svx/source/sdr/overlay/overlayobjectlist.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <svx/sdr/overlay/overlayobjectlist.hxx>
  21 #include <svx/sdr/overlay/overlaymanager.hxx>
  22 #include <svx/svdmodel.hxx>
  23 #include <vcl/outdev.hxx>
  24 #include <basegfx/matrix/b2dhommatrix.hxx>
  25 #include <tools/gen.hxx>
  26
  27 #include <drawinglayer/processor2d/hittestprocessor2d.hxx>
  28 #include <comphelper/lok.hxx>
  29
  30 #define DEFAULT_VALUE_FOR_HITTEST_PIXEL         (2)
  31 #define DEFAULT_VALUE_FOR_HITTEST_TWIP          (30)
  32
  33 namespace sdr
  34 {
  35     namespace overlay
  36     {
  37         OverlayObjectList::~OverlayObjectList()
  38         {
  39             clear();
  40         }
  41
  42         void OverlayObjectList::clear()
  43         {
  44             for(auto & pCandidate : maVector)
  45             {
  46                 if(pCandidate->getOverlayManager())
  47                     pCandidate->getOverlayManager()->remove(*pCandidate);
  48             }
  49             maVector.clear();
  50         }
  51
  52         void OverlayObjectList::append(std::unique_ptr<OverlayObject> pOverlayObject)
  53         {
  54             assert(pOverlayObject && "tried to add invalid OverlayObject to OverlayObjectList");
  55             maVector.push_back(std::move(pOverlayObject));
  56         }
  57
  58         bool OverlayObjectList::isHitLogic(const basegfx::B2DPoint& rLogicPosition, double fLogicTolerance) const
  59         {
  60             if(!maVector.empty())
  61             {
  62                 OverlayObject* pFirst = maVector.front().get();
  63                 OverlayManager* pManager = pFirst->getOverlayManager();
  64
  65                 if(pManager)
  66                 {
  67                     if(0.0 == fLogicTolerance)
  68                     {
  69                         Size aSizeLogic(pManager->getOutputDevice().PixelToLogic(
  70                             Size(DEFAULT_VALUE_FOR_HITTEST_PIXEL, DEFAULT_VALUE_FOR_HITTEST_PIXEL)));
  71
  72                         // When tiled rendering, we always work in logic units, use the non-pixel default.
  73                         if (comphelper::LibreOfficeKit::isActive())
  74                         {
  75                             aSizeLogic = Size(DEFAULT_VALUE_FOR_HITTEST_TWIP, DEFAULT_VALUE_FOR_HITTEST_TWIP);
  76                             if (pManager->getOutputDevice().GetMapMode().GetMapUnit() == MapUnit::Map100thMM)
  77                                 aSizeLogic = OutputDevice::LogicToLogic(aSizeLogic, MapMode(MapUnit::MapTwip), MapMode(MapUnit::Map100thMM));
  78                         }
  79
  80                         fLogicTolerance = aSizeLogic.Width();
  81                     }
  82
  83                     const drawinglayer::geometry::ViewInformation2D& aViewInformation2D(pManager->getCurrentViewInformation2D());
  84                     drawinglayer::processor2d::HitTestProcessor2D aHitTestProcessor2D(
  85                         aViewInformation2D,
  86                         rLogicPosition,
  87                         fLogicTolerance,
  88                         false);
  89
  90                     for(auto & pCandidate : maVector)
  91                     {
  92                         if(pCandidate->isHittable())
  93                         {
  94                             const drawinglayer::primitive2d::Primitive2DContainer& rSequence = pCandidate->getOverlayObjectPrimitive2DSequence();
  95
  96                             if(!rSequence.empty())
  97                             {
  98                                 aHitTestProcessor2D.process(rSequence);
  99
 100                                 if(aHitTestProcessor2D.getHit())
 101                                 {
 102                                     return true;
 103                                 }
 104                             }
 105                         }
 106                     }
 107                 }
 108             }
 109
 110             return false;
 111         }
 112
 113         bool OverlayObjectList::isHitPixel(const Point& rDiscretePosition) const
 114         {
 115             sal_uInt32 nDiscreteTolerance = DEFAULT_VALUE_FOR_HITTEST_PIXEL;
 116             if(!maVector.empty())
 117             {
 118                 OverlayObject* pCandidate = maVector.front().get();
 119                 OverlayManager* pManager = pCandidate->getOverlayManager();
 120
 121                 if(pManager)
 122                 {
 123                     const Point aPosLogic(pManager->getOutputDevice().PixelToLogic(rDiscretePosition));
 124                     const basegfx::B2DPoint aPosition(aPosLogic.X(), aPosLogic.Y());
 125
 126                     const Size aSizeLogic(pManager->getOutputDevice().PixelToLogic(Size(nDiscreteTolerance, nDiscreteTolerance)));
 127                     return isHitLogic(aPosition, static_cast<double>(aSizeLogic.Width()));
 128                 }
 129             }
 130
 131             return false;
 132         }
 133
 134         basegfx::B2DRange OverlayObjectList::getBaseRange() const
 135         {
 136             basegfx::B2DRange aRetval;
 137
 138             for(auto & pCandidate : maVector)
 139             {
 140                 aRetval.expand(pCandidate->getBaseRange());
 141             }
 142
 143             return aRetval;
 144         }
 145     } // end of namespace overlay
 146 } // end of namespace sdr
 147
 148 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */