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
  27 class Point;
  28 namespace tools { class Rectangle; }
  29 class SvStream;
  30 namespace tools {
  31     class Polygon;
  32     class PolyPolygon;
  33 }
  34 class OutputDevice;
  35
  36 #define XPOLYPOLY_APPEND     0xFFFF
  37 #define XPOLY_APPEND         0xFFFF
  38
  39
  40 // Class XPolygon has a point-array and a flag-array, which contains information about a particular point
  41
  42 class ImpXPolygon;
  43
  44 class SVX_DLLPUBLIC XPolygon final
  45 {
  46     o3tl::cow_wrapper< ImpXPolygon > pImpXPolygon;
  47
  48     // auxiliary functions for Bezier conversion
  49     void    SubdivideBezier(sal_uInt16 nPos, bool bCalcFirst, double fT);
  50     void    GenBezArc(const Point& rCenter, long nRx, long nRy,
  51                       long nXHdl, long nYHdl, sal_uInt16 nStart, sal_uInt16 nEnd,
  52                       sal_uInt16 nQuad, sal_uInt16 nFirst);
  53     static bool CheckAngles(sal_uInt16& nStart, sal_uInt16 nEnd, sal_uInt16& nA1, sal_uInt16& nA2);
  54
  55 public:
  56     XPolygon( sal_uInt16 nSize=16 );
  57     XPolygon( const XPolygon& );
  58     XPolygon( XPolygon&& );
  59     XPolygon( const tools::Polygon& rPoly );
  60     XPolygon( const tools::Rectangle& rRect, long nRx = 0, long nRy = 0 );
  61     XPolygon( const Point& rCenter, long nRx, long nRy,
  62               sal_uInt16 nStartAngle = 0, sal_uInt16 nEndAngle = 3600,
  63               bool bClose = true );
  64
  65     ~XPolygon();
  66
  67     sal_uInt16      GetSize() const;
  68
  69     void        SetPointCount( sal_uInt16 nPoints );
  70     sal_uInt16      GetPointCount() const;
  71
  72     void        Insert( sal_uInt16 nPos, const Point& rPt, PolyFlags eFlags );
  73     void        Insert( sal_uInt16 nPos, const XPolygon& rXPoly );
  74     void        Remove( sal_uInt16 nPos, sal_uInt16 nCount );
  75     void        Move( long nHorzMove, long nVertMove );
  76     tools::Rectangle   GetBoundRect() const;
  77
  78     const Point&    operator[]( sal_uInt16 nPos ) const;
  79           Point&    operator[]( sal_uInt16 nPos );
  80     XPolygon&       operator=( const XPolygon& );
  81     XPolygon&       operator=( XPolygon&& );
  82     bool            operator==( const XPolygon& rXPoly ) const;
  83
  84     PolyFlags  GetFlags( sal_uInt16 nPos ) const;
  85     void        SetFlags( sal_uInt16 nPos, PolyFlags eFlags );
  86     bool        IsControl(sal_uInt16 nPos) const;
  87     bool        IsSmooth(sal_uInt16 nPos) const;
  88
  89     // distance between two points
  90     double  CalcDistance(sal_uInt16 nP1, sal_uInt16 nP2);
  91
  92     // Bezier conversion
  93     void CalcSmoothJoin(sal_uInt16 nCenter, sal_uInt16 nDrag, sal_uInt16 nPnt);
  94     void CalcTangent(sal_uInt16 nCenter, sal_uInt16 nPrev, sal_uInt16 nNext);
  95     void PointsToBezier(sal_uInt16 nFirst);
  96
  97     // transformations
  98     void Scale(double fSx, double fSy);
  99     void Distort(const tools::Rectangle& rRefRect, const XPolygon& rDistortedRect);
 100
 101     // #116512# convert to basegfx::B2DPolygon and return
 102     basegfx::B2DPolygon getB2DPolygon() const;
 103
 104     // #116512# constructor to convert from basegfx::B2DPolygon
 105      // #i76339# made explicit
 106      explicit XPolygon(const basegfx::B2DPolygon& rPolygon);
 107 };
 108
 109 // Class XPolyPolygon; like PolyPolygon, composed of XPolygons instead of Polygons
 110
 111 class ImpXPolyPolygon;
 112
 113 class SVX_DLLPUBLIC XPolyPolygon final
 114 {
 115     o3tl::cow_wrapper< ImpXPolyPolygon > pImpXPolyPolygon;
 116
 117 public:
 118                     XPolyPolygon();
 119                     XPolyPolygon( const XPolyPolygon& );
 120                     XPolyPolygon( XPolyPolygon&& );
 121
 122                     ~XPolyPolygon();
 123
 124     void            Insert( XPolygon&& rXPoly );
 125     void            Insert( const XPolyPolygon& rXPoly );
 126     void            Remove( sal_uInt16 nPos );
 127     const XPolygon& GetObject( sal_uInt16 nPos ) const;
 128
 129     void            Clear();
 130     sal_uInt16          Count() const;
 131
 132     tools::Rectangle       GetBoundRect() const;
 133
 134     const XPolygon& operator[]( sal_uInt16 nPos ) const
 135                         { return GetObject( nPos ); }
 136     XPolygon&       operator[]( sal_uInt16 nPos );
 137
 138     XPolyPolygon&   operator=( const XPolyPolygon& );
 139     XPolyPolygon&   operator=( XPolyPolygon&& );
 140
 141     // transformations
 142     void Distort(const tools::Rectangle& rRefRect, const XPolygon& rDistortedRect);
 143
 144     // #116512# convert to basegfx::B2DPolyPolygon and return
 145     basegfx::B2DPolyPolygon getB2DPolyPolygon() const;
 146
 147     // #116512# constructor to convert from basegfx::B2DPolyPolygon
 148      // #i76339# made explicit
 149      explicit XPolyPolygon(const basegfx::B2DPolyPolygon& rPolyPolygon);
 150 };
 151
 152 #endif // INCLUDED_SVX_XPOLY_HXX
 153
 154 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */