Julian Harnath 4bd6f322bb app_server/Interface Kit: add new clipping API
* Add new clipping API for rectangles (ClipToRect, ClipToInverseRect)
  and shapes (ClipToShape, ClipToInverseShape)

* Works with affine transforms and automatically switches from fast
  region-based clipping to alpha-mask based clipping as necessary.

* Always self-intersecting, i.e. no state push required to further
  narrow down the clipping region. All of the 4 new methods can be
  mixed in any order.
2015-11-10 23:33:54 +01:00
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