1 /* GTK - The GIMP Toolkit
2 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
4 * GtkAccelLabel: GtkLabel with accelerator monitoring facilities.
5 * Copyright (C) 1998 Tim Janik
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the
19 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 * Boston, MA 02111-1307, USA.
24 * Modified by the GTK+ Team and others 1997-2001. See the AUTHORS
25 * file for a list of people on the GTK+ Team. See the ChangeLog
26 * files for a list of changes. These files are distributed with
27 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
33 #include "gtkaccellabel.h"
34 #include "gtkaccelmap.h"
36 #include "gtksizerequest.h"
37 #include "gtkprivate.h"
41 * SECTION:gtkaccellabel
42 * @Short_description: A label which displays an accelerator key on the right of the text
43 * @Title: GtkAccelLabel
44 * @See_also: #GtkAccelGroup
46 * The #GtkAccelLabel widget is a subclass of #GtkLabel that also displays an
47 * accelerator key on the right of the label text, e.g. 'Ctl+S'.
48 * It is commonly used in menus to show the keyboard short-cuts for commands.
50 * The accelerator key to display is not set explicitly.
51 * Instead, the #GtkAccelLabel displays the accelerators which have been added to
52 * a particular widget. This widget is set by calling
53 * gtk_accel_label_set_accel_widget().
55 * For example, a #GtkMenuItem widget may have an accelerator added to emit the
56 * "activate" signal when the 'Ctl+S' key combination is pressed.
57 * A #GtkAccelLabel is created and added to the #GtkMenuItem, and
58 * gtk_accel_label_set_accel_widget() is called with the #GtkMenuItem as the
59 * second argument. The #GtkAccelLabel will now display 'Ctl+S' after its label.
61 * Note that creating a #GtkMenuItem with gtk_menu_item_new_with_label() (or
62 * one of the similar functions for #GtkCheckMenuItem and #GtkRadioMenuItem)
63 * automatically adds a #GtkAccelLabel to the #GtkMenuItem and calls
64 * gtk_accel_label_set_accel_widget() to set it up for you.
66 * A #GtkAccelLabel will only display accelerators which have %GTK_ACCEL_VISIBLE
67 * set (see #GtkAccelFlags).
68 * A #GtkAccelLabel can display multiple accelerators and even signal names,
69 * though it is almost always used to display just one accelerator key.
71 * <title>Creating a simple menu item with an accelerator key.</title>
73 * GtkWidget *save_item;
74 * GtkAccelGroup *accel_group;
76 * /<!---->* Create a GtkAccelGroup and add it to the window. *<!---->/
77 * accel_group = gtk_accel_group_new (<!-- -->);
78 * gtk_window_add_accel_group (GTK_WINDOW (window), accel_group);
80 * /<!---->* Create the menu item using the convenience function. *<!---->/
81 * save_item = gtk_menu_item_new_with_label ("Save");
82 * gtk_widget_show (save_item);
83 * gtk_container_add (GTK_CONTAINER (menu), save_item);
85 * /<!---->* Now add the accelerator to the GtkMenuItem. Note that since we called
86 * gtk_menu_item_new_with_label(<!-- -->) to create the GtkMenuItem the
87 * GtkAccelLabel is automatically set up to display the GtkMenuItem
88 * accelerators. We just need to make sure we use GTK_ACCEL_VISIBLE here. *<!---->/
89 * gtk_widget_add_accelerator (save_item, "activate", accel_group,
90 * GDK_s, GDK_CONTROL_MASK, GTK_ACCEL_VISIBLE);
101 struct _GtkAccelLabelPrivate
103 guint accel_padding; /* should be style property? */
104 GtkWidget *accel_widget; /* done*/
105 GClosure *accel_closure; /* has set function */
106 GtkAccelGroup *accel_group; /* set by set_accel_closure() */
107 gchar *accel_string; /* has set function */
108 guint16 accel_string_width; /* seems to be private */
111 static void gtk_accel_label_set_property (GObject *object,
115 static void gtk_accel_label_get_property (GObject *object,
119 static void gtk_accel_label_destroy (GtkWidget *widget);
120 static void gtk_accel_label_finalize (GObject *object);
121 static gboolean gtk_accel_label_draw (GtkWidget *widget,
123 static const gchar *gtk_accel_label_get_string (GtkAccelLabel *accel_label);
126 static void gtk_accel_label_get_preferred_width (GtkWidget *widget,
130 #define GTK_ACCEL_LABEL_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GTK_TYPE_ACCEL_LABEL, GtkAccelLabelPrivate))
133 G_DEFINE_TYPE (GtkAccelLabel, gtk_accel_label, GTK_TYPE_LABEL)
136 gtk_accel_label_class_init (GtkAccelLabelClass *class)
138 GObjectClass *gobject_class = G_OBJECT_CLASS (class);
139 GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
141 gobject_class->finalize = gtk_accel_label_finalize;
142 gobject_class->set_property = gtk_accel_label_set_property;
143 gobject_class->get_property = gtk_accel_label_get_property;
145 widget_class->draw = gtk_accel_label_draw;
146 widget_class->get_preferred_width = gtk_accel_label_get_preferred_width;
147 widget_class->destroy = gtk_accel_label_destroy;
149 class->signal_quote1 = g_strdup ("<:");
150 class->signal_quote2 = g_strdup (":>");
152 #ifndef GDK_WINDOWING_QUARTZ
153 /* This is the text that should appear next to menu accelerators
154 * that use the shift key. If the text on this key isn't typically
155 * translated on keyboards used for your language, don't translate
158 class->mod_name_shift = g_strdup (C_("keyboard label", "Shift"));
159 /* This is the text that should appear next to menu accelerators
160 * that use the control key. If the text on this key isn't typically
161 * translated on keyboards used for your language, don't translate
164 class->mod_name_control = g_strdup (C_("keyboard label", "Ctrl"));
165 /* This is the text that should appear next to menu accelerators
166 * that use the alt key. If the text on this key isn't typically
167 * translated on keyboards used for your language, don't translate
170 class->mod_name_alt = g_strdup (C_("keyboard label", "Alt"));
171 class->mod_separator = g_strdup ("+");
172 #else /* GDK_WINDOWING_QUARTZ */
174 /* U+21E7 UPWARDS WHITE ARROW */
175 class->mod_name_shift = g_strdup ("\xe2\x87\xa7");
176 /* U+2303 UP ARROWHEAD */
177 class->mod_name_control = g_strdup ("\xe2\x8c\x83");
178 /* U+2325 OPTION KEY */
179 class->mod_name_alt = g_strdup ("\xe2\x8c\xa5");
180 class->mod_separator = g_strdup ("");
182 #endif /* GDK_WINDOWING_QUARTZ */
184 g_object_class_install_property (gobject_class,
186 g_param_spec_boxed ("accel-closure",
187 P_("Accelerator Closure"),
188 P_("The closure to be monitored for accelerator changes"),
190 GTK_PARAM_READWRITE));
191 g_object_class_install_property (gobject_class,
193 g_param_spec_object ("accel-widget",
194 P_("Accelerator Widget"),
195 P_("The widget to be monitored for accelerator changes"),
197 GTK_PARAM_READWRITE));
199 g_type_class_add_private (gobject_class, sizeof (GtkAccelLabelPrivate));
203 gtk_accel_label_set_property (GObject *object,
208 GtkAccelLabel *accel_label;
210 accel_label = GTK_ACCEL_LABEL (object);
214 case PROP_ACCEL_CLOSURE:
215 gtk_accel_label_set_accel_closure (accel_label, g_value_get_boxed (value));
217 case PROP_ACCEL_WIDGET:
218 gtk_accel_label_set_accel_widget (accel_label, g_value_get_object (value));
221 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
227 gtk_accel_label_get_property (GObject *object,
232 GtkAccelLabel *accel_label;
234 accel_label = GTK_ACCEL_LABEL (object);
238 case PROP_ACCEL_CLOSURE:
239 g_value_set_boxed (value, accel_label->priv->accel_closure);
241 case PROP_ACCEL_WIDGET:
242 g_value_set_object (value, accel_label->priv->accel_widget);
245 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
251 gtk_accel_label_init (GtkAccelLabel *accel_label)
253 GtkAccelLabelPrivate *priv = GTK_ACCEL_LABEL_GET_PRIVATE (accel_label);
255 priv->accel_padding = 3;
256 priv->accel_widget = NULL;
257 priv->accel_closure = NULL;
258 priv->accel_group = NULL;
259 priv->accel_string = NULL;
261 accel_label->priv = priv;
265 * gtk_accel_label_new:
266 * @string: the label string. Must be non-%NULL.
