#include "wx/geometry.h"
#include "wx/dynarray.h"
-class WXDLLEXPORT wxWindowDC;
+class WXDLLIMPEXP_CORE wxWindowDC;
+class WXDLLIMPEXP_CORE wxMemoryDC;
+class WXDLLIMPEXP_CORE wxGraphicsContext;
+class WXDLLIMPEXP_CORE wxGraphicsPath;
+class WXDLLIMPEXP_CORE wxGraphicsMatrix;
+class WXDLLIMPEXP_CORE wxGraphicsFigure;
+class WXDLLIMPEXP_CORE wxGraphicsRenderer;
+class WXDLLIMPEXP_CORE wxGraphicsPen;
+class WXDLLIMPEXP_CORE wxGraphicsBrush;
+class WXDLLIMPEXP_CORE wxGraphicsFont;
/*
* notes about the graphics context apis
* in direction of positive y axis.
*/
-class WXDLLEXPORT wxGraphicsPath : public wxObject
+// Base class of all objects used for drawing in the new graphics API, the always point back to their
+// originating rendering engine, there is no dynamic unloading of a renderer currently allowed,
+// these references are not counted
+
+//
+// The data used by objects like graphics pens etc is ref counted, in order to avoid unnecessary expensive
+// duplication. Any operation on a shared instance that results in a modified state, uncouples this
+// instance from the other instances that were shared - using copy on write semantics
+//
+
+class WXDLLIMPEXP_CORE wxGraphicsObjectRefData : public wxObjectRefData
{
public :
- wxGraphicsPath() {}
- virtual ~wxGraphicsPath() {}
+ wxGraphicsObjectRefData( wxGraphicsRenderer* renderer );
+ wxGraphicsObjectRefData( const wxGraphicsObjectRefData* data );
+ wxGraphicsRenderer* GetRenderer() const ;
+ virtual wxGraphicsObjectRefData* Clone() const ;
+
+protected :
+ wxGraphicsRenderer* m_renderer;
+} ;
+
+class WXDLLIMPEXP_CORE wxGraphicsObject : public wxObject
+{
+public :
+ wxGraphicsObject() ;
+ wxGraphicsObject( wxGraphicsRenderer* renderer ) ;
+ virtual ~wxGraphicsObject() ;
+ bool IsNull() const ;
+
+ // returns the renderer that was used to create this instance, or NULL if it has not been initialized yet
+ wxGraphicsRenderer* GetRenderer() const ;
+ wxGraphicsObjectRefData* GetGraphicsData() const ;
+protected :
+ virtual wxObjectRefData* CreateRefData() const;
+ virtual wxObjectRefData* CloneRefData(const wxObjectRefData* data) const;
+
+ DECLARE_DYNAMIC_CLASS(wxGraphicsObject)
+} ;
+
+class WXDLLIMPEXP_CORE wxGraphicsPen : public wxGraphicsObject
+{
+public :
+ wxGraphicsPen() {}
+ virtual ~wxGraphicsPen() {}
+private :
+ DECLARE_DYNAMIC_CLASS(wxGraphicsPen)
+} ;
+
+extern WXDLLEXPORT_DATA(wxGraphicsPen) wxNullGraphicsPen;
+
+class WXDLLIMPEXP_CORE wxGraphicsBrush : public wxGraphicsObject
+{
+public :
+ wxGraphicsBrush() {}
+ virtual ~wxGraphicsBrush() {}
+private :
+ DECLARE_DYNAMIC_CLASS(wxGraphicsBrush)
+} ;
+
+extern WXDLLEXPORT_DATA(wxGraphicsBrush) wxNullGraphicsBrush;
+
+class WXDLLIMPEXP_CORE wxGraphicsFont : public wxGraphicsObject
+{
+public :
+ wxGraphicsFont() {}
+ virtual ~wxGraphicsFont() {}
+private :
+ DECLARE_DYNAMIC_CLASS(wxGraphicsFont)
+} ;
+
+extern WXDLLEXPORT_DATA(wxGraphicsFont) wxNullGraphicsFont;
+
+
+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 wxGraphicsMatrix : public wxGraphicsObject
+{
+public :
+ wxGraphicsMatrix() {}
+
+ virtual ~wxGraphicsMatrix() {}
+
+ // concatenates the matrix
+ virtual void Concat( const wxGraphicsMatrix *t );
+ void Concat( const wxGraphicsMatrix &t ) { Concat( &t ); }
+
+ // 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);
+
+ // 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;
+
+ // makes this the inverse matrix
+ virtual void Invert();
+
+ // returns true if the elements of the transformation matrix are equal ?
+ virtual bool IsEqual( const wxGraphicsMatrix* t) const;
+ bool IsEqual( const wxGraphicsMatrix& t) const { return IsEqual( &t ); }
+
+ // return true if this is the identity matrix
+ virtual bool IsIdentity() const;
+
+ //
+ // transformation
+ //
+
+ // add the translation to this matrix
+ virtual void Translate( wxDouble dx , wxDouble dy );
+
+ // add the scale to this matrix
+ virtual void Scale( wxDouble xScale , wxDouble yScale );
+
+ // add the rotation to this matrix (radians)
+ virtual void Rotate( wxDouble angle );
+
+ //
+ // apply the transforms
+ //
+
+ // applies that matrix to the point
+ virtual void TransformPoint( wxDouble *x, wxDouble *y ) const;
+
+ // applies the matrix except for translations
+ virtual void TransformDistance( wxDouble *dx, wxDouble *dy ) const;
+
+ // returns the native representation
+ virtual void * GetNativeMatrix() const;
+
+ const wxGraphicsMatrixData* GetMatrixData() const
+ { return (const wxGraphicsMatrixData*) GetRefData(); }
+ wxGraphicsMatrixData* GetMatrixData()
+ { return (wxGraphicsMatrixData*) GetRefData(); }
+
+private :
+ DECLARE_DYNAMIC_CLASS(wxGraphicsMatrix)
+} ;
+
+extern WXDLLEXPORT_DATA(wxGraphicsMatrix) wxNullGraphicsMatrix;
+
+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
//
// 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) = 0;
+ 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;
// appends an ellipsis as a new closed subpath fitting the passed rectangle
virtual void AddCircle( wxDouble x, wxDouble y, wxDouble r );
- // draws 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)
+ // 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 ) ;
- // wrappers using wxPoint2DDoubles
+ // 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;
- wxPoint2DDouble GetCurrentPoint();
+ // 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;
+};
+
+class WXDLLIMPEXP_CORE wxGraphicsPath : public wxGraphicsObject
+{
+public :
+ wxGraphicsPath() {}
+ virtual ~wxGraphicsPath() {}
+
+ //
+ // 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 );
void MoveToPoint( const wxPoint2DDouble& p);
+ // adds a straight line from the current point to (x,y)
+ virtual void AddLineToPoint( wxDouble x, wxDouble y );
void AddLineToPoint( const wxPoint2DDouble& p);
+ // 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 ) ;
void AddCurveToPoint( const wxPoint2DDouble& c1, const wxPoint2DDouble& c2, const wxPoint2DDouble& e);
+
+ // adds another path
+ virtual void AddPath( const wxGraphicsPath& path );
+
+ // closes the current sub-path
+ virtual void CloseSubpath() ;
+
+ // gets the last point of the current path, (0,0) if not yet set
+ virtual void GetCurrentPoint( wxDouble* x, wxDouble* y) const;
+ wxPoint2DDouble GetCurrentPoint() const;
+ // 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 ) ;
void AddArc( const wxPoint2DDouble& c, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise);
-
- /*
- // returns the native path
- virtual void * GetNativePath() = 0;
-
- // give the native path returned by GetNativePath() back (there might be some deallocations necessary)
- virtual void UnGetNativePath(void *p) = 0;
- */
-
- DECLARE_NO_COPY_CLASS(wxGraphicsPath)
- DECLARE_ABSTRACT_CLASS(wxGraphicsPath)
-};
-/*
-class WXDLLEXPORT wxGraphicsMatrix
-{
-public :
- wxGraphicsMatrix() {}
-
- virtual ~wxGraphicsMatrix() {}
-
- wxGraphicsMatrix* Concat( const wxGraphicsMatrix *t ) const;
-
- // returns the inverse matrix
- wxGraphicsMatrix* Invert() const;
-
- // returns true if the elements of the transformation matrix are equal ?
- bool operator==(const wxGraphicsMatrix& t) const;
-
- // return true if this is the identity matrix
- bool IsIdentity();
-
//
- // transformation
+ // 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 ) ;
- // translate
- virtual void Translate( wxDouble dx , wxDouble dy ) = 0;
+ // appends an ellipse
+ virtual void AddEllipse( wxDouble x, wxDouble y, wxDouble w, wxDouble h);
- // scale
- virtual void Scale( wxDouble xScale , wxDouble yScale ) = 0;
+ // appends a rounded rectangle
+ virtual void AddRoundedRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h, wxDouble radius);
- // rotate (radians)
- virtual void Rotate( wxDouble angle ) = 0;
+ // returns the native path
+ virtual void * GetNativePath() const;
+
+ // give the native path returned by GetNativePath() back (there might be some deallocations necessary)
+ virtual void UnGetNativePath(void *p)const;
+
+ // transforms each point of this path by the matrix
+ virtual void Transform( const wxGraphicsMatrix& matrix );
+
+ // gets the bounding box enclosing all points (possibly including control points)
+ virtual void GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h)const;
+ wxRect2DDouble GetBox()const;
+
+ virtual bool Contains( wxDouble x, wxDouble y, int fillStyle = wxODDEVEN_RULE)const;
+ bool Contains( const wxPoint2DDouble& c, int fillStyle = wxODDEVEN_RULE)const;
+
+ const wxGraphicsPathData* GetPathData() const
+ { return (const wxGraphicsPathData*) GetRefData(); }
+ wxGraphicsPathData* GetPathData()
+ { return (wxGraphicsPathData*) GetRefData(); }
+
+private :
+ DECLARE_DYNAMIC_CLASS(wxGraphicsPath)
} ;
-*/
-class WXDLLEXPORT wxGraphicsContext : public wxObject
+extern WXDLLEXPORT_DATA(wxGraphicsPath) wxNullGraphicsPath;
+
+
+class WXDLLIMPEXP_CORE wxGraphicsContext : public wxGraphicsObject
{
public:
- wxGraphicsContext() {}
+ wxGraphicsContext(wxGraphicsRenderer* renderer);
- virtual ~wxGraphicsContext() {}
+ virtual ~wxGraphicsContext();
static wxGraphicsContext* Create( const wxWindowDC& dc) ;
-
+
+#ifdef __WXMSW__
+ static wxGraphicsContext * Create( const wxMemoryDC& dc) ;
+#endif
+
static wxGraphicsContext* CreateFromNative( void * context ) ;
-#ifdef __WXMAC__
static wxGraphicsContext* CreateFromNativeWindow( void * window ) ;
-#endif
+
static wxGraphicsContext* Create( wxWindow* window ) ;
- // creates a path instance that corresponds to the type of graphics context, ie GDIPlus, cairo, CoreGraphics ...
- virtual wxGraphicsPath * CreatePath() = 0;
-
- /*
- // create a 'native' matrix corresponding to these values
- virtual wxGraphicsMatrix* CreateMatrix( 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;
- */
-
+ // create a context that can be used for measuring texts only, no drawing allowed
+ static wxGraphicsContext * Create();
+
+ wxGraphicsPath CreatePath() const;
+
+ virtual wxGraphicsPen CreatePen(const wxPen& pen) const;
+
+ virtual wxGraphicsBrush CreateBrush(const wxBrush& brush ) const;
+
+ // sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
+ virtual wxGraphicsBrush CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
+ const wxColour&c1, const wxColour&c2) const;
+
+ // sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
+ // with radius r and color cColor
+ virtual wxGraphicsBrush CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
+ const wxColour &oColor, const wxColour &cColor) const;
+
+ // sets the font
+ virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) const;
+
+ // create a 'native' matrix corresponding to these values
+ virtual wxGraphicsMatrix CreateMatrix( wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
+ wxDouble tx=0.0, wxDouble ty=0.0) const;
+
// push the current state of the context, ie the transformation matrix on a stack
virtual void PushState() = 0;
// clips drawings to the rect
virtual void Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h ) = 0;
-
- // resets the clipping to original extent
- virtual void ResetClip() = 0 ;
+
+ // resets the clipping to original extent
+ virtual void ResetClip() = 0 ;
- // returns the native context
- virtual void * GetNativeContext() = 0;
+ // returns the native context
+ virtual void * GetNativeContext() = 0;
+
+ // returns the current logical function
+ virtual int GetLogicalFunction() const { return m_logicalFunction; }
+
+ // sets the current logical function, returns true if it supported
+ virtual bool SetLogicalFunction(int function) ;
//
// transformation : changes the current transformation matrix CTM of the context
// rotate (radians)
virtual void Rotate( wxDouble angle ) = 0;
+
+ // concatenates this transform with the current transform of this context
+ virtual void ConcatTransform( const wxGraphicsMatrix& matrix ) = 0;
+ // sets the transform of this context
+ virtual void SetTransform( const wxGraphicsMatrix& matrix ) = 0;
+
+ // gets the matrix of this context
+ virtual wxGraphicsMatrix GetTransform() const = 0;
//
// setting the paint
//
- // sets the pan
- virtual void SetPen( const wxPen &pen ) = 0;
+ // sets the pen
+ virtual void SetPen( const wxGraphicsPen& pen );
+
+ void SetPen( const wxPen& pen );
// sets the brush for filling
- virtual void SetBrush( const wxBrush &brush ) = 0;
-
- // sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
- virtual void SetLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
- const wxColour&c1, const wxColour&c2) = 0;
-
- // sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
- // with radius r and color cColor
- virtual void SetRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
- const wxColour &oColor, const wxColour &cColor) = 0;
+ virtual void SetBrush( const wxGraphicsBrush& brush );
+
+ void SetBrush( const wxBrush& brush );
// sets the font
- virtual void SetFont( const wxFont &font ) = 0;
+ virtual void SetFont( const wxGraphicsFont& font );
- // sets the text color
- virtual void SetTextColor( const wxColour &col ) = 0;
+ void SetFont( const wxFont& font, const wxColour& colour );
+
// strokes along a path with the current pen
- virtual void StrokePath( const wxGraphicsPath *path ) = 0;
+ virtual void StrokePath( const wxGraphicsPath& path ) = 0;
// fills a path with the current brush
- virtual void FillPath( const wxGraphicsPath *path, int fillStyle = wxWINDING_RULE ) = 0;
+ virtual void FillPath( const wxGraphicsPath& path, int fillStyle = wxODDEVEN_RULE ) = 0;
// draws a path by first filling and then stroking
- virtual void DrawPath( const wxGraphicsPath *path, int fillStyle = wxWINDING_RULE );
-
+ virtual void DrawPath( const wxGraphicsPath& path, int fillStyle = wxODDEVEN_RULE );
+
//
// text
//
virtual void DrawText( const wxString &str, wxDouble x, wxDouble y, wxDouble angle );
+ virtual void DrawText( const wxString &str, wxDouble x, wxDouble y, const wxGraphicsBrush& backgroundBrush ) ;
+
+ virtual void DrawText( const wxString &str, wxDouble x, wxDouble y, wxDouble angle, const wxGraphicsBrush& backgroundBrush );
+
virtual void GetTextExtent( const wxString &text, wxDouble *width, wxDouble *height,
wxDouble *descent, wxDouble *externalLeading ) const = 0;
virtual void StrokeLines( size_t n, const wxPoint2DDouble *beginPoints, const wxPoint2DDouble *endPoints);
// draws a polygon
- virtual void DrawLines( size_t n, const wxPoint2DDouble *points, int fillStyle = wxWINDING_RULE );
+ virtual void DrawLines( size_t n, const wxPoint2DDouble *points, int fillStyle = wxODDEVEN_RULE );
// draws a polygon
virtual void DrawRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h);
// wrappers using wxPoint2DDouble TODO
+ // helper to determine if a 0.5 offset should be applied for the drawing operation
+ virtual bool ShouldOffset() const { return false; }
+
+protected :
+
+ wxGraphicsPen m_pen;
+ wxGraphicsBrush m_brush;
+ wxGraphicsFont m_font;
+ int m_logicalFunction;
+
+private :
DECLARE_NO_COPY_CLASS(wxGraphicsContext)
DECLARE_ABSTRACT_CLASS(wxGraphicsContext)
};
+#if 0
+
+//
+// A graphics figure allows to cache path, pen etc creations, also will be a basis for layering/grouping elements
+//
+
+class WXDLLIMPEXP_CORE wxGraphicsFigure : public wxGraphicsObject
+{
+public :
+ wxGraphicsFigure(wxGraphicsRenderer* renderer) ;
+
+ virtual ~wxGraphicsFigure() ;
+
+ void SetPath( wxGraphicsMatrix* matrix );
+
+ void SetMatrix( wxGraphicsPath* path);
+
+ // draws this object on the context
+ virtual void Draw( wxGraphicsContext* cg );
+
+ // returns the path of this object
+ wxGraphicsPath* GetPath() { return m_path; }
+
+ // returns the transformation matrix of this object, may be null if there is no transformation necessary
+ wxGraphicsMatrix* GetMatrix() { return m_matrix; }
+
+private :
+ wxGraphicsMatrix* m_matrix;
+ wxGraphicsPath* m_path;
+
+ DECLARE_DYNAMIC_CLASS(wxGraphicsFigure)
+} ;
+
+#endif
+
+//
+// The graphics renderer is the instance corresponding to the rendering engine used, eg there is ONE core graphics renderer
+// instance on OSX. This instance is pointed back to by all objects created by it. Therefore you can create eg additional
+// paths at any point from a given matrix etc.
+//
+
+class WXDLLIMPEXP_CORE wxGraphicsRenderer : public wxObject
+{
+public :
+ wxGraphicsRenderer() {}
+
+ virtual ~wxGraphicsRenderer() {}
+
+ static wxGraphicsRenderer* GetDefaultRenderer();
+
+ // Context
+
+ virtual wxGraphicsContext * CreateContext( const wxWindowDC& dc) = 0 ;
+#ifdef __WXMSW__
+ virtual wxGraphicsContext * CreateContext( const wxMemoryDC& dc) = 0 ;
+#endif
+ virtual wxGraphicsContext * CreateContextFromNativeContext( void * context ) = 0;
+
+ virtual wxGraphicsContext * CreateContextFromNativeWindow( void * window ) = 0;
+
+ virtual wxGraphicsContext * CreateContext( wxWindow* window ) = 0;
+
+ // create a context that can be used for measuring texts only, no drawing allowed
+ virtual wxGraphicsContext * CreateMeasuringContext() = 0;
+
+ // Path
+
+ virtual wxGraphicsPath CreatePath() = 0;
+
+ // Matrix
+
+ virtual wxGraphicsMatrix CreateMatrix( 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;
+
+ // Paints
+
+ virtual wxGraphicsPen CreatePen(const wxPen& pen) = 0 ;
+
+ virtual wxGraphicsBrush CreateBrush(const wxBrush& brush ) = 0 ;
+
+ // sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
+ virtual wxGraphicsBrush CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
+ const wxColour&c1, const wxColour&c2) = 0;
+
+ // sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
+ // with radius r and color cColor
+ virtual wxGraphicsBrush CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
+ const wxColour &oColor, const wxColour &cColor) = 0;
+
+ // sets the font
+ virtual wxGraphicsFont CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) = 0;
+
+private :
+ DECLARE_NO_COPY_CLASS(wxGraphicsRenderer)
+ DECLARE_ABSTRACT_CLASS(wxGraphicsRenderer)
+} ;
+
#endif
#endif // _WX_GRAPHICS_H_
projects / wxWidgets.git / blobdiff