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gtk-demo: Port the sliding puzzle demo to shortcuts

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This commit is contained in:
Benjamin Otte 2018-08-18 20:01:27 +02:00 committed by Matthias Clasen
parent 92e20deca1
commit 1ec950d14a
1 changed files with 36 additions and 43 deletions
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79
demos/gtk-demo/sliding_puzzle.c
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@ -160,47 +160,13 @@ check_solved (GtkWidget *grid)
}
static gboolean
puzzle_key_pressed (GtkEventControllerKey *controller,
guint keyval,
guint keycode,
GdkModifierType state,
GtkWidget *grid)
puzzle_key_pressed (GtkWidget *grid,
GVariant *args,
gpointer unused)
{
int dx, dy;
dx = 0;
dy = 0;
switch (keyval)
{
case GDK_KEY_KP_Left:
case GDK_KEY_Left:
/* left */
dx = -1;
break;
case GDK_KEY_KP_Up:
case GDK_KEY_Up:
/* up */
dy = -1;
break;
case GDK_KEY_KP_Right:
case GDK_KEY_Right:
/* right */
dx = 1;
break;
case GDK_KEY_KP_Down:
case GDK_KEY_Down:
/* down */
dy = 1;
break;
default:
/* We return FALSE here because we didn't handle the key that was pressed */
return FALSE;
}
g_variant_get (args, "(ii)", &dx, &dy);
if (!move_puzzle (grid, dx, dy))
{
@ -276,6 +242,24 @@ puzzle_button_pressed (GtkGestureClick *gesture,
}
}
static void
add_move_binding (GtkShortcutController *controller,
guint keyval,
guint kp_keyval,
int dx,
int dy)
{
GtkShortcut *shortcut;
shortcut = gtk_shortcut_new_with_arguments (
gtk_alternative_trigger_new (gtk_keyval_trigger_new (keyval, 0),
gtk_keyval_trigger_new (kp_keyval, 0)),
gtk_callback_action_new (puzzle_key_pressed, NULL, NULL),
"(ii)", dx, dy);
gtk_shortcut_controller_add_shortcut (controller, shortcut);
g_object_unref (shortcut);
}
static void
start_puzzle (GdkPaintable *paintable)
{
@ -298,12 +282,21 @@ start_puzzle (GdkPaintable *paintable)
aspect_ratio = 1.0;
gtk_aspect_frame_set (GTK_ASPECT_FRAME (frame), 0.5, 0.5, aspect_ratio, FALSE);
/* Add a key event controller so people can use the arrow
/* Add shortcuts so people can use the arrow
* keys to move the puzzle */
controller = gtk_event_controller_key_new ();
g_signal_connect (controller, "key-pressed",
G_CALLBACK (puzzle_key_pressed),
grid);
controller = gtk_shortcut_controller_new ();
add_move_binding (GTK_SHORTCUT_CONTROLLER (controller),
GDK_KEY_Left, GDK_KEY_KP_Left,
-1, 0);
add_move_binding (GTK_SHORTCUT_CONTROLLER (controller),
GDK_KEY_Right, GDK_KEY_KP_Right,
1, 0);
add_move_binding (GTK_SHORTCUT_CONTROLLER (controller),
GDK_KEY_Up, GDK_KEY_KP_Up,
0, -1);
add_move_binding (GTK_SHORTCUT_CONTROLLER (controller),
GDK_KEY_Down, GDK_KEY_KP_Down,
0, 1);
gtk_widget_add_controller (GTK_WIDGET (grid), controller);
controller = GTK_EVENT_CONTROLLER (gtk_gesture_click_new ());