zoom
Description:
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 set_scale on actor
using the ratio of the first distance between the touch points and the current distance. To override the default behaviour, connect to
this signal and return false.
Parameters:
| actor |
the Actor attached to the action |
| focal_point |
the focal point of the zoom |
| factor |
the initial distance between the 2 touch points |
Returns:
|
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