919 lines
		
	
	
		
			28 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			919 lines
		
	
	
		
			28 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /* 
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|  * GTK - The GIMP Toolkit
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|  * Copyright (C) 1998 David Abilleira Freijeiro <odaf@nexo.es>
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|  * All rights reserved.
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|  *
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|  * Based on gnome-color-picker by Federico Mena <federico@nuclecu.unam.mx>
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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 Library 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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|  * Library General Public License for more details.
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|  *
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|  * You should have received a copy of the GNU Library General Public
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|  * License along with this library; if not, write to the Free Software
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|  * Foundation, Inc., 59 Temple Place - Suite 330, Cambridge, MA 02139, USA.
 | |
|  */
 | |
| /*
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|  * Modified by the GTK+ Team and others 2003.  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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| 
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| #include "config.h"
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| 
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| #include "gtkfontbutton.h"
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| 
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| #include "gtkmain.h"
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| #include "gtkhbox.h"
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| #include "gtklabel.h"
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| #include "gtkfontchooserdialog.h"
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| #include "gtkimage.h"
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| #include "gtkmarshalers.h"
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| #include "gtkseparator.h"
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| #include "gtkprivate.h"
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| #include "gtkintl.h"
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| 
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| #include <string.h>
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| #include <stdio.h>
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| 
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| 
 | |
| /**
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|  * SECTION:gtkfontbutton
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|  * @Short_description: A button to launch a font chooser dialog
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|  * @Title: GtkFontButton
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|  * @See_also: #GtkFontChooserDialog, #GtkColorButton.
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|  *
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|  * The #GtkFontButton is a button which displays the currently selected
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|  * font an allows to open a font chooser dialog to change the font.
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|  * It is suitable widget for selecting a font in a preference dialog.
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|  */
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| 
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| 
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| struct _GtkFontButtonPrivate 
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| {
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|   gchar         *title;
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|   
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|   gchar         *fontname;
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|   
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|   guint         use_font : 1;
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|   guint         use_size : 1;
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|   guint         show_style : 1;
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|   guint         show_size : 1;
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|    
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|   GtkWidget     *font_dialog;
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|   GtkWidget     *inside;
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|   GtkWidget     *font_label;
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|   GtkWidget     *size_label;
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| };
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| 
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| /* Signals */
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| enum 
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| {
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|   FONT_SET,
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|   LAST_SIGNAL
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| };
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| 
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| enum 
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| {
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|   PROP_0,
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|   PROP_TITLE,
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|   PROP_FONT_NAME,
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|   PROP_USE_FONT,
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|   PROP_USE_SIZE,
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|   PROP_SHOW_STYLE,
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|   PROP_SHOW_SIZE
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| };
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| 
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| /* Prototypes */
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| static void gtk_font_button_finalize               (GObject            *object);
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| static void gtk_font_button_get_property           (GObject            *object,
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|                                                     guint               param_id,
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|                                                     GValue             *value,
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|                                                     GParamSpec         *pspec);
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| static void gtk_font_button_set_property           (GObject            *object,
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|                                                     guint               param_id,
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|                                                     const GValue       *value,
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|                                                     GParamSpec         *pspec);
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| 
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| static void gtk_font_button_clicked                 (GtkButton         *button);
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| 
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| /* Dialog response functions */
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| static void response_cb                             (GtkDialog         *dialog,
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|                                                      gint               response_id,
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|                                                      gpointer           data);
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| static void dialog_destroy                          (GtkWidget         *widget,
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|                                                      gpointer           data);
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| 
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| /* Auxiliary functions */
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| static GtkWidget *gtk_font_button_create_inside     (GtkFontButton     *gfs);
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| static void gtk_font_button_label_use_font          (GtkFontButton     *gfs);
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| static void gtk_font_button_update_font_info        (GtkFontButton     *gfs);
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| 
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| static guint font_button_signals[LAST_SIGNAL] = { 0 };
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| 
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| G_DEFINE_TYPE (GtkFontButton, gtk_font_button, GTK_TYPE_BUTTON)
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| 
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| static void
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| gtk_font_button_class_init (GtkFontButtonClass *klass)
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| {
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|   GObjectClass *gobject_class;
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|   GtkButtonClass *button_class;
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|   
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|   gobject_class = (GObjectClass *) klass;
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|   button_class = (GtkButtonClass *) klass;
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| 
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|   gobject_class->finalize = gtk_font_button_finalize;
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|   gobject_class->set_property = gtk_font_button_set_property;
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|   gobject_class->get_property = gtk_font_button_get_property;
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|   
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|   button_class->clicked = gtk_font_button_clicked;
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|   
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|   klass->font_set = NULL;
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| 
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|   /**
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|    * GtkFontButton:title:
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|    * 
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|    * The title of the font chooser dialog.
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|    *
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|    * Since: 2.4
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|    */
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|   g_object_class_install_property (gobject_class,
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|                                    PROP_TITLE,
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|                                    g_param_spec_string ("title",
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|                                                         P_("Title"),
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|                                                         P_("The title of the font chooser dialog"),
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|                                                         _("Pick a Font"),
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|                                                         (GTK_PARAM_READABLE |
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|                                                          GTK_PARAM_WRITABLE)));
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| 
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|   /**
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|    * GtkFontButton:font-name:
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|    * 
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|    * The name of the currently selected font.
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|    *
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|    * Since: 2.4
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|    */
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|   g_object_class_install_property (gobject_class,
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|                                    PROP_FONT_NAME,
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|                                    g_param_spec_string ("font-name",
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|                                                         P_("Font name"),
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|                                                         P_("The name of the selected font"),
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|                                                         P_("Sans 12"),
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|                                                         (GTK_PARAM_READABLE |
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|                                                          GTK_PARAM_WRITABLE)));
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| 
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|   /**
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|    * GtkFontButton:use-font:
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|    * 
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|    * If this property is set to %TRUE, the label will be drawn 
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|    * in the selected font.
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|    *
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|    * Since: 2.4
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|    */
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|   g_object_class_install_property (gobject_class,
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|                                    PROP_USE_FONT,
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|                                    g_param_spec_boolean ("use-font",
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|                                                          P_("Use font in label"),
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|                                                          P_("Whether the label is drawn in the selected font"),
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|                                                          FALSE,
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|                                                          GTK_PARAM_READWRITE));
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| 
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|   /**
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|    * GtkFontButton:use-size:
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|    * 
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|    * If this property is set to %TRUE, the label will be drawn 
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|    * with the selected font size.
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|    *
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|    * Since: 2.4
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|    */
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|   g_object_class_install_property (gobject_class,
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|                                    PROP_USE_SIZE,
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|                                    g_param_spec_boolean ("use-size",
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|                                                          P_("Use size in label"),
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|                                                          P_("Whether the label is drawn with the selected font size"),
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|                                                          FALSE,
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|                                                          GTK_PARAM_READWRITE));
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| 
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|   /**
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|    * GtkFontButton:show-style:
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|    * 
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|    * If this property is set to %TRUE, the name of the selected font style 
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|    * will be shown in the label. For a more WYSIWYG way to show the selected 
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|    * style, see the ::use-font property. 
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|    *
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|    * Since: 2.4
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|    */
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|   g_object_class_install_property (gobject_class,
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|                                    PROP_SHOW_STYLE,
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|                                    g_param_spec_boolean ("show-style",
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|                                                          P_("Show style"),
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|                                                          P_("Whether the selected font style is shown in the label"),
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|                                                          TRUE,
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|                                                          GTK_PARAM_READWRITE));
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|   /**
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|    * GtkFontButton:show-size:
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|    * 
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|    * If this property is set to %TRUE, the selected font size will be shown 
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|    * in the label. For a more WYSIWYG way to show the selected size, see the 
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|    * ::use-size property. 
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|    *
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|    * Since: 2.4
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|    */
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|   g_object_class_install_property (gobject_class,
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|                                    PROP_SHOW_SIZE,
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|                                    g_param_spec_boolean ("show-size",
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|                                                          P_("Show size"),
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|                                                          P_("Whether selected font size is shown in the label"),
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|                                                          TRUE,
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|                                                          GTK_PARAM_READWRITE));
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| 
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|   /**
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|    * GtkFontButton::font-set:
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|    * @widget: the object which received the signal.
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|    * 
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|    * The ::font-set signal is emitted when the user selects a font. 
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|    * When handling this signal, use gtk_font_button_get_font_name() 
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|    * to find out which font was just selected.
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|    *
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|    * Note that this signal is only emitted when the <emphasis>user</emphasis>
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|    * changes the font. If you need to react to programmatic font changes
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|    * as well, use the notify::font-name signal.
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|    *
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|    * Since: 2.4
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|    */
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|   font_button_signals[FONT_SET] = g_signal_new (I_("font-set"),
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|                                                 G_TYPE_FROM_CLASS (gobject_class),
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|                                                 G_SIGNAL_RUN_FIRST,
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|                                                 G_STRUCT_OFFSET (GtkFontButtonClass, font_set),
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|                                                 NULL, NULL,
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|                                                 g_cclosure_marshal_VOID__VOID,
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|                                                 G_TYPE_NONE, 0);
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|   
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|   g_type_class_add_private (gobject_class, sizeof (GtkFontButtonPrivate));
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| }
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| 
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| static void
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| gtk_font_button_init (GtkFontButton *font_button)
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| {
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|   font_button->priv = G_TYPE_INSTANCE_GET_PRIVATE (font_button,
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|                                                    GTK_TYPE_FONT_BUTTON,
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|                                                    GtkFontButtonPrivate);
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| 
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|   /* Initialize fields */
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|   font_button->priv->fontname = g_strdup (_("Sans 12"));
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|   font_button->priv->use_font = FALSE;
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|   font_button->priv->use_size = FALSE;
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|   font_button->priv->show_style = TRUE;
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|   font_button->priv->show_size = TRUE;
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|   font_button->priv->font_dialog = NULL;
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|   font_button->priv->title = g_strdup (_("Pick a Font"));
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| 
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|   font_button->priv->inside = gtk_font_button_create_inside (font_button);
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|   gtk_container_add (GTK_CONTAINER (font_button), font_button->priv->inside);
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| 
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|   gtk_font_button_update_font_info (font_button);  
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| }
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| 
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| 
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| static void
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| gtk_font_button_finalize (GObject *object)
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| {
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|   GtkFontButton *font_button = GTK_FONT_BUTTON (object);
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| 
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|   if (font_button->priv->font_dialog != NULL) 
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|     gtk_widget_destroy (font_button->priv->font_dialog);
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|   font_button->priv->font_dialog = NULL;
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| 
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|   g_free (font_button->priv->fontname);
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|   font_button->priv->fontname = NULL;
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|   
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|   g_free (font_button->priv->title);
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|   font_button->priv->title = NULL;
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|   
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|   G_OBJECT_CLASS (gtk_font_button_parent_class)->finalize (object);
 | |
| }
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| 
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| static void
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| gtk_font_button_set_property (GObject      *object,
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|                               guint         param_id,
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|                               const GValue *value,
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|                               GParamSpec   *pspec)
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| {
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|   GtkFontButton *font_button = GTK_FONT_BUTTON (object);
 | |
|   
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|   switch (param_id) 
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|     {
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|     case PROP_TITLE:
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|       gtk_font_button_set_title (font_button, g_value_get_string (value));
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|       break;
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|     case PROP_FONT_NAME:
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|       gtk_font_button_set_font_name (font_button, g_value_get_string (value));
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|       break;
 | |
|     case PROP_USE_FONT:
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|       gtk_font_button_set_use_font (font_button, g_value_get_boolean (value));
 | |
|       break;
 | |
|     case PROP_USE_SIZE:
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|       gtk_font_button_set_use_size (font_button, g_value_get_boolean (value));
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|       break;
 | |
|     case PROP_SHOW_STYLE:
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|       gtk_font_button_set_show_style (font_button, g_value_get_boolean (value));
 | |
|       break;
 | |
|     case PROP_SHOW_SIZE:
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|       gtk_font_button_set_show_size (font_button, g_value_get_boolean (value));
 | |
|       break;
 | |
|     default:
 | |
|       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 | |
|       break;
 | |
|   }
 | |
| }
 | |
| 
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| static void
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| gtk_font_button_get_property (GObject    *object,
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|                               guint       param_id,
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|                               GValue     *value,
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|                               GParamSpec *pspec)
 | |
| {
 | |
|   GtkFontButton *font_button = GTK_FONT_BUTTON (object);
 | |
|   
 | |
|   switch (param_id) 
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|     {
 | |
|     case PROP_TITLE:
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|       g_value_set_string (value, gtk_font_button_get_title (font_button));
 | |
|       break;
 | |
|     case PROP_FONT_NAME:
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|       g_value_set_string (value, gtk_font_button_get_font_name (font_button));
 | |
|       break;
 | |
|     case PROP_USE_FONT:
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|       g_value_set_boolean (value, gtk_font_button_get_use_font (font_button));
 | |
|       break;
 | |
|     case PROP_USE_SIZE:
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|       g_value_set_boolean (value, gtk_font_button_get_use_size (font_button));
 | |
|       break;
 | |
|     case PROP_SHOW_STYLE:
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|       g_value_set_boolean (value, gtk_font_button_get_show_style (font_button));
 | |
|       break;
 | |
|     case PROP_SHOW_SIZE:
 | |
|       g_value_set_boolean (value, gtk_font_button_get_show_size (font_button));
 | |
|       break;
 | |
|     default:
 | |
|       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 | |
|       break;
 | |
|     }
 | |
| } 
 | |
| 
 | |
| 
 | |
| /**
 | |
|  * gtk_font_button_new:
 | |
|  *
 | |
|  * Creates a new font picker widget.
 | |
|  *
 | |
|  * Returns: a new font picker widget.
 | |
|  *
 | |
|  * Since: 2.4
 | |
|  */
 | |
| GtkWidget *
 | |
| gtk_font_button_new (void)
 | |
| {
 | |
|   return g_object_new (GTK_TYPE_FONT_BUTTON, NULL);
 | |
| } 
 | |
| 
 | |
| /**
 | |
|  * gtk_font_button_new_with_font:
 | |
|  * @fontname: Name of font to display in font chooser dialog
 | |
|  *
 | |
|  * Creates a new font picker widget.
 | |
|  *
 | |
|  * Returns: a new font picker widget.
 | |
|  *
 | |
|  * Since: 2.4
 | |
|  */
 | |
| GtkWidget *
 | |
| gtk_font_button_new_with_font (const gchar *fontname)
 | |
| {
 | |
|   return g_object_new (GTK_TYPE_FONT_BUTTON, "font-name", fontname, NULL);
 | |
| } 
 | |
| 
 | |
| /**
 | |
|  * gtk_font_button_set_title:
 | |
|  * @font_button: a #GtkFontButton
 | |
|  * @title: a string containing the font chooser dialog title
 | |
|  *
 | |
|  * Sets the title for the font chooser dialog.  
 | |
|  *
 | |
|  * Since: 2.4
 | |
|  */
 | |
| void
 | |
| gtk_font_button_set_title (GtkFontButton *font_button, 
 | |
|                            const gchar   *title)
 | |
| {
 | |
|   gchar *old_title;
 | |
|   g_return_if_fail (GTK_IS_FONT_BUTTON (font_button));
 | |
|   
 | |
|   old_title = font_button->priv->title;
 | |
|   font_button->priv->title = g_strdup (title);
 | |
|   g_free (old_title);
 | |
|   
 | |
|   if (font_button->priv->font_dialog)
 | |
|     gtk_window_set_title (GTK_WINDOW (font_button->priv->font_dialog),
 | |
|                           font_button->priv->title);
 | |
| 
 | |
|   g_object_notify (G_OBJECT (font_button), "title");
 | |
| } 
 | |
| 
 | |
| /**
 | |
|  * gtk_font_button_get_title:
 | |
|  * @font_button: a #GtkFontButton
 | |
|  *
 | |
|  * Retrieves the title of the font chooser dialog.
 | |
|  *
 | |
|  * Returns: an internal copy of the title string which must not be freed.
 | |
|  *
 | |
|  * Since: 2.4
 | |
|  */
 | |
| const gchar*
 | |
| gtk_font_button_get_title (GtkFontButton *font_button)
 | |
| {
 | |
|   g_return_val_if_fail (GTK_IS_FONT_BUTTON (font_button), NULL);
 | |
| 
 | |
|   return font_button->priv->title;
 | |
| } 
 | |
| 
 | |
| /**
 | |
|  * gtk_font_button_get_use_font:
 | |
|  * @font_button: a #GtkFontButton
 | |
|  *
 | |
|  * Returns whether the selected font is used in the label.
 | |
|  *
 | |
|  * Returns: whether the selected font is used in the label.
 | |
|  *
 | |
|  * Since: 2.4
 | |
|  */
 | |
| gboolean
 | |
| gtk_font_button_get_use_font (GtkFontButton *font_button)
 | |
| {
 | |
|   g_return_val_if_fail (GTK_IS_FONT_BUTTON (font_button), FALSE);
 | |
| 
 | |
|   return font_button->priv->use_font;
 | |
| } 
 | |
| 
 | |
| /**
 | |
|  * gtk_font_button_set_use_font:
 | |
|  * @font_button: a #GtkFontButton
 | |
|  * @use_font: If %TRUE, font name will be written using font chosen.
 | |
|  *
 | |
|  * If @use_font is %TRUE, the font name will be written using the selected font.  
 | |
|  *
 | |
|  * Since: 2.4
 | |
|  */
 | |
| void  
 | |
| gtk_font_button_set_use_font (GtkFontButton *font_button,
 | |
| 			      gboolean       use_font)
 | |
| {
 | |
|   g_return_if_fail (GTK_IS_FONT_BUTTON (font_button));
 | |
|   
 | |
|   use_font = (use_font != FALSE);
 | |
|   
 | |
|   if (font_button->priv->use_font != use_font) 
 | |
|     {
 | |
|       font_button->priv->use_font = use_font;
 | |
| 
 | |
|       if (use_font)
 | |
|         gtk_font_button_label_use_font (font_button);
 | |
|       else
 | |
| 	gtk_widget_set_style (font_button->priv->font_label, NULL);
 | |
|  
 | |
|      g_object_notify (G_OBJECT (font_button), "use-font");
 | |
|     }
 | |
| } 
 | |
| 
 | |
| 
 | |
| /**
 | |
|  * gtk_font_button_get_use_size:
 | |
|  * @font_button: a #GtkFontButton
 | |
|  *
 | |
|  * Returns whether the selected size is used in the label.
 | |
|  *
 | |
|  * Returns: whether the selected size is used in the label.
 | |
|  *
 | |
|  * Since: 2.4
 | |
|  */
 | |
| gboolean
 | |
| gtk_font_button_get_use_size (GtkFontButton *font_button)
 | |
| {
 | |
|   g_return_val_if_fail (GTK_IS_FONT_BUTTON (font_button), FALSE);
 | |
| 
 | |
|   return font_button->priv->use_size;
 | |
| } 
 | |
| 
 | |
| /**
 | |
|  * gtk_font_button_set_use_size:
 | |
|  * @font_button: a #GtkFontButton
 | |
|  * @use_size: If %TRUE, font name will be written using the selected size.
 | |
|  *
 | |
|  * If @use_size is %TRUE, the font name will be written using the selected size.
 | |
|  *
 | |
|  * Since: 2.4
 | |
|  */
 | |
| void  
 | |
| gtk_font_button_set_use_size (GtkFontButton *font_button,
 | |
|                               gboolean       use_size)
 | |
| {
 | |
|   g_return_if_fail (GTK_IS_FONT_BUTTON (font_button));
 | |
|   
 | |
|   use_size = (use_size != FALSE);
 | |
|   if (font_button->priv->use_size != use_size) 
 | |
|     {
 | |
|       font_button->priv->use_size = use_size;
 | |
| 
 | |
|       if (font_button->priv->use_font)
 | |
|         gtk_font_button_label_use_font (font_button);
 | |
| 
 | |
|       g_object_notify (G_OBJECT (font_button), "use-size");
 | |
|     }
 | |
| } 
 | |
| 
 | |
| /**
 | |
|  * gtk_font_button_get_show_style:
 | |
|  * @font_button: a #GtkFontButton
 | |
|  * 
 | |
|  * Returns whether the name of the font style will be shown in the label.
 | |
|  * 
 | |
|  * Return value: whether the font style will be shown in the label.
 | |
|  *
 | |
|  * Since: 2.4
 | |
|  **/
 | |
| gboolean 
 | |
| gtk_font_button_get_show_style (GtkFontButton *font_button)
 | |
| {
 | |
|   g_return_val_if_fail (GTK_IS_FONT_BUTTON (font_button), FALSE);
 | |
| 
 | |
|   return font_button->priv->show_style;
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * gtk_font_button_set_show_style:
 | |
|  * @font_button: a #GtkFontButton
 | |
|  * @show_style: %TRUE if font style should be displayed in label.
 | |
|  *
 | |
|  * If @show_style is %TRUE, the font style will be displayed along with name of the selected font.
 | |
|  *
 | |
|  * Since: 2.4
 | |
|  */
 | |
| void
 | |
| gtk_font_button_set_show_style (GtkFontButton *font_button,
 | |
|                                 gboolean       show_style)
 | |
| {
 | |
|   g_return_if_fail (GTK_IS_FONT_BUTTON (font_button));
 | |
|   
 | |
|   show_style = (show_style != FALSE);
 | |
|   if (font_button->priv->show_style != show_style) 
 | |
|     {
 | |
|       font_button->priv->show_style = show_style;
 | |
|       
 | |
|       gtk_font_button_update_font_info (font_button);
 | |
|   
 | |
|       g_object_notify (G_OBJECT (font_button), "show-style");
 | |
|     }
 | |
| } 
 | |
| 
 | |
| 
 | |
| /**
 | |
|  * gtk_font_button_get_show_size:
 | |
|  * @font_button: a #GtkFontButton
 | |
|  * 
 | |
|  * Returns whether the font size will be shown in the label.
 | |
|  * 
 | |
|  * Return value: whether the font size will be shown in the label.
 | |
|  *
 | |
|  * Since: 2.4
 | |
|  **/
 | |
| gboolean 
 | |
| gtk_font_button_get_show_size (GtkFontButton *font_button)
 | |
| {
 | |
|   g_return_val_if_fail (GTK_IS_FONT_BUTTON (font_button), FALSE);
 | |
| 
 | |
|   return font_button->priv->show_size;
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * gtk_font_button_set_show_size:
 | |
|  * @font_button: a #GtkFontButton
 | |
|  * @show_size: %TRUE if font size should be displayed in dialog.
 | |
|  *
 | |
|  * If @show_size is %TRUE, the font size will be displayed along with the name of the selected font.
 | |
|  *
 | |
|  * Since: 2.4
 | |
|  */
 | |
| void
 | |
| gtk_font_button_set_show_size (GtkFontButton *font_button,
 | |
|                                gboolean       show_size)
 | |
| {
 | |
|   g_return_if_fail (GTK_IS_FONT_BUTTON (font_button));
 | |
|   
 | |
|   show_size = (show_size != FALSE);
 | |
| 
 | |
|   if (font_button->priv->show_size != show_size) 
 | |
|     {
 | |
|       font_button->priv->show_size = show_size;
 | |
| 
 | |
|       gtk_container_remove (GTK_CONTAINER (font_button), font_button->priv->inside);
 | |
|       font_button->priv->inside = gtk_font_button_create_inside (font_button);
 | |
|       gtk_container_add (GTK_CONTAINER (font_button), font_button->priv->inside);
 | |
|       
 | |
|       gtk_font_button_update_font_info (font_button);
 | |
| 
 | |
|       g_object_notify (G_OBJECT (font_button), "show-size");
 | |
|     }
 | |
| } 
 | |
| 
 | |
| 
 | |
| /**
 | |
|  * gtk_font_button_get_font_name:
 | |
|  * @font_button: a #GtkFontButton
 | |
|  *
 | |
|  * Retrieves the name of the currently selected font. This name includes
 | |
|  * style and size information as well. If you want to render something
 | |
|  * with the font, use this string with pango_font_description_from_string() .
 | |
|  * If you're interested in peeking certain values (family name,
 | |
|  * style, size, weight) just query these properties from the
 | |
|  * #PangoFontDescription object.
 | |
|  *
 | |
|  * Returns: an internal copy of the font name which must not be freed.
 | |
|  *
 | |
|  * Since: 2.4
 | |
|  */
 | |
| const gchar *
 | |
| gtk_font_button_get_font_name (GtkFontButton *font_button)
 | |
| {
 | |
|   g_return_val_if_fail (GTK_IS_FONT_BUTTON (font_button), NULL);
 | |
|   
 | |
|   return font_button->priv->fontname;
 | |
| }
 | |
| 
 | |
| /**
 | |
|  * gtk_font_button_set_font_name:
 | |
|  * @font_button: a #GtkFontButton
 | |
|  * @fontname: Name of font to display in font chooser dialog
 | |
|  *
 | |
|  * Sets or updates the currently-displayed font in font picker dialog.
 | |
|  *
 | |
|  * Returns: Return value of gtk_font_chooser_dialog_set_font_name() if the
 | |
|  * font chooser dialog exists, otherwise %FALSE.
 | |
|  *
 | |
|  * Since: 2.4
 | |
|  */
 | |
| gboolean 
 | |
| gtk_font_button_set_font_name (GtkFontButton *font_button,
 | |
|                                const gchar    *fontname)
 | |
| {
 | |
|   gboolean result;
 | |
|   gchar *old_fontname;
 | |
| 
 | |
|   g_return_val_if_fail (GTK_IS_FONT_BUTTON (font_button), FALSE);
 | |
|   g_return_val_if_fail (fontname != NULL, FALSE);
 | |
|   
 | |
|   if (g_ascii_strcasecmp (font_button->priv->fontname, fontname)) 
 | |
|     {
 | |
|       old_fontname = font_button->priv->fontname;
 | |
|       font_button->priv->fontname = g_strdup (fontname);
 | |
|       g_free (old_fontname);
 | |
|     }
 | |
|   
 | |
|   gtk_font_button_update_font_info (font_button);
 | |
|   
 | |
|   if (font_button->priv->font_dialog)
 | |
|     result = gtk_font_chooser_dialog_set_font_name (GTK_FONT_CHOOSER_DIALOG (font_button->priv->font_dialog), 
 | |
|                                                     font_button->priv->fontname);
 | |
|   else
 | |
|     result = FALSE;
 | |
| 
 | |
|   g_object_notify (G_OBJECT (font_button), "font-name");
 | |
| 
 | |
|   return result;
 | |
| }
 | |
| 
 | |
| static void
 | |
| gtk_font_button_clicked (GtkButton *button)
 | |
| {
 | |
|   GtkFontChooserDialog *font_dialog;
 | |
|   GtkFontButton        *font_button = GTK_FONT_BUTTON (button);
 | |
|   
 | |
|   if (!font_button->priv->font_dialog) 
 | |
|     {
 | |
|       GtkWidget *parent;
 | |
|       
 | |
|       parent = gtk_widget_get_toplevel (GTK_WIDGET (font_button));
 | |
|       
 | |
|       font_button->priv->font_dialog = gtk_font_chooser_dialog_new (font_button->priv->title,
 | |
|                                                                     NULL);
 | |
|       
 | |
|       font_dialog = GTK_FONT_CHOOSER_DIALOG (font_button->priv->font_dialog);
 | |
|       
 | |
|       if (gtk_widget_is_toplevel (parent) && GTK_IS_WINDOW (parent))
 | |
|         {
 | |
|           if (GTK_WINDOW (parent) != gtk_window_get_transient_for (GTK_WINDOW (font_dialog)))
 | |
|             gtk_window_set_transient_for (GTK_WINDOW (font_dialog), GTK_WINDOW (parent));
 | |
| 
 | |
|           gtk_window_set_modal (GTK_WINDOW (font_dialog),
 | |
|                                 gtk_window_get_modal (GTK_WINDOW (parent)));
 | |
|         }
 | |
| 
 | |
|       g_signal_connect (font_dialog, "response",
 | |
|                         G_CALLBACK (response_cb), font_button);
 | |
| 
 | |
|       g_signal_connect (font_dialog, "destroy",
 | |
|                         G_CALLBACK (dialog_destroy), font_button);
 | |
|     }
 | |
|   
 | |
|   if (!gtk_widget_get_visible (font_button->priv->font_dialog))
 | |
|     {
 | |
|       font_dialog = GTK_FONT_CHOOSER_DIALOG (font_button->priv->font_dialog);
 | |
|       gtk_font_chooser_dialog_set_font_name (font_dialog, font_button->priv->fontname);
 | |
|     } 
 | |
| 
 | |
|   gtk_window_present (GTK_WINDOW (font_button->priv->font_dialog));
 | |
| }
 | |
| 
 | |
| 
 | |
| static void
 | |
| response_cb (GtkDialog *dialog,
 | |
|              gint       response_id,
 | |
|              gpointer   data)
 | |
| {
 | |
|   GtkFontButton *font_button = GTK_FONT_BUTTON (data);
 | |
|   gtk_widget_hide (font_button->priv->font_dialog);
 | |
| 
 | |
|   if (response_id != GTK_RESPONSE_OK)
 | |
|     return;
 | |
| 
 | |
|   g_free (font_button->priv->fontname);
 | |
|   font_button->priv->fontname = gtk_font_chooser_dialog_get_font_name (GTK_FONT_CHOOSER_DIALOG (font_button->priv->font_dialog));
 | |
|   
 | |
|   /* Set label font */
 | |
|   gtk_font_button_update_font_info (font_button);
 | |
| 
 | |
|   g_object_notify (G_OBJECT (font_button), "font-name");
 | |
|   
 | |
|   /* Emit font_set signal */
 | |
|   g_signal_emit (font_button, font_button_signals[FONT_SET], 0);
 | |
| }
 | |
| 
 | |
| static void
 | |
| dialog_destroy (GtkWidget *widget,
 | |
|                 gpointer   data)
 | |
| {
 | |
|   GtkFontButton *font_button = GTK_FONT_BUTTON (data);
 | |
|     
 | |
|   /* Dialog will get destroyed so reference is not valid now */
 | |
|   font_button->priv->font_dialog = NULL;
 | |
| } 
 | |
| 
 | |
| static GtkWidget *
 | |
| gtk_font_button_create_inside (GtkFontButton *font_button)
 | |
| {
 | |
|   GtkWidget *widget;
 | |
|   
 | |
|   gtk_widget_push_composite_child ();
 | |
| 
 | |
|   widget = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
 | |
| 
 | |
|   font_button->priv->font_label = gtk_label_new (_("Font"));
 | |
|   
 | |
|   gtk_label_set_justify (GTK_LABEL (font_button->priv->font_label), GTK_JUSTIFY_LEFT);
 | |
|   gtk_box_pack_start (GTK_BOX (widget), font_button->priv->font_label, TRUE, TRUE, 5);
 | |
| 
 | |
|   if (font_button->priv->show_size) 
 | |
|     {
 | |
|       gtk_box_pack_start (GTK_BOX (widget), gtk_separator_new (GTK_ORIENTATION_VERTICAL), FALSE, FALSE, 0);
 | |
|       font_button->priv->size_label = gtk_label_new ("14");
 | |
|       gtk_box_pack_start (GTK_BOX (widget), font_button->priv->size_label, FALSE, FALSE, 5);
 | |
|     }
 | |
| 
 | |
|   gtk_widget_show_all (widget);
 | |
| 
 | |
|   gtk_widget_pop_composite_child ();
 | |
| 
 | |
|   return widget;
 | |
| } 
 | |
| 
 | |
| static void
 | |
| gtk_font_button_label_use_font (GtkFontButton *font_button)
 | |
| {
 | |
|   PangoFontDescription *desc;
 | |
| 
 | |
|   if (!font_button->priv->use_font)
 | |
|     return;
 | |
| 
 | |
|   desc = pango_font_description_from_string (font_button->priv->fontname);
 | |
|   
 | |
|   if (!font_button->priv->use_size)
 | |
|     pango_font_description_unset_fields (desc, PANGO_FONT_MASK_SIZE);
 | |
| 
 | |
|   gtk_widget_modify_font (font_button->priv->font_label, desc);
 | |
| 
 | |
|   pango_font_description_free (desc);
 | |
| }
 | |
| 
 | |
| static gboolean
 | |
| font_description_style_equal (const PangoFontDescription *a,
 | |
|                               const PangoFontDescription *b)
 | |
| {
 | |
|   return (pango_font_description_get_weight (a) == pango_font_description_get_weight (b) &&
 | |
|           pango_font_description_get_style (a) == pango_font_description_get_style (b) &&
 | |
|           pango_font_description_get_stretch (a) == pango_font_description_get_stretch (b) &&
 | |
|           pango_font_description_get_variant (a) == pango_font_description_get_variant (b));
 | |
| }
 | |
| 
 | |
| static void
 | |
| gtk_font_button_update_font_info (GtkFontButton *font_button)
 | |
| {
 | |
|   PangoFontDescription *desc;
 | |
|   const gchar *family;
 | |
|   gchar *style;
 | |
|   gchar *family_style;
 | |
|   
 | |
|   desc = pango_font_description_from_string (font_button->priv->fontname);
 | |
|   family = pango_font_description_get_family (desc);
 | |
|   
 | |
| #if 0
 | |
|   /* This gives the wrong names, e.g. Italic when the font chooser
 | |
|    * dialog displayed Oblique.
 | |
|    */
 | |
|   pango_font_description_unset_fields (desc, PANGO_FONT_MASK_FAMILY | PANGO_FONT_MASK_SIZE);
 | |
|   style = pango_font_description_to_string (desc);
 | |
|   gtk_label_set_text (GTK_LABEL (font_button->priv->style_label), style);      
 | |
| #endif
 | |
| 
 | |
|   style = NULL;
 | |
|   if (font_button->priv->show_style && family) 
 | |
|     {
 | |
|       PangoFontFamily **families;
 | |
|       PangoFontFace **faces;
 | |
|       gint n_families, n_faces, i;
 | |
| 
 | |
|       n_families = 0;
 | |
|       families = NULL;
 | |
|       pango_context_list_families (gtk_widget_get_pango_context (GTK_WIDGET (font_button)),
 | |
|                                    &families, &n_families);
 | |
|       n_faces = 0;
 | |
|       faces = NULL;
 | |
|       for (i = 0; i < n_families; i++) 
 | |
|         {
 | |
|           const gchar *name = pango_font_family_get_name (families[i]);
 | |
|           
 | |
|           if (!g_ascii_strcasecmp (name, family)) 
 | |
|             {
 | |
|               pango_font_family_list_faces (families[i], &faces, &n_faces);
 | |
|               break;
 | |
|             }
 | |
|         }
 | |
|       g_free (families);
 | |
|       
 | |
|       for (i = 0; i < n_faces; i++) 
 | |
|         {
 | |
|           PangoFontDescription *tmp_desc = pango_font_face_describe (faces[i]);
 | |
|           
 | |
|           if (font_description_style_equal (tmp_desc, desc)) 
 | |
|             {
 | |
|               style = g_strdup (pango_font_face_get_face_name (faces[i]));
 | |
|               pango_font_description_free (tmp_desc);
 | |
|               break;
 | |
|             }
 | |
|           else
 | |
|             pango_font_description_free (tmp_desc);
 | |
|         }
 | |
|       g_free (faces);
 | |
|     }
 | |
| 
 | |
|   if (style == NULL || !g_ascii_strcasecmp (style, "Regular"))
 | |
|     family_style = g_strdup (family);
 | |
|   else
 | |
|     family_style = g_strdup_printf ("%s %s", family, style);
 | |
|   
 | |
|   gtk_label_set_text (GTK_LABEL (font_button->priv->font_label), family_style);
 | |
|   
 | |
|   g_free (style);
 | |
|   g_free (family_style);
 | |
| 
 | |
|   if (font_button->priv->show_size) 
 | |
|     {
 | |
|       gchar *size = g_strdup_printf ("%g",
 | |
|                                      pango_font_description_get_size (desc) / (double)PANGO_SCALE);
 | |
|       
 | |
|       gtk_label_set_text (GTK_LABEL (font_button->priv->size_label), size);
 | |
|       
 | |
|       g_free (size);
 | |
|     }
 | |
| 
 | |
|   gtk_font_button_label_use_font (font_button);
 | |
|   
 | |
|   pango_font_description_free (desc);
 | |
| } 
 | 
