Пример #1
0
static void
gtk_switch_pan_gesture_drag_end (GtkGestureDrag *gesture,
                                 gdouble         x,
                                 gdouble         y,
                                 GtkSwitch      *sw)
{
  GtkSwitchPrivate *priv = sw->priv;
  GdkEventSequence *sequence;
  GtkAllocation allocation;
  gboolean active;

  sequence = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture));

  if (gtk_gesture_get_sequence_state (GTK_GESTURE (gesture), sequence) == GTK_EVENT_SEQUENCE_CLAIMED)
    {
      gtk_widget_get_allocation (GTK_WIDGET (sw), &allocation);

      /* if half the handle passed the middle of the switch, then we
       * consider it to be on
       */
      active = priv->handle_pos >= 0.5;
    }
  else if (!gtk_gesture_handles_sequence (priv->multipress_gesture, sequence))
    active = priv->is_active;
  else
    return;

  priv->handle_pos = active ? 1.0 : 0.0;
  gtk_switch_set_active (sw, active);
  gtk_widget_queue_allocate (GTK_WIDGET (sw));
}
Пример #2
0
static void
gtk_gesture_multi_press_begin (GtkGesture       *gesture,
                               GdkEventSequence *sequence)
{
    GtkGestureMultiPress *multi_press;
    GtkGestureMultiPressPrivate *priv;
    guint n_presses, button = 1;
    GdkEventSequence *current;
    const GdkEvent *event;
    GdkDevice *device;
    gdouble x, y;

    if (!gtk_gesture_handles_sequence (gesture, sequence))
        return;

    multi_press = GTK_GESTURE_MULTI_PRESS (gesture);
    priv = gtk_gesture_multi_press_get_instance_private (multi_press);
    event = gtk_gesture_get_last_event (gesture, sequence);
    current = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture));
    device = gdk_event_get_source_device (event);

    if (event->type == GDK_BUTTON_PRESS)
        button = event->button.button;
    else if (event->type == GDK_TOUCH_BEGIN)
        button = 1;
    else
        return;

    /* Reset the gesture if the button number changes mid-recognition */
    if (priv->n_presses > 0 &&
            priv->current_button != button)
        _gtk_gesture_multi_press_stop (multi_press);

    /* Reset also if the device changed */
    if (priv->current_device && priv->current_device != device)
        _gtk_gesture_multi_press_stop (multi_press);

    priv->current_device = device;
    priv->current_button = button;
    _gtk_gesture_multi_press_update_timeout (multi_press);
    gtk_gesture_get_point (gesture, current, &x, &y);

    if (!_gtk_gesture_multi_press_check_within_threshold (multi_press, x, y))
        _gtk_gesture_multi_press_stop (multi_press);

    /* Increment later the real counter, just if the gesture is
     * reset on the pressed handler */
    n_presses = priv->n_release = priv->n_presses + 1;

    g_signal_emit (gesture, signals[PRESSED], 0, n_presses, x, y);

    if (priv->n_presses == 0)
    {
        priv->initial_press_x = x;
        priv->initial_press_y = y;
    }

    priv->n_presses++;
}
void GestureController::DragGesture::end(DragGesture* dragGesture, GdkEventSequence* sequence, GtkGesture* gesture)
{
    dragGesture->m_longPressTimeout.cancel();
    if (!dragGesture->m_inDrag) {
        dragGesture->handleTap(gtk_gesture_get_last_event(gesture, sequence));
        gtk_gesture_set_state(gesture, GTK_EVENT_SEQUENCE_DENIED);
    } else if (!gtk_gesture_handles_sequence(gesture, sequence))
        gtk_gesture_set_state(gesture, GTK_EVENT_SEQUENCE_DENIED);
}
Пример #4
0
static void
gtk_switch_multipress_gesture_released (GtkGestureMultiPress *gesture,
                                        gint                  n_press,
                                        gdouble               x,
                                        gdouble               y,
                                        GtkSwitch            *sw)
{
  GtkSwitchPrivate *priv = sw->priv;
  GdkEventSequence *sequence;

  sequence = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture));

  if (priv->in_switch &&
      gtk_gesture_handles_sequence (GTK_GESTURE (gesture), sequence))
    gtk_switch_begin_toggle_animation (sw);
}
Пример #5
0
static gboolean
gtk_gesture_single_handle_event (GtkEventController *controller,
                                 const GdkEvent     *event)
{
  GdkEventSequence *sequence = NULL;
  GtkGestureSinglePrivate *priv;
  GdkDevice *source_device;
  GdkInputSource source;
  guint button = 0, i;
  gboolean retval, test_touchscreen = FALSE;

  source_device = gdk_event_get_source_device (event);

  if (!source_device)
    return FALSE;

  priv = gtk_gesture_single_get_instance_private (GTK_GESTURE_SINGLE (controller));
  source = gdk_device_get_source (source_device);

  if (source != GDK_SOURCE_TOUCHSCREEN)
    test_touchscreen = gtk_simulate_touchscreen ();

  switch (event->type)
    {
    case GDK_TOUCH_BEGIN:
    case GDK_TOUCH_END:
    case GDK_TOUCH_UPDATE:
      if (priv->exclusive && !event->touch.emulating_pointer)
        return FALSE;

      sequence = event->touch.sequence;
      button = 1;
      break;
    case GDK_BUTTON_PRESS:
    case GDK_BUTTON_RELEASE:
      if (priv->touch_only && !test_touchscreen && source != GDK_SOURCE_TOUCHSCREEN)
        return FALSE;

      button = event->button.button;
      break;
    case GDK_MOTION_NOTIFY:
      if (!gtk_gesture_handles_sequence (GTK_GESTURE (controller), sequence))
        return FALSE;
      if (priv->touch_only && !test_touchscreen && source != GDK_SOURCE_TOUCHSCREEN)
        return FALSE;

      if (priv->current_button > 0 && priv->current_button <= 5 &&
          (event->motion.state & (GDK_BUTTON1_MASK << (priv->current_button - 1))))
        button = priv->current_button;
      else if (priv->current_button == 0)
        {
          /* No current button, find out from the mask */
          for (i = 0; i < 3; i++)
            {
              if ((event->motion.state & (GDK_BUTTON1_MASK << i)) == 0)
                continue;
              button = i + 1;
              break;
            }
        }

      break;
    case GDK_TOUCH_CANCEL:
    case GDK_GRAB_BROKEN:
      return GTK_EVENT_CONTROLLER_CLASS (gtk_gesture_single_parent_class)->handle_event (controller,
                                                                                         event);
      break;
    default:
      return FALSE;
    }

  if (button == 0 ||
      (priv->button != 0 && priv->button != button) ||
      (priv->current_button != 0 && priv->current_button != button))
    {
      if (gtk_gesture_is_active (GTK_GESTURE (controller)))
        gtk_event_controller_reset (controller);
      return FALSE;
    }

  if (event->type == GDK_BUTTON_PRESS || event->type == GDK_TOUCH_BEGIN ||
      event->type == GDK_MOTION_NOTIFY || event->type == GDK_TOUCH_UPDATE)
    {
      if (!gtk_gesture_is_active (GTK_GESTURE (controller)))
        priv->current_sequence = sequence;

      priv->current_button = button;
    }

  retval = GTK_EVENT_CONTROLLER_CLASS (gtk_gesture_single_parent_class)->handle_event (controller, event);

  if (sequence == priv->current_sequence &&
      (event->type == GDK_BUTTON_RELEASE || event->type == GDK_TOUCH_END))
    priv->current_button = 0;
  else if (priv->current_sequence == sequence &&
           !gtk_gesture_handles_sequence (GTK_GESTURE (controller), sequence))
    {
      if (button == priv->current_button && event->type == GDK_BUTTON_PRESS)
        priv->current_button = 0;
      else if (sequence == priv->current_sequence && event->type == GDK_TOUCH_BEGIN)
        priv->current_sequence = NULL;
    }

  return retval;
}