MCGR: support ColorSteps in emf export

Change-Id: I7a784587dd86efee0934fdead26f615ba7f396e2
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/147960
Tested-by: Jenkins
Reviewed-by: Armin Le Grand <Armin.Le.Grand@me.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/drawinglayer/source/processor2d/vclmetafileprocessor2d.cxx b/drawinglayer/source/processor2d/vclmetafileprocessor2d.cxx
index d2f4a4cc08c5..2f9f75369207 100644
--- a/drawinglayer/source/processor2d/vclmetafileprocessor2d.cxx
+++ b/drawinglayer/source/processor2d/vclmetafileprocessor2d.cxx
@@ -2006,6 +2006,15 @@ void VclMetafileProcessor2D::processPolyPolygonGradientPrimitive2D(
         return;
     }
 
+    if (!rGradientCandidate.getFillGradient().getColorSteps().empty())
+    {
+        // MCGR: if we have COlorSteps, do not try to fallbacl to old VCL-Gradient,
+        // that will *not* be capable of representing this properly. Use the
+        // correct decomposition instead
+        process(rGradientCandidate);
+        return;
+    }
+
     // #i112245# Metafiles use tools Polygon and are not able to have more than 65535 points
     // per polygon. Split polygon until there are less than that
     fillPolyPolygonNeededToBeSplit(aLocalPolyPolygon);