1 /* GTK - The GIMP Toolkit
2 * Copyright (C) 2001 Red Hat, Inc.
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
21 * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
22 * file for a list of people on the GTK+ Team. See the ChangeLog
23 * files for a list of changes. These files are distributed with
24 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
28 #include "gtkimagemenuitem.h"
29 #include "gtkaccellabel.h"
32 #include "gtkiconfactory.h"
35 typedef struct _GtkImageMenuItemPrivate GtkImageMenuItemPrivate;
37 struct _GtkImageMenuItemPrivate
39 GtkSettings *settings;
40 guint show_image_connection;
43 #define GTK_IMAGE_MENU_ITEM_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GTK_TYPE_IMAGE_MENU_ITEM, GtkImageMenuItemPrivate))
45 static void gtk_image_menu_item_class_init (GtkImageMenuItemClass *klass);
46 static void gtk_image_menu_item_init (GtkImageMenuItem *image_menu_item);
47 static void gtk_image_menu_item_size_request (GtkWidget *widget,
48 GtkRequisition *requisition);
49 static void gtk_image_menu_item_size_allocate (GtkWidget *widget,
50 GtkAllocation *allocation);
51 static void gtk_image_menu_item_remove (GtkContainer *container,
53 static void gtk_image_menu_item_toggle_size_request (GtkMenuItem *menu_item,
56 static void gtk_image_menu_item_forall (GtkContainer *container,
57 gboolean include_internals,
59 gpointer callback_data);
61 static void gtk_image_menu_item_set_property (GObject *object,
65 static void gtk_image_menu_item_get_property (GObject *object,
69 static void gtk_image_menu_item_screen_changed (GtkWidget *widget,
70 GdkScreen *previous_screen);
78 static GtkMenuItemClass *parent_class = NULL;
81 gtk_image_menu_item_get_type (void)
83 static GType image_menu_item_type = 0;
85 if (!image_menu_item_type)
87 static const GTypeInfo image_menu_item_info =
89 sizeof (GtkImageMenuItemClass),
91 NULL, /* base_finalize */
92 (GClassInitFunc) gtk_image_menu_item_class_init,
93 NULL, /* class_finalize */
94 NULL, /* class_data */
95 sizeof (GtkImageMenuItem),
97 (GInstanceInitFunc) gtk_image_menu_item_init,
100 image_menu_item_type =
101 g_type_register_static (GTK_TYPE_MENU_ITEM, "GtkImageMenuItem",
102 &image_menu_item_info, 0);
105 return image_menu_item_type;
109 gtk_image_menu_item_class_init (GtkImageMenuItemClass *klass)
111 GObjectClass *gobject_class;
112 GtkWidgetClass *widget_class;
113 GtkMenuItemClass *menu_item_class;
114 GtkContainerClass *container_class;
116 gobject_class = (GObjectClass*) klass;
117 widget_class = (GtkWidgetClass*) klass;
118 menu_item_class = (GtkMenuItemClass*) klass;
119 container_class = (GtkContainerClass*) klass;
121 parent_class = g_type_class_peek_parent (klass);
123 widget_class->screen_changed = gtk_image_menu_item_screen_changed;
124 widget_class->size_request = gtk_image_menu_item_size_request;
125 widget_class->size_allocate = gtk_image_menu_item_size_allocate;
127 container_class->forall = gtk_image_menu_item_forall;
128 container_class->remove = gtk_image_menu_item_remove;
130 menu_item_class->toggle_size_request = gtk_image_menu_item_toggle_size_request;
132 gobject_class->set_property = gtk_image_menu_item_set_property;
133 gobject_class->get_property = gtk_image_menu_item_get_property;
