PintaProject/Pinta — pull request #49 by don-mccomb (2012-12-07 13:12:45+00:00)
Title: [Fixes Bug #1084213] Fixed sizing of canvas invalidation rectangle when zoomed in/out

The invalidation rectangle used when redrawing the canvas after undoing a SimpleHistoryItem while the image was zoomed was not correctly sized. This new code is based upon the code in the CanvasRenderer::CreateS2DLookup() methods.