forked from AuroraMiddleware/gtk
5673310364
gtk_text_buffer_insert_markup was leaking all the tags that it inserts.
4894 lines
152 KiB
C
4894 lines
152 KiB
C
/* GTK - The GIMP Toolkit
|
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* gtktextbuffer.c Copyright (C) 2000 Red Hat, Inc.
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* Copyright (C) 2004 Nokia Corporation
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
|
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* License as published by the Free Software Foundation; either
|
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#include "config.h"
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#include <string.h>
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#include <stdarg.h>
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#include "gtkmarshalers.h"
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#include "gtktextbuffer.h"
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#include "gtktexthistoryprivate.h"
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#include "gtktextbufferprivate.h"
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#include "gtktextbtree.h"
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#include "gtktextiterprivate.h"
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#include "gtktexttagprivate.h"
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#include "gtktexttagtableprivate.h"
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#include "gtkprivate.h"
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#include "gtkintl.h"
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#define DEFAULT_MAX_UNDO 200
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/**
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* SECTION:gtktextbuffer
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* @Short_description: Stores attributed text for display in a GtkTextView
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* @Title: GtkTextBuffer
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* @See_also: #GtkTextView, #GtkTextIter, #GtkTextMark
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*
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* You may wish to begin by reading the
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* [text widget conceptual overview][TextWidget]
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* which gives an overview of all the objects and data
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* types related to the text widget and how they work together.
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*/
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typedef struct _GtkTextLogAttrCache GtkTextLogAttrCache;
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struct _GtkTextBufferPrivate
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{
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GtkTextTagTable *tag_table;
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GtkTextBTree *btree;
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GSList *selection_clipboards;
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GdkContentProvider *selection_content;
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GtkTextLogAttrCache *log_attr_cache;
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GtkTextHistory *history;
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guint user_action_count;
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/* Whether the buffer has been modified since last save */
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guint modified : 1;
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guint has_selection : 1;
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guint can_undo : 1;
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guint can_redo : 1;
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};
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typedef struct _ClipboardRequest ClipboardRequest;
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struct _ClipboardRequest
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{
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GtkTextBuffer *buffer;
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guint interactive : 1;
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guint default_editable : 1;
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guint replace_selection : 1;
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};
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enum {
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INSERT_TEXT,
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INSERT_PAINTABLE,
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INSERT_CHILD_ANCHOR,
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DELETE_RANGE,
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CHANGED,
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MODIFIED_CHANGED,
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MARK_SET,
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MARK_DELETED,
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APPLY_TAG,
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REMOVE_TAG,
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BEGIN_USER_ACTION,
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END_USER_ACTION,
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PASTE_DONE,
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UNDO,
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REDO,
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LAST_SIGNAL
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};
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enum {
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PROP_0,
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/* Construct */
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PROP_TAG_TABLE,
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/* Normal */
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PROP_TEXT,
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PROP_HAS_SELECTION,
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PROP_CURSOR_POSITION,
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PROP_COPY_TARGET_LIST,
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PROP_PASTE_TARGET_LIST,
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PROP_CAN_UNDO,
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PROP_CAN_REDO,
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PROP_ENABLE_UNDO,
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LAST_PROP
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};
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static void gtk_text_buffer_finalize (GObject *object);
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static void gtk_text_buffer_real_insert_text (GtkTextBuffer *buffer,
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GtkTextIter *iter,
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const char *text,
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int len);
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static void gtk_text_buffer_real_insert_paintable (GtkTextBuffer *buffer,
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GtkTextIter *iter,
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GdkPaintable *paintable);
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static void gtk_text_buffer_real_insert_anchor (GtkTextBuffer *buffer,
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GtkTextIter *iter,
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GtkTextChildAnchor *anchor);
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static void gtk_text_buffer_real_delete_range (GtkTextBuffer *buffer,
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GtkTextIter *start,
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GtkTextIter *end);
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static void gtk_text_buffer_real_apply_tag (GtkTextBuffer *buffer,
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GtkTextTag *tag,
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const GtkTextIter *start_char,
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const GtkTextIter *end_char);
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static void gtk_text_buffer_real_remove_tag (GtkTextBuffer *buffer,
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GtkTextTag *tag,
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const GtkTextIter *start_char,
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const GtkTextIter *end_char);
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static void gtk_text_buffer_real_changed (GtkTextBuffer *buffer);
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static void gtk_text_buffer_real_mark_set (GtkTextBuffer *buffer,
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const GtkTextIter *iter,
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GtkTextMark *mark);
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static void gtk_text_buffer_real_undo (GtkTextBuffer *buffer);
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static void gtk_text_buffer_real_redo (GtkTextBuffer *buffer);
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static GtkTextBTree* get_btree (GtkTextBuffer *buffer);
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static void free_log_attr_cache (GtkTextLogAttrCache *cache);
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static void remove_all_selection_clipboards (GtkTextBuffer *buffer);
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static void update_selection_clipboards (GtkTextBuffer *buffer);
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static void gtk_text_buffer_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec);
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static void gtk_text_buffer_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec);
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static void gtk_text_buffer_history_change_state (gpointer funcs_data,
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gboolean is_modified,
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gboolean can_undo,
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gboolean can_redo);
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static void gtk_text_buffer_history_insert (gpointer funcs_data,
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guint begin,
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guint end,
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const char *text,
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guint len);
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static void gtk_text_buffer_history_delete (gpointer funcs_data,
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guint begin,
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guint end,
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const char *expected_text,
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guint len);
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static void gtk_text_buffer_history_select (gpointer funcs_data,
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int selection_insert,
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int selection_bound);
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static guint signals[LAST_SIGNAL] = { 0 };
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static GParamSpec *text_buffer_props[LAST_PROP];
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G_DEFINE_TYPE_WITH_PRIVATE (GtkTextBuffer, gtk_text_buffer, G_TYPE_OBJECT)
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#define GTK_TYPE_TEXT_BUFFER_CONTENT (gtk_text_buffer_content_get_type ())
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#define GTK_TEXT_BUFFER_CONTENT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_TEXT_BUFFER_CONTENT, GtkTextBufferContent))
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#define GTK_IS_TEXT_BUFFER_CONTENT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_TEXT_BUFFER_CONTENT))
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#define GTK_TEXT_BUFFER_CONTENT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_TEXT_BUFFER_CONTENT, GtkTextBufferContentClass))
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#define GTK_IS_TEXT_BUFFER_CONTENT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_TEXT_BUFFER_CONTENT))
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#define GTK_TEXT_BUFFER_CONTENT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_TEXT_BUFFER_CONTENT, GtkTextBufferContentClass))
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typedef struct _GtkTextBufferContent GtkTextBufferContent;
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typedef struct _GtkTextBufferContentClass GtkTextBufferContentClass;
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struct _GtkTextBufferContent
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{
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GdkContentProvider parent;
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GtkTextBuffer *text_buffer;
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};
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struct _GtkTextBufferContentClass
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{
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GdkContentProviderClass parent_class;
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};
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GType gtk_text_buffer_content_get_type (void) G_GNUC_CONST;
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G_DEFINE_TYPE (GtkTextBufferContent, gtk_text_buffer_content, GDK_TYPE_CONTENT_PROVIDER)
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static GtkTextHistoryFuncs history_funcs = {
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gtk_text_buffer_history_change_state,
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gtk_text_buffer_history_insert,
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gtk_text_buffer_history_delete,
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gtk_text_buffer_history_select,
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};
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static GdkContentFormats *
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gtk_text_buffer_content_ref_formats (GdkContentProvider *provider)
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{
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GtkTextBufferContent *content = GTK_TEXT_BUFFER_CONTENT (provider);
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if (content->text_buffer)
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return gdk_content_formats_new_for_gtype (GTK_TYPE_TEXT_BUFFER);
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else
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return gdk_content_formats_new (NULL, 0);
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}
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static gboolean
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gtk_text_buffer_content_get_value (GdkContentProvider *provider,
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GValue *value,
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GError **error)
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{
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GtkTextBufferContent *content = GTK_TEXT_BUFFER_CONTENT (provider);
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if (G_VALUE_HOLDS (value, GTK_TYPE_TEXT_BUFFER) &&
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content->text_buffer != NULL)
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{
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g_value_set_object (value, content->text_buffer);
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return TRUE;
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}
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return GDK_CONTENT_PROVIDER_CLASS (gtk_text_buffer_content_parent_class)->get_value (provider, value, error);
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}
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static void
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gtk_text_buffer_content_detach (GdkContentProvider *provider,
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GdkClipboard *clipboard)
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{
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GtkTextBufferContent *content = GTK_TEXT_BUFFER_CONTENT (provider);
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GtkTextIter insert;
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GtkTextIter selection_bound;
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if (content->text_buffer == NULL)
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return;
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/* Move selection_bound to the insertion point */
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gtk_text_buffer_get_iter_at_mark (content->text_buffer, &insert,
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gtk_text_buffer_get_insert (content->text_buffer));
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gtk_text_buffer_get_iter_at_mark (content->text_buffer, &selection_bound,
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gtk_text_buffer_get_selection_bound (content->text_buffer));
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if (!gtk_text_iter_equal (&insert, &selection_bound))
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gtk_text_buffer_move_mark (content->text_buffer,
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gtk_text_buffer_get_selection_bound (content->text_buffer),
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&insert);
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}
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static void
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gtk_text_buffer_content_class_init (GtkTextBufferContentClass *class)
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{
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GdkContentProviderClass *provider_class = GDK_CONTENT_PROVIDER_CLASS (class);
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provider_class->ref_formats = gtk_text_buffer_content_ref_formats;
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provider_class->get_value = gtk_text_buffer_content_get_value;
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provider_class->detach_clipboard = gtk_text_buffer_content_detach;
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}
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static void
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gtk_text_buffer_content_init (GtkTextBufferContent *content)
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{
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}
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static GdkContentProvider *
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gtk_text_buffer_content_new (GtkTextBuffer *buffer)
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{
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GtkTextBufferContent *content;
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content = g_object_new (GTK_TYPE_TEXT_BUFFER_CONTENT, NULL);
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content->text_buffer = g_object_ref (buffer);
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return GDK_CONTENT_PROVIDER (content);
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}
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static void
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gtk_text_buffer_deserialize_text_plain_finish (GObject *source,
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GAsyncResult *result,
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gpointer deserializer)
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{
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GOutputStream *stream = G_OUTPUT_STREAM (source);
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GtkTextBuffer *buffer;
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GtkTextIter start, end;
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GError *error = NULL;
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gssize written;
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written = g_output_stream_splice_finish (stream, result, &error);
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if (written < 0)
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{
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gdk_content_deserializer_return_error (deserializer, error);
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return;
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}
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buffer = g_value_get_object (gdk_content_deserializer_get_value (deserializer));
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gtk_text_buffer_get_end_iter (buffer, &end);
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gtk_text_buffer_insert (buffer,
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&end,
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g_memory_output_stream_steal_data (G_MEMORY_OUTPUT_STREAM (
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g_filter_output_stream_get_base_stream (G_FILTER_OUTPUT_STREAM (stream)))),
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-1);
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gtk_text_buffer_get_bounds (buffer, &start, &end);
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gtk_text_buffer_select_range (buffer, &start, &end);
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gdk_content_deserializer_return_success (deserializer);
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}
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static void
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gtk_text_buffer_deserialize_text_plain (GdkContentDeserializer *deserializer)
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{
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GOutputStream *output, *filter;
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GCharsetConverter *converter;
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GtkTextBuffer *buffer;
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GError *error = NULL;
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buffer = gtk_text_buffer_new (NULL);
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g_value_set_object (gdk_content_deserializer_get_value (deserializer),
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buffer);
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/* validates the stream */
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converter = g_charset_converter_new ("utf-8", "utf-8", &error);
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if (converter == NULL)
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{
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gdk_content_deserializer_return_error (deserializer, error);
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return;
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}
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g_charset_converter_set_use_fallback (converter, TRUE);
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output = g_memory_output_stream_new_resizable ();
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filter = g_converter_output_stream_new (output, G_CONVERTER (converter));
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g_object_unref (output);
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g_object_unref (converter);
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g_output_stream_splice_async (filter,
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gdk_content_deserializer_get_input_stream (deserializer),
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G_OUTPUT_STREAM_SPLICE_CLOSE_SOURCE | G_OUTPUT_STREAM_SPLICE_CLOSE_TARGET,
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gdk_content_deserializer_get_priority (deserializer),
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gdk_content_deserializer_get_cancellable (deserializer),
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gtk_text_buffer_deserialize_text_plain_finish,
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deserializer);
|
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g_object_unref (filter);
|
||
}
|
||
|
||
static void
|
||
gtk_text_buffer_serialize_text_plain_finish (GObject *source,
|
||
GAsyncResult *result,
|
||
gpointer serializer)
|
||
{
|
||
GOutputStream *stream = G_OUTPUT_STREAM (source);
|
||
GError *error = NULL;
|
||
|
||
if (!g_output_stream_write_all_finish (stream, result, NULL, &error))
|
||
gdk_content_serializer_return_error (serializer, error);
|
||
else
|
||
gdk_content_serializer_return_success (serializer);
|
||
}
|
||
|
||
static void
|
||
gtk_text_buffer_serialize_text_plain (GdkContentSerializer *serializer)
|
||
{
|
||
GtkTextBuffer *buffer;
|
||
GtkTextIter start, end;
|
||
char *str;
|
||
|
||
buffer = g_value_get_object (gdk_content_serializer_get_value (serializer));
|
||
|
||
if (gtk_text_buffer_get_selection_bounds (buffer, &start, &end))
|
||
{
|
||
str = gtk_text_iter_get_visible_text (&start, &end);
|
||
}
|
||
else
|
||
{
|
||
str = g_strdup ("");
|
||
}
|
||
gdk_content_serializer_set_task_data (serializer, str, g_free);
|
||
|
||
g_output_stream_write_all_async (gdk_content_serializer_get_output_stream (serializer),
|
||
str,
|
||
strlen (str) + 1,
|
||
gdk_content_serializer_get_priority (serializer),
|
||
gdk_content_serializer_get_cancellable (serializer),
|
||
gtk_text_buffer_serialize_text_plain_finish,
|
||
serializer);
|
||
}
|
||
|
||
static void
|
||
gtk_text_buffer_register_serializers (void)
|
||
{
|
||
gdk_content_register_deserializer ("text/plain;charset=utf-8",
|
||
GTK_TYPE_TEXT_BUFFER,
|
||
gtk_text_buffer_deserialize_text_plain,
|
||
NULL,
|
||
NULL);
|
||
gdk_content_register_serializer (GTK_TYPE_TEXT_BUFFER,
|
||
"text/plain;charset=utf-8",
|
||
gtk_text_buffer_serialize_text_plain,
|
||
NULL,
|
||
NULL);
|
||
}
|
||
|
||
static void
|
||
gtk_text_buffer_class_init (GtkTextBufferClass *klass)
|
||
{
|
||
GObjectClass *object_class = G_OBJECT_CLASS (klass);
|
||
|
||
object_class->finalize = gtk_text_buffer_finalize;
|
||
object_class->set_property = gtk_text_buffer_set_property;
|
||
object_class->get_property = gtk_text_buffer_get_property;
|
||
|
||
klass->insert_text = gtk_text_buffer_real_insert_text;
|
||
klass->insert_paintable = gtk_text_buffer_real_insert_paintable;
|
||
klass->insert_child_anchor = gtk_text_buffer_real_insert_anchor;
|
||
klass->delete_range = gtk_text_buffer_real_delete_range;
|
||
klass->apply_tag = gtk_text_buffer_real_apply_tag;
|
||
klass->remove_tag = gtk_text_buffer_real_remove_tag;
|
||
klass->changed = gtk_text_buffer_real_changed;
|
||
klass->mark_set = gtk_text_buffer_real_mark_set;
|
||
klass->undo = gtk_text_buffer_real_undo;
|
||
klass->redo = gtk_text_buffer_real_redo;
|
||
|
||
/* Construct */
|
||
text_buffer_props[PROP_TAG_TABLE] =
|
||
g_param_spec_object ("tag-table",
|
||
P_("Tag Table"),
|
||
P_("Text Tag Table"),
|
||
GTK_TYPE_TEXT_TAG_TABLE,
|
||
GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY);
|
||
|
||
/* Normal properties */
|
||
|
||
/**
|
||
* GtkTextBuffer:text:
|
||
*
|
||
* The text content of the buffer. Without child widgets and images,
|
||
* see gtk_text_buffer_get_text() for more information.
|
||
*/
|
||
text_buffer_props[PROP_TEXT] =
|
||
g_param_spec_string ("text",
|
||
P_("Text"),
|
||
P_("Current text of the buffer"),
|
||
"",
|
||
GTK_PARAM_READWRITE);
|
||
|
||
/**
|
||
* GtkTextBuffer:has-selection:
|
||
*
|
||
* Whether the buffer has some text currently selected.
|
||
*/
|
||
text_buffer_props[PROP_HAS_SELECTION] =
|
||
g_param_spec_boolean ("has-selection",
|
||
P_("Has selection"),
|
||
P_("Whether the buffer has some text currently selected"),
|
||
FALSE,
|
||
GTK_PARAM_READABLE);
|
||
|
||
/**
|
||
* GtkTextBuffer:can-undo:
|
||
*
|
||
* The #GtkTextBuffer:can-undo property denotes that the buffer can undo the last
|
||
* applied action.
|
||
*/
|
||
text_buffer_props[PROP_CAN_UNDO] =
|
||
g_param_spec_boolean ("can-undo",
|
||
P_("Can Undo"),
|
||
P_("If the buffer can have the last action undone"),
|
||
FALSE,
|
||
GTK_PARAM_READABLE);
|
||
|
||
/**
|
||
* GtkTextBuffer:can-redo:
|
||
*
|
||
* The #GtkTextBuffer:can-redo property denotes that the buffer can reapply the
|
||
* last undone action.
|
||
*/
|
||
text_buffer_props[PROP_CAN_REDO] =
|
||
g_param_spec_boolean ("can-redo",
|
||
P_("Can Redo"),
|
||
P_("If the buffer can have the last undone action reapplied"),
|
||
FALSE,
|
||
GTK_PARAM_READABLE);
|
||
|
||
/**
|
||
* GtkTextBuffer:enable-undo:
|
||
*
|
||
* The #GtkTextBuffer:enable-undo property denotes if support for undoing and
|
||
* redoing changes to the buffer is allowed.
|
||
*/
|
||
text_buffer_props[PROP_ENABLE_UNDO] =
|
||
g_param_spec_boolean ("enable-undo",
|
||
"Enable Undo",
|
||
"Enable support for undo and redo in the text view",
|
||
TRUE,
|
||
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
|
||
|
||
/**
|
||
* GtkTextBuffer:cursor-position:
|
||
*
|
||
* The position of the insert mark (as offset from the beginning
|
||
* of the buffer). It is useful for getting notified when the
|
||
* cursor moves.
|
||
*/
|
||
text_buffer_props[PROP_CURSOR_POSITION] =
|
||
g_param_spec_int ("cursor-position",
|
||
P_("Cursor position"),
|
||
P_("The position of the insert mark (as offset from the beginning of the buffer)"),
|
||
0, G_MAXINT,
|
||
0,
|
||
GTK_PARAM_READABLE);
|
||
|
||
/**
|
||
* GtkTextBuffer:copy-target-list:
|
||
*
|
||
* The list of targets this buffer supports for clipboard copying
|
||
* and as DND source.
|
||
*/
|
||
text_buffer_props[PROP_COPY_TARGET_LIST] =
|
||
g_param_spec_boxed ("copy-target-list",
|
||
P_("Copy target list"),
|
||
P_("The list of targets this buffer supports for clipboard copying and DND source"),
|
||
GDK_TYPE_CONTENT_FORMATS,
|
||
GTK_PARAM_READABLE);
|
||
|
||
/**
|
||
* GtkTextBuffer:paste-target-list:
|
||
*
|
||
* The list of targets this buffer supports for clipboard pasting
|
||
* and as DND destination.
|
||
*/
|
||
text_buffer_props[PROP_PASTE_TARGET_LIST] =
|
||
g_param_spec_boxed ("paste-target-list",
|
||
P_("Paste target list"),
|
||
P_("The list of targets this buffer supports for clipboard pasting and DND destination"),
|
||
GDK_TYPE_CONTENT_FORMATS,
|
||
GTK_PARAM_READABLE);
|
||
|
||
g_object_class_install_properties (object_class, LAST_PROP, text_buffer_props);
|
||
|
||
/**
|
||
* GtkTextBuffer::insert-text:
|
||
* @textbuffer: the object which received the signal
|
||
* @location: position to insert @text in @textbuffer
|
||
* @text: the UTF-8 text to be inserted
|
||
* @len: length of the inserted text in bytes
|
||
*
|
||
* The ::insert-text signal is emitted to insert text in a #GtkTextBuffer.
|
||
* Insertion actually occurs in the default handler.
|
||
*
|
||
* Note that if your handler runs before the default handler it must not
|
||
* invalidate the @location iter (or has to revalidate it).
|
||
* The default signal handler revalidates it to point to the end of the
|
||
* inserted text.
|
||
*
|
||
* See also:
|
||
* gtk_text_buffer_insert(),
|
||
* gtk_text_buffer_insert_range().
|
||
*/
|
||
signals[INSERT_TEXT] =
|
||
g_signal_new (I_("insert-text"),
|
||
G_OBJECT_CLASS_TYPE (object_class),
|
||
G_SIGNAL_RUN_LAST,
|
||
G_STRUCT_OFFSET (GtkTextBufferClass, insert_text),
|
||
NULL, NULL,
|
||
_gtk_marshal_VOID__BOXED_STRING_INT,
|
||
G_TYPE_NONE,
|
||
3,
|
||
GTK_TYPE_TEXT_ITER | G_SIGNAL_TYPE_STATIC_SCOPE,
|
||
G_TYPE_STRING | G_SIGNAL_TYPE_STATIC_SCOPE,
|
||
G_TYPE_INT);
|
||
g_signal_set_va_marshaller (signals[INSERT_TEXT], G_TYPE_FROM_CLASS (klass),
|
||
_gtk_marshal_VOID__BOXED_STRING_INTv);
|
||
|
||
/**
|
||
* GtkTextBuffer::insert-paintable:
|
||
* @textbuffer: the object which received the signal
|
||
* @location: position to insert @paintable in @textbuffer
|
||
* @paintable: the #GdkPaintable to be inserted
|
||
*
|
||
* The #GtkTextBuffer::insert-paintable signal is emitted to insert a #GdkPaintable
|
||
* in a #GtkTextBuffer. Insertion actually occurs in the default handler.
|
||
*
|
||
* Note that if your handler runs before the default handler it must not
|
||
* invalidate the @location iter (or has to revalidate it).
|
||
* The default signal handler revalidates it to be placed after the
|
||
* inserted @paintable.
|
||
*
|
||
* See also: gtk_text_buffer_insert_paintable().
|
||
*/
|
||
signals[INSERT_PAINTABLE] =
|
||
g_signal_new (I_("insert-paintable"),
|
||
G_OBJECT_CLASS_TYPE (object_class),
|
||
G_SIGNAL_RUN_LAST,
|
||
G_STRUCT_OFFSET (GtkTextBufferClass, insert_paintable),
|
||
NULL, NULL,
|
||
_gtk_marshal_VOID__BOXED_OBJECT,
|
||
G_TYPE_NONE,
|
||
2,
|
||
GTK_TYPE_TEXT_ITER | G_SIGNAL_TYPE_STATIC_SCOPE,
|
||
GDK_TYPE_PAINTABLE);
|
||
g_signal_set_va_marshaller (signals[INSERT_PAINTABLE],
|
||
G_TYPE_FROM_CLASS (klass),
|
||
_gtk_marshal_VOID__BOXED_OBJECTv);
|
||
|
||
|
||
/**
|
||
* GtkTextBuffer::insert-child-anchor:
|
||
* @textbuffer: the object which received the signal
|
||
* @location: position to insert @anchor in @textbuffer
|
||
* @anchor: the #GtkTextChildAnchor to be inserted
|
||
*
|
||
* The #GtkTextBuffer::insert-child-anchor signal is emitted to insert a
|
||
* #GtkTextChildAnchor in a #GtkTextBuffer.
|
||
* Insertion actually occurs in the default handler.
|
||
*
|
||
* Note that if your handler runs before the default handler it must
|
||
* not invalidate the @location iter (or has to revalidate it).
|
||
* The default signal handler revalidates it to be placed after the
|
||
* inserted @anchor.
|
||
*
|
||
* See also: gtk_text_buffer_insert_child_anchor().
|
||
*/
|
||
signals[INSERT_CHILD_ANCHOR] =
|
||
g_signal_new (I_("insert-child-anchor"),
|
||
G_OBJECT_CLASS_TYPE (object_class),
|
||
G_SIGNAL_RUN_LAST,
|
||
G_STRUCT_OFFSET (GtkTextBufferClass, insert_child_anchor),
|
||
NULL, NULL,
|
||
_gtk_marshal_VOID__BOXED_OBJECT,
|
||
G_TYPE_NONE,
|
||
2,
|
||
GTK_TYPE_TEXT_ITER | G_SIGNAL_TYPE_STATIC_SCOPE,
|
||
GTK_TYPE_TEXT_CHILD_ANCHOR);
|
||
g_signal_set_va_marshaller (signals[INSERT_CHILD_ANCHOR],
|
||
G_TYPE_FROM_CLASS (klass),
|
||
_gtk_marshal_VOID__BOXED_OBJECTv);
|
||
|
||
/**
|
||
* GtkTextBuffer::delete-range:
|
||
* @textbuffer: the object which received the signal
|
||
* @start: the start of the range to be deleted
|
||
* @end: the end of the range to be deleted
|
||
*
|
||
* The #GtkTextBuffer::delete-range signal is emitted to delete a range
|
||
* from a #GtkTextBuffer.
|
||
*
|
||
* Note that if your handler runs before the default handler it must not
|
||
* invalidate the @start and @end iters (or has to revalidate them).
|
||
* The default signal handler revalidates the @start and @end iters to
|
||
* both point to the location where text was deleted. Handlers
|
||
* which run after the default handler (see g_signal_connect_after())
|
||
* do not have access to the deleted text.
|
||
*
|
||
* See also: gtk_text_buffer_delete().
|
||
*/
|
||
signals[DELETE_RANGE] =
|
||
g_signal_new (I_("delete-range"),
|
||
G_OBJECT_CLASS_TYPE (object_class),
|
||
G_SIGNAL_RUN_LAST,
|
||
G_STRUCT_OFFSET (GtkTextBufferClass, delete_range),
|
||
NULL, NULL,
|
||
_gtk_marshal_VOID__BOXED_BOXED,
|
||
G_TYPE_NONE,
|
||
2,
|
||
GTK_TYPE_TEXT_ITER | G_SIGNAL_TYPE_STATIC_SCOPE,
|
||
GTK_TYPE_TEXT_ITER | G_SIGNAL_TYPE_STATIC_SCOPE);
|
||
g_signal_set_va_marshaller (signals[DELETE_RANGE],
|
||
G_TYPE_FROM_CLASS (klass),
|
||
_gtk_marshal_VOID__BOXED_BOXEDv);
|
||
|
||
/**
|
||
* GtkTextBuffer::changed:
|
||
* @textbuffer: the object which received the signal
|
||
*
|
||
* The #GtkTextBuffer::changed signal is emitted when the content of a #GtkTextBuffer
|
||
* has changed.
|
||
*/
|
||
signals[CHANGED] =
|
||
g_signal_new (I_("changed"),
|
||
G_OBJECT_CLASS_TYPE (object_class),
|
||
G_SIGNAL_RUN_LAST,
|
||
G_STRUCT_OFFSET (GtkTextBufferClass, changed),
|
||
NULL, NULL,
|
||
NULL,
|
||
G_TYPE_NONE,
|
||
0);
|
||
|
||
/**
|
||
* GtkTextBuffer::modified-changed:
|
||
* @textbuffer: the object which received the signal
|
||
*
|
||
* The #GtkTextBuffer::modified-changed signal is emitted when the modified bit of a
|
||
* #GtkTextBuffer flips.
|
||
*
|
||
* See also:
|
||
* gtk_text_buffer_set_modified().
|
||
*/
|
||
signals[MODIFIED_CHANGED] =
|
||
g_signal_new (I_("modified-changed"),
|
||
G_OBJECT_CLASS_TYPE (object_class),
|
||
G_SIGNAL_RUN_LAST,
|
||
G_STRUCT_OFFSET (GtkTextBufferClass, modified_changed),
|
||
NULL, NULL,
|
||
NULL,
|
||
G_TYPE_NONE,
|
||
0);
|
||
|
||
/**
|
||
* GtkTextBuffer::mark-set:
|
||
* @textbuffer: the object which received the signal
|
||
* @location: The location of @mark in @textbuffer
|
||
* @mark: The mark that is set
|
||
*
|
||
* The #GtkTextBuffer::mark-set signal is emitted as notification
|
||
* after a #GtkTextMark is set.
|
||
*
|
||
* See also:
|
||
* gtk_text_buffer_create_mark(),
|
||
* gtk_text_buffer_move_mark().
|
||
*/
|
||
signals[MARK_SET] =
|
||
g_signal_new (I_("mark-set"),
|
||
G_OBJECT_CLASS_TYPE (object_class),
|
||
G_SIGNAL_RUN_LAST,
|
||
G_STRUCT_OFFSET (GtkTextBufferClass, mark_set),
|
||
NULL, NULL,
|
||
_gtk_marshal_VOID__BOXED_OBJECT,
|
||
G_TYPE_NONE,
|
||
2,
|
||
GTK_TYPE_TEXT_ITER,
|
||
GTK_TYPE_TEXT_MARK);
|
||
g_signal_set_va_marshaller (signals[MARK_SET],
|
||
G_TYPE_FROM_CLASS (klass),
|
||
_gtk_marshal_VOID__BOXED_OBJECTv);
|
||
|
||
/**
|
||
* GtkTextBuffer::mark-deleted:
|
||
* @textbuffer: the object which received the signal
|
||
* @mark: The mark that was deleted
|
||
*
|
||
* The #GtkTextBuffer::mark-deleted signal is emitted as notification
|
||
* after a #GtkTextMark is deleted.
|
||
*
|
||
* See also:
|
||
* gtk_text_buffer_delete_mark().
|
||
*/
|
||
signals[MARK_DELETED] =
|
||
g_signal_new (I_("mark-deleted"),
|
||
G_OBJECT_CLASS_TYPE (object_class),
|
||
G_SIGNAL_RUN_LAST,
|
||
G_STRUCT_OFFSET (GtkTextBufferClass, mark_deleted),
|
||
NULL, NULL,
|
||
NULL,
|
||
G_TYPE_NONE,
|
||
1,
|
||
GTK_TYPE_TEXT_MARK);
|
||
|
||
/**
|
||
* GtkTextBuffer::apply-tag:
|
||
* @textbuffer: the object which received the signal
|
||
* @tag: the applied tag
|
||
* @start: the start of the range the tag is applied to
|
||
* @end: the end of the range the tag is applied to
|
||
*
|
||
* The #GtkTextBuffer::apply-tag signal is emitted to apply a tag to a
|
||
* range of text in a #GtkTextBuffer.
|
||
* Applying actually occurs in the default handler.
|
||
*
|
||
* Note that if your handler runs before the default handler it must not
|
||
* invalidate the @start and @end iters (or has to revalidate them).
|
||
*
|
||
* See also:
|
||
* gtk_text_buffer_apply_tag(),
|
||
* gtk_text_buffer_insert_with_tags(),
|
||
* gtk_text_buffer_insert_range().
|
||
*/
|
||
signals[APPLY_TAG] =
|
||
g_signal_new (I_("apply-tag"),
|
||
G_OBJECT_CLASS_TYPE (object_class),
|
||
G_SIGNAL_RUN_LAST,
|
||
G_STRUCT_OFFSET (GtkTextBufferClass, apply_tag),
|
||
NULL, NULL,
|
||
_gtk_marshal_VOID__OBJECT_BOXED_BOXED,
|
||
G_TYPE_NONE,
|
||
3,
|
||
GTK_TYPE_TEXT_TAG,
|
||
GTK_TYPE_TEXT_ITER,
|
||
GTK_TYPE_TEXT_ITER);
|
||
g_signal_set_va_marshaller (signals[APPLY_TAG],
|
||
G_TYPE_FROM_CLASS (klass),
|
||
_gtk_marshal_VOID__OBJECT_BOXED_BOXEDv);
|
||
|
||
|
||
/**
|
||
* GtkTextBuffer::remove-tag:
|
||
* @textbuffer: the object which received the signal
|
||
* @tag: the tag to be removed
|
||
* @start: the start of the range the tag is removed from
|
||
* @end: the end of the range the tag is removed from
|
||
*
|
||
* The #GtkTextBuffer::remove-tag signal is emitted to remove all occurrences
|
||
* of @tag from a range of text in a #GtkTextBuffer.
|
||
* Removal actually occurs in the default handler.
|
||
*
|
||
* Note that if your handler runs before the default handler it must not
|
||
* invalidate the @start and @end iters (or has to revalidate them).
|
||
*
|
||
* See also:
|
||
* gtk_text_buffer_remove_tag().
|
||
*/
|
||
signals[REMOVE_TAG] =
|
||
g_signal_new (I_("remove-tag"),
|
||
G_OBJECT_CLASS_TYPE (object_class),
|
||
G_SIGNAL_RUN_LAST,
|
||
G_STRUCT_OFFSET (GtkTextBufferClass, remove_tag),
|
||
NULL, NULL,
|
||
_gtk_marshal_VOID__OBJECT_BOXED_BOXED,
|
||
G_TYPE_NONE,
|
||
3,
|
||
GTK_TYPE_TEXT_TAG,
|
||
GTK_TYPE_TEXT_ITER,
|
||
GTK_TYPE_TEXT_ITER);
|
||
g_signal_set_va_marshaller (signals[REMOVE_TAG],
|
||
G_TYPE_FROM_CLASS (klass),
|
||
_gtk_marshal_VOID__OBJECT_BOXED_BOXEDv);
|
||
|
||
/**
|
||
* GtkTextBuffer::begin-user-action:
|
||
* @textbuffer: the object which received the signal
|
||
*
|
||
* The #GtkTextBuffer::begin-user-action signal is emitted at the beginning of a single
|
||
* user-visible operation on a #GtkTextBuffer.
|
||
*
|
||
* See also:
|
||
* gtk_text_buffer_begin_user_action(),
|
||
* gtk_text_buffer_insert_interactive(),
|
||
* gtk_text_buffer_insert_range_interactive(),
|
||
* gtk_text_buffer_delete_interactive(),
|
||
* gtk_text_buffer_backspace(),
|
||
* gtk_text_buffer_delete_selection().
|
||
*/
|
||
signals[BEGIN_USER_ACTION] =
|
||
g_signal_new (I_("begin-user-action"),
|
||
G_OBJECT_CLASS_TYPE (object_class),
|
||
G_SIGNAL_RUN_LAST,
|
||
G_STRUCT_OFFSET (GtkTextBufferClass, begin_user_action),
|
||
NULL, NULL,
|
||
NULL,
|
||
G_TYPE_NONE,
|
||
0);
|
||
|
||
/**
|
||
* GtkTextBuffer::end-user-action:
|
||
* @textbuffer: the object which received the signal
|
||
*
|
||
* The #GtkTextBuffer::end-user-action signal is emitted at the end of a single
|
||
* user-visible operation on the #GtkTextBuffer.
|
||
*
|
||
* See also:
|
||
* gtk_text_buffer_end_user_action(),
|
||
* gtk_text_buffer_insert_interactive(),
|
||
* gtk_text_buffer_insert_range_interactive(),
|
||
* gtk_text_buffer_delete_interactive(),
|
||
* gtk_text_buffer_backspace(),
|
||
* gtk_text_buffer_delete_selection(),
|
||
* gtk_text_buffer_backspace().
|
||
*/
|
||
signals[END_USER_ACTION] =
|
||
g_signal_new (I_("end-user-action"),
|
||
G_OBJECT_CLASS_TYPE (object_class),
|
||
G_SIGNAL_RUN_LAST,
|
||
G_STRUCT_OFFSET (GtkTextBufferClass, end_user_action),
|
||
NULL, NULL,
|
||
NULL,
|
||
G_TYPE_NONE,
|
||
0);
|
||
|
||
/**
|
||
* GtkTextBuffer::paste-done:
|
||
* @textbuffer: the object which received the signal
|
||
* @clipboard: the #GdkClipboard pasted from
|
||
*
|
||
* The paste-done signal is emitted after paste operation has been completed.
|
||
* This is useful to properly scroll the view to the end of the pasted text.
|
||
* See gtk_text_buffer_paste_clipboard() for more details.
|
||
*/
|
||
signals[PASTE_DONE] =
|
||
g_signal_new (I_("paste-done"),
|
||
G_OBJECT_CLASS_TYPE (object_class),
|
||
G_SIGNAL_RUN_LAST,
|
||
G_STRUCT_OFFSET (GtkTextBufferClass, paste_done),
|
||
NULL, NULL,
|
||
NULL,
|
||
G_TYPE_NONE,
|
||
1,
|
||
GDK_TYPE_CLIPBOARD);
|
||
|
||
/**
|
||
* GtkTextBuffer::redo:
|
||
* @buffer: a #GtkTextBuffer
|
||
*
|
||
* The "redo" signal is emitted when a request has been made to redo the
|
||
* previously undone operation.
