+ virtual bool CanGetTextExtent(void) const = 0;
+ virtual void GetTextExtent( const wxString &string, long *width, long *height,
+ long *descent = NULL, long *externalLeading = NULL,
+ wxFont *theFont = NULL, bool use16 = FALSE ) = 0;
+ virtual long GetCharWidth(void) = 0;
+ virtual long GetCharHeight(void) = 0;
+
+ virtual void Clear(void) = 0;
+
+ virtual void SetFont( const wxFont &font ) = 0;
+ virtual wxFont& GetFont(void) const { return (wxFont&) m_font; };
+
+ virtual void SetPen( const wxPen &pen ) = 0;
+ virtual wxPen& GetPen(void) const { return (wxPen&) m_pen; };
+
+ virtual void SetBrush( const wxBrush &brush ) = 0;
+ virtual wxBrush& GetBrush(void) const { return (wxBrush&) m_brush; };
+
+ virtual void SetBackground( const wxBrush &brush ) = 0;
+ virtual wxBrush& GetBackground(void) const { return (wxBrush&) m_backgroundBrush; };
+
+ virtual void SetLogicalFunction( int function ) = 0;
+ virtual int GetLogicalFunction(void) const { return m_logicalFunction; };
+
+ virtual void SetTextForeground( const wxColour &col );
+ virtual void SetTextBackground( const wxColour &col );
+ virtual wxColour& GetTextBackground(void) const { return (wxColour&)m_textBackgroundColour; };
+ virtual wxColour& GetTextForeground(void) const { return (wxColour&)m_textForegroundColour; };
+
+ virtual void SetBackgroundMode( int mode ) = 0;
+ virtual int GetBackgroundMode(void) const { return m_backgroundMode; };
+
+ virtual void SetPalette( const wxPalette& palette ) = 0;
+ void SetColourMap( const wxPalette& palette ) { SetPalette(palette); };
+
+ // the first two must be overridden and called
+ virtual void SetClippingRegion( long x, long y, long width, long height );
+ virtual void DestroyClippingRegion(void);
+ virtual void GetClippingBox( long *x, long *y, long *width, long *height ) const;
+
+ virtual inline long MinX(void) const { return m_minX; }
+ virtual inline long MaxX(void) const { return m_maxX; }
+ virtual inline long MinY(void) const { return m_minY; }
+ virtual inline long MaxY(void) const { return m_maxY; }
+
+ virtual void GetSize( int* width, int* height ) const;
+ inline wxSize GetSize(void) const { int w, h; GetSize(&w, &h); return wxSize(w, h); }
+ virtual void GetSizeMM( long* width, long* height ) const;
+
+ virtual bool StartDoc( const wxString& WXUNUSED(message) ) { return TRUE; };
+ virtual void EndDoc(void) {};
+ virtual void StartPage(void) {};
+ virtual void EndPage(void) {};
+
+ virtual void SetMapMode( int mode );
+ virtual int GetMapMode(void) const { return m_mappingMode; };
+
+ virtual void SetUserScale( double x, double y );
+ virtual void GetUserScale( double *x, double *y );
+ virtual void SetLogicalScale( double x, double y );
+ virtual void GetLogicalScale( double *x, double *y );
+
+ virtual void SetLogicalOrigin( long x, long y );
+ virtual void GetLogicalOrigin( long *x, long *y );
+ virtual void SetDeviceOrigin( long x, long y );
+ virtual void GetDeviceOrigin( long *x, long *y );
+ virtual void SetInternalDeviceOrigin( long x, long y );
+ virtual void GetInternalDeviceOrigin( long *x, long *y );
+
+ virtual void SetAxisOrientation( bool xLeftRight, bool yBottomUp );
+
+ virtual void SetOptimization( bool WXUNUSED(optimize) ) {};
+ virtual bool GetOptimization(void) { return m_optimize; };
+
+ virtual long DeviceToLogicalX(long x) const;
+ virtual long DeviceToLogicalY(long y) const;
+ virtual long DeviceToLogicalXRel(long x) const;
+ virtual long DeviceToLogicalYRel(long y) const;
+ virtual long LogicalToDeviceX(long x) const;
+ virtual long LogicalToDeviceY(long y) const;
+ virtual long LogicalToDeviceXRel(long x) const;
+ virtual long LogicalToDeviceYRel(long y) const;
+
+ public:
+
+ void CalcBoundingBox( long x, long y );
+ void ComputeScaleAndOrigin(void);
+
+ long XDEV2LOG(long x) const
+ {
+ long new_x = x - m_deviceOriginX;
+ if (new_x > 0)
+ return (long)((double)(new_x) / m_scaleX + 0.5) * m_signX + m_logicalOriginX;
+ else
+ return (long)((double)(new_x) / m_scaleX - 0.5) * m_signX + m_logicalOriginX;
+ }
+ long XDEV2LOGREL(long x) const
+ {
+ if (x > 0)
+ return (long)((double)(x) / m_scaleX + 0.5);
+ else
+ return (long)((double)(x) / m_scaleX - 0.5);
+ }
+ long YDEV2LOG(long y) const
+ {
+ long new_y = y - m_deviceOriginY;
+ if (new_y > 0)
+ return (long)((double)(new_y) / m_scaleY + 0.5) * m_signY + m_logicalOriginY;
+ else
+ return (long)((double)(new_y) / m_scaleY - 0.5) * m_signY + m_logicalOriginY;
+ }
+ long YDEV2LOGREL(long y) const
+ {
+ if (y > 0)
+ return (long)((double)(y) / m_scaleY + 0.5);
+ else
+ return (long)((double)(y) / m_scaleY - 0.5);
+ }
+ long XLOG2DEV(long x) const
+ {
+ long new_x = x - m_logicalOriginX;
+ if (new_x > 0)
+ return (long)((double)(new_x) * m_scaleX + 0.5) * m_signX + m_deviceOriginX;
+ else
+ return (long)((double)(new_x) * m_scaleX - 0.5) * m_signX + m_deviceOriginX;
+ }
+ long XLOG2DEVREL(long x) const
+ {
+ if (x > 0)
+ return (long)((double)(x) * m_scaleX + 0.5);
+ else
+ return (long)((double)(x) * m_scaleX - 0.5);
+ }
+ long YLOG2DEV(long y) const
+ {
+ long new_y = y - m_logicalOriginY;
+ if (new_y > 0)
+ return (long)((double)(new_y) * m_scaleY + 0.5) * m_signY + m_deviceOriginY;
+ else
+ return (long)((double)(new_y) * m_scaleY - 0.5) * m_signY + m_deviceOriginY;
+ }
+ long YLOG2DEVREL(long y) const
+ {
+ if (y > 0)
+ return (long)((double)(y) * m_scaleY + 0.5);
+ else
+ return (long)((double)(y) * m_scaleY - 0.5);
+ }
+
+ public:
+
+ bool m_ok;
+ bool m_colour;
+
+ // not sure, what these mean
+ bool m_clipping; // Is clipping on right now ?
+ bool m_isInteractive; // Is GetPixel possible ?
+ bool m_autoSetting; // wxMSW only ?
+ bool m_dontDelete; // wxMSW only ?
+ bool m_optimize; // wxMSW only ?
+ wxString m_filename; // Not sure where this belongs.
+
+ wxPen m_pen;
+ wxBrush m_brush;
+ wxBrush m_backgroundBrush;
+ wxColour m_textForegroundColour;
+ wxColour m_textBackgroundColour;
+ wxFont m_font;
+
+ int m_logicalFunction;
+ int m_backgroundMode;
+ int m_textAlignment; // gone in wxWin 2.0 ?
+
+ int m_mappingMode;
+
+ // not sure what for, but what is a mm on a screen you don't know the size of?
+ double m_mm_to_pix_x,m_mm_to_pix_y;
+
+ long m_internalDeviceOriginX,m_internalDeviceOriginY; // If un-scrolled is non-zero or
+ // d.o. changes with scrolling.
+ // Set using SetInternalDeviceOrigin().
+
+ long m_externalDeviceOriginX,m_externalDeviceOriginY; // To be set by external classes
+ // such as wxScrolledWindow
+ // using SetDeviceOrigin()
+
+ long m_deviceOriginX,m_deviceOriginY; // Sum of the two above.
+
+ long m_logicalOriginX,m_logicalOriginY; // User defined.
+
+ double m_scaleX,m_scaleY;
+ double m_logicalScaleX,m_logicalScaleY;
+ double m_userScaleX,m_userScaleY;
+ long m_signX,m_signY;
+
+ bool m_needComputeScaleX,m_needComputeScaleY; // not yet used
+
+ float m_scaleFactor; // wxPSDC wants to have this. Will disappear.
+
+ long m_clipX1,m_clipY1,m_clipX2,m_clipY2;
+ long m_minX,m_maxX,m_minY,m_maxY;
projects / wxWidgets.git / commitdiff
