-/////////////////////////////////////////////////////////////////////////////
-// Name: polygon.h
-// Author: Klaas Holwerda
-// Created: XX/XX/XX
-// Copyright: 2000 (c) Klaas Holwerda
-// Licence: wxWindows Licence
-/////////////////////////////////////////////////////////////////////////////
-
-#ifndef __WXPOLYGON_H__
-#define __WXPOLYGON_H__
-
-#if defined(__GNUG__) && !defined(__APPLE__)
- #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
-
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