|
||
*/
|
||
signals[REDO] =
|
||
g_signal_new (I_("redo"),
|
||
G_OBJECT_CLASS_TYPE (object_class),
|
||
G_SIGNAL_RUN_LAST,
|
||
G_STRUCT_OFFSET (GtkTextBufferClass, redo),
|
||
NULL, NULL, NULL, G_TYPE_NONE, 0);
|
||
|
||
/**
|
||
* GtkTextBuffer::undo:
|
||
* @buffer: a #GtkTextBuffer
|
||
*
|
||
* The "undo" signal is emitted when a request has been made to undo the
|
||
* previous operation or set of operations that have been grouped together.
|
||
*/
|
||
signals[UNDO] =
|
||
g_signal_new (I_("undo"),
|
||
G_OBJECT_CLASS_TYPE (object_class),
|
||
G_SIGNAL_RUN_LAST,
|
||
G_STRUCT_OFFSET (GtkTextBufferClass, undo),
|
||
NULL, NULL, NULL, G_TYPE_NONE, 0);
|
||
|
||
gtk_text_buffer_register_serializers ();
|
||
}
|
||
|
||
static void
|
||
gtk_text_buffer_init (GtkTextBuffer *buffer)
|
||
{
|
||
buffer->priv = gtk_text_buffer_get_instance_private (buffer);
|
||
buffer->priv->tag_table = NULL;
|
||
buffer->priv->history = gtk_text_history_new (&history_funcs, buffer);
|
||
|
||
gtk_text_history_set_max_undo_levels (buffer->priv->history, DEFAULT_MAX_UNDO);
|
||
}
|
||
|
||
static void
|
||
set_table (GtkTextBuffer *buffer, GtkTextTagTable *table)
|
||
{
|
||
GtkTextBufferPrivate *priv = buffer->priv;
|
||
|
||
g_return_if_fail (priv->tag_table == NULL);
|
||
|
||
if (table)
|
||
{
|
||
priv->tag_table = table;
|
||
g_object_ref (priv->tag_table);
|
||
_gtk_text_tag_table_add_buffer (table, buffer);
|
||
}
|
||
}
|
||
|
||
static GtkTextTagTable*
|
||
get_table (GtkTextBuffer *buffer)
|
||
{
|
||
GtkTextBufferPrivate *priv = buffer->priv;
|
||
|
||
if (priv->tag_table == NULL)
|
||
{
|
||
priv->tag_table = gtk_text_tag_table_new ();
|
||
_gtk_text_tag_table_add_buffer (priv->tag_table, buffer);
|
||
}
|
||
|
||
return priv->tag_table;
|
||
}
|
||
|
||
static void
|
||
gtk_text_buffer_set_property (GObject *object,
|
||
guint prop_id,
|
||
const GValue *value,
|
||
GParamSpec *pspec)
|
||
{
|
||
GtkTextBuffer *text_buffer;
|
||
|
||
text_buffer = GTK_TEXT_BUFFER (object);
|
||
|
||
switch (prop_id)
|
||
{
|
||
case PROP_ENABLE_UNDO:
|
||
gtk_text_buffer_set_enable_undo (text_buffer, g_value_get_boolean (value));
|
||
break;
|
||
|
||
case PROP_TAG_TABLE:
|
||
set_table (text_buffer, g_value_get_object (value));
|
||
break;
|
||
|
||
case PROP_TEXT:
|
||
gtk_text_buffer_set_text (text_buffer,
|
||
g_value_get_string (value), -1);
|
||
break;
|
||
|
||
default:
|
||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||
break;
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_text_buffer_get_property (GObject *object,
|
||
guint prop_id,
|
||
GValue *value,
|
||
GParamSpec *pspec)
|
||
{
|
||
GtkTextBuffer *text_buffer;
|
||
GtkTextIter iter;
|
||
|
||
text_buffer = GTK_TEXT_BUFFER (object);
|
||
|
||
switch (prop_id)
|
||
{
|
||
case PROP_ENABLE_UNDO:
|
||
g_value_set_boolean (value, gtk_text_buffer_get_enable_undo (text_buffer));
|
||
break;
|
||
|
||
case PROP_TAG_TABLE:
|
||
g_value_set_object (value, get_table (text_buffer));
|
||
break;
|
||
|
||
case PROP_TEXT:
|
||
{
|
||
GtkTextIter start, end;
|
||
|
||
gtk_text_buffer_get_start_iter (text_buffer, &start);
|
||
gtk_text_buffer_get_end_iter (text_buffer, &end);
|
||
|
||
g_value_take_string (value,
|
||
gtk_text_buffer_get_text (text_buffer,
|
||
&start, &end, FALSE));
|
||
break;
|
||
}
|
||
|
||
case PROP_HAS_SELECTION:
|
||
g_value_set_boolean (value, text_buffer->priv->has_selection);
|
||
break;
|
||
|
||
case PROP_CURSOR_POSITION:
|
||
gtk_text_buffer_get_iter_at_mark (text_buffer, &iter,
|
||
gtk_text_buffer_get_insert (text_buffer));
|
||
g_value_set_int (value, gtk_text_iter_get_offset (&iter));
|
||
break;
|
||
|
||
case PROP_CAN_UNDO:
|
||
g_value_set_boolean (value, gtk_text_buffer_get_can_undo (text_buffer));
|
||
break;
|
||
|
||
case PROP_CAN_REDO:
|
||
g_value_set_boolean (value, gtk_text_buffer_get_can_redo (text_buffer));
|
||
break;
|
||
|
||
default:
|
||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||
break;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_new:
|
||
* @table: (allow-none): a tag table, or %NULL to create a new one
|
||
*
|
||
* Creates a new text buffer.
|
||
*
|
||
* Returns: a new text buffer
|
||
**/
|
||
GtkTextBuffer*
|
||
gtk_text_buffer_new (GtkTextTagTable *table)
|
||
{
|
||
GtkTextBuffer *text_buffer;
|
||
|
||
text_buffer = g_object_new (GTK_TYPE_TEXT_BUFFER, "tag-table", table, NULL);
|
||
|
||
return text_buffer;
|
||
}
|
||
|
||
static void
|
||
gtk_text_buffer_finalize (GObject *object)
|
||
{
|
||
GtkTextBuffer *buffer;
|
||
GtkTextBufferPrivate *priv;
|
||
|
||
buffer = GTK_TEXT_BUFFER (object);
|
||
priv = buffer->priv;
|
||
|
||
remove_all_selection_clipboards (buffer);
|
||
|
||
g_clear_object (&buffer->priv->history);
|
||
|
||
if (priv->tag_table)
|
||
{
|
||
_gtk_text_tag_table_remove_buffer (priv->tag_table, buffer);
|
||
g_object_unref (priv->tag_table);
|
||
priv->tag_table = NULL;
|
||
}
|
||
|
||
if (priv->btree)
|
||
{
|
||
_gtk_text_btree_unref (priv->btree);
|
||
priv->btree = NULL;
|
||
}
|
||
|
||
if (priv->log_attr_cache)
|
||
free_log_attr_cache (priv->log_attr_cache);
|
||
|
||
priv->log_attr_cache = NULL;
|
||
|
||
G_OBJECT_CLASS (gtk_text_buffer_parent_class)->finalize (object);
|
||
}
|
||
|
||
static GtkTextBTree*
|
||
get_btree (GtkTextBuffer *buffer)
|
||
{
|
||
GtkTextBufferPrivate *priv = buffer->priv;
|
||
|
||
if (priv->btree == NULL)
|
||
priv->btree = _gtk_text_btree_new (gtk_text_buffer_get_tag_table (buffer),
|
||
buffer);
|
||
|
||
return priv->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.
|
||
*
|
||
* Returns: (transfer none): 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
|
||
* @len is -1, @text must be nul-terminated. @text must be valid UTF-8.
|
||
**/
|
||
void
|
||
gtk_text_buffer_set_text (GtkTextBuffer *buffer,
|
||
const char *text,
|
||
int 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);
|
||
|
||
gtk_text_history_begin_irreversible_action (buffer->priv->history);
|
||
|
||
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);
|
||
}
|
||
|
||
gtk_text_history_end_irreversible_action (buffer->priv->history);
|
||
}
|
||
|
||
|
||
|
||
/*
|
||
* Insertion
|
||
*/
|
||
|
||
static void
|
||
gtk_text_buffer_real_insert_text (GtkTextBuffer *buffer,
|
||
GtkTextIter *iter,
|
||
const char *text,
|
||
int len)
|
||
{
|
||
g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
|
||
g_return_if_fail (iter != NULL);
|
||
|
||
gtk_text_history_text_inserted (buffer->priv->history,
|
||
gtk_text_iter_get_offset (iter),
|
||
text,
|
||
len);
|
||
|
||
_gtk_text_btree_insert (iter, text, len);
|
||
|
||
g_signal_emit (buffer, signals[CHANGED], 0);
|
||
g_object_notify_by_pspec (G_OBJECT (buffer), text_buffer_props[PROP_CURSOR_POSITION]);
|
||
}
|
||
|
||
static void
|
||
gtk_text_buffer_emit_insert (GtkTextBuffer *buffer,
|
||
GtkTextIter *iter,
|
||
const char *text,
|
||
int len)
|
||
{
|
||
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);
|
||
|
||
g_return_if_fail (g_utf8_validate (text, len, NULL));
|
||
|
||
if (len > 0)
|
||
{
|
||
g_signal_emit (buffer, signals[INSERT_TEXT], 0,
|
||
iter, text, len);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_insert:
|
||
* @buffer: a #GtkTextBuffer
|
||
* @iter: a position in the buffer
|
||
* @text: text in UTF-8 format
|
||
* @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 char *text,
|
||
int len)
|
||
{
|
||
g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
|
||
g_return_if_fail (iter != NULL);
|
||
g_return_if_fail (text != NULL);
|
||
g_return_if_fail (gtk_text_iter_get_buffer (iter) == buffer);
|
||
|
||
gtk_text_buffer_emit_insert (buffer, iter, text, len);
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_insert_at_cursor:
|
||
* @buffer: a #GtkTextBuffer
|
||
* @text: 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 char *text,
|
||
int 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_insert (buffer));
|
||
|
||
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).
|
||
*
|
||
* @default_editable indicates the editability of text that doesn't
|
||
* have a tag affecting editability applied to it. Typically the
|
||
* result of gtk_text_view_get_editable() is appropriate here.
|
||
*
|
||
* Returns: whether text was actually inserted
|
||
**/
|
||
gboolean
|
||
gtk_text_buffer_insert_interactive (GtkTextBuffer *buffer,
|
||
GtkTextIter *iter,
|
||
const char *text,
|
||
int len,
|
||
gboolean default_editable)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), FALSE);
|
||
g_return_val_if_fail (text != NULL, FALSE);
|
||
g_return_val_if_fail (gtk_text_iter_get_buffer (iter) == buffer, FALSE);
|
||
|
||
if (gtk_text_iter_can_insert (iter, default_editable))
|
||
{
|
||
gtk_text_buffer_begin_user_action (buffer);
|
||
gtk_text_buffer_emit_insert (buffer, iter, text, len);
|
||
gtk_text_buffer_end_user_action (buffer);
|
||
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.
|
||
*
|
||
* @default_editable indicates the editability of text that doesn't
|
||
* have a tag affecting editability applied to it. Typically the
|
||
* result of gtk_text_view_get_editable() is appropriate here.
|
||
*
|
||
* Returns: whether text was actually inserted
|
||
**/
|
||
gboolean
|
||
gtk_text_buffer_insert_interactive_at_cursor (GtkTextBuffer *buffer,
|
||
const char *text,
|
||
int 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_insert (buffer));
|
||
|
||
return gtk_text_buffer_insert_interactive (buffer, &iter, text, len,
|
||
default_editable);
|
||
}
|
||
|
||
static gboolean
|
||
possibly_not_text (gunichar ch,
|
||
gpointer user_data)
|
||
{
|
||
return ch == GTK_TEXT_UNKNOWN_CHAR;
|
||
}
|
||
|
||
static void
|
||
insert_text_range (GtkTextBuffer *buffer,
|
||
GtkTextIter *iter,
|
||
const GtkTextIter *orig_start,
|
||
const GtkTextIter *orig_end,
|
||
gboolean interactive)
|
||
{
|
||
char *text;
|
||
|
||
text = gtk_text_iter_get_text (orig_start, orig_end);
|
||
|
||
gtk_text_buffer_emit_insert (buffer, iter, text, -1);
|
||
|
||
g_free (text);
|
||
}
|
||
|
||
typedef struct _Range Range;
|
||
struct _Range
|
||
{
|
||
GtkTextBuffer *buffer;
|
||
GtkTextMark *start_mark;
|
||
GtkTextMark *end_mark;
|
||
GtkTextMark *whole_end_mark;
|
||
GtkTextIter *range_start;
|
||
GtkTextIter *range_end;
|
||
GtkTextIter *whole_end;
|
||
};
|
||
|
||
static Range*
|
||
save_range (GtkTextIter *range_start,
|
||
GtkTextIter *range_end,
|
||
GtkTextIter *whole_end)
|
||
{
|
||
Range *r;
|
||
|
||
r = g_slice_new (Range);
|
||
|
||
r->buffer = gtk_text_iter_get_buffer (range_start);
|
||
g_object_ref (r->buffer);
|
||
|
||
r->start_mark =
|
||
gtk_text_buffer_create_mark (gtk_text_iter_get_buffer (range_start),
|
||
NULL,
|
||
range_start,
|
||
FALSE);
|
||
r->end_mark =
|
||
gtk_text_buffer_create_mark (gtk_text_iter_get_buffer (range_start),
|
||
NULL,
|
||
range_end,
|
||
TRUE);
|
||
|
||
r->whole_end_mark =
|
||
gtk_text_buffer_create_mark (gtk_text_iter_get_buffer (range_start),
|
||
NULL,
|
||
whole_end,
|
||
TRUE);
|
||
|
||
r->range_start = range_start;
|
||
r->range_end = range_end;
|
||
r->whole_end = whole_end;
|
||
|
||
return r;
|
||
}
|
||
|
||
static void
|
||
restore_range (Range *r)
|
||
{
|
||
gtk_text_buffer_get_iter_at_mark (r->buffer,
|
||
r->range_start,
|
||
r->start_mark);
|
||
|
||
gtk_text_buffer_get_iter_at_mark (r->buffer,
|
||
r->range_end,
|
||
r->end_mark);
|
||
|
||
gtk_text_buffer_get_iter_at_mark (r->buffer,
|
||
r->whole_end,
|
||
r->whole_end_mark);
|
||
|
||
gtk_text_buffer_delete_mark (r->buffer, r->start_mark);
|
||
gtk_text_buffer_delete_mark (r->buffer, r->end_mark);
|
||
gtk_text_buffer_delete_mark (r->buffer, r->whole_end_mark);
|
||
|
||
/* Due to the gravities on the marks, the ordering could have
|
||
* gotten mangled; we switch to an empty range in that
|
||
* case
|
||
*/
|
||
|
||
if (gtk_text_iter_compare (r->range_start, r->range_end) > 0)
|
||
*r->range_start = *r->range_end;
|
||
|
||
if (gtk_text_iter_compare (r->range_end, r->whole_end) > 0)
|
||
*r->range_end = *r->whole_end;
|
||
|
||
g_object_unref (r->buffer);
|
||
g_slice_free (Range, r);
|
||
}
|
||
|
||
static void
|
||
insert_range_untagged (GtkTextBuffer *buffer,
|
||
GtkTextIter *iter,
|
||
const GtkTextIter *orig_start,
|
||
const GtkTextIter *orig_end,
|
||
gboolean interactive)
|
||
{
|
||
GtkTextIter range_start;
|
||
GtkTextIter range_end;
|
||
GtkTextIter start, end;
|
||
Range *r;
|
||
|
||
if (gtk_text_iter_equal (orig_start, orig_end))
|
||
return;
|
||
|
||
start = *orig_start;
|
||
end = *orig_end;
|
||
|
||
range_start = start;
|
||
range_end = start;
|
||
|
||
while (TRUE)
|
||
{
|
||
if (gtk_text_iter_equal (&range_start, &range_end))
|
||
{
|
||
/* Figure out how to move forward */
|
||
|
||
g_assert (gtk_text_iter_compare (&range_end, &end) <= 0);
|
||
|
||
if (gtk_text_iter_equal (&range_end, &end))
|
||
{
|
||
/* nothing left to do */
|
||
break;
|
||
}
|
||
else if (gtk_text_iter_get_char (&range_end) == GTK_TEXT_UNKNOWN_CHAR)
|
||
{
|
||
GdkPaintable *paintable;
|
||
GtkTextChildAnchor *anchor;
|
||
|
||
paintable = gtk_text_iter_get_paintable (&range_end);
|
||
anchor = gtk_text_iter_get_child_anchor (&range_end);
|
||
|
||
if (paintable)
|
||
{
|
||
r = save_range (&range_start,
|
||
&range_end,
|
||
&end);
|
||
|
||
gtk_text_buffer_insert_paintable (buffer, iter, paintable);
|
||
|
||
restore_range (r);
|
||
r = NULL;
|
||
|
||
gtk_text_iter_forward_char (&range_end);
|
||
|
||
range_start = range_end;
|
||
}
|
||
else if (anchor)
|
||
{
|
||
/* Just skip anchors */
|
||
|
||
gtk_text_iter_forward_char (&range_end);
|
||
range_start = range_end;
|
||
}
|
||
else
|
||
{
|
||
/* The GTK_TEXT_UNKNOWN_CHAR was in a text segment, so
|
||
* keep going.
|
||
*/
|
||
gtk_text_iter_forward_find_char (&range_end,
|
||
possibly_not_text, NULL,
|
||
&end);
|
||
|
||
g_assert (gtk_text_iter_compare (&range_end, &end) <= 0);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
/* Text segment starts here, so forward search to
|
||
* find its possible endpoint
|
||
*/
|
||
gtk_text_iter_forward_find_char (&range_end,
|
||
possibly_not_text, NULL,
|
||
&end);
|
||
|
||
g_assert (gtk_text_iter_compare (&range_end, &end) <= 0);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
r = save_range (&range_start,
|
||
&range_end,
|
||
&end);
|
||
|
||
insert_text_range (buffer,
|
||
iter,
|
||
&range_start,
|
||
&range_end,
|
||
interactive);
|
||
|
||
restore_range (r);
|
||
r = NULL;
|
||
|
||
range_start = range_end;
|
||
}
|
||
}
|
||
}
|
||
|
||
static void
|
||
insert_range_not_inside_self (GtkTextBuffer *buffer,
|
||
GtkTextIter *iter,
|
||
const GtkTextIter *orig_start,
|
||
const GtkTextIter *orig_end,
|
||
gboolean interactive)
|
||
{
|
||
/* Find each range of uniformly-tagged text, insert it,
|
||
* then apply the tags.
|
||
*/
|
||
GtkTextIter start = *orig_start;
|
||
GtkTextIter end = *orig_end;
|
||
GtkTextIter range_start;
|
||
GtkTextIter range_end;
|
||
gboolean insert_tags;
|
||
|
||
if (gtk_text_iter_equal (orig_start, orig_end))
|
||
return;
|
||
|
||
insert_tags = gtk_text_buffer_get_tag_table (gtk_text_iter_get_buffer (orig_start))
|
||
== gtk_text_buffer_get_tag_table (buffer);
|
||
|
||
gtk_text_iter_order (&start, &end);
|
||
|
||
range_start = start;
|
||
range_end = start;
|
||
|
||
while (TRUE)
|
||
{
|
||
int start_offset;
|
||
GtkTextIter start_iter;
|
||
GSList *tags;
|
||
GSList *tmp_list;
|
||
Range *r;
|
||
|
||
if (gtk_text_iter_equal (&range_start, &end))
|
||
break; /* All done */
|
||
|
||
g_assert (gtk_text_iter_compare (&range_start, &end) < 0);
|
||
|
||
gtk_text_iter_forward_to_tag_toggle (&range_end, NULL);
|
||
|
||
g_assert (!gtk_text_iter_equal (&range_start, &range_end));
|
||
|
||
/* Clamp to the end iterator */
|
||
if (gtk_text_iter_compare (&range_end, &end) > 0)
|
||
range_end = end;
|
||
|
||
/* We have a range with unique tags; insert it, and
|
||
* apply all tags.
|
||
*/
|
||
start_offset = gtk_text_iter_get_offset (iter);
|
||
|
||
r = save_range (&range_start, &range_end, &end);
|
||
|
||
insert_range_untagged (buffer, iter, &range_start, &range_end, interactive);
|
||
|
||
restore_range (r);
|
||
r = NULL;
|
||
|
||
if (insert_tags)
|
||
{
|
||
gtk_text_buffer_get_iter_at_offset (buffer, &start_iter, start_offset);
|
||
|
||
tags = gtk_text_iter_get_tags (&range_start);
|
||
tmp_list = tags;
|
||
while (tmp_list != NULL)
|
||
{
|
||
gtk_text_buffer_apply_tag (buffer, tmp_list->data, &start_iter, iter);
|
||
tmp_list = tmp_list->next;
|
||
}
|
||
g_slist_free (tags);
|
||
}
|
||
|
||
range_start = range_end;
|
||
}
|
||
}
|
||
|
||
static void
|
||
gtk_text_buffer_real_insert_range (GtkTextBuffer *buffer,
|
||
GtkTextIter *iter,
|
||
const GtkTextIter *orig_start,
|
||
const GtkTextIter *orig_end,
|
||
gboolean interactive)
|
||
{
|
||
GtkTextBuffer *src_buffer;
|
||
|
||
/* Find each range of uniformly-tagged text, insert it,
|
||
* then apply the tags.
|
||
*/
|
||
if (gtk_text_iter_equal (orig_start, orig_end))
|
||
return;
|
||
|
||
if (interactive)
|
||
gtk_text_buffer_begin_user_action (buffer);
|
||
|
||
src_buffer = gtk_text_iter_get_buffer (orig_start);
|
||
|
||
if (gtk_text_iter_get_buffer (iter) != src_buffer ||
|
||
!gtk_text_iter_in_range (iter, orig_start, orig_end))
|
||
{
|
||
insert_range_not_inside_self (buffer, iter, orig_start, orig_end, interactive);
|
||
}
|
||
else
|
||
{
|
||
/* If you insert a range into itself, it could loop infinitely
|
||
* because the region being copied keeps growing as we insert. So
|
||
* we have to separately copy the range before and after
|
||
* the insertion point.
|
||
*/
|
||
GtkTextIter start = *orig_start;
|
||
GtkTextIter end = *orig_end;
|
||
GtkTextIter range_start;
|
||
GtkTextIter range_end;
|
||
Range *first_half;
|
||
Range *second_half;
|
||
|
||
gtk_text_iter_order (&start, &end);
|
||
|
||
range_start = start;
|
||
range_end = *iter;
|
||
first_half = save_range (&range_start, &range_end, &end);
|
||
|
||
range_start = *iter;
|
||
range_end = end;
|
||
second_half = save_range (&range_start, &range_end, &end);
|
||
|
||
restore_range (first_half);
|
||
insert_range_not_inside_self (buffer, iter, &range_start, &range_end, interactive);
|
||
|
||
restore_range (second_half);
|
||
insert_range_not_inside_self (buffer, iter, &range_start, &range_end, interactive);
|
||
}
|
||
|
||
if (interactive)
|
||
gtk_text_buffer_end_user_action (buffer);
|
||
}
|
||
|
||
/**
|
||
* 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 paintables 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 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)->priv->tag_table ==
|
||
buffer->priv->tag_table);
|
||
g_return_if_fail (gtk_text_iter_get_buffer (iter) == buffer);
|
||
|
||
gtk_text_buffer_real_insert_range (buffer, iter, start, end, FALSE);
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_insert_range_interactive:
|
||
* @buffer: a #GtkTextBuffer
|
||
* @iter: a position in @buffer
|
||
* @start: a position in a #GtkTextBuffer
|
||
* @end: another position in the same buffer as @start
|
||
* @default_editable: default editability of the buffer
|
||
*
|
||
* Same as gtk_text_buffer_insert_range(), but does nothing if the
|
||
* insertion point isn’t editable. The @default_editable parameter
|
||
* indicates whether the text is editable at @iter if no tags
|
||
* enclosing @iter affect editability. Typically the result of
|
||
* gtk_text_view_get_editable() is appropriate here.
|
||
*
|
||
* Returns: whether an insertion was possible at @iter
|
||
**/
|
||
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)->priv->tag_table ==
|
||
buffer->priv->tag_table, FALSE);
|
||
|
||
if (gtk_text_iter_can_insert (iter, default_editable))
|
||
{
|
||
gtk_text_buffer_real_insert_range (buffer, iter, start, end, TRUE);
|
||
return TRUE;
|
||
}
|
||
else
|
||
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
|
||
* @...: %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 char *text,
|
||
int len,
|
||
GtkTextTag *first_tag,
|
||
...)
|
||
{
|
||
int 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);
|
||
g_return_if_fail (gtk_text_iter_get_buffer (iter) == buffer);
|
||
|
||
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
|
||
* @...: 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 char *text,
|
||
int len,
|
||
const char *first_tag_name,
|
||
...)
|
||
{
|
||
int start_offset;
|
||
GtkTextIter start;
|
||
va_list args;
|
||
const char *tag_name;
|
||
|
||
g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
|
||
g_return_if_fail (iter != NULL);
|
||
g_return_if_fail (text != NULL);
|
||
g_return_if_fail (gtk_text_iter_get_buffer (iter) == buffer);
|
||
|
||
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->priv->tag_table,
|
||
tag_name);
|
||
|
||
if (tag == NULL)
|
||
{
|
||
g_warning ("%s: no tag with name '%s'!", G_STRLOC, tag_name);
|
||
va_end (args);
|
||
return;
|
||
}
|
||
|
||
gtk_text_buffer_apply_tag (buffer, tag, &start, iter);
|
||
|
||
tag_name = va_arg (args, const char *);
|
||
}
|
||
|
||
va_end (args);
|
||
}
|
||
|
||
|
||
/*
|
||
* Deletion
|
||
*/
|
||
|
||
static void
|
||
gtk_text_buffer_real_delete_range (GtkTextBuffer *buffer,
|
||
GtkTextIter *start,
|
||
GtkTextIter *end)
|
||
{
|
||
gboolean has_selection;
|
||
|
||
g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
|
||
g_return_if_fail (start != NULL);
|
||
g_return_if_fail (end != NULL);
|
||
|
||
if (gtk_text_history_get_enabled (buffer->priv->history))
|
||
{
|
||
GtkTextIter sel_begin, sel_end;
|
||
char *text;
|
||
|
||
if (gtk_text_buffer_get_selection_bounds (buffer, &sel_begin, &sel_end))
|
||
gtk_text_history_selection_changed (buffer->priv->history,
|
||
gtk_text_iter_get_offset (&sel_begin),
|
||
gtk_text_iter_get_offset (&sel_end));
|
||
else
|
||
gtk_text_history_selection_changed (buffer->priv->history,
|
||
gtk_text_iter_get_offset (&sel_begin),
|
||
-1);
|
||
|
||
text = gtk_text_iter_get_slice (start, end);
|
||
gtk_text_history_text_deleted (buffer->priv->history,
|
||
gtk_text_iter_get_offset (start),
|
||
gtk_text_iter_get_offset (end),
|
||
text, -1);
|
||
g_free (text);
|
||
}
|
||
|
||
_gtk_text_btree_delete (start, end);
|
||
|
||
/* may have deleted the selection... */
|
||
update_selection_clipboards (buffer);
|
||
|
||
has_selection = gtk_text_buffer_get_selection_bounds (buffer, NULL, NULL);
|
||
if (has_selection != buffer->priv->has_selection)
|
||
{
|
||
buffer->priv->has_selection = has_selection;
|
||
g_object_notify_by_pspec (G_OBJECT (buffer), text_buffer_props[PROP_HAS_SELECTION]);
|
||
}
|
||
|
||
g_signal_emit (buffer, signals[CHANGED], 0);
|
||
g_object_notify_by_pspec (G_OBJECT (buffer), text_buffer_props[PROP_CURSOR_POSITION]);
|
||
}
|
||
|
||
static void
|
||
gtk_text_buffer_emit_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);
|
||
|
||
if (gtk_text_iter_equal (start, end))
|
||
return;
|
||
|
||
gtk_text_iter_order (start, end);
|
||
|
||
g_signal_emit (buffer,
|
||
signals[DELETE_RANGE],
|
||
0,
|
||
start, end);
|
||
}
|
||
|
||
/**
|
||
* 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-range” 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.
|
||
**/
|
||
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);
|
||
g_return_if_fail (gtk_text_iter_get_buffer (start) == buffer);
|
||
g_return_if_fail (gtk_text_iter_get_buffer (end) == buffer);
|
||
|
||
gtk_text_buffer_emit_delete (buffer, start, end);
|
||
}
|
||
|
||
/**
|
||
* 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.
|
||
*
|
||
* Returns: 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);
|
||
g_return_val_if_fail (gtk_text_iter_get_buffer (start_iter) == buffer, FALSE);
|
||
g_return_val_if_fail (gtk_text_iter_get_buffer (end_iter) == buffer, FALSE);
|
||
|
||
|
||
gtk_text_buffer_begin_user_action (buffer);
|
||
|
||
gtk_text_iter_order (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);
|
||
|
||
gtk_text_buffer_get_iter_at_mark (buffer, &iter, start_mark);
|
||
|
||
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);
|
||
|
||
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);
|
||
|
||
/* It's more robust to ask for the state again then to assume that
|
||
* we're on the next not-editable segment. We don't know what the
|
||
* ::delete-range handler did.... maybe it deleted the following
|
||
* not-editable segment because it was associated with the editable
|
||
* segment.
|
||
*/
|
||
current_state = gtk_text_iter_editable (&iter, default_editable);
|
||
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);
|
||
|
||
gtk_text_buffer_end_user_action (buffer);
|
||
|
||
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().
|
||
*
|
||
* Returns: (transfer full): an allocated UTF-8 string
|
||
**/
|
||
char *
|
||
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);
|
||
g_return_val_if_fail (gtk_text_iter_get_buffer (start) == buffer, NULL);
|
||
g_return_val_if_fail (gtk_text_iter_get_buffer (end) == buffer, 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
|
||
* 0xFFFC 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(). Note that 0xFFFC can occur in normal
|
||
* text as well, so it is not a reliable indicator that a paintable or
|
||
* widget is in the buffer.
|
||
*
|
||
* Returns: (transfer full): an allocated UTF-8 string
|
||
**/
|
||
char *
|
||
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);
|
||
g_return_val_if_fail (gtk_text_iter_get_buffer (start) == buffer, NULL);
|
||
g_return_val_if_fail (gtk_text_iter_get_buffer (end) == buffer, NULL);
|
||
|
||
if (include_hidden_chars)
|
||
return gtk_text_iter_get_slice (start, end);
|
||
else
|
||
return gtk_text_iter_get_visible_slice (start, end);
|
||
}
|
||
|
||
/*
|
||
* Pixbufs
|
||
*/
|
||
|
||
static void
|
||
gtk_text_buffer_real_insert_paintable (GtkTextBuffer *buffer,
|
||
GtkTextIter *iter,
|
||
GdkPaintable *paintable)
|
||
{
|
||
_gtk_text_btree_insert_paintable (iter, paintable);
|
||
|
||
g_signal_emit (buffer, signals[CHANGED], 0);
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_insert_paintable:
|
||
* @buffer: a #GtkTextBuffer
|
||
* @iter: location to insert the paintable
|
||
* @paintable: a #GdkPaintable
|
||
*
|
||
* Inserts an image into the text buffer at @iter. The image will be
|
||
* counted as one character in character counts, and when obtaining
|
||
* the buffer contents as a string, will be represented by the Unicode
|
||
* “object replacement character” 0xFFFC. Note that the “slice”
|
||
* variants for obtaining portions of the buffer as a string include
|
||
* this character for paintable, but the “text” variants do
|
||
* not. e.g. see gtk_text_buffer_get_slice() and
|
||
* gtk_text_buffer_get_text().
|
||
**/
|
||
void
|
||
gtk_text_buffer_insert_paintable (GtkTextBuffer *buffer,
|
||
GtkTextIter *iter,
|
||
GdkPaintable *paintable)
|
||
{
|
||
g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
|
||
g_return_if_fail (iter != NULL);
|
||
g_return_if_fail (GDK_IS_PAINTABLE (paintable));
|
||
g_return_if_fail (gtk_text_iter_get_buffer (iter) == buffer);
|
||
|
||
g_signal_emit (buffer, signals[INSERT_PAINTABLE], 0, iter, paintable);
|
||
}
|
||
|
||
/*
|
||
* Child anchor
|
||
*/
|
||
|
||
|
||
static void
|
||
gtk_text_buffer_real_insert_anchor (GtkTextBuffer *buffer,
|
||
GtkTextIter *iter,
|
||
GtkTextChildAnchor *anchor)
|
||
{
|
||
_gtk_text_btree_insert_child_anchor (iter, anchor);
|
||
|
||
g_signal_emit (buffer, signals[CHANGED], 0);
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_insert_child_anchor:
|
||
* @buffer: a #GtkTextBuffer
|
||
* @iter: location to insert the anchor
|
||
* @anchor: a #GtkTextChildAnchor
|
||
*
|
||
* Inserts a child widget anchor into the text buffer at @iter. The
|
||
* anchor will be counted as one character in character counts, and
|
||
* when obtaining the buffer contents as a string, will be represented
|
||
* by the Unicode “object replacement character” 0xFFFC. Note that the
|
||
* “slice” variants for obtaining portions of the buffer as a string
|
||
* include this character for child anchors, but the “text” variants do
|
||
* not. E.g. see gtk_text_buffer_get_slice() and
|
||
* gtk_text_buffer_get_text(). Consider
|
||
* gtk_text_buffer_create_child_anchor() as a more convenient
|
||
* alternative to this function. The buffer will add a reference to
|
||
* the anchor, so you can unref it after insertion.
|
||
**/
|
||
void
|
||
gtk_text_buffer_insert_child_anchor (GtkTextBuffer *buffer,
|
||
GtkTextIter *iter,
|
||
GtkTextChildAnchor *anchor)
|
||
{
|
||
g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
|
||
g_return_if_fail (iter != NULL);
|
||
g_return_if_fail (GTK_IS_TEXT_CHILD_ANCHOR (anchor));
|
||
g_return_if_fail (gtk_text_iter_get_buffer (iter) == buffer);
|
||
|
||
g_signal_emit (buffer, signals[INSERT_CHILD_ANCHOR], 0,
|
||
iter, anchor);
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_create_child_anchor:
|
||
* @buffer: a #GtkTextBuffer
|
||
* @iter: location in the buffer
|
||
*
|
||
* This is a convenience function which simply creates a child anchor
|
||
* with gtk_text_child_anchor_new() and inserts it into the buffer
|
||
* with gtk_text_buffer_insert_child_anchor(). The new anchor is
|
||
* owned by the buffer; no reference count is returned to
|
||
* the caller of gtk_text_buffer_create_child_anchor().
|
||
*
|
||
* Returns: (transfer none): the created child anchor
|
||
**/
|
||
GtkTextChildAnchor*
|
||
gtk_text_buffer_create_child_anchor (GtkTextBuffer *buffer,
|
||
GtkTextIter *iter)
|
||
{
|
||
GtkTextChildAnchor *anchor;
|
||
|
||
g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), NULL);
|
||
g_return_val_if_fail (iter != NULL, NULL);
|
||
g_return_val_if_fail (gtk_text_iter_get_buffer (iter) == buffer, NULL);
|
||
|
||
anchor = gtk_text_child_anchor_new ();
|
||
|
||
gtk_text_buffer_insert_child_anchor (buffer, iter, anchor);
|
||
|
||
g_object_unref (anchor);
|
||
|
||
return anchor;
|
||
}
|
||
|
||
/*
|
||
* 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_range,
|
||
* 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 (mark);
|
||
|
||
g_signal_emit (buffer,
|
||
signals[MARK_SET],
|
||
0,
|
||
location,
|
||
mark);
|
||
|
||
g_object_unref (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.
|
||
*
|
||
* Returns: mark
|
||
**/
|
||
static GtkTextMark*
|
||
gtk_text_buffer_set_mark (GtkTextBuffer *buffer,
|
||
GtkTextMark *existing_mark,
|
||
const char *mark_name,
|
||
const GtkTextIter *iter,
|
||
gboolean left_gravity,
|
||
gboolean should_exist)
|
||
{
|
||
GtkTextIter location;
|
||
GtkTextMark *mark;
|
||
|
||
g_return_val_if_fail (gtk_text_iter_get_buffer (iter) == buffer, NULL);
|
||
|
||
mark = _gtk_text_btree_set_mark (get_btree (buffer),
|
||
existing_mark,
|
||
mark_name,
|
||
left_gravity,
|
||
iter,
|
||
should_exist);
|
||
|
||
_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: (allow-none): 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 #GtkTextBuffer::mark-set signal as notification of the mark's
|
||
* initial placement.
|
||
*
|
||
* Returns: (transfer none): the new #GtkTextMark object
|
||
**/
|
||
GtkTextMark*
|
||
gtk_text_buffer_create_mark (GtkTextBuffer *buffer,
|
||
const char *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_add_mark:
|
||
* @buffer: a #GtkTextBuffer
|
||
* @mark: the mark to add
|
||
* @where: location to place mark
|
||
*
|
||
* Adds the mark at position @where. The mark must not be added to
|
||
* another buffer, and if its name is not %NULL then there must not
|
||
* be another mark in the buffer with the same name.
|
||
*
|
||
* Emits the #GtkTextBuffer::mark-set signal as notification of the mark's
|
||
* initial placement.
