1 files changed, 134 insertions, 0 deletions
diff --git a/drawinglayer/source/tools/emfpregion.cxx b/drawinglayer/source/tools/emfpregion.cxx
new file mode 100644
index 000000000..9fcced337
--- /dev/null
+++ b/drawinglayer/source/tools/emfpregion.cxx
@@ -0,0 +1,134 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * 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 .
+ */
+
+#include <basegfx/point/b2dpoint.hxx>
+#include <basegfx/range/b2drectangle.hxx>
+#include <basegfx/polygon/b2dpolygon.hxx>
+#include <basegfx/polygon/b2dpolygontools.hxx>
+#include <basegfx/polygon/b2dpolypolygon.hxx>
+#include <sal/log.hxx>
+#include "emfpregion.hxx"
+#include "emfppath.hxx"
+
+namespace emfplushelper
+{
+    EMFPRegion::EMFPRegion()
+    {
+    }
+
+    EMFPRegion::~EMFPRegion()
+    {
+    }
+
+    ::basegfx::B2DPolyPolygon EMFPRegion::ReadRegionNode(SvStream& s, EmfPlusHelperData& rR)
+    {
+        // Regions are specified as a binary tree of region nodes, and each node must either be a terminal node
+        // (RegionNodeDataTypeRect, RegionNodeDataTypePath, RegionNodeDataTypeEmpty, RegionNodeDataTypeInfinite)
+        // or specify one or two child nodes
+        // (RegionNodeDataTypeAnd, RegionNodeDataTypeOr, RegionNodeDataTypeXor,
+        // RegionNodeDataTypeExclude, RegionNodeDataTypeComplement).
+        sal_uInt32 dataType;
+        ::basegfx::B2DPolyPolygon polygon;
+        s.ReadUInt32(dataType);
+        SAL_INFO("drawinglayer.emf", "EMF+\t Region node data type 0x" << std::hex << dataType << std::dec);
+
+        switch (dataType)
+        {
+        case RegionNodeDataTypeAnd: // CombineModeIntersect
+        case RegionNodeDataTypeOr: // CombineModeUnion
+        case RegionNodeDataTypeXor: // CombineModeXOR
+        case RegionNodeDataTypeExclude: // CombineModeExclude
+        case RegionNodeDataTypeComplement: // CombineModeComplement
+        {
+            ::basegfx::B2DPolyPolygon leftPolygon = ReadRegionNode(s, rR);
+            ::basegfx::B2DPolyPolygon rightPolygon = ReadRegionNode(s, rR);
+            polygon = EmfPlusHelperData::combineClip(leftPolygon, dataType, rightPolygon);
+            break;
+        }
+        case RegionNodeDataTypeRect:
+        {
+            float dx, dy, dw, dh;
+            s.ReadFloat(dx).ReadFloat(dy).ReadFloat(dw).ReadFloat(dh);
+            SAL_INFO("drawinglayer.emf", "EMF+\t\t RegionNodeDataTypeRect x:" << dx << ", y:" << dy <<
+                     ", width:" << dw << ", height:" << dh);
+
+            const ::basegfx::B2DPoint mappedStartPoint(rR.Map(dx, dy));
+            const ::basegfx::B2DPoint mappedEndPoint(rR.Map(dx + dw, dy + dh));
+            polygon = ::basegfx::B2DPolyPolygon(
+                    ::basegfx::utils::createPolygonFromRect(
+                        ::basegfx::B2DRectangle(
+                            mappedStartPoint.getX(),
+                            mappedStartPoint.getY(),
+                            mappedEndPoint.getX(),
+                            mappedEndPoint.getY())));
+            break;
+        }
+        case RegionNodeDataTypePath:
+        {
+            sal_Int32 pathLength;
+            s.ReadInt32(pathLength);
+            SAL_INFO("drawinglayer.emf", "EMF+\t\t RegionNodeDataTypePath, Path Length: " << pathLength << " bytes");
+
+            sal_uInt32 header, pathFlags;
+            sal_Int32 points;
+
+            s.ReadUInt32(header).ReadInt32(points).ReadUInt32(pathFlags);
+            SAL_INFO("drawinglayer.emf", "EMF+\t\t header: 0x" << std::hex << header <<
+                     " points: " << std::dec << points << " additional flags: 0x" << std::hex << pathFlags << std::dec);
+
+            EMFPPath path(points);
+            path.Read(s, pathFlags);
+            polygon = path.GetPolygon(rR);
+            break;
+        }
+        case RegionNodeDataTypeEmpty:
+        {
+            SAL_INFO("drawinglayer.emf", "EMF+\t\t RegionNodeDataTypeEmpty");
+            SAL_WARN("drawinglayer.emf", "EMF+\t\t TODO we need to set empty polygon here");
+            polygon = ::basegfx::B2DPolyPolygon();
+
+            break;
+        }
+        case RegionNodeDataTypeInfinite:
+        {
+            SAL_INFO("drawinglayer.emf", "EMF+\t\t RegionNodeDataTypeInfinite");
+            polygon = ::basegfx::B2DPolyPolygon();
+            break;
+        }
+        default:
+        {
+            SAL_WARN("drawinglayer.emf", "EMF+\t\t Unhandled region type: 0x" << std::hex << dataType << std::dec);
+            polygon = ::basegfx::B2DPolyPolygon();
+        }
+        }
+        return polygon;
+    }
+
+    void EMFPRegion::ReadRegion(SvStream& s, EmfPlusHelperData& rR)
+    {
+        sal_uInt32 header, count;
+        s.ReadUInt32(header).ReadUInt32(count);
+        // An array should be RegionNodeCount+1 of EmfPlusRegionNode objects.
+        SAL_INFO("drawinglayer.emf", "EMF+\t version: 0x" << std::hex << header << std::dec << ", region node count: " << count);
+
+        regionPolyPolygon = ReadRegionNode(s, rR);
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */