renderer added, creating renderer specific pens etc for faster use
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@42427 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
@@ -17,7 +17,15 @@
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#include "wx/geometry.h"
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#include "wx/dynarray.h"
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class WXDLLEXPORT wxWindowDC;
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class WXDLLIMPEXP_CORE wxWindowDC;
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class WXDLLIMPEXP_CORE wxGraphicsContext;
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class WXDLLIMPEXP_CORE wxGraphicsPath;
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class WXDLLIMPEXP_CORE wxGraphicsMatrix;
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class WXDLLIMPEXP_CORE wxGraphicsFigure;
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class WXDLLIMPEXP_CORE wxGraphicsRenderer;
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class WXDLLIMPEXP_CORE wxGraphicsPen;
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class WXDLLIMPEXP_CORE wxGraphicsBrush;
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class WXDLLIMPEXP_CORE wxGraphicsFont;
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/*
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* notes about the graphics context apis
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@@ -26,33 +34,96 @@ class WXDLLEXPORT wxWindowDC;
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* in direction of positive y axis.
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*/
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class WXDLLEXPORT wxGraphicsPath : public wxObject
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// Base class of all objects used for drawing in the new graphics API, the always point back to their
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// originating rendering engine, there is no dynamic unloading of a renderer currently allowed,
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// these references are not counted
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class WXDLLIMPEXP_CORE wxGraphicsObject : public wxObject
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{
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public :
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wxGraphicsPath() {}
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wxGraphicsObject( wxGraphicsRenderer* renderer = NULL ) : m_renderer(renderer) {}
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wxGraphicsObject( const wxGraphicsObject& obj ) : m_renderer(obj.GetRenderer()) {}
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virtual ~wxGraphicsObject() {}
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wxGraphicsRenderer* GetRenderer() const { return m_renderer ; }
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protected :
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wxGraphicsRenderer* m_renderer;
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DECLARE_DYNAMIC_CLASS(wxGraphicsObject);
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} ;
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class WXDLLIMPEXP_CORE wxGraphicsPen : public wxGraphicsObject
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{
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public :
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wxGraphicsPen(wxGraphicsRenderer* renderer) : wxGraphicsObject(renderer) {}
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virtual ~wxGraphicsPen() {}
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virtual void Apply( wxGraphicsContext* context) = 0;
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virtual wxDouble GetWidth() = 0;
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private :
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DECLARE_NO_COPY_CLASS(wxGraphicsPen)
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DECLARE_ABSTRACT_CLASS(wxGraphicsPen)
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} ;
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class WXDLLIMPEXP_CORE wxGraphicsBrush : public wxGraphicsObject
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{
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public :
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wxGraphicsBrush(wxGraphicsRenderer* renderer) : wxGraphicsObject(renderer) {}
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virtual ~wxGraphicsBrush() {}
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virtual void Apply( wxGraphicsContext* context) = 0;
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private :
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DECLARE_NO_COPY_CLASS(wxGraphicsBrush)
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DECLARE_ABSTRACT_CLASS(wxGraphicsBrush)
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} ;
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class WXDLLIMPEXP_CORE wxGraphicsFont : public wxGraphicsObject
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{
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public :
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wxGraphicsFont(wxGraphicsRenderer* renderer) : wxGraphicsObject(renderer) {}
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virtual ~wxGraphicsFont() {}
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virtual void Apply( wxGraphicsContext* context) = 0;
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private :
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DECLARE_NO_COPY_CLASS(wxGraphicsFont)
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DECLARE_ABSTRACT_CLASS(wxGraphicsFont)
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} ;
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class WXDLLIMPEXP_CORE wxGraphicsPath : public wxGraphicsObject
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{
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public :
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wxGraphicsPath(wxGraphicsRenderer* renderer) : wxGraphicsObject(renderer) {}
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virtual ~wxGraphicsPath() {}
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virtual wxGraphicsPath *Clone() const = 0;
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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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void MoveToPoint( const wxPoint2DDouble& p);
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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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void AddLineToPoint( const wxPoint2DDouble& p);
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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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void AddCurveToPoint( const wxPoint2DDouble& c1, const wxPoint2DDouble& c2, const wxPoint2DDouble& e);
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// adds another path
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virtual void AddPath( const wxGraphicsPath* 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) = 0;
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wxPoint2DDouble GetCurrentPoint();
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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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void AddArc( const wxPoint2DDouble& c, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise);
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//
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// These are convenience functions which - if not available natively will be assembled
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@@ -70,69 +141,94 @@ public :
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// 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)
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virtual void AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r ) ;
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// wrappers using wxPoint2DDoubles
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wxPoint2DDouble GetCurrentPoint();
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void MoveToPoint( const wxPoint2DDouble& p);
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void AddLineToPoint( const wxPoint2DDouble& p);
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void AddCurveToPoint( const wxPoint2DDouble& c1, const wxPoint2DDouble& c2, const wxPoint2DDouble& e);
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void AddArc( const wxPoint2DDouble& c, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise);
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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) = 0;
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// transforms each point of this path by the matrix
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virtual void Transform( wxGraphicsMatrix* 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 *y) =0;
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wxRect2DDouble GetBox();
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virtual bool Contains( wxDouble x, wxDouble y, int fillStyle = wxWINDING_RULE) =0;
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bool Contains( const wxPoint2DDouble& c, int fillStyle = wxWINDING_RULE);
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DECLARE_NO_COPY_CLASS(wxGraphicsPath)
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DECLARE_ABSTRACT_CLASS(wxGraphicsPath)
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};
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/*
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class WXDLLEXPORT wxGraphicsMatrix
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class WXDLLIMPEXP_CORE wxGraphicsMatrix : public wxGraphicsObject
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{
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public :
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wxGraphicsMatrix() {}
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wxGraphicsMatrix(wxGraphicsRenderer* renderer) : wxGraphicsObject(renderer) {}
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virtual ~wxGraphicsMatrix() {}
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wxGraphicsMatrix* Concat( const wxGraphicsMatrix *t ) const;
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virtual wxGraphicsMatrix *Clone() const = 0;
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// concatenates the matrix
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virtual void Concat( const wxGraphicsMatrix *t ) = 0;
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void Concat( const wxGraphicsMatrix &t ) { Concat( &t ); }
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// returns the inverse matrix
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wxGraphicsMatrix* Invert() const;
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// copies the passed in matrix
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virtual void Copy( const wxGraphicsMatrix *t ) = 0;
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void Copy( const wxGraphicsMatrix &t ) { Copy( &t ); }
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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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// 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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bool operator==(const wxGraphicsMatrix& t) const;
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virtual bool IsEqual( const wxGraphicsMatrix* t) const = 0;
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bool IsEqual( const wxGraphicsMatrix& t) const { return IsEqual( &t ); }
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// return true if this is the identity matrix
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bool IsIdentity();
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virtual bool IsIdentity() = 0;
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//
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// transformation
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//
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// translate
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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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// scale
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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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// rotate (radians)
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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 ) = 0;
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// applies the matrix except for translations
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virtual void TransformDistance( wxDouble *dx, wxDouble *dy ) =0;
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// returns the native representation
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virtual void * GetNativeMatrix() const = 0;
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DECLARE_NO_COPY_CLASS(wxGraphicsMatrix)
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DECLARE_ABSTRACT_CLASS(wxGraphicsMatrix)
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} ;
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*/
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class WXDLLEXPORT wxGraphicsContext : public wxObject
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class WXDLLIMPEXP_CORE wxGraphicsContext : public wxGraphicsObject
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{
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public:
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wxGraphicsContext() {}
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wxGraphicsContext(wxGraphicsRenderer* renderer);
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virtual ~wxGraphicsContext() {}
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virtual ~wxGraphicsContext();
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static wxGraphicsContext* Create( const wxWindowDC& dc) ;
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@@ -143,14 +239,27 @@ public:
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#endif
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static wxGraphicsContext* Create( wxWindow* window ) ;
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// creates a path instance that corresponds to the type of graphics context, ie GDIPlus, cairo, CoreGraphics ...
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virtual wxGraphicsPath * CreatePath() = 0;
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wxGraphicsPath * CreatePath();
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/*
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virtual wxGraphicsPen* CreatePen(const wxPen& pen);
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virtual wxGraphicsBrush* CreateBrush(const wxBrush& brush );
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// sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
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virtual wxGraphicsBrush* CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
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const wxColour&c1, const wxColour&c2);
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// sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
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// with radius r and color cColor
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virtual wxGraphicsBrush* CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
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const wxColour &oColor, const wxColour &cColor);
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// sets the font
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virtual wxGraphicsFont* CreateFont( const wxFont &font , const wxColour &col = *wxBLACK );
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// create a 'native' matrix corresponding to these values
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virtual wxGraphicsMatrix* CreateMatrix( 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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*/
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wxDouble tx=0.0, wxDouble ty=0.0);
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// push the current state of the context, ie the transformation matrix on a stack
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virtual void PushState() = 0;
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@@ -182,32 +291,34 @@ public:
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// rotate (radians)
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virtual void Rotate( wxDouble angle ) = 0;
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// concatenates this transform with the current transform of this context
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virtual void ConcatTransform( const wxGraphicsMatrix* matrix ) = 0;
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// sets the transform of this context
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virtual void SetTransform( const wxGraphicsMatrix* matrix ) = 0;
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// gets the matrix of this context
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virtual void GetTransform( wxGraphicsMatrix* matrix ) = 0;
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//
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// setting the paint
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//
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// sets the pan
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virtual void SetPen( const wxPen &pen ) = 0;
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// sets the pen
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virtual void SetPen( wxGraphicsPen* pen , bool release = true );
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void SetPen( const wxPen& pen );
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// sets the brush for filling
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virtual void SetBrush( const wxBrush &brush ) = 0;
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// sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
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virtual void SetLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
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const wxColour&c1, const wxColour&c2) = 0;
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// sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
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// with radius r and color cColor
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virtual void SetRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
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const wxColour &oColor, const wxColour &cColor) = 0;
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virtual void SetBrush( wxGraphicsBrush* brush , bool release = true );
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void SetBrush( const wxBrush& brush );
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// sets the font
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virtual void SetFont( const wxFont &font ) = 0;
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virtual void SetFont( wxGraphicsFont* font, bool release = true );
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void SetFont( const wxFont& font, const wxColour& colour );
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// sets the text color
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virtual void SetTextColour( const wxColour &col ) = 0;
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// strokes along a path with the current pen
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virtual void StrokePath( const wxGraphicsPath *path ) = 0;
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@@ -263,16 +374,116 @@ public:
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// draws a rounded rectangle
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virtual void DrawRoundedRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h, wxDouble radius);
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// wrappers using wxPoint2DDouble TODO
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// wrappers using wxPoint2DDouble TODO
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protected :
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// helper to determine if a 0.5 offset should be applied for the drawing operation
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virtual bool ShouldOffset() const { return false; }
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wxGraphicsPen* m_pen;
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bool m_releasePen;
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wxGraphicsBrush* m_brush;
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bool m_releaseBrush;
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wxGraphicsFont* m_font;
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bool m_releaseFont;
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private :
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DECLARE_NO_COPY_CLASS(wxGraphicsContext)
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DECLARE_ABSTRACT_CLASS(wxGraphicsContext)
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};
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#if 0
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//
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// A graphics figure allows to cache path, pen etc creations, also will be a basis for layering/grouping elements
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//
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class WXDLLIMPEXP_CORE wxGraphicsFigure : public wxGraphicsObject
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{
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public :
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wxGraphicsFigure(wxGraphicsRenderer* renderer) ;
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virtual ~wxGraphicsFigure() ;
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void SetPath( wxGraphicsMatrix* matrix );
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void SetMatrix( wxGraphicsPath* path);
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// draws this object on the context
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virtual void Draw( wxGraphicsContext* cg );
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// returns the path of this object
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wxGraphicsPath* GetPath() { return m_path; }
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// returns the transformation matrix of this object, may be null if there is no transformation necessary
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wxGraphicsMatrix* GetMatrix() { return m_matrix; }
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private :
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wxGraphicsMatrix* m_matrix;
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wxGraphicsPath* m_path;
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DECLARE_DYNAMIC_CLASS(wxGraphicsFigure)
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} ;
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#endif
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//
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// The graphics renderer is the instance corresponding to the rendering engine used, eg there is ONE core graphics renderer
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// instance on OSX. This instance is pointed back to by all objects created by it. Therefore you can create eg additional
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// paths at any point from a given matrix etc.
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//
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class WXDLLIMPEXP_CORE wxGraphicsRenderer : public wxObject
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{
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public :
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wxGraphicsRenderer() {}
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virtual ~wxGraphicsRenderer() {}
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static wxGraphicsRenderer* GetDefaultRenderer();
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// Context
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virtual wxGraphicsContext * CreateContext( const wxWindowDC& dc) = 0 ;
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virtual wxGraphicsContext * CreateContextFromNativeContext( void * context ) = 0;
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virtual wxGraphicsContext * CreateContextFromNativeWindow( void * window ) = 0;
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virtual wxGraphicsContext * CreateContext( wxWindow* window ) = 0;
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// Path
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virtual wxGraphicsPath * CreatePath() = 0;
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// Matrix
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virtual wxGraphicsMatrix * CreateMatrix( 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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// Paints
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virtual wxGraphicsPen* CreatePen(const wxPen& pen) = 0 ;
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virtual wxGraphicsBrush* CreateBrush(const wxBrush& brush ) = 0 ;
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// sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
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virtual wxGraphicsBrush* CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
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const wxColour&c1, const wxColour&c2) = 0;
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// sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
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// with radius r and color cColor
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virtual wxGraphicsBrush* CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
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const wxColour &oColor, const wxColour &cColor) = 0;
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// sets the font
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virtual wxGraphicsFont* CreateFont( const wxFont &font , const wxColour &col = *wxBLACK ) = 0;
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private :
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DECLARE_NO_COPY_CLASS(wxGraphicsRenderer)
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DECLARE_ABSTRACT_CLASS(wxGraphicsRenderer)
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} ;
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#endif
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#endif // _WX_GRAPHICS_H_
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