basegfx/source/range/b2dpolyrange.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 <basegfx/range/b2dpolyrange.hxx>
  21
  22 #include <basegfx/range/b2drange.hxx>
  23 #include <basegfx/range/b2drangeclipper.hxx>
  24 #include <basegfx/tuple/b2dtuple.hxx>
  25 #include <basegfx/polygon/b2dpolypolygon.hxx>
  26
  27 #include <boost/bind.hpp>
  28 #include <boost/tuple/tuple.hpp>
  29 #include <algorithm>
  30 #include <vector>
  31
  32 namespace basegfx
  33 {
  34     class ImplB2DPolyRange
  35     {
  36     public:
  37         ImplB2DPolyRange() :
  38             maBounds(),
  39             maRanges(),
  40             maOrient()
  41         {}
  42
  43         bool operator==(const ImplB2DPolyRange& rRHS) const
  44         {
  45             return maRanges == rRHS.maRanges && maOrient == rRHS.maOrient;
  46         }
  47
  48         sal_uInt32 count() const
  49         {
  50             return maRanges.size();
  51         }
  52
  53         B2DPolyRange::ElementType getElement(sal_uInt32 nIndex) const
  54         {
  55             return boost::make_tuple(maRanges[nIndex],
  56                                      maOrient[nIndex]);
  57         }
  58
  59         void appendElement(const B2DRange& rRange, B2VectorOrientation eOrient, sal_uInt32 nCount)
  60         {
  61             maRanges.insert(maRanges.end(), nCount, rRange);
  62             maOrient.insert(maOrient.end(), nCount, eOrient);
  63             maBounds.expand(rRange);
  64         }
  65
  66         void clear()
  67         {
  68             std::vector<B2DRange> aTmpRanges;
  69             std::vector<B2VectorOrientation> aTmpOrient;
  70
  71             maRanges.swap(aTmpRanges);
  72             maOrient.swap(aTmpOrient);
  73
  74             maBounds.reset();
  75         }
  76
  77         bool overlaps( const B2DRange& rRange ) const
  78         {
  79             if( !maBounds.overlaps( rRange ) )
  80                 return false;
  81
  82             const std::vector<B2DRange>::const_iterator aEnd( maRanges.end() );
  83             return std::any_of( maRanges.begin(),
  84                                  aEnd,
  85                                  boost::bind<bool>( boost::mem_fn( &B2DRange::overlaps ),
  86                                                     _1,
  87                                                     boost::cref(rRange) ) );
  88         }
  89
  90         B2DPolyPolygon solveCrossovers() const
  91         {
  92             return tools::solveCrossovers(maRanges,maOrient);
  93         }
  94
  95     private:
  96         B2DRange                         maBounds;
  97         std::vector<B2DRange>            maRanges;
  98         std::vector<B2VectorOrientation> maOrient;
  99     };
 100
 101     B2DPolyRange::B2DPolyRange() :
 102         mpImpl()
 103     {}
 104
 105     B2DPolyRange::~B2DPolyRange()
 106     {}
 107
 108     B2DPolyRange::B2DPolyRange( const B2DPolyRange& rRange ) :
 109         mpImpl( rRange.mpImpl )
 110     {}
 111
 112     B2DPolyRange& B2DPolyRange::operator=( const B2DPolyRange& rRange )
 113     {
 114         mpImpl = rRange.mpImpl;
 115         return *this;
 116     }
 117
 118     bool B2DPolyRange::operator==(const B2DPolyRange& rRange) const
 119     {
 120         if(mpImpl.same_object(rRange.mpImpl))
 121             return true;
 122
 123         return ((*mpImpl) == (*rRange.mpImpl));
 124     }
 125
 126     bool B2DPolyRange::operator!=(const B2DPolyRange& rRange) const
 127     {
 128         return !(*this == rRange);
 129     }
 130
 131     sal_uInt32 B2DPolyRange::count() const
 132     {
 133         return mpImpl->count();
 134     }
 135
 136     B2DPolyRange::ElementType B2DPolyRange::getElement(sal_uInt32 nIndex) const
 137     {
 138         return mpImpl->getElement(nIndex);
 139     }
 140
 141     void B2DPolyRange::appendElement(const B2DRange& rRange, B2VectorOrientation eOrient, sal_uInt32 nCount)
 142     {
 143         mpImpl->appendElement(rRange, eOrient, nCount );
 144     }
 145
 146     void B2DPolyRange::clear()
 147     {
 148         mpImpl->clear();
 149     }
 150
 151     bool B2DPolyRange::overlaps( const B2DRange& rRange ) const
 152     {
 153         return mpImpl->overlaps(rRange);
 154     }
 155
 156     B2DPolyPolygon B2DPolyRange::solveCrossovers() const
 157     {
 158         return mpImpl->solveCrossovers();
 159     }
 160 } // end of namespace basegfx
 161
 162 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */