1 /* -*- Mode: C; c-file-style: "gnu"; tab-width: 8 -*- */
2 /* GTK - The GIMP Toolkit
3 * gtktextview.c Copyright (C) 2000 Red Hat, Inc.
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 * Boston, MA 02111-1307, USA.
22 * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
23 * file for a list of people on the GTK+ Team. See the ChangeLog
24 * files for a list of changes. These files are distributed with
25 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
31 #define GTK_TEXT_USE_INTERNAL_UNSUPPORTED_API
32 #include "gtkbindings.h"
34 #include "gtkimagemenuitem.h"
37 #include "gtkmarshalers.h"
39 #include "gtkmenuitem.h"
40 #include "gtkseparatormenuitem.h"
41 #include "gtksettings.h"
43 #include "gtksizerequest.h"
44 #include "gtktextbufferrichtext.h"
45 #include "gtktextdisplay.h"
46 #include "gtktextview.h"
47 #include "gtkimmulticontext.h"
48 #include "gdk/gdkkeysyms.h"
49 #include "gtkprivate.h"
50 #include "gtktextutil.h"
51 #include "gtkwindow.h"
54 /* How scrolling, validation, exposes, etc. work.
56 * The expose_event handler has the invariant that the onscreen lines
57 * have been validated.
59 * There are two ways that onscreen lines can become invalid. The first
60 * is to change which lines are onscreen. This happens when the value
61 * of a scroll adjustment changes. So the code path begins in
62 * gtk_text_view_value_changed() and goes like this:
63 * - gdk_window_scroll() to reflect the new adjustment value
64 * - validate the lines that were moved onscreen
65 * - gdk_window_process_updates() to handle the exposes immediately
67 * The second way is that you get the "invalidated" signal from the layout,
68 * indicating that lines have become invalid. This code path begins in
69 * invalidated_handler() and goes like this:
70 * - install high-priority idle which does the rest of the steps
71 * - if a scroll is pending from scroll_to_mark(), do the scroll,
72 * jumping to the gtk_text_view_value_changed() code path
73 * - otherwise, validate the onscreen lines
74 * - DO NOT process updates
76 * In both cases, validating the onscreen lines can trigger a scroll
77 * due to maintaining the first_para on the top of the screen.
78 * If validation triggers a scroll, we jump to the top of the code path
79 * for value_changed, and bail out of the current code path.
81 * Also, in size_allocate, if we invalidate some lines from changing
82 * the layout width, we need to go ahead and run the high-priority idle,
83 * because GTK sends exposes right after doing the size allocates without
84 * returning to the main loop. This is also why the high-priority idle
85 * is at a higher priority than resizing.
90 #define DEBUG_VALIDATION_AND_SCROLLING
93 #ifdef DEBUG_VALIDATION_AND_SCROLLING
99 #define SCREEN_WIDTH(widget) text_window_get_width (GTK_TEXT_VIEW (widget)->priv->text_window)
100 #define SCREEN_HEIGHT(widget) text_window_get_height (GTK_TEXT_VIEW (widget)->priv->text_window)
102 #define SPACE_FOR_CURSOR 1
104 #define GTK_TEXT_VIEW_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_TEXT_VIEW, GtkTextViewPrivate))
106 typedef struct _GtkTextWindow GtkTextWindow;
107 typedef struct _GtkTextPendingScroll GtkTextPendingScroll;
109 struct _GtkTextViewPrivate
111 GtkTextLayout *layout;
112 GtkTextBuffer *buffer;
114 guint blink_time; /* time in msec the cursor has blinked since last user event */
117 GdkDevice *grab_device;
118 GdkDevice *dnd_device;
120 guint selection_drag_handler;
121 guint scroll_timeout;
123 GtkTextWindow *text_window;
124 GtkTextWindow *left_window;
125 GtkTextWindow *right_window;
126 GtkTextWindow *top_window;
127 GtkTextWindow *bottom_window;
129 GtkAdjustment *hadjustment;
130 GtkAdjustment *vadjustment;
132 gint xoffset; /* Offsets between widget coordinates and buffer coordinates */
134 gint width; /* Width and height of the buffer */
137 /* This is used to monitor the overall size request
138 * and decide whether we need to queue resizes when
139 * the buffer content changes.
141 * FIXME: This could be done in a simpler way by
142 * consulting the above width/height of the buffer + some
143 * padding values, however all of this request code needs
144 * to be changed to use GtkSizeRequestIface and deserves
147 GtkRequisition cached_size_request;
149 /* The virtual cursor position is normally the same as the
150 * actual (strong) cursor position, except in two circumstances:
152 * a) When the cursor is moved vertically with the keyboard
153 * b) When the text view is scrolled with the keyboard
155 * In case a), virtual_cursor_x is preserved, but not virtual_cursor_y
156 * In case b), both virtual_cursor_x and virtual_cursor_y are preserved.
158 gint virtual_cursor_x; /* -1 means use actual cursor position */
159 gint virtual_cursor_y; /* -1 means use actual cursor position */
161 GtkTextMark *first_para_mark; /* Mark at the beginning of the first onscreen paragraph */
162 gint first_para_pixels; /* Offset of top of screen in the first onscreen paragraph */
164 GtkTextMark *dnd_mark;
167 guint first_validate_idle; /* Idle to revalidate onscreen portion, runs before resize */
168 guint incremental_validate_idle; /* Idle to revalidate offscreen portions, runs after redraw */
170 GtkIMContext *im_context;
171 GtkWidget *popup_menu;
178 GtkTextPendingScroll *pending_scroll;
180 gint pending_place_cursor_button;
182 /* Default style settings */
183 gint pixels_above_lines;
184 gint pixels_below_lines;
185 gint pixels_inside_wrap;
186 GtkWrapMode wrap_mode;
187 GtkJustification justify;
194 guint overwrite_mode : 1;
195 guint cursor_visible : 1;
197 /* if we have reset the IM since the last character entered */
198 guint need_im_reset : 1;
200 guint accepts_tab : 1;
202 guint width_changed : 1;
204 /* debug flag - means that we've validated onscreen since the
205 * last "invalidate" signal from the layout
207 guint onscreen_validated : 1;
209 guint mouse_cursor_obscured : 1;
211 guint scroll_after_paste : 1;
214 struct _GtkTextPendingScroll
217 gdouble within_margin;
225 SET_SCROLL_ADJUSTMENTS,
239 TOGGLE_CURSOR_VISIBLE,
247 PROP_PIXELS_ABOVE_LINES,
248 PROP_PIXELS_BELOW_LINES,
249 PROP_PIXELS_INSIDE_WRAP,
264 static void gtk_text_view_destroy (GtkObject *object);
265 static void gtk_text_view_finalize (GObject *object);
266 static void gtk_text_view_set_property (GObject *object,
270 static void gtk_text_view_get_property (GObject *object,
274 static void gtk_text_view_size_request (GtkWidget *widget,
275 GtkRequisition *requisition);
276 static void gtk_text_view_size_allocate (GtkWidget *widget,
277 GtkAllocation *allocation);
278 static void gtk_text_view_realize (GtkWidget *widget);
279 static void gtk_text_view_unrealize (GtkWidget *widget);
280 static void gtk_text_view_style_set (GtkWidget *widget,
281 GtkStyle *previous_style);
282 static void gtk_text_view_direction_changed (GtkWidget *widget,
283 GtkTextDirection previous_direction);
284 static void gtk_text_view_grab_notify (GtkWidget *widget,
285 gboolean was_grabbed);
286 static void gtk_text_view_state_changed (GtkWidget *widget,
287 GtkStateType previous_state);
289 static gint gtk_text_view_event (GtkWidget *widget,
291 static gint gtk_text_view_key_press_event (GtkWidget *widget,
293 static gint gtk_text_view_key_release_event (GtkWidget *widget,
295 static gint gtk_text_view_button_press_event (GtkWidget *widget,
296 GdkEventButton *event);
297 static gint gtk_text_view_button_release_event (GtkWidget *widget,
298 GdkEventButton *event);
299 static gint gtk_text_view_focus_in_event (GtkWidget *widget,
300 GdkEventFocus *event);
301 static gint gtk_text_view_focus_out_event (GtkWidget *widget,
302 GdkEventFocus *event);
303 static gint gtk_text_view_motion_event (GtkWidget *widget,
304 GdkEventMotion *event);
305 static gint gtk_text_view_expose_event (GtkWidget *widget,
306 GdkEventExpose *expose);
307 static void gtk_text_view_draw_focus (GtkWidget *widget);
308 static gboolean gtk_text_view_focus (GtkWidget *widget,
309 GtkDirectionType direction);
310 static void gtk_text_view_move_focus (GtkWidget *widget,
311 GtkDirectionType direction_type);
312 static void gtk_text_view_select_all (GtkWidget *widget,
316 /* Source side drag signals */
317 static void gtk_text_view_drag_begin (GtkWidget *widget,
318 GdkDragContext *context);
319 static void gtk_text_view_drag_end (GtkWidget *widget,
320 GdkDragContext *context);
321 static void gtk_text_view_drag_data_get (GtkWidget *widget,
322 GdkDragContext *context,
323 GtkSelectionData *selection_data,
326 static void gtk_text_view_drag_data_delete (GtkWidget *widget,
327 GdkDragContext *context);
329 /* Target side drag signals */
330 static void gtk_text_view_drag_leave (GtkWidget *widget,
331 GdkDragContext *context,
333 static gboolean gtk_text_view_drag_motion (GtkWidget *widget,
334 GdkDragContext *context,
338 static gboolean gtk_text_view_drag_drop (GtkWidget *widget,
339 GdkDragContext *context,
343 static void gtk_text_view_drag_data_received (GtkWidget *widget,
344 GdkDragContext *context,
347 GtkSelectionData *selection_data,
351 static void gtk_text_view_set_scroll_adjustments (GtkTextView *text_view,
353 GtkAdjustment *vadj);
354 static gboolean gtk_text_view_popup_menu (GtkWidget *widget);
356 static void gtk_text_view_move_cursor (GtkTextView *text_view,
357 GtkMovementStep step,
359 gboolean extend_selection);
360 static gboolean gtk_text_view_move_viewport (GtkTextView *text_view,
363 static void gtk_text_view_set_anchor (GtkTextView *text_view);
364 static gboolean gtk_text_view_scroll_pages (GtkTextView *text_view,
366 gboolean extend_selection);
367 static gboolean gtk_text_view_scroll_hpages(GtkTextView *text_view,
369 gboolean extend_selection);
370 static void gtk_text_view_insert_at_cursor (GtkTextView *text_view,
372 static void gtk_text_view_delete_from_cursor (GtkTextView *text_view,
375 static void gtk_text_view_backspace (GtkTextView *text_view);
376 static void gtk_text_view_cut_clipboard (GtkTextView *text_view);
377 static void gtk_text_view_copy_clipboard (GtkTextView *text_view);
378 static void gtk_text_view_paste_clipboard (GtkTextView *text_view);
379 static void gtk_text_view_toggle_overwrite (GtkTextView *text_view);
380 static void gtk_text_view_toggle_cursor_visible (GtkTextView *text_view);
381 static void gtk_text_view_compat_move_focus(GtkTextView *text_view,
382 GtkDirectionType direction_type);
383 static void gtk_text_view_unselect (GtkTextView *text_view);
385 static void gtk_text_view_validate_onscreen (GtkTextView *text_view);
386 static void gtk_text_view_get_first_para_iter (GtkTextView *text_view,
388 static void gtk_text_view_update_layout_width (GtkTextView *text_view);
389 static void gtk_text_view_set_attributes_from_style (GtkTextView *text_view,
390 GtkTextAttributes *values,
392 static void gtk_text_view_ensure_layout (GtkTextView *text_view);
393 static void gtk_text_view_destroy_layout (GtkTextView *text_view);
394 static void gtk_text_view_check_keymap_direction (GtkTextView *text_view);
395 static void gtk_text_view_start_selection_drag (GtkTextView *text_view,
396 const GtkTextIter *iter,
397 GdkEventButton *event);
398 static gboolean gtk_text_view_end_selection_drag (GtkTextView *text_view);
399 static void gtk_text_view_start_selection_dnd (GtkTextView *text_view,
400 const GtkTextIter *iter,
401 GdkEventMotion *event);
402 static void gtk_text_view_check_cursor_blink (GtkTextView *text_view);
403 static void gtk_text_view_pend_cursor_blink (GtkTextView *text_view);
404 static void gtk_text_view_stop_cursor_blink (GtkTextView *text_view);
405 static void gtk_text_view_reset_blink_time (GtkTextView *text_view);
407 static void gtk_text_view_value_changed (GtkAdjustment *adj,
409 static void gtk_text_view_commit_handler (GtkIMContext *context,
411 GtkTextView *text_view);
412 static void gtk_text_view_commit_text (GtkTextView *text_view,
414 static void gtk_text_view_preedit_changed_handler (GtkIMContext *context,
415 GtkTextView *text_view);
416 static gboolean gtk_text_view_retrieve_surrounding_handler (GtkIMContext *context,
417 GtkTextView *text_view);
418 static gboolean gtk_text_view_delete_surrounding_handler (GtkIMContext *context,
421 GtkTextView *text_view);
423 static void gtk_text_view_mark_set_handler (GtkTextBuffer *buffer,
424 const GtkTextIter *location,
427 static void gtk_text_view_target_list_notify (GtkTextBuffer *buffer,
428 const GParamSpec *pspec,
430 static void gtk_text_view_paste_done_handler (GtkTextBuffer *buffer,
431 GtkClipboard *clipboard,
433 static void gtk_text_view_get_cursor_location (GtkTextView *text_view,
435 static void gtk_text_view_get_virtual_cursor_pos (GtkTextView *text_view,
439 static void gtk_text_view_set_virtual_cursor_pos (GtkTextView *text_view,
443 static GtkAdjustment* get_hadjustment (GtkTextView *text_view);
444 static GtkAdjustment* get_vadjustment (GtkTextView *text_view);
446 static void gtk_text_view_do_popup (GtkTextView *text_view,
447 GdkEventButton *event);
449 static void cancel_pending_scroll (GtkTextView *text_view);
450 static void gtk_text_view_queue_scroll (GtkTextView *text_view,
452 gdouble within_margin,
457 static gboolean gtk_text_view_flush_scroll (GtkTextView *text_view);
458 static void gtk_text_view_update_adjustments (GtkTextView *text_view);
459 static void gtk_text_view_invalidate (GtkTextView *text_view);
460 static void gtk_text_view_flush_first_validate (GtkTextView *text_view);
462 static void gtk_text_view_update_im_spot_location (GtkTextView *text_view);
464 /* Container methods */
465 static void gtk_text_view_add (GtkContainer *container,
467 static void gtk_text_view_remove (GtkContainer *container,
469 static void gtk_text_view_forall (GtkContainer *container,
470 gboolean include_internals,
471 GtkCallback callback,
472 gpointer callback_data);
474 /* FIXME probably need the focus methods. */
476 typedef struct _GtkTextViewChild GtkTextViewChild;
478 struct _GtkTextViewChild
482 GtkTextChildAnchor *anchor;
484 gint from_top_of_line;
485 gint from_left_of_buffer;
487 /* These are ignored if anchor != NULL */
488 GtkTextWindowType type;
493 static GtkTextViewChild* text_view_child_new_anchored (GtkWidget *child,
494 GtkTextChildAnchor *anchor,
495 GtkTextLayout *layout);
496 static GtkTextViewChild* text_view_child_new_window (GtkWidget *child,
497 GtkTextWindowType type,
500 static void text_view_child_free (GtkTextViewChild *child);
501 static void text_view_child_set_parent_window (GtkTextView *text_view,
502 GtkTextViewChild *child);
504 struct _GtkTextWindow
506 GtkTextWindowType type;
509 GdkWindow *bin_window;
510 GtkRequisition requisition;
511 GdkRectangle allocation;
514 static GtkTextWindow *text_window_new (GtkTextWindowType type,
517 gint height_request);
518 static void text_window_free (GtkTextWindow *win);
519 static void text_window_realize (GtkTextWindow *win,
521 static void text_window_unrealize (GtkTextWindow *win);
522 static void text_window_size_allocate (GtkTextWindow *win,
524 static void text_window_scroll (GtkTextWindow *win,
527 static void text_window_invalidate_rect (GtkTextWindow *win,
529 static void text_window_invalidate_cursors (GtkTextWindow *win);
531 static gint text_window_get_width (GtkTextWindow *win);
532 static gint text_window_get_height (GtkTextWindow *win);
535 static guint signals[LAST_SIGNAL] = { 0 };
537 G_DEFINE_TYPE (GtkTextView, gtk_text_view, GTK_TYPE_CONTAINER)
540 add_move_binding (GtkBindingSet *binding_set,
543 GtkMovementStep step,
546 g_assert ((modmask & GDK_SHIFT_MASK) == 0);
548 gtk_binding_entry_add_signal (binding_set, keyval, modmask,
552 G_TYPE_BOOLEAN, FALSE);
554 /* Selection-extending version */
555 gtk_binding_entry_add_signal (binding_set, keyval, modmask | GDK_SHIFT_MASK,
559 G_TYPE_BOOLEAN, TRUE);
563 gtk_text_view_class_init (GtkTextViewClass *klass)
565 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
566 GtkObjectClass *object_class = GTK_OBJECT_CLASS (klass);
567 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
568 GtkContainerClass *container_class = GTK_CONTAINER_CLASS (klass);
569 GtkBindingSet *binding_set;
571 /* Default handlers and virtual methods
573 gobject_class->set_property = gtk_text_view_set_property;
574 gobject_class->get_property = gtk_text_view_get_property;
576 object_class->destroy = gtk_text_view_destroy;
577 gobject_class->finalize = gtk_text_view_finalize;
579 widget_class->realize = gtk_text_view_realize;
580 widget_class->unrealize = gtk_text_view_unrealize;
581 widget_class->style_set = gtk_text_view_style_set;
582 widget_class->direction_changed = gtk_text_view_direction_changed;
583 widget_class->grab_notify = gtk_text_view_grab_notify;
584 widget_class->state_changed = gtk_text_view_state_changed;
585 widget_class->size_request = gtk_text_view_size_request;
586 widget_class->size_allocate = gtk_text_view_size_allocate;
587 widget_class->event = gtk_text_view_event;
588 widget_class->key_press_event = gtk_text_view_key_press_event;
589 widget_class->key_release_event = gtk_text_view_key_release_event;
590 widget_class->button_press_event = gtk_text_view_button_press_event;
591 widget_class->button_release_event = gtk_text_view_button_release_event;
592 widget_class->focus_in_event = gtk_text_view_focus_in_event;
593 widget_class->focus_out_event = gtk_text_view_focus_out_event;
594 widget_class->motion_notify_event = gtk_text_view_motion_event;
595 widget_class->expose_event = gtk_text_view_expose_event;
596 widget_class->focus = gtk_text_view_focus;
598 /* need to override the base class function via override_class_handler,
599 * because the signal slot is not available in GtkWidgetCLass
601 g_signal_override_class_handler ("move-focus",
603 G_CALLBACK (gtk_text_view_move_focus));
605 widget_class->drag_begin = gtk_text_view_drag_begin;
606 widget_class->drag_end = gtk_text_view_drag_end;
607 widget_class->drag_data_get = gtk_text_view_drag_data_get;
608 widget_class->drag_data_delete = gtk_text_view_drag_data_delete;
610 widget_class->drag_leave = gtk_text_view_drag_leave;
611 widget_class->drag_motion = gtk_text_view_drag_motion;
612 widget_class->drag_drop = gtk_text_view_drag_drop;
613 widget_class->drag_data_received = gtk_text_view_drag_data_received;
615 widget_class->popup_menu = gtk_text_view_popup_menu;
617 container_class->add = gtk_text_view_add;
618 container_class->remove = gtk_text_view_remove;
619 container_class->forall = gtk_text_view_forall;
621 klass->move_cursor = gtk_text_view_move_cursor;
622 klass->set_anchor = gtk_text_view_set_anchor;
623 klass->insert_at_cursor = gtk_text_view_insert_at_cursor;
624 klass->delete_from_cursor = gtk_text_view_delete_from_cursor;
625 klass->backspace = gtk_text_view_backspace;
626 klass->cut_clipboard = gtk_text_view_cut_clipboard;
627 klass->copy_clipboard = gtk_text_view_copy_clipboard;
628 klass->paste_clipboard = gtk_text_view_paste_clipboard;
629 klass->toggle_overwrite = gtk_text_view_toggle_overwrite;
630 klass->move_focus = gtk_text_view_compat_move_focus;
631 klass->set_scroll_adjustments = gtk_text_view_set_scroll_adjustments;
637 g_object_class_install_property (gobject_class,
638 PROP_PIXELS_ABOVE_LINES,
639 g_param_spec_int ("pixels-above-lines",
640 P_("Pixels Above Lines"),
641 P_("Pixels of blank space above paragraphs"),
645 GTK_PARAM_READWRITE));
647 g_object_class_install_property (gobject_class,
648 PROP_PIXELS_BELOW_LINES,
649 g_param_spec_int ("pixels-below-lines",
650 P_("Pixels Below Lines"),
651 P_("Pixels of blank space below paragraphs"),
655 GTK_PARAM_READWRITE));
657 g_object_class_install_property (gobject_class,
658 PROP_PIXELS_INSIDE_WRAP,
659 g_param_spec_int ("pixels-inside-wrap",
660 P_("Pixels Inside Wrap"),
661 P_("Pixels of blank space between wrapped lines in a paragraph"),
665 GTK_PARAM_READWRITE));
667 g_object_class_install_property (gobject_class,
669 g_param_spec_boolean ("editable",
671 P_("Whether the text can be modified by the user"),
673 GTK_PARAM_READWRITE));
675 g_object_class_install_property (gobject_class,
677 g_param_spec_enum ("wrap-mode",
679 P_("Whether to wrap lines never, at word boundaries, or at character boundaries"),
682 GTK_PARAM_READWRITE));
684 g_object_class_install_property (gobject_class,
686 g_param_spec_enum ("justification",
688 P_("Left, right, or center justification"),
689 GTK_TYPE_JUSTIFICATION,
691 GTK_PARAM_READWRITE));
693 g_object_class_install_property (gobject_class,
695 g_param_spec_int ("left-margin",
697 P_("Width of the left margin in pixels"),
701 GTK_PARAM_READWRITE));
703 g_object_class_install_property (gobject_class,
705 g_param_spec_int ("right-margin",
707 P_("Width of the right margin in pixels"),
711 GTK_PARAM_READWRITE));
713 g_object_class_install_property (gobject_class,
715 g_param_spec_int ("indent",
717 P_("Amount to indent the paragraph, in pixels"),
721 GTK_PARAM_READWRITE));
723 g_object_class_install_property (gobject_class,
725 g_param_spec_boxed ("tabs",
727 P_("Custom tabs for this text"),
728 PANGO_TYPE_TAB_ARRAY,
729 GTK_PARAM_READWRITE));
731 g_object_class_install_property (gobject_class,
733 g_param_spec_boolean ("cursor-visible",
734 P_("Cursor Visible"),
735 P_("If the insertion cursor is shown"),
737 GTK_PARAM_READWRITE));
739 g_object_class_install_property (gobject_class,
741 g_param_spec_object ("buffer",
743 P_("The buffer which is displayed"),
744 GTK_TYPE_TEXT_BUFFER,
745 GTK_PARAM_READWRITE));
747 g_object_class_install_property (gobject_class,
749 g_param_spec_boolean ("overwrite",
750 P_("Overwrite mode"),
751 P_("Whether entered text overwrites existing contents"),
753 GTK_PARAM_READWRITE));
755 g_object_class_install_property (gobject_class,
757 g_param_spec_boolean ("accepts-tab",
759 P_("Whether Tab will result in a tab character being entered"),
761 GTK_PARAM_READWRITE));
764 * GtkTextView:im-module:
766 * Which IM (input method) module should be used for this entry.
769 * Setting this to a non-%NULL value overrides the
770 * system-wide IM module setting. See the GtkSettings
771 * #GtkSettings:gtk-im-module property.
775 g_object_class_install_property (gobject_class,
777 g_param_spec_string ("im-module",
779 P_("Which IM module should be used"),
781 GTK_PARAM_READWRITE));
786 gtk_widget_class_install_style_property (widget_class,
787 g_param_spec_boxed ("error-underline-color",
788 P_("Error underline color"),
789 P_("Color with which to draw error-indication underlines"),
791 GTK_PARAM_READABLE));
798 * GtkTextView::move-cursor:
799 * @text_view: the object which received the signal
800 * @step: the granularity of the move, as a #GtkMovementStep
801 * @count: the number of @step units to move
802 * @extend_selection: %TRUE if the move should extend the selection
804 * The ::move-cursor signal is a
805 * <link linkend="keybinding-signals">keybinding signal</link>
806 * which gets emitted when the user initiates a cursor movement.
807 * If the cursor is not visible in @text_view, this signal causes
808 * the viewport to be moved instead.
810 * Applications should not connect to it, but may emit it with
811 * g_signal_emit_by_name() if they need to control the cursor
814 * The default bindings for this signal come in two variants,
815 * the variant with the Shift modifier extends the selection,
816 * the variant without the Shift modifer does not.
817 * There are too many key combinations to list them all here.
819 * <listitem>Arrow keys move by individual characters/lines</listitem>
820 * <listitem>Ctrl-arrow key combinations move by words/paragraphs</listitem>
821 * <listitem>Home/End keys move to the ends of the buffer</listitem>
822 * <listitem>PageUp/PageDown keys move vertically by pages</listitem>
823 * <listitem>Ctrl-PageUp/PageDown keys move horizontally by pages</listitem>
826 signals[MOVE_CURSOR] =
827 g_signal_new (I_("move-cursor"),
828 G_OBJECT_CLASS_TYPE (gobject_class),
829 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
830 G_STRUCT_OFFSET (GtkTextViewClass, move_cursor),
832 _gtk_marshal_VOID__ENUM_INT_BOOLEAN,
834 GTK_TYPE_MOVEMENT_STEP,
839 * GtkTextView::move-viewport:
840 * @text_view: the object which received the signal
841 * @step: the granularity of the move, as a #GtkMovementStep
842 * @count: the number of @step units to move
844 * The ::move-viewport signal is a
845 * <link linkend="keybinding-signals">keybinding signal</link>
846 * which can be bound to key combinations to allow the user
847 * to move the viewport, i.e. change what part of the text view
848 * is visible in a containing scrolled window.
850 * There are no default bindings for this signal.
852 signals[MOVE_VIEWPORT] =
853 g_signal_new_class_handler (I_("move-viewport"),
854 G_OBJECT_CLASS_TYPE (gobject_class),
855 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
856 G_CALLBACK (gtk_text_view_move_viewport),
858 _gtk_marshal_VOID__ENUM_INT,
860 GTK_TYPE_SCROLL_STEP,
864 * GtkTextView::set-anchor:
865 * @text_view: the object which received the signal
867 * The ::set-anchor signal is a
868 * <link linkend="keybinding-signals">keybinding signal</link>
869 * which gets emitted when the user initiates setting the "anchor"
870 * mark. The "anchor" mark gets placed at the same position as the
873 * This signal has no default bindings.
875 signals[SET_ANCHOR] =
876 g_signal_new (I_("set-anchor"),
877 G_OBJECT_CLASS_TYPE (gobject_class),
878 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
879 G_STRUCT_OFFSET (GtkTextViewClass, set_anchor),
881 _gtk_marshal_VOID__VOID,
885 * GtkTextView::insert-at-cursor:
886 * @text_view: the object which received the signal
887 * @string: the string to insert
889 * The ::insert-at-cursor signal is a
890 * <link linkend="keybinding-signals">keybinding signal</link>
891 * which gets emitted when the user initiates the insertion of a
892 * fixed string at the cursor.
894 * This signal has no default bindings.
896 signals[INSERT_AT_CURSOR] =
897 g_signal_new (I_("insert-at-cursor"),
898 G_OBJECT_CLASS_TYPE (gobject_class),
899 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
900 G_STRUCT_OFFSET (GtkTextViewClass, insert_at_cursor),
902 _gtk_marshal_VOID__STRING,
907 * GtkTextView::delete-from-cursor:
908 * @text_view: the object which received the signal
909 * @type: the granularity of the deletion, as a #GtkDeleteType
910 * @count: the number of @type units to delete
912 * The ::delete-from-cursor signal is a
913 * <link linkend="keybinding-signals">keybinding signal</link>
914 * which gets emitted when the user initiates a text deletion.
916 * If the @type is %GTK_DELETE_CHARS, GTK+ deletes the selection
917 * if there is one, otherwise it deletes the requested number
920 * The default bindings for this signal are
921 * Delete for deleting a character, Ctrl-Delete for
922 * deleting a word and Ctrl-Backspace for deleting a word
925 signals[DELETE_FROM_CURSOR] =
926 g_signal_new (I_("delete-from-cursor"),
927 G_OBJECT_CLASS_TYPE (gobject_class),
928 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
929 G_STRUCT_OFFSET (GtkTextViewClass, delete_from_cursor),
931 _gtk_marshal_VOID__ENUM_INT,
933 GTK_TYPE_DELETE_TYPE,
937 * GtkTextView::backspace:
938 * @text_view: the object which received the signal
940 * The ::backspace signal is a
941 * <link linkend="keybinding-signals">keybinding signal</link>
942 * which gets emitted when the user asks for it.
944 * The default bindings for this signal are
945 * Backspace and Shift-Backspace.
948 g_signal_new (I_("backspace"),
949 G_OBJECT_CLASS_TYPE (gobject_class),
950 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
951 G_STRUCT_OFFSET (GtkTextViewClass, backspace),
953 _gtk_marshal_VOID__VOID,
957 * GtkTextView::cut-clipboard:
958 * @text_view: the object which received the signal
960 * The ::cut-clipboard signal is a
961 * <link linkend="keybinding-signals">keybinding signal</link>
962 * which gets emitted to cut the selection to the clipboard.
964 * The default bindings for this signal are
965 * Ctrl-x and Shift-Delete.
967 signals[CUT_CLIPBOARD] =
968 g_signal_new (I_("cut-clipboard"),
969 G_OBJECT_CLASS_TYPE (gobject_class),
970 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
971 G_STRUCT_OFFSET (GtkTextViewClass, cut_clipboard),
973 _gtk_marshal_VOID__VOID,
977 * GtkTextView::copy-clipboard:
978 * @text_view: the object which received the signal
980 * The ::copy-clipboard signal is a
981 * <link linkend="keybinding-signals">keybinding signal</link>
982 * which gets emitted to copy the selection to the clipboard.
984 * The default bindings for this signal are
985 * Ctrl-c and Ctrl-Insert.
987 signals[COPY_CLIPBOARD] =
988 g_signal_new (I_("copy-clipboard"),
989 G_OBJECT_CLASS_TYPE (gobject_class),
990 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
991 G_STRUCT_OFFSET (GtkTextViewClass, copy_clipboard),
993 _gtk_marshal_VOID__VOID,
997 * GtkTextView::paste-clipboard:
998 * @text_view: the object which received the signal
1000 * The ::paste-clipboard signal is a
1001 * <link linkend="keybinding-signals">keybinding signal</link>
1002 * which gets emitted to paste the contents of the clipboard
1003 * into the text view.
1005 * The default bindings for this signal are
1006 * Ctrl-v and Shift-Insert.
1008 signals[PASTE_CLIPBOARD] =
1009 g_signal_new (I_("paste-clipboard"),
1010 G_OBJECT_CLASS_TYPE (gobject_class),
1011 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1012 G_STRUCT_OFFSET (GtkTextViewClass, paste_clipboard),
1014 _gtk_marshal_VOID__VOID,
1018 * GtkTextView::toggle-overwrite:
1019 * @text_view: the object which received the signal
1021 * The ::toggle-overwrite signal is a
1022 * <link linkend="keybinding-signals">keybinding signal</link>
1023 * which gets emitted to toggle the overwrite mode of the text view.
1025 * The default bindings for this signal is Insert.
1027 signals[TOGGLE_OVERWRITE] =
1028 g_signal_new (I_("toggle-overwrite"),
1029 G_OBJECT_CLASS_TYPE (gobject_class),
1030 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1031 G_STRUCT_OFFSET (GtkTextViewClass, toggle_overwrite),
1033 _gtk_marshal_VOID__VOID,
1037 * GtkTextView::set-scroll-adjustments
1038 * @horizontal: the horizontal #GtkAdjustment
1039 * @vertical: the vertical #GtkAdjustment
1041 * Set the scroll adjustments for the text view. Usually scrolled containers
1042 * like #GtkScrolledWindow will emit this signal to connect two instances
1043 * of #GtkScrollbar to the scroll directions of the #GtkTextView.
