[Libreoffice-commits] core.git: cppcanvas/source

[Armin Le Grand]

 cppcanvas/source/mtfrenderer/transparencygroupaction.cxx |   10 ++++++++++
 1 file changed, 10 insertions(+)

New commits:
commit 1c85800345239754d5c4ec71c2aad526d0439eea
Author: Armin Le Grand <Armin.Le.Grand at cib.de>
Date:   Fri Feb 26 16:37:32 2016 +0100

    tdf#95709 adapt clip polygon for transparence groups
    
    For presentation transparence groups are rendered by the canvas
    using VirtualDevices and Bitmaps. To adapt for then painting
    the Bitnmap to the canvas the RenderState needs to be adapted
    to e.g. reflect the already applied scaling. Missing was to adapt
    a set clip polyPolygon to be synchronized with the new RenderState
    transformation.
    
    Change-Id: If760a8076e016a6dcf306db71971f1fd2fef7017
    Reviewed-on: https://gerrit.libreoffice.org/22720
    Reviewed-by: Thorsten Behrens <Thorsten.Behrens at CIB.de>
    Tested-by: Thorsten Behrens <Thorsten.Behrens at CIB.de>

diff --git a/cppcanvas/source/mtfrenderer/transparencygroupaction.cxx b/cppcanvas/source/mtfrenderer/transparencygroupaction.cxx
index 52c94b7..a8f61f2 100644
--- a/cppcanvas/source/mtfrenderer/transparencygroupaction.cxx
+++ b/cppcanvas/source/mtfrenderer/transparencygroupaction.cxx
@@ -46,6 +46,7 @@
 #include <basegfx/matrix/b2dhommatrix.hxx>
 #include <basegfx/tuple/b2dtuple.hxx>
 #include <basegfx/tools/canvastools.hxx>
+#include <basegfx/matrix/b2dhommatrixtools.hxx>
 
 #include <boost/noncopyable.hpp>
 
@@ -373,6 +374,15 @@ namespace cppcanvas
                 rendering::RenderState aLocalState( maState );
                 ::canvas::tools::setRenderStateTransform(aLocalState, aTransform);
 
+                if(aLocalState.Clip.is())
+                {
+                    // tdf#95709
+                    // Adjust renderstate clip to modified scale from above
+                    ::basegfx::B2DPolyPolygon aClip = ::basegfx::unotools::b2DPolyPolygonFromXPolyPolygon2D(aLocalState.Clip);
+                    aClip.transform(basegfx::tools::createScaleB2DHomMatrix(aScale));
+                    aLocalState.Clip = ::basegfx::unotools::xPolyPolygonFromB2DPolyPolygon(mpCanvas->getUNOCanvas()->getDevice(), aClip);
+                }
+
 #if OSL_DEBUG_LEVEL > 2
                 aLocalState.Clip.clear();
                 aLocalState.DeviceColor =