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docs: Modernize an example

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The signals that are showcased here are going away.
This commit is contained in:
Matthias Clasen 2018-02-03 11:41:33 +01:00 committed by Carlos Garnacho
parent 918d552472
commit 2cc85df62b
1 changed files with 14 additions and 28 deletions
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42
gtk/gtkmenu.c
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@ -39,47 +39,33 @@
* Other composite widgets such as the #GtkNotebook can pop up a
* #GtkMenu as well.
*
* Applications can display a #GtkMenu as a popup menu by calling the
* Applications can display a #GtkMenu as a popup menu by calling the
* gtk_menu_popup() function. The example below shows how an application
* can pop up a menu when the 3rd mouse button is pressed.
* can pop up a menu when the 3rd mouse button is pressed.
*
* ## Connecting the popup signal handler.
*
* |[<!-- language="C" -->
* // connect our handler which will popup the menu
* g_signal_connect_swapped (window, "event",
* G_CALLBACK (my_popup_handler), menu);
* gesture = gtk_gesture_multi_press_new (window);
* gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (gesture),
* GDK_BUTTON_SECONDARY);
* g_signal_connect (gesture, "event", G_CALLBACK (my_popup_handler), menu);
* ]|
*
* ## Signal handler which displays a popup menu.
*
* |[<!-- language="C" -->
* static gint
* my_popup_handler (GtkWidget *widget, GdkEvent *event)
* static void
* my_popup_handler (GtkGesture *gesture,
* guint n_press,
* double x,
* double y,
* gpointer data)
* {
* GtkMenu *menu;
* guint button;
* GtkMenu *menu = data;
*
* g_return_val_if_fail (widget != NULL, FALSE);
* g_return_val_if_fail (GTK_IS_MENU (widget), FALSE);
* g_return_val_if_fail (event != NULL, FALSE);
*
* // The "widget" is the menu that was supplied when
* // g_signal_connect_swapped() was called.
* menu = GTK_MENU (widget);
*
* if (gdk_event_get_event_type (event) == GDK_BUTTON_PRESS)
* {
* gdk_event_get_button (event, &button);
* if (button == GDK_BUTTON_SECONDARY)
* {
* gtk_menu_popup (menu, NULL, NULL, NULL, NULL,
* button, gdk_event_get_time (event));
* return TRUE;
* }
* }
*
* return FALSE;
* gtk_menu_popup (menu, NULL, NULL, NULL, NULL, button, GDK_CURRENT_TIME);
* }
* ]|
*