1 /* GTK - The GIMP Toolkit
2 * gtktextview.c Copyright (C) 2000 Red Hat, Inc.
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
21 * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
22 * file for a list of people on the GTK+ Team. See the ChangeLog
23 * files for a list of changes. These files are distributed with
24 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
29 #define GTK_TEXT_USE_INTERNAL_UNSUPPORTED_API
30 #include "gtkbindings.h"
32 #include "gtkimagemenuitem.h"
36 #include "gtkmenuitem.h"
37 #include "gtkseparatormenuitem.h"
38 #include "gtksettings.h"
39 #include "gtksignal.h"
41 #include "gtktextdisplay.h"
42 #include "gtktextview.h"
43 #include "gtkimmulticontext.h"
44 #include "gdk/gdkkeysyms.h"
47 /* How scrolling, validation, exposes, etc. work.
49 * The expose_event handler has the invariant that the onscreen lines
50 * have been validated.
52 * There are two ways that onscreen lines can become invalid. The first
53 * is to change which lines are onscreen. This happens when the value
54 * of a scroll adjustment changes. So the code path begins in
55 * gtk_text_view_value_changed() and goes like this:
56 * - gdk_window_scroll() to reflect the new adjustment value
57 * - validate the lines that were moved onscreen
58 * - gdk_window_process_updates() to handle the exposes immediately
60 * The second way is that you get the "invalidated" signal from the layout,
61 * indicating that lines have become invalid. This code path begins in
62 * invalidated_handler() and goes like this:
63 * - install high-priority idle which does the rest of the steps
64 * - if a scroll is pending from scroll_to_mark(), do the scroll,
65 * jumping to the gtk_text_view_value_changed() code path
66 * - otherwise, validate the onscreen lines
67 * - DO NOT process updates
69 * In both cases, validating the onscreen lines can trigger a scroll
70 * due to maintaining the first_para on the top of the screen.
71 * If validation triggers a scroll, we jump to the top of the code path
72 * for value_changed, and bail out of the current code path.
74 * Also, in size_allocate, if we invalidate some lines from changing
75 * the layout width, we need to go ahead and run the high-priority idle,
76 * because GTK sends exposes right after doing the size allocates without
77 * returning to the main loop. This is also why the high-priority idle
78 * is at a higher priority than resizing.
82 #define SCREEN_WIDTH(widget) text_window_get_width (GTK_TEXT_VIEW (widget)->text_window)
83 #define SCREEN_HEIGHT(widget) text_window_get_height (GTK_TEXT_VIEW (widget)->text_window)
86 #define DEBUG_VALIDATION_AND_SCROLLING
89 #ifdef DEBUG_VALIDATION_AND_SCROLLING
95 struct _GtkTextPendingScroll
98 gdouble within_margin;
106 SET_SCROLL_ADJUSTMENTS,
122 PROP_PIXELS_ABOVE_LINES,
123 PROP_PIXELS_BELOW_LINES,
124 PROP_PIXELS_INSIDE_WRAP,
136 static void gtk_text_view_init (GtkTextView *text_view);
137 static void gtk_text_view_class_init (GtkTextViewClass *klass);
138 static void gtk_text_view_destroy (GtkObject *object);
139 static void gtk_text_view_finalize (GObject *object);
140 static void gtk_text_view_set_property (GObject *object,
144 static void gtk_text_view_get_property (GObject *object,
148 static void gtk_text_view_size_request (GtkWidget *widget,
149 GtkRequisition *requisition);
150 static void gtk_text_view_size_allocate (GtkWidget *widget,
151 GtkAllocation *allocation);
152 static void gtk_text_view_realize (GtkWidget *widget);
153 static void gtk_text_view_unrealize (GtkWidget *widget);
154 static void gtk_text_view_style_set (GtkWidget *widget,
155 GtkStyle *previous_style);
156 static void gtk_text_view_direction_changed (GtkWidget *widget,
157 GtkTextDirection previous_direction);
158 static gint gtk_text_view_event (GtkWidget *widget,
160 static gint gtk_text_view_key_press_event (GtkWidget *widget,
162 static gint gtk_text_view_key_release_event (GtkWidget *widget,
164 static gint gtk_text_view_button_press_event (GtkWidget *widget,
165 GdkEventButton *event);
166 static gint gtk_text_view_button_release_event (GtkWidget *widget,
167 GdkEventButton *event);
168 static gint gtk_text_view_focus_in_event (GtkWidget *widget,
169 GdkEventFocus *event);
170 static gint gtk_text_view_focus_out_event (GtkWidget *widget,
171 GdkEventFocus *event);
172 static gint gtk_text_view_motion_event (GtkWidget *widget,
173 GdkEventMotion *event);
174 static gint gtk_text_view_expose_event (GtkWidget *widget,
175 GdkEventExpose *expose);
176 static void gtk_text_view_draw_focus (GtkWidget *widget);
177 static void gtk_text_view_grab_focus (GtkWidget *widget);
179 /* Source side drag signals */
180 static void gtk_text_view_drag_begin (GtkWidget *widget,
181 GdkDragContext *context);
182 static void gtk_text_view_drag_end (GtkWidget *widget,
183 GdkDragContext *context);
184 static void gtk_text_view_drag_data_get (GtkWidget *widget,
185 GdkDragContext *context,
186 GtkSelectionData *selection_data,
189 static void gtk_text_view_drag_data_delete (GtkWidget *widget,
190 GdkDragContext *context);
192 /* Target side drag signals */
193 static void gtk_text_view_drag_leave (GtkWidget *widget,
194 GdkDragContext *context,
196 static gboolean gtk_text_view_drag_motion (GtkWidget *widget,
197 GdkDragContext *context,
201 static gboolean gtk_text_view_drag_drop (GtkWidget *widget,
202 GdkDragContext *context,
206 static void gtk_text_view_drag_data_received (GtkWidget *widget,
207 GdkDragContext *context,
210 GtkSelectionData *selection_data,
214 static void gtk_text_view_set_scroll_adjustments (GtkTextView *text_view,
216 GtkAdjustment *vadj);
217 static void gtk_text_view_popup_menu (GtkWidget *widget);
219 static void gtk_text_view_move_cursor (GtkTextView *text_view,
220 GtkMovementStep step,
222 gboolean extend_selection);
223 static void gtk_text_view_set_anchor (GtkTextView *text_view);
224 static void gtk_text_view_scroll_pages (GtkTextView *text_view,
226 static void gtk_text_view_insert_at_cursor (GtkTextView *text_view,
228 static void gtk_text_view_delete_from_cursor (GtkTextView *text_view,
231 static void gtk_text_view_cut_clipboard (GtkTextView *text_view);
232 static void gtk_text_view_copy_clipboard (GtkTextView *text_view);
233 static void gtk_text_view_paste_clipboard (GtkTextView *text_view);
234 static void gtk_text_view_toggle_overwrite (GtkTextView *text_view);
235 static void gtk_text_view_unselect (GtkTextView *text_view);
237 static void gtk_text_view_validate_onscreen (GtkTextView *text_view);
238 static void gtk_text_view_get_first_para_iter (GtkTextView *text_view,
240 static void gtk_text_view_update_layout_width (GtkTextView *text_view);
241 static void gtk_text_view_set_attributes_from_style (GtkTextView *text_view,
242 GtkTextAttributes *values,
244 static void gtk_text_view_ensure_layout (GtkTextView *text_view);
245 static void gtk_text_view_destroy_layout (GtkTextView *text_view);
246 static void gtk_text_view_check_keymap_direction (GtkTextView *text_view);
247 static void gtk_text_view_reset_im_context (GtkTextView *text_view);
248 static void gtk_text_view_start_selection_drag (GtkTextView *text_view,
249 const GtkTextIter *iter,
250 GdkEventButton *event);
251 static gboolean gtk_text_view_end_selection_drag (GtkTextView *text_view,
252 GdkEventButton *event);
253 static void gtk_text_view_start_selection_dnd (GtkTextView *text_view,
254 const GtkTextIter *iter,
255 GdkEventMotion *event);
256 static void gtk_text_view_check_cursor_blink (GtkTextView *text_view);
257 static void gtk_text_view_pend_cursor_blink (GtkTextView *text_view);
258 static void gtk_text_view_stop_cursor_blink (GtkTextView *text_view);
260 static void gtk_text_view_value_changed (GtkAdjustment *adj,
262 static void gtk_text_view_commit_handler (GtkIMContext *context,
264 GtkTextView *text_view);
265 static void gtk_text_view_preedit_changed_handler (GtkIMContext *context,
266 GtkTextView *text_view);
268 static void gtk_text_view_mark_set_handler (GtkTextBuffer *buffer,
269 const GtkTextIter *location,
272 static void gtk_text_view_get_virtual_cursor_pos (GtkTextView *text_view,
275 static void gtk_text_view_set_virtual_cursor_pos (GtkTextView *text_view,
279 static GtkAdjustment* get_hadjustment (GtkTextView *text_view);
280 static GtkAdjustment* get_vadjustment (GtkTextView *text_view);
282 static void gtk_text_view_do_popup (GtkTextView *text_view,
283 GdkEventButton *event);
285 static void gtk_text_view_queue_scroll (GtkTextView *text_view,
287 gdouble within_margin,
292 static gboolean gtk_text_view_flush_scroll (GtkTextView *text_view);
293 static void gtk_text_view_update_adjustments (GtkTextView *text_view);
294 static void gtk_text_view_invalidate (GtkTextView *text_view);
296 static void gtk_text_view_update_im_spot_location (GtkTextView *text_view);
298 /* Container methods */
299 static void gtk_text_view_add (GtkContainer *container,
301 static void gtk_text_view_remove (GtkContainer *container,
303 static void gtk_text_view_forall (GtkContainer *container,
304 gboolean include_internals,
305 GtkCallback callback,
306 gpointer callback_data);
308 /* FIXME probably need the focus methods. */
310 typedef struct _GtkTextViewChild GtkTextViewChild;
312 struct _GtkTextViewChild
316 GtkTextChildAnchor *anchor;
318 gint from_top_of_line;
319 gint from_left_of_buffer;
321 /* These are ignored if anchor != NULL */
322 GtkTextWindowType type;
327 static GtkTextViewChild* text_view_child_new_anchored (GtkWidget *child,
328 GtkTextChildAnchor *anchor,
329 GtkTextLayout *layout);
330 static GtkTextViewChild* text_view_child_new_window (GtkWidget *child,
331 GtkTextWindowType type,
334 static void text_view_child_free (GtkTextViewChild *child);
335 static void text_view_child_set_parent_window (GtkTextView *text_view,
336 GtkTextViewChild *child);
338 struct _GtkTextWindow
340 GtkTextWindowType type;
343 GdkWindow *bin_window;
344 GtkRequisition requisition;
345 GdkRectangle allocation;
348 static GtkTextWindow *text_window_new (GtkTextWindowType type,
351 gint height_request);
352 static void text_window_free (GtkTextWindow *win);
353 static void text_window_realize (GtkTextWindow *win,
355 static void text_window_unrealize (GtkTextWindow *win);
356 static void text_window_size_allocate (GtkTextWindow *win,
358 static void text_window_scroll (GtkTextWindow *win,
361 static void text_window_invalidate_rect (GtkTextWindow *win,
364 static gint text_window_get_width (GtkTextWindow *win);
365 static gint text_window_get_height (GtkTextWindow *win);
366 static void text_window_get_allocation (GtkTextWindow *win,
374 TARGET_COMPOUND_TEXT,
376 TARGET_TEXT_BUFFER_CONTENTS
379 static GtkTargetEntry target_table[] = {
380 { "GTK_TEXT_BUFFER_CONTENTS", GTK_TARGET_SAME_APP,
381 TARGET_TEXT_BUFFER_CONTENTS },
382 { "UTF8_STRING", 0, TARGET_UTF8_STRING },
383 { "COMPOUND_TEXT", 0, TARGET_COMPOUND_TEXT },
384 { "TEXT", 0, TARGET_TEXT },
385 { "text/plain", 0, TARGET_STRING },
386 { "STRING", 0, TARGET_STRING }
389 static GtkContainerClass *parent_class = NULL;
390 static guint signals[LAST_SIGNAL] = { 0 };
393 gtk_text_view_get_type (void)
395 static GtkType our_type = 0;
399 static const GtkTypeInfo our_info =
402 sizeof (GtkTextView),
403 sizeof (GtkTextViewClass),
404 (GtkClassInitFunc) gtk_text_view_class_init,
405 (GtkObjectInitFunc) gtk_text_view_init,
406 /* reserved_1 */ NULL,
407 /* reserved_2 */ NULL,
408 (GtkClassInitFunc) NULL
411 our_type = gtk_type_unique (GTK_TYPE_CONTAINER, &our_info);
418 add_move_binding (GtkBindingSet *binding_set,
421 GtkMovementStep step,
424 g_return_if_fail ((modmask & GDK_SHIFT_MASK) == 0);
426 gtk_binding_entry_add_signal (binding_set, keyval, modmask,
430 GTK_TYPE_BOOL, FALSE);
432 /* Selection-extending version */
433 gtk_binding_entry_add_signal (binding_set, keyval, modmask | GDK_SHIFT_MASK,
437 GTK_TYPE_BOOL, TRUE);
441 gtk_text_view_class_init (GtkTextViewClass *klass)
443 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
444 GtkObjectClass *object_class = GTK_OBJECT_CLASS (klass);
445 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
446 GtkContainerClass *container_class = GTK_CONTAINER_CLASS (klass);
447 GtkBindingSet *binding_set;
449 parent_class = gtk_type_class (GTK_TYPE_CONTAINER);
451 /* Default handlers and virtual methods
453 gobject_class->set_property = gtk_text_view_set_property;
454 gobject_class->get_property = gtk_text_view_get_property;
456 object_class->destroy = gtk_text_view_destroy;
457 gobject_class->finalize = gtk_text_view_finalize;
459 widget_class->realize = gtk_text_view_realize;
460 widget_class->unrealize = gtk_text_view_unrealize;
461 widget_class->style_set = gtk_text_view_style_set;
462 widget_class->direction_changed = gtk_text_view_direction_changed;
463 widget_class->size_request = gtk_text_view_size_request;
464 widget_class->size_allocate = gtk_text_view_size_allocate;
465 widget_class->event = gtk_text_view_event;
466 widget_class->key_press_event = gtk_text_view_key_press_event;
467 widget_class->key_release_event = gtk_text_view_key_release_event;
468 widget_class->button_press_event = gtk_text_view_button_press_event;
469 widget_class->button_release_event = gtk_text_view_button_release_event;
470 widget_class->focus_in_event = gtk_text_view_focus_in_event;
471 widget_class->focus_out_event = gtk_text_view_focus_out_event;
472 widget_class->motion_notify_event = gtk_text_view_motion_event;
473 widget_class->expose_event = gtk_text_view_expose_event;
474 widget_class->grab_focus = gtk_text_view_grab_focus;
476 widget_class->drag_begin = gtk_text_view_drag_begin;
477 widget_class->drag_end = gtk_text_view_drag_end;
478 widget_class->drag_data_get = gtk_text_view_drag_data_get;
479 widget_class->drag_data_delete = gtk_text_view_drag_data_delete;
481 widget_class->drag_leave = gtk_text_view_drag_leave;
482 widget_class->drag_motion = gtk_text_view_drag_motion;
483 widget_class->drag_drop = gtk_text_view_drag_drop;
484 widget_class->drag_data_received = gtk_text_view_drag_data_received;
486 widget_class->popup_menu = gtk_text_view_popup_menu;
488 container_class->add = gtk_text_view_add;
489 container_class->remove = gtk_text_view_remove;
490 container_class->forall = gtk_text_view_forall;
492 klass->move_cursor = gtk_text_view_move_cursor;
493 klass->set_anchor = gtk_text_view_set_anchor;
494 klass->insert_at_cursor = gtk_text_view_insert_at_cursor;
495 klass->delete_from_cursor = gtk_text_view_delete_from_cursor;
496 klass->cut_clipboard = gtk_text_view_cut_clipboard;
497 klass->copy_clipboard = gtk_text_view_copy_clipboard;
498 klass->paste_clipboard = gtk_text_view_paste_clipboard;
499 klass->toggle_overwrite = gtk_text_view_toggle_overwrite;
500 klass->set_scroll_adjustments = gtk_text_view_set_scroll_adjustments;
506 g_object_class_install_property (gobject_class,
507 PROP_PIXELS_ABOVE_LINES,
508 g_param_spec_int ("pixels_above_lines",
509 _("Pixels Above Lines"),
510 _("Pixels of blank space above paragraphs"),
516 g_object_class_install_property (gobject_class,
517 PROP_PIXELS_BELOW_LINES,
518 g_param_spec_int ("pixels_below_lines",
519 _("Pixels Below Lines"),
520 _("Pixels of blank space below paragraphs"),
526 g_object_class_install_property (gobject_class,
527 PROP_PIXELS_INSIDE_WRAP,
528 g_param_spec_int ("pixels_inside_wrap",
529 _("Pixels Inside Wrap"),
530 _("Pixels of blank space between wrapped lines in a paragraph"),
536 g_object_class_install_property (gobject_class,
538 g_param_spec_boolean ("editable",
540 _("Whether the text can be modified by the user"),
544 g_object_class_install_property (gobject_class,
546 g_param_spec_enum ("wrap_mode",
548 _("Whether to wrap lines never, at word boundaries, or at character boundaries"),
553 g_object_class_install_property (gobject_class,
555 g_param_spec_enum ("justification",
557 _("Left, right, or center justification"),
558 GTK_TYPE_JUSTIFICATION,
562 g_object_class_install_property (gobject_class,
564 g_param_spec_int ("left_margin",
566 _("Width of the left margin in pixels"),
572 g_object_class_install_property (gobject_class,
574 g_param_spec_int ("right_margin",
576 _("Width of the right margin in pixels"),
582 g_object_class_install_property (gobject_class,
584 g_param_spec_int ("indent",
586 _("Amount to indent the paragraph, in pixels"),
592 g_object_class_install_property (gobject_class,
594 g_param_spec_boxed ("tabs",
596 _("Custom tabs for this text"),
597 PANGO_TYPE_TAB_ARRAY,
600 g_object_class_install_property (gobject_class,
602 g_param_spec_boolean ("cursor_visible",
604 _("If the insertion cursor is shown"),
613 gtk_widget_class_install_style_property (widget_class,
614 g_param_spec_boxed ("cursor_color",
616 _("Color with which to draw insertion cursor"),
625 signals[MOVE_CURSOR] =
626 gtk_signal_new ("move_cursor",
627 GTK_RUN_LAST | GTK_RUN_ACTION,
628 GTK_CLASS_TYPE (object_class),
629 GTK_SIGNAL_OFFSET (GtkTextViewClass, move_cursor),
630 gtk_marshal_VOID__ENUM_INT_BOOLEAN,
631 GTK_TYPE_NONE, 3, GTK_TYPE_MOVEMENT_STEP, GTK_TYPE_INT, GTK_TYPE_BOOL);
633 signals[SET_ANCHOR] =
634 gtk_signal_new ("set_anchor",
635 GTK_RUN_LAST | GTK_RUN_ACTION,
636 GTK_CLASS_TYPE (object_class),
637 GTK_SIGNAL_OFFSET (GtkTextViewClass, set_anchor),
638 gtk_marshal_VOID__VOID,
641 signals[INSERT_AT_CURSOR] =
642 gtk_signal_new ("insert_at_cursor",
643 GTK_RUN_LAST | GTK_RUN_ACTION,
644 GTK_CLASS_TYPE (object_class),
645 GTK_SIGNAL_OFFSET (GtkTextViewClass, insert_at_cursor),
646 gtk_marshal_VOID__STRING,
647 GTK_TYPE_NONE, 1, GTK_TYPE_STRING);
649 signals[DELETE_FROM_CURSOR] =
650 gtk_signal_new ("delete_from_cursor",
651 GTK_RUN_LAST | GTK_RUN_ACTION,
652 GTK_CLASS_TYPE (object_class),
653 GTK_SIGNAL_OFFSET (GtkTextViewClass, delete_from_cursor),
654 gtk_marshal_VOID__ENUM_INT,
655 GTK_TYPE_NONE, 2, GTK_TYPE_DELETE_TYPE, GTK_TYPE_INT);
657 signals[CUT_CLIPBOARD] =
658 gtk_signal_new ("cut_clipboard",
659 GTK_RUN_LAST | GTK_RUN_ACTION,
660 GTK_CLASS_TYPE (object_class),
661 GTK_SIGNAL_OFFSET (GtkTextViewClass, cut_clipboard),
662 gtk_marshal_VOID__VOID,
665 signals[COPY_CLIPBOARD] =
666 gtk_signal_new ("copy_clipboard",
667 GTK_RUN_LAST | GTK_RUN_ACTION,
668 GTK_CLASS_TYPE (object_class),
669 GTK_SIGNAL_OFFSET (GtkTextViewClass, copy_clipboard),
670 gtk_marshal_VOID__VOID,
673 signals[PASTE_CLIPBOARD] =
674 gtk_signal_new ("paste_clipboard",
675 GTK_RUN_LAST | GTK_RUN_ACTION,
676 GTK_CLASS_TYPE (object_class),
677 GTK_SIGNAL_OFFSET (GtkTextViewClass, paste_clipboard),
678 gtk_marshal_VOID__VOID,
681 signals[TOGGLE_OVERWRITE] =
682 gtk_signal_new ("toggle_overwrite",
683 GTK_RUN_LAST | GTK_RUN_ACTION,
684 GTK_CLASS_TYPE (object_class),
685 GTK_SIGNAL_OFFSET (GtkTextViewClass, toggle_overwrite),
686 gtk_marshal_VOID__VOID,
689 signals[SET_SCROLL_ADJUSTMENTS] =
690 gtk_signal_new ("set_scroll_adjustments",
692 GTK_CLASS_TYPE (object_class),
693 GTK_SIGNAL_OFFSET (GtkTextViewClass, set_scroll_adjustments),
694 gtk_marshal_VOID__OBJECT_OBJECT,
695 GTK_TYPE_NONE, 2, GTK_TYPE_ADJUSTMENT, GTK_TYPE_ADJUSTMENT);
696 widget_class->set_scroll_adjustments_signal = signals[SET_SCROLL_ADJUSTMENTS];
698 signals[POPULATE_POPUP] =
699 gtk_signal_new ("populate_popup",
701 GTK_CLASS_TYPE (object_class),
702 GTK_SIGNAL_OFFSET (GtkTextViewClass, populate_popup),
703 gtk_marshal_VOID__OBJECT,
704 GTK_TYPE_NONE, 1, GTK_TYPE_MENU);
710 binding_set = gtk_binding_set_by_class (klass);
712 /* Moving the insertion point */
713 add_move_binding (binding_set, GDK_Right, 0,
714 GTK_MOVEMENT_VISUAL_POSITIONS, 1);
716 add_move_binding (binding_set, GDK_KP_Right, 0,
717 GTK_MOVEMENT_VISUAL_POSITIONS, 1);
719 add_move_binding (binding_set, GDK_Left, 0,
720 GTK_MOVEMENT_VISUAL_POSITIONS, -1);
722 add_move_binding (binding_set, GDK_KP_Left, 0,
723 GTK_MOVEMENT_VISUAL_POSITIONS, -1);
725 add_move_binding (binding_set, GDK_f, GDK_CONTROL_MASK,
726 GTK_MOVEMENT_LOGICAL_POSITIONS, 1);
728 add_move_binding (binding_set, GDK_b, GDK_CONTROL_MASK,
729 GTK_MOVEMENT_LOGICAL_POSITIONS, -1);
731 add_move_binding (binding_set, GDK_Right, GDK_CONTROL_MASK,
732 GTK_MOVEMENT_WORDS, 1);
734 add_move_binding (binding_set, GDK_KP_Right, GDK_CONTROL_MASK,
735 GTK_MOVEMENT_WORDS, 1);
737 add_move_binding (binding_set, GDK_Left, GDK_CONTROL_MASK,
738 GTK_MOVEMENT_WORDS, -1);
740 add_move_binding (binding_set, GDK_KP_Left, GDK_CONTROL_MASK,
741 GTK_MOVEMENT_WORDS, 1);
743 /* Eventually we want to move by display lines, not paragraphs */
744 add_move_binding (binding_set, GDK_Up, 0,
745 GTK_MOVEMENT_DISPLAY_LINES, -1);
747 add_move_binding (binding_set, GDK_KP_Up, 0,
748 GTK_MOVEMENT_DISPLAY_LINES, -1);
750 add_move_binding (binding_set, GDK_Down, 0,
751 GTK_MOVEMENT_DISPLAY_LINES, 1);
753 add_move_binding (binding_set, GDK_KP_Down, 0,
754 GTK_MOVEMENT_DISPLAY_LINES, 1);
756 add_move_binding (binding_set, GDK_p, GDK_CONTROL_MASK,
757 GTK_MOVEMENT_DISPLAY_LINES, -1);
759 add_move_binding (binding_set, GDK_n, GDK_CONTROL_MASK,
760 GTK_MOVEMENT_DISPLAY_LINES, 1);
762 add_move_binding (binding_set, GDK_Up, GDK_CONTROL_MASK,
763 GTK_MOVEMENT_PARAGRAPHS, -1);
765 add_move_binding (binding_set, GDK_KP_Up, GDK_CONTROL_MASK,
766 GTK_MOVEMENT_PARAGRAPHS, -1);
768 add_move_binding (binding_set, GDK_Down, GDK_CONTROL_MASK,
769 GTK_MOVEMENT_PARAGRAPHS, 1);
771 add_move_binding (binding_set, GDK_KP_Down, GDK_CONTROL_MASK,
772 GTK_MOVEMENT_PARAGRAPHS, 1);
774 add_move_binding (binding_set, GDK_a, GDK_CONTROL_MASK,
775 GTK_MOVEMENT_PARAGRAPH_ENDS, -1);
777 add_move_binding (binding_set, GDK_e, GDK_CONTROL_MASK,
778 GTK_MOVEMENT_PARAGRAPH_ENDS, 1);
780 add_move_binding (binding_set, GDK_f, GDK_MOD1_MASK,
781 GTK_MOVEMENT_WORDS, 1);
783 add_move_binding (binding_set, GDK_b, GDK_MOD1_MASK,
784 GTK_MOVEMENT_WORDS, -1);
786 add_move_binding (binding_set, GDK_Home, 0,
787 GTK_MOVEMENT_DISPLAY_LINE_ENDS, -1);
789 add_move_binding (binding_set, GDK_KP_Home, 0,
790 GTK_MOVEMENT_DISPLAY_LINE_ENDS, -1);
792 add_move_binding (binding_set, GDK_End, 0,
793 GTK_MOVEMENT_DISPLAY_LINE_ENDS, 1);
795 add_move_binding (binding_set, GDK_KP_End, 0,
796 GTK_MOVEMENT_DISPLAY_LINE_ENDS, 1);
798 add_move_binding (binding_set, GDK_Home, GDK_CONTROL_MASK,
799 GTK_MOVEMENT_BUFFER_ENDS, -1);
801 add_move_binding (binding_set, GDK_KP_Home, GDK_CONTROL_MASK,
802 GTK_MOVEMENT_BUFFER_ENDS, -1);
804 add_move_binding (binding_set, GDK_End, GDK_CONTROL_MASK,
805 GTK_MOVEMENT_BUFFER_ENDS, 1);
807 add_move_binding (binding_set, GDK_KP_End, GDK_CONTROL_MASK,
808 GTK_MOVEMENT_BUFFER_ENDS, 1);
810 add_move_binding (binding_set, GDK_Page_Up, 0,
811 GTK_MOVEMENT_PAGES, -1);
813 add_move_binding (binding_set, GDK_KP_Page_Up, 0,
814 GTK_MOVEMENT_PAGES, -1);
816 add_move_binding (binding_set, GDK_Page_Down, 0,
817 GTK_MOVEMENT_PAGES, 1);
819 add_move_binding (binding_set, GDK_KP_Page_Down, 0,
820 GTK_MOVEMENT_PAGES, 1);
822 /* Setting the cut/paste/copy anchor */
823 gtk_binding_entry_add_signal (binding_set, GDK_space, GDK_CONTROL_MASK,
825 gtk_binding_entry_add_signal (binding_set, GDK_KP_Space, GDK_CONTROL_MASK,
829 gtk_binding_entry_add_signal (binding_set, GDK_Delete, 0,
830 "delete_from_cursor", 2,
831 GTK_TYPE_ENUM, GTK_DELETE_CHARS,
834 gtk_binding_entry_add_signal (binding_set, GDK_KP_Delete, 0,
835 "delete_from_cursor", 2,
836 GTK_TYPE_ENUM, GTK_DELETE_CHARS,
839 gtk_binding_entry_add_signal (binding_set, GDK_d, GDK_CONTROL_MASK,
840 "delete_from_cursor", 2,
841 GTK_TYPE_ENUM, GTK_DELETE_CHARS,
844 gtk_binding_entry_add_signal (binding_set, GDK_BackSpace, 0,
845 "delete_from_cursor", 2,
846 GTK_TYPE_ENUM, GTK_DELETE_CHARS,
849 gtk_binding_entry_add_signal (binding_set, GDK_Delete, GDK_CONTROL_MASK,
850 "delete_from_cursor", 2,
851 GTK_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
854 gtk_binding_entry_add_signal (binding_set, GDK_KP_Delete, GDK_CONTROL_MASK,
855 "delete_from_cursor", 2,
856 GTK_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
859 gtk_binding_entry_add_signal (binding_set, GDK_d, GDK_MOD1_MASK,
860 "delete_from_cursor", 2,
861 GTK_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
864 gtk_binding_entry_add_signal (binding_set, GDK_BackSpace, GDK_CONTROL_MASK,
865 "delete_from_cursor", 2,
866 GTK_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
869 gtk_binding_entry_add_signal (binding_set, GDK_k, GDK_CONTROL_MASK,
870 "delete_from_cursor", 2,
871 GTK_TYPE_ENUM, GTK_DELETE_PARAGRAPH_ENDS,
874 gtk_binding_entry_add_signal (binding_set, GDK_u, GDK_CONTROL_MASK,
875 "delete_from_cursor", 2,
876 GTK_TYPE_ENUM, GTK_DELETE_PARAGRAPHS,
879 gtk_binding_entry_add_signal (binding_set, GDK_space, GDK_MOD1_MASK,
880 "delete_from_cursor", 2,
881 GTK_TYPE_ENUM, GTK_DELETE_WHITESPACE,
883 gtk_binding_entry_add_signal (binding_set, GDK_KP_Space, GDK_MOD1_MASK,
884 "delete_from_cursor", 2,
885 GTK_TYPE_ENUM, GTK_DELETE_WHITESPACE,
887 gtk_binding_entry_add_signal (binding_set, GDK_space, GDK_MOD1_MASK,
888 "insert_at_cursor", 1,
889 GTK_TYPE_STRING, " ");
890 gtk_binding_entry_add_signal (binding_set, GDK_KP_Space, GDK_MOD1_MASK,
891 "insert_at_cursor", 1,
892 GTK_TYPE_STRING, " ");
894 gtk_binding_entry_add_signal (binding_set, GDK_backslash, GDK_MOD1_MASK,
895 "delete_from_cursor", 2,
896 GTK_TYPE_ENUM, GTK_DELETE_WHITESPACE,
901 gtk_binding_entry_add_signal (binding_set, GDK_x, GDK_CONTROL_MASK,
904 gtk_binding_entry_add_signal (binding_set, GDK_w, GDK_CONTROL_MASK,
907 gtk_binding_entry_add_signal (binding_set, GDK_c, GDK_CONTROL_MASK,
908 "copy_clipboard", 0);
910 gtk_binding_entry_add_signal (binding_set, GDK_v, GDK_CONTROL_MASK,
911 "paste_clipboard", 0);
913 gtk_binding_entry_add_signal (binding_set, GDK_y, GDK_CONTROL_MASK,
914 "paste_clipboard", 0);
917 gtk_binding_entry_add_signal (binding_set, GDK_Insert, 0,
918 "toggle_overwrite", 0);
919 gtk_binding_entry_add_signal (binding_set, GDK_KP_Insert, 0,
920 "toggle_overwrite", 0);
924 gtk_text_view_init (GtkTextView *text_view)
928 widget = GTK_WIDGET (text_view);
930 GTK_WIDGET_SET_FLAGS (widget, GTK_CAN_FOCUS);
932 /* Set up default style */
933 text_view->wrap_mode = GTK_WRAP_NONE;
934 text_view->pixels_above_lines = 0;
935 text_view->pixels_below_lines = 0;
936 text_view->pixels_inside_wrap = 0;
937 text_view->justify = GTK_JUSTIFY_LEFT;
938 text_view->left_margin = 0;
939 text_view->right_margin = 0;
940 text_view->indent = 0;
941 text_view->tabs = NULL;
942 text_view->editable = TRUE;
944 gtk_drag_dest_set (widget,
946 target_table, G_N_ELEMENTS (target_table),
947 GDK_ACTION_COPY | GDK_ACTION_MOVE);
949 text_view->virtual_cursor_x = -1;
950 text_view->virtual_cursor_y = -1;
952 /* This object is completely private. No external entity can gain a reference
953 * to it; so we create it here and destroy it in finalize ().
955 text_view->im_context = gtk_im_multicontext_new ();
957 g_signal_connect (G_OBJECT (text_view->im_context), "commit",
958 G_CALLBACK (gtk_text_view_commit_handler), text_view);
960 g_signal_connect (G_OBJECT (text_view->im_context), "preedit_changed",
961 G_CALLBACK (gtk_text_view_preedit_changed_handler), text_view);
963 text_view->cursor_visible = TRUE;
965 text_view->text_window = text_window_new (GTK_TEXT_WINDOW_TEXT,
968 text_view->drag_start_x = -1;
969 text_view->drag_start_y = -1;
971 text_view->pending_place_cursor_button = 0;
977 * Creates a new #GtkTextView. If you don't call gtk_text_view_set_buffer()
978 * before using the text view, an empty default buffer will be created
979 * for you. Get the buffer with gtk_text_view_get_buffer(). If you want
980 * to specify your own buffer, consider gtk_text_view_new_with_buffer().
982 * Return value: a new #GtkTextView
985 gtk_text_view_new (void)
987 return GTK_WIDGET (gtk_type_new (gtk_text_view_get_type ()));
991 * gtk_text_view_new_with_buffer:
992 * @buffer: a #GtkTextBuffer
994 * Creates a new #GtkTextView widget displaying the buffer
995 * @buffer. One buffer can be shared among many widgets.
996 * @buffer may be NULL to create a default buffer, in which case
997 * this function is equivalent to gtk_text_view_new(). The
998 * text view adds its own reference count to the buffer; it does not
999 * take over an existing reference.
1001 * Return value: a new #GtkTextView.
1004 gtk_text_view_new_with_buffer (GtkTextBuffer *buffer)
1006 GtkTextView *text_view;
1008 text_view = (GtkTextView*)gtk_text_view_new ();
1010 gtk_text_view_set_buffer (text_view, buffer);
1012 return GTK_WIDGET (text_view);
1016 * gtk_text_view_set_buffer:
1017 * @text_view: a #GtkTextView
1018 * @buffer: a #GtkTextBuffer
1020 * Sets @buffer as the buffer being displayed by @text_view. The previous
1021 * buffer displayed by the text view is unreferenced, and a reference is
1022 * added to @buffer. If you owned a reference to @buffer before passing it
1023 * to this function, you must remove that reference yourself; #GtkTextView
1024 * will not "adopt" it.
1028 gtk_text_view_set_buffer (GtkTextView *text_view,
1029 GtkTextBuffer *buffer)
1031 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1032 g_return_if_fail (buffer == NULL || GTK_IS_TEXT_BUFFER (buffer));
1034 if (text_view->buffer == buffer)
1037 if (text_view->buffer != NULL)
1039 /* Destroy all anchored children */
1043 copy = g_slist_copy (text_view->children);
1045 while (tmp_list != NULL)
1047 GtkTextViewChild *vc = tmp_list->data;
1051 gtk_widget_destroy (vc->widget);
1052 /* vc may now be invalid! */
1055 tmp_list = g_slist_next (tmp_list);
1058 g_slist_free (copy);
1060 g_signal_handlers_disconnect_by_func (G_OBJECT (text_view->buffer),
1061 gtk_text_view_mark_set_handler, text_view);
1062 g_object_unref (G_OBJECT (text_view->buffer));
1063 text_view->dnd_mark = NULL;
1065 if (GTK_WIDGET_REALIZED (text_view))
1066 gtk_text_buffer_remove_selection_clipboard (text_view->buffer,
1067 gtk_clipboard_get (GDK_SELECTION_PRIMARY));
1070 text_view->buffer = buffer;
1076 g_object_ref (G_OBJECT (buffer));
1078 if (text_view->layout)
1079 gtk_text_layout_set_buffer (text_view->layout, buffer);
1081 gtk_text_buffer_get_iter_at_offset (text_view->buffer, &start, 0);
1083 text_view->dnd_mark = gtk_text_buffer_create_mark (text_view->buffer,
1087 text_view->first_para_mark = gtk_text_buffer_create_mark (text_view->buffer,
1091 text_view->first_para_pixels = 0;
1093 g_signal_connect (G_OBJECT (text_view->buffer), "mark_set",
1094 G_CALLBACK (gtk_text_view_mark_set_handler), text_view);
1096 if (GTK_WIDGET_REALIZED (text_view))
1097 gtk_text_buffer_add_selection_clipboard (text_view->buffer,
1098 gtk_clipboard_get (GDK_SELECTION_PRIMARY));
1101 if (GTK_WIDGET_VISIBLE (text_view))
1102 gtk_widget_queue_draw (GTK_WIDGET (text_view));
1104 gtk_text_view_invalidate (text_view);
1107 static GtkTextBuffer*
1108 get_buffer (GtkTextView *text_view)
1110 if (text_view->buffer == NULL)
1113 b = gtk_text_buffer_new (NULL);
1114 gtk_text_view_set_buffer (text_view, b);
1115 g_object_unref (G_OBJECT (b));
1118 return text_view->buffer;
1122 * gtk_text_view_get_buffer:
1123 * @text_view: a #GtkTextView
1125 * Returns the #GtkTextBuffer being displayed by this text view.
1126 * The reference count on the buffer is not incremented; the caller
1127 * of this function won't own a new reference.
1129 * Return value: a #GtkTextBuffer
1132 gtk_text_view_get_buffer (GtkTextView *text_view)
1134 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
1136 return get_buffer (text_view);
1140 * gtk_text_view_get_iter_at_location:
1141 * @text_view: a #GtkTextView
1142 * @iter: a #GtkTextIter
1143 * @x: x position, in buffer coordinates
1144 * @y: y position, in buffer coordinates
1146 * Retrieves the iterator at buffer coordinates @x and @y. Buffer
1147 * coordinates are coordinates for the entire buffer, not just the
1148 * currently-displayed portion. If you have coordinates from an
1149 * event, you have to convert those to buffer coordinates with
1150 * gtk_text_view_window_to_buffer_coords().
1154 gtk_text_view_get_iter_at_location (GtkTextView *text_view,
1159 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1160 g_return_if_fail (iter != NULL);
1161 g_return_if_fail (text_view->layout != NULL);
1163 gtk_text_layout_get_iter_at_pixel (text_view->layout,
1170 * gtk_text_view_get_iter_location:
1171 * @text_view: a #GtkTextView
1172 * @iter: a #GtkTextIter
1173 * @location: bounds of the character at @iter
1175 * Gets a rectangle which roughly contains the character at @iter.
1176 * The rectangle position is in buffer coordinates; use
1177 * gtk_text_view_buffer_to_window_coords() to convert these
1178 * coordinates to coordinates for one of the windows in the text view.
1182 gtk_text_view_get_iter_location (GtkTextView *text_view,
1183 const GtkTextIter *iter,
1184 GdkRectangle *location)
1186 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1187 g_return_if_fail (gtk_text_iter_get_buffer (iter) == get_buffer (text_view));
1189 gtk_text_layout_get_iter_location (text_view->layout, iter, location);
1193 * gtk_text_view_get_line_yrange:
1194 * @text_view: a #GtkTextView
1195 * @iter: a #GtkTextIter
1196 * @y: return location for a y coordinate
1197 * @height: return location for a height
1199 * Gets the y coordinate of the top of the line containing @iter,
1200 * and the height of the line. The coordinate is a buffer coordinate;
1201 * convert to window coordinates with gtk_text_view_buffer_to_window_coords().
1205 gtk_text_view_get_line_yrange (GtkTextView *text_view,
1206 const GtkTextIter *iter,
1210 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1211 g_return_if_fail (gtk_text_iter_get_buffer (iter) == get_buffer (text_view));
1213 gtk_text_layout_get_line_yrange (text_view->layout,
1220 * gtk_text_view_get_line_at_y:
1221 * @text_view: a #GtkTextView
1222 * @target_iter: a #GtkTextIter
1223 * @y: a y coordinate
1224 * @line_top: return location for top coordinate of the line
1226 * Gets the #GtkTextIter at the start of the line containing
1227 * the coordinate @y. @y is in buffer coordinates, convert from
1228 * window coordinates with gtk_text_view_window_to_buffer_coords().
1229 * If non-%NULL, @line_top will be filled with the coordinate of the top
1233 gtk_text_view_get_line_at_y (GtkTextView *text_view,
1234 GtkTextIter *target_iter,
1238 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1240 gtk_text_layout_get_line_at_y (text_view->layout,
1247 set_adjustment_clamped (GtkAdjustment *adj, gdouble val)
1249 DV (g_print (" Setting adj to raw value %g\n", val));
1251 /* We don't really want to clamp to upper; we want to clamp to
1252 upper - page_size which is the highest value the scrollbar
1253 will let us reach. */
1254 if (val > (adj->upper - adj->page_size))
1255 val = adj->upper - adj->page_size;
1257 if (val < adj->lower)
1260 if (val != adj->value)
1262 DV (g_print (" Setting adj to clamped value %g\n", val));
1263 gtk_adjustment_set_value (adj, val);
1271 * gtk_text_view_scroll_to_iter:
1272 * @text_view: a #GtkTextView
1273 * @iter: a #GtkTextIter
1274 * @within_margin: margin as a [0.0,0.5) fraction of screen size
1275 * @use_align: whether to use alignment arguments (if %FALSE, just get the mark onscreen)
1276 * @xalign: horizontal alignment of mark within visible area.
1277 * @yalign: vertical alignment of mark within visible area
1279 * Scrolls @text_view so that @iter is on the screen in the position
1280 * indicated by @xalign and @yalign. An alignment of 0.0 indicates
1281 * left or top, 1.0 indicates right or bottom, 0.5 means center. If @use_align
1282 * is %FALSE, the text scrolls the minimal distance to get the mark onscreen,
1283 * possibly not scrolling at all. The effective screen for purposes
1284 * of this function is reduced by a margin of size @within_margin.
1285 * NOTE: This function uses the currently-computed height of the
1286 * lines in the text buffer. Note that line heights are computed
1287 * in an idle handler; so this function may not have the desired effect
1288 * if it's called before the height computations. To avoid oddness,
1289 * consider using gtk_text_view_scroll_to_mark() which saves a point
1290 * to be scrolled to after line validation.
1292 * Return value: %TRUE if scrolling occurred
1295 gtk_text_view_scroll_to_iter (GtkTextView *text_view,
1297 gdouble within_margin,
1303 GdkRectangle screen;
1308 gboolean retval = FALSE;
1310 gint screen_xoffset, screen_yoffset;
1311 gint current_x_scroll, current_y_scroll;
1313 /* FIXME why don't we do the validate-at-scroll-destination thing
1314 * from flush_scroll in this function? I think it wasn't done before
1315 * because changed_handler was screwed up, but I could be wrong.
1318 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
1319 g_return_val_if_fail (iter != NULL, FALSE);
1320 g_return_val_if_fail (within_margin >= 0.0 && within_margin < 0.5, FALSE);
1321 g_return_val_if_fail (xalign >= 0.0 && xalign <= 1.0, FALSE);
1322 g_return_val_if_fail (yalign >= 0.0 && yalign <= 1.0, FALSE);
1324 widget = GTK_WIDGET (text_view);
1326 DV(g_print(G_STRLOC"\n"));
1328 gtk_text_layout_get_iter_location (text_view->layout,
1332 DV (g_print (" target rect %d,%d %d x %d\n", rect.x, rect.y, rect.width, rect.height));
1334 current_x_scroll = text_view->xoffset;
1335 current_y_scroll = text_view->yoffset;
1337 screen.x = current_x_scroll;
1338 screen.y = current_y_scroll;
1339 screen.width = SCREEN_WIDTH (widget);
1340 screen.height = SCREEN_HEIGHT (widget);
1342 screen_xoffset = screen.width * within_margin;
1343 screen_yoffset = screen.height * within_margin;
1345 screen.x += screen_xoffset;
1346 screen.y += screen_yoffset;
1347 screen.width -= screen_xoffset * 2;
1348 screen.height -= screen_yoffset * 2;
1350 /* paranoia check */
1351 if (screen.width < 1)
1353 if (screen.height < 1)
1356 screen_right = screen.x + screen.width;
1357 screen_bottom = screen.y + screen.height;
1359 /* The alignment affects the point in the target character that we
1360 * choose to align. If we're doing right/bottom alignment, we align
1361 * the right/bottom edge of the character the mark is at; if we're
1362 * doing left/top we align the left/top edge of the character; if
1363 * we're doing center alignment we align the center of the
1367 /* Vertical scroll */
1370 scroll_dest = current_y_scroll;
1374 scroll_dest = rect.y + (rect.height * yalign) - (screen.height * yalign);
1376 /* if scroll_dest < screen.y, we move a negative increment (up),
1377 * else a positive increment (down)
1379 scroll_inc = scroll_dest - screen.y + screen_yoffset;
1383 /* move minimum to get onscreen */
1384 if (rect.y < screen.y)
1386 scroll_dest = rect.y;
1387 scroll_inc = scroll_dest - screen.y - screen_yoffset;
1389 else if ((rect.y + rect.height) > screen_bottom)
1391 scroll_dest = rect.y + rect.height;
1392 scroll_inc = scroll_dest - screen_bottom + screen_yoffset;
1396 if (scroll_inc != 0)
1398 retval = set_adjustment_clamped (get_vadjustment (text_view),
1399 current_y_scroll + scroll_inc);
1401 DV (g_print (" vert increment %d\n", scroll_inc));
1404 /* Horizontal scroll */
1407 scroll_dest = current_x_scroll;
1411 scroll_dest = rect.x + (rect.width * xalign) - (screen.width * xalign);
1413 /* if scroll_dest < screen.y, we move a negative increment (left),
1414 * else a positive increment (right)
1416 scroll_inc = scroll_dest - screen.x + screen_xoffset;
1420 /* move minimum to get onscreen */
1421 if (rect.x < screen.x)
1423 scroll_dest = rect.x;
1424 scroll_inc = scroll_dest - screen.x - screen_xoffset;
1426 else if ((rect.x + rect.width) > screen_right)
1428 scroll_dest = rect.x + rect.width;
1429 scroll_inc = scroll_dest - screen_right + screen_xoffset;
1433 if (scroll_inc != 0)
1435 retval = set_adjustment_clamped (get_hadjustment (text_view),
1436 current_x_scroll + scroll_inc);
1438 DV (g_print (" horiz increment %d\n", scroll_inc));
1442 DV(g_print (">Actually scrolled ("G_STRLOC")\n"));
1444 DV(g_print (">Didn't end up scrolling ("G_STRLOC")\n"));
1450 free_pending_scroll (GtkTextPendingScroll *scroll)
1452 if (!gtk_text_mark_get_deleted (scroll->mark))
1453 gtk_text_buffer_delete_mark (gtk_text_mark_get_buffer (scroll->mark),
1455 g_object_unref (G_OBJECT (scroll->mark));
1460 gtk_text_view_queue_scroll (GtkTextView *text_view,
1462 gdouble within_margin,
1468 GtkTextPendingScroll *scroll;
1470 DV(g_print(G_STRLOC"\n"));
1472 scroll = g_new (GtkTextPendingScroll, 1);
1474 scroll->within_margin = within_margin;
1475 scroll->use_align = use_align;
1476 scroll->xalign = xalign;
1477 scroll->yalign = yalign;
1479 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, mark);
1481 scroll->mark = gtk_text_buffer_create_mark (get_buffer (text_view),
1484 gtk_text_mark_get_left_gravity (mark));
1486 g_object_ref (G_OBJECT (scroll->mark));
1488 if (text_view->pending_scroll)
1489 free_pending_scroll (text_view->pending_scroll);
1491 text_view->pending_scroll = scroll;
1495 gtk_text_view_flush_scroll (GtkTextView *text_view)
1498 GtkTextPendingScroll *scroll;
1501 DV(g_print(G_STRLOC"\n"));
1503 if (text_view->pending_scroll == NULL)
1506 scroll = text_view->pending_scroll;
1508 /* avoid recursion */
1509 text_view->pending_scroll = NULL;
1511 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, scroll->mark);
1513 /* Validate arbitrary area around the scroll destination, so the adjustment
1514 * can meaningfully point into that area
1516 DV(g_print (">Validating scroll destination ("G_STRLOC")\n"));
1517 gtk_text_layout_validate_yrange (text_view->layout, &iter, -300, 300);
1519 DV(g_print (">Done validating scroll destination ("G_STRLOC")\n"));
1521 /* Ensure we have updated width/height */
1522 gtk_text_view_update_adjustments (text_view);
1524 retval = gtk_text_view_scroll_to_iter (text_view,
1526 scroll->within_margin,
1531 free_pending_scroll (scroll);
1537 gtk_text_view_set_adjustment_upper (GtkAdjustment *adj, gdouble upper)
1539 if (upper != adj->upper)
1541 gdouble min = MAX (0.0, upper - adj->page_size);
1542 gboolean value_changed = FALSE;
1546 if (adj->value > min)
1549 value_changed = TRUE;
1552 gtk_signal_emit_by_name (GTK_OBJECT (adj), "changed");
1553 DV(g_print(">Changed adj upper to %g ("G_STRLOC")\n", upper));
1557 DV(g_print(">Changed adj value because upper decreased ("G_STRLOC")\n"));
1558 gtk_signal_emit_by_name (GTK_OBJECT (adj), "value_changed");
1564 gtk_text_view_update_adjustments (GtkTextView *text_view)
1566 gint width = 0, height = 0;
1568 DV(g_print(">Updating adjustments ("G_STRLOC")\n"));
1570 if (text_view->layout)
1571 gtk_text_layout_get_size (text_view->layout, &width, &height);
1573 if (text_view->width != width || text_view->height != height)
1575 text_view->width = width;
1576 text_view->height = height;
1578 gtk_text_view_set_adjustment_upper (get_hadjustment (text_view),
1579 MAX (SCREEN_WIDTH (text_view), width));
1580 gtk_text_view_set_adjustment_upper (get_vadjustment (text_view),
1581 MAX (SCREEN_HEIGHT (text_view), height));
1583 /* hadj/vadj exist since we called get_hadjustment/get_vadjustment above */
1585 /* Set up the step sizes; we'll say that a page is
1586 our allocation minus one step, and a step is
1587 1/10 of our allocation. */
1588 text_view->hadjustment->step_increment =
1589 SCREEN_WIDTH (text_view) / 10.0;
1590 text_view->hadjustment->page_increment =
1591 SCREEN_WIDTH (text_view) * 0.9;
1593 text_view->vadjustment->step_increment =
1594 SCREEN_HEIGHT (text_view) / 10.0;
1595 text_view->vadjustment->page_increment =
1596 SCREEN_HEIGHT (text_view) * 0.9;
1598 gtk_signal_emit_by_name (GTK_OBJECT (get_hadjustment (text_view)), "changed");
1599 gtk_signal_emit_by_name (GTK_OBJECT (get_hadjustment (text_view)), "changed");
1604 gtk_text_view_update_layout_width (GtkTextView *text_view)
1606 DV(g_print(">Updating layout width ("G_STRLOC")\n"));
1608 gtk_text_view_ensure_layout (text_view);
1610 gtk_text_layout_set_screen_width (text_view->layout,
1611 SCREEN_WIDTH (text_view));
1615 gtk_text_view_update_im_spot_location (GtkTextView *text_view)
1618 gint cursor_x_pos, cursor_y_pos;
1620 if (text_view->layout == NULL)
1623 gtk_text_view_get_virtual_cursor_pos (text_view, &cursor_x_pos, &cursor_y_pos);
1625 area.x = cursor_x_pos;
1626 area.y = cursor_y_pos;
1627 area.width = area.height = 0;
1629 gtk_im_context_set_cursor_location (text_view->im_context, &area);
1633 * gtk_text_view_scroll_to_mark:
1634 * @text_view: a #GtkTextView
1635 * @mark: a #GtkTextMark
1636 * @within_margin: margin as a [0.0,0.5) fraction of screen size
1637 * @use_align: whether to use alignment arguments (if %FALSE, just get the mark onscreen)
1638 * @xalign: horizontal alignment of mark within visible area.
1639 * @yalign: vertical alignment of mark within visible area
1641 * Scrolls @text_view so that @mark is on the screen in the position
1642 * indicated by @xalign and @yalign. An alignment of 0.0 indicates
1643 * left or top, 1.0 indicates right or bottom, 0.5 means center. If @use_align
1644 * is %FALSE, the text scrolls the minimal distance to get the mark onscreen,
1645 * possibly not scrolling at all. The effective screen for purposes
1646 * of this function is reduced by a margin of size @within_margin.
1650 gtk_text_view_scroll_to_mark (GtkTextView *text_view,
1652 gdouble within_margin,
1657 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1658 g_return_if_fail (GTK_IS_TEXT_MARK (mark));
1659 g_return_if_fail (within_margin >= 0.0 && within_margin < 0.5);
1660 g_return_if_fail (xalign >= 0.0 && xalign <= 1.0);
1661 g_return_if_fail (yalign >= 0.0 && yalign <= 1.0);
1663 gtk_text_view_queue_scroll (text_view, mark,
1669 /* If no validation is pending, we need to go ahead and force an
1672 if (text_view->layout &&
1673 gtk_text_layout_is_valid (text_view->layout))
1674 gtk_text_view_flush_scroll (text_view);
1678 gtk_text_view_scroll_mark_onscreen (GtkTextView *text_view,
1681 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1682 g_return_if_fail (GTK_IS_TEXT_MARK (mark));
1684 gtk_text_view_scroll_to_mark (text_view, mark, 0.0, FALSE, 0.0, 0.0);
1688 clamp_iter_onscreen (GtkTextView *text_view, GtkTextIter *iter)
1690 GdkRectangle visible_rect;
1691 gtk_text_view_get_visible_rect (text_view, &visible_rect);
1693 return gtk_text_layout_clamp_iter_to_vrange (text_view->layout, iter,
1695 visible_rect.y + visible_rect.height);
1699 * gtk_text_view_move_mark_onscreen:
1700 * @text_view: a #GtkTextView
1701 * @mark: a #GtkTextMark
1703 * Moves a mark within the buffer so that it's
1704 * located within the currently-visible text area.
1706 * Return value: %TRUE if the mark moved (wasn't already onscreen)
1709 gtk_text_view_move_mark_onscreen (GtkTextView *text_view,
1714 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
1715 g_return_val_if_fail (mark != NULL, FALSE);
1717 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, mark);
1719 if (clamp_iter_onscreen (text_view, &iter))
1721 gtk_text_buffer_move_mark (get_buffer (text_view), mark, &iter);
1729 * gtk_text_view_get_visible_rect:
1730 * @text_view: a #GtkTextView
1731 * @visible_rect: rectangle to fill
1733 * Fills @visible_rect with the currently-visible
1734 * region of the buffer, in buffer coordinates. Convert to window coordinates
1735 * with gtk_text_view_buffer_to_window_coords().
1738 gtk_text_view_get_visible_rect (GtkTextView *text_view,
1739 GdkRectangle *visible_rect)
1743 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1745 widget = GTK_WIDGET (text_view);
1749 visible_rect->x = text_view->xoffset;
1750 visible_rect->y = text_view->yoffset;
1751 visible_rect->width = SCREEN_WIDTH (widget);
1752 visible_rect->height = SCREEN_HEIGHT (widget);
1754 DV(g_print(" visible rect: %d,%d %d x %d\n",
1757 visible_rect->width,
1758 visible_rect->height));
1763 * gtk_text_view_set_wrap_mode:
1764 * @text_view: a #GtkTextView
1765 * @wrap_mode: a #GtkWrapMode
1767 * Sets the line wrapping for the view.
1770 gtk_text_view_set_wrap_mode (GtkTextView *text_view,
1771 GtkWrapMode wrap_mode)
1773 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1775 if (text_view->wrap_mode != wrap_mode)
1777 text_view->wrap_mode = wrap_mode;
1779 if (text_view->layout)
1781 text_view->layout->default_style->wrap_mode = wrap_mode;
1782 gtk_text_layout_default_style_changed (text_view->layout);
1786 g_object_notify (G_OBJECT (text_view), "wrap_mode");
1790 * gtk_text_view_get_wrap_mode:
1791 * @text_view: a #GtkTextView
1793 * Gets the line wrapping for the view.
1795 * Return value: the line wrap setting
1798 gtk_text_view_get_wrap_mode (GtkTextView *text_view)
1800 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), GTK_WRAP_NONE);
1802 return text_view->wrap_mode;
1806 * gtk_text_view_set_editable:
1807 * @text_view: a #GtkTextView
1808 * @setting: whether it's editable
1810 * Sets the default editability of the #GtkTextView. You can override
1811 * this default setting with tags in the buffer, using the "editable"
1812 * attribute of tags.
1815 gtk_text_view_set_editable (GtkTextView *text_view,
1818 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1820 if (text_view->editable != setting)
1822 text_view->editable = setting;
1824 if (text_view->layout)
1826 text_view->layout->default_style->editable = text_view->editable;
1827 gtk_text_layout_default_style_changed (text_view->layout);
1831 g_object_notify (G_OBJECT (text_view), "editable");
1835 * gtk_text_view_get_editable:
1836 * @text_view: a #GtkTextView
1838 * Returns the default editability of the #GtkTextView. Tags in the
1839 * buffer may override this setting for some ranges of text.
1841 * Return value: whether text is editable by default
1844 gtk_text_view_get_editable (GtkTextView *text_view)
1846 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
1848 return text_view->editable;
1852 gtk_text_view_set_pixels_above_lines (GtkTextView *text_view,
1853 gint pixels_above_lines)
1855 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1857 if (text_view->pixels_above_lines != pixels_above_lines)
1859 text_view->pixels_above_lines = pixels_above_lines;
1861 if (text_view->layout)
1863 text_view->layout->default_style->pixels_above_lines = pixels_above_lines;
1864 gtk_text_layout_default_style_changed (text_view->layout);
1868 g_object_notify (G_OBJECT (text_view), "pixels_above_lines");
1872 gtk_text_view_get_pixels_above_lines (GtkTextView *text_view)
1874 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
1876 return text_view->pixels_above_lines;
1880 gtk_text_view_set_pixels_below_lines (GtkTextView *text_view,
1881 gint pixels_below_lines)
1883 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1885 if (text_view->pixels_below_lines != pixels_below_lines)
1887 text_view->pixels_below_lines = pixels_below_lines;
1889 if (text_view->layout)
1891 text_view->layout->default_style->pixels_below_lines = pixels_below_lines;
1892 gtk_text_layout_default_style_changed (text_view->layout);
1896 g_object_notify (G_OBJECT (text_view), "pixels_below_lines");
1900 gtk_text_view_get_pixels_below_lines (GtkTextView *text_view)
1902 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
1904 return text_view->pixels_below_lines;
1908 gtk_text_view_set_pixels_inside_wrap (GtkTextView *text_view,
1909 gint pixels_inside_wrap)
1911 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1913 if (text_view->pixels_inside_wrap != pixels_inside_wrap)
1915 text_view->pixels_inside_wrap = pixels_inside_wrap;
1917 if (text_view->layout)
1919 text_view->layout->default_style->pixels_inside_wrap = pixels_inside_wrap;
1920 gtk_text_layout_default_style_changed (text_view->layout);
1923 g_object_notify (G_OBJECT (text_view), "pixels_inside_wrap");
1927 gtk_text_view_get_pixels_inside_wrap (GtkTextView *text_view)
1929 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
1931 return text_view->pixels_inside_wrap;
1935 gtk_text_view_set_justification (GtkTextView *text_view,
1936 GtkJustification justify)
1938 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1940 if (text_view->justify != justify)
1942 text_view->justify = justify;
1944 if (text_view->layout)
1946 text_view->layout->default_style->justification = justify;
1947 gtk_text_layout_default_style_changed (text_view->layout);
1951 g_object_notify (G_OBJECT (text_view), "justification");
1955 gtk_text_view_get_justification (GtkTextView *text_view)
1957 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), GTK_JUSTIFY_LEFT);
1959 return text_view->justify;
1963 gtk_text_view_set_left_margin (GtkTextView *text_view,
1966 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1968 if (text_view->left_margin != left_margin)
1970 text_view->left_margin = left_margin;
1972 if (text_view->layout)
1974 text_view->layout->default_style->left_margin = left_margin;
1975 gtk_text_layout_default_style_changed (text_view->layout);
1979 g_object_notify (G_OBJECT (text_view), "left_margin");
1983 gtk_text_view_get_left_margin (GtkTextView *text_view)
1985 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
1987 return text_view->left_margin;
1991 gtk_text_view_set_right_margin (GtkTextView *text_view,
1994 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
1996 if (text_view->right_margin != right_margin)
1998 text_view->right_margin = right_margin;
2000 if (text_view->layout)
2002 text_view->layout->default_style->right_margin = right_margin;
2003 gtk_text_layout_default_style_changed (text_view->layout);
2007 g_object_notify (G_OBJECT (text_view), "right_margin");
2011 gtk_text_view_get_right_margin (GtkTextView *text_view)
2013 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2015 return text_view->right_margin;
2019 gtk_text_view_set_indent (GtkTextView *text_view,
2022 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2024 if (text_view->indent != indent)
2026 text_view->indent = indent;
2028 if (text_view->layout)
2030 text_view->layout->default_style->indent = indent;
2031 gtk_text_layout_default_style_changed (text_view->layout);
2034 g_object_notify (G_OBJECT (text_view), "indent");
2038 gtk_text_view_get_indent (GtkTextView *text_view)
2040 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
2042 return text_view->indent;
2046 gtk_text_view_set_tabs (GtkTextView *text_view,
2047 PangoTabArray *tabs)
2049 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2051 if (text_view->tabs)
2052 pango_tab_array_free (text_view->tabs);
2054 text_view->tabs = tabs ? pango_tab_array_copy (tabs) : NULL;
2056 if (text_view->layout)
2058 /* some unkosher futzing in internal struct details... */
2059 if (text_view->layout->default_style->tabs)
2060 pango_tab_array_free (text_view->layout->default_style->tabs);
2062 text_view->layout->default_style->tabs =
2063 text_view->tabs ? pango_tab_array_copy (text_view->tabs) : NULL;
2065 gtk_text_layout_default_style_changed (text_view->layout);
2068 g_object_notify (G_OBJECT (text_view), "tabs");
2072 gtk_text_view_get_tabs (GtkTextView *text_view)
2074 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
2076 return text_view->tabs ? pango_tab_array_copy (text_view->tabs) : NULL;
2080 * gtk_text_view_set_cursor_visible:
2081 * @text_view: a #GtkTextView
2082 * @setting: whether to show the insertion cursor
2084 * Toggles whether the insertion point is displayed. A buffer with no editable
2085 * text probably shouldn't have a visible cursor, so you may want to turn
2089 gtk_text_view_set_cursor_visible (GtkTextView *text_view,
2092 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
2094 setting = (setting != FALSE);
2096 if (text_view->cursor_visible != setting)
2098 text_view->cursor_visible = setting;
2100 if (GTK_WIDGET_HAS_FOCUS (text_view))
2102 if (text_view->layout)
2104 gtk_text_layout_set_cursor_visible (text_view->layout, setting);
2105 gtk_text_view_check_cursor_blink (text_view);
2110 g_object_notify (G_OBJECT (text_view), "cursor_visible");
2114 * gtk_text_view_get_cursor_visible:
2115 * @text_view: a #GtkTextView
2117 * Find out whether the cursor is being displayed.
2119 * Return value: whether the insertion mark is visible
2122 gtk_text_view_get_cursor_visible (GtkTextView *text_view)
2124 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
2126 return text_view->cursor_visible;
2131 * gtk_text_view_place_cursor_onscreen:
2132 * @text_view: a #GtkTextView
2134 * Moves the cursor to the currently visible region of the
2135 * buffer, it it isn't there already.
2137 * Return value: TRUE if the cursor had to be moved.
2140 gtk_text_view_place_cursor_onscreen (GtkTextView *text_view)
2144 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
2146 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
2147 gtk_text_buffer_get_mark (get_buffer (text_view),
2150 if (clamp_iter_onscreen (text_view, &insert))
2152 gtk_text_buffer_place_cursor (get_buffer (text_view), &insert);
2160 gtk_text_view_destroy (GtkObject *object)
2162 GtkTextView *text_view;
2163 GtkTextLayout *layout;
2165 text_view = GTK_TEXT_VIEW (object);
2167 layout = text_view->layout;
2169 gtk_text_view_set_buffer (text_view, NULL);
2170 gtk_text_view_destroy_layout (text_view);
2172 (* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
2176 gtk_text_view_finalize (GObject *object)
2178 GtkTextView *text_view;
2180 text_view = GTK_TEXT_VIEW (object);
2182 g_return_if_fail (text_view->buffer == NULL);
2184 gtk_text_view_destroy_layout (text_view);
2185 gtk_text_view_set_buffer (text_view, NULL);
2187 if (text_view->pending_scroll)
2189 free_pending_scroll (text_view->pending_scroll);
2190 text_view->pending_scroll = NULL;
2193 if (text_view->hadjustment)
2194 g_object_unref (G_OBJECT (text_view->hadjustment));
2195 if (text_view->vadjustment)
2196 g_object_unref (G_OBJECT (text_view->vadjustment));
2198 text_window_free (text_view->text_window);
2200 if (text_view->left_window)
2201 text_window_free (text_view->left_window);
2203 if (text_view->top_window)
2204 text_window_free (text_view->top_window);
2206 if (text_view->right_window)
2207 text_window_free (text_view->right_window);
2209 if (text_view->bottom_window)
2210 text_window_free (text_view->bottom_window);
2212 g_object_unref (G_OBJECT (text_view->im_context));
2214 (* G_OBJECT_CLASS (parent_class)->finalize) (object);
2218 gtk_text_view_set_property (GObject *object,
2220 const GValue *value,
2223 GtkTextView *text_view;
2225 text_view = GTK_TEXT_VIEW (object);
2229 case PROP_PIXELS_ABOVE_LINES:
2230 gtk_text_view_set_pixels_above_lines (text_view, g_value_get_int (value));
2233 case PROP_PIXELS_BELOW_LINES:
2234 gtk_text_view_set_pixels_below_lines (text_view, g_value_get_int (value));
2237 case PROP_PIXELS_INSIDE_WRAP:
2238 gtk_text_view_set_pixels_inside_wrap (text_view, g_value_get_int (value));
2242 gtk_text_view_set_editable (text_view, g_value_get_boolean (value));
2245 case PROP_WRAP_MODE:
2246 gtk_text_view_set_wrap_mode (text_view, g_value_get_enum (value));
2249 case PROP_JUSTIFICATION:
2250 gtk_text_view_set_justification (text_view, g_value_get_enum (value));
2253 case PROP_LEFT_MARGIN:
2254 gtk_text_view_set_left_margin (text_view, g_value_get_int (value));
2257 case PROP_RIGHT_MARGIN:
2258 gtk_text_view_set_right_margin (text_view, g_value_get_int (value));
2262 gtk_text_view_set_indent (text_view, g_value_get_int (value));
2266 gtk_text_view_set_tabs (text_view, g_value_get_object (value));
2269 case PROP_CURSOR_VISIBLE:
2270 gtk_text_view_set_cursor_visible (text_view, g_value_get_boolean (value));
2274 g_assert_not_reached ();
2280 gtk_text_view_get_property (GObject *object,
2285 GtkTextView *text_view;
2287 text_view = GTK_TEXT_VIEW (object);
2291 case PROP_PIXELS_ABOVE_LINES:
2292 g_value_set_int (value, text_view->pixels_above_lines);
2295 case PROP_PIXELS_BELOW_LINES:
2296 g_value_set_int (value, text_view->pixels_below_lines);
2299 case PROP_PIXELS_INSIDE_WRAP:
2300 g_value_set_int (value, text_view->pixels_inside_wrap);
2304 g_value_set_boolean (value, text_view->editable);
2307 case PROP_WRAP_MODE:
2308 g_value_set_enum (value, text_view->wrap_mode);
2311 case PROP_JUSTIFICATION:
2312 g_value_set_enum (value, text_view->justify);
2315 case PROP_LEFT_MARGIN:
2316 g_value_set_int (value, text_view->left_margin);
2319 case PROP_RIGHT_MARGIN:
2320 g_value_set_int (value, text_view->right_margin);
2324 g_value_set_int (value, text_view->indent);
2328 g_value_set_object (value, gtk_text_view_get_tabs (text_view));
2331 case PROP_CURSOR_VISIBLE:
2332 g_value_set_boolean (value, text_view->cursor_visible);
2336 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
2342 gtk_text_view_size_request (GtkWidget *widget,
2343 GtkRequisition *requisition)
2345 GtkTextView *text_view;
2347 gint focus_edge_width;
2348 gboolean interior_focus;
2350 text_view = GTK_TEXT_VIEW (widget);
2352 gtk_widget_style_get (widget, "interior_focus", &interior_focus, NULL);
2355 focus_edge_width = 0;
2357 focus_edge_width = 1;
2359 if (text_view->layout)
2361 text_view->text_window->requisition.width = text_view->layout->width;
2362 text_view->text_window->requisition.height = text_view->layout->height;
2366 text_view->text_window->requisition.width = 0;
2367 text_view->text_window->requisition.height = 0;
2370 requisition->width = text_view->text_window->requisition.width + focus_edge_width * 2;
2371 requisition->height = text_view->text_window->requisition.height + focus_edge_width * 2;
2373 if (text_view->left_window)
2374 requisition->width += text_view->left_window->requisition.width;
2376 if (text_view->right_window)
2377 requisition->width += text_view->right_window->requisition.width;
2379 if (text_view->top_window)
2380 requisition->height += text_view->top_window->requisition.height;
2382 if (text_view->bottom_window)
2383 requisition->height += text_view->bottom_window->requisition.height;
2385 tmp_list = text_view->children;
2386 while (tmp_list != NULL)
2388 GtkTextViewChild *child = tmp_list->data;
2392 GtkRequisition child_req;
2393 GtkRequisition old_req;
2395 old_req = child->widget->requisition;
2397 gtk_widget_size_request (child->widget, &child_req);
2399 if (text_view->layout &&
2400 (old_req.width != child_req.width ||
2401 old_req.height != child_req.height))
2402 gtk_text_child_anchor_queue_resize (child->anchor,
2410 tmp_list = g_slist_next (tmp_list);
2415 gtk_text_view_update_child_allocation (GtkTextView *text_view,
2416 GtkTextViewChild *vc)
2420 GtkAllocation allocation;
2422 gtk_text_buffer_get_iter_at_child_anchor (get_buffer (text_view),
2426 gtk_text_layout_get_line_yrange (text_view->layout, &iter,
2429 buffer_y += vc->from_top_of_line;
2431 allocation.x = vc->from_left_of_buffer;
2432 allocation.y = buffer_y;
2433 allocation.width = vc->widget->requisition.width;
2434 allocation.height = vc->widget->requisition.height;
2436 gtk_widget_size_allocate (vc->widget, &allocation);
2440 gtk_text_view_child_allocated (GtkTextLayout *layout,
2446 GtkTextViewChild *vc = NULL;
2447 GtkTextView *text_view = data;
2449 /* x,y is the position of the child from the top of the line, and
2450 * from the left of the buffer. We have to translate that into text
2451 * window coordinates, then size_allocate the child.
2454 vc = g_object_get_data (G_OBJECT (child),
2455 "gtk-text-view-child");
2457 g_assert (vc != NULL);
2459 g_print ("child allocated at %d,%d\n", x, y);
2461 vc->from_left_of_buffer = x;
2462 vc->from_top_of_line = y;
2464 gtk_text_view_update_child_allocation (text_view, vc);
2468 gtk_text_view_validate_children (GtkTextView *text_view)
2472 DV(g_print(G_STRLOC"\n"));
2474 tmp_list = text_view->children;
2475 while (tmp_list != NULL)
2477 GtkTextViewChild *child = tmp_list->data;
2481 /* We need to force-validate the regions containing
2484 GtkTextIter child_loc;
2485 gtk_text_buffer_get_iter_at_child_anchor (get_buffer (text_view),
2489 gtk_text_layout_validate_yrange (text_view->layout,
2498 tmp_list = g_slist_next (tmp_list);
2503 gtk_text_view_size_allocate (GtkWidget *widget,
2504 GtkAllocation *allocation)
2506 GtkTextView *text_view;
2507 GtkTextIter first_para;
2509 GtkAdjustment *vadj;
2510 gboolean yoffset_changed = FALSE;
2512 GdkRectangle text_rect;
2513 GdkRectangle left_rect;
2514 GdkRectangle right_rect;
2515 GdkRectangle top_rect;
2516 GdkRectangle bottom_rect;
2517 gint focus_edge_width;
2518 gboolean interior_focus;
2520 text_view = GTK_TEXT_VIEW (widget);
2522 DV(g_print(G_STRLOC"\n"));
2524 widget->allocation = *allocation;
2526 if (GTK_WIDGET_REALIZED (widget))
2528 gdk_window_move_resize (widget->window,
2529 allocation->x, allocation->y,
2530 allocation->width, allocation->height);
2533 /* distribute width/height among child windows. Ensure all
2534 * windows get at least a 1x1 allocation.
2537 gtk_widget_style_get (widget, "interior_focus", &interior_focus, NULL);
2540 focus_edge_width = 0;
2542 focus_edge_width = 1;
2544 width = allocation->width - focus_edge_width * 2;
2546 if (text_view->left_window)
2547 left_rect.width = text_view->left_window->requisition.width;
2549 left_rect.width = 1;
2551 width -= left_rect.width;
2553 if (text_view->right_window)
2554 right_rect.width = text_view->right_window->requisition.width;
2556 right_rect.width = 1;
2558 width -= right_rect.width;
2560 text_rect.width = MAX (1, width);
2562 top_rect.width = text_rect.width;
2563 bottom_rect.width = text_rect.width;
2566 height = allocation->height - focus_edge_width * 2;
2568 if (text_view->top_window)
2569 top_rect.height = text_view->top_window->requisition.height;
2571 top_rect.height = 1;
2573 height -= top_rect.height;
2575 if (text_view->bottom_window)
2576 bottom_rect.height = text_view->bottom_window->requisition.height;
2578 bottom_rect.height = 1;
2580 height -= bottom_rect.height;
2582 text_rect.height = MAX (1, height);
2584 left_rect.height = text_rect.height;
2585 right_rect.height = text_rect.height;
2588 left_rect.x = focus_edge_width;
2589 top_rect.y = focus_edge_width;
2591 text_rect.x = left_rect.x + left_rect.width;
2592 text_rect.y = top_rect.y + top_rect.height;
2594 left_rect.y = text_rect.y;
2595 right_rect.y = text_rect.y;
2597 top_rect.x = text_rect.x;
2598 bottom_rect.x = text_rect.x;
2600 right_rect.x = text_rect.x + text_rect.width;
2601 bottom_rect.y = text_rect.y + text_rect.height;
2603 text_window_size_allocate (text_view->text_window,
2606 if (text_view->left_window)
2607 text_window_size_allocate (text_view->left_window,
2610 if (text_view->right_window)
2611 text_window_size_allocate (text_view->right_window,
2614 if (text_view->top_window)
2615 text_window_size_allocate (text_view->top_window,
2618 if (text_view->bottom_window)
2619 text_window_size_allocate (text_view->bottom_window,
2622 gtk_text_view_update_layout_width (text_view);
2624 /* This is because validating children ends up size allocating them. */
2625 gtk_text_view_validate_children (text_view);
2627 /* Now adjust the value of the adjustment to keep the cursor at the
2628 * same place in the buffer
2630 gtk_text_view_get_first_para_iter (text_view, &first_para);
2631 gtk_text_layout_get_line_yrange (text_view->layout, &first_para, &y, NULL);
2633 y += text_view->first_para_pixels;
2635 /* Ensure h/v adj exist */
2636 get_hadjustment (text_view);
2637 get_vadjustment (text_view);
2639 vadj = text_view->vadjustment;
2640 if (y > vadj->upper - vadj->page_size)
2641 y = MAX (0, vadj->upper - vadj->page_size);
2643 if (y != text_view->yoffset)
2645 vadj->value = text_view->yoffset = y;
2646 yoffset_changed = TRUE;
2649 text_view->hadjustment->page_size = SCREEN_WIDTH (text_view);
2650 text_view->hadjustment->page_increment = SCREEN_WIDTH (text_view) / 2;
2651 text_view->hadjustment->lower = 0;
2652 text_view->hadjustment->upper = MAX (SCREEN_WIDTH (text_view),
2654 gtk_signal_emit_by_name (GTK_OBJECT (text_view->hadjustment), "changed");
2656 text_view->vadjustment->page_size = SCREEN_HEIGHT (text_view);
2657 text_view->vadjustment->page_increment = SCREEN_HEIGHT (text_view) / 2;
2658 text_view->vadjustment->lower = 0;
2659 text_view->vadjustment->upper = MAX (SCREEN_HEIGHT (text_view),
2661 gtk_signal_emit_by_name (GTK_OBJECT (text_view->vadjustment), "changed");
2663 if (yoffset_changed)
2664 gtk_adjustment_value_changed (vadj);
2666 if (text_view->first_validate_idle != 0)
2668 /* The GTK resize loop processes all the pending exposes right
2669 * after doing the resize stuff, so the idle sizer won't have a
2670 * chance to run. So we do the work here.
2673 g_source_remove (text_view->first_validate_idle);
2674 text_view->first_validate_idle = 0;
2676 if (!gtk_text_view_flush_scroll (text_view))
2677 gtk_text_view_validate_onscreen (text_view);
2682 gtk_text_view_get_first_para_iter (GtkTextView *text_view,
2685 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), iter,
2686 text_view->first_para_mark);
2690 gtk_text_view_validate_onscreen (GtkTextView *text_view)
2692 GtkWidget *widget = GTK_WIDGET (text_view);
2694 DV(g_print(">Validating onscreen ("G_STRLOC")\n"));
2696 if (SCREEN_HEIGHT (widget) > 0)
2698 GtkTextIter first_para;
2700 /* Be sure we've validated the stuff onscreen; if we
2701 * scrolled, these calls won't have any effect, because
2702 * they were called in the recursive validate_onscreen
2704 gtk_text_view_get_first_para_iter (text_view, &first_para);
2706 gtk_text_layout_validate_yrange (text_view->layout,
2709 text_view->first_para_pixels +
2710 SCREEN_HEIGHT (widget));
2713 text_view->onscreen_validated = TRUE;
2715 DV(g_print(">Done validating onscreen, onscreen_validated = TRUE ("G_STRLOC")\n"));
2717 /* This can have the odd side effect of triggering a scroll, which should
2718 * flip "onscreen_validated" back to FALSE, but should also get us
2719 * back into this function to turn it on again.
2721 gtk_text_view_update_adjustments (text_view);
2723 g_assert (text_view->onscreen_validated);
2727 first_validate_callback (gpointer data)
2729 GtkTextView *text_view = data;
2731 GDK_THREADS_ENTER ();
2733 /* Note that some of this code is duplicated at the end of size_allocate,
2734 * keep in sync with that.
2737 DV(g_print(G_STRLOC"\n"));
2739 /* Do this first, which means that if an "invalidate"
2740 * occurs during any of this process, a new first_validate_callback
2741 * will be installed, and we'll start again.
2743 text_view->first_validate_idle = 0;
2745 /* be sure we have up-to-date screen size set on the
2748 gtk_text_view_update_layout_width (text_view);
2750 /* Bail out if we invalidated stuff; scrolling right away will just
2751 * confuse the issue.
2753 if (text_view->first_validate_idle != 0)
2755 DV(g_print(">Width change forced requeue ("G_STRLOC")\n"));
2759 /* scroll to any marks, if that's pending. This can
2760 * jump us to the validation codepath used for scrolling
2761 * onscreen, if so we bail out.
2763 if (!gtk_text_view_flush_scroll (text_view))
2764 gtk_text_view_validate_onscreen (text_view);
2766 DV(g_print(">Leaving first validate idle ("G_STRLOC")\n"));
2768 g_assert (text_view->onscreen_validated);
2772 GDK_THREADS_LEAVE ();
2778 incremental_validate_callback (gpointer data)
2780 GtkTextView *text_view = data;
2781 gboolean result = TRUE;
2783 GDK_THREADS_ENTER ();
2785 DV(g_print(G_STRLOC"\n"));
2787 gtk_text_layout_validate (text_view->layout, 2000);
2789 gtk_text_view_update_adjustments (text_view);
2791 if (gtk_text_layout_is_valid (text_view->layout))
2793 text_view->incremental_validate_idle = 0;
2797 GDK_THREADS_LEAVE ();
2803 gtk_text_view_invalidate (GtkTextView *text_view)
2805 text_view->onscreen_validated = FALSE;
2807 DV(g_print(">Invalidate, onscreen_validated = FALSE ("G_STRLOC")\n"));
2809 if (!text_view->first_validate_idle)
2811 text_view->first_validate_idle = g_idle_add_full (GTK_PRIORITY_RESIZE - 2, first_validate_callback, text_view, NULL);
2812 DV (g_print (G_STRLOC": adding first validate idle %d\n",
2813 text_view->first_validate_idle));
2816 if (!text_view->incremental_validate_idle)
2818 text_view->incremental_validate_idle = g_idle_add_full (GTK_TEXT_VIEW_PRIORITY_VALIDATE, incremental_validate_callback, text_view, NULL);
2819 DV (g_print (G_STRLOC": adding incremental validate idle %d\n",
2820 text_view->incremental_validate_idle));
2825 invalidated_handler (GtkTextLayout *layout,
2828 GtkTextView *text_view;
2830 text_view = GTK_TEXT_VIEW (data);
2832 gtk_text_view_invalidate (text_view);
2836 changed_handler (GtkTextLayout *layout,
2842 GtkTextView *text_view;
2844 GdkRectangle visible_rect;
2845 GdkRectangle redraw_rect;
2847 text_view = GTK_TEXT_VIEW (data);
2848 widget = GTK_WIDGET (data);
2850 DV(g_print(">Lines Validated ("G_STRLOC")\n"));
2852 if (GTK_WIDGET_REALIZED (text_view))
2854 gtk_text_view_get_visible_rect (text_view, &visible_rect);
2856 redraw_rect.x = visible_rect.x;
2857 redraw_rect.width = visible_rect.width;
2858 redraw_rect.y = start_y;
2860 if (old_height == new_height)
2861 redraw_rect.height = old_height;
2863 redraw_rect.height = MAX (0, visible_rect.y + visible_rect.height - start_y);
2865 if (gdk_rectangle_intersect (&redraw_rect, &visible_rect, &redraw_rect))
2867 /* text_window_invalidate_rect() takes buffer coordinates */
2868 text_window_invalidate_rect (text_view->text_window,
2871 DV(g_print(" invalidated rect: %d,%d %d x %d\n",
2875 redraw_rect.height));
2877 if (text_view->left_window)
2878 text_window_invalidate_rect (text_view->left_window,
2880 if (text_view->right_window)
2881 text_window_invalidate_rect (text_view->right_window,
2883 if (text_view->top_window)
2884 text_window_invalidate_rect (text_view->top_window,
2886 if (text_view->bottom_window)
2887 text_window_invalidate_rect (text_view->bottom_window,
2892 if (old_height != new_height)
2894 gboolean yoffset_changed = FALSE;
2896 int new_first_para_top;
2897 int old_first_para_top;
2900 /* If the bottom of the old area was above the top of the
2901 * screen, we need to scroll to keep the current top of the
2902 * screen in place. Remember that first_para_pixels is the
2903 * position of the top of the screen in coordinates relative to
2904 * the first paragraph onscreen.
2906 * In short we are adding the height delta of the portion of the
2907 * changed region above first_para_mark to text_view->yoffset.
2909 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &first,
2910 text_view->first_para_mark);
2912 gtk_text_layout_get_line_yrange (layout, &first, &new_first_para_top, NULL);
2914 old_first_para_top = text_view->yoffset - text_view->first_para_pixels;
2916 if (new_first_para_top != old_first_para_top)
2918 text_view->yoffset += new_first_para_top - old_first_para_top;
2920 get_vadjustment (text_view)->value = text_view->yoffset;
2921 yoffset_changed = TRUE;
2924 if (yoffset_changed)
2925 gtk_adjustment_value_changed (get_vadjustment (text_view));
2927 /* FIXME be smarter about which anchored widgets we update */
2929 tmp_list = text_view->children;
2930 while (tmp_list != NULL)
2932 GtkTextViewChild *child = tmp_list->data;
2935 gtk_text_view_update_child_allocation (text_view, child);
2937 tmp_list = g_slist_next (tmp_list);
2941 gtk_widget_queue_resize (widget);
2945 gtk_text_view_realize_cursor_gc (GtkTextView *text_view)
2947 GdkColor *cursor_color;
2948 GdkColor red = { 0, 0xffff, 0x0000, 0x0000 };
2950 if (text_view->cursor_gc)
2951 gdk_gc_unref (text_view->cursor_gc);
2953 gtk_widget_style_get (GTK_WIDGET (text_view), "cursor_color", &cursor_color, NULL);
2956 cursor_color = &red;
2958 text_view->cursor_gc = gdk_gc_new (text_view->text_window->bin_window);
2959 gdk_gc_set_rgb_fg_color (text_view->cursor_gc, cursor_color);
2963 gtk_text_view_realize (GtkWidget *widget)
2965 GtkTextView *text_view;
2966 GdkWindowAttr attributes;
2967 gint attributes_mask;
2969 text_view = GTK_TEXT_VIEW (widget);
2970 GTK_WIDGET_SET_FLAGS (text_view, GTK_REALIZED);
2972 attributes.window_type = GDK_WINDOW_CHILD;
2973 attributes.x = widget->allocation.x;
2974 attributes.y = widget->allocation.y;
2975 attributes.width = widget->allocation.width;
2976 attributes.height = widget->allocation.height;
2977 attributes.wclass = GDK_INPUT_OUTPUT;
2978 attributes.visual = gtk_widget_get_visual (widget);
2979 attributes.colormap = gtk_widget_get_colormap (widget);
2980 attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK;
2982 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
2984 widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
2985 &attributes, attributes_mask);
2986 gdk_window_set_user_data (widget->window, widget);
2988 /* must come before text_window_realize calls */
2989 widget->style = gtk_style_attach (widget->style, widget->window);
2991 gdk_window_set_background (widget->window,
2992 &widget->style->bg[GTK_WIDGET_STATE (widget)]);
2994 text_window_realize (text_view->text_window, widget->window);
2996 if (text_view->left_window)
2997 text_window_realize (text_view->left_window,
3000 if (text_view->top_window)
3001 text_window_realize (text_view->top_window,
3004 if (text_view->right_window)
3005 text_window_realize (text_view->right_window,
3008 if (text_view->bottom_window)
3009 text_window_realize (text_view->bottom_window,
3012 gtk_text_view_realize_cursor_gc (text_view);
3014 gtk_text_view_ensure_layout (text_view);
3016 if (text_view->buffer)
3017 gtk_text_buffer_add_selection_clipboard (text_view->buffer,
3018 gtk_clipboard_get (GDK_SELECTION_PRIMARY));
3022 gtk_text_view_unrealize (GtkWidget *widget)
3024 GtkTextView *text_view;
3026 text_view = GTK_TEXT_VIEW (widget);
3028 if (text_view->buffer)
3029 gtk_text_buffer_remove_selection_clipboard (text_view->buffer,
3030 gtk_clipboard_get (GDK_SELECTION_PRIMARY));
3032 if (text_view->cursor_gc)
3034 gdk_gc_unref (text_view->cursor_gc);
3035 text_view->cursor_gc = NULL;
3038 if (text_view->first_validate_idle)
3040 g_source_remove (text_view->first_validate_idle);
3041 text_view->first_validate_idle = 0;
3044 if (text_view->incremental_validate_idle)
3046 g_source_remove (text_view->incremental_validate_idle);
3047 text_view->incremental_validate_idle = 0;
3050 if (text_view->popup_menu)
3052 gtk_widget_destroy (text_view->popup_menu);
3053 text_view->popup_menu = NULL;
3056 text_window_unrealize (text_view->text_window);
3058 if (text_view->left_window)
3059 text_window_unrealize (text_view->left_window);
3061 if (text_view->top_window)
3062 text_window_unrealize (text_view->top_window);
3064 if (text_view->right_window)
3065 text_window_unrealize (text_view->right_window);
3067 if (text_view->bottom_window)
3068 text_window_unrealize (text_view->bottom_window);
3070 gtk_text_view_destroy_layout (text_view);
3072 (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
3076 gtk_text_view_style_set (GtkWidget *widget,
3077 GtkStyle *previous_style)
3079 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
3081 if (GTK_WIDGET_REALIZED (widget))
3083 gdk_window_set_background (widget->window,
3084 &widget->style->bg[GTK_WIDGET_STATE (widget)]);
3086 gdk_window_set_background (text_view->text_window->bin_window,
3087 &widget->style->base[GTK_WIDGET_STATE (widget)]);
3089 if (text_view->left_window)
3090 gdk_window_set_background (text_view->left_window->bin_window,
3091 &widget->style->bg[GTK_WIDGET_STATE (widget)]);
3092 if (text_view->right_window)
3093 gdk_window_set_background (text_view->right_window->bin_window,
3094 &widget->style->bg[GTK_WIDGET_STATE (widget)]);
3096 if (text_view->top_window)
3097 gdk_window_set_background (text_view->top_window->bin_window,
3098 &widget->style->bg[GTK_WIDGET_STATE (widget)]);
3100 if (text_view->bottom_window)
3101 gdk_window_set_background (text_view->bottom_window->bin_window,
3102 &widget->style->bg[GTK_WIDGET_STATE (widget)]);
3104 gtk_text_view_realize_cursor_gc (text_view);
3107 if (text_view->layout && previous_style)
3109 gtk_text_view_set_attributes_from_style (text_view,
3110 text_view->layout->default_style,
3112 gtk_text_layout_default_style_changed (text_view->layout);
3117 gtk_text_view_direction_changed (GtkWidget *widget,
3118 GtkTextDirection previous_direction)
3120 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
3122 if (text_view->layout)
3124 text_view->layout->default_style->direction = gtk_widget_get_direction (widget);
3125 gtk_text_layout_default_style_changed (text_view->layout);
3134 get_event_coordinates (GdkEvent *event, gint *x, gint *y)
3137 switch (event->type)
3139 case GDK_MOTION_NOTIFY:
3140 *x = event->motion.x;
3141 *y = event->motion.y;
3145 case GDK_BUTTON_PRESS:
3146 case GDK_2BUTTON_PRESS:
3147 case GDK_3BUTTON_PRESS:
3148 case GDK_BUTTON_RELEASE:
3149 *x = event->button.x;
3150 *y = event->button.y;
3155 case GDK_KEY_RELEASE:
3156 case GDK_ENTER_NOTIFY:
3157 case GDK_LEAVE_NOTIFY:
3158 case GDK_PROPERTY_NOTIFY:
3159 case GDK_SELECTION_CLEAR:
3160 case GDK_SELECTION_REQUEST:
3161 case GDK_SELECTION_NOTIFY:
3162 case GDK_PROXIMITY_IN:
3163 case GDK_PROXIMITY_OUT:
3164 case GDK_DRAG_ENTER:
3165 case GDK_DRAG_LEAVE:
3166 case GDK_DRAG_MOTION:
3167 case GDK_DRAG_STATUS:
3168 case GDK_DROP_START:
3169 case GDK_DROP_FINISHED:
3179 emit_event_on_tags (GtkWidget *widget,
3185 gboolean retval = FALSE;
3186 GtkTextView *text_view;
3188 text_view = GTK_TEXT_VIEW (widget);
3190 tags = gtk_text_iter_get_tags (iter);
3195 GtkTextTag *tag = tmp->data;
3197 if (gtk_text_tag_event (tag, G_OBJECT (widget), event, iter))
3203 tmp = g_slist_next (tmp);
3206 g_slist_free (tags);
3212 gtk_text_view_event (GtkWidget *widget, GdkEvent *event)
3214 GtkTextView *text_view;
3217 text_view = GTK_TEXT_VIEW (widget);
3219 if (text_view->layout == NULL ||
3220 get_buffer (text_view) == NULL)
3223 if (event->any.window != text_view->text_window->bin_window)
3226 if (get_event_coordinates (event, &x, &y))
3230 x += text_view->xoffset;
3231 y += text_view->yoffset;
3233 /* FIXME this is slow and we do it twice per event.
3234 * My favorite solution is to have GtkTextLayout cache
3235 * the last couple lookups.
3237 gtk_text_layout_get_iter_at_pixel (text_view->layout,
3241 return emit_event_on_tags (widget, event, &iter);
3243 else if (event->type == GDK_KEY_PRESS ||
3244 event->type == GDK_KEY_RELEASE)
3246 GtkTextMark *insert;
3249 insert = gtk_text_buffer_get_mark (get_buffer (text_view),
3252 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, insert);
3254 return emit_event_on_tags (widget, event, &iter);
3261 gtk_text_view_key_press_event (GtkWidget *widget, GdkEventKey *event)
3263 gboolean retval = FALSE;
3264 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
3265 GtkTextMark *insert;
3268 if (text_view->layout == NULL ||
3269 get_buffer (text_view) == NULL)
3272 insert = gtk_text_buffer_get_insert (get_buffer (text_view));
3273 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &iter, insert);
3274 if (gtk_text_iter_can_insert (&iter, text_view->editable) &&
3275 gtk_im_context_filter_keypress (text_view->im_context, event))
3277 text_view->need_im_reset = TRUE;
3280 else if (GTK_WIDGET_CLASS (parent_class)->key_press_event &&
3281 GTK_WIDGET_CLASS (parent_class)->key_press_event (widget, event))
3283 else if (event->keyval == GDK_Return ||
3284 event->keyval == GDK_KP_Enter)
3286 gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), "\n", 1,
3287 text_view->editable);
3288 DV(g_print (G_STRLOC": scrolling to mark\n"));
3289 gtk_text_view_scroll_to_mark (text_view,
3290 gtk_text_buffer_get_mark (get_buffer (text_view),
3292 0.0, FALSE, 0.0, 0.0);
3295 /* Pass through Tab as literal tab, unless Control is held down */
3296 else if ((event->keyval == GDK_Tab ||
3297 event->keyval == GDK_KP_Tab ||
3298 event->keyval == GDK_ISO_Left_Tab) &&
3299 !(event->state & GDK_CONTROL_MASK))
3301 gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), "\t", 1,
3302 text_view->editable);
3303 DV(g_print (G_STRLOC": scrolling onscreen\n"));
3304 gtk_text_view_scroll_mark_onscreen (text_view,
3305 gtk_text_buffer_get_mark (get_buffer (text_view),
3312 gtk_text_view_pend_cursor_blink (text_view);
3318 gtk_text_view_key_release_event (GtkWidget *widget, GdkEventKey *event)
3324 gtk_text_view_button_press_event (GtkWidget *widget, GdkEventButton *event)
3326 GtkTextView *text_view;
3328 text_view = GTK_TEXT_VIEW (widget);
3330 text_view->disable_scroll_on_focus = TRUE;
3331 gtk_widget_grab_focus (widget);
3332 text_view->disable_scroll_on_focus = FALSE;
3334 if (event->window != text_view->text_window->bin_window)
3336 /* Remove selection if any. */
3337 gtk_text_view_unselect (text_view);
3343 if (event->button == 3 && (event->state & GDK_CONTROL_MASK) != 0)
3344 _gtk_text_buffer_spew (GTK_TEXT_VIEW (widget)->buffer);
3345 else if (event->button == 3)
3346 gtk_text_layout_spew (GTK_TEXT_VIEW (widget)->layout);
3349 if (event->type == GDK_BUTTON_PRESS)
3351 gtk_text_view_reset_im_context (text_view);
3353 if (event->button == 1)
3355 /* If we're in the selection, start a drag copy/move of the
3356 * selection; otherwise, start creating a new selection.
3359 GtkTextIter start, end;
3361 gtk_text_layout_get_iter_at_pixel (text_view->layout,
3363 event->x + text_view->xoffset,
3364 event->y + text_view->yoffset);
3366 if (gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
3368 gtk_text_iter_in_range (&iter, &start, &end))
3370 text_view->drag_start_x = event->x;
3371 text_view->drag_start_y = event->y;
3372 text_view->pending_place_cursor_button = event->button;
3376 gtk_text_view_start_selection_drag (text_view, &iter, event);
3381 else if (event->button == 2)
3385 gtk_text_layout_get_iter_at_pixel (text_view->layout,
3387 event->x + text_view->xoffset,
3388 event->y + text_view->yoffset);
3390 gtk_text_buffer_paste_clipboard (get_buffer (text_view),
3391 gtk_clipboard_get (GDK_SELECTION_PRIMARY),
3393 text_view->editable);
3396 else if (event->button == 3)
3398 gtk_text_view_do_popup (text_view, event);
3401 else if ((event->type == GDK_2BUTTON_PRESS ||
3402 event->type == GDK_3BUTTON_PRESS) &&
3405 GtkTextIter start, end;
3407 /* End the selection drag, otherwise we'd clear the new
3408 * word/line selection on button release
3410 gtk_text_view_end_selection_drag (text_view, event);
3412 gtk_text_layout_get_iter_at_pixel (text_view->layout,
3414 event->x + text_view->xoffset,
3415 event->y + text_view->yoffset);
3419 if (event->type == GDK_2BUTTON_PRESS)
3421 if (gtk_text_iter_inside_word (&start))
3423 if (!gtk_text_iter_starts_word (&start))
3424 gtk_text_iter_backward_word_start (&start);
3426 if (!gtk_text_iter_ends_word (&end))
3427 gtk_text_iter_forward_word_end (&end);
3430 else if (event->type == GDK_3BUTTON_PRESS)
3432 if (gtk_text_view_starts_display_line (text_view, &start))
3434 /* If on a display line boundary, we assume the user
3435 * clicked off the end of a line and we therefore select
3436 * the line before the boundary.
3438 gtk_text_view_backward_display_line_start (text_view, &start);
3442 /* start isn't on the start of a line, so we move it to the
3443 * start, and move end to the end unless it's already there.
3445 gtk_text_view_backward_display_line_start (text_view, &start);
3447 if (!gtk_text_view_starts_display_line (text_view, &end))
3448 gtk_text_view_forward_display_line_end (text_view, &end);
3452 gtk_text_buffer_move_mark (get_buffer (text_view),
3453 gtk_text_buffer_get_selection_bound (get_buffer (text_view)),
3455 gtk_text_buffer_move_mark (get_buffer (text_view),
3456 gtk_text_buffer_get_insert (get_buffer (text_view)),
3459 text_view->just_selected_element = TRUE;
3468 gtk_text_view_button_release_event (GtkWidget *widget, GdkEventButton *event)
3470 GtkTextView *text_view;
3472 text_view = GTK_TEXT_VIEW (widget);
3474 if (event->window != text_view->text_window->bin_window)
3477 if (event->button == 1)
3479 if (text_view->drag_start_x >= 0)
3481 text_view->drag_start_x = -1;
3482 text_view->drag_start_y = -1;
3485 if (gtk_text_view_end_selection_drag (GTK_TEXT_VIEW (widget), event))
3487 else if (text_view->just_selected_element)
3489 text_view->just_selected_element = FALSE;
3492 else if (text_view->pending_place_cursor_button == event->button)
3496 /* Unselect everything; we clicked inside selection, but
3497 * didn't move by the drag threshold, so just clear selection
3500 gtk_text_layout_get_iter_at_pixel (text_view->layout,
3502 event->x + text_view->xoffset,
3503 event->y + text_view->yoffset);
3505 gtk_text_buffer_place_cursor (get_buffer (text_view), &iter);
3507 text_view->pending_place_cursor_button = 0;
3517 keymap_direction_changed (GdkKeymap *keymap,
3518 GtkTextView *text_view)
3520 gtk_text_view_check_keymap_direction (text_view);
3524 gtk_text_view_focus_in_event (GtkWidget *widget, GdkEventFocus *event)
3526 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
3528 GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);
3529 gtk_widget_queue_draw (widget);
3531 DV(g_print (G_STRLOC": focus_in_event\n"));
3533 if (text_view->cursor_visible && text_view->layout)
3535 gtk_text_layout_set_cursor_visible (text_view->layout, TRUE);
3536 gtk_text_view_check_cursor_blink (text_view);
3539 g_signal_connect (gdk_keymap_get_default (),
3540 "direction_changed",
3541 G_CALLBACK (keymap_direction_changed), text_view);
3542 gtk_text_view_check_keymap_direction (text_view);
3544 text_view->need_im_reset = TRUE;
3545 gtk_im_context_focus_in (GTK_TEXT_VIEW (widget)->im_context);
3551 gtk_text_view_focus_out_event (GtkWidget *widget, GdkEventFocus *event)
3553 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
3555 GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS);
3556 gtk_widget_queue_draw (widget);
3558 DV(g_print (G_STRLOC": focus_out_event\n"));
3560 if (text_view->cursor_visible && text_view->layout)
3562 gtk_text_layout_set_cursor_visible (text_view->layout, FALSE);
3563 gtk_text_view_check_cursor_blink (text_view);
3566 g_signal_handlers_disconnect_by_func (gdk_keymap_get_default (),
3567 keymap_direction_changed,
3570 text_view->need_im_reset = TRUE;
3571 gtk_im_context_focus_out (GTK_TEXT_VIEW (widget)->im_context);
3577 gtk_text_view_motion_event (GtkWidget *widget, GdkEventMotion *event)
3579 GtkTextView *text_view = GTK_TEXT_VIEW (widget);
3581 if (event->window == text_view->text_window->bin_window &&
3582 text_view->drag_start_x >= 0)
3586 gdk_window_get_pointer (text_view->text_window->bin_window,
3589 if (gtk_drag_check_threshold (widget,
3590 text_view->drag_start_x,
3591 text_view->drag_start_y,
3595 gint buffer_x, buffer_y;
3597 gtk_text_view_window_to_buffer_coords (text_view,
3598 GTK_TEXT_WINDOW_TEXT,
3599 text_view->drag_start_x,
3600 text_view->drag_start_y,
3604 gtk_text_layout_get_iter_at_pixel (text_view->layout,
3606 buffer_x, buffer_y);
3608 gtk_text_view_start_selection_dnd (text_view, &iter, event);
3617 gtk_text_view_paint (GtkWidget *widget, GdkRectangle *area)
3619 GtkTextView *text_view;
3621 text_view = GTK_TEXT_VIEW (widget);
3623 g_return_if_fail (text_view->layout != NULL);
3624 g_return_if_fail (text_view->xoffset >= 0);
3625 g_return_if_fail (text_view->yoffset >= 0);
3627 DV (g_print (G_STRLOC": first_validate_idle: %d\n",
3628 text_view->first_validate_idle));
3630 if (!text_view->onscreen_validated)
3633 g_warning (G_STRLOC ": somehow some text lines were modified or scrolling occurred since the last validation of lines on the screen");
3637 printf ("painting %d,%d %d x %d\n",
3639 area->width, area->height);
3642 gtk_text_layout_draw (text_view->layout,
3644 text_view->text_window->bin_window,
3645 text_view->cursor_gc,
3649 area->width, area->height);
3653 gtk_text_view_expose_event (GtkWidget *widget, GdkEventExpose *event)
3657 GdkWindow *win = event->window;
3658 GdkColor color = { 0, 0, 0, 65535 };
3659 GdkGC *gc = gdk_gc_new (win);
3660 gdk_gc_set_rgb_fg_color (gc, &color);
3661 gdk_draw_rectangle (win,
3663 event->area.x, event->area.y,
3664 event->area.width, event->area.height);
3669 if (event->window == gtk_text_view_get_window (GTK_TEXT_VIEW (widget),
3670 GTK_TEXT_WINDOW_TEXT))
3672 DV(g_print (">Exposed ("G_STRLOC")\n"));
3673 gtk_text_view_paint (widget, &event->area);
3676 if (event->window == widget->window)
3677 gtk_text_view_draw_focus (widget);
3683 gtk_text_view_draw_focus (GtkWidget *widget)
3685 gboolean interior_focus;
3687 /* We clear the focus if we are in interior focus mode. */
3688 gtk_widget_style_get (widget, "interior_focus", &interior_focus, NULL);
3690 if (GTK_WIDGET_DRAWABLE (widget))
3692 if (GTK_WIDGET_HAS_FOCUS (widget) && !interior_focus)
3694 gtk_paint_focus (widget->style, widget->window,
3695 NULL, widget, "textview",
3697 widget->allocation.width - 1,
3698 widget->allocation.height - 1);
3702 gdk_window_clear (widget->window);
3708 gtk_text_view_grab_focus (GtkWidget *widget)
3710 GtkTextView *text_view;
3712 text_view = GTK_TEXT_VIEW (widget);
3714 GTK_WIDGET_CLASS (parent_class)->grab_focus (widget);
3716 if (!text_view->disable_scroll_on_focus)
3717 gtk_text_view_scroll_mark_onscreen (text_view,
3718 gtk_text_buffer_get_mark (get_buffer (text_view),
3727 gtk_text_view_add (GtkContainer *container,
3730 g_return_if_fail (GTK_IS_TEXT_VIEW (container));
3731 g_return_if_fail (GTK_IS_WIDGET (child));
3733 /* This is pretty random. */
3734 gtk_text_view_add_child_in_window (GTK_TEXT_VIEW (container),
3736 GTK_TEXT_WINDOW_WIDGET,
3741 gtk_text_view_remove (GtkContainer *container,
3745 GtkTextView *text_view;
3746 GtkTextViewChild *vc;
3748 g_return_if_fail (GTK_IS_TEXT_VIEW (container));
3749 g_return_if_fail (GTK_IS_WIDGET (child));
3750 g_return_if_fail (child->parent == (GtkWidget*) container);
3752 text_view = GTK_TEXT_VIEW (container);
3755 iter = text_view->children;
3757 while (iter != NULL)
3761 if (vc->widget == child)
3764 iter = g_slist_next (iter);
3767 g_assert (iter != NULL); /* be sure we had the child in the list */
3769 text_view->children = g_slist_remove (text_view->children, vc);
3771 gtk_widget_unparent (vc->widget);
3773 text_view_child_free (vc);
3777 gtk_text_view_forall (GtkContainer *container,
3778 gboolean include_internals,
3779 GtkCallback callback,
3780 gpointer callback_data)
3783 GtkTextView *text_view;
3785 g_return_if_fail (GTK_IS_TEXT_VIEW (container));
3786 g_return_if_fail (callback != NULL);
3788 text_view = GTK_TEXT_VIEW (container);
3790 iter = text_view->children;
3792 while (iter != NULL)
3794 GtkTextViewChild *vc = iter->data;
3796 (* callback) (vc->widget, callback_data);
3798 iter = g_slist_next (iter);
3802 #define CURSOR_ON_MULTIPLIER 0.66
3803 #define CURSOR_OFF_MULTIPLIER 0.34
3804 #define CURSOR_PEND_MULTIPLIER 1.0
3807 cursor_blinks (GtkTextView *text_view)
3809 GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (text_view));
3812 #ifdef DEBUG_VALIDATION_AND_SCROLLING
3815 if (gtk_debug_flags & GTK_DEBUG_UPDATES)
3818 g_object_get (G_OBJECT (settings), "gtk-cursor-blink", &blink, NULL);
3823 get_cursor_time (GtkTextView *text_view)
3825 GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (text_view));
3828 g_object_get (G_OBJECT (settings), "gtk-cursor-blink-time", &time, NULL);
3838 blink_cb (gpointer data)
3840 GtkTextView *text_view;
3843 GDK_THREADS_ENTER ();
3845 text_view = GTK_TEXT_VIEW (data);
3847 g_assert (text_view->layout);
3848 g_assert (GTK_WIDGET_HAS_FOCUS (text_view));
3849 g_assert (text_view->cursor_visible);
3851 visible = gtk_text_layout_get_cursor_visible (text_view->layout);
3854 text_view->blink_timeout = gtk_timeout_add (get_cursor_time (text_view) * CURSOR_OFF_MULTIPLIER,
3858 text_view->blink_timeout = gtk_timeout_add (get_cursor_time (text_view) * CURSOR_ON_MULTIPLIER,
3862 gtk_text_layout_set_cursor_visible (text_view->layout,
3865 GDK_THREADS_LEAVE ();
3867 /* Remove ourselves */
3873 gtk_text_view_stop_cursor_blink (GtkTextView *text_view)
3875 if (text_view->blink_timeout)
3877 gtk_timeout_remove (text_view->blink_timeout);
3878 text_view->blink_timeout = 0;
3883 gtk_text_view_check_cursor_blink (GtkTextView *text_view)
3885 if (text_view->layout != NULL &&
3886 text_view->cursor_visible &&
3887 GTK_WIDGET_HAS_FOCUS (text_view))
3889 if (cursor_blinks (text_view))
3891 if (text_view->blink_timeout == 0)
3893 gtk_text_layout_set_cursor_visible (text_view->layout, TRUE);
3895 text_view->blink_timeout = gtk_timeout_add (get_cursor_time (text_view) * CURSOR_OFF_MULTIPLIER,
3901 gtk_text_layout_set_cursor_visible (text_view->layout, TRUE);
3905 gtk_text_view_stop_cursor_blink (text_view);
3910 gtk_text_view_pend_cursor_blink(GtkTextView *text_view)
3912 if (text_view->layout != NULL &&
3913 text_view->cursor_visible &&
3914 GTK_WIDGET_HAS_FOCUS (text_view) &&
3915 cursor_blinks (text_view))
3917 if (text_view->blink_timeout != 0)
3919 gtk_timeout_remove (text_view->blink_timeout);
3920 text_view->blink_timeout = 0;
3923 gtk_text_layout_set_cursor_visible (text_view->layout, TRUE);
3925 text_view->blink_timeout = gtk_timeout_add (get_cursor_time (text_view) * CURSOR_PEND_MULTIPLIER,
3933 * Key binding handlers
3937 gtk_text_view_move_iter_by_lines (GtkTextView *text_view,
3938 GtkTextIter *newplace,
3943 gtk_text_layout_move_iter_to_previous_line (text_view->layout, newplace);
3949 gtk_text_layout_move_iter_to_next_line (text_view->layout, newplace);
3955 gtk_text_view_move_cursor (GtkTextView *text_view,
3956 GtkMovementStep step,
3958 gboolean extend_selection)
3961 GtkTextIter newplace;
3963 gint cursor_x_pos = 0;
3965 gtk_text_view_reset_im_context (text_view);
3967 if (step == GTK_MOVEMENT_PAGES)
3969 gtk_text_view_scroll_pages (text_view, count);
3970 gtk_text_view_pend_cursor_blink (text_view);
3974 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
3975 gtk_text_buffer_get_mark (get_buffer (text_view),
3979 if (step == GTK_MOVEMENT_DISPLAY_LINES)
3980 gtk_text_view_get_virtual_cursor_pos (text_view, &cursor_x_pos, NULL);
3984 case GTK_MOVEMENT_LOGICAL_POSITIONS:
3985 gtk_text_iter_forward_cursor_positions (&newplace, count);
3988 case GTK_MOVEMENT_VISUAL_POSITIONS:
3989 gtk_text_layout_move_iter_visually (text_view->layout,
3993 case GTK_MOVEMENT_WORDS:
3995 gtk_text_iter_backward_word_starts (&newplace, -count);
3997 gtk_text_iter_forward_word_ends (&newplace, count);
4000 case GTK_MOVEMENT_DISPLAY_LINES:
4001 gtk_text_view_move_iter_by_lines (text_view, &newplace, count);
4002 gtk_text_layout_move_iter_to_x (text_view->layout, &newplace, cursor_x_pos);
4005 case GTK_MOVEMENT_DISPLAY_LINE_ENDS:
4007 gtk_text_view_move_iter_by_lines (text_view, &newplace, --count);
4008 else if (count < -1)
4009 gtk_text_view_move_iter_by_lines (text_view, &newplace, ++count);
4012 gtk_text_layout_move_iter_to_line_end (text_view->layout, &newplace, count);
4015 case GTK_MOVEMENT_PARAGRAPHS:
4016 gtk_text_iter_forward_lines (&newplace, count);
4017 gtk_text_iter_set_line_offset (&newplace, 0);
4020 case GTK_MOVEMENT_PARAGRAPH_ENDS:
4022 gtk_text_iter_forward_to_line_end (&newplace);
4024 gtk_text_iter_set_line_offset (&newplace, 0);
4027 case GTK_MOVEMENT_BUFFER_ENDS:
4029 gtk_text_buffer_get_end_iter (get_buffer (text_view), &newplace);
4031 gtk_text_buffer_get_iter_at_offset (get_buffer (text_view), &newplace, 0);
4038 if (!gtk_text_iter_equal (&insert, &newplace))
4040 if (extend_selection)
4041 gtk_text_buffer_move_mark (get_buffer (text_view),
4042 gtk_text_buffer_get_mark (get_buffer (text_view),
4046 gtk_text_buffer_place_cursor (get_buffer (text_view), &newplace);
4048 DV(g_print (G_STRLOC": scrolling onscreen\n"));
4049 gtk_text_view_scroll_mark_onscreen (text_view,
4050 gtk_text_buffer_get_mark (get_buffer (text_view),
4053 if (step == GTK_MOVEMENT_DISPLAY_LINES)
4055 gtk_text_view_set_virtual_cursor_pos (text_view, cursor_x_pos, -1);
4059 gtk_text_view_pend_cursor_blink (text_view);
4063 gtk_text_view_set_anchor (GtkTextView *text_view)
4067 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
4068 gtk_text_buffer_get_mark (get_buffer (text_view),
4071 gtk_text_buffer_create_mark (get_buffer (text_view), "anchor", &insert, TRUE);
4075 gtk_text_view_scroll_pages (GtkTextView *text_view,
4080 gint cursor_x_pos, cursor_y_pos;
4081 GtkTextIter new_insert;
4085 g_return_if_fail (text_view->vadjustment != NULL);
4087 adj = text_view->vadjustment;
4089 /* Validate the region that will be brought into view by the cursor motion
4093 gtk_text_view_get_first_para_iter (text_view, &anchor);
4094 y0 = adj->page_size;
4095 y1 = adj->page_size + count * adj->page_increment;
4099 gtk_text_view_get_first_para_iter (text_view, &anchor);
4100 y0 = count * adj->page_increment + adj->page_size;
4104 gtk_text_layout_validate_yrange (text_view->layout, &anchor, y0, y1);
4105 /* FIXME do we need to update the adjustment ranges here? */
4107 gtk_text_view_get_virtual_cursor_pos (text_view, &cursor_x_pos, &cursor_y_pos);
4109 newval = adj->value;
4111 newval += count * adj->page_increment;
4113 cursor_y_pos += newval - adj->value;
4114 set_adjustment_clamped (adj, newval);
4116 gtk_text_layout_get_iter_at_pixel (text_view->layout, &new_insert, cursor_x_pos, cursor_y_pos);
4117 clamp_iter_onscreen (text_view, &new_insert);
4118 gtk_text_buffer_place_cursor (get_buffer (text_view), &new_insert);
4120 gtk_text_view_set_virtual_cursor_pos (text_view, cursor_x_pos, cursor_y_pos);
4122 /* Adjust to have the cursor _entirely_ onscreen, move_mark_onscreen
4123 * only guarantees 1 pixel onscreen.
4125 DV(g_print (G_STRLOC": scrolling onscreen\n"));
4126 gtk_text_view_scroll_mark_onscreen (text_view,
4127 gtk_text_buffer_get_mark (get_buffer (text_view),
4132 whitespace (gunichar ch, gpointer user_data)
4134 return (ch == ' ' || ch == '\t');
4138 not_whitespace (gunichar ch, gpointer user_data)
4140 return !whitespace (ch, user_data);
4144 find_whitepace_region (const GtkTextIter *center,
4145 GtkTextIter *start, GtkTextIter *end)
4150 if (gtk_text_iter_backward_find_char (start, not_whitespace, NULL, NULL))
4151 gtk_text_iter_forward_char (start); /* we want the first whitespace... */
4152 if (whitespace (gtk_text_iter_get_char (end), NULL))
4153 gtk_text_iter_forward_find_char (end, not_whitespace, NULL, NULL);
4155 return !gtk_text_iter_equal (start, end);
4159 gtk_text_view_insert_at_cursor (GtkTextView *text_view,
4162 gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), str, -1,
4163 text_view->editable);
4167 gtk_text_view_delete_from_cursor (GtkTextView *text_view,
4174 gboolean leave_one = FALSE;
4176 gtk_text_view_reset_im_context (text_view);
4178 if (type == GTK_DELETE_CHARS)
4180 /* Char delete deletes the selection, if one exists */
4181 if (gtk_text_buffer_delete_selection (get_buffer (text_view), TRUE,
4182 text_view->editable))
4186 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
4188 gtk_text_buffer_get_mark (get_buffer (text_view),
4196 case GTK_DELETE_CHARS:
4197 gtk_text_iter_forward_cursor_positions (&end, count);
4200 case GTK_DELETE_WORD_ENDS:
4202 gtk_text_iter_forward_word_ends (&end, count);
4204 gtk_text_iter_backward_word_starts (&start, 0 - count);
4207 case GTK_DELETE_WORDS:
4210 case GTK_DELETE_DISPLAY_LINE_ENDS:
4213 case GTK_DELETE_DISPLAY_LINES:
4216 case GTK_DELETE_PARAGRAPH_ENDS:
4217 /* If we're already at a newline, we need to
4218 * simply delete that newline, instead of
4219 * moving to the next one.
4221 if (gtk_text_iter_ends_line (&end))
4223 gtk_text_iter_forward_line (&end);
4229 if (!gtk_text_iter_forward_to_line_end (&end))
4235 /* FIXME figure out what a negative count means
4239 case GTK_DELETE_PARAGRAPHS:
4242 gtk_text_iter_set_line_offset (&start, 0);
4243 gtk_text_iter_forward_to_line_end (&end);
4245 /* Do the lines beyond the first. */
4248 gtk_text_iter_forward_to_line_end (&end);
4254 /* FIXME negative count? */
4258 case GTK_DELETE_WHITESPACE:
4260 find_whitepace_region (&insert, &start, &end);
4268 if (!gtk_text_iter_equal (&start, &end))
4270 gtk_text_buffer_begin_user_action (get_buffer (text_view));
4272 if (gtk_text_buffer_delete_interactive (get_buffer (text_view), &start, &end,
4273 text_view->editable))
4276 gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view),
4278 text_view->editable);
4281 gtk_text_buffer_end_user_action (get_buffer (text_view));
4283 DV(g_print (G_STRLOC": scrolling onscreen\n"));
4284 gtk_text_view_scroll_mark_onscreen (text_view,
4285 gtk_text_buffer_get_mark (get_buffer (text_view), "insert"));
4290 gtk_text_view_cut_clipboard (GtkTextView *text_view)
4292 gtk_text_buffer_cut_clipboard (get_buffer (text_view),
4293 gtk_clipboard_get (GDK_SELECTION_CLIPBOARD),
4294 text_view->editable);
4295 DV(g_print (G_STRLOC": scrolling onscreen\n"));
4296 gtk_text_view_scroll_mark_onscreen (text_view,
4297 gtk_text_buffer_get_mark (get_buffer (text_view),
4302 gtk_text_view_copy_clipboard (GtkTextView *text_view)
4304 gtk_text_buffer_copy_clipboard (get_buffer (text_view),
4305 gtk_clipboard_get (GDK_SELECTION_CLIPBOARD));
4306 DV(g_print (G_STRLOC": scrolling onscreen\n"));
4307 gtk_text_view_scroll_mark_onscreen (text_view,
4308 gtk_text_buffer_get_mark (get_buffer (text_view),
4313 gtk_text_view_paste_clipboard (GtkTextView *text_view)
4315 gtk_text_buffer_paste_clipboard (get_buffer (text_view),
4316 gtk_clipboard_get (GDK_SELECTION_CLIPBOARD),
4318 text_view->editable);
4319 DV(g_print (G_STRLOC": scrolling onscreen\n"));
4320 gtk_text_view_scroll_mark_onscreen (text_view,
4321 gtk_text_buffer_get_mark (get_buffer (text_view),
4326 gtk_text_view_toggle_overwrite (GtkTextView *text_view)
4328 text_view->overwrite_mode = !text_view->overwrite_mode;
4336 gtk_text_view_unselect (GtkTextView *text_view)
4340 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
4342 gtk_text_buffer_get_mark (get_buffer (text_view),
4345 gtk_text_buffer_move_mark (get_buffer (text_view),
4346 gtk_text_buffer_get_mark (get_buffer (text_view),
4352 move_mark_to_pointer_and_scroll (GtkTextView *text_view,
4353 const gchar *mark_name)
4356 GdkModifierType state;
4357 GtkTextIter newplace;
4359 /* DV(g_print (G_STRLOC": begin\n")); */
4361 gdk_window_get_pointer (text_view->text_window->bin_window,
4364 /* DV(g_print (G_STRLOC": get iter at pixel\n"); */
4365 gtk_text_layout_get_iter_at_pixel (text_view->layout,
4367 x + text_view->xoffset,
4368 y + text_view->yoffset);
4372 gtk_text_buffer_get_mark (get_buffer (text_view), mark_name);
4374 DV(g_print (G_STRLOC": move mark\n"));
4375 gtk_text_buffer_move_mark (get_buffer (text_view),
4379 DV(g_print (G_STRLOC": scrolling onscreen\n"));
4380 gtk_text_view_scroll_mark_onscreen (text_view, mark);
4385 selection_scan_timeout (gpointer data)
4387 GtkTextView *text_view;
4389 GDK_THREADS_ENTER ();
4391 text_view = GTK_TEXT_VIEW (data);
4393 DV(g_print (G_STRLOC": calling move_mark_to_pointer_and_scroll\n"));
4394 move_mark_to_pointer_and_scroll (text_view, "insert");
4396 GDK_THREADS_LEAVE ();
4398 return TRUE; /* remain installed. */
4401 #define DND_SCROLL_MARGIN 0.20
4404 drag_scan_timeout (gpointer data)
4406 GtkTextView *text_view;
4408 GdkModifierType state;
4409 GtkTextIter newplace;
4411 GDK_THREADS_ENTER ();
4413 text_view = GTK_TEXT_VIEW (data);
4415 gdk_window_get_pointer (text_view->text_window->bin_window,
4418 gtk_text_layout_get_iter_at_pixel (text_view->layout,
4420 x + text_view->xoffset,
4421 y + text_view->yoffset);
4423 gtk_text_buffer_move_mark (get_buffer (text_view),
4424 text_view->dnd_mark,
4427 DV(g_print (G_STRLOC": scrolling onscreen\n"));
4428 gtk_text_view_scroll_to_mark (text_view,
4429 text_view->dnd_mark,
4430 DND_SCROLL_MARGIN, FALSE, 0.0, 0.0);
4432 GDK_THREADS_LEAVE ();
4438 selection_motion_event_handler (GtkTextView *text_view, GdkEventMotion *event, gpointer data)
4440 DV(g_print (G_STRLOC": calling move_mark_to_pointer_and_scroll\n"));
4441 move_mark_to_pointer_and_scroll (text_view, "insert");
4443 /* If we had to scroll offscreen, insert a timeout to do so
4444 * again. Note that in the timeout, even if the mouse doesn't
4445 * move, due to this scroll xoffset/yoffset will have changed
4446 * and we'll need to scroll again.
4448 if (text_view->scroll_timeout != 0) /* reset on every motion event */
4449 gtk_timeout_remove (text_view->scroll_timeout);
4451 text_view->scroll_timeout =
4452 gtk_timeout_add (50, selection_scan_timeout, text_view);
4458 gtk_text_view_start_selection_drag (GtkTextView *text_view,
4459 const GtkTextIter *iter,
4460 GdkEventButton *button)
4462 GtkTextIter newplace;
4464 g_return_if_fail (text_view->selection_drag_handler == 0);
4466 gtk_grab_add (GTK_WIDGET (text_view));
4470 gtk_text_buffer_place_cursor (get_buffer (text_view), &newplace);
4472 text_view->selection_drag_handler = gtk_signal_connect (GTK_OBJECT (text_view),
4473 "motion_notify_event",
4474 GTK_SIGNAL_FUNC (selection_motion_event_handler),
4478 /* returns whether we were really dragging */
4480 gtk_text_view_end_selection_drag (GtkTextView *text_view, GdkEventButton *event)
4482 if (text_view->selection_drag_handler == 0)
4485 gtk_signal_disconnect (GTK_OBJECT (text_view), text_view->selection_drag_handler);
4486 text_view->selection_drag_handler = 0;
4488 if (text_view->scroll_timeout != 0)
4490 gtk_timeout_remove (text_view->scroll_timeout);
4491 text_view->scroll_timeout = 0;
4494 /* one last update to current position */
4495 DV(g_print (G_STRLOC": calling move_mark_to_pointer_and_scroll\n"));
4496 move_mark_to_pointer_and_scroll (text_view, "insert");
4498 gtk_grab_remove (GTK_WIDGET (text_view));
4508 gtk_text_view_set_attributes_from_style (GtkTextView *text_view,
4509 GtkTextAttributes *values,
4512 values->appearance.bg_color = style->base[GTK_STATE_NORMAL];
4513 values->appearance.fg_color = style->text[GTK_STATE_NORMAL];
4516 pango_font_description_free (values->font);
4518 values->font = pango_font_description_copy (style->font_desc);
4522 gtk_text_view_check_keymap_direction (GtkTextView *text_view)
4524 if (text_view->layout)
4526 gboolean split_cursor;
4527 GtkTextDirection new_dir;
4528 GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (text_view));
4530 g_object_get (G_OBJECT (settings),
4531 "gtk-split-cursor", &split_cursor,
4534 new_dir = GTK_TEXT_DIR_NONE;
4536 new_dir = (gdk_keymap_get_direction (gdk_keymap_get_default ()) == PANGO_DIRECTION_LTR) ?
4537 GTK_TEXT_DIR_LTR : GTK_TEXT_DIR_RTL;
4539 if (text_view->layout->cursor_direction != new_dir)
4540 gtk_text_layout_set_cursor_direction (text_view->layout, new_dir);
4545 gtk_text_view_ensure_layout (GtkTextView *text_view)
4549 widget = GTK_WIDGET (text_view);
4551 if (text_view->layout == NULL)
4553 GtkTextAttributes *style;
4554 PangoContext *ltr_context, *rtl_context;
4557 DV(g_print(G_STRLOC"\n"));
4559 text_view->layout = gtk_text_layout_new ();
4561 g_signal_connect (G_OBJECT (text_view->layout),
4563 G_CALLBACK (invalidated_handler),
4566 g_signal_connect (G_OBJECT (text_view->layout),
4568 G_CALLBACK (changed_handler),
4571 g_signal_connect (G_OBJECT (text_view->layout),
4573 G_CALLBACK (gtk_text_view_child_allocated),
4576 if (get_buffer (text_view))
4577 gtk_text_layout_set_buffer (text_view->layout, get_buffer (text_view));
4579 if ((GTK_WIDGET_HAS_FOCUS (text_view) && text_view->cursor_visible))
4580 gtk_text_view_pend_cursor_blink (text_view);
4582 gtk_text_layout_set_cursor_visible (text_view->layout, FALSE);
4584 ltr_context = gtk_widget_create_pango_context (GTK_WIDGET (text_view));
4585 pango_context_set_base_dir (ltr_context, PANGO_DIRECTION_LTR);
4586 rtl_context = gtk_widget_create_pango_context (GTK_WIDGET (text_view));
4587 pango_context_set_base_dir (rtl_context, PANGO_DIRECTION_RTL);
4589 gtk_text_layout_set_contexts (text_view->layout, ltr_context, rtl_context);
4591 g_object_unref (G_OBJECT (ltr_context));
4592 g_object_unref (G_OBJECT (rtl_context));
4594 gtk_text_view_check_keymap_direction (text_view);
4596 style = gtk_text_attributes_new ();
4598 gtk_widget_ensure_style (widget);
4599 gtk_text_view_set_attributes_from_style (text_view,
4600 style, widget->style);
4602 style->pixels_above_lines = text_view->pixels_above_lines;
4603 style->pixels_below_lines = text_view->pixels_below_lines;
4604 style->pixels_inside_wrap = text_view->pixels_inside_wrap;
4605 style->left_margin = text_view->left_margin;
4606 style->right_margin = text_view->right_margin;
4607 style->indent = text_view->indent;
4608 style->tabs = text_view->tabs ? pango_tab_array_copy (text_view->tabs) : NULL;
4610 style->wrap_mode = text_view->wrap_mode;
4611 style->justification = text_view->justify;
4612 style->direction = gtk_widget_get_direction (GTK_WIDGET (text_view));
4614 gtk_text_layout_set_default_style (text_view->layout, style);
4616 gtk_text_attributes_unref (style);
4618 /* Set layout for all anchored children */
4620 tmp_list = text_view->children;
4621 while (tmp_list != NULL)
4623 GtkTextViewChild *vc = tmp_list->data;
4627 gtk_text_anchored_child_set_layout (vc->widget,
4629 /* vc may now be invalid! */
4632 tmp_list = g_slist_next (tmp_list);
4638 * gtk_text_view_get_default_attributes:
4639 * @text_view: a #GtkTextView
4641 * Obtains a copy of the default text attributes. These are the
4642 * attributes used for text unless a tag overrides them.
4643 * You'd typically pass the default attributes in to
4644 * gtk_text_tag_get_attributes() in order to get the
4645 * attributes in effect at a given text position.
4647 * The return value is a copy owned by the caller of this function,
4648 * and should be freed.
4650 * Return value: a new #GtkTextAttributes
4653 gtk_text_view_get_default_attributes (GtkTextView *text_view)
4655 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
4657 gtk_text_view_ensure_layout (text_view);
4659 return gtk_text_attributes_copy (text_view->layout->default_style);
4663 gtk_text_view_destroy_layout (GtkTextView *text_view)
4665 if (text_view->layout)
4669 if (text_view->first_validate_idle)
4671 g_source_remove (text_view->first_validate_idle);
4672 text_view->first_validate_idle = 0;
4675 if (text_view->incremental_validate_idle)
4677 g_source_remove (text_view->incremental_validate_idle);
4678 text_view->incremental_validate_idle = 0;
4681 /* Remove layout from all anchored children */
4682 tmp_list = text_view->children;
4683 while (tmp_list != NULL)
4685 GtkTextViewChild *vc = tmp_list->data;
4689 gtk_text_anchored_child_set_layout (vc->widget, NULL);
4690 /* vc may now be invalid! */
4693 tmp_list = g_slist_next (tmp_list);
4696 gtk_text_view_stop_cursor_blink (text_view);
4697 gtk_text_view_end_selection_drag (text_view, NULL);
4699 g_signal_handlers_disconnect_by_func (G_OBJECT (text_view->layout),
4700 invalidated_handler, text_view);
4701 g_signal_handlers_disconnect_by_func (G_OBJECT (text_view->layout),
4702 changed_handler, text_view);
4703 g_object_unref (G_OBJECT (text_view->layout));
4704 text_view->layout = NULL;
4709 gtk_text_view_reset_im_context (GtkTextView *text_view)
4711 if (text_view->need_im_reset)
4713 text_view->need_im_reset = FALSE;
4714 gtk_im_context_reset (text_view->im_context);
4715 gtk_text_view_update_im_spot_location (text_view);
4724 gtk_text_view_start_selection_dnd (GtkTextView *text_view,
4725 const GtkTextIter *iter,
4726 GdkEventMotion *event)
4728 GdkDragContext *context;
4729 GtkTargetList *target_list;
4731 text_view->drag_start_x = -1;
4732 text_view->drag_start_y = -1;
4733 text_view->pending_place_cursor_button = 0;
4735 target_list = gtk_target_list_new (target_table,
4736 G_N_ELEMENTS (target_table));
4738 context = gtk_drag_begin (GTK_WIDGET (text_view), target_list,
4739 GDK_ACTION_COPY | GDK_ACTION_MOVE,
4740 1, (GdkEvent*)event);
4742 gtk_target_list_unref (target_list);
4744 gtk_drag_set_icon_default (context);
4748 gtk_text_view_drag_begin (GtkWidget *widget,
4749 GdkDragContext *context)
4755 gtk_text_view_drag_end (GtkWidget *widget,
4756 GdkDragContext *context)
4758 GtkTextView *text_view;
4760 text_view = GTK_TEXT_VIEW (widget);
4764 gtk_text_view_drag_data_get (GtkWidget *widget,
4765 GdkDragContext *context,
4766 GtkSelectionData *selection_data,
4770 GtkTextView *text_view;
4772 text_view = GTK_TEXT_VIEW (widget);
4774 if (selection_data->target == gdk_atom_intern ("GTK_TEXT_BUFFER_CONTENTS", FALSE))
4776 GtkTextBuffer *buffer = gtk_text_view_get_buffer (text_view);
4778 gtk_selection_data_set (selection_data,
4779 gdk_atom_intern ("GTK_TEXT_BUFFER_CONTENTS", FALSE),
4792 if (gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
4795 /* Extract the selected text */
4796 str = gtk_text_iter_get_visible_text (&start, &end);
4801 gtk_selection_data_set_text (selection_data, str);
4808 gtk_text_view_drag_data_delete (GtkWidget *widget,
4809 GdkDragContext *context)
4811 GtkTextView *text_view;
4813 text_view = GTK_TEXT_VIEW (widget);
4815 gtk_text_buffer_delete_selection (GTK_TEXT_VIEW (widget)->buffer,
4816 TRUE, GTK_TEXT_VIEW (widget)->editable);
4820 gtk_text_view_drag_leave (GtkWidget *widget,
4821 GdkDragContext *context,
4824 GtkTextView *text_view;
4826 text_view = GTK_TEXT_VIEW (widget);
4828 gtk_text_mark_set_visible (text_view->dnd_mark, FALSE);
4830 if (text_view->scroll_timeout != 0)
4831 gtk_timeout_remove (text_view->scroll_timeout);
4833 text_view->scroll_timeout = 0;
4837 gtk_text_view_drag_motion (GtkWidget *widget,
4838 GdkDragContext *context,
4843 GtkTextIter newplace;
4844 GtkTextView *text_view;
4847 GdkRectangle target_rect;
4849 GdkDragAction suggested_action = 0;
4851 text_view = GTK_TEXT_VIEW (widget);
4853 target_rect = text_view->text_window->allocation;
4855 if (x < target_rect.x ||
4856 y < target_rect.y ||
4857 x > (target_rect.x + target_rect.width) ||
4858 y > (target_rect.y + target_rect.height))
4859 return FALSE; /* outside the text window, allow parent widgets to handle event */
4861 gtk_text_view_window_to_buffer_coords (text_view,
4862 GTK_TEXT_WINDOW_WIDGET,
4866 gtk_text_layout_get_iter_at_pixel (text_view->layout,
4870 if (gtk_drag_dest_find_target (widget, context,
4871 gtk_drag_dest_get_target_list (widget)) == GDK_NONE)
4873 /* can't accept any of the offered targets */
4875 else if (gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
4877 gtk_text_iter_in_range (&newplace, &start, &end))
4879 /* We're inside the selection. */
4883 if (gtk_text_iter_can_insert (&newplace, text_view->editable))
4885 GtkWidget *source_widget;
4887 suggested_action = context->suggested_action;
4889 source_widget = gtk_drag_get_source_widget (context);
4891 if (source_widget == widget)
4893 /* Default to MOVE, unless the user has
4894 * pressed ctrl or alt to affect available actions
4896 if ((context->actions & GDK_ACTION_MOVE) != 0)
4897 suggested_action = GDK_ACTION_MOVE;
4902 /* Can't drop here. */
4906 if (suggested_action != 0)
4908 gtk_text_mark_set_visible (text_view->dnd_mark,
4909 text_view->cursor_visible);
4911 gdk_drag_status (context, suggested_action, time);
4915 gdk_drag_status (context, 0, time);
4916 gtk_text_mark_set_visible (text_view->dnd_mark, FALSE);
4919 gtk_text_buffer_move_mark (get_buffer (text_view),
4920 text_view->dnd_mark,
4923 DV(g_print (G_STRLOC": scrolling to mark\n"));
4924 gtk_text_view_scroll_to_mark (text_view,
4925 text_view->dnd_mark,
4926 DND_SCROLL_MARGIN, FALSE, 0.0, 0.0);
4928 if (text_view->scroll_timeout != 0) /* reset on every motion event */
4929 gtk_timeout_remove (text_view->scroll_timeout);
4931 text_view->scroll_timeout =
4932 gtk_timeout_add (50, drag_scan_timeout, text_view);
4934 /* TRUE return means don't propagate the drag motion to parent
4935 * widgets that may also be drop sites.
4941 gtk_text_view_drag_drop (GtkWidget *widget,
4942 GdkDragContext *context,
4947 GtkTextView *text_view;
4948 GtkTextIter drop_point;
4949 GdkAtom target = GDK_NONE;
4951 text_view = GTK_TEXT_VIEW (widget);
4953 if (text_view->scroll_timeout != 0)
4954 gtk_timeout_remove (text_view->scroll_timeout);
4956 text_view->scroll_timeout = 0;
4958 gtk_text_mark_set_visible (text_view->dnd_mark, FALSE);
4960 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
4962 text_view->dnd_mark);
4964 if (gtk_text_iter_can_insert (&drop_point, text_view->editable))
4965 target = gtk_drag_dest_find_target (widget, context, NULL);
4967 if (target != GDK_NONE)
4968 gtk_drag_get_data (widget, context, target, time);
4970 gtk_drag_finish (context, FALSE, FALSE, time);
4976 insert_text_data (GtkTextView *text_view,
4977 GtkTextIter *drop_point,
4978 GtkSelectionData *selection_data)
4982 str = gtk_selection_data_get_text (selection_data);
4986 gtk_text_buffer_insert_interactive (get_buffer (text_view),
4987 drop_point, str, -1,
4988 text_view->editable);
4994 gtk_text_view_drag_data_received (GtkWidget *widget,
4995 GdkDragContext *context,
4998 GtkSelectionData *selection_data,
5002 GtkTextIter drop_point;
5003 GtkTextView *text_view;
5004 gboolean success = FALSE;
5006 text_view = GTK_TEXT_VIEW (widget);
5008 if (!text_view->dnd_mark)
5011 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
5013 text_view->dnd_mark);
5015 if (!gtk_text_iter_can_insert (&drop_point, text_view->editable))
5018 if (selection_data->target == gdk_atom_intern ("GTK_TEXT_BUFFER_CONTENTS", FALSE))
5020 GtkTextBuffer *src_buffer = NULL;
5021 GtkTextIter start, end;
5022 gboolean copy_tags = TRUE;
5024 if (selection_data->length != sizeof (src_buffer))
5027 memcpy (&src_buffer, selection_data->data, sizeof (src_buffer));
5029 if (src_buffer == NULL)
5032 g_return_if_fail (GTK_IS_TEXT_BUFFER (src_buffer));
5034 if (gtk_text_buffer_get_tag_table (src_buffer) !=
5035 gtk_text_buffer_get_tag_table (get_buffer (text_view)))
5038 if (gtk_text_buffer_get_selection_bounds (src_buffer,
5043 gtk_text_buffer_insert_range_interactive (get_buffer (text_view),
5047 text_view->editable);
5052 str = gtk_text_iter_get_visible_text (&start, &end);
5053 gtk_text_buffer_insert_interactive (get_buffer (text_view),
5054 &drop_point, str, -1,
5055 text_view->editable);
5061 insert_text_data (text_view, &drop_point, selection_data);
5066 gtk_drag_finish (context, success,
5067 success && context->action == GDK_ACTION_MOVE,
5071 static GtkAdjustment*
5072 get_hadjustment (GtkTextView *text_view)
5074 if (text_view->hadjustment == NULL)
5075 gtk_text_view_set_scroll_adjustments (text_view,
5076 NULL, /* forces creation */
5077 text_view->vadjustment);
5079 return text_view->hadjustment;
5082 static GtkAdjustment*
5083 get_vadjustment (GtkTextView *text_view)
5085 if (text_view->vadjustment == NULL)
5086 gtk_text_view_set_scroll_adjustments (text_view,
5087 text_view->hadjustment,
5088 NULL); /* forces creation */
5089 return text_view->vadjustment;
5094 gtk_text_view_set_scroll_adjustments (GtkTextView *text_view,
5095 GtkAdjustment *hadj,
5096 GtkAdjustment *vadj)
5098 gboolean need_adjust = FALSE;
5100 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
5103 g_return_if_fail (GTK_IS_ADJUSTMENT (hadj));
5105 hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
5107 g_return_if_fail (GTK_IS_ADJUSTMENT (vadj));
5109 vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
5111 if (text_view->hadjustment && (text_view->hadjustment != hadj))
5113 gtk_signal_disconnect_by_data (GTK_OBJECT (text_view->hadjustment), text_view);
5114 g_object_unref (G_OBJECT (text_view->hadjustment));
5117 if (text_view->vadjustment && (text_view->vadjustment != vadj))
5119 gtk_signal_disconnect_by_data (GTK_OBJECT (text_view->vadjustment), text_view);
5120 g_object_unref (G_OBJECT (text_view->vadjustment));
5123 if (text_view->hadjustment != hadj)
5125 text_view->hadjustment = hadj;
5126 g_object_ref (G_OBJECT (text_view->hadjustment));
5127 gtk_object_sink (GTK_OBJECT (text_view->hadjustment));
5129 gtk_signal_connect (GTK_OBJECT (text_view->hadjustment), "value_changed",
5130 (GtkSignalFunc) gtk_text_view_value_changed,
5135 if (text_view->vadjustment != vadj)
5137 text_view->vadjustment = vadj;
5138 g_object_ref (G_OBJECT (text_view->vadjustment));
5139 gtk_object_sink (GTK_OBJECT (text_view->vadjustment));
5141 gtk_signal_connect (GTK_OBJECT (text_view->vadjustment), "value_changed",
5142 (GtkSignalFunc) gtk_text_view_value_changed,
5148 gtk_text_view_value_changed (NULL, text_view);
5152 gtk_text_view_value_changed (GtkAdjustment *adj,
5153 GtkTextView *text_view)
5160 /* Note that we oddly call this function with adj == NULL
5164 text_view->onscreen_validated = FALSE;
5166 DV(g_print(">Scroll offset changed %s/%g, onscreen_validated = FALSE ("G_STRLOC")\n",
5167 adj == text_view->hadjustment ? "hadj" : adj == text_view->vadjustment ? "vadj" : "none",
5168 adj ? adj->value : 0.0));
5170 if (adj == text_view->hadjustment)
5172 dx = text_view->xoffset - (gint)adj->value;
5173 text_view->xoffset = adj->value;
5175 else if (adj == text_view->vadjustment)
5177 dy = text_view->yoffset - (gint)adj->value;
5178 text_view->yoffset = adj->value;
5180 if (text_view->layout)
5182 gtk_text_layout_get_line_at_y (text_view->layout, &iter, adj->value, &line_top);
5184 gtk_text_buffer_move_mark (get_buffer (text_view), text_view->first_para_mark, &iter);
5186 text_view->first_para_pixels = adj->value - line_top;
5190 if (GTK_WIDGET_REALIZED (text_view) && (dx != 0 || dy != 0))
5194 if (text_view->left_window)
5195 text_window_scroll (text_view->left_window, 0, dy);
5196 if (text_view->right_window)
5197 text_window_scroll (text_view->right_window, 0, dy);
5202 if (text_view->top_window)
5203 text_window_scroll (text_view->top_window, dx, 0);
5204 if (text_view->bottom_window)
5205 text_window_scroll (text_view->bottom_window, dx, 0);
5208 /* It looks nicer to scroll the main area last, because
5209 * it takes a while, and making the side areas update
5210 * afterward emphasizes the slowness of scrolling the
5213 text_window_scroll (text_view->text_window, dx, dy);
5216 /* This could result in invalidation, which would install the
5217 * first_validate_idle, which would validate onscreen;
5218 * but we're going to go ahead and validate here, so
5219 * first_validate_idle shouldn't have anything to do.
5221 gtk_text_view_update_layout_width (text_view);
5223 /* note that validation of onscreen could invoke this function
5224 * recursively, by scrolling to maintain first_para, or in response
5225 * to updating the layout width, however there is no problem with
5226 * that, or shouldn't be.
5228 gtk_text_view_validate_onscreen (text_view);
5230 /* process exposes */
5231 if (GTK_WIDGET_REALIZED (text_view))
5233 if (text_view->left_window)
5234 gdk_window_process_updates (text_view->left_window->bin_window, TRUE);
5236 if (text_view->right_window)
5237 gdk_window_process_updates (text_view->right_window->bin_window, TRUE);
5239 if (text_view->top_window)
5240 gdk_window_process_updates (text_view->top_window->bin_window, TRUE);
5242 if (text_view->bottom_window)
5243 gdk_window_process_updates (text_view->bottom_window->bin_window, TRUE);
5245 gdk_window_process_updates (text_view->text_window->bin_window, TRUE);
5248 /* If this got installed, get rid of it, it's just a waste of time. */
5249 if (text_view->first_validate_idle != 0)
5251 g_source_remove (text_view->first_validate_idle);
5252 text_view->first_validate_idle = 0;
5255 gtk_text_view_update_im_spot_location (text_view);
5257 DV(g_print(">End scroll offset changed handler ("G_STRLOC")\n"));
5261 gtk_text_view_commit_handler (GtkIMContext *context,
5263 GtkTextView *text_view)
5265 gboolean had_selection;
5267 gtk_text_buffer_begin_user_action (get_buffer (text_view));
5269 had_selection = gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
5272 gtk_text_buffer_delete_selection (get_buffer (text_view), TRUE,
5273 text_view->editable);
5275 if (!strcmp (str, "\n"))
5277 gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), "\n", 1,
5278 text_view->editable);
5282 if (!had_selection && text_view->overwrite_mode)
5283 gtk_text_view_delete_from_cursor (text_view, GTK_DELETE_CHARS, 1);
5284 gtk_text_buffer_insert_interactive_at_cursor (get_buffer (text_view), str, -1,
5285 text_view->editable);
5288 gtk_text_buffer_end_user_action (get_buffer (text_view));
5290 DV(g_print (G_STRLOC": scrolling onscreen\n"));
5291 gtk_text_view_scroll_mark_onscreen (text_view,
5292 gtk_text_buffer_get_mark (get_buffer (text_view),
5297 gtk_text_view_preedit_changed_handler (GtkIMContext *context,
5298 GtkTextView *text_view)
5301 PangoAttrList *attrs;
5304 gtk_im_context_get_preedit_string (context, &str, &attrs, &cursor_pos);
5305 gtk_text_layout_set_preedit_string (text_view->layout, str, attrs, cursor_pos);
5307 pango_attr_list_unref (attrs);
5312 gtk_text_view_mark_set_handler (GtkTextBuffer *buffer,
5313 const GtkTextIter *location,
5317 GtkTextView *text_view = GTK_TEXT_VIEW (data);
5318 gboolean need_reset = FALSE;
5320 if (mark == gtk_text_buffer_get_insert (buffer))
5322 text_view->virtual_cursor_x = -1;
5323 text_view->virtual_cursor_y = -1;
5326 else if (mark == gtk_text_buffer_get_selection_bound (buffer))
5332 gtk_text_view_reset_im_context (text_view);
5336 gtk_text_view_get_virtual_cursor_pos (GtkTextView *text_view,
5340 GdkRectangle strong_pos;
5343 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
5344 gtk_text_buffer_get_mark (get_buffer (text_view),
5347 if ((x && text_view->virtual_cursor_x == -1) ||
5348 (y && text_view->virtual_cursor_y == -1))
5349 gtk_text_layout_get_cursor_locations (text_view->layout, &insert, &strong_pos, NULL);
5353 if (text_view->virtual_cursor_x != -1)
5354 *x = text_view->virtual_cursor_x;
5361 if (text_view->virtual_cursor_x != -1)
5362 *y = text_view->virtual_cursor_y;
5364 *y = strong_pos.y + strong_pos.height / 2;
5369 gtk_text_view_set_virtual_cursor_pos (GtkTextView *text_view,
5373 GdkRectangle strong_pos;
5376 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view), &insert,
5377 gtk_text_buffer_get_mark (get_buffer (text_view),
5380 if (x == -1 || y == -1)
5381 gtk_text_layout_get_cursor_locations (text_view->layout, &insert, &strong_pos, NULL);
5383 text_view->virtual_cursor_x = (x == -1) ? strong_pos.x : x;
5384 text_view->virtual_cursor_y = (y == -1) ? strong_pos.y + strong_pos.height / 2 : y;
5387 /* Quick hack of a popup menu
5390 activate_cb (GtkWidget *menuitem,
5391 GtkTextView *text_view)
5393 const gchar *signal = g_object_get_data (G_OBJECT (menuitem), "gtk-signal");
5394 gtk_signal_emit_by_name (GTK_OBJECT (text_view), signal);
5398 append_action_signal (GtkTextView *text_view,
5400 const gchar *stock_id,
5401 const gchar *signal,
5404 GtkWidget *menuitem = gtk_image_menu_item_new_from_stock (stock_id, NULL);
5406 g_object_set_data (G_OBJECT (menuitem), "gtk-signal", (char *)signal);
5407 gtk_signal_connect (GTK_OBJECT (menuitem), "activate",
5408 GTK_SIGNAL_FUNC (activate_cb), text_view);
5410 gtk_widget_set_sensitive (menuitem, sensitive);
5412 gtk_widget_show (menuitem);
5413 gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem);
5417 popup_menu_detach (GtkWidget *attach_widget,
5420 GTK_TEXT_VIEW (attach_widget)->popup_menu = NULL;
5424 popup_position_func (GtkMenu *menu,
5430 GtkTextView *text_view;
5432 GdkRectangle cursor_rect;
5433 GdkRectangle onscreen_rect;
5434 gint root_x, root_y;
5438 text_view = GTK_TEXT_VIEW (user_data);
5439 widget = GTK_WIDGET (text_view);
5441 g_return_if_fail (GTK_WIDGET_REALIZED (text_view));
5443 gdk_window_get_origin (widget->window, &root_x, &root_y);
5445 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
5447 gtk_text_buffer_get_insert (get_buffer (text_view)));
5449 gtk_text_view_get_iter_location (text_view,
5453 gtk_text_view_get_visible_rect (text_view, &onscreen_rect);
5455 gtk_widget_size_request (text_view->popup_menu, &req);
5457 /* can't use rectangle_intersect since cursor rect can have 0 width */
5458 if (cursor_rect.x >= onscreen_rect.x &&
5459 cursor_rect.x < onscreen_rect.x + onscreen_rect.width &&
5460 cursor_rect.y >= onscreen_rect.y &&
5461 cursor_rect.y < onscreen_rect.y + onscreen_rect.height)
5463 gtk_text_view_buffer_to_window_coords (text_view,
5464 GTK_TEXT_WINDOW_WIDGET,
5465 cursor_rect.x, cursor_rect.y,
5466 &cursor_rect.x, &cursor_rect.y);
5468 *x = root_x + cursor_rect.x + cursor_rect.width;
5469 *y = root_y + cursor_rect.y + cursor_rect.height;
5473 /* Just center the menu, since cursor is offscreen. */
5474 *x = root_x + (widget->allocation.width / 2 - req.width / 2);
5475 *y = root_y + (widget->allocation.height / 2 - req.height / 2);
5479 *x = CLAMP (*x, root_x, (root_x + widget->allocation.width));
5480 *y = CLAMP (*y, root_y, (root_y + widget->allocation.height));
5482 *x = CLAMP (*x, 0, MAX (0, gdk_screen_width () - req.width));
5483 *y = CLAMP (*y, 0, MAX (0, gdk_screen_height () - req.height));
5488 GtkTextView *text_view;
5494 range_contains_editable_text (const GtkTextIter *start,
5495 const GtkTextIter *end,
5496 gboolean default_editability)
5498 GtkTextIter iter = *start;
5500 while (gtk_text_iter_compare (&iter, end) < 0)
5502 if (gtk_text_iter_editable (&iter, default_editability))
5505 gtk_text_iter_forward_to_tag_toggle (&iter, NULL);
5512 popup_targets_received (GtkClipboard *clipboard,
5513 GtkSelectionData *data,
5516 PopupInfo *info = user_data;
5517 GtkTextView *text_view = info->text_view;
5519 if (GTK_WIDGET_REALIZED (text_view))
5521 /* We implicitely rely here on the fact that if we are pasting ourself, we'll
5522 * have text targets as well as the private GTK_TEXT_BUFFER_CONTENTS target.
5524 gboolean clipboard_contains_text = gtk_selection_data_targets_include_text (data);
5525 GtkWidget *menuitem;
5527 gboolean have_selection;
5528 gboolean can_insert;
5530 GtkTextIter sel_start, sel_end;
5532 if (text_view->popup_menu)
5533 gtk_widget_destroy (text_view->popup_menu);
5535 text_view->popup_menu = gtk_menu_new ();
5537 gtk_menu_attach_to_widget (GTK_MENU (text_view->popup_menu),
5538 GTK_WIDGET (text_view),
5541 have_selection = gtk_text_buffer_get_selection_bounds (get_buffer (text_view),
5542 &sel_start, &sel_end);
5544 gtk_text_buffer_get_iter_at_mark (get_buffer (text_view),
5546 gtk_text_buffer_get_insert (get_buffer (text_view)));
5548 can_insert = gtk_text_iter_can_insert (&iter, text_view->editable);
5550 append_action_signal (text_view, text_view->popup_menu, GTK_STOCK_CUT, "cut_clipboard",
5552 range_contains_editable_text (&sel_start, &sel_end,
5553 text_view->editable));
5554 append_action_signal (text_view, text_view->popup_menu, GTK_STOCK_COPY, "copy_clipboard",
5556 append_action_signal (text_view, text_view->popup_menu, GTK_STOCK_PASTE, "paste_clipboard",
5557 can_insert && clipboard_contains_text);
5559 menuitem = gtk_separator_menu_item_new ();
5560 gtk_widget_show (menuitem);
5561 gtk_menu_shell_append (GTK_MENU_SHELL (text_view->popup_menu), menuitem);
5563 menuitem = gtk_menu_item_new_with_label (_("Input Methods"));
5564 gtk_widget_show (menuitem);
5565 submenu = gtk_menu_new ();
5566 gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), submenu);
5567 gtk_menu_shell_append (GTK_MENU_SHELL (text_view->popup_menu), menuitem);
5569 gtk_im_multicontext_append_menuitems (GTK_IM_MULTICONTEXT (text_view->im_context),
5570 GTK_MENU_SHELL (submenu));
5572 gtk_signal_emit (GTK_OBJECT (text_view),
5573 signals[POPULATE_POPUP],
5574 text_view->popup_menu);
5577 gtk_menu_popup (GTK_MENU (text_view->popup_menu), NULL, NULL,
5579 info->button, info->time);
5581 gtk_menu_popup (GTK_MENU (text_view->popup_menu), NULL, NULL,
5582 popup_position_func, text_view,
5583 0, gtk_get_current_event_time ());
5586 g_object_unref (text_view);
5591 gtk_text_view_do_popup (GtkTextView *text_view,
5592 GdkEventButton *event)
5594 PopupInfo *info = g_new (PopupInfo, 1);
5596 /* In order to know what entries we should make sensitive, we
5597 * ask for the current targets of the clipboard, and when
5598 * we get them, then we actually pop up the menu.
5600 info->text_view = g_object_ref (text_view);
5604 info->button = event->button;
5605 info->time = event->time;
5610 info->time = gtk_get_current_event_time ();
5613 gtk_clipboard_request_contents (gtk_clipboard_get (GDK_SELECTION_CLIPBOARD),
5614 gdk_atom_intern ("TARGETS", FALSE),
5615 popup_targets_received,
5620 gtk_text_view_popup_menu (GtkWidget *widget)
5622 gtk_text_view_do_popup (GTK_TEXT_VIEW (widget), NULL);
5625 /* Child GdkWindows */
5628 static GtkTextWindow*
5629 text_window_new (GtkTextWindowType type,
5632 gint height_request)
5636 win = g_new (GtkTextWindow, 1);
5639 win->widget = widget;
5641 win->bin_window = NULL;
5642 win->requisition.width = width_request;
5643 win->requisition.height = height_request;
5644 win->allocation.width = width_request;
5645 win->allocation.height = height_request;
5646 win->allocation.x = 0;
5647 win->allocation.y = 0;
5653 text_window_free (GtkTextWindow *win)
5656 text_window_unrealize (win);
5662 text_window_realize (GtkTextWindow *win,
5665 GdkWindowAttr attributes;
5666 gint attributes_mask;
5669 attributes.window_type = GDK_WINDOW_CHILD;
5670 attributes.x = win->allocation.x;
5671 attributes.y = win->allocation.y;
5672 attributes.width = win->allocation.width;
5673 attributes.height = win->allocation.height;
5674 attributes.wclass = GDK_INPUT_OUTPUT;
5675 attributes.visual = gtk_widget_get_visual (win->widget);
5676 attributes.colormap = gtk_widget_get_colormap (win->widget);
5677 attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK;
5679 attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
5681 win->window = gdk_window_new (parent,
5685 gdk_window_show (win->window);
5686 gdk_window_set_user_data (win->window, win->widget);
5690 attributes.width = win->allocation.width;
5691 attributes.height = win->allocation.height;
5692 attributes.event_mask = (GDK_EXPOSURE_MASK |
5694 GDK_KEY_PRESS_MASK |
5695 GDK_BUTTON_PRESS_MASK |
5696 GDK_BUTTON_RELEASE_MASK |
5697 GDK_POINTER_MOTION_MASK |
5698 GDK_POINTER_MOTION_HINT_MASK |
5699 gtk_widget_get_events (win->widget));
5701 win->bin_window = gdk_window_new (win->window,
5705 gdk_window_show (win->bin_window);
5706 gdk_window_set_user_data (win->bin_window, win->widget);
5708 if (win->type == GTK_TEXT_WINDOW_TEXT)
5711 cursor = gdk_cursor_new (GDK_XTERM);
5712 gdk_window_set_cursor (win->bin_window, cursor);
5713 gdk_cursor_destroy (cursor);
5715 gtk_im_context_set_client_window (GTK_TEXT_VIEW (win->widget)->im_context,
5719 gdk_window_set_background (win->bin_window,
5720 &win->widget->style->base[GTK_WIDGET_STATE (win->widget)]);
5724 gdk_window_set_background (win->bin_window,
5725 &win->widget->style->bg[GTK_WIDGET_STATE (win->widget)]);
5728 g_object_set_qdata (G_OBJECT (win->window),
5729 g_quark_from_static_string ("gtk-text-view-text-window"),
5732 g_object_set_qdata (G_OBJECT (win->bin_window),
5733 g_quark_from_static_string ("gtk-text-view-text-window"),
5738 text_window_unrealize (GtkTextWindow *win)
5740 if (win->type == GTK_TEXT_WINDOW_TEXT)
5742 gtk_im_context_set_client_window (GTK_TEXT_VIEW (win->widget)->im_context,
5746 gdk_window_set_user_data (win->window, NULL);
5747 gdk_window_set_user_data (win->bin_window, NULL);
5748 gdk_window_destroy (win->bin_window);
5749 gdk_window_destroy (win->window);
5751 win->bin_window = NULL;
5755 text_window_size_allocate (GtkTextWindow *win,
5758 win->allocation = *rect;
5762 gdk_window_move_resize (win->window,
5764 rect->width, rect->height);
5766 gdk_window_resize (win->bin_window,
5767 rect->width, rect->height);
5772 text_window_scroll (GtkTextWindow *win,
5776 if (dx != 0 || dy != 0)
5778 gdk_window_scroll (win->bin_window, dx, dy);
5783 text_window_invalidate_rect (GtkTextWindow *win,
5786 GdkRectangle window_rect;
5788 gtk_text_view_buffer_to_window_coords (GTK_TEXT_VIEW (win->widget),
5795 window_rect.width = rect->width;
5796 window_rect.height = rect->height;
5798 /* Adjust the rect as appropriate */
5802 case GTK_TEXT_WINDOW_TEXT:
5805 case GTK_TEXT_WINDOW_LEFT:
5806 case GTK_TEXT_WINDOW_RIGHT:
5808 window_rect.width = win->allocation.width;
5811 case GTK_TEXT_WINDOW_TOP:
5812 case GTK_TEXT_WINDOW_BOTTOM:
5814 window_rect.height = win->allocation.height;
5818 g_warning ("%s: bug!", G_STRLOC);
5823 gdk_window_invalidate_rect (win->bin_window, &window_rect, FALSE);
5827 GdkColor color = { 0, 65535, 0, 0 };
5828 GdkGC *gc = gdk_gc_new (win->bin_window);
5829 gdk_gc_set_rgb_fg_color (gc, &color);
5830 gdk_draw_rectangle (win->bin_window,
5831 gc, TRUE, window_rect.x, window_rect.y,
5832 window_rect.width, window_rect.height);
5839 text_window_get_width (GtkTextWindow *win)
5841 return win->allocation.width;
5845 text_window_get_height (GtkTextWindow *win)
5847 return win->allocation.height;
5851 text_window_get_allocation (GtkTextWindow *win,
5854 *rect = win->allocation;
5861 * gtk_text_view_get_window:
5862 * @text_view: a #GtkTextView
5863 * @win: window to get
5865 * Retrieves the #GdkWindow corresponding to an area of the text view;
5866 * possible windows include the overall widget window, child windows
5867 * on the left, right, top, bottom, and the window that displays the
5868 * text buffer. Windows are %NULL and nonexistent if their width or
5869 * height is 0, and are nonexistent before the widget has been
5872 * Return value: a #GdkWindow, or %NULL
5875 gtk_text_view_get_window (GtkTextView *text_view,
5876 GtkTextWindowType win)
5878 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), NULL);
5882 case GTK_TEXT_WINDOW_WIDGET:
5883 return GTK_WIDGET (text_view)->window;
5886 case GTK_TEXT_WINDOW_TEXT:
5887 return text_view->text_window->bin_window;
5890 case GTK_TEXT_WINDOW_LEFT:
5891 if (text_view->left_window)
5892 return text_view->left_window->bin_window;
5897 case GTK_TEXT_WINDOW_RIGHT:
5898 if (text_view->right_window)
5899 return text_view->right_window->bin_window;
5904 case GTK_TEXT_WINDOW_TOP:
5905 if (text_view->top_window)
5906 return text_view->top_window->bin_window;
5911 case GTK_TEXT_WINDOW_BOTTOM:
5912 if (text_view->bottom_window)
5913 return text_view->bottom_window->bin_window;
5919 g_warning ("%s: Unknown GtkTextWindowType", G_STRLOC);
5926 * gtk_text_view_get_window_type:
5927 * @text_view: a #GtkTextView
5928 * @window: a window type
5930 * Usually used to find out which window an event corresponds to.
5931 * If you connect to an event signal on @text_view, this function
5932 * should be called on <literal>event->window</literal> to
5933 * see which window it was.
5935 * Return value: the window type.
5938 gtk_text_view_get_window_type (GtkTextView *text_view,
5943 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
5944 g_return_val_if_fail (GDK_IS_WINDOW (window), 0);
5946 if (window == GTK_WIDGET (text_view)->window)
5947 return GTK_TEXT_WINDOW_WIDGET;
5949 win = g_object_get_qdata (G_OBJECT (window),
5950 g_quark_try_string ("gtk-text-view-text-window"));
5956 return GTK_TEXT_WINDOW_PRIVATE;
5961 buffer_to_widget (GtkTextView *text_view,
5967 gint focus_edge_width;
5968 gboolean interior_focus;
5970 gtk_widget_style_get (GTK_WIDGET (text_view), "interior_focus", &interior_focus, NULL);
5973 focus_edge_width = 0;
5975 focus_edge_width = 1;
5979 *window_x = buffer_x - text_view->xoffset + focus_edge_width;
5980 if (text_view->left_window)
5981 *window_x += text_view->left_window->allocation.width;
5986 *window_y = buffer_y - text_view->yoffset + focus_edge_width;
5987 if (text_view->top_window)
5988 *window_y += text_view->top_window->allocation.height;
5993 widget_to_text_window (GtkTextWindow *win,
6000 *window_x = widget_x - win->allocation.x;
6003 *window_y = widget_y - win->allocation.y;
6007 buffer_to_text_window (GtkTextView *text_view,
6016 g_warning ("Attempt to convert text buffer coordinates to coordinates "
6017 "for a nonexistent or private child window of GtkTextView");
6021 buffer_to_widget (text_view,
6023 window_x, window_y);
6025 widget_to_text_window (win,
6026 window_x ? *window_x : 0,
6027 window_y ? *window_y : 0,
6033 * gtk_text_view_buffer_to_window_coords:
6034 * @text_view: a #GtkTextView
6035 * @win: a #GtkTextWindowType
6036 * @buffer_x: buffer x coordinate
6037 * @buffer_y: buffer y coordinate
6038 * @window_x: window x coordinate return location
6039 * @window_y: window y coordinate return location
6041 * Converts coordinate (@buffer_x, @buffer_y) to coordinates for the window
6042 * @win, and stores the result in (@window_x, @window_y).
6045 gtk_text_view_buffer_to_window_coords (GtkTextView *text_view,
6046 GtkTextWindowType win,
6052 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
6056 case GTK_TEXT_WINDOW_WIDGET:
6057 buffer_to_widget (text_view,
6059 window_x, window_y);
6062 case GTK_TEXT_WINDOW_TEXT:
6064 *window_x = buffer_x - text_view->xoffset;
6066 *window_y = buffer_y - text_view->yoffset;
6069 case GTK_TEXT_WINDOW_LEFT:
6070 buffer_to_text_window (text_view,
6071 text_view->left_window,
6073 window_x, window_y);
6076 case GTK_TEXT_WINDOW_RIGHT:
6077 buffer_to_text_window (text_view,
6078 text_view->right_window,
6080 window_x, window_y);
6083 case GTK_TEXT_WINDOW_TOP:
6084 buffer_to_text_window (text_view,
6085 text_view->top_window,
6087 window_x, window_y);
6090 case GTK_TEXT_WINDOW_BOTTOM:
6091 buffer_to_text_window (text_view,
6092 text_view->bottom_window,
6094 window_x, window_y);
6097 case GTK_TEXT_WINDOW_PRIVATE:
6098 g_warning ("%s: can't get coords for private windows", G_STRLOC);
6102 g_warning ("%s: Unknown GtkTextWindowType", G_STRLOC);
6108 widget_to_buffer (GtkTextView *text_view,
6114 gint focus_edge_width;
6115 gboolean interior_focus;
6117 gtk_widget_style_get (GTK_WIDGET (text_view), "interior_focus", &interior_focus, NULL);
6120 focus_edge_width = 0;
6122 focus_edge_width = 1;
6126 *buffer_x = widget_x - focus_edge_width + text_view->xoffset;
6127 if (text_view->left_window)
6128 *buffer_x -= text_view->left_window->allocation.width;
6133 *buffer_y = widget_y - focus_edge_width + text_view->yoffset;
6134 if (text_view->top_window)
6135 *buffer_y -= text_view->top_window->allocation.height;
6140 text_window_to_widget (GtkTextWindow *win,
6147 *widget_x = window_x + win->allocation.x;
6150 *widget_y = window_y + win->allocation.y;
6154 text_window_to_buffer (GtkTextView *text_view,
6163 g_warning ("Attempt to convert GtkTextView buffer coordinates into "
6164 "coordinates for a nonexistent child window.");
6168 text_window_to_widget (win,
6174 widget_to_buffer (text_view,
6175 buffer_x ? *buffer_x : 0,
6176 buffer_y ? *buffer_y : 0,
6182 * gtk_text_view_window_to_buffer_coords:
6183 * @text_view: a #GtkTextView
6184 * @win: a #GtkTextWindowType
6185 * @window_x: window x coordinate
6186 * @window_y: window y coordinate
6187 * @buffer_x: buffer x coordinate return location
6188 * @buffer_y: buffer y coordinate return location
6190 * Converts coordinates on the window identified by @win to buffer
6191 * coordinates, storing the result in (@buffer_x,@buffer_y).
6194 gtk_text_view_window_to_buffer_coords (GtkTextView *text_view,
6195 GtkTextWindowType win,
6201 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
6205 case GTK_TEXT_WINDOW_WIDGET:
6206 widget_to_buffer (text_view,
6208 buffer_x, buffer_y);
6211 case GTK_TEXT_WINDOW_TEXT:
6213 *buffer_x = window_x + text_view->xoffset;
6215 *buffer_y = window_y + text_view->yoffset;
6218 case GTK_TEXT_WINDOW_LEFT:
6219 text_window_to_buffer (text_view,
6220 text_view->left_window,
6222 buffer_x, buffer_y);
6225 case GTK_TEXT_WINDOW_RIGHT:
6226 text_window_to_buffer (text_view,
6227 text_view->right_window,
6229 buffer_x, buffer_y);
6232 case GTK_TEXT_WINDOW_TOP:
6233 text_window_to_buffer (text_view,
6234 text_view->top_window,
6236 buffer_x, buffer_y);
6239 case GTK_TEXT_WINDOW_BOTTOM:
6240 text_window_to_buffer (text_view,
6241 text_view->bottom_window,
6243 buffer_x, buffer_y);
6246 case GTK_TEXT_WINDOW_PRIVATE:
6247 g_warning ("%s: can't get coords for private windows", G_STRLOC);
6251 g_warning ("%s: Unknown GtkTextWindowType", G_STRLOC);
6257 set_window_width (GtkTextView *text_view,
6259 GtkTextWindowType type,
6260 GtkTextWindow **winp)
6266 text_window_free (*winp);
6268 gtk_widget_queue_resize (GTK_WIDGET (text_view));
6275 *winp = text_window_new (type,
6276 GTK_WIDGET (text_view),
6278 /* if the widget is already realized we need to realize the child manually */
6279 if (GTK_WIDGET_REALIZED (text_view))
6280 text_window_realize (*winp, GTK_WIDGET (text_view)->window);
6284 if ((*winp)->requisition.width == width)
6288 gtk_widget_queue_resize (GTK_WIDGET (text_view));
6294 set_window_height (GtkTextView *text_view,
6296 GtkTextWindowType type,
6297 GtkTextWindow **winp)
6303 text_window_free (*winp);
6305 gtk_widget_queue_resize (GTK_WIDGET (text_view));
6312 *winp = text_window_new (type,
6313 GTK_WIDGET (text_view),
6316 /* if the widget is already realized we need to realize the child manually */
6317 if (GTK_WIDGET_REALIZED (text_view))
6318 text_window_realize (*winp, GTK_WIDGET (text_view)->window);
6322 if ((*winp)->requisition.height == height)
6326 gtk_widget_queue_resize (GTK_WIDGET (text_view));
6331 * gtk_text_view_set_border_window_size:
6332 * @text_view: a #GtkTextView
6333 * @type: window to affect
6334 * @size: width or height of the window
6336 * Sets the width of %GTK_TEXT_WINDOW_LEFT or %GTK_TEXT_WINDOW_RIGHT,
6337 * or the height of %GTK_TEXT_WINDOW_TOP or %GTK_TEXT_WINDOW_BOTTOM.
6338 * Automatically destroys the corresponding window if the size is set
6339 * to 0, and creates the window if the size is set to non-zero. This
6340 * function can only be used for the "border windows," it doesn't work
6341 * with #GTK_TEXT_WINDOW_WIDGET, #GTK_TEXT_WINDOW_TEXT, or
6342 * #GTK_TEXT_WINDOW_PRIVATE.
6345 gtk_text_view_set_border_window_size (GtkTextView *text_view,
6346 GtkTextWindowType type,
6350 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
6351 g_return_if_fail (size >= 0);
6355 case GTK_TEXT_WINDOW_LEFT:
6356 set_window_width (text_view, size, GTK_TEXT_WINDOW_LEFT,
6357 &text_view->left_window);
6360 case GTK_TEXT_WINDOW_RIGHT:
6361 set_window_width (text_view, size, GTK_TEXT_WINDOW_RIGHT,
6362 &text_view->right_window);
6365 case GTK_TEXT_WINDOW_TOP:
6366 set_window_height (text_view, size, GTK_TEXT_WINDOW_TOP,
6367 &text_view->top_window);
6370 case GTK_TEXT_WINDOW_BOTTOM:
6371 set_window_height (text_view, size, GTK_TEXT_WINDOW_BOTTOM,
6372 &text_view->bottom_window);
6376 g_warning ("Can only set size of left/right/top/bottom border windows with gtk_text_view_set_border_window_size()");
6382 * gtk_text_view_get_border_window_size:
6383 * @text_view: a #GtkTextView
6384 * @type: window to return size from
6386 * Gets the width of the specified border window. See
6387 * gtk_text_view_set_border_window_size().
6389 * Return value: width of window
6392 gtk_text_view_get_border_window_size (GtkTextView *text_view,
6393 GtkTextWindowType type)
6395 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), 0);
6399 case GTK_TEXT_WINDOW_LEFT:
6400 if (text_view->left_window)
6401 return text_view->left_window->requisition.width;
6403 case GTK_TEXT_WINDOW_RIGHT:
6404 if (text_view->right_window)
6405 return text_view->right_window->requisition.width;
6407 case GTK_TEXT_WINDOW_TOP:
6408 if (text_view->top_window)
6409 return text_view->top_window->requisition.height;
6411 case GTK_TEXT_WINDOW_BOTTOM:
6412 if (text_view->bottom_window)
6413 return text_view->bottom_window->requisition.height;
6416 g_warning ("Can only get size of left/right/top/bottom border windows with gtk_text_view_get_border_window_size()");
6427 static GtkTextViewChild*
6428 text_view_child_new_anchored (GtkWidget *child,
6429 GtkTextChildAnchor *anchor,
6430 GtkTextLayout *layout)
6432 GtkTextViewChild *vc;
6434 vc = g_new (GtkTextViewChild, 1);
6437 vc->anchor = anchor;
6439 vc->from_top_of_line = 0;
6440 vc->from_left_of_buffer = 0;
6442 g_object_ref (G_OBJECT (vc->widget));
6443 g_object_ref (G_OBJECT (vc->anchor));
6445 g_object_set_data (G_OBJECT (child),
6446 "gtk-text-view-child",
6449 gtk_text_child_anchor_register_child (anchor, child, layout);
6454 static GtkTextViewChild*
6455 text_view_child_new_window (GtkWidget *child,
6456 GtkTextWindowType type,
6460 GtkTextViewChild *vc;
6462 vc = g_new (GtkTextViewChild, 1);
6467 vc->from_top_of_line = 0;
6468 vc->from_left_of_buffer = 0;
6470 g_object_ref (G_OBJECT (vc->widget));
6480 text_view_child_free (GtkTextViewChild *child)
6482 g_object_set_data (G_OBJECT (child->widget),
6483 "gtk-text-view-child", NULL);
6487 gtk_text_child_anchor_unregister_child (child->anchor,
6489 g_object_unref (G_OBJECT (child->anchor));
6492 g_object_unref (G_OBJECT (child->widget));
6498 text_view_child_set_parent_window (GtkTextView *text_view,
6499 GtkTextViewChild *vc)
6502 gtk_widget_set_parent_window (vc->widget,
6503 text_view->text_window->bin_window);
6507 window = gtk_text_view_get_window (text_view,
6509 gtk_widget_set_parent_window (vc->widget, window);
6514 add_child (GtkTextView *text_view,
6515 GtkTextViewChild *vc)
6517 text_view->children = g_slist_prepend (text_view->children,
6520 if (GTK_WIDGET_REALIZED (text_view))
6521 text_view_child_set_parent_window (text_view, vc);
6523 gtk_widget_set_parent (vc->widget, GTK_WIDGET (text_view));
6527 gtk_text_view_add_child_at_anchor (GtkTextView *text_view,
6529 GtkTextChildAnchor *anchor)
6531 GtkTextViewChild *vc;
6533 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
6534 g_return_if_fail (GTK_IS_WIDGET (child));
6535 g_return_if_fail (GTK_IS_TEXT_CHILD_ANCHOR (anchor));
6536 g_return_if_fail (child->parent == NULL);
6538 gtk_text_view_ensure_layout (text_view);
6540 vc = text_view_child_new_anchored (child, anchor,
6543 add_child (text_view, vc);
6547 gtk_text_view_add_child_in_window (GtkTextView *text_view,
6549 GtkTextWindowType which_window,
6553 GtkTextViewChild *vc;
6555 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
6556 g_return_if_fail (GTK_IS_WIDGET (child));
6557 g_return_if_fail (xpos >= 0);
6558 g_return_if_fail (ypos >= 0);
6559 g_return_if_fail (child->parent == NULL);
6561 vc = text_view_child_new_window (child, which_window,
6564 add_child (text_view, vc);
6568 gtk_text_view_move_child (GtkTextView *text_view,
6573 GtkTextViewChild *vc;
6575 g_return_if_fail (GTK_IS_TEXT_VIEW (text_view));
6576 g_return_if_fail (GTK_IS_WIDGET (child));
6577 g_return_if_fail (xpos >= 0);
6578 g_return_if_fail (ypos >= 0);
6579 g_return_if_fail (child->parent == (GtkWidget*) text_view);
6581 vc = g_object_get_data (G_OBJECT (child),
6582 "gtk-text-view-child");
6584 g_assert (vc != NULL);
6589 if (GTK_WIDGET_VISIBLE (child) && GTK_WIDGET_VISIBLE (text_view))
6590 gtk_widget_queue_resize (child);
6595 /* Iterator operations */
6598 gtk_text_view_forward_display_line (GtkTextView *text_view,
6601 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
6602 g_return_val_if_fail (iter != NULL, FALSE);
6604 gtk_text_view_ensure_layout (text_view);
6606 return gtk_text_layout_move_iter_to_next_line (text_view->layout, iter);
6610 gtk_text_view_backward_display_line (GtkTextView *text_view,
6613 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
6614 g_return_val_if_fail (iter != NULL, FALSE);
6616 gtk_text_view_ensure_layout (text_view);
6618 return gtk_text_layout_move_iter_to_previous_line (text_view->layout, iter);
6622 gtk_text_view_forward_display_line_end (GtkTextView *text_view,
6625 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
6626 g_return_val_if_fail (iter != NULL, FALSE);
6628 gtk_text_view_ensure_layout (text_view);
6630 return gtk_text_layout_move_iter_to_line_end (text_view->layout, iter, 1);
6634 gtk_text_view_backward_display_line_start (GtkTextView *text_view,
6637 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
6638 g_return_val_if_fail (iter != NULL, FALSE);
6640 gtk_text_view_ensure_layout (text_view);
6642 return gtk_text_layout_move_iter_to_line_end (text_view->layout, iter, -1);
6646 gtk_text_view_starts_display_line (GtkTextView *text_view,
6647 const GtkTextIter *iter)
6649 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
6650 g_return_val_if_fail (iter != NULL, FALSE);
6652 gtk_text_view_ensure_layout (text_view);
6654 return gtk_text_layout_iter_starts_line (text_view->layout, iter);
6658 gtk_text_view_move_visually (GtkTextView *text_view,
6662 g_return_val_if_fail (GTK_IS_TEXT_VIEW (text_view), FALSE);
6663 g_return_val_if_fail (iter != NULL, FALSE);
6665 gtk_text_view_ensure_layout (text_view);
6667 return gtk_text_layout_move_iter_visually (text_view->layout, iter, count);