1 files changed, 104 insertions, 0 deletions
diff --git a/sw/source/core/crsr/overlayrangesoutline.cxx b/sw/source/core/crsr/overlayrangesoutline.cxx
new file mode 100644
index 000000000..aff0f9d8b
--- /dev/null
+++ b/sw/source/core/crsr/overlayrangesoutline.cxx
@@ -0,0 +1,104 @@
+/* -*- 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 "overlayrangesoutline.hxx"
+#include <svx/sdr/overlay/overlaymanager.hxx>
+#include <basegfx/polygon/b2dpolygon.hxx>
+#include <basegfx/polygon/b2dpolypolygon.hxx>
+#include <basegfx/polygon/b2dpolygontools.hxx>
+#include <basegfx/polygon/b2dpolypolygoncutter.hxx>
+#include <drawinglayer/primitive2d/PolyPolygonHairlinePrimitive2D.hxx>
+
+namespace
+{
+    // combine ranges geometrically to a single, ORed polygon
+    basegfx::B2DPolyPolygon impCombineRangesToPolyPolygon(const std::vector< basegfx::B2DRange >& rRanges)
+    {
+        const sal_uInt32 nCount(rRanges.size());
+        basegfx::B2DPolyPolygon aRetval;
+
+        for(sal_uInt32 a(0); a < nCount; a++)
+        {
+            const basegfx::B2DPolygon aDiscretePolygon(basegfx::utils::createPolygonFromRect(rRanges[a]));
+
+            if(0 == a)
+            {
+                aRetval.append(aDiscretePolygon);
+            }
+            else
+            {
+                aRetval = basegfx::utils::solvePolygonOperationOr(aRetval, basegfx::B2DPolyPolygon(aDiscretePolygon));
+            }
+        }
+
+        return aRetval;
+    }
+}
+
+namespace sw::overlay
+{
+        drawinglayer::primitive2d::Primitive2DContainer OverlayRangesOutline::createOverlayObjectPrimitive2DSequence()
+        {
+            drawinglayer::primitive2d::Primitive2DContainer aRetval;
+            const sal_uInt32 nCount(getRanges().size());
+
+            if( nCount )
+            {
+                const basegfx::BColor aRGBColor(getBaseColor().getBColor());
+                const basegfx::B2DPolyPolygon aPolyPolygon(impCombineRangesToPolyPolygon(getRanges()));
+                const drawinglayer::primitive2d::Primitive2DReference aOutline(
+                    new drawinglayer::primitive2d::PolyPolygonHairlinePrimitive2D(
+                    aPolyPolygon,
+                    aRGBColor));
+
+                aRetval.resize(1);
+                aRetval[0] = aOutline;
+            }
+
+            return aRetval;
+        }
+
+        OverlayRangesOutline::OverlayRangesOutline(
+            const Color& rColor,
+            std::vector< basegfx::B2DRange >&& rRanges )
+            : sdr::overlay::OverlayObject(rColor)
+            , maRanges(std::move(rRanges))
+        {
+            // no AA for highlight overlays
+            allowAntiAliase(false);
+        }
+
+        OverlayRangesOutline::~OverlayRangesOutline()
+        {
+            if( getOverlayManager() )
+            {
+                getOverlayManager()->remove(*this);
+            }
+        }
+
+        void OverlayRangesOutline::setRanges(std::vector< basegfx::B2DRange >&& rNew)
+        {
+            if(rNew != maRanges)
+            {
+                maRanges = std::move(rNew);
+                objectChange();
+            }
+        }
+} // end of namespace sw::overlay
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */