///////////////////////////////////////////////////////////////////////////// // Name: wx/os2/dc.h // Purpose: wxDC class // Author: David Webster // Modified by: // Created: 08/26/99 // Copyright: (c) David Webster // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// #ifndef _WX_DC_H_ #define _WX_DC_H_ #include "wx/defs.h" #include "wx/dc.h" // --------------------------------------------------------------------------- // macros // --------------------------------------------------------------------------- // Logical to device // Absolute #define XLOG2DEV(x) (x) #define YLOG2DEV(y) (y) // Relative #define XLOG2DEVREL(x) (x) #define YLOG2DEVREL(y) (y) // Device to logical // Absolute #define XDEV2LOG(x) (x) #define YDEV2LOG(y) (y) // Relative #define XDEV2LOGREL(x) (x) #define YDEV2LOGREL(y) (y) /* * Have the same macros as for XView but not for every operation: * just for calculating window/viewport extent (a better way of scaling). */ // Logical to device // Absolute #define MS_XLOG2DEV(x) LogicalToDevice(x) #define MS_YLOG2DEV(y) LogicalToDevice(y) // Relative #define MS_XLOG2DEVREL(x) LogicalToDeviceXRel(x) #define MS_YLOG2DEVREL(y) LogicalToDeviceYRel(y) // Device to logical // Absolute #define MS_XDEV2LOG(x) DeviceToLogicalX(x) #define MS_YDEV2LOG(y) DeviceToLogicalY(y) // Relative #define MS_XDEV2LOGREL(x) DeviceToLogicalXRel(x) #define MS_YDEV2LOGREL(y) DeviceToLogicalYRel(y) #define YSCALE(y) (yorigin - (y)) #define wx_round(a) (int)((a)+.5) #if wxUSE_DC_CACHEING /* * Cached blitting, maintaining a cache * of bitmaps required for transparent blitting * instead of constant creation/deletion */ class wxDCCacheEntry : public wxObject { public: wxDCCacheEntry( WXHBITMAP hBitmap ,int nWidth ,int nHeight ,int nDepth ); wxDCCacheEntry( HPS hPS ,int nDepth ); virtual ~wxDCCacheEntry(); WXHBITMAP m_hBitmap; HPS m_hPS; int m_nWidth; int m_nHeight; int m_nDepth; }; // end of CLASS wxDCCacheEntry #endif // this is an ABC: use one of the derived classes to create a DC associated // with a window, screen, printer and so on class WXDLLIMPEXP_CORE wxPMDCImpl : public wxDCImpl { DECLARE_DYNAMIC_CLASS(wxDC) public: wxPMDCImpl(wxDC *owner, WXHDC hDC); virtual ~wxPMDCImpl(); // implement base class pure virtuals // ---------------------------------- virtual void Clear(); virtual bool StartDoc(const wxString& rsMessage); virtual void EndDoc(); virtual void StartPage(); virtual void EndPage(); virtual void SetFont(const wxFont& rFont); virtual void SetPen(const wxPen& rPen); virtual void SetBrush(const wxBrush& rBrush); virtual void SetBackground(const wxBrush& rBrush); virtual void SetBackgroundMode(int nMode); virtual void SetPalette(const wxPalette& rPalette); virtual void DestroyClippingRegion(); virtual wxCoord GetCharHeight() const; virtual wxCoord GetCharWidth() const; virtual bool CanDrawBitmap() const; virtual bool CanGetTextExtent() const; virtual int GetDepth() const; virtual wxSize GetPPI() const; virtual void SetMapMode(wxMappingMode nMode); virtual void SetUserScale( double dX ,double dY ); virtual void SetLogicalScale( double dX ,double dY ); virtual void SetLogicalOrigin( wxCoord vX ,wxCoord vY ); virtual void SetDeviceOrigin( wxCoord vX ,wxCoord vY ); virtual void SetAxisOrientation( bool bXLeftRight ,bool bYBottomUp ); virtual void SetLogicalFunction(wxRasterOperationMode nFunction); // implementation from now on // -------------------------- virtual void SetRop(WXHDC hCdc); virtual void SelectOldObjects(WXHDC hDc); wxWindow* GetWindow() const { return m_pCanvas; } void SetWindow(wxWindow* pWin) { m_pCanvas = pWin; } WXHDC GetHDC() const { return m_hDC; } void SetHDC( WXHDC hDc ,bool bOwnsDC = FALSE ) { m_hDC = hDc; m_bOwnsDC = bOwnsDC; } HPS GetHPS() const { return m_hPS; } void SetHPS(HPS hPS) { m_hPS = hPS; } const wxBitmap& GetSelectedBitmap() const { return m_vSelectedBitmap; } wxBitmap& GetSelectedBitmap() { return m_vSelectedBitmap; } void UpdateClipBox(); #if wxUSE_DC_CACHEING static wxDCCacheEntry* FindBitmapInCache( HPS hPS ,int nWidth ,int nHeight ); static wxDCCacheEntry* FindDCInCache( wxDCCacheEntry* pNotThis ,HPS hPS ); static void AddToBitmapCache(wxDCCacheEntry* pEntry); static void AddToDCCache(wxDCCacheEntry* pEntry); static void ClearCache(); #endif protected: void Init() { m_pCanvas = NULL; m_hOldBitmap = 0; m_hOldPen = 0; m_hOldBrush = 0; m_hOldFont = 0; #if wxUSE_PALETTE m_hOldPalette = 0; #endif // wxUSE_PALETTE m_bOwnsDC = false; m_hDC = 0; m_hOldPS = NULL; m_hPS = NULL; m_bIsPaintTime = false; // True at Paint Time m_pen.SetColour(*wxBLACK); m_brush.SetColour(*wxWHITE); } // 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 ,wxFloodFillStyle 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 ,wxRasterOperationMode 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 ,const wxPoint vaPoints[] ,wxCoord vXoffset ,wxCoord yYoffset ); virtual void DoDrawPolygon( int n ,const wxPoint vaPoints[] ,wxCoord vXoffset ,wxCoord vYoffset ,wxPolygonFillMode nFillStyle = wxODDEVEN_RULE ); #if wxUSE_PALETTE void DoSelectPalette(bool bRealize = FALSE); void InitializePalette(); #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 #endif // _WX_DC_H_