- 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;
-};
-
+ // create an uninitialized DC: this should be only used by the derived
+ // classes
+ wxPMDCImpl( wxDC *owner ) : wxDCImpl( owner ) { Init(); }
+
+public:
+ virtual void DoGetTextExtent( const wxString& rsString
+ ,wxCoord* pX
+ ,wxCoord* pY
+ ,wxCoord* pDescent = NULL
+ ,wxCoord* pExternalLeading = NULL
+ ,const wxFont* pTheFont = NULL
+ ) const;
+ virtual bool DoFloodFill( wxCoord vX
+ ,wxCoord vY
+ ,const wxColour& rCol
+ ,int nStyle = wxFLOOD_SURFACE
+ );
+
+ virtual bool DoGetPixel( wxCoord vX
+ ,wxCoord vY
+ ,wxColour* pCol
+ ) const;
+
+ virtual void DoDrawPoint( wxCoord vX
+ ,wxCoord vY
+ );
+ virtual void DoDrawLine( wxCoord vX1
+ ,wxCoord vY1
+ ,wxCoord vX2
+ ,wxCoord vY2
+ );
+
+ virtual void DoDrawArc( wxCoord vX1
+ ,wxCoord vY1
+ ,wxCoord vX2
+ ,wxCoord vY2
+ ,wxCoord vXc
+ ,wxCoord vYc
+ );
+ virtual void DoDrawCheckMark( wxCoord vX
+ ,wxCoord vY
+ ,wxCoord vWidth
+ ,wxCoord vHeight
+ );
+ virtual void DoDrawEllipticArc( wxCoord vX
+ ,wxCoord vY
+ ,wxCoord vW
+ ,wxCoord vH
+ ,double dSa
+ ,double dEa
+ );
+
+ virtual void DoDrawRectangle( wxCoord vX
+ ,wxCoord vY
+ ,wxCoord vWidth
+ ,wxCoord vHeight
+ );
+ virtual void DoDrawRoundedRectangle( wxCoord vX
+ ,wxCoord vY
+ ,wxCoord vWidth
+ ,wxCoord vHeight
+ ,double dRadius
+ );
+ virtual void DoDrawEllipse( wxCoord vX
+ ,wxCoord vY
+ ,wxCoord vWidth
+ ,wxCoord vHeight
+ );
+
+ virtual void DoCrossHair( wxCoord vX
+ ,wxCoord vY
+ );
+
+ virtual void DoDrawIcon( const wxIcon& rIcon
+ ,wxCoord vX
+ ,wxCoord vY
+ );
+ virtual void DoDrawBitmap( const wxBitmap& rBmp
+ ,wxCoord vX
+ ,wxCoord vY
+ ,bool bUseMask = FALSE
+ );
+
+ virtual void DoDrawText( const wxString& rsText
+ ,wxCoord vX
+ ,wxCoord vY
+ );
+ virtual void DoDrawRotatedText( const wxString& rsText
+ ,wxCoord vX
+ ,wxCoord vY
+ ,double dAngle
+ );
+
+ virtual bool DoBlit( wxCoord vXdest
+ ,wxCoord vYdest
+ ,wxCoord vWidth
+ ,wxCoord vHeight
+ ,wxDC* pSource
+ ,wxCoord vXsrc
+ ,wxCoord vYsrc
+ ,int nRop = wxCOPY
+ ,bool bUseMask = FALSE
+ ,wxCoord vXsrcMask = -1
+ ,wxCoord vYsrcMask = -1
+ );
+
+ virtual void DoSetClippingRegion( wxCoord vX
+ ,wxCoord vY
+ ,wxCoord vWidth
+ ,wxCoord vHeight
+ );
+ virtual void DoSetDeviceClippingRegion(const wxRegion& rRegion);
+
+ virtual void DoGetSize( int* pWidth
+ ,int* pHeight
+ ) const;
+ virtual void DoGetSizeMM( int* pWidth
+ ,int* pHeight
+ ) const;
+
+ virtual void DoDrawLines( int n
+ ,wxPoint vaPoints[]
+ ,wxCoord vXoffset
+ ,wxCoord yYoffset
+ );
+ virtual void DoDrawPolygon( int n
+ ,wxPoint vaPoints[]
+ ,wxCoord vXoffset
+ ,wxCoord vYoffset
+ ,int nFillStyle = wxODDEVEN_RULE
+ );
+
+#if wxUSE_PALETTE
+ void DoSelectPalette(bool bRealize = FALSE);
+ void InitializePalette(void);
+#endif // wxUSE_PALETTE
+
+protected:
+ //
+ // common part of DoDrawText() and DoDrawRotatedText()
+ //
+ void DrawAnyText( const wxString& rsText
+ ,wxCoord vX
+ ,wxCoord vY
+ );
+
+ // OS2-specific member variables ?? do we even need this under OS/2?
+ int m_nWindowExtX;
+ int m_nWindowExtY;
+
+ //
+ // the window associated with this DC (may be NULL)
+ //
+ wxWindow* m_pCanvas;
+ wxBitmap m_vSelectedBitmap;
+
+public:
+ // PM specific stuff
+ HPS m_hPS;
+ HPS m_hOldPS; // old hPS, if any
+ bool m_bIsPaintTime;// True at Paint Time
+
+ RECTL m_vRclPaint; // Bounding rectangle at Paint time etc.
+ //
+ // TRUE => DeleteDC() in dtor, FALSE => only ReleaseDC() it
+ //
+ bool m_bOwnsDC:1;
+
+ //
+ // our HDC
+ //
+ WXHDC m_hDC;
+
+ //
+ // Store all old GDI objects when do a SelectObject, so we can select them
+ // back in (this unselecting user's objects) so we can safely delete the
+ // DC.
+ //
+ WXHBITMAP m_hOldBitmap;
+ WXHPEN m_hOldPen;
+ WXHBRUSH m_hOldBrush;
+ WXHFONT m_hOldFont;
+ WXHPALETTE m_hOldPalette;
+
+#if wxUSE_DC_CACHEING
+ static wxList m_svBitmapCache;
+ static wxList m_svDCCache;
+#endif
+}; // end of CLASS wxDC
projects / wxWidgets.git / blobdiff