268 * Creates a new #GtkAccelLabel.
270 * Returns: a new #GtkAccelLabel.
273 gtk_accel_label_new (const gchar *string)
275 GtkAccelLabel *accel_label;
277 g_return_val_if_fail (string != NULL, NULL);
279 accel_label = g_object_new (GTK_TYPE_ACCEL_LABEL, NULL);
281 gtk_label_set_text (GTK_LABEL (accel_label), string);
283 return GTK_WIDGET (accel_label);
287 gtk_accel_label_destroy (GtkWidget *widget)
289 GtkAccelLabel *accel_label = GTK_ACCEL_LABEL (widget);
291 gtk_accel_label_set_accel_widget (accel_label, NULL);
292 gtk_accel_label_set_accel_closure (accel_label, NULL);
294 GTK_WIDGET_CLASS (gtk_accel_label_parent_class)->destroy (widget);
298 gtk_accel_label_finalize (GObject *object)
300 GtkAccelLabel *accel_label = GTK_ACCEL_LABEL (object);
302 g_free (accel_label->priv->accel_string);
304 G_OBJECT_CLASS (gtk_accel_label_parent_class)->finalize (object);
308 * gtk_accel_label_get_accel_widget:
309 * @accel_label: a #GtkAccelLabel
311 * Fetches the widget monitored by this accelerator label. See
312 * gtk_accel_label_set_accel_widget().
314 * Returns: (transfer none): the object monitored by the accelerator label, or %NULL.
317 gtk_accel_label_get_accel_widget (GtkAccelLabel *accel_label)
319 g_return_val_if_fail (GTK_IS_ACCEL_LABEL (accel_label), NULL);
321 return accel_label->priv->accel_widget;
325 * gtk_accel_label_get_accel_width:
326 * @accel_label: a #GtkAccelLabel.
328 * Returns the width needed to display the accelerator key(s).
329 * This is used by menus to align all of the #GtkMenuItem widgets, and shouldn't
330 * be needed by applications.
332 * Returns: the width needed to display the accelerator key(s).
335 gtk_accel_label_get_accel_width (GtkAccelLabel *accel_label)
337 g_return_val_if_fail (GTK_IS_ACCEL_LABEL (accel_label), 0);
339 return (accel_label->priv->accel_string_width +
340 (accel_label->priv->accel_string_width ? accel_label->priv->accel_padding : 0));
344 gtk_accel_label_get_preferred_width (GtkWidget *widget,
348 GtkAccelLabel *accel_label = GTK_ACCEL_LABEL (widget);
352 GTK_WIDGET_CLASS (gtk_accel_label_parent_class)->get_preferred_width (widget, min_width, nat_width);
354 layout = gtk_widget_create_pango_layout (GTK_WIDGET (widget),
355 gtk_accel_label_get_string (accel_label));
356 pango_layout_get_pixel_size (layout, &width, NULL);
357 accel_label->priv->accel_string_width = width;
359 g_object_unref (layout);
363 get_first_baseline (PangoLayout *layout)
365 PangoLayoutIter *iter;
368 iter = pango_layout_get_iter (layout);
369 result = pango_layout_iter_get_baseline (iter);
370 pango_layout_iter_free (iter);
372 return PANGO_PIXELS (result);
376 gtk_accel_label_draw (GtkWidget *widget,
379 GtkAccelLabel *accel_label = GTK_ACCEL_LABEL (widget);
380 GtkMisc *misc = GTK_MISC (accel_label);
381 GtkTextDirection direction;
383 GtkAllocation allocation;
384 GtkRequisition requisition;
386 direction = gtk_widget_get_direction (widget);
387 ac_width = gtk_accel_label_get_accel_width (accel_label);
388 gtk_widget_get_allocation (widget, &allocation);
389 gtk_widget_get_preferred_size (widget, &requisition, NULL);
391 if (allocation.width >= requisition.width + ac_width)
393 GtkStyleContext *context;
394 PangoLayout *label_layout;
395 PangoLayout *accel_layout;
396 GtkLabel *label = GTK_LABEL (widget);
402 context = gtk_widget_get_style_context (widget);
403 label_layout = gtk_label_get_layout (GTK_LABEL (accel_label));
407 /* XXX: Mad hack: We modify the label's width so it renders
408 * properly in its draw function that we chain to. */
409 if (direction == GTK_TEXT_DIR_RTL)
410 cairo_translate (cr, ac_width, 0);
411 if (gtk_label_get_ellipsize (label))
412 pango_layout_set_width (label_layout,
413 pango_layout_get_width (label_layout)
414 - ac_width * PANGO_SCALE);
416 allocation.width -= ac_width;
417 gtk_widget_set_allocation (widget, &allocation);
418 if (GTK_WIDGET_CLASS (gtk_accel_label_parent_class)->draw)
419 GTK_WIDGET_CLASS (gtk_accel_label_parent_class)->draw (widget,
421 allocation.width += ac_width;
422 gtk_widget_set_allocation (widget, &allocation);
423 if (gtk_label_get_ellipsize (label))
424 pango_layout_set_width (label_layout,
425 pango_layout_get_width (label_layout)
426 + ac_width * PANGO_SCALE);
430 gtk_misc_get_padding (misc, &xpad, NULL);
432 if (direction == GTK_TEXT_DIR_RTL)
435 x = gtk_widget_get_allocated_width (widget) - xpad - ac_width;
437 gtk_label_get_layout_offsets (GTK_LABEL (accel_label), NULL, &y);
439 accel_layout = gtk_widget_create_pango_layout (widget, gtk_accel_label_get_string (accel_label));
441 y += get_first_baseline (label_layout) - get_first_baseline (accel_layout) - allocation.y;
443 gtk_style_context_save (context);
444 gtk_style_context_add_class (context, GTK_STYLE_CLASS_ACCELERATOR);
445 gtk_style_context_set_state (context, gtk_widget_get_state_flags (widget));
447 gtk_render_layout (context, cr, x, y, accel_layout);
448 gtk_style_context_restore (context);
450 g_object_unref (accel_layout);
454 if (GTK_WIDGET_CLASS (gtk_accel_label_parent_class)->draw)
455 GTK_WIDGET_CLASS (gtk_accel_label_parent_class)->draw (widget, cr);
462 refetch_widget_accel_closure (GtkAccelLabel *accel_label)
464 GClosure *closure = NULL;
467 g_return_if_fail (GTK_IS_ACCEL_LABEL (accel_label));
468 g_return_if_fail (GTK_IS_WIDGET (accel_label->priv->accel_widget));
470 clist = gtk_widget_list_accel_closures (accel_label->priv->accel_widget);
471 for (list = clist; list; list = list->next)
473 /* we just take the first closure used */
474 closure = list->data;
478 gtk_accel_label_set_accel_closure (accel_label, closure);
482 * gtk_accel_label_set_accel_widget:
483 * @accel_label: a #GtkAccelLabel
484 * @accel_widget: the widget to be monitored.
486 * Sets the widget to be monitored by this accelerator label.
489 gtk_accel_label_set_accel_widget (GtkAccelLabel *accel_label,
490 GtkWidget *accel_widget)
492 g_return_if_fail (GTK_IS_ACCEL_LABEL (accel_label));
494 g_return_if_fail (GTK_IS_WIDGET (accel_widget));
496 if (accel_widget != accel_label->priv->accel_widget)
498 if (accel_label->priv->accel_widget)
500 gtk_accel_label_set_accel_closure (accel_label, NULL);
501 g_signal_handlers_disconnect_by_func (accel_label->priv->accel_widget,
502 refetch_widget_accel_closure,
504 g_object_unref (accel_label->priv->accel_widget);
506 accel_label->priv->accel_widget = accel_widget;
507 if (accel_label->priv->accel_widget)
509 g_object_ref (accel_label->priv->accel_widget);
510 g_signal_connect_object (accel_label->priv->accel_widget, "accel-closures-changed",
511 G_CALLBACK (refetch_widget_accel_closure),
512 accel_label, G_CONNECT_SWAPPED);
513 refetch_widget_accel_closure (accel_label);
515 g_object_notify (G_OBJECT (accel_label), "accel-widget");
520 gtk_accel_label_reset (GtkAccelLabel *accel_label)
522 if (accel_label->priv->accel_string)
524 g_free (accel_label->priv->accel_string);
525 accel_label->priv->accel_string = NULL;
528 gtk_widget_queue_resize (GTK_WIDGET (accel_label));
532 check_accel_changed (GtkAccelGroup *accel_group,
534 GdkModifierType modifier,
535 GClosure *accel_closure,
536 GtkAccelLabel *accel_label)
538 if (accel_closure == accel_label->priv->accel_closure)
539 gtk_accel_label_reset (accel_label);
543 * gtk_accel_label_set_accel_closure:
544 * @accel_label: a #GtkAccelLabel
545 * @accel_closure: the closure to monitor for accelerator changes.
547 * Sets the closure to be monitored by this accelerator label. The closure
548 * must be connected to an accelerator group; see gtk_accel_group_connect().
551 gtk_accel_label_set_accel_closure (GtkAccelLabel *accel_label,
552 GClosure *accel_closure)
554 g_return_if_fail (GTK_IS_ACCEL_LABEL (accel_label));
556 g_return_if_fail (gtk_accel_group_from_accel_closure (accel_closure) != NULL);
558 if (accel_closure != accel_label->priv->accel_closure)
560 if (accel_label->priv->accel_closure)
562 g_signal_handlers_disconnect_by_func (accel_label->priv->accel_group,
565 accel_label->priv->accel_group = NULL;
566 g_closure_unref (accel_label->priv->accel_closure);
568 accel_label->priv->accel_closure = accel_closure;
569 if (accel_label->priv->accel_closure)
571 g_closure_ref (accel_label->priv->accel_closure);
572 accel_label->priv->accel_group = gtk_accel_group_from_accel_closure (accel_closure);
573 g_signal_connect_object (accel_label->priv->accel_group, "accel-changed",
574 G_CALLBACK (check_accel_changed),
577 gtk_accel_label_reset (accel_label);
578 g_object_notify (G_OBJECT (accel_label), "accel-closure");
583 find_accel (GtkAccelKey *key,
587 return data == (gpointer) closure;
591 gtk_accel_label_get_string (GtkAccelLabel *accel_label)
593 if (!accel_label->priv->accel_string)
594 gtk_accel_label_refetch (accel_label);
596 return accel_label->priv->accel_string;
599 /* Underscores in key names are better displayed as spaces
600 * E.g., Page_Up should be "Page Up"
603 substitute_underscores (char *str)
607 for (p = str; *p; p++)
612 /* On Mac, if the key has symbolic representation (e.g. arrow keys),
613 * append it to gstring and return TRUE; otherwise return FALSE.
