GestureController::ZoomGesture::ZoomGesture(WebPageProxy& page)
: Gesture(gtk_gesture_zoom_new(page.viewWidget()), page)
, m_initialScale(0)
, m_scale(0)
{
g_signal_connect_swapped(m_gesture.get(), "begin", G_CALLBACK(begin), this);
g_signal_connect_swapped(m_gesture.get(), "scale-changed", G_CALLBACK(scaleChanged), this);
}
GtkWidget *
do_gestures (GtkWidget *do_widget)
{
GtkWidget *drawing_area;
GtkGesture *gesture;
if (!window)
{
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_default_size (GTK_WINDOW (window), 400, 400);
gtk_window_set_title (GTK_WINDOW (window), "Gestures");
g_signal_connect (window, "destroy",
G_CALLBACK (gtk_widget_destroyed), &window);
drawing_area = gtk_drawing_area_new ();
gtk_container_add (GTK_CONTAINER (window), drawing_area);
gtk_widget_add_events (drawing_area,
GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
GDK_POINTER_MOTION_MASK | GDK_TOUCH_MASK);
g_signal_connect (drawing_area, "draw",
G_CALLBACK (drawing_area_draw), NULL);
/* Swipe */
gesture = gtk_gesture_swipe_new (drawing_area);
g_signal_connect (gesture, "swipe",
G_CALLBACK (swipe_gesture_swept), drawing_area);
gtk_event_controller_set_propagation_phase (GTK_EVENT_CONTROLLER (gesture),
GTK_PHASE_BUBBLE);
g_object_weak_ref (G_OBJECT (drawing_area), (GWeakNotify) g_object_unref, gesture);
/* Long press */
gesture = gtk_gesture_long_press_new (drawing_area);
g_signal_connect (gesture, "pressed",
G_CALLBACK (long_press_gesture_pressed), drawing_area);
g_signal_connect (gesture, "end",
G_CALLBACK (long_press_gesture_end), drawing_area);
gtk_event_controller_set_propagation_phase (GTK_EVENT_CONTROLLER (gesture),
GTK_PHASE_BUBBLE);
g_object_weak_ref (G_OBJECT (drawing_area), (GWeakNotify) g_object_unref, gesture);
/* Rotate */
rotate = gesture = gtk_gesture_rotate_new (drawing_area);
g_signal_connect (gesture, "angle-changed",
G_CALLBACK (rotation_angle_changed), drawing_area);
gtk_event_controller_set_propagation_phase (GTK_EVENT_CONTROLLER (gesture),
GTK_PHASE_BUBBLE);
g_object_weak_ref (G_OBJECT (drawing_area), (GWeakNotify) g_object_unref, gesture);
/* Zoom */
zoom = gesture = gtk_gesture_zoom_new (drawing_area);
g_signal_connect (gesture, "scale-changed",
G_CALLBACK (zoom_scale_changed), drawing_area);
gtk_event_controller_set_propagation_phase (GTK_EVENT_CONTROLLER (gesture),
GTK_PHASE_BUBBLE);
g_object_weak_ref (G_OBJECT (drawing_area), (GWeakNotify) g_object_unref, gesture);
}
if (!gtk_widget_get_visible (window))
gtk_widget_show_all (window);
else
{
gtk_widget_destroy (window);
window = NULL;
}
return window;
}
