+/////////////////////////////////////////////////////////////////////////////
+// Name: wx/private/graphics.h
+// Purpose: private graphics context header
+// Author: Stefan Csomor
+// Modified by:
+// Created:
+// Copyright: (c) Stefan Csomor
+// RCS-ID: $Id: graphics.h 50348 2007-11-30 13:48:22Z RR $
+// Licence: wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_GRAPHICS_PRIVATE_H_
+#define _WX_GRAPHICS_PRIVATE_H_
+
+#if wxUSE_GRAPHICS_CONTEXT
+
+#include "wx/graphics.h"
+
+class WXDLLIMPEXP_CORE wxGraphicsObjectRefData : public wxObjectRefData
+{
+ public :
+ wxGraphicsObjectRefData( wxGraphicsRenderer* renderer );
+ wxGraphicsObjectRefData( const wxGraphicsObjectRefData* data );
+ wxGraphicsRenderer* GetRenderer() const ;
+ virtual wxGraphicsObjectRefData* Clone() const ;
+
+ protected :
+ wxGraphicsRenderer* m_renderer;
+} ;
+
+class WXDLLIMPEXP_CORE wxGraphicsMatrixData : public wxGraphicsObjectRefData
+{
+public :
+ wxGraphicsMatrixData( wxGraphicsRenderer* renderer) :
+ wxGraphicsObjectRefData(renderer) {}
+
+ virtual ~wxGraphicsMatrixData() {}
+
+ // concatenates the matrix
+ virtual void Concat( const wxGraphicsMatrixData *t ) = 0;
+
+ // sets the matrix to the respective values
+ virtual void Set(wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
+ wxDouble tx=0.0, wxDouble ty=0.0) = 0;
+
+ // gets the component valuess of the matrix
+ virtual void Get(wxDouble* a=NULL, wxDouble* b=NULL, wxDouble* c=NULL,
+ wxDouble* d=NULL, wxDouble* tx=NULL, wxDouble* ty=NULL) const = 0;
+
+ // makes this the inverse matrix
+ virtual void Invert() = 0;
+
+ // returns true if the elements of the transformation matrix are equal ?
+ virtual bool IsEqual( const wxGraphicsMatrixData* t) const = 0;
+
+ // return true if this is the identity matrix
+ virtual bool IsIdentity() const = 0;
+
+ //
+ // transformation
+ //
+
+ // add the translation to this matrix
+ virtual void Translate( wxDouble dx , wxDouble dy ) = 0;
+
+ // add the scale to this matrix
+ virtual void Scale( wxDouble xScale , wxDouble yScale ) = 0;
+
+ // add the rotation to this matrix (radians)
+ virtual void Rotate( wxDouble angle ) = 0;
+
+ //
+ // apply the transforms
+ //
+
+ // applies that matrix to the point
+ virtual void TransformPoint( wxDouble *x, wxDouble *y ) const = 0;
+
+ // applies the matrix except for translations
+ virtual void TransformDistance( wxDouble *dx, wxDouble *dy ) const =0;
+
+ // returns the native representation
+ virtual void * GetNativeMatrix() const = 0;
+} ;
+
+class WXDLLIMPEXP_CORE wxGraphicsPathData : public wxGraphicsObjectRefData
+{
+public :
+ wxGraphicsPathData(wxGraphicsRenderer* renderer) : wxGraphicsObjectRefData(renderer) {}
+ virtual ~wxGraphicsPathData() {}
+
+ //
+ // These are the path primitives from which everything else can be constructed
+ //
+
+ // begins a new subpath at (x,y)
+ virtual void MoveToPoint( wxDouble x, wxDouble y ) = 0;
+
+ // adds a straight line from the current point to (x,y)
+ virtual void AddLineToPoint( wxDouble x, wxDouble y ) = 0;
+
+ // adds a cubic Bezier curve from the current point, using two control points and an end point
+ virtual void AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y ) = 0;
+
+ // adds another path
+ virtual void AddPath( const wxGraphicsPathData* path ) =0;
+
+ // closes the current sub-path
+ virtual void CloseSubpath() = 0;
+
+ // gets the last point of the current path, (0,0) if not yet set
+ virtual void GetCurrentPoint( wxDouble* x, wxDouble* y) const = 0;
+
+ // adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
+ virtual void AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise ) = 0;
+
+ //
+ // These are convenience functions which - if not available natively will be assembled
+ // using the primitives from above
+ //
+
+ // adds a quadratic Bezier curve from the current point, using a control point and an end point
+ virtual void AddQuadCurveToPoint( wxDouble cx, wxDouble cy, wxDouble x, wxDouble y );
+
+ // appends a rectangle as a new closed subpath
+ virtual void AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
+
+ // appends an ellipsis as a new closed subpath fitting the passed rectangle
+ virtual void AddCircle( wxDouble x, wxDouble y, wxDouble r );
+
+ // appends a an arc to two tangents connecting (current) to (x1,y1) and (x1,y1) to (x2,y2), also a straight line from (current) to (x1,y1)
+ virtual void AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r ) ;
+
+ // appends an ellipse
+ virtual void AddEllipse( wxDouble x, wxDouble y, wxDouble w, wxDouble h);
+
+ // appends a rounded rectangle
+ virtual void AddRoundedRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h, wxDouble radius);
+
+ // returns the native path
+ virtual void * GetNativePath() const = 0;
+
+ // give the native path returned by GetNativePath() back (there might be some deallocations necessary)
+ virtual void UnGetNativePath(void *p) const= 0;
+
+ // transforms each point of this path by the matrix
+ virtual void Transform( const wxGraphicsMatrixData* matrix ) =0;
+
+ // gets the bounding box enclosing all points (possibly including control points)
+ virtual void GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) const=0;
+
+ virtual bool Contains( wxDouble x, wxDouble y, int fillStyle = wxODDEVEN_RULE) const=0;
+};
+
+#endif
+
+#endif // _WX_GRAPHICS_PRIVATE_H_