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gimp/app/widgets/gimpenummenu.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpenummenu.c
* Copyright (C) 2002 Sven Neumann <sven@gimp.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <gtk/gtk.h>
#include "libgimpwidgets/gimpwidgets.h"
#include "widgets-types.h"
#include "gimpenummenu.h"
#include "gimp-intl.h"
static void gimp_enum_menu_class_init (GimpEnumMenuClass *klass);
static void gimp_enum_menu_init (GimpEnumMenu *enum_menu);
static void gimp_enum_menu_finalize (GObject *object);
static GtkMenuClass *parent_class = NULL;
GType
gimp_enum_menu_get_type (void)
{
static GType enum_menu_type = 0;
if (!enum_menu_type)
{
static const GTypeInfo enum_menu_info =
{
sizeof (GimpEnumMenuClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) gimp_enum_menu_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GimpEnumMenu),
0, /* n_preallocs */
(GInstanceInitFunc) gimp_enum_menu_init,
};
enum_menu_type = g_type_register_static (GTK_TYPE_MENU,
"GimpEnumMenu",
&enum_menu_info, 0);
}
return enum_menu_type;
}
static void
gimp_enum_menu_class_init (GimpEnumMenuClass *klass)
{
GObjectClass *object_class;
parent_class = g_type_class_peek_parent (klass);
object_class = G_OBJECT_CLASS (klass);
object_class->finalize = gimp_enum_menu_finalize;
}
static void
gimp_enum_menu_init (GimpEnumMenu *enum_menu)
{
enum_menu->enum_class = NULL;
}
static void
gimp_enum_menu_finalize (GObject *object)
{
GimpEnumMenu *enum_menu = GIMP_ENUM_MENU (object);
if (enum_menu->enum_class)
g_type_class_unref (enum_menu->enum_class);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
/**
* gimp_enum_menu_new:
* @enum_type: the #GType of an enum.
* @callback: a callback to connect to the "activate" signal of each
* #GtkMenuItem that is created.
* @callback_data: data to pass to the @callback.
*
* Creates a new #GimpEnumMenu, derived from #GtkMenu with menu items
* for each of the enum values. The enum needs to be registered to the
* type system and should have translatable value names.
*
* To each menu item it's enum value is attached as "gimp-item-data".
* Therefore you can use gimp_menu_item_update() from libgimpwidgets
* as @callback function.
*
* Return value: a new #GimpEnumMenu.
**/
GtkWidget *
gimp_enum_menu_new (GType enum_type,
GCallback callback,
gpointer callback_data)
{
GEnumClass *enum_class;
GtkWidget *menu;
g_return_val_if_fail (G_TYPE_IS_ENUM (enum_type), NULL);
enum_class = g_type_class_ref (enum_type);
menu = gimp_enum_menu_new_with_range (enum_type,
enum_class->minimum,
enum_class->maximum,
callback, callback_data);
g_type_class_unref (enum_class);
return menu;
}
GtkWidget *
gimp_enum_menu_new_with_range (GType enum_type,
gint minimum,
gint maximum,
GCallback callback,
gpointer callback_data)
{
GimpEnumMenu *menu;
GtkWidget *menu_item;
GEnumValue *value;
g_return_val_if_fail (G_TYPE_IS_ENUM (enum_type), NULL);
menu = g_object_new (GIMP_TYPE_ENUM_MENU, NULL);
menu->enum_class = g_type_class_ref (enum_type);
for (value = menu->enum_class->values; value->value_name; value++)
{
if (value->value < minimum || value->value > maximum)
continue;
menu_item = gtk_image_menu_item_new_with_mnemonic (gettext (value->value_name));
gtk_menu_shell_append (GTK_MENU_SHELL (menu), menu_item);
gtk_widget_show (menu_item);
g_object_set_data (G_OBJECT (menu_item), "gimp-item-data",
GINT_TO_POINTER (value->value));
if (callback)
g_signal_connect (menu_item, "activate",
callback,
callback_data);
}
return GTK_WIDGET (menu);
}
GtkWidget *
gimp_enum_menu_new_with_values (GType enum_type,
GCallback callback,
gpointer callback_data,
gint n_values,
...)
{
GtkWidget *menu;
va_list args;
va_start (args, n_values);
menu = gimp_enum_menu_new_with_values_valist (enum_type,
callback,
callback_data,
n_values,
args);
va_end (args);
return menu;
}
GtkWidget *
gimp_enum_menu_new_with_values_valist (GType enum_type,
GCallback callback,
gpointer callback_data,
gint n_values,
va_list args)
{
GimpEnumMenu *menu;
GtkWidget *menu_item;
GEnumValue *value;
gint i;
g_return_val_if_fail (G_TYPE_IS_ENUM (enum_type), NULL);
g_return_val_if_fail (n_values > 1, NULL);
menu = g_object_new (GIMP_TYPE_ENUM_MENU, NULL);
menu->enum_class = g_type_class_ref (enum_type);
for (i = 0; i < n_values; i++)
{
value = g_enum_get_value (menu->enum_class, va_arg (args, gint));
if (value)
{
menu_item =
gtk_image_menu_item_new_with_mnemonic (gettext (value->value_name));
gtk_menu_shell_append (GTK_MENU_SHELL (menu), menu_item);
gtk_widget_show (menu_item);
g_object_set_data (G_OBJECT (menu_item), "gimp-item-data",
GINT_TO_POINTER (value->value));
if (callback)
g_signal_connect (menu_item, "activate",
callback,
callback_data);
}
}
return GTK_WIDGET (menu);
}
/**
* gimp_enum_menu_set_stock_prefix:
* @enum_menu: a #GimpEnumMenu
* @stock_prefix: the prefix of the group of stock ids to use.
*
* Adds stock icons to the items in @enum_menu. The stock_id for each
* icon is created by appending the enum_value's nick to the given
* @stock_prefix. If no such stock_id exists, no icon is displayed.
**/
void
gimp_enum_menu_set_stock_prefix (GimpEnumMenu *enum_menu,
const gchar *stock_prefix)
{
GtkWidget *image;
GEnumValue *enum_value;
GList *list;
gchar *stock_id;
gint value;
g_return_if_fail (GIMP_IS_ENUM_MENU (enum_menu));
g_return_if_fail (stock_prefix != NULL);
for (list = GTK_MENU_SHELL (enum_menu)->children; list; list = list->next)
{
GtkImageMenuItem *item = list->data;
value = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (item),
"gimp-item-data"));
enum_value = g_enum_get_value (enum_menu->enum_class, value);
if (!enum_value)
continue;
stock_id = g_strconcat (stock_prefix, "-", enum_value->value_nick, NULL);
image = gtk_image_new_from_stock (stock_id, GTK_ICON_SIZE_MENU);
g_free (stock_id);
gtk_image_menu_item_set_image (item, image);
gtk_widget_show (image);
}
}
/**
* gimp_enum_option_menu_new:
* @enum_type: the #GType of an enum.
* @callback: a callback to connect to the "activate" signal of each
* #GtkMenuItem that is created.
* @callback_data: data to pass to the @callback.
*
* This function calls gimp_enum_menu_new() for you and attaches
* the resulting @GtkMenu to a newly created #GtkOptionMenu.
*
* Return value: a new #GtkOptionMenu.
**/
GtkWidget *
gimp_enum_option_menu_new (GType enum_type,
GCallback callback,
gpointer callback_data)
{
GtkWidget *option_menu;
GtkWidget *menu;
g_return_val_if_fail (G_TYPE_IS_ENUM (enum_type), NULL);
menu = gimp_enum_menu_new (enum_type, callback, callback_data);
option_menu = gtk_option_menu_new ();
gtk_option_menu_set_menu (GTK_OPTION_MENU (option_menu), menu);
return option_menu;
}
GtkWidget *
gimp_enum_option_menu_new_with_range (GType enum_type,
gint minimum,
gint maximum,
GCallback callback,
gpointer callback_data)
{
GtkWidget *option_menu;
GtkWidget *menu;
g_return_val_if_fail (G_TYPE_IS_ENUM (enum_type), NULL);
menu = gimp_enum_menu_new_with_range (enum_type,
minimum, maximum,
callback, callback_data);
option_menu = gtk_option_menu_new ();
gtk_option_menu_set_menu (GTK_OPTION_MENU (option_menu), menu);
return option_menu;
}
GtkWidget *
gimp_enum_option_menu_new_with_values (GType enum_type,
GCallback callback,
gpointer callback_data,
gint n_values,
...)
{
GtkWidget *option_menu;
va_list args;
va_start (args, n_values);
option_menu = gimp_enum_option_menu_new_with_values_valist (enum_type,
callback,
callback_data,
n_values, args);
va_end (args);
return option_menu;
}
GtkWidget *
gimp_enum_option_menu_new_with_values_valist (GType enum_type,
GCallback callback,
gpointer callback_data,
gint n_values,
va_list args)
{
GtkWidget *option_menu = NULL;
GtkWidget *menu;
menu = gimp_enum_menu_new_with_values_valist (enum_type,
callback, callback_data,
n_values, args);
if (menu)
{
option_menu = gtk_option_menu_new ();
gtk_option_menu_set_menu (GTK_OPTION_MENU (option_menu), menu);
}
return option_menu;
}
/**
* gimp_enum_option_menu_set_stock_prefix:
* @option_menu: a #GtkOptionMenu created using gtk_enum_option_menu_new().
* @stock_prefix: the prefix of the group of stock ids to use.
*
* A convenience function that calls gimp_enum_menu_set_stock_prefix()
* with the enum menu used by @option_menu.
**/
void
gimp_enum_option_menu_set_stock_prefix (GtkOptionMenu *option_menu,
const gchar *stock_prefix)
{
GtkWidget *enum_menu;
g_return_if_fail (GTK_IS_OPTION_MENU (option_menu));
g_return_if_fail (stock_prefix != NULL);
enum_menu = gtk_option_menu_get_menu (option_menu);
if (enum_menu && GIMP_IS_ENUM_MENU (enum_menu))
gimp_enum_menu_set_stock_prefix (GIMP_ENUM_MENU (enum_menu), stock_prefix);
}
/**
* gimp_enum_radio_box_new:
* @enum_type: the #GType of an enum.
* @callback: a callback to connect to the "toggled" signal of each
* #GtkRadioButton that is created.
* @callback_data: data to pass to the @callback.
* @first_button: returns the first button in the created group.
*
* Creates a new group of #GtkRadioButtons representing the enum values.
* This is very similar to gimp_enum_menu_new().
*
* Return value: a new #GtkVBox holding a group of #GtkRadioButtons.
**/
GtkWidget *
gimp_enum_radio_box_new (GType enum_type,
GCallback callback,
gpointer callback_data,
GtkWidget **first_button)
{
GEnumClass *enum_class;
GtkWidget *vbox;
g_return_val_if_fail (G_TYPE_IS_ENUM (enum_type), NULL);
enum_class = g_type_class_ref (enum_type);
vbox = gimp_enum_radio_box_new_with_range (enum_type,
enum_class->minimum,
enum_class->maximum,
callback, callback_data,
first_button);
g_type_class_unref (enum_class);
return vbox;
}
GtkWidget *
gimp_enum_radio_box_new_with_range (GType enum_type,
gint minimum,
gint maximum,
GCallback callback,
gpointer callback_data,
GtkWidget **first_button)
{
GtkWidget *vbox;
GtkWidget *button;
GEnumClass *enum_class;
GEnumValue *value;
GSList *group = NULL;
g_return_val_if_fail (G_TYPE_IS_ENUM (enum_type), NULL);
enum_class = g_type_class_ref (enum_type);
vbox = gtk_vbox_new (FALSE, 1);
g_object_weak_ref (G_OBJECT (vbox),
(GWeakNotify) g_type_class_unref, enum_class);
if (first_button)
*first_button = NULL;
for (value = enum_class->values; value->value_name; value++)
{
if (value->value < minimum || value->value > maximum)
continue;
button = gtk_radio_button_new_with_mnemonic (group,
gettext (value->value_name));
if (first_button && *first_button == NULL)
*first_button = button;
group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (button));
gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
g_object_set_data (G_OBJECT (button), "gimp-item-data",
GINT_TO_POINTER (value->value));
if (callback)
g_signal_connect (button, "toggled",
callback,
callback_data);
}
return vbox;
}
/**
* gimp_enum_radio_frame_new:
* @enum_type: the #GType of an enum.
* @label_widget: a widget to put into the frame that will hold the radio box.
* @border_width: the border_width of the vbox inside the frame.
* @callback: a callback to connect to the "toggled" signal of each
* #GtkRadioButton that is created.
* @callback_data: data to pass to the @callback.
* @first_button: returns the first button in the created group.
*
* Calls gimp_enum_radio_box_new() and puts the resulting vbox into a
* #GtkFrame.
*
* Return value: a new #GtkFrame holding a group of #GtkRadioButtons.
**/
GtkWidget *
gimp_enum_radio_frame_new (GType enum_type,
GtkWidget *label_widget,
gint border_width,
GCallback callback,
gpointer callback_data,
GtkWidget **first_button)
{
GtkWidget *frame;
GtkWidget *radio_box;
g_return_val_if_fail (G_TYPE_IS_ENUM (enum_type), NULL);
g_return_val_if_fail (label_widget == NULL || GTK_IS_WIDGET (label_widget),
NULL);
frame = gtk_frame_new (NULL);
if (label_widget)
{
gtk_frame_set_label_widget (GTK_FRAME (frame), label_widget);
gtk_widget_show (label_widget);
}
radio_box = gimp_enum_radio_box_new (enum_type,
callback, callback_data,
first_button);
gtk_container_set_border_width (GTK_CONTAINER (radio_box), border_width);
gtk_container_add (GTK_CONTAINER (frame), radio_box);
gtk_widget_show (radio_box);
return frame;
}
GtkWidget *
gimp_enum_radio_frame_new_with_range (GType enum_type,
gint minimum,
gint maximum,
GtkWidget *label_widget,
gint border_width,
GCallback callback,
gpointer callback_data,
GtkWidget **first_button)
{
GtkWidget *frame;
GtkWidget *radio_box;
g_return_val_if_fail (G_TYPE_IS_ENUM (enum_type), NULL);
g_return_val_if_fail (label_widget == NULL || GTK_IS_WIDGET (label_widget),
NULL);
frame = gtk_frame_new (NULL);
if (label_widget)
{
gtk_frame_set_label_widget (GTK_FRAME (frame), label_widget);
gtk_widget_show (label_widget);
}
radio_box = gimp_enum_radio_box_new_with_range (enum_type,
minimum,
maximum,
callback, callback_data,
first_button);
gtk_container_set_border_width (GTK_CONTAINER (radio_box), border_width);
gtk_container_add (GTK_CONTAINER (frame), radio_box);
gtk_widget_show (radio_box);
return frame;
}
/**
* gimp_enum_stock_box_new:
* @enum_type: the #GType of an enum.
* @stock_prefix: the prefix of the group of stock ids to use.
* @icon_size:
* @callback: a callback to connect to the "toggled" signal of each
* #GtkRadioButton that is created.
* @callback_data: data to pass to the @callback.
* @first_button: returns the first button in the created group.
*
* Creates a horizontal box of radio buttons with stock icons. The
* stock_id for each icon is created by appending the enum_value's
* nick to the given @stock_prefix.
*
* Return value: a new #GtkHbox holding a group of #GtkRadioButtons.
**/
GtkWidget *
gimp_enum_stock_box_new (GType enum_type,
const gchar *stock_prefix,
GtkIconSize icon_size,
GCallback callback,
gpointer callback_data,
GtkWidget **first_button)
{
GEnumClass *enum_class;
GtkWidget *box;
g_return_val_if_fail (G_TYPE_IS_ENUM (enum_type), NULL);
enum_class = g_type_class_ref (enum_type);
box = gimp_enum_stock_box_new_with_range (enum_type,
enum_class->minimum,
enum_class->maximum,
stock_prefix, icon_size,
callback, callback_data,
first_button);
g_type_class_unref (enum_class);
return box;
}
GtkWidget *
gimp_enum_stock_box_new_with_range (GType enum_type,
gint minimum,
gint maximum,
const gchar *stock_prefix,
GtkIconSize icon_size,
GCallback callback,
gpointer callback_data,
GtkWidget **first_button)
{
GtkWidget *hbox;
GtkWidget *button;
GtkWidget *image;
GEnumClass *enum_class;
GEnumValue *value;
gchar *stock_id;
GSList *group = NULL;
g_return_val_if_fail (G_TYPE_IS_ENUM (enum_type), NULL);
g_return_val_if_fail (stock_prefix != NULL, NULL);
enum_class = g_type_class_ref (enum_type);
hbox = gtk_hbox_new (FALSE, 2);
g_object_weak_ref (G_OBJECT (hbox),
(GWeakNotify) g_type_class_unref, enum_class);
if (first_button)
*first_button = NULL;
for (value = enum_class->values; value->value_name; value++)
{
if (value->value < minimum || value->value > maximum)
continue;
button = gtk_radio_button_new (group);
gtk_toggle_button_set_mode (GTK_TOGGLE_BUTTON (button), FALSE);
if (first_button && *first_button == NULL)
*first_button = button;
stock_id = g_strconcat (stock_prefix, "-", value->value_nick, NULL);
image = gtk_image_new_from_stock (stock_id, icon_size);
g_free (stock_id);
if (image)
{
gtk_container_add (GTK_CONTAINER (button), image);
gtk_widget_show (image);
}
if (value->value_name)
gimp_help_set_help_data (button, gettext (value->value_name), NULL);
group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (button));
gtk_box_pack_start (GTK_BOX (hbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
g_object_set_data (G_OBJECT (button), "gimp-item-data",
GINT_TO_POINTER (value->value));
if (callback)
g_signal_connect (button, "toggled",
callback,
callback_data);
}
return hbox;
}
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