1 files changed, 144 insertions, 0 deletions
diff --git a/svx/source/sdr/overlay/overlayobjectlist.cxx b/svx/source/sdr/overlay/overlayobjectlist.cxx
new file mode 100644
index 000000000..d71f6c278
--- /dev/null
+++ b/svx/source/sdr/overlay/overlayobjectlist.cxx
@@ -0,0 +1,144 @@
+/* -*- 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 <svx/sdr/overlay/overlayobjectlist.hxx>
+#include <svx/sdr/overlay/overlaymanager.hxx>
+#include <vcl/outdev.hxx>
+#include <tools/gen.hxx>
+
+#include <drawinglayer/processor2d/hittestprocessor2d.hxx>
+#include <comphelper/lok.hxx>
+
+#define DEFAULT_VALUE_FOR_HITTEST_PIXEL         (2)
+#define DEFAULT_VALUE_FOR_HITTEST_TWIP          (30)
+
+namespace sdr::overlay
+{
+        OverlayObjectList::~OverlayObjectList()
+        {
+            clear();
+        }
+
+        void OverlayObjectList::clear()
+        {
+            for(auto & pCandidate : maVector)
+            {
+                if(pCandidate->getOverlayManager())
+                    pCandidate->getOverlayManager()->remove(*pCandidate);
+            }
+            maVector.clear();
+        }
+
+        void OverlayObjectList::append(std::unique_ptr<OverlayObject> pOverlayObject)
+        {
+            assert(pOverlayObject && "tried to add invalid OverlayObject to OverlayObjectList");
+            maVector.push_back(std::move(pOverlayObject));
+        }
+
+        bool OverlayObjectList::isHitLogic(const basegfx::B2DPoint& rLogicPosition, double fLogicTolerance) const
+        {
+            if(!maVector.empty())
+            {
+                OverlayObject* pFirst = maVector.front().get();
+                OverlayManager* pManager = pFirst->getOverlayManager();
+
+                if(pManager)
+                {
+                    if(0.0 == fLogicTolerance)
+                    {
+                        Size aSizeLogic(pManager->getOutputDevice().PixelToLogic(
+                            Size(DEFAULT_VALUE_FOR_HITTEST_PIXEL, DEFAULT_VALUE_FOR_HITTEST_PIXEL)));
+
+                        // When tiled rendering, we always work in logic units, use the non-pixel default.
+                        if (comphelper::LibreOfficeKit::isActive())
+                        {
+                            aSizeLogic = Size(DEFAULT_VALUE_FOR_HITTEST_TWIP, DEFAULT_VALUE_FOR_HITTEST_TWIP);
+                            if (pManager->getOutputDevice().GetMapMode().GetMapUnit() == MapUnit::Map100thMM)
+                                aSizeLogic = o3tl::convert(aSizeLogic, o3tl::Length::twip, o3tl::Length::mm100);
+                        }
+
+                        fLogicTolerance = aSizeLogic.Width();
+                    }
+
+                    const drawinglayer::geometry::ViewInformation2D& aViewInformation2D(pManager->getCurrentViewInformation2D());
+                    drawinglayer::processor2d::HitTestProcessor2D aHitTestProcessor2D(
+                        aViewInformation2D,
+                        rLogicPosition,
+                        fLogicTolerance,
+                        false);
+
+                    for(auto & pCandidate : maVector)
+                    {
+                        if(pCandidate->isHittable())
+                        {
+                            const drawinglayer::primitive2d::Primitive2DContainer& rSequence = pCandidate->getOverlayObjectPrimitive2DSequence();
+
+                            if(!rSequence.empty())
+                            {
+                                aHitTestProcessor2D.process(rSequence);
+
+                                if(aHitTestProcessor2D.getHit())
+                                {
+                                    return true;
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+
+            return false;
+        }
+
+        bool OverlayObjectList::isHitPixel(const Point& rDiscretePosition) const
+        {
+            constexpr sal_uInt32 nDiscreteTolerance = DEFAULT_VALUE_FOR_HITTEST_PIXEL;
+            if(!maVector.empty())
+            {
+                OverlayObject* pCandidate = maVector.front().get();
+                OverlayManager* pManager = pCandidate->getOverlayManager();
+
+                if(pManager)
+                {
+                    const Point aPosLogic(pManager->getOutputDevice().PixelToLogic(rDiscretePosition));
+                    const basegfx::B2DPoint aPosition(aPosLogic.X(), aPosLogic.Y());
+
+                    const Size aSizeLogic(pManager->getOutputDevice().PixelToLogic(Size(nDiscreteTolerance, nDiscreteTolerance)));
+                    return isHitLogic(aPosition, static_cast<double>(aSizeLogic.Width()));
+                }
+            }
+
+            return false;
+        }
+
+        basegfx::B2DRange OverlayObjectList::getBaseRange() const
+        {
+            basegfx::B2DRange aRetval;
+
+            for(auto & pCandidate : maVector)
+            {
+                aRetval.expand(pCandidate->getBaseRange());
+            }
+
+            return aRetval;
+        }
+
+} // end of namespace
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */