gtk2/gtk/gtktextutil.c

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/* GTK - The GIMP Toolkit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-2001. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include "gtktextutil.h"
#include "gtkintl.h"
#include "gtkmenuitem.h"
typedef struct _GtkUnicodeMenuEntry GtkUnicodeMenuEntry;
typedef struct _GtkTextUtilCallbackInfo GtkTextUtilCallbackInfo;
struct _GtkUnicodeMenuEntry {
const char *label;
gunichar ch;
};
struct _GtkTextUtilCallbackInfo
{
GtkTextUtilCharChosenFunc func;
gpointer data;
};
GtkUnicodeMenuEntry bidi_menu_entries[] = {
{ N_("LRM _Left-to-right mark"), 0x200E },
{ N_("RLM _Right-to-left mark"), 0x200F },
{ N_("LRE Left-to-right _embedding"), 0x202A },
{ N_("RLE Right-to-left e_mbedding"), 0x202B },
{ N_("LRO Left-to-right _override"), 0x202D },
{ N_("RLO Right-to-left o_verride"), 0x202E },
{ N_("PDF _Pop directional formatting"), 0x202C },
{ N_("ZWS _Zero width space"), 0x200B },
{ N_("ZWN Zero width _joiner"), 0x200D },
{ N_("ZWNJ Zero width _non-joiner"), 0x200C }
};
static void
activate_cb (GtkWidget *menu_item,
gpointer data)
{
GtkUnicodeMenuEntry *entry;
GtkTextUtilCallbackInfo *info = data;
char buf[7];
entry = g_object_get_data (G_OBJECT (menu_item), "gtk-unicode-menu-entry");
buf[g_unichar_to_utf8 (entry->ch, buf)] = '\0';
(* info->func) (buf, info->data);
}
/**
* _gtk_text_util_append_special_char_menuitems
* @menushell: a #GtkMenuShell
* @callback: call this when an item is chosen
* @data: data for callback
*
* Add menuitems for various bidi control characters to a menu;
* the menuitems, when selected, will call the given function
* with the chosen character.
*
* This function is private/internal in GTK 2.0, the functionality may
* become public sometime, but it probably needs more thought first.
* e.g. maybe there should be a way to just get the list of items,
* instead of requiring the menu items to be created.
**/
void
_gtk_text_util_append_special_char_menuitems (GtkMenuShell *menushell,
GtkTextUtilCharChosenFunc func,
gpointer data)
{
int i;
for (i = 0; i < G_N_ELEMENTS (bidi_menu_entries); i++)
{
GtkWidget *menuitem;
GtkTextUtilCallbackInfo *info;
/* wasteful to have a bunch of copies, but simplifies mem management */
info = g_new (GtkTextUtilCallbackInfo, 1);
info->func = func;
info->data = data;
menuitem = gtk_menu_item_new_with_mnemonic (bidi_menu_entries[i].label);
g_object_set_data (G_OBJECT (menuitem), "gtk-unicode-menu-entry",
&bidi_menu_entries[i]);
g_signal_connect_data (G_OBJECT (menuitem), "activate",
G_CALLBACK (activate_cb),
info, (GClosureNotify) g_free, 0);
gtk_widget_show (menuitem);
gtk_menu_shell_append (menushell, menuitem);
}
}