Add an example for accelerators with manual image menuitems

This is somewhat tricky to work out, so put some example
code here for future reference. The tricky part is that
GtkAccelLabel tries to be smart about hiding the accel
if there's not enough space, so we have to make sure to
pack the label with expand=TRUE and set align=GTK_ALIGN_FILL,
or things won't work.

diff --git a/tests/teststockbuttonmenu.c b/tests/teststockbuttonmenu.c
index d36790ff198463423f48f5ee7bafb539bb50d74e..1095028dce0a0cd7dd7ad4670168b9ac71c9c123 100644 (file)
--- a/tests/teststockbuttonmenu.c
+++ b/tests/teststockbuttonmenu.c
@@ -10,8 +10,10 @@ int main (int argc, char **argv)
        GtkWidget *menu;
        GtkWidget *item;
        GtkWidget *box;
+       GtkWidget *label;
        GtkAction *action1;
        GtkAction *action2;
+        GtkAccelGroup *accel_group;
 
        gtk_init (&argc, &argv);
 
@@ -21,6 +23,9 @@ int main (int argc, char **argv)
 
        window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
 
+        accel_group = gtk_accel_group_new ();
+        gtk_window_add_accel_group (GTK_WINDOW (window), accel_group);
+
        grid = gtk_grid_new ();
        gtk_container_add (GTK_CONTAINER (window), grid);
 
@@ -58,6 +63,9 @@ int main (int argc, char **argv)
         gtk_container_add (GTK_CONTAINER (grid), button);
 
        menu = gtk_menu_new ();
+        gtk_menu_set_accel_group (GTK_MENU (menu), accel_group);
+        gtk_menu_set_accel_path (GTK_MENU (menu), "<menu>/TEST");
+
        gtk_menu_button_set_popup (GTK_MENU_BUTTON (button), menu);
 
        /* plain old stock menuitem */
@@ -65,7 +73,7 @@ int main (int argc, char **argv)
        gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
 
        /* gtk_image_menu_item_set_always_show_image still works */
-       item = gtk_image_menu_item_new_from_stock (GTK_STOCK_CLOSE, NULL);
+       item = gtk_image_menu_item_new_from_stock (GTK_STOCK_CLOSE, accel_group);
        gtk_image_menu_item_set_always_show_image (GTK_IMAGE_MENU_ITEM (item), TRUE);
        gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
 
@@ -74,9 +82,17 @@ int main (int argc, char **argv)
        box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 12);
        gtk_container_add (GTK_CONTAINER (item), box);
        gtk_container_add (GTK_CONTAINER (box), gtk_image_new_from_icon_name ("edit-clear", GTK_ICON_SIZE_MENU));
-       gtk_container_add (GTK_CONTAINER (box), gtk_label_new_with_mnemonic ("_Clear"));
+        label = gtk_accel_label_new ("C_lear");
+        gtk_label_set_use_underline (GTK_LABEL (label), TRUE);
+        gtk_label_set_xalign (GTK_LABEL (label), 0.0);
+        gtk_widget_set_halign (label, GTK_ALIGN_FILL);
+
+        gtk_widget_add_accelerator (item, "activate", accel_group,
+                                    GDK_KEY_x, GDK_CONTROL_MASK, GTK_ACCEL_VISIBLE);
+        gtk_accel_label_set_accel_widget (GTK_ACCEL_LABEL (label), item);
+       gtk_box_pack_end (GTK_BOX (box), label, TRUE, TRUE, 0);
        gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
-       
+
        /* GtkAction-backed menuitem */
        item = gtk_image_menu_item_new ();
        gtk_activatable_set_related_action (GTK_ACTIVATABLE (item), action1);