135 g_object_class_install_property (gobject_class,
137 g_param_spec_object ("image",
139 P_("Child widget to appear next to the menu text"),
141 G_PARAM_READABLE | G_PARAM_WRITABLE));
143 gtk_settings_install_property (g_param_spec_boolean ("gtk-menu-images",
144 P_("Show menu images"),
145 P_("Whether images should be shown in menus"),
149 g_type_class_add_private (gobject_class, sizeof (GtkImageMenuItemPrivate));
153 gtk_image_menu_item_init (GtkImageMenuItem *image_menu_item)
155 image_menu_item->image = NULL;
159 gtk_image_menu_item_set_property (GObject *object,
164 GtkImageMenuItem *image_menu_item = GTK_IMAGE_MENU_ITEM (object);
172 image = (GtkWidget*) g_value_get_object (value);
174 gtk_image_menu_item_set_image (image_menu_item, image);
178 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
183 gtk_image_menu_item_get_property (GObject *object,
188 GtkImageMenuItem *image_menu_item = GTK_IMAGE_MENU_ITEM (object);
193 g_value_set_object (value,
194 (GObject*) image_menu_item->image);
197 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
203 show_image (GtkImageMenuItem *image_menu_item)
205 GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (image_menu_item));
208 g_object_get (settings, "gtk-menu-images", &show, NULL);
214 gtk_image_menu_item_toggle_size_request (GtkMenuItem *menu_item,
217 GtkImageMenuItem *image_menu_item = GTK_IMAGE_MENU_ITEM (menu_item);
221 if (image_menu_item->image && show_image (image_menu_item))
223 guint image_width = image_menu_item->image->requisition.width;
227 guint toggle_spacing;
228 gtk_widget_style_get (GTK_WIDGET (menu_item),
229 "toggle_spacing", &toggle_spacing,
232 *requisition = image_width + toggle_spacing;
239 gtk_image_menu_item_size_request (GtkWidget *widget,
240 GtkRequisition *requisition)
242 GtkImageMenuItem *image_menu_item;
243 gint child_height = 0;
245 image_menu_item = GTK_IMAGE_MENU_ITEM (widget);
247 if (image_menu_item->image &&
248 GTK_WIDGET_VISIBLE (image_menu_item->image) &&
249 show_image (image_menu_item))
251 GtkRequisition child_requisition;
253 gtk_widget_size_request (image_menu_item->image,
256 child_height = child_requisition.height;
259 (* GTK_WIDGET_CLASS (parent_class)->size_request) (widget, requisition);
261 /* not done with height since that happens via the
262 * toggle_size_request
264 requisition->height = MAX (requisition->height, child_height);
266 /* Note that GtkMenuShell always size requests before
267 * toggle_size_request, so toggle_size_request will be able to use
268 * image_menu_item->image->requisition
273 gtk_image_menu_item_size_allocate (GtkWidget *widget,
274 GtkAllocation *allocation)
276 GtkImageMenuItem *image_menu_item;
278 image_menu_item = GTK_IMAGE_MENU_ITEM (widget);
280 (* GTK_WIDGET_CLASS (parent_class)->size_allocate) (widget, allocation);
282 if (image_menu_item->image && show_image (image_menu_item))
284 gint width, height, x, y, offset;
285 GtkAllocation child_allocation;
286 guint horizontal_padding, toggle_spacing;
288 gtk_widget_style_get (widget,
289 "horizontal_padding", &horizontal_padding,
290 "toggle_spacing", &toggle_spacing,
293 /* Man this is lame hardcoding action, but I can't
294 * come up with a solution that's really better.
