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/polygon/b2dpolypolygon.hxx>
  25
  26 #include <algorithm>
  27 #include <vector>
  28
  29 namespace basegfx
  30 {
  31     class ImplB2DPolyRange
  32     {
  33     public:
  34         ImplB2DPolyRange() :
  35             maBounds(),
  36             maRanges(),
  37             maOrient()
  38         {}
  39
  40         bool operator==(const ImplB2DPolyRange& rRHS) const
  41         {
  42             return maRanges == rRHS.maRanges && maOrient == rRHS.maOrient;
  43         }
  44
  45         sal_uInt32 count() const
  46         {
  47             return maRanges.size();
  48         }
  49
  50         B2DPolyRange::ElementType getElement(sal_uInt32 nIndex) const
  51         {
  52             return std::make_tuple(maRanges[nIndex], maOrient[nIndex]);
  53         }
  54
  55         void appendElement(const B2DRange& rRange, B2VectorOrientation eOrient, sal_uInt32 nCount)
  56         {
  57             maRanges.insert(maRanges.end(), nCount, rRange);
  58             maOrient.insert(maOrient.end(), nCount, eOrient);
  59             maBounds.expand(rRange);
  60         }
  61
  62         void clear()
  63         {
  64             std::vector<B2DRange> aTmpRanges;
  65             std::vector<B2VectorOrientation> aTmpOrient;
  66
  67             maRanges.swap(aTmpRanges);
  68             maOrient.swap(aTmpOrient);
  69
  70             maBounds.reset();
  71         }
  72
  73         bool overlaps( const B2DRange& rRange ) const
  74         {
  75             if( !maBounds.overlaps( rRange ) )
  76                 return false;
  77
  78             const std::vector<B2DRange>::const_iterator aEnd( maRanges.end() );
  79             return std::any_of( maRanges.begin(),
  80                                  aEnd,
  81                                  [&rRange](const B2DRange& aRange) { return aRange.overlaps(rRange); } );
  82         }
  83
  84         B2DPolyPolygon solveCrossovers() const
  85         {
  86             return utils::solveCrossovers(maRanges,maOrient);
  87         }
  88
  89         void transform(const basegfx::B2DHomMatrix& rTranslate)
  90         {
  91             maBounds.transform(rTranslate);
  92             for (auto &a : maRanges)
  93                 a.transform(rTranslate);
  94         }
  95
  96     private:
  97         B2DRange                         maBounds;
  98         std::vector<B2DRange>            maRanges;
  99         std::vector<B2VectorOrientation> maOrient;
 100     };
 101
 102     B2DPolyRange::B2DPolyRange() = default;
 103
 104     B2DPolyRange::~B2DPolyRange() = default;
 105
 106     B2DPolyRange::B2DPolyRange( const B2DPolyRange& ) = default;
 107
 108     B2DPolyRange& B2DPolyRange::operator=( const B2DPolyRange& ) = default;
 109
 110     bool B2DPolyRange::operator==(const B2DPolyRange& rRange) const
 111     {
 112         if(mpImpl.same_object(rRange.mpImpl))
 113             return true;
 114
 115         return ((*mpImpl) == (*rRange.mpImpl));
 116     }
 117
 118     bool B2DPolyRange::operator!=(const B2DPolyRange& rRange) const
 119     {
 120         return !(*this == rRange);
 121     }
 122
 123     sal_uInt32 B2DPolyRange::count() const
 124     {
 125         return mpImpl->count();
 126     }
 127
 128     B2DPolyRange::ElementType B2DPolyRange::getElement(sal_uInt32 nIndex) const
 129     {
 130         return mpImpl->getElement(nIndex);
 131     }
 132
 133     void B2DPolyRange::appendElement(const B2DRange& rRange, B2VectorOrientation eOrient, sal_uInt32 nCount)
 134     {
 135         mpImpl->appendElement(rRange, eOrient, nCount );
 136     }
 137
 138     void B2DPolyRange::clear()
 139     {
 140         mpImpl->clear();
 141     }
 142
 143     bool B2DPolyRange::overlaps( const B2DRange& rRange ) const
 144     {
 145         return mpImpl->overlaps(rRange);
 146     }
 147
 148     void B2DPolyRange::transform(const basegfx::B2DHomMatrix& rTranslate)
 149     {
 150         mpImpl->transform(rTranslate);
 151     }
 152
 153     B2DPolyPolygon B2DPolyRange::solveCrossovers() const
 154     {
 155         return mpImpl->solveCrossovers();
 156     }
 157 } // end of namespace basegfx
 158
 159 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */