#ifndef _WX_GRAPHICS_H_
#define _WX_GRAPHICS_H_
+#include "wx/defs.h"
+
#if wxUSE_GRAPHICS_CONTEXT
#include "wx/geometry.h"
#include "wx/dynarray.h"
-class WXDLLIMPEXP_CORE wxWindowDC;
-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;
+class WXDLLIMPEXP_FWD_CORE wxWindowDC;
+class WXDLLIMPEXP_FWD_CORE wxMemoryDC;
+class WXDLLIMPEXP_FWD_CORE wxGraphicsContext;
+class WXDLLIMPEXP_FWD_CORE wxGraphicsPath;
+class WXDLLIMPEXP_FWD_CORE wxGraphicsMatrix;
+class WXDLLIMPEXP_FWD_CORE wxGraphicsFigure;
+class WXDLLIMPEXP_FWD_CORE wxGraphicsRenderer;
+class WXDLLIMPEXP_FWD_CORE wxGraphicsPen;
+class WXDLLIMPEXP_FWD_CORE wxGraphicsBrush;
+class WXDLLIMPEXP_FWD_CORE wxGraphicsFont;
/*
* notes about the graphics context apis
// instance from the other instances that were shared - using copy on write semantics
//
-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_FWD_CORE wxGraphicsObjectRefData;
+class WXDLLIMPEXP_FWD_CORE wxGraphicsMatrixData;
+class WXDLLIMPEXP_FWD_CORE wxGraphicsPathData;
class WXDLLIMPEXP_CORE wxGraphicsObject : public wxObject
{
virtual wxObjectRefData* CreateRefData() const;
virtual wxObjectRefData* CloneRefData(const wxObjectRefData* data) const;
- DECLARE_DYNAMIC_CLASS(wxGraphicsObject);
+ DECLARE_DYNAMIC_CLASS(wxGraphicsObject)
} ;
class WXDLLIMPEXP_CORE wxGraphicsPen : public wxGraphicsObject
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;
-
- // 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 :
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();
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
- //
-
- // 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;
-};
-
class WXDLLIMPEXP_CORE wxGraphicsPath : public wxGraphicsObject
{
public :
virtual ~wxGraphicsContext();
static wxGraphicsContext* Create( const wxWindowDC& dc) ;
-
+ static wxGraphicsContext * Create( const wxMemoryDC& dc) ;
+
static wxGraphicsContext* CreateFromNative( void * context ) ;
static wxGraphicsContext* CreateFromNativeWindow( void * window ) ;
static wxGraphicsContext* Create( wxWindow* window ) ;
+ // create a context that can be used for measuring texts only, no drawing allowed
+ static wxGraphicsContext * Create();
+
+ // begin a new document (relevant only for printing / pdf etc) if there is a progress dialog, message will be shown
+ virtual bool StartDoc( const wxString& message ) ;
+
+ // done with that document (relevant only for printing / pdf etc)
+ virtual void EndDoc();
+
+ // opens a new page (relevant only for printing / pdf etc) with the given size in points
+ // (if both are null the default page size will be used)
+ virtual void StartPage( wxDouble width = 0, wxDouble height = 0 );
+
+ // ends the current page (relevant only for printing / pdf etc)
+ virtual void EndPage();
+
+ // make sure that the current content of this context is immediately visible
+ virtual void Flush();
+
wxGraphicsPath CreatePath() const;
virtual wxGraphicsPen CreatePen(const wxPen& pen) const;
// pops a stored state from the stack
virtual void PopState() = 0;
- // clips drawings to the region, combined to current clipping region
+ // clips drawings to the region intersected with the current clipping region
virtual void Clip( const wxRegion ®ion ) = 0;
- // clips drawings to the rect
+ // clips drawings to the rect intersected with the current clipping region
virtual void Clip( wxDouble x, wxDouble y, wxDouble w, wxDouble h ) = 0;
// resets the clipping to original extent
// 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) ;
+
+ // returns the size of the graphics context in device coordinates
+ virtual void GetSize( wxDouble* width, wxDouble* height);
+
+ // returns the resolution of the graphics context in device points per inch
+ virtual void GetDPI( wxDouble* dpiX, wxDouble* dpiY);
+
+#if 0
+ // sets the current alpha on this context
+ virtual void SetAlpha( wxDouble alpha );
+
+ // returns the alpha on this context
+ virtual wxDouble GetAlpha() const;
+#endif
//
// transformation : changes the current transformation matrix CTM of the context
//
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;
wxGraphicsPen m_pen;
wxGraphicsBrush m_brush;
wxGraphicsFont m_font;
+ int m_logicalFunction;
private :
DECLARE_NO_COPY_CLASS(wxGraphicsContext)
// Context
virtual wxGraphicsContext * CreateContext( const wxWindowDC& dc) = 0 ;
+ virtual wxGraphicsContext * CreateContext( const wxMemoryDC& dc) = 0 ;
virtual wxGraphicsContext * CreateContextFromNativeContext( void * context ) = 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;
projects / wxWidgets.git / blobdiff