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.
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   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 <vcl/outdev.hxx>
  23 #include <basegfx/matrix/b2dhommatrix.hxx>
  24 #include <tools/gen.hxx>
  25
  26 // for SOLARIS compiler include of algorithm part of _STL is necessary to
  27 // get access to basic algos like ::std::find
  28 #include <algorithm>
  29
  30 #include <drawinglayer/processor2d/hittestprocessor2d.hxx>
  31
  32 //////////////////////////////////////////////////////////////////////////////
  33
  34 namespace sdr
  35 {
  36     namespace overlay
  37     {
  38         OverlayObjectList::~OverlayObjectList()
  39         {
  40             clear();
  41         }
  42
  43         void OverlayObjectList::clear()
  44         {
  45             OverlayObjectVector::iterator aStart(maVector.begin());
  46
  47             for(; aStart != maVector.end(); ++aStart)
  48             {
  49                 ::sdr::overlay::OverlayObject* pCandidate = *aStart;
  50
  51                 if(pCandidate->getOverlayManager())
  52                 {
  53                     pCandidate->getOverlayManager()->remove(*pCandidate);
  54                 }
  55
  56                 delete pCandidate;
  57             }
  58
  59             maVector.clear();
  60         }
  61
  62         bool OverlayObjectList::isHitLogic(const basegfx::B2DPoint& rLogicPosition, double fLogicTolerance) const
  63         {
  64             if(!maVector.empty())
  65             {
  66                 OverlayObjectVector::const_iterator aStart(maVector.begin());
  67                 sdr::overlay::OverlayObject* pFirst = *aStart;
  68                 OSL_ENSURE(pFirst, "Corrupt OverlayObjectList (!)");
  69                 OverlayManager* pManager = pFirst->getOverlayManager();
  70
  71                 if(pManager)
  72                 {
  73                     if(0.0 == fLogicTolerance)
  74                     {
  75                         const Size aSizeLogic(pManager->getOutputDevice().PixelToLogic(
  76                             Size(DEFAULT_VALUE_FOR_HITTEST_PIXEL, DEFAULT_VALUE_FOR_HITTEST_PIXEL)));
  77                         fLogicTolerance = aSizeLogic.Width();
  78                     }
  79
  80                     const drawinglayer::geometry::ViewInformation2D aViewInformation2D(pManager->getCurrentViewInformation2D());
  81                     drawinglayer::processor2d::HitTestProcessor2D aHitTestProcessor2D(
  82                         aViewInformation2D,
  83                         rLogicPosition,
  84                         fLogicTolerance,
  85                         false);
  86
  87                     for(; aStart != maVector.end(); ++aStart)
  88                     {
  89                         sdr::overlay::OverlayObject* pCandidate = *aStart;
  90                         OSL_ENSURE(pCandidate, "Corrupt OverlayObjectList (!)");
  91
  92                         if(pCandidate->isHittable())
  93                         {
  94                             const drawinglayer::primitive2d::Primitive2DSequence& rSequence = pCandidate->getOverlayObjectPrimitive2DSequence();
  95
  96                             if(rSequence.hasElements())
  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, sal_uInt32 nDiscreteTolerance) const
 114         {
 115             if(!maVector.empty())
 116             {
 117                 OverlayObjectVector::const_iterator aStart(maVector.begin());
 118                 sdr::overlay::OverlayObject* pCandidate = *aStart;
 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                     if(nDiscreteTolerance)
 127                     {
 128                         const Size aSizeLogic(pManager->getOutputDevice().PixelToLogic(Size(nDiscreteTolerance, nDiscreteTolerance)));
 129                         return isHitLogic(aPosition, (double)aSizeLogic.Width());
 130                     }
 131                     else
 132                     {
 133                         return isHitLogic(aPosition);
 134                     }
 135                 }
 136             }
 137
 138             return false;
 139         }
 140
 141         basegfx::B2DRange OverlayObjectList::getBaseRange() const
 142         {
 143             basegfx::B2DRange aRetval;
 144
 145             if(!maVector.empty())
 146             {
 147                 OverlayObjectVector::const_iterator aStart(maVector.begin());
 148
 149                 for(; aStart != maVector.end(); ++aStart)
 150                 {
 151                     ::sdr::overlay::OverlayObject* pCandidate = *aStart;
 152                     aRetval.expand(pCandidate->getBaseRange());
 153                 }
 154             }
 155
 156             return aRetval;
 157         }
 158     } // end of namespace overlay
 159 } // end of namespace sdr
 160
 161 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */