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/* Shortcuts
* #Keywords: GtkShortcutController
*
* GtkShortcut is the abstraction used by GTK to handle shortcuts from
* keyboard or other input devices.
*
* Shortcut triggers can be used to weave complex sequences of key
* presses into sophisticated mechanisms to activate shortcuts.
*
* This demo code shows creative ways to do that.
*/
#include <gtk/gtk.h>
static GtkWidget *window = NULL;
static gboolean
shortcut_activated (GtkWidget *widget,
GVariant *unused,
gpointer row)
{
g_print ("activated %s\n", gtk_label_get_label (row));
return TRUE;
}
static GtkShortcutTrigger *
create_ctrl_g (void)
{
return gtk_keyval_trigger_new (GDK_KEY_g, GDK_CONTROL_MASK);
}
static GtkShortcutTrigger *
create_x (void)
{
return gtk_keyval_trigger_new (GDK_KEY_x, 0);
}
struct {
const char *description;
GtkShortcutTrigger * (* create_trigger_func) (void);
} shortcuts[] = {
{ "Press Ctrl-G", create_ctrl_g },
{ "Press X", create_x },
};
GtkWidget *
do_shortcut_triggers (GtkWidget *do_widget)
{
guint i;
if (!window)
{
GtkWidget *list;
GtkEventController *controller;
window = gtk_window_new ();
gtk_window_set_display (GTK_WINDOW (window),
gtk_widget_get_display (do_widget));
gtk_window_set_title (GTK_WINDOW (window), "Shortcuts");
gtk_window_set_default_size (GTK_WINDOW (window), 200, -1);
gtk_window_set_resizable (GTK_WINDOW (window), FALSE);
g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
list = gtk_list_box_new ();
gtk_widget_set_margin_top (list, 6);
gtk_widget_set_margin_bottom (list, 6);
gtk_widget_set_margin_start (list, 6);
gtk_widget_set_margin_end (list, 6);
gtk_window_set_child (GTK_WINDOW (window), list);
for (i = 0; i < G_N_ELEMENTS (shortcuts); i++)
{
GtkShortcut *shortcut;
GtkWidget *row;
row = gtk_label_new (shortcuts[i].description);
gtk_list_box_insert (GTK_LIST_BOX (list), row, -1);
controller = gtk_shortcut_controller_new ();
gtk_shortcut_controller_set_scope (GTK_SHORTCUT_CONTROLLER (controller), GTK_SHORTCUT_SCOPE_GLOBAL);
gtk_widget_add_controller (row, controller);
shortcut = gtk_shortcut_new (shortcuts[i].create_trigger_func(),
gtk_callback_action_new (shortcut_activated, row, NULL));
gtk_shortcut_controller_add_shortcut (GTK_SHORTCUT_CONTROLLER (controller), shortcut);
}
}
if (!gtk_widget_get_visible (window))
gtk_widget_show (window);
else
gtk_window_destroy (GTK_WINDOW (window));
return window;
}
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