297 width = image_menu_item->image->requisition.width;
298 height = image_menu_item->image->requisition.height;
299 offset = GTK_CONTAINER (image_menu_item)->border_width +
300 widget->style->xthickness;
302 if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
304 x = offset + horizontal_padding +
305 (GTK_MENU_ITEM (image_menu_item)->toggle_size -
306 toggle_spacing - width) / 2;
310 x = widget->allocation.width - offset - horizontal_padding -
311 GTK_MENU_ITEM (image_menu_item)->toggle_size + toggle_spacing +
312 (GTK_MENU_ITEM (image_menu_item)->toggle_size -
313 toggle_spacing - width) / 2;
316 y = (widget->allocation.height - height) / 2;
318 child_allocation.width = width;
319 child_allocation.height = height;
320 child_allocation.x = widget->allocation.x + MAX (x, 0);
321 child_allocation.y = widget->allocation.y + MAX (y, 0);
323 gtk_widget_size_allocate (image_menu_item->image, &child_allocation);
328 gtk_image_menu_item_forall (GtkContainer *container,
329 gboolean include_internals,
330 GtkCallback callback,
331 gpointer callback_data)
333 GtkImageMenuItem *image_menu_item = GTK_IMAGE_MENU_ITEM (container);
335 (* GTK_CONTAINER_CLASS (parent_class)->forall) (container,
340 if (image_menu_item->image)
341 (* callback) (image_menu_item->image, callback_data);
345 * gtk_image_menu_item_new:
346 * @returns: a new #GtkImageMenuItem.
348 * Creates a new #GtkImageMenuItem with an empty label.
351 gtk_image_menu_item_new (void)
353 return g_object_new (GTK_TYPE_IMAGE_MENU_ITEM, NULL);
357 * gtk_image_menu_item_new_with_label:
358 * @label: the text of the menu item.
359 * @returns: a new #GtkImageMenuItem.
361 * Creates a new #GtkImageMenuItem containing a label.
364 gtk_image_menu_item_new_with_label (const gchar *label)
366 GtkImageMenuItem *image_menu_item;
367 GtkWidget *accel_label;
369 image_menu_item = g_object_new (GTK_TYPE_IMAGE_MENU_ITEM, NULL);
371 accel_label = gtk_accel_label_new (label);
372 gtk_misc_set_alignment (GTK_MISC (accel_label), 0.0, 0.5);
374 gtk_container_add (GTK_CONTAINER (image_menu_item), accel_label);
375 gtk_accel_label_set_accel_widget (GTK_ACCEL_LABEL (accel_label),
376 GTK_WIDGET (image_menu_item));
377 gtk_widget_show (accel_label);
379 return GTK_WIDGET(image_menu_item);
384 * gtk_image_menu_item_new_with_mnemonic:
385 * @label: the text of the menu item, with an underscore in front of the
387 * @returns: a new #GtkImageMenuItem
389 * Creates a new #GtkImageMenuItem containing a label. The label
390 * will be created using gtk_label_new_with_mnemonic(), so underscores
391 * in @label indicate the mnemonic for the menu item.
394 gtk_image_menu_item_new_with_mnemonic (const gchar *label)
396 GtkImageMenuItem *image_menu_item;
397 GtkWidget *accel_label;
399 image_menu_item = g_object_new (GTK_TYPE_IMAGE_MENU_ITEM, NULL);
401 accel_label = g_object_new (GTK_TYPE_ACCEL_LABEL, NULL);
402 gtk_label_set_text_with_mnemonic (GTK_LABEL (accel_label), label);
403 gtk_misc_set_alignment (GTK_MISC (accel_label), 0.0, 0.5);
405 gtk_container_add (GTK_CONTAINER (image_menu_item), accel_label);
406 gtk_accel_label_set_accel_widget (GTK_ACCEL_LABEL (accel_label),
407 GTK_WIDGET (image_menu_item));
408 gtk_widget_show (accel_label);
410 return GTK_WIDGET(image_menu_item);
414 * gtk_image_menu_item_new_from_stock:
415 * @stock_id: the name of the stock item.
416 * @accel_group: the #GtkAccelGroup to add the menu items accelerator to,
418 * @returns: a new #GtkImageMenuItem.
420 * Creates a new #GtkImageMenuItem containing the image and text from a
421 * stock item. Some stock ids have preprocessor macros like #GTK_STOCK_OK
422 * and #GTK_STOCK_APPLY.
424 * If you want this menu item to have changeable accelerators, then pass in
425 * %NULL for accel_group. Next call gtk_menu_item_set_accel_path() with an
426 * appropriate path for the menu item, use gtk_stock_lookup() to look up the
427 * standard accelerator for the stock item, and if one is found, call
428 * gtk_accel_map_add_entry() to register it.
431 gtk_image_menu_item_new_from_stock (const gchar *stock_id,
432 GtkAccelGroup *accel_group)
435 GtkStockItem stock_item;
438 g_return_val_if_fail (stock_id != NULL, NULL);
440 image = gtk_image_new_from_stock (stock_id, GTK_ICON_SIZE_MENU);
442 if (gtk_stock_lookup (stock_id, &stock_item))
444 item = gtk_image_menu_item_new_with_mnemonic (stock_item.label);
446 gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item), image);
448 if (stock_item.keyval && accel_group)
449 gtk_widget_add_accelerator (item,
458 item = gtk_image_menu_item_new_with_mnemonic (stock_id);
460 gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (item), image);
463 gtk_widget_show (image);
468 * gtk_image_menu_item_set_image:
469 * @image_menu_item: a #GtkImageMenuItem.
470 * @image: a widget to set as the image for the menu item.
472 * Sets the image of @image_menu_item to the given widget.
475 gtk_image_menu_item_set_image (GtkImageMenuItem *image_menu_item,
478 g_return_if_fail (GTK_IS_IMAGE_MENU_ITEM (image_menu_item));
480 if (image == image_menu_item->image)
483 if (image_menu_item->image)
484 gtk_container_remove (GTK_CONTAINER (image_menu_item),
485 image_menu_item->image);
487 image_menu_item->image = image;
492 gtk_widget_set_parent (image, GTK_WIDGET (image_menu_item));
494 "visible", show_image (image_menu_item),
498 g_object_notify (G_OBJECT (image_menu_item), "image");
502 * gtk_image_menu_item_get_image:
503 * @image_menu_item: a #GtkImageMenuItem.
504 * @returns: the widget set as image of @image_menu_item.
506 * Gets the widget that is currently set as the image of @image_menu_item.
507 * See gtk_image_menu_item_set_image().
510 gtk_image_menu_item_get_image (GtkImageMenuItem *image_menu_item)
512 g_return_val_if_fail (GTK_IS_IMAGE_MENU_ITEM (image_menu_item), NULL);
514 return image_menu_item->image;
518 gtk_image_menu_item_remove (GtkContainer *container,
521 GtkImageMenuItem *image_menu_item;
523 image_menu_item = GTK_IMAGE_MENU_ITEM (container);
525 if (child == image_menu_item->image)
527 gboolean widget_was_visible;
529 widget_was_visible = GTK_WIDGET_VISIBLE (child);
531 gtk_widget_unparent (child);
532 image_menu_item->image = NULL;
534 if (GTK_WIDGET_VISIBLE (container) && widget_was_visible)
535 gtk_widget_queue_resize (GTK_WIDGET (container));
537 g_object_notify (G_OBJECT (image_menu_item), "image");
541 (* GTK_CONTAINER_CLASS (parent_class)->remove) (container, child);
546 show_image_change_notify (GtkImageMenuItem *image_menu_item)
548 if (image_menu_item->image)
549 g_object_set (image_menu_item->image, "visible", show_image (image_menu_item), NULL);
553 gtk_image_menu_item_screen_changed (GtkWidget *widget,
554 GdkScreen *previous_screen)
556 GtkImageMenuItemPrivate *priv = GTK_IMAGE_MENU_ITEM_GET_PRIVATE (widget);
557 GtkSettings *settings;
559 if (gtk_widget_has_screen (widget))
560 settings = gtk_widget_get_settings (widget);
564 if (settings == priv->settings)
569 g_signal_handler_disconnect (priv->settings, priv->show_image_connection);
570 g_object_unref (priv->settings);
575 priv->show_image_connection =
576 g_signal_connect_swapped (settings,
577 "notify::gtk-menu-images",
578 G_CALLBACK (show_image_change_notify),
581 g_object_ref (settings);
582 priv->settings = settings;
585 priv->settings = NULL;
587 show_image_change_notify (GTK_IMAGE_MENU_ITEM (widget));