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docs: Clean up ZoomAction signal and description

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Remove the parts that were copied and pasted from DragAction.
This commit is contained in:
Emmanuele Bassi 2012-12-18 00:15:57 +00:00
parent 84b4f2f0a3
commit bd58c0bb24
1 changed files with 10 additions and 15 deletions
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25
clutter/clutter-zoom-action.c
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@ -28,7 +28,8 @@
* @Short_Description: Action enabling zooming on actors
*
* #ClutterZoomAction is a sub-class of #ClutterGestureAction that
* implements all the necessary logic for zooming actors.
* implements all the necessary logic for zooming actors using a "pinch"
* gesture between two touch points.
*
* The simplest usage of #ClutterZoomAction consists in adding it to
* a #ClutterActor and setting it as reactive; for instance, the following
@ -40,7 +41,7 @@
* ]|
*
* will automatically result in the actor to be scale according to the
* distance between 2 touch points.
* distance between two touch points.
*
* Since: 1.12
*/
@ -364,23 +365,17 @@ clutter_zoom_action_class_init (ClutterZoomActionClass *klass)
* ClutterZoomAction::zoom:
* @action: the #ClutterZoomAction that emitted the signal
* @actor: the #ClutterActor attached to the action
* @distance: the initial distance between the 2 touch points
* @focal_point: the focal point of the zoom
* @factor: the initial distance between the 2 touch points
*
* The ::zoom signal is emitted for each touch event after the
* #ClutterZoomAction::zoom-begin signal has been emitted.
*
* The components of the distance between the touch begin event and
* the latest touch update event are computed in the actor's
* coordinate space, to take into account eventual transformations.
* If you want the stage coordinates of the latest motion event you
* can use clutter_zoom_action_get_motion_coords().
* The ::zoom signal is emitted for each series of touch events that
* change the distance and focal point between the touch points.
*
* The default handler of the signal will call
* clutter_actor_set_scale() on @actor using the ratio of the first
* distance between the 2 touch points and the current distance. If
* you want to override the default behaviour, you can connect to
* this signal and call g_signal_stop_emission_by_name() from within
* your callback.
* distance between the touch points and the current distance. To
* override the default behaviour, connect to this signal and return
* %FALSE.
*
* Return value: %TRUE if the zoom should continue, and %FALSE if
* the zoom should be cancelled.