g_value_set_int (value, priv->indent); break; case PROP_TABS: g_value_set_boxed (value, priv->tabs); break; case PROP_CURSOR_VISIBLE: g_value_set_boolean (value, priv->cursor_visible); break; case PROP_BUFFER: g_value_set_object (value, get_buffer (text_view)); break; case PROP_OVERWRITE: g_value_set_boolean (value, priv->overwrite_mode); break; case PROP_ACCEPTS_TAB: g_value_set_boolean (value, priv->accepts_tab); break; case PROP_IM_MODULE: g_value_set_string (value, priv->im_module); break; case PROP_HADJUSTMENT: g_value_set_object (value, priv->hadjustment); break; case PROP_VADJUSTMENT: g_value_set_object (value, priv->vadjustment); break; case PROP_HSCROLL_POLICY: g_value_set_enum (value, priv->hscroll_policy); break; case PROP_VSCROLL_POLICY: g_value_set_enum (value, priv->vscroll_policy); break; case PROP_INPUT_PURPOSE: g_value_set_enum (value, gtk_text_view_get_input_purpose (text_view)); break; case PROP_INPUT_HINTS: g_value_set_flags (value, gtk_text_view_get_input_hints (text_view)); break; case PROP_POPULATE_ALL: g_value_set_boolean (value, priv->populate_all); break; case PROP_MONOSPACE: g_value_set_boolean (value, gtk_text_view_get_monospace (text_view)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gtk_text_view_size_request (GtkWidget *widget, GtkRequisition *requisition) { GtkTextView *text_view; GtkTextViewPrivate *priv; GSList *tmp_list; guint border_width; text_view = GTK_TEXT_VIEW (widget); priv = text_view->priv; if (priv->layout) { priv->text_window->requisition.width = priv->layout->width; priv->text_window->requisition.height = priv->layout->height; } else { priv->text_window->requisition.width = 0; priv->text_window->requisition.height = 0; } requisition->width = priv->text_window->requisition.width; requisition->height = priv->text_window->requisition.height; if (priv->left_window) requisition->width += priv->left_window->requisition.width; if (priv->right_window) requisition->width += priv->right_window->requisition.width; if (priv->top_window) requisition->height += priv->top_window->requisition.height; if (priv->bottom_window) requisition->height += priv->bottom_window->requisition.height; border_width = gtk_container_get_border_width (GTK_CONTAINER (text_view)); requisition->width += border_width * 2; requisition->height += border_width * 2; requisition->height += priv->top_border + priv->bottom_border; requisition->width += priv->left_border + priv->right_border; tmp_list = priv->children; while (tmp_list != NULL) { GtkTextViewChild *child = tmp_list->data; if (child->anchor) { GtkRequisition child_req; GtkRequisition old_req; gtk_widget_get_preferred_size (child->widget, &old_req, NULL); gtk_widget_get_preferred_size (child->widget, &child_req, NULL); /* Invalidate layout lines if required */ if (priv->layout && (old_req.width != child_req.width || old_req.height != child_req.height)) gtk_text_child_anchor_queue_resize (child->anchor, priv->layout); } else { GtkRequisition child_req; gtk_widget_get_preferred_size (child->widget, &child_req, NULL); } tmp_list = tmp_list->next; } /* Cache the requested size of the text view so we can * compare it in the changed_handler() */ priv->cached_size_request = *requisition; } static void gtk_text_view_get_preferred_width (GtkWidget *widget, gint *minimum, gint *natural) { GtkRequisition requisition; gtk_text_view_size_request (widget, &requisition); *minimum = *natural = requisition.width; } static void gtk_text_view_get_preferred_height (GtkWidget *widget, gint *minimum, gint *natural) { GtkRequisition requisition; gtk_text_view_size_request (widget, &requisition); *minimum = *natural = requisition.height; } static void gtk_text_view_compute_child_allocation (GtkTextView *text_view, GtkTextViewChild *vc, GtkAllocation *allocation) { gint buffer_y; GtkTextIter iter; GtkRequisition req; gtk_text_buffer_get_iter_at_child_anchor (get_buffer (text_view), &iter, vc->anchor); gtk_text_layout_get_line_yrange (text_view->priv->layout, &iter, &buffer_y, NULL); buffer_y += vc->from_top_of_line; allocation->x = vc->from_left_of_buffer - text_view->priv->xoffset; allocation->y = buffer_y - text_view->priv->yoffset; gtk_widget_get_preferred_size (vc->widget, &req, NULL); allocation->width = req.width; allocation->height = req.height; } static void gtk_text_view_update_child_allocation (GtkTextView *text_view, GtkTextViewChild *vc) { GtkAllocation allocation; gtk_text_view_compute_child_allocation (text_view, vc, &allocation); gtk_widget_size_allocate (vc->widget, &allocation); #if 0 g_print ("allocation for %p allocated to %d,%d yoffset = %d\n", vc->widget, vc->widget->allocation.x, vc->widget->allocation.y, text_view->priv->yoffset); #endif } static void gtk_text_view_child_allocated (GtkTextLayout *layout, GtkWidget *child, gint x, gint y, gpointer data) { GtkTextViewChild *vc = NULL; GtkTextView *text_view = data; /* x,y is the position of the child from the top of the line, and * from the left of the buffer. We have to translate that into text * window coordinates, then size_allocate the child. */ vc = g_object_get_qdata (G_OBJECT (child), quark_text_view_child); g_assert (vc != NULL); DV (g_print ("child allocated at %d,%d\n", x, y)); vc->from_left_of_buffer = x; vc->from_top_of_line = y; gtk_text_view_update_child_allocation (text_view, vc); } static void gtk_text_view_allocate_children (GtkTextView *text_view) { GSList *tmp_list; DV(g_print(G_STRLOC"\n")); tmp_list = text_view->priv->children; while (tmp_list != NULL) { GtkTextViewChild *child = tmp_list->data; g_assert (child != NULL); if (child->anchor) { /* We need to force-validate the regions containing * children. */ GtkTextIter child_loc; gtk_text_buffer_get_iter_at_child_anchor (get_buffer (text_view), &child_loc, child->anchor); /* Since anchored children are only ever allocated from * gtk_text_layout_get_line_display() we have to make sure * that the display line caching in the layout doesn't * get in the way. Invalidating the layout around the anchor * achieves this. */ if (_gtk_widget_get_alloc_needed (child->widget)) { GtkTextIter end = child_loc; gtk_text_iter_forward_char (&end); gtk_text_layout_invalidate (text_view->priv->layout, &child_loc, &end); } gtk_text_layout_validate_yrange (text_view->priv->layout, &child_loc, 0, 1); } else { GtkAllocation allocation; GtkRequisition child_req; allocation.x = child->x; allocation.y = child->y; if (child->type == GTK_TEXT_WINDOW_TEXT || child->type == GTK_TEXT_WINDOW_LEFT || child->type == GTK_TEXT_WINDOW_RIGHT) allocation.y -= text_view->priv->yoffset; if (child->type == GTK_TEXT_WINDOW_TEXT || child->type == GTK_TEXT_WINDOW_TOP || child->type == GTK_TEXT_WINDOW_BOTTOM) allocation.x -= text_view->priv->xoffset; gtk_widget_get_preferred_size (child->widget, &child_req, NULL); allocation.width = child_req.width; allocation.height = child_req.height; gtk_widget_size_allocate (child->widget, &allocation); } tmp_list = tmp_list->next; } } static void gtk_text_view_size_allocate (GtkWidget *widget, GtkAllocation *allocation) { GtkAllocation widget_allocation; GtkTextView *text_view; GtkTextViewPrivate *priv; gint width, height; GdkRectangle text_rect; GdkRectangle left_rect; GdkRectangle right_rect; GdkRectangle top_rect; GdkRectangle bottom_rect; guint border_width; gboolean size_changed; text_view = GTK_TEXT_VIEW (widget); priv = text_view->priv; DV(g_print(G_STRLOC"\n")); _gtk_pixel_cache_set_extra_size (priv->pixel_cache, 64, allocation->height / 2 + priv->top_border); gtk_widget_get_allocation (widget, &widget_allocation); size_changed = widget_allocation.width != allocation->width || widget_allocation.height != allocation->height; border_width = gtk_container_get_border_width (GTK_CONTAINER (text_view)); gtk_widget_set_allocation (widget, allocation); if (gtk_widget_get_realized (widget)) { gdk_window_move_resize (gtk_widget_get_window (widget), allocation->x, allocation->y, allocation->width, allocation->height); } /* distribute width/height among child windows. Ensure all * windows get at least a 1x1 allocation. */ width = allocation->width - border_width * 2; if (priv->left_window) left_rect.width = priv->left_window->requisition.width; else left_rect.width = 0; width -= left_rect.width; if (priv->right_window) right_rect.width = priv->right_window->requisition.width; else right_rect.width = 0; width -= right_rect.width; text_rect.width = MAX (1, width); top_rect.width = text_rect.width; bottom_rect.width = text_rect.width; height = allocation->height - border_width * 2; if (priv->top_window) top_rect.height = priv->top_window->requisition.height; else top_rect.height = 0; height -= top_rect.height; if (priv->bottom_window) bottom_rect.height = priv->bottom_window->requisition.height; else bottom_rect.height = 0; height -= bottom_rect.height; text_rect.height = MAX (1, height); left_rect.height = text_rect.height; right_rect.height = text_rect.height; /* Origins */ left_rect.x = border_width; top_rect.y = border_width; text_rect.x = left_rect.x + left_rect.width; text_rect.y = top_rect.y + top_rect.height; left_rect.y = text_rect.y; right_rect.y = text_rect.y; top_rect.x = text_rect.x; bottom_rect.x = text_rect.x; right_rect.x = text_rect.x + text_rect.width; bottom_rect.y = text_rect.y + text_rect.height; text_window_size_allocate (priv->text_window, &text_rect); if (priv->left_window) text_window_size_allocate (priv->left_window, &left_rect); if (priv->right_window) text_window_size_allocate (priv->right_window, &right_rect); if (priv->top_window) text_window_size_allocate (priv->top_window, &top_rect); if (priv->bottom_window) text_window_size_allocate (priv->bottom_window, &bottom_rect); gtk_text_view_update_layout_width (text_view); /* Note that this will do some layout validation */ gtk_text_view_allocate_children (text_view); /* Update adjustments */ if (!gtk_adjustment_is_animating (priv->hadjustment)) gtk_text_view_set_hadjustment_values (text_view); if (!gtk_adjustment_is_animating (priv->vadjustment)) gtk_text_view_set_vadjustment_values (text_view); /* The GTK resize loop processes all the pending exposes right * after doing the resize stuff, so the idle sizer won't have a * chance to run. So we do the work here. */ gtk_text_view_flush_first_validate (text_view); /* widget->window doesn't get auto-redrawn as the layout is computed, so has to * be invalidated */ if (size_changed && gtk_widget_get_realized (widget)) gdk_window_invalidate_rect (gtk_widget_get_window (widget), NULL, FALSE); } static void gtk_text_view_get_first_para_iter (GtkTextView *text_view, GtkTextIter *iter) { gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), iter, text_view->priv->first_para_mark); } static void gtk_text_view_validate_onscreen (GtkTextView *text_view) { GtkWidget *widget; GtkTextViewPrivate *priv; widget = GTK_WIDGET (text_view); priv = text_view->priv; DV(g_print(">Validating onscreen ("G_STRLOC")\n")); if (SCREEN_HEIGHT (widget) > 0) { GtkTextIter first_para; /* Be sure we've validated the stuff onscreen; if we * scrolled, these calls won't have any effect, because * they were called in the recursive validate_onscreen */ gtk_text_view_get_first_para_iter (text_view, &first_para); gtk_text_layout_validate_yrange (priv->layout, &first_para, 0, priv->first_para_pixels + SCREEN_HEIGHT (widget)); } priv->onscreen_validated = TRUE; DV(g_print(">Done validating onscreen, onscreen_validated = TRUE ("G_STRLOC")\n")); /* This can have the odd side effect of triggering a scroll, which should * flip "onscreen_validated" back to FALSE, but should also get us * back into this function to turn it on again. */ gtk_text_view_update_adjustments (text_view); g_assert (priv->onscreen_validated); } static void gtk_text_view_flush_first_validate (GtkTextView *text_view) { GtkTextViewPrivate *priv = text_view->priv; if (priv->first_validate_idle == 0) return; /* Do this first, which means that if an "invalidate" * occurs during any of this process, a new first_validate_callback * will be installed, and we'll start again. */ DV (g_print ("removing first validate in %s\n", G_STRLOC)); g_source_remove (priv->first_validate_idle); priv->first_validate_idle = 0; /* be sure we have up-to-date screen size set on the * layout. */ gtk_text_view_update_layout_width (text_view); /* Bail out if we invalidated stuff; scrolling right away will just * confuse the issue. */ if (priv->first_validate_idle != 0) { DV(g_print(">Width change forced requeue ("G_STRLOC")\n")); } else { /* scroll to any marks, if that's pending. This can jump us to * the validation codepath used for scrolling onscreen, if so we * bail out. It won't jump if already in that codepath since * value_changed is not recursive, so also validate if * necessary. */ if (!gtk_text_view_flush_scroll (text_view) || !priv->onscreen_validated) gtk_text_view_validate_onscreen (text_view); DV(g_print(">Leaving first validate idle ("G_STRLOC")\n")); g_assert (priv->onscreen_validated); } } static gboolean first_validate_callback (gpointer data) { GtkTextView *text_view = data; /* Note that some of this code is duplicated at the end of size_allocate, * keep in sync with that. */ DV(g_print(G_STRLOC"\n")); gtk_text_view_flush_first_validate (text_view); return FALSE; } static gboolean incremental_validate_callback (gpointer data) { GtkTextView *text_view = data; gboolean result = TRUE; DV(g_print(G_STRLOC"\n")); gtk_text_layout_validate (text_view->priv->layout, 2000); gtk_text_view_update_adjustments (text_view); if (gtk_text_layout_is_valid (text_view->priv->layout)) { text_view->priv->incremental_validate_idle = 0; result = FALSE; } return result; } static void gtk_text_view_invalidate (GtkTextView *text_view) { GtkTextViewPrivate *priv = text_view->priv; DV (g_print (">Invalidate, onscreen_validated = %d now FALSE ("G_STRLOC")\n", priv->onscreen_validated)); priv->onscreen_validated = FALSE; /* We'll invalidate when the layout is created */ if (priv->layout == NULL) return; if (!priv->first_validate_idle) { priv->first_validate_idle = gdk_threads_add_idle_full (GTK_PRIORITY_RESIZE - 2, first_validate_callback, text_view, NULL); g_source_set_name_by_id (priv->first_validate_idle, "[gtk+] first_validate_callback"); DV (g_print (G_STRLOC": adding first validate idle %d\n", priv->first_validate_idle)); } if (!priv->incremental_validate_idle) { priv->incremental_validate_idle = gdk_threads_add_idle_full (GTK_TEXT_VIEW_PRIORITY_VALIDATE, incremental_validate_callback, text_view, NULL); g_source_set_name_by_id (priv->incremental_validate_idle, "[gtk+] incremental_validate_callback"); DV (g_print (G_STRLOC": adding incremental validate idle %d\n", priv->incremental_validate_idle)); } } static void invalidated_handler (GtkTextLayout *layout, gpointer data) { GtkTextView *text_view; text_view = GTK_TEXT_VIEW (data); DV (g_print ("Invalidating due to layout invalidate signal\n")); gtk_text_view_invalidate (text_view); } static void changed_handler (GtkTextLayout *layout, gint start_y, gint old_height, gint new_height, gpointer data) { GtkTextView *text_view; GtkTextViewPrivate *priv; GtkWidget *widget; GdkRectangle visible_rect; GdkRectangle redraw_rect; text_view = GTK_TEXT_VIEW (data); priv = text_view->priv; widget = GTK_WIDGET (data); DV(g_print(">Lines Validated ("G_STRLOC")\n")); if (gtk_widget_get_realized (widget)) { gtk_text_view_get_rendered_rect (text_view, &visible_rect); redraw_rect.x = visible_rect.x; redraw_rect.width = visible_rect.width; redraw_rect.y = start_y; if (old_height == new_height) redraw_rect.height = old_height; else if (start_y + old_height > visible_rect.y) redraw_rect.height = MAX (0, visible_rect.y + visible_rect.height - start_y); else redraw_rect.height = 0; if (gdk_rectangle_intersect (&redraw_rect, &visible_rect, &redraw_rect)) { /* text_window_invalidate_rect() takes buffer coordinates */ text_window_invalidate_rect (priv->text_window, &redraw_rect); DV(g_print(" invalidated rect: %d,%d %d x %d\n", redraw_rect.x, redraw_rect.y, redraw_rect.width, redraw_rect.height)); if (priv->left_window) text_window_invalidate_rect (priv->left_window, &redraw_rect); if (priv->right_window) text_window_invalidate_rect (priv->right_window, &redraw_rect); if (priv->top_window) text_window_invalidate_rect (priv->top_window, &redraw_rect); if (priv->bottom_window) text_window_invalidate_rect (priv->bottom_window, &redraw_rect); queue_update_im_spot_location (text_view); } } if (old_height != new_height) { GSList *tmp_list; int new_first_para_top; int old_first_para_top; GtkTextIter first; /* If the bottom of the old area was above the top of the * screen, we need to scroll to keep the current top of the * screen in place. Remember that first_para_pixels is the * position of the top of the screen in coordinates relative to * the first paragraph onscreen. * * In short we are adding the height delta of the portion of the * changed region above first_para_mark to priv->yoffset. */ gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &first, priv->first_para_mark); gtk_text_layout_get_line_yrange (layout, &first, &new_first_para_top, NULL); old_first_para_top = priv->yoffset - priv->first_para_pixels + priv->top_border; if (new_first_para_top != old_first_para_top) { priv->yoffset += new_first_para_top - old_first_para_top; gtk_adjustment_set_value (text_view->priv->vadjustment, priv->yoffset); } /* FIXME be smarter about which anchored widgets we update */ tmp_list = priv->children; while (tmp_list != NULL) { GtkTextViewChild *child = tmp_list->data; if (child->anchor) gtk_text_view_update_child_allocation (text_view, child); tmp_list = tmp_list->next; } } { GtkRequisition old_req = priv->cached_size_request; GtkRequisition new_req; /* Use this instead of gtk_widget_size_request wrapper * to avoid the optimization which just returns widget->requisition * if a resize hasn't been queued. */ gtk_text_view_size_request (widget, &new_req); if (old_req.width != new_req.width || old_req.height != new_req.height) { gtk_widget_queue_resize_no_redraw (widget); } } } static void gtk_text_view_realize (GtkWidget *widget) { GtkAllocation allocation; GtkTextView *text_view; GtkTextViewPrivate *priv; GdkWindow *window; GdkWindowAttr attributes; gint attributes_mask; GSList *tmp_list; text_view = GTK_TEXT_VIEW (widget); priv = text_view->priv; gtk_widget_set_realized (widget, TRUE); gtk_widget_get_allocation (widget, &allocation); attributes.window_type = GDK_WINDOW_CHILD; attributes.x = allocation.x; attributes.y = allocation.y; attributes.width = allocation.width; attributes.height = allocation.height; attributes.wclass = GDK_INPUT_OUTPUT; attributes.visual = gtk_widget_get_visual (widget); attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK; attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL; window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask); gtk_widget_set_window (widget, window); gtk_widget_register_window (widget, window); text_window_realize (priv->text_window, widget); if (priv->left_window) text_window_realize (priv->left_window, widget); if (priv->top_window) text_window_realize (priv->top_window, widget); if (priv->right_window) text_window_realize (priv->right_window, widget); if (priv->bottom_window) text_window_realize (priv->bottom_window, widget); gtk_text_view_ensure_layout (text_view); gtk_text_view_invalidate (text_view); if (priv->buffer) { GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view), GDK_SELECTION_PRIMARY); gtk_text_buffer_add_selection_clipboard (priv->buffer, clipboard); } tmp_list = priv->children; while (tmp_list != NULL) { GtkTextViewChild *vc = tmp_list->data; text_view_child_set_parent_window (text_view, vc); tmp_list = tmp_list->next; } /* Ensure updating the spot location. */ gtk_text_view_update_im_spot_location (text_view); } static void gtk_text_view_unrealize (GtkWidget *widget) { GtkTextView *text_view; GtkTextViewPrivate *priv; text_view = GTK_TEXT_VIEW (widget); priv = text_view->priv; if (priv->buffer) { GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view), GDK_SELECTION_PRIMARY); gtk_text_buffer_remove_selection_clipboard (priv->buffer, clipboard); } gtk_text_view_remove_validate_idles (text_view); if (priv->popup_menu) { gtk_widget_destroy (priv->popup_menu); priv->popup_menu = NULL; } text_window_unrealize (priv->text_window); if (priv->left_window) text_window_unrealize (priv->left_window); if (priv->top_window) text_window_unrealize (priv->top_window); if (priv->right_window) text_window_unrealize (priv->right_window); if (priv->bottom_window) text_window_unrealize (priv->bottom_window); GTK_WIDGET_CLASS (gtk_text_view_parent_class)->unrealize (widget); } static void gtk_text_view_map (GtkWidget *widget) { GtkTextView *text_view; GtkTextViewPrivate *priv; text_view = GTK_TEXT_VIEW (widget); priv = text_view->priv; _gtk_pixel_cache_map (priv->pixel_cache); GTK_WIDGET_CLASS (gtk_text_view_parent_class)->map (widget); } static void gtk_text_view_unmap (GtkWidget *widget) { GtkTextView *text_view; GtkTextViewPrivate *priv; text_view = GTK_TEXT_VIEW (widget); priv = text_view->priv; GTK_WIDGET_CLASS (gtk_text_view_parent_class)->unmap (widget); _gtk_pixel_cache_unmap (priv->pixel_cache); } static void text_window_set_padding (GtkTextView *text_view, GtkStyleContext *context) { GtkTextViewPrivate *priv; GtkBorder padding, border; priv = text_view->priv; gtk_style_context_get_padding (context, gtk_style_context_get_state (context), &padding); gtk_style_context_get_border (context, gtk_style_context_get_state (context), &border); padding.left += border.left; padding.right += border.right; padding.top += border.top; padding.bottom += border.bottom; if (padding.left != priv->left_padding || padding.right != priv->right_padding || padding.top != priv->top_padding || padding.bottom != priv->bottom_padding) { priv->xoffset += priv->left_padding - padding.left; priv->yoffset += priv->top_padding - padding.top; priv->left_padding = padding.left; priv->right_padding = padding.right; priv->top_padding = padding.top; priv->bottom_padding = padding.bottom; priv->top_border = padding.top + priv->top_margin; priv->bottom_border = padding.bottom + priv->bottom_margin; priv->left_border = padding.left + priv->left_margin; priv->right_border = padding.right + priv->right_margin; if (priv->layout && priv->layout->default_style) { priv->layout->right_padding = priv->right_padding; priv->layout->left_padding = priv->left_padding; gtk_text_layout_default_style_changed (priv->layout); } } } static void gtk_text_view_style_updated (GtkWidget *widget) { GtkTextView *text_view; GtkTextViewPrivate *priv; PangoContext *ltr_context, *rtl_context; GtkStyleContext *style_context; GtkCssStyleChange *change; text_view = GTK_TEXT_VIEW (widget); priv = text_view->priv; GTK_WIDGET_CLASS (gtk_text_view_parent_class)->style_updated (widget); style_context = gtk_widget_get_style_context (widget); change = gtk_style_context_get_change (style_context); if ((change == NULL || gtk_css_style_change_affects (change, GTK_CSS_AFFECTS_TEXT)) && priv->layout && priv->layout->default_style) { gtk_text_view_set_attributes_from_style (text_view, priv->layout->default_style); ltr_context = gtk_widget_create_pango_context (widget); pango_context_set_base_dir (ltr_context, PANGO_DIRECTION_LTR); rtl_context = gtk_widget_create_pango_context (widget); pango_context_set_base_dir (rtl_context, PANGO_DIRECTION_RTL); gtk_text_layout_set_contexts (priv->layout, ltr_context, rtl_context); g_object_unref (ltr_context); g_object_unref (rtl_context); } } static void gtk_text_view_direction_changed (GtkWidget *widget, GtkTextDirection previous_direction) { GtkTextViewPrivate *priv = GTK_TEXT_VIEW (widget)->priv; if (priv->layout && priv->layout->default_style) { priv->layout->default_style->direction = gtk_widget_get_direction (widget); gtk_text_layout_default_style_changed (priv->layout); } } static void gtk_text_view_state_flags_changed (GtkWidget *widget, GtkStateFlags previous_state) { GtkTextView *text_view = GTK_TEXT_VIEW (widget); GtkTextViewPrivate *priv = text_view->priv; GdkCursor *cursor; GtkStateFlags state; if (gtk_widget_get_realized (widget)) { if (gtk_widget_is_sensitive (widget)) cursor = gdk_cursor_new_from_name (gtk_widget_get_display (widget), "text"); else cursor = NULL; gdk_window_set_cursor (priv->text_window->bin_window, cursor); if (cursor) g_object_unref (cursor); priv->mouse_cursor_obscured = FALSE; } if (!gtk_widget_is_sensitive (widget)) { /* Clear any selection */ gtk_text_view_unselect (text_view); } state = gtk_widget_get_state_flags (widget); gtk_css_node_set_state (priv->text_window->css_node, state); state &= ~GTK_STATE_FLAG_DROP_ACTIVE; gtk_css_node_set_state (priv->selection_node, state); if (priv->left_window) gtk_css_node_set_state (priv->left_window->css_node, state); if (priv->right_window) gtk_css_node_set_state (priv->right_window->css_node, state); if (priv->top_window) gtk_css_node_set_state (priv->top_window->css_node, state); if (priv->bottom_window) gtk_css_node_set_state (priv->bottom_window->css_node, state); gtk_widget_queue_draw (widget); } static void set_invisible_cursor (GdkWindow *window) { GdkDisplay *display; GdkCursor *cursor; display = gdk_window_get_display (window); cursor = gdk_cursor_new_from_name (display, "none"); gdk_window_set_cursor (window, cursor); g_clear_object (&cursor); } static void gtk_text_view_obscure_mouse_cursor (GtkTextView *text_view) { if (text_view->priv->mouse_cursor_obscured) return; set_invisible_cursor (text_view->priv->text_window->bin_window); text_view->priv->mouse_cursor_obscured = TRUE; } static void gtk_text_view_unobscure_mouse_cursor (GtkTextView *text_view) { if (text_view->priv->mouse_cursor_obscured) { GdkDisplay *display; GdkCursor *cursor; display = gtk_widget_get_display (GTK_WIDGET (text_view)); cursor = gdk_cursor_new_from_name (display, "text"); gdk_window_set_cursor (text_view->priv->text_window->bin_window, cursor); g_object_unref (cursor); text_view->priv->mouse_cursor_obscured = FALSE; } } /* * Events */ static gboolean get_event_coordinates (GdkEvent *event, gint *x, gint *y) { if (event) switch (event->type) { case GDK_MOTION_NOTIFY: *x = event->motion.x; *y = event->motion.y; return TRUE; break; case GDK_BUTTON_PRESS: case GDK_2BUTTON_PRESS: case GDK_3BUTTON_PRESS: case GDK_BUTTON_RELEASE: *x = event->button.x; *y = event->button.y; return TRUE; break; case GDK_KEY_PRESS: case GDK_KEY_RELEASE: case GDK_ENTER_NOTIFY: case GDK_LEAVE_NOTIFY: case GDK_PROPERTY_NOTIFY: case GDK_SELECTION_CLEAR: case GDK_SELECTION_REQUEST: case GDK_SELECTION_NOTIFY: case GDK_PROXIMITY_IN: case GDK_PROXIMITY_OUT: case GDK_DRAG_ENTER: case GDK_DRAG_LEAVE: case GDK_DRAG_MOTION: case GDK_DRAG_STATUS: case GDK_DROP_START: case GDK_DROP_FINISHED: default: return FALSE; break; } return FALSE; } static gint emit_event_on_tags (GtkWidget *widget, GdkEvent *event, GtkTextIter *iter) { GSList *tags; GSList *tmp; gboolean retval = FALSE; tags = gtk_text_iter_get_tags (iter); tmp = tags; while (tmp != NULL) { GtkTextTag *tag = tmp->data; if (gtk_text_tag_event (tag, G_OBJECT (widget), event, iter)) { retval = TRUE; break; } tmp = tmp->next; } g_slist_free (tags); return retval; } static void _text_window_to_widget_coords (GtkTextView *text_view, gint *x, gint *y) { GtkTextViewPrivate *priv = text_view->priv; gint border_width = gtk_container_get_border_width (GTK_CONTAINER (text_view)); *x += border_width; *y += border_width; if (priv->top_window) (*y) += priv->top_window->requisition.height; if (priv->left_window) (*x) += priv->left_window->requisition.width; } static void _widget_to_text_window_coords (GtkTextView *text_view, gint *x, gint *y) { GtkTextViewPrivate *priv = text_view->priv; gint border_width = gtk_container_get_border_width (GTK_CONTAINER (text_view)); *x -= border_width; *y -= border_width; if (priv->top_window) (*y) -= priv->top_window->requisition.height; if (priv->left_window) (*x) -= priv->left_window->requisition.width; } static void gtk_text_view_set_handle_position (GtkTextView *text_view, GtkTextIter *iter, GtkTextHandlePosition pos) { GtkTextViewPrivate *priv; GdkRectangle rect; gint x, y; priv = text_view->priv; gtk_text_view_get_cursor_locations (text_view, iter, &rect, NULL); x = rect.x - priv->xoffset; y = rect.y - priv->yoffset; if (!_gtk_text_handle_get_is_dragged (priv->text_handle, pos) && (x < 0 || x > SCREEN_WIDTH (text_view) || y < 0 || y > SCREEN_HEIGHT (text_view))) { /* Hide the handle if it's not being manipulated * and fell outside of the visible text area. */ _gtk_text_handle_set_visible (priv->text_handle, pos, FALSE); } else { GtkTextDirection dir = GTK_TEXT_DIR_LTR; GtkTextAttributes attributes = { 0 }; _gtk_text_handle_set_visible (priv->text_handle, pos, TRUE); rect.x = CLAMP (x, 0, SCREEN_WIDTH (text_view)); rect.y = CLAMP (y, 0, SCREEN_HEIGHT (text_view)); _text_window_to_widget_coords (text_view, &rect.x, &rect.y); _gtk_text_handle_set_position (priv->text_handle, pos, &rect); if (gtk_text_iter_get_attributes (iter, &attributes)) dir = attributes.direction; _gtk_text_handle_set_direction (priv->text_handle, pos, dir); } } static void gtk_text_view_show_magnifier (GtkTextView *text_view, GtkTextIter *iter, gint x, gint y) { cairo_rectangle_int_t rect; GtkTextViewPrivate *priv; GtkAllocation allocation; GtkRequisition req; #define N_LINES 1 gtk_widget_get_allocation (GTK_WIDGET (text_view), &allocation); priv = text_view->priv; _gtk_text_view_ensure_magnifier (text_view); /* Set size/content depending on iter rect */ gtk_text_view_get_iter_location (text_view, iter, (GdkRectangle *) &rect); rect.x = x + priv->xoffset; gtk_text_view_buffer_to_window_coords (text_view, GTK_TEXT_WINDOW_TEXT, rect.x, rect.y, &rect.x, &rect.y); _text_window_to_widget_coords (text_view, &rect.x, &rect.y); req.height = rect.height * N_LINES * _gtk_magnifier_get_magnification (GTK_MAGNIFIER (priv->magnifier)); req.width = MAX ((req.height * 4) / 3, 80); gtk_widget_set_size_request (priv->magnifier, req.width, req.height); _gtk_magnifier_set_coords (GTK_MAGNIFIER (priv->magnifier), rect.x, rect.y + rect.height / 2); rect.x = CLAMP (rect.x, 0, allocation.width); rect.y += rect.height / 4; rect.height -= rect.height / 4; gtk_popover_set_pointing_to (GTK_POPOVER (priv->magnifier_popover), &rect); gtk_popover_popup (GTK_POPOVER (priv->magnifier_popover)); #undef N_LINES } static void gtk_text_view_handle_dragged (GtkTextHandle *handle, GtkTextHandlePosition pos, gint x, gint y, GtkTextView *text_view) { GtkTextViewPrivate *priv; GtkTextIter old_cursor, old_bound; GtkTextIter cursor, bound, iter; GtkTextIter *min, *max; GtkTextHandleMode mode; GtkTextBuffer *buffer; GtkTextHandlePosition cursor_pos; priv = text_view->priv; buffer = get_buffer (text_view); mode = _gtk_text_handle_get_mode (handle); _widget_to_text_window_coords (text_view, &x, &y); gtk_text_view_selection_bubble_popup_unset (text_view); gtk_text_layout_get_iter_at_pixel (priv->layout, &iter, x + priv->xoffset, y + priv->yoffset); gtk_text_buffer_get_iter_at_mark (buffer, &old_cursor, gtk_text_buffer_get_insert (buffer)); gtk_text_buffer_get_iter_at_mark (buffer, &old_bound, gtk_text_buffer_get_selection_bound (buffer)); cursor = old_cursor; bound = old_bound; if (mode == GTK_TEXT_HANDLE_MODE_CURSOR || gtk_text_iter_compare (&cursor, &bound) >= 0) { cursor_pos = GTK_TEXT_HANDLE_POSITION_CURSOR; max = &cursor; min = &bound; } else { cursor_pos = GTK_TEXT_HANDLE_POSITION_SELECTION_START; max = &bound; min = &cursor; } if (pos == GTK_TEXT_HANDLE_POSITION_SELECTION_END) { if (mode == GTK_TEXT_HANDLE_MODE_SELECTION && gtk_text_iter_compare (&iter, min) <= 0) { iter = *min; gtk_text_iter_forward_char (&iter); } *max = iter; gtk_text_view_set_handle_position (text_view, &iter, pos); } else { if (mode == GTK_TEXT_HANDLE_MODE_SELECTION && gtk_text_iter_compare (&iter, max) >= 0) { iter = *max; gtk_text_iter_backward_char (&iter); } *min = iter; gtk_text_view_set_handle_position (text_view, &iter, pos); } if (gtk_text_iter_compare (&old_cursor, &cursor) != 0 || gtk_text_iter_compare (&old_bound, &bound) != 0) { if (mode == GTK_TEXT_HANDLE_MODE_CURSOR) gtk_text_buffer_place_cursor (buffer, &cursor); else gtk_text_buffer_select_range (buffer, &cursor, &bound); if (_gtk_text_handle_get_is_dragged (priv->text_handle, cursor_pos)) { text_view->priv->cursor_handle_dragged = TRUE; gtk_text_view_scroll_mark_onscreen (text_view, gtk_text_buffer_get_insert (buffer)); } else { text_view->priv->selection_handle_dragged = TRUE; gtk_text_view_scroll_mark_onscreen (text_view, gtk_text_buffer_get_selection_bound (buffer)); } } if (_gtk_text_handle_get_is_dragged (priv->text_handle, cursor_pos)) gtk_text_view_show_magnifier (text_view, &cursor, x, y); else gtk_text_view_show_magnifier (text_view, &bound, x, y); } static void gtk_text_view_handle_drag_started (GtkTextHandle *handle, GtkTextHandlePosition pos, GtkTextView *text_view) { text_view->priv->cursor_handle_dragged = FALSE; text_view->priv->selection_handle_dragged = FALSE; } static void gtk_text_view_handle_drag_finished (GtkTextHandle *handle, GtkTextHandlePosition pos, GtkTextView *text_view) { GtkTextViewPrivate *priv = text_view->priv; if (!priv->cursor_handle_dragged && !priv->selection_handle_dragged) { GtkTextBuffer *buffer; GtkTextIter cursor, start, end; GtkSettings *settings; guint double_click_time; settings = gtk_widget_get_settings (GTK_WIDGET (text_view)); g_object_get (settings, "gtk-double-click-time", &double_click_time, NULL); if (g_get_monotonic_time() - priv->handle_place_time < double_click_time * 1000) { buffer = get_buffer (text_view); gtk_text_buffer_get_iter_at_mark (buffer, &cursor, gtk_text_buffer_get_insert (buffer)); extend_selection (text_view, SELECT_WORDS, &cursor, &start, &end); gtk_text_buffer_select_range (buffer, &start, &end); gtk_text_view_update_handles (text_view, GTK_TEXT_HANDLE_MODE_SELECTION); } else gtk_text_view_selection_bubble_popup_set (text_view); } if (priv->magnifier_popover) gtk_popover_popdown (GTK_POPOVER (priv->magnifier_popover)); } static gboolean cursor_visible (GtkTextView *text_view); static void gtk_text_view_update_handles (GtkTextView *text_view, GtkTextHandleMode mode) { GtkTextViewPrivate *priv = text_view->priv; GtkTextIter cursor, bound, min, max; GtkTextBuffer *buffer; buffer = get_buffer (text_view); gtk_text_buffer_get_iter_at_mark (buffer, &cursor, gtk_text_buffer_get_insert (buffer)); gtk_text_buffer_get_iter_at_mark (buffer, &bound, gtk_text_buffer_get_selection_bound (buffer)); if (mode == GTK_TEXT_HANDLE_MODE_SELECTION && gtk_text_iter_compare (&cursor, &bound) == 0) { mode = GTK_TEXT_HANDLE_MODE_CURSOR; } if (mode == GTK_TEXT_HANDLE_MODE_CURSOR && (!gtk_widget_is_sensitive (GTK_WIDGET (text_view)) || !cursor_visible (text_view))) { mode = GTK_TEXT_HANDLE_MODE_NONE; } _gtk_text_handle_set_mode (priv->text_handle, mode); if (gtk_text_iter_compare (&cursor, &bound) >= 0) { min = bound; max = cursor; } else { min = cursor; max = bound; } if (mode != GTK_TEXT_HANDLE_MODE_NONE) gtk_text_view_set_handle_position (text_view, &max, GTK_TEXT_HANDLE_POSITION_SELECTION_END); if (mode == GTK_TEXT_HANDLE_MODE_SELECTION) gtk_text_view_set_handle_position (text_view, &min, GTK_TEXT_HANDLE_POSITION_SELECTION_START); } static gint gtk_text_view_event (GtkWidget *widget, GdkEvent *event) { GtkTextView *text_view; GtkTextViewPrivate *priv; gint x = 0, y = 0; text_view = GTK_TEXT_VIEW (widget); priv = text_view->priv; if (priv->layout == NULL || get_buffer (text_view) == NULL) return FALSE; if (event->any.window != priv->text_window->bin_window) return FALSE; if (get_event_coordinates (event, &x, &y)) { GtkTextIter iter; x += priv->xoffset; y += priv->yoffset; /* FIXME this is slow and we do it twice per event. * My favorite solution is to have GtkTextLayout cache * the last couple lookups. */ gtk_text_layout_get_iter_at_pixel (priv->layout, &iter, x, y); return emit_event_on_tags (widget, event, &iter); } else if (event->type == GDK_KEY_PRESS || event->type == GDK_KEY_RELEASE) { GtkTextIter iter; gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, gtk_text_buffer_get_insert (get_buffer (text_view))); return emit_event_on_tags (widget, event, &iter); } else return FALSE; } static gint gtk_text_view_key_press_event (GtkWidget *widget, GdkEventKey *event) { GtkTextView *text_view; GtkTextViewPrivate *priv; GtkTextMark *insert; GtkTextIter iter; gboolean can_insert; gboolean retval = FALSE; text_view = GTK_TEXT_VIEW (widget); priv = text_view->priv; if (priv->layout == NULL || get_buffer (text_view) == NULL) return FALSE; priv->handling_key_event = TRUE; /* Make sure input method knows where it is */ flush_update_im_spot_location (text_view); insert = gtk_text_buffer_get_insert (get_buffer (text_view)); gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, insert); can_insert = gtk_text_iter_can_insert (&iter, priv->editable); if (gtk_im_context_filter_keypress (priv->im_context, event)) { priv->need_im_reset = TRUE; if (!can_insert) gtk_text_view_reset_im_context (text_view); retval = TRUE; } /* Binding set */ else if (GTK_WIDGET_CLASS (gtk_text_view_parent_class)->key_press_event (widget, event)) { retval = TRUE; } /* use overall editability not can_insert, more predictable for users */ else if (priv->editable && (event->keyval == GDK_KEY_Return || event->keyval == GDK_KEY_ISO_Enter || event->keyval == GDK_KEY_KP_Enter)) { /* this won't actually insert the newline if the cursor isn't * editable */ gtk_text_view_reset_im_context (text_view); gtk_text_view_commit_text (text_view, "\n"); retval = TRUE; } /* Pass through Tab as literal tab, unless Control is held down */ else if ((event->keyval == GDK_KEY_Tab || event->keyval == GDK_KEY_KP_Tab || event->keyval == GDK_KEY_ISO_Left_Tab) && !(event->state & GDK_CONTROL_MASK)) { /* If the text widget isn't editable overall, or if the application * has turned off "accepts_tab", move the focus instead */ if (priv->accepts_tab && priv->editable) { gtk_text_view_reset_im_context (text_view); gtk_text_view_commit_text (text_view, "\t"); } else g_signal_emit_by_name (text_view, "move-focus", (event->state & GDK_SHIFT_MASK) ? GTK_DIR_TAB_BACKWARD : GTK_DIR_TAB_FORWARD); retval = TRUE; } else retval = FALSE; gtk_text_view_reset_blink_time (text_view); gtk_text_view_pend_cursor_blink (text_view); if (!event->send_event && priv->text_handle) _gtk_text_handle_set_mode (priv->text_handle, GTK_TEXT_HANDLE_MODE_NONE); gtk_text_view_selection_bubble_popup_unset (text_view); priv->handling_key_event = FALSE; return retval; } static gint gtk_text_view_key_release_event (GtkWidget *widget, GdkEventKey *event) { GtkTextView *text_view; GtkTextViewPrivate *priv; GtkTextMark *insert; GtkTextIter iter; gboolean retval = FALSE; text_view = GTK_TEXT_VIEW (widget); priv = text_view->priv; if (priv->layout == NULL || get_buffer (text_view) == NULL) return FALSE; priv->handling_key_event = TRUE; insert = gtk_text_buffer_get_insert (get_buffer (text_view)); gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, insert); if (gtk_text_iter_can_insert (&iter, priv->editable) && gtk_im_context_filter_keypress (priv->im_context, event)) { priv->need_im_reset = TRUE; retval = TRUE; } else retval = GTK_WIDGET_CLASS (gtk_text_view_parent_class)->key_release_event (widget, event); priv->handling_key_event = FALSE; return retval; } static gboolean get_iter_from_gesture (GtkTextView *text_view, GtkGesture *gesture, GtkTextIter *iter, gint *x, gint *y) { GdkEventSequence *sequence; GtkTextViewPrivate *priv; gint xcoord, ycoord; gdouble px, py; priv = text_view->priv; sequence = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture)); if (!gtk_gesture_get_point (gesture, sequence, &px, &py)) return FALSE; xcoord = px + priv->xoffset; ycoord = py + priv->yoffset; _widget_to_text_window_coords (text_view, &xcoord, &ycoord); gtk_text_layout_get_iter_at_pixel (priv->layout, iter, xcoord, ycoord); if (x) *x = xcoord; if (y) *y = ycoord; return TRUE; } static void gtk_text_view_multipress_gesture_pressed (GtkGestureMultiPress *gesture, gint n_press, gdouble x, gdouble y, GtkTextView *text_view) { GdkEventSequence *sequence; GtkTextViewPrivate *priv; const GdkEvent *event; gboolean is_touchscreen; GdkDevice *device; GtkTextIter iter; guint button; priv = text_view->priv; sequence = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture)); button = gtk_gesture_single_get_current_button (GTK_GESTURE_SINGLE (gesture)); event = gtk_gesture_get_last_event (GTK_GESTURE (gesture), sequence); gtk_widget_grab_focus (GTK_WIDGET (text_view)); if (gdk_event_get_window (event) != priv->text_window->bin_window) { /* Remove selection if any. */ gtk_text_view_unselect (text_view); return; } gtk_gesture_set_sequence_state (GTK_GESTURE (gesture), sequence, GTK_EVENT_SEQUENCE_CLAIMED); gtk_text_view_reset_blink_time (text_view); #if 0 /* debug hack */ if (event->button == GDK_BUTTON_SECONDARY && (event->state & GDK_CONTROL_MASK) != 0) _gtk_text_buffer_spew (GTK_TEXT_VIEW (widget)->buffer); else if (event->button == GDK_BUTTON_SECONDARY) gtk_text_layout_spew (GTK_TEXT_VIEW (widget)->layout); #endif device = gdk_event_get_source_device ((GdkEvent *) event); is_touchscreen = gtk_simulate_touchscreen () || gdk_device_get_source (device) == GDK_SOURCE_TOUCHSCREEN; if (n_press == 1) gtk_text_view_reset_im_context (text_view); if (n_press == 1 && gdk_event_triggers_context_menu (event)) { gtk_text_view_do_popup (text_view, event); } else if (button == GDK_BUTTON_MIDDLE && get_middle_click_paste (text_view)) { /* We do not want to scroll back to the insert iter when we paste with the middle button */ priv->scroll_after_paste = FALSE; get_iter_from_gesture (text_view, priv->multipress_gesture, &iter, NULL, NULL); gtk_text_buffer_paste_clipboard (get_buffer (text_view), gtk_widget_get_clipboard (GTK_WIDGET (text_view), GDK_SELECTION_PRIMARY), &iter, priv->editable); } else if (button == GDK_BUTTON_PRIMARY) { GtkTextHandleMode handle_mode = GTK_TEXT_HANDLE_MODE_NONE; gboolean extends = FALSE; GdkModifierType state; gdk_event_get_state (event, &state); if (state & gtk_widget_get_modifier_mask (GTK_WIDGET (text_view), GDK_MODIFIER_INTENT_EXTEND_SELECTION)) extends = TRUE; switch (n_press) { case 1: { /* If we're in the selection, start a drag copy/move of the * selection; otherwise, start creating a new selection. */ GtkTextIter start, end; if (is_touchscreen) handle_mode = GTK_TEXT_HANDLE_MODE_CURSOR; get_iter_from_gesture (text_view, priv->multipress_gesture, &iter, NULL, NULL); if (gtk_text_buffer_get_selection_bounds (get_buffer (text_view), &start, &end) && gtk_text_iter_in_range (&iter, &start, &end) && !extends) { if (is_touchscreen) { if (!priv->selection_bubble || !gtk_widget_get_visible (priv->selection_bubble)) { gtk_text_view_selection_bubble_popup_set (text_view); handle_mode = GTK_TEXT_HANDLE_MODE_NONE; } else { gtk_text_view_selection_bubble_popup_unset (text_view); handle_mode = GTK_TEXT_HANDLE_MODE_SELECTION; } } else { /* Claim the sequence on the drag gesture, but attach no * selection data, this is a special case to start DnD. */ gtk_gesture_set_state (priv->drag_gesture, GTK_EVENT_SEQUENCE_CLAIMED); } break; } else { gtk_text_view_selection_bubble_popup_unset (text_view); if (is_touchscreen) { gtk_text_buffer_place_cursor (get_buffer (text_view), &iter); priv->handle_place_time = g_get_monotonic_time (); } else gtk_text_view_start_selection_drag (text_view, &iter, SELECT_CHARACTERS, extends); } break; } case 2: case 3: if (is_touchscreen) { handle_mode = GTK_TEXT_HANDLE_MODE_SELECTION; break; } gtk_text_view_end_selection_drag (text_view); get_iter_from_gesture (text_view, priv->multipress_gesture, &iter, NULL, NULL); gtk_text_view_start_selection_drag (text_view, &iter, n_press == 2 ? SELECT_WORDS : SELECT_LINES, extends); break; default: break; } _gtk_text_view_ensure_text_handles (text_view); gtk_text_view_update_handles (text_view, handle_mode); } if (n_press >= 3) gtk_event_controller_reset (GTK_EVENT_CONTROLLER (gesture)); } static void keymap_direction_changed (GdkKeymap *keymap, GtkTextView *text_view) { gtk_text_view_check_keymap_direction (text_view); } static gint gtk_text_view_focus_in_event (GtkWidget *widget, GdkEventFocus *event) { GtkTextView *text_view; GtkTextViewPrivate *priv; text_view = GTK_TEXT_VIEW (widget); priv = text_view->priv; gtk_widget_queue_draw (widget); DV(g_print (G_STRLOC": focus_in_event\n")); gtk_text_view_reset_blink_time (text_view); if (cursor_visible (text_view) && priv->layout) { gtk_text_layout_set_cursor_visible (priv->layout, TRUE); gtk_text_view_check_cursor_blink (text_view); } g_signal_connect (gdk_keymap_get_for_display (gtk_widget_get_display (widget)), "direction-changed", G_CALLBACK (keymap_direction_changed), text_view); gtk_text_view_check_keymap_direction (text_view); if (priv->editable) { priv->need_im_reset = TRUE; gtk_im_context_focus_in (priv->im_context); } return FALSE; } static gint gtk_text_view_focus_out_event (GtkWidget *widget, GdkEventFocus *event) { GtkTextView *text_view; GtkTextViewPrivate *priv; text_view = GTK_TEXT_VIEW (widget); priv = text_view->priv; gtk_text_view_end_selection_drag (text_view); gtk_widget_queue_draw (widget); DV(g_print (G_STRLOC": focus_out_event\n")); if (cursor_visible (text_view) && priv->layout) { gtk_text_view_check_cursor_blink (text_view); gtk_text_layout_set_cursor_visible (priv->layout, FALSE); } g_signal_handlers_disconnect_by_func (gdk_keymap_get_for_display (gtk_widget_get_display (widget)), keymap_direction_changed, text_view); gtk_text_view_selection_bubble_popup_unset (text_view); if (priv->text_handle) _gtk_text_handle_set_mode (priv->text_handle, GTK_TEXT_HANDLE_MODE_NONE); if (priv->editable) { priv->need_im_reset = TRUE; gtk_im_context_focus_out (priv->im_context); } return FALSE; } static gboolean gtk_text_view_motion_event (GtkWidget *widget, GdkEventMotion *event) { GtkTextView *text_view = GTK_TEXT_VIEW (widget); gtk_text_view_unobscure_mouse_cursor (text_view); return GTK_WIDGET_CLASS (gtk_text_view_parent_class)->motion_notify_event (widget, event); } static void gtk_text_view_paint (GtkWidget *widget, cairo_t *cr) { GtkTextView *text_view; GtkTextViewPrivate *priv; text_view = GTK_TEXT_VIEW (widget); priv = text_view->priv; g_return_if_fail (priv->layout != NULL); g_return_if_fail (priv->xoffset >= - priv->left_padding); g_return_if_fail (priv->yoffset >= - priv->top_border); while (priv->first_validate_idle != 0) { DV (g_print (G_STRLOC": first_validate_idle: %d\n", priv->first_validate_idle)); gtk_text_view_flush_first_validate (text_view); } if (!priv->onscreen_validated) { g_warning (G_STRLOC ": somehow some text lines were modified or scrolling occurred since the last validation of lines on the screen - may be a text widget bug."); g_assert_not_reached (); } #if 0 printf ("painting %d,%d %d x %d\n", area->x, area->y, area->width, area->height); #endif cairo_save (cr); cairo_translate (cr, -priv->xoffset, -priv->yoffset); gtk_text_layout_draw (priv->layout, widget, cr, NULL); cairo_restore (cr); } static void draw_text (cairo_t *cr, gpointer user_data) { GtkWidget *widget = user_data; GtkTextView *text_view = GTK_TEXT_VIEW (widget); GtkTextViewPrivate *priv = text_view->priv; GtkStyleContext *context; context = gtk_widget_get_style_context (widget); gtk_style_context_save_to_node (context, text_view->priv->text_window->css_node); gtk_render_background (context, cr, -priv->xoffset, -priv->yoffset - priv->top_border, MAX (SCREEN_WIDTH (text_view), priv->width), MAX (SCREEN_HEIGHT (text_view), priv->height)); gtk_render_frame (context, cr, -priv->xoffset, -priv->yoffset - priv->top_border, MAX (SCREEN_WIDTH (text_view), priv->width), MAX (SCREEN_HEIGHT (text_view), priv->height)); gtk_style_context_restore (context); if (GTK_TEXT_VIEW_GET_CLASS (text_view)->draw_layer != NULL) { cairo_save (cr); GTK_TEXT_VIEW_GET_CLASS (text_view)->draw_layer (text_view, GTK_TEXT_VIEW_LAYER_BELOW, cr); cairo_restore (cr); cairo_save (cr); cairo_translate (cr, -priv->xoffset, -priv->yoffset); GTK_TEXT_VIEW_GET_CLASS (text_view)->draw_layer (text_view, GTK_TEXT_VIEW_LAYER_BELOW_TEXT, cr); cairo_restore (cr); } gtk_text_view_paint (widget, cr); if (GTK_TEXT_VIEW_GET_CLASS (text_view)->draw_layer != NULL) { cairo_save (cr); GTK_TEXT_VIEW_GET_CLASS (text_view)->draw_layer (text_view, GTK_TEXT_VIEW_LAYER_ABOVE, cr); cairo_restore (cr); cairo_save (cr); cairo_translate (cr, -priv->xoffset, -priv->yoffset); GTK_TEXT_VIEW_GET_CLASS (text_view)->draw_layer (text_view, GTK_TEXT_VIEW_LAYER_ABOVE_TEXT, cr); cairo_restore (cr); } } static void paint_border_window (GtkTextView *text_view, cairo_t *cr, GtkTextWindow *text_window, GtkStyleContext *context) { GdkWindow *window; if (text_window == NULL) return; window = gtk_text_view_get_window (text_view, text_window->type); if (gtk_cairo_should_draw_window (cr, window)) { gint w, h; gtk_style_context_save_to_node (context, text_window->css_node); w = gdk_window_get_width (window); h = gdk_window_get_height (window); cairo_save (cr); gtk_cairo_transform_to_window (cr, GTK_WIDGET (text_view), window); gtk_render_background (context, cr, 0, 0, w, h); cairo_restore (cr); gtk_style_context_restore (context); } } static gboolean gtk_text_view_draw (GtkWidget *widget, cairo_t *cr) { GtkTextViewPrivate *priv = ((GtkTextView *)widget)->priv; GSList *tmp_list; GdkWindow *window; GtkStyleContext *context; context = gtk_widget_get_style_context (widget); text_window_set_padding (GTK_TEXT_VIEW (widget), context); if (gtk_cairo_should_draw_window (cr, gtk_widget_get_window (widget))) { gtk_render_background (context, cr, 0, 0, gtk_widget_get_allocated_width (widget), gtk_widget_get_allocated_height (widget)); } window = gtk_text_view_get_window (GTK_TEXT_VIEW (widget), GTK_TEXT_WINDOW_TEXT); if (gtk_cairo_should_draw_window (cr, window)) { cairo_rectangle_int_t view_rect; cairo_rectangle_int_t canvas_rect; GtkAllocation alloc; DV(g_print (">Exposed ("G_STRLOC")\n")); gtk_widget_get_allocation (widget, &alloc); view_rect.x = 0; view_rect.y = 0; view_rect.width = gdk_window_get_width (window); view_rect.height = gdk_window_get_height (window); canvas_rect.x = -gtk_adjustment_get_value (priv->hadjustment); canvas_rect.y = -gtk_adjustment_get_value (priv->vadjustment); canvas_rect.width = priv->width; canvas_rect.height = priv->height; cairo_save (cr); gtk_cairo_transform_to_window (cr, widget, window); _gtk_pixel_cache_draw (priv->pixel_cache, cr, window, &view_rect, &canvas_rect, draw_text, widget); cairo_restore (cr); } paint_border_window (GTK_TEXT_VIEW (widget), cr, priv->left_window, context); paint_border_window (GTK_TEXT_VIEW (widget), cr, priv->right_window, context); paint_border_window (GTK_TEXT_VIEW (widget), cr, priv->top_window, context); paint_border_window (GTK_TEXT_VIEW (widget), cr, priv->bottom_window, context); /* Propagate exposes to all unanchored children. * Anchored children are handled in gtk_text_view_paint(). */ tmp_list = GTK_TEXT_VIEW (widget)->priv->children; while (tmp_list != NULL) { GtkTextViewChild *vc = tmp_list->data; /* propagate_draw checks that event->window matches * child->window */ gtk_container_propagate_draw (GTK_CONTAINER (widget), vc->widget, cr); tmp_list = tmp_list->next; } return FALSE; } static gboolean gtk_text_view_focus (GtkWidget *widget, GtkDirectionType direction) { GtkContainer *container; gboolean result; container = GTK_CONTAINER (widget); if (!gtk_widget_is_focus (widget) && gtk_container_get_focus_child (container) == NULL) { if (gtk_widget_get_can_focus (widget)) { gtk_widget_grab_focus (widget); return TRUE; } return FALSE; } else { gboolean can_focus; /* * Unset CAN_FOCUS flag so that gtk_container_focus() allows * children to get the focus */ can_focus = gtk_widget_get_can_focus (widget); gtk_widget_set_can_focus (widget, FALSE); result = GTK_WIDGET_CLASS (gtk_text_view_parent_class)->focus (widget, direction); gtk_widget_set_can_focus (widget, can_focus); return result; } } /* * Container */ static void gtk_text_view_add (GtkContainer *container, GtkWidget *child) { /* This is pretty random. */ gtk_text_view_add_child_in_window (GTK_TEXT_VIEW (container), child, GTK_TEXT_WINDOW_WIDGET, 0, 0); } static void gtk_text_view_remove (GtkContainer *container, GtkWidget *child) { GtkTextView *text_view; GtkTextViewPrivate *priv; GtkTextViewChild *vc; GSList *iter; text_view = GTK_TEXT_VIEW (container); priv = text_view->priv; vc = NULL; iter = priv->children; while (iter != NULL) { vc = iter->data; if (vc->widget == child) break; iter = iter->next; } g_assert (iter != NULL); /* be sure we had the child in the list */ priv->children = g_slist_remove (priv->children, vc); gtk_widget_unparent (vc->widget); text_view_child_free (vc); } static void gtk_text_view_forall (GtkContainer *container, gboolean include_internals, GtkCallback callback, gpointer callback_data) { GSList *iter; GtkTextView *text_view; GSList *copy; g_return_if_fail (GTK_IS_TEXT_VIEW (container)); g_return_if_fail (callback != NULL); text_view = GTK_TEXT_VIEW (container); copy = g_slist_copy (text_view->priv->children); iter = copy; while (iter != NULL) { GtkTextViewChild *vc = iter->data; (* callback) (vc->widget, callback_data); iter = iter->next; } g_slist_free (copy); } #define CURSOR_ON_MULTIPLIER 2 #define CURSOR_OFF_MULTIPLIER 1 #define CURSOR_PEND_MULTIPLIER 3 #define CURSOR_DIVIDER 3 static gboolean cursor_blinks (GtkTextView *text_view) { GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (text_view)); gboolean blink; #ifdef DEBUG_VALIDATION_AND_SCROLLING return FALSE; #endif #ifdef G_ENABLE_DEBUG if (GTK_DEBUG_CHECK (UPDATES)) return FALSE; #endif g_object_get (settings, "gtk-cursor-blink", &blink, NULL); if (!blink) return FALSE; if (text_view->priv->editable) { GtkTextMark *insert; GtkTextIter iter; insert = gtk_text_buffer_get_insert (get_buffer (text_view)); gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, insert); if (gtk_text_iter_editable (&iter, text_view->priv->editable)) return blink; } return FALSE; } static gboolean cursor_visible (GtkTextView *text_view) { GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (text_view)); gboolean use_caret; g_object_get (settings, "gtk-keynav-use-caret", &use_caret, NULL); return use_caret || text_view->priv->cursor_visible; } static gboolean get_middle_click_paste (GtkTextView *text_view) { GtkSettings *settings; gboolean paste; settings = gtk_widget_get_settings (GTK_WIDGET (text_view)); g_object_get (settings, "gtk-enable-primary-paste", &paste, NULL); return paste; } static gint get_cursor_time (GtkTextView *text_view) { GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (text_view)); gint time; g_object_get (settings, "gtk-cursor-blink-time", &time, NULL); return time; } static gint get_cursor_blink_timeout (GtkTextView *text_view) { GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (text_view)); gint time; g_object_get (settings, "gtk-cursor-blink-timeout", &time, NULL); return time; } /* * Blink! */ static gint blink_cb (gpointer data) { GtkTextView *text_view; GtkTextViewPrivate *priv; gboolean visible; gint blink_timeout; text_view = GTK_TEXT_VIEW (data); priv = text_view->priv; if (!gtk_widget_has_focus (GTK_WIDGET (text_view))) { g_warning ("GtkTextView - did not receive focus-out-event. If you\n" "connect a handler to this signal, it must return\n" "FALSE so the text view gets the event as well"); gtk_text_view_check_cursor_blink (text_view); return FALSE; } g_assert (priv->layout); g_assert (cursor_visible (text_view)); visible = gtk_text_layout_get_cursor_visible (priv->layout); blink_timeout = get_cursor_blink_timeout (text_view); if (priv->blink_time > 1000 * blink_timeout && blink_timeout < G_MAXINT/1000) { /* we've blinked enough without the user doing anything, stop blinking */ visible = 0; priv->blink_timeout = 0; } else if (visible) { priv->blink_timeout = gdk_threads_add_timeout (get_cursor_time (text_view) * CURSOR_OFF_MULTIPLIER / CURSOR_DIVIDER, blink_cb, text_view); g_source_set_name_by_id (priv->blink_timeout, "[gtk+] blink_cb"); } else { priv->blink_timeout = gdk_threads_add_timeout (get_cursor_time (text_view) * CURSOR_ON_MULTIPLIER / CURSOR_DIVIDER, blink_cb, text_view); g_source_set_name_by_id (priv->blink_timeout, "[gtk+] blink_cb"); priv->blink_time += get_cursor_time (text_view); } /* Block changed_handler while changing the layout's cursor visibility * because it would expose the whole paragraph. Instead, we expose * the cursor's area(s) manually below. */ g_signal_handlers_block_by_func (priv->layout, changed_handler, text_view); gtk_text_layout_set_cursor_visible (priv->layout, !visible); g_signal_handlers_unblock_by_func (priv->layout, changed_handler, text_view); text_window_invalidate_cursors (priv->text_window); /* Remove ourselves */ return FALSE; } static void gtk_text_view_stop_cursor_blink (GtkTextView *text_view) { if (text_view->priv->blink_timeout) { g_source_remove (text_view->priv->blink_timeout); text_view->priv->blink_timeout = 0; } } static void gtk_text_view_check_cursor_blink (GtkTextView *text_view) { GtkTextViewPrivate *priv = text_view->priv; if (priv->layout != NULL && cursor_visible (text_view) && gtk_widget_has_focus (GTK_WIDGET (text_view))) { if (cursor_blinks (text_view)) { if (priv->blink_timeout == 0) { gtk_text_layout_set_cursor_visible (priv->layout, TRUE); priv->blink_timeout = gdk_threads_add_timeout (get_cursor_time (text_view) * CURSOR_OFF_MULTIPLIER / CURSOR_DIVIDER, blink_cb, text_view); g_source_set_name_by_id (priv->blink_timeout, "[gtk+] blink_cb"); } } else { gtk_text_view_stop_cursor_blink (text_view); gtk_text_layout_set_cursor_visible (priv->layout, TRUE); } } else { gtk_text_view_stop_cursor_blink (text_view); gtk_text_layout_set_cursor_visible (priv->layout, FALSE); } } static void gtk_text_view_pend_cursor_blink (GtkTextView *text_view) { GtkTextViewPrivate *priv = text_view->priv; if (priv->layout != NULL && cursor_visible (text_view) && gtk_widget_has_focus (GTK_WIDGET (text_view)) && cursor_blinks (text_view)) { gtk_text_view_stop_cursor_blink (text_view); gtk_text_layout_set_cursor_visible (priv->layout, TRUE); priv->blink_timeout = gdk_threads_add_timeout (get_cursor_time (text_view) * CURSOR_PEND_MULTIPLIER / CURSOR_DIVIDER, blink_cb, text_view); g_source_set_name_by_id (priv->blink_timeout, "[gtk+] blink_cb"); } } static void gtk_text_view_reset_blink_time (GtkTextView *text_view) { GtkTextViewPrivate *priv = text_view->priv; priv->blink_time = 0; } /* * Key binding handlers */ static gboolean gtk_text_view_move_iter_by_lines (GtkTextView *text_view, GtkTextIter *newplace, gint count) { gboolean ret = TRUE; while (count < 0) { ret = gtk_text_layout_move_iter_to_previous_line (text_view->priv->layout, newplace); count++; } while (count > 0) { ret = gtk_text_layout_move_iter_to_next_line (text_view->priv->layout, newplace); count--; } return ret; } static void move_cursor (GtkTextView *text_view, const GtkTextIter *new_location, gboolean extend_selection) { if (extend_selection) gtk_text_buffer_move_mark_by_name (get_buffer (text_view), "insert", new_location); else gtk_text_buffer_place_cursor (get_buffer (text_view), new_location); gtk_text_view_check_cursor_blink (text_view); } static gboolean iter_line_is_rtl (const GtkTextIter *iter) { GtkTextIter start, end; char *text; PangoDirection direction; start = end = *iter; gtk_text_iter_set_line_offset (&start, 0); gtk_text_iter_forward_line (&end); text = gtk_text_iter_get_visible_text (&start, &end); direction = pango_find_base_dir (text, -1); g_free (text); return direction == PANGO_DIRECTION_RTL; } static void gtk_text_view_move_cursor (GtkTextView *text_view, GtkMovementStep step, gint count, gboolean extend_selection) { GtkTextViewPrivate *priv; GtkTextIter insert; GtkTextIter newplace; gboolean cancel_selection = FALSE; gint cursor_x_pos = 0; GtkDirectionType leave_direction = -1; priv = text_view->priv; if (!cursor_visible (text_view)) { GtkScrollStep scroll_step; gdouble old_xpos, old_ypos; switch (step) { case GTK_MOVEMENT_VISUAL_POSITIONS: leave_direction = count > 0 ? GTK_DIR_RIGHT : GTK_DIR_LEFT; /* fall through */ case GTK_MOVEMENT_LOGICAL_POSITIONS: case GTK_MOVEMENT_WORDS: scroll_step = GTK_SCROLL_HORIZONTAL_STEPS; break; case GTK_MOVEMENT_DISPLAY_LINE_ENDS: scroll_step = GTK_SCROLL_HORIZONTAL_ENDS; break; case GTK_MOVEMENT_DISPLAY_LINES: leave_direction = count > 0 ? GTK_DIR_DOWN : GTK_DIR_UP; /* fall through */ case GTK_MOVEMENT_PARAGRAPHS: case GTK_MOVEMENT_PARAGRAPH_ENDS: scroll_step = GTK_SCROLL_STEPS; break; case GTK_MOVEMENT_PAGES: scroll_step = GTK_SCROLL_PAGES; break; case GTK_MOVEMENT_HORIZONTAL_PAGES: scroll_step = GTK_SCROLL_HORIZONTAL_PAGES; break; case GTK_MOVEMENT_BUFFER_ENDS: scroll_step = GTK_SCROLL_ENDS; break; default: scroll_step = GTK_SCROLL_PAGES; break; } old_xpos = gtk_adjustment_get_value (priv->hadjustment); old_ypos = gtk_adjustment_get_value (priv->vadjustment); gtk_text_view_move_viewport (text_view, scroll_step, count); if ((old_xpos == gtk_adjustment_get_target_value (priv->hadjustment) && old_ypos == gtk_adjustment_get_target_value (priv->vadjustment)) && leave_direction != (GtkDirectionType)-1 && !gtk_widget_keynav_failed (GTK_WIDGET (text_view), leave_direction)) { g_signal_emit_by_name (text_view, "move-focus", leave_direction); } return; } gtk_text_view_reset_im_context (text_view); if (step == GTK_MOVEMENT_PAGES) { if (!gtk_text_view_scroll_pages (text_view, count, extend_selection)) gtk_widget_error_bell (GTK_WIDGET (text_view)); gtk_text_view_check_cursor_blink (text_view); gtk_text_view_pend_cursor_blink (text_view); return; } else if (step == GTK_MOVEMENT_HORIZONTAL_PAGES) { if (!gtk_text_view_scroll_hpages (text_view, count, extend_selection)) gtk_widget_error_bell (GTK_WIDGET (text_view)); gtk_text_view_check_cursor_blink (text_view); gtk_text_view_pend_cursor_blink (text_view); return; } gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert, gtk_text_buffer_get_insert (get_buffer (text_view))); if (! extend_selection) { gboolean move_forward = count > 0; GtkTextIter sel_bound; gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &sel_bound, gtk_text_buffer_get_selection_bound (get_buffer (text_view))); if (iter_line_is_rtl (&insert)) move_forward = !move_forward; /* if we move forward, assume the cursor is at the end of the selection; * if we move backward, assume the cursor is at the start */ if (move_forward) gtk_text_iter_order (&sel_bound, &insert); else gtk_text_iter_order (&insert, &sel_bound); /* if we actually have a selection, just move *to* the beginning/end * of the selection and not *from* there on LOGICAL_POSITIONS * and VISUAL_POSITIONS movement */ if (! gtk_text_iter_equal (&sel_bound, &insert)) cancel_selection = TRUE; } newplace = insert; if (step == GTK_MOVEMENT_DISPLAY_LINES) gtk_text_view_get_virtual_cursor_pos (text_view, &insert, &cursor_x_pos, NULL); switch (step) { case GTK_MOVEMENT_LOGICAL_POSITIONS: if (! cancel_selection) gtk_text_iter_forward_visible_cursor_positions (&newplace, count); break; case GTK_MOVEMENT_VISUAL_POSITIONS: if (! cancel_selection) gtk_text_layout_move_iter_visually (priv->layout, &newplace, count); break; case GTK_MOVEMENT_WORDS: if (iter_line_is_rtl (&newplace)) count *= -1; if (count < 0) gtk_text_iter_backward_visible_word_starts (&newplace, -count); else if (count > 0) { if (!gtk_text_iter_forward_visible_word_ends (&newplace, count)) gtk_text_iter_forward_to_line_end (&newplace); } break; case GTK_MOVEMENT_DISPLAY_LINES: if (count < 0) { leave_direction = GTK_DIR_UP; if (gtk_text_view_move_iter_by_lines (text_view, &newplace, count)) gtk_text_layout_move_iter_to_x (priv->layout, &newplace, cursor_x_pos); else gtk_text_iter_set_line_offset (&newplace, 0); } if (count > 0) { leave_direction = GTK_DIR_DOWN; if (gtk_text_view_move_iter_by_lines (text_view, &newplace, count)) gtk_text_layout_move_iter_to_x (priv->layout, &newplace, cursor_x_pos); else gtk_text_iter_forward_to_line_end (&newplace); } break; case GTK_MOVEMENT_DISPLAY_LINE_ENDS: if (count > 1) gtk_text_view_move_iter_by_lines (text_view, &newplace, --count); else if (count < -1) gtk_text_view_move_iter_by_lines (text_view, &newplace, ++count); if (count != 0) gtk_text_layout_move_iter_to_line_end (priv->layout, &newplace, count); break; case GTK_MOVEMENT_PARAGRAPHS: if (count > 0) { if (!gtk_text_iter_ends_line (&newplace)) { gtk_text_iter_forward_to_line_end (&newplace); --count; } gtk_text_iter_forward_visible_lines (&newplace, count); gtk_text_iter_forward_to_line_end (&newplace); } else if (count < 0) { if (gtk_text_iter_get_line_offset (&newplace) > 0) gtk_text_iter_set_line_offset (&newplace, 0); gtk_text_iter_forward_visible_lines (&newplace, count); gtk_text_iter_set_line_offset (&newplace, 0); } break; case GTK_MOVEMENT_PARAGRAPH_ENDS: if (count > 0) { if (!gtk_text_iter_ends_line (&newplace)) gtk_text_iter_forward_to_line_end (&newplace); } else if (count < 0) { gtk_text_iter_set_line_offset (&newplace, 0); } break; case GTK_MOVEMENT_BUFFER_ENDS: if (count > 0) gtk_text_buffer_get_end_iter (get_buffer (text_view), &newplace); else if (count < 0) gtk_text_buffer_get_iter_at_offset (get_buffer (text_view), &newplace, 0); break; default: break; } /* call move_cursor() even if the cursor hasn't moved, since it cancels the selection */ move_cursor (text_view, &newplace, extend_selection); if (!gtk_text_iter_equal (&insert, &newplace)) { DV(g_print (G_STRLOC": scrolling onscreen\n")); gtk_text_view_scroll_mark_onscreen (text_view, gtk_text_buffer_get_insert (get_buffer (text_view))); if (step == GTK_MOVEMENT_DISPLAY_LINES) gtk_text_view_set_virtual_cursor_pos (text_view, cursor_x_pos, -1); } else if (leave_direction != (GtkDirectionType)-1) { if (!gtk_widget_keynav_failed (GTK_WIDGET (text_view), leave_direction)) { g_signal_emit_by_name (text_view, "move-focus", leave_direction); } } else if (! cancel_selection) { gtk_widget_error_bell (GTK_WIDGET (text_view)); } gtk_text_view_check_cursor_blink (text_view); gtk_text_view_pend_cursor_blink (text_view); } static void gtk_text_view_move_viewport (GtkTextView *text_view, GtkScrollStep step, gint count) { GtkAdjustment *adjustment; gdouble increment; switch (step) { case GTK_SCROLL_STEPS: case GTK_SCROLL_PAGES: case GTK_SCROLL_ENDS: adjustment = text_view->priv->vadjustment; break; case GTK_SCROLL_HORIZONTAL_STEPS: case GTK_SCROLL_HORIZONTAL_PAGES: case GTK_SCROLL_HORIZONTAL_ENDS: adjustment = text_view->priv->hadjustment; break; default: adjustment = text_view->priv->vadjustment; break; } switch (step) { case GTK_SCROLL_STEPS: case GTK_SCROLL_HORIZONTAL_STEPS: increment = gtk_adjustment_get_step_increment (adjustment); break; case GTK_SCROLL_PAGES: case GTK_SCROLL_HORIZONTAL_PAGES: increment = gtk_adjustment_get_page_increment (adjustment); break; case GTK_SCROLL_ENDS: case GTK_SCROLL_HORIZONTAL_ENDS: increment = gtk_adjustment_get_upper (adjustment) - gtk_adjustment_get_lower (adjustment); break; default: increment = 0.0; break; } gtk_adjustment_animate_to_value (adjustment, gtk_adjustment_get_value (adjustment) + count * increment); } static void gtk_text_view_set_anchor (GtkTextView *text_view) { GtkTextIter insert; gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert, gtk_text_buffer_get_insert (get_buffer (text_view))); gtk_text_buffer_create_mark (get_buffer (text_view), "anchor", &insert, TRUE); } static gboolean gtk_text_view_scroll_pages (GtkTextView *text_view, gint count, gboolean extend_selection) { GtkTextViewPrivate *priv; GtkAdjustment *adjustment; gint cursor_x_pos, cursor_y_pos; GtkTextMark *insert_mark; GtkTextIter old_insert; GtkTextIter new_insert; GtkTextIter anchor; gdouble newval; gdouble oldval; gint y0, y1; priv = text_view->priv; g_return_val_if_fail (priv->vadjustment != NULL, FALSE); adjustment = priv->vadjustment; insert_mark = gtk_text_buffer_get_insert (get_buffer (text_view)); /* Make sure we start from the current cursor position, even * if it was offscreen, but don't queue more scrolls if we're * already behind. */ if (priv->pending_scroll) cancel_pending_scroll (text_view); else gtk_text_view_scroll_mark_onscreen (text_view, insert_mark); /* Validate the region that will be brought into view by the cursor motion */ gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &old_insert, insert_mark); if (count < 0) { gtk_text_view_get_first_para_iter (text_view, &anchor); y0 = gtk_adjustment_get_page_size (adjustment); y1 = gtk_adjustment_get_page_size (adjustment) + count * gtk_adjustment_get_page_increment (adjustment); } else { gtk_text_view_get_first_para_iter (text_view, &anchor); y0 = count * gtk_adjustment_get_page_increment (adjustment) + gtk_adjustment_get_page_size (adjustment); y1 = 0; } gtk_text_layout_validate_yrange (priv->layout, &anchor, y0, y1); /* FIXME do we need to update the adjustment ranges here? */ new_insert = old_insert; if (count < 0 && gtk_adjustment_get_value (adjustment) <= (gtk_adjustment_get_lower (adjustment) + 1e-12)) { /* already at top, just be sure we are at offset 0 */ gtk_text_buffer_get_start_iter (get_buffer (text_view), &new_insert); move_cursor (text_view, &new_insert, extend_selection); } else if (count > 0 && gtk_adjustment_get_value (adjustment) >= (gtk_adjustment_get_upper (adjustment) - gtk_adjustment_get_page_size (adjustment) - 1e-12)) { /* already at bottom, just be sure we are at the end */ gtk_text_buffer_get_end_iter (get_buffer (text_view), &new_insert); move_cursor (text_view, &new_insert, extend_selection); } else { gtk_text_view_get_virtual_cursor_pos (text_view, NULL, &cursor_x_pos, &cursor_y_pos); oldval = newval = gtk_adjustment_get_target_value (adjustment); newval += count * gtk_adjustment_get_page_increment (adjustment); gtk_adjustment_animate_to_value (adjustment, newval); cursor_y_pos += newval - oldval; gtk_text_layout_get_iter_at_pixel (priv->layout, &new_insert, cursor_x_pos, cursor_y_pos); move_cursor (text_view, &new_insert, extend_selection); gtk_text_view_set_virtual_cursor_pos (text_view, cursor_x_pos, cursor_y_pos); } /* Adjust to have the cursor _entirely_ onscreen, move_mark_onscreen * only guarantees 1 pixel onscreen. */ DV(g_print (G_STRLOC": scrolling onscreen\n")); return !gtk_text_iter_equal (&old_insert, &new_insert); } static gboolean gtk_text_view_scroll_hpages (GtkTextView *text_view, gint count, gboolean extend_selection) { GtkTextViewPrivate *priv; GtkAdjustment *adjustment; gint cursor_x_pos, cursor_y_pos; GtkTextMark *insert_mark; GtkTextIter old_insert; GtkTextIter new_insert; gdouble newval; gdouble oldval; gint y, height; priv = text_view->priv; g_return_val_if_fail (priv->hadjustment != NULL, FALSE); adjustment = priv->hadjustment; insert_mark = gtk_text_buffer_get_insert (get_buffer (text_view)); /* Make sure we start from the current cursor position, even * if it was offscreen, but don't queue more scrolls if we're * already behind. */ if (priv->pending_scroll) cancel_pending_scroll (text_view); else gtk_text_view_scroll_mark_onscreen (text_view, insert_mark); /* Validate the line that we're moving within. */ gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &old_insert, insert_mark); gtk_text_layout_get_line_yrange (priv->layout, &old_insert, &y, &height); gtk_text_layout_validate_yrange (priv->layout, &old_insert, y, y + height); /* FIXME do we need to update the adjustment ranges here? */ new_insert = old_insert; if (count < 0 && gtk_adjustment_get_value (adjustment) <= (gtk_adjustment_get_lower (adjustment) + 1e-12)) { /* already at far left, just be sure we are at offset 0 */ gtk_text_iter_set_line_offset (&new_insert, 0); move_cursor (text_view, &new_insert, extend_selection); } else if (count > 0 && gtk_adjustment_get_value (adjustment) >= (gtk_adjustment_get_upper (adjustment) - gtk_adjustment_get_page_size (adjustment) - 1e-12)) { /* already at far right, just be sure we are at the end */ if (!gtk_text_iter_ends_line (&new_insert)) gtk_text_iter_forward_to_line_end (&new_insert); move_cursor (text_view, &new_insert, extend_selection); } else { gtk_text_view_get_virtual_cursor_pos (text_view, NULL, &cursor_x_pos, &cursor_y_pos); oldval = newval = gtk_adjustment_get_target_value (adjustment); newval += count * gtk_adjustment_get_page_increment (adjustment); gtk_adjustment_animate_to_value (adjustment, newval); cursor_x_pos += newval - oldval; gtk_text_layout_get_iter_at_pixel (priv->layout, &new_insert, cursor_x_pos, cursor_y_pos); move_cursor (text_view, &new_insert, extend_selection); gtk_text_view_set_virtual_cursor_pos (text_view, cursor_x_pos, cursor_y_pos); } /* FIXME for lines shorter than the overall widget width, this results in a * "bounce" effect as we scroll to the right of the widget, then scroll * back to get the end of the line onscreen. * http://bugzilla.gnome.org/show_bug.cgi?id=68963 */ /* Adjust to have the cursor _entirely_ onscreen, move_mark_onscreen * only guarantees 1 pixel onscreen. */ DV(g_print (G_STRLOC": scrolling onscreen\n")); return !gtk_text_iter_equal (&old_insert, &new_insert); } static gboolean whitespace (gunichar ch, gpointer user_data) { return (ch == ' ' || ch == '\t'); } static gboolean not_whitespace (gunichar ch, gpointer user_data) { return !whitespace (ch, user_data); } static gboolean find_whitepace_region (const GtkTextIter *center, GtkTextIter *start, GtkTextIter *end) { *start = *center; *end = *center; if (gtk_text_iter_backward_find_char (start, not_whitespace, NULL, NULL)) gtk_text_iter_forward_char (start); /* we want the first whitespace... */ if (whitespace (gtk_text_iter_get_char (end), NULL)) gtk_text_iter_forward_find_char (end, not_whitespace, NULL, NULL); return !gtk_text_iter_equal (start, end); } static void gtk_text_view_insert_at_cursor (GtkTextView *text_view, const gchar *str) { if (!gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), str, -1, text_view->priv->editable)) { gtk_widget_error_bell (GTK_WIDGET (text_view)); } } static void gtk_text_view_delete_from_cursor (GtkTextView *text_view, GtkDeleteType type, gint count) { GtkTextViewPrivate *priv; GtkTextIter insert; GtkTextIter start; GtkTextIter end; gboolean leave_one = FALSE; priv = text_view->priv; gtk_text_view_reset_im_context (text_view); if (type == GTK_DELETE_CHARS) { /* Char delete deletes the selection, if one exists */ if (gtk_text_buffer_delete_selection (get_buffer (text_view), TRUE, priv->editable)) return; } gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert, gtk_text_buffer_get_insert (get_buffer (text_view))); start = insert; end = insert; switch (type) { case GTK_DELETE_CHARS: gtk_text_iter_forward_cursor_positions (&end, count); break; case GTK_DELETE_WORD_ENDS: if (count > 0) gtk_text_iter_forward_word_ends (&end, count); else if (count < 0) gtk_text_iter_backward_word_starts (&start, 0 - count); break; case GTK_DELETE_WORDS: break; case GTK_DELETE_DISPLAY_LINE_ENDS: break; case GTK_DELETE_DISPLAY_LINES: break; case GTK_DELETE_PARAGRAPH_ENDS: if (count > 0) { /* If we're already at a newline, we need to * simply delete that newline, instead of * moving to the next one. */ if (gtk_text_iter_ends_line (&end)) { gtk_text_iter_forward_line (&end); --count; } while (count > 0) { if (!gtk_text_iter_forward_to_line_end (&end)) break; --count; } } else if (count < 0) { if (gtk_text_iter_starts_line (&start)) { gtk_text_iter_backward_line (&start); if (!gtk_text_iter_ends_line (&end)) gtk_text_iter_forward_to_line_end (&start); } else { gtk_text_iter_set_line_offset (&start, 0); } ++count; gtk_text_iter_backward_lines (&start, -count); } break; case GTK_DELETE_PARAGRAPHS: if (count > 0) { gtk_text_iter_set_line_offset (&start, 0); gtk_text_iter_forward_to_line_end (&end); /* Do the lines beyond the first. */ while (count > 1) { gtk_text_iter_forward_to_line_end (&end); --count; } } /* FIXME negative count? */ break; case GTK_DELETE_WHITESPACE: { find_whitepace_region (&insert, &start, &end); } break; default: break; } if (!gtk_text_iter_equal (&start, &end)) { gtk_text_buffer_begin_user_action (get_buffer (text_view)); if (gtk_text_buffer_delete_interactive (get_buffer (text_view), &start, &end, priv->editable)) { if (leave_one) gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), " ", 1, priv->editable); } else { gtk_widget_error_bell (GTK_WIDGET (text_view)); } gtk_text_buffer_end_user_action (get_buffer (text_view)); gtk_text_view_set_virtual_cursor_pos (text_view, -1, -1); DV(g_print (G_STRLOC": scrolling onscreen\n")); gtk_text_view_scroll_mark_onscreen (text_view, gtk_text_buffer_get_insert (get_buffer (text_view))); } else { gtk_widget_error_bell (GTK_WIDGET (text_view)); } } static void gtk_text_view_backspace (GtkTextView *text_view) { GtkTextViewPrivate *priv; GtkTextIter insert; priv = text_view->priv; gtk_text_view_reset_im_context (text_view); /* Backspace deletes the selection, if one exists */ if (gtk_text_buffer_delete_selection (get_buffer (text_view), TRUE, priv->editable)) return; gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert, gtk_text_buffer_get_insert (get_buffer (text_view))); if (gtk_text_buffer_backspace (get_buffer (text_view), &insert, TRUE, priv->editable)) { gtk_text_view_set_virtual_cursor_pos (text_view, -1, -1); DV(g_print (G_STRLOC": scrolling onscreen\n")); gtk_text_view_scroll_mark_onscreen (text_view, gtk_text_buffer_get_insert (get_buffer (text_view))); } else { gtk_widget_error_bell (GTK_WIDGET (text_view)); } } static void gtk_text_view_cut_clipboard (GtkTextView *text_view) { GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view), GDK_SELECTION_CLIPBOARD); gtk_text_buffer_cut_clipboard (get_buffer (text_view), clipboard, text_view->priv->editable); DV(g_print (G_STRLOC": scrolling onscreen\n")); gtk_text_view_scroll_mark_onscreen (text_view, gtk_text_buffer_get_insert (get_buffer (text_view))); gtk_text_view_selection_bubble_popup_unset (text_view); } static void gtk_text_view_copy_clipboard (GtkTextView *text_view) { GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view), GDK_SELECTION_CLIPBOARD); gtk_text_buffer_copy_clipboard (get_buffer (text_view), clipboard); /* on copy do not scroll, we are already onscreen */ } static void gtk_text_view_paste_clipboard (GtkTextView *text_view) { GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view), GDK_SELECTION_CLIPBOARD); gtk_text_buffer_paste_clipboard (get_buffer (text_view), clipboard, NULL, text_view->priv->editable); } static void gtk_text_view_paste_done_handler (GtkTextBuffer *buffer, GtkClipboard *clipboard, gpointer data) { GtkTextView *text_view = data; GtkTextViewPrivate *priv; priv = text_view->priv; if (priv->scroll_after_paste) { DV(g_print (G_STRLOC": scrolling onscreen\n")); gtk_text_view_scroll_mark_onscreen (text_view, gtk_text_buffer_get_insert (buffer)); } priv->scroll_after_paste = TRUE; } static void gtk_text_view_buffer_changed_handler (GtkTextBuffer *buffer, gpointer data) { GtkTextView *text_view = data; GtkTextViewPrivate *priv = text_view->priv; if (priv->handling_key_event) gtk_text_view_obscure_mouse_cursor (text_view); if (priv->text_handle) gtk_text_view_update_handles (text_view, _gtk_text_handle_get_mode (priv->text_handle)); } static void gtk_text_view_toggle_overwrite (GtkTextView *text_view) { GtkTextViewPrivate *priv = text_view->priv; if (priv->text_window) text_window_invalidate_cursors (priv->text_window); priv->overwrite_mode = !priv->overwrite_mode; if (priv->layout) gtk_text_layout_set_overwrite_mode (priv->layout, priv->overwrite_mode && priv->editable); if (priv->text_window) text_window_invalidate_cursors (priv->text_window); gtk_text_view_pend_cursor_blink (text_view); g_object_notify (G_OBJECT (text_view), "overwrite"); } /** * gtk_text_view_get_overwrite: * @text_view: a #GtkTextView * * Returns whether the #GtkTextView is in overwrite mode or not. * * Returns: whether @text_view is in overwrite mode or not. * * Since: 2.4 **/ gboolean gtk_text_view_get_overwrite (GtkTextView *text_view) { g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE); return text_view->priv->overwrite_mode; } /** * gtk_text_view_set_overwrite: * @text_view: a #GtkTextView * @overwrite: %TRUE to turn on overwrite mode, %FALSE to turn it off * * Changes the #GtkTextView overwrite mode. * * Since: 2.4 **/ void gtk_text_view_set_overwrite (GtkTextView *text_view, gboolean overwrite) { g_return_if_fail (GTK_IS_TEXT_VIEW (text_view)); overwrite = overwrite != FALSE; if (text_view->priv->overwrite_mode != overwrite) gtk_text_view_toggle_overwrite (text_view); } /** * gtk_text_view_set_accepts_tab: * @text_view: A #GtkTextView * @accepts_tab: %TRUE if pressing the Tab key should insert a tab * character, %FALSE, if pressing the Tab key should move the * keyboard focus. * * Sets the behavior of the text widget when the Tab key is pressed. * If @accepts_tab is %TRUE, a tab character is inserted. If @accepts_tab * is %FALSE the keyboard focus is moved to the next widget in the focus * chain. * * Since: 2.4 **/ void gtk_text_view_set_accepts_tab (GtkTextView *text_view, gboolean accepts_tab) { g_return_if_fail (GTK_IS_TEXT_VIEW (text_view)); accepts_tab = accepts_tab != FALSE; if (text_view->priv->accepts_tab != accepts_tab) { text_view->priv->accepts_tab = accepts_tab; g_object_notify (G_OBJECT (text_view), "accepts-tab"); } } /** * gtk_text_view_get_accepts_tab: * @text_view: A #GtkTextView * * Returns whether pressing the Tab key inserts a tab characters. * gtk_text_view_set_accepts_tab(). * * Returns: %TRUE if pressing the Tab key inserts a tab character, * %FALSE if pressing the Tab key moves the keyboard focus. * * Since: 2.4 **/ gboolean gtk_text_view_get_accepts_tab (GtkTextView *text_view) { g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE); return text_view->priv->accepts_tab; } /* * Selections */ static void gtk_text_view_unselect (GtkTextView *text_view) { GtkTextIter insert; gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert, gtk_text_buffer_get_insert (get_buffer (text_view))); gtk_text_buffer_move_mark (get_buffer (text_view), gtk_text_buffer_get_selection_bound (get_buffer (text_view)), &insert); } static void move_mark_to_pointer_and_scroll (GtkTextView *text_view, const gchar *mark_name) { GtkTextIter newplace; GtkTextBuffer *buffer; GtkTextMark *mark; buffer = get_buffer (text_view); get_iter_from_gesture (text_view, text_view->priv->drag_gesture, &newplace, NULL, NULL); mark = gtk_text_buffer_get_mark (buffer, mark_name); /* This may invalidate the layout */ DV(g_print (G_STRLOC": move mark\n")); gtk_text_buffer_move_mark (buffer, mark, &newplace); DV(g_print (G_STRLOC": scrolling onscreen\n")); gtk_text_view_scroll_mark_onscreen (text_view, mark); DV (g_print ("first validate idle leaving %s is %d\n", G_STRLOC, text_view->priv->first_validate_idle)); } static gboolean selection_scan_timeout (gpointer data) { GtkTextView *text_view; text_view = GTK_TEXT_VIEW (data); gtk_text_view_scroll_mark_onscreen (text_view, gtk_text_buffer_get_insert (get_buffer (text_view))); return TRUE; /* remain installed. */ } #define UPPER_OFFSET_ANCHOR 0.8 #define LOWER_OFFSET_ANCHOR 0.2 static gboolean check_scroll (gdouble offset, GtkAdjustment *adjustment) { if ((offset > UPPER_OFFSET_ANCHOR && gtk_adjustment_get_value (adjustment) + gtk_adjustment_get_page_size (adjustment) < gtk_adjustment_get_upper (adjustment)) || (offset < LOWER_OFFSET_ANCHOR && gtk_adjustment_get_value (adjustment) > gtk_adjustment_get_lower (adjustment))) return TRUE; return FALSE; } static gint drag_scan_timeout (gpointer data) { GtkTextView *text_view; GtkTextViewPrivate *priv; GtkTextIter newplace; gdouble pointer_xoffset, pointer_yoffset; text_view = GTK_TEXT_VIEW (data); priv = text_view->priv; gtk_text_layout_get_iter_at_pixel (priv->layout, &newplace, priv->dnd_x + priv->xoffset, priv->dnd_y + priv->yoffset); gtk_text_buffer_move_mark (get_buffer (text_view), priv->dnd_mark, &newplace); pointer_xoffset = (gdouble) priv->dnd_x / gdk_window_get_width (priv->text_window->bin_window); pointer_yoffset = (gdouble) priv->dnd_y / gdk_window_get_height (priv->text_window->bin_window); if (check_scroll (pointer_xoffset, priv->hadjustment) || check_scroll (pointer_yoffset, priv->vadjustment)) { /* do not make offsets surpass lower nor upper anchors, this makes * scrolling speed relative to the distance of the pointer to the * anchors when it moves beyond them. */ pointer_xoffset = CLAMP (pointer_xoffset, LOWER_OFFSET_ANCHOR, UPPER_OFFSET_ANCHOR); pointer_yoffset = CLAMP (pointer_yoffset, LOWER_OFFSET_ANCHOR, UPPER_OFFSET_ANCHOR); gtk_text_view_scroll_to_mark (text_view, priv->dnd_mark, 0., TRUE, pointer_xoffset, pointer_yoffset); } return TRUE; } static void extend_selection (GtkTextView *text_view, SelectionGranularity granularity, const GtkTextIter *location, GtkTextIter *start, GtkTextIter *end) { GtkTextExtendSelection extend_selection_granularity; gboolean handled = FALSE; switch (granularity) { case SELECT_CHARACTERS: *start = *location; *end = *location; return; case SELECT_WORDS: extend_selection_granularity = GTK_TEXT_EXTEND_SELECTION_WORD; break; case SELECT_LINES: extend_selection_granularity = GTK_TEXT_EXTEND_SELECTION_LINE; break; default: g_assert_not_reached (); } g_signal_emit (text_view, signals[EXTEND_SELECTION], 0, extend_selection_granularity, location, start, end, &handled); if (!handled) { *start = *location; *end = *location; } } static gboolean gtk_text_view_extend_selection (GtkTextView *text_view, GtkTextExtendSelection granularity, const GtkTextIter *location, GtkTextIter *start, GtkTextIter *end) { *start = *location; *end = *location; switch (granularity) { case GTK_TEXT_EXTEND_SELECTION_WORD: if (gtk_text_iter_inside_word (start)) { if (!gtk_text_iter_starts_word (start)) gtk_text_iter_backward_visible_word_start (start); if (!gtk_text_iter_ends_word (end)) { if (!gtk_text_iter_forward_visible_word_end (end)) gtk_text_iter_forward_to_end (end); } } else { GtkTextIter tmp; /* @start is not contained in a word: the selection is extended to all * the white spaces between the end of the word preceding @start and * the start of the one following. */ tmp = *start; if (gtk_text_iter_backward_visible_word_start (&tmp)) gtk_text_iter_forward_visible_word_end (&tmp); if (gtk_text_iter_get_line (&tmp) == gtk_text_iter_get_line (start)) *start = tmp; else gtk_text_iter_set_line_offset (start, 0); tmp = *end; if (!gtk_text_iter_forward_visible_word_end (&tmp)) gtk_text_iter_forward_to_end (&tmp); if (gtk_text_iter_ends_word (&tmp)) gtk_text_iter_backward_visible_word_start (&tmp); if (gtk_text_iter_get_line (&tmp) == gtk_text_iter_get_line (end)) *end = tmp; else gtk_text_iter_forward_to_line_end (end); } break; case GTK_TEXT_EXTEND_SELECTION_LINE: if (gtk_text_view_starts_display_line (text_view, start)) { /* If on a display line boundary, we assume the user * clicked off the end of a line and we therefore select * the line before the boundary. */ gtk_text_view_backward_display_line_start (text_view, start); } else { /* start isn't on the start of a line, so we move it to the * start, and move end to the end unless it's already there. */ gtk_text_view_backward_display_line_start (text_view, start); if (!gtk_text_view_starts_display_line (text_view, end)) gtk_text_view_forward_display_line_end (text_view, end); } break; default: g_return_val_if_reached (GDK_EVENT_STOP); } return GDK_EVENT_STOP; } typedef struct { SelectionGranularity granularity; GtkTextMark *orig_start; GtkTextMark *orig_end; } SelectionData; static void selection_data_free (SelectionData *data) { if (data->orig_start != NULL) gtk_text_buffer_delete_mark (gtk_text_mark_get_buffer (data->orig_start), data->orig_start); if (data->orig_end != NULL) gtk_text_buffer_delete_mark (gtk_text_mark_get_buffer (data->orig_end), data->orig_end); g_slice_free (SelectionData, data); } static gboolean drag_gesture_get_text_window_coords (GtkGestureDrag *gesture, GtkTextView *text_view, gint *start_x, gint *start_y, gint *x, gint *y) { gdouble sx, sy, ox, oy; if (!gtk_gesture_drag_get_start_point (gesture, &sx, &sy) || !gtk_gesture_drag_get_offset (gesture, &ox, &oy)) return FALSE; *start_x = sx; *start_y = sy; _widget_to_text_window_coords (text_view, start_x, start_y); *x = sx + ox; *y = sy + oy; _widget_to_text_window_coords (text_view, x, y); return TRUE; } static void gtk_text_view_drag_gesture_update (GtkGestureDrag *gesture, gdouble offset_x, gdouble offset_y, GtkTextView *text_view) { gint start_x, start_y, x, y; GdkEventSequence *sequence; gboolean is_touchscreen; const GdkEvent *event; SelectionData *data; GdkDevice *device; GtkTextIter cursor; data = g_object_get_qdata (G_OBJECT (gesture), quark_text_selection_data); sequence = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture)); event = gtk_gesture_get_last_event (GTK_GESTURE (gesture), sequence); drag_gesture_get_text_window_coords (gesture, text_view, &start_x, &start_y, &x, &y); device = gdk_event_get_source_device (event); is_touchscreen = gtk_simulate_touchscreen () || gdk_device_get_source (device) == GDK_SOURCE_TOUCHSCREEN; get_iter_from_gesture (text_view, text_view->priv->drag_gesture, &cursor, NULL, NULL); if (!data) { /* If no data is attached, the initial press happened within the current * text selection, check for drag and drop to be initiated. */ if (gtk_drag_check_threshold (GTK_WIDGET (text_view), start_x, start_y, x, y)) { if (!is_touchscreen) { GtkTextIter iter; gint buffer_x, buffer_y; gtk_text_view_window_to_buffer_coords (text_view, GTK_TEXT_WINDOW_TEXT, start_x, start_y, &buffer_x, &buffer_y); gtk_text_layout_get_iter_at_pixel (text_view->priv->layout, &iter, buffer_x, buffer_y); gtk_text_view_start_selection_dnd (text_view, &iter, event, start_x, start_y); return; } else { gtk_text_view_start_selection_drag (text_view, &cursor, SELECT_WORDS, TRUE); data = g_object_get_qdata (G_OBJECT (gesture), quark_text_selection_data); } } else return; } /* Text selection */ if (data->granularity == SELECT_CHARACTERS) { move_mark_to_pointer_and_scroll (text_view, "insert"); } else { GtkTextIter start, end; GtkTextIter orig_start, orig_end; GtkTextBuffer *buffer; buffer = get_buffer (text_view); gtk_text_buffer_get_iter_at_mark (buffer, &orig_start, data->orig_start); gtk_text_buffer_get_iter_at_mark (buffer, &orig_end, data->orig_end); get_iter_from_gesture (text_view, text_view->priv->drag_gesture, &cursor, NULL, NULL); extend_selection (text_view, data->granularity, &cursor, &start, &end); /* either the selection extends to the front, or end (or not) */ if (gtk_text_iter_compare (&orig_start, &start) < 0) start = orig_start; if (gtk_text_iter_compare (&orig_end, &end) > 0) end = orig_end; gtk_text_buffer_select_range (buffer, &start, &end); gtk_text_view_scroll_mark_onscreen (text_view, gtk_text_buffer_get_insert (buffer)); } /* If we had to scroll offscreen, insert a timeout to do so * again. Note that in the timeout, even if the mouse doesn't * move, due to this scroll xoffset/yoffset will have changed * and we'll need to scroll again. */ if (text_view->priv->scroll_timeout != 0) /* reset on every motion event */ g_source_remove (text_view->priv->scroll_timeout); text_view->priv->scroll_timeout = gdk_threads_add_timeout (50, selection_scan_timeout, text_view); g_source_set_name_by_id (text_view->priv->scroll_timeout, "[gtk+] selection_scan_timeout"); gtk_text_view_selection_bubble_popup_unset (text_view); if (is_touchscreen) { _gtk_text_view_ensure_text_handles (text_view); gtk_text_view_update_handles (text_view, GTK_TEXT_HANDLE_MODE_SELECTION); gtk_text_view_show_magnifier (text_view, &cursor, x, y); } } static void gtk_text_view_drag_gesture_end (GtkGestureDrag *gesture, gdouble offset_x, gdouble offset_y, GtkTextView *text_view) { gboolean is_touchscreen, clicked_in_selection; gint start_x, start_y, x, y; GdkEventSequence *sequence; GtkTextViewPrivate *priv; const GdkEvent *event; GdkDevice *device; priv = text_view->priv; sequence = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture)); drag_gesture_get_text_window_coords (gesture, text_view, &start_x, &start_y, &x, &y); clicked_in_selection = g_object_get_qdata (G_OBJECT (gesture), quark_text_selection_data) == NULL; g_object_set_qdata (G_OBJECT (gesture), quark_text_selection_data, NULL); gtk_text_view_unobscure_mouse_cursor (text_view); if (priv->scroll_timeout != 0) { g_source_remove (priv->scroll_timeout); priv->scroll_timeout = 0; } if (priv->magnifier_popover) gtk_widget_hide (priv->magnifier_popover); /* Check whether the drag was cancelled rather than finished */ if (!gtk_gesture_handles_sequence (GTK_GESTURE (gesture), sequence)) return; event = gtk_gesture_get_last_event (GTK_GESTURE (gesture), sequence); device = gdk_event_get_source_device (event); is_touchscreen = gtk_simulate_touchscreen () || gdk_device_get_source (device) == GDK_SOURCE_TOUCHSCREEN; if (!is_touchscreen && clicked_in_selection && !gtk_drag_check_threshold (GTK_WIDGET (text_view), start_x, start_y, x, y)) { GtkTextHandleMode mode = GTK_TEXT_HANDLE_MODE_NONE; GtkTextIter iter; /* Unselect everything; we clicked inside selection, but * didn't move by the drag threshold, so just clear selection * and place cursor. */ gtk_text_layout_get_iter_at_pixel (priv->layout, &iter, x + priv->xoffset, y + priv->yoffset); gtk_text_buffer_place_cursor (get_buffer (text_view), &iter); gtk_text_view_check_cursor_blink (text_view); if (priv->text_handle) { if (is_touchscreen) mode = GTK_TEXT_HANDLE_MODE_CURSOR; gtk_text_view_update_handles (text_view, mode); } } } static void gtk_text_view_start_selection_drag (GtkTextView *text_view, const GtkTextIter *iter, SelectionGranularity granularity, gboolean extend) { GtkTextViewPrivate *priv; GtkTextIter cursor, ins, bound; GtkTextIter orig_start, orig_end; GtkTextBuffer *buffer; SelectionData *data; priv = text_view->priv; data = g_slice_new0 (SelectionData); data->granularity = granularity; buffer = get_buffer (text_view); cursor = *iter; extend_selection (text_view, data->granularity, &cursor, &ins, &bound); orig_start = ins; orig_end = bound; if (extend) { /* Extend selection */ GtkTextIter old_ins, old_bound; GtkTextIter old_start, old_end; gtk_text_buffer_get_iter_at_mark (buffer, &old_ins, gtk_text_buffer_get_insert (buffer)); gtk_text_buffer_get_iter_at_mark (buffer, &old_bound, gtk_text_buffer_get_selection_bound (buffer)); old_start = old_ins; old_end = old_bound; gtk_text_iter_order (&old_start, &old_end); /* move the front cursor, if the mouse is in front of the selection. Should the * cursor however be inside the selection (this happens on tripple click) then we * move the side which was last moved (current insert mark) */ if (gtk_text_iter_compare (&cursor, &old_start) <= 0 || (gtk_text_iter_compare (&cursor, &old_end) < 0 && gtk_text_iter_compare (&old_ins, &old_bound) <= 0)) { bound = old_end; } else { ins = bound; bound = old_start; } /* Store any previous selection */ if (gtk_text_iter_compare (&old_start, &old_end) != 0) { orig_start = old_ins; orig_end = old_bound; } } gtk_text_buffer_select_range (buffer, &ins, &bound); gtk_text_iter_order (&orig_start, &orig_end); data->orig_start = gtk_text_buffer_create_mark (buffer, NULL, &orig_start, TRUE); data->orig_end = gtk_text_buffer_create_mark (buffer, NULL, &orig_end, TRUE); gtk_text_view_check_cursor_blink (text_view); g_object_set_qdata_full (G_OBJECT (priv->drag_gesture), quark_text_selection_data, data, (GDestroyNotify) selection_data_free); gtk_gesture_set_state (priv->drag_gesture, GTK_EVENT_SEQUENCE_CLAIMED); } /* returns whether we were really dragging */ static gboolean gtk_text_view_end_selection_drag (GtkTextView *text_view) { GtkTextViewPrivate *priv; priv = text_view->priv; if (!gtk_gesture_is_active (priv->drag_gesture)) return FALSE; if (priv->scroll_timeout != 0) { g_source_remove (priv->scroll_timeout); priv->scroll_timeout = 0; } if (priv->magnifier_popover) gtk_widget_hide (priv->magnifier_popover); return TRUE; } /* * Layout utils */ static void gtk_text_view_set_attributes_from_style (GtkTextView *text_view, GtkTextAttributes *values) { GtkStyleContext *context; GdkRGBA bg_color, fg_color; GtkStateFlags state; context = gtk_widget_get_style_context (GTK_WIDGET (text_view)); state = gtk_style_context_get_state (context); G_GNUC_BEGIN_IGNORE_DEPRECATIONS gtk_style_context_get_background_color (context, state, &bg_color); G_GNUC_END_IGNORE_DEPRECATIONS gtk_style_context_get_color (context, state, &fg_color); values->appearance.bg_color.red = CLAMP (bg_color.red * 65535. + 0.5, 0, 65535); values->appearance.bg_color.green = CLAMP (bg_color.green * 65535. + 0.5, 0, 65535); values->appearance.bg_color.blue = CLAMP (bg_color.blue * 65535. + 0.5, 0, 65535); values->appearance.fg_color.red = CLAMP (fg_color.red * 65535. + 0.5, 0, 65535); values->appearance.fg_color.green = CLAMP (fg_color.green * 65535. + 0.5, 0, 65535); values->appearance.fg_color.blue = CLAMP (fg_color.blue * 65535. + 0.5, 0, 65535); if (values->font) pango_font_description_free (values->font); gtk_style_context_get (context, state, "font", &values->font, NULL); } static void gtk_text_view_check_keymap_direction (GtkTextView *text_view) { GtkTextViewPrivate *priv = text_view->priv; if (priv->layout) { GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (text_view)); GdkKeymap *keymap = gdk_keymap_get_for_display (gtk_widget_get_display (GTK_WIDGET (text_view))); GtkTextDirection new_cursor_dir; GtkTextDirection new_keyboard_dir; gboolean split_cursor; g_object_get (settings, "gtk-split-cursor", &split_cursor, NULL); if (gdk_keymap_get_direction (keymap) == PANGO_DIRECTION_RTL) new_keyboard_dir = GTK_TEXT_DIR_RTL; else new_keyboard_dir = GTK_TEXT_DIR_LTR; if (split_cursor) new_cursor_dir = GTK_TEXT_DIR_NONE; else new_cursor_dir = new_keyboard_dir; gtk_text_layout_set_cursor_direction (priv->layout, new_cursor_dir); gtk_text_layout_set_keyboard_direction (priv->layout, new_keyboard_dir); } } static void gtk_text_view_ensure_layout (GtkTextView *text_view) { GtkWidget *widget; GtkTextViewPrivate *priv; widget = GTK_WIDGET (text_view); priv = text_view->priv; if (priv->layout == NULL) { GtkTextAttributes *style; PangoContext *ltr_context, *rtl_context; GSList *tmp_list; DV(g_print(G_STRLOC"\n")); priv->layout = gtk_text_layout_new (); g_signal_connect (priv->layout, "invalidated", G_CALLBACK (invalidated_handler), text_view); g_signal_connect (priv->layout, "changed", G_CALLBACK (changed_handler), text_view); g_signal_connect (priv->layout, "allocate-child", G_CALLBACK (gtk_text_view_child_allocated), text_view); if (get_buffer (text_view)) gtk_text_layout_set_buffer (priv->layout, get_buffer (text_view)); if ((gtk_widget_has_focus (widget) && cursor_visible (text_view))) gtk_text_view_pend_cursor_blink (text_view); else gtk_text_layout_set_cursor_visible (priv->layout, FALSE); gtk_text_layout_set_overwrite_mode (priv->layout, priv->overwrite_mode && priv->editable); ltr_context = gtk_widget_create_pango_context (GTK_WIDGET (text_view)); pango_context_set_base_dir (ltr_context, PANGO_DIRECTION_LTR); rtl_context = gtk_widget_create_pango_context (GTK_WIDGET (text_view)); pango_context_set_base_dir (rtl_context, PANGO_DIRECTION_RTL); gtk_text_layout_set_contexts (priv->layout, ltr_context, rtl_context); g_object_unref (ltr_context); g_object_unref (rtl_context); gtk_text_view_check_keymap_direction (text_view); style = gtk_text_attributes_new (); gtk_text_view_set_attributes_from_style (text_view, style); style->pixels_above_lines = priv->pixels_above_lines; style->pixels_below_lines = priv->pixels_below_lines; style->pixels_inside_wrap = priv->pixels_inside_wrap; style->left_margin = priv->left_margin; style->right_margin = priv->right_margin; priv->layout->right_padding = priv->right_padding; priv->layout->left_padding = priv->left_padding; style->indent = priv->indent; style->tabs = priv->tabs ? pango_tab_array_copy (priv->tabs) : NULL; style->wrap_mode = priv->wrap_mode; style->justification = priv->justify; style->direction = gtk_widget_get_direction (GTK_WIDGET (text_view)); gtk_text_layout_set_default_style (priv->layout, style); gtk_text_attributes_unref (style); /* Set layout for all anchored children */ tmp_list = priv->children; while (tmp_list != NULL) { GtkTextViewChild *vc = tmp_list->data; if (vc->anchor) { gtk_text_anchored_child_set_layout (vc->widget, priv->layout); /* vc may now be invalid! */ } tmp_list = tmp_list->next; } } } /** * gtk_text_view_get_default_attributes: * @text_view: a #GtkTextView * * Obtains a copy of the default text attributes. These are the * attributes used for text unless a tag overrides them. * You’d typically pass the default attributes in to * gtk_text_iter_get_attributes() in order to get the * attributes in effect at a given text position. * * The return value is a copy owned by the caller of this function, * and should be freed with gtk_text_attributes_unref(). * * Returns: a new #GtkTextAttributes **/ GtkTextAttributes* gtk_text_view_get_default_attributes (GtkTextView *text_view) { g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL); gtk_text_view_ensure_layout (text_view); return gtk_text_attributes_copy (text_view->priv->layout->default_style); } static void gtk_text_view_destroy_layout (GtkTextView *text_view) { GtkTextViewPrivate *priv = text_view->priv; if (priv->layout) { GSList *tmp_list; gtk_text_view_remove_validate_idles (text_view); g_signal_handlers_disconnect_by_func (priv->layout, invalidated_handler, text_view); g_signal_handlers_disconnect_by_func (priv->layout, changed_handler, text_view); /* Remove layout from all anchored children */ tmp_list = priv->children; while (tmp_list != NULL) { GtkTextViewChild *vc = tmp_list->data; if (vc->anchor) { gtk_text_anchored_child_set_layout (vc->widget, NULL); /* vc may now be invalid! */ } tmp_list = tmp_list->next; } gtk_text_view_stop_cursor_blink (text_view); gtk_text_view_end_selection_drag (text_view); g_object_unref (priv->layout); priv->layout = NULL; } } /** * gtk_text_view_reset_im_context: * @text_view: a #GtkTextView * * Reset the input method context of the text view if needed. * * This can be necessary in the case where modifying the buffer * would confuse on-going input method behavior. * * Since: 2.22 */ void gtk_text_view_reset_im_context (GtkTextView *text_view) { g_return_if_fail (GTK_IS_TEXT_VIEW (text_view)); if (text_view->priv->need_im_reset) { text_view->priv->need_im_reset = FALSE; gtk_im_context_reset (text_view->priv->im_context); } } /** * gtk_text_view_im_context_filter_keypress: * @text_view: a #GtkTextView * @event: the key event * * Allow the #GtkTextView input method to internally handle key press * and release events. If this function returns %TRUE, then no further * processing should be done for this key event. See * gtk_im_context_filter_keypress(). * * Note that you are expected to call this function from your handler * when overriding key event handling. This is needed in the case when * you need to insert your own key handling between the input method * and the default key event handling of the #GtkTextView. * * |[ * static gboolean * gtk_foo_bar_key_press_event (GtkWidget *widget, * GdkEventKey *event) * { * if ((key->keyval == GDK_KEY_Return || key->keyval == GDK_KEY_KP_Enter)) * { * if (gtk_text_view_im_context_filter_keypress (GTK_TEXT_VIEW (view), event)) * return TRUE; * } * * // Do some stuff * * return GTK_WIDGET_CLASS (gtk_foo_bar_parent_class)->key_press_event (widget, event); * } * ]| * * Returns: %TRUE if the input method handled the key event. * * Since: 2.22 */ gboolean gtk_text_view_im_context_filter_keypress (GtkTextView *text_view, GdkEventKey *event) { g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE); return gtk_im_context_filter_keypress (text_view->priv->im_context, event); } /* * DND feature */ static void drag_begin_cb (GtkWidget *widget, GdkDragContext *context, gpointer data) { GtkTextView *text_view = GTK_TEXT_VIEW (widget); GtkTextBuffer *buffer = gtk_text_view_get_buffer (text_view); GtkTextIter start; GtkTextIter end; cairo_surface_t *surface = NULL; g_signal_handlers_disconnect_by_func (widget, drag_begin_cb, NULL); if (gtk_text_buffer_get_selection_bounds (buffer, &start, &end)) surface = _gtk_text_util_create_rich_drag_icon (widget, buffer, &start, &end); if (surface) { gtk_drag_set_icon_surface (context, surface); cairo_surface_destroy (surface); } else { gtk_drag_set_icon_default (context); } } static void gtk_text_view_start_selection_dnd (GtkTextView *text_view, const GtkTextIter *iter, const GdkEvent *event, gint x, gint y) { GtkTargetList *target_list; target_list = gtk_text_buffer_get_copy_target_list (get_buffer (text_view)); g_signal_connect (text_view, "drag-begin", G_CALLBACK (drag_begin_cb), NULL); gtk_drag_begin_with_coordinates (GTK_WIDGET (text_view), target_list, GDK_ACTION_COPY | GDK_ACTION_MOVE, 1, (GdkEvent*) event, x, y); } static void gtk_text_view_drag_begin (GtkWidget *widget, GdkDragContext *context) { /* do nothing */ } static void gtk_text_view_drag_end (GtkWidget *widget, GdkDragContext *context) { GtkTextView *text_view; text_view = GTK_TEXT_VIEW (widget); text_view->priv->dnd_x = text_view->priv->dnd_y = -1; } static void gtk_text_view_drag_data_get (GtkWidget *widget, GdkDragContext *context, GtkSelectionData *selection_data, guint info, guint time) { GtkTextView *text_view = GTK_TEXT_VIEW (widget); GtkTextBuffer *buffer = gtk_text_view_get_buffer (text_view); if (info == GTK_TEXT_BUFFER_TARGET_INFO_BUFFER_CONTENTS) { gtk_selection_data_set (selection_data, gdk_atom_intern_static_string ("GTK_TEXT_BUFFER_CONTENTS"), 8, /* bytes */ (void*)&buffer, sizeof (buffer)); } else if (info == GTK_TEXT_BUFFER_TARGET_INFO_RICH_TEXT) { GtkTextIter start; GtkTextIter end; guint8 *str = NULL; gsize len; if (gtk_text_buffer_get_selection_bounds (buffer, &start, &end)) { /* Extract the selected text */ str = gtk_text_buffer_serialize (buffer, buffer, gtk_selection_data_get_target (selection_data), &start, &end, &len); } if (str) { gtk_selection_data_set (selection_data, gtk_selection_data_get_target (selection_data), 8, /* bytes */ (guchar *) str, len); g_free (str); } } else { GtkTextIter start; GtkTextIter end; gchar *str = NULL; if (gtk_text_buffer_get_selection_bounds (buffer, &start, &end)) { /* Extract the selected text */ str = gtk_text_iter_get_visible_text (&start, &end); } if (str) { gtk_selection_data_set_text (selection_data, str, -1); g_free (str); } } } static void gtk_text_view_drag_data_delete (GtkWidget *widget, GdkDragContext *context) { gtk_text_buffer_delete_selection (GTK_TEXT_VIEW (widget)->priv->buffer, TRUE, GTK_TEXT_VIEW (widget)->priv->editable); } static void gtk_text_view_drag_leave (GtkWidget *widget, GdkDragContext *context, guint time) { GtkTextView *text_view; GtkTextViewPrivate *priv; text_view = GTK_TEXT_VIEW (widget); priv = text_view->priv; gtk_text_mark_set_visible (priv->dnd_mark, FALSE); priv->dnd_x = priv->dnd_y = -1; if (priv->scroll_timeout != 0) g_source_remove (priv->scroll_timeout); priv->scroll_timeout = 0; gtk_drag_unhighlight (widget); } static gboolean gtk_text_view_drag_motion (GtkWidget *widget, GdkDragContext *context, gint x, gint y, guint time) { GtkTextIter newplace; GtkTextView *text_view; GtkTextViewPrivate *priv; GtkTextIter start; GtkTextIter end; GdkRectangle target_rect; gint bx, by; GdkAtom target; GdkDragAction suggested_action = 0; text_view = GTK_TEXT_VIEW (widget); priv = text_view->priv; target_rect = priv->text_window->allocation; if (x < target_rect.x || y < target_rect.y || x > (target_rect.x + target_rect.width) || y > (target_rect.y + target_rect.height)) return FALSE; /* outside the text window, allow parent widgets to handle event */ gtk_text_view_window_to_buffer_coords (text_view, GTK_TEXT_WINDOW_WIDGET, x, y, &bx, &by); gtk_text_layout_get_iter_at_pixel (priv->layout, &newplace, bx, by); target = gtk_drag_dest_find_target (widget, context, gtk_drag_dest_get_target_list (widget)); if (target == GDK_NONE) { /* can't accept any of the offered targets */ } else if (gtk_text_buffer_get_selection_bounds (get_buffer (text_view), &start, &end) && gtk_text_iter_compare (&newplace, &start) >= 0 && gtk_text_iter_compare (&newplace, &end) <= 0) { /* We're inside the selection. */ } else { if (gtk_text_iter_can_insert (&newplace, priv->editable)) { GtkWidget *source_widget; suggested_action = gdk_drag_context_get_suggested_action (context); source_widget = gtk_drag_get_source_widget (context); if (source_widget == widget) { /* Default to MOVE, unless the user has * pressed ctrl or alt to affect available actions */ if ((gdk_drag_context_get_actions (context) & GDK_ACTION_MOVE) != 0) suggested_action = GDK_ACTION_MOVE; } } else { /* Can't drop here. */ } } if (suggested_action != 0) { gtk_text_mark_set_visible (priv->dnd_mark, cursor_visible (text_view)); gdk_drag_status (context, suggested_action, time); } else { gdk_drag_status (context, 0, time); gtk_text_mark_set_visible (priv->dnd_mark, FALSE); } /* DnD uses text window coords, so subtract extra widget * coords that happen e.g. when displaying line numbers. */ priv->dnd_x = x - target_rect.x; priv->dnd_y = y - target_rect.y; if (!priv->scroll_timeout) { priv->scroll_timeout = gdk_threads_add_timeout (100, drag_scan_timeout, text_view); g_source_set_name_by_id (text_view->priv->scroll_timeout, "[gtk+] drag_scan_timeout"); } gtk_drag_highlight (widget); /* TRUE return means don't propagate the drag motion to parent * widgets that may also be drop sites. */ return TRUE; } static gboolean gtk_text_view_drag_drop (GtkWidget *widget, GdkDragContext *context, gint x, gint y, guint time) { GtkTextView *text_view; GtkTextViewPrivate *priv; GtkTextIter drop_point; GdkAtom target = GDK_NONE; text_view = GTK_TEXT_VIEW (widget); priv = text_view->priv; if (priv->scroll_timeout != 0) g_source_remove (priv->scroll_timeout); priv->scroll_timeout = 0; gtk_text_mark_set_visible (priv->dnd_mark, FALSE); gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &drop_point, priv->dnd_mark); if (gtk_text_iter_can_insert (&drop_point, priv->editable)) target = gtk_drag_dest_find_target (widget, context, NULL); if (target != GDK_NONE) gtk_drag_get_data (widget, context, target, time); else gtk_drag_finish (context, FALSE, FALSE, time); return TRUE; } static void insert_text_data (GtkTextView *text_view, GtkTextIter *drop_point, GtkSelectionData *selection_data) { guchar *str; str = gtk_selection_data_get_text (selection_data); if (str) { if (!gtk_text_buffer_insert_interactive (get_buffer (text_view), drop_point, (gchar *) str, -1, text_view->priv->editable)) { gtk_widget_error_bell (GTK_WIDGET (text_view)); } g_free (str); } } static void gtk_text_view_drag_data_received (GtkWidget *widget, GdkDragContext *context, gint x, gint y, GtkSelectionData *selection_data, guint info, guint time) { GtkTextIter drop_point; GtkTextView *text_view; GtkTextViewPrivate *priv; gboolean success = FALSE; GtkTextBuffer *buffer = NULL; text_view = GTK_TEXT_VIEW (widget); priv = text_view->priv; if (!priv->dnd_mark) goto done; buffer = get_buffer (text_view); gtk_text_buffer_get_iter_at_mark (buffer, &drop_point, priv->dnd_mark); if (!gtk_text_iter_can_insert (&drop_point, priv->editable)) goto done; success = TRUE; gtk_text_buffer_begin_user_action (buffer); if (info == GTK_TEXT_BUFFER_TARGET_INFO_BUFFER_CONTENTS) { GtkTextBuffer *src_buffer = NULL; GtkTextIter start, end; gboolean copy_tags = TRUE; if (gtk_selection_data_get_length (selection_data) != sizeof (src_buffer)) return; memcpy (&src_buffer, gtk_selection_data_get_data (selection_data), sizeof (src_buffer)); if (src_buffer == NULL) return; g_return_if_fail (GTK_IS_TEXT_BUFFER (src_buffer)); if (gtk_text_buffer_get_tag_table (src_buffer) != gtk_text_buffer_get_tag_table (buffer)) { /* try to find a suitable rich text target instead */ GdkAtom *atoms; gint n_atoms; GList *list; GdkAtom target = GDK_NONE; copy_tags = FALSE; atoms = gtk_text_buffer_get_deserialize_formats (buffer, &n_atoms); for (list = gdk_drag_context_list_targets (context); list; list = list->next) { gint i; for (i = 0; i < n_atoms; i++) if (GUINT_TO_POINTER (atoms[i]) == list->data) { target = atoms[i]; break; } } g_free (atoms); if (target != GDK_NONE) { gtk_drag_get_data (widget, context, target, time); gtk_text_buffer_end_user_action (buffer); return; } } if (gtk_text_buffer_get_selection_bounds (src_buffer, &start, &end)) { if (copy_tags) gtk_text_buffer_insert_range_interactive (buffer, &drop_point, &start, &end, priv->editable); else { gchar *str; str = gtk_text_iter_get_visible_text (&start, &end); gtk_text_buffer_insert_interactive (buffer, &drop_point, str, -1, priv->editable); g_free (str); } } } else if (gtk_selection_data_get_length (selection_data) > 0 && info == GTK_TEXT_BUFFER_TARGET_INFO_RICH_TEXT) { gboolean retval; GError *error = NULL; retval = gtk_text_buffer_deserialize (buffer, buffer, gtk_selection_data_get_target (selection_data), &drop_point, (guint8 *) gtk_selection_data_get_data (selection_data), gtk_selection_data_get_length (selection_data), &error); if (!retval) { g_warning ("error pasting: %s", error->message); g_clear_error (&error); } } else insert_text_data (text_view, &drop_point, selection_data); done: gtk_drag_finish (context, success, success && gdk_drag_context_get_selected_action (context) == GDK_ACTION_MOVE, time); if (success) { gtk_text_buffer_get_iter_at_mark (buffer, &drop_point, priv->dnd_mark); gtk_text_buffer_place_cursor (buffer, &drop_point); gtk_text_buffer_end_user_action (buffer); } } /** * gtk_text_view_get_hadjustment: * @text_view: a #GtkTextView * * Gets the horizontal-scrolling #GtkAdjustment. * * Returns: (transfer none): pointer to the horizontal #GtkAdjustment * * Since: 2.22 * * Deprecated: 3.0: Use gtk_scrollable_get_hadjustment() **/ GtkAdjustment* gtk_text_view_get_hadjustment (GtkTextView *text_view) { g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL); return text_view->priv->hadjustment; } static void gtk_text_view_set_hadjustment (GtkTextView *text_view, GtkAdjustment *adjustment) { GtkTextViewPrivate *priv = text_view->priv; if (adjustment && priv->hadjustment == adjustment) return; if (priv->hadjustment != NULL) { g_signal_handlers_disconnect_by_func (priv->hadjustment, gtk_text_view_value_changed, text_view); g_object_unref (priv->hadjustment); } if (adjustment == NULL) adjustment = gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0); g_signal_connect (adjustment, "value-changed", G_CALLBACK (gtk_text_view_value_changed), text_view); priv->hadjustment = g_object_ref_sink (adjustment); gtk_text_view_set_hadjustment_values (text_view); g_object_notify (G_OBJECT (text_view), "hadjustment"); } /** * gtk_text_view_get_vadjustment: * @text_view: a #GtkTextView * * Gets the vertical-scrolling #GtkAdjustment. * * Returns: (transfer none): pointer to the vertical #GtkAdjustment * * Since: 2.22 * * Deprecated: 3.0: Use gtk_scrollable_get_vadjustment() **/ GtkAdjustment* gtk_text_view_get_vadjustment (GtkTextView *text_view) { g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL); return text_view->priv->vadjustment; } static void gtk_text_view_set_vadjustment (GtkTextView *text_view, GtkAdjustment *adjustment) { GtkTextViewPrivate *priv = text_view->priv; if (adjustment && priv->vadjustment == adjustment) return; if (priv->vadjustment != NULL) { g_signal_handlers_disconnect_by_func (priv->vadjustment, gtk_text_view_value_changed, text_view); g_object_unref (priv->vadjustment); } if (adjustment == NULL) adjustment = gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0); g_signal_connect (adjustment, "value-changed", G_CALLBACK (gtk_text_view_value_changed), text_view); priv->vadjustment = g_object_ref_sink (adjustment); gtk_text_view_set_vadjustment_values (text_view); g_object_notify (G_OBJECT (text_view), "vadjustment"); } static void gtk_text_view_set_hadjustment_values (GtkTextView *text_view) { GtkTextViewPrivate *priv; gint screen_width; gdouble old_value; gdouble new_value; gdouble new_upper; priv = text_view->priv; screen_width = SCREEN_WIDTH (text_view); old_value = gtk_adjustment_get_value (priv->hadjustment); new_upper = MAX (screen_width, priv->width); g_object_set (priv->hadjustment, "lower", 0.0, "upper", new_upper, "page-size", (gdouble)screen_width, "step-increment", screen_width * 0.1, "page-increment", screen_width * 0.9, NULL); new_value = CLAMP (old_value, 0, new_upper - screen_width); if (new_value != old_value) gtk_adjustment_set_value (priv->hadjustment, new_value); } static void gtk_text_view_set_vadjustment_values (GtkTextView *text_view) { GtkTextViewPrivate *priv; GtkTextIter first_para; gint screen_height; gint y; gdouble old_value; gdouble new_value; gdouble new_upper; priv = text_view->priv; screen_height = SCREEN_HEIGHT (text_view); old_value = gtk_adjustment_get_value (priv->vadjustment); new_upper = MAX (screen_height, priv->height); g_object_set (priv->vadjustment, "lower", 0.0, "upper", new_upper, "page-size", (gdouble)screen_height, "step-increment", screen_height * 0.1, "page-increment", screen_height * 0.9, NULL); /* Now adjust the value of the adjustment to keep the cursor at the * same place in the buffer */ gtk_text_view_ensure_layout (text_view); gtk_text_view_get_first_para_iter (text_view, &first_para); gtk_text_layout_get_line_yrange (priv->layout, &first_para, &y, NULL); y += priv->first_para_pixels; new_value = CLAMP (y, 0, new_upper - screen_height); if (new_value != old_value) gtk_adjustment_set_value (priv->vadjustment, new_value); } static void adjust_allocation (GtkWidget *widget, int dx, int dy) { GtkAllocation allocation; if (!gtk_widget_is_drawable (widget)) return; gtk_widget_get_allocation (widget, &allocation); allocation.x += dx; allocation.y += dy; gtk_widget_size_allocate (widget, &allocation); } static void gtk_text_view_value_changed (GtkAdjustment *adjustment, GtkTextView *text_view) { GtkTextViewPrivate *priv; GtkTextIter iter; gint line_top; gint dx = 0; gint dy = 0; priv = text_view->priv; /* Note that we oddly call this function with adjustment == NULL * sometimes */ priv->onscreen_validated = FALSE; DV(g_print(">Scroll offset changed %s/%g, onscreen_validated = FALSE ("G_STRLOC")\n", adjustment == priv->hadjustment ? "hadjustment" : adjustment == priv->vadjustment ? "vadjustment" : "none", adjustment ? gtk_adjustment_get_value (adjustment) : 0.0)); if (adjustment == priv->hadjustment) { dx = priv->xoffset - (gint)gtk_adjustment_get_value (adjustment); priv->xoffset = (gint)gtk_adjustment_get_value (adjustment) - priv->left_padding; /* If the change is due to a size change we need * to invalidate the entire text window because there might be * right-aligned or centered text */ if (priv->width_changed) { if (gtk_widget_get_realized (GTK_WIDGET (text_view))) gdk_window_invalidate_rect (priv->text_window->bin_window, NULL, FALSE); priv->width_changed = FALSE; } } else if (adjustment == priv->vadjustment) { dy = priv->yoffset - (gint)gtk_adjustment_get_value (adjustment) + priv->top_border ; priv->yoffset -= dy; if (priv->layout) { gtk_text_layout_get_line_at_y (priv->layout, &iter, gtk_adjustment_get_value (adjustment), &line_top); gtk_text_buffer_move_mark (get_buffer (text_view), priv->first_para_mark, &iter); priv->first_para_pixels = gtk_adjustment_get_value (adjustment) - line_top; } } if (dx != 0 || dy != 0) { GSList *tmp_list; if (gtk_widget_get_realized (GTK_WIDGET (text_view))) { if (dy != 0) { if (priv->left_window) text_window_scroll (priv->left_window, 0, dy); if (priv->right_window) text_window_scroll (priv->right_window, 0, dy); } if (dx != 0) { if (priv->top_window) text_window_scroll (priv->top_window, dx, 0); if (priv->bottom_window) text_window_scroll (priv->bottom_window, dx, 0); } /* It looks nicer to scroll the main area last, because * it takes a while, and making the side areas update * afterward emphasizes the slowness of scrolling the * main area. */ text_window_scroll (priv->text_window, dx, dy); } /* Children are now "moved" in the text window, poke * into widget->allocation for each child */ tmp_list = priv->children; while (tmp_list != NULL) { GtkTextViewChild *child = tmp_list->data; gint child_dx = 0, child_dy = 0; if (child->anchor) { child_dx = dx; child_dy = dy; } else { if (child->type == GTK_TEXT_WINDOW_TEXT || child->type == GTK_TEXT_WINDOW_LEFT || child->type == GTK_TEXT_WINDOW_RIGHT) child_dy = dy; if (child->type == GTK_TEXT_WINDOW_TEXT || child->type == GTK_TEXT_WINDOW_TOP || child->type == GTK_TEXT_WINDOW_BOTTOM) child_dx = dx; } if (child_dx != 0 || child_dy != 0) adjust_allocation (child->widget, child_dx, child_dy); tmp_list = tmp_list->next; } } /* This could result in invalidation, which would install the * first_validate_idle, which would validate onscreen; * but we're going to go ahead and validate here, so * first_validate_idle shouldn't have anything to do. */ gtk_text_view_update_layout_width (text_view); /* We also update the IM spot location here, since the IM context * might do something that leads to validation. */ gtk_text_view_update_im_spot_location (text_view); /* note that validation of onscreen could invoke this function * recursively, by scrolling to maintain first_para, or in response * to updating the layout width, however there is no problem with * that, or shouldn't be. */ gtk_text_view_validate_onscreen (text_view); /* If this got installed, get rid of it, it's just a waste of time. */ if (priv->first_validate_idle != 0) { g_source_remove (priv->first_validate_idle); priv->first_validate_idle = 0; } /* Allow to extend selection with mouse scrollwheel. Bug 710612 */ if (gtk_gesture_is_active (priv->drag_gesture)) { GdkEvent *current_event; current_event = gtk_get_current_event (); if (current_event != NULL) { if (current_event->type == GDK_SCROLL) move_mark_to_pointer_and_scroll (text_view, "insert"); gdk_event_free (current_event); } } /* Finally we update the IM cursor location again, to ensure any * changes made by the validation are pushed through. */ gtk_text_view_update_im_spot_location (text_view); if (priv->text_handle) gtk_text_view_update_handles (text_view, _gtk_text_handle_get_mode (priv->text_handle)); DV(g_print(">End scroll offset changed handler ("G_STRLOC")\n")); } static void gtk_text_view_commit_handler (GtkIMContext *context, const gchar *str, GtkTextView *text_view) { gtk_text_view_commit_text (text_view, str); } static void gtk_text_view_commit_text (GtkTextView *text_view, const gchar *str) { GtkTextViewPrivate *priv; gboolean had_selection; priv = text_view->priv; gtk_text_buffer_begin_user_action (get_buffer (text_view)); had_selection = gtk_text_buffer_get_selection_bounds (get_buffer (text_view), NULL, NULL); gtk_text_buffer_delete_selection (get_buffer (text_view), TRUE, priv->editable); if (!strcmp (str, "\n")) { if (!gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), "\n", 1, priv->editable)) { gtk_widget_error_bell (GTK_WIDGET (text_view)); } } else { if (!had_selection && priv->overwrite_mode) { GtkTextIter insert; gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert, gtk_text_buffer_get_insert (get_buffer (text_view))); if (!gtk_text_iter_ends_line (&insert)) gtk_text_view_delete_from_cursor (text_view, GTK_DELETE_CHARS, 1); } if (!gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), str, -1, priv->editable)) { gtk_widget_error_bell (GTK_WIDGET (text_view)); } } gtk_text_buffer_end_user_action (get_buffer (text_view)); gtk_text_view_set_virtual_cursor_pos (text_view, -1, -1); DV(g_print (G_STRLOC": scrolling onscreen\n")); gtk_text_view_scroll_mark_onscreen (text_view, gtk_text_buffer_get_insert (get_buffer (text_view))); } static void gtk_text_view_preedit_changed_handler (GtkIMContext *context, GtkTextView *text_view) { GtkTextViewPrivate *priv; gchar *str; PangoAttrList *attrs; gint cursor_pos; GtkTextIter iter; priv = text_view->priv; gtk_text_buffer_get_iter_at_mark (priv->buffer, &iter, gtk_text_buffer_get_insert (priv->buffer)); /* Keypress events are passed to input method even if cursor position is * not editable; so beep here if it's multi-key input sequence, input * method will be reset in key-press-event handler. */ gtk_im_context_get_preedit_string (context, &str, &attrs, &cursor_pos); if (str && str[0] && !gtk_text_iter_can_insert (&iter, priv->editable)) { gtk_widget_error_bell (GTK_WIDGET (text_view)); goto out; } g_signal_emit (text_view, signals[PREEDIT_CHANGED], 0, str); if (priv->layout) gtk_text_layout_set_preedit_string (priv->layout, str, attrs, cursor_pos); if (gtk_widget_has_focus (GTK_WIDGET (text_view))) gtk_text_view_scroll_mark_onscreen (text_view, gtk_text_buffer_get_insert (get_buffer (text_view))); out: pango_attr_list_unref (attrs); g_free (str); } static gboolean gtk_text_view_retrieve_surrounding_handler (GtkIMContext *context, GtkTextView *text_view) { GtkTextIter start; GtkTextIter end; gint pos; gchar *text; gtk_text_buffer_get_iter_at_mark (text_view->priv->buffer, &start, gtk_text_buffer_get_insert (text_view->priv->buffer)); end = start; pos = gtk_text_iter_get_line_index (&start); gtk_text_iter_set_line_offset (&start, 0); gtk_text_iter_forward_to_line_end (&end); text = gtk_text_iter_get_slice (&start, &end); gtk_im_context_set_surrounding (context, text, -1, pos); g_free (text); return TRUE; } static gboolean gtk_text_view_delete_surrounding_handler (GtkIMContext *context, gint offset, gint n_chars, GtkTextView *text_view) { GtkTextViewPrivate *priv; GtkTextIter start; GtkTextIter end; priv = text_view->priv; gtk_text_buffer_get_iter_at_mark (priv->buffer, &start, gtk_text_buffer_get_insert (priv->buffer)); end = start; gtk_text_iter_forward_chars (&start, offset); gtk_text_iter_forward_chars (&end, offset + n_chars); gtk_text_buffer_delete_interactive (priv->buffer, &start, &end, priv->editable); return TRUE; } static void gtk_text_view_mark_set_handler (GtkTextBuffer *buffer, const GtkTextIter *location, GtkTextMark *mark, gpointer data) { GtkTextView *text_view = GTK_TEXT_VIEW (data); gboolean need_reset = FALSE; gboolean has_selection; if (mark == gtk_text_buffer_get_insert (buffer)) { text_view->priv->virtual_cursor_x = -1; text_view->priv->virtual_cursor_y = -1; gtk_text_view_update_im_spot_location (text_view); need_reset = TRUE; } else if (mark == gtk_text_buffer_get_selection_bound (buffer)) { need_reset = TRUE; } if (need_reset) { gtk_text_view_reset_im_context (text_view); if (text_view->priv->text_handle) gtk_text_view_update_handles (text_view, _gtk_text_handle_get_mode (text_view->priv->text_handle)); has_selection = gtk_text_buffer_get_selection_bounds (get_buffer (text_view), NULL, NULL); gtk_css_node_set_visible (text_view->priv->selection_node, has_selection); } } static void gtk_text_view_target_list_notify (GtkTextBuffer *buffer, const GParamSpec *pspec, gpointer data) { GtkWidget *widget = GTK_WIDGET (data); GtkTargetList *view_list; GtkTargetList *buffer_list; GList *list; view_list = gtk_drag_dest_get_target_list (widget); buffer_list = gtk_text_buffer_get_paste_target_list (buffer); if (view_list) gtk_target_list_ref (view_list); else view_list = gtk_target_list_new (NULL, 0); list = view_list->list; while (list) { GtkTargetPair *pair = list->data; list = list->next; /* get next element before removing */ if (pair->info >= GTK_TEXT_BUFFER_TARGET_INFO_TEXT && pair->info <= GTK_TEXT_BUFFER_TARGET_INFO_BUFFER_CONTENTS) { gtk_target_list_remove (view_list, pair->target); } } for (list = buffer_list->list; list; list = list->next) { GtkTargetPair *pair = list->data; gtk_target_list_add (view_list, pair->target, pair->flags, pair->info); } gtk_drag_dest_set_target_list (widget, view_list); gtk_target_list_unref (view_list); } static void gtk_text_view_get_virtual_cursor_pos (GtkTextView *text_view, GtkTextIter *cursor, gint *x, gint *y) { GtkTextViewPrivate *priv; GtkTextIter insert; GdkRectangle pos; priv = text_view->priv; if (cursor) insert = *cursor; else gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert, gtk_text_buffer_get_insert (get_buffer (text_view))); if ((x && priv->virtual_cursor_x == -1) || (y && priv->virtual_cursor_y == -1)) gtk_text_layout_get_cursor_locations (priv->layout, &insert, &pos, NULL); if (x) { if (priv->virtual_cursor_x != -1) *x = priv->virtual_cursor_x; else *x = pos.x; } if (y) { if (priv->virtual_cursor_y != -1) *y = priv->virtual_cursor_y; else *y = pos.y + pos.height / 2; } } static void gtk_text_view_set_virtual_cursor_pos (GtkTextView *text_view, gint x, gint y) { GdkRectangle pos; if (!text_view->priv->layout) return; if (x == -1 || y == -1) gtk_text_view_get_cursor_locations (text_view, NULL, &pos, NULL); text_view->priv->virtual_cursor_x = (x == -1) ? pos.x : x; text_view->priv->virtual_cursor_y = (y == -1) ? pos.y + pos.height / 2 : y; } /* Quick hack of a popup menu */ static void activate_cb (GtkWidget *menuitem, GtkTextView *text_view) { const gchar *signal; signal = g_object_get_qdata (G_OBJECT (menuitem), quark_gtk_signal); g_signal_emit_by_name (text_view, signal); } static void append_action_signal (GtkTextView *text_view, GtkWidget *menu, const gchar *label, const gchar *signal, gboolean sensitive) { GtkWidget *menuitem = gtk_menu_item_new_with_mnemonic (label); g_object_set_qdata (G_OBJECT (menuitem), quark_gtk_signal, (char *)signal); g_signal_connect (menuitem, "activate", G_CALLBACK (activate_cb), text_view); gtk_widget_set_sensitive (menuitem, sensitive); gtk_widget_show (menuitem); gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem); } static void gtk_text_view_select_all (GtkWidget *widget, gboolean select) { GtkTextView *text_view = GTK_TEXT_VIEW (widget); GtkTextBuffer *buffer; GtkTextIter start_iter, end_iter, insert; buffer = text_view->priv->buffer; if (select) { gtk_text_buffer_get_bounds (buffer, &start_iter, &end_iter); gtk_text_buffer_select_range (buffer, &start_iter, &end_iter); } else { gtk_text_buffer_get_iter_at_mark (buffer, &insert, gtk_text_buffer_get_insert (buffer)); gtk_text_buffer_move_mark_by_name (buffer, "selection_bound", &insert); } } static void select_all_cb (GtkWidget *menuitem, GtkTextView *text_view) { gtk_text_view_select_all (GTK_WIDGET (text_view), TRUE); } static void delete_cb (GtkTextView *text_view) { gtk_text_buffer_delete_selection (get_buffer (text_view), TRUE, text_view->priv->editable); } static void popup_menu_detach (GtkWidget *attach_widget, GtkMenu *menu) { GTK_TEXT_VIEW (attach_widget)->priv->popup_menu = NULL; } typedef struct { GtkTextView *text_view; GdkEvent *trigger_event; } PopupInfo; static gboolean range_contains_editable_text (const GtkTextIter *start, const GtkTextIter *end, gboolean default_editability) { GtkTextIter iter = *start; while (gtk_text_iter_compare (&iter, end) < 0) { if (gtk_text_iter_editable (&iter, default_editability)) return TRUE; gtk_text_iter_forward_to_tag_toggle (&iter, NULL); } return FALSE; } static void popup_targets_received (GtkClipboard *clipboard, GtkSelectionData *data, gpointer user_data) { PopupInfo *info = user_data; GtkTextView *text_view; GtkTextViewPrivate *priv; text_view = info->text_view; priv = text_view->priv; if (gtk_widget_get_realized (GTK_WIDGET (text_view))) { /* We implicitely rely here on the fact that if we are pasting ourself, we'll * have text targets as well as the private GTK_TEXT_BUFFER_CONTENTS target. */ gboolean clipboard_contains_text; GtkWidget *menuitem; gboolean have_selection; gboolean can_insert; GtkTextIter iter; GtkTextIter sel_start, sel_end; GdkRectangle iter_location; GdkRectangle visible_rect; gboolean is_visible; clipboard_contains_text = gtk_selection_data_targets_include_text (data); if (priv->popup_menu) gtk_widget_destroy (priv->popup_menu); priv->popup_menu = gtk_menu_new (); gtk_style_context_add_class (gtk_widget_get_style_context (priv->popup_menu), GTK_STYLE_CLASS_CONTEXT_MENU); gtk_menu_attach_to_widget (GTK_MENU (priv->popup_menu), GTK_WIDGET (text_view), popup_menu_detach); have_selection = gtk_text_buffer_get_selection_bounds (get_buffer (text_view), &sel_start, &sel_end); gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, gtk_text_buffer_get_insert (get_buffer (text_view))); can_insert = gtk_text_iter_can_insert (&iter, priv->editable); append_action_signal (text_view, priv->popup_menu, _("Cu_t"), "cut-clipboard", have_selection && range_contains_editable_text (&sel_start, &sel_end, priv->editable)); append_action_signal (text_view, priv->popup_menu, _("_Copy"), "copy-clipboard", have_selection); append_action_signal (text_view, priv->popup_menu, _("_Paste"), "paste-clipboard", can_insert && clipboard_contains_text); menuitem = gtk_menu_item_new_with_mnemonic (_("_Delete")); gtk_widget_set_sensitive (menuitem, have_selection && range_contains_editable_text (&sel_start, &sel_end, priv->editable)); g_signal_connect_swapped (menuitem, "activate", G_CALLBACK (delete_cb), text_view); gtk_widget_show (menuitem); gtk_menu_shell_append (GTK_MENU_SHELL (priv->popup_menu), menuitem); menuitem = gtk_separator_menu_item_new (); gtk_widget_show (menuitem); gtk_menu_shell_append (GTK_MENU_SHELL (priv->popup_menu), menuitem); menuitem = gtk_menu_item_new_with_mnemonic (_("Select _All")); gtk_widget_set_sensitive (menuitem, gtk_text_buffer_get_char_count (priv->buffer) > 0); g_signal_connect (menuitem, "activate", G_CALLBACK (select_all_cb), text_view); gtk_widget_show (menuitem); gtk_menu_shell_append (GTK_MENU_SHELL (priv->popup_menu), menuitem); if ((gtk_text_view_get_input_hints (text_view) & GTK_INPUT_HINT_NO_EMOJI) == 0) { menuitem = gtk_menu_item_new_with_mnemonic (_("Insert _Emoji")); gtk_widget_set_sensitive (menuitem, can_insert); g_signal_connect_swapped (menuitem, "activate", G_CALLBACK (gtk_text_view_insert_emoji), text_view); gtk_widget_show (menuitem); gtk_menu_shell_append (GTK_MENU_SHELL (priv->popup_menu), menuitem); } g_signal_emit (text_view, signals[POPULATE_POPUP], 0, priv->popup_menu); if (info->trigger_event && gdk_event_triggers_context_menu (info->trigger_event)) gtk_menu_popup_at_pointer (GTK_MENU (priv->popup_menu), info->trigger_event); else { gtk_text_view_get_iter_location (text_view, &iter, &iter_location); gtk_text_view_get_visible_rect (text_view, &visible_rect); is_visible = (iter_location.x + iter_location.width > visible_rect.x && iter_location.x < visible_rect.x + visible_rect.width && iter_location.y + iter_location.height > visible_rect.y && iter_location.y < visible_rect.y + visible_rect.height); if (is_visible) { gtk_text_view_buffer_to_window_coords (text_view, GTK_TEXT_WINDOW_WIDGET, iter_location.x, iter_location.y, &iter_location.x, &iter_location.y); gtk_menu_popup_at_rect (GTK_MENU (priv->popup_menu), gtk_widget_get_window (GTK_WIDGET (text_view)), &iter_location, GDK_GRAVITY_SOUTH_EAST, GDK_GRAVITY_NORTH_WEST, info->trigger_event); } else gtk_menu_popup_at_widget (GTK_MENU (priv->popup_menu), GTK_WIDGET (text_view), GDK_GRAVITY_CENTER, GDK_GRAVITY_CENTER, info->trigger_event); gtk_menu_shell_select_first (GTK_MENU_SHELL (priv->popup_menu), FALSE); } } g_clear_pointer (&info->trigger_event, gdk_event_free); g_object_unref (text_view); g_slice_free (PopupInfo, info); } static void gtk_text_view_do_popup (GtkTextView *text_view, const GdkEvent *event) { PopupInfo *info = g_slice_new (PopupInfo); /* In order to know what entries we should make sensitive, we * ask for the current targets of the clipboard, and when * we get them, then we actually pop up the menu. */ info->text_view = g_object_ref (text_view); info->trigger_event = event ? gdk_event_copy (event) : gtk_get_current_event (); gtk_clipboard_request_contents (gtk_widget_get_clipboard (GTK_WIDGET (text_view), GDK_SELECTION_CLIPBOARD), gdk_atom_intern_static_string ("TARGETS"), popup_targets_received, info); } static gboolean gtk_text_view_popup_menu (GtkWidget *widget) { gtk_text_view_do_popup (GTK_TEXT_VIEW (widget), NULL); return TRUE; } static void gtk_text_view_get_selection_rect (GtkTextView *text_view, cairo_rectangle_int_t *rect) { cairo_rectangle_int_t rect_cursor, rect_bound; GtkTextIter cursor, bound; GtkTextBuffer *buffer; gint x1, y1, x2, y2; buffer = get_buffer (text_view); gtk_text_buffer_get_iter_at_mark (buffer, &cursor, gtk_text_buffer_get_insert (buffer)); gtk_text_buffer_get_iter_at_mark (buffer, &bound, gtk_text_buffer_get_selection_bound (buffer)); gtk_text_view_get_cursor_locations (text_view, &cursor, &rect_cursor, NULL); gtk_text_view_get_cursor_locations (text_view, &bound, &rect_bound, NULL); x1 = MIN (rect_cursor.x, rect_bound.x); x2 = MAX (rect_cursor.x, rect_bound.x); y1 = MIN (rect_cursor.y, rect_bound.y); y2 = MAX (rect_cursor.y + rect_cursor.height, rect_bound.y + rect_bound.height); rect->x = x1; rect->y = y1; rect->width = x2 - x1; rect->height = y2 - y1; } static void show_or_hide_handles (GtkWidget *popover, GParamSpec *pspec, GtkTextView *text_view) { gboolean visible; GtkTextHandle *handle; GtkTextHandleMode mode; visible = gtk_widget_get_visible (popover); handle = text_view->priv->text_handle; mode = _gtk_text_handle_get_mode (handle); if (!visible) gtk_text_view_update_handles (text_view, mode); else { _gtk_text_handle_set_visible (handle, GTK_TEXT_HANDLE_POSITION_SELECTION_START, FALSE); _gtk_text_handle_set_visible (handle, GTK_TEXT_HANDLE_POSITION_SELECTION_END, FALSE); } } static void activate_bubble_cb (GtkWidget *item, GtkTextView *text_view) { const gchar *signal; signal = g_object_get_qdata (G_OBJECT (item), quark_gtk_signal); gtk_widget_hide (text_view->priv->selection_bubble); g_signal_emit_by_name (text_view, signal); } static void append_bubble_action (GtkTextView *text_view, GtkWidget *toolbar, const gchar *label, const gchar *icon_name, const gchar *signal, gboolean sensitive) { GtkWidget *item, *image; item = gtk_button_new (); gtk_widget_set_focus_on_click (item, FALSE); image = gtk_image_new_from_icon_name (icon_name, GTK_ICON_SIZE_MENU); gtk_widget_show (image); gtk_container_add (GTK_CONTAINER (item), image); gtk_widget_set_tooltip_text (item, label); gtk_style_context_add_class (gtk_widget_get_style_context (item), "image-button"); g_object_set_qdata (G_OBJECT (item), quark_gtk_signal, (char *)signal); g_signal_connect (item, "clicked", G_CALLBACK (activate_bubble_cb), text_view); gtk_widget_set_sensitive (GTK_WIDGET (item), sensitive); gtk_widget_show (GTK_WIDGET (item)); gtk_container_add (GTK_CONTAINER (toolbar), item); } static void bubble_targets_received (GtkClipboard *clipboard, GtkSelectionData *data, gpointer user_data) { GtkTextView *text_view = user_data; GtkTextViewPrivate *priv = text_view->priv; cairo_rectangle_int_t rect; gboolean has_selection; gboolean has_clipboard; gboolean can_insert; gboolean all_selected; GtkTextIter iter; GtkTextIter sel_start, sel_end; GtkTextIter start, end; GtkWidget *box; GtkWidget *toolbar; has_selection = gtk_text_buffer_get_selection_bounds (get_buffer (text_view), &sel_start, &sel_end); gtk_text_buffer_get_bounds (get_buffer (text_view), &start, &end); all_selected = gtk_text_iter_equal (&start, &sel_start) && gtk_text_iter_equal (&end, &sel_end); if (!priv->editable && !has_selection) { priv->selection_bubble_timeout_id = 0; return; } if (priv->selection_bubble) gtk_widget_destroy (priv->selection_bubble); priv->selection_bubble = gtk_popover_new (GTK_WIDGET (text_view)); gtk_style_context_add_class (gtk_widget_get_style_context (priv->selection_bubble), GTK_STYLE_CLASS_TOUCH_SELECTION); gtk_popover_set_position (GTK_POPOVER (priv->selection_bubble), GTK_POS_BOTTOM); gtk_popover_set_modal (GTK_POPOVER (priv->selection_bubble), FALSE); g_signal_connect (priv->selection_bubble, "notify::visible", G_CALLBACK (show_or_hide_handles), text_view); box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 5); g_object_set (box, "margin", 10, NULL); gtk_widget_show (box); toolbar = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 5); gtk_widget_show (toolbar); gtk_container_add (GTK_CONTAINER (priv->selection_bubble), box); gtk_container_add (GTK_CONTAINER (box), toolbar); gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, gtk_text_buffer_get_insert (get_buffer (text_view))); can_insert = gtk_text_iter_can_insert (&iter, priv->editable); has_clipboard = gtk_selection_data_targets_include_text (data); if (range_contains_editable_text (&sel_start, &sel_end, priv->editable) && has_selection) append_bubble_action (text_view, toolbar, _("Select all"), "edit-select-all-symbolic", "select-all", !all_selected); if (range_contains_editable_text (&sel_start, &sel_end, priv->editable) && has_selection) append_bubble_action (text_view, toolbar, _("Cut"), "edit-cut-symbolic", "cut-clipboard", TRUE); if (has_selection) append_bubble_action (text_view, toolbar, _("Copy"), "edit-copy-symbolic", "copy-clipboard", TRUE); if (can_insert) append_bubble_action (text_view, toolbar, _("Paste"), "edit-paste-symbolic", "paste-clipboard", has_clipboard); if (priv->populate_all) g_signal_emit (text_view, signals[POPULATE_POPUP], 0, box); gtk_text_view_get_selection_rect (text_view, &rect); rect.x -= priv->xoffset; rect.y -= priv->yoffset; _text_window_to_widget_coords (text_view, &rect.x, &rect.y); rect.x -= 5; rect.y -= 5; rect.width += 10; rect.height += 10; gtk_popover_set_pointing_to (GTK_POPOVER (priv->selection_bubble), &rect); gtk_widget_show (priv->selection_bubble); } static gboolean gtk_text_view_selection_bubble_popup_show (gpointer user_data) { GtkTextView *text_view = user_data; gtk_clipboard_request_contents (gtk_widget_get_clipboard (GTK_WIDGET (text_view), GDK_SELECTION_CLIPBOARD), gdk_atom_intern_static_string ("TARGETS"), bubble_targets_received, text_view); text_view->priv->selection_bubble_timeout_id = 0; return G_SOURCE_REMOVE; } static void gtk_text_view_selection_bubble_popup_unset (GtkTextView *text_view) { GtkTextViewPrivate *priv; priv = text_view->priv; if (priv->selection_bubble) gtk_widget_hide (priv->selection_bubble); if (priv->selection_bubble_timeout_id) { g_source_remove (priv->selection_bubble_timeout_id); priv->selection_bubble_timeout_id = 0; } } static void gtk_text_view_selection_bubble_popup_set (GtkTextView *text_view) { GtkTextViewPrivate *priv; priv = text_view->priv; if (priv->selection_bubble_timeout_id) g_source_remove (priv->selection_bubble_timeout_id); priv->selection_bubble_timeout_id = gdk_threads_add_timeout (50, gtk_text_view_selection_bubble_popup_show, text_view); g_source_set_name_by_id (priv->selection_bubble_timeout_id, "[gtk+] gtk_text_view_selection_bubble_popup_cb"); } /* Child GdkWindows */ static void node_style_changed_cb (GtkCssNode *node, GtkCssStyleChange *change, GtkWidget *widget) { GtkTextViewPrivate *priv = GTK_TEXT_VIEW (widget)->priv; if (gtk_css_style_change_affects (change, GTK_CSS_AFFECTS_SIZE | GTK_CSS_AFFECTS_CLIP)) gtk_widget_queue_resize (widget); else gtk_widget_queue_draw (widget); if (node == priv->text_window->css_node) { GtkCssStyle *style = gtk_css_style_change_get_new_style (change); gtk_pixel_cache_set_is_opaque (priv->pixel_cache, gtk_css_style_render_background_is_opaque (style)); } } static void update_node_ordering (GtkWidget *widget) { GtkTextViewPrivate *priv = GTK_TEXT_VIEW (widget)->priv; GtkCssNode *widget_node, *sibling; if (priv->text_window == NULL) return; widget_node = gtk_widget_get_css_node (widget); sibling = priv->text_window->css_node; if (priv->left_window) { gtk_css_node_insert_before (widget_node, priv->left_window->css_node, sibling); sibling = priv->left_window->css_node; } if (priv->top_window) { gtk_css_node_insert_before (widget_node, priv->top_window->css_node, sibling); } sibling = priv->text_window->css_node; if (priv->right_window) { gtk_css_node_insert_after (widget_node, priv->right_window->css_node, sibling); sibling = priv->right_window->css_node; } if (priv->bottom_window) { gtk_css_node_insert_after (widget_node, priv->bottom_window->css_node, sibling); } } static GtkTextWindow* text_window_new (GtkTextWindowType type, GtkWidget *widget, gint width_request, gint height_request) { GtkTextWindow *win; GtkCssNode *widget_node; win = g_slice_new (GtkTextWindow); win->type = type; win->widget = widget; win->window = NULL; win->bin_window = NULL; win->requisition.width = width_request; win->requisition.height = height_request; win->allocation.width = width_request; win->allocation.height = height_request; win->allocation.x = 0; win->allocation.y = 0; widget_node = gtk_widget_get_css_node (widget); win->css_node = gtk_css_node_new (); gtk_css_node_set_parent (win->css_node, widget_node); gtk_css_node_set_state (win->css_node, gtk_css_node_get_state (widget_node)); g_signal_connect_object (win->css_node, "style-changed", G_CALLBACK (node_style_changed_cb), widget, 0); if (type == GTK_TEXT_WINDOW_TEXT) { gtk_css_node_set_name (win->css_node, I_("text")); } else { gtk_css_node_set_name (win->css_node, I_("border")); switch (type) { case GTK_TEXT_WINDOW_LEFT: gtk_css_node_add_class (win->css_node, g_quark_from_static_string (GTK_STYLE_CLASS_LEFT)); break; case GTK_TEXT_WINDOW_RIGHT: gtk_css_node_add_class (win->css_node, g_quark_from_static_string (GTK_STYLE_CLASS_RIGHT)); break; case GTK_TEXT_WINDOW_TOP: gtk_css_node_add_class (win->css_node, g_quark_from_static_string (GTK_STYLE_CLASS_TOP)); break; case GTK_TEXT_WINDOW_BOTTOM: gtk_css_node_add_class (win->css_node, g_quark_from_static_string (GTK_STYLE_CLASS_BOTTOM)); break; default: /* no extra style class */ ; } } g_object_unref (win->css_node); return win; } static void text_window_free (GtkTextWindow *win) { if (win->window) text_window_unrealize (win); gtk_css_node_set_parent (win->css_node, NULL); g_slice_free (GtkTextWindow, win); } static void gtk_text_view_get_rendered_rect (GtkTextView *text_view, GdkRectangle *rect) { GtkTextViewPrivate *priv = text_view->priv; GdkWindow *window; guint extra_w; guint extra_h; _gtk_pixel_cache_get_extra_size (priv->pixel_cache, &extra_w, &extra_h); window = gtk_text_view_get_window (text_view, GTK_TEXT_WINDOW_TEXT); rect->x = gtk_adjustment_get_value (priv->hadjustment) - extra_w; rect->y = gtk_adjustment_get_value (priv->vadjustment) - extra_h - priv->top_border; rect->height = gdk_window_get_height (window) + (extra_h * 2); rect->width = gdk_window_get_width (window) + (extra_w * 2); } static void gtk_text_view_queue_draw_region (GtkWidget *widget, const cairo_region_t *region) { GtkTextView *text_view = GTK_TEXT_VIEW (widget); /* There is no way we can know if a region targets the not-currently-visible but in pixel cache region, so we always just invalidate the whole thing whenever the text view gets a queue draw. This doesn't normally happen in normal scrolling cases anyway. */ _gtk_pixel_cache_invalidate (text_view->priv->pixel_cache, NULL); GTK_WIDGET_CLASS (gtk_text_view_parent_class)->queue_draw_region (widget, region); } static void text_window_invalidate_handler (GdkWindow *window, cairo_region_t *region) { gpointer widget; GtkTextView *text_view; GtkTextViewPrivate *priv; int x, y; gdk_window_get_user_data (window, &widget); text_view = GTK_TEXT_VIEW (widget); priv = text_view->priv; /* Scrolling will invalidate everything in the bin window, * but we already have it in the cache, so we can ignore that */ if (priv->in_scroll) return; x = priv->xoffset; y = priv->yoffset + priv->top_border; cairo_region_translate (region, x, y); _gtk_pixel_cache_invalidate (priv->pixel_cache, region); cairo_region_translate (region, -x, -y); } static void text_window_realize (GtkTextWindow *win, GtkWidget *widget) { GdkWindow *window; GdkWindowAttr attributes; gint attributes_mask; GdkDisplay *display; GdkCursor *cursor; attributes.window_type = GDK_WINDOW_CHILD; attributes.x = win->allocation.x; attributes.y = win->allocation.y; attributes.width = win->allocation.width; attributes.height = win->allocation.height; attributes.wclass = GDK_INPUT_OUTPUT; attributes.visual = gtk_widget_get_visual (win->widget); attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK; attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL; window = gtk_widget_get_window (widget); win->window = gdk_window_new (window, &attributes, attributes_mask); gdk_window_show (win->window); gtk_widget_register_window (win->widget, win->window); gdk_window_lower (win->window); attributes.x = 0; attributes.y = 0; attributes.width = win->allocation.width; attributes.height = win->allocation.height; attributes.event_mask = gtk_widget_get_events (win->widget) | GDK_SCROLL_MASK | GDK_SMOOTH_SCROLL_MASK | GDK_KEY_PRESS_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK; win->bin_window = gdk_window_new (win->window, &attributes, attributes_mask); gtk_widget_register_window (win->widget, win->bin_window); if (win->type == GTK_TEXT_WINDOW_TEXT) gdk_window_set_invalidate_handler (win->bin_window, text_window_invalidate_handler); gdk_window_show (win->bin_window); switch (win->type) { case GTK_TEXT_WINDOW_TEXT: if (gtk_widget_is_sensitive (widget)) { display = gdk_window_get_display (window); cursor = gdk_cursor_new_from_name (display, "text"); gdk_window_set_cursor (win->bin_window, cursor); g_clear_object (&cursor); } gtk_im_context_set_client_window (GTK_TEXT_VIEW (widget)->priv->im_context, win->window); break; default: break; } g_object_set_qdata (G_OBJECT (win->window), g_quark_from_static_string ("gtk-text-view-text-window"), win); g_object_set_qdata (G_OBJECT (win->bin_window), g_quark_from_static_string ("gtk-text-view-text-window"), win); } static void text_window_unrealize (GtkTextWindow *win) { if (win->type == GTK_TEXT_WINDOW_TEXT) { gtk_im_context_set_client_window (GTK_TEXT_VIEW (win->widget)->priv->im_context, NULL); } gtk_widget_unregister_window (win->widget, win->window); gtk_widget_unregister_window (win->widget, win->bin_window); gdk_window_destroy (win->bin_window); gdk_window_destroy (win->window); win->window = NULL; win->bin_window = NULL; } static void text_window_size_allocate (GtkTextWindow *win, GdkRectangle *rect) { win->allocation = *rect; if (win->window) { gdk_window_move_resize (win->window, rect->x, rect->y, rect->width, rect->height); gdk_window_resize (win->bin_window, rect->width, rect->height); } } static void text_window_scroll (GtkTextWindow *win, gint dx, gint dy) { GtkTextView *view = GTK_TEXT_VIEW (win->widget); GtkTextViewPrivate *priv = view->priv; if (dx != 0 || dy != 0) { if (priv->selection_bubble) gtk_widget_hide (priv->selection_bubble); view->priv->in_scroll = TRUE; gdk_window_scroll (win->bin_window, dx, dy); view->priv->in_scroll = FALSE; } } static void text_window_invalidate_rect (GtkTextWindow *win, GdkRectangle *rect) { GdkRectangle window_rect; if (!win->bin_window) return; gtk_text_view_buffer_to_window_coords (GTK_TEXT_VIEW (win->widget), win->type, rect->x, rect->y, &window_rect.x, &window_rect.y); window_rect.width = rect->width; window_rect.height = rect->height; /* Adjust the rect as appropriate */ switch (win->type) { case GTK_TEXT_WINDOW_TEXT: break; case GTK_TEXT_WINDOW_LEFT: case GTK_TEXT_WINDOW_RIGHT: window_rect.x = 0; window_rect.width = win->allocation.width; break; case GTK_TEXT_WINDOW_TOP: case GTK_TEXT_WINDOW_BOTTOM: window_rect.y = 0; window_rect.height = win->allocation.height; break; default: g_warning ("%s: bug!", G_STRFUNC); return; break; } gdk_window_invalidate_rect (win->bin_window, &window_rect, FALSE); #if 0 { cairo_t *cr = gdk_cairo_create (win->bin_window); gdk_cairo_rectangle (cr, &window_rect); cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); /* red */ cairo_fill (cr); cairo_destroy (cr); } #endif } static void text_window_invalidate_cursors (GtkTextWindow *win) { GtkTextView *text_view; GtkTextViewPrivate *priv; GtkTextIter iter; GdkRectangle strong; GdkRectangle weak; gboolean draw_arrow; gfloat cursor_aspect_ratio; gint stem_width; gint arrow_width; text_view = GTK_TEXT_VIEW (win->widget); priv = text_view->priv; gtk_text_buffer_get_iter_at_mark (priv->buffer, &iter, gtk_text_buffer_get_insert (priv->buffer)); if (_gtk_text_layout_get_block_cursor (priv->layout, &strong)) { text_window_invalidate_rect (win, &strong); return; } gtk_text_layout_get_cursor_locations (priv->layout, &iter, &strong, &weak); /* cursor width calculation as in gtkstylecontext.c:draw_insertion_cursor(), * ignoring the text direction be exposing both sides of the cursor */ draw_arrow = (strong.x != weak.x || strong.y != weak.y); gtk_widget_style_get (win->widget, "cursor-aspect-ratio", &cursor_aspect_ratio, NULL); stem_width = strong.height * cursor_aspect_ratio + 1; arrow_width = stem_width + 1; strong.width = stem_width; /* round up to the next even number */ if (stem_width & 1) stem_width++; strong.x -= stem_width / 2; strong.width += stem_width; if (draw_arrow) { strong.x -= arrow_width; strong.width += arrow_width * 2; } text_window_invalidate_rect (win, &strong); if (draw_arrow) /* == have weak */ { stem_width = weak.height * cursor_aspect_ratio + 1; arrow_width = stem_width + 1; weak.width = stem_width; /* round up to the next even number */ if (stem_width & 1) stem_width++; weak.x -= stem_width / 2; weak.width += stem_width; weak.x -= arrow_width; weak.width += arrow_width * 2; text_window_invalidate_rect (win, &weak); } } static gint text_window_get_width (GtkTextWindow *win) { return win->allocation.width; } static gint text_window_get_height (GtkTextWindow *win) { return win->allocation.height; } /* Windows */ /** * gtk_text_view_get_window: * @text_view: a #GtkTextView * @win: window to get * * Retrieves the #GdkWindow corresponding to an area of the text view; * possible windows include the overall widget window, child windows * on the left, right, top, bottom, and the window that displays the * text buffer. Windows are %NULL and nonexistent if their width or * height is 0, and are nonexistent before the widget has been * realized. * * Returns: (nullable) (transfer none): a #GdkWindow, or %NULL **/ GdkWindow* gtk_text_view_get_window (GtkTextView *text_view, GtkTextWindowType win) { GtkTextViewPrivate *priv = text_view->priv; g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL); switch (win) { case GTK_TEXT_WINDOW_WIDGET: return gtk_widget_get_window (GTK_WIDGET (text_view)); break; case GTK_TEXT_WINDOW_TEXT: return priv->text_window->bin_window; break; case GTK_TEXT_WINDOW_LEFT: if (priv->left_window) return priv->left_window->bin_window; else return NULL; break; case GTK_TEXT_WINDOW_RIGHT: if (priv->right_window) return priv->right_window->bin_window; else return NULL; break; case GTK_TEXT_WINDOW_TOP: if (priv->top_window) return priv->top_window->bin_window; else return NULL; break; case GTK_TEXT_WINDOW_BOTTOM: if (priv->bottom_window) return priv->bottom_window->bin_window; else return NULL; break; case GTK_TEXT_WINDOW_PRIVATE: g_warning ("%s: You can't get GTK_TEXT_WINDOW_PRIVATE, it has \"PRIVATE\" in the name because it is private.", G_STRFUNC); return NULL; break; } g_warning ("%s: Unknown GtkTextWindowType", G_STRFUNC); return NULL; } static GtkCssNode * gtk_text_view_get_css_node (GtkTextView *text_view, GtkTextWindowType win) { GtkTextViewPrivate *priv = text_view->priv; switch (win) { case GTK_TEXT_WINDOW_WIDGET: return gtk_widget_get_css_node (GTK_WIDGET (text_view)); case GTK_TEXT_WINDOW_TEXT: return priv->text_window->css_node; case GTK_TEXT_WINDOW_LEFT: if (priv->left_window) return priv->left_window->css_node; break; case GTK_TEXT_WINDOW_RIGHT: if (priv->right_window) return priv->right_window->css_node; break; case GTK_TEXT_WINDOW_TOP: if (priv->top_window) return priv->top_window->css_node; break; case GTK_TEXT_WINDOW_BOTTOM: if (priv->bottom_window) return priv->bottom_window->css_node; break; default: break; } return NULL; } /** * gtk_text_view_get_window_type: * @text_view: a #GtkTextView * @window: a window type * * Usually used to find out which window an event corresponds to. * * If you connect to an event signal on @text_view, this function * should be called on `event->window` to see which window it was. * * Returns: the window type. **/ GtkTextWindowType gtk_text_view_get_window_type (GtkTextView *text_view, GdkWindow *window) { GtkTextWindow *win; g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), GTK_TEXT_WINDOW_PRIVATE); g_return_val_if_fail (GDK_IS_WINDOW (window), GTK_TEXT_WINDOW_PRIVATE); if (window == gtk_widget_get_window (GTK_WIDGET (text_view))) return GTK_TEXT_WINDOW_WIDGET; win = g_object_get_qdata (G_OBJECT (window), g_quark_try_string ("gtk-text-view-text-window")); if (win) return win->type; return GTK_TEXT_WINDOW_PRIVATE; } static void buffer_to_widget (GtkTextView *text_view, gint buffer_x, gint buffer_y, gint *window_x, gint *window_y) { GtkTextViewPrivate *priv = text_view->priv; if (window_x) { *window_x = buffer_x - priv->xoffset; *window_x += priv->text_window->allocation.x; } if (window_y) { *window_y = buffer_y - priv->yoffset; *window_y += priv->text_window->allocation.y; } } static void widget_to_text_window (GtkTextWindow *win, gint widget_x, gint widget_y, gint *window_x, gint *window_y) { if (window_x) *window_x = widget_x - win->allocation.x; if (window_y) *window_y = widget_y - win->allocation.y; } static void buffer_to_text_window (GtkTextView *text_view, GtkTextWindow *win, gint buffer_x, gint buffer_y, gint *window_x, gint *window_y) { if (win == NULL) { g_warning ("Attempt to convert text buffer coordinates to coordinates " "for a nonexistent or private child window of GtkTextView"); return; } buffer_to_widget (text_view, buffer_x, buffer_y, window_x, window_y); widget_to_text_window (win, window_x ? *window_x : 0, window_y ? *window_y : 0, window_x, window_y); } /** * gtk_text_view_buffer_to_window_coords: * @text_view: a #GtkTextView * @win: a #GtkTextWindowType, except %GTK_TEXT_WINDOW_PRIVATE * @buffer_x: buffer x coordinate * @buffer_y: buffer y coordinate * @window_x: (out) (allow-none): window x coordinate return location or %NULL * @window_y: (out) (allow-none): window y coordinate return location or %NULL * * Converts coordinate (@buffer_x, @buffer_y) to coordinates for the window * @win, and stores the result in (@window_x, @window_y). * * Note that you can’t convert coordinates for a nonexisting window (see * gtk_text_view_set_border_window_size()). **/ void gtk_text_view_buffer_to_window_coords (GtkTextView *text_view, GtkTextWindowType win, gint buffer_x, gint buffer_y, gint *window_x, gint *window_y) { GtkTextViewPrivate *priv = text_view->priv; g_return_if_fail (GTK_IS_TEXT_VIEW (text_view)); g_return_if_fail (win != GTK_TEXT_WINDOW_PRIVATE); switch (win) { case GTK_TEXT_WINDOW_WIDGET: buffer_to_widget (text_view, buffer_x, buffer_y, window_x, window_y); break; case GTK_TEXT_WINDOW_TEXT: if (window_x) *window_x = buffer_x - priv->xoffset; if (window_y) *window_y = buffer_y - priv->yoffset; break; case GTK_TEXT_WINDOW_LEFT: buffer_to_text_window (text_view, priv->left_window, buffer_x, buffer_y, window_x, window_y); break; case GTK_TEXT_WINDOW_RIGHT: buffer_to_text_window (text_view, priv->right_window, buffer_x, buffer_y, window_x, window_y); break; case GTK_TEXT_WINDOW_TOP: buffer_to_text_window (text_view, priv->top_window, buffer_x, buffer_y, window_x, window_y); break; case GTK_TEXT_WINDOW_BOTTOM: buffer_to_text_window (text_view, priv->bottom_window, buffer_x, buffer_y, window_x, window_y); break; case GTK_TEXT_WINDOW_PRIVATE: g_warning ("%s: can't get coords for private windows", G_STRFUNC); break; default: g_warning ("%s: Unknown GtkTextWindowType", G_STRFUNC); break; } } static void widget_to_buffer (GtkTextView *text_view, gint widget_x, gint widget_y, gint *buffer_x, gint *buffer_y) { GtkTextViewPrivate *priv = text_view->priv; if (buffer_x) { *buffer_x = widget_x + priv->xoffset; *buffer_x -= priv->text_window->allocation.x; } if (buffer_y) { *buffer_y = widget_y + priv->yoffset; *buffer_y -= priv->text_window->allocation.y; } } static void text_window_to_widget (GtkTextWindow *win, gint window_x, gint window_y, gint *widget_x, gint *widget_y) { if (widget_x) *widget_x = window_x + win->allocation.x; if (widget_y) *widget_y = window_y + win->allocation.y; } static void text_window_to_buffer (GtkTextView *text_view, GtkTextWindow *win, gint window_x, gint window_y, gint *buffer_x, gint *buffer_y) { if (win == NULL) { g_warning ("Attempt to convert GtkTextView buffer coordinates into " "coordinates for a nonexistent child window."); return; } text_window_to_widget (win, window_x, window_y, buffer_x, buffer_y); widget_to_buffer (text_view, buffer_x ? *buffer_x : 0, buffer_y ? *buffer_y : 0, buffer_x, buffer_y); } /** * gtk_text_view_window_to_buffer_coords: * @text_view: a #GtkTextView * @win: a #GtkTextWindowType except %GTK_TEXT_WINDOW_PRIVATE * @window_x: window x coordinate * @window_y: window y coordinate * @buffer_x: (out) (allow-none): buffer x coordinate return location or %NULL * @buffer_y: (out) (allow-none): buffer y coordinate return location or %NULL * * Converts coordinates on the window identified by @win to buffer * coordinates, storing the result in (@buffer_x,@buffer_y). * * Note that you can’t convert coordinates for a nonexisting window (see * gtk_text_view_set_border_window_size()). **/ void gtk_text_view_window_to_buffer_coords (GtkTextView *text_view, GtkTextWindowType win, gint window_x, gint window_y, gint *buffer_x, gint *buffer_y) { GtkTextViewPrivate *priv = text_view->priv; g_return_if_fail (GTK_IS_TEXT_VIEW (text_view)); g_return_if_fail (win != GTK_TEXT_WINDOW_PRIVATE); switch (win) { case GTK_TEXT_WINDOW_WIDGET: widget_to_buffer (text_view, window_x, window_y, buffer_x, buffer_y); break; case GTK_TEXT_WINDOW_TEXT: if (buffer_x) *buffer_x = window_x + priv->xoffset; if (buffer_y) *buffer_y = window_y + priv->yoffset; break; case GTK_TEXT_WINDOW_LEFT: text_window_to_buffer (text_view, priv->left_window, window_x, window_y, buffer_x, buffer_y); break; case GTK_TEXT_WINDOW_RIGHT: text_window_to_buffer (text_view, priv->right_window, window_x, window_y, buffer_x, buffer_y); break; case GTK_TEXT_WINDOW_TOP: text_window_to_buffer (text_view, priv->top_window, window_x, window_y, buffer_x, buffer_y); break; case GTK_TEXT_WINDOW_BOTTOM: text_window_to_buffer (text_view, priv->bottom_window, window_x, window_y, buffer_x, buffer_y); break; case GTK_TEXT_WINDOW_PRIVATE: g_warning ("%s: can't get coords for private windows", G_STRFUNC); break; default: g_warning ("%s: Unknown GtkTextWindowType", G_STRFUNC); break; } } static void set_window_width (GtkTextView *text_view, gint width, GtkTextWindowType type, GtkTextWindow **winp) { if (width == 0) { if (*winp) { text_window_free (*winp); *winp = NULL; gtk_widget_queue_resize (GTK_WIDGET (text_view)); } } else { if (*winp == NULL) { *winp = text_window_new (type, GTK_WIDGET (text_view), width, 0); /* if the widget is already realized we need to realize the child manually */ if (gtk_widget_get_realized (GTK_WIDGET (text_view))) text_window_realize (*winp, GTK_WIDGET (text_view)); update_node_ordering (GTK_WIDGET (text_view)); } else { if ((*winp)->requisition.width == width) return; (*winp)->requisition.width = width; } gtk_widget_queue_resize (GTK_WIDGET (text_view)); } } static void set_window_height (GtkTextView *text_view, gint height, GtkTextWindowType type, GtkTextWindow **winp) { if (height == 0) { if (*winp) { text_window_free (*winp); *winp = NULL; gtk_widget_queue_resize (GTK_WIDGET (text_view)); } } else { if (*winp == NULL) { *winp = text_window_new (type, GTK_WIDGET (text_view), 0, height); /* if the widget is already realized we need to realize the child manually */ if (gtk_widget_get_realized (GTK_WIDGET (text_view))) text_window_realize (*winp, GTK_WIDGET (text_view)); update_node_ordering (GTK_WIDGET (text_view)); } else { if ((*winp)->requisition.height == height) return; (*winp)->requisition.height = height; } gtk_widget_queue_resize (GTK_WIDGET (text_view)); } } /** * gtk_text_view_set_border_window_size: * @text_view: a #GtkTextView * @type: window to affect * @size: width or height of the window * * Sets the width of %GTK_TEXT_WINDOW_LEFT or %GTK_TEXT_WINDOW_RIGHT, * or the height of %GTK_TEXT_WINDOW_TOP or %GTK_TEXT_WINDOW_BOTTOM. * Automatically destroys the corresponding window if the size is set * to 0, and creates the window if the size is set to non-zero. This * function can only be used for the “border windows”, and it won’t * work with %GTK_TEXT_WINDOW_WIDGET, %GTK_TEXT_WINDOW_TEXT, or * %GTK_TEXT_WINDOW_PRIVATE. **/ void gtk_text_view_set_border_window_size (GtkTextView *text_view, GtkTextWindowType type, gint size) { GtkTextViewPrivate *priv = text_view->priv; g_return_if_fail (GTK_IS_TEXT_VIEW (text_view)); g_return_if_fail (type != GTK_TEXT_WINDOW_PRIVATE); g_return_if_fail (size >= 0); switch (type) { case GTK_TEXT_WINDOW_LEFT: set_window_width (text_view, size, GTK_TEXT_WINDOW_LEFT, &priv->left_window); break; case GTK_TEXT_WINDOW_RIGHT: set_window_width (text_view, size, GTK_TEXT_WINDOW_RIGHT, &priv->right_window); break; case GTK_TEXT_WINDOW_TOP: set_window_height (text_view, size, GTK_TEXT_WINDOW_TOP, &priv->top_window); break; case GTK_TEXT_WINDOW_BOTTOM: set_window_height (text_view, size, GTK_TEXT_WINDOW_BOTTOM, &priv->bottom_window); break; default: g_warning ("Can only set size of left/right/top/bottom border windows with gtk_text_view_set_border_window_size()"); break; } } /** * gtk_text_view_get_border_window_size: * @text_view: a #GtkTextView * @type: window to return size from * * Gets the width of the specified border window. See * gtk_text_view_set_border_window_size(). * * Returns: width of window **/ gint gtk_text_view_get_border_window_size (GtkTextView *text_view, GtkTextWindowType type) { GtkTextViewPrivate *priv = text_view->priv; g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0); switch (type) { case GTK_TEXT_WINDOW_LEFT: if (priv->left_window) return priv->left_window->requisition.width; break; case GTK_TEXT_WINDOW_RIGHT: if (priv->right_window) return priv->right_window->requisition.width; break; case GTK_TEXT_WINDOW_TOP: if (priv->top_window) return priv->top_window->requisition.height; break; case GTK_TEXT_WINDOW_BOTTOM: if (priv->bottom_window) return priv->bottom_window->requisition.height; break; default: g_warning ("Can only get size of left/right/top/bottom border windows with gtk_text_view_get_border_window_size()"); break; } return 0; } /* * Child widgets */ static GtkTextViewChild* text_view_child_new_anchored (GtkWidget *child, GtkTextChildAnchor *anchor, GtkTextLayout *layout) { GtkTextViewChild *vc; vc = g_slice_new (GtkTextViewChild); vc->type = GTK_TEXT_WINDOW_PRIVATE; vc->widget = child; vc->anchor = anchor; vc->from_top_of_line = 0; vc->from_left_of_buffer = 0; g_object_ref (vc->widget); g_object_ref (vc->anchor); g_object_set_qdata (G_OBJECT (child), quark_text_view_child, vc); gtk_text_child_anchor_register_child (anchor, child, layout); return vc; } static GtkTextViewChild* text_view_child_new_window (GtkWidget *child, GtkTextWindowType type, gint x, gint y) { GtkTextViewChild *vc; vc = g_slice_new (GtkTextViewChild); vc->widget = child; vc->anchor = NULL; vc->from_top_of_line = 0; vc->from_left_of_buffer = 0; g_object_ref (vc->widget); vc->type = type; vc->x = x; vc->y = y; g_object_set_qdata (G_OBJECT (child), quark_text_view_child, vc); return vc; } static void text_view_child_free (GtkTextViewChild *child) { g_object_set_qdata (G_OBJECT (child->widget), quark_text_view_child, NULL); if (child->anchor) { gtk_text_child_anchor_unregister_child (child->anchor, child->widget); g_object_unref (child->anchor); } g_object_unref (child->widget); g_slice_free (GtkTextViewChild, child); } static void text_view_child_set_parent_window (GtkTextView *text_view, GtkTextViewChild *vc) { if (vc->anchor) gtk_widget_set_parent_window (vc->widget, text_view->priv->text_window->bin_window); else { GdkWindow *window; window = gtk_text_view_get_window (text_view, vc->type); gtk_widget_set_parent_window (vc->widget, window); } } static void add_child (GtkTextView *text_view, GtkTextViewChild *vc) { GtkCssNode *parent; text_view->priv->children = g_slist_prepend (text_view->priv->children, vc); if (gtk_widget_get_realized (GTK_WIDGET (text_view))) text_view_child_set_parent_window (text_view, vc); parent = gtk_text_view_get_css_node (text_view, vc->type); if (parent == NULL) parent = gtk_widget_get_css_node (GTK_WIDGET (text_view)); gtk_css_node_set_parent (gtk_widget_get_css_node (vc->widget), parent); gtk_widget_set_parent (vc->widget, GTK_WIDGET (text_view)); } /** * gtk_text_view_add_child_at_anchor: * @text_view: a #GtkTextView * @child: a #GtkWidget * @anchor: a #GtkTextChildAnchor in the #GtkTextBuffer for @text_view * * Adds a child widget in the text buffer, at the given @anchor. **/ void gtk_text_view_add_child_at_anchor (GtkTextView *text_view, GtkWidget *child, GtkTextChildAnchor *anchor) { GtkTextViewChild *vc; g_return_if_fail (GTK_IS_TEXT_VIEW (text_view)); g_return_if_fail (GTK_IS_WIDGET (child)); g_return_if_fail (GTK_IS_TEXT_CHILD_ANCHOR (anchor)); g_return_if_fail (gtk_widget_get_parent (child) == NULL); gtk_text_view_ensure_layout (text_view); vc = text_view_child_new_anchored (child, anchor, text_view->priv->layout); add_child (text_view, vc); g_assert (vc->widget == child); g_assert (gtk_widget_get_parent (child) == GTK_WIDGET (text_view)); } /** * gtk_text_view_add_child_in_window: * @text_view: a #GtkTextView * @child: a #GtkWidget * @which_window: which window the child should appear in * @xpos: X position of child in window coordinates * @ypos: Y position of child in window coordinates * * Adds a child at fixed coordinates in one of the text widget's * windows. * * The window must have nonzero size (see * gtk_text_view_set_border_window_size()). Note that the child * coordinates are given relative to scrolling. When * placing a child in #GTK_TEXT_WINDOW_WIDGET, scrolling is * irrelevant, the child floats above all scrollable areas. But when * placing a child in one of the scrollable windows (border windows or * text window) it will move with the scrolling as needed. */ void gtk_text_view_add_child_in_window (GtkTextView *text_view, GtkWidget *child, GtkTextWindowType which_window, gint xpos, gint ypos) { GtkTextViewChild *vc; g_return_if_fail (GTK_IS_TEXT_VIEW (text_view)); g_return_if_fail (GTK_IS_WIDGET (child)); g_return_if_fail (gtk_widget_get_parent (child) == NULL); vc = text_view_child_new_window (child, which_window, xpos, ypos); add_child (text_view, vc); g_assert (vc->widget == child); g_assert (gtk_widget_get_parent (child) == GTK_WIDGET (text_view)); } /** * gtk_text_view_move_child: * @text_view: a #GtkTextView * @child: child widget already added to the text view * @xpos: new X position in window coordinates * @ypos: new Y position in window coordinates * * Updates the position of a child, as for gtk_text_view_add_child_in_window(). **/ void gtk_text_view_move_child (GtkTextView *text_view, GtkWidget *child, gint xpos, gint ypos) { GtkTextViewChild *vc; g_return_if_fail (GTK_IS_TEXT_VIEW (text_view)); g_return_if_fail (GTK_IS_WIDGET (child)); g_return_if_fail (gtk_widget_get_parent (child) == GTK_WIDGET (text_view)); vc = g_object_get_qdata (G_OBJECT (child), quark_text_view_child); g_assert (vc != NULL); if (vc->x == xpos && vc->y == ypos) return; vc->x = xpos; vc->y = ypos; if (gtk_widget_get_visible (child) && gtk_widget_get_visible (GTK_WIDGET (text_view))) gtk_widget_queue_resize (child); } /* Iterator operations */ /** * gtk_text_view_forward_display_line: * @text_view: a #GtkTextView * @iter: a #GtkTextIter * * Moves the given @iter forward by one display (wrapped) line. * A display line is different from a paragraph. Paragraphs are * separated by newlines or other paragraph separator characters. * Display lines are created by line-wrapping a paragraph. If * wrapping is turned off, display lines and paragraphs will be the * same. Display lines are divided differently for each view, since * they depend on the view’s width; paragraphs are the same in all * views, since they depend on the contents of the #GtkTextBuffer. * * Returns: %TRUE if @iter was moved and is not on the end iterator **/ gboolean gtk_text_view_forward_display_line (GtkTextView *text_view, GtkTextIter *iter) { g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE); g_return_val_if_fail (iter != NULL, FALSE); gtk_text_view_ensure_layout (text_view); return gtk_text_layout_move_iter_to_next_line (text_view->priv->layout, iter); } /** * gtk_text_view_backward_display_line: * @text_view: a #GtkTextView * @iter: a #GtkTextIter * * Moves the given @iter backward by one display (wrapped) line. * A display line is different from a paragraph. Paragraphs are * separated by newlines or other paragraph separator characters. * Display lines are created by line-wrapping a paragraph. If * wrapping is turned off, display lines and paragraphs will be the * same. Display lines are divided differently for each view, since * they depend on the view’s width; paragraphs are the same in all * views, since they depend on the contents of the #GtkTextBuffer. * * Returns: %TRUE if @iter was moved and is not on the end iterator **/ gboolean gtk_text_view_backward_display_line (GtkTextView *text_view, GtkTextIter *iter) { g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE); g_return_val_if_fail (iter != NULL, FALSE); gtk_text_view_ensure_layout (text_view); return gtk_text_layout_move_iter_to_previous_line (text_view->priv->layout, iter); } /** * gtk_text_view_forward_display_line_end: * @text_view: a #GtkTextView * @iter: a #GtkTextIter * * Moves the given @iter forward to the next display line end. * A display line is different from a paragraph. Paragraphs are * separated by newlines or other paragraph separator characters. * Display lines are created by line-wrapping a paragraph. If * wrapping is turned off, display lines and paragraphs will be the * same. Display lines are divided differently for each view, since * they depend on the view’s width; paragraphs are the same in all * views, since they depend on the contents of the #GtkTextBuffer. * * Returns: %TRUE if @iter was moved and is not on the end iterator **/ gboolean gtk_text_view_forward_display_line_end (GtkTextView *text_view, GtkTextIter *iter) { g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE); g_return_val_if_fail (iter != NULL, FALSE); gtk_text_view_ensure_layout (text_view); return gtk_text_layout_move_iter_to_line_end (text_view->priv->layout, iter, 1); } /** * gtk_text_view_backward_display_line_start: * @text_view: a #GtkTextView * @iter: a #GtkTextIter * * Moves the given @iter backward to the next display line start. * A display line is different from a paragraph. Paragraphs are * separated by newlines or other paragraph separator characters. * Display lines are created by line-wrapping a paragraph. If * wrapping is turned off, display lines and paragraphs will be the * same. Display lines are divided differently for each view, since * they depend on the view’s width; paragraphs are the same in all * views, since they depend on the contents of the #GtkTextBuffer. * * Returns: %TRUE if @iter was moved and is not on the end iterator **/ gboolean gtk_text_view_backward_display_line_start (GtkTextView *text_view, GtkTextIter *iter) { g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE); g_return_val_if_fail (iter != NULL, FALSE); gtk_text_view_ensure_layout (text_view); return gtk_text_layout_move_iter_to_line_end (text_view->priv->layout, iter, -1); } /** * gtk_text_view_starts_display_line: * @text_view: a #GtkTextView * @iter: a #GtkTextIter * * Determines whether @iter is at the start of a display line. * See gtk_text_view_forward_display_line() for an explanation of * display lines vs. paragraphs. * * Returns: %TRUE if @iter begins a wrapped line **/ gboolean gtk_text_view_starts_display_line (GtkTextView *text_view, const GtkTextIter *iter) { g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE); g_return_val_if_fail (iter != NULL, FALSE); gtk_text_view_ensure_layout (text_view); return gtk_text_layout_iter_starts_line (text_view->priv->layout, iter); } /** * gtk_text_view_move_visually: * @text_view: a #GtkTextView * @iter: a #GtkTextIter * @count: number of characters to move (negative moves left, * positive moves right) * * Move the iterator a given number of characters visually, treating * it as the strong cursor position. If @count is positive, then the * new strong cursor position will be @count positions to the right of * the old cursor position. If @count is negative then the new strong * cursor position will be @count positions to the left of the old * cursor position. * * In the presence of bi-directional text, the correspondence * between logical and visual order will depend on the direction * of the current run, and there may be jumps when the cursor * is moved off of the end of a run. * * Returns: %TRUE if @iter moved and is not on the end iterator **/ gboolean gtk_text_view_move_visually (GtkTextView *text_view, GtkTextIter *iter, gint count) { g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE); g_return_val_if_fail (iter != NULL, FALSE); gtk_text_view_ensure_layout (text_view); return gtk_text_layout_move_iter_visually (text_view->priv->layout, iter, count); } /** * gtk_text_view_set_input_purpose: * @text_view: a #GtkTextView * @purpose: the purpose * * Sets the #GtkTextView:input-purpose property which * can be used by on-screen keyboards and other input * methods to adjust their behaviour. * * Since: 3.6 */ void gtk_text_view_set_input_purpose (GtkTextView *text_view, GtkInputPurpose purpose) { g_return_if_fail (GTK_IS_TEXT_VIEW (text_view)); if (gtk_text_view_get_input_purpose (text_view) != purpose) { g_object_set (G_OBJECT (text_view->priv->im_context), "input-purpose", purpose, NULL); g_object_notify (G_OBJECT (text_view), "input-purpose"); } } /** * gtk_text_view_get_input_purpose: * @text_view: a #GtkTextView * * Gets the value of the #GtkTextView:input-purpose property. * * Since: 3.6 */ GtkInputPurpose gtk_text_view_get_input_purpose (GtkTextView *text_view) { GtkInputPurpose purpose; g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), GTK_INPUT_PURPOSE_FREE_FORM); g_object_get (G_OBJECT (text_view->priv->im_context), "input-purpose", &purpose, NULL); return purpose; } /** * gtk_text_view_set_input_hints: * @text_view: a #GtkTextView * @hints: the hints * * Sets the #GtkTextView:input-hints property, which * allows input methods to fine-tune their behaviour. * * Since: 3.6 */ void gtk_text_view_set_input_hints (GtkTextView *text_view, GtkInputHints hints) { g_return_if_fail (GTK_IS_TEXT_VIEW (text_view)); if (gtk_text_view_get_input_hints (text_view) != hints) { g_object_set (G_OBJECT (text_view->priv->im_context), "input-hints", hints, NULL); g_object_notify (G_OBJECT (text_view), "input-hints"); } } /** * gtk_text_view_get_input_hints: * @text_view: a #GtkTextView * * Gets the value of the #GtkTextView:input-hints property. * * Since: 3.6 */ GtkInputHints gtk_text_view_get_input_hints (GtkTextView *text_view) { GtkInputHints hints; g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), GTK_INPUT_HINT_NONE); g_object_get (G_OBJECT (text_view->priv->im_context), "input-hints", &hints, NULL); return hints; } /** * gtk_text_view_set_monospace: * @text_view: a #GtkTextView * @monospace: %TRUE to request monospace styling * * Sets the #GtkTextView:monospace property, which * indicates that the text view should use monospace * fonts. * * Since: 3.16 */ void gtk_text_view_set_monospace (GtkTextView *text_view, gboolean monospace) { GtkStyleContext *context; gboolean has_monospace; g_return_if_fail (GTK_IS_TEXT_VIEW (text_view)); context = gtk_widget_get_style_context (GTK_WIDGET (text_view)); has_monospace = gtk_style_context_has_class (context, GTK_STYLE_CLASS_MONOSPACE); if (has_monospace != monospace) { if (monospace) gtk_style_context_add_class (context, GTK_STYLE_CLASS_MONOSPACE); else gtk_style_context_remove_class (context, GTK_STYLE_CLASS_MONOSPACE); g_object_notify (G_OBJECT (text_view), "monospace"); } } /** * gtk_text_view_get_monospace: * @text_view: a #GtkTextView * * Gets the value of the #GtkTextView:monospace property. * * Return: %TRUE if monospace fonts are desired * * Since: 3.16 */ gboolean gtk_text_view_get_monospace (GtkTextView *text_view) { GtkStyleContext *context; g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE); context = gtk_widget_get_style_context (GTK_WIDGET (text_view)); return gtk_style_context_has_class (context, GTK_STYLE_CLASS_MONOSPACE); } static void gtk_text_view_insert_emoji (GtkTextView *text_view) { GtkWidget *chooser; GtkTextIter iter; GdkRectangle rect; GtkTextBuffer *buffer; if (gtk_widget_get_ancestor (GTK_WIDGET (text_view), GTK_TYPE_EMOJI_CHOOSER) != NULL) return; chooser = GTK_WIDGET (g_object_get_data (G_OBJECT (text_view), "gtk-emoji-chooser")); if (!chooser) { chooser = gtk_emoji_chooser_new (); g_object_set_data (G_OBJECT (text_view), "gtk-emoji-chooser", chooser); gtk_popover_set_relative_to (GTK_POPOVER (chooser), GTK_WIDGET (text_view)); g_signal_connect_swapped (chooser, "emoji-picked", G_CALLBACK (gtk_text_view_insert_at_cursor), text_view); } buffer = get_buffer (text_view); gtk_text_buffer_get_iter_at_mark (buffer, &iter, gtk_text_buffer_get_insert (buffer)); gtk_text_view_get_iter_location (text_view, &iter, (GdkRectangle *) &rect); gtk_text_view_buffer_to_window_coords (text_view, GTK_TEXT_WINDOW_TEXT, rect.x, rect.y, &rect.x, &rect.y); _text_window_to_widget_coords (text_view, &rect.x, &rect.y); gtk_popover_set_pointing_to (GTK_POPOVER (chooser), &rect); gtk_popover_popup (GTK_POPOVER (chooser)); }