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