614 * See http://docs.info.apple.com/article.html?path=Mac/10.5/en/cdb_symbs.html
615 * for the list of special keys. */
617 append_keyval_symbol (guint accelerator_key,
620 #ifdef GDK_WINDOWING_QUARTZ
621 switch (accelerator_key)
624 /* U+21A9 LEFTWARDS ARROW WITH HOOK */
625 g_string_append (gstring, "\xe2\x86\xa9");
628 case GDK_KEY_ISO_Enter:
629 /* U+2324 UP ARROWHEAD BETWEEN TWO HORIZONTAL BARS */
630 g_string_append (gstring, "\xe2\x8c\xa4");
634 /* U+2190 LEFTWARDS ARROW */
635 g_string_append (gstring, "\xe2\x86\x90");
639 /* U+2191 UPWARDS ARROW */
640 g_string_append (gstring, "\xe2\x86\x91");
644 /* U+2192 RIGHTWARDS ARROW */
645 g_string_append (gstring, "\xe2\x86\x92");
649 /* U+2193 DOWNWARDS ARROW */
650 g_string_append (gstring, "\xe2\x86\x93");
653 case GDK_KEY_Page_Up:
654 /* U+21DE UPWARDS ARROW WITH DOUBLE STROKE */
655 g_string_append (gstring, "\xe2\x87\x9e");
658 case GDK_KEY_Page_Down:
659 /* U+21DF DOWNWARDS ARROW WITH DOUBLE STROKE */
660 g_string_append (gstring, "\xe2\x87\x9f");
664 /* U+2196 NORTH WEST ARROW */
665 g_string_append (gstring, "\xe2\x86\x96");
669 /* U+2198 SOUTH EAST ARROW */
670 g_string_append (gstring, "\xe2\x86\x98");
674 /* U+238B BROKEN CIRCLE WITH NORTHWEST ARROW */
675 g_string_append (gstring, "\xe2\x8e\x8b");
678 case GDK_KEY_BackSpace:
679 /* U+232B ERASE TO THE LEFT */
680 g_string_append (gstring, "\xe2\x8c\xab");
684 /* U+2326 ERASE TO THE RIGHT */
685 g_string_append (gstring, "\xe2\x8c\xa6");
691 #else /* !GDK_WINDOWING_QUARTZ */
697 _gtk_accel_label_class_get_accelerator_label (GtkAccelLabelClass *klass,
698 guint accelerator_key,
699 GdkModifierType accelerator_mods)
702 gboolean seen_mod = FALSE;
705 gstring = g_string_new ("");
707 if (accelerator_mods & GDK_SHIFT_MASK)
709 g_string_append (gstring, klass->mod_name_shift);
712 if (accelerator_mods & GDK_CONTROL_MASK)
715 g_string_append (gstring, klass->mod_separator);
716 g_string_append (gstring, klass->mod_name_control);
719 if (accelerator_mods & GDK_MOD1_MASK)
722 g_string_append (gstring, klass->mod_separator);
723 g_string_append (gstring, klass->mod_name_alt);
726 if (accelerator_mods & GDK_MOD2_MASK)
729 g_string_append (gstring, klass->mod_separator);
731 g_string_append (gstring, "Mod2");
734 if (accelerator_mods & GDK_MOD3_MASK)
737 g_string_append (gstring, klass->mod_separator);
739 g_string_append (gstring, "Mod3");
742 if (accelerator_mods & GDK_MOD4_MASK)
745 g_string_append (gstring, klass->mod_separator);
747 g_string_append (gstring, "Mod4");
750 if (accelerator_mods & GDK_MOD5_MASK)
753 g_string_append (gstring, klass->mod_separator);
755 g_string_append (gstring, "Mod5");
758 if (accelerator_mods & GDK_SUPER_MASK)
761 g_string_append (gstring, klass->mod_separator);
763 /* This is the text that should appear next to menu accelerators
764 * that use the super key. If the text on this key isn't typically
765 * translated on keyboards used for your language, don't translate
768 g_string_append (gstring, C_("keyboard label", "Super"));
771 if (accelerator_mods & GDK_HYPER_MASK)
774 g_string_append (gstring, klass->mod_separator);
776 /* This is the text that should appear next to menu accelerators
777 * that use the hyper key. If the text on this key isn't typically
778 * translated on keyboards used for your language, don't translate
781 g_string_append (gstring, C_("keyboard label", "Hyper"));
784 if (accelerator_mods & GDK_META_MASK)
787 g_string_append (gstring, klass->mod_separator);
789 #ifndef GDK_WINDOWING_QUARTZ
790 /* This is the text that should appear next to menu accelerators
791 * that use the meta key. If the text on this key isn't typically
792 * translated on keyboards used for your language, don't translate
795 g_string_append (gstring, C_("keyboard label", "Meta"));
797 /* Command key symbol U+2318 PLACE OF INTEREST SIGN */
798 g_string_append (gstring, "\xe2\x8c\x98");
803 g_string_append (gstring, klass->mod_separator);
805 ch = gdk_keyval_to_unicode (accelerator_key);
806 if (ch && ch < 0x80 && (g_unichar_isgraph (ch) || ch == ' '))
811 g_string_append (gstring, C_("keyboard label", "Space"));
814 g_string_append (gstring, C_("keyboard label", "Backslash"));
817 g_string_append_unichar (gstring, g_unichar_toupper (ch));
821 else if (!append_keyval_symbol (accelerator_key, gstring))
825 tmp = gdk_keyval_name (gdk_keyval_to_lower (accelerator_key));
828 if (tmp[0] != 0 && tmp[1] == 0)
829 g_string_append_c (gstring, g_ascii_toupper (tmp[0]));
833 str = g_dpgettext2 (GETTEXT_PACKAGE, "keyboard label", tmp);
836 g_string_append (gstring, tmp);
837 substitute_underscores (gstring->str);
840 g_string_append (gstring, str);
845 return g_string_free (gstring, FALSE);
849 * gtk_accel_label_refetch:
850 * @accel_label: a #GtkAccelLabel.
852 * Recreates the string representing the accelerator keys.
853 * This should not be needed since the string is automatically updated whenever
854 * accelerators are added or removed from the associated widget.
856 * Returns: always returns %FALSE.
859 gtk_accel_label_refetch (GtkAccelLabel *accel_label)
861 gboolean enable_accels;
863 g_return_val_if_fail (GTK_IS_ACCEL_LABEL (accel_label), FALSE);
865 if (accel_label->priv->accel_string)
867 g_free (accel_label->priv->accel_string);
868 accel_label->priv->accel_string = NULL;
871 g_object_get (gtk_widget_get_settings (GTK_WIDGET (accel_label)),
872 "gtk-enable-accels", &enable_accels,
875 if (enable_accels && accel_label->priv->accel_closure)
877 GtkAccelKey *key = gtk_accel_group_find (accel_label->priv->accel_group, find_accel, accel_label->priv->accel_closure);
879 if (key && key->accel_flags & GTK_ACCEL_VISIBLE)
881 GtkAccelLabelClass *klass;
884 klass = GTK_ACCEL_LABEL_GET_CLASS (accel_label);
885 tmp = _gtk_accel_label_class_get_accelerator_label (klass,
888 accel_label->priv->accel_string = g_strconcat (" ", tmp, NULL);
891 if (!accel_label->priv->accel_string)
892 accel_label->priv->accel_string = g_strdup ("-/-");
895 if (!accel_label->priv->accel_string)
896 accel_label->priv->accel_string = g_strdup ("");
898 gtk_widget_queue_resize (GTK_WIDGET (accel_label));