include/wx/cocoa/dc.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/cocoa/dc.h
   3 // Purpose:     wxDC
   4 // Author:      David Elliott
   5 // Modified by:
   6 // Created:     2003/04/01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2003 David Elliott
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef __WX_COCOA_DC_H__
  13 #define __WX_COCOA_DC_H__
  14
  15 //=========================================================================
  16 // wxDC
  17 //=========================================================================
  18 class WXDLLEXPORT wxDC: public wxDCBase
  19 {
  20     DECLARE_DYNAMIC_CLASS(wxDC)
  21     DECLARE_NO_COPY_CLASS(wxDC)
  22 public:
  23     wxDC();
  24     ~wxDC();
  25
  26     static void CocoaInitializeTextSystem();
  27     static void CocoaShutdownTextSystem();
  28     static wxDC *sm_focusedDC;
  29     static WX_NSTextStorage sm_cocoaNSTextStorage;
  30     static WX_NSLayoutManager sm_cocoaNSLayoutManager;
  31     static WX_NSTextContainer sm_cocoaNSTextContainer;
  32
  33     // implement base class pure virtuals
  34     // ----------------------------------
  35
  36     virtual void Clear();
  37
  38     virtual bool StartDoc( const wxString& WXUNUSED(message) ) { return TRUE; }
  39     virtual void EndDoc(void) {};
  40
  41     virtual void StartPage(void) {};
  42     virtual void EndPage(void) {};
  43
  44     virtual void SetFont(const wxFont& font) {}
  45     virtual void SetPen(const wxPen& pen);
  46     virtual void SetBrush(const wxBrush& brush);
  47     virtual void SetBackground(const wxBrush& brush);
  48     virtual void SetBackgroundMode(int mode) { m_backgroundMode = mode; }
  49     virtual void SetPalette(const wxPalette& palette);
  50
  51     virtual void DestroyClippingRegion();
  52
  53     virtual wxCoord GetCharHeight() const;
  54     virtual wxCoord GetCharWidth() const;
  55     virtual void DoGetTextExtent(const wxString& string,
  56                                  wxCoord *x, wxCoord *y,
  57                                  wxCoord *descent = NULL,
  58                                  wxCoord *externalLeading = NULL,
  59                                  wxFont *theFont = NULL) const;
  60
  61     virtual bool CanDrawBitmap() const;
  62     virtual bool CanGetTextExtent() const;
  63     virtual int GetDepth() const;
  64     virtual wxSize GetPPI() const;
  65
  66     virtual void SetMapMode(int mode);
  67     virtual void SetUserScale(double x, double y);
  68
  69     virtual void SetLogicalScale(double x, double y);
  70     virtual void SetLogicalOrigin(wxCoord x, wxCoord y);
  71     virtual void SetDeviceOrigin(wxCoord x, wxCoord y);
  72     virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp);
  73     virtual void SetLogicalFunction(int function);
  74
  75     virtual void SetTextForeground(const wxColour& colour) ;
  76     virtual void SetTextBackground(const wxColour& colour) ;
  77
  78     void ComputeScaleAndOrigin(void);
  79 protected:
  80     virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
  81                              int style = wxFLOOD_SURFACE);
  82
  83     virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const;
  84
  85     virtual void DoDrawPoint(wxCoord x, wxCoord y);
  86     virtual void DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2);
  87
  88     virtual void DoDrawArc(wxCoord x1, wxCoord y1,
  89                            wxCoord x2, wxCoord y2,
  90                            wxCoord xc, wxCoord yc);
  91
  92     virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
  93                                    double sa, double ea);
  94
  95     virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
  96     virtual void DoDrawRoundedRectangle(wxCoord x, wxCoord y,
  97                                         wxCoord width, wxCoord height,
  98                                         double radius);
  99     virtual void DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
 100
 101     virtual void DoCrossHair(wxCoord x, wxCoord y);
 102
 103     virtual void DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y);
 104     virtual void DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,
 105                               bool useMask = FALSE);
 106
 107     virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y);
 108     virtual void DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y,
 109                                    double angle);
 110
 111     virtual bool DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
 112                         wxDC *source, wxCoord xsrc, wxCoord ysrc,
 113                         int rop = wxCOPY, bool useMask = FALSE, wxCoord xsrcMask = -1, wxCoord ysrcMask = -1);
 114
 115     // this is gnarly - we can't even call this function DoSetClippingRegion()
 116     // because of virtual function hiding
 117     virtual void DoSetClippingRegionAsRegion(const wxRegion& region);
 118     virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
 119                                      wxCoord width, wxCoord height);
 120
 121     virtual void DoGetSize(int *width, int *height) const;
 122     virtual void DoGetSizeMM(int* width, int* height) const;
 123
 124     virtual void DoDrawLines(int n, wxPoint points[],
 125                              wxCoord xoffset, wxCoord yoffset);
 126     virtual void DoDrawPolygon(int n, wxPoint points[],
 127                                wxCoord xoffset, wxCoord yoffset,
 128                                int fillStyle = wxODDEVEN_RULE);
 129
 130 };
 131
 132 #endif // __WX_COCOA_DC_H__