mirror of https://github.com/GNOME/gimp.git
535 lines
15 KiB
C
535 lines
15 KiB
C
/* LIBGIMP - The GIMP Library
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* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
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*
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* gimpoldwidgets.c
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* Copyright (C) 2000 Michael Natterer <mitch@gimp.org>
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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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* Library 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, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include <string.h>
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#undef GTK_DISABLE_DEPRECATED
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#include <gtk/gtk.h>
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#include "gimpwidgetstypes.h"
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#undef GIMP_DISABLE_DEPRECATED
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#include "gimpoldwidgets.h"
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/*
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* Widget Constructors
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*/
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/**
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* gimp_option_menu_new:
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* @menu_only: %TRUE if the function should return a #GtkMenu only.
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* @...: A %NULL-terminated @va_list describing the menu items.
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*
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* Convenience function to create a #GtkOptionMenu or a #GtkMenu.
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*
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* Returns: A #GtkOptionMenu or a #GtkMenu (depending on @menu_only).
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**/
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GtkWidget *
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gimp_option_menu_new (gboolean menu_only,
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/* specify menu items as va_list:
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* const gchar *label,
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* GCallback callback,
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* gpointer callback_data,
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* gpointer item_data,
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* GtkWidget **widget_ptr,
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* gboolean active
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*/
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...)
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{
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GtkWidget *menu;
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GtkWidget *menuitem;
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/* menu item variables */
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const gchar *label;
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GCallback callback;
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gpointer callback_data;
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gpointer item_data;
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GtkWidget **widget_ptr;
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gboolean active;
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va_list args;
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gint i;
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gint initial_index;
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menu = gtk_menu_new ();
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/* create the menu items */
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initial_index = 0;
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va_start (args, menu_only);
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label = va_arg (args, const gchar *);
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for (i = 0; label; i++)
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{
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callback = va_arg (args, GCallback);
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callback_data = va_arg (args, gpointer);
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item_data = va_arg (args, gpointer);
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widget_ptr = va_arg (args, GtkWidget **);
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active = va_arg (args, gboolean);
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if (strcmp (label, "---"))
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{
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menuitem = gtk_menu_item_new_with_label (label);
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g_signal_connect (menuitem, "activate",
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callback,
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callback_data);
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if (item_data)
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{
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g_object_set_data (G_OBJECT (menuitem), "gimp-item-data",
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item_data);
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/* backward compat */
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g_object_set_data (G_OBJECT (menuitem), "user_data", item_data);
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}
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}
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else
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{
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menuitem = gtk_menu_item_new ();
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gtk_widget_set_sensitive (menuitem, FALSE);
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}
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gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem);
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if (widget_ptr)
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*widget_ptr = menuitem;
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gtk_widget_show (menuitem);
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/* remember the initial menu item */
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if (active)
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initial_index = i;
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label = va_arg (args, const gchar *);
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}
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va_end (args);
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if (! menu_only)
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{
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GtkWidget *optionmenu;
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optionmenu = gtk_option_menu_new ();
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gtk_option_menu_set_menu (GTK_OPTION_MENU (optionmenu), menu);
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/* select the initial menu item */
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gtk_option_menu_set_history (GTK_OPTION_MENU (optionmenu), initial_index);
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return optionmenu;
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}
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return menu;
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}
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/**
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* gimp_option_menu_new2:
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* @menu_only: %TRUE if the function should return a #GtkMenu only.
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* @menu_item_callback: The callback each menu item's "activate" signal will
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* be connected with.
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* @menu_item_callback_data:
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* The data which will be passed to g_signal_connect().
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* @initial: The @item_data of the initially selected menu item.
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* @...: A %NULL-terminated @va_list describing the menu items.
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*
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* Convenience function to create a #GtkOptionMenu or a #GtkMenu.
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*
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* Returns: A #GtkOptionMenu or a #GtkMenu (depending on @menu_only).
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**/
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GtkWidget *
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gimp_option_menu_new2 (gboolean menu_only,
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GCallback menu_item_callback,
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gpointer callback_data,
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gpointer initial, /* item_data */
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/* specify menu items as va_list:
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* const gchar *label,
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* gpointer item_data,
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* GtkWidget **widget_ptr,
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*/
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...)
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{
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GtkWidget *menu;
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GtkWidget *menuitem;
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/* menu item variables */
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const gchar *label;
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gpointer item_data;
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GtkWidget **widget_ptr;
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va_list args;
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gint i;
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gint initial_index;
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menu = gtk_menu_new ();
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/* create the menu items */
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initial_index = 0;
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va_start (args, initial);
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label = va_arg (args, const gchar *);
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for (i = 0; label; i++)
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{
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item_data = va_arg (args, gpointer);
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widget_ptr = va_arg (args, GtkWidget **);
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if (strcmp (label, "---"))
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{
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menuitem = gtk_menu_item_new_with_label (label);
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g_signal_connect (menuitem, "activate",
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menu_item_callback,
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callback_data);
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if (item_data)
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{
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g_object_set_data (G_OBJECT (menuitem), "gimp-item-data",
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item_data);
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/* backward compat */
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g_object_set_data (G_OBJECT (menuitem), "user_data", item_data);
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}
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}
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else
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{
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menuitem = gtk_menu_item_new ();
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gtk_widget_set_sensitive (menuitem, FALSE);
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}
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gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem);
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if (widget_ptr)
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*widget_ptr = menuitem;
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gtk_widget_show (menuitem);
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/* remember the initial menu item */
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if (item_data == initial)
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initial_index = i;
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label = va_arg (args, const gchar *);
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}
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va_end (args);
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if (! menu_only)
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{
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GtkWidget *optionmenu;
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optionmenu = gtk_option_menu_new ();
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gtk_option_menu_set_menu (GTK_OPTION_MENU (optionmenu), menu);
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/* select the initial menu item */
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gtk_option_menu_set_history (GTK_OPTION_MENU (optionmenu), initial_index);
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return optionmenu;
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}
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return menu;
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}
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/**
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* gimp_int_option_menu_new:
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* @menu_only: %TRUE if the function should return a #GtkMenu only.
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* @menu_item_callback: The callback each menu item's "activate" signal will
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* be connected with.
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* @menu_item_callback_data:
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* The data which will be passed to g_signal_connect().
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* @initial: The @item_data of the initially selected menu item.
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* @...: A %NULL-terminated @va_list describing the menu items.
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*
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* Convenience function to create a #GtkOptionMenu or a #GtkMenu. This
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* function does the same thing as the deprecated function
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* gimp_option_menu_new2(), but it takes integers as @item_data
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* instead of pointers, since that is a very common case (mapping an
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* enum to a menu).
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*
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* Returns: A #GtkOptionMenu or a #GtkMenu (depending on @menu_only).
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**/
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GtkWidget *
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gimp_int_option_menu_new (gboolean menu_only,
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GCallback menu_item_callback,
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gpointer callback_data,
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gint initial, /* item_data */
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/* specify menu items as va_list:
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* const gchar *label,
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* gint item_data,
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* GtkWidget **widget_ptr,
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*/
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...)
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{
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GtkWidget *menu;
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GtkWidget *menuitem;
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/* menu item variables */
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const gchar *label;
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gint item_data;
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gpointer item_ptr;
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GtkWidget **widget_ptr;
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va_list args;
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gint i;
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gint initial_index;
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menu = gtk_menu_new ();
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/* create the menu items */
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initial_index = 0;
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va_start (args, initial);
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label = va_arg (args, const gchar *);
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for (i = 0; label; i++)
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{
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item_data = va_arg (args, gint);
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widget_ptr = va_arg (args, GtkWidget **);
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item_ptr = GINT_TO_POINTER (item_data);
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if (strcmp (label, "---"))
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{
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menuitem = gtk_menu_item_new_with_label (label);
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g_signal_connect (menuitem, "activate",
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menu_item_callback,
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callback_data);
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if (item_data)
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{
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g_object_set_data (G_OBJECT (menuitem), "gimp-item-data",
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item_ptr);
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/* backward compat */
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g_object_set_data (G_OBJECT (menuitem), "user_data", item_ptr);
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}
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}
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else
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{
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menuitem = gtk_menu_item_new ();
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gtk_widget_set_sensitive (menuitem, FALSE);
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}
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gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem);
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if (widget_ptr)
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*widget_ptr = menuitem;
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gtk_widget_show (menuitem);
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/* remember the initial menu item */
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if (item_data == initial)
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initial_index = i;
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label = va_arg (args, const gchar *);
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}
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va_end (args);
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if (! menu_only)
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{
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GtkWidget *optionmenu;
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optionmenu = gtk_option_menu_new ();
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gtk_option_menu_set_menu (GTK_OPTION_MENU (optionmenu), menu);
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/* select the initial menu item */
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gtk_option_menu_set_history (GTK_OPTION_MENU (optionmenu), initial_index);
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return optionmenu;
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}
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return menu;
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}
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/**
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* gimp_option_menu_set_history:
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* @option_menu: A #GtkOptionMenu as returned by gimp_option_menu_new() or
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* gimp_option_menu_new2().
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* @item_data: The @item_data of the menu item you want to select.
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*
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* Iterates over all entries in a #GtkOptionMenu and selects the one
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* with the matching @item_data. Probably only makes sense to use with
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* a #GtkOptionMenu that was created using gimp_option_menu_new() or
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* gimp_option_menu_new2().
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**/
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void
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gimp_option_menu_set_history (GtkOptionMenu *option_menu,
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gpointer item_data)
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{
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GtkWidget *menu_item;
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GList *list;
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gint history = 0;
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g_return_if_fail (GTK_IS_OPTION_MENU (option_menu));
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for (list = GTK_MENU_SHELL (option_menu->menu)->children;
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list;
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list = g_list_next (list))
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{
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menu_item = GTK_WIDGET (list->data);
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if (GTK_IS_LABEL (GTK_BIN (menu_item)->child) &&
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g_object_get_data (G_OBJECT (menu_item),
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"gimp-item-data") == item_data)
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{
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break;
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}
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history++;
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}
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if (list)
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gtk_option_menu_set_history (option_menu, history);
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}
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/**
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* gimp_int_option_menu_set_history:
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* @option_menu: A #GtkOptionMenu as returned by gimp_int_option_menu_new().
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* @item_data: The @item_data of the menu item you want to select.
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*
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* Iterates over all entries in a #GtkOptionMenu and selects the one with the
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* matching @item_data. Probably only makes sense to use with a #GtkOptionMenu
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* that was created using gimp_int_option_menu_new(). This function does the
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* same thing as gimp_option_menu_set_history(), but takes integers as
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* @item_data instead of pointers.
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**/
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void
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gimp_int_option_menu_set_history (GtkOptionMenu *option_menu,
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gint item_data)
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{
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g_return_if_fail (GTK_IS_OPTION_MENU (option_menu));
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gimp_option_menu_set_history (option_menu, GINT_TO_POINTER (item_data));
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}
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/**
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* gimp_option_menu_set_sensitive:
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* @option_menu: a #GtkOptionMenu as returned by gimp_option_menu_new() or
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* gimp_option_menu_new2().
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* @callback: a function called for each item in the menu to determine the
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* the sensitivity state.
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* @callback_data: data to pass to the @callback function.
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*
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* Calls the given @callback for each item in the menu and passes it the
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* item_data and the @callback_data. The menu item's sensitivity is set
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* according to the return value of this function.
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**/
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void
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gimp_option_menu_set_sensitive (GtkOptionMenu *option_menu,
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GimpOptionMenuSensitivityCallback callback,
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gpointer callback_data)
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{
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GtkWidget *menu_item;
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GList *list;
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gpointer item_data;
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gboolean sensitive;
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g_return_if_fail (GTK_IS_OPTION_MENU (option_menu));
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g_return_if_fail (callback != NULL);
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for (list = GTK_MENU_SHELL (option_menu->menu)->children;
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list;
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list = g_list_next (list))
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{
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menu_item = GTK_WIDGET (list->data);
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if (GTK_IS_LABEL (GTK_BIN (menu_item)->child))
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{
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item_data = g_object_get_data (G_OBJECT (menu_item),
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"gimp-item-data");
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sensitive = callback (item_data, callback_data);
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gtk_widget_set_sensitive (menu_item, sensitive);
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}
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}
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}
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/**
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* gimp_int_option_menu_set_sensitive:
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* @option_menu: a #GtkOptionMenu as returned by gimp_option_menu_new() or
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* gimp_option_menu_new2().
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* @callback: a function called for each item in the menu to determine the
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* the sensitivity state.
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* @callback_data: data to pass to the @callback function.
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*
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* Calls the given @callback for each item in the menu and passes it the
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* item_data and the @callback_data. The menu item's sensitivity is set
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* according to the return value of this function. This function does the
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* same thing as gimp_option_menu_set_sensitive(), but takes integers as
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* @item_data instead of pointers.
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**/
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void
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gimp_int_option_menu_set_sensitive (GtkOptionMenu *option_menu,
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GimpIntOptionMenuSensitivityCallback callback,
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gpointer callback_data)
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{
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GtkWidget *menu_item;
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GList *list;
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gint item_data;
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gboolean sensitive;
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g_return_if_fail (GTK_IS_OPTION_MENU (option_menu));
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g_return_if_fail (callback != NULL);
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for (list = GTK_MENU_SHELL (option_menu->menu)->children;
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list;
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list = g_list_next (list))
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{
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menu_item = GTK_WIDGET (list->data);
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if (GTK_IS_LABEL (GTK_BIN (menu_item)->child))
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{
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item_data = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (menu_item),
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"gimp-item-data"));
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sensitive = callback (item_data, callback_data);
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gtk_widget_set_sensitive (menu_item, sensitive);
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}
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}
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}
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/**
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* gimp_menu_item_update:
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* @widget: A #GtkMenuItem.
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* @data: A pointer to a #gint variable which will store the value of
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* GPOINTER_TO_INT (g_object_get_data (@widget, "gimp-item-data")).
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**/
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void
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gimp_menu_item_update (GtkWidget *widget,
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gpointer data)
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{
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gint *item_val;
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item_val = (gint *) data;
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*item_val = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget),
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"gimp-item-data"));
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}
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