///////////////////////////////////////////////////////////////////////////// // Name: dc.h // Purpose: wxDC class // Author: Stefan Csomor // Modified by: // Created: 1998-01-01 // RCS-ID: $Id$ // Copyright: (c) Stefan Csomor // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// #ifndef _WX_DC_H_ #define _WX_DC_H_ #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) #pragma interface "dc.h" #endif #include "wx/pen.h" #include "wx/brush.h" #include "wx/icon.h" #include "wx/font.h" #include "wx/gdicmn.h" //----------------------------------------------------------------------------- // constants //----------------------------------------------------------------------------- #ifndef MM_TEXT #define MM_TEXT 0 #define MM_ISOTROPIC 1 #define MM_ANISOTROPIC 2 #define MM_LOMETRIC 3 #define MM_HIMETRIC 4 #define MM_TWIPS 5 #define MM_POINTS 6 #define MM_METRIC 7 #endif //----------------------------------------------------------------------------- // global variables //----------------------------------------------------------------------------- extern int wxPageNumber; class wxMacPortStateHelper ; //----------------------------------------------------------------------------- // wxDC //----------------------------------------------------------------------------- class WXDLLEXPORT wxDC: public wxDCBase { DECLARE_DYNAMIC_CLASS(wxDC) DECLARE_NO_COPY_CLASS(wxDC) public: wxDC(); ~wxDC(); // implement base class pure virtuals // ---------------------------------- virtual void Clear(); virtual bool StartDoc( const wxString& WXUNUSED(message) ) { return TRUE; } virtual void EndDoc(void) {}; virtual void StartPage(void) {}; virtual void EndPage(void) {}; virtual void SetFont(const wxFont& font); virtual void SetPen(const wxPen& pen); virtual void SetBrush(const wxBrush& brush); virtual void SetBackground(const wxBrush& brush); virtual void SetBackgroundMode(int mode); virtual void SetPalette(const wxPalette& palette); virtual void DestroyClippingRegion(); virtual wxCoord GetCharHeight() const; virtual wxCoord GetCharWidth() const; virtual void DoGetTextExtent(const wxString& string, wxCoord *x, wxCoord *y, wxCoord *descent = NULL, wxCoord *externalLeading = NULL, wxFont *theFont = NULL) const; virtual bool DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const; virtual bool CanDrawBitmap() const; virtual bool CanGetTextExtent() const; virtual int GetDepth() const; virtual wxSize GetPPI() const; virtual void SetMapMode(int mode); virtual void SetUserScale(double x, double y); virtual void SetLogicalScale(double x, double y); virtual void SetLogicalOrigin(wxCoord x, wxCoord y); virtual void SetDeviceOrigin(wxCoord x, wxCoord y); virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp); virtual void SetLogicalFunction(int function); virtual void SetTextForeground(const wxColour& colour) ; virtual void SetTextBackground(const wxColour& colour) ; void ComputeScaleAndOrigin(void); public: wxCoord XDEV2LOG(wxCoord x) const { long new_x = x - m_deviceOriginX ; if (new_x > 0) return (wxCoord)((double)(new_x) / m_scaleX + 0.5) * m_signX + m_logicalOriginX; else return (wxCoord)((double)(new_x) / m_scaleX - 0.5) * m_signX + m_logicalOriginX; } wxCoord XDEV2LOGREL(wxCoord x) const { if (x > 0) return (wxCoord)((double)(x) / m_scaleX + 0.5); else return (wxCoord)((double)(x) / m_scaleX - 0.5); } wxCoord YDEV2LOG(wxCoord y) const { long new_y = y - m_deviceOriginY ; if (new_y > 0) return (wxCoord)((double)(new_y) / m_scaleY + 0.5) * m_signY + m_logicalOriginY; else return (wxCoord)((double)(new_y) / m_scaleY - 0.5) * m_signY + m_logicalOriginY; } wxCoord YDEV2LOGREL(wxCoord y) const { if (y > 0) return (wxCoord)((double)(y) / m_scaleY + 0.5); else return (wxCoord)((double)(y) / m_scaleY - 0.5); } wxCoord XLOG2DEV(wxCoord x) const { long new_x = x - m_logicalOriginX; if (new_x > 0) return (wxCoord)((double)(new_x) * m_scaleX + 0.5) * m_signX + m_deviceOriginX ; else return (wxCoord)((double)(new_x) * m_scaleX - 0.5) * m_signX + m_deviceOriginX ; } wxCoord XLOG2DEVREL(wxCoord x) const { if (x > 0) return (wxCoord)((double)(x) * m_scaleX + 0.5); else return (wxCoord)((double)(x) * m_scaleX - 0.5); } wxCoord YLOG2DEV(wxCoord y) const { long new_y = y - m_logicalOriginY ; if (new_y > 0) return (wxCoord)((double)(new_y) * m_scaleY + 0.5) * m_signY + m_deviceOriginY ; else return (wxCoord)((double)(new_y) * m_scaleY - 0.5) * m_signY + m_deviceOriginY ; } wxCoord YLOG2DEVREL(wxCoord y) const { if (y > 0) return (wxCoord)((double)(y) * m_scaleY + 0.5); else return (wxCoord)((double)(y) * m_scaleY - 0.5); } wxCoord XLOG2DEVMAC(wxCoord x) const { long new_x = x - m_logicalOriginX; if (new_x > 0) return (wxCoord)((double)(new_x) * m_scaleX + 0.5) * m_signX + m_deviceOriginX + m_macLocalOrigin.x ; else return (wxCoord)((double)(new_x) * m_scaleX - 0.5) * m_signX + m_deviceOriginX + m_macLocalOrigin.x ; } wxCoord YLOG2DEVMAC(wxCoord y) const { long new_y = y - m_logicalOriginY ; if (new_y > 0) return (wxCoord)((double)(new_y) * m_scaleY + 0.5) * m_signY + m_deviceOriginY + m_macLocalOrigin.y ; else return (wxCoord)((double)(new_y) * m_scaleY - 0.5) * m_signY + m_deviceOriginY + m_macLocalOrigin.y ; } WXHRGN MacGetCurrentClipRgn() { return m_macCurrentClipRgn ; } static void MacSetupBackgroundForCurrentPort(const wxBrush& background ) ; // protected: virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col, int style = wxFLOOD_SURFACE); virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const; virtual void DoDrawPoint(wxCoord x, wxCoord y); virtual void DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2); virtual void DoDrawArc(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord xc, wxCoord yc); virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h, double sa, double ea); virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height); virtual void DoDrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius); virtual void DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height); virtual void DoCrossHair(wxCoord x, wxCoord y); virtual void DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y); virtual void DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y, bool useMask = FALSE); virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y); virtual void DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y, double angle); virtual bool DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height, wxDC *source, wxCoord xsrc, wxCoord ysrc, int rop = wxCOPY, bool useMask = FALSE, wxCoord xsrcMask = -1, wxCoord ysrcMask = -1); // this is gnarly - we can't even call this function DoSetClippingRegion() // because of virtual function hiding virtual void DoSetClippingRegionAsRegion(const wxRegion& region); virtual void DoSetClippingRegion(wxCoord x, wxCoord y, wxCoord width, wxCoord height); virtual void DoGetClippingRegion(wxCoord *x, wxCoord *y, wxCoord *width, wxCoord *height) { GetClippingBox(x, y, width, height); } virtual void DoGetSizeMM(int* width, int* height) const; virtual void DoDrawLines(int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset); virtual void DoDrawPolygon(int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset, int fillStyle = wxODDEVEN_RULE); protected: //begin wxmac // Variables used for scaling double m_mm_to_pix_x,m_mm_to_pix_y; // not yet used bool m_needComputeScaleX,m_needComputeScaleY; // If un-scrolled is non-zero or d.o. changes with scrolling. // Set using SetInternalDeviceOrigin(). long m_internalDeviceOriginX,m_internalDeviceOriginY; // To be set by external classes such as wxScrolledWindow // using SetDeviceOrigin() long m_externalDeviceOriginX,m_externalDeviceOriginY; // Begin implementation for Mac public: WXHDC m_macPort ; WXHBITMAP m_macMask ; // in order to preserve the const inheritance of the virtual functions, we have to // use mutable variables starting from CWPro 5 void MacInstallFont() const ; void MacInstallPen() const ; void MacInstallBrush() const ; mutable bool m_macFontInstalled ; mutable bool m_macPenInstalled ; mutable bool m_macBrushInstalled ; WXHRGN m_macBoundaryClipRgn ; WXHRGN m_macCurrentClipRgn ; wxPoint m_macLocalOrigin ; void MacSetupPort( wxMacPortStateHelper* ph ) const ; void MacCleanupPort( wxMacPortStateHelper* ph ) const ; mutable void* m_macATSUIStyle ; mutable wxMacPortStateHelper* m_macCurrentPortStateHelper ; mutable bool m_macFormerAliasState ; mutable short m_macFormerAliasSize ; mutable bool m_macAliasWasEnabled ; mutable void* m_macForegroundPixMap ; mutable void* m_macBackgroundPixMap ; }; #endif // _WX_DC_H_