include/svx/xpoly.hxx

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  19 #ifndef INCLUDED_SVX_XPOLY_HXX
  20 #define INCLUDED_SVX_XPOLY_HXX
  21
  22 #include <basegfx/polygon/b2dpolypolygon.hxx>
  23 #include <svx/svxdllapi.h>
  24 #include <o3tl/cow_wrapper.hxx>
  25 #include <tools/poly.hxx>
  26 #include <tools/degree.hxx>
  27
  28 class Point;
  29 namespace tools { class Rectangle; }
  30 class SvStream;
  31 namespace tools {
  32     class Polygon;
  33     class PolyPolygon;
  34 }
  35 class OutputDevice;
  36
  37 #define XPOLYPOLY_APPEND     0xFFFF
  38 #define XPOLY_APPEND         0xFFFF
  39
  40
  41 // Class XPolygon has a point-array and a flag-array, which contains information about a particular point
  42
  43 class ImpXPolygon;
  44
  45 class SVXCORE_DLLPUBLIC XPolygon final
  46 {
  47     o3tl::cow_wrapper< ImpXPolygon > pImpXPolygon;
  48
  49     // auxiliary functions for Bezier conversion
  50     void    SubdivideBezier(sal_uInt16 nPos, bool bCalcFirst, double fT);
  51     void    GenBezArc(const Point& rCenter, tools::Long nRx, tools::Long nRy,
  52                       tools::Long nXHdl, tools::Long nYHdl, Degree100 nStart, Degree100 nEnd,
  53                       sal_uInt16 nQuad, sal_uInt16 nFirst);
  54     static bool CheckAngles(Degree100& nStart, Degree100 nEnd, Degree100& nA1, Degree100& nA2);
  55
  56 public:
  57     XPolygon( sal_uInt16 nSize=16 );
  58     XPolygon( const XPolygon& );
  59     XPolygon( XPolygon&& );
  60     XPolygon( const tools::Polygon& rPoly );
  61     XPolygon( const tools::Rectangle& rRect, tools::Long nRx = 0, tools::Long nRy = 0 );
  62     XPolygon( const Point& rCenter, tools::Long nRx, tools::Long nRy,
  63               Degree100 nStartAngle = 0_deg100, Degree100 nEndAngle = 36000_deg100,
  64               bool bClose = true );
  65
  66     ~XPolygon();
  67
  68     sal_uInt16      GetSize() const;
  69
  70     void        SetPointCount( sal_uInt16 nPoints );
  71     sal_uInt16      GetPointCount() const;
  72
  73     void        Insert( sal_uInt16 nPos, const Point& rPt, PolyFlags eFlags );
  74     void        Insert( sal_uInt16 nPos, const XPolygon& rXPoly );
  75     void        Remove( sal_uInt16 nPos, sal_uInt16 nCount );
  76     void        Move( tools::Long nHorzMove, tools::Long nVertMove );
  77     tools::Rectangle   GetBoundRect() const;
  78
  79     const Point&    operator[]( sal_uInt16 nPos ) const;
  80           Point&    operator[]( sal_uInt16 nPos );
  81     XPolygon&       operator=( const XPolygon& );
  82     XPolygon&       operator=( XPolygon&& );
  83     bool            operator==( const XPolygon& rXPoly ) const;
  84
  85     PolyFlags  GetFlags( sal_uInt16 nPos ) const;
  86     void        SetFlags( sal_uInt16 nPos, PolyFlags eFlags );
  87     bool        IsControl(sal_uInt16 nPos) const;
  88     bool        IsSmooth(sal_uInt16 nPos) const;
  89
  90     // distance between two points
  91     double  CalcDistance(sal_uInt16 nP1, sal_uInt16 nP2);
  92
  93     // Bezier conversion
  94     void CalcSmoothJoin(sal_uInt16 nCenter, sal_uInt16 nDrag, sal_uInt16 nPnt);
  95     void CalcTangent(sal_uInt16 nCenter, sal_uInt16 nPrev, sal_uInt16 nNext);
  96     void PointsToBezier(sal_uInt16 nFirst);
  97
  98     // transformations
  99     void Scale(double fSx, double fSy);
 100     void Distort(const tools::Rectangle& rRefRect, const XPolygon& rDistortedRect);
 101
 102     // #116512# convert to basegfx::B2DPolygon and return
 103     basegfx::B2DPolygon getB2DPolygon() const;
 104
 105     // #116512# constructor to convert from basegfx::B2DPolygon
 106      // #i76339# made explicit
 107      explicit XPolygon(const basegfx::B2DPolygon& rPolygon);
 108 };
 109
 110 // Class XPolyPolygon; like PolyPolygon, composed of XPolygons instead of Polygons
 111
 112 class ImpXPolyPolygon;
 113
 114 class XPolyPolygon final
 115 {
 116     o3tl::cow_wrapper< ImpXPolyPolygon > pImpXPolyPolygon;
 117
 118 public:
 119                     XPolyPolygon();
 120                     XPolyPolygon( const XPolyPolygon& );
 121                     XPolyPolygon( XPolyPolygon&& );
 122
 123                     ~XPolyPolygon();
 124
 125     void            Insert( XPolygon&& rXPoly );
 126     void            Insert( const XPolyPolygon& rXPoly );
 127     void            Remove( sal_uInt16 nPos );
 128     const XPolygon& GetObject( sal_uInt16 nPos ) const;
 129
 130     void            Clear();
 131     sal_uInt16          Count() const;
 132
 133     tools::Rectangle       GetBoundRect() const;
 134
 135     const XPolygon& operator[]( sal_uInt16 nPos ) const
 136                         { return GetObject( nPos ); }
 137     XPolygon&       operator[]( sal_uInt16 nPos );
 138
 139     XPolyPolygon&   operator=( const XPolyPolygon& );
 140     XPolyPolygon&   operator=( XPolyPolygon&& );
 141
 142     // transformations
 143     void Distort(const tools::Rectangle& rRefRect, const XPolygon& rDistortedRect);
 144
 145     // #116512# convert to basegfx::B2DPolyPolygon and return
 146     basegfx::B2DPolyPolygon getB2DPolyPolygon() const;
 147
 148     // #116512# constructor to convert from basegfx::B2DPolyPolygon
 149      // #i76339# made explicit
 150      explicit XPolyPolygon(const basegfx::B2DPolyPolygon& rPolyPolygon);
 151 };
 152
 153 #endif // INCLUDED_SVX_XPOLY_HXX
 154
 155 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */