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gimp/libgimpwidgets/gimpoldwidgets.c

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