Adding new wxCanvas

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@8791 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

contrib/include/wx/canvas/polygon.h

@@ -0,0 +1,220 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        polygon.h
+// Author:      Klaas Holwerda
+// Created:     XX/XX/XX
+// Copyright:   2000 (c) Klaas Holwerda
+// Licence:     wxWindows Licence
+/////////////////////////////////////////////////////////////////////////////
+
+#ifndef __WXPOLYGON_H__
+#define __WXPOLYGON_H__
+
+#ifdef __GNUG__
+    #pragma interface "polygon.cpp"
+#endif
+
+#ifndef WX_PRECOMP
+    #include "wx/wx.h"
+#endif
+
+#include "wx/matrix.h"
+#include "wx/geometry.h"
+#include "bbox.h"
+#include "canvas.h"
+
+enum INOUTPOLY {OUTSIDE_POLY,INSIDE_POLY,ON_POLY};
+
+//----------------------------------------------------------------------------
+// wxCanvasPolygon
+//----------------------------------------------------------------------------
+
+class wxCanvasPolygon: public wxCanvasObject
+{
+public:
+    wxCanvasPolygon( int n, wxPoint2DDouble points[],  bool spline = FALSE );
+    ~wxCanvasPolygon();
+    void SetBrush( const wxBrush& brush)  { m_brush = brush; }
+    void SetPen( const wxPen& pen)        { m_pen = pen; CalcBoundingBox(); }
+
+    //set colour 1
+    //being the background color if filling with a monochrome bitmap
+    //or in case of gradient filling the starting colour for the fill
+    void SetColour1( const wxColour& fg) { m_textfg=fg;}
+    //set colour 1
+    //being the foreground color if filling with a monochrome bitmap
+    //or in case of gradient filling the ending colour for the fill
+    void SetColour2( const wxColour& bg) { m_textbg=bg;}
+    //transparent filling when bitmapbrush is monochrome
+    void SetTransParent(bool transp) { m_transp=transp;}
+    //gradient filling using lines chnging in colour from colour1 to colour2
+    void SetGradient(bool gradient, const wxPen& gpen, double distance)
+    { m_gradient=gradient;
+      m_gpen=gpen;
+      m_gdistance=distance;
+    }
+
+    double  GetPosX() { return m_points[0].m_x; }
+    double  GetPosY() { return m_points[0].m_y; }
+    void    SetPosXY( double x, double y);
+
+    void TransLate( double x, double y );
+    void CalcBoundingBox();
+
+    virtual void Render(wxTransformMatrix* cworld, int clip_x, int clip_y, int clip_width, int clip_height );
+    virtual void WriteSVG( wxTextOutputStream &stream );
+
+    wxCanvasObject* IsHitWorld( double x, double y, double margin = 0 );
+
+    INOUTPOLY PointInPolygon(const wxPoint2DDouble& P, double marge);
+
+private:
+
+    bool MoveUp(double horline, int& index, int direction);
+    void DetectCriticalPoints();
+    void FillPolygon(wxTransformMatrix* cworld, int clip_x, int clip_y, int clip_width, int clip_height );
+    wxList m_CRlist;
+    wxList m_AETlist;
+
+
+    wxBrush       m_brush;
+    wxPen         m_pen;
+    wxColour      m_textbg;
+    wxColour      m_textfg;
+
+    //if brush is of type bitmap with a mask fill with mask transparent
+    bool          m_transp;
+    bool          m_gradient;
+    wxPen         m_gpen;
+    double        m_gdistance;
+
+    bool          m_spline;
+
+    int           m_n;
+    wxPoint2DDouble* m_points;
+};
+
+//----------------------------------------------------------------------------
+// wxCanvasPolyline
+//----------------------------------------------------------------------------
+
+class wxCanvasPolyline: public wxCanvasObject
+{
+public:
+    wxCanvasPolyline(int n, wxPoint2DDouble points[]);
+    ~wxCanvasPolyline();
+    void SetPen( const wxPen& pen)    { m_pen = pen; CalcBoundingBox(); }
+
+    double  GetPosX() { return m_points[0].m_x; }
+    double  GetPosY() { return m_points[0].m_y; }
+    void    SetPosXY( double x, double y);
+
+    void TransLate( double x, double y );
+    void CalcBoundingBox();
+
+    virtual void Render(wxTransformMatrix* cworld, int clip_x, int clip_y, int clip_width, int clip_height );
+    virtual void WriteSVG( wxTextOutputStream &stream );
+
+    wxCanvasObject* IsHitWorld( double x, double y, double margin = 0 );
+
+    bool PointOnPolyline(const wxPoint2DDouble& P, double marge);
+
+private:
+
+    wxPen         m_pen;
+
+    int           m_n;
+    wxPoint2DDouble* m_points;
+};
+
+//----------------------------------------------------------------------------
+// wxCanvasPolygon
+//----------------------------------------------------------------------------
+
+class wxCanvasPolygonL: public wxCanvasObject
+{
+public:
+    wxCanvasPolygonL(wxList* points, bool spline = FALSE);
+    ~wxCanvasPolygonL();
+    void SetBrush( const wxBrush& brush)  { m_brush = brush; }
+    void SetPen( const wxPen& pen)        { m_pen = pen; CalcBoundingBox(); }
+    void SetColour1( const wxColour& fg) { m_textfg=fg;}
+    void SetColour2( const wxColour& bg) { m_textbg=bg;}
+    void SetTransParent(bool transp) { m_transp=transp;}
+
+    double  GetPosX();
+    double  GetPosY();
+    void    SetPosXY( double x, double y);
+    void TransLate( double x, double y );
+    void CalcBoundingBox();
+
+    virtual void Render(wxTransformMatrix* cworld, int clip_x, int clip_y, int clip_width, int clip_height );
+    virtual void WriteSVG( wxTextOutputStream &stream );
+
+    wxCanvasObject* IsHitWorld( double x, double y, double margin = 0 );
+
+    INOUTPOLY PointInPolygon(const wxPoint2DDouble& P, double marge);
+
+private:
+
+    wxBrush       m_brush;
+    wxPen         m_pen;
+    bool          m_spline;
+    wxColour      m_textbg;
+    wxColour      m_textfg;
+    //if brush is of type bitmap with a mask fill with mask transparent
+    bool          m_transp;
+
+    wxList*       m_lpoints;
+};
+
+//----------------------------------------------------------------------------
+// wxCanvasPolyline
+//----------------------------------------------------------------------------
+
+class wxCanvasPolylineL: public wxCanvasObject
+{
+public:
+    wxCanvasPolylineL(wxList* points, bool spline );
+    ~wxCanvasPolylineL();
+    void SetPen( const wxPen& pen)    { m_pen = pen; CalcBoundingBox(); }
+
+    double  GetPosX();
+    double  GetPosY();
+    void    SetPosXY( double x, double y);
+
+    void TransLate( double x, double y );
+    void CalcBoundingBox();
+
+    virtual void Render(wxTransformMatrix* cworld, int clip_x, int clip_y, int clip_width, int clip_height );
+    virtual void WriteSVG( wxTextOutputStream &stream );
+
+    wxCanvasObject* IsHitWorld( double x, double y, double margin = 0 );
+
+    bool PointOnPolyline(const wxPoint2DDouble& P, double marge);
+
+private:
+    wxPen         m_pen;
+    bool          m_spline;
+
+    wxList*       m_lpoints;
+};
+
+//active edge table
+class wxAET
+{
+public:
+    inline void CalculateLineParameters( const wxPoint2DDouble& p1 , const wxPoint2DDouble& p2 );
+    inline void CalculateXs( double y );
+
+    //line paramters
+    bool m_horizontal;
+    double m_BdivA;
+    double m_CdivA;
+    int m_index;
+    int m_direction;
+    //intersection point with scanline;
+    double m_xs;
+};
+
+#endif
+