1 /* GTK - The GIMP Toolkit
2 * gtktextbuffer.c Copyright (C) 2000 Red Hat, Inc.
3 * Copyright (C) 2004 Nokia Corporation
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 * Boston, MA 02111-1307, USA.
22 * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
23 * file for a list of people on the GTK+ Team. See the ChangeLog
24 * files for a list of changes. These files are distributed with
25 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
32 #define GTK_TEXT_USE_INTERNAL_UNSUPPORTED_API
33 #include "gtkclipboard.h"
35 #include "gtkinvisible.h"
36 #include "gtkmarshalers.h"
37 #include "gtktextbuffer.h"
38 #include "gtktextbufferrichtext.h"
39 #include "gtktextbtree.h"
40 #include "gtktextiterprivate.h"
41 #include "gtkprivate.h"
45 #define GTK_TEXT_BUFFER_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_TEXT_BUFFER, GtkTextBufferPrivate))
47 typedef struct _GtkTextLogAttrCache GtkTextLogAttrCache;
49 struct _GtkTextBufferPrivate
51 GtkTargetList *copy_target_list;
52 GtkTargetEntry *copy_target_entries;
53 gint n_copy_target_entries;
55 GtkTargetList *paste_target_list;
56 GtkTargetEntry *paste_target_entries;
57 gint n_paste_target_entries;
59 GtkTextTagTable *tag_table;
62 GSList *clipboard_contents_buffers;
63 GSList *selection_clipboards;
65 GtkTextLogAttrCache *log_attr_cache;
67 guint user_action_count;
69 /* Whether the buffer has been modified since last save */
72 guint has_selection : 1;
76 typedef struct _ClipboardRequest ClipboardRequest;
78 struct _ClipboardRequest
80 GtkTextBuffer *buffer;
82 gboolean default_editable;
83 gboolean is_clipboard;
84 gboolean replace_selection;
113 PROP_CURSOR_POSITION,
114 PROP_COPY_TARGET_LIST,
115 PROP_PASTE_TARGET_LIST
118 static void gtk_text_buffer_finalize (GObject *object);
120 static void gtk_text_buffer_real_insert_text (GtkTextBuffer *buffer,
124 static void gtk_text_buffer_real_insert_pixbuf (GtkTextBuffer *buffer,
127 static void gtk_text_buffer_real_insert_anchor (GtkTextBuffer *buffer,
129 GtkTextChildAnchor *anchor);
130 static void gtk_text_buffer_real_delete_range (GtkTextBuffer *buffer,
133 static void gtk_text_buffer_real_apply_tag (GtkTextBuffer *buffer,
135 const GtkTextIter *start_char,
136 const GtkTextIter *end_char);
137 static void gtk_text_buffer_real_remove_tag (GtkTextBuffer *buffer,
139 const GtkTextIter *start_char,
140 const GtkTextIter *end_char);
141 static void gtk_text_buffer_real_changed (GtkTextBuffer *buffer);
142 static void gtk_text_buffer_real_mark_set (GtkTextBuffer *buffer,
143 const GtkTextIter *iter,
146 static GtkTextBTree* get_btree (GtkTextBuffer *buffer);
147 static void free_log_attr_cache (GtkTextLogAttrCache *cache);
149 static void remove_all_selection_clipboards (GtkTextBuffer *buffer);
150 static void update_selection_clipboards (GtkTextBuffer *buffer);
152 static GtkTextBuffer *create_clipboard_contents_buffer (GtkTextBuffer *buffer);
154 static void gtk_text_buffer_free_target_lists (GtkTextBuffer *buffer);
156 static guint signals[LAST_SIGNAL] = { 0 };
158 static void gtk_text_buffer_set_property (GObject *object,
162 static void gtk_text_buffer_get_property (GObject *object,
166 static void gtk_text_buffer_notify (GObject *object,
169 G_DEFINE_TYPE (GtkTextBuffer, gtk_text_buffer, G_TYPE_OBJECT)
172 gtk_text_buffer_class_init (GtkTextBufferClass *klass)
174 GObjectClass *object_class = G_OBJECT_CLASS (klass);
176 object_class->finalize = gtk_text_buffer_finalize;
177 object_class->set_property = gtk_text_buffer_set_property;
178 object_class->get_property = gtk_text_buffer_get_property;
179 object_class->notify = gtk_text_buffer_notify;
181 klass->insert_text = gtk_text_buffer_real_insert_text;
182 klass->insert_pixbuf = gtk_text_buffer_real_insert_pixbuf;
183 klass->insert_child_anchor = gtk_text_buffer_real_insert_anchor;
184 klass->delete_range = gtk_text_buffer_real_delete_range;
185 klass->apply_tag = gtk_text_buffer_real_apply_tag;
186 klass->remove_tag = gtk_text_buffer_real_remove_tag;
187 klass->changed = gtk_text_buffer_real_changed;
188 klass->mark_set = gtk_text_buffer_real_mark_set;
191 g_object_class_install_property (object_class,
193 g_param_spec_object ("tag-table",
195 P_("Text Tag Table"),
196 GTK_TYPE_TEXT_TAG_TABLE,
197 GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
199 /* Normal properties*/
202 * GtkTextBuffer:text:
204 * The text content of the buffer. Without child widgets and images,
205 * see gtk_text_buffer_get_text() for more information.
209 g_object_class_install_property (object_class,
211 g_param_spec_string ("text",
213 P_("Current text of the buffer"),
215 GTK_PARAM_READWRITE));
218 * GtkTextBuffer:has-selection:
220 * Whether the buffer has some text currently selected.
224 g_object_class_install_property (object_class,
226 g_param_spec_boolean ("has-selection",
228 P_("Whether the buffer has some text currently selected"),
230 GTK_PARAM_READABLE));
233 * GtkTextBuffer:cursor-position:
235 * The position of the insert mark (as offset from the beginning
236 * of the buffer). It is useful for getting notified when the
241 g_object_class_install_property (object_class,
242 PROP_CURSOR_POSITION,
243 g_param_spec_int ("cursor-position",
244 P_("Cursor position"),
245 P_("The position of the insert mark (as offset from the beginning of the buffer)"),
247 GTK_PARAM_READABLE));
250 * GtkTextBuffer:copy-target-list:
252 * The list of targets this buffer supports for clipboard copying
257 g_object_class_install_property (object_class,
258 PROP_COPY_TARGET_LIST,
259 g_param_spec_boxed ("copy-target-list",
260 P_("Copy target list"),
261 P_("The list of targets this buffer supports for clipboard copying and DND source"),
262 GTK_TYPE_TARGET_LIST,
263 GTK_PARAM_READABLE));
266 * GtkTextBuffer:paste-target-list:
268 * The list of targets this buffer supports for clipboard pasting
269 * and as DND destination.
273 g_object_class_install_property (object_class,
274 PROP_PASTE_TARGET_LIST,
275 g_param_spec_boxed ("paste-target-list",
276 P_("Paste target list"),
277 P_("The list of targets this buffer supports for clipboard pasting and DND destination"),
278 GTK_TYPE_TARGET_LIST,
279 GTK_PARAM_READABLE));
282 * GtkTextBuffer::insert-text:
283 * @textbuffer: the object which received the signal
284 * @location: position to insert @text in @textbuffer
285 * @text: the UTF-8 text to be inserted
286 * @len: length of the inserted text in bytes
288 * The ::insert-text signal is emitted to insert text in a #GtkTextBuffer.
289 * Insertion actually occurs in the default handler.
291 * Note that if your handler runs before the default handler it must not
292 * invalidate the @location iter (or has to revalidate it).
293 * The default signal handler revalidates it to point to the end of the
297 * gtk_text_buffer_insert(),
298 * gtk_text_buffer_insert_range().
300 signals[INSERT_TEXT] =
301 g_signal_new (I_("insert-text"),
302 G_OBJECT_CLASS_TYPE (object_class),
304 G_STRUCT_OFFSET (GtkTextBufferClass, insert_text),
306 _gtk_marshal_VOID__BOXED_STRING_INT,
309 GTK_TYPE_TEXT_ITER | G_SIGNAL_TYPE_STATIC_SCOPE,
310 G_TYPE_STRING | G_SIGNAL_TYPE_STATIC_SCOPE,
314 * GtkTextBuffer::insert-pixbuf:
315 * @textbuffer: the object which received the signal
316 * @location: position to insert @pixbuf in @textbuffer
317 * @pixbuf: the #GdkPixbuf to be inserted
319 * The ::insert-pixbuf signal is emitted to insert a #GdkPixbuf
320 * in a #GtkTextBuffer. Insertion actually occurs in the default handler.
322 * Note that if your handler runs before the default handler it must not
323 * invalidate the @location iter (or has to revalidate it).
324 * The default signal handler revalidates it to be placed after the
327 * See also: gtk_text_buffer_insert_pixbuf().
329 signals[INSERT_PIXBUF] =
330 g_signal_new (I_("insert-pixbuf"),
331 G_OBJECT_CLASS_TYPE (object_class),
333 G_STRUCT_OFFSET (GtkTextBufferClass, insert_pixbuf),
335 _gtk_marshal_VOID__BOXED_OBJECT,
338 GTK_TYPE_TEXT_ITER | G_SIGNAL_TYPE_STATIC_SCOPE,
343 * GtkTextBuffer::insert-child-anchor:
344 * @textbuffer: the object which received the signal
345 * @location: position to insert @anchor in @textbuffer
346 * @anchor: the #GtkTextChildAnchor to be inserted
348 * The ::insert-child-anchor signal is emitted to insert a
349 * #GtkTextChildAnchor in a #GtkTextBuffer.
350 * Insertion actually occurs in the default handler.
352 * Note that if your handler runs before the default handler it must
353 * not invalidate the @location iter (or has to revalidate it).
354 * The default signal handler revalidates it to be placed after the
357 * See also: gtk_text_buffer_insert_child_anchor().
359 signals[INSERT_CHILD_ANCHOR] =
360 g_signal_new (I_("insert-child-anchor"),
361 G_OBJECT_CLASS_TYPE (object_class),
363 G_STRUCT_OFFSET (GtkTextBufferClass, insert_child_anchor),
365 _gtk_marshal_VOID__BOXED_OBJECT,
368 GTK_TYPE_TEXT_ITER | G_SIGNAL_TYPE_STATIC_SCOPE,
369 GTK_TYPE_TEXT_CHILD_ANCHOR);
372 * GtkTextBuffer::delete-range:
373 * @textbuffer: the object which received the signal
374 * @start: the start of the range to be deleted
375 * @end: the end of the range to be deleted
377 * The ::delete-range signal is emitted to delete a range
378 * from a #GtkTextBuffer.
380 * Note that if your handler runs before the default handler it must not
381 * invalidate the @start and @end iters (or has to revalidate them).
382 * The default signal handler revalidates the @start and @end iters to
383 * both point point to the location where text was deleted. Handlers
384 * which run after the default handler (see g_signal_connect_after())
385 * do not have access to the deleted text.
387 * See also: gtk_text_buffer_delete().
389 signals[DELETE_RANGE] =
390 g_signal_new (I_("delete-range"),
391 G_OBJECT_CLASS_TYPE (object_class),
393 G_STRUCT_OFFSET (GtkTextBufferClass, delete_range),
395 _gtk_marshal_VOID__BOXED_BOXED,
398 GTK_TYPE_TEXT_ITER | G_SIGNAL_TYPE_STATIC_SCOPE,
399 GTK_TYPE_TEXT_ITER | G_SIGNAL_TYPE_STATIC_SCOPE);
402 * GtkTextBuffer::changed:
403 * @textbuffer: the object which received the signal
405 * The ::changed signal is emitted when the content of a #GtkTextBuffer
409 g_signal_new (I_("changed"),
410 G_OBJECT_CLASS_TYPE (object_class),
412 G_STRUCT_OFFSET (GtkTextBufferClass, changed),
414 _gtk_marshal_VOID__VOID,
419 * GtkTextBuffer::modified-changed:
420 * @textbuffer: the object which received the signal
422 * The ::modified-changed signal is emitted when the modified bit of a
423 * #GtkTextBuffer flips.
426 * gtk_text_buffer_set_modified().
428 signals[MODIFIED_CHANGED] =
429 g_signal_new (I_("modified-changed"),
430 G_OBJECT_CLASS_TYPE (object_class),
432 G_STRUCT_OFFSET (GtkTextBufferClass, modified_changed),
434 _gtk_marshal_VOID__VOID,
439 * GtkTextBuffer::mark-set:
440 * @textbuffer: the object which received the signal
441 * @location: The location of @mark in @textbuffer
442 * @mark: The mark that is set
444 * The ::mark-set signal is emitted as notification
445 * after a #GtkTextMark is set.
448 * gtk_text_buffer_create_mark(),
449 * gtk_text_buffer_move_mark().
452 g_signal_new (I_("mark-set"),
453 G_OBJECT_CLASS_TYPE (object_class),
455 G_STRUCT_OFFSET (GtkTextBufferClass, mark_set),
457 _gtk_marshal_VOID__BOXED_OBJECT,
464 * GtkTextBuffer::mark-deleted:
465 * @textbuffer: the object which received the signal
466 * @mark: The mark that was deleted
468 * The ::mark-deleted signal is emitted as notification
469 * after a #GtkTextMark is deleted.
472 * gtk_text_buffer_delete_mark().
474 signals[MARK_DELETED] =
475 g_signal_new (I_("mark-deleted"),
476 G_OBJECT_CLASS_TYPE (object_class),
478 G_STRUCT_OFFSET (GtkTextBufferClass, mark_deleted),
480 _gtk_marshal_VOID__OBJECT,
486 * GtkTextBuffer::apply-tag:
487 * @textbuffer: the object which received the signal
488 * @tag: the applied tag
489 * @start: the start of the range the tag is applied to
490 * @end: the end of the range the tag is applied to
492 * The ::apply-tag signal is emitted to apply a tag to a
493 * range of text in a #GtkTextBuffer.
494 * Applying actually occurs in the default handler.
496 * Note that if your handler runs before the default handler it must not
497 * invalidate the @start and @end iters (or has to revalidate them).
500 * gtk_text_buffer_apply_tag(),
501 * gtk_text_buffer_insert_with_tags(),
502 * gtk_text_buffer_insert_range().
505 g_signal_new (I_("apply-tag"),
506 G_OBJECT_CLASS_TYPE (object_class),
508 G_STRUCT_OFFSET (GtkTextBufferClass, apply_tag),
510 _gtk_marshal_VOID__OBJECT_BOXED_BOXED,
519 * GtkTextBuffer::remove-tag:
520 * @textbuffer: the object which received the signal
521 * @tag: the tag to be removed
522 * @start: the start of the range the tag is removed from
523 * @end: the end of the range the tag is removed from
525 * The ::remove-tag signal is emitted to remove all occurrences of @tag from
526 * a range of text in a #GtkTextBuffer.
527 * Removal actually occurs in the default handler.
529 * Note that if your handler runs before the default handler it must not
530 * invalidate the @start and @end iters (or has to revalidate them).
533 * gtk_text_buffer_remove_tag().
535 signals[REMOVE_TAG] =
536 g_signal_new (I_("remove-tag"),
537 G_OBJECT_CLASS_TYPE (object_class),
539 G_STRUCT_OFFSET (GtkTextBufferClass, remove_tag),
541 _gtk_marshal_VOID__OBJECT_BOXED_BOXED,
549 * GtkTextBuffer::begin-user-action:
550 * @textbuffer: the object which received the signal
552 * The ::begin-user-action signal is emitted at the beginning of a single
553 * user-visible operation on a #GtkTextBuffer.
556 * gtk_text_buffer_begin_user_action(),
557 * gtk_text_buffer_insert_interactive(),
558 * gtk_text_buffer_insert_range_interactive(),
559 * gtk_text_buffer_delete_interactive(),
560 * gtk_text_buffer_backspace(),
561 * gtk_text_buffer_delete_selection().
563 signals[BEGIN_USER_ACTION] =
564 g_signal_new (I_("begin-user-action"),
565 G_OBJECT_CLASS_TYPE (object_class),
567 G_STRUCT_OFFSET (GtkTextBufferClass, begin_user_action),
569 _gtk_marshal_VOID__VOID,
574 * GtkTextBuffer::end-user-action:
575 * @textbuffer: the object which received the signal
577 * The ::end-user-action signal is emitted at the end of a single
578 * user-visible operation on the #GtkTextBuffer.
581 * gtk_text_buffer_end_user_action(),
582 * gtk_text_buffer_insert_interactive(),
583 * gtk_text_buffer_insert_range_interactive(),
584 * gtk_text_buffer_delete_interactive(),
585 * gtk_text_buffer_backspace(),
586 * gtk_text_buffer_delete_selection(),
587 * gtk_text_buffer_backspace().
589 signals[END_USER_ACTION] =
590 g_signal_new (I_("end-user-action"),
591 G_OBJECT_CLASS_TYPE (object_class),
593 G_STRUCT_OFFSET (GtkTextBufferClass, end_user_action),
595 _gtk_marshal_VOID__VOID,
600 * GtkTextBuffer::paste-done:
601 * @textbuffer: the object which received the signal
603 * The paste-done signal is emitted after paste operation has been completed.
604 * This is useful to properly scroll the view to the end of the pasted text.
605 * See gtk_text_buffer_paste_clipboard() for more details.
609 signals[PASTE_DONE] =
610 g_signal_new (I_("paste-done"),
611 G_OBJECT_CLASS_TYPE (object_class),
613 G_STRUCT_OFFSET (GtkTextBufferClass, paste_done),
615 _gtk_marshal_VOID__OBJECT,
620 g_type_class_add_private (object_class, sizeof (GtkTextBufferPrivate));
624 gtk_text_buffer_init (GtkTextBuffer *buffer)
626 buffer->priv = GTK_TEXT_BUFFER_GET_PRIVATE (buffer);
628 buffer->priv->clipboard_contents_buffers = NULL;
629 buffer->priv->tag_table = NULL;
631 /* allow copying of arbiatray stuff in the internal rich text format */
632 gtk_text_buffer_register_serialize_tagset (buffer, NULL);
636 set_table (GtkTextBuffer *buffer, GtkTextTagTable *table)
638 GtkTextBufferPrivate *priv = buffer->priv;
640 g_return_if_fail (priv->tag_table == NULL);
644 priv->tag_table = table;
645 g_object_ref (priv->tag_table);
646 _gtk_text_tag_table_add_buffer (table, buffer);
650 static GtkTextTagTable*
651 get_table (GtkTextBuffer *buffer)
653 GtkTextBufferPrivate *priv = buffer->priv;
655 if (priv->tag_table == NULL)
657 priv->tag_table = gtk_text_tag_table_new ();
658 _gtk_text_tag_table_add_buffer (priv->tag_table, buffer);
661 return priv->tag_table;
665 gtk_text_buffer_set_property (GObject *object,
670 GtkTextBuffer *text_buffer;
672 text_buffer = GTK_TEXT_BUFFER (object);
677 set_table (text_buffer, g_value_get_object (value));
681 gtk_text_buffer_set_text (text_buffer,
682 g_value_get_string (value), -1);
686 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
692 gtk_text_buffer_get_property (GObject *object,
697 GtkTextBuffer *text_buffer;
700 text_buffer = GTK_TEXT_BUFFER (object);
705 g_value_set_object (value, get_table (text_buffer));
710 GtkTextIter start, end;
712 gtk_text_buffer_get_start_iter (text_buffer, &start);
713 gtk_text_buffer_get_end_iter (text_buffer, &end);
715 g_value_take_string (value,
716 gtk_text_buffer_get_text (text_buffer,
717 &start, &end, FALSE));
721 case PROP_HAS_SELECTION:
722 g_value_set_boolean (value, text_buffer->priv->has_selection);
725 case PROP_CURSOR_POSITION:
726 gtk_text_buffer_get_iter_at_mark (text_buffer, &iter,
727 gtk_text_buffer_get_insert (text_buffer));
728 g_value_set_int (value, gtk_text_iter_get_offset (&iter));
731 case PROP_COPY_TARGET_LIST:
732 g_value_set_boxed (value, gtk_text_buffer_get_copy_target_list (text_buffer));
735 case PROP_PASTE_TARGET_LIST:
736 g_value_set_boxed (value, gtk_text_buffer_get_paste_target_list (text_buffer));
740 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
746 gtk_text_buffer_notify (GObject *object,
749 if (!strcmp (pspec->name, "copy-target-list") ||
750 !strcmp (pspec->name, "paste-target-list"))
752 gtk_text_buffer_free_target_lists (GTK_TEXT_BUFFER (object));
757 * gtk_text_buffer_new:
758 * @table: (allow-none): a tag table, or %NULL to create a new one
760 * Creates a new text buffer.
762 * Return value: a new text buffer
765 gtk_text_buffer_new (GtkTextTagTable *table)
767 GtkTextBuffer *text_buffer;
769 text_buffer = g_object_new (GTK_TYPE_TEXT_BUFFER, "tag-table", table, NULL);
775 gtk_text_buffer_finalize (GObject *object)
777 GtkTextBuffer *buffer;
778 GtkTextBufferPrivate *priv;
780 buffer = GTK_TEXT_BUFFER (object);
783 remove_all_selection_clipboards (buffer);
787 _gtk_text_tag_table_remove_buffer (priv->tag_table, buffer);
788 g_object_unref (priv->tag_table);
789 priv->tag_table = NULL;
794 _gtk_text_btree_unref (priv->btree);
798 if (priv->log_attr_cache)
799 free_log_attr_cache (priv->log_attr_cache);
801 priv->log_attr_cache = NULL;
803 gtk_text_buffer_free_target_lists (buffer);
805 G_OBJECT_CLASS (gtk_text_buffer_parent_class)->finalize (object);
809 get_btree (GtkTextBuffer *buffer)
811 GtkTextBufferPrivate *priv = buffer->priv;
813 if (priv->btree == NULL)
814 priv->btree = _gtk_text_btree_new (gtk_text_buffer_get_tag_table (buffer),
821 _gtk_text_buffer_get_btree (GtkTextBuffer *buffer)
823 return get_btree (buffer);
827 * gtk_text_buffer_get_tag_table:
828 * @buffer: a #GtkTextBuffer
830 * Get the #GtkTextTagTable associated with this buffer.
832 * Return value: (transfer none): the buffer's tag table
835 gtk_text_buffer_get_tag_table (GtkTextBuffer *buffer)
837 g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), NULL);
839 return get_table (buffer);
843 * gtk_text_buffer_set_text:
844 * @buffer: a #GtkTextBuffer
845 * @text: UTF-8 text to insert
846 * @len: length of @text in bytes
848 * Deletes current contents of @buffer, and inserts @text instead. If
849 * @len is -1, @text must be nul-terminated. @text must be valid UTF-8.
852 gtk_text_buffer_set_text (GtkTextBuffer *buffer,
856 GtkTextIter start, end;
858 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
859 g_return_if_fail (text != NULL);
864 gtk_text_buffer_get_bounds (buffer, &start, &end);
866 gtk_text_buffer_delete (buffer, &start, &end);
870 gtk_text_buffer_get_iter_at_offset (buffer, &start, 0);
871 gtk_text_buffer_insert (buffer, &start, text, len);
874 g_object_notify (G_OBJECT (buffer), "text");
884 gtk_text_buffer_real_insert_text (GtkTextBuffer *buffer,
889 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
890 g_return_if_fail (iter != NULL);
892 _gtk_text_btree_insert (iter, text, len);
894 g_signal_emit (buffer, signals[CHANGED], 0);
895 g_object_notify (G_OBJECT (buffer), "cursor-position");
899 gtk_text_buffer_emit_insert (GtkTextBuffer *buffer,
904 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
905 g_return_if_fail (iter != NULL);
906 g_return_if_fail (text != NULL);
911 g_return_if_fail (g_utf8_validate (text, len, NULL));
915 g_signal_emit (buffer, signals[INSERT_TEXT], 0,
921 * gtk_text_buffer_insert:
922 * @buffer: a #GtkTextBuffer
923 * @iter: a position in the buffer
924 * @text: UTF-8 format text to insert
925 * @len: length of text in bytes, or -1
927 * Inserts @len bytes of @text at position @iter. If @len is -1,
928 * @text must be nul-terminated and will be inserted in its
929 * entirety. Emits the "insert-text" signal; insertion actually occurs
930 * in the default handler for the signal. @iter is invalidated when
931 * insertion occurs (because the buffer contents change), but the
932 * default signal handler revalidates it to point to the end of the
936 gtk_text_buffer_insert (GtkTextBuffer *buffer,
941 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
942 g_return_if_fail (iter != NULL);
943 g_return_if_fail (text != NULL);
944 g_return_if_fail (gtk_text_iter_get_buffer (iter) == buffer);
946 gtk_text_buffer_emit_insert (buffer, iter, text, len);
950 * gtk_text_buffer_insert_at_cursor:
951 * @buffer: a #GtkTextBuffer
952 * @text: some text in UTF-8 format
953 * @len: length of text, in bytes
955 * Simply calls gtk_text_buffer_insert(), using the current
956 * cursor position as the insertion point.
959 gtk_text_buffer_insert_at_cursor (GtkTextBuffer *buffer,
965 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
966 g_return_if_fail (text != NULL);
968 gtk_text_buffer_get_iter_at_mark (buffer, &iter,
969 gtk_text_buffer_get_insert (buffer));
971 gtk_text_buffer_insert (buffer, &iter, text, len);
975 * gtk_text_buffer_insert_interactive:
976 * @buffer: a #GtkTextBuffer
977 * @iter: a position in @buffer
978 * @text: some UTF-8 text
979 * @len: length of text in bytes, or -1
980 * @default_editable: default editability of buffer
982 * Like gtk_text_buffer_insert(), but the insertion will not occur if
983 * @iter is at a non-editable location in the buffer. Usually you
984 * want to prevent insertions at ineditable locations if the insertion
985 * results from a user action (is interactive).
987 * @default_editable indicates the editability of text that doesn't
988 * have a tag affecting editability applied to it. Typically the
989 * result of gtk_text_view_get_editable() is appropriate here.
991 * Return value: whether text was actually inserted
994 gtk_text_buffer_insert_interactive (GtkTextBuffer *buffer,
998 gboolean default_editable)
1000 g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), FALSE);
1001 g_return_val_if_fail (text != NULL, FALSE);
1002 g_return_val_if_fail (gtk_text_iter_get_buffer (iter) == buffer, FALSE);
1004 if (gtk_text_iter_can_insert (iter, default_editable))
1006 gtk_text_buffer_begin_user_action (buffer);
1007 gtk_text_buffer_emit_insert (buffer, iter, text, len);
1008 gtk_text_buffer_end_user_action (buffer);
1016 * gtk_text_buffer_insert_interactive_at_cursor:
1017 * @buffer: a #GtkTextBuffer
1018 * @text: text in UTF-8 format
1019 * @len: length of text in bytes, or -1
1020 * @default_editable: default editability of buffer
1022 * Calls gtk_text_buffer_insert_interactive() at the cursor
1025 * @default_editable indicates the editability of text that doesn't
1026 * have a tag affecting editability applied to it. Typically the
1027 * result of gtk_text_view_get_editable() is appropriate here.
1029 * Return value: whether text was actually inserted
1032 gtk_text_buffer_insert_interactive_at_cursor (GtkTextBuffer *buffer,
1035 gboolean default_editable)
1039 g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), FALSE);
1040 g_return_val_if_fail (text != NULL, FALSE);
1042 gtk_text_buffer_get_iter_at_mark (buffer, &iter,
1043 gtk_text_buffer_get_insert (buffer));
1045 return gtk_text_buffer_insert_interactive (buffer, &iter, text, len,
1050 possibly_not_text (gunichar ch,
1053 return ch == GTK_TEXT_UNKNOWN_CHAR;
1057 insert_text_range (GtkTextBuffer *buffer,
1059 const GtkTextIter *orig_start,
1060 const GtkTextIter *orig_end,
1061 gboolean interactive)
1065 text = gtk_text_iter_get_text (orig_start, orig_end);
1067 gtk_text_buffer_emit_insert (buffer, iter, text, -1);
1072 typedef struct _Range Range;
1075 GtkTextBuffer *buffer;
1076 GtkTextMark *start_mark;
1077 GtkTextMark *end_mark;
1078 GtkTextMark *whole_end_mark;
1079 GtkTextIter *range_start;
1080 GtkTextIter *range_end;
1081 GtkTextIter *whole_end;
1085 save_range (GtkTextIter *range_start,
1086 GtkTextIter *range_end,
1087 GtkTextIter *whole_end)
1091 r = g_new (Range, 1);
1093 r->buffer = gtk_text_iter_get_buffer (range_start);
1094 g_object_ref (r->buffer);
1097 gtk_text_buffer_create_mark (gtk_text_iter_get_buffer (range_start),
1102 gtk_text_buffer_create_mark (gtk_text_iter_get_buffer (range_start),
1108 gtk_text_buffer_create_mark (gtk_text_iter_get_buffer (range_start),
1113 r->range_start = range_start;
1114 r->range_end = range_end;
1115 r->whole_end = whole_end;
1121 restore_range (Range *r)
1123 gtk_text_buffer_get_iter_at_mark (r->buffer,
1127 gtk_text_buffer_get_iter_at_mark (r->buffer,
1131 gtk_text_buffer_get_iter_at_mark (r->buffer,
1135 gtk_text_buffer_delete_mark (r->buffer, r->start_mark);
1136 gtk_text_buffer_delete_mark (r->buffer, r->end_mark);
1137 gtk_text_buffer_delete_mark (r->buffer, r->whole_end_mark);
1139 /* Due to the gravities on the marks, the ordering could have
1140 * gotten mangled; we switch to an empty range in that
1144 if (gtk_text_iter_compare (r->range_start, r->range_end) > 0)
1145 *r->range_start = *r->range_end;
1147 if (gtk_text_iter_compare (r->range_end, r->whole_end) > 0)
1148 *r->range_end = *r->whole_end;
1150 g_object_unref (r->buffer);
1155 insert_range_untagged (GtkTextBuffer *buffer,
1157 const GtkTextIter *orig_start,
1158 const GtkTextIter *orig_end,
1159 gboolean interactive)
1161 GtkTextIter range_start;
1162 GtkTextIter range_end;
1163 GtkTextIter start, end;
1166 if (gtk_text_iter_equal (orig_start, orig_end))
1169 start = *orig_start;
1172 range_start = start;
1177 if (gtk_text_iter_equal (&range_start, &range_end))
1179 /* Figure out how to move forward */
1181 g_assert (gtk_text_iter_compare (&range_end, &end) <= 0);
1183 if (gtk_text_iter_equal (&range_end, &end))
1185 /* nothing left to do */
1188 else if (gtk_text_iter_get_char (&range_end) == GTK_TEXT_UNKNOWN_CHAR)
1190 GdkPixbuf *pixbuf = NULL;
1191 GtkTextChildAnchor *anchor = NULL;
1192 pixbuf = gtk_text_iter_get_pixbuf (&range_end);
1193 anchor = gtk_text_iter_get_child_anchor (&range_end);
1197 r = save_range (&range_start,
1201 gtk_text_buffer_insert_pixbuf (buffer,
1208 gtk_text_iter_forward_char (&range_end);
1210 range_start = range_end;
1214 /* Just skip anchors */
1216 gtk_text_iter_forward_char (&range_end);
1217 range_start = range_end;
1221 /* The GTK_TEXT_UNKNOWN_CHAR was in a text segment, so
1224 gtk_text_iter_forward_find_char (&range_end,
1225 possibly_not_text, NULL,
1228 g_assert (gtk_text_iter_compare (&range_end, &end) <= 0);
1233 /* Text segment starts here, so forward search to
1234 * find its possible endpoint
1236 gtk_text_iter_forward_find_char (&range_end,
1237 possibly_not_text, NULL,
1240 g_assert (gtk_text_iter_compare (&range_end, &end) <= 0);
1245 r = save_range (&range_start,
1249 insert_text_range (buffer,
1258 range_start = range_end;
1264 insert_range_not_inside_self (GtkTextBuffer *buffer,
1266 const GtkTextIter *orig_start,
1267 const GtkTextIter *orig_end,
1268 gboolean interactive)
1270 /* Find each range of uniformly-tagged text, insert it,
1271 * then apply the tags.
1273 GtkTextIter start = *orig_start;
1274 GtkTextIter end = *orig_end;
1275 GtkTextIter range_start;
1276 GtkTextIter range_end;
1278 if (gtk_text_iter_equal (orig_start, orig_end))
1281 gtk_text_iter_order (&start, &end);
1283 range_start = start;
1289 GtkTextIter start_iter;
1294 if (gtk_text_iter_equal (&range_start, &end))
1295 break; /* All done */
1297 g_assert (gtk_text_iter_compare (&range_start, &end) < 0);
1299 gtk_text_iter_forward_to_tag_toggle (&range_end, NULL);
1301 g_assert (!gtk_text_iter_equal (&range_start, &range_end));
1303 /* Clamp to the end iterator */
1304 if (gtk_text_iter_compare (&range_end, &end) > 0)
1307 /* We have a range with unique tags; insert it, and
1310 start_offset = gtk_text_iter_get_offset (iter);
1312 r = save_range (&range_start, &range_end, &end);
1314 insert_range_untagged (buffer, iter, &range_start, &range_end, interactive);
1319 gtk_text_buffer_get_iter_at_offset (buffer, &start_iter, start_offset);
1321 tags = gtk_text_iter_get_tags (&range_start);
1323 while (tmp_list != NULL)
1325 gtk_text_buffer_apply_tag (buffer,
1330 tmp_list = g_slist_next (tmp_list);
1332 g_slist_free (tags);
1334 range_start = range_end;
1339 gtk_text_buffer_real_insert_range (GtkTextBuffer *buffer,
1341 const GtkTextIter *orig_start,
1342 const GtkTextIter *orig_end,
1343 gboolean interactive)
1345 GtkTextBuffer *src_buffer;
1347 /* Find each range of uniformly-tagged text, insert it,
1348 * then apply the tags.
1350 if (gtk_text_iter_equal (orig_start, orig_end))
1354 gtk_text_buffer_begin_user_action (buffer);
1356 src_buffer = gtk_text_iter_get_buffer (orig_start);
1358 if (gtk_text_iter_get_buffer (iter) != src_buffer ||
1359 !gtk_text_iter_in_range (iter, orig_start, orig_end))
1361 insert_range_not_inside_self (buffer, iter, orig_start, orig_end, interactive);
1365 /* If you insert a range into itself, it could loop infinitely
1366 * because the region being copied keeps growing as we insert. So
1367 * we have to separately copy the range before and after
1368 * the insertion point.
1370 GtkTextIter start = *orig_start;
1371 GtkTextIter end = *orig_end;
1372 GtkTextIter range_start;
1373 GtkTextIter range_end;
1377 gtk_text_iter_order (&start, &end);
1379 range_start = start;
1381 first_half = save_range (&range_start, &range_end, &end);
1383 range_start = *iter;
1385 second_half = save_range (&range_start, &range_end, &end);
1387 restore_range (first_half);
1388 insert_range_not_inside_self (buffer, iter, &range_start, &range_end, interactive);
1390 restore_range (second_half);
1391 insert_range_not_inside_self (buffer, iter, &range_start, &range_end, interactive);
1395 gtk_text_buffer_end_user_action (buffer);
1399 * gtk_text_buffer_insert_range:
1400 * @buffer: a #GtkTextBuffer
1401 * @iter: a position in @buffer
1402 * @start: a position in a #GtkTextBuffer
1403 * @end: another position in the same buffer as @start
1405 * Copies text, tags, and pixbufs between @start and @end (the order
1406 * of @start and @end doesn't matter) and inserts the copy at @iter.
1407 * Used instead of simply getting/inserting text because it preserves
1408 * images and tags. If @start and @end are in a different buffer from
1409 * @buffer, the two buffers must share the same tag table.
1411 * Implemented via emissions of the insert_text and apply_tag signals,
1415 gtk_text_buffer_insert_range (GtkTextBuffer *buffer,
1417 const GtkTextIter *start,
1418 const GtkTextIter *end)
1420 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
1421 g_return_if_fail (iter != NULL);
1422 g_return_if_fail (start != NULL);
1423 g_return_if_fail (end != NULL);
1424 g_return_if_fail (gtk_text_iter_get_buffer (start) ==
1425 gtk_text_iter_get_buffer (end));
1426 g_return_if_fail (gtk_text_iter_get_buffer (start)->priv->tag_table ==
1427 buffer->priv->tag_table);
1428 g_return_if_fail (gtk_text_iter_get_buffer (iter) == buffer);
1430 gtk_text_buffer_real_insert_range (buffer, iter, start, end, FALSE);
1434 * gtk_text_buffer_insert_range_interactive:
1435 * @buffer: a #GtkTextBuffer
1436 * @iter: a position in @buffer
1437 * @start: a position in a #GtkTextBuffer
1438 * @end: another position in the same buffer as @start
1439 * @default_editable: default editability of the buffer
1441 * Same as gtk_text_buffer_insert_range(), but does nothing if the
1442 * insertion point isn't editable. The @default_editable parameter
1443 * indicates whether the text is editable at @iter if no tags
1444 * enclosing @iter affect editability. Typically the result of
1445 * gtk_text_view_get_editable() is appropriate here.
1447 * Returns: whether an insertion was possible at @iter
1450 gtk_text_buffer_insert_range_interactive (GtkTextBuffer *buffer,
1452 const GtkTextIter *start,
1453 const GtkTextIter *end,
1454 gboolean default_editable)
1456 g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), FALSE);
1457 g_return_val_if_fail (iter != NULL, FALSE);
1458 g_return_val_if_fail (start != NULL, FALSE);
1459 g_return_val_if_fail (end != NULL, FALSE);
1460 g_return_val_if_fail (gtk_text_iter_get_buffer (start) ==
1461 gtk_text_iter_get_buffer (end), FALSE);
1462 g_return_val_if_fail (gtk_text_iter_get_buffer (start)->priv->tag_table ==
1463 buffer->priv->tag_table, FALSE);
1465 if (gtk_text_iter_can_insert (iter, default_editable))
1467 gtk_text_buffer_real_insert_range (buffer, iter, start, end, TRUE);
1475 * gtk_text_buffer_insert_with_tags:
1476 * @buffer: a #GtkTextBuffer
1477 * @iter: an iterator in @buffer
1479 * @len: length of @text, or -1
1480 * @first_tag: first tag to apply to @text
1481 * @Varargs: NULL-terminated list of tags to apply
1483 * Inserts @text into @buffer at @iter, applying the list of tags to
1484 * the newly-inserted text. The last tag specified must be NULL to
1485 * terminate the list. Equivalent to calling gtk_text_buffer_insert(),
1486 * then gtk_text_buffer_apply_tag() on the inserted text;
1487 * gtk_text_buffer_insert_with_tags() is just a convenience function.
1490 gtk_text_buffer_insert_with_tags (GtkTextBuffer *buffer,
1494 GtkTextTag *first_tag,
1502 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
1503 g_return_if_fail (iter != NULL);
1504 g_return_if_fail (text != NULL);
1505 g_return_if_fail (gtk_text_iter_get_buffer (iter) == buffer);
1507 start_offset = gtk_text_iter_get_offset (iter);
1509 gtk_text_buffer_insert (buffer, iter, text, len);
1511 if (first_tag == NULL)
1514 gtk_text_buffer_get_iter_at_offset (buffer, &start, start_offset);
1516 va_start (args, first_tag);
1520 gtk_text_buffer_apply_tag (buffer, tag, &start, iter);
1522 tag = va_arg (args, GtkTextTag*);
1529 * gtk_text_buffer_insert_with_tags_by_name:
1530 * @buffer: a #GtkTextBuffer
1531 * @iter: position in @buffer
1533 * @len: length of @text, or -1
1534 * @first_tag_name: name of a tag to apply to @text
1535 * @Varargs: more tag names
1537 * Same as gtk_text_buffer_insert_with_tags(), but allows you
1538 * to pass in tag names instead of tag objects.
1541 gtk_text_buffer_insert_with_tags_by_name (GtkTextBuffer *buffer,
1545 const gchar *first_tag_name,
1551 const gchar *tag_name;
1553 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
1554 g_return_if_fail (iter != NULL);
1555 g_return_if_fail (text != NULL);
1556 g_return_if_fail (gtk_text_iter_get_buffer (iter) == buffer);
1558 start_offset = gtk_text_iter_get_offset (iter);
1560 gtk_text_buffer_insert (buffer, iter, text, len);
1562 if (first_tag_name == NULL)
1565 gtk_text_buffer_get_iter_at_offset (buffer, &start, start_offset);
1567 va_start (args, first_tag_name);
1568 tag_name = first_tag_name;
1573 tag = gtk_text_tag_table_lookup (buffer->priv->tag_table,
1578 g_warning ("%s: no tag with name '%s'!", G_STRLOC, tag_name);
1583 gtk_text_buffer_apply_tag (buffer, tag, &start, iter);
1585 tag_name = va_arg (args, const gchar*);
1597 gtk_text_buffer_real_delete_range (GtkTextBuffer *buffer,
1601 gboolean has_selection;
1603 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
1604 g_return_if_fail (start != NULL);
1605 g_return_if_fail (end != NULL);
1607 _gtk_text_btree_delete (start, end);
1609 /* may have deleted the selection... */
1610 update_selection_clipboards (buffer);
1612 has_selection = gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL);
1613 if (has_selection != buffer->priv->has_selection)
1615 buffer->priv->has_selection = has_selection;
1616 g_object_notify (G_OBJECT (buffer), "has-selection");
1619 g_signal_emit (buffer, signals[CHANGED], 0);
1620 g_object_notify (G_OBJECT (buffer), "cursor-position");
1624 gtk_text_buffer_emit_delete (GtkTextBuffer *buffer,
1628 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
1629 g_return_if_fail (start != NULL);
1630 g_return_if_fail (end != NULL);
1632 if (gtk_text_iter_equal (start, end))
1635 gtk_text_iter_order (start, end);
1637 g_signal_emit (buffer,
1638 signals[DELETE_RANGE],
1644 * gtk_text_buffer_delete:
1645 * @buffer: a #GtkTextBuffer
1646 * @start: a position in @buffer
1647 * @end: another position in @buffer
1649 * Deletes text between @start and @end. The order of @start and @end
1650 * is not actually relevant; gtk_text_buffer_delete() will reorder
1651 * them. This function actually emits the "delete-range" signal, and
1652 * the default handler of that signal deletes the text. Because the
1653 * buffer is modified, all outstanding iterators become invalid after
1654 * calling this function; however, the @start and @end will be
1655 * re-initialized to point to the location where text was deleted.
1658 gtk_text_buffer_delete (GtkTextBuffer *buffer,
1662 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
1663 g_return_if_fail (start != NULL);
1664 g_return_if_fail (end != NULL);
1665 g_return_if_fail (gtk_text_iter_get_buffer (start) == buffer);
1666 g_return_if_fail (gtk_text_iter_get_buffer (end) == buffer);
1668 gtk_text_buffer_emit_delete (buffer, start, end);
1672 * gtk_text_buffer_delete_interactive:
1673 * @buffer: a #GtkTextBuffer
1674 * @start_iter: start of range to delete
1675 * @end_iter: end of range
1676 * @default_editable: whether the buffer is editable by default
1678 * Deletes all <emphasis>editable</emphasis> text in the given range.
1679 * Calls gtk_text_buffer_delete() for each editable sub-range of
1680 * [@start,@end). @start and @end are revalidated to point to
1681 * the location of the last deleted range, or left untouched if
1682 * no text was deleted.
1684 * Return value: whether some text was actually deleted
1687 gtk_text_buffer_delete_interactive (GtkTextBuffer *buffer,
1688 GtkTextIter *start_iter,
1689 GtkTextIter *end_iter,
1690 gboolean default_editable)
1692 GtkTextMark *end_mark;
1693 GtkTextMark *start_mark;
1695 gboolean current_state;
1696 gboolean deleted_stuff = FALSE;
1698 /* Delete all editable text in the range start_iter, end_iter */
1700 g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), FALSE);
1701 g_return_val_if_fail (start_iter != NULL, FALSE);
1702 g_return_val_if_fail (end_iter != NULL, FALSE);
1703 g_return_val_if_fail (gtk_text_iter_get_buffer (start_iter) == buffer, FALSE);
1704 g_return_val_if_fail (gtk_text_iter_get_buffer (end_iter) == buffer, FALSE);
1707 gtk_text_buffer_begin_user_action (buffer);
1709 gtk_text_iter_order (start_iter, end_iter);
1711 start_mark = gtk_text_buffer_create_mark (buffer, NULL,
1713 end_mark = gtk_text_buffer_create_mark (buffer, NULL,
1716 gtk_text_buffer_get_iter_at_mark (buffer, &iter, start_mark);
1718 current_state = gtk_text_iter_editable (&iter, default_editable);
1723 gboolean done = FALSE;
1726 gtk_text_iter_forward_to_tag_toggle (&iter, NULL);
1728 gtk_text_buffer_get_iter_at_mark (buffer, &end, end_mark);
1730 if (gtk_text_iter_compare (&iter, &end) >= 0)
1733 iter = end; /* clamp to the last boundary */
1736 new_state = gtk_text_iter_editable (&iter, default_editable);
1738 if (current_state == new_state)
1744 /* We're ending an editable region. Delete said region. */
1747 gtk_text_buffer_get_iter_at_mark (buffer, &start, start_mark);
1749 gtk_text_buffer_emit_delete (buffer, &start, &iter);
1751 deleted_stuff = TRUE;
1753 /* revalidate user's iterators. */
1754 *start_iter = start;
1764 if (current_state && !new_state)
1766 /* End of an editable region. Delete it. */
1769 gtk_text_buffer_get_iter_at_mark (buffer, &start, start_mark);
1771 gtk_text_buffer_emit_delete (buffer, &start, &iter);
1773 /* It's more robust to ask for the state again then to assume that
1774 * we're on the next not-editable segment. We don't know what the
1775 * ::delete-range handler did.... maybe it deleted the following
1776 * not-editable segment because it was associated with the editable
1779 current_state = gtk_text_iter_editable (&iter, default_editable);
1780 deleted_stuff = TRUE;
1782 /* revalidate user's iterators. */
1783 *start_iter = start;
1788 /* We are at the start of an editable region. We won't be deleting
1789 * the previous region. Move start mark to start of this region.
1792 g_assert (!current_state && new_state);
1794 gtk_text_buffer_move_mark (buffer, start_mark, &iter);
1796 current_state = TRUE;
1803 gtk_text_buffer_delete_mark (buffer, start_mark);
1804 gtk_text_buffer_delete_mark (buffer, end_mark);
1806 gtk_text_buffer_end_user_action (buffer);
1808 return deleted_stuff;
1812 * Extracting textual buffer contents
1816 * gtk_text_buffer_get_text:
1817 * @buffer: a #GtkTextBuffer
1818 * @start: start of a range
1819 * @end: end of a range
1820 * @include_hidden_chars: whether to include invisible text
1822 * Returns the text in the range [@start,@end). Excludes undisplayed
1823 * text (text marked with tags that set the invisibility attribute) if
1824 * @include_hidden_chars is %FALSE. Does not include characters
1825 * representing embedded images, so byte and character indexes into
1826 * the returned string do <emphasis>not</emphasis> correspond to byte
1827 * and character indexes into the buffer. Contrast with
1828 * gtk_text_buffer_get_slice().
1830 * Return value: an allocated UTF-8 string
1833 gtk_text_buffer_get_text (GtkTextBuffer *buffer,
1834 const GtkTextIter *start,
1835 const GtkTextIter *end,
1836 gboolean include_hidden_chars)
1838 g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), NULL);
1839 g_return_val_if_fail (start != NULL, NULL);
1840 g_return_val_if_fail (end != NULL, NULL);
1841 g_return_val_if_fail (gtk_text_iter_get_buffer (start) == buffer, NULL);
1842 g_return_val_if_fail (gtk_text_iter_get_buffer (end) == buffer, NULL);
1844 if (include_hidden_chars)
1845 return gtk_text_iter_get_text (start, end);
1847 return gtk_text_iter_get_visible_text (start, end);
1851 * gtk_text_buffer_get_slice:
1852 * @buffer: a #GtkTextBuffer
1853 * @start: start of a range
1854 * @end: end of a range
1855 * @include_hidden_chars: whether to include invisible text
1857 * Returns the text in the range [@start,@end). Excludes undisplayed
1858 * text (text marked with tags that set the invisibility attribute) if
1859 * @include_hidden_chars is %FALSE. The returned string includes a
1860 * 0xFFFC character whenever the buffer contains
1861 * embedded images, so byte and character indexes into
1862 * the returned string <emphasis>do</emphasis> correspond to byte
1863 * and character indexes into the buffer. Contrast with
1864 * gtk_text_buffer_get_text(). Note that 0xFFFC can occur in normal
1865 * text as well, so it is not a reliable indicator that a pixbuf or
1866 * widget is in the buffer.
1868 * Return value: an allocated UTF-8 string
1871 gtk_text_buffer_get_slice (GtkTextBuffer *buffer,
1872 const GtkTextIter *start,
1873 const GtkTextIter *end,
1874 gboolean include_hidden_chars)
1876 g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), NULL);
1877 g_return_val_if_fail (start != NULL, NULL);
1878 g_return_val_if_fail (end != NULL, NULL);
1879 g_return_val_if_fail (gtk_text_iter_get_buffer (start) == buffer, NULL);
1880 g_return_val_if_fail (gtk_text_iter_get_buffer (end) == buffer, NULL);
1882 if (include_hidden_chars)
1883 return gtk_text_iter_get_slice (start, end);
1885 return gtk_text_iter_get_visible_slice (start, end);
1893 gtk_text_buffer_real_insert_pixbuf (GtkTextBuffer *buffer,
1897 _gtk_text_btree_insert_pixbuf (iter, pixbuf);
1899 g_signal_emit (buffer, signals[CHANGED], 0);
1903 * gtk_text_buffer_insert_pixbuf:
1904 * @buffer: a #GtkTextBuffer
1905 * @iter: location to insert the pixbuf
1906 * @pixbuf: a #GdkPixbuf
1908 * Inserts an image into the text buffer at @iter. The image will be
1909 * counted as one character in character counts, and when obtaining
1910 * the buffer contents as a string, will be represented by the Unicode
1911 * "object replacement character" 0xFFFC. Note that the "slice"
1912 * variants for obtaining portions of the buffer as a string include
1913 * this character for pixbufs, but the "text" variants do
1914 * not. e.g. see gtk_text_buffer_get_slice() and
1915 * gtk_text_buffer_get_text().
1918 gtk_text_buffer_insert_pixbuf (GtkTextBuffer *buffer,
1922 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
1923 g_return_if_fail (iter != NULL);
1924 g_return_if_fail (GDK_IS_PIXBUF (pixbuf));
1925 g_return_if_fail (gtk_text_iter_get_buffer (iter) == buffer);
1927 g_signal_emit (buffer, signals[INSERT_PIXBUF], 0,
1937 gtk_text_buffer_real_insert_anchor (GtkTextBuffer *buffer,
1939 GtkTextChildAnchor *anchor)
1941 _gtk_text_btree_insert_child_anchor (iter, anchor);
1943 g_signal_emit (buffer, signals[CHANGED], 0);
1947 * gtk_text_buffer_insert_child_anchor:
1948 * @buffer: a #GtkTextBuffer
1949 * @iter: location to insert the anchor
1950 * @anchor: a #GtkTextChildAnchor
1952 * Inserts a child widget anchor into the text buffer at @iter. The
1953 * anchor will be counted as one character in character counts, and
1954 * when obtaining the buffer contents as a string, will be represented
1955 * by the Unicode "object replacement character" 0xFFFC. Note that the
1956 * "slice" variants for obtaining portions of the buffer as a string
1957 * include this character for child anchors, but the "text" variants do
1958 * not. E.g. see gtk_text_buffer_get_slice() and
1959 * gtk_text_buffer_get_text(). Consider
1960 * gtk_text_buffer_create_child_anchor() as a more convenient
1961 * alternative to this function. The buffer will add a reference to
1962 * the anchor, so you can unref it after insertion.
1965 gtk_text_buffer_insert_child_anchor (GtkTextBuffer *buffer,
1967 GtkTextChildAnchor *anchor)
1969 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
1970 g_return_if_fail (iter != NULL);
1971 g_return_if_fail (GTK_IS_TEXT_CHILD_ANCHOR (anchor));
1972 g_return_if_fail (gtk_text_iter_get_buffer (iter) == buffer);
1974 g_signal_emit (buffer, signals[INSERT_CHILD_ANCHOR], 0,
1979 * gtk_text_buffer_create_child_anchor:
1980 * @buffer: a #GtkTextBuffer
1981 * @iter: location in the buffer
1983 * This is a convenience function which simply creates a child anchor
1984 * with gtk_text_child_anchor_new() and inserts it into the buffer
1985 * with gtk_text_buffer_insert_child_anchor(). The new anchor is
1986 * owned by the buffer; no reference count is returned to
1987 * the caller of gtk_text_buffer_create_child_anchor().
1989 * Return value: the created child anchor
1992 gtk_text_buffer_create_child_anchor (GtkTextBuffer *buffer,
1995 GtkTextChildAnchor *anchor;
1997 g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), NULL);
1998 g_return_val_if_fail (iter != NULL, NULL);
1999 g_return_val_if_fail (gtk_text_iter_get_buffer (iter) == buffer, NULL);
2001 anchor = gtk_text_child_anchor_new ();
2003 gtk_text_buffer_insert_child_anchor (buffer, iter, anchor);
2005 g_object_unref (anchor);
2015 gtk_text_buffer_mark_set (GtkTextBuffer *buffer,
2016 const GtkTextIter *location,
2019 /* IMO this should NOT work like insert_text and delete_range,
2020 * where the real action happens in the default handler.
2022 * The reason is that the default handler would be _required_,
2023 * i.e. the whole widget would start breaking and segfaulting if the
2024 * default handler didn't get run. So you can't really override the
2025 * default handler or stop the emission; that is, this signal is
2026 * purely for notification, and not to allow users to modify the
2030 g_object_ref (mark);
2032 g_signal_emit (buffer,
2038 g_object_unref (mark);
2042 * gtk_text_buffer_set_mark:
2043 * @buffer: a #GtkTextBuffer
2044 * @mark_name: name of the mark
2045 * @iter: location for the mark
2046 * @left_gravity: if the mark is created by this function, gravity for
2048 * @should_exist: if %TRUE, warn if the mark does not exist, and return
2051 * Move the mark to the given position, if not @should_exist,
2054 * Return value: mark
2057 gtk_text_buffer_set_mark (GtkTextBuffer *buffer,
2058 GtkTextMark *existing_mark,
2059 const gchar *mark_name,
2060 const GtkTextIter *iter,
2061 gboolean left_gravity,
2062 gboolean should_exist)
2064 GtkTextIter location;
2067 g_return_val_if_fail (gtk_text_iter_get_buffer (iter) == buffer, NULL);
2069 mark = _gtk_text_btree_set_mark (get_btree (buffer),
2076 _gtk_text_btree_get_iter_at_mark (get_btree (buffer),
2080 gtk_text_buffer_mark_set (buffer, &location, mark);
2086 * gtk_text_buffer_create_mark:
2087 * @buffer: a #GtkTextBuffer
2088 * @mark_name: (allow-none): name for mark, or %NULL
2089 * @where: location to place mark
2090 * @left_gravity: whether the mark has left gravity
2092 * Creates a mark at position @where. If @mark_name is %NULL, the mark
2093 * is anonymous; otherwise, the mark can be retrieved by name using
2094 * gtk_text_buffer_get_mark(). If a mark has left gravity, and text is
2095 * inserted at the mark's current location, the mark will be moved to
2096 * the left of the newly-inserted text. If the mark has right gravity
2097 * (@left_gravity = %FALSE), the mark will end up on the right of
2098 * newly-inserted text. The standard left-to-right cursor is a mark
2099 * with right gravity (when you type, the cursor stays on the right
2100 * side of the text you're typing).
2102 * The caller of this function does <emphasis>not</emphasis> own a
2103 * reference to the returned #GtkTextMark, so you can ignore the
2104 * return value if you like. Marks are owned by the buffer and go
2105 * away when the buffer does.
2107 * Emits the "mark-set" signal as notification of the mark's initial
2110 * Return value: (transfer none): the new #GtkTextMark object
2113 gtk_text_buffer_create_mark (GtkTextBuffer *buffer,
2114 const gchar *mark_name,
2115 const GtkTextIter *where,
2116 gboolean left_gravity)
2118 g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), NULL);
2120 return gtk_text_buffer_set_mark (buffer, NULL, mark_name, where,
2121 left_gravity, FALSE);
2125 * gtk_text_buffer_add_mark:
2126 * @buffer: a #GtkTextBuffer
2127 * @mark: the mark to add
2128 * @where: location to place mark
2130 * Adds the mark at position @where. The mark must not be added to
2131 * another buffer, and if its name is not %NULL then there must not
2132 * be another mark in the buffer with the same name.
2134 * Emits the "mark-set" signal as notification of the mark's initial
2140 gtk_text_buffer_add_mark (GtkTextBuffer *buffer,
2142 const GtkTextIter *where)
2146 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
2147 g_return_if_fail (GTK_IS_TEXT_MARK (mark));
2148 g_return_if_fail (where != NULL);
2149 g_return_if_fail (gtk_text_mark_get_buffer (mark) == NULL);
2151 name = gtk_text_mark_get_name (mark);
2153 if (name != NULL && gtk_text_buffer_get_mark (buffer, name) != NULL)
2155 g_critical ("Mark %s already exists in the buffer", name);
2159 gtk_text_buffer_set_mark (buffer, mark, NULL, where, FALSE, FALSE);
2163 * gtk_text_buffer_move_mark:
2164 * @buffer: a #GtkTextBuffer
2165 * @mark: a #GtkTextMark
2166 * @where: new location for @mark in @buffer
2168 * Moves @mark to the new location @where. Emits the "mark-set" signal
2169 * as notification of the move.
2172 gtk_text_buffer_move_mark (GtkTextBuffer *buffer,
2174 const GtkTextIter *where)
2176 g_return_if_fail (GTK_IS_TEXT_MARK (mark));
2177 g_return_if_fail (!gtk_text_mark_get_deleted (mark));
2178 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
2180 gtk_text_buffer_set_mark (buffer, mark, NULL, where, FALSE, TRUE);
2184 * gtk_text_buffer_get_iter_at_mark:
2185 * @buffer: a #GtkTextBuffer
2186 * @iter: (out): iterator to initialize
2187 * @mark: a #GtkTextMark in @buffer
2189 * Initializes @iter with the current position of @mark.
2192 gtk_text_buffer_get_iter_at_mark (GtkTextBuffer *buffer,
2196 g_return_if_fail (GTK_IS_TEXT_MARK (mark));
2197 g_return_if_fail (!gtk_text_mark_get_deleted (mark));
2198 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
2200 _gtk_text_btree_get_iter_at_mark (get_btree (buffer),
2206 * gtk_text_buffer_delete_mark:
2207 * @buffer: a #GtkTextBuffer
2208 * @mark: a #GtkTextMark in @buffer
2210 * Deletes @mark, so that it's no longer located anywhere in the
2211 * buffer. Removes the reference the buffer holds to the mark, so if
2212 * you haven't called g_object_ref() on the mark, it will be freed. Even
2213 * if the mark isn't freed, most operations on @mark become
2214 * invalid, until it gets added to a buffer again with
2215 * gtk_text_buffer_add_mark(). Use gtk_text_mark_get_deleted() to
2216 * find out if a mark has been removed from its buffer.
2217 * The "mark-deleted" signal will be emitted as notification after
2218 * the mark is deleted.
2221 gtk_text_buffer_delete_mark (GtkTextBuffer *buffer,
2224 g_return_if_fail (GTK_IS_TEXT_MARK (mark));
2225 g_return_if_fail (!gtk_text_mark_get_deleted (mark));
2226 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
2228 g_object_ref (mark);
2230 _gtk_text_btree_remove_mark (get_btree (buffer), mark);
2232 /* See rationale above for MARK_SET on why we emit this after
2233 * removing the mark, rather than removing the mark in a default
2236 g_signal_emit (buffer, signals[MARK_DELETED],
2240 g_object_unref (mark);
2244 * gtk_text_buffer_get_mark:
2245 * @buffer: a #GtkTextBuffer
2246 * @name: a mark name
2248 * Returns the mark named @name in buffer @buffer, or %NULL if no such
2249 * mark exists in the buffer.
2251 * Return value: (transfer none): a #GtkTextMark, or %NULL
2254 gtk_text_buffer_get_mark (GtkTextBuffer *buffer,
2259 g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), NULL);
2260 g_return_val_if_fail (name != NULL, NULL);
2262 mark = _gtk_text_btree_get_mark_by_name (get_btree (buffer), name);
2268 * gtk_text_buffer_move_mark_by_name:
2269 * @buffer: a #GtkTextBuffer
2270 * @name: name of a mark
2271 * @where: new location for mark
2273 * Moves the mark named @name (which must exist) to location @where.
2274 * See gtk_text_buffer_move_mark() for details.
2277 gtk_text_buffer_move_mark_by_name (GtkTextBuffer *buffer,
2279 const GtkTextIter *where)
2283 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
2284 g_return_if_fail (name != NULL);
2286 mark = _gtk_text_btree_get_mark_by_name (get_btree (buffer), name);
2290 g_warning ("%s: no mark named '%s'", G_STRLOC, name);
2294 gtk_text_buffer_move_mark (buffer, mark, where);
2298 * gtk_text_buffer_delete_mark_by_name:
2299 * @buffer: a #GtkTextBuffer
2300 * @name: name of a mark in @buffer
2302 * Deletes the mark named @name; the mark must exist. See
2303 * gtk_text_buffer_delete_mark() for details.
2306 gtk_text_buffer_delete_mark_by_name (GtkTextBuffer *buffer,
2311 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
2312 g_return_if_fail (name != NULL);
2314 mark = _gtk_text_btree_get_mark_by_name (get_btree (buffer), name);
2318 g_warning ("%s: no mark named '%s'", G_STRLOC, name);
2322 gtk_text_buffer_delete_mark (buffer, mark);
2326 * gtk_text_buffer_get_insert:
2327 * @buffer: a #GtkTextBuffer
2329 * Returns the mark that represents the cursor (insertion point).
2330 * Equivalent to calling gtk_text_buffer_get_mark() to get the mark
2331 * named "insert", but very slightly more efficient, and involves less
2334 * Return value: (transfer none): insertion point mark
2337 gtk_text_buffer_get_insert (GtkTextBuffer *buffer)
2339 g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), NULL);
2341 return _gtk_text_btree_get_insert (get_btree (buffer));
2345 * gtk_text_buffer_get_selection_bound:
2346 * @buffer: a #GtkTextBuffer
2348 * Returns the mark that represents the selection bound. Equivalent
2349 * to calling gtk_text_buffer_get_mark() to get the mark named
2350 * "selection_bound", but very slightly more efficient, and involves
2353 * The currently-selected text in @buffer is the region between the
2354 * "selection_bound" and "insert" marks. If "selection_bound" and
2355 * "insert" are in the same place, then there is no current selection.
2356 * gtk_text_buffer_get_selection_bounds() is another convenient function
2357 * for handling the selection, if you just want to know whether there's a
2358 * selection and what its bounds are.
2360 * Return value: (transfer none): selection bound mark
2363 gtk_text_buffer_get_selection_bound (GtkTextBuffer *buffer)
2365 g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), NULL);
2367 return _gtk_text_btree_get_selection_bound (get_btree (buffer));
2371 * gtk_text_buffer_get_iter_at_child_anchor:
2372 * @buffer: a #GtkTextBuffer
2373 * @iter: (out): an iterator to be initialized
2374 * @anchor: a child anchor that appears in @buffer
2376 * Obtains the location of @anchor within @buffer.
2379 gtk_text_buffer_get_iter_at_child_anchor (GtkTextBuffer *buffer,
2381 GtkTextChildAnchor *anchor)
2383 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
2384 g_return_if_fail (iter != NULL);
2385 g_return_if_fail (GTK_IS_TEXT_CHILD_ANCHOR (anchor));
2386 g_return_if_fail (!gtk_text_child_anchor_get_deleted (anchor));
2388 _gtk_text_btree_get_iter_at_child_anchor (get_btree (buffer),
2394 * gtk_text_buffer_place_cursor:
2395 * @buffer: a #GtkTextBuffer
2396 * @where: where to put the cursor
2398 * This function moves the "insert" and "selection_bound" marks
2399 * simultaneously. If you move them to the same place in two steps
2400 * with gtk_text_buffer_move_mark(), you will temporarily select a
2401 * region in between their old and new locations, which can be pretty
2402 * inefficient since the temporarily-selected region will force stuff
2403 * to be recalculated. This function moves them as a unit, which can
2407 gtk_text_buffer_place_cursor (GtkTextBuffer *buffer,
2408 const GtkTextIter *where)
2410 gtk_text_buffer_select_range (buffer, where, where);
2414 * gtk_text_buffer_select_range:
2415 * @buffer: a #GtkTextBuffer
2416 * @ins: where to put the "insert" mark
2417 * @bound: where to put the "selection_bound" mark
2419 * This function moves the "insert" and "selection_bound" marks
2420 * simultaneously. If you move them in two steps
2421 * with gtk_text_buffer_move_mark(), you will temporarily select a
2422 * region in between their old and new locations, which can be pretty
2423 * inefficient since the temporarily-selected region will force stuff
2424 * to be recalculated. This function moves them as a unit, which can
2430 gtk_text_buffer_select_range (GtkTextBuffer *buffer,
2431 const GtkTextIter *ins,
2432 const GtkTextIter *bound)
2434 GtkTextIter real_ins;
2435 GtkTextIter real_bound;
2437 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
2440 real_bound = *bound;
2442 _gtk_text_btree_select_range (get_btree (buffer), &real_ins, &real_bound);
2443 gtk_text_buffer_mark_set (buffer, &real_ins,
2444 gtk_text_buffer_get_insert (buffer));
2445 gtk_text_buffer_mark_set (buffer, &real_bound,
2446 gtk_text_buffer_get_selection_bound (buffer));
2454 * gtk_text_buffer_create_tag:
2455 * @buffer: a #GtkTextBuffer
2456 * @tag_name: (allow-none): name of the new tag, or %NULL
2457 * @first_property_name: (allow-none): name of first property to set, or %NULL
2458 * @Varargs: %NULL-terminated list of property names and values
2461 * Creates a tag and adds it to the tag table for @buffer.
2462 * Equivalent to calling gtk_text_tag_new() and then adding the
2463 * tag to the buffer's tag table. The returned tag is owned by
2464 * the buffer's tag table, so the ref count will be equal to one.
2466 * If @tag_name is %NULL, the tag is anonymous.
2468 * If @tag_name is non-%NULL, a tag called @tag_name must not already
2469 * exist in the tag table for this buffer.
2471 * The @first_property_name argument and subsequent arguments are a list
2472 * of properties to set on the tag, as with g_object_set().
2474 * Return value: a new tag
2477 gtk_text_buffer_create_tag (GtkTextBuffer *buffer,
2478 const gchar *tag_name,
2479 const gchar *first_property_name,
2485 g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), NULL);
2487 tag = gtk_text_tag_new (tag_name);
2489 gtk_text_tag_table_add (get_table (buffer), tag);
2491 if (first_property_name)
2493 va_start (list, first_property_name);
2494 g_object_set_valist (G_OBJECT (tag), first_property_name, list);
2498 g_object_unref (tag);
2504 gtk_text_buffer_real_apply_tag (GtkTextBuffer *buffer,
2506 const GtkTextIter *start,
2507 const GtkTextIter *end)
2509 if (tag->table != buffer->priv->tag_table)
2511 g_warning ("Can only apply tags that are in the tag table for the buffer");
2515 _gtk_text_btree_tag (start, end, tag, TRUE);
2519 gtk_text_buffer_real_remove_tag (GtkTextBuffer *buffer,
2521 const GtkTextIter *start,
2522 const GtkTextIter *end)
2524 if (tag->table != buffer->priv->tag_table)
2526 g_warning ("Can only remove tags that are in the tag table for the buffer");
2530 _gtk_text_btree_tag (start, end, tag, FALSE);
2534 gtk_text_buffer_real_changed (GtkTextBuffer *buffer)
2536 gtk_text_buffer_set_modified (buffer, TRUE);
2540 gtk_text_buffer_real_mark_set (GtkTextBuffer *buffer,
2541 const GtkTextIter *iter,
2544 GtkTextMark *insert;
2546 insert = gtk_text_buffer_get_insert (buffer);
2548 if (mark == insert || mark == gtk_text_buffer_get_selection_bound (buffer))
2550 gboolean has_selection;
2552 update_selection_clipboards (buffer);
2554 has_selection = gtk_text_buffer_get_selection_bounds (buffer,
2558 if (has_selection != buffer->priv->has_selection)
2560 buffer->priv->has_selection = has_selection;
2561 g_object_notify (G_OBJECT (buffer), "has-selection");
2566 g_object_notify (G_OBJECT (buffer), "cursor-position");
2570 gtk_text_buffer_emit_tag (GtkTextBuffer *buffer,
2573 const GtkTextIter *start,
2574 const GtkTextIter *end)
2576 GtkTextIter start_tmp = *start;
2577 GtkTextIter end_tmp = *end;
2579 g_return_if_fail (tag != NULL);
2581 gtk_text_iter_order (&start_tmp, &end_tmp);
2584 g_signal_emit (buffer, signals[APPLY_TAG],
2586 tag, &start_tmp, &end_tmp);
2588 g_signal_emit (buffer, signals[REMOVE_TAG],
2590 tag, &start_tmp, &end_tmp);
2594 * gtk_text_buffer_apply_tag:
2595 * @buffer: a #GtkTextBuffer
2596 * @tag: a #GtkTextTag
2597 * @start: one bound of range to be tagged
2598 * @end: other bound of range to be tagged
2600 * Emits the "apply-tag" signal on @buffer. The default
2601 * handler for the signal applies @tag to the given range.
2602 * @start and @end do not have to be in order.
2605 gtk_text_buffer_apply_tag (GtkTextBuffer *buffer,
2607 const GtkTextIter *start,
2608 const GtkTextIter *end)
2610 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
2611 g_return_if_fail (GTK_IS_TEXT_TAG (tag));
2612 g_return_if_fail (start != NULL);
2613 g_return_if_fail (end != NULL);
2614 g_return_if_fail (gtk_text_iter_get_buffer (start) == buffer);
2615 g_return_if_fail (gtk_text_iter_get_buffer (end) == buffer);
2616 g_return_if_fail (tag->table == buffer->priv->tag_table);
2618 gtk_text_buffer_emit_tag (buffer, tag, TRUE, start, end);
2622 * gtk_text_buffer_remove_tag:
2623 * @buffer: a #GtkTextBuffer
2624 * @tag: a #GtkTextTag
2625 * @start: one bound of range to be untagged
2626 * @end: other bound of range to be untagged
2628 * Emits the "remove-tag" signal. The default handler for the signal
2629 * removes all occurrences of @tag from the given range. @start and
2630 * @end don't have to be in order.
2633 gtk_text_buffer_remove_tag (GtkTextBuffer *buffer,
2635 const GtkTextIter *start,
2636 const GtkTextIter *end)
2639 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
2640 g_return_if_fail (GTK_IS_TEXT_TAG (tag));
2641 g_return_if_fail (start != NULL);
2642 g_return_if_fail (end != NULL);
2643 g_return_if_fail (gtk_text_iter_get_buffer (start) == buffer);
2644 g_return_if_fail (gtk_text_iter_get_buffer (end) == buffer);
2645 g_return_if_fail (tag->table == buffer->priv->tag_table);
2647 gtk_text_buffer_emit_tag (buffer, tag, FALSE, start, end);
2651 * gtk_text_buffer_apply_tag_by_name:
2652 * @buffer: a #GtkTextBuffer
2653 * @name: name of a named #GtkTextTag
2654 * @start: one bound of range to be tagged
2655 * @end: other bound of range to be tagged
2657 * Calls gtk_text_tag_table_lookup() on the buffer's tag table to
2658 * get a #GtkTextTag, then calls gtk_text_buffer_apply_tag().
2661 gtk_text_buffer_apply_tag_by_name (GtkTextBuffer *buffer,
2663 const GtkTextIter *start,
2664 const GtkTextIter *end)
2668 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
2669 g_return_if_fail (name != NULL);
2670 g_return_if_fail (start != NULL);
2671 g_return_if_fail (end != NULL);
2672 g_return_if_fail (gtk_text_iter_get_buffer (start) == buffer);
2673 g_return_if_fail (gtk_text_iter_get_buffer (end) == buffer);
2675 tag = gtk_text_tag_table_lookup (get_table (buffer),
2680 g_warning ("Unknown tag `%s'", name);
2684 gtk_text_buffer_emit_tag (buffer, tag, TRUE, start, end);
2688 * gtk_text_buffer_remove_tag_by_name:
2689 * @buffer: a #GtkTextBuffer
2690 * @name: name of a #GtkTextTag
2691 * @start: one bound of range to be untagged
2692 * @end: other bound of range to be untagged
2694 * Calls gtk_text_tag_table_lookup() on the buffer's tag table to
2695 * get a #GtkTextTag, then calls gtk_text_buffer_remove_tag().
2698 gtk_text_buffer_remove_tag_by_name (GtkTextBuffer *buffer,
2700 const GtkTextIter *start,
2701 const GtkTextIter *end)
2705 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
2706 g_return_if_fail (name != NULL);
2707 g_return_if_fail (start != NULL);
2708 g_return_if_fail (end != NULL);
2709 g_return_if_fail (gtk_text_iter_get_buffer (start) == buffer);
2710 g_return_if_fail (gtk_text_iter_get_buffer (end) == buffer);
2712 tag = gtk_text_tag_table_lookup (get_table (buffer),
2717 g_warning ("Unknown tag `%s'", name);
2721 gtk_text_buffer_emit_tag (buffer, tag, FALSE, start, end);
2725 pointer_cmp (gconstpointer a,
2737 * gtk_text_buffer_remove_all_tags:
2738 * @buffer: a #GtkTextBuffer
2739 * @start: one bound of range to be untagged
2740 * @end: other bound of range to be untagged
2742 * Removes all tags in the range between @start and @end. Be careful
2743 * with this function; it could remove tags added in code unrelated to
2744 * the code you're currently writing. That is, using this function is
2745 * probably a bad idea if you have two or more unrelated code sections
2749 gtk_text_buffer_remove_all_tags (GtkTextBuffer *buffer,
2750 const GtkTextIter *start,
2751 const GtkTextIter *end)
2753 GtkTextIter first, second, tmp;
2756 GSList *prev, *next;
2759 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
2760 g_return_if_fail (start != NULL);
2761 g_return_if_fail (end != NULL);
2762 g_return_if_fail (gtk_text_iter_get_buffer (start) == buffer);
2763 g_return_if_fail (gtk_text_iter_get_buffer (end) == buffer);
2768 gtk_text_iter_order (&first, &second);
2770 /* Get all tags turned on at the start */
2771 tags = gtk_text_iter_get_tags (&first);
2773 /* Find any that are toggled on within the range */
2775 while (gtk_text_iter_forward_to_tag_toggle (&tmp, NULL))
2780 if (gtk_text_iter_compare (&tmp, &second) >= 0)
2781 break; /* past the end of the range */
2783 toggled = gtk_text_iter_get_toggled_tags (&tmp, TRUE);
2785 /* We could end up with a really big-ass list here.
2788 tmp_list2 = toggled;
2789 while (tmp_list2 != NULL)
2791 tags = g_slist_prepend (tags, tmp_list2->data);
2793 tmp_list2 = g_slist_next (tmp_list2);
2796 g_slist_free (toggled);
2800 tags = g_slist_sort (tags, pointer_cmp);
2802 /* Strip duplicates */
2806 while (tmp_list != NULL)
2808 if (tag == tmp_list->data)
2811 next = tmp_list->next;
2815 tmp_list->next = NULL;
2817 g_slist_free (tmp_list);
2820 /* prev is unchanged */
2824 /* not a duplicate */
2825 tag = GTK_TEXT_TAG (tmp_list->data);
2827 tmp_list = tmp_list->next;
2831 g_slist_foreach (tags, (GFunc) g_object_ref, NULL);
2834 while (tmp_list != NULL)
2836 tag = GTK_TEXT_TAG (tmp_list->data);
2838 gtk_text_buffer_remove_tag (buffer, tag, &first, &second);
2840 tmp_list = tmp_list->next;
2843 g_slist_foreach (tags, (GFunc) g_object_unref, NULL);
2845 g_slist_free (tags);
2850 * Obtain various iterators
2854 * gtk_text_buffer_get_iter_at_line_offset:
2855 * @buffer: a #GtkTextBuffer
2856 * @iter: (out): iterator to initialize
2857 * @line_number: line number counting from 0
2858 * @char_offset: char offset from start of line
2860 * Obtains an iterator pointing to @char_offset within the given
2861 * line. The @char_offset must exist, offsets off the end of the line
2862 * are not allowed. Note <emphasis>characters</emphasis>, not bytes;
2863 * UTF-8 may encode one character as multiple bytes.
2866 gtk_text_buffer_get_iter_at_line_offset (GtkTextBuffer *buffer,
2871 g_return_if_fail (iter != NULL);
2872 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
2874 _gtk_text_btree_get_iter_at_line_char (get_btree (buffer),
2875 iter, line_number, char_offset);
2879 * gtk_text_buffer_get_iter_at_line_index:
2880 * @buffer: a #GtkTextBuffer
2881 * @iter: (out): iterator to initialize
2882 * @line_number: line number counting from 0
2883 * @byte_index: byte index from start of line
2885 * Obtains an iterator pointing to @byte_index within the given line.
2886 * @byte_index must be the start of a UTF-8 character, and must not be
2887 * beyond the end of the line. Note <emphasis>bytes</emphasis>, not
2888 * characters; UTF-8 may encode one character as multiple bytes.
2891 gtk_text_buffer_get_iter_at_line_index (GtkTextBuffer *buffer,
2896 g_return_if_fail (iter != NULL);
2897 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
2899 _gtk_text_btree_get_iter_at_line_byte (get_btree (buffer),
2900 iter, line_number, byte_index);
2904 * gtk_text_buffer_get_iter_at_line:
2905 * @buffer: a #GtkTextBuffer
2906 * @iter: (out): iterator to initialize
2907 * @line_number: line number counting from 0
2909 * Initializes @iter to the start of the given line.
2912 gtk_text_buffer_get_iter_at_line (GtkTextBuffer *buffer,
2916 g_return_if_fail (iter != NULL);
2917 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
2919 gtk_text_buffer_get_iter_at_line_offset (buffer, iter, line_number, 0);
2923 * gtk_text_buffer_get_iter_at_offset:
2924 * @buffer: a #GtkTextBuffer
2925 * @iter: (out): iterator to initialize
2926 * @char_offset: char offset from start of buffer, counting from 0, or -1
2928 * Initializes @iter to a position @char_offset chars from the start
2929 * of the entire buffer. If @char_offset is -1 or greater than the number
2930 * of characters in the buffer, @iter is initialized to the end iterator,
2931 * the iterator one past the last valid character in the buffer.
2934 gtk_text_buffer_get_iter_at_offset (GtkTextBuffer *buffer,
2938 g_return_if_fail (iter != NULL);
2939 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
2941 _gtk_text_btree_get_iter_at_char (get_btree (buffer), iter, char_offset);
2945 * gtk_text_buffer_get_start_iter:
2946 * @buffer: a #GtkTextBuffer
2947 * @iter: (out): iterator to initialize
2949 * Initialized @iter with the first position in the text buffer. This
2950 * is the same as using gtk_text_buffer_get_iter_at_offset() to get
2951 * the iter at character offset 0.
2954 gtk_text_buffer_get_start_iter (GtkTextBuffer *buffer,
2957 g_return_if_fail (iter != NULL);
2958 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
2960 _gtk_text_btree_get_iter_at_char (get_btree (buffer), iter, 0);
2964 * gtk_text_buffer_get_end_iter:
2965 * @buffer: a #GtkTextBuffer
2966 * @iter: (out): iterator to initialize
2968 * Initializes @iter with the "end iterator," one past the last valid
2969 * character in the text buffer. If dereferenced with
2970 * gtk_text_iter_get_char(), the end iterator has a character value of
2971 * 0. The entire buffer lies in the range from the first position in
2972 * the buffer (call gtk_text_buffer_get_start_iter() to get
2973 * character position 0) to the end iterator.
2976 gtk_text_buffer_get_end_iter (GtkTextBuffer *buffer,
2979 g_return_if_fail (iter != NULL);
2980 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
2982 _gtk_text_btree_get_end_iter (get_btree (buffer), iter);
2986 * gtk_text_buffer_get_bounds:
2987 * @buffer: a #GtkTextBuffer
2988 * @start: (out): iterator to initialize with first position in the buffer
2989 * @end: (out): iterator to initialize with the end iterator
2991 * Retrieves the first and last iterators in the buffer, i.e. the
2992 * entire buffer lies within the range [@start,@end).
2995 gtk_text_buffer_get_bounds (GtkTextBuffer *buffer,
2999 g_return_if_fail (start != NULL);
3000 g_return_if_fail (end != NULL);
3001 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
3003 _gtk_text_btree_get_iter_at_char (get_btree (buffer), start, 0);
3004 _gtk_text_btree_get_end_iter (get_btree (buffer), end);
3012 * gtk_text_buffer_get_modified:
3013 * @buffer: a #GtkTextBuffer
3015 * Indicates whether the buffer has been modified since the last call
3016 * to gtk_text_buffer_set_modified() set the modification flag to
3017 * %FALSE. Used for example to enable a "save" function in a text
3020 * Return value: %TRUE if the buffer has been modified
3023 gtk_text_buffer_get_modified (GtkTextBuffer *buffer)
3025 g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), FALSE);
3027 return buffer->priv->modified;
3031 * gtk_text_buffer_set_modified:
3032 * @buffer: a #GtkTextBuffer
3033 * @setting: modification flag setting
3035 * Used to keep track of whether the buffer has been modified since the
3036 * last time it was saved. Whenever the buffer is saved to disk, call
3037 * gtk_text_buffer_set_modified (@buffer, FALSE). When the buffer is modified,
3038 * it will automatically toggled on the modified bit again. When the modified
3039 * bit flips, the buffer emits a "modified-changed" signal.
3042 gtk_text_buffer_set_modified (GtkTextBuffer *buffer,
3045 gboolean fixed_setting;
3047 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
3049 fixed_setting = setting != FALSE;
3051 if (buffer->priv->modified == fixed_setting)
3055 buffer->priv->modified = fixed_setting;
3056 g_signal_emit (buffer, signals[MODIFIED_CHANGED], 0);
3061 * gtk_text_buffer_get_has_selection:
3062 * @buffer: a #GtkTextBuffer
3064 * Indicates whether the buffer has some text currently selected.
3066 * Return value: %TRUE if the there is text selected
3071 gtk_text_buffer_get_has_selection (GtkTextBuffer *buffer)
3073 g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), FALSE);
3075 return buffer->priv->has_selection;
3080 * Assorted other stuff
3084 * gtk_text_buffer_get_line_count:
3085 * @buffer: a #GtkTextBuffer
3087 * Obtains the number of lines in the buffer. This value is cached, so
3088 * the function is very fast.
3090 * Return value: number of lines in the buffer
3093 gtk_text_buffer_get_line_count (GtkTextBuffer *buffer)
3095 g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), 0);
3097 return _gtk_text_btree_line_count (get_btree (buffer));
3101 * gtk_text_buffer_get_char_count:
3102 * @buffer: a #GtkTextBuffer
3104 * Gets the number of characters in the buffer; note that characters
3105 * and bytes are not the same, you can't e.g. expect the contents of
3106 * the buffer in string form to be this many bytes long. The character
3107 * count is cached, so this function is very fast.
3109 * Return value: number of characters in the buffer
3112 gtk_text_buffer_get_char_count (GtkTextBuffer *buffer)
3114 g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), 0);
3116 return _gtk_text_btree_char_count (get_btree (buffer));
3119 /* Called when we lose the primary selection.
3122 clipboard_clear_selection_cb (GtkClipboard *clipboard,
3125 /* Move selection_bound to the insertion point */
3127 GtkTextIter selection_bound;
3128 GtkTextBuffer *buffer = GTK_TEXT_BUFFER (data);
3130 gtk_text_buffer_get_iter_at_mark (buffer, &insert,
3131 gtk_text_buffer_get_insert (buffer));
3132 gtk_text_buffer_get_iter_at_mark (buffer, &selection_bound,
3133 gtk_text_buffer_get_selection_bound (buffer));
3135 if (!gtk_text_iter_equal (&insert, &selection_bound))
3136 gtk_text_buffer_move_mark (buffer,
3137 gtk_text_buffer_get_selection_bound (buffer),
3141 /* Called when we have the primary selection and someone else wants our
3142 * data in order to paste it.
3145 clipboard_get_selection_cb (GtkClipboard *clipboard,
3146 GtkSelectionData *selection_data,
3150 GtkTextBuffer *buffer = GTK_TEXT_BUFFER (data);
3151 GtkTextIter start, end;
3153 if (gtk_text_buffer_get_selection_bounds (buffer, &start, &end))
3155 if (info == GTK_TEXT_BUFFER_TARGET_INFO_BUFFER_CONTENTS)
3157 /* Provide the address of the buffer; this will only be
3158 * used within-process
3160 gtk_selection_data_set (selection_data,
3161 selection_data->target,
3166 else if (info == GTK_TEXT_BUFFER_TARGET_INFO_RICH_TEXT)
3171 str = gtk_text_buffer_serialize (buffer, buffer,
3172 selection_data->target,
3173 &start, &end, &len);
3175 gtk_selection_data_set (selection_data,
3176 selection_data->target,
3185 str = gtk_text_iter_get_visible_text (&start, &end);
3186 gtk_selection_data_set_text (selection_data, str, -1);
3192 static GtkTextBuffer *
3193 create_clipboard_contents_buffer (GtkTextBuffer *buffer)
3195 GtkTextBuffer *contents;
3197 contents = gtk_text_buffer_new (gtk_text_buffer_get_tag_table (buffer));
3199 g_object_set_data (G_OBJECT (contents), I_("gtk-text-buffer-clipboard-source"),
3201 g_object_set_data (G_OBJECT (contents), I_("gtk-text-buffer-clipboard"),
3202 GINT_TO_POINTER (1));
3204 /* Ref the source buffer as long as the clipboard contents buffer
3205 * exists, because it's needed for serializing the contents buffer.
3206 * See http://bugzilla.gnome.org/show_bug.cgi?id=339195
3208 g_object_ref (buffer);
3209 g_object_weak_ref (G_OBJECT (contents), (GWeakNotify) g_object_unref, buffer);
3214 /* Provide cut/copied data */
3216 clipboard_get_contents_cb (GtkClipboard *clipboard,
3217 GtkSelectionData *selection_data,
3221 GtkTextBuffer *contents = GTK_TEXT_BUFFER (data);
3223 g_assert (contents); /* This should never be called unless we own the clipboard */
3225 if (info == GTK_TEXT_BUFFER_TARGET_INFO_BUFFER_CONTENTS)
3227 /* Provide the address of the clipboard buffer; this will only
3228 * be used within-process. OK to supply a NULL value for contents.
3230 gtk_selection_data_set (selection_data,
3231 selection_data->target,
3236 else if (info == GTK_TEXT_BUFFER_TARGET_INFO_RICH_TEXT)
3238 GtkTextBuffer *clipboard_source_buffer;
3239 GtkTextIter start, end;
3243 clipboard_source_buffer = g_object_get_data (G_OBJECT (contents),
3244 "gtk-text-buffer-clipboard-source");
3246 gtk_text_buffer_get_bounds (contents, &start, &end);
3248 str = gtk_text_buffer_serialize (clipboard_source_buffer, contents,
3249 selection_data->target,
3250 &start, &end, &len);
3252 gtk_selection_data_set (selection_data,
3253 selection_data->target,
3261 GtkTextIter start, end;
3263 gtk_text_buffer_get_bounds (contents, &start, &end);
3265 str = gtk_text_iter_get_visible_text (&start, &end);
3266 gtk_selection_data_set_text (selection_data, str, -1);
3272 clipboard_clear_contents_cb (GtkClipboard *clipboard,
3275 GtkTextBuffer *contents = GTK_TEXT_BUFFER (data);
3277 g_object_unref (contents);
3281 get_paste_point (GtkTextBuffer *buffer,
3283 gboolean clear_afterward)
3285 GtkTextIter insert_point;
3286 GtkTextMark *paste_point_override;
3288 paste_point_override = gtk_text_buffer_get_mark (buffer,
3289 "gtk_paste_point_override");
3291 if (paste_point_override != NULL)
3293 gtk_text_buffer_get_iter_at_mark (buffer, &insert_point,
3294 paste_point_override);
3295 if (clear_afterward)
3296 gtk_text_buffer_delete_mark (buffer,
3297 gtk_text_buffer_get_mark (buffer,
3298 "gtk_paste_point_override"));
3302 gtk_text_buffer_get_iter_at_mark (buffer, &insert_point,
3303 gtk_text_buffer_get_insert (buffer));
3306 *iter = insert_point;
3310 pre_paste_prep (ClipboardRequest *request_data,
3311 GtkTextIter *insert_point)
3313 GtkTextBuffer *buffer = request_data->buffer;
3315 get_paste_point (buffer, insert_point, TRUE);
3317 /* If we're going to replace the selection, we insert before it to
3318 * avoid messing it up, then we delete the selection after inserting.
3320 if (request_data->replace_selection)
3322 GtkTextIter start, end;
3324 if (gtk_text_buffer_get_selection_bounds (buffer, &start, &end))
3325 *insert_point = start;
3330 post_paste_cleanup (ClipboardRequest *request_data)
3332 if (request_data->replace_selection)
3334 GtkTextIter start, end;
3336 if (gtk_text_buffer_get_selection_bounds (request_data->buffer,
3339 if (request_data->interactive)
3340 gtk_text_buffer_delete_interactive (request_data->buffer,
3343 request_data->default_editable);
3345 gtk_text_buffer_delete (request_data->buffer, &start, &end);
3351 emit_paste_done (GtkTextBuffer *buffer,
3352 GtkClipboard *clipboard)
3354 g_signal_emit (buffer, signals[PASTE_DONE], 0, clipboard);
3358 free_clipboard_request (ClipboardRequest *request_data)
3360 g_object_unref (request_data->buffer);
3361 g_free (request_data);
3364 /* Called when we request a paste and receive the text data
3367 clipboard_text_received (GtkClipboard *clipboard,
3371 ClipboardRequest *request_data = data;
3372 GtkTextBuffer *buffer = request_data->buffer;
3376 GtkTextIter insert_point;
3378 if (request_data->interactive)
3379 gtk_text_buffer_begin_user_action (buffer);
3381 pre_paste_prep (request_data, &insert_point);
3383 if (request_data->interactive)
3384 gtk_text_buffer_insert_interactive (buffer, &insert_point,
3385 str, -1, request_data->default_editable);
3387 gtk_text_buffer_insert (buffer, &insert_point,
3390 post_paste_cleanup (request_data);
3392 if (request_data->interactive)
3393 gtk_text_buffer_end_user_action (buffer);
3395 emit_paste_done (buffer, clipboard);
3398 free_clipboard_request (request_data);
3401 static GtkTextBuffer*
3402 selection_data_get_buffer (GtkSelectionData *selection_data,
3403 ClipboardRequest *request_data)
3406 GtkTextBuffer *src_buffer = NULL;
3408 /* If we can get the owner, the selection is in-process */
3409 owner = gdk_selection_owner_get_for_display (selection_data->display,
3410 selection_data->selection);
3415 if (gdk_window_get_window_type (owner) == GDK_WINDOW_FOREIGN)
3418 if (selection_data->type !=
3419 gdk_atom_intern_static_string ("GTK_TEXT_BUFFER_CONTENTS"))
3422 if (selection_data->length != sizeof (src_buffer))
3425 memcpy (&src_buffer, selection_data->data, sizeof (src_buffer));
3427 if (src_buffer == NULL)
3430 g_return_val_if_fail (GTK_IS_TEXT_BUFFER (src_buffer), NULL);
3432 if (gtk_text_buffer_get_tag_table (src_buffer) !=
3433 gtk_text_buffer_get_tag_table (request_data->buffer))
3440 /* These are pretty handy functions; maybe something like them
3441 * should be in the public API. Also, there are other places in this
3442 * file where they could be used.
3445 save_iter (const GtkTextIter *iter,
3446 gboolean left_gravity)
3448 return gtk_text_buffer_create_mark (gtk_text_iter_get_buffer (iter),
3455 restore_iter (const GtkTextIter *iter,
3458 gtk_text_buffer_get_iter_at_mark (gtk_text_mark_get_buffer (save_id),
3459 (GtkTextIter*) iter,
3461 gtk_text_buffer_delete_mark (gtk_text_mark_get_buffer (save_id),
3467 clipboard_rich_text_received (GtkClipboard *clipboard,
3473 ClipboardRequest *request_data = data;
3474 GtkTextIter insert_point;
3475 gboolean retval = TRUE;
3476 GError *error = NULL;
3478 if (text != NULL && length > 0)
3480 pre_paste_prep (request_data, &insert_point);
3482 if (request_data->interactive)
3483 gtk_text_buffer_begin_user_action (request_data->buffer);
3485 if (!request_data->interactive ||
3486 gtk_text_iter_can_insert (&insert_point,
3487 request_data->default_editable))
3489 retval = gtk_text_buffer_deserialize (request_data->buffer,
3490 request_data->buffer,
3499 g_warning ("error pasting: %s\n", error->message);
3500 g_clear_error (&error);
3503 if (request_data->interactive)
3504 gtk_text_buffer_end_user_action (request_data->buffer);
3506 emit_paste_done (request_data->buffer, clipboard);
3510 post_paste_cleanup (request_data);
3515 /* Request the text selection instead */
3516 gtk_clipboard_request_text (clipboard,
3517 clipboard_text_received,
3522 paste_from_buffer (GtkClipboard *clipboard,
3523 ClipboardRequest *request_data,
3524 GtkTextBuffer *src_buffer,
3525 const GtkTextIter *start,
3526 const GtkTextIter *end)
3528 GtkTextIter insert_point;
3529 GtkTextBuffer *buffer = request_data->buffer;
3531 /* We're about to emit a bunch of signals, so be safe */
3532 g_object_ref (src_buffer);
3534 pre_paste_prep (request_data, &insert_point);
3536 if (request_data->interactive)
3537 gtk_text_buffer_begin_user_action (buffer);
3539 if (!gtk_text_iter_equal (start, end))
3541 if (!request_data->interactive ||
3542 (gtk_text_iter_can_insert (&insert_point,
3543 request_data->default_editable)))
3544 gtk_text_buffer_real_insert_range (buffer,
3548 request_data->interactive);
3551 post_paste_cleanup (request_data);
3553 if (request_data->interactive)
3554 gtk_text_buffer_end_user_action (buffer);
3556 emit_paste_done (buffer, clipboard);
3558 g_object_unref (src_buffer);
3560 free_clipboard_request (request_data);
3564 clipboard_clipboard_buffer_received (GtkClipboard *clipboard,
3565 GtkSelectionData *selection_data,
3568 ClipboardRequest *request_data = data;
3569 GtkTextBuffer *src_buffer;
3571 src_buffer = selection_data_get_buffer (selection_data, request_data);
3575 GtkTextIter start, end;
3577 if (g_object_get_data (G_OBJECT (src_buffer), "gtk-text-buffer-clipboard"))
3579 gtk_text_buffer_get_bounds (src_buffer, &start, &end);
3581 paste_from_buffer (clipboard, request_data, src_buffer,
3586 if (gtk_text_buffer_get_selection_bounds (src_buffer, &start, &end))
3587 paste_from_buffer (clipboard, request_data, src_buffer,
3593 if (gtk_clipboard_wait_is_rich_text_available (clipboard,
3594 request_data->buffer))
3596 /* Request rich text */
3597 gtk_clipboard_request_rich_text (clipboard,
3598 request_data->buffer,
3599 clipboard_rich_text_received,
3604 /* Request the text selection instead */
3605 gtk_clipboard_request_text (clipboard,
3606 clipboard_text_received,
3614 GtkClipboard *clipboard;
3616 } SelectionClipboard;
3619 update_selection_clipboards (GtkTextBuffer *buffer)
3621 GtkTextBufferPrivate *priv;
3622 GSList *tmp_list = buffer->priv->selection_clipboards;
3624 priv = buffer->priv;
3626 gtk_text_buffer_get_copy_target_list (buffer);
3633 SelectionClipboard *selection_clipboard = tmp_list->data;
3634 GtkClipboard *clipboard = selection_clipboard->clipboard;
3636 /* Determine whether we have a selection and adjust X selection
3639 if (!gtk_text_buffer_get_selection_bounds (buffer, &start, &end))
3641 if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (buffer))
3642 gtk_clipboard_clear (clipboard);
3646 /* Even if we already have the selection, we need to update our
3649 if (!gtk_clipboard_set_with_owner (clipboard,
3650 priv->copy_target_entries,
3651 priv->n_copy_target_entries,
3652 clipboard_get_selection_cb,
3653 clipboard_clear_selection_cb,
3655 clipboard_clear_selection_cb (clipboard, buffer);
3658 tmp_list = tmp_list->next;
3662 static SelectionClipboard *
3663 find_selection_clipboard (GtkTextBuffer *buffer,
3664 GtkClipboard *clipboard)
3666 GSList *tmp_list = buffer->priv->selection_clipboards;
3669 SelectionClipboard *selection_clipboard = tmp_list->data;
3670 if (selection_clipboard->clipboard == clipboard)
3671 return selection_clipboard;
3673 tmp_list = tmp_list->next;
3680 * gtk_text_buffer_add_selection_clipboard:
3681 * @buffer: a #GtkTextBuffer
3682 * @clipboard: a #GtkClipboard
3684 * Adds @clipboard to the list of clipboards in which the selection
3685 * contents of @buffer are available. In most cases, @clipboard will be
3686 * the #GtkClipboard of type %GDK_SELECTION_PRIMARY for a view of @buffer.
3689 gtk_text_buffer_add_selection_clipboard (GtkTextBuffer *buffer,
3690 GtkClipboard *clipboard)
3692 SelectionClipboard *selection_clipboard;
3694 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
3695 g_return_if_fail (clipboard != NULL);
3697 selection_clipboard = find_selection_clipboard (buffer, clipboard);
3698 if (selection_clipboard)
3700 selection_clipboard->ref_count++;
3704 selection_clipboard = g_new (SelectionClipboard, 1);
3706 selection_clipboard->clipboard = clipboard;
3707 selection_clipboard->ref_count = 1;
3709 buffer->priv->selection_clipboards = g_slist_prepend (buffer->priv->selection_clipboards,
3710 selection_clipboard);
3715 * gtk_text_buffer_remove_selection_clipboard:
3716 * @buffer: a #GtkTextBuffer
3717 * @clipboard: a #GtkClipboard added to @buffer by
3718 * gtk_text_buffer_add_selection_clipboard()
3720 * Removes a #GtkClipboard added with
3721 * gtk_text_buffer_add_selection_clipboard().
3724 gtk_text_buffer_remove_selection_clipboard (GtkTextBuffer *buffer,
3725 GtkClipboard *clipboard)
3727 SelectionClipboard *selection_clipboard;
3729 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
3730 g_return_if_fail (clipboard != NULL);
3732 selection_clipboard = find_selection_clipboard (buffer, clipboard);
3733 g_return_if_fail (selection_clipboard != NULL);
3735 selection_clipboard->ref_count--;
3736 if (selection_clipboard->ref_count == 0)
3738 if (gtk_clipboard_get_owner (selection_clipboard->clipboard) == G_OBJECT (buffer))
3739 gtk_clipboard_clear (selection_clipboard->clipboard);
3741 buffer->priv->selection_clipboards = g_slist_remove (buffer->priv->selection_clipboards,
3742 selection_clipboard);
3744 g_free (selection_clipboard);
3749 remove_all_selection_clipboards (GtkTextBuffer *buffer)
3751 GtkTextBufferPrivate *priv = buffer->priv;
3753 g_slist_foreach (priv->selection_clipboards, (GFunc)g_free, NULL);
3754 g_slist_free (priv->selection_clipboards);
3755 priv->selection_clipboards = NULL;
3759 * gtk_text_buffer_paste_clipboard:
3760 * @buffer: a #GtkTextBuffer
3761 * @clipboard: the #GtkClipboard to paste from
3762 * @override_location: (allow-none): location to insert pasted text, or %NULL for
3764 * @default_editable: whether the buffer is editable by default
3766 * Pastes the contents of a clipboard at the insertion point, or at
3767 * @override_location. (Note: pasting is asynchronous, that is, we'll
3768 * ask for the paste data and return, and at some point later after
3769 * the main loop runs, the paste data will be inserted.)
3772 gtk_text_buffer_paste_clipboard (GtkTextBuffer *buffer,
3773 GtkClipboard *clipboard,
3774 GtkTextIter *override_location,
3775 gboolean default_editable)
3777 ClipboardRequest *data = g_new (ClipboardRequest, 1);
3778 GtkTextIter paste_point;
3779 GtkTextIter start, end;
3781 if (override_location != NULL)
3782 gtk_text_buffer_create_mark (buffer,
3783 "gtk_paste_point_override",
3784 override_location, FALSE);
3786 data->buffer = g_object_ref (buffer);
3787 data->interactive = TRUE;
3788 data->default_editable = default_editable;
3790 /* When pasting with the cursor inside the selection area, you
3791 * replace the selection with the new text, otherwise, you
3792 * simply insert the new text at the point where the click
3793 * occured, unselecting any selected text. The replace_selection
3794 * flag toggles this behavior.
3796 data->replace_selection = FALSE;
3798 get_paste_point (buffer, &paste_point, FALSE);
3799 if (gtk_text_buffer_get_selection_bounds (buffer, &start, &end) &&
3800 (gtk_text_iter_in_range (&paste_point, &start, &end) ||
3801 gtk_text_iter_equal (&paste_point, &end)))
3802 data->replace_selection = TRUE;
3804 gtk_clipboard_request_contents (clipboard,
3805 gdk_atom_intern_static_string ("GTK_TEXT_BUFFER_CONTENTS"),
3806 clipboard_clipboard_buffer_received, data);
3810 * gtk_text_buffer_delete_selection:
3811 * @buffer: a #GtkTextBuffer
3812 * @interactive: whether the deletion is caused by user interaction
3813 * @default_editable: whether the buffer is editable by default
3815 * Deletes the range between the "insert" and "selection_bound" marks,
3816 * that is, the currently-selected text. If @interactive is %TRUE,
3817 * the editability of the selection will be considered (users can't delete
3820 * Return value: whether there was a non-empty selection to delete
3823 gtk_text_buffer_delete_selection (GtkTextBuffer *buffer,
3824 gboolean interactive,
3825 gboolean default_editable)
3830 if (!gtk_text_buffer_get_selection_bounds (buffer, &start, &end))
3832 return FALSE; /* No selection */
3837 gtk_text_buffer_delete_interactive (buffer, &start, &end, default_editable);
3839 gtk_text_buffer_delete (buffer, &start, &end);
3841 return TRUE; /* We deleted stuff */
3846 * gtk_text_buffer_backspace:
3847 * @buffer: a #GtkTextBuffer
3848 * @iter: a position in @buffer
3849 * @interactive: whether the deletion is caused by user interaction
3850 * @default_editable: whether the buffer is editable by default
3852 * Performs the appropriate action as if the user hit the delete
3853 * key with the cursor at the position specified by @iter. In the
3854 * normal case a single character will be deleted, but when
3855 * combining accents are involved, more than one character can
3856 * be deleted, and when precomposed character and accent combinations
3857 * are involved, less than one character will be deleted.
3859 * Because the buffer is modified, all outstanding iterators become
3860 * invalid after calling this function; however, the @iter will be
3861 * re-initialized to point to the location where text was deleted.
3863 * Return value: %TRUE if the buffer was modified
3868 gtk_text_buffer_backspace (GtkTextBuffer *buffer,
3870 gboolean interactive,
3871 gboolean default_editable)
3873 gchar *cluster_text;
3876 gboolean retval = FALSE;
3877 const PangoLogAttr *attrs;
3879 gboolean backspace_deletes_character;
3881 g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), FALSE);
3882 g_return_val_if_fail (iter != NULL, FALSE);
3887 attrs = _gtk_text_buffer_get_line_log_attrs (buffer, &start, NULL);
3889 /* For no good reason, attrs is NULL for the empty last line in
3890 * a buffer. Special case that here. (#156164)
3894 offset = gtk_text_iter_get_line_offset (&start);
3895 backspace_deletes_character = attrs[offset].backspace_deletes_character;
3898 backspace_deletes_character = FALSE;
3900 gtk_text_iter_backward_cursor_position (&start);
3902 if (gtk_text_iter_equal (&start, &end))
3905 cluster_text = gtk_text_iter_get_text (&start, &end);
3908 gtk_text_buffer_begin_user_action (buffer);
3910 if (gtk_text_buffer_delete_interactive (buffer, &start, &end,
3913 /* special case \r\n, since we never want to reinsert \r */
3914 if (backspace_deletes_character && strcmp ("\r\n", cluster_text))
3916 gchar *normalized_text = g_utf8_normalize (cluster_text,
3917 strlen (cluster_text),
3919 glong len = g_utf8_strlen (normalized_text, -1);
3922 gtk_text_buffer_insert_interactive (buffer,
3925 g_utf8_offset_to_pointer (normalized_text, len - 1) - normalized_text,
3928 g_free (normalized_text);
3935 gtk_text_buffer_end_user_action (buffer);
3937 g_free (cluster_text);
3939 /* Revalidate the users iter */
3946 cut_or_copy (GtkTextBuffer *buffer,
3947 GtkClipboard *clipboard,
3948 gboolean delete_region_after,
3949 gboolean interactive,
3950 gboolean default_editable)
3952 GtkTextBufferPrivate *priv;
3954 /* We prefer to cut the selected region between selection_bound and
3955 * insertion point. If that region is empty, then we cut the region
3956 * between the "anchor" and the insertion point (this is for
3957 * C-space and M-w and other Emacs-style copy/yank keys). Note that
3958 * insert and selection_bound are guaranteed to exist, but the
3959 * anchor only exists sometimes.
3964 priv = buffer->priv;
3966 gtk_text_buffer_get_copy_target_list (buffer);
3968 if (!gtk_text_buffer_get_selection_bounds (buffer, &start, &end))
3970 /* Let's try the anchor thing */
3971 GtkTextMark * anchor = gtk_text_buffer_get_mark (buffer, "anchor");
3977 gtk_text_buffer_get_iter_at_mark (buffer, &end, anchor);
3978 gtk_text_iter_order (&start, &end);
3982 if (!gtk_text_iter_equal (&start, &end))
3985 GtkTextBuffer *contents;
3987 contents = create_clipboard_contents_buffer (buffer);
3989 gtk_text_buffer_get_iter_at_offset (contents, &ins, 0);
3991 gtk_text_buffer_insert_range (contents, &ins, &start, &end);
3993 if (!gtk_clipboard_set_with_data (clipboard,
3994 priv->copy_target_entries,
3995 priv->n_copy_target_entries,
3996 clipboard_get_contents_cb,
3997 clipboard_clear_contents_cb,
3999 g_object_unref (contents);
4001 gtk_clipboard_set_can_store (clipboard,
4002 priv->copy_target_entries + 1,
4003 priv->n_copy_target_entries - 1);
4005 if (delete_region_after)
4008 gtk_text_buffer_delete_interactive (buffer, &start, &end,
4011 gtk_text_buffer_delete (buffer, &start, &end);
4017 * gtk_text_buffer_cut_clipboard:
4018 * @buffer: a #GtkTextBuffer
4019 * @clipboard: the #GtkClipboard object to cut to
4020 * @default_editable: default editability of the buffer
4022 * Copies the currently-selected text to a clipboard, then deletes
4023 * said text if it's editable.
4026 gtk_text_buffer_cut_clipboard (GtkTextBuffer *buffer,
4027 GtkClipboard *clipboard,
4028 gboolean default_editable)
4030 gtk_text_buffer_begin_user_action (buffer);
4031 cut_or_copy (buffer, clipboard, TRUE, TRUE, default_editable);
4032 gtk_text_buffer_end_user_action (buffer);
4036 * gtk_text_buffer_copy_clipboard:
4037 * @buffer: a #GtkTextBuffer
4038 * @clipboard: the #GtkClipboard object to copy to
4040 * Copies the currently-selected text to a clipboard.
4043 gtk_text_buffer_copy_clipboard (GtkTextBuffer *buffer,
4044 GtkClipboard *clipboard)
4046 cut_or_copy (buffer, clipboard, FALSE, TRUE, TRUE);
4050 * gtk_text_buffer_get_selection_bounds:
4051 * @buffer: a #GtkTextBuffer a #GtkTextBuffer
4052 * @start: (out): iterator to initialize with selection start
4053 * @end: (out): iterator to initialize with selection end
4055 * Returns %TRUE if some text is selected; places the bounds
4056 * of the selection in @start and @end (if the selection has length 0,
4057 * then @start and @end are filled in with the same value).
4058 * @start and @end will be in ascending order. If @start and @end are
4059 * NULL, then they are not filled in, but the return value still indicates
4060 * whether text is selected.
4062 * Return value: whether the selection has nonzero length
4065 gtk_text_buffer_get_selection_bounds (GtkTextBuffer *buffer,
4069 g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), FALSE);
4071 return _gtk_text_btree_get_selection_bounds (get_btree (buffer), start, end);
4075 * gtk_text_buffer_begin_user_action:
4076 * @buffer: a #GtkTextBuffer
4078 * Called to indicate that the buffer operations between here and a
4079 * call to gtk_text_buffer_end_user_action() are part of a single
4080 * user-visible operation. The operations between
4081 * gtk_text_buffer_begin_user_action() and
4082 * gtk_text_buffer_end_user_action() can then be grouped when creating
4083 * an undo stack. #GtkTextBuffer maintains a count of calls to
4084 * gtk_text_buffer_begin_user_action() that have not been closed with
4085 * a call to gtk_text_buffer_end_user_action(), and emits the
4086 * "begin-user-action" and "end-user-action" signals only for the
4087 * outermost pair of calls. This allows you to build user actions
4088 * from other user actions.
4090 * The "interactive" buffer mutation functions, such as
4091 * gtk_text_buffer_insert_interactive(), automatically call begin/end
4092 * user action around the buffer operations they perform, so there's
4093 * no need to add extra calls if you user action consists solely of a
4094 * single call to one of those functions.
4097 gtk_text_buffer_begin_user_action (GtkTextBuffer *buffer)
4099 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
4101 buffer->priv->user_action_count += 1;
4103 if (buffer->priv->user_action_count == 1)
4105 /* Outermost nested user action begin emits the signal */
4106 g_signal_emit (buffer, signals[BEGIN_USER_ACTION], 0);
4111 * gtk_text_buffer_end_user_action:
4112 * @buffer: a #GtkTextBuffer
4114 * Should be paired with a call to gtk_text_buffer_begin_user_action().
4115 * See that function for a full explanation.
4118 gtk_text_buffer_end_user_action (GtkTextBuffer *buffer)
4120 g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
4121 g_return_if_fail (buffer->priv->user_action_count > 0);
4123 buffer->priv->user_action_count -= 1;
4125 if (buffer->priv->user_action_count == 0)
4127 /* Ended the outermost-nested user action end, so emit the signal */
4128 g_signal_emit (buffer, signals[END_USER_ACTION], 0);
4133 gtk_text_buffer_free_target_lists (GtkTextBuffer *buffer)
4135 GtkTextBufferPrivate *priv = buffer->priv;
4137 if (priv->copy_target_list)
4139 gtk_target_list_unref (priv->copy_target_list);
4140 priv->copy_target_list = NULL;
4142 gtk_target_table_free (priv->copy_target_entries,
4143 priv->n_copy_target_entries);
4144 priv->copy_target_entries = NULL;
4145 priv->n_copy_target_entries = 0;
4148 if (priv->paste_target_list)
4150 gtk_target_list_unref (priv->paste_target_list);
4151 priv->paste_target_list = NULL;
4153 gtk_target_table_free (priv->paste_target_entries,
4154 priv->n_paste_target_entries);
4155 priv->paste_target_entries = NULL;
4156 priv->n_paste_target_entries = 0;
4160 static GtkTargetList *
4161 gtk_text_buffer_get_target_list (GtkTextBuffer *buffer,
4162 gboolean deserializable,
4163 GtkTargetEntry **entries,
4166 GtkTargetList *target_list;
4168 target_list = gtk_target_list_new (NULL, 0);
4170 gtk_target_list_add (target_list,
4171 gdk_atom_intern_static_string ("GTK_TEXT_BUFFER_CONTENTS"),
4172 GTK_TARGET_SAME_APP,
4173 GTK_TEXT_BUFFER_TARGET_INFO_BUFFER_CONTENTS);
4175 gtk_target_list_add_rich_text_targets (target_list,
4176 GTK_TEXT_BUFFER_TARGET_INFO_RICH_TEXT,
4180 gtk_target_list_add_text_targets (target_list,
4181 GTK_TEXT_BUFFER_TARGET_INFO_TEXT);
4183 *entries = gtk_target_table_new_from_list (target_list, n_entries);
4189 * gtk_text_buffer_get_copy_target_list:
4190 * @buffer: a #GtkTextBuffer
4192 * This function returns the list of targets this text buffer can
4193 * provide for copying and as DND source. The targets in the list are
4194 * added with %info values from the #GtkTextBufferTargetInfo enum,
4195 * using gtk_target_list_add_rich_text_targets() and
4196 * gtk_target_list_add_text_targets().
4198 * Return value: the #GtkTargetList
4203 gtk_text_buffer_get_copy_target_list (GtkTextBuffer *buffer)
4205 GtkTextBufferPrivate *priv;
4207 g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), NULL);
4209 priv = buffer->priv;
4211 if (! priv->copy_target_list)
4212 priv->copy_target_list =
4213 gtk_text_buffer_get_target_list (buffer, FALSE,
4214 &priv->copy_target_entries,
4215 &priv->n_copy_target_entries);
4217 return priv->copy_target_list;
4221 * gtk_text_buffer_get_paste_target_list:
4222 * @buffer: a #GtkTextBuffer
4224 * This function returns the list of targets this text buffer supports
4225 * for pasting and as DND destination. The targets in the list are
4226 * added with %info values from the #GtkTextBufferTargetInfo enum,
4227 * using gtk_target_list_add_rich_text_targets() and
4228 * gtk_target_list_add_text_targets().
4230 * Return value: the #GtkTargetList
4235 gtk_text_buffer_get_paste_target_list (GtkTextBuffer *buffer)
4237 GtkTextBufferPrivate *priv;
4239 g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), NULL);
4241 priv = buffer->priv;
4243 if (! priv->paste_target_list)
4244 priv->paste_target_list =
4245 gtk_text_buffer_get_target_list (buffer, TRUE,
4246 &priv->paste_target_entries,
4247 &priv->n_paste_target_entries);
4249 return priv->paste_target_list;
4253 * Logical attribute cache
4256 #define ATTR_CACHE_SIZE 2
4258 typedef struct _CacheEntry CacheEntry;
4263 PangoLogAttr *attrs;
4266 struct _GtkTextLogAttrCache
4268 gint chars_changed_stamp;
4269 CacheEntry entries[ATTR_CACHE_SIZE];
4273 free_log_attr_cache (GtkTextLogAttrCache *cache)
4276 while (i < ATTR_CACHE_SIZE)
4278 g_free (cache->entries[i].attrs);
4285 clear_log_attr_cache (GtkTextLogAttrCache *cache)
4288 while (i < ATTR_CACHE_SIZE)
4290 g_free (cache->entries[i].attrs);
4291 cache->entries[i].attrs = NULL;
4296 static PangoLogAttr*
4297 compute_log_attrs (const GtkTextIter *iter,
4303 gint char_len, byte_len;
4304 PangoLogAttr *attrs = NULL;
4309 gtk_text_iter_set_line_offset (&start, 0);
4310 gtk_text_iter_forward_line (&end);
4312 paragraph = gtk_text_iter_get_slice (&start, &end);
4313 char_len = g_utf8_strlen (paragraph, -1);
4314 byte_len = strlen (paragraph);
4316 g_assert (char_len > 0);
4319 *char_lenp = char_len;
4321 attrs = g_new (PangoLogAttr, char_len + 1);
4323 /* FIXME we need to follow PangoLayout and allow different language
4324 * tags within the paragraph
4326 pango_get_log_attrs (paragraph, byte_len, -1,
4327 gtk_text_iter_get_language (&start),
4336 /* The return value from this is valid until you call this a second time.
4339 _gtk_text_buffer_get_line_log_attrs (GtkTextBuffer *buffer,
4340 const GtkTextIter *anywhere_in_line,
4343 GtkTextBufferPrivate *priv;
4345 GtkTextLogAttrCache *cache;
4348 g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), NULL);
4349 g_return_val_if_fail (anywhere_in_line != NULL, NULL);
4351 priv = buffer->priv;
4353 /* special-case for empty last line in buffer */
4354 if (gtk_text_iter_is_end (anywhere_in_line) &&
4355 gtk_text_iter_get_line_offset (anywhere_in_line) == 0)
4362 /* FIXME we also need to recompute log attrs if the language tag at
4363 * the start of a paragraph changes
4366 if (priv->log_attr_cache == NULL)
4368 priv->log_attr_cache = g_new0 (GtkTextLogAttrCache, 1);
4369 priv->log_attr_cache->chars_changed_stamp =
4370 _gtk_text_btree_get_chars_changed_stamp (get_btree (buffer));
4372 else if (priv->log_attr_cache->chars_changed_stamp !=
4373 _gtk_text_btree_get_chars_changed_stamp (get_btree (buffer)))
4375 clear_log_attr_cache (priv->log_attr_cache);
4378 cache = priv->log_attr_cache;
4379 line = gtk_text_iter_get_line (anywhere_in_line);
4382 while (i < ATTR_CACHE_SIZE)
4384 if (cache->entries[i].attrs &&
4385 cache->entries[i].line == line)
4388 *char_len = cache->entries[i].char_len;
4389 return cache->entries[i].attrs;
4394 /* Not in cache; open up the first cache entry */
4395 g_free (cache->entries[ATTR_CACHE_SIZE-1].attrs);
4397 g_memmove (cache->entries + 1, cache->entries,
4398 sizeof (CacheEntry) * (ATTR_CACHE_SIZE - 1));
4400 cache->entries[0].line = line;
4401 cache->entries[0].attrs = compute_log_attrs (anywhere_in_line,
4402 &cache->entries[0].char_len);
4405 *char_len = cache->entries[0].char_len;
4407 return cache->entries[0].attrs;
4411 _gtk_text_buffer_notify_will_remove_tag (GtkTextBuffer *buffer,
4414 /* This removes tag from the buffer, but DOESN'T emit the
4415 * remove-tag signal, because we can't afford to have user
4416 * code messing things up at this point; the tag MUST be removed
4419 if (buffer->priv->btree)
4420 _gtk_text_btree_notify_will_remove_tag (buffer->priv->btree, tag);
4428 _gtk_text_buffer_spew (GtkTextBuffer *buffer)
4430 _gtk_text_btree_spew (get_btree (buffer));