|
||
**/
|
||
void
|
||
gtk_text_buffer_add_mark (GtkTextBuffer *buffer,
|
||
GtkTextMark *mark,
|
||
const GtkTextIter *where)
|
||
{
|
||
const char *name;
|
||
|
||
g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
|
||
g_return_if_fail (GTK_IS_TEXT_MARK (mark));
|
||
g_return_if_fail (where != NULL);
|
||
g_return_if_fail (gtk_text_mark_get_buffer (mark) == NULL);
|
||
|
||
name = gtk_text_mark_get_name (mark);
|
||
|
||
if (name != NULL && gtk_text_buffer_get_mark (buffer, name) != NULL)
|
||
{
|
||
g_critical ("Mark %s already exists in the buffer", name);
|
||
return;
|
||
}
|
||
|
||
gtk_text_buffer_set_mark (buffer, mark, NULL, where, FALSE, 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 #GtkTextBuffer::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: (out): 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, until it gets added to a buffer again with
|
||
* gtk_text_buffer_add_mark(). Use gtk_text_mark_get_deleted() to
|
||
* find out if a mark has been removed from its buffer.
|
||
* The #GtkTextBuffer::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 (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.
|
||
*/
|
||
g_signal_emit (buffer, signals[MARK_DELETED],
|
||
0,
|
||
mark);
|
||
|
||
g_object_unref (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.
|
||
*
|
||
* Returns: (nullable) (transfer none): a #GtkTextMark, or %NULL
|
||
**/
|
||
GtkTextMark*
|
||
gtk_text_buffer_get_mark (GtkTextBuffer *buffer,
|
||
const char *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 char *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 char *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
|
||
* named “insert”, but very slightly more efficient, and involves less
|
||
* typing.
|
||
*
|
||
* Returns: (transfer none): insertion point mark
|
||
**/
|
||
GtkTextMark*
|
||
gtk_text_buffer_get_insert (GtkTextBuffer *buffer)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), NULL);
|
||
|
||
return _gtk_text_btree_get_insert (get_btree (buffer));
|
||
}
|
||
|
||
/**
|
||
* 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 named
|
||
* “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.
|
||
*
|
||
* Returns: (transfer none): selection bound mark
|
||
**/
|
||
GtkTextMark*
|
||
gtk_text_buffer_get_selection_bound (GtkTextBuffer *buffer)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), NULL);
|
||
|
||
return _gtk_text_btree_get_selection_bound (get_btree (buffer));
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_get_iter_at_child_anchor:
|
||
* @buffer: a #GtkTextBuffer
|
||
* @iter: (out): an iterator to be initialized
|
||
* @anchor: a child anchor that appears in @buffer
|
||
*
|
||
* Obtains the location of @anchor within @buffer.
|
||
**/
|
||
void
|
||
gtk_text_buffer_get_iter_at_child_anchor (GtkTextBuffer *buffer,
|
||
GtkTextIter *iter,
|
||
GtkTextChildAnchor *anchor)
|
||
{
|
||
g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
|
||
g_return_if_fail (iter != NULL);
|
||
g_return_if_fail (GTK_IS_TEXT_CHILD_ANCHOR (anchor));
|
||
g_return_if_fail (!gtk_text_child_anchor_get_deleted (anchor));
|
||
|
||
_gtk_text_btree_get_iter_at_child_anchor (get_btree (buffer),
|
||
iter,
|
||
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)
|
||
{
|
||
gtk_text_buffer_select_range (buffer, where, where);
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_select_range:
|
||
* @buffer: a #GtkTextBuffer
|
||
* @ins: where to put the “insert” mark
|
||
* @bound: where to put the “selection_bound” mark
|
||
*
|
||
* This function moves the “insert” and “selection_bound” marks
|
||
* simultaneously. If you move them 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_select_range (GtkTextBuffer *buffer,
|
||
const GtkTextIter *ins,
|
||
const GtkTextIter *bound)
|
||
{
|
||
GtkTextIter real_ins;
|
||
GtkTextIter real_bound;
|
||
|
||
g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
|
||
|
||
real_ins = *ins;
|
||
real_bound = *bound;
|
||
|
||
_gtk_text_btree_select_range (get_btree (buffer), &real_ins, &real_bound);
|
||
gtk_text_buffer_mark_set (buffer, &real_ins,
|
||
gtk_text_buffer_get_insert (buffer));
|
||
gtk_text_buffer_mark_set (buffer, &real_bound,
|
||
gtk_text_buffer_get_selection_bound (buffer));
|
||
}
|
||
|
||
/*
|
||
* Tags
|
||
*/
|
||
|
||
/**
|
||
* gtk_text_buffer_create_tag:
|
||
* @buffer: a #GtkTextBuffer
|
||
* @tag_name: (allow-none): name of the new tag, or %NULL
|
||
* @first_property_name: (allow-none): name of first property to set, or %NULL
|
||
* @...: %NULL-terminated list of property names and values
|
||
*
|
||
* 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 is owned by
|
||
* the buffer’s tag table, so the ref count will be equal to one.
|
||
*
|
||
* If @tag_name is %NULL, the tag is anonymous.
|
||
*
|
||
* If @tag_name is non-%NULL, a tag called @tag_name must not already
|
||
* exist in the tag table for this buffer.
|
||
*
|
||
* The @first_property_name argument and subsequent arguments are a list
|
||
* of properties to set on the tag, as with g_object_set().
|
||
*
|
||
* Returns: (transfer none): a new tag
|
||
*/
|
||
GtkTextTag*
|
||
gtk_text_buffer_create_tag (GtkTextBuffer *buffer,
|
||
const char *tag_name,
|
||
const char *first_property_name,
|
||
...)
|
||
{
|
||
GtkTextTag *tag;
|
||
va_list list;
|
||
|
||
g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), NULL);
|
||
|
||
tag = gtk_text_tag_new (tag_name);
|
||
|
||
if (!gtk_text_tag_table_add (get_table (buffer), tag))
|
||
{
|
||
g_object_unref (tag);
|
||
return NULL;
|
||
}
|
||
|
||
if (first_property_name)
|
||
{
|
||
va_start (list, first_property_name);
|
||
g_object_set_valist (G_OBJECT (tag), first_property_name, list);
|
||
va_end (list);
|
||
}
|
||
|
||
g_object_unref (tag);
|
||
|
||
return tag;
|
||
}
|
||
|
||
static void
|
||
gtk_text_buffer_real_apply_tag (GtkTextBuffer *buffer,
|
||
GtkTextTag *tag,
|
||
const GtkTextIter *start,
|
||
const GtkTextIter *end)
|
||
{
|
||
if (tag->priv->table != buffer->priv->tag_table)
|
||
{
|
||
g_warning ("Can only apply tags that are in the tag table for the buffer");
|
||
return;
|
||
}
|
||
|
||
_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)
|
||
{
|
||
if (tag->priv->table != buffer->priv->tag_table)
|
||
{
|
||
g_warning ("Can only remove tags that are in the tag table for the buffer");
|
||
return;
|
||
}
|
||
|
||
_gtk_text_btree_tag (start, end, tag, FALSE);
|
||
}
|
||
|
||
static void
|
||
gtk_text_buffer_real_changed (GtkTextBuffer *buffer)
|
||
{
|
||
gtk_text_buffer_set_modified (buffer, TRUE);
|
||
|
||
g_object_notify_by_pspec (G_OBJECT (buffer), text_buffer_props[PROP_TEXT]);
|
||
}
|
||
|
||
static void
|
||
gtk_text_buffer_real_mark_set (GtkTextBuffer *buffer,
|
||
const GtkTextIter *iter,
|
||
GtkTextMark *mark)
|
||
{
|
||
GtkTextMark *insert;
|
||
|
||
insert = gtk_text_buffer_get_insert (buffer);
|
||
|
||
if (mark == insert || mark == gtk_text_buffer_get_selection_bound (buffer))
|
||
{
|
||
gboolean has_selection;
|
||
|
||
update_selection_clipboards (buffer);
|
||
|
||
has_selection = gtk_text_buffer_get_selection_bounds (buffer,
|
||
NULL,
|
||
NULL);
|
||
|
||
if (has_selection != buffer->priv->has_selection)
|
||
{
|
||
buffer->priv->has_selection = has_selection;
|
||
g_object_notify_by_pspec (G_OBJECT (buffer), text_buffer_props[PROP_HAS_SELECTION]);
|
||
}
|
||
}
|
||
|
||
if (mark == insert)
|
||
g_object_notify_by_pspec (G_OBJECT (buffer), text_buffer_props[PROP_CURSOR_POSITION]);
|
||
}
|
||
|
||
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_order (&start_tmp, &end_tmp);
|
||
|
||
if (apply)
|
||
g_signal_emit (buffer, signals[APPLY_TAG],
|
||
0,
|
||
tag, &start_tmp, &end_tmp);
|
||
else
|
||
g_signal_emit (buffer, signals[REMOVE_TAG],
|
||
0,
|
||
tag, &start_tmp, &end_tmp);
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_apply_tag:
|
||
* @buffer: a #GtkTextBuffer
|
||
* @tag: a #GtkTextTag
|
||
* @start: one bound of range to be tagged
|
||
* @end: other bound of range to be tagged
|
||
*
|
||
* Emits the “apply-tag” signal on @buffer. The default
|
||
* handler for the signal applies @tag to the given range.
|
||
* @start and @end do not have to be in order.
|
||
**/
|
||
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);
|
||
g_return_if_fail (gtk_text_iter_get_buffer (start) == buffer);
|
||
g_return_if_fail (gtk_text_iter_get_buffer (end) == buffer);
|
||
g_return_if_fail (tag->priv->table == buffer->priv->tag_table);
|
||
|
||
gtk_text_buffer_emit_tag (buffer, tag, TRUE, start, end);
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_remove_tag:
|
||
* @buffer: a #GtkTextBuffer
|
||
* @tag: a #GtkTextTag
|
||
* @start: one bound of range to be untagged
|
||
* @end: other bound of range to be untagged
|
||
*
|
||
* Emits the “remove-tag” signal. The default handler for the signal
|
||
* removes all occurrences of @tag from the given range. @start and
|
||
* @end don’t have to be in order.
|
||
**/
|
||
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);
|
||
g_return_if_fail (gtk_text_iter_get_buffer (start) == buffer);
|
||
g_return_if_fail (gtk_text_iter_get_buffer (end) == buffer);
|
||
g_return_if_fail (tag->priv->table == buffer->priv->tag_table);
|
||
|
||
gtk_text_buffer_emit_tag (buffer, tag, FALSE, start, end);
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_apply_tag_by_name:
|
||
* @buffer: a #GtkTextBuffer
|
||
* @name: name of a named #GtkTextTag
|
||
* @start: one bound of range to be tagged
|
||
* @end: other bound of range to be tagged
|
||
*
|
||
* Calls gtk_text_tag_table_lookup() on the buffer’s tag table to
|
||
* get a #GtkTextTag, then calls gtk_text_buffer_apply_tag().
|
||
**/
|
||
void
|
||
gtk_text_buffer_apply_tag_by_name (GtkTextBuffer *buffer,
|
||
const char *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);
|
||
g_return_if_fail (gtk_text_iter_get_buffer (start) == buffer);
|
||
g_return_if_fail (gtk_text_iter_get_buffer (end) == buffer);
|
||
|
||
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);
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_remove_tag_by_name:
|
||
* @buffer: a #GtkTextBuffer
|
||
* @name: name of a #GtkTextTag
|
||
* @start: one bound of range to be untagged
|
||
* @end: other bound of range to be untagged
|
||
*
|
||
* Calls gtk_text_tag_table_lookup() on the buffer’s tag table to
|
||
* get a #GtkTextTag, then calls gtk_text_buffer_remove_tag().
|
||
**/
|
||
void
|
||
gtk_text_buffer_remove_tag_by_name (GtkTextBuffer *buffer,
|
||
const char *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);
|
||
g_return_if_fail (gtk_text_iter_get_buffer (start) == buffer);
|
||
g_return_if_fail (gtk_text_iter_get_buffer (end) == buffer);
|
||
|
||
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);
|
||
}
|
||
|
||
static int
|
||
pointer_cmp (gconstpointer a,
|
||
gconstpointer b)
|
||
{
|
||
if (a < b)
|
||
return -1;
|
||
else if (a > b)
|
||
return 1;
|
||
else
|
||
return 0;
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_remove_all_tags:
|
||
* @buffer: a #GtkTextBuffer
|
||
* @start: one bound of range to be untagged
|
||
* @end: other bound of range to be untagged
|
||
*
|
||
* Removes all tags in the range between @start and @end. Be careful
|
||
* with this function; it could remove tags added in code unrelated to
|
||
* the code you’re currently writing. That is, using this function is
|
||
* probably a bad idea if you have two or more unrelated code sections
|
||
* that add tags.
|
||
**/
|
||
void
|
||
gtk_text_buffer_remove_all_tags (GtkTextBuffer *buffer,
|
||
const GtkTextIter *start,
|
||
const GtkTextIter *end)
|
||
{
|
||
GtkTextIter first, second, tmp;
|
||
GSList *tags;
|
||
GSList *tmp_list;
|
||
GSList *prev, *next;
|
||
GtkTextTag *tag;
|
||
|
||
g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
|
||
g_return_if_fail (start != NULL);
|
||
g_return_if_fail (end != NULL);
|
||
g_return_if_fail (gtk_text_iter_get_buffer (start) == buffer);
|
||
g_return_if_fail (gtk_text_iter_get_buffer (end) == buffer);
|
||
|
||
first = *start;
|
||
second = *end;
|
||
|
||
gtk_text_iter_order (&first, &second);
|
||
|
||
/* Get all tags turned on at the start */
|
||
tags = gtk_text_iter_get_tags (&first);
|
||
|
||
/* Find any that are toggled on within the range */
|
||
tmp = first;
|
||
while (gtk_text_iter_forward_to_tag_toggle (&tmp, NULL))
|
||
{
|
||
GSList *toggled;
|
||
GSList *tmp_list2;
|
||
|
||
if (gtk_text_iter_compare (&tmp, &second) >= 0)
|
||
break; /* past the end of the range */
|
||
|
||
toggled = gtk_text_iter_get_toggled_tags (&tmp, TRUE);
|
||
|
||
/* We could end up with a really big-ass list here.
|
||
* Fix it someday.
|
||
*/
|
||
tmp_list2 = toggled;
|
||
while (tmp_list2 != NULL)
|
||
{
|
||
tags = g_slist_prepend (tags, tmp_list2->data);
|
||
|
||
tmp_list2 = tmp_list2->next;
|
||
}
|
||
|
||
g_slist_free (toggled);
|
||
}
|
||
|
||
/* Sort the list */
|
||
tags = g_slist_sort (tags, pointer_cmp);
|
||
|
||
/* Strip duplicates */
|
||
tag = NULL;
|
||
prev = NULL;
|
||
tmp_list = tags;
|
||
while (tmp_list != NULL)
|
||
{
|
||
if (tag == tmp_list->data)
|
||
{
|
||
/* duplicate */
|
||
next = tmp_list->next;
|
||
if (prev)
|
||
prev->next = next;
|
||
|
||
tmp_list->next = NULL;
|
||
|
||
g_slist_free (tmp_list);
|
||
|
||
tmp_list = next;
|
||
/* prev is unchanged */
|
||
}
|
||
else
|
||
{
|
||
/* not a duplicate */
|
||
tag = GTK_TEXT_TAG (tmp_list->data);
|
||
prev = tmp_list;
|
||
tmp_list = tmp_list->next;
|
||
}
|
||
}
|
||
|
||
g_slist_foreach (tags, (GFunc) g_object_ref, NULL);
|
||
|
||
tmp_list = tags;
|
||
while (tmp_list != NULL)
|
||
{
|
||
tag = GTK_TEXT_TAG (tmp_list->data);
|
||
|
||
gtk_text_buffer_remove_tag (buffer, tag, &first, &second);
|
||
|
||
tmp_list = tmp_list->next;
|
||
}
|
||
|
||
g_slist_free_full (tags, g_object_unref);
|
||
}
|
||
|
||
|
||
/*
|
||
* Obtain various iterators
|
||
*/
|
||
|
||
/**
|
||
* gtk_text_buffer_get_iter_at_line_offset:
|
||
* @buffer: a #GtkTextBuffer
|
||
* @iter: (out): iterator to initialize
|
||
* @line_number: line number counting from 0
|
||
* @char_offset: char offset from start of line
|
||
*
|
||
* Obtains an iterator pointing to @char_offset within the given line. Note
|
||
* characters, not bytes; UTF-8 may encode one character as multiple bytes.
|
||
*
|
||
* Before the 3.20 version, it was not allowed to pass an invalid location.
|
||
*
|
||
* If @line_number is greater than the number of lines
|
||
* in the @buffer, the end iterator is returned. And if @char_offset is off the
|
||
* end of the line, the iterator at the end of the line is returned.
|
||
**/
|
||
void
|
||
gtk_text_buffer_get_iter_at_line_offset (GtkTextBuffer *buffer,
|
||
GtkTextIter *iter,
|
||
int line_number,
|
||
int char_offset)
|
||
{
|
||
GtkTextIter end_line_iter;
|
||
|
||
g_return_if_fail (iter != NULL);
|
||
g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
|
||
|
||
if (line_number >= gtk_text_buffer_get_line_count (buffer))
|
||
{
|
||
gtk_text_buffer_get_end_iter (buffer, iter);
|
||
return;
|
||
}
|
||
|
||
_gtk_text_btree_get_iter_at_line_char (get_btree (buffer), iter, line_number, 0);
|
||
|
||
end_line_iter = *iter;
|
||
if (!gtk_text_iter_ends_line (&end_line_iter))
|
||
gtk_text_iter_forward_to_line_end (&end_line_iter);
|
||
|
||
if (char_offset <= gtk_text_iter_get_line_offset (&end_line_iter))
|
||
gtk_text_iter_set_line_offset (iter, char_offset);
|
||
else
|
||
*iter = end_line_iter;
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_get_iter_at_line_index:
|
||
* @buffer: a #GtkTextBuffer
|
||
* @iter: (out): iterator to initialize
|
||
* @line_number: line number counting from 0
|
||
* @byte_index: byte index from start of line
|
||
*
|
||
* Obtains an iterator pointing to @byte_index within the given line.
|
||
* @byte_index must be the start of a UTF-8 character. Note bytes, not
|
||
* characters; UTF-8 may encode one character as multiple bytes.
|
||
*
|
||
* If @line_number is greater than the number of lines
|
||
* in the @buffer, the end iterator is returned. And if @byte_index is off the
|
||
* end of the line, the iterator at the end of the line is returned.
|
||
**/
|
||
void
|
||
gtk_text_buffer_get_iter_at_line_index (GtkTextBuffer *buffer,
|
||
GtkTextIter *iter,
|
||
int line_number,
|
||
int byte_index)
|
||
{
|
||
GtkTextIter end_line_iter;
|
||
|
||
g_return_if_fail (iter != NULL);
|
||
g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
|
||
|
||
if (line_number >= gtk_text_buffer_get_line_count (buffer))
|
||
{
|
||
gtk_text_buffer_get_end_iter (buffer, iter);
|
||
return;
|
||
}
|
||
|
||
gtk_text_buffer_get_iter_at_line (buffer, iter, line_number);
|
||
|
||
end_line_iter = *iter;
|
||
if (!gtk_text_iter_ends_line (&end_line_iter))
|
||
gtk_text_iter_forward_to_line_end (&end_line_iter);
|
||
|
||
if (byte_index <= gtk_text_iter_get_line_index (&end_line_iter))
|
||
gtk_text_iter_set_line_index (iter, byte_index);
|
||
else
|
||
*iter = end_line_iter;
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_get_iter_at_line:
|
||
* @buffer: a #GtkTextBuffer
|
||
* @iter: (out): iterator to initialize
|
||
* @line_number: line number counting from 0
|
||
*
|
||
* Initializes @iter to the start of the given line. If @line_number is greater
|
||
* than the number of lines in the @buffer, the end iterator is returned.
|
||
**/
|
||
void
|
||
gtk_text_buffer_get_iter_at_line (GtkTextBuffer *buffer,
|
||
GtkTextIter *iter,
|
||
int 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);
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_get_iter_at_offset:
|
||
* @buffer: a #GtkTextBuffer
|
||
* @iter: (out): iterator to initialize
|
||
* @char_offset: char offset from start of buffer, counting from 0, or -1
|
||
*
|
||
* Initializes @iter to a position @char_offset chars from the start
|
||
* of the entire buffer. If @char_offset is -1 or greater than the number
|
||
* of characters in the buffer, @iter is initialized to the end iterator,
|
||
* the iterator one past the last valid character in the buffer.
|
||
**/
|
||
void
|
||
gtk_text_buffer_get_iter_at_offset (GtkTextBuffer *buffer,
|
||
GtkTextIter *iter,
|
||
int 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);
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_get_start_iter:
|
||
* @buffer: a #GtkTextBuffer
|
||
* @iter: (out): iterator to initialize
|
||
*
|
||
* Initialized @iter with the first position in the text buffer. This
|
||
* is the same as using gtk_text_buffer_get_iter_at_offset() to get
|
||
* the iter at character offset 0.
|
||
**/
|
||
void
|
||
gtk_text_buffer_get_start_iter (GtkTextBuffer *buffer,
|
||
GtkTextIter *iter)
|
||
{
|
||
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, 0);
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_get_end_iter:
|
||
* @buffer: a #GtkTextBuffer
|
||
* @iter: (out): iterator to initialize
|
||
*
|
||
* Initializes @iter with the “end iterator,” one past the last valid
|
||
* character in the text buffer. If dereferenced with
|
||
* gtk_text_iter_get_char(), the end iterator has a character value of 0.
|
||
* The entire buffer lies in the range from the first position in
|
||
* the buffer (call gtk_text_buffer_get_start_iter() to get
|
||
* character position 0) to the end iterator.
|
||
**/
|
||
void
|
||
gtk_text_buffer_get_end_iter (GtkTextBuffer *buffer,
|
||
GtkTextIter *iter)
|
||
{
|
||
g_return_if_fail (iter != NULL);
|
||
g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
|
||
|
||
_gtk_text_btree_get_end_iter (get_btree (buffer), iter);
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_get_bounds:
|
||
* @buffer: a #GtkTextBuffer
|
||
* @start: (out): iterator to initialize with first position in the buffer
|
||
* @end: (out): iterator to initialize with the end iterator
|
||
*
|
||
* Retrieves the first and last iterators in the buffer, i.e. the
|
||
* entire buffer lies within the range [@start,@end).
|
||
**/
|
||
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_end_iter (get_btree (buffer), end);
|
||
}
|
||
|
||
/*
|
||
* Modified flag
|
||
*/
|
||
|
||
/**
|
||
* gtk_text_buffer_get_modified:
|
||
* @buffer: a #GtkTextBuffer
|
||
*
|
||
* Indicates whether the buffer has been modified since the last call
|
||
* to gtk_text_buffer_set_modified() set the modification flag to
|
||
* %FALSE. Used for example to enable a “save” function in a text
|
||
* editor.
|
||
*
|
||
* Returns: %TRUE if the buffer has been modified
|
||
**/
|
||
gboolean
|
||
gtk_text_buffer_get_modified (GtkTextBuffer *buffer)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), FALSE);
|
||
|
||
return buffer->priv->modified;
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_set_modified:
|
||
* @buffer: a #GtkTextBuffer
|
||
* @setting: modification flag setting
|
||
*
|
||
* Used to keep track of whether the buffer has been modified since the
|
||
* last time it was saved. Whenever the buffer is saved to disk, call
|
||
* gtk_text_buffer_set_modified (@buffer, FALSE). When the buffer is modified,
|
||
* it will automatically toggled on the modified bit again. When the modified
|
||
* bit flips, the buffer emits the #GtkTextBuffer::modified-changed signal.
|
||
**/
|
||
void
|
||
gtk_text_buffer_set_modified (GtkTextBuffer *buffer,
|
||
gboolean setting)
|
||
{
|
||
g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
|
||
|
||
setting = !!setting;
|
||
|
||
if (buffer->priv->modified != setting)
|
||
{
|
||
buffer->priv->modified = setting;
|
||
gtk_text_history_modified_changed (buffer->priv->history, setting);
|
||
g_signal_emit (buffer, signals[MODIFIED_CHANGED], 0);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_get_has_selection:
|
||
* @buffer: a #GtkTextBuffer
|
||
*
|
||
* Indicates whether the buffer has some text currently selected.
|
||
*
|
||
* Returns: %TRUE if the there is text selected
|
||
**/
|
||
gboolean
|
||
gtk_text_buffer_get_has_selection (GtkTextBuffer *buffer)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), FALSE);
|
||
|
||
return buffer->priv->has_selection;
|
||
}
|
||
|
||
|
||
/*
|
||
* Assorted other stuff
|
||
*/
|
||
|
||
/**
|
||
* gtk_text_buffer_get_line_count:
|
||
* @buffer: a #GtkTextBuffer
|
||
*
|
||
* Obtains the number of lines in the buffer. This value is cached, so
|
||
* the function is very fast.
|
||
*
|
||
* Returns: number of lines in the buffer
|
||
**/
|
||
int
|
||
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));
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_get_char_count:
|
||
* @buffer: a #GtkTextBuffer
|
||
*
|
||
* Gets the number of characters in the buffer; note that characters
|
||
* and bytes are not the same, you can’t e.g. expect the contents of
|
||
* the buffer in string form to be this many bytes long. The character
|
||
* count is cached, so this function is very fast.
|
||
*
|
||
* Returns: number of characters in the buffer
|
||
**/
|
||
int
|
||
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));
|
||
}
|
||
|
||
static GtkTextBuffer *
|
||
create_clipboard_contents_buffer (GtkTextBuffer *buffer,
|
||
GtkTextIter *start_iter,
|
||
GtkTextIter *end_iter)
|
||
{
|
||
GtkTextIter start, end;
|
||
GtkTextBuffer *contents;
|
||
|
||
contents = gtk_text_buffer_new (gtk_text_buffer_get_tag_table (buffer));
|
||
|
||
gtk_text_buffer_get_iter_at_offset (contents, &start, 0);
|
||
gtk_text_buffer_insert_range (contents, &start, start_iter, end_iter);
|
||
gtk_text_buffer_get_bounds (contents, &start, &end);
|
||
gtk_text_buffer_select_range (contents, &start, &end);
|
||
|
||
/* Ref the source buffer as long as the clipboard contents buffer
|
||
* exists, because it's needed for serializing the contents buffer.
|
||
* See http://bugzilla.gnome.org/show_bug.cgi?id=339195
|
||
*/
|
||
g_object_ref (buffer);
|
||
g_object_weak_ref (G_OBJECT (contents), (GWeakNotify) g_object_unref, buffer);
|
||
|
||
return contents;
|
||
}
|
||
|
||
static void
|
||
get_paste_point (GtkTextBuffer *buffer,
|
||
GtkTextIter *iter,
|
||
gboolean clear_afterward)
|
||
{
|
||
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);
|
||
if (clear_afterward)
|
||
gtk_text_buffer_delete_mark (buffer, paste_point_override);
|
||
}
|
||
else
|
||
{
|
||
gtk_text_buffer_get_iter_at_mark (buffer, &insert_point,
|
||
gtk_text_buffer_get_insert (buffer));
|
||
}
|
||
|
||
*iter = insert_point;
|
||
}
|
||
|
||
static void
|
||
pre_paste_prep (ClipboardRequest *request_data,
|
||
GtkTextIter *insert_point)
|
||
{
|
||
GtkTextBuffer *buffer = request_data->buffer;
|
||
|
||
get_paste_point (buffer, insert_point, TRUE);
|
||
|
||
if (request_data->replace_selection)
|
||
{
|
||
GtkTextIter start, end;
|
||
|
||
if (gtk_text_buffer_get_selection_bounds (buffer, &start, &end))
|
||
{
|
||
if (request_data->interactive)
|
||
gtk_text_buffer_delete_interactive (request_data->buffer,
|
||
&start,
|
||
&end,
|
||
request_data->default_editable);
|
||
else
|
||
gtk_text_buffer_delete (request_data->buffer, &start, &end);
|
||
|
||
*insert_point = start;
|
||
}
|
||
}
|
||
}
|
||
|
||
static void
|
||
emit_paste_done (GtkTextBuffer *buffer,
|
||
GdkClipboard *clipboard)
|
||
{
|
||
g_signal_emit (buffer, signals[PASTE_DONE], 0, clipboard);
|
||
}
|
||
|
||
static void
|
||
free_clipboard_request (ClipboardRequest *request_data)
|
||
{
|
||
g_object_unref (request_data->buffer);
|
||
g_slice_free (ClipboardRequest, request_data);
|
||
}
|
||
|
||
#if 0
|
||
/* These are pretty handy functions; maybe something like them
|
||
* should be in the public API. Also, there are other places in this
|
||
* file where they could be used.
|
||
*/
|
||
static gpointer
|
||
save_iter (const GtkTextIter *iter,
|
||
gboolean left_gravity)
|
||
{
|
||
return gtk_text_buffer_create_mark (gtk_text_iter_get_buffer (iter),
|
||
NULL,
|
||
iter,
|
||
TRUE);
|
||
}
|
||
|
||
static void
|
||
restore_iter (const GtkTextIter *iter,
|
||
gpointer save_id)
|
||
{
|
||
gtk_text_buffer_get_iter_at_mark (gtk_text_mark_get_buffer (save_id),
|
||
(GtkTextIter*) iter,
|
||
save_id);
|
||
gtk_text_buffer_delete_mark (gtk_text_mark_get_buffer (save_id),
|
||
save_id);
|
||
}
|
||
#endif
|
||
|
||
static void
|
||
paste_from_buffer (GdkClipboard *clipboard,
|
||
ClipboardRequest *request_data,
|
||
GtkTextBuffer *src_buffer,
|
||
const GtkTextIter *start,
|
||
const GtkTextIter *end)
|
||
{
|
||
GtkTextIter insert_point;
|
||
GtkTextBuffer *buffer = request_data->buffer;
|
||
|
||
/* We're about to emit a bunch of signals, so be safe */
|
||
g_object_ref (src_buffer);
|
||
|
||
/* Replacing the selection with itself */
|
||
if (request_data->replace_selection &&
|
||
buffer == src_buffer)
|
||
{
|
||
/* Clear the paste point if needed */
|
||
get_paste_point (buffer, &insert_point, TRUE);
|
||
goto done;
|
||
}
|
||
|
||
if (request_data->interactive)
|
||
gtk_text_buffer_begin_user_action (buffer);
|
||
|
||
pre_paste_prep (request_data, &insert_point);
|
||
|
||
if (!gtk_text_iter_equal (start, end))
|
||
{
|
||
if (!request_data->interactive ||
|
||
(gtk_text_iter_can_insert (&insert_point,
|
||
request_data->default_editable)))
|
||
gtk_text_buffer_real_insert_range (buffer,
|
||
&insert_point,
|
||
start,
|
||
end,
|
||
request_data->interactive);
|
||
}
|
||
|
||
if (request_data->interactive)
|
||
gtk_text_buffer_end_user_action (buffer);
|
||
|
||
done:
|
||
emit_paste_done (buffer, clipboard);
|
||
|
||
g_object_unref (src_buffer);
|
||
|
||
free_clipboard_request (request_data);
|
||
}
|
||
|
||
static void
|
||
gtk_text_buffer_paste_clipboard_finish (GObject *source,
|
||
GAsyncResult *result,
|
||
gpointer data)
|
||
{
|
||
GdkClipboard *clipboard = GDK_CLIPBOARD (source);
|
||
ClipboardRequest *request_data = data;
|
||
GtkTextBuffer *src_buffer;
|
||
GtkTextIter start, end;
|
||
const GValue *value;
|
||
|
||
value = gdk_clipboard_read_value_finish (clipboard, result, NULL);
|
||
if (value == NULL)
|
||
return;
|
||
|
||
src_buffer = g_value_get_object (value);
|
||
|
||
if (gtk_text_buffer_get_selection_bounds (src_buffer, &start, &end))
|
||
paste_from_buffer (clipboard, request_data, src_buffer,
|
||
&start, &end);
|
||
}
|
||
|
||
typedef struct
|
||
{
|
||
GdkClipboard *clipboard;
|
||
guint ref_count;
|
||
} SelectionClipboard;
|
||
|
||
static void
|
||
update_selection_clipboards (GtkTextBuffer *buffer)
|
||
{
|
||
GtkTextBufferPrivate *priv;
|
||
GtkTextIter start;
|
||
GtkTextIter end;
|
||
GSList *l;
|
||
|
||
priv = buffer->priv;
|
||
|
||
if (gtk_text_buffer_get_selection_bounds (buffer, &start, &end))
|
||
{
|
||
if (priv->selection_content)
|
||
gdk_content_provider_content_changed (priv->selection_content);
|
||
else
|
||
priv->selection_content = gtk_text_buffer_content_new (buffer);
|
||
|
||
for (l = priv->selection_clipboards; l; l = l->next)
|
||
{
|
||
SelectionClipboard *selection_clipboard = l->data;
|
||
gdk_clipboard_set_content (selection_clipboard->clipboard, priv->selection_content);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if (priv->selection_content)
|
||
{
|
||
GTK_TEXT_BUFFER_CONTENT (priv->selection_content)->text_buffer = NULL;
|
||
for (l = priv->selection_clipboards; l; l = l->next)
|
||
{
|
||
SelectionClipboard *selection_clipboard = l->data;
|
||
GdkClipboard *clipboard = selection_clipboard->clipboard;
|
||
if (gdk_clipboard_get_content (clipboard) == priv->selection_content)
|
||
gdk_clipboard_set_content (clipboard, NULL);
|
||
}
|
||
g_clear_object (&priv->selection_content);
|
||
}
|
||
}
|
||
}
|
||
|
||
static SelectionClipboard *
|
||
find_selection_clipboard (GtkTextBuffer *buffer,
|
||
GdkClipboard *clipboard)
|
||
{
|
||
GSList *tmp_list = buffer->priv->selection_clipboards;
|
||
while (tmp_list)
|
||
{
|
||
SelectionClipboard *selection_clipboard = tmp_list->data;
|
||
if (selection_clipboard->clipboard == clipboard)
|
||
return selection_clipboard;
|
||
|
||
tmp_list = tmp_list->next;
|
||
}
|
||
|
||
return NULL;
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_add_selection_clipboard:
|
||
* @buffer: a #GtkTextBuffer
|
||
* @clipboard: a #GdkClipboard
|
||
*
|
||
* Adds @clipboard to the list of clipboards in which the selection
|
||
* contents of @buffer are available. In most cases, @clipboard will be
|
||
* the #GdkClipboard returned by gtk_widget_get_primary_clipboard()
|
||
* for a view of @buffer.
|
||
**/
|
||
void
|
||
gtk_text_buffer_add_selection_clipboard (GtkTextBuffer *buffer,
|
||
GdkClipboard *clipboard)
|
||
{
|
||
SelectionClipboard *selection_clipboard;
|
||
|
||
g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
|
||
g_return_if_fail (clipboard != NULL);
|
||
|
||
selection_clipboard = find_selection_clipboard (buffer, clipboard);
|
||
if (selection_clipboard)
|
||
{
|
||
selection_clipboard->ref_count++;
|
||
}
|
||
else
|
||
{
|
||
selection_clipboard = g_slice_new (SelectionClipboard);
|
||
|
||
selection_clipboard->clipboard = clipboard;
|
||
selection_clipboard->ref_count = 1;
|
||
|
||
buffer->priv->selection_clipboards = g_slist_prepend (buffer->priv->selection_clipboards,
|
||
selection_clipboard);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_remove_selection_clipboard:
|
||
* @buffer: a #GtkTextBuffer
|
||
* @clipboard: a #GdkClipboard added to @buffer by
|
||
* gtk_text_buffer_add_selection_clipboard()
|
||
*
|
||
* Removes a #GdkClipboard added with
|
||
* gtk_text_buffer_add_selection_clipboard().
|
||
**/
|
||
void
|
||
gtk_text_buffer_remove_selection_clipboard (GtkTextBuffer *buffer,
|
||
GdkClipboard *clipboard)
|
||
{
|
||
GtkTextBufferPrivate *priv;
|
||
SelectionClipboard *selection_clipboard;
|
||
|
||
g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
|
||
g_return_if_fail (clipboard != NULL);
|
||
|
||
selection_clipboard = find_selection_clipboard (buffer, clipboard);
|
||
g_return_if_fail (selection_clipboard != NULL);
|
||
|
||
priv = buffer->priv;
|
||
selection_clipboard->ref_count--;
|
||
if (selection_clipboard->ref_count == 0)
|
||
{
|
||
if (priv->selection_content &&
|
||
gdk_clipboard_get_content (clipboard) == priv->selection_content)
|
||
gdk_clipboard_set_content (clipboard, NULL);
|
||
|
||
buffer->priv->selection_clipboards = g_slist_remove (buffer->priv->selection_clipboards,
|
||
selection_clipboard);
|
||
|
||
g_slice_free (SelectionClipboard, selection_clipboard);
|
||
}
|
||
}
|
||
|
||
static void
|
||
remove_all_selection_clipboards (GtkTextBuffer *buffer)
|
||
{
|
||
GtkTextBufferPrivate *priv = buffer->priv;
|
||
GSList *l;
|
||
|
||
for (l = priv->selection_clipboards; l != NULL; l = l->next)
|
||
{
|
||
SelectionClipboard *selection_clipboard = l->data;
|
||
g_slice_free (SelectionClipboard, selection_clipboard);
|
||
}
|
||
|
||
g_slist_free (priv->selection_clipboards);
|
||
priv->selection_clipboards = NULL;
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_paste_clipboard:
|
||
* @buffer: a #GtkTextBuffer
|
||
* @clipboard: the #GdkClipboard to paste from
|
||
* @override_location: (allow-none): location to insert pasted text, or %NULL
|
||
* @default_editable: whether the buffer is editable by default
|
||
*
|
||
* Pastes the contents of a clipboard. If @override_location is %NULL, the
|
||
* pasted text will be inserted at the cursor position, or the buffer selection
|
||
* will be replaced if the selection is non-empty.
|
||
*
|
||
* Note: pasting is asynchronous, that is, we’ll ask for the paste data and
|
||
* return, and at some point later after the main loop runs, the paste data will
|
||
* be inserted.
|
||
**/
|
||
void
|
||
gtk_text_buffer_paste_clipboard (GtkTextBuffer *buffer,
|
||
GdkClipboard *clipboard,
|
||
GtkTextIter *override_location,
|
||
gboolean default_editable)
|
||
{
|
||
ClipboardRequest *data = g_slice_new (ClipboardRequest);
|
||
GtkTextIter paste_point;
|
||
GtkTextIter start, end;
|
||
|
||
if (override_location != NULL)
|
||
gtk_text_buffer_create_mark (buffer,
|
||
"gtk_paste_point_override",
|
||
override_location, FALSE);
|
||
|
||
data->buffer = g_object_ref (buffer);
|
||
data->interactive = TRUE;
|
||
data->default_editable = !!default_editable;
|
||
|
||
/* 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
|
||
* occurred, unselecting any selected text. The replace_selection
|
||
* flag toggles this behavior.
|
||
*/
|
||
data->replace_selection = FALSE;
|
||
|
||
get_paste_point (buffer, &paste_point, FALSE);
|
||
if (gtk_text_buffer_get_selection_bounds (buffer, &start, &end) &&
|
||
(gtk_text_iter_in_range (&paste_point, &start, &end) ||
|
||
gtk_text_iter_equal (&paste_point, &end)))
|
||
data->replace_selection = TRUE;
|
||
|
||
gdk_clipboard_read_value_async (clipboard,
|
||
GTK_TYPE_TEXT_BUFFER,
|
||
G_PRIORITY_DEFAULT,
|
||
NULL,
|
||
gtk_text_buffer_paste_clipboard_finish,
|
||
data);
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_delete_selection:
|
||
* @buffer: a #GtkTextBuffer
|
||
* @interactive: whether the deletion is caused by user interaction
|
||
* @default_editable: whether the buffer is editable by default
|
||
*
|
||
* Deletes the range between the “insert” and “selection_bound” marks,
|
||
* that is, the currently-selected text. If @interactive is %TRUE,
|
||
* the editability of the selection will be considered (users can’t delete
|
||
* uneditable text).
|
||
*
|
||
* Returns: whether there was a non-empty selection to delete
|
||
**/
|
||
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 */
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_backspace:
|
||
* @buffer: a #GtkTextBuffer
|
||
* @iter: a position in @buffer
|
||
* @interactive: whether the deletion is caused by user interaction
|
||
* @default_editable: whether the buffer is editable by default
|
||
*
|
||
* Performs the appropriate action as if the user hit the delete
|
||
* key with the cursor at the position specified by @iter. In the
|
||
* normal case a single character will be deleted, but when
|
||
* combining accents are involved, more than one character can
|
||
* be deleted, and when precomposed character and accent combinations
|
||
* are involved, less than one character will be deleted.
|
||
*
|
||
* Because the buffer is modified, all outstanding iterators become
|
||
* invalid after calling this function; however, the @iter will be
|
||
* re-initialized to point to the location where text was deleted.
|
||
*
|
||
* Returns: %TRUE if the buffer was modified
|
||
**/
|
||
gboolean
|
||
gtk_text_buffer_backspace (GtkTextBuffer *buffer,
|
||
GtkTextIter *iter,
|
||
gboolean interactive,
|
||
gboolean default_editable)
|
||
{
|
||
char *cluster_text;
|
||
GtkTextIter start;
|
||
GtkTextIter end;
|
||
gboolean retval = FALSE;
|
||
const PangoLogAttr *attrs;
|
||
int offset;
|
||
gboolean backspace_deletes_character;
|
||
|
||
g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), FALSE);
|
||
g_return_val_if_fail (iter != NULL, FALSE);
|
||
|
||
start = *iter;
|
||
end = *iter;
|
||
|
||
attrs = _gtk_text_buffer_get_line_log_attrs (buffer, &start, NULL);
|
||
offset = gtk_text_iter_get_line_offset (&start);
|
||
backspace_deletes_character = attrs[offset].backspace_deletes_character;
|
||
|
||
gtk_text_iter_backward_cursor_position (&start);
|
||
|
||
if (gtk_text_iter_equal (&start, &end))
|
||
return FALSE;
|
||
|
||
cluster_text = gtk_text_iter_get_text (&start, &end);
|
||
|
||
if (interactive)
|
||
gtk_text_buffer_begin_user_action (buffer);
|
||
|
||
if (gtk_text_buffer_delete_interactive (buffer, &start, &end,
|
||
default_editable))
|
||
{
|
||
/* special case \r\n, since we never want to reinsert \r */
|
||
if (backspace_deletes_character && strcmp ("\r\n", cluster_text))
|
||
{
|
||
char *normalized_text = g_utf8_normalize (cluster_text,
|
||
strlen (cluster_text),
|
||
G_NORMALIZE_NFD);
|
||
glong len = g_utf8_strlen (normalized_text, -1);
|
||
|
||
if (len > 1)
|
||
gtk_text_buffer_insert_interactive (buffer,
|
||
&start,
|
||
normalized_text,
|
||
g_utf8_offset_to_pointer (normalized_text, len - 1) - normalized_text,
|
||
default_editable);
|
||
|
||
g_free (normalized_text);
|
||
}
|
||
|
||
retval = TRUE;
|
||
}
|
||
|
||
if (interactive)
|
||
gtk_text_buffer_end_user_action (buffer);
|
||
|
||
g_free (cluster_text);
|
||
|
||
/* Revalidate the users iter */
|
||
*iter = start;
|
||
|
||
return retval;
|
||
}
|
||
|
||
static void
|
||
cut_or_copy (GtkTextBuffer *buffer,
|
||
GdkClipboard *clipboard,
|
||
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_order (&start, &end);
|
||
}
|
||
}
|
||
|
||
if (!gtk_text_iter_equal (&start, &end))
|
||
{
|
||
GtkTextBuffer *contents;
|
||
|
||
contents = create_clipboard_contents_buffer (buffer, &start, &end);
|
||
gdk_clipboard_set (clipboard, GTK_TYPE_TEXT_BUFFER, contents);
|
||
g_object_unref (contents);
|
||
|
||
if (delete_region_after)
|
||
{
|
||
if (interactive)
|
||
gtk_text_buffer_delete_interactive (buffer, &start, &end,
|
||
default_editable);
|
||
else
|
||
gtk_text_buffer_delete (buffer, &start, &end);
|
||
}
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_get_selection_content:
|
||
* @buffer: a #GtkTextBuffer
|
||
*
|
||
* Get a content provider for this buffer.
|
||
*
|
||
* Returns: (transfer full): a new #GdkContentProvider.
|
||
**/
|
||
GdkContentProvider *
|
||
gtk_text_buffer_get_selection_content (GtkTextBuffer *buffer)
|
||
{
|
||
return gtk_text_buffer_content_new (buffer);
|
||
}
|
||
|
||
|
||
/**
|
||
* gtk_text_buffer_cut_clipboard:
|
||
* @buffer: a #GtkTextBuffer
|
||
* @clipboard: the #GdkClipboard object to cut to
|
||
* @default_editable: default editability of the buffer
|
||
*
|
||
* Copies the currently-selected text to a clipboard, then deletes
|
||
* said text if it’s editable.
|
||
**/
|
||
void
|
||
gtk_text_buffer_cut_clipboard (GtkTextBuffer *buffer,
|
||
GdkClipboard *clipboard,
|
||
gboolean default_editable)
|
||
{
|
||
gtk_text_buffer_begin_user_action (buffer);
|
||
cut_or_copy (buffer, clipboard, TRUE, TRUE, default_editable);
|
||
gtk_text_buffer_end_user_action (buffer);
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_copy_clipboard:
|
||
* @buffer: a #GtkTextBuffer
|
||
* @clipboard: the #GdkClipboard object to copy to
|
||
*
|
||
* Copies the currently-selected text to a clipboard.
|
||
**/
|
||
void
|
||
gtk_text_buffer_copy_clipboard (GtkTextBuffer *buffer,
|
||
GdkClipboard *clipboard)
|
||
{
|
||
cut_or_copy (buffer, clipboard, FALSE, TRUE, TRUE);
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_get_selection_bounds:
|
||
* @buffer: a #GtkTextBuffer a #GtkTextBuffer
|
||
* @start: (out): iterator to initialize with selection start
|
||
* @end: (out): 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.
|
||
*
|
||
* Returns: 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);
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_begin_user_action:
|
||
* @buffer: a #GtkTextBuffer
|
||
*
|
||
* Called to indicate that the buffer operations between here and a
|
||
* call to gtk_text_buffer_end_user_action() are part of a single
|
||
* user-visible operation. The operations between
|
||
* gtk_text_buffer_begin_user_action() and
|
||
* gtk_text_buffer_end_user_action() can then be grouped when creating
|
||
* an undo stack. #GtkTextBuffer maintains a count of calls to
|
||
* gtk_text_buffer_begin_user_action() that have not been closed with
|
||
* a call to gtk_text_buffer_end_user_action(), and emits the
|
||
* “begin-user-action” and “end-user-action” signals only for the
|
||
* outermost pair of calls. This allows you to build user actions
|
||
* from other user actions.
|
||
*
|
||
* The “interactive” buffer mutation functions, such as
|
||
* gtk_text_buffer_insert_interactive(), automatically call begin/end
|
||
* user action around the buffer operations they perform, so there's
|
||
* no need to add extra calls if you user action consists solely of a
|
||
* single call to one of those functions.
|
||
**/
|
||
void
|
||
gtk_text_buffer_begin_user_action (GtkTextBuffer *buffer)
|
||
{
|
||
g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
|
||
|
||
buffer->priv->user_action_count += 1;
|
||
|
||
if (buffer->priv->user_action_count == 1)
|
||
{
|
||
/* Outermost nested user action begin emits the signal */
|
||
g_signal_emit (buffer, signals[BEGIN_USER_ACTION], 0);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_end_user_action:
|
||
* @buffer: a #GtkTextBuffer
|
||
*
|
||
* Should be paired with a call to gtk_text_buffer_begin_user_action().
|
||
* See that function for a full explanation.
|
||
**/
|
||
void
|
||
gtk_text_buffer_end_user_action (GtkTextBuffer *buffer)
|
||
{
|
||
g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
|
||
g_return_if_fail (buffer->priv->user_action_count > 0);
|
||
|
||
buffer->priv->user_action_count -= 1;
|
||
|
||
if (buffer->priv->user_action_count == 0)
|
||
{
|
||
/* Ended the outermost-nested user action end, so emit the signal */
|
||
g_signal_emit (buffer, signals[END_USER_ACTION], 0);
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Logical attribute cache
|
||
*/
|
||
|
||
#define ATTR_CACHE_SIZE 2
|
||
|
||
typedef struct _CacheEntry CacheEntry;
|
||
struct _CacheEntry
|
||
{
|
||
int line;
|
||
int char_len;
|
||
PangoLogAttr *attrs;
|
||
};
|
||
|
||
struct _GtkTextLogAttrCache
|
||
{
|
||
int chars_changed_stamp;
|
||
CacheEntry entries[ATTR_CACHE_SIZE];
|
||
};
|
||
|
||
static void
|
||
free_log_attr_cache (GtkTextLogAttrCache *cache)
|
||
{
|
||
int i;
|
||
|
||
for (i = 0; i < ATTR_CACHE_SIZE; i++)
|
||
g_free (cache->entries[i].attrs);
|
||
|
||
g_slice_free (GtkTextLogAttrCache, cache);
|
||
}
|
||
|
||
static void
|
||
clear_log_attr_cache (GtkTextLogAttrCache *cache)
|
||
{
|
||
int i;
|
||
|
||
for (i = 0; i < ATTR_CACHE_SIZE; i++)
|
||
{
|
||
g_free (cache->entries[i].attrs);
|
||
cache->entries[i].attrs = NULL;
|
||
}
|
||
}
|
||
|
||
static PangoLogAttr*
|
||
compute_log_attrs (const GtkTextIter *iter,
|
||
int *char_lenp)
|
||
{
|
||
GtkTextIter start;
|
||
GtkTextIter end;
|
||
char *paragraph;
|
||
int char_len, byte_len;
|
||
PangoLogAttr *attrs = NULL;
|
||
|
||
start = *iter;
|
||
end = *iter;
|
||
|
||
gtk_text_iter_set_line_offset (&start, 0);
|
||
gtk_text_iter_forward_line (&end);
|
||
|
||
paragraph = gtk_text_iter_get_slice (&start, &end);
|
||
char_len = g_utf8_strlen (paragraph, -1);
|
||
byte_len = strlen (paragraph);
|
||
|
||
if (char_lenp != NULL)
|
||
*char_lenp = char_len;
|
||
|
||
attrs = g_new (PangoLogAttr, char_len + 1);
|
||
|
||
/* FIXME we need to follow PangoLayout and allow different language
|
||
* tags within the paragraph
|
||
*/
|
||
pango_get_log_attrs (paragraph, byte_len, -1,
|
||
gtk_text_iter_get_language (&start),
|
||
attrs,
|
||
char_len + 1);
|
||
|
||
g_free (paragraph);
|
||
|
||
return attrs;
|
||
}
|
||
|
||
/* The return value from this is valid until you call this a second time.
|
||
* Returns (char_len + 1) PangoLogAttr's, one for each text position.
|
||
*/
|
||
const PangoLogAttr *
|
||
_gtk_text_buffer_get_line_log_attrs (GtkTextBuffer *buffer,
|
||
const GtkTextIter *anywhere_in_line,
|
||
int *char_len)
|
||
{
|
||
GtkTextBufferPrivate *priv;
|
||
int line;
|
||
GtkTextLogAttrCache *cache;
|
||
int i;
|
||
|
||
g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), NULL);
|
||
g_return_val_if_fail (anywhere_in_line != NULL, NULL);
|
||
|
||
priv = buffer->priv;
|
||
|
||
/* FIXME we also need to recompute log attrs if the language tag at
|
||
* the start of a paragraph changes
|
||
*/
|
||
|
||
if (priv->log_attr_cache == NULL)
|
||
{
|
||
priv->log_attr_cache = g_slice_new0 (GtkTextLogAttrCache);
|
||
priv->log_attr_cache->chars_changed_stamp =
|
||
_gtk_text_btree_get_chars_changed_stamp (get_btree (buffer));
|
||
}
|
||
else if (priv->log_attr_cache->chars_changed_stamp !=
|
||
_gtk_text_btree_get_chars_changed_stamp (get_btree (buffer)))
|
||
{
|
||
clear_log_attr_cache (priv->log_attr_cache);
|
||
}
|
||
|
||
cache = priv->log_attr_cache;
|
||
line = gtk_text_iter_get_line (anywhere_in_line);
|
||
|
||
for (i = 0; i < ATTR_CACHE_SIZE; i++)
|
||
{
|
||
if (cache->entries[i].attrs != NULL &&
|
||
cache->entries[i].line == line)
|
||
{
|
||
if (char_len != NULL)
|
||
*char_len = cache->entries[i].char_len;
|
||
return cache->entries[i].attrs;
|
||
}
|
||
}
|
||
|
||
/* Not in cache; open up the first cache entry */
|
||
g_free (cache->entries[ATTR_CACHE_SIZE-1].attrs);
|
||
|
||
memmove (cache->entries + 1, cache->entries,
|
||
sizeof (CacheEntry) * (ATTR_CACHE_SIZE - 1));
|
||
|
||
cache->entries[0].line = line;
|
||
cache->entries[0].attrs = compute_log_attrs (anywhere_in_line,
|
||
&cache->entries[0].char_len);
|
||
|
||
if (char_len != NULL)
|
||
*char_len = cache->entries[0].char_len;
|
||
|
||
return cache->entries[0].attrs;
|
||
}
|
||
|
||
void
|
||
_gtk_text_buffer_notify_will_remove_tag (GtkTextBuffer *buffer,
|
||
GtkTextTag *tag)
|
||
{
|
||
/* This removes tag from the buffer, but DOESN'T emit the
|
||
* remove-tag signal, because we can't afford to have user
|
||
* code messing things up at this point; the tag MUST be removed
|
||
* entirely.
|
||
*/
|
||
if (buffer->priv->btree)
|
||
_gtk_text_btree_notify_will_remove_tag (buffer->priv->btree, tag);
|
||
}
|
||
|
||
/*
|
||
* Debug spew
|
||
*/
|
||
|
||
void
|
||
_gtk_text_buffer_spew (GtkTextBuffer *buffer)
|
||
{
|
||
_gtk_text_btree_spew (get_btree (buffer));
|
||
}
|
||
|
||
static GtkTextTag *
|
||
get_tag_for_attributes (PangoAttrIterator *iter)
|
||
{
|
||
PangoAttribute *attr;
|
||
GtkTextTag *tag;
|
||
|
||
tag = gtk_text_tag_new (NULL);
|
||
|
||
attr = pango_attr_iterator_get (iter, PANGO_ATTR_LANGUAGE);
|
||
if (attr)
|
||
g_object_set (tag, "language", pango_language_to_string (((PangoAttrLanguage*)attr)->value), NULL);
|
||
|
||
attr = pango_attr_iterator_get (iter, PANGO_ATTR_FAMILY);
|
||
if (attr)
|
||
g_object_set (tag, "family", ((PangoAttrString*)attr)->value, NULL);
|
||
|
||
attr = pango_attr_iterator_get (iter, PANGO_ATTR_STYLE);
|
||
if (attr)
|
||
g_object_set (tag, "style", ((PangoAttrInt*)attr)->value, NULL);
|
||
|
||
attr = pango_attr_iterator_get (iter, PANGO_ATTR_WEIGHT);
|
||
if (attr)
|
||
g_object_set (tag, "weight", ((PangoAttrInt*)attr)->value, NULL);
|
||
|
||
attr = pango_attr_iterator_get (iter, PANGO_ATTR_VARIANT);
|
||
if (attr)
|
||
g_object_set (tag, "variant", ((PangoAttrInt*)attr)->value, NULL);
|
||
|
||
attr = pango_attr_iterator_get (iter, PANGO_ATTR_STRETCH);
|
||
if (attr)
|
||
g_object_set (tag, "stretch", ((PangoAttrInt*)attr)->value, NULL);
|
||
|
||
attr = pango_attr_iterator_get (iter, PANGO_ATTR_SIZE);
|
||
if (attr)
|
||
g_object_set (tag, "size", ((PangoAttrInt*)attr)->value, NULL);
|
||
|
||
attr = pango_attr_iterator_get (iter, PANGO_ATTR_FONT_DESC);
|
||
if (attr)
|
||
g_object_set (tag, "font-desc", ((PangoAttrFontDesc*)attr)->desc, NULL);
|
||
|
||
attr = pango_attr_iterator_get (iter, PANGO_ATTR_FOREGROUND);
|
||
if (attr)
|
||
{
|
||
PangoColor *color;
|
||
GdkRGBA rgba;
|
||
|
||
color = &((PangoAttrColor*)attr)->color;
|
||
rgba.red = color->red / 65535.;
|
||
rgba.green = color->green / 65535.;
|
||
rgba.blue = color->blue / 65535.;
|
||
rgba.alpha = 1.;
|
||
g_object_set (tag, "foreground-rgba", &rgba, NULL);
|
||
};
|
||
|
||
attr = pango_attr_iterator_get (iter, PANGO_ATTR_BACKGROUND);
|
||
if (attr)
|
||
{
|
||
PangoColor *color;
|
||
GdkRGBA rgba;
|
||
|
||
color = &((PangoAttrColor*)attr)->color;
|
||
rgba.red = color->red / 65535.;
|
||
rgba.green = color->green / 65535.;
|
||
rgba.blue = color->blue / 65535.;
|
||
rgba.alpha = 1.;
|
||
g_object_set (tag, "background-rgba", &rgba, NULL);
|
||
};
|
||
|
||
attr = pango_attr_iterator_get (iter, PANGO_ATTR_UNDERLINE);
|
||
if (attr)
|
||
g_object_set (tag, "underline", ((PangoAttrInt*)attr)->value, NULL);
|
||
|
||
attr = pango_attr_iterator_get (iter, PANGO_ATTR_UNDERLINE_COLOR);
|
||
if (attr)
|
||
{
|
||
PangoColor *color;
|
||
GdkRGBA rgba;
|
||
|
||
color = &((PangoAttrColor*)attr)->color;
|
||
rgba.red = color->red / 65535.;
|
||
rgba.green = color->green / 65535.;
|
||
rgba.blue = color->blue / 65535.;
|
||
rgba.alpha = 1.;
|
||
g_object_set (tag, "underline-rgba", &rgba, NULL);
|
||
}
|
||
|
||
attr = pango_attr_iterator_get (iter, PANGO_ATTR_OVERLINE);
|
||
if (attr)
|
||
g_object_set (tag, "overline", ((PangoAttrInt*)attr)->value, NULL);
|
||
|
||
attr = pango_attr_iterator_get (iter, PANGO_ATTR_OVERLINE_COLOR);
|
||
if (attr)
|
||
{
|
||
PangoColor *color;
|
||
GdkRGBA rgba;
|
||
|
||
color = &((PangoAttrColor*)attr)->color;
|
||
rgba.red = color->red / 65535.;
|
||
rgba.green = color->green / 65535.;
|
||
rgba.blue = color->blue / 65535.;
|
||
rgba.alpha = 1.;
|
||
g_object_set (tag, "overline-rgba", &rgba, NULL);
|
||
}
|
||
|
||
attr = pango_attr_iterator_get (iter, PANGO_ATTR_STRIKETHROUGH);
|
||
if (attr)
|
||
g_object_set (tag, "strikethrough", (gboolean) (((PangoAttrInt*)attr)->value != 0), NULL);
|
||
|
||
attr = pango_attr_iterator_get (iter, PANGO_ATTR_STRIKETHROUGH_COLOR);
|
||
if (attr)
|
||
{
|
||
PangoColor *color;
|
||
GdkRGBA rgba;
|
||
|
||
color = &((PangoAttrColor*)attr)->color;
|
||
rgba.red = color->red / 65535.;
|
||
rgba.green = color->green / 65535.;
|
||
rgba.blue = color->blue / 65535.;
|
||
rgba.alpha = 1.;
|
||
g_object_set (tag, "strikethrough-rgba", &rgba, NULL);
|
||
}
|
||
|
||
attr = pango_attr_iterator_get (iter, PANGO_ATTR_RISE);
|
||
if (attr)
|
||
g_object_set (tag, "rise", ((PangoAttrInt*)attr)->value, NULL);
|
||
|
||
attr = pango_attr_iterator_get (iter, PANGO_ATTR_SCALE);
|
||
if (attr)
|
||
g_object_set (tag, "scale", ((PangoAttrFloat*)attr)->value, NULL);
|
||
|
||
attr = pango_attr_iterator_get (iter, PANGO_ATTR_FALLBACK);
|
||
if (attr)
|
||
g_object_set (tag, "fallback", (gboolean) (((PangoAttrInt*)attr)->value != 0), NULL);
|
||
|
||
attr = pango_attr_iterator_get (iter, PANGO_ATTR_LETTER_SPACING);
|
||
if (attr)
|
||
g_object_set (tag, "letter-spacing", ((PangoAttrInt*)attr)->value, NULL);
|
||
|
||
attr = pango_attr_iterator_get (iter, PANGO_ATTR_FONT_FEATURES);
|
||
if (attr)
|
||
g_object_set (tag, "font-features", ((PangoAttrString*)attr)->value, NULL);
|
||
|
||
attr = pango_attr_iterator_get (iter, PANGO_ATTR_ALLOW_BREAKS);
|
||
if (attr)
|
||
g_object_set (tag, "allow-breaks", ((PangoAttrInt*)attr)->value, NULL);
|
||
|
||
attr = pango_attr_iterator_get (iter, PANGO_ATTR_SHOW);
|
||
if (attr)
|
||
g_object_set (tag, "show-spaces", ((PangoAttrInt*)attr)->value, NULL);
|
||
|
||
attr = pango_attr_iterator_get (iter, PANGO_ATTR_INSERT_HYPHENS);
|
||
if (attr)
|
||
g_object_set (tag, "insert-hyphens", ((PangoAttrInt*)attr)->value, NULL);
|
||
|
||
return tag;
|
||
}
|
||
|
||
static void
|
||
gtk_text_buffer_insert_with_attributes (GtkTextBuffer *buffer,
|
||
GtkTextIter *iter,
|
||
const char *text,
|
||
PangoAttrList *attributes)
|
||
{
|
||
GtkTextMark *mark;
|
||
PangoAttrIterator *attr;
|
||
GtkTextTagTable *tags;
|
||
|
||
g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
|
||
|
||
if (!attributes)
|
||
{
|
||
gtk_text_buffer_insert (buffer, iter, text, -1);
|
||
return;
|
||
}
|
||
|
||
/* create mark with right gravity */
|
||
mark = gtk_text_buffer_create_mark (buffer, NULL, iter, FALSE);
|
||
attr = pango_attr_list_get_iterator (attributes);
|
||
tags = gtk_text_buffer_get_tag_table (buffer);
|
||
|
||
do
|
||
{
|
||
GtkTextTag *tag;
|
||
int start, end;
|
||
|
||
pango_attr_iterator_range (attr, &start, &end);
|
||
|
||
if (end == G_MAXINT) /* last chunk */
|
||
end = start - 1; /* resulting in -1 to be passed to _insert */
|
||
|
||
tag = get_tag_for_attributes (attr);
|
||
gtk_text_tag_table_add (tags, tag);
|
||
|
||
gtk_text_buffer_insert_with_tags (buffer, iter, text + start, end - start, tag, NULL);
|
||
|
||
gtk_text_buffer_get_iter_at_mark (buffer, iter, mark);
|
||
|
||
g_object_unref (tag);
|
||
}
|
||
while (pango_attr_iterator_next (attr));
|
||
|
||
gtk_text_buffer_delete_mark (buffer, mark);
|
||
pango_attr_iterator_destroy (attr);
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_insert_markup:
|
||
* @buffer: a #GtkTextBuffer
|
||
* @iter: location to insert the markup
|
||
* @markup: a nul-terminated UTF-8 string containing [Pango markup][PangoMarkupFormat]
|
||
* @len: length of @markup in bytes, or -1
|
||
*
|
||
* Inserts the text in @markup at position @iter. @markup will be inserted
|
||
* in its entirety and must be nul-terminated and valid UTF-8. Emits the
|
||
* #GtkTextBuffer::insert-text signal, possibly multiple times; insertion
|
||
* actually occurs in the default handler for the signal. @iter will point
|
||
* to the end of the inserted text on return.
|
||
*/
|
||
void
|
||
gtk_text_buffer_insert_markup (GtkTextBuffer *buffer,
|
||
GtkTextIter *iter,
|
||
const char *markup,
|
||
int len)
|
||
{
|
||
PangoAttrList *attributes;
|
||
char *text;
|
||
GError *error = NULL;
|
||
|
||
if (!pango_parse_markup (markup, len, 0, &attributes, &text, NULL, &error))
|
||
{
|
||
g_warning ("Invalid markup string: %s", error->message);
|
||
g_error_free (error);
|
||
return;
|
||
}
|
||
|
||
gtk_text_buffer_insert_with_attributes (buffer, iter, text, attributes);
|
||
|
||
pango_attr_list_unref (attributes);
|
||
g_free (text);
|
||
}
|
||
|
||
static void
|
||
gtk_text_buffer_real_undo (GtkTextBuffer *buffer)
|
||
{
|
||
if (gtk_text_history_get_can_undo (buffer->priv->history))
|
||
gtk_text_history_undo (buffer->priv->history);
|
||
}
|
||
|
||
static void
|
||
gtk_text_buffer_real_redo (GtkTextBuffer *buffer)
|
||
{
|
||
if (gtk_text_history_get_can_redo (buffer->priv->history))
|
||
gtk_text_history_redo (buffer->priv->history);
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_get_can_undo:
|
||
* @buffer: a #GtkTextBuffer
|
||
*
|
||
* Gets whether there is an undoable action in the history.
|
||
*
|
||
* Returns: %TRUE if there is an undoable action
|
||
*/
|
||
gboolean
|
||
gtk_text_buffer_get_can_undo (GtkTextBuffer *buffer)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), FALSE);
|
||
|
||
return gtk_text_history_get_can_undo (buffer->priv->history);
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_get_can_redo:
|
||
* @buffer: a #GtkTextBuffer
|
||
*
|
||
* Gets whether there is a redoable action in the history.
|
||
*
|
||
* Returns: %TRUE if there is an redoable action
|
||
*/
|
||
gboolean
|
||
gtk_text_buffer_get_can_redo (GtkTextBuffer *buffer)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), FALSE);
|
||
|
||
return gtk_text_history_get_can_redo (buffer->priv->history);
|
||
}
|
||
|
||
static void
|
||
gtk_text_buffer_history_change_state (gpointer funcs_data,
|
||
gboolean is_modified,
|
||
gboolean can_undo,
|
||
gboolean can_redo)
|
||
{
|
||
GtkTextBuffer *buffer = funcs_data;
|
||
|
||
if (buffer->priv->can_undo != can_undo)
|
||
{
|
||
buffer->priv->can_undo = can_undo;
|
||
g_object_notify_by_pspec (G_OBJECT (buffer), text_buffer_props[PROP_CAN_UNDO]);
|
||
}
|
||
|
||
if (buffer->priv->can_redo != can_redo)
|
||
{
|
||
buffer->priv->can_redo = can_redo;
|
||
g_object_notify_by_pspec (G_OBJECT (buffer), text_buffer_props[PROP_CAN_REDO]);
|
||
}
|
||
|
||
if (buffer->priv->modified != is_modified)
|
||
gtk_text_buffer_set_modified (buffer, is_modified);
|
||
}
|
||
|
||
static void
|
||
gtk_text_buffer_history_insert (gpointer funcs_data,
|
||
guint begin,
|
||
guint end,
|
||
const char *text,
|
||
guint len)
|
||
{
|
||
GtkTextBuffer *buffer = funcs_data;
|
||
GtkTextIter iter;
|
||
|
||
gtk_text_buffer_get_iter_at_offset (buffer, &iter, begin);
|
||
gtk_text_buffer_insert (buffer, &iter, text, len);
|
||
}
|
||
|
||
static void
|
||
gtk_text_buffer_history_delete (gpointer funcs_data,
|
||
guint begin,
|
||
guint end,
|
||
const char *expected_text,
|
||
guint len)
|
||
{
|
||
GtkTextBuffer *buffer = funcs_data;
|
||
GtkTextIter iter;
|
||
GtkTextIter end_iter;
|
||
|
||
gtk_text_buffer_get_iter_at_offset (buffer, &iter, begin);
|
||
gtk_text_buffer_get_iter_at_offset (buffer, &end_iter, end);
|
||
gtk_text_buffer_delete (buffer, &iter, &end_iter);
|
||
}
|
||
|
||
static void
|
||
gtk_text_buffer_history_select (gpointer funcs_data,
|
||
int selection_insert,
|
||
int selection_bound)
|
||
{
|
||
GtkTextBuffer *buffer = funcs_data;
|
||
GtkTextIter insert;
|
||
GtkTextIter bound;
|
||
|
||
if (selection_insert == -1 || selection_bound == -1)
|
||
return;
|
||
|
||
gtk_text_buffer_get_iter_at_offset (buffer, &insert, selection_insert);
|
||
gtk_text_buffer_get_iter_at_offset (buffer, &bound, selection_bound);
|
||
gtk_text_buffer_select_range (buffer, &insert, &bound);
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_undo:
|
||
* @buffer: a #GtkTextBuffer
|
||
*
|
||
* Undoes the last undoable action on the buffer, if there is one.
|
||
*/
|
||
void
|
||
gtk_text_buffer_undo (GtkTextBuffer *buffer)
|
||
{
|
||
g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
|
||
|
||
if (gtk_text_buffer_get_can_undo (buffer))
|
||
g_signal_emit (buffer, signals[UNDO], 0);
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_redo:
|
||
* @buffer: a #GtkTextBuffer
|
||
*
|
||
* Redoes the next redoable action on the buffer, if there is one.
|
||
*/
|
||
void
|
||
gtk_text_buffer_redo (GtkTextBuffer *buffer)
|
||
{
|
||
g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
|
||
|
||
if (gtk_text_buffer_get_can_redo (buffer))
|
||
g_signal_emit (buffer, signals[REDO], 0);
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_get_enable_undo:
|
||
* @buffer: a #GtkTextBuffer
|
||
*
|
||
* Gets whether the buffer is saving modifications to the buffer to allow for
|
||
* undo and redo actions.
|
||
*
|
||
* See gtk_text_buffer_begin_irreversible_action() and
|
||
* gtk_text_buffer_end_irreversible_action() to create changes to the buffer
|
||
* that cannot be undone.
|
||
*/
|
||
gboolean
|
||
gtk_text_buffer_get_enable_undo (GtkTextBuffer *buffer)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), FALSE);
|
||
|
||
return gtk_text_history_get_enabled (buffer->priv->history);
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_set_enable_undo:
|
||
* @buffer: a #GtkTextBuffer
|
||
* @enable_undo: %TRUE to enable undo
|
||
*
|
||
* Sets whether or not to enable undoable actions in the text buffer. If
|
||
* enabled, the user will be able to undo the last number of actions up to
|
||
* gtk_text_buffer_get_max_undo_levels().
|
||
*
|
||
* See gtk_text_buffer_begin_irreversible_action() and
|
||
* gtk_text_buffer_end_irreversible_action() to create changes to the buffer
|
||
* that cannot be undone.
|
||
*/
|
||
void
|
||
gtk_text_buffer_set_enable_undo (GtkTextBuffer *buffer,
|
||
gboolean enable_undo)
|
||
{
|
||
g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
|
||
|
||
if (enable_undo != gtk_text_history_get_enabled (buffer->priv->history))
|
||
{
|
||
gtk_text_history_set_enabled (buffer->priv->history, enable_undo);
|
||
g_object_notify_by_pspec (G_OBJECT (buffer),
|
||
text_buffer_props[PROP_ENABLE_UNDO]);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_begin_irreversible_action:
|
||
* @buffer: a #GtkTextBuffer
|
||
*
|
||
* Denotes the beginning of an action that may not be undone. This will cause
|
||
* any previous operations in the undo/redo queue to be cleared.
|
||
*
|
||
* This should be paired with a call to
|
||
* gtk_text_buffer_end_irreversible_action() after the irreversible action
|
||
* has completed.
|
||
*
|
||
* You may nest calls to gtk_text_buffer_begin_irreversible_action() and
|
||
* gtk_text_buffer_end_irreversible_action() pairs.
|
||
*/
|
||
void
|
||
gtk_text_buffer_begin_irreversible_action (GtkTextBuffer *buffer)
|
||
{
|
||
g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
|
||
|
||
gtk_text_history_begin_irreversible_action (buffer->priv->history);
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_end_irreversible_action:
|
||
* @buffer: a #GtkTextBuffer
|
||
*
|
||
* Denotes the end of an action that may not be undone. This will cause
|
||
* any previous operations in the undo/redo queue to be cleared.
|
||
*
|
||
* This should be called after completing modifications to the text buffer
|
||
* after gtk_text_buffer_begin_irreversible_action() was called.
|
||
*
|
||
* You may nest calls to gtk_text_buffer_begin_irreversible_action() and
|
||
* gtk_text_buffer_end_irreversible_action() pairs.
|
||
*/
|
||
void
|
||
gtk_text_buffer_end_irreversible_action (GtkTextBuffer *buffer)
|
||
{
|
||
g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
|
||
|
||
gtk_text_history_end_irreversible_action (buffer->priv->history);
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_get_max_undo_levels:
|
||
* @buffer: a #GtkTextBuffer
|
||
*
|
||
* Gets the maximum number of undo levels to perform. If 0, unlimited undo
|
||
* actions may be performed. Note that this may have a memory usage impact
|
||
* as it requires storing an additional copy of the inserted or removed text
|
||
* within the text buffer.
|
||
*/
|
||
guint
|
||
gtk_text_buffer_get_max_undo_levels (GtkTextBuffer *buffer)
|
||
{
|
||
g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), 0);
|
||
|
||
return gtk_text_history_get_max_undo_levels (buffer->priv->history);
|
||
}
|
||
|
||
/**
|
||
* gtk_text_buffer_set_max_undo_levels:
|
||
* @buffer: a #GtkTextBuffer
|
||
* @max_undo_levels: the maximum number of undo actions to perform
|
||
*
|
||
* Sets the maximum number of undo levels to perform. If 0, unlimited undo
|
||
* actions may be performed. Note that this may have a memory usage impact
|
||
* as it requires storing an additional copy of the inserted or removed text
|
||
* within the text buffer.
|
||
*/
|
||
void
|
||
gtk_text_buffer_set_max_undo_levels (GtkTextBuffer *buffer,
|
||
guint max_undo_levels)
|
||
{
|
||
g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
|
||
|
||
gtk_text_history_set_max_undo_levels (buffer->priv->history, max_undo_levels);
|
||
}
|