static void
clutter_zoom_action_gesture_cancel (ClutterGestureAction *action,
ClutterActor *actor)
{
ClutterZoomActionPrivate *priv = ((ClutterZoomAction *) action)->priv;
clutter_actor_set_translation (actor,
priv->initial_x,
priv->initial_y,
priv->initial_z);
clutter_actor_set_scale (actor, priv->initial_scale_x, priv->initial_scale_y);
}
/**
* champlain_point_set_size:
* @point: a #ChamplainPoint
* @size: The size of the point.
*
* Set the size of the point.
*
* Since: 0.10
*/
void
champlain_point_set_size (ChamplainPoint *point,
gdouble size)
{
g_return_if_fail (CHAMPLAIN_IS_POINT (point));
ChamplainPointPrivate *priv = point->priv;
point->priv->size = size;
clutter_canvas_set_size (CLUTTER_CANVAS (priv->canvas), size, size);
clutter_actor_set_size (CLUTTER_ACTOR (point), priv->size, priv->size);
clutter_actor_set_translation (CLUTTER_ACTOR (point), -priv->size/2, -priv->size/2, 0.0);
g_object_notify (G_OBJECT (point), "size");
clutter_content_invalidate (priv->canvas);
}
static gboolean
clutter_zoom_action_real_zoom (ClutterZoomAction *action,
ClutterActor *actor,
ClutterPoint *focal_point,
gdouble factor)
{
ClutterZoomActionPrivate *priv = action->priv;
gfloat x, y, z;
gdouble scale_x, scale_y;
ClutterVertex out, in;
in.x = priv->transformed_focal_point.x;
in.y = priv->transformed_focal_point.y;
in.z = 0;
clutter_actor_apply_transform_to_point (actor, &in, &out);
clutter_actor_get_scale (actor, &scale_x, &scale_y);
switch (priv->zoom_axis)
{
case CLUTTER_ZOOM_BOTH:
clutter_actor_set_scale (actor, factor, factor);
break;
case CLUTTER_ZOOM_X_AXIS:
clutter_actor_set_scale (actor, factor, scale_y);
break;
case CLUTTER_ZOOM_Y_AXIS:
clutter_actor_set_scale (actor, scale_x, factor);
break;
default:
break;
}
x = priv->initial_x + priv->focal_point.x - priv->initial_focal_point.x;
y = priv->initial_y + priv->focal_point.y - priv->initial_focal_point.y;
clutter_actor_get_translation (actor, NULL, NULL, &z);
clutter_actor_set_translation (actor, x, y, z);
return TRUE;
}
static void
champlain_point_init (ChamplainPoint *point)
{
ChamplainPointPrivate *priv = GET_PRIVATE (point);
point->priv = priv;
priv->color = clutter_color_copy (&DEFAULT_COLOR);
priv->size = 12;
priv->canvas = clutter_canvas_new ();
g_signal_connect (priv->canvas, "draw", G_CALLBACK (draw), point);
clutter_canvas_set_size (CLUTTER_CANVAS (priv->canvas), priv->size, priv->size);
clutter_actor_set_size (CLUTTER_ACTOR (point), priv->size, priv->size);
clutter_actor_set_content (CLUTTER_ACTOR (point), priv->canvas);
clutter_actor_set_translation (CLUTTER_ACTOR (point), -priv->size/2, -priv->size/2, 0.0);
clutter_content_invalidate (priv->canvas);
g_signal_connect (point, "notify::selected", G_CALLBACK (notify_selected), NULL);
}
