On 03/01/2017 08:17 PM, David C. Rankin wrote:
> All,
>
> I have a menubar (working fine) and I want to attach a popup menu to that
> widget to "show/hide" a toolbar below it. I cannot figure out how to attach
> the popup to the 'menubar' itself generically.
>
> GtkWidget *evbox; /* popup menu container */
> GtkWidget *pmenu; /* the menu */
> GtkWidget *pshowtbMI; /* the menu item */
>
> I've tried to attach the popup to the 'menubar' as a container with the
> following code:
>
> evbox = gtk_event_box_new();
> gtk_container_add (GTK_CONTAINER(menubar), evbox);
> pmenu = gtk_menu_new();
> pshowtbMI = gtk_check_menu_item_new_with_label ("Show Toolbar");
> gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM(pshowtbMI), TRUE);
> gtk_menu_shell_append (GTK_MENU_SHELL(pmenu), pshowtbMI);
> g_signal_connect_swapped (G_OBJECT(evbox), "button-press-event",
> G_CALLBACK(show_popup), pmenu);
> g_signal_connect (G_OBJECT(pshowtbMI), "activate",
> G_CALLBACK(menu_showtb_activate), app);
>
> The show_popup is a generic event-handler that responds to the right-mouse
> button (working fine).
>
> What can I do to provide a popup that will respond when I rt-click on a
> blank part of the menubar?
>
Well,
I have made progress. Rather than adding the eventbox container to the menu,
I added the menu to the eventbox container -- now the popup works fine when
right-clicking on the menubar... but clicking on the menus does not open them.
(the accelerators work fine and I can't open the menus with the menu
accelerators (e.g. Alt+F opens the file menu) I suspect this is a problem with
the event_box event-handler that catches the right-click but does not
propagate the left-click to the menu inside it.
The current setup for the popup menu is:
evbox = gtk_event_box_new();
/* modified menu in container - popup works, but menu doesn't */
gtk_container_add (GTK_CONTAINER(evbox), menubar);
pmenu = gtk_menu_new();
pshowtbMI = gtk_check_menu_item_new_with_label ("Show Toolbar");
gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM(pshowtbMI), TRUE);
gtk_menu_shell_append (GTK_MENU_SHELL(pmenu), pshowtbMI);
/* modified menu in container - popup works, but menu doesn't */
g_signal_connect_swapped (G_OBJECT(menubar), "button-press-event",
G_CALLBACK(show_popup), pmenu);
g_signal_connect (G_OBJECT(pshowtbMI), "activate",
G_CALLBACK(menu_showtb_activate), app);
The event handler I'm using 'show_popup' is:
gboolean show_popup(GtkWidget *widget, GdkEvent *event)
{
const guint RIGHT_CLICK = 3;
if (event->type == GDK_BUTTON_PRESS) {
GdkEventButton *bevent = (GdkEventButton *) event;
if (bevent->button == RIGHT_CLICK) {
gtk_menu_popup(GTK_MENU(widget), NULL, NULL, NULL, NULL,
bevent->button, bevent->time);
}
return TRUE;
}
return FALSE;
}
Do I need to somehow explicitly pass the button-press-event to the menubar
within the event_box somehow?
--
David C. Rankin, J.D.,P.E.
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