122 lines
		
	
	
		
			3.3 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			122 lines
		
	
	
		
			3.3 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /* GTK - The GIMP Toolkit
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|  * Copyright (C) 2012 Red Hat, Inc.
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|  *
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|  * Authors:
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|  * - Bastien Nocera <bnocera@redhat.com>
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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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| /*
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|  * Modified by the GTK+ Team and others 2012.  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 "gtksearchentry.h"
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| 
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| /**
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|  * SECTION:gtksearchentry
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|  * @Short_description: An entry which shows a search icon
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|  * @Title: GtkSearchEntry
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|  *
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|  * #GtkSearchEntry is a subclass of #GtkEntry that has
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|  * been tailored for use as a search entry.
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|  *
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|  * It will show an inactive symbolic "find" icon when the
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|  * search entry is empty, and a symbolic "clear" icon when
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|  * there is text. Clicking on the "clear" icon will empty
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|  * the search entry.
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|  *
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|  * Note that the search/clear icon is shown using a secondary
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|  * icon, and thus does not work if you are using the secondary
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|  * icon position for some other purpose.
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|  *
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|  * Since: 3.6
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|  */
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| 
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| G_DEFINE_TYPE (GtkSearchEntry, gtk_search_entry, GTK_TYPE_ENTRY)
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| 
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| static void
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| gtk_search_entry_class_init (GtkSearchEntryClass *klass)
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| {
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| }
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| 
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| static void
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| search_entry_clear_cb (GtkEntry *entry,
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|                        gpointer  user_data)
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| {
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|   gtk_entry_set_text (entry, "");
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| }
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| 
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| static void
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| search_entry_changed_cb (GtkEntry *entry,
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|                          gpointer  user_data)
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| {
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|   const char *str, *icon_name;
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|   gboolean active;
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| 
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|   str = gtk_entry_get_text (entry);
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| 
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|   if (str == NULL || *str == '\0')
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|     {
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|       icon_name = "edit-find-symbolic";
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|       active = FALSE;
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|     }
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|   else
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|     {
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|       if (gtk_widget_get_direction (GTK_WIDGET (entry)) == GTK_TEXT_DIR_RTL)
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|         icon_name = "edit-clear-rtl-symbolic";
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|       else
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|         icon_name = "edit-clear-symbolic";
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|       active = TRUE;
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|     }
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| 
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|   g_object_set (entry,
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|                 "secondary-icon-name", icon_name,
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|                 "secondary-icon-activatable", active,
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|                 "secondary-icon-sensitive", active,
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|                 NULL);
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| }
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| 
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| static void
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| gtk_search_entry_init (GtkSearchEntry *entry)
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| {
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|   g_signal_connect (entry, "changed",
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|                     G_CALLBACK (search_entry_changed_cb), NULL);
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|   g_signal_connect (entry, "icon-release",
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|                     G_CALLBACK (search_entry_clear_cb), NULL);
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| 
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|   search_entry_changed_cb (GTK_ENTRY (entry), NULL);
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| }
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| 
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| /**
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|  * gtk_search_entry_new:
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|  *
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|  * Creates a #GtkSearchEntry, with a find icon when the search field is
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|  * empty, and a clear icon when it isn't.
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|  *
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|  * Return value: a new #GtkSearchEntry
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|  *
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|  * Since: 3.6
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|  */
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| GtkWidget *
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| gtk_search_entry_new (void)
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| {
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|   return GTK_WIDGET (g_object_new (GTK_TYPE_SEARCH_ENTRY, NULL));
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| }
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