1045 signals[SET_SCROLL_ADJUSTMENTS] =
1046 g_signal_new (I_("set-scroll-adjustments"),
1047 G_OBJECT_CLASS_TYPE (gobject_class),
1048 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1049 G_STRUCT_OFFSET (GtkTextViewClass, set_scroll_adjustments),
1051 _gtk_marshal_VOID__OBJECT_OBJECT,
1053 GTK_TYPE_ADJUSTMENT,
1054 GTK_TYPE_ADJUSTMENT);
1055 widget_class->set_scroll_adjustments_signal = signals[SET_SCROLL_ADJUSTMENTS];
1058 * GtkTextView::populate-popup:
1059 * @entry: The text view on which the signal is emitted
1060 * @menu: the menu that is being populated
1062 * The ::populate-popup signal gets emitted before showing the
1063 * context menu of the text view.
1065 * If you need to add items to the context menu, connect
1066 * to this signal and append your menuitems to the @menu.
1068 signals[POPULATE_POPUP] =
1069 g_signal_new (I_("populate-popup"),
1070 G_OBJECT_CLASS_TYPE (gobject_class),
1072 G_STRUCT_OFFSET (GtkTextViewClass, populate_popup),
1074 _gtk_marshal_VOID__OBJECT,
1079 * GtkTextView::select-all:
1080 * @text_view: the object which received the signal
1081 * @select: %TRUE to select, %FALSE to unselect
1083 * The ::select-all signal is a
1084 * <link linkend="keybinding-signals">keybinding signal</link>
1085 * which gets emitted to select or unselect the complete
1086 * contents of the text view.
1088 * The default bindings for this signal are Ctrl-a and Ctrl-/
1089 * for selecting and Shift-Ctrl-a and Ctrl-\ for unselecting.
1091 signals[SELECT_ALL] =
1092 g_signal_new_class_handler (I_("select-all"),
1093 G_OBJECT_CLASS_TYPE (object_class),
1094 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1095 G_CALLBACK (gtk_text_view_select_all),
1097 _gtk_marshal_VOID__BOOLEAN,
1098 G_TYPE_NONE, 1, G_TYPE_BOOLEAN);
1101 * GtkTextView::toggle-cursor-visible:
1102 * @text_view: the object which received the signal
1104 * The ::toggle-cursor-visible signal is a
1105 * <link linkend="keybinding-signals">keybinding signal</link>
1106 * which gets emitted to toggle the visibility of the cursor.
1108 * The default binding for this signal is F7.
1110 signals[TOGGLE_CURSOR_VISIBLE] =
1111 g_signal_new_class_handler (I_("toggle-cursor-visible"),
1112 G_OBJECT_CLASS_TYPE (object_class),
1113 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1114 G_CALLBACK (gtk_text_view_toggle_cursor_visible),
1116 _gtk_marshal_VOID__VOID,
1120 * GtkTextView::preedit-changed:
1121 * @text_view: the object which received the signal
1122 * @preedit: the current preedit string
1124 * If an input method is used, the typed text will not immediately
1125 * be committed to the buffer. So if you are interested in the text,
1126 * connect to this signal.
1128 * This signal is only emitted if the text at the given position
1129 * is actually editable.
1133 signals[PREEDIT_CHANGED] =
1134 g_signal_new_class_handler (I_("preedit-changed"),
1135 G_OBJECT_CLASS_TYPE (object_class),
1136 G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
1139 _gtk_marshal_VOID__STRING,
1147 binding_set = gtk_binding_set_by_class (klass);
1149 /* Moving the insertion point */
1150 add_move_binding (binding_set, GDK_KEY_Right, 0,
1151 GTK_MOVEMENT_VISUAL_POSITIONS, 1);
1153 add_move_binding (binding_set, GDK_KEY_KP_Right, 0,
1154 GTK_MOVEMENT_VISUAL_POSITIONS, 1);
1156 add_move_binding (binding_set, GDK_KEY_Left, 0,
1157 GTK_MOVEMENT_VISUAL_POSITIONS, -1);
1159 add_move_binding (binding_set, GDK_KEY_KP_Left, 0,
1160 GTK_MOVEMENT_VISUAL_POSITIONS, -1);
1162 add_move_binding (binding_set, GDK_KEY_Right, GDK_CONTROL_MASK,
1163 GTK_MOVEMENT_WORDS, 1);
1165 add_move_binding (binding_set, GDK_KEY_KP_Right, GDK_CONTROL_MASK,
1166 GTK_MOVEMENT_WORDS, 1);
1168 add_move_binding (binding_set, GDK_KEY_Left, GDK_CONTROL_MASK,
1169 GTK_MOVEMENT_WORDS, -1);
1171 add_move_binding (binding_set, GDK_KEY_KP_Left, GDK_CONTROL_MASK,
1172 GTK_MOVEMENT_WORDS, -1);
1174 add_move_binding (binding_set, GDK_KEY_Up, 0,
1175 GTK_MOVEMENT_DISPLAY_LINES, -1);
1177 add_move_binding (binding_set, GDK_KEY_KP_Up, 0,
1178 GTK_MOVEMENT_DISPLAY_LINES, -1);
1180 add_move_binding (binding_set, GDK_KEY_Down, 0,
1181 GTK_MOVEMENT_DISPLAY_LINES, 1);
1183 add_move_binding (binding_set, GDK_KEY_KP_Down, 0,
1184 GTK_MOVEMENT_DISPLAY_LINES, 1);
1186 add_move_binding (binding_set, GDK_KEY_Up, GDK_CONTROL_MASK,
1187 GTK_MOVEMENT_PARAGRAPHS, -1);
1189 add_move_binding (binding_set, GDK_KEY_KP_Up, GDK_CONTROL_MASK,
1190 GTK_MOVEMENT_PARAGRAPHS, -1);
1192 add_move_binding (binding_set, GDK_KEY_Down, GDK_CONTROL_MASK,
1193 GTK_MOVEMENT_PARAGRAPHS, 1);
1195 add_move_binding (binding_set, GDK_KEY_KP_Down, GDK_CONTROL_MASK,
1196 GTK_MOVEMENT_PARAGRAPHS, 1);
1198 add_move_binding (binding_set, GDK_KEY_Home, 0,
1199 GTK_MOVEMENT_DISPLAY_LINE_ENDS, -1);
1201 add_move_binding (binding_set, GDK_KEY_KP_Home, 0,
1202 GTK_MOVEMENT_DISPLAY_LINE_ENDS, -1);
1204 add_move_binding (binding_set, GDK_KEY_End, 0,
1205 GTK_MOVEMENT_DISPLAY_LINE_ENDS, 1);
1207 add_move_binding (binding_set, GDK_KEY_KP_End, 0,
1208 GTK_MOVEMENT_DISPLAY_LINE_ENDS, 1);
1210 add_move_binding (binding_set, GDK_KEY_Home, GDK_CONTROL_MASK,
1211 GTK_MOVEMENT_BUFFER_ENDS, -1);
1213 add_move_binding (binding_set, GDK_KEY_KP_Home, GDK_CONTROL_MASK,
1214 GTK_MOVEMENT_BUFFER_ENDS, -1);
1216 add_move_binding (binding_set, GDK_KEY_End, GDK_CONTROL_MASK,
1217 GTK_MOVEMENT_BUFFER_ENDS, 1);
1219 add_move_binding (binding_set, GDK_KEY_KP_End, GDK_CONTROL_MASK,
1220 GTK_MOVEMENT_BUFFER_ENDS, 1);
1222 add_move_binding (binding_set, GDK_KEY_Page_Up, 0,
1223 GTK_MOVEMENT_PAGES, -1);
1225 add_move_binding (binding_set, GDK_KEY_KP_Page_Up, 0,
1226 GTK_MOVEMENT_PAGES, -1);
1228 add_move_binding (binding_set, GDK_KEY_Page_Down, 0,
1229 GTK_MOVEMENT_PAGES, 1);
1231 add_move_binding (binding_set, GDK_KEY_KP_Page_Down, 0,
1232 GTK_MOVEMENT_PAGES, 1);
1234 add_move_binding (binding_set, GDK_KEY_Page_Up, GDK_CONTROL_MASK,
1235 GTK_MOVEMENT_HORIZONTAL_PAGES, -1);
1237 add_move_binding (binding_set, GDK_KEY_KP_Page_Up, GDK_CONTROL_MASK,
1238 GTK_MOVEMENT_HORIZONTAL_PAGES, -1);
1240 add_move_binding (binding_set, GDK_KEY_Page_Down, GDK_CONTROL_MASK,
1241 GTK_MOVEMENT_HORIZONTAL_PAGES, 1);
1243 add_move_binding (binding_set, GDK_KEY_KP_Page_Down, GDK_CONTROL_MASK,
1244 GTK_MOVEMENT_HORIZONTAL_PAGES, 1);
1247 gtk_binding_entry_add_signal (binding_set, GDK_KEY_a, GDK_CONTROL_MASK,
1249 G_TYPE_BOOLEAN, TRUE);
1251 gtk_binding_entry_add_signal (binding_set, GDK_KEY_slash, GDK_CONTROL_MASK,
1253 G_TYPE_BOOLEAN, TRUE);
1256 gtk_binding_entry_add_signal (binding_set, GDK_KEY_backslash, GDK_CONTROL_MASK,
1258 G_TYPE_BOOLEAN, FALSE);
1260 gtk_binding_entry_add_signal (binding_set, GDK_KEY_a, GDK_SHIFT_MASK | GDK_CONTROL_MASK,
1262 G_TYPE_BOOLEAN, FALSE);
1265 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Delete, 0,
1266 "delete-from-cursor", 2,
1267 G_TYPE_ENUM, GTK_DELETE_CHARS,
1270 gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Delete, 0,
1271 "delete-from-cursor", 2,
1272 G_TYPE_ENUM, GTK_DELETE_CHARS,
1275 gtk_binding_entry_add_signal (binding_set, GDK_KEY_BackSpace, 0,
1278 /* Make this do the same as Backspace, to help with mis-typing */
1279 gtk_binding_entry_add_signal (binding_set, GDK_KEY_BackSpace, GDK_SHIFT_MASK,
1282 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Delete, GDK_CONTROL_MASK,
1283 "delete-from-cursor", 2,
1284 G_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
1287 gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Delete, GDK_CONTROL_MASK,
1288 "delete-from-cursor", 2,
1289 G_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
1292 gtk_binding_entry_add_signal (binding_set, GDK_KEY_BackSpace, GDK_CONTROL_MASK,
1293 "delete-from-cursor", 2,
1294 G_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
1297 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Delete, GDK_SHIFT_MASK | GDK_CONTROL_MASK,
1298 "delete-from-cursor", 2,
1299 G_TYPE_ENUM, GTK_DELETE_PARAGRAPH_ENDS,
1302 gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Delete, GDK_SHIFT_MASK | GDK_CONTROL_MASK,
1303 "delete-from-cursor", 2,
1304 G_TYPE_ENUM, GTK_DELETE_PARAGRAPH_ENDS,
1307 gtk_binding_entry_add_signal (binding_set, GDK_KEY_BackSpace, GDK_SHIFT_MASK | GDK_CONTROL_MASK,
1308 "delete-from-cursor", 2,
1309 G_TYPE_ENUM, GTK_DELETE_PARAGRAPH_ENDS,
1312 /* Cut/copy/paste */
1314 gtk_binding_entry_add_signal (binding_set, GDK_KEY_x, GDK_CONTROL_MASK,
1315 "cut-clipboard", 0);
1316 gtk_binding_entry_add_signal (binding_set, GDK_KEY_c, GDK_CONTROL_MASK,
1317 "copy-clipboard", 0);
1318 gtk_binding_entry_add_signal (binding_set, GDK_KEY_v, GDK_CONTROL_MASK,
1319 "paste-clipboard", 0);
1321 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Delete, GDK_SHIFT_MASK,
1322 "cut-clipboard", 0);
1323 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Insert, GDK_CONTROL_MASK,
1324 "copy-clipboard", 0);
1325 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Insert, GDK_SHIFT_MASK,
1326 "paste-clipboard", 0);
1329 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Insert, 0,
1330 "toggle-overwrite", 0);
1331 gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Insert, 0,
1332 "toggle-overwrite", 0);
1335 gtk_binding_entry_add_signal (binding_set, GDK_KEY_F7, 0,
1336 "toggle-cursor-visible", 0);
1338 /* Control-tab focus motion */
1339 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Tab, GDK_CONTROL_MASK,
1341 GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_FORWARD);
1342 gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Tab, GDK_CONTROL_MASK,
1344 GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_FORWARD);
1346 gtk_binding_entry_add_signal (binding_set, GDK_KEY_Tab, GDK_SHIFT_MASK | GDK_CONTROL_MASK,
1348 GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_BACKWARD);
1349 gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Tab, GDK_SHIFT_MASK | GDK_CONTROL_MASK,
1351 GTK_TYPE_DIRECTION_TYPE, GTK_DIR_TAB_BACKWARD);
1353 g_type_class_add_private (gobject_class, sizeof (GtkTextViewPrivate));
1357 gtk_text_view_init (GtkTextView *text_view)
1359 GtkWidget *widget = GTK_WIDGET (text_view);
1360 GtkTargetList *target_list;
1361 GtkTextViewPrivate *priv;
1363 text_view->priv = GTK_TEXT_VIEW_GET_PRIVATE (text_view);
1364 priv = text_view->priv;
1366 gtk_widget_set_can_focus (widget, TRUE);
1368 /* Set up default style */
1369 priv->wrap_mode = GTK_WRAP_NONE;
1370 priv->pixels_above_lines = 0;
1371 priv->pixels_below_lines = 0;
1372 priv->pixels_inside_wrap = 0;
1373 priv->justify = GTK_JUSTIFY_LEFT;
1374 priv->left_margin = 0;
1375 priv->right_margin = 0;
1378 priv->editable = TRUE;
1380 priv->scroll_after_paste = TRUE;
1382 gtk_drag_dest_set (widget, 0, NULL, 0,
1383 GDK_ACTION_COPY | GDK_ACTION_MOVE);
1385 target_list = gtk_target_list_new (NULL, 0);
1386 gtk_drag_dest_set_target_list (widget, target_list);
1387 gtk_target_list_unref (target_list);
1389 priv->virtual_cursor_x = -1;
1390 priv->virtual_cursor_y = -1;
1392 /* This object is completely private. No external entity can gain a reference
1393 * to it; so we create it here and destroy it in finalize ().
1395 priv->im_context = gtk_im_multicontext_new ();
1397 g_signal_connect (priv->im_context, "commit",
1398 G_CALLBACK (gtk_text_view_commit_handler), text_view);
1399 g_signal_connect (priv->im_context, "preedit-changed",
1400 G_CALLBACK (gtk_text_view_preedit_changed_handler), text_view);
1401 g_signal_connect (priv->im_context, "retrieve-surrounding",
1402 G_CALLBACK (gtk_text_view_retrieve_surrounding_handler), text_view);
1403 g_signal_connect (priv->im_context, "delete-surrounding",
1404 G_CALLBACK (gtk_text_view_delete_surrounding_handler), text_view);
1406 priv->cursor_visible = TRUE;
1408 priv->accepts_tab = TRUE;
1410 priv->text_window = text_window_new (GTK_TEXT_WINDOW_TEXT,
1413 priv->drag_start_x = -1;
1414 priv->drag_start_y = -1;
1416 priv->pending_place_cursor_button = 0;
1418 /* We handle all our own redrawing */
1419 gtk_widget_set_redraw_on_allocate (widget, FALSE);
1423 * gtk_text_view_new:
1425 * Creates a new #GtkTextView. If you don't call gtk_text_view_set_buffer()
1426 * before using the text view, an empty default buffer will be created
1427 * for you. Get the buffer with gtk_text_view_get_buffer(). If you want
1428 * to specify your own buffer, consider gtk_text_view_new_with_buffer().
1430 * Return value: a new #GtkTextView
1433 gtk_text_view_new (void)
1435 return g_object_new (GTK_TYPE_TEXT_VIEW, NULL);
1439 * gtk_text_view_new_with_buffer:
1440 * @buffer: a #GtkTextBuffer
1442 * Creates a new #GtkTextView widget displaying the buffer
1443 * @buffer. One buffer can be shared among many widgets.
1444 * @buffer may be %NULL to create a default buffer, in which case
1445 * this function is equivalent to gtk_text_view_new(). The
1446 * text view adds its own reference count to the buffer; it does not
1447 * take over an existing reference.
1449 * Return value: a new #GtkTextView.
1452 gtk_text_view_new_with_buffer (GtkTextBuffer *buffer)
1454 GtkTextView *text_view;
1456 text_view = (GtkTextView*)gtk_text_view_new ();
1458 gtk_text_view_set_buffer (text_view, buffer);
1460 return GTK_WIDGET (text_view);
1464 * gtk_text_view_set_buffer:
1465 * @text_view: a #GtkTextView
1466 * @buffer: (allow-none): a #GtkTextBuffer
1468 * Sets @buffer as the buffer being displayed by @text_view. The previous
1469 * buffer displayed by the text view is unreferenced, and a reference is
1470 * added to @buffer. If you owned a reference to @buffer before passing it
1471 * to this function, you must remove that reference yourself; #GtkTextView
1472 * will not "adopt" it.
1475 gtk_text_view_set_buffer (GtkTextView *text_view,
1476 GtkTextBuffer *buffer)
1478 GtkTextViewPrivate *priv;
1480 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1481 g_return_if_fail (buffer == NULL || GTK_IS_TEXT_BUFFER (buffer));
1483 priv = text_view->priv;
1485 if (priv->buffer == buffer)
1488 if (priv->buffer != NULL)
1490 /* Destroy all anchored children */
1494 copy = g_slist_copy (priv->children);
1496 while (tmp_list != NULL)
1498 GtkTextViewChild *vc = tmp_list->data;
1502 gtk_widget_destroy (vc->widget);
1503 /* vc may now be invalid! */
1506 tmp_list = g_slist_next (tmp_list);
1509 g_slist_free (copy);
1511 g_signal_handlers_disconnect_by_func (priv->buffer,
1512 gtk_text_view_mark_set_handler,
1514 g_signal_handlers_disconnect_by_func (priv->buffer,
1515 gtk_text_view_target_list_notify,
1517 g_signal_handlers_disconnect_by_func (priv->buffer,
1518 gtk_text_view_paste_done_handler,
1521 if (gtk_widget_get_realized (GTK_WIDGET (text_view)))
1523 GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view),
1524 GDK_SELECTION_PRIMARY);
1525 gtk_text_buffer_remove_selection_clipboard (priv->buffer, clipboard);
1529 gtk_text_layout_set_buffer (priv->layout, NULL);
1531 g_object_unref (priv->buffer);
1532 priv->dnd_mark = NULL;
1533 priv->first_para_mark = NULL;
1534 cancel_pending_scroll (text_view);
1537 priv->buffer = buffer;
1540 gtk_text_layout_set_buffer (priv->layout, buffer);
1546 g_object_ref (buffer);
1548 gtk_text_buffer_get_iter_at_offset (priv->buffer, &start, 0);
1550 priv->dnd_mark = gtk_text_buffer_create_mark (priv->buffer,
1554 priv->first_para_mark = gtk_text_buffer_create_mark (priv->buffer,
1558 priv->first_para_pixels = 0;
1561 g_signal_connect (priv->buffer, "mark-set",
1562 G_CALLBACK (gtk_text_view_mark_set_handler),
1564 g_signal_connect (priv->buffer, "notify::paste-target-list",
1565 G_CALLBACK (gtk_text_view_target_list_notify),
1567 g_signal_connect (priv->buffer, "paste-done",
1568 G_CALLBACK (gtk_text_view_paste_done_handler),
1571 gtk_text_view_target_list_notify (priv->buffer, NULL, text_view);
1573 if (gtk_widget_get_realized (GTK_WIDGET (text_view)))
1575 GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view),
1576 GDK_SELECTION_PRIMARY);
1577 gtk_text_buffer_add_selection_clipboard (priv->buffer, clipboard);
1581 g_object_notify (G_OBJECT (text_view), "buffer");
1583 if (gtk_widget_get_visible (GTK_WIDGET (text_view)))
1584 gtk_widget_queue_draw (GTK_WIDGET (text_view));
1586 DV(g_print ("Invalidating due to set_buffer\n"));
1587 gtk_text_view_invalidate (text_view);
1590 static GtkTextBuffer*
1591 get_buffer (GtkTextView *text_view)
1593 if (text_view->priv->buffer == NULL)
1596 b = gtk_text_buffer_new (NULL);
1597 gtk_text_view_set_buffer (text_view, b);
1601 return text_view->priv->buffer;
1605 * gtk_text_view_get_buffer:
1606 * @text_view: a #GtkTextView
1608 * Returns the #GtkTextBuffer being displayed by this text view.
1609 * The reference count on the buffer is not incremented; the caller
1610 * of this function won't own a new reference.
1612 * Return value: (transfer none): a #GtkTextBuffer
1615 gtk_text_view_get_buffer (GtkTextView *text_view)
1617 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
1619 return get_buffer (text_view);
1623 * gtk_text_view_get_iter_at_location:
1624 * @text_view: a #GtkTextView
1625 * @iter: (out): a #GtkTextIter
1626 * @x: x position, in buffer coordinates
1627 * @y: y position, in buffer coordinates
1629 * Retrieves the iterator at buffer coordinates @x and @y. Buffer
1630 * coordinates are coordinates for the entire buffer, not just the
1631 * currently-displayed portion. If you have coordinates from an
1632 * event, you have to convert those to buffer coordinates with
1633 * gtk_text_view_window_to_buffer_coords().
1636 gtk_text_view_get_iter_at_location (GtkTextView *text_view,
1641 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1642 g_return_if_fail (iter != NULL);
1644 gtk_text_view_ensure_layout (text_view);
1646 gtk_text_layout_get_iter_at_pixel (text_view->priv->layout,
1651 * gtk_text_view_get_iter_at_position:
1652 * @text_view: a #GtkTextView
1653 * @iter: (out): a #GtkTextIter
1654 * @trailing: (out) (allow-none): if non-%NULL, location to store an integer indicating where
1655 * in the grapheme the user clicked. It will either be
1656 * zero, or the number of characters in the grapheme.
1657 * 0 represents the trailing edge of the grapheme.
1658 * @x: x position, in buffer coordinates
1659 * @y: y position, in buffer coordinates
1661 * Retrieves the iterator pointing to the character at buffer
1662 * coordinates @x and @y. Buffer coordinates are coordinates for
1663 * the entire buffer, not just the currently-displayed portion.
1664 * If you have coordinates from an event, you have to convert
1665 * those to buffer coordinates with
1666 * gtk_text_view_window_to_buffer_coords().
1668 * Note that this is different from gtk_text_view_get_iter_at_location(),
1669 * which returns cursor locations, i.e. positions <emphasis>between</emphasis>
1675 gtk_text_view_get_iter_at_position (GtkTextView *text_view,
1681 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1682 g_return_if_fail (iter != NULL);
1684 gtk_text_view_ensure_layout (text_view);
1686 gtk_text_layout_get_iter_at_position (text_view->priv->layout,
1687 iter, trailing, x, y);
1691 * gtk_text_view_get_iter_location:
1692 * @text_view: a #GtkTextView
1693 * @iter: a #GtkTextIter
1694 * @location: (out): bounds of the character at @iter
1696 * Gets a rectangle which roughly contains the character at @iter.
1697 * The rectangle position is in buffer coordinates; use
1698 * gtk_text_view_buffer_to_window_coords() to convert these
1699 * coordinates to coordinates for one of the windows in the text view.
1702 gtk_text_view_get_iter_location (GtkTextView *text_view,
1703 const GtkTextIter *iter,
1704 GdkRectangle *location)
1706 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1707 g_return_if_fail (gtk_text_iter_get_buffer (iter) == get_buffer (text_view));
1709 gtk_text_view_ensure_layout (text_view);
1711 gtk_text_layout_get_iter_location (text_view->priv->layout, iter, location);
1715 * gtk_text_view_get_line_yrange:
1716 * @text_view: a #GtkTextView
1717 * @iter: a #GtkTextIter
1718 * @y: (out): return location for a y coordinate
1719 * @height: (out): return location for a height
1721 * Gets the y coordinate of the top of the line containing @iter,
1722 * and the height of the line. The coordinate is a buffer coordinate;
1723 * convert to window coordinates with gtk_text_view_buffer_to_window_coords().
1726 gtk_text_view_get_line_yrange (GtkTextView *text_view,
1727 const GtkTextIter *iter,
1731 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1732 g_return_if_fail (gtk_text_iter_get_buffer (iter) == get_buffer (text_view));
1734 gtk_text_view_ensure_layout (text_view);
1736 gtk_text_layout_get_line_yrange (text_view->priv->layout,
1743 * gtk_text_view_get_line_at_y:
1744 * @text_view: a #GtkTextView
1745 * @target_iter: (out): a #GtkTextIter
1746 * @y: a y coordinate
1747 * @line_top: (out): return location for top coordinate of the line
1749 * Gets the #GtkTextIter at the start of the line containing
1750 * the coordinate @y. @y is in buffer coordinates, convert from
1751 * window coordinates with gtk_text_view_window_to_buffer_coords().
1752 * If non-%NULL, @line_top will be filled with the coordinate of the top
1756 gtk_text_view_get_line_at_y (GtkTextView *text_view,
1757 GtkTextIter *target_iter,
1761 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1763 gtk_text_view_ensure_layout (text_view);
1765 gtk_text_layout_get_line_at_y (text_view->priv->layout,
1772 set_adjustment_clamped (GtkAdjustment *adj, gdouble val)
1774 DV (g_print (" Setting adj to raw value %g\n", val));
1776 /* We don't really want to clamp to upper; we want to clamp to
1777 upper - page_size which is the highest value the scrollbar
1778 will let us reach. */
1779 if (val > (adj->upper - adj->page_size))
1780 val = adj->upper - adj->page_size;
1782 if (val < adj->lower)
1785 if (val != adj->value)
1787 DV (g_print (" Setting adj to clamped value %g\n", val));
1788 gtk_adjustment_set_value (adj, val);
1796 * gtk_text_view_scroll_to_iter:
1797 * @text_view: a #GtkTextView
1798 * @iter: a #GtkTextIter
1799 * @within_margin: margin as a [0.0,0.5) fraction of screen size
1800 * @use_align: whether to use alignment arguments (if %FALSE,
1801 * just get the mark onscreen)
1802 * @xalign: horizontal alignment of mark within visible area
1803 * @yalign: vertical alignment of mark within visible area
1805 * Scrolls @text_view so that @iter is on the screen in the position
1806 * indicated by @xalign and @yalign. An alignment of 0.0 indicates
1807 * left or top, 1.0 indicates right or bottom, 0.5 means center.
1808 * If @use_align is %FALSE, the text scrolls the minimal distance to
1809 * get the mark onscreen, possibly not scrolling at all. The effective
1810 * screen for purposes of this function is reduced by a margin of size
1813 * Note that this function uses the currently-computed height of the
1814 * lines in the text buffer. Line heights are computed in an idle
1815 * handler; so this function may not have the desired effect if it's
1816 * called before the height computations. To avoid oddness, consider
1817 * using gtk_text_view_scroll_to_mark() which saves a point to be
1818 * scrolled to after line validation.
1820 * Return value: %TRUE if scrolling occurred
1823 gtk_text_view_scroll_to_iter (GtkTextView *text_view,
1825 gdouble within_margin,
1831 GdkRectangle screen;
1836 gboolean retval = FALSE;
1838 gint screen_xoffset, screen_yoffset;
1839 gint current_x_scroll, current_y_scroll;
1841 /* FIXME why don't we do the validate-at-scroll-destination thing
1842 * from flush_scroll in this function? I think it wasn't done before
1843 * because changed_handler was screwed up, but I could be wrong.
1846 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
1847 g_return_val_if_fail (iter != NULL, FALSE);
1848 g_return_val_if_fail (within_margin >= 0.0 && within_margin < 0.5, FALSE);
1849 g_return_val_if_fail (xalign >= 0.0 && xalign <= 1.0, FALSE);
1850 g_return_val_if_fail (yalign >= 0.0 && yalign <= 1.0, FALSE);
1852 widget = GTK_WIDGET (text_view);
1854 DV(g_print(G_STRLOC"\n"));
1856 gtk_text_layout_get_iter_location (text_view->priv->layout,
1860 DV (g_print (" target rect %d,%d %d x %d\n", rect.x, rect.y, rect.width, rect.height));
1862 current_x_scroll = text_view->priv->xoffset;
1863 current_y_scroll = text_view->priv->yoffset;
1865 screen.x = current_x_scroll;
1866 screen.y = current_y_scroll;
1867 screen.width = SCREEN_WIDTH (widget);
1868 screen.height = SCREEN_HEIGHT (widget);
1870 screen_xoffset = screen.width * within_margin;
1871 screen_yoffset = screen.height * within_margin;
1873 screen.x += screen_xoffset;
1874 screen.y += screen_yoffset;
1875 screen.width -= screen_xoffset * 2;
1876 screen.height -= screen_yoffset * 2;
1878 /* paranoia check */
1879 if (screen.width < 1)
1881 if (screen.height < 1)
1884 /* The -1 here ensures that we leave enough space to draw the cursor
1885 * when this function is used for horizontal scrolling.
1887 screen_right = screen.x + screen.width - 1;
1888 screen_bottom = screen.y + screen.height;
1890 /* The alignment affects the point in the target character that we
1891 * choose to align. If we're doing right/bottom alignment, we align
1892 * the right/bottom edge of the character the mark is at; if we're
1893 * doing left/top we align the left/top edge of the character; if
1894 * we're doing center alignment we align the center of the
1898 /* Vertical scroll */
1901 scroll_dest = current_y_scroll;
1905 scroll_dest = rect.y + (rect.height * yalign) - (screen.height * yalign);
1907 /* if scroll_dest < screen.y, we move a negative increment (up),
1908 * else a positive increment (down)
1910 scroll_inc = scroll_dest - screen.y + screen_yoffset;
1914 /* move minimum to get onscreen */
1915 if (rect.y < screen.y)
1917 scroll_dest = rect.y;
1918 scroll_inc = scroll_dest - screen.y - screen_yoffset;
1920 else if ((rect.y + rect.height) > screen_bottom)
1922 scroll_dest = rect.y + rect.height;
1923 scroll_inc = scroll_dest - screen_bottom + screen_yoffset;
1927 if (scroll_inc != 0)
1929 retval = set_adjustment_clamped (get_vadjustment (text_view),
1930 current_y_scroll + scroll_inc);
1932 DV (g_print (" vert increment %d\n", scroll_inc));
1935 /* Horizontal scroll */
1938 scroll_dest = current_x_scroll;
1942 scroll_dest = rect.x + (rect.width * xalign) - (screen.width * xalign);
1944 /* if scroll_dest < screen.y, we move a negative increment (left),
1945 * else a positive increment (right)
1947 scroll_inc = scroll_dest - screen.x + screen_xoffset;
1951 /* move minimum to get onscreen */
1952 if (rect.x < screen.x)
1954 scroll_dest = rect.x;
1955 scroll_inc = scroll_dest - screen.x - screen_xoffset;
1957 else if ((rect.x + rect.width) > screen_right)
1959 scroll_dest = rect.x + rect.width;
1960 scroll_inc = scroll_dest - screen_right + screen_xoffset;
1964 if (scroll_inc != 0)
1966 retval = set_adjustment_clamped (get_hadjustment (text_view),
1967 current_x_scroll + scroll_inc);
1969 DV (g_print (" horiz increment %d\n", scroll_inc));
1974 DV(g_print (">Actually scrolled ("G_STRLOC")\n"));
1978 DV(g_print (">Didn't end up scrolling ("G_STRLOC")\n"));
1985 free_pending_scroll (GtkTextPendingScroll *scroll)
1987 if (!gtk_text_mark_get_deleted (scroll->mark))
1988 gtk_text_buffer_delete_mark (gtk_text_mark_get_buffer (scroll->mark),
1990 g_object_unref (scroll->mark);
1995 cancel_pending_scroll (GtkTextView *text_view)
1997 if (text_view->priv->pending_scroll)
1999 free_pending_scroll (text_view->priv->pending_scroll);
2000 text_view->priv->pending_scroll = NULL;
2005 gtk_text_view_queue_scroll (GtkTextView *text_view,
2007 gdouble within_margin,
2013 GtkTextPendingScroll *scroll;
2015 DV(g_print(G_STRLOC"\n"));
2017 scroll = g_new (GtkTextPendingScroll, 1);
2019 scroll->within_margin = within_margin;
2020 scroll->use_align = use_align;
2021 scroll->xalign = xalign;
2022 scroll->yalign = yalign;
2024 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, mark);
2026 scroll->mark = gtk_text_buffer_create_mark (get_buffer (text_view),
2029 gtk_text_mark_get_left_gravity (mark));
2031 g_object_ref (scroll->mark);
2033 cancel_pending_scroll (text_view);
2035 text_view->priv->pending_scroll = scroll;
2039 gtk_text_view_flush_scroll (GtkTextView *text_view)
2041 GtkAllocation allocation;
2043 GtkTextPendingScroll *scroll;
2047 widget = GTK_WIDGET (text_view);
2049 DV(g_print(G_STRLOC"\n"));
2051 if (text_view->priv->pending_scroll == NULL)
2053 DV (g_print ("in flush scroll, no pending scroll\n"));
2057 scroll = text_view->priv->pending_scroll;
2059 /* avoid recursion */
2060 text_view->priv->pending_scroll = NULL;
2062 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, scroll->mark);
2064 /* Validate area around the scroll destination, so the adjustment
2065 * can meaningfully point into that area. We must validate
2066 * enough area to be sure that after we scroll, everything onscreen
2067 * is valid; otherwise, validation will maintain the first para
2068 * in one place, but may push the target iter off the bottom of
2071 DV(g_print (">Validating scroll destination ("G_STRLOC")\n"));
2072 gtk_widget_get_allocation (widget, &allocation);
2073 gtk_text_layout_validate_yrange (text_view->priv->layout, &iter,
2074 -(allocation.height * 2),
2075 allocation.height * 2);
2077 DV(g_print (">Done validating scroll destination ("G_STRLOC")\n"));
2079 /* Ensure we have updated width/height */
2080 gtk_text_view_update_adjustments (text_view);
2082 retval = gtk_text_view_scroll_to_iter (text_view,
2084 scroll->within_margin,
2089 free_pending_scroll (scroll);
2095 gtk_text_view_set_adjustment_upper (GtkAdjustment *adj, gdouble upper)
2097 if (upper != adj->upper)
2099 gdouble min = MAX (0.0, upper - adj->page_size);
2100 gboolean value_changed = FALSE;
2104 if (adj->value > min)
2107 value_changed = TRUE;
2110 gtk_adjustment_changed (adj);
2111 DV(g_print(">Changed adj upper to %g ("G_STRLOC")\n", upper));
2115 DV(g_print(">Changed adj value because upper decreased ("G_STRLOC")\n"));
2116 gtk_adjustment_value_changed (adj);
2122 gtk_text_view_update_adjustments (GtkTextView *text_view)
2124 GtkTextViewPrivate *priv;
2125 gint width = 0, height = 0;
2127 DV(g_print(">Updating adjustments ("G_STRLOC")\n"));
2129 priv = text_view->priv;
2132 gtk_text_layout_get_size (priv->layout, &width, &height);
2134 /* Make room for the cursor after the last character in the widest line */
2135 width += SPACE_FOR_CURSOR;
2137 if (priv->width != width || priv->height != height)
2139 if (priv->width != width)
2140 priv->width_changed = TRUE;
2142 priv->width = width;
2143 priv->height = height;
2145 gtk_text_view_set_adjustment_upper (get_hadjustment (text_view),
2146 MAX (SCREEN_WIDTH (text_view), width));
2147 gtk_text_view_set_adjustment_upper (get_vadjustment (text_view),
2148 MAX (SCREEN_HEIGHT (text_view), height));
2150 /* hadj/vadj exist since we called get_hadjustment/get_vadjustment above */
2152 /* Set up the step sizes; we'll say that a page is
2153 our allocation minus one step, and a step is
2154 1/10 of our allocation. */
2155 priv->hadjustment->step_increment =
2156 SCREEN_WIDTH (text_view) / 10.0;
2157 priv->hadjustment->page_increment =
2158 SCREEN_WIDTH (text_view) * 0.9;
2160 priv->vadjustment->step_increment =
2161 SCREEN_HEIGHT (text_view) / 10.0;
2162 priv->vadjustment->page_increment =
2163 SCREEN_HEIGHT (text_view) * 0.9;
2165 gtk_adjustment_changed (get_hadjustment (text_view));
2166 gtk_adjustment_changed (get_vadjustment (text_view));
2171 gtk_text_view_update_layout_width (GtkTextView *text_view)
2173 DV(g_print(">Updating layout width ("G_STRLOC")\n"));
2175 gtk_text_view_ensure_layout (text_view);
2177 gtk_text_layout_set_screen_width (text_view->priv->layout,
2178 MAX (1, SCREEN_WIDTH (text_view) - SPACE_FOR_CURSOR));
2182 gtk_text_view_update_im_spot_location (GtkTextView *text_view)
2186 if (text_view->priv->layout == NULL)
2189 gtk_text_view_get_cursor_location (text_view, &area);
2191 area.x -= text_view->priv->xoffset;
2192 area.y -= text_view->priv->yoffset;
2194 /* Width returned by Pango indicates direction of cursor,
2195 * by it's sign more than the size of cursor.
2199 gtk_im_context_set_cursor_location (text_view->priv->im_context, &area);
2203 do_update_im_spot_location (gpointer text_view)
2205 GtkTextViewPrivate *priv;
2207 priv = GTK_TEXT_VIEW (text_view)->priv;
2208 priv->im_spot_idle = 0;
2210 gtk_text_view_update_im_spot_location (text_view);
2215 queue_update_im_spot_location (GtkTextView *text_view)
2217 GtkTextViewPrivate *priv;
2219 priv = text_view->priv;
2221 /* Use priority a little higher than GTK_TEXT_VIEW_PRIORITY_VALIDATE,
2222 * so we don't wait until the entire buffer has been validated. */
2223 if (!priv->im_spot_idle)
2224 priv->im_spot_idle = gdk_threads_add_idle_full (GTK_TEXT_VIEW_PRIORITY_VALIDATE - 1,
2225 do_update_im_spot_location,
2231 flush_update_im_spot_location (GtkTextView *text_view)
2233 GtkTextViewPrivate *priv;
2235 priv = text_view->priv;
2237 if (priv->im_spot_idle)
2239 g_source_remove (priv->im_spot_idle);
2240 priv->im_spot_idle = 0;
2241 gtk_text_view_update_im_spot_location (text_view);
2246 * gtk_text_view_scroll_to_mark:
2247 * @text_view: a #GtkTextView
2248 * @mark: a #GtkTextMark
2249 * @within_margin: margin as a [0.0,0.5) fraction of screen size
2250 * @use_align: whether to use alignment arguments (if %FALSE, just
2251 * get the mark onscreen)
2252 * @xalign: horizontal alignment of mark within visible area
2253 * @yalign: vertical alignment of mark within visible area
2255 * Scrolls @text_view so that @mark is on the screen in the position
2256 * indicated by @xalign and @yalign. An alignment of 0.0 indicates
2257 * left or top, 1.0 indicates right or bottom, 0.5 means center.
2258 * If @use_align is %FALSE, the text scrolls the minimal distance to
2259 * get the mark onscreen, possibly not scrolling at all. The effective
2260 * screen for purposes of this function is reduced by a margin of size
2264 gtk_text_view_scroll_to_mark (GtkTextView *text_view,
2266 gdouble within_margin,
2271 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2272 g_return_if_fail (GTK_IS_TEXT_MARK (mark));
2273 g_return_if_fail (within_margin >= 0.0 && within_margin < 0.5);
2274 g_return_if_fail (xalign >= 0.0 && xalign <= 1.0);
2275 g_return_if_fail (yalign >= 0.0 && yalign <= 1.0);
2277 /* We need to verify that the buffer contains the mark, otherwise this
2278 * can lead to data structure corruption later on.
2280 g_return_if_fail (get_buffer (text_view) == gtk_text_mark_get_buffer (mark));
2282 gtk_text_view_queue_scroll (text_view, mark,
2288 /* If no validation is pending, we need to go ahead and force an
2291 if (text_view->priv->layout &&
2292 gtk_text_layout_is_valid (text_view->priv->layout))
2293 gtk_text_view_flush_scroll (text_view);
2297 * gtk_text_view_scroll_mark_onscreen:
2298 * @text_view: a #GtkTextView
2299 * @mark: a mark in the buffer for @text_view
2301 * Scrolls @text_view the minimum distance such that @mark is contained
2302 * within the visible area of the widget.
2305 gtk_text_view_scroll_mark_onscreen (GtkTextView *text_view,
2308 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2309 g_return_if_fail (GTK_IS_TEXT_MARK (mark));
2311 /* We need to verify that the buffer contains the mark, otherwise this
2312 * can lead to data structure corruption later on.
2314 g_return_if_fail (get_buffer (text_view) == gtk_text_mark_get_buffer (mark));
2316 gtk_text_view_scroll_to_mark (text_view, mark, 0.0, FALSE, 0.0, 0.0);
2320 clamp_iter_onscreen (GtkTextView *text_view, GtkTextIter *iter)
2322 GdkRectangle visible_rect;
2323 gtk_text_view_get_visible_rect (text_view, &visible_rect);
2325 return gtk_text_layout_clamp_iter_to_vrange (text_view->priv->layout, iter,
2327 visible_rect.y + visible_rect.height);
2331 * gtk_text_view_move_mark_onscreen:
2332 * @text_view: a #GtkTextView
2333 * @mark: a #GtkTextMark
2335 * Moves a mark within the buffer so that it's
2336 * located within the currently-visible text area.
2338 * Return value: %TRUE if the mark moved (wasn't already onscreen)
2341 gtk_text_view_move_mark_onscreen (GtkTextView *text_view,
2346 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
2347 g_return_val_if_fail (mark != NULL, FALSE);
2349 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, mark);
2351 if (clamp_iter_onscreen (text_view, &iter))
2353 gtk_text_buffer_move_mark (get_buffer (text_view), mark, &iter);
2361 * gtk_text_view_get_visible_rect:
2362 * @text_view: a #GtkTextView
2363 * @visible_rect: rectangle to fill
2365 * Fills @visible_rect with the currently-visible
2366 * region of the buffer, in buffer coordinates. Convert to window coordinates
2367 * with gtk_text_view_buffer_to_window_coords().
2370 gtk_text_view_get_visible_rect (GtkTextView *text_view,
2371 GdkRectangle *visible_rect)
2375 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2377 widget = GTK_WIDGET (text_view);
2381 visible_rect->x = text_view->priv->xoffset;
2382 visible_rect->y = text_view->priv->yoffset;
2383 visible_rect->width = SCREEN_WIDTH (widget);
2384 visible_rect->height = SCREEN_HEIGHT (widget);
2386 DV(g_print(" visible rect: %d,%d %d x %d\n",
2389 visible_rect->width,
2390 visible_rect->height));
2395 * gtk_text_view_set_wrap_mode:
2396 * @text_view: a #GtkTextView
2397 * @wrap_mode: a #GtkWrapMode
2399 * Sets the line wrapping for the view.
2402 gtk_text_view_set_wrap_mode (GtkTextView *text_view,
2403 GtkWrapMode wrap_mode)
2405 GtkTextViewPrivate *priv;
2407 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2409 priv = text_view->priv;
2411 if (priv->wrap_mode != wrap_mode)
2413 priv->wrap_mode = wrap_mode;
2417 priv->layout->default_style->wrap_mode = wrap_mode;
2418 gtk_text_layout_default_style_changed (priv->layout);
2422 g_object_notify (G_OBJECT (text_view), "wrap-mode");
2426 * gtk_text_view_get_wrap_mode:
2427 * @text_view: a #GtkTextView
2429 * Gets the line wrapping for the view.
2431 * Return value: the line wrap setting
2434 gtk_text_view_get_wrap_mode (GtkTextView *text_view)
2436 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), GTK_WRAP_NONE);
2438 return text_view->priv->wrap_mode;
2442 * gtk_text_view_set_editable:
2443 * @text_view: a #GtkTextView
2444 * @setting: whether it's editable
2446 * Sets the default editability of the #GtkTextView. You can override
2447 * this default setting with tags in the buffer, using the "editable"
2448 * attribute of tags.
2451 gtk_text_view_set_editable (GtkTextView *text_view,
2454 GtkTextViewPrivate *priv;
2456 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2458 priv = text_view->priv;
2459 setting = setting != FALSE;
2461 if (priv->editable != setting)
2465 gtk_text_view_reset_im_context(text_view);
2466 if (gtk_widget_has_focus (GTK_WIDGET (text_view)))
2467 gtk_im_context_focus_out (priv->im_context);
2470 priv->editable = setting;
2472 if (setting && gtk_widget_has_focus (GTK_WIDGET (text_view)))
2473 gtk_im_context_focus_in (priv->im_context);
2477 gtk_text_layout_set_overwrite_mode (priv->layout,
2478 priv->overwrite_mode && priv->editable);
2479 priv->layout->default_style->editable = priv->editable;
2480 gtk_text_layout_default_style_changed (priv->layout);
2483 g_object_notify (G_OBJECT (text_view), "editable");
2488 * gtk_text_view_get_editable:
2489 * @text_view: a #GtkTextView
2491 * Returns the default editability of the #GtkTextView. Tags in the
2492 * buffer may override this setting for some ranges of text.
2494 * Return value: whether text is editable by default
2497 gtk_text_view_get_editable (GtkTextView *text_view)
2499 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
2501 return text_view->priv->editable;
2505 * gtk_text_view_set_pixels_above_lines:
2506 * @text_view: a #GtkTextView
2507 * @pixels_above_lines: pixels above paragraphs
2509 * Sets the default number of blank pixels above paragraphs in @text_view.
2510 * Tags in the buffer for @text_view may override the defaults.
2513 gtk_text_view_set_pixels_above_lines (GtkTextView *text_view,
2514 gint pixels_above_lines)
2516 GtkTextViewPrivate *priv;
2518 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2520 priv = text_view->priv;
2522 if (priv->pixels_above_lines != pixels_above_lines)
2524 priv->pixels_above_lines = pixels_above_lines;
2528 priv->layout->default_style->pixels_above_lines = pixels_above_lines;
2529 gtk_text_layout_default_style_changed (priv->layout);
2532 g_object_notify (G_OBJECT (text_view), "pixels-above-lines");
2537 * gtk_text_view_get_pixels_above_lines:
2538 * @text_view: a #GtkTextView
2540 * Gets the default number of pixels to put above paragraphs.
2542 * Return value: default number of pixels above paragraphs
2545 gtk_text_view_get_pixels_above_lines (GtkTextView *text_view)
2547 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2549 return text_view->priv->pixels_above_lines;
2553 * gtk_text_view_set_pixels_below_lines:
2554 * @text_view: a #GtkTextView
2555 * @pixels_below_lines: pixels below paragraphs
2557 * Sets the default number of pixels of blank space
2558 * to put below paragraphs in @text_view. May be overridden
2559 * by tags applied to @text_view's buffer.
2562 gtk_text_view_set_pixels_below_lines (GtkTextView *text_view,
2563 gint pixels_below_lines)
2565 GtkTextViewPrivate *priv;
2567 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2569 priv = text_view->priv;
2571 if (priv->pixels_below_lines != pixels_below_lines)
2573 priv->pixels_below_lines = pixels_below_lines;
2577 priv->layout->default_style->pixels_below_lines = pixels_below_lines;
2578 gtk_text_layout_default_style_changed (priv->layout);
2581 g_object_notify (G_OBJECT (text_view), "pixels-below-lines");
2586 * gtk_text_view_get_pixels_below_lines:
2587 * @text_view: a #GtkTextView
2589 * Gets the value set by gtk_text_view_set_pixels_below_lines().
2591 * Return value: default number of blank pixels below paragraphs
2594 gtk_text_view_get_pixels_below_lines (GtkTextView *text_view)
2596 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2598 return text_view->priv->pixels_below_lines;
2602 * gtk_text_view_set_pixels_inside_wrap:
2603 * @text_view: a #GtkTextView
2604 * @pixels_inside_wrap: default number of pixels between wrapped lines
2606 * Sets the default number of pixels of blank space to leave between
2607 * display/wrapped lines within a paragraph. May be overridden by
2608 * tags in @text_view's buffer.
2611 gtk_text_view_set_pixels_inside_wrap (GtkTextView *text_view,
2612 gint pixels_inside_wrap)
2614 GtkTextViewPrivate *priv;
2616 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2618 priv = text_view->priv;
2620 if (priv->pixels_inside_wrap != pixels_inside_wrap)
2622 priv->pixels_inside_wrap = pixels_inside_wrap;
2626 priv->layout->default_style->pixels_inside_wrap = pixels_inside_wrap;
2627 gtk_text_layout_default_style_changed (priv->layout);
2630 g_object_notify (G_OBJECT (text_view), "pixels-inside-wrap");
2635 * gtk_text_view_get_pixels_inside_wrap:
2636 * @text_view: a #GtkTextView
2638 * Gets the value set by gtk_text_view_set_pixels_inside_wrap().
2640 * Return value: default number of pixels of blank space between wrapped lines
2643 gtk_text_view_get_pixels_inside_wrap (GtkTextView *text_view)
2645 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2647 return text_view->priv->pixels_inside_wrap;
2651 * gtk_text_view_set_justification:
2652 * @text_view: a #GtkTextView
2653 * @justification: justification
2655 * Sets the default justification of text in @text_view.
2656 * Tags in the view's buffer may override the default.
2660 gtk_text_view_set_justification (GtkTextView *text_view,
2661 GtkJustification justification)
2663 GtkTextViewPrivate *priv;
2665 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2667 priv = text_view->priv;
2669 if (priv->justify != justification)
2671 priv->justify = justification;
2675 priv->layout->default_style->justification = justification;
2676 gtk_text_layout_default_style_changed (priv->layout);
2679 g_object_notify (G_OBJECT (text_view), "justification");
2684 * gtk_text_view_get_justification:
2685 * @text_view: a #GtkTextView
2687 * Gets the default justification of paragraphs in @text_view.
2688 * Tags in the buffer may override the default.
2690 * Return value: default justification
2693 gtk_text_view_get_justification (GtkTextView *text_view)
2695 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), GTK_JUSTIFY_LEFT);
2697 return text_view->priv->justify;
2701 * gtk_text_view_set_left_margin:
2702 * @text_view: a #GtkTextView
2703 * @left_margin: left margin in pixels
2705 * Sets the default left margin for text in @text_view.
2706 * Tags in the buffer may override the default.
2709 gtk_text_view_set_left_margin (GtkTextView *text_view,
2712 GtkTextViewPrivate *priv;
2714 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2716 priv = text_view->priv;
2718 if (priv->left_margin != left_margin)
2720 priv->left_margin = left_margin;
2724 priv->layout->default_style->left_margin = left_margin;
2725 gtk_text_layout_default_style_changed (priv->layout);
2728 g_object_notify (G_OBJECT (text_view), "left-margin");
2733 * gtk_text_view_get_left_margin:
2734 * @text_view: a #GtkTextView
2736 * Gets the default left margin size of paragraphs in the @text_view.
2737 * Tags in the buffer may override the default.
2739 * Return value: left margin in pixels
2742 gtk_text_view_get_left_margin (GtkTextView *text_view)
2744 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2746 return text_view->priv->left_margin;
2750 * gtk_text_view_set_right_margin:
2751 * @text_view: a #GtkTextView
2752 * @right_margin: right margin in pixels
2754 * Sets the default right margin for text in the text view.
2755 * Tags in the buffer may override the default.
2758 gtk_text_view_set_right_margin (GtkTextView *text_view,
2761 GtkTextViewPrivate *priv = text_view->priv;
2763 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2765 if (priv->right_margin != right_margin)
2767 priv->right_margin = right_margin;
2771 priv->layout->default_style->right_margin = right_margin;
2772 gtk_text_layout_default_style_changed (priv->layout);
2775 g_object_notify (G_OBJECT (text_view), "right-margin");
2780 * gtk_text_view_get_right_margin:
2781 * @text_view: a #GtkTextView
2783 * Gets the default right margin for text in @text_view. Tags
2784 * in the buffer may override the default.
2786 * Return value: right margin in pixels
2789 gtk_text_view_get_right_margin (GtkTextView *text_view)
2791 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2793 return text_view->priv->right_margin;
2797 * gtk_text_view_set_indent:
2798 * @text_view: a #GtkTextView
2799 * @indent: indentation in pixels
2801 * Sets the default indentation for paragraphs in @text_view.
2802 * Tags in the buffer may override the default.
2805 gtk_text_view_set_indent (GtkTextView *text_view,
2808 GtkTextViewPrivate *priv;
2810 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2812 priv = text_view->priv;
2814 if (priv->indent != indent)
2816 priv->indent = indent;
2820 priv->layout->default_style->indent = indent;
2821 gtk_text_layout_default_style_changed (priv->layout);
2824 g_object_notify (G_OBJECT (text_view), "indent");
2829 * gtk_text_view_get_indent:
2830 * @text_view: a #GtkTextView
2832 * Gets the default indentation of paragraphs in @text_view.
2833 * Tags in the view's buffer may override the default.
2834 * The indentation may be negative.
2836 * Return value: number of pixels of indentation
2839 gtk_text_view_get_indent (GtkTextView *text_view)
2841 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2843 return text_view->priv->indent;
2847 * gtk_text_view_set_tabs:
2848 * @text_view: a #GtkTextView
2849 * @tabs: tabs as a #PangoTabArray
2851 * Sets the default tab stops for paragraphs in @text_view.
2852 * Tags in the buffer may override the default.
2855 gtk_text_view_set_tabs (GtkTextView *text_view,
2856 PangoTabArray *tabs)
2858 GtkTextViewPrivate *priv;
2860 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2862 priv = text_view->priv;
2865 pango_tab_array_free (priv->tabs);
2867 priv->tabs = tabs ? pango_tab_array_copy (tabs) : NULL;
2871 /* some unkosher futzing in internal struct details... */
2872 if (priv->layout->default_style->tabs)
2873 pango_tab_array_free (priv->layout->default_style->tabs);
2875 priv->layout->default_style->tabs =
2876 priv->tabs ? pango_tab_array_copy (priv->tabs) : NULL;
2878 gtk_text_layout_default_style_changed (priv->layout);
2881 g_object_notify (G_OBJECT (text_view), "tabs");
2885 * gtk_text_view_get_tabs:
2886 * @text_view: a #GtkTextView
2888 * Gets the default tabs for @text_view. Tags in the buffer may
2889 * override the defaults. The returned array will be %NULL if
2890 * "standard" (8-space) tabs are used. Free the return value
2891 * with pango_tab_array_free().
2893 * Return value: copy of default tab array, or %NULL if "standard"
2894 * tabs are used; must be freed with pango_tab_array_free().
2897 gtk_text_view_get_tabs (GtkTextView *text_view)
2899 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
2901 return text_view->priv->tabs ? pango_tab_array_copy (text_view->priv->tabs) : NULL;
2905 gtk_text_view_toggle_cursor_visible (GtkTextView *text_view)
2907 gtk_text_view_set_cursor_visible (text_view, !text_view->priv->cursor_visible);
2911 * gtk_text_view_set_cursor_visible:
2912 * @text_view: a #GtkTextView
2913 * @setting: whether to show the insertion cursor
2915 * Toggles whether the insertion point is displayed. A buffer with no editable
2916 * text probably shouldn't have a visible cursor, so you may want to turn
2920 gtk_text_view_set_cursor_visible (GtkTextView *text_view,
2923 GtkTextViewPrivate *priv;
2925 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2927 priv = text_view->priv;
2928 setting = (setting != FALSE);
2930 if (priv->cursor_visible != setting)
2932 priv->cursor_visible = setting;
2934 if (gtk_widget_has_focus (GTK_WIDGET (text_view)))
2938 gtk_text_layout_set_cursor_visible (priv->layout, setting);
2939 gtk_text_view_check_cursor_blink (text_view);
2943 g_object_notify (G_OBJECT (text_view), "cursor-visible");
2948 * gtk_text_view_get_cursor_visible:
2949 * @text_view: a #GtkTextView
2951 * Find out whether the cursor is being displayed.
2953 * Return value: whether the insertion mark is visible
2956 gtk_text_view_get_cursor_visible (GtkTextView *text_view)
2958 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
2960 return text_view->priv->cursor_visible;
2965 * gtk_text_view_place_cursor_onscreen:
2966 * @text_view: a #GtkTextView
2968 * Moves the cursor to the currently visible region of the
2969 * buffer, it it isn't there already.
2971 * Return value: %TRUE if the cursor had to be moved.
2974 gtk_text_view_place_cursor_onscreen (GtkTextView *text_view)
2978 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
2980 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
2981 gtk_text_buffer_get_insert (get_buffer (text_view)));
2983 if (clamp_iter_onscreen (text_view, &insert))
2985 gtk_text_buffer_place_cursor (get_buffer (text_view), &insert);
2993 gtk_text_view_remove_validate_idles (GtkTextView *text_view)
2995 GtkTextViewPrivate *priv = text_view->priv;
2997 if (priv->first_validate_idle != 0)
2999 DV (g_print ("Removing first validate idle: %s\n", G_STRLOC));
3000 g_source_remove (priv->first_validate_idle);
3001 priv->first_validate_idle = 0;
3004 if (priv->incremental_validate_idle != 0)
3006 g_source_remove (priv->incremental_validate_idle);
3007 priv->incremental_validate_idle = 0;
3012 gtk_text_view_destroy (GtkObject *object)
3014 GtkTextView *text_view;
3015 GtkTextViewPrivate *priv;
3017 text_view = GTK_TEXT_VIEW (object);
3018 priv = text_view->priv;
3020 gtk_text_view_remove_validate_idles (text_view);
3021 gtk_text_view_set_buffer (text_view, NULL);
3022 gtk_text_view_destroy_layout (text_view);
3024 if (text_view->priv->scroll_timeout)
3026 g_source_remove (text_view->priv->scroll_timeout);
3027 text_view->priv->scroll_timeout = 0;
3030 if (priv->im_spot_idle)
3032 g_source_remove (priv->im_spot_idle);
3033 priv->im_spot_idle = 0;
3036 GTK_OBJECT_CLASS (gtk_text_view_parent_class)->destroy (object);
3040 gtk_text_view_finalize (GObject *object)
3042 GtkTextView *text_view;
3043 GtkTextViewPrivate *priv;
3045 text_view = GTK_TEXT_VIEW (object);
3046 priv = text_view->priv;
3048 g_assert (priv->buffer == NULL);
3050 gtk_text_view_destroy_layout (text_view);
3051 gtk_text_view_set_buffer (text_view, NULL);
3053 cancel_pending_scroll (text_view);
3056 pango_tab_array_free (priv->tabs);
3058 if (priv->hadjustment)
3059 g_object_unref (priv->hadjustment);
3060 if (priv->vadjustment)
3061 g_object_unref (priv->vadjustment);
3063 text_window_free (priv->text_window);
3065 if (priv->left_window)
3066 text_window_free (priv->left_window);
3068 if (priv->top_window)
3069 text_window_free (priv->top_window);
3071 if (priv->right_window)
3072 text_window_free (priv->right_window);
3074 if (priv->bottom_window)
3075 text_window_free (priv->bottom_window);
3077 g_object_unref (priv->im_context);
3079 g_free (priv->im_module);
3081 G_OBJECT_CLASS (gtk_text_view_parent_class)->finalize (object);
3085 gtk_text_view_set_property (GObject *object,
3087 const GValue *value,
3090 GtkTextView *text_view;
3091 GtkTextViewPrivate *priv;
3093 text_view = GTK_TEXT_VIEW (object);
3094 priv = text_view->priv;
3098 case PROP_PIXELS_ABOVE_LINES:
3099 gtk_text_view_set_pixels_above_lines (text_view, g_value_get_int (value));
3102 case PROP_PIXELS_BELOW_LINES:
3103 gtk_text_view_set_pixels_below_lines (text_view, g_value_get_int (value));
3106 case PROP_PIXELS_INSIDE_WRAP:
3107 gtk_text_view_set_pixels_inside_wrap (text_view, g_value_get_int (value));
3111 gtk_text_view_set_editable (text_view, g_value_get_boolean (value));
3114 case PROP_WRAP_MODE:
3115 gtk_text_view_set_wrap_mode (text_view, g_value_get_enum (value));
3118 case PROP_JUSTIFICATION:
3119 gtk_text_view_set_justification (text_view, g_value_get_enum (value));
3122 case PROP_LEFT_MARGIN:
3123 gtk_text_view_set_left_margin (text_view, g_value_get_int (value));
3126 case PROP_RIGHT_MARGIN:
3127 gtk_text_view_set_right_margin (text_view, g_value_get_int (value));
3131 gtk_text_view_set_indent (text_view, g_value_get_int (value));
3135 gtk_text_view_set_tabs (text_view, g_value_get_boxed (value));
3138 case PROP_CURSOR_VISIBLE:
3139 gtk_text_view_set_cursor_visible (text_view, g_value_get_boolean (value));
3142 case PROP_OVERWRITE:
3143 gtk_text_view_set_overwrite (text_view, g_value_get_boolean (value));
3147 gtk_text_view_set_buffer (text_view, GTK_TEXT_BUFFER (g_value_get_object (value)));
3150 case PROP_ACCEPTS_TAB:
3151 gtk_text_view_set_accepts_tab (text_view, g_value_get_boolean (value));
3154 case PROP_IM_MODULE:
3155 g_free (priv->im_module);
3156 priv->im_module = g_value_dup_string (value);
3157 if (GTK_IS_IM_MULTICONTEXT (priv->im_context))
3158 gtk_im_multicontext_set_context_id (GTK_IM_MULTICONTEXT (priv->im_context), priv->im_module);
3162 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
3168 gtk_text_view_get_property (GObject *object,
3173 GtkTextView *text_view;
3174 GtkTextViewPrivate *priv;
3176 text_view = GTK_TEXT_VIEW (object);
3177 priv = text_view->priv;
3181 case PROP_PIXELS_ABOVE_LINES:
3182 g_value_set_int (value, priv->pixels_above_lines);
3185 case PROP_PIXELS_BELOW_LINES:
3186 g_value_set_int (value, priv->pixels_below_lines);
3189 case PROP_PIXELS_INSIDE_WRAP:
3190 g_value_set_int (value, priv->pixels_inside_wrap);
3194 g_value_set_boolean (value, priv->editable);
3197 case PROP_WRAP_MODE:
3198 g_value_set_enum (value, priv->wrap_mode);
3201 case PROP_JUSTIFICATION:
3202 g_value_set_enum (value, priv->justify);
3205 case PROP_LEFT_MARGIN:
3206 g_value_set_int (value, priv->left_margin);
3209 case PROP_RIGHT_MARGIN:
3210 g_value_set_int (value, priv->right_margin);
3214 g_value_set_int (value, priv->indent);
3218 g_value_set_boxed (value, priv->tabs);
3221 case PROP_CURSOR_VISIBLE:
3222 g_value_set_boolean (value, priv->cursor_visible);
3226 g_value_set_object (value, get_buffer (text_view));
3229 case PROP_OVERWRITE:
3230 g_value_set_boolean (value, priv->overwrite_mode);
3233 case PROP_ACCEPTS_TAB:
3234 g_value_set_boolean (value, priv->accepts_tab);
3237 case PROP_IM_MODULE:
3238 g_value_set_string (value, priv->im_module);
3242 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
3248 gtk_text_view_size_request (GtkWidget *widget,
3249 GtkRequisition *requisition)
3251 GtkTextView *text_view;
3252 GtkTextViewPrivate *priv;
3254 gint focus_edge_width;
3257 gboolean interior_focus;
3259 text_view = GTK_TEXT_VIEW (widget);
3260 priv = text_view->priv;
3262 gtk_widget_style_get (widget,
3263 "interior-focus", &interior_focus,
3264 "focus-line-width", &focus_width,
3268 focus_edge_width = 0;
3270 focus_edge_width = focus_width;
3274 priv->text_window->requisition.width = priv->layout->width;
3275 priv->text_window->requisition.height = priv->layout->height;
3279 priv->text_window->requisition.width = 0;
3280 priv->text_window->requisition.height = 0;
3283 requisition->width = priv->text_window->requisition.width + focus_edge_width * 2;
3284 requisition->height = priv->text_window->requisition.height + focus_edge_width * 2;
3286 if (priv->left_window)
3287 requisition->width += priv->left_window->requisition.width;
3289 if (priv->right_window)
3290 requisition->width += priv->right_window->requisition.width;
3292 if (priv->top_window)
3293 requisition->height += priv->top_window->requisition.height;
3295 if (priv->bottom_window)
3296 requisition->height += priv->bottom_window->requisition.height;
3298 border_width = gtk_container_get_border_width (GTK_CONTAINER (text_view));
3299 requisition->width += border_width * 2;
3300 requisition->height += border_width * 2;
3302 tmp_list = priv->children;
3303 while (tmp_list != NULL)
3305 GtkTextViewChild *child = tmp_list->data;
3309 GtkRequisition child_req;
3310 GtkRequisition old_req;
3312 gtk_size_request_get_size (GTK_SIZE_REQUEST (child->widget),
3315 gtk_size_request_get_size (GTK_SIZE_REQUEST (child->widget),
3318 /* Invalidate layout lines if required */
3320 (old_req.width != child_req.width ||
3321 old_req.height != child_req.height))
3322 gtk_text_child_anchor_queue_resize (child->anchor,
3327 GtkRequisition child_req;
3329 gtk_size_request_get_size (GTK_SIZE_REQUEST (child->widget),
3333 tmp_list = g_slist_next (tmp_list);
3336 /* Cache the requested size of the text view so we can
3337 * compare it in the changed_handler() */
3338 priv->cached_size_request = *requisition;
3342 gtk_text_view_compute_child_allocation (GtkTextView *text_view,
3343 GtkTextViewChild *vc,
3344 GtkAllocation *allocation)
3350 gtk_text_buffer_get_iter_at_child_anchor (get_buffer (text_view),
3354 gtk_text_layout_get_line_yrange (text_view->priv->layout, &iter,
3357 buffer_y += vc->from_top_of_line;
3359 allocation->x = vc->from_left_of_buffer - text_view->priv->xoffset;
3360 allocation->y = buffer_y - text_view->priv->yoffset;
3362 gtk_size_request_get_size (GTK_SIZE_REQUEST (vc->widget),
3364 allocation->width = req.width;
3365 allocation->height = req.height;
3369 gtk_text_view_update_child_allocation (GtkTextView *text_view,
3370 GtkTextViewChild *vc)
3372 GtkAllocation allocation;
3374 gtk_text_view_compute_child_allocation (text_view, vc, &allocation);
3376 gtk_widget_size_allocate (vc->widget, &allocation);
3379 g_print ("allocation for %p allocated to %d,%d yoffset = %d\n",
3381 vc->widget->allocation.x,
3382 vc->widget->allocation.y,
3383 text_view->priv->yoffset);
3388 gtk_text_view_child_allocated (GtkTextLayout *layout,
3394 GtkTextViewChild *vc = NULL;
3395 GtkTextView *text_view = data;
3397 /* x,y is the position of the child from the top of the line, and
3398 * from the left of the buffer. We have to translate that into text
3399 * window coordinates, then size_allocate the child.
3402 vc = g_object_get_data (G_OBJECT (child),
3403 "gtk-text-view-child");
3405 g_assert (vc != NULL);
3407 DV (g_print ("child allocated at %d,%d\n", x, y));
3409 vc->from_left_of_buffer = x;
3410 vc->from_top_of_line = y;
3412 gtk_text_view_update_child_allocation (text_view, vc);
3416 gtk_text_view_allocate_children (GtkTextView *text_view)
3420 DV(g_print(G_STRLOC"\n"));
3422 tmp_list = text_view->priv->children;
3423 while (tmp_list != NULL)
3425 GtkTextViewChild *child = tmp_list->data;
3427 g_assert (child != NULL);
3431 /* We need to force-validate the regions containing
3434 GtkTextIter child_loc;
3435 gtk_text_buffer_get_iter_at_child_anchor (get_buffer (text_view),
3439 /* Since anchored children are only ever allocated from
3440 * gtk_text_layout_get_line_display() we have to make sure
3441 * that the display line caching in the layout doesn't
3442 * get in the way. Invalidating the layout around the anchor
3445 if (GTK_WIDGET_ALLOC_NEEDED (child->widget))
3447 GtkTextIter end = child_loc;
3448 gtk_text_iter_forward_char (&end);
3449 gtk_text_layout_invalidate (text_view->priv->layout, &child_loc, &end);
3452 gtk_text_layout_validate_yrange (text_view->priv->layout,
3458 GtkAllocation allocation;
3459 GtkRequisition child_req;
3461 allocation.x = child->x;
3462 allocation.y = child->y;
3464 gtk_size_request_get_size (GTK_SIZE_REQUEST (child->widget),
3467 allocation.width = child_req.width;
3468 allocation.height = child_req.height;
3470 gtk_widget_size_allocate (child->widget, &allocation);
3473 tmp_list = g_slist_next (tmp_list);
3478 gtk_text_view_size_allocate (GtkWidget *widget,
3479 GtkAllocation *allocation)
3481 GtkAllocation widget_allocation;
3482 GtkTextView *text_view;
3483 GtkTextViewPrivate *priv;
3484 GtkTextIter first_para;
3487 GdkRectangle text_rect;
3488 GdkRectangle left_rect;
3489 GdkRectangle right_rect;
3490 GdkRectangle top_rect;
3491 GdkRectangle bottom_rect;
3492 gint focus_edge_width;
3495 gboolean interior_focus;
3496 gboolean size_changed;
3498 text_view = GTK_TEXT_VIEW (widget);
3499 priv = text_view->priv;
3501 DV(g_print(G_STRLOC"\n"));
3503 gtk_widget_get_allocation (widget, &widget_allocation);
3505 widget_allocation.width != allocation->width ||
3506 widget_allocation.height != allocation->height;
3508 border_width = gtk_container_get_border_width (GTK_CONTAINER (text_view));
3510 gtk_widget_set_allocation (widget, allocation);
3512 if (gtk_widget_get_realized (widget))
3514 gdk_window_move_resize (gtk_widget_get_window (widget),
3515 allocation->x, allocation->y,
3516 allocation->width, allocation->height);
3519 /* distribute width/height among child windows. Ensure all
3520 * windows get at least a 1x1 allocation.
3523 gtk_widget_style_get (widget,
3524 "interior-focus", &interior_focus,
3525 "focus-line-width", &focus_width,
3529 focus_edge_width = 0;
3531 focus_edge_width = focus_width;
3533 width = allocation->width - focus_edge_width * 2 - border_width * 2;
3535 if (priv->left_window)
3536 left_rect.width = priv->left_window->requisition.width;
3538 left_rect.width = 0;
3540 width -= left_rect.width;
3542 if (priv->right_window)
3543 right_rect.width = priv->right_window->requisition.width;
3545 right_rect.width = 0;
3547 width -= right_rect.width;
3549 text_rect.width = MAX (1, width);
3551 top_rect.width = text_rect.width;
3552 bottom_rect.width = text_rect.width;
3555 height = allocation->height - focus_edge_width * 2 - border_width * 2;
3557 if (priv->top_window)
3558 top_rect.height = priv->top_window->requisition.height;
3560 top_rect.height = 0;
3562 height -= top_rect.height;
3564 if (priv->bottom_window)
3565 bottom_rect.height = priv->bottom_window->requisition.height;
3567 bottom_rect.height = 0;
3569 height -= bottom_rect.height;
3571 text_rect.height = MAX (1, height);
3573 left_rect.height = text_rect.height;
3574 right_rect.height = text_rect.height;
3577 left_rect.x = focus_edge_width + border_width;
3578 top_rect.y = focus_edge_width + border_width;
3580 text_rect.x = left_rect.x + left_rect.width;
3581 text_rect.y = top_rect.y + top_rect.height;
3583 left_rect.y = text_rect.y;
3584 right_rect.y = text_rect.y;
3586 top_rect.x = text_rect.x;
3587 bottom_rect.x = text_rect.x;
3589 right_rect.x = text_rect.x + text_rect.width;
3590 bottom_rect.y = text_rect.y + text_rect.height;
3592 text_window_size_allocate (priv->text_window,
3595 if (priv->left_window)
3596 text_window_size_allocate (priv->left_window,
3599 if (priv->right_window)
3600 text_window_size_allocate (priv->right_window,
3603 if (priv->top_window)
3604 text_window_size_allocate (priv->top_window,
3607 if (priv->bottom_window)
3608 text_window_size_allocate (priv->bottom_window,
3611 gtk_text_view_update_layout_width (text_view);
3613 /* Note that this will do some layout validation */
3614 gtk_text_view_allocate_children (text_view);
3616 /* Ensure h/v adj exist */
3617 get_hadjustment (text_view);
3618 get_vadjustment (text_view);
3620 priv->hadjustment->page_size = SCREEN_WIDTH (text_view);
3621 priv->hadjustment->page_increment = SCREEN_WIDTH (text_view) * 0.9;
3622 priv->hadjustment->step_increment = SCREEN_WIDTH (text_view) * 0.1;
3623 priv->hadjustment->lower = 0;
3624 priv->hadjustment->upper = MAX (SCREEN_WIDTH (text_view),
3627 if (priv->hadjustment->value > priv->hadjustment->upper - priv->hadjustment->page_size)
3628 gtk_adjustment_set_value (priv->hadjustment, MAX (0, priv->hadjustment->upper - priv->hadjustment->page_size));
3630 gtk_adjustment_changed (priv->hadjustment);
3632 priv->vadjustment->page_size = SCREEN_HEIGHT (text_view);
3633 priv->vadjustment->page_increment = SCREEN_HEIGHT (text_view) * 0.9;
3634 priv->vadjustment->step_increment = SCREEN_HEIGHT (text_view) * 0.1;
3635 priv->vadjustment->lower = 0;
3636 priv->vadjustment->upper = MAX (SCREEN_HEIGHT (text_view),
3639 /* Now adjust the value of the adjustment to keep the cursor at the
3640 * same place in the buffer
3642 gtk_text_view_get_first_para_iter (text_view, &first_para);
3643 gtk_text_layout_get_line_yrange (priv->layout, &first_para, &y, NULL);
3645 y += priv->first_para_pixels;
3647 if (y > priv->vadjustment->upper - priv->vadjustment->page_size)
3648 y = MAX (0, priv->vadjustment->upper - priv->vadjustment->page_size);
3650 if (y != priv->yoffset)
3651 gtk_adjustment_set_value (priv->vadjustment, y);
3653 gtk_adjustment_changed (priv->vadjustment);
3655 /* The GTK resize loop processes all the pending exposes right
3656 * after doing the resize stuff, so the idle sizer won't have a
3657 * chance to run. So we do the work here.
3659 gtk_text_view_flush_first_validate (text_view);
3661 /* widget->window doesn't get auto-redrawn as the layout is computed, so has to
3664 if (size_changed && gtk_widget_get_realized (widget))
3665 gdk_window_invalidate_rect (gtk_widget_get_window (widget), NULL, FALSE);
3669 gtk_text_view_get_first_para_iter (GtkTextView *text_view,
3672 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), iter,
3673 text_view->priv->first_para_mark);
3677 gtk_text_view_validate_onscreen (GtkTextView *text_view)
3680 GtkTextViewPrivate *priv;
3682 widget = GTK_WIDGET (text_view);
3683 priv = text_view->priv;
3685 DV(g_print(">Validating onscreen ("G_STRLOC")\n"));
3687 if (SCREEN_HEIGHT (widget) > 0)
3689 GtkTextIter first_para;
3691 /* Be sure we've validated the stuff onscreen; if we
3692 * scrolled, these calls won't have any effect, because
3693 * they were called in the recursive validate_onscreen
3695 gtk_text_view_get_first_para_iter (text_view, &first_para);
3697 gtk_text_layout_validate_yrange (priv->layout,
3700 priv->first_para_pixels +
3701 SCREEN_HEIGHT (widget));
3704 priv->onscreen_validated = TRUE;
3706 DV(g_print(">Done validating onscreen, onscreen_validated = TRUE ("G_STRLOC")\n"));
3708 /* This can have the odd side effect of triggering a scroll, which should
3709 * flip "onscreen_validated" back to FALSE, but should also get us
3710 * back into this function to turn it on again.
3712 gtk_text_view_update_adjustments (text_view);
3714 g_assert (priv->onscreen_validated);
3718 gtk_text_view_flush_first_validate (GtkTextView *text_view)
3720 GtkTextViewPrivate *priv = text_view->priv;
3722 if (priv->first_validate_idle == 0)
3725 /* Do this first, which means that if an "invalidate"
3726 * occurs during any of this process, a new first_validate_callback
3727 * will be installed, and we'll start again.
3729 DV (g_print ("removing first validate in %s\n", G_STRLOC));
3730 g_source_remove (priv->first_validate_idle);
3731 priv->first_validate_idle = 0;
3733 /* be sure we have up-to-date screen size set on the
3736 gtk_text_view_update_layout_width (text_view);
3738 /* Bail out if we invalidated stuff; scrolling right away will just
3739 * confuse the issue.
3741 if (priv->first_validate_idle != 0)
3743 DV(g_print(">Width change forced requeue ("G_STRLOC")\n"));
3747 /* scroll to any marks, if that's pending. This can jump us to
3748 * the validation codepath used for scrolling onscreen, if so we
3749 * bail out. It won't jump if already in that codepath since
3750 * value_changed is not recursive, so also validate if
3753 if (!gtk_text_view_flush_scroll (text_view) ||
3754 !priv->onscreen_validated)
3755 gtk_text_view_validate_onscreen (text_view);
3757 DV(g_print(">Leaving first validate idle ("G_STRLOC")\n"));
3759 g_assert (priv->onscreen_validated);
3764 first_validate_callback (gpointer data)
3766 GtkTextView *text_view = data;
3768 /* Note that some of this code is duplicated at the end of size_allocate,
3769 * keep in sync with that.
3772 DV(g_print(G_STRLOC"\n"));
3774 gtk_text_view_flush_first_validate (text_view);
3780 incremental_validate_callback (gpointer data)
3782 GtkTextView *text_view = data;
3783 gboolean result = TRUE;
3785 DV(g_print(G_STRLOC"\n"));
3787 gtk_text_layout_validate (text_view->priv->layout, 2000);
3789 gtk_text_view_update_adjustments (text_view);
3791 if (gtk_text_layout_is_valid (text_view->priv->layout))
3793 text_view->priv->incremental_validate_idle = 0;
3801 gtk_text_view_invalidate (GtkTextView *text_view)
3803 GtkTextViewPrivate *priv = text_view->priv;
3805 DV (g_print (">Invalidate, onscreen_validated = %d now FALSE ("G_STRLOC")\n",
3806 priv->onscreen_validated));
3808 priv->onscreen_validated = FALSE;
3810 /* We'll invalidate when the layout is created */
3811 if (priv->layout == NULL)
3814 if (!priv->first_validate_idle)
3816 priv->first_validate_idle = gdk_threads_add_idle_full (GTK_PRIORITY_RESIZE - 2, first_validate_callback, text_view, NULL);
3817 DV (g_print (G_STRLOC": adding first validate idle %d\n",
3818 priv->first_validate_idle));
3821 if (!priv->incremental_validate_idle)
3823 priv->incremental_validate_idle = gdk_threads_add_idle_full (GTK_TEXT_VIEW_PRIORITY_VALIDATE, incremental_validate_callback, text_view, NULL);
3824 DV (g_print (G_STRLOC": adding incremental validate idle %d\n",
3825 priv->incremental_validate_idle));
3830 invalidated_handler (GtkTextLayout *layout,
3833 GtkTextView *text_view;
3835 text_view = GTK_TEXT_VIEW (data);
3837 DV (g_print ("Invalidating due to layout invalidate signal\n"));
3838 gtk_text_view_invalidate (text_view);
3842 changed_handler (GtkTextLayout *layout,
3848 GtkTextView *text_view;
3849 GtkTextViewPrivate *priv;
3851 GdkRectangle visible_rect;
3852 GdkRectangle redraw_rect;
3854 text_view = GTK_TEXT_VIEW (data);
3855 priv = text_view->priv;
3856 widget = GTK_WIDGET (data);
3858 DV(g_print(">Lines Validated ("G_STRLOC")\n"));
3860 if (gtk_widget_get_realized (widget))
3862 gtk_text_view_get_visible_rect (text_view, &visible_rect);
3864 redraw_rect.x = visible_rect.x;
3865 redraw_rect.width = visible_rect.width;
3866 redraw_rect.y = start_y;
3868 if (old_height == new_height)
3869 redraw_rect.height = old_height;
3870 else if (start_y + old_height > visible_rect.y)
3871 redraw_rect.height = MAX (0, visible_rect.y + visible_rect.height - start_y);
3873 redraw_rect.height = 0;
3875 if (gdk_rectangle_intersect (&redraw_rect, &visible_rect, &redraw_rect))
3877 /* text_window_invalidate_rect() takes buffer coordinates */
3878 text_window_invalidate_rect (priv->text_window,
3881 DV(g_print(" invalidated rect: %d,%d %d x %d\n",
3885 redraw_rect.height));
3887 if (priv->left_window)
3888 text_window_invalidate_rect (priv->left_window,
3890 if (priv->right_window)
3891 text_window_invalidate_rect (priv->right_window,
3893 if (priv->top_window)
3894 text_window_invalidate_rect (priv->top_window,
3896 if (priv->bottom_window)
3897 text_window_invalidate_rect (priv->bottom_window,
3900 queue_update_im_spot_location (text_view);
3904 if (old_height != new_height)
3906 gboolean yoffset_changed = FALSE;
3908 int new_first_para_top;
3909 int old_first_para_top;
3912 /* If the bottom of the old area was above the top of the
3913 * screen, we need to scroll to keep the current top of the
3914 * screen in place. Remember that first_para_pixels is the
3915 * position of the top of the screen in coordinates relative to
3916 * the first paragraph onscreen.
3918 * In short we are adding the height delta of the portion of the
3919 * changed region above first_para_mark to priv->yoffset.
3921 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &first,
3922 priv->first_para_mark);
3924 gtk_text_layout_get_line_yrange (layout, &first, &new_first_para_top, NULL);
3926 old_first_para_top = priv->yoffset - priv->first_para_pixels;
3928 if (new_first_para_top != old_first_para_top)
3930 priv->yoffset += new_first_para_top - old_first_para_top;
3932 get_vadjustment (text_view)->value = priv->yoffset;
3933 yoffset_changed = TRUE;
3936 if (yoffset_changed)
3938 DV(g_print ("Changing scroll position (%s)\n", G_STRLOC));
3939 gtk_adjustment_value_changed (get_vadjustment (text_view));
3942 /* FIXME be smarter about which anchored widgets we update */
3944 tmp_list = priv->children;
3945 while (tmp_list != NULL)
3947 GtkTextViewChild *child = tmp_list->data;
3950 gtk_text_view_update_child_allocation (text_view, child);
3952 tmp_list = g_slist_next (tmp_list);
3957 GtkRequisition old_req = priv->cached_size_request;
3958 GtkRequisition new_req;
3960 /* Use this instead of gtk_widget_size_request wrapper
3961 * to avoid the optimization which just returns widget->requisition
3962 * if a resize hasn't been queued.
3964 GTK_WIDGET_GET_CLASS (widget)->size_request (widget, &new_req);
3966 if (old_req.width != new_req.width ||
3967 old_req.height != new_req.height)
3969 gtk_widget_queue_resize_no_redraw (widget);
3975 gtk_text_view_realize (GtkWidget *widget)
3977 GtkAllocation allocation;
3978 GtkTextView *text_view;
3979 GtkTextViewPrivate *priv;
3981 GdkWindowAttr attributes;
3982 gint attributes_mask;
3985 text_view = GTK_TEXT_VIEW (widget);
3986 priv = text_view->priv;
3988 gtk_widget_set_realized (widget, TRUE);
3990 gtk_widget_get_allocation (widget, &allocation);
3992 attributes.window_type = GDK_WINDOW_CHILD;
3993 attributes.x = allocation.x;
3994 attributes.y = allocation.y;
3995 attributes.width = allocation.width;
3996 attributes.height = allocation.height;
3997 attributes.wclass = GDK_INPUT_OUTPUT;
3998 attributes.visual = gtk_widget_get_visual (widget);
3999 attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK;
4001 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
4003 window = gdk_window_new (gtk_widget_get_parent_window (widget),
4004 &attributes, attributes_mask);
4005 gtk_widget_set_window (widget, window);
4006 gdk_window_set_user_data (window, widget);
4008 /* must come before text_window_realize calls */
4009 gtk_widget_style_attach (widget);
4011 gdk_window_set_background (window,
4012 >k_widget_get_style (widget)->bg[gtk_widget_get_state (widget)]);
4014 text_window_realize (priv->text_window, widget);
4016 if (priv->left_window)
4017 text_window_realize (priv->left_window, widget);
4019 if (priv->top_window)
4020 text_window_realize (priv->top_window, widget);
4022 if (priv->right_window)
4023 text_window_realize (priv->right_window, widget);
4025 if (priv->bottom_window)
4026 text_window_realize (priv->bottom_window, widget);
4028 gtk_text_view_ensure_layout (text_view);
4032 GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view),
4033 GDK_SELECTION_PRIMARY);
4034 gtk_text_buffer_add_selection_clipboard (priv->buffer, clipboard);
4037 tmp_list = priv->children;
4038 while (tmp_list != NULL)
4040 GtkTextViewChild *vc = tmp_list->data;
4042 text_view_child_set_parent_window (text_view, vc);
4044 tmp_list = tmp_list->next;
4047 /* Ensure updating the spot location. */
4048 gtk_text_view_update_im_spot_location (text_view);
4052 gtk_text_view_unrealize (GtkWidget *widget)
4054 GtkTextView *text_view;
4055 GtkTextViewPrivate *priv;
4057 text_view = GTK_TEXT_VIEW (widget);
4058 priv = text_view->priv;
4062 GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view),
4063 GDK_SELECTION_PRIMARY);
4064 gtk_text_buffer_remove_selection_clipboard (priv->buffer, clipboard);
4067 gtk_text_view_remove_validate_idles (text_view);
4069 if (priv->popup_menu)
4071 gtk_widget_destroy (priv->popup_menu);
4072 priv->popup_menu = NULL;
4075 text_window_unrealize (priv->text_window);
4077 if (priv->left_window)
4078 text_window_unrealize (priv->left_window);
4080 if (priv->top_window)
4081 text_window_unrealize (priv->top_window);
4083 if (priv->right_window)
4084 text_window_unrealize (priv->right_window);
4086 if (priv->bottom_window)
4087 text_window_unrealize (priv->bottom_window);
4089 gtk_text_view_destroy_layout (text_view);
4091 GTK_WIDGET_CLASS (gtk_text_view_parent_class)->unrealize (widget);
4095 gtk_text_view_set_background (GtkTextView *text_view)
4100 GtkTextViewPrivate *priv;
4102 widget = GTK_WIDGET (text_view);
4103 priv = text_view->priv;
4105 style = gtk_widget_get_style (widget);
4106 state = gtk_widget_get_state (widget);
4108 gdk_window_set_background (gtk_widget_get_window (widget),
4111 gdk_window_set_background (priv->text_window->bin_window,
4112 &style->base[state]);
4114 if (priv->left_window)
4115 gdk_window_set_background (priv->left_window->bin_window,
4117 if (priv->right_window)
4118 gdk_window_set_background (priv->right_window->bin_window,
4121 if (priv->top_window)
4122 gdk_window_set_background (priv->top_window->bin_window,
4125 if (priv->bottom_window)
4126 gdk_window_set_background (priv->bottom_window->bin_window,
4131 gtk_text_view_style_set (GtkWidget *widget,
4132 GtkStyle *previous_style)
4134 GtkTextView *text_view;
4135 GtkTextViewPrivate *priv;
4136 PangoContext *ltr_context, *rtl_context;
4138 text_view = GTK_TEXT_VIEW (widget);
4139 priv = text_view->priv;
4141 if (gtk_widget_get_realized (widget))
4143 gtk_text_view_set_background (text_view);
4146 if (priv->layout && previous_style)
4148 gtk_text_view_set_attributes_from_style (text_view,
4149 priv->layout->default_style,
4150 gtk_widget_get_style (widget));
4152 ltr_context = gtk_widget_create_pango_context (widget);
4153 pango_context_set_base_dir (ltr_context, PANGO_DIRECTION_LTR);
4154 rtl_context = gtk_widget_create_pango_context (widget);
4155 pango_context_set_base_dir (rtl_context, PANGO_DIRECTION_RTL);
4157 gtk_text_layout_set_contexts (priv->layout, ltr_context, rtl_context);
4159 g_object_unref (ltr_context);
4160 g_object_unref (rtl_context);
4165 gtk_text_view_direction_changed (GtkWidget *widget,
4166 GtkTextDirection previous_direction)
4168 GtkTextViewPrivate *priv = GTK_TEXT_VIEW (widget)->priv;
4172 priv->layout->default_style->direction = gtk_widget_get_direction (widget);
4174 gtk_text_layout_default_style_changed (priv->layout);
4179 gtk_text_view_state_changed (GtkWidget *widget,
4180 GtkStateType previous_state)
4182 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
4185 if (gtk_widget_get_realized (widget))
4187 gtk_text_view_set_background (text_view);
4189 if (gtk_widget_is_sensitive (widget))
4190 cursor = gdk_cursor_new_for_display (gtk_widget_get_display (widget), GDK_XTERM);
4194 gdk_window_set_cursor (text_view->priv->text_window->bin_window, cursor);
4197 gdk_cursor_unref (cursor);
4199 text_view->priv->mouse_cursor_obscured = FALSE;
4202 if (!gtk_widget_is_sensitive (widget))
4204 /* Clear any selection */
4205 gtk_text_view_unselect (text_view);
4208 gtk_widget_queue_draw (widget);
4212 set_invisible_cursor (GdkWindow *window)
4214 GdkDisplay *display;
4217 display = gdk_drawable_get_display (window);
4218 cursor = gdk_cursor_new_for_display (display, GDK_BLANK_CURSOR);
4220 gdk_window_set_cursor (window, cursor);
4222 gdk_cursor_unref (cursor);
4226 gtk_text_view_obscure_mouse_cursor (GtkTextView *text_view)
4228 if (text_view->priv->mouse_cursor_obscured)
4231 set_invisible_cursor (text_view->priv->text_window->bin_window);
4233 text_view->priv->mouse_cursor_obscured = TRUE;
4237 gtk_text_view_unobscure_mouse_cursor (GtkTextView *text_view)
4239 if (text_view->priv->mouse_cursor_obscured)
4243 cursor = gdk_cursor_new_for_display (gtk_widget_get_display (GTK_WIDGET (text_view)),
4245 gdk_window_set_cursor (text_view->priv->text_window->bin_window, cursor);
4246 gdk_cursor_unref (cursor);
4247 text_view->priv->mouse_cursor_obscured = FALSE;
4252 gtk_text_view_grab_notify (GtkWidget *widget,
4253 gboolean was_grabbed)
4255 GtkTextViewPrivate *priv;
4257 priv = GTK_TEXT_VIEW (widget)->priv;
4259 if (priv->grab_device &&
4260 gtk_widget_device_is_shadowed (widget, priv->grab_device))
4262 gtk_text_view_end_selection_drag (GTK_TEXT_VIEW (widget));
4263 gtk_text_view_unobscure_mouse_cursor (GTK_TEXT_VIEW (widget));
4273 get_event_coordinates (GdkEvent *event, gint *x, gint *y)
4276 switch (event->type)
4278 case GDK_MOTION_NOTIFY:
4279 *x = event->motion.x;
4280 *y = event->motion.y;
4284 case GDK_BUTTON_PRESS:
4285 case GDK_2BUTTON_PRESS:
4286 case GDK_3BUTTON_PRESS:
4287 case GDK_BUTTON_RELEASE:
4288 *x = event->button.x;
4289 *y = event->button.y;
4294 case GDK_KEY_RELEASE:
4295 case GDK_ENTER_NOTIFY:
4296 case GDK_LEAVE_NOTIFY:
4297 case GDK_PROPERTY_NOTIFY:
4298 case GDK_SELECTION_CLEAR:
4299 case GDK_SELECTION_REQUEST:
4300 case GDK_SELECTION_NOTIFY:
4301 case GDK_PROXIMITY_IN:
4302 case GDK_PROXIMITY_OUT:
4303 case GDK_DRAG_ENTER:
4304 case GDK_DRAG_LEAVE:
4305 case GDK_DRAG_MOTION:
4306 case GDK_DRAG_STATUS:
4307 case GDK_DROP_START:
4308 case GDK_DROP_FINISHED:
4318 emit_event_on_tags (GtkWidget *widget,
4324 gboolean retval = FALSE;
4326 tags = gtk_text_iter_get_tags (iter);
4331 GtkTextTag *tag = tmp->data;
4333 if (gtk_text_tag_event (tag, G_OBJECT (widget), event, iter))
4339 tmp = g_slist_next (tmp);
4342 g_slist_free (tags);
4348 gtk_text_view_event (GtkWidget *widget, GdkEvent *event)
4350 GtkTextView *text_view;
4351 GtkTextViewPrivate *priv;
4354 text_view = GTK_TEXT_VIEW (widget);
4355 priv = text_view->priv;
4357 if (priv->layout == NULL ||
4358 get_buffer (text_view) == NULL)
4361 if (event->any.window != priv->text_window->bin_window)
4364 if (get_event_coordinates (event, &x, &y))
4371 /* FIXME this is slow and we do it twice per event.
4372 * My favorite solution is to have GtkTextLayout cache
4373 * the last couple lookups.
4375 gtk_text_layout_get_iter_at_pixel (priv->layout,
4379 return emit_event_on_tags (widget, event, &iter);
4381 else if (event->type == GDK_KEY_PRESS ||
4382 event->type == GDK_KEY_RELEASE)
4386 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter,
4387 gtk_text_buffer_get_insert (get_buffer (text_view)));
4389 return emit_event_on_tags (widget, event, &iter);
4396 gtk_text_view_key_press_event (GtkWidget *widget, GdkEventKey *event)
4398 GtkTextView *text_view;
4399 GtkTextViewPrivate *priv;
4400 GtkTextMark *insert;
4402 gboolean can_insert;
4403 gboolean retval = FALSE;
4404 gboolean obscure = FALSE;
4406 text_view = GTK_TEXT_VIEW (widget);
4407 priv = text_view->priv;
4409 if (priv->layout == NULL ||
4410 get_buffer (text_view) == NULL)
4413 /* Make sure input method knows where it is */
4414 flush_update_im_spot_location (text_view);
4416 insert = gtk_text_buffer_get_insert (get_buffer (text_view));
4417 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, insert);
4418 can_insert = gtk_text_iter_can_insert (&iter, priv->editable);
4419 if (gtk_im_context_filter_keypress (priv->im_context, event))
4421 priv->need_im_reset = TRUE;
4423 gtk_text_view_reset_im_context (text_view);
4424 obscure = can_insert;
4428 else if (GTK_WIDGET_CLASS (gtk_text_view_parent_class)->key_press_event (widget, event))
4432 /* use overall editability not can_insert, more predictable for users */
4433 else if (priv->editable &&
4434 (event->keyval == GDK_KEY_Return ||
4435 event->keyval == GDK_KEY_ISO_Enter ||
4436 event->keyval == GDK_KEY_KP_Enter))
4438 /* this won't actually insert the newline if the cursor isn't
4441 gtk_text_view_reset_im_context (text_view);
4442 gtk_text_view_commit_text (text_view, "\n");
4447 /* Pass through Tab as literal tab, unless Control is held down */
4448 else if ((event->keyval == GDK_KEY_Tab ||
4449 event->keyval == GDK_KEY_KP_Tab ||
4450 event->keyval == GDK_KEY_ISO_Left_Tab) &&
4451 !(event->state & GDK_CONTROL_MASK))
4453 /* If the text widget isn't editable overall, or if the application
4454 * has turned off "accepts_tab", move the focus instead
4456 if (priv->accepts_tab && priv->editable)
4458 gtk_text_view_reset_im_context (text_view);
4459 gtk_text_view_commit_text (text_view, "\t");
4463 g_signal_emit_by_name (text_view, "move-focus",
4464 (event->state & GDK_SHIFT_MASK) ?
4465 GTK_DIR_TAB_BACKWARD : GTK_DIR_TAB_FORWARD);
4473 gtk_text_view_obscure_mouse_cursor (text_view);
4475 gtk_text_view_reset_blink_time (text_view);
4476 gtk_text_view_pend_cursor_blink (text_view);
4482 gtk_text_view_key_release_event (GtkWidget *widget, GdkEventKey *event)
4484 GtkTextView *text_view;
4485 GtkTextViewPrivate *priv;
4486 GtkTextMark *insert;
4489 text_view = GTK_TEXT_VIEW (widget);
4490 priv = text_view->priv;
4492 if (priv->layout == NULL || get_buffer (text_view) == NULL)
4495 insert = gtk_text_buffer_get_insert (get_buffer (text_view));
4496 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, insert);
4497 if (gtk_text_iter_can_insert (&iter, priv->editable) &&
4498 gtk_im_context_filter_keypress (priv->im_context, event))
4500 priv->need_im_reset = TRUE;
4504 return GTK_WIDGET_CLASS (gtk_text_view_parent_class)->key_release_event (widget, event);
4508 gtk_text_view_button_press_event (GtkWidget *widget, GdkEventButton *event)
4510 GtkTextView *text_view;
4511 GtkTextViewPrivate *priv;
4513 text_view = GTK_TEXT_VIEW (widget);
4514 priv = text_view->priv;
4516 gtk_widget_grab_focus (widget);
4518 if (event->window != priv->text_window->bin_window)
4520 /* Remove selection if any. */
4521 gtk_text_view_unselect (text_view);
4525 gtk_text_view_reset_blink_time (text_view);
4529 if (event->button == 3 && (event->state & GDK_CONTROL_MASK) != 0)
4530 _gtk_text_buffer_spew (GTK_TEXT_VIEW (widget)->buffer);
4531 else if (event->button == 3)
4532 gtk_text_layout_spew (GTK_TEXT_VIEW (widget)->layout);
4535 if (event->type == GDK_BUTTON_PRESS)
4537 gtk_text_view_reset_im_context (text_view);
4539 if (event->button == 1)
4541 /* If we're in the selection, start a drag copy/move of the
4542 * selection; otherwise, start creating a new selection.
4545 GtkTextIter start, end;
4547 gtk_text_layout_get_iter_at_pixel (priv->layout,
4549 event->x + priv->xoffset,
4550 event->y + priv->yoffset);
4552 if (gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
4554 gtk_text_iter_in_range (&iter, &start, &end) &&
4555 !(event->state & GDK_SHIFT_MASK))
4557 priv->drag_start_x = event->x;
4558 priv->drag_start_y = event->y;
4559 priv->pending_place_cursor_button = event->button;
4563 gtk_text_view_start_selection_drag (text_view, &iter, event);
4568 else if (event->button == 2)
4572 /* We do not want to scroll back to the insert iter when we paste
4573 with the middle button */
4574 priv->scroll_after_paste = FALSE;
4576 gtk_text_layout_get_iter_at_pixel (priv->layout,
4578 event->x + priv->xoffset,
4579 event->y + priv->yoffset);
4581 gtk_text_buffer_paste_clipboard (get_buffer (text_view),
4582 gtk_widget_get_clipboard (widget, GDK_SELECTION_PRIMARY),
4587 else if (event->button == 3)
4589 gtk_text_view_do_popup (text_view, event);
4593 else if ((event->type == GDK_2BUTTON_PRESS ||
4594 event->type == GDK_3BUTTON_PRESS) &&
4599 gtk_text_view_end_selection_drag (text_view);
4601 gtk_text_layout_get_iter_at_pixel (priv->layout,
4603 event->x + priv->xoffset,
4604 event->y + priv->yoffset);
4606 gtk_text_view_start_selection_drag (text_view, &iter, event);
4614 gtk_text_view_button_release_event (GtkWidget *widget, GdkEventButton *event)
4616 GtkTextView *text_view;
4617 GtkTextViewPrivate *priv;
4619 text_view = GTK_TEXT_VIEW (widget);
4620 priv = text_view->priv;
4622 if (event->window != priv->text_window->bin_window)
4625 if (event->button == 1)
4627 if (priv->drag_start_x >= 0)
4629 priv->drag_start_x = -1;
4630 priv->drag_start_y = -1;
4633 if (gtk_text_view_end_selection_drag (GTK_TEXT_VIEW (widget)))
4635 else if (priv->pending_place_cursor_button == event->button)
4639 /* Unselect everything; we clicked inside selection, but
4640 * didn't move by the drag threshold, so just clear selection
4643 gtk_text_layout_get_iter_at_pixel (priv->layout,
4645 event->x + priv->xoffset,
4646 event->y + priv->yoffset);
4648 gtk_text_buffer_place_cursor (get_buffer (text_view), &iter);
4649 gtk_text_view_check_cursor_blink (text_view);
4651 priv->pending_place_cursor_button = 0;
4661 keymap_direction_changed (GdkKeymap *keymap,
4662 GtkTextView *text_view)
4664 gtk_text_view_check_keymap_direction (text_view);
4668 gtk_text_view_focus_in_event (GtkWidget *widget, GdkEventFocus *event)
4670 GtkTextView *text_view;
4671 GtkTextViewPrivate *priv;
4673 text_view = GTK_TEXT_VIEW (widget);
4674 priv = text_view->priv;
4676 gtk_widget_queue_draw (widget);
4678 DV(g_print (G_STRLOC": focus_in_event\n"));
4680 gtk_text_view_reset_blink_time (text_view);
4682 if (priv->cursor_visible && priv->layout)
4684 gtk_text_layout_set_cursor_visible (priv->layout, TRUE);
4685 gtk_text_view_check_cursor_blink (text_view);
4688 g_signal_connect (gdk_keymap_get_for_display (gtk_widget_get_display (widget)),
4689 "direction-changed",
4690 G_CALLBACK (keymap_direction_changed), text_view);
4691 gtk_text_view_check_keymap_direction (text_view);
4695 priv->need_im_reset = TRUE;
4696 gtk_im_context_focus_in (priv->im_context);
4703 gtk_text_view_focus_out_event (GtkWidget *widget, GdkEventFocus *event)
4705 GtkTextView *text_view;
4706 GtkTextViewPrivate *priv;
4708 text_view = GTK_TEXT_VIEW (widget);
4709 priv = text_view->priv;
4711 gtk_text_view_end_selection_drag (text_view);
4713 gtk_widget_queue_draw (widget);
4715 DV(g_print (G_STRLOC": focus_out_event\n"));
4717 if (priv->cursor_visible && priv->layout)
4719 gtk_text_view_check_cursor_blink (text_view);
4720 gtk_text_layout_set_cursor_visible (priv->layout, FALSE);
4723 g_signal_handlers_disconnect_by_func (gdk_keymap_get_for_display (gtk_widget_get_display (widget)),
4724 keymap_direction_changed,
4729 priv->need_im_reset = TRUE;
4730 gtk_im_context_focus_out (priv->im_context);
4737 gtk_text_view_motion_event (GtkWidget *widget, GdkEventMotion *event)
4739 GtkTextView *text_view;
4740 GtkTextViewPrivate *priv;
4742 text_view = GTK_TEXT_VIEW (widget);
4743 priv = text_view->priv;
4745 gtk_text_view_unobscure_mouse_cursor (text_view);
4747 if (event->window == priv->text_window->bin_window &&
4748 priv->drag_start_x >= 0)
4753 gdk_event_request_motions (event);
4755 if (gtk_drag_check_threshold (widget,
4761 gint buffer_x, buffer_y;
4763 gtk_text_view_window_to_buffer_coords (text_view,
4764 GTK_TEXT_WINDOW_TEXT,
4770 gtk_text_layout_get_iter_at_pixel (priv->layout,
4772 buffer_x, buffer_y);
4774 gtk_text_view_start_selection_dnd (text_view, &iter, event);
4783 gtk_text_view_paint (GtkWidget *widget,
4785 GdkEventExpose *event)
4787 GtkTextView *text_view;
4788 GtkTextViewPrivate *priv;
4789 GList *child_exposes;
4793 text_view = GTK_TEXT_VIEW (widget);
4794 priv = text_view->priv;
4796 g_return_if_fail (priv->layout != NULL);
4797 g_return_if_fail (priv->xoffset >= 0);
4798 g_return_if_fail (priv->yoffset >= 0);
4800 while (priv->first_validate_idle != 0)
4802 DV (g_print (G_STRLOC": first_validate_idle: %d\n",
4803 priv->first_validate_idle));
4804 gtk_text_view_flush_first_validate (text_view);
4807 if (!priv->onscreen_validated)
4809 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.");
4810 g_assert_not_reached ();
4814 printf ("painting %d,%d %d x %d\n",
4816 area->width, area->height);
4819 child_exposes = NULL;
4821 cr = gdk_cairo_create (priv->text_window->bin_window);
4823 gdk_cairo_region (cr, event->region);
4826 cairo_translate (cr, -priv->xoffset, -priv->yoffset);
4828 gtk_text_layout_draw (priv->layout,
4835 tmp_list = child_exposes;
4836 while (tmp_list != NULL)
4838 GtkWidget *child = tmp_list->data;
4840 gtk_container_propagate_expose (GTK_CONTAINER (text_view),
4844 g_object_unref (child);
4846 tmp_list = tmp_list->next;
4849 g_list_free (child_exposes);
4853 gtk_text_view_expose_event (GtkWidget *widget, GdkEventExpose *event)
4857 if (event->window == gtk_text_view_get_window (GTK_TEXT_VIEW (widget),
4858 GTK_TEXT_WINDOW_TEXT))
4860 DV(g_print (">Exposed ("G_STRLOC")\n"));
4861 gtk_text_view_paint (widget, &event->area, event);
4864 if (event->window == gtk_widget_get_window (widget))
4865 gtk_text_view_draw_focus (widget);
4867 /* Propagate exposes to all unanchored children.
4868 * Anchored children are handled in gtk_text_view_paint().
4870 tmp_list = GTK_TEXT_VIEW (widget)->priv->children;
4871 while (tmp_list != NULL)
4873 GtkTextViewChild *vc = tmp_list->data;
4875 /* propagate_expose checks that event->window matches
4879 gtk_container_propagate_expose (GTK_CONTAINER (widget),
4883 tmp_list = tmp_list->next;
4890 gtk_text_view_draw_focus (GtkWidget *widget)
4892 GtkAllocation allocation;
4894 gboolean interior_focus;
4896 /* We clear the focus if we are in interior focus mode. */
4897 gtk_widget_style_get (widget,
4898 "interior-focus", &interior_focus,
4901 if (gtk_widget_is_drawable (widget))
4903 window = gtk_widget_get_window (widget);
4905 if (gtk_widget_has_focus (widget) && !interior_focus)
4907 gtk_widget_get_allocation (widget, &allocation);
4908 gtk_paint_focus (gtk_widget_get_style (widget),
4910 gtk_widget_get_state (widget),
4911 NULL, widget, "textview",
4913 allocation.width, allocation.height);
4917 gdk_window_clear (window);
4923 gtk_text_view_focus (GtkWidget *widget,
4924 GtkDirectionType direction)
4926 GtkContainer *container;
4929 container = GTK_CONTAINER (widget);
4931 if (!gtk_widget_is_focus (widget) &&
4932 gtk_container_get_focus_child (container) == NULL)
4934 gtk_widget_grab_focus (widget);
4940 * Unset CAN_FOCUS flag so that gtk_container_focus() allows
4941 * children to get the focus
4943 gtk_widget_set_can_focus (widget, FALSE);
4944 result = GTK_WIDGET_CLASS (gtk_text_view_parent_class)->focus (widget, direction);
4945 gtk_widget_set_can_focus (widget, TRUE);
4952 gtk_text_view_move_focus (GtkWidget *widget,
4953 GtkDirectionType direction_type)
4955 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
4957 if (GTK_TEXT_VIEW_GET_CLASS (text_view)->move_focus)
4958 GTK_TEXT_VIEW_GET_CLASS (text_view)->move_focus (text_view,
4967 gtk_text_view_add (GtkContainer *container,
4970 /* This is pretty random. */
4971 gtk_text_view_add_child_in_window (GTK_TEXT_VIEW (container),
4973 GTK_TEXT_WINDOW_WIDGET,
4978 gtk_text_view_remove (GtkContainer *container,
4981 GtkTextView *text_view;
4982 GtkTextViewPrivate *priv;
4983 GtkTextViewChild *vc;
4986 text_view = GTK_TEXT_VIEW (container);
4987 priv = text_view->priv;
4990 iter = priv->children;
4992 while (iter != NULL)
4996 if (vc->widget == child)
4999 iter = g_slist_next (iter);
5002 g_assert (iter != NULL); /* be sure we had the child in the list */
5004 priv->children = g_slist_remove (priv->children, vc);
5006 gtk_widget_unparent (vc->widget);
5008 text_view_child_free (vc);
5012 gtk_text_view_forall (GtkContainer *container,
5013 gboolean include_internals,
5014 GtkCallback callback,
5015 gpointer callback_data)
5018 GtkTextView *text_view;
5021 g_return_if_fail (GTK_IS_TEXT_VIEW (container));
5022 g_return_if_fail (callback != NULL);
5024 text_view = GTK_TEXT_VIEW (container);
5026 copy = g_slist_copy (text_view->priv->children);
5029 while (iter != NULL)
5031 GtkTextViewChild *vc = iter->data;
5033 (* callback) (vc->widget, callback_data);
5035 iter = g_slist_next (iter);
5038 g_slist_free (copy);
5041 #define CURSOR_ON_MULTIPLIER 2
5042 #define CURSOR_OFF_MULTIPLIER 1
5043 #define CURSOR_PEND_MULTIPLIER 3
5044 #define CURSOR_DIVIDER 3
5047 cursor_blinks (GtkTextView *text_view)
5049 GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (text_view));
5052 #ifdef DEBUG_VALIDATION_AND_SCROLLING
5055 if (gtk_get_debug_flags () & GTK_DEBUG_UPDATES)
5058 g_object_get (settings, "gtk-cursor-blink", &blink, NULL);
5063 if (text_view->priv->editable)
5065 GtkTextMark *insert;
5068 insert = gtk_text_buffer_get_insert (get_buffer (text_view));
5069 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, insert);
5071 if (gtk_text_iter_editable (&iter, text_view->priv->editable))
5079 get_cursor_time (GtkTextView *text_view)
5081 GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (text_view));
5084 g_object_get (settings, "gtk-cursor-blink-time", &time, NULL);
5090 get_cursor_blink_timeout (GtkTextView *text_view)
5092 GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (text_view));
5095 g_object_get (settings, "gtk-cursor-blink-timeout", &time, NULL);
5106 blink_cb (gpointer data)
5108 GtkTextView *text_view;
5109 GtkTextViewPrivate *priv;
5113 text_view = GTK_TEXT_VIEW (data);
5114 priv = text_view->priv;
5116 if (!gtk_widget_has_focus (GTK_WIDGET (text_view)))
5118 g_warning ("GtkTextView - did not receive focus-out-event. If you\n"
5119 "connect a handler to this signal, it must return\n"
5120 "FALSE so the text view gets the event as well");
5122 gtk_text_view_check_cursor_blink (text_view);
5127 g_assert (priv->layout);
5128 g_assert (priv->cursor_visible);
5130 visible = gtk_text_layout_get_cursor_visible (priv->layout);
5132 blink_timeout = get_cursor_blink_timeout (text_view);
5133 if (priv->blink_time > 1000 * blink_timeout &&
5134 blink_timeout < G_MAXINT/1000)
5136 /* we've blinked enough without the user doing anything, stop blinking */
5138 priv->blink_timeout = 0;
5141 priv->blink_timeout = gdk_threads_add_timeout (get_cursor_time (text_view) * CURSOR_OFF_MULTIPLIER / CURSOR_DIVIDER,
5146 priv->blink_timeout = gdk_threads_add_timeout (get_cursor_time (text_view) * CURSOR_ON_MULTIPLIER / CURSOR_DIVIDER,
5149 priv->blink_time += get_cursor_time (text_view);
5152 /* Block changed_handler while changing the layout's cursor visibility
5153 * because it would expose the whole paragraph. Instead, we expose
5154 * the cursor's area(s) manually below.
5156 g_signal_handlers_block_by_func (priv->layout,
5159 gtk_text_layout_set_cursor_visible (priv->layout, !visible);
5160 g_signal_handlers_unblock_by_func (priv->layout,
5164 text_window_invalidate_cursors (priv->text_window);
5166 /* Remove ourselves */
5172 gtk_text_view_stop_cursor_blink (GtkTextView *text_view)
5174 if (text_view->priv->blink_timeout)
5176 g_source_remove (text_view->priv->blink_timeout);
5177 text_view->priv->blink_timeout = 0;
5182 gtk_text_view_check_cursor_blink (GtkTextView *text_view)
5184 GtkTextViewPrivate *priv = text_view->priv;
5186 if (priv->layout != NULL &&
5187 priv->cursor_visible &&
5188 gtk_widget_has_focus (GTK_WIDGET (text_view)))
5190 if (cursor_blinks (text_view))
5192 if (priv->blink_timeout == 0)
5194 gtk_text_layout_set_cursor_visible (priv->layout, TRUE);
5196 priv->blink_timeout = gdk_threads_add_timeout (get_cursor_time (text_view) * CURSOR_OFF_MULTIPLIER / CURSOR_DIVIDER,
5203 gtk_text_view_stop_cursor_blink (text_view);
5204 gtk_text_layout_set_cursor_visible (priv->layout, TRUE);
5209 gtk_text_view_stop_cursor_blink (text_view);
5210 gtk_text_layout_set_cursor_visible (priv->layout, FALSE);
5215 gtk_text_view_pend_cursor_blink (GtkTextView *text_view)
5217 GtkTextViewPrivate *priv = text_view->priv;
5219 if (priv->layout != NULL &&
5220 priv->cursor_visible &&
5221 gtk_widget_has_focus (GTK_WIDGET (text_view)) &&
5222 cursor_blinks (text_view))
5224 gtk_text_view_stop_cursor_blink (text_view);
5225 gtk_text_layout_set_cursor_visible (priv->layout, TRUE);
5227 priv->blink_timeout = gdk_threads_add_timeout (get_cursor_time (text_view) * CURSOR_PEND_MULTIPLIER / CURSOR_DIVIDER,
5234 gtk_text_view_reset_blink_time (GtkTextView *text_view)
5236 GtkTextViewPrivate *priv = text_view->priv;
5238 priv->blink_time = 0;
5243 * Key binding handlers
5247 gtk_text_view_move_iter_by_lines (GtkTextView *text_view,
5248 GtkTextIter *newplace,
5251 gboolean ret = TRUE;
5255 ret = gtk_text_layout_move_iter_to_previous_line (text_view->priv->layout, newplace);
5261 ret = gtk_text_layout_move_iter_to_next_line (text_view->priv->layout, newplace);
5269 move_cursor (GtkTextView *text_view,
5270 const GtkTextIter *new_location,
5271 gboolean extend_selection)
5273 if (extend_selection)
5274 gtk_text_buffer_move_mark_by_name (get_buffer (text_view),
5278 gtk_text_buffer_place_cursor (get_buffer (text_view),
5280 gtk_text_view_check_cursor_blink (text_view);
5284 gtk_text_view_move_cursor_internal (GtkTextView *text_view,
5285 GtkMovementStep step,
5287 gboolean extend_selection)
5289 GtkTextViewPrivate *priv;
5291 GtkTextIter newplace;
5292 gboolean cancel_selection = FALSE;
5293 gint cursor_x_pos = 0;
5294 GtkDirectionType leave_direction = -1;
5296 priv = text_view->priv;
5298 if (!priv->cursor_visible)
5300 GtkScrollStep scroll_step;
5304 case GTK_MOVEMENT_VISUAL_POSITIONS:
5305 leave_direction = count > 0 ? GTK_DIR_RIGHT : GTK_DIR_LEFT;
5307 case GTK_MOVEMENT_LOGICAL_POSITIONS:
5308 case GTK_MOVEMENT_WORDS:
5309 scroll_step = GTK_SCROLL_HORIZONTAL_STEPS;
5311 case GTK_MOVEMENT_DISPLAY_LINE_ENDS:
5312 scroll_step = GTK_SCROLL_HORIZONTAL_ENDS;
5314 case GTK_MOVEMENT_DISPLAY_LINES:
5315 leave_direction = count > 0 ? GTK_DIR_DOWN : GTK_DIR_UP;
5317 case GTK_MOVEMENT_PARAGRAPHS:
5318 case GTK_MOVEMENT_PARAGRAPH_ENDS:
5319 scroll_step = GTK_SCROLL_STEPS;
5321 case GTK_MOVEMENT_PAGES:
5322 scroll_step = GTK_SCROLL_PAGES;
5324 case GTK_MOVEMENT_HORIZONTAL_PAGES:
5325 scroll_step = GTK_SCROLL_HORIZONTAL_PAGES;
5327 case GTK_MOVEMENT_BUFFER_ENDS:
5328 scroll_step = GTK_SCROLL_ENDS;
5331 scroll_step = GTK_SCROLL_PAGES;
5335 if (!gtk_text_view_move_viewport (text_view, scroll_step, count))
5337 if (leave_direction != -1 &&
5338 !gtk_widget_keynav_failed (GTK_WIDGET (text_view),
5341 g_signal_emit_by_name (text_view, "move-focus", leave_direction);
5348 gtk_text_view_reset_im_context (text_view);
5350 if (step == GTK_MOVEMENT_PAGES)
5352 if (!gtk_text_view_scroll_pages (text_view, count, extend_selection))
5353 gtk_widget_error_bell (GTK_WIDGET (text_view));
5355 gtk_text_view_check_cursor_blink (text_view);
5356 gtk_text_view_pend_cursor_blink (text_view);
5359 else if (step == GTK_MOVEMENT_HORIZONTAL_PAGES)
5361 if (!gtk_text_view_scroll_hpages (text_view, count, extend_selection))
5362 gtk_widget_error_bell (GTK_WIDGET (text_view));
5364 gtk_text_view_check_cursor_blink (text_view);
5365 gtk_text_view_pend_cursor_blink (text_view);
5369 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
5370 gtk_text_buffer_get_insert (get_buffer (text_view)));
5372 if (! extend_selection)
5374 GtkTextIter sel_bound;
5376 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &sel_bound,
5377 gtk_text_buffer_get_selection_bound (get_buffer (text_view)));
5379 /* if we move forward, assume the cursor is at the end of the selection;
5380 * if we move backward, assume the cursor is at the start
5383 gtk_text_iter_order (&sel_bound, &insert);
5385 gtk_text_iter_order (&insert, &sel_bound);
5387 /* if we actually have a selection, just move *to* the beginning/end
5388 * of the selection and not *from* there on LOGICAL_POSITIONS
5389 * and VISUAL_POSITIONS movement
5391 if (! gtk_text_iter_equal (&sel_bound, &insert))
5392 cancel_selection = TRUE;
5397 if (step == GTK_MOVEMENT_DISPLAY_LINES)
5398 gtk_text_view_get_virtual_cursor_pos (text_view, &insert, &cursor_x_pos, NULL);
5402 case GTK_MOVEMENT_LOGICAL_POSITIONS:
5403 if (! cancel_selection)
5404 gtk_text_iter_forward_visible_cursor_positions (&newplace, count);
5407 case GTK_MOVEMENT_VISUAL_POSITIONS:
5408 if (! cancel_selection)
5409 gtk_text_layout_move_iter_visually (priv->layout,
5413 case GTK_MOVEMENT_WORDS:
5415 gtk_text_iter_backward_visible_word_starts (&newplace, -count);
5418 if (!gtk_text_iter_forward_visible_word_ends (&newplace, count))
5419 gtk_text_iter_forward_to_line_end (&newplace);
5423 case GTK_MOVEMENT_DISPLAY_LINES:
5426 leave_direction = GTK_DIR_UP;
5428 if (gtk_text_view_move_iter_by_lines (text_view, &newplace, count))
5429 gtk_text_layout_move_iter_to_x (priv->layout, &newplace, cursor_x_pos);
5431 gtk_text_iter_set_line_offset (&newplace, 0);
5435 leave_direction = GTK_DIR_DOWN;
5437 if (gtk_text_view_move_iter_by_lines (text_view, &newplace, count))
5438 gtk_text_layout_move_iter_to_x (priv->layout, &newplace, cursor_x_pos);
5440 gtk_text_iter_forward_to_line_end (&newplace);
5444 case GTK_MOVEMENT_DISPLAY_LINE_ENDS:
5446 gtk_text_view_move_iter_by_lines (text_view, &newplace, --count);
5447 else if (count < -1)
5448 gtk_text_view_move_iter_by_lines (text_view, &newplace, ++count);
5451 gtk_text_layout_move_iter_to_line_end (priv->layout, &newplace, count);
5454 case GTK_MOVEMENT_PARAGRAPHS:
5457 if (!gtk_text_iter_ends_line (&newplace))
5459 gtk_text_iter_forward_to_line_end (&newplace);
5462 gtk_text_iter_forward_visible_lines (&newplace, count);
5463 gtk_text_iter_forward_to_line_end (&newplace);
5467 if (gtk_text_iter_get_line_offset (&newplace) > 0)
5468 gtk_text_iter_set_line_offset (&newplace, 0);
5469 gtk_text_iter_forward_visible_lines (&newplace, count);
5470 gtk_text_iter_set_line_offset (&newplace, 0);
5474 case GTK_MOVEMENT_PARAGRAPH_ENDS:
5477 if (!gtk_text_iter_ends_line (&newplace))
5478 gtk_text_iter_forward_to_line_end (&newplace);
5482 gtk_text_iter_set_line_offset (&newplace, 0);
5486 case GTK_MOVEMENT_BUFFER_ENDS:
5488 gtk_text_buffer_get_end_iter (get_buffer (text_view), &newplace);
5490 gtk_text_buffer_get_iter_at_offset (get_buffer (text_view), &newplace, 0);
5497 /* call move_cursor() even if the cursor hasn't moved, since it
5498 cancels the selection
5500 move_cursor (text_view, &newplace, extend_selection);
5502 if (!gtk_text_iter_equal (&insert, &newplace))
5504 DV(g_print (G_STRLOC": scrolling onscreen\n"));
5505 gtk_text_view_scroll_mark_onscreen (text_view,
5506 gtk_text_buffer_get_insert (get_buffer (text_view)));
5508 if (step == GTK_MOVEMENT_DISPLAY_LINES)
5509 gtk_text_view_set_virtual_cursor_pos (text_view, cursor_x_pos, -1);
5511 else if (leave_direction != -1)
5513 if (!gtk_widget_keynav_failed (GTK_WIDGET (text_view),
5516 g_signal_emit_by_name (text_view, "move-focus", leave_direction);
5519 else if (! cancel_selection)
5521 gtk_widget_error_bell (GTK_WIDGET (text_view));
5524 gtk_text_view_check_cursor_blink (text_view);
5525 gtk_text_view_pend_cursor_blink (text_view);
5529 gtk_text_view_move_cursor (GtkTextView *text_view,
5530 GtkMovementStep step,
5532 gboolean extend_selection)
5534 gtk_text_view_move_cursor_internal (text_view, step, count, extend_selection);
5538 gtk_text_view_move_viewport (GtkTextView *text_view,
5542 GtkAdjustment *adjustment;
5547 case GTK_SCROLL_STEPS:
5548 case GTK_SCROLL_PAGES:
5549 case GTK_SCROLL_ENDS:
5550 adjustment = get_vadjustment (text_view);
5552 case GTK_SCROLL_HORIZONTAL_STEPS:
5553 case GTK_SCROLL_HORIZONTAL_PAGES:
5554 case GTK_SCROLL_HORIZONTAL_ENDS:
5555 adjustment = get_hadjustment (text_view);
5558 adjustment = get_vadjustment (text_view);
5564 case GTK_SCROLL_STEPS:
5565 case GTK_SCROLL_HORIZONTAL_STEPS:
5566 increment = adjustment->step_increment;
5568 case GTK_SCROLL_PAGES:
5569 case GTK_SCROLL_HORIZONTAL_PAGES:
5570 increment = adjustment->page_increment;
5572 case GTK_SCROLL_ENDS:
5573 case GTK_SCROLL_HORIZONTAL_ENDS:
5574 increment = adjustment->upper - adjustment->lower;
5581 return set_adjustment_clamped (adjustment, adjustment->value + count * increment);
5585 gtk_text_view_set_anchor (GtkTextView *text_view)
5589 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
5590 gtk_text_buffer_get_insert (get_buffer (text_view)));
5592 gtk_text_buffer_create_mark (get_buffer (text_view), "anchor", &insert, TRUE);
5596 gtk_text_view_scroll_pages (GtkTextView *text_view,
5598 gboolean extend_selection)
5600 GtkTextViewPrivate *priv;
5602 gint cursor_x_pos, cursor_y_pos;
5603 GtkTextMark *insert_mark;
5604 GtkTextIter old_insert;
5605 GtkTextIter new_insert;
5611 priv = text_view->priv;
5613 g_return_val_if_fail (priv->vadjustment != NULL, FALSE);
5615 adj = priv->vadjustment;
5617 insert_mark = gtk_text_buffer_get_insert (get_buffer (text_view));
5619 /* Make sure we start from the current cursor position, even
5620 * if it was offscreen, but don't queue more scrolls if we're
5623 if (priv->pending_scroll)
5624 cancel_pending_scroll (text_view);
5626 gtk_text_view_scroll_mark_onscreen (text_view, insert_mark);
5628 /* Validate the region that will be brought into view by the cursor motion
5630 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
5631 &old_insert, insert_mark);
5635 gtk_text_view_get_first_para_iter (text_view, &anchor);
5636 y0 = adj->page_size;
5637 y1 = adj->page_size + count * adj->page_increment;
5641 gtk_text_view_get_first_para_iter (text_view, &anchor);
5642 y0 = count * adj->page_increment + adj->page_size;
5646 gtk_text_layout_validate_yrange (priv->layout, &anchor, y0, y1);
5647 /* FIXME do we need to update the adjustment ranges here? */
5649 new_insert = old_insert;
5651 if (count < 0 && adj->value <= (adj->lower + 1e-12))
5653 /* already at top, just be sure we are at offset 0 */
5654 gtk_text_buffer_get_start_iter (get_buffer (text_view), &new_insert);
5655 move_cursor (text_view, &new_insert, extend_selection);
5657 else if (count > 0 && adj->value >= (adj->upper - adj->page_size - 1e-12))
5659 /* already at bottom, just be sure we are at the end */
5660 gtk_text_buffer_get_end_iter (get_buffer (text_view), &new_insert);
5661 move_cursor (text_view, &new_insert, extend_selection);
5665 gtk_text_view_get_virtual_cursor_pos (text_view, NULL, &cursor_x_pos, &cursor_y_pos);
5667 oldval = adj->value;
5668 newval = adj->value;
5670 newval += count * adj->page_increment;
5672 set_adjustment_clamped (adj, newval);
5673 cursor_y_pos += adj->value - oldval;
5675 gtk_text_layout_get_iter_at_pixel (priv->layout, &new_insert, cursor_x_pos, cursor_y_pos);
5676 clamp_iter_onscreen (text_view, &new_insert);
5677 move_cursor (text_view, &new_insert, extend_selection);
5679 gtk_text_view_set_virtual_cursor_pos (text_view, cursor_x_pos, cursor_y_pos);
5682 /* Adjust to have the cursor _entirely_ onscreen, move_mark_onscreen
5683 * only guarantees 1 pixel onscreen.
5685 DV(g_print (G_STRLOC": scrolling onscreen\n"));
5686 gtk_text_view_scroll_mark_onscreen (text_view, insert_mark);
5688 return !gtk_text_iter_equal (&old_insert, &new_insert);
5692 gtk_text_view_scroll_hpages (GtkTextView *text_view,
5694 gboolean extend_selection)
5696 GtkTextViewPrivate *priv;
5698 gint cursor_x_pos, cursor_y_pos;
5699 GtkTextMark *insert_mark;
5700 GtkTextIter old_insert;
5701 GtkTextIter new_insert;
5706 priv = text_view->priv;
5708 g_return_val_if_fail (priv->hadjustment != NULL, FALSE);
5710 adj = priv->hadjustment;
5712 insert_mark = gtk_text_buffer_get_insert (get_buffer (text_view));
5714 /* Make sure we start from the current cursor position, even
5715 * if it was offscreen, but don't queue more scrolls if we're
5718 if (priv->pending_scroll)
5719 cancel_pending_scroll (text_view);
5721 gtk_text_view_scroll_mark_onscreen (text_view, insert_mark);
5723 /* Validate the line that we're moving within.
5725 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
5726 &old_insert, insert_mark);
5728 gtk_text_layout_get_line_yrange (priv->layout, &old_insert, &y, &height);
5729 gtk_text_layout_validate_yrange (priv->layout, &old_insert, y, y + height);
5730 /* FIXME do we need to update the adjustment ranges here? */
5732 new_insert = old_insert;
5734 if (count < 0 && adj->value <= (adj->lower + 1e-12))
5736 /* already at far left, just be sure we are at offset 0 */
5737 gtk_text_iter_set_line_offset (&new_insert, 0);
5738 move_cursor (text_view, &new_insert, extend_selection);
5740 else if (count > 0 && adj->value >= (adj->upper - adj->page_size - 1e-12))
5742 /* already at far right, just be sure we are at the end */
5743 if (!gtk_text_iter_ends_line (&new_insert))
5744 gtk_text_iter_forward_to_line_end (&new_insert);
5745 move_cursor (text_view, &new_insert, extend_selection);
5749 gtk_text_view_get_virtual_cursor_pos (text_view, NULL, &cursor_x_pos, &cursor_y_pos);
5751 oldval = adj->value;
5752 newval = adj->value;
5754 newval += count * adj->page_increment;
5756 set_adjustment_clamped (adj, newval);
5757 cursor_x_pos += adj->value - oldval;
5759 gtk_text_layout_get_iter_at_pixel (priv->layout, &new_insert, cursor_x_pos, cursor_y_pos);
5760 clamp_iter_onscreen (text_view, &new_insert);
5761 move_cursor (text_view, &new_insert, extend_selection);
5763 gtk_text_view_set_virtual_cursor_pos (text_view, cursor_x_pos, cursor_y_pos);
5766 /* FIXME for lines shorter than the overall widget width, this results in a
5767 * "bounce" effect as we scroll to the right of the widget, then scroll
5768 * back to get the end of the line onscreen.
5769 * http://bugzilla.gnome.org/show_bug.cgi?id=68963
5772 /* Adjust to have the cursor _entirely_ onscreen, move_mark_onscreen
5773 * only guarantees 1 pixel onscreen.
5775 DV(g_print (G_STRLOC": scrolling onscreen\n"));
5776 gtk_text_view_scroll_mark_onscreen (text_view, insert_mark);
5778 return !gtk_text_iter_equal (&old_insert, &new_insert);
5782 whitespace (gunichar ch, gpointer user_data)
5784 return (ch == ' ' || ch == '\t');
5788 not_whitespace (gunichar ch, gpointer user_data)
5790 return !whitespace (ch, user_data);
5794 find_whitepace_region (const GtkTextIter *center,
5795 GtkTextIter *start, GtkTextIter *end)
5800 if (gtk_text_iter_backward_find_char (start, not_whitespace, NULL, NULL))
5801 gtk_text_iter_forward_char (start); /* we want the first whitespace... */
5802 if (whitespace (gtk_text_iter_get_char (end), NULL))
5803 gtk_text_iter_forward_find_char (end, not_whitespace, NULL, NULL);
5805 return !gtk_text_iter_equal (start, end);
5809 gtk_text_view_insert_at_cursor (GtkTextView *text_view,
5812 if (!gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), str, -1,
5813 text_view->priv->editable))
5815 gtk_widget_error_bell (GTK_WIDGET (text_view));
5820 gtk_text_view_delete_from_cursor (GtkTextView *text_view,
5824 GtkTextViewPrivate *priv;
5828 gboolean leave_one = FALSE;
5830 priv = text_view->priv;
5832 gtk_text_view_reset_im_context (text_view);
5834 if (type == GTK_DELETE_CHARS)
5836 /* Char delete deletes the selection, if one exists */
5837 if (gtk_text_buffer_delete_selection (get_buffer (text_view), TRUE,
5842 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
5843 gtk_text_buffer_get_insert (get_buffer (text_view)));
5850 case GTK_DELETE_CHARS:
5851 gtk_text_iter_forward_cursor_positions (&end, count);
5854 case GTK_DELETE_WORD_ENDS:
5856 gtk_text_iter_forward_word_ends (&end, count);
5858 gtk_text_iter_backward_word_starts (&start, 0 - count);
5861 case GTK_DELETE_WORDS:
5864 case GTK_DELETE_DISPLAY_LINE_ENDS:
5867 case GTK_DELETE_DISPLAY_LINES:
5870 case GTK_DELETE_PARAGRAPH_ENDS:
5873 /* If we're already at a newline, we need to
5874 * simply delete that newline, instead of
5875 * moving to the next one.
5877 if (gtk_text_iter_ends_line (&end))
5879 gtk_text_iter_forward_line (&end);
5885 if (!gtk_text_iter_forward_to_line_end (&end))
5893 if (gtk_text_iter_starts_line (&start))
5895 gtk_text_iter_backward_line (&start);
5896 if (!gtk_text_iter_ends_line (&end))
5897 gtk_text_iter_forward_to_line_end (&start);
5901 gtk_text_iter_set_line_offset (&start, 0);
5905 gtk_text_iter_backward_lines (&start, -count);
5909 case GTK_DELETE_PARAGRAPHS:
5912 gtk_text_iter_set_line_offset (&start, 0);
5913 gtk_text_iter_forward_to_line_end (&end);
5915 /* Do the lines beyond the first. */
5918 gtk_text_iter_forward_to_line_end (&end);
5924 /* FIXME negative count? */
5928 case GTK_DELETE_WHITESPACE:
5930 find_whitepace_region (&insert, &start, &end);
5938 if (!gtk_text_iter_equal (&start, &end))
5940 gtk_text_buffer_begin_user_action (get_buffer (text_view));
5942 if (gtk_text_buffer_delete_interactive (get_buffer (text_view), &start, &end,
5946 gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view),
5952 gtk_widget_error_bell (GTK_WIDGET (text_view));
5955 gtk_text_buffer_end_user_action (get_buffer (text_view));
5956 gtk_text_view_set_virtual_cursor_pos (text_view, -1, -1);
5958 DV(g_print (G_STRLOC": scrolling onscreen\n"));
5959 gtk_text_view_scroll_mark_onscreen (text_view,
5960 gtk_text_buffer_get_insert (get_buffer (text_view)));
5964 gtk_widget_error_bell (GTK_WIDGET (text_view));
5969 gtk_text_view_backspace (GtkTextView *text_view)
5971 GtkTextViewPrivate *priv;
5974 priv = text_view->priv;
5976 gtk_text_view_reset_im_context (text_view);
5978 /* Backspace deletes the selection, if one exists */
5979 if (gtk_text_buffer_delete_selection (get_buffer (text_view), TRUE,
5983 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
5985 gtk_text_buffer_get_insert (get_buffer (text_view)));
5987 if (gtk_text_buffer_backspace (get_buffer (text_view), &insert,
5988 TRUE, priv->editable))
5990 gtk_text_view_set_virtual_cursor_pos (text_view, -1, -1);
5991 DV(g_print (G_STRLOC": scrolling onscreen\n"));
5992 gtk_text_view_scroll_mark_onscreen (text_view,
5993 gtk_text_buffer_get_insert (get_buffer (text_view)));
5997 gtk_widget_error_bell (GTK_WIDGET (text_view));
6002 gtk_text_view_cut_clipboard (GtkTextView *text_view)
6004 GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view),
6005 GDK_SELECTION_CLIPBOARD);
6007 gtk_text_buffer_cut_clipboard (get_buffer (text_view),
6009 text_view->priv->editable);
6010 DV(g_print (G_STRLOC": scrolling onscreen\n"));
6011 gtk_text_view_scroll_mark_onscreen (text_view,
6012 gtk_text_buffer_get_insert (get_buffer (text_view)));
6016 gtk_text_view_copy_clipboard (GtkTextView *text_view)
6018 GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view),
6019 GDK_SELECTION_CLIPBOARD);
6021 gtk_text_buffer_copy_clipboard (get_buffer (text_view),
6024 /* on copy do not scroll, we are already onscreen */
6028 gtk_text_view_paste_clipboard (GtkTextView *text_view)
6030 GtkClipboard *clipboard = gtk_widget_get_clipboard (GTK_WIDGET (text_view),
6031 GDK_SELECTION_CLIPBOARD);
6033 gtk_text_buffer_paste_clipboard (get_buffer (text_view),
6036 text_view->priv->editable);
6040 gtk_text_view_paste_done_handler (GtkTextBuffer *buffer,
6041 GtkClipboard *clipboard,
6044 GtkTextView *text_view = data;
6045 GtkTextViewPrivate *priv;
6047 priv = text_view->priv;
6049 if (priv->scroll_after_paste)
6051 DV(g_print (G_STRLOC": scrolling onscreen\n"));
6052 gtk_text_view_scroll_mark_onscreen (text_view, gtk_text_buffer_get_insert (buffer));
6055 priv->scroll_after_paste = TRUE;
6059 gtk_text_view_toggle_overwrite (GtkTextView *text_view)
6061 GtkTextViewPrivate *priv = text_view->priv;
6063 if (priv->text_window)
6064 text_window_invalidate_cursors (priv->text_window);
6066 priv->overwrite_mode = !priv->overwrite_mode;
6069 gtk_text_layout_set_overwrite_mode (priv->layout,
6070 priv->overwrite_mode && priv->editable);
6072 if (priv->text_window)
6073 text_window_invalidate_cursors (priv->text_window);
6075 gtk_text_view_pend_cursor_blink (text_view);
6077 g_object_notify (G_OBJECT (text_view), "overwrite");
6081 * gtk_text_view_get_overwrite:
6082 * @text_view: a #GtkTextView
6084 * Returns whether the #GtkTextView is in overwrite mode or not.
6086 * Return value: whether @text_view is in overwrite mode or not.
6091 gtk_text_view_get_overwrite (GtkTextView *text_view)
6093 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
6095 return text_view->priv->overwrite_mode;
6099 * gtk_text_view_set_overwrite:
6100 * @text_view: a #GtkTextView
6101 * @overwrite: %TRUE to turn on overwrite mode, %FALSE to turn it off
6103 * Changes the #GtkTextView overwrite mode.
6108 gtk_text_view_set_overwrite (GtkTextView *text_view,
6111 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
6112 overwrite = overwrite != FALSE;
6114 if (text_view->priv->overwrite_mode != overwrite)
6115 gtk_text_view_toggle_overwrite (text_view);
6119 * gtk_text_view_set_accepts_tab:
6120 * @text_view: A #GtkTextView
6121 * @accepts_tab: %TRUE if pressing the Tab key should insert a tab
6122 * character, %FALSE, if pressing the Tab key should move the
6125 * Sets the behavior of the text widget when the Tab key is pressed.
6126 * If @accepts_tab is %TRUE, a tab character is inserted. If @accepts_tab
6127 * is %FALSE the keyboard focus is moved to the next widget in the focus
6133 gtk_text_view_set_accepts_tab (GtkTextView *text_view,
6134 gboolean accepts_tab)
6136 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
6138 accepts_tab = accepts_tab != FALSE;
6140 if (text_view->priv->accepts_tab != accepts_tab)
6142 text_view->priv->accepts_tab = accepts_tab;
6144 g_object_notify (G_OBJECT (text_view), "accepts-tab");
6149 * gtk_text_view_get_accepts_tab:
6150 * @text_view: A #GtkTextView
6152 * Returns whether pressing the Tab key inserts a tab characters.
6153 * gtk_text_view_set_accepts_tab().
6155 * Return value: %TRUE if pressing the Tab key inserts a tab character,
6156 * %FALSE if pressing the Tab key moves the keyboard focus.
6161 gtk_text_view_get_accepts_tab (GtkTextView *text_view)
6163 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
6165 return text_view->priv->accepts_tab;
6169 gtk_text_view_compat_move_focus (GtkTextView *text_view,
6170 GtkDirectionType direction_type)
6172 GSignalInvocationHint *hint = g_signal_get_invocation_hint (text_view);
6174 /* as of GTK+ 2.12, the "move-focus" signal has been moved to GtkWidget,
6175 * the evil code below makes sure that both emitting the signal and
6176 * calling the virtual function directly continue to work as expetcted
6179 if (hint->signal_id == g_signal_lookup ("move-focus", GTK_TYPE_WIDGET))
6181 /* if this is a signal emission, chain up */
6185 g_signal_chain_from_overridden_handler (text_view,
6186 direction_type, &retval);
6190 /* otherwise emit the signal, since somebody called the virtual
6194 g_signal_emit_by_name (text_view, "move-focus", direction_type);
6203 gtk_text_view_unselect (GtkTextView *text_view)
6207 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
6208 gtk_text_buffer_get_insert (get_buffer (text_view)));
6210 gtk_text_buffer_move_mark (get_buffer (text_view),
6211 gtk_text_buffer_get_selection_bound (get_buffer (text_view)),
6216 get_iter_at_pointer (GtkTextView *text_view,
6222 GtkTextViewPrivate *priv;
6223 gint xcoord, ycoord;
6224 GdkModifierType state;
6226 priv = text_view->priv;
6228 gdk_window_get_device_position (priv->text_window->bin_window,
6229 device, &xcoord, &ycoord, &state);
6231 gtk_text_layout_get_iter_at_pixel (priv->layout,
6233 xcoord + priv->xoffset,
6234 ycoord + priv->yoffset);
6243 move_mark_to_pointer_and_scroll (GtkTextView *text_view,
6244 const gchar *mark_name,
6247 GtkTextIter newplace;
6250 get_iter_at_pointer (text_view, device, &newplace, NULL, NULL);
6252 mark = gtk_text_buffer_get_mark (get_buffer (text_view), mark_name);
6254 /* This may invalidate the layout */
6255 DV(g_print (G_STRLOC": move mark\n"));
6257 gtk_text_buffer_move_mark (get_buffer (text_view),
6261 DV(g_print (G_STRLOC": scrolling onscreen\n"));
6262 gtk_text_view_scroll_mark_onscreen (text_view, mark);
6264 DV (g_print ("first validate idle leaving %s is %d\n",
6265 G_STRLOC, text_view->priv->first_validate_idle));
6269 selection_scan_timeout (gpointer data)
6271 GtkTextView *text_view;
6273 text_view = GTK_TEXT_VIEW (data);
6275 gtk_text_view_scroll_mark_onscreen (text_view,
6276 gtk_text_buffer_get_insert (get_buffer (text_view)));
6278 return TRUE; /* remain installed. */
6281 #define UPPER_OFFSET_ANCHOR 0.8
6282 #define LOWER_OFFSET_ANCHOR 0.2
6285 check_scroll (gdouble offset, GtkAdjustment *adj)
6287 if ((offset > UPPER_OFFSET_ANCHOR &&
6288 adj->value + adj->page_size < adj->upper) ||
6289 (offset < LOWER_OFFSET_ANCHOR &&
6290 adj->value > adj->lower))
6297 drag_scan_timeout (gpointer data)
6299 GtkTextView *text_view;
6300 GtkTextViewPrivate *priv;
6301 GtkTextIter newplace;
6302 gint x, y, width, height;
6303 gdouble pointer_xoffset, pointer_yoffset;
6305 text_view = GTK_TEXT_VIEW (data);
6306 priv = text_view->priv;
6308 get_iter_at_pointer (text_view, priv->dnd_device, &newplace, &x, &y);
6309 gdk_drawable_get_size (priv->text_window->bin_window, &width, &height);
6311 gtk_text_buffer_move_mark (get_buffer (text_view),
6315 pointer_xoffset = (gdouble) x / width;
6316 pointer_yoffset = (gdouble) y / height;
6318 if (check_scroll (pointer_xoffset, priv->hadjustment) ||
6319 check_scroll (pointer_yoffset, priv->vadjustment))
6321 /* do not make offsets surpass lower nor upper anchors, this makes
6322 * scrolling speed relative to the distance of the pointer to the
6323 * anchors when it moves beyond them.
6325 pointer_xoffset = CLAMP (pointer_xoffset, LOWER_OFFSET_ANCHOR, UPPER_OFFSET_ANCHOR);
6326 pointer_yoffset = CLAMP (pointer_yoffset, LOWER_OFFSET_ANCHOR, UPPER_OFFSET_ANCHOR);
6328 gtk_text_view_scroll_to_mark (text_view,
6330 0., TRUE, pointer_xoffset, pointer_yoffset);
6341 } SelectionGranularity;
6344 * Move @start and @end to the boundaries of the selection unit (indicated by
6345 * @granularity) which contained @start initially.
6346 * If the selction unit is SELECT_WORDS and @start is not contained in a word
6347 * the selection is extended to all the white spaces between the end of the
6348 * word preceding @start and the start of the one following.
6351 extend_selection (GtkTextView *text_view,
6352 SelectionGranularity granularity,
6358 if (granularity == SELECT_WORDS)
6360 if (gtk_text_iter_inside_word (start))
6362 if (!gtk_text_iter_starts_word (start))
6363 gtk_text_iter_backward_visible_word_start (start);
6365 if (!gtk_text_iter_ends_word (end))
6367 if (!gtk_text_iter_forward_visible_word_end (end))
6368 gtk_text_iter_forward_to_end (end);
6376 if (gtk_text_iter_backward_visible_word_start (&tmp))
6377 gtk_text_iter_forward_visible_word_end (&tmp);
6379 if (gtk_text_iter_get_line (&tmp) == gtk_text_iter_get_line (start))
6382 gtk_text_iter_set_line_offset (start, 0);
6385 if (!gtk_text_iter_forward_visible_word_end (&tmp))
6386 gtk_text_iter_forward_to_end (&tmp);
6388 if (gtk_text_iter_ends_word (&tmp))
6389 gtk_text_iter_backward_visible_word_start (&tmp);
6391 if (gtk_text_iter_get_line (&tmp) == gtk_text_iter_get_line (end))
6394 gtk_text_iter_forward_to_line_end (end);
6397 else if (granularity == SELECT_LINES)
6399 if (gtk_text_view_starts_display_line (text_view, start))
6401 /* If on a display line boundary, we assume the user
6402 * clicked off the end of a line and we therefore select
6403 * the line before the boundary.
6405 gtk_text_view_backward_display_line_start (text_view, start);
6409 /* start isn't on the start of a line, so we move it to the
6410 * start, and move end to the end unless it's already there.
6412 gtk_text_view_backward_display_line_start (text_view, start);
6414 if (!gtk_text_view_starts_display_line (text_view, end))
6415 gtk_text_view_forward_display_line_end (text_view, end);
6423 SelectionGranularity granularity;
6424 GtkTextMark *orig_start;
6425 GtkTextMark *orig_end;
6429 selection_data_free (SelectionData *data)
6431 if (data->orig_start != NULL)
6432 gtk_text_buffer_delete_mark (gtk_text_mark_get_buffer (data->orig_start),
6434 if (data->orig_end != NULL)
6435 gtk_text_buffer_delete_mark (gtk_text_mark_get_buffer (data->orig_end),
6441 selection_motion_event_handler (GtkTextView *text_view,
6442 GdkEventMotion *event,
6443 SelectionData *data)
6445 GtkTextViewPrivate *priv;
6447 priv = text_view->priv;
6448 gdk_event_request_motions (event);
6450 if (priv->grab_device != event->device)
6453 if (data->granularity == SELECT_CHARACTERS)
6455 move_mark_to_pointer_and_scroll (text_view, "insert", event->device);
6459 GtkTextIter cursor, start, end;
6460 GtkTextIter orig_start, orig_end;
6461 GtkTextBuffer *buffer;
6463 buffer = get_buffer (text_view);
6465 gtk_text_buffer_get_iter_at_mark (buffer, &orig_start, data->orig_start);
6466 gtk_text_buffer_get_iter_at_mark (buffer, &orig_end, data->orig_end);
6468 get_iter_at_pointer (text_view, event->device, &cursor, NULL, NULL);
6471 extend_selection (text_view, data->granularity, &start, &end);
6473 /* either the selection extends to the front, or end (or not) */
6474 if (gtk_text_iter_compare (&cursor, &orig_start) < 0)
6475 gtk_text_buffer_select_range (buffer, &start, &orig_end);
6477 gtk_text_buffer_select_range (buffer, &end, &orig_start);
6479 gtk_text_view_scroll_mark_onscreen (text_view,
6480 gtk_text_buffer_get_insert (buffer));
6483 /* If we had to scroll offscreen, insert a timeout to do so
6484 * again. Note that in the timeout, even if the mouse doesn't
6485 * move, due to this scroll xoffset/yoffset will have changed
6486 * and we'll need to scroll again.
6488 if (text_view->priv->scroll_timeout != 0) /* reset on every motion event */
6489 g_source_remove (text_view->priv->scroll_timeout);
6491 text_view->priv->scroll_timeout =
6492 gdk_threads_add_timeout (50, selection_scan_timeout, text_view);
6498 gtk_text_view_start_selection_drag (GtkTextView *text_view,
6499 const GtkTextIter *iter,
6500 GdkEventButton *button)
6502 GtkTextViewPrivate *priv;
6503 GtkTextIter cursor, ins, bound;
6504 GtkTextIter orig_start, orig_end;
6505 GtkTextBuffer *buffer;
6506 SelectionData *data;
6508 if (text_view->priv->selection_drag_handler != 0)
6511 priv = text_view->priv;
6512 data = g_new0 (SelectionData, 1);
6514 if (button->type == GDK_2BUTTON_PRESS)
6515 data->granularity = SELECT_WORDS;
6516 else if (button->type == GDK_3BUTTON_PRESS)
6517 data->granularity = SELECT_LINES;
6519 data->granularity = SELECT_CHARACTERS;
6521 priv->grab_device = button->device;
6522 gtk_device_grab_add (GTK_WIDGET (text_view),
6526 buffer = get_buffer (text_view);
6531 extend_selection (text_view, data->granularity, &ins, &bound);
6535 if (button->state & GDK_SHIFT_MASK)
6537 /* Extend selection */
6538 GtkTextIter old_ins, old_bound;
6539 GtkTextIter old_start, old_end;
6541 gtk_text_buffer_get_iter_at_mark (buffer, &old_ins, gtk_text_buffer_get_insert (buffer));
6542 gtk_text_buffer_get_iter_at_mark (buffer, &old_bound, gtk_text_buffer_get_selection_bound (buffer));
6543 old_start = old_ins;
6544 old_end = old_bound;
6545 gtk_text_iter_order (&old_start, &old_end);
6547 /* move the front cursor, if the mouse is in front of the selection. Should the
6548 * cursor however be inside the selection (this happens on tripple click) then we
6549 * move the side which was last moved (current insert mark) */
6550 if (gtk_text_iter_compare (&cursor, &old_start) <= 0 ||
6551 (gtk_text_iter_compare (&cursor, &old_end) < 0 &&
6552 gtk_text_iter_compare (&old_ins, &old_bound) <= 0))
6555 orig_start = old_end;
6567 gtk_text_buffer_select_range (buffer, &ins, &bound);
6569 gtk_text_iter_order (&orig_start, &orig_end);
6570 data->orig_start = gtk_text_buffer_create_mark (buffer, NULL,
6572 data->orig_end = gtk_text_buffer_create_mark (buffer, NULL,
6574 gtk_text_view_check_cursor_blink (text_view);
6576 text_view->priv->selection_drag_handler = g_signal_connect_data (text_view,
6577 "motion-notify-event",
6578 G_CALLBACK (selection_motion_event_handler),
6580 (GClosureNotify) selection_data_free, 0);
6583 /* returns whether we were really dragging */
6585 gtk_text_view_end_selection_drag (GtkTextView *text_view)
6587 GtkTextViewPrivate *priv;
6589 priv = text_view->priv;
6591 if (!priv->grab_device)
6594 if (priv->selection_drag_handler == 0)
6597 g_signal_handler_disconnect (text_view, priv->selection_drag_handler);
6598 priv->selection_drag_handler = 0;
6600 if (priv->scroll_timeout != 0)
6602 g_source_remove (priv->scroll_timeout);
6603 priv->scroll_timeout = 0;
6606 gtk_device_grab_remove (GTK_WIDGET (text_view),
6608 priv->grab_device = NULL;
6618 gtk_text_view_set_attributes_from_style (GtkTextView *text_view,
6619 GtkTextAttributes *values,
6622 values->appearance.bg_color = style->base[GTK_STATE_NORMAL];
6623 values->appearance.fg_color = style->text[GTK_STATE_NORMAL];
6626 pango_font_description_free (values->font);
6628 values->font = pango_font_description_copy (style->font_desc);
6632 gtk_text_view_check_keymap_direction (GtkTextView *text_view)
6634 GtkTextViewPrivate *priv = text_view->priv;
6638 GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (text_view));
6639 GdkKeymap *keymap = gdk_keymap_get_for_display (gtk_widget_get_display (GTK_WIDGET (text_view)));
6640 GtkTextDirection new_cursor_dir;
6641 GtkTextDirection new_keyboard_dir;
6642 gboolean split_cursor;
6644 g_object_get (settings,
6645 "gtk-split-cursor", &split_cursor,
6648 if (gdk_keymap_get_direction (keymap) == PANGO_DIRECTION_RTL)
6649 new_keyboard_dir = GTK_TEXT_DIR_RTL;
6651 new_keyboard_dir = GTK_TEXT_DIR_LTR;
6654 new_cursor_dir = GTK_TEXT_DIR_NONE;
6656 new_cursor_dir = new_keyboard_dir;
6658 gtk_text_layout_set_cursor_direction (priv->layout, new_cursor_dir);
6659 gtk_text_layout_set_keyboard_direction (priv->layout, new_keyboard_dir);
6664 gtk_text_view_ensure_layout (GtkTextView *text_view)
6667 GtkTextViewPrivate *priv;
6669 widget = GTK_WIDGET (text_view);
6670 priv = text_view->priv;
6672 if (priv->layout == NULL)
6674 GtkTextAttributes *style;
6675 PangoContext *ltr_context, *rtl_context;
6678 DV(g_print(G_STRLOC"\n"));
6680 priv->layout = gtk_text_layout_new ();
6682 g_signal_connect (priv->layout,
6684 G_CALLBACK (invalidated_handler),
6687 g_signal_connect (priv->layout,
6689 G_CALLBACK (changed_handler),
6692 g_signal_connect (priv->layout,
6694 G_CALLBACK (gtk_text_view_child_allocated),
6697 if (get_buffer (text_view))
6698 gtk_text_layout_set_buffer (priv->layout, get_buffer (text_view));
6700 if ((gtk_widget_has_focus (widget) && priv->cursor_visible))
6701 gtk_text_view_pend_cursor_blink (text_view);
6703 gtk_text_layout_set_cursor_visible (priv->layout, FALSE);
6705 gtk_text_layout_set_overwrite_mode (priv->layout,
6706 priv->overwrite_mode && priv->editable);
6708 ltr_context = gtk_widget_create_pango_context (GTK_WIDGET (text_view));
6709 pango_context_set_base_dir (ltr_context, PANGO_DIRECTION_LTR);
6710 rtl_context = gtk_widget_create_pango_context (GTK_WIDGET (text_view));
6711 pango_context_set_base_dir (rtl_context, PANGO_DIRECTION_RTL);
6713 gtk_text_layout_set_contexts (priv->layout, ltr_context, rtl_context);
6715 g_object_unref (ltr_context);
6716 g_object_unref (rtl_context);
6718 gtk_text_view_check_keymap_direction (text_view);
6720 style = gtk_text_attributes_new ();
6722 gtk_widget_ensure_style (widget);
6723 gtk_text_view_set_attributes_from_style (text_view,
6725 gtk_widget_get_style (widget));
6727 style->pixels_above_lines = priv->pixels_above_lines;
6728 style->pixels_below_lines = priv->pixels_below_lines;
6729 style->pixels_inside_wrap = priv->pixels_inside_wrap;
6730 style->left_margin = priv->left_margin;
6731 style->right_margin = priv->right_margin;
6732 style->indent = priv->indent;
6733 style->tabs = priv->tabs ? pango_tab_array_copy (priv->tabs) : NULL;
6735 style->wrap_mode = priv->wrap_mode;
6736 style->justification = priv->justify;
6737 style->direction = gtk_widget_get_direction (GTK_WIDGET (text_view));
6739 gtk_text_layout_set_default_style (priv->layout, style);
6741 gtk_text_attributes_unref (style);
6743 /* Set layout for all anchored children */
6745 tmp_list = priv->children;
6746 while (tmp_list != NULL)
6748 GtkTextViewChild *vc = tmp_list->data;
6752 gtk_text_anchored_child_set_layout (vc->widget,
6754 /* vc may now be invalid! */
6757 tmp_list = g_slist_next (tmp_list);
6760 gtk_text_view_invalidate (text_view);
6765 * gtk_text_view_get_default_attributes:
6766 * @text_view: a #GtkTextView
6768 * Obtains a copy of the default text attributes. These are the
6769 * attributes used for text unless a tag overrides them.
6770 * You'd typically pass the default attributes in to
6771 * gtk_text_iter_get_attributes() in order to get the
6772 * attributes in effect at a given text position.
6774 * The return value is a copy owned by the caller of this function,
6775 * and should be freed.
6777 * Return value: a new #GtkTextAttributes
6780 gtk_text_view_get_default_attributes (GtkTextView *text_view)
6782 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
6784 gtk_text_view_ensure_layout (text_view);
6786 return gtk_text_attributes_copy (text_view->priv->layout->default_style);
6790 gtk_text_view_destroy_layout (GtkTextView *text_view)
6792 GtkTextViewPrivate *priv = text_view->priv;
6798 gtk_text_view_remove_validate_idles (text_view);
6800 g_signal_handlers_disconnect_by_func (priv->layout,
6801 invalidated_handler,
6803 g_signal_handlers_disconnect_by_func (priv->layout,
6807 /* Remove layout from all anchored children */
6808 tmp_list = priv->children;
6809 while (tmp_list != NULL)
6811 GtkTextViewChild *vc = tmp_list->data;
6815 gtk_text_anchored_child_set_layout (vc->widget, NULL);
6816 /* vc may now be invalid! */
6819 tmp_list = g_slist_next (tmp_list);
6822 gtk_text_view_stop_cursor_blink (text_view);
6823 gtk_text_view_end_selection_drag (text_view);
6825 g_object_unref (priv->layout);
6826 priv->layout = NULL;
6831 * gtk_text_view_reset_im_context:
6832 * @text_view: a #GtkTextView
6834 * Reset the input method context of the text view if needed.
6836 * This can be necessary in the case where modifying the buffer
6837 * would confuse on-going input method behavior.
6842 gtk_text_view_reset_im_context (GtkTextView *text_view)
6844 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
6846 if (text_view->priv->need_im_reset)
6848 text_view->priv->need_im_reset = FALSE;
6849 gtk_im_context_reset (text_view->priv->im_context);
6854 * gtk_text_view_im_context_filter_keypress:
6855 * @text_view: a #GtkTextView
6856 * @event: the key event
6858 * Allow the #GtkTextView input method to internally handle key press
6859 * and release events. If this function returns %TRUE, then no further
6860 * processing should be done for this key event. See
6861 * gtk_im_context_filter_keypress().
6863 * Note that you are expected to call this function from your handler
6864 * when overriding key event handling. This is needed in the case when
6865 * you need to insert your own key handling between the input method
6866 * and the default key event handling of the #GtkTextView.
6870 * gtk_foo_bar_key_press_event (GtkWidget *widget,
6871 * GdkEventKey *event)
6873 * if ((key->keyval == GDK_Return || key->keyval == GDK_KP_Enter))
6875 * if (gtk_text_view_im_context_filter_keypress (GTK_TEXT_VIEW (view), event))
6879 * /* Do some stuff */
6881 * return GTK_WIDGET_CLASS (gtk_foo_bar_parent_class)->key_press_event (widget, event);
6885 * Return value: %TRUE if the input method handled the key event.
6890 gtk_text_view_im_context_filter_keypress (GtkTextView *text_view,
6893 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
6895 return gtk_im_context_filter_keypress (text_view->priv->im_context, event);
6903 drag_begin_cb (GtkWidget *widget,
6904 GdkDragContext *context,
6907 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
6908 GtkTextBuffer *buffer = gtk_text_view_get_buffer (text_view);
6911 cairo_surface_t *surface = NULL;
6913 g_signal_handlers_disconnect_by_func (widget, drag_begin_cb, NULL);
6915 if (gtk_text_buffer_get_selection_bounds (buffer, &start, &end))
6916 surface = _gtk_text_util_create_rich_drag_icon (widget, buffer, &start, &end);
6920 gtk_drag_set_icon_surface (context, surface);
6921 cairo_surface_destroy (surface);
6925 gtk_drag_set_icon_default (context);
6930 gtk_text_view_start_selection_dnd (GtkTextView *text_view,
6931 const GtkTextIter *iter,
6932 GdkEventMotion *event)
6934 GtkTargetList *target_list;
6936 text_view->priv->drag_start_x = -1;
6937 text_view->priv->drag_start_y = -1;
6938 text_view->priv->pending_place_cursor_button = 0;
6940 target_list = gtk_text_buffer_get_copy_target_list (get_buffer (text_view));
6942 g_signal_connect (text_view, "drag-begin",
6943 G_CALLBACK (drag_begin_cb), NULL);
6944 gtk_drag_begin (GTK_WIDGET (text_view), target_list,
6945 GDK_ACTION_COPY | GDK_ACTION_MOVE,
6946 1, (GdkEvent*)event);
6950 gtk_text_view_drag_begin (GtkWidget *widget,
6951 GdkDragContext *context)
6957 gtk_text_view_drag_end (GtkWidget *widget,
6958 GdkDragContext *context)
6963 gtk_text_view_drag_data_get (GtkWidget *widget,
6964 GdkDragContext *context,
6965 GtkSelectionData *selection_data,
6969 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
6970 GtkTextBuffer *buffer = gtk_text_view_get_buffer (text_view);
6972 if (info == GTK_TEXT_BUFFER_TARGET_INFO_BUFFER_CONTENTS)
6974 gtk_selection_data_set (selection_data,
6975 gdk_atom_intern_static_string ("GTK_TEXT_BUFFER_CONTENTS"),
6980 else if (info == GTK_TEXT_BUFFER_TARGET_INFO_RICH_TEXT)
6987 if (gtk_text_buffer_get_selection_bounds (buffer, &start, &end))
6989 /* Extract the selected text */
6990 str = gtk_text_buffer_serialize (buffer, buffer,
6991 selection_data->target,
6998 gtk_selection_data_set (selection_data,
6999 selection_data->target,
7001 (guchar *) str, len);
7011 if (gtk_text_buffer_get_selection_bounds (buffer, &start, &end))
7013 /* Extract the selected text */
7014 str = gtk_text_iter_get_visible_text (&start, &end);
7019 gtk_selection_data_set_text (selection_data, str, -1);
7026 gtk_text_view_drag_data_delete (GtkWidget *widget,
7027 GdkDragContext *context)
7029 gtk_text_buffer_delete_selection (GTK_TEXT_VIEW (widget)->priv->buffer,
7030 TRUE, GTK_TEXT_VIEW (widget)->priv->editable);
7034 gtk_text_view_drag_leave (GtkWidget *widget,
7035 GdkDragContext *context,
7038 GtkTextView *text_view;
7039 GtkTextViewPrivate *priv;
7041 text_view = GTK_TEXT_VIEW (widget);
7042 priv = text_view->priv;
7044 gtk_text_mark_set_visible (priv->dnd_mark, FALSE);
7046 if (priv->dnd_device)
7047 priv->dnd_device = NULL;
7049 if (priv->scroll_timeout != 0)
7050 g_source_remove (priv->scroll_timeout);
7052 priv->scroll_timeout = 0;
7056 gtk_text_view_drag_motion (GtkWidget *widget,
7057 GdkDragContext *context,
7062 GtkTextIter newplace;
7063 GtkTextView *text_view;
7064 GtkTextViewPrivate *priv;
7067 GdkRectangle target_rect;
7070 GdkDragAction suggested_action = 0;
7072 text_view = GTK_TEXT_VIEW (widget);
7073 priv = text_view->priv;
7075 target_rect = priv->text_window->allocation;
7077 if (x < target_rect.x ||
7078 y < target_rect.y ||
7079 x > (target_rect.x + target_rect.width) ||
7080 y > (target_rect.y + target_rect.height))
7081 return FALSE; /* outside the text window, allow parent widgets to handle event */
7083 gtk_text_view_window_to_buffer_coords (text_view,
7084 GTK_TEXT_WINDOW_WIDGET,
7088 gtk_text_layout_get_iter_at_pixel (priv->layout,
7092 target = gtk_drag_dest_find_target (widget, context,
7093 gtk_drag_dest_get_target_list (widget));
7095 if (target == GDK_NONE)
7097 /* can't accept any of the offered targets */
7099 else if (gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
7101 gtk_text_iter_compare (&newplace, &start) >= 0 &&
7102 gtk_text_iter_compare (&newplace, &end) <= 0)
7104 /* We're inside the selection. */
7108 if (gtk_text_iter_can_insert (&newplace, priv->editable))
7110 GtkWidget *source_widget;
7112 suggested_action = context->suggested_action;
7114 source_widget = gtk_drag_get_source_widget (context);
7116 if (source_widget == widget)
7118 /* Default to MOVE, unless the user has
7119 * pressed ctrl or alt to affect available actions
7121 if ((context->actions & GDK_ACTION_MOVE) != 0)
7122 suggested_action = GDK_ACTION_MOVE;
7127 /* Can't drop here. */
7131 if (suggested_action != 0)
7133 gtk_text_mark_set_visible (priv->dnd_mark,
7134 priv->cursor_visible);
7136 gdk_drag_status (context, suggested_action, time);
7140 gdk_drag_status (context, 0, time);
7141 gtk_text_mark_set_visible (priv->dnd_mark, FALSE);
7144 priv->dnd_device = gdk_drag_context_get_device (context);
7146 if (!priv->scroll_timeout)
7147 priv->scroll_timeout =
7148 gdk_threads_add_timeout (100, drag_scan_timeout, text_view);
7150 /* TRUE return means don't propagate the drag motion to parent
7151 * widgets that may also be drop sites.
7157 gtk_text_view_drag_drop (GtkWidget *widget,
7158 GdkDragContext *context,
7163 GtkTextView *text_view;
7164 GtkTextViewPrivate *priv;
7165 GtkTextIter drop_point;
7166 GdkAtom target = GDK_NONE;
7168 text_view = GTK_TEXT_VIEW (widget);
7169 priv = text_view->priv;
7171 if (priv->scroll_timeout != 0)
7172 g_source_remove (priv->scroll_timeout);
7174 priv->scroll_timeout = 0;
7176 gtk_text_mark_set_visible (priv->dnd_mark, FALSE);
7178 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
7182 if (gtk_text_iter_can_insert (&drop_point, priv->editable))
7183 target = gtk_drag_dest_find_target (widget, context, NULL);
7185 if (target != GDK_NONE)
7186 gtk_drag_get_data (widget, context, target, time);
7188 gtk_drag_finish (context, FALSE, FALSE, time);
7194 insert_text_data (GtkTextView *text_view,
7195 GtkTextIter *drop_point,
7196 GtkSelectionData *selection_data)
7200 str = gtk_selection_data_get_text (selection_data);
7204 if (!gtk_text_buffer_insert_interactive (get_buffer (text_view),
7205 drop_point, (gchar *) str, -1,
7206 text_view->priv->editable))
7208 gtk_widget_error_bell (GTK_WIDGET (text_view));
7216 gtk_text_view_drag_data_received (GtkWidget *widget,
7217 GdkDragContext *context,
7220 GtkSelectionData *selection_data,
7224 GtkTextIter drop_point;
7225 GtkTextView *text_view;
7226 GtkTextViewPrivate *priv;
7227 gboolean success = FALSE;
7228 GtkTextBuffer *buffer = NULL;
7230 text_view = GTK_TEXT_VIEW (widget);
7231 priv = text_view->priv;
7233 if (!priv->dnd_mark)
7236 buffer = get_buffer (text_view);
7238 gtk_text_buffer_get_iter_at_mark (buffer,
7242 if (!gtk_text_iter_can_insert (&drop_point, priv->editable))
7247 gtk_text_buffer_begin_user_action (buffer);
7249 if (info == GTK_TEXT_BUFFER_TARGET_INFO_BUFFER_CONTENTS)
7251 GtkTextBuffer *src_buffer = NULL;
7252 GtkTextIter start, end;
7253 gboolean copy_tags = TRUE;
7255 if (selection_data->length != sizeof (src_buffer))
7258 memcpy (&src_buffer, selection_data->data, sizeof (src_buffer));
7260 if (src_buffer == NULL)
7263 g_return_if_fail (GTK_IS_TEXT_BUFFER (src_buffer));
7265 if (gtk_text_buffer_get_tag_table (src_buffer) !=
7266 gtk_text_buffer_get_tag_table (buffer))
7268 /* try to find a suitable rich text target instead */
7272 GdkAtom target = GDK_NONE;
7276 atoms = gtk_text_buffer_get_deserialize_formats (buffer, &n_atoms);
7278 for (list = context->targets; list; list = g_list_next (list))
7282 for (i = 0; i < n_atoms; i++)
7283 if (GUINT_TO_POINTER (atoms[i]) == list->data)
7292 if (target != GDK_NONE)
7294 gtk_drag_get_data (widget, context, target, time);
7295 gtk_text_buffer_end_user_action (buffer);
7300 if (gtk_text_buffer_get_selection_bounds (src_buffer,
7305 gtk_text_buffer_insert_range_interactive (buffer,
7314 str = gtk_text_iter_get_visible_text (&start, &end);
7315 gtk_text_buffer_insert_interactive (buffer,
7316 &drop_point, str, -1,
7322 else if (selection_data->length > 0 &&
7323 info == GTK_TEXT_BUFFER_TARGET_INFO_RICH_TEXT)
7326 GError *error = NULL;
7328 retval = gtk_text_buffer_deserialize (buffer, buffer,
7329 selection_data->target,
7331 (guint8 *) selection_data->data,
7332 selection_data->length,
7337 g_warning ("error pasting: %s\n", error->message);
7338 g_clear_error (&error);
7342 insert_text_data (text_view, &drop_point, selection_data);
7345 gtk_drag_finish (context, success,
7346 success && context->action == GDK_ACTION_MOVE,
7351 gtk_text_buffer_get_iter_at_mark (buffer,
7354 gtk_text_buffer_place_cursor (buffer, &drop_point);
7356 gtk_text_buffer_end_user_action (buffer);
7361 * gtk_text_view_get_hadjustment:
7362 * @text_view: a #GtkTextView
7364 * Gets the horizontal-scrolling #GtkAdjustment.
7366 * Returns: (transfer none): pointer to the horizontal #GtkAdjustment
7371 gtk_text_view_get_hadjustment (GtkTextView *text_view)
7373 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
7375 return get_hadjustment (text_view);
7379 * gtk_text_view_get_vadjustment:
7380 * @text_view: a #GtkTextView
7382 * Gets the vertical-scrolling #GtkAdjustment.
7384 * Returns: (transfer none): pointer to the vertical #GtkAdjustment
7389 gtk_text_view_get_vadjustment (GtkTextView *text_view)
7391 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
7393 return get_vadjustment (text_view);
7396 static GtkAdjustment*
7397 get_hadjustment (GtkTextView *text_view)
7399 if (text_view->priv->hadjustment == NULL)
7400 gtk_text_view_set_scroll_adjustments (text_view,
7401 NULL, /* forces creation */
7402 text_view->priv->vadjustment);
7404 return text_view->priv->hadjustment;
7407 static GtkAdjustment*
7408 get_vadjustment (GtkTextView *text_view)
7410 if (text_view->priv->vadjustment == NULL)
7411 gtk_text_view_set_scroll_adjustments (text_view,
7412 text_view->priv->hadjustment,
7413 NULL); /* forces creation */
7414 return text_view->priv->vadjustment;
7419 gtk_text_view_set_scroll_adjustments (GtkTextView *text_view,
7420 GtkAdjustment *hadj,
7421 GtkAdjustment *vadj)
7423 GtkTextViewPrivate *priv = text_view->priv;
7424 gboolean need_adjust = FALSE;
7427 g_return_if_fail (GTK_IS_ADJUSTMENT (hadj));
7429 hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
7431 g_return_if_fail (GTK_IS_ADJUSTMENT (vadj));
7433 vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
7435 if (priv->hadjustment && (priv->hadjustment != hadj))
7437 g_signal_handlers_disconnect_by_func (priv->hadjustment,
7438 gtk_text_view_value_changed,
7440 g_object_unref (priv->hadjustment);
7443 if (priv->vadjustment && (priv->vadjustment != vadj))
7445 g_signal_handlers_disconnect_by_func (priv->vadjustment,
7446 gtk_text_view_value_changed,
7448 g_object_unref (priv->vadjustment);
7451 if (priv->hadjustment != hadj)
7453 priv->hadjustment = hadj;
7454 g_object_ref_sink (priv->hadjustment);
7456 g_signal_connect (priv->hadjustment, "value-changed",
7457 G_CALLBACK (gtk_text_view_value_changed),
7462 if (priv->vadjustment != vadj)
7464 priv->vadjustment = vadj;
7465 g_object_ref_sink (priv->vadjustment);
7467 g_signal_connect (priv->vadjustment, "value-changed",
7468 G_CALLBACK (gtk_text_view_value_changed),
7474 gtk_text_view_value_changed (NULL, text_view);
7477 /* FIXME this adjust_allocation is a big cut-and-paste from
7478 * GtkCList, needs to be some "official" way to do this
7488 /* The window to which widget->window is relative */
7489 #define ALLOCATION_WINDOW(widget) \
7490 (!gtk_widget_get_has_window (widget) ? \
7491 gtk_widget_get_window (widget) : \
7492 gdk_window_get_parent (gtk_widget_get_window (widget)))
7495 adjust_allocation_recurse (GtkWidget *widget,
7498 GtkAllocation allocation;
7499 ScrollData *scroll_data = data;
7501 /* Need to really size allocate instead of just poking
7502 * into widget->allocation if the widget is not realized.
7503 * FIXME someone figure out why this was.
7505 if (!gtk_widget_get_realized (widget))
7507 if (gtk_widget_get_visible (widget))
7509 GdkRectangle tmp_rectangle;
7511 tmp_rectangle = allocation;
7512 tmp_rectangle.x += scroll_data->dx;
7513 tmp_rectangle.y += scroll_data->dy;
7515 gtk_widget_size_allocate (widget, &tmp_rectangle);
7520 if (ALLOCATION_WINDOW (widget) == scroll_data->window)
7522 allocation.x += scroll_data->dx;
7523 allocation.y += scroll_data->dy;
7524 gtk_widget_set_allocation (widget, &allocation);
7526 if (GTK_IS_CONTAINER (widget))
7527 gtk_container_forall (GTK_CONTAINER (widget),
7528 adjust_allocation_recurse,
7535 adjust_allocation (GtkWidget *widget,
7539 ScrollData scroll_data;
7541 if (gtk_widget_get_realized (widget))
7542 scroll_data.window = ALLOCATION_WINDOW (widget);
7544 scroll_data.window = NULL;
7546 scroll_data.dx = dx;
7547 scroll_data.dy = dy;
7549 adjust_allocation_recurse (widget, &scroll_data);
7553 gtk_text_view_value_changed (GtkAdjustment *adj,
7554 GtkTextView *text_view)
7556 GtkTextViewPrivate *priv;
7562 priv = text_view->priv;
7564 /* Note that we oddly call this function with adj == NULL
7568 priv->onscreen_validated = FALSE;
7570 DV(g_print(">Scroll offset changed %s/%g, onscreen_validated = FALSE ("G_STRLOC")\n",
7571 adj == priv->hadjustment ? "hadj" : adj == priv->vadjustment ? "vadj" : "none",
7572 adj ? adj->value : 0.0));
7574 if (adj == priv->hadjustment)
7576 dx = priv->xoffset - (gint)adj->value;
7577 priv->xoffset = adj->value;
7579 /* If the change is due to a size change we need
7580 * to invalidate the entire text window because there might be
7581 * right-aligned or centered text
7583 if (priv->width_changed)
7585 if (gtk_widget_get_realized (GTK_WIDGET (text_view)))
7586 gdk_window_invalidate_rect (priv->text_window->bin_window, NULL, FALSE);
7588 priv->width_changed = FALSE;
7591 else if (adj == priv->vadjustment)
7593 dy = priv->yoffset - (gint)adj->value;
7594 priv->yoffset = adj->value;
7598 gtk_text_layout_get_line_at_y (priv->layout, &iter, adj->value, &line_top);
7600 gtk_text_buffer_move_mark (get_buffer (text_view), priv->first_para_mark, &iter);
7602 priv->first_para_pixels = adj->value - line_top;
7606 if (dx != 0 || dy != 0)
7610 if (gtk_widget_get_realized (GTK_WIDGET (text_view)))
7614 if (priv->left_window)
7615 text_window_scroll (priv->left_window, 0, dy);
7616 if (priv->right_window)
7617 text_window_scroll (priv->right_window, 0, dy);
7622 if (priv->top_window)
7623 text_window_scroll (priv->top_window, dx, 0);
7624 if (priv->bottom_window)
7625 text_window_scroll (priv->bottom_window, dx, 0);
7628 /* It looks nicer to scroll the main area last, because
7629 * it takes a while, and making the side areas update
7630 * afterward emphasizes the slowness of scrolling the
7633 text_window_scroll (priv->text_window, dx, dy);
7636 /* Children are now "moved" in the text window, poke
7637 * into widget->allocation for each child
7639 tmp_list = priv->children;
7640 while (tmp_list != NULL)
7642 GtkTextViewChild *child = tmp_list->data;
7645 adjust_allocation (child->widget, dx, dy);
7647 tmp_list = g_slist_next (tmp_list);
7651 /* This could result in invalidation, which would install the
7652 * first_validate_idle, which would validate onscreen;
7653 * but we're going to go ahead and validate here, so
7654 * first_validate_idle shouldn't have anything to do.
7656 gtk_text_view_update_layout_width (text_view);
7658 /* We also update the IM spot location here, since the IM context
7659 * might do something that leads to validation.
7661 gtk_text_view_update_im_spot_location (text_view);
7663 /* note that validation of onscreen could invoke this function
7664 * recursively, by scrolling to maintain first_para, or in response
7665 * to updating the layout width, however there is no problem with
7666 * that, or shouldn't be.
7668 gtk_text_view_validate_onscreen (text_view);
7670 /* process exposes */
7671 if (gtk_widget_get_realized (GTK_WIDGET (text_view)))
7673 DV (g_print ("Processing updates (%s)\n", G_STRLOC));
7675 if (priv->left_window)
7676 gdk_window_process_updates (priv->left_window->bin_window, TRUE);
7678 if (priv->right_window)
7679 gdk_window_process_updates (priv->right_window->bin_window, TRUE);
7681 if (priv->top_window)
7682 gdk_window_process_updates (priv->top_window->bin_window, TRUE);
7684 if (priv->bottom_window)
7685 gdk_window_process_updates (priv->bottom_window->bin_window, TRUE);
7687 gdk_window_process_updates (priv->text_window->bin_window, TRUE);
7690 /* If this got installed, get rid of it, it's just a waste of time. */
7691 if (priv->first_validate_idle != 0)
7693 g_source_remove (priv->first_validate_idle);
7694 priv->first_validate_idle = 0;
7697 /* Finally we update the IM cursor location again, to ensure any
7698 * changes made by the validation are pushed through.
7700 gtk_text_view_update_im_spot_location (text_view);
7702 DV(g_print(">End scroll offset changed handler ("G_STRLOC")\n"));
7706 gtk_text_view_commit_handler (GtkIMContext *context,
7708 GtkTextView *text_view)
7710 gtk_text_view_commit_text (text_view, str);
7714 gtk_text_view_commit_text (GtkTextView *text_view,
7717 GtkTextViewPrivate *priv;
7718 gboolean had_selection;
7720 priv = text_view->priv;
7722 gtk_text_buffer_begin_user_action (get_buffer (text_view));
7724 had_selection = gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
7727 gtk_text_buffer_delete_selection (get_buffer (text_view), TRUE,
7730 if (!strcmp (str, "\n"))
7732 if (!gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), "\n", 1,
7735 gtk_widget_error_bell (GTK_WIDGET (text_view));
7740 if (!had_selection && priv->overwrite_mode)
7744 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
7746 gtk_text_buffer_get_insert (get_buffer (text_view)));
7747 if (!gtk_text_iter_ends_line (&insert))
7748 gtk_text_view_delete_from_cursor (text_view, GTK_DELETE_CHARS, 1);
7751 if (!gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), str, -1,
7754 gtk_widget_error_bell (GTK_WIDGET (text_view));
7758 gtk_text_buffer_end_user_action (get_buffer (text_view));
7760 gtk_text_view_set_virtual_cursor_pos (text_view, -1, -1);
7761 DV(g_print (G_STRLOC": scrolling onscreen\n"));
7762 gtk_text_view_scroll_mark_onscreen (text_view,
7763 gtk_text_buffer_get_insert (get_buffer (text_view)));
7767 gtk_text_view_preedit_changed_handler (GtkIMContext *context,
7768 GtkTextView *text_view)
7770 GtkTextViewPrivate *priv;
7772 PangoAttrList *attrs;
7776 priv = text_view->priv;
7778 gtk_text_buffer_get_iter_at_mark (priv->buffer, &iter,
7779 gtk_text_buffer_get_insert (priv->buffer));
7781 /* Keypress events are passed to input method even if cursor position is
7782 * not editable; so beep here if it's multi-key input sequence, input
7783 * method will be reset in key-press-event handler.
7785 gtk_im_context_get_preedit_string (context, &str, &attrs, &cursor_pos);
7787 if (str && str[0] && !gtk_text_iter_can_insert (&iter, priv->editable))
7789 gtk_widget_error_bell (GTK_WIDGET (text_view));
7793 g_signal_emit (text_view, signals[PREEDIT_CHANGED], 0, str);
7796 gtk_text_layout_set_preedit_string (priv->layout, str, attrs, cursor_pos);
7797 if (gtk_widget_has_focus (GTK_WIDGET (text_view)))
7798 gtk_text_view_scroll_mark_onscreen (text_view,
7799 gtk_text_buffer_get_insert (get_buffer (text_view)));
7802 pango_attr_list_unref (attrs);
7807 gtk_text_view_retrieve_surrounding_handler (GtkIMContext *context,
7808 GtkTextView *text_view)
7815 gtk_text_buffer_get_iter_at_mark (text_view->priv->buffer, &start,
7816 gtk_text_buffer_get_insert (text_view->priv->buffer));
7819 pos = gtk_text_iter_get_line_index (&start);
7820 gtk_text_iter_set_line_offset (&start, 0);
7821 gtk_text_iter_forward_to_line_end (&end);
7823 text = gtk_text_iter_get_slice (&start, &end);
7824 gtk_im_context_set_surrounding (context, text, -1, pos);
7831 gtk_text_view_delete_surrounding_handler (GtkIMContext *context,
7834 GtkTextView *text_view)
7836 GtkTextViewPrivate *priv;
7840 priv = text_view->priv;
7842 gtk_text_buffer_get_iter_at_mark (priv->buffer, &start,
7843 gtk_text_buffer_get_insert (priv->buffer));
7846 gtk_text_iter_forward_chars (&start, offset);
7847 gtk_text_iter_forward_chars (&end, offset + n_chars);
7849 gtk_text_buffer_delete_interactive (priv->buffer, &start, &end,
7856 gtk_text_view_mark_set_handler (GtkTextBuffer *buffer,
7857 const GtkTextIter *location,
7861 GtkTextView *text_view = GTK_TEXT_VIEW (data);
7862 gboolean need_reset = FALSE;
7864 if (mark == gtk_text_buffer_get_insert (buffer))
7866 text_view->priv->virtual_cursor_x = -1;
7867 text_view->priv->virtual_cursor_y = -1;
7868 gtk_text_view_update_im_spot_location (text_view);
7871 else if (mark == gtk_text_buffer_get_selection_bound (buffer))
7877 gtk_text_view_reset_im_context (text_view);
7881 gtk_text_view_target_list_notify (GtkTextBuffer *buffer,
7882 const GParamSpec *pspec,
7885 GtkWidget *widget = GTK_WIDGET (data);
7886 GtkTargetList *view_list;
7887 GtkTargetList *buffer_list;
7890 view_list = gtk_drag_dest_get_target_list (widget);
7891 buffer_list = gtk_text_buffer_get_paste_target_list (buffer);
7894 gtk_target_list_ref (view_list);
7896 view_list = gtk_target_list_new (NULL, 0);
7898 list = view_list->list;
7901 GtkTargetPair *pair = list->data;
7903 list = g_list_next (list); /* get next element before removing */
7905 if (pair->info >= GTK_TEXT_BUFFER_TARGET_INFO_TEXT &&
7906 pair->info <= GTK_TEXT_BUFFER_TARGET_INFO_BUFFER_CONTENTS)
7908 gtk_target_list_remove (view_list, pair->target);
7912 for (list = buffer_list->list; list; list = g_list_next (list))
7914 GtkTargetPair *pair = list->data;
7916 gtk_target_list_add (view_list, pair->target, pair->flags, pair->info);
7919 gtk_drag_dest_set_target_list (widget, view_list);
7920 gtk_target_list_unref (view_list);
7924 gtk_text_view_get_cursor_location (GtkTextView *text_view,
7929 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
7930 gtk_text_buffer_get_insert (get_buffer (text_view)));
7932 gtk_text_layout_get_cursor_locations (text_view->priv->layout, &insert, pos, NULL);
7936 gtk_text_view_get_virtual_cursor_pos (GtkTextView *text_view,
7937 GtkTextIter *cursor,
7941 GtkTextViewPrivate *priv;
7945 priv = text_view->priv;
7950 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
7951 gtk_text_buffer_get_insert (get_buffer (text_view)));
7953 if ((x && priv->virtual_cursor_x == -1) ||
7954 (y && priv->virtual_cursor_y == -1))
7955 gtk_text_layout_get_cursor_locations (priv->layout, &insert, &pos, NULL);
7959 if (priv->virtual_cursor_x != -1)
7960 *x = priv->virtual_cursor_x;
7967 if (priv->virtual_cursor_x != -1)
7968 *y = priv->virtual_cursor_y;
7970 *y = pos.y + pos.height / 2;
7975 gtk_text_view_set_virtual_cursor_pos (GtkTextView *text_view,
7981 if (!text_view->priv->layout)
7984 if (x == -1 || y == -1)
7985 gtk_text_view_get_cursor_location (text_view, &pos);
7987 text_view->priv->virtual_cursor_x = (x == -1) ? pos.x : x;
7988 text_view->priv->virtual_cursor_y = (y == -1) ? pos.y + pos.height / 2 : y;
7991 /* Quick hack of a popup menu
7994 activate_cb (GtkWidget *menuitem,
7995 GtkTextView *text_view)
7997 const gchar *signal = g_object_get_data (G_OBJECT (menuitem), "gtk-signal");
7998 g_signal_emit_by_name (text_view, signal);
8002 append_action_signal (GtkTextView *text_view,
8004 const gchar *stock_id,
8005 const gchar *signal,
8008 GtkWidget *menuitem = gtk_image_menu_item_new_from_stock (stock_id, NULL);
8010 g_object_set_data (G_OBJECT (menuitem), I_("gtk-signal"), (char *)signal);
8011 g_signal_connect (menuitem, "activate",
8012 G_CALLBACK (activate_cb), text_view);
8014 gtk_widget_set_sensitive (menuitem, sensitive);
8016 gtk_widget_show (menuitem);
8017 gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem);
8021 gtk_text_view_select_all (GtkWidget *widget,
8024 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
8025 GtkTextBuffer *buffer;
8026 GtkTextIter start_iter, end_iter, insert;
8028 buffer = text_view->priv->buffer;
8031 gtk_text_buffer_get_bounds (buffer, &start_iter, &end_iter);
8032 gtk_text_buffer_select_range (buffer, &start_iter, &end_iter);
8036 gtk_text_buffer_get_iter_at_mark (buffer, &insert,
8037 gtk_text_buffer_get_insert (buffer));
8038 gtk_text_buffer_move_mark_by_name (buffer, "selection_bound", &insert);
8043 select_all_cb (GtkWidget *menuitem,
8044 GtkTextView *text_view)
8046 gtk_text_view_select_all (GTK_WIDGET (text_view), TRUE);
8050 delete_cb (GtkTextView *text_view)
8052 gtk_text_buffer_delete_selection (get_buffer (text_view), TRUE,
8053 text_view->priv->editable);
8057 popup_menu_detach (GtkWidget *attach_widget,
8060 GTK_TEXT_VIEW (attach_widget)->priv->popup_menu = NULL;
8064 popup_position_func (GtkMenu *menu,
8070 GtkAllocation allocation;
8071 GtkTextView *text_view;
8073 GdkRectangle cursor_rect;
8074 GdkRectangle onscreen_rect;
8075 gint root_x, root_y;
8080 GdkRectangle monitor;
8082 text_view = GTK_TEXT_VIEW (user_data);
8083 widget = GTK_WIDGET (text_view);
8085 g_return_if_fail (gtk_widget_get_realized (widget));
8087 screen = gtk_widget_get_screen (widget);
8089 gdk_window_get_origin (gtk_widget_get_window (widget),
8092 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
8094 gtk_text_buffer_get_insert (get_buffer (text_view)));
8096 gtk_text_view_get_iter_location (text_view,
8100 gtk_text_view_get_visible_rect (text_view, &onscreen_rect);
8102 gtk_size_request_get_size (GTK_SIZE_REQUEST (text_view->priv->popup_menu),
8105 gtk_widget_get_allocation (widget, &allocation);
8107 /* can't use rectangle_intersect since cursor rect can have 0 width */
8108 if (cursor_rect.x >= onscreen_rect.x &&
8109 cursor_rect.x < onscreen_rect.x + onscreen_rect.width &&
8110 cursor_rect.y >= onscreen_rect.y &&
8111 cursor_rect.y < onscreen_rect.y + onscreen_rect.height)
8113 gtk_text_view_buffer_to_window_coords (text_view,
8114 GTK_TEXT_WINDOW_WIDGET,
8115 cursor_rect.x, cursor_rect.y,
8116 &cursor_rect.x, &cursor_rect.y);
8118 *x = root_x + cursor_rect.x + cursor_rect.width;
8119 *y = root_y + cursor_rect.y + cursor_rect.height;
8123 /* Just center the menu, since cursor is offscreen. */
8124 *x = root_x + (allocation.width / 2 - req.width / 2);
8125 *y = root_y + (allocation.height / 2 - req.height / 2);
8129 *x = CLAMP (*x, root_x, (root_x + allocation.width));
8130 *y = CLAMP (*y, root_y, (root_y + allocation.height));
8132 monitor_num = gdk_screen_get_monitor_at_point (screen, *x, *y);
8133 gtk_menu_set_monitor (menu, monitor_num);
8134 gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor);
8136 *x = CLAMP (*x, monitor.x, monitor.x + MAX (0, monitor.width - req.width));
8137 *y = CLAMP (*y, monitor.y, monitor.y + MAX (0, monitor.height - req.height));
8144 GtkTextView *text_view;
8150 range_contains_editable_text (const GtkTextIter *start,
8151 const GtkTextIter *end,
8152 gboolean default_editability)
8154 GtkTextIter iter = *start;
8156 while (gtk_text_iter_compare (&iter, end) < 0)
8158 if (gtk_text_iter_editable (&iter, default_editability))
8161 gtk_text_iter_forward_to_tag_toggle (&iter, NULL);
8168 unichar_chosen_func (const char *text,
8171 GtkTextView *text_view = GTK_TEXT_VIEW (data);
8173 gtk_text_view_commit_text (text_view, text);
8177 popup_targets_received (GtkClipboard *clipboard,
8178 GtkSelectionData *data,
8181 PopupInfo *info = user_data;
8182 GtkTextView *text_view;
8183 GtkTextViewPrivate *priv;
8185 text_view = info->text_view;
8186 priv = text_view->priv;
8188 if (gtk_widget_get_realized (GTK_WIDGET (text_view)))
8190 /* We implicitely rely here on the fact that if we are pasting ourself, we'll
8191 * have text targets as well as the private GTK_TEXT_BUFFER_CONTENTS target.
8193 gboolean clipboard_contains_text;
8194 GtkWidget *menuitem;
8196 gboolean have_selection;
8197 gboolean can_insert;
8199 GtkTextIter sel_start, sel_end;
8200 gboolean show_input_method_menu;
8201 gboolean show_unicode_menu;
8203 clipboard_contains_text = gtk_selection_data_targets_include_text (data);
8205 if (priv->popup_menu)
8206 gtk_widget_destroy (priv->popup_menu);
8208 priv->popup_menu = gtk_menu_new ();
8210 gtk_menu_attach_to_widget (GTK_MENU (priv->popup_menu),
8211 GTK_WIDGET (text_view),
8214 have_selection = gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
8215 &sel_start, &sel_end);
8217 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
8219 gtk_text_buffer_get_insert (get_buffer (text_view)));
8221 can_insert = gtk_text_iter_can_insert (&iter, priv->editable);
8223 append_action_signal (text_view, priv->popup_menu, GTK_STOCK_CUT, "cut-clipboard",
8225 range_contains_editable_text (&sel_start, &sel_end,
8227 append_action_signal (text_view, priv->popup_menu, GTK_STOCK_COPY, "copy-clipboard",
8229 append_action_signal (text_view, priv->popup_menu, GTK_STOCK_PASTE, "paste-clipboard",
8230 can_insert && clipboard_contains_text);
8232 menuitem = gtk_image_menu_item_new_from_stock (GTK_STOCK_DELETE, NULL);
8233 gtk_widget_set_sensitive (menuitem,
8235 range_contains_editable_text (&sel_start, &sel_end,
8237 g_signal_connect_swapped (menuitem, "activate",
8238 G_CALLBACK (delete_cb), text_view);
8239 gtk_widget_show (menuitem);
8240 gtk_menu_shell_append (GTK_MENU_SHELL (priv->popup_menu), menuitem);
8242 menuitem = gtk_separator_menu_item_new ();
8243 gtk_widget_show (menuitem);
8244 gtk_menu_shell_append (GTK_MENU_SHELL (priv->popup_menu), menuitem);
8246 menuitem = gtk_image_menu_item_new_from_stock (GTK_STOCK_SELECT_ALL, NULL);
8247 g_signal_connect (menuitem, "activate",
8248 G_CALLBACK (select_all_cb), text_view);
8249 gtk_widget_show (menuitem);
8250 gtk_menu_shell_append (GTK_MENU_SHELL (priv->popup_menu), menuitem);
8252 g_object_get (gtk_widget_get_settings (GTK_WIDGET (text_view)),
8253 "gtk-show-input-method-menu", &show_input_method_menu,
8254 "gtk-show-unicode-menu", &show_unicode_menu,
8257 if (show_input_method_menu || show_unicode_menu)
8259 menuitem = gtk_separator_menu_item_new ();
8260 gtk_widget_show (menuitem);
8261 gtk_menu_shell_append (GTK_MENU_SHELL (priv->popup_menu), menuitem);
8264 if (show_input_method_menu)
8266 menuitem = gtk_menu_item_new_with_mnemonic (_("Input _Methods"));
8267 gtk_widget_show (menuitem);
8268 gtk_widget_set_sensitive (menuitem, can_insert);
8270 submenu = gtk_menu_new ();
8271 gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), submenu);
8272 gtk_menu_shell_append (GTK_MENU_SHELL (priv->popup_menu), menuitem);
8274 gtk_im_multicontext_append_menuitems (GTK_IM_MULTICONTEXT (priv->im_context),
8275 GTK_MENU_SHELL (submenu));
8278 if (show_unicode_menu)
8280 menuitem = gtk_menu_item_new_with_mnemonic (_("_Insert Unicode Control Character"));
8281 gtk_widget_show (menuitem);
8282 gtk_widget_set_sensitive (menuitem, can_insert);
8284 submenu = gtk_menu_new ();
8285 gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), submenu);
8286 gtk_menu_shell_append (GTK_MENU_SHELL (priv->popup_menu), menuitem);
8288 _gtk_text_util_append_special_char_menuitems (GTK_MENU_SHELL (submenu),
8289 unichar_chosen_func,
8293 g_signal_emit (text_view,
8294 signals[POPULATE_POPUP],
8299 gtk_menu_popup (GTK_MENU (priv->popup_menu), NULL, NULL,
8301 info->button, info->time);
8304 gtk_menu_popup (GTK_MENU (priv->popup_menu), NULL, NULL,
8305 popup_position_func, text_view,
8306 0, gtk_get_current_event_time ());
8307 gtk_menu_shell_select_first (GTK_MENU_SHELL (priv->popup_menu), FALSE);
8311 g_object_unref (text_view);
8316 gtk_text_view_do_popup (GtkTextView *text_view,
8317 GdkEventButton *event)
8319 PopupInfo *info = g_new (PopupInfo, 1);
8321 /* In order to know what entries we should make sensitive, we
8322 * ask for the current targets of the clipboard, and when
8323 * we get them, then we actually pop up the menu.
8325 info->text_view = g_object_ref (text_view);
8329 info->button = event->button;
8330 info->time = event->time;
8335 info->time = gtk_get_current_event_time ();
8338 gtk_clipboard_request_contents (gtk_widget_get_clipboard (GTK_WIDGET (text_view),
8339 GDK_SELECTION_CLIPBOARD),
8340 gdk_atom_intern_static_string ("TARGETS"),
8341 popup_targets_received,
8346 gtk_text_view_popup_menu (GtkWidget *widget)
8348 gtk_text_view_do_popup (GTK_TEXT_VIEW (widget), NULL);
8352 /* Child GdkWindows */
8355 static GtkTextWindow*
8356 text_window_new (GtkTextWindowType type,
8359 gint height_request)
8363 win = g_new (GtkTextWindow, 1);
8366 win->widget = widget;
8368 win->bin_window = NULL;
8369 win->requisition.width = width_request;
8370 win->requisition.height = height_request;
8371 win->allocation.width = width_request;
8372 win->allocation.height = height_request;
8373 win->allocation.x = 0;
8374 win->allocation.y = 0;
8380 text_window_free (GtkTextWindow *win)
8383 text_window_unrealize (win);
8389 text_window_realize (GtkTextWindow *win,
8393 GdkWindowAttr attributes;
8394 gint attributes_mask;
8397 attributes.window_type = GDK_WINDOW_CHILD;
8398 attributes.x = win->allocation.x;
8399 attributes.y = win->allocation.y;
8400 attributes.width = win->allocation.width;
8401 attributes.height = win->allocation.height;
8402 attributes.wclass = GDK_INPUT_OUTPUT;
8403 attributes.visual = gtk_widget_get_visual (win->widget);
8404 attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK;
8406 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
8408 window = gtk_widget_get_window (widget);
8410 win->window = gdk_window_new (window,
8411 &attributes, attributes_mask);
8413 gdk_window_show (win->window);
8414 gdk_window_set_user_data (win->window, win->widget);
8415 gdk_window_lower (win->window);
8419 attributes.width = win->allocation.width;
8420 attributes.height = win->allocation.height;
8421 attributes.event_mask = (GDK_EXPOSURE_MASK |
8423 GDK_KEY_PRESS_MASK |
8424 GDK_BUTTON_PRESS_MASK |
8425 GDK_BUTTON_RELEASE_MASK |
8426 GDK_POINTER_MOTION_MASK |
8427 GDK_POINTER_MOTION_HINT_MASK |
8428 gtk_widget_get_events (win->widget));
8430 win->bin_window = gdk_window_new (win->window,
8434 gdk_window_show (win->bin_window);
8435 gdk_window_set_user_data (win->bin_window, win->widget);
8437 if (win->type == GTK_TEXT_WINDOW_TEXT)
8439 if (gtk_widget_is_sensitive (widget))
8442 cursor = gdk_cursor_new_for_display (gdk_drawable_get_display (window),
8444 gdk_window_set_cursor (win->bin_window, cursor);
8445 gdk_cursor_unref (cursor);
8448 gtk_im_context_set_client_window (GTK_TEXT_VIEW (widget)->priv->im_context,
8452 gdk_window_set_background (win->bin_window,
8453 >k_widget_get_style (widget)->base[gtk_widget_get_state (widget)]);
8457 gdk_window_set_background (win->bin_window,
8458 >k_widget_get_style (widget)->bg[gtk_widget_get_state (widget)]);
8461 g_object_set_qdata (G_OBJECT (win->window),
8462 g_quark_from_static_string ("gtk-text-view-text-window"),
8465 g_object_set_qdata (G_OBJECT (win->bin_window),
8466 g_quark_from_static_string ("gtk-text-view-text-window"),
8471 text_window_unrealize (GtkTextWindow *win)
8473 if (win->type == GTK_TEXT_WINDOW_TEXT)
8475 gtk_im_context_set_client_window (GTK_TEXT_VIEW (win->widget)->priv->im_context,
8479 gdk_window_set_user_data (win->window, NULL);
8480 gdk_window_set_user_data (win->bin_window, NULL);
8481 gdk_window_destroy (win->bin_window);
8482 gdk_window_destroy (win->window);
8484 win->bin_window = NULL;
8488 text_window_size_allocate (GtkTextWindow *win,
8491 win->allocation = *rect;
8495 gdk_window_move_resize (win->window,
8497 rect->width, rect->height);
8499 gdk_window_resize (win->bin_window,
8500 rect->width, rect->height);
8505 text_window_scroll (GtkTextWindow *win,
8509 if (dx != 0 || dy != 0)
8511 gdk_window_scroll (win->bin_window, dx, dy);
8516 text_window_invalidate_rect (GtkTextWindow *win,
8519 GdkRectangle window_rect;
8521 gtk_text_view_buffer_to_window_coords (GTK_TEXT_VIEW (win->widget),
8528 window_rect.width = rect->width;
8529 window_rect.height = rect->height;
8531 /* Adjust the rect as appropriate */
8535 case GTK_TEXT_WINDOW_TEXT:
8538 case GTK_TEXT_WINDOW_LEFT:
8539 case GTK_TEXT_WINDOW_RIGHT:
8541 window_rect.width = win->allocation.width;
8544 case GTK_TEXT_WINDOW_TOP:
8545 case GTK_TEXT_WINDOW_BOTTOM:
8547 window_rect.height = win->allocation.height;
8551 g_warning ("%s: bug!", G_STRFUNC);
8556 gdk_window_invalidate_rect (win->bin_window, &window_rect, FALSE);
8560 cairo_t *cr = gdk_cairo_create (win->bin_window);
8561 gdk_cairo_rectangle (cr, &window_rect);
8562 cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); /* red */
8570 text_window_invalidate_cursors (GtkTextWindow *win)
8572 GtkTextView *text_view;
8573 GtkTextViewPrivate *priv;
8575 GdkRectangle strong;
8577 gboolean draw_arrow;
8578 gfloat cursor_aspect_ratio;
8582 text_view = GTK_TEXT_VIEW (win->widget);
8583 priv = text_view->priv;
8585 gtk_text_buffer_get_iter_at_mark (priv->buffer, &iter,
8586 gtk_text_buffer_get_insert (priv->buffer));
8588 if (_gtk_text_layout_get_block_cursor (priv->layout, &strong))
8590 text_window_invalidate_rect (win, &strong);
8594 gtk_text_layout_get_cursor_locations (priv->layout, &iter,
8597 /* cursor width calculation as in gtkstyle.c:draw_insertion_cursor(),
8598 * ignoring the text direction be exposing both sides of the cursor
8601 draw_arrow = (strong.x != weak.x || strong.y != weak.y);
8603 gtk_widget_style_get (win->widget,
8604 "cursor-aspect-ratio", &cursor_aspect_ratio,
8607 stem_width = strong.height * cursor_aspect_ratio + 1;
8608 arrow_width = stem_width + 1;
8610 strong.width = stem_width;
8612 /* round up to the next even number */
8616 strong.x -= stem_width / 2;
8617 strong.width += stem_width;
8621 strong.x -= arrow_width;
8622 strong.width += arrow_width * 2;
8625 text_window_invalidate_rect (win, &strong);
8627 if (draw_arrow) /* == have weak */
8629 stem_width = weak.height * cursor_aspect_ratio + 1;
8630 arrow_width = stem_width + 1;
8632 weak.width = stem_width;
8634 /* round up to the next even number */
8638 weak.x -= stem_width / 2;
8639 weak.width += stem_width;
8641 weak.x -= arrow_width;
8642 weak.width += arrow_width * 2;
8644 text_window_invalidate_rect (win, &weak);
8649 text_window_get_width (GtkTextWindow *win)
8651 return win->allocation.width;
8655 text_window_get_height (GtkTextWindow *win)
8657 return win->allocation.height;
8664 * gtk_text_view_get_window:
8665 * @text_view: a #GtkTextView
8666 * @win: window to get
8668 * Retrieves the #GdkWindow corresponding to an area of the text view;
8669 * possible windows include the overall widget window, child windows
8670 * on the left, right, top, bottom, and the window that displays the
8671 * text buffer. Windows are %NULL and nonexistent if their width or
8672 * height is 0, and are nonexistent before the widget has been
8675 * Return value: (transfer none): a #GdkWindow, or %NULL
8678 gtk_text_view_get_window (GtkTextView *text_view,
8679 GtkTextWindowType win)
8681 GtkTextViewPrivate *priv = text_view->priv;
8683 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
8687 case GTK_TEXT_WINDOW_WIDGET:
8688 return gtk_widget_get_window (GTK_WIDGET (text_view));
8691 case GTK_TEXT_WINDOW_TEXT:
8692 return priv->text_window->bin_window;
8695 case GTK_TEXT_WINDOW_LEFT:
8696 if (priv->left_window)
8697 return priv->left_window->bin_window;
8702 case GTK_TEXT_WINDOW_RIGHT:
8703 if (priv->right_window)
8704 return priv->right_window->bin_window;
8709 case GTK_TEXT_WINDOW_TOP:
8710 if (priv->top_window)
8711 return priv->top_window->bin_window;
8716 case GTK_TEXT_WINDOW_BOTTOM:
8717 if (priv->bottom_window)
8718 return priv->bottom_window->bin_window;
8723 case GTK_TEXT_WINDOW_PRIVATE:
8724 g_warning ("%s: You can't get GTK_TEXT_WINDOW_PRIVATE, it has \"PRIVATE\" in the name because it is private.", G_STRFUNC);
8729 g_warning ("%s: Unknown GtkTextWindowType", G_STRFUNC);
8734 * gtk_text_view_get_window_type:
8735 * @text_view: a #GtkTextView
8736 * @window: a window type
8738 * Usually used to find out which window an event corresponds to.
8739 * If you connect to an event signal on @text_view, this function
8740 * should be called on <literal>event->window</literal> to
8741 * see which window it was.
8743 * Return value: the window type.
8746 gtk_text_view_get_window_type (GtkTextView *text_view,
8751 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
8752 g_return_val_if_fail (GDK_IS_WINDOW (window), 0);
8754 if (window == gtk_widget_get_window (GTK_WIDGET (text_view)))
8755 return GTK_TEXT_WINDOW_WIDGET;
8757 win = g_object_get_qdata (G_OBJECT (window),
8758 g_quark_try_string ("gtk-text-view-text-window"));
8764 return GTK_TEXT_WINDOW_PRIVATE;
8769 buffer_to_widget (GtkTextView *text_view,
8775 GtkTextViewPrivate *priv = text_view->priv;
8779 *window_x = buffer_x - priv->xoffset;
8780 *window_x += priv->text_window->allocation.x;
8785 *window_y = buffer_y - priv->yoffset;
8786 *window_y += priv->text_window->allocation.y;
8791 widget_to_text_window (GtkTextWindow *win,
8798 *window_x = widget_x - win->allocation.x;
8801 *window_y = widget_y - win->allocation.y;
8805 buffer_to_text_window (GtkTextView *text_view,
8814 g_warning ("Attempt to convert text buffer coordinates to coordinates "
8815 "for a nonexistent or private child window of GtkTextView");
8819 buffer_to_widget (text_view,
8821 window_x, window_y);
8823 widget_to_text_window (win,
8824 window_x ? *window_x : 0,
8825 window_y ? *window_y : 0,
8831 * gtk_text_view_buffer_to_window_coords:
8832 * @text_view: a #GtkTextView
8833 * @win: a #GtkTextWindowType except #GTK_TEXT_WINDOW_PRIVATE
8834 * @buffer_x: buffer x coordinate
8835 * @buffer_y: buffer y coordinate
8836 * @window_x: (out) (allow-none): window x coordinate return location or %NULL
8837 * @window_y: (out) (allow-none): window y coordinate return location or %NULL
8839 * Converts coordinate (@buffer_x, @buffer_y) to coordinates for the window
8840 * @win, and stores the result in (@window_x, @window_y).
8842 * Note that you can't convert coordinates for a nonexisting window (see
8843 * gtk_text_view_set_border_window_size()).
8846 gtk_text_view_buffer_to_window_coords (GtkTextView *text_view,
8847 GtkTextWindowType win,
8853 GtkTextViewPrivate *priv = text_view->priv;
8855 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
8859 case GTK_TEXT_WINDOW_WIDGET:
8860 buffer_to_widget (text_view,
8862 window_x, window_y);
8865 case GTK_TEXT_WINDOW_TEXT:
8867 *window_x = buffer_x - priv->xoffset;
8869 *window_y = buffer_y - priv->yoffset;
8872 case GTK_TEXT_WINDOW_LEFT:
8873 buffer_to_text_window (text_view,
8876 window_x, window_y);
8879 case GTK_TEXT_WINDOW_RIGHT:
8880 buffer_to_text_window (text_view,
8883 window_x, window_y);
8886 case GTK_TEXT_WINDOW_TOP:
8887 buffer_to_text_window (text_view,
8890 window_x, window_y);
8893 case GTK_TEXT_WINDOW_BOTTOM:
8894 buffer_to_text_window (text_view,
8895 priv->bottom_window,
8897 window_x, window_y);
8900 case GTK_TEXT_WINDOW_PRIVATE:
8901 g_warning ("%s: can't get coords for private windows", G_STRFUNC);
8905 g_warning ("%s: Unknown GtkTextWindowType", G_STRFUNC);
8911 widget_to_buffer (GtkTextView *text_view,
8917 GtkTextViewPrivate *priv = text_view->priv;
8921 *buffer_x = widget_x + priv->xoffset;
8922 *buffer_x -= priv->text_window->allocation.x;
8927 *buffer_y = widget_y + priv->yoffset;
8928 *buffer_y -= priv->text_window->allocation.y;
8933 text_window_to_widget (GtkTextWindow *win,
8940 *widget_x = window_x + win->allocation.x;
8943 *widget_y = window_y + win->allocation.y;
8947 text_window_to_buffer (GtkTextView *text_view,
8956 g_warning ("Attempt to convert GtkTextView buffer coordinates into "
8957 "coordinates for a nonexistent child window.");
8961 text_window_to_widget (win,
8967 widget_to_buffer (text_view,
8968 buffer_x ? *buffer_x : 0,
8969 buffer_y ? *buffer_y : 0,
8975 * gtk_text_view_window_to_buffer_coords:
8976 * @text_view: a #GtkTextView
8977 * @win: a #GtkTextWindowType except #GTK_TEXT_WINDOW_PRIVATE
8978 * @window_x: window x coordinate
8979 * @window_y: window y coordinate
8980 * @buffer_x: (out) (allow-none): buffer x coordinate return location or %NULL
8981 * @buffer_y: (out) (allow-none): buffer y coordinate return location or %NULL
8983 * Converts coordinates on the window identified by @win to buffer
8984 * coordinates, storing the result in (@buffer_x,@buffer_y).
8986 * Note that you can't convert coordinates for a nonexisting window (see
8987 * gtk_text_view_set_border_window_size()).
8990 gtk_text_view_window_to_buffer_coords (GtkTextView *text_view,
8991 GtkTextWindowType win,
8997 GtkTextViewPrivate *priv = text_view->priv;
8999 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
9003 case GTK_TEXT_WINDOW_WIDGET:
9004 widget_to_buffer (text_view,
9006 buffer_x, buffer_y);
9009 case GTK_TEXT_WINDOW_TEXT:
9011 *buffer_x = window_x + priv->xoffset;
9013 *buffer_y = window_y + priv->yoffset;
9016 case GTK_TEXT_WINDOW_LEFT:
9017 text_window_to_buffer (text_view,
9020 buffer_x, buffer_y);
9023 case GTK_TEXT_WINDOW_RIGHT:
9024 text_window_to_buffer (text_view,
9027 buffer_x, buffer_y);
9030 case GTK_TEXT_WINDOW_TOP:
9031 text_window_to_buffer (text_view,
9034 buffer_x, buffer_y);
9037 case GTK_TEXT_WINDOW_BOTTOM:
9038 text_window_to_buffer (text_view,
9039 priv->bottom_window,
9041 buffer_x, buffer_y);
9044 case GTK_TEXT_WINDOW_PRIVATE:
9045 g_warning ("%s: can't get coords for private windows", G_STRFUNC);
9049 g_warning ("%s: Unknown GtkTextWindowType", G_STRFUNC);
9055 set_window_width (GtkTextView *text_view,
9057 GtkTextWindowType type,
9058 GtkTextWindow **winp)
9064 text_window_free (*winp);
9066 gtk_widget_queue_resize (GTK_WIDGET (text_view));
9073 *winp = text_window_new (type,
9074 GTK_WIDGET (text_view),
9076 /* if the widget is already realized we need to realize the child manually */
9077 if (gtk_widget_get_realized (GTK_WIDGET (text_view)))
9078 text_window_realize (*winp, GTK_WIDGET (text_view));
9082 if ((*winp)->requisition.width == width)
9085 (*winp)->requisition.width = width;
9088 gtk_widget_queue_resize (GTK_WIDGET (text_view));
9094 set_window_height (GtkTextView *text_view,
9096 GtkTextWindowType type,
9097 GtkTextWindow **winp)
9103 text_window_free (*winp);
9105 gtk_widget_queue_resize (GTK_WIDGET (text_view));
9112 *winp = text_window_new (type,
9113 GTK_WIDGET (text_view),
9116 /* if the widget is already realized we need to realize the child manually */
9117 if (gtk_widget_get_realized (GTK_WIDGET (text_view)))
9118 text_window_realize (*winp, GTK_WIDGET (text_view));
9122 if ((*winp)->requisition.height == height)
9125 (*winp)->requisition.height = height;
9128 gtk_widget_queue_resize (GTK_WIDGET (text_view));
9133 * gtk_text_view_set_border_window_size:
9134 * @text_view: a #GtkTextView
9135 * @type: window to affect
9136 * @size: width or height of the window
9138 * Sets the width of %GTK_TEXT_WINDOW_LEFT or %GTK_TEXT_WINDOW_RIGHT,
9139 * or the height of %GTK_TEXT_WINDOW_TOP or %GTK_TEXT_WINDOW_BOTTOM.
9140 * Automatically destroys the corresponding window if the size is set
9141 * to 0, and creates the window if the size is set to non-zero. This
9142 * function can only be used for the "border windows," it doesn't work
9143 * with #GTK_TEXT_WINDOW_WIDGET, #GTK_TEXT_WINDOW_TEXT, or
9144 * #GTK_TEXT_WINDOW_PRIVATE.
9147 gtk_text_view_set_border_window_size (GtkTextView *text_view,
9148 GtkTextWindowType type,
9151 GtkTextViewPrivate *priv = text_view->priv;
9153 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
9154 g_return_if_fail (size >= 0);
9158 case GTK_TEXT_WINDOW_LEFT:
9159 set_window_width (text_view, size, GTK_TEXT_WINDOW_LEFT,
9160 &priv->left_window);
9163 case GTK_TEXT_WINDOW_RIGHT:
9164 set_window_width (text_view, size, GTK_TEXT_WINDOW_RIGHT,
9165 &priv->right_window);
9168 case GTK_TEXT_WINDOW_TOP:
9169 set_window_height (text_view, size, GTK_TEXT_WINDOW_TOP,
9173 case GTK_TEXT_WINDOW_BOTTOM:
9174 set_window_height (text_view, size, GTK_TEXT_WINDOW_BOTTOM,
9175 &priv->bottom_window);
9179 g_warning ("Can only set size of left/right/top/bottom border windows with gtk_text_view_set_border_window_size()");
9185 * gtk_text_view_get_border_window_size:
9186 * @text_view: a #GtkTextView
9187 * @type: window to return size from
9189 * Gets the width of the specified border window. See
9190 * gtk_text_view_set_border_window_size().
9192 * Return value: width of window
9195 gtk_text_view_get_border_window_size (GtkTextView *text_view,
9196 GtkTextWindowType type)
9198 GtkTextViewPrivate *priv = text_view->priv;
9200 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
9204 case GTK_TEXT_WINDOW_LEFT:
9205 if (priv->left_window)
9206 return priv->left_window->requisition.width;
9209 case GTK_TEXT_WINDOW_RIGHT:
9210 if (priv->right_window)
9211 return priv->right_window->requisition.width;
9214 case GTK_TEXT_WINDOW_TOP:
9215 if (priv->top_window)
9216 return priv->top_window->requisition.height;
9219 case GTK_TEXT_WINDOW_BOTTOM:
9220 if (priv->bottom_window)
9221 return priv->bottom_window->requisition.height;
9225 g_warning ("Can only get size of left/right/top/bottom border windows with gtk_text_view_get_border_window_size()");
9236 static GtkTextViewChild*
9237 text_view_child_new_anchored (GtkWidget *child,
9238 GtkTextChildAnchor *anchor,
9239 GtkTextLayout *layout)
9241 GtkTextViewChild *vc;
9243 vc = g_new (GtkTextViewChild, 1);
9245 vc->type = GTK_TEXT_WINDOW_PRIVATE;
9247 vc->anchor = anchor;
9249 vc->from_top_of_line = 0;
9250 vc->from_left_of_buffer = 0;
9252 g_object_ref (vc->widget);
9253 g_object_ref (vc->anchor);
9255 g_object_set_data (G_OBJECT (child),
9256 I_("gtk-text-view-child"),
9259 gtk_text_child_anchor_register_child (anchor, child, layout);
9264 static GtkTextViewChild*
9265 text_view_child_new_window (GtkWidget *child,
9266 GtkTextWindowType type,
9270 GtkTextViewChild *vc;
9272 vc = g_new (GtkTextViewChild, 1);
9277 vc->from_top_of_line = 0;
9278 vc->from_left_of_buffer = 0;
9280 g_object_ref (vc->widget);
9286 g_object_set_data (G_OBJECT (child),
9287 I_("gtk-text-view-child"),
9294 text_view_child_free (GtkTextViewChild *child)
9296 g_object_set_data (G_OBJECT (child->widget),
9297 I_("gtk-text-view-child"), NULL);
9301 gtk_text_child_anchor_unregister_child (child->anchor,
9303 g_object_unref (child->anchor);
9306 g_object_unref (child->widget);
9312 text_view_child_set_parent_window (GtkTextView *text_view,
9313 GtkTextViewChild *vc)
9316 gtk_widget_set_parent_window (vc->widget,
9317 text_view->priv->text_window->bin_window);
9321 window = gtk_text_view_get_window (text_view,
9323 gtk_widget_set_parent_window (vc->widget, window);
9328 add_child (GtkTextView *text_view,
9329 GtkTextViewChild *vc)
9331 text_view->priv->children = g_slist_prepend (text_view->priv->children,
9334 if (gtk_widget_get_realized (GTK_WIDGET (text_view)))
9335 text_view_child_set_parent_window (text_view, vc);
9337 gtk_widget_set_parent (vc->widget, GTK_WIDGET (text_view));
9341 * gtk_text_view_add_child_at_anchor:
9342 * @text_view: a #GtkTextView
9343 * @child: a #GtkWidget
9344 * @anchor: a #GtkTextChildAnchor in the #GtkTextBuffer for @text_view
9346 * Adds a child widget in the text buffer, at the given @anchor.
9349 gtk_text_view_add_child_at_anchor (GtkTextView *text_view,
9351 GtkTextChildAnchor *anchor)
9353 GtkTextViewChild *vc;
9355 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
9356 g_return_if_fail (GTK_IS_WIDGET (child));
9357 g_return_if_fail (GTK_IS_TEXT_CHILD_ANCHOR (anchor));
9358 g_return_if_fail (gtk_widget_get_parent (child) == NULL);
9360 gtk_text_view_ensure_layout (text_view);
9362 vc = text_view_child_new_anchored (child, anchor,
9363 text_view->priv->layout);
9365 add_child (text_view, vc);
9367 g_assert (vc->widget == child);
9368 g_assert (gtk_widget_get_parent (child) == GTK_WIDGET (text_view));
9372 * gtk_text_view_add_child_in_window:
9373 * @text_view: a #GtkTextView
9374 * @child: a #GtkWidget
9375 * @which_window: which window the child should appear in
9376 * @xpos: X position of child in window coordinates
9377 * @ypos: Y position of child in window coordinates
9379 * Adds a child at fixed coordinates in one of the text widget's
9380 * windows. The window must have nonzero size (see
9381 * gtk_text_view_set_border_window_size()). Note that the child
9382 * coordinates are given relative to the #GdkWindow in question, and
9383 * that these coordinates have no sane relationship to scrolling. When
9384 * placing a child in #GTK_TEXT_WINDOW_WIDGET, scrolling is
9385 * irrelevant, the child floats above all scrollable areas. But when
9386 * placing a child in one of the scrollable windows (border windows or
9387 * text window), you'll need to compute the child's correct position
9388 * in buffer coordinates any time scrolling occurs or buffer changes
9389 * occur, and then call gtk_text_view_move_child() to update the
9390 * child's position. Unfortunately there's no good way to detect that
9391 * scrolling has occurred, using the current API; a possible hack
9392 * would be to update all child positions when the scroll adjustments
9393 * change or the text buffer changes. See bug 64518 on
9394 * bugzilla.gnome.org for status of fixing this issue.
9397 gtk_text_view_add_child_in_window (GtkTextView *text_view,
9399 GtkTextWindowType which_window,
9403 GtkTextViewChild *vc;
9405 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
9406 g_return_if_fail (GTK_IS_WIDGET (child));
9407 g_return_if_fail (gtk_widget_get_parent (child) == NULL);
9409 vc = text_view_child_new_window (child, which_window,
9412 add_child (text_view, vc);
9414 g_assert (vc->widget == child);
9415 g_assert (gtk_widget_get_parent (child) == GTK_WIDGET (text_view));
9419 * gtk_text_view_move_child:
9420 * @text_view: a #GtkTextView
9421 * @child: child widget already added to the text view
9422 * @xpos: new X position in window coordinates
9423 * @ypos: new Y position in window coordinates
9425 * Updates the position of a child, as for gtk_text_view_add_child_in_window().
9428 gtk_text_view_move_child (GtkTextView *text_view,
9433 GtkTextViewChild *vc;
9435 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
9436 g_return_if_fail (GTK_IS_WIDGET (child));
9437 g_return_if_fail (gtk_widget_get_parent (child) == GTK_WIDGET (text_view));
9439 vc = g_object_get_data (G_OBJECT (child),
9440 "gtk-text-view-child");
9442 g_assert (vc != NULL);
9444 if (vc->x == xpos &&
9451 if (gtk_widget_get_visible (child) &&
9452 gtk_widget_get_visible (GTK_WIDGET (text_view)))
9453 gtk_widget_queue_resize (child);
9457 /* Iterator operations */
9460 * gtk_text_view_forward_display_line:
9461 * @text_view: a #GtkTextView
9462 * @iter: a #GtkTextIter
9464 * Moves the given @iter forward by one display (wrapped) line.
9465 * A display line is different from a paragraph. Paragraphs are
9466 * separated by newlines or other paragraph separator characters.
9467 * Display lines are created by line-wrapping a paragraph. If
9468 * wrapping is turned off, display lines and paragraphs will be the
9469 * same. Display lines are divided differently for each view, since
9470 * they depend on the view's width; paragraphs are the same in all
9471 * views, since they depend on the contents of the #GtkTextBuffer.
9473 * Return value: %TRUE if @iter was moved and is not on the end iterator
9476 gtk_text_view_forward_display_line (GtkTextView *text_view,
9479 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
9480 g_return_val_if_fail (iter != NULL, FALSE);
9482 gtk_text_view_ensure_layout (text_view);
9484 return gtk_text_layout_move_iter_to_next_line (text_view->priv->layout, iter);
9488 * gtk_text_view_backward_display_line:
9489 * @text_view: a #GtkTextView
9490 * @iter: a #GtkTextIter
9492 * Moves the given @iter backward by one display (wrapped) line.
9493 * A display line is different from a paragraph. Paragraphs are
9494 * separated by newlines or other paragraph separator characters.
9495 * Display lines are created by line-wrapping a paragraph. If
9496 * wrapping is turned off, display lines and paragraphs will be the
9497 * same. Display lines are divided differently for each view, since
9498 * they depend on the view's width; paragraphs are the same in all
9499 * views, since they depend on the contents of the #GtkTextBuffer.
9501 * Return value: %TRUE if @iter was moved and is not on the end iterator
9504 gtk_text_view_backward_display_line (GtkTextView *text_view,
9507 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
9508 g_return_val_if_fail (iter != NULL, FALSE);
9510 gtk_text_view_ensure_layout (text_view);
9512 return gtk_text_layout_move_iter_to_previous_line (text_view->priv->layout, iter);
9516 * gtk_text_view_forward_display_line_end:
9517 * @text_view: a #GtkTextView
9518 * @iter: a #GtkTextIter
9520 * Moves the given @iter forward to the next display line end.
9521 * A display line is different from a paragraph. Paragraphs are
9522 * separated by newlines or other paragraph separator characters.
9523 * Display lines are created by line-wrapping a paragraph. If
9524 * wrapping is turned off, display lines and paragraphs will be the
9525 * same. Display lines are divided differently for each view, since
9526 * they depend on the view's width; paragraphs are the same in all
9527 * views, since they depend on the contents of the #GtkTextBuffer.
9529 * Return value: %TRUE if @iter was moved and is not on the end iterator
9532 gtk_text_view_forward_display_line_end (GtkTextView *text_view,
9535 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
9536 g_return_val_if_fail (iter != NULL, FALSE);
9538 gtk_text_view_ensure_layout (text_view);
9540 return gtk_text_layout_move_iter_to_line_end (text_view->priv->layout, iter, 1);
9544 * gtk_text_view_backward_display_line_start:
9545 * @text_view: a #GtkTextView
9546 * @iter: a #GtkTextIter
9548 * Moves the given @iter backward to the next display line start.
9549 * A display line is different from a paragraph. Paragraphs are
9550 * separated by newlines or other paragraph separator characters.
9551 * Display lines are created by line-wrapping a paragraph. If
9552 * wrapping is turned off, display lines and paragraphs will be the
9553 * same. Display lines are divided differently for each view, since
9554 * they depend on the view's width; paragraphs are the same in all
9555 * views, since they depend on the contents of the #GtkTextBuffer.
9557 * Return value: %TRUE if @iter was moved and is not on the end iterator
9560 gtk_text_view_backward_display_line_start (GtkTextView *text_view,
9563 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
9564 g_return_val_if_fail (iter != NULL, FALSE);
9566 gtk_text_view_ensure_layout (text_view);
9568 return gtk_text_layout_move_iter_to_line_end (text_view->priv->layout, iter, -1);
9572 * gtk_text_view_starts_display_line:
9573 * @text_view: a #GtkTextView
9574 * @iter: a #GtkTextIter
9576 * Determines whether @iter is at the start of a display line.
9577 * See gtk_text_view_forward_display_line() for an explanation of
9578 * display lines vs. paragraphs.
9580 * Return value: %TRUE if @iter begins a wrapped line
9583 gtk_text_view_starts_display_line (GtkTextView *text_view,
9584 const GtkTextIter *iter)
9586 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
9587 g_return_val_if_fail (iter != NULL, FALSE);
9589 gtk_text_view_ensure_layout (text_view);
9591 return gtk_text_layout_iter_starts_line (text_view->priv->layout, iter);
9595 * gtk_text_view_move_visually:
9596 * @text_view: a #GtkTextView
9597 * @iter: a #GtkTextIter
9598 * @count: number of characters to move (negative moves left,
9599 * positive moves right)
9601 * Move the iterator a given number of characters visually, treating
9602 * it as the strong cursor position. If @count is positive, then the
9603 * new strong cursor position will be @count positions to the right of
9604 * the old cursor position. If @count is negative then the new strong
9605 * cursor position will be @count positions to the left of the old
9608 * In the presence of bi-directional text, the correspondence
9609 * between logical and visual order will depend on the direction
9610 * of the current run, and there may be jumps when the cursor
9611 * is moved off of the end of a run.
9613 * Return value: %TRUE if @iter moved and is not on the end iterator
9616 gtk_text_view_move_visually (GtkTextView *text_view,
9620 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
9621 g_return_val_if_fail (iter != NULL, FALSE);
9623 gtk_text_view_ensure_layout (text_view);
9625 return gtk_text_layout_move_iter_visually (text_view->priv->layout, iter, count);