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d732c869c2
Add the names of the main widgets as keywords to our demos, but also things like "game". This helps finding relevant demos in our growing list. You can now for example type "label", and find the "error states" and "links" demos showing GtkLabel features.
94 lines
2.5 KiB
C
94 lines
2.5 KiB
C
/* Shortcuts
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* #Keywords: GtkShortcutController
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*
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* GtkShortcut is the abstraction used by GTK to handle shortcuts from
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* keyboard or other input devices.
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*
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* Shortcut triggers can be used to weave complex sequences of key
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* presses into sophisticated mechanisms to activate shortcuts.
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*
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* This demo code shows creative ways to do that.
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*/
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#include <gtk/gtk.h>
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static GtkWidget *window = NULL;
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static gboolean
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shortcut_activated (GtkWidget *widget,
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GVariant *unused,
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gpointer row)
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{
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g_print ("activated %s\n", gtk_label_get_label (row));
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return TRUE;
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}
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static GtkShortcutTrigger *
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create_ctrl_g (void)
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{
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return gtk_keyval_trigger_new (GDK_KEY_g, GDK_CONTROL_MASK);
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}
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static GtkShortcutTrigger *
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create_x (void)
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{
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return gtk_keyval_trigger_new (GDK_KEY_x, 0);
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}
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struct {
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const char *description;
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GtkShortcutTrigger * (* create_trigger_func) (void);
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} shortcuts[] = {
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{ "Press Ctrl-G", create_ctrl_g },
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{ "Press X", create_x },
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};
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GtkWidget *
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do_shortcut_triggers (GtkWidget *do_widget)
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{
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guint i;
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if (!window)
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{
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GtkWidget *list;
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GtkEventController *controller;
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window = gtk_window_new ();
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gtk_window_set_display (GTK_WINDOW (window),
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gtk_widget_get_display (do_widget));
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gtk_window_set_title (GTK_WINDOW (window), "Shortcuts");
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g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
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list = gtk_list_box_new ();
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gtk_widget_set_margin_top (list, 6);
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gtk_widget_set_margin_bottom (list, 6);
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gtk_widget_set_margin_start (list, 6);
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gtk_widget_set_margin_end (list, 6);
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gtk_window_set_child (GTK_WINDOW (window), list);
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for (i = 0; i < G_N_ELEMENTS (shortcuts); i++)
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{
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GtkShortcut *shortcut;
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GtkWidget *row;
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row = gtk_label_new (shortcuts[i].description);
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gtk_list_box_insert (GTK_LIST_BOX (list), row, -1);
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controller = gtk_shortcut_controller_new ();
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gtk_shortcut_controller_set_scope (GTK_SHORTCUT_CONTROLLER (controller), GTK_SHORTCUT_SCOPE_GLOBAL);
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gtk_widget_add_controller (row, controller);
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shortcut = gtk_shortcut_new (shortcuts[i].create_trigger_func(),
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gtk_callback_action_new (shortcut_activated, row, NULL));
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gtk_shortcut_controller_add_shortcut (GTK_SHORTCUT_CONTROLLER (controller), shortcut);
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}
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}
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if (!gtk_widget_get_visible (window))
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gtk_widget_show (window);
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else
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gtk_window_destroy (GTK_WINDOW (window));
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return window;
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}
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