Resolves: #i121267# added support for taking clipping into account...

for metafile-based exporters to vector formats

(cherry picked from commit 229a79b97110c11ef21b7b99ffc768254ca01d96)

Conflicts:
basegfx/inc/basegfx/polygon/b2dpolypolygontools.hxx
filter/source/flash/swfexporter.cxx
filter/source/graphicfilter/eos2met/eos2met.cxx
svtools/source/filter/wmf/wmf.cxx
vcl/Package_inc.mk

Remove unused variable to prevent compile warnings.

(cherry picked from commit 60d19c1602e4fec740624fd20a7bfd39707297e4)

Change-Id: Iaeb02d7321bea2890cf4e969f1d45d58deef5584
106285f06a21f4f39f34c6755d12ac6cd4196a7f

2 files changed, 49 insertions, 0 deletions

diff --git a/include/basegfx/polygon/b2dpolypolygontools.hxx b/include/basegfx/polygon/b2dpolypolygontools.hxx
index 29ae3e042133..01c1306de82d 100644
--- a/include/basegfx/polygon/b2dpolypolygontools.hxx
+++ b/include/basegfx/polygon/b2dpolypolygontools.hxx
@@ -78,6 +78,12 @@ namespace basegfx
         */
         BASEGFX_DLLPUBLIC B2DRange getRange(const B2DPolyPolygon& rCandidate);
 
+        // get signed area of polygon
+        BASEGFX_DLLPUBLIC double getSignedArea(const B2DPolyPolygon& rCandidate);
+
+        // get area of polygon
+        BASEGFX_DLLPUBLIC double getArea(const B2DPolyPolygon& rCandidate);
+
         /** Apply given LineDashing to given polyPolygon
 
             For a description see applyLineDashing in b2dpolygontoos.hxx
diff --git a/include/vcl/gdimetafiletools.hxx b/include/vcl/gdimetafiletools.hxx
new file mode 100644
index 000000000000..f6f3cfd870a2
--- /dev/null
+++ b/include/vcl/gdimetafiletools.hxx
@@ -0,0 +1,43 @@
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+#ifndef _SV_GDIMETAFILETOOLS_HXX
+#define _SV_GDIMETAFILETOOLS_HXX
+
+#include <vcl/gdimtf.hxx>
+
+//////////////////////////////////////////////////////////////////////////////
+// #i121267# Added tooling to be able to support old exporters which are based on
+// metafiles as graphic content, but do not implement using the contained clip
+// regions.
+// The given metafile will internall yclip it's graphic content against the
+// included clip regions so that it is safe to ignore clip actions there. This
+// is not done completely, but implemented and extended as needed (on demand)
+// since all this is a workarund; the better and long term solution will be to
+// reimplement these im/exports to use primitives and not metafiles as bese
+// information.
+
+void VCL_DLLPUBLIC clipMetafileContentAgainstOwnRegions(GDIMetaFile& rSource);
+
+//////////////////////////////////////////////////////////////////////////////
+// Allow to check if a Metafile contains clipping or not
+
+bool VCL_DLLPUBLIC usesClipActions(const GDIMetaFile& rSource);
+
+//////////////////////////////////////////////////////////////////////////////
+
+#endif // _SV_GDIMETAFILETOOLS_HXX