2007-12-18 08:22:37 -05:00
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/////////////////////////////////////////////////////////////////////////////
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// Name: wx/private/graphics.h
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// Purpose: private graphics context header
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// Author: Stefan Csomor
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// Modified by:
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// Created:
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// Copyright: (c) Stefan Csomor
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2011-03-18 11:10:15 -04:00
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// RCS-ID: $Id$
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2007-12-18 08:22:37 -05:00
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_GRAPHICS_PRIVATE_H_
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#define _WX_GRAPHICS_PRIVATE_H_
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#if wxUSE_GRAPHICS_CONTEXT
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#include "wx/graphics.h"
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class WXDLLIMPEXP_CORE wxGraphicsObjectRefData : public wxObjectRefData
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{
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public :
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wxGraphicsObjectRefData( wxGraphicsRenderer* renderer );
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wxGraphicsObjectRefData( const wxGraphicsObjectRefData* data );
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wxGraphicsRenderer* GetRenderer() const ;
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virtual wxGraphicsObjectRefData* Clone() const ;
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2007-12-18 08:22:37 -05:00
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protected :
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wxGraphicsRenderer* m_renderer;
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} ;
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class WXDLLIMPEXP_CORE wxGraphicsMatrixData : public wxGraphicsObjectRefData
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{
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public :
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wxGraphicsMatrixData( wxGraphicsRenderer* renderer) :
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wxGraphicsObjectRefData(renderer) {}
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virtual ~wxGraphicsMatrixData() {}
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// concatenates the matrix
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virtual void Concat( const wxGraphicsMatrixData *t ) = 0;
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// sets the matrix to the respective values
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virtual void Set(wxDouble a=1.0, wxDouble b=0.0, wxDouble c=0.0, wxDouble d=1.0,
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wxDouble tx=0.0, wxDouble ty=0.0) = 0;
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// gets the component valuess of the matrix
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virtual void Get(wxDouble* a=NULL, wxDouble* b=NULL, wxDouble* c=NULL,
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wxDouble* d=NULL, wxDouble* tx=NULL, wxDouble* ty=NULL) const = 0;
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// makes this the inverse matrix
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virtual void Invert() = 0;
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// returns true if the elements of the transformation matrix are equal ?
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virtual bool IsEqual( const wxGraphicsMatrixData* t) const = 0;
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// return true if this is the identity matrix
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virtual bool IsIdentity() const = 0;
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//
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// transformation
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//
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// add the translation to this matrix
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virtual void Translate( wxDouble dx , wxDouble dy ) = 0;
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// add the scale to this matrix
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virtual void Scale( wxDouble xScale , wxDouble yScale ) = 0;
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// add the rotation to this matrix (radians)
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virtual void Rotate( wxDouble angle ) = 0;
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//
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// apply the transforms
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//
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// applies that matrix to the point
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virtual void TransformPoint( wxDouble *x, wxDouble *y ) const = 0;
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// applies the matrix except for translations
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virtual void TransformDistance( wxDouble *dx, wxDouble *dy ) const =0;
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// returns the native representation
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virtual void * GetNativeMatrix() const = 0;
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} ;
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class WXDLLIMPEXP_CORE wxGraphicsPathData : public wxGraphicsObjectRefData
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{
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public :
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wxGraphicsPathData(wxGraphicsRenderer* renderer) : wxGraphicsObjectRefData(renderer) {}
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virtual ~wxGraphicsPathData() {}
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//
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// These are the path primitives from which everything else can be constructed
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//
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// begins a new subpath at (x,y)
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virtual void MoveToPoint( wxDouble x, wxDouble y ) = 0;
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// adds a straight line from the current point to (x,y)
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virtual void AddLineToPoint( wxDouble x, wxDouble y ) = 0;
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// adds a cubic Bezier curve from the current point, using two control points and an end point
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virtual void AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y ) = 0;
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// adds another path
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virtual void AddPath( const wxGraphicsPathData* path ) =0;
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// closes the current sub-path
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virtual void CloseSubpath() = 0;
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// gets the last point of the current path, (0,0) if not yet set
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virtual void GetCurrentPoint( wxDouble* x, wxDouble* y) const = 0;
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// adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
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virtual void AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise ) = 0;
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//
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// These are convenience functions which - if not available natively will be assembled
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// using the primitives from above
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//
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// adds a quadratic Bezier curve from the current point, using a control point and an end point
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virtual void AddQuadCurveToPoint( wxDouble cx, wxDouble cy, wxDouble x, wxDouble y );
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// appends a rectangle as a new closed subpath
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virtual void AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h );
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// appends an ellipsis as a new closed subpath fitting the passed rectangle
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virtual void AddCircle( wxDouble x, wxDouble y, wxDouble r );
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// 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)
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virtual void AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r ) ;
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// appends an ellipse
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virtual void AddEllipse( wxDouble x, wxDouble y, wxDouble w, wxDouble h);
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// appends a rounded rectangle
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virtual void AddRoundedRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h, wxDouble radius);
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// returns the native path
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virtual void * GetNativePath() const = 0;
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// give the native path returned by GetNativePath() back (there might be some deallocations necessary)
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virtual void UnGetNativePath(void *p) const= 0;
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// transforms each point of this path by the matrix
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virtual void Transform( const wxGraphicsMatrixData* matrix ) =0;
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// gets the bounding box enclosing all points (possibly including control points)
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virtual void GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) const=0;
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virtual bool Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle = wxODDEVEN_RULE) const=0;
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};
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#endif
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#endif // _WX_GRAPHICS_PRIVATE_H_
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