drawinglayer/source/attribute/strokeattribute.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
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   9  * This file incorporates work covered by the following license notice:
  10  *
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  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 <drawinglayer/attribute/strokeattribute.hxx>
  21 #include <numeric>
  22
  23
  24 namespace drawinglayer::attribute
  25 {
  26         class ImpStrokeAttribute
  27         {
  28         public:
  29             // data definitions
  30             std::vector< double >                     maDotDashArray;         // array of double which defines the dot-dash pattern
  31             double                                      mfFullDotDashLen;       // sum of maDotDashArray (for convenience)
  32
  33             ImpStrokeAttribute(
  34                 std::vector< double >&& rDotDashArray,
  35                 double fFullDotDashLen)
  36             :   maDotDashArray(std::move(rDotDashArray)),
  37                 mfFullDotDashLen(fFullDotDashLen)
  38             {
  39             }
  40
  41             ImpStrokeAttribute()
  42             :   mfFullDotDashLen(0.0)
  43             {
  44             }
  45
  46             // data read access
  47             const std::vector< double >& getDotDashArray() const { return maDotDashArray; }
  48             double getFullDotDashLen() const
  49             {
  50                 if(0.0 == mfFullDotDashLen && !maDotDashArray.empty())
  51                 {
  52                     // calculate length on demand
  53                     const double fAccumulated(std::accumulate(maDotDashArray.begin(), maDotDashArray.end(), 0.0));
  54                     const_cast< ImpStrokeAttribute* >(this)->mfFullDotDashLen = fAccumulated;
  55                 }
  56
  57                 return mfFullDotDashLen;
  58             }
  59
  60             bool operator==(const ImpStrokeAttribute& rCandidate) const
  61             {
  62                 return (getDotDashArray() == rCandidate.getDotDashArray()
  63                     && getFullDotDashLen() == rCandidate.getFullDotDashLen());
  64             }
  65         };
  66
  67         namespace
  68         {
  69             StrokeAttribute::ImplType& theGlobalDefault()
  70             {
  71                 static StrokeAttribute::ImplType SINGLETON;
  72                 return SINGLETON;
  73             }
  74         }
  75
  76         StrokeAttribute::StrokeAttribute(
  77             std::vector< double >&& rDotDashArray,
  78             double fFullDotDashLen)
  79         :   mpStrokeAttribute(ImpStrokeAttribute(
  80                 std::move(rDotDashArray), fFullDotDashLen))
  81         {
  82         }
  83
  84         StrokeAttribute::StrokeAttribute()
  85         :   mpStrokeAttribute(theGlobalDefault())
  86         {
  87         }
  88
  89         StrokeAttribute::StrokeAttribute(const StrokeAttribute&) = default;
  90
  91         StrokeAttribute::StrokeAttribute(StrokeAttribute&&) = default;
  92
  93         StrokeAttribute::~StrokeAttribute() = default;
  94
  95         bool StrokeAttribute::isDefault() const
  96         {
  97             return mpStrokeAttribute.same_object(theGlobalDefault());
  98         }
  99
 100         StrokeAttribute& StrokeAttribute::operator=(const StrokeAttribute&) = default;
 101
 102         StrokeAttribute& StrokeAttribute::operator=(StrokeAttribute&&) = default;
 103
 104         bool StrokeAttribute::operator==(const StrokeAttribute& rCandidate) const
 105         {
 106             // tdf#87509 default attr is always != non-default attr, even with same values
 107             if(rCandidate.isDefault() != isDefault())
 108                 return false;
 109
 110             return rCandidate.mpStrokeAttribute == mpStrokeAttribute;
 111         }
 112
 113         const std::vector< double >& StrokeAttribute::getDotDashArray() const
 114         {
 115             return mpStrokeAttribute->getDotDashArray();
 116         }
 117
 118         double StrokeAttribute::getFullDotDashLen() const
 119         {
 120             return mpStrokeAttribute->getFullDotDashLen();
 121         }
 122
 123 } // end of namespace
 124
 125 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */