/* GTK - The GIMP Toolkit * gtktextbuffer.c Copyright (C) 2000 Red Hat, Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ /* * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS * file for a list of people on the GTK+ Team. See the ChangeLog * files for a list of changes. These files are distributed with * GTK+ at ftp://ftp.gtk.org/pub/gtk/. */ #include #include "gtkclipboard.h" #include "gtkinvisible.h" #include "gtksignal.h" #include "gtktextbuffer.h" #include "gtktextbtree.h" #include "gtktextiterprivate.h" #include typedef struct _ClipboardRequest ClipboardRequest; struct _ClipboardRequest { GtkTextBuffer *buffer; gboolean interactive; gboolean default_editable; gboolean is_clipboard; }; enum { INSERT_TEXT, DELETE_TEXT, CHANGED, MODIFIED_CHANGED, MARK_SET, MARK_DELETED, APPLY_TAG, REMOVE_TAG, LAST_SIGNAL }; enum { ARG_0, LAST_ARG }; enum { TARGET_STRING, TARGET_TEXT, TARGET_COMPOUND_TEXT, TARGET_UTF8_STRING }; static void gtk_text_buffer_init (GtkTextBuffer *tkxt_buffer); static void gtk_text_buffer_class_init (GtkTextBufferClass *klass); static void gtk_text_buffer_destroy (GtkObject *object); static void gtk_text_buffer_finalize (GObject *object); static void gtk_text_buffer_update_primary_selection (GtkTextBuffer *buffer); static void gtk_text_buffer_real_insert_text (GtkTextBuffer *buffer, GtkTextIter *iter, const gchar *text, gint len, gboolean interactive); static void gtk_text_buffer_real_delete_text (GtkTextBuffer *buffer, GtkTextIter *start, GtkTextIter *end, gboolean interactive); static void gtk_text_buffer_real_apply_tag (GtkTextBuffer *buffer, GtkTextTag *tag, const GtkTextIter *start_char, const GtkTextIter *end_char); static void gtk_text_buffer_real_remove_tag (GtkTextBuffer *buffer, GtkTextTag *tag, const GtkTextIter *start_char, const GtkTextIter *end_char); static GtkTextBTree* get_btree (GtkTextBuffer *buffer); static GtkObjectClass *parent_class = NULL; static guint signals[LAST_SIGNAL] = { 0 }; GtkType gtk_text_buffer_get_type (void) { static GtkType our_type = 0; if (our_type == 0) { static const GtkTypeInfo our_info = { "GtkTextBuffer", sizeof (GtkTextBuffer), sizeof (GtkTextBufferClass), (GtkClassInitFunc) gtk_text_buffer_class_init, (GtkObjectInitFunc) gtk_text_buffer_init, /* reserved_1 */ NULL, /* reserved_2 */ NULL, (GtkClassInitFunc) NULL }; our_type = gtk_type_unique (GTK_TYPE_OBJECT, &our_info); } return our_type; } static void gtk_text_buffer_class_init (GtkTextBufferClass *klass) { GtkObjectClass *object_class = (GtkObjectClass*) klass; GObjectClass *gobject_class = G_OBJECT_CLASS (klass); parent_class = gtk_type_class (GTK_TYPE_OBJECT); signals[INSERT_TEXT] = gtk_signal_new ("insert_text", GTK_RUN_LAST, GTK_CLASS_TYPE (object_class), GTK_SIGNAL_OFFSET (GtkTextBufferClass, insert_text), gtk_marshal_VOID__POINTER_POINTER_INT_BOOLEAN, GTK_TYPE_NONE, 4, GTK_TYPE_POINTER, GTK_TYPE_POINTER, GTK_TYPE_INT, GTK_TYPE_BOOL); signals[DELETE_TEXT] = gtk_signal_new ("delete_text", GTK_RUN_LAST, GTK_CLASS_TYPE (object_class), GTK_SIGNAL_OFFSET (GtkTextBufferClass, delete_text), gtk_marshal_VOID__POINTER_POINTER_BOOLEAN, GTK_TYPE_NONE, 3, GTK_TYPE_POINTER, GTK_TYPE_POINTER, GTK_TYPE_BOOL); signals[CHANGED] = gtk_signal_new ("changed", GTK_RUN_LAST, GTK_CLASS_TYPE (object_class), GTK_SIGNAL_OFFSET (GtkTextBufferClass, changed), gtk_marshal_VOID__VOID, GTK_TYPE_NONE, 0); signals[MODIFIED_CHANGED] = gtk_signal_new ("modified_changed", GTK_RUN_LAST, GTK_CLASS_TYPE (object_class), GTK_SIGNAL_OFFSET (GtkTextBufferClass, modified_changed), gtk_marshal_VOID__VOID, GTK_TYPE_NONE, 0); signals[MARK_SET] = gtk_signal_new ("mark_set", GTK_RUN_LAST, GTK_CLASS_TYPE (object_class), GTK_SIGNAL_OFFSET (GtkTextBufferClass, mark_set), gtk_marshal_VOID__POINTER_POINTER, GTK_TYPE_NONE, 2, GTK_TYPE_POINTER, GTK_TYPE_POINTER); signals[MARK_DELETED] = gtk_signal_new ("mark_deleted", GTK_RUN_LAST, GTK_CLASS_TYPE (object_class), GTK_SIGNAL_OFFSET (GtkTextBufferClass, mark_deleted), gtk_marshal_VOID__POINTER, GTK_TYPE_NONE, 1, GTK_TYPE_POINTER); signals[APPLY_TAG] = gtk_signal_new ("apply_tag", GTK_RUN_LAST, GTK_CLASS_TYPE (object_class), GTK_SIGNAL_OFFSET (GtkTextBufferClass, apply_tag), gtk_marshal_VOID__POINTER_POINTER_POINTER, GTK_TYPE_NONE, 3, GTK_TYPE_POINTER, GTK_TYPE_POINTER, GTK_TYPE_POINTER); signals[REMOVE_TAG] = gtk_signal_new ("remove_tag", GTK_RUN_LAST, GTK_CLASS_TYPE (object_class), GTK_SIGNAL_OFFSET (GtkTextBufferClass, remove_tag), gtk_marshal_VOID__POINTER_POINTER_POINTER, GTK_TYPE_NONE, 3, GTK_TYPE_POINTER, GTK_TYPE_POINTER, GTK_TYPE_POINTER); gtk_object_class_add_signals (object_class, signals, LAST_SIGNAL); object_class->destroy = gtk_text_buffer_destroy; gobject_class->finalize = gtk_text_buffer_finalize; klass->insert_text = gtk_text_buffer_real_insert_text; klass->delete_text = gtk_text_buffer_real_delete_text; klass->apply_tag = gtk_text_buffer_real_apply_tag; klass->remove_tag = gtk_text_buffer_real_remove_tag; } void gtk_text_buffer_init (GtkTextBuffer *buffer) { } /** * gtk_text_buffer_new: * @table: a tag table, or NULL to create a new one * * Creates a new text buffer. * * Return value: a new text buffer **/ GtkTextBuffer* gtk_text_buffer_new (GtkTextTagTable *table) { GtkTextBuffer *text_buffer; text_buffer = GTK_TEXT_BUFFER (gtk_type_new (gtk_text_buffer_get_type ())); if (table) { text_buffer->tag_table = table; gtk_object_ref (GTK_OBJECT(text_buffer->tag_table)); gtk_object_sink (GTK_OBJECT(text_buffer->tag_table)); } return text_buffer; } static void gtk_text_buffer_destroy (GtkObject *object) { GtkTextBuffer *buffer; buffer = GTK_TEXT_BUFFER (object); if (buffer->tag_table) { gtk_object_unref(GTK_OBJECT(buffer->tag_table)); buffer->tag_table = NULL; } if (buffer->btree) { gtk_text_btree_unref(buffer->btree); buffer->btree = NULL; } (* parent_class->destroy) (object); } static void gtk_text_buffer_finalize (GObject *object) { GtkTextBuffer *tkxt_buffer; tkxt_buffer = GTK_TEXT_BUFFER (object); G_OBJECT_CLASS (parent_class)->finalize (object); } static GtkTextTagTable* get_table (GtkTextBuffer *buffer) { if (buffer->tag_table == NULL) { buffer->tag_table = gtk_text_tag_table_new (); gtk_object_ref (GTK_OBJECT(buffer->tag_table)); gtk_object_sink (GTK_OBJECT(buffer->tag_table)); } return buffer->tag_table; } static GtkTextBTree* get_btree (GtkTextBuffer *buffer) { if (buffer->btree == NULL) buffer->btree = gtk_text_btree_new(gtk_text_buffer_get_tag_table (buffer), buffer); return buffer->btree; } GtkTextBTree* _gtk_text_buffer_get_btree (GtkTextBuffer *buffer) { return get_btree (buffer); } /** * gtk_text_buffer_get_tag_table: * @buffer: a #GtkTextBuffer * * Get the #GtkTextTagTable associated with this buffer. * * Return value: the buffer's tag table **/ GtkTextTagTable* gtk_text_buffer_get_tag_table (GtkTextBuffer *buffer) { g_return_val_if_fail(GTK_IS_TEXT_BUFFER(buffer), NULL); return get_table (buffer); } /** * gtk_text_buffer_set_text: * @buffer: a #GtkTextBuffer * @text: UTF-8 text to insert * @len: length of @text in bytes * * Deletes current contents of @buffer, and inserts @text instead. If * @text doesn't end with a newline, a newline is added; * #GtkTextBuffer contents must always end with a newline. If @text * ends with a newline, the new buffer contents will be exactly * @text. If @len is -1, @text must be nul-terminated. **/ void gtk_text_buffer_set_text (GtkTextBuffer *buffer, const gchar *text, gint len) { GtkTextIter start, end; g_return_if_fail (GTK_IS_TEXT_BUFFER(buffer)); g_return_if_fail (text != NULL); if (len < 0) len = strlen (text); /* Chop newline, since the buffer will already have one * in it. */ if (len > 0 && text[len-1] == '\n') len -= 1; gtk_text_buffer_get_bounds (buffer, &start, &end); gtk_text_buffer_delete (buffer, &start, &end); if (len > 0) { gtk_text_buffer_get_iter_at_offset (buffer, &start, 0); gtk_text_buffer_insert (buffer, &start, text, len); } } /* * Insertion */ static void gtk_text_buffer_real_insert_text(GtkTextBuffer *buffer, GtkTextIter *iter, const gchar *text, gint len, gboolean interactive) { g_return_if_fail(GTK_IS_TEXT_BUFFER(buffer)); g_return_if_fail(iter != NULL); gtk_text_btree_insert(iter, text, len); gtk_signal_emit(GTK_OBJECT(buffer), signals[CHANGED]); gtk_text_buffer_set_modified(buffer, TRUE); } static void gtk_text_buffer_emit_insert(GtkTextBuffer *buffer, GtkTextIter *iter, const gchar *text, gint len, gboolean interactive) { g_return_if_fail(GTK_IS_TEXT_BUFFER(buffer)); g_return_if_fail(iter != NULL); g_return_if_fail(text != NULL); if (len < 0) len = strlen(text); if (len > 0) { gtk_signal_emit(GTK_OBJECT(buffer), signals[INSERT_TEXT], iter, text, len, interactive); } } /** * gtk_text_buffer_insert: * @buffer: a #GtkTextBuffer * @iter: a position in the buffer * @text: UTF-8 format text to insert * @len: length of text in bytes, or -1 * * Inserts @len bytes of @text at position @iter. If @len is -1, * @text must be nul-terminated and will be inserted in its * entirety. Emits the "insert_text" signal; insertion actually occurs * in the default handler for the signal. @iter is invalidated when * insertion occurs (because the buffer contents change), but the * default signal handler revalidates it to point to the end of the * inserted text. * **/ void gtk_text_buffer_insert (GtkTextBuffer *buffer, GtkTextIter *iter, const gchar *text, gint len) { g_return_if_fail(GTK_IS_TEXT_BUFFER(buffer)); g_return_if_fail(iter != NULL); g_return_if_fail(text != NULL); gtk_text_buffer_emit_insert(buffer, iter, text, len, FALSE); } /** * gtk_text_buffer_insert_at_cursor: * @buffer: a #GtkTextBuffer * @text: some text in UTF-8 format * @len: length of text, in bytes * * Simply calls gtk_text_buffer_insert(), using the current * cursor position as the insertion point. **/ void gtk_text_buffer_insert_at_cursor (GtkTextBuffer *buffer, const gchar *text, gint len) { GtkTextIter iter; g_return_if_fail(GTK_IS_TEXT_BUFFER(buffer)); g_return_if_fail(text != NULL); gtk_text_buffer_get_iter_at_mark(buffer, &iter, gtk_text_buffer_get_mark (buffer, "insert")); gtk_text_buffer_insert(buffer, &iter, text, len); } /** * gtk_text_buffer_insert_interactive: * @buffer: a #GtkTextBuffer * @iter: a position in @buffer * @text: some UTF-8 text * @len: length of text in bytes, or -1 * @default_editable: default editability of buffer * * Like gtk_text_buffer_insert(), but the insertion will not occur if * @iter is at a non-editable location in the buffer. Usually you * want to prevent insertions at ineditable locations if the insertion * results from a user action (is interactive). * * Return value: whether text was actually inserted **/ gboolean gtk_text_buffer_insert_interactive(GtkTextBuffer *buffer, GtkTextIter *iter, const gchar *text, gint len, gboolean default_editable) { g_return_val_if_fail(GTK_IS_TEXT_BUFFER(buffer), FALSE); g_return_val_if_fail(text != NULL, FALSE); if (gtk_text_iter_editable (iter, default_editable)) { gtk_text_buffer_emit_insert (buffer, iter, text, len, TRUE); return TRUE; } else return FALSE; } /** * gtk_text_buffer_insert_interactive_at_cursor: * @buffer: a #GtkTextBuffer * @text: text in UTF-8 format * @len: length of text in bytes, or -1 * @default_editable: default editability of buffer * * Calls gtk_text_buffer_insert_interactive() at the cursor * position. * * Return value: whether text was actually inserted **/ gboolean gtk_text_buffer_insert_interactive_at_cursor (GtkTextBuffer *buffer, const gchar *text, gint len, gboolean default_editable) { GtkTextIter iter; g_return_val_if_fail(GTK_IS_TEXT_BUFFER(buffer), FALSE); g_return_val_if_fail(text != NULL, FALSE); gtk_text_buffer_get_iter_at_mark(buffer, &iter, gtk_text_buffer_get_mark (buffer, "insert")); return gtk_text_buffer_insert_interactive (buffer, &iter, text, len, default_editable); } /** * gtk_text_buffer_insert_range: * @buffer: a #GtkTextBuffer * @iter: a position in @buffer * @start: a position in a #GtkTextBuffer * @end: another position in the same buffer as @start * * Copies text, tags, and pixbufs between @start and @end (the order * of @start and @end doesn't matter) and inserts the copy at @iter. * Used instead of simply getting/inserting text because it preserves * images and tags. If @start and @end are in a different buffer * from @buffer, the two buffers must share the same tag table. * * Implemented via multiple emissions of the insert_text and * apply_tag signals, so expect those. **/ void gtk_text_buffer_insert_range (GtkTextBuffer *buffer, GtkTextIter *iter, const GtkTextIter *start, const GtkTextIter *end) { g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer)); g_return_if_fail (iter != NULL); g_return_if_fail (start != NULL); g_return_if_fail (end != NULL); g_return_if_fail (gtk_text_iter_get_buffer (start) != gtk_text_iter_get_buffer (end)); g_return_if_fail (gtk_text_iter_get_buffer (start)->tag_table != buffer->tag_table); /* FIXME */ } gboolean gtk_text_buffer_insert_range_interactive (GtkTextBuffer *buffer, GtkTextIter *iter, const GtkTextIter *start, const GtkTextIter *end, gboolean default_editable) { g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), FALSE); g_return_val_if_fail (iter != NULL, FALSE); g_return_val_if_fail (start != NULL, FALSE); g_return_val_if_fail (end != NULL, FALSE); g_return_val_if_fail (gtk_text_iter_get_buffer (start) != gtk_text_iter_get_buffer (end), FALSE); g_return_val_if_fail (gtk_text_iter_get_buffer (start)->tag_table != buffer->tag_table, FALSE); /* FIXME */ return FALSE; } /** * gtk_text_buffer_insert_with_tags: * @buffer: a #GtkTextBuffer * @iter: an iterator in @buffer * @text: UTF-8 text * @len: length of @text, or -1 * @first_tag: first tag to apply to @text * @Varargs: NULL-terminated list of tags to apply * * Inserts @text into @buffer at @iter, applying the list of tags to * the newly-inserted text. The last tag specified must be NULL to * terminate the list. Equivalent to calling gtk_text_buffer_insert(), * then gtk_text_buffer_apply_tag() on the inserted text; * gtk_text_buffer_insert_with_tags() is just a convenience function. **/ void gtk_text_buffer_insert_with_tags (GtkTextBuffer *buffer, GtkTextIter *iter, const gchar *text, gint len, GtkTextTag *first_tag, ...) { gint start_offset; GtkTextIter start; va_list args; GtkTextTag *tag; g_return_if_fail (GTK_IS_TEXT_BUFFER(buffer)); g_return_if_fail (iter != NULL); g_return_if_fail (text != NULL); start_offset = gtk_text_iter_get_offset (iter); gtk_text_buffer_insert (buffer, iter, text, len); if (first_tag == NULL) return; gtk_text_buffer_get_iter_at_offset (buffer, &start, start_offset); va_start (args, first_tag); tag = first_tag; while (tag) { gtk_text_buffer_apply_tag (buffer, tag, &start, iter); tag = va_arg (args, GtkTextTag*); } va_end (args); } /** * gtk_text_buffer_insert_with_tags_by_name: * @buffer: a #GtkTextBuffer * @iter: position in @buffer * @text: UTF-8 text * @len: length of @text, or -1 * @first_tag_name: name of a tag to apply to @text * @Varargs: more tag names * * Same as gtk_text_buffer_insert_with_tags(), but allows you * to pass in tag names instead of tag objects. **/ void gtk_text_buffer_insert_with_tags_by_name (GtkTextBuffer *buffer, GtkTextIter *iter, const gchar *text, gint len, const gchar *first_tag_name, ...) { gint start_offset; GtkTextIter start; va_list args; const gchar *tag_name; g_return_if_fail (GTK_IS_TEXT_BUFFER(buffer)); g_return_if_fail (iter != NULL); g_return_if_fail (text != NULL); start_offset = gtk_text_iter_get_offset (iter); gtk_text_buffer_insert (buffer, iter, text, len); if (first_tag_name == NULL) return; gtk_text_buffer_get_iter_at_offset (buffer, &start, start_offset); va_start (args, first_tag_name); tag_name = first_tag_name; while (tag_name) { GtkTextTag *tag; tag = gtk_text_tag_table_lookup (buffer->tag_table, tag_name); if (tag == NULL) { g_warning ("%s: no tag with name '%s'!", G_STRLOC, tag_name); return; } gtk_text_buffer_apply_tag (buffer, tag, &start, iter); tag_name = va_arg (args, const gchar*); } va_end (args); } /* * Deletion */ static void gtk_text_buffer_real_delete_text(GtkTextBuffer *buffer, GtkTextIter *start, GtkTextIter *end, gboolean interactive) { g_return_if_fail(GTK_IS_TEXT_BUFFER(buffer)); g_return_if_fail(start != NULL); g_return_if_fail(end != NULL); gtk_text_btree_delete(start, end); /* may have deleted the selection... */ gtk_text_buffer_update_primary_selection(buffer); gtk_signal_emit(GTK_OBJECT(buffer), signals[CHANGED]); gtk_text_buffer_set_modified(buffer, TRUE); } static void gtk_text_buffer_emit_delete (GtkTextBuffer *buffer, GtkTextIter *start, GtkTextIter *end, gboolean interactive) { g_return_if_fail(GTK_IS_TEXT_BUFFER(buffer)); g_return_if_fail(start != NULL); g_return_if_fail(end != NULL); if (gtk_text_iter_equal(start, end)) return; gtk_text_iter_reorder (start, end); /* Somewhat annoyingly, if you try to delete the final newline * the BTree will put it back; which means you can't deduce the * final contents of the buffer purely by monitoring insert/delete * signals on the buffer. But if you delete the final newline, any * tags on the newline will go away, oddly. See comment in * gtktextbtree.c. This is all sort of annoying, but really hard * to fix. */ gtk_signal_emit(GTK_OBJECT(buffer), signals[DELETE_TEXT], start, end, interactive); } /** * gtk_text_buffer_delete: * @buffer: a #GtkTextBuffer * @start: a position in @buffer * @end: another position in @buffer * * Deletes text between @start and @end. The order of @start and @end * is not actually relevant; gtk_text_buffer_delete() will reorder * them. This function actually emits the "delete_text" signal, and * the default handler of that signal deletes the text. Because the * buffer is modified, all outstanding iterators become invalid after * calling this function; however, the @start and @end will be * re-initialized to point to the location where text was deleted. * * Note that the final newline in the buffer may not be deleted; a * #GtkTextBuffer always contains at least one newline. You can * safely include the final newline in the range [@start,@end) but it * won't be affected by the deletion. * **/ void gtk_text_buffer_delete (GtkTextBuffer *buffer, GtkTextIter *start, GtkTextIter *end) { g_return_if_fail(GTK_IS_TEXT_BUFFER(buffer)); g_return_if_fail(start != NULL); g_return_if_fail(end != NULL); gtk_text_buffer_emit_delete(buffer, start, end, FALSE); } /** * gtk_text_buffer_delete_interactive: * @buffer: a #GtkTextBuffer * @start_iter: start of range to delete * @end_iter: end of range * @default_editable: whether the buffer is editable by default * * Deletes all editable text in the given range. * Calls gtk_text_buffer_delete() for each editable sub-range of * [@start,@end). @start and @end are revalidated to point to * the location of the last deleted range, or left untouched if * no text was deleted. * * Return value: whether some text was actually deleted **/ gboolean gtk_text_buffer_delete_interactive (GtkTextBuffer *buffer, GtkTextIter *start_iter, GtkTextIter *end_iter, gboolean default_editable) { GtkTextMark *end_mark; GtkTextMark *start_mark; GtkTextIter iter; gboolean current_state; gboolean deleted_stuff = FALSE; /* Delete all editable text in the range start_iter, end_iter */ g_return_val_if_fail(GTK_IS_TEXT_BUFFER(buffer), FALSE); g_return_val_if_fail (start_iter != NULL, FALSE); g_return_val_if_fail (end_iter != NULL, FALSE); gtk_text_iter_reorder (start_iter, end_iter); start_mark = gtk_text_buffer_create_mark (buffer, NULL, start_iter, TRUE); end_mark = gtk_text_buffer_create_mark (buffer, NULL, end_iter, FALSE); iter = *start_iter; current_state = gtk_text_iter_editable (&iter, default_editable); while (TRUE) { gboolean new_state; gboolean done = FALSE; GtkTextIter end; gtk_text_iter_forward_to_tag_toggle (&iter, NULL); gtk_text_buffer_get_iter_at_mark (buffer, &end, end_mark); if (gtk_text_iter_compare (&iter, &end) >= 0) { done = TRUE; iter = end; /* clamp to the last boundary */ } new_state = gtk_text_iter_editable (&iter, default_editable); if (current_state == new_state) { if (done) { if (current_state) { /* We're ending an editable region. Delete said region. */ GtkTextIter start; gtk_text_buffer_get_iter_at_mark (buffer, &start, start_mark); gtk_text_buffer_emit_delete (buffer, &start, &iter, TRUE); deleted_stuff = TRUE; /* revalidate user's iterators. */ *start_iter = start; *end_iter = iter; } break; } else continue; } if (current_state && !new_state) { /* End of an editable region. Delete it. */ GtkTextIter start; gtk_text_buffer_get_iter_at_mark (buffer, &start, start_mark); gtk_text_buffer_emit_delete (buffer, &start, &iter, TRUE); current_state = FALSE; deleted_stuff = TRUE; /* revalidate user's iterators. */ *start_iter = start; *end_iter = iter; } else { /* We are at the start of an editable region. We won't be deleting * the previous region. Move start mark to start of this region. */ g_assert (!current_state && new_state); gtk_text_buffer_move_mark (buffer, start_mark, &iter); current_state = TRUE; } if (done) break; } gtk_text_buffer_delete_mark (buffer, start_mark); gtk_text_buffer_delete_mark (buffer, end_mark); return deleted_stuff; } /* * Extracting textual buffer contents */ /** * gtk_text_buffer_get_text: * @buffer: a #GtkTextBuffer * @start: start of a range * @end: end of a range * @include_hidden_chars: whether to include invisible text * * Returns the text in the range [@start,@end). Excludes undisplayed * text (text marked with tags that set the invisibility attribute) if * @include_hidden_chars is FALSE. Does not include characters * representing embedded images, so byte and character indexes into * the returned string do not correspond to byte * and character indexes into the buffer. Contrast with * gtk_text_buffer_get_slice(). * * Return value: an allocated UTF-8 string **/ gchar* gtk_text_buffer_get_text (GtkTextBuffer *buffer, const GtkTextIter *start, const GtkTextIter *end, gboolean include_hidden_chars) { g_return_val_if_fail(GTK_IS_TEXT_BUFFER(buffer), NULL); g_return_val_if_fail(start != NULL, NULL); g_return_val_if_fail(end != NULL, NULL); if (include_hidden_chars) return gtk_text_iter_get_text(start, end); else return gtk_text_iter_get_visible_text(start, end); } /** * gtk_text_buffer_get_slice: * @buffer: a #GtkTextBuffer * @start: start of a range * @end: end of a range * @include_hidden_chars: whether to include invisible text * * Returns the text in the range [@start,@end). Excludes undisplayed * text (text marked with tags that set the invisibility attribute) if * @include_hidden_chars is FALSE. The returned string includes a * 0xFFFD character whenever the buffer contains * embedded images, so byte and character indexes into * the returned string do correspond to byte * and character indexes into the buffer. Contrast with * gtk_text_buffer_get_text(). * * Return value: an allocated UTF-8 string **/ gchar* gtk_text_buffer_get_slice (GtkTextBuffer *buffer, const GtkTextIter *start, const GtkTextIter *end, gboolean include_hidden_chars) { g_return_val_if_fail(GTK_IS_TEXT_BUFFER(buffer), NULL); g_return_val_if_fail(start != NULL, NULL); g_return_val_if_fail(end != NULL, NULL); if (include_hidden_chars) return gtk_text_iter_get_slice(start, end); else return gtk_text_iter_get_visible_slice(start, end); } /* * Pixmaps */ void gtk_text_buffer_insert_pixbuf (GtkTextBuffer *buffer, GtkTextIter *iter, GdkPixbuf *pixbuf) { g_return_if_fail (GTK_IS_TEXT_BUFFER(buffer)); g_return_if_fail (iter != NULL); g_return_if_fail (GDK_IS_PIXBUF (pixbuf)); gtk_text_btree_insert_pixbuf (iter, pixbuf); /* FIXME pixbuf-specific signal like insert_text */ gtk_signal_emit (GTK_OBJECT(buffer), signals[CHANGED]); gtk_text_buffer_set_modified (buffer, TRUE); } /* * Mark manipulation */ static void gtk_text_buffer_mark_set (GtkTextBuffer *buffer, const GtkTextIter *location, GtkTextMark *mark) { /* IMO this should NOT work like insert_text and delete_text, where the real action happens in the default handler. The reason is that the default handler would be _required_, i.e. the whole widget would start breaking and segfaulting if the default handler didn't get run. So you can't really override the default handler or stop the emission; that is, this signal is purely for notification, and not to allow users to modify the default behavior. */ g_object_ref (G_OBJECT (mark)); gtk_signal_emit(GTK_OBJECT(buffer), signals[MARK_SET], location, mark); g_object_unref (G_OBJECT (mark)); } /** * gtk_text_buffer_set_mark: * @buffer: a #GtkTextBuffer * @mark_name: name of the mark * @iter: location for the mark. * @left_gravity: if the mark is created by this function, gravity for the new * mark. * @should_exist: if %TRUE, warn if the mark does not exist, and return * immediately. * * Move the mark to the given position, if not @should_exist, create the mark. * * Return value: mark **/ static GtkTextMark* gtk_text_buffer_set_mark (GtkTextBuffer *buffer, GtkTextMark *existing_mark, const gchar *mark_name, const GtkTextIter *iter, gboolean left_gravity, gboolean should_exist) { GtkTextIter location; GtkTextMark *mark; mark = gtk_text_btree_set_mark (get_btree (buffer), existing_mark, mark_name, left_gravity, iter, should_exist); if (gtk_text_btree_mark_is_insert(get_btree (buffer), mark) || gtk_text_btree_mark_is_selection_bound (get_btree (buffer), mark)) { gtk_text_buffer_update_primary_selection (buffer); } gtk_text_btree_get_iter_at_mark (get_btree (buffer), &location, mark); gtk_text_buffer_mark_set (buffer, &location, mark); return mark; } /** * gtk_text_buffer_create_mark: * @buffer: a #GtkTextBuffer * @mark_name: name for mark, or %NULL * @where: location to place mark * @left_gravity: whether the mark has left gravity * * Creates a mark at position @where. If @mark_name is %NULL, the mark * is anonymous; otherwise, the mark can be retrieved by name using * gtk_text_buffer_get_mark(). If a mark has left gravity, and text is * inserted at the mark's current location, the mark will be moved to * the left of the newly-inserted text. If the mark has right gravity * (@left_gravity = %FALSE), the mark will end up on the right of * newly-inserted text. The standard left-to-right cursor is a mark * with right gravity (when you type, the cursor stays on the right * side of the text you're typing). * * The caller of this function does not own a reference * to the returned #GtkTextMark, so you can ignore the return value * if you like. Marks are owned by the buffer and go away when the * buffer does. * * Emits the "mark_set" signal as notification of the mark's initial * placement. * * Return value: the new #GtkTextMark object **/ GtkTextMark* gtk_text_buffer_create_mark(GtkTextBuffer *buffer, const gchar *mark_name, const GtkTextIter *where, gboolean left_gravity) { g_return_val_if_fail (GTK_IS_TEXT_BUFFER(buffer), NULL); return gtk_text_buffer_set_mark (buffer, NULL, mark_name, where, left_gravity, FALSE); } /** * gtk_text_buffer_move_mark: * @buffer: a #GtkTextBuffer * @mark: a #GtkTextMark * @where: new location for @mark in @buffer * * Moves @mark to the new location @where. Emits the "mark_set" signal * as notification of the move. **/ void gtk_text_buffer_move_mark (GtkTextBuffer *buffer, GtkTextMark *mark, const GtkTextIter *where) { g_return_if_fail (GTK_IS_TEXT_MARK (mark)); g_return_if_fail (!gtk_text_mark_get_deleted (mark)); g_return_if_fail (GTK_IS_TEXT_BUFFER(buffer)); gtk_text_buffer_set_mark (buffer, mark, NULL, where, FALSE, TRUE); } /** * gtk_text_buffer_get_iter_at_mark: * @buffer: a #GtkTextBuffer * @iter: iterator to initialize * @mark: a #GtkTextMark in @buffer * * Initializes @iter with the current position of @mark. **/ void gtk_text_buffer_get_iter_at_mark (GtkTextBuffer *buffer, GtkTextIter *iter, GtkTextMark *mark) { g_return_if_fail (GTK_IS_TEXT_MARK (mark)); g_return_if_fail (!gtk_text_mark_get_deleted (mark)); g_return_if_fail (GTK_IS_TEXT_BUFFER(buffer)); gtk_text_btree_get_iter_at_mark (get_btree (buffer), iter, mark); } /** * gtk_text_buffer_delete_mark: * @buffer: a #GtkTextBuffer * @mark: a #GtkTextMark in @buffer * * Deletes @mark, so that it's no longer located anywhere in the * buffer. Removes the reference the buffer holds to the mark, so if * you haven't called g_object_ref() on the mark, it will be freed. Even * if the mark isn't freed, most operations on @mark become * invalid. There is no way to undelete a * mark. gtk_text_mark_get_deleted() will return TRUE after this * function has been called on a mark; gtk_text_mark_get_deleted() * indicates that a mark no longer belongs to a buffer. The "mark_deleted" * signal will be emitted as notification after the mark is deleted. **/ void gtk_text_buffer_delete_mark(GtkTextBuffer *buffer, GtkTextMark *mark) { g_return_if_fail (GTK_IS_TEXT_MARK (mark)); g_return_if_fail (!gtk_text_mark_get_deleted (mark)); g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer)); g_object_ref (G_OBJECT (mark)); gtk_text_btree_remove_mark (get_btree (buffer), mark); /* See rationale above for MARK_SET on why we emit this after * removing the mark, rather than removing the mark in a default * handler. */ gtk_signal_emit (GTK_OBJECT(buffer), signals[MARK_DELETED], mark); g_object_unref (G_OBJECT (mark)); } /** * gtk_text_buffer_get_mark: * @buffer: a #GtkTextBuffer * @name: a mark name * * Returns the mark named @name in buffer @buffer, or NULL if no such * mark exists in the buffer. * * Return value: a #GtkTextMark, or NULL **/ GtkTextMark* gtk_text_buffer_get_mark (GtkTextBuffer *buffer, const gchar *name) { GtkTextMark *mark; g_return_val_if_fail (GTK_IS_TEXT_BUFFER(buffer), NULL); g_return_val_if_fail (name != NULL, NULL); mark = gtk_text_btree_get_mark_by_name (get_btree (buffer), name); return mark; } /** * gtk_text_buffer_move_mark_by_name: * @buffer: a #GtkTextBuffer * @name: name of a mark * @where: new location for mark * * Moves the mark named @name (which must exist) to location @where. * See gtk_text_buffer_move_mark() for details. **/ void gtk_text_buffer_move_mark_by_name (GtkTextBuffer *buffer, const gchar *name, const GtkTextIter *where) { GtkTextMark *mark; g_return_if_fail (GTK_IS_TEXT_BUFFER(buffer)); g_return_if_fail (name != NULL); mark = gtk_text_btree_get_mark_by_name (get_btree (buffer), name); if (mark == NULL) { g_warning ("%s: no mark named '%s'", G_STRLOC, name); return; } gtk_text_buffer_move_mark (buffer, mark, where); } /** * gtk_text_buffer_delete_mark_by_name: * @buffer: a #GtkTextBuffer * @name: name of a mark in @buffer * * Deletes the mark named @name; the mark must exist. See * gtk_text_buffer_delete_mark() for details. **/ void gtk_text_buffer_delete_mark_by_name (GtkTextBuffer *buffer, const gchar *name) { GtkTextMark *mark; g_return_if_fail (GTK_IS_TEXT_BUFFER(buffer)); g_return_if_fail (name != NULL); mark = gtk_text_btree_get_mark_by_name (get_btree (buffer), name); if (mark == NULL) { g_warning ("%s: no mark named '%s'", G_STRLOC, name); return; } gtk_text_buffer_delete_mark (buffer, mark); } /** * gtk_text_buffer_get_insert: * @buffer: a #GtkTextBuffer * * Returns the mark that represents the cursor (insertion point). * Equivalent to calling gtk_text_buffer_get_mark() to get the mark * name "insert," but very slightly more efficient, and involves less * typing. * * Return value: insertion point mark **/ GtkTextMark* gtk_text_buffer_get_insert (GtkTextBuffer *buffer) { g_return_val_if_fail(GTK_IS_TEXT_BUFFER(buffer), NULL); /* FIXME use struct member in btree */ return gtk_text_buffer_get_mark (buffer, "insert"); } /** * gtk_text_buffer_get_selection_bound: * @buffer: a #GtkTextBuffer * * Returns the mark that represents the selection bound. Equivalent * to calling gtk_text_buffer_get_mark() to get the mark name * "selection_bound," but very slightly more efficient, and involves * less typing. * * The currently-selected text in @buffer is the region between the * "selection_bound" and "insert" marks. If "selection_bound" and * "insert" are in the same place, then there is no current selection. * gtk_text_buffer_get_selection_bounds() is another convenient function * for handling the selection, if you just want to know whether there's a * selection and what its bounds are. * * Return value: selection bound mark **/ GtkTextMark* gtk_text_buffer_get_selection_bound (GtkTextBuffer *buffer) { g_return_val_if_fail(GTK_IS_TEXT_BUFFER(buffer), NULL); /* FIXME use struct member in btree */ return gtk_text_buffer_get_mark (buffer, "selection_bound"); } GtkTextChildAnchor* gtk_text_buffer_create_child_anchor (GtkTextBuffer *buffer, const GtkTextIter *where) { /* FIXME: Implement? */ return NULL; } void gtk_text_buffer_move_child_anchor (GtkTextBuffer *buffer, GtkTextChildAnchor *anchor, GtkTextIter *where) { } void gtk_text_buffer_delete_child_anchor (GtkTextBuffer *buffer, GtkTextChildAnchor *anchor) { } void gtk_text_buffer_get_iter_at_child_anchor (GtkTextBuffer *buffer, GtkTextIter *iter, GtkTextChildAnchor *anchor) { } /** * gtk_text_buffer_place_cursor: * @buffer: a #GtkTextBuffer * @where: where to put the cursor * * This function moves the "insert" and "selection_bound" marks * simultaneously. If you move them to the same place in two steps * with gtk_text_buffer_move_mark(), you will temporarily select a * region in between their old and new locations, which can be pretty * inefficient since the temporarily-selected region will force stuff * to be recalculated. This function moves them as a unit, which can * be optimized. **/ void gtk_text_buffer_place_cursor (GtkTextBuffer *buffer, const GtkTextIter *where) { GtkTextIter real; g_return_if_fail(GTK_IS_TEXT_BUFFER(buffer)); real = *where; if (gtk_text_iter_is_last (&real)) gtk_text_iter_prev_char (&real); gtk_text_btree_place_cursor (get_btree (buffer), &real); gtk_text_buffer_mark_set (buffer, &real, gtk_text_buffer_get_mark (buffer, "insert")); gtk_text_buffer_mark_set (buffer, &real, gtk_text_buffer_get_mark (buffer, "selection_bound")); } /* * Tags */ /** * gtk_text_buffer_create_tag: * @buffer: a #GtkTextBuffer * @tag_name: name of the new tag, or %NULL * * Creates a tag and adds it to the tag table for @buffer. * Equivalent to calling gtk_text_tag_new() and then adding the * tag to the buffer's tag table. The returned tag has its refcount * incremented, as if you'd called gtk_text_tag_new(). * * If @tag_name is %NULL, the tag is anonymous. * * Return value: a new tag **/ GtkTextTag* gtk_text_buffer_create_tag(GtkTextBuffer *buffer, const gchar *tag_name) { GtkTextTag *tag; g_return_val_if_fail(GTK_IS_TEXT_BUFFER(buffer), NULL); tag = gtk_text_tag_new(tag_name); gtk_text_tag_table_add(get_table (buffer), tag); return tag; } static void gtk_text_buffer_real_apply_tag (GtkTextBuffer *buffer, GtkTextTag *tag, const GtkTextIter *start, const GtkTextIter *end) { gtk_text_btree_tag (start, end, tag, TRUE); } static void gtk_text_buffer_real_remove_tag (GtkTextBuffer *buffer, GtkTextTag *tag, const GtkTextIter *start, const GtkTextIter *end) { gtk_text_btree_tag (start, end, tag, FALSE); } static void gtk_text_buffer_emit_tag(GtkTextBuffer *buffer, GtkTextTag *tag, gboolean apply, const GtkTextIter *start, const GtkTextIter *end) { GtkTextIter start_tmp = *start; GtkTextIter end_tmp = *end; g_return_if_fail(tag != NULL); gtk_text_iter_reorder (&start_tmp, &end_tmp); if (apply) gtk_signal_emit (GTK_OBJECT(buffer), signals[APPLY_TAG], tag, &start_tmp, &end_tmp); else gtk_signal_emit (GTK_OBJECT(buffer), signals[REMOVE_TAG], tag, &start_tmp, &end_tmp); } void gtk_text_buffer_apply_tag(GtkTextBuffer *buffer, GtkTextTag *tag, const GtkTextIter *start, const GtkTextIter *end) { g_return_if_fail(GTK_IS_TEXT_BUFFER(buffer)); g_return_if_fail(GTK_IS_TEXT_TAG (tag)); g_return_if_fail(start != NULL); g_return_if_fail(end != NULL); gtk_text_buffer_emit_tag(buffer, tag, TRUE, start, end); } void gtk_text_buffer_remove_tag(GtkTextBuffer *buffer, GtkTextTag *tag, const GtkTextIter *start, const GtkTextIter *end) { g_return_if_fail(GTK_IS_TEXT_BUFFER(buffer)); g_return_if_fail(GTK_IS_TEXT_TAG (tag)); g_return_if_fail(start != NULL); g_return_if_fail(end != NULL); gtk_text_buffer_emit_tag(buffer, tag, FALSE, start, end); } void gtk_text_buffer_apply_tag_by_name (GtkTextBuffer *buffer, const gchar *name, const GtkTextIter *start, const GtkTextIter *end) { GtkTextTag *tag; g_return_if_fail(GTK_IS_TEXT_BUFFER(buffer)); g_return_if_fail(name != NULL); g_return_if_fail(start != NULL); g_return_if_fail(end != NULL); tag = gtk_text_tag_table_lookup(get_table (buffer), name); if (tag == NULL) { g_warning("Unknown tag `%s'", name); return; } gtk_text_buffer_emit_tag(buffer, tag, TRUE, start, end); } void gtk_text_buffer_remove_tag_by_name (GtkTextBuffer *buffer, const gchar *name, const GtkTextIter *start, const GtkTextIter *end) { GtkTextTag *tag; g_return_if_fail(GTK_IS_TEXT_BUFFER(buffer)); g_return_if_fail(name != NULL); g_return_if_fail(start != NULL); g_return_if_fail(end != NULL); tag = gtk_text_tag_table_lookup(get_table (buffer), name); if (tag == NULL) { g_warning("Unknown tag `%s'", name); return; } gtk_text_buffer_emit_tag(buffer, tag, FALSE, start, end); } /* * Obtain various iterators */ void gtk_text_buffer_get_iter_at_line_offset (GtkTextBuffer *buffer, GtkTextIter *iter, gint line_number, gint char_offset) { g_return_if_fail (iter != NULL); g_return_if_fail (GTK_IS_TEXT_BUFFER(buffer)); gtk_text_btree_get_iter_at_line_char (get_btree (buffer), iter, line_number, char_offset); } void gtk_text_buffer_get_iter_at_line_index (GtkTextBuffer *buffer, GtkTextIter *iter, gint line_number, gint byte_index) { g_return_if_fail (iter != NULL); g_return_if_fail (GTK_IS_TEXT_BUFFER(buffer)); gtk_text_btree_get_iter_at_line_byte (get_btree (buffer), iter, line_number, byte_index); } void gtk_text_buffer_get_iter_at_line (GtkTextBuffer *buffer, GtkTextIter *iter, gint line_number) { g_return_if_fail(iter != NULL); g_return_if_fail(GTK_IS_TEXT_BUFFER(buffer)); gtk_text_buffer_get_iter_at_line_offset (buffer, iter, line_number, 0); } void gtk_text_buffer_get_iter_at_offset (GtkTextBuffer *buffer, GtkTextIter *iter, gint char_offset) { g_return_if_fail(iter != NULL); g_return_if_fail(GTK_IS_TEXT_BUFFER(buffer)); gtk_text_btree_get_iter_at_char(get_btree (buffer), iter, char_offset); } void gtk_text_buffer_get_last_iter (GtkTextBuffer *buffer, GtkTextIter *iter) { g_return_if_fail(iter != NULL); g_return_if_fail(GTK_IS_TEXT_BUFFER(buffer)); gtk_text_btree_get_last_iter(get_btree (buffer), iter); } void gtk_text_buffer_get_bounds (GtkTextBuffer *buffer, GtkTextIter *start, GtkTextIter *end) { g_return_if_fail(start != NULL); g_return_if_fail(end != NULL); g_return_if_fail(GTK_IS_TEXT_BUFFER(buffer)); gtk_text_btree_get_iter_at_char(get_btree (buffer), start, 0); gtk_text_btree_get_last_iter(get_btree (buffer), end); } /* * Modified flag */ gboolean gtk_text_buffer_modified (GtkTextBuffer *buffer) { g_return_val_if_fail(GTK_IS_TEXT_BUFFER(buffer), FALSE); return buffer->modified; } void gtk_text_buffer_set_modified (GtkTextBuffer *buffer, gboolean setting) { gboolean fixed_setting; g_return_if_fail(GTK_IS_TEXT_BUFFER(buffer)); fixed_setting = setting != FALSE; if (buffer->modified == fixed_setting) return; else { buffer->modified = fixed_setting; gtk_signal_emit(GTK_OBJECT(buffer), signals[MODIFIED_CHANGED]); } } /* * Assorted other stuff */ gint gtk_text_buffer_get_line_count(GtkTextBuffer *buffer) { g_return_val_if_fail(GTK_IS_TEXT_BUFFER(buffer), 0); return gtk_text_btree_line_count(get_btree (buffer)); } gint gtk_text_buffer_get_char_count(GtkTextBuffer *buffer) { g_return_val_if_fail(GTK_IS_TEXT_BUFFER(buffer), 0); return gtk_text_btree_char_count(get_btree (buffer)); } GSList* gtk_text_buffer_get_tags (GtkTextBuffer *buffer, const GtkTextIter *iter) { GSList *retval = NULL; GtkTextTag** tags; gint count = 0; tags = gtk_text_btree_get_tags(iter, &count); if (count > 0) { gint i; gtk_text_tag_array_sort(tags, count); i = 0; while (i < count) { retval = g_slist_prepend(retval, tags[i]); ++i; } retval = g_slist_reverse(retval); } if (tags) g_free(tags); return retval; } /* Called when we lose the primary selection. */ static void clipboard_clear_cb (GtkClipboard *clipboard, gpointer data) { /* Move selection_bound to the insertion point */ GtkTextIter insert; GtkTextIter selection_bound; GtkTextBuffer *buffer = GTK_TEXT_BUFFER (data); gtk_text_buffer_get_iter_at_mark(buffer, &insert, gtk_text_buffer_get_mark (buffer, "insert")); gtk_text_buffer_get_iter_at_mark(buffer, &selection_bound, gtk_text_buffer_get_mark (buffer, "selection_bound")); if (!gtk_text_iter_equal(&insert, &selection_bound)) gtk_text_buffer_move_mark(buffer, gtk_text_buffer_get_mark (buffer, "selection_bound"), &insert); } /* Called when we have the primary selection and someone else wants our * data in order to paste it. */ static void clipboard_get_cb (GtkClipboard *clipboard, GtkSelectionData *selection_data, guint info, gpointer data) { GtkTextBuffer *buffer = GTK_TEXT_BUFFER(data); gchar *str; GtkTextIter start, end; if (gtk_text_buffer_get_selection_bounds(buffer, &start, &end)) { /* Extract the selected text */ str = gtk_text_iter_get_visible_text(&start, &end); gtk_selection_data_set_text (selection_data, str); g_free (str); } } /* Called when we request a paste and receive the data */ static void clipboard_received (GtkClipboard *clipboard, const gchar *str, gpointer data) { ClipboardRequest *request_data = data; GtkTextBuffer *buffer = request_data->buffer; if (str) { gboolean reselect; GtkTextIter insert_point; GtkTextMark *paste_point_override; paste_point_override = gtk_text_buffer_get_mark (buffer, "gtk_paste_point_override"); if (paste_point_override != NULL) { gtk_text_buffer_get_iter_at_mark(buffer, &insert_point, paste_point_override); gtk_text_buffer_delete_mark(buffer, gtk_text_buffer_get_mark (buffer, "gtk_paste_point_override")); } else { gtk_text_buffer_get_iter_at_mark(buffer, &insert_point, gtk_text_buffer_get_mark (buffer, "insert")); } reselect = FALSE; /* FIXME ALL OF THIS - I think that the "best method" is that when pasting * with the cursor inside the selection area, you replace the selection * with the new text, otherwise, you simply insert the new text at * the point where the click occured, unselecting any selected text. * * This probably is best implemented as a "replace_selection" flag in * ClipboardRequest. */ #if 0 if ((TRUE/* Text is selected FIXME */) && (!buffer->have_selection || request_data->is_clipboard)) { reselect = TRUE; if (buffer->have_selection) { /* FIXME Delete currently-selected chars but don't give up X selection since we'll use the newly-pasted stuff as a new X selection */ } else ; /* FIXME Delete selected chars and give up X selection */ } #endif if (request_data->interactive) gtk_text_buffer_insert_interactive (buffer, &insert_point, str, -1, request_data->default_editable); else gtk_text_buffer_insert (buffer, &insert_point, str, -1); if (reselect) ; /* FIXME Select the region of text we just inserted */ } g_object_unref (G_OBJECT (buffer)); g_free (request_data); } static void gtk_text_buffer_update_primary_selection (GtkTextBuffer *buffer) { static const GtkTargetEntry targets[] = { { "STRING", 0, TARGET_STRING }, { "TEXT", 0, TARGET_TEXT }, { "COMPOUND_TEXT", 0, TARGET_COMPOUND_TEXT }, { "UTF8_STRING", 0, TARGET_UTF8_STRING } }; GtkTextIter start; GtkTextIter end; GtkClipboard *clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY); /* Determine whether we have a selection and adjust X selection * accordingly. */ if (!gtk_text_buffer_get_selection_bounds (buffer, &start, &end)) { if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (buffer)) gtk_clipboard_clear (clipboard); } else { /* Even if we already have the selection, we need to update our * timestamp. */ if (!gtk_clipboard_set_with_owner (clipboard, targets, G_N_ELEMENTS (targets), clipboard_get_cb, clipboard_clear_cb, G_OBJECT (buffer))) clipboard_clear_cb (clipboard, buffer); } } static void paste (GtkTextBuffer *buffer, gboolean is_clipboard, gboolean interactive, gboolean default_editable) { ClipboardRequest *data = g_new (ClipboardRequest, 1); data->buffer = buffer; g_object_ref (G_OBJECT (buffer)); data->interactive = interactive; data->default_editable = default_editable; gtk_clipboard_request_text (gtk_clipboard_get (is_clipboard ? GDK_NONE : GDK_SELECTION_PRIMARY), clipboard_received, data); } void gtk_text_buffer_paste_primary (GtkTextBuffer *buffer, GtkTextIter *override_location, gboolean default_editable) { if (override_location != NULL) gtk_text_buffer_create_mark(buffer, "gtk_paste_point_override", override_location, FALSE); paste (buffer, FALSE, TRUE, default_editable); } void gtk_text_buffer_paste_clipboard (GtkTextBuffer *buffer, gboolean default_editable) { paste (buffer, TRUE, TRUE, default_editable); } gboolean gtk_text_buffer_delete_selection (GtkTextBuffer *buffer, gboolean interactive, gboolean default_editable) { GtkTextIter start; GtkTextIter end; if (!gtk_text_buffer_get_selection_bounds(buffer, &start, &end)) { return FALSE; /* No selection */ } else { if (interactive) gtk_text_buffer_delete_interactive (buffer, &start, &end, default_editable); else gtk_text_buffer_delete (buffer, &start, &end); return TRUE; /* We deleted stuff */ } } static void cut_or_copy(GtkTextBuffer *buffer, gboolean delete_region_after, gboolean interactive, gboolean default_editable) { /* We prefer to cut the selected region between selection_bound and insertion point. If that region is empty, then we cut the region between the "anchor" and the insertion point (this is for C-space and M-w and other Emacs-style copy/yank keys). Note that insert and selection_bound are guaranteed to exist, but the anchor only exists sometimes. */ GtkTextIter start; GtkTextIter end; if (!gtk_text_buffer_get_selection_bounds(buffer, &start, &end)) { /* Let's try the anchor thing */ GtkTextMark * anchor = gtk_text_buffer_get_mark (buffer, "anchor"); if (anchor == NULL) return; else { gtk_text_buffer_get_iter_at_mark(buffer, &end, anchor); gtk_text_iter_reorder(&start, &end); } } if (!gtk_text_iter_equal(&start, &end)) { GtkClipboard *clipboard = gtk_clipboard_get (GDK_NONE); gchar *text; text = gtk_text_iter_get_visible_text (&start, &end); gtk_clipboard_set_text (clipboard, text, -1); g_free (text); if (delete_region_after) { if (interactive) gtk_text_buffer_delete_interactive (buffer, &start, &end, default_editable); else gtk_text_buffer_delete (buffer, &start, &end); } } } void gtk_text_buffer_cut_clipboard (GtkTextBuffer *buffer, gboolean default_editable) { cut_or_copy (buffer, TRUE, TRUE, default_editable); } void gtk_text_buffer_copy_clipboard (GtkTextBuffer *buffer) { cut_or_copy (buffer, FALSE, TRUE, TRUE); } /** * gtk_text_buffer_get_selection_bounds: * @buffer: a #GtkTextBuffer * @start: iterator to initialize with selection start * @end: iterator to initialize with selection end * * Returns %TRUE if some text is selected; places the bounds * of the selection in @start and @end (if the selection has length 0, * then @start and @end are filled in with the same value). * @start and @end will be in ascending order. If @start and @end are * NULL, then they are not filled in, but the return value still indicates * whether text is selected. * * Return value: whether the selection has nonzero length **/ gboolean gtk_text_buffer_get_selection_bounds (GtkTextBuffer *buffer, GtkTextIter *start, GtkTextIter *end) { g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), FALSE); return gtk_text_btree_get_selection_bounds (get_btree (buffer), start, end); } /* * Debug spew */ void _gtk_text_buffer_spew(GtkTextBuffer *buffer) { gtk_text_btree_spew(get_btree (buffer)); }