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 class WXDLLEXPORT wxDC;
  16 WX_DECLARE_LIST(wxDC, wxCocoaDCStack);
  17
  18 //=========================================================================
  19 // wxDC
  20 //=========================================================================
  21 class WXDLLEXPORT wxDC: public wxDCBase
  22 {
  23     DECLARE_DYNAMIC_CLASS(wxDC)
  24     DECLARE_NO_COPY_CLASS(wxDC)
  25 //-------------------------------------------------------------------------
  26 // Initialization
  27 //-------------------------------------------------------------------------
  28 public:
  29     wxDC();
  30     ~wxDC();
  31
  32 //-------------------------------------------------------------------------
  33 // wxCocoa specifics
  34 //-------------------------------------------------------------------------
  35 public:
  36     static void CocoaInitializeTextSystem();
  37     static void CocoaShutdownTextSystem();
  38     static WX_NSTextStorage sm_cocoaNSTextStorage;
  39     static WX_NSLayoutManager sm_cocoaNSLayoutManager;
  40     static WX_NSTextContainer sm_cocoaNSTextContainer;
  41 protected:
  42 // DC stack
  43     static wxCocoaDCStack sm_cocoaDCStack;
  44     virtual bool CocoaLockFocus();
  45     virtual bool CocoaUnlockFocus();
  46     bool CocoaUnwindStackAndTakeFocus();
  47     inline bool CocoaTakeFocus()
  48     {
  49         wxCocoaDCStack::Node *node = sm_cocoaDCStack.GetFirst();
  50         if(node && (node->GetData() == this))
  51             return true;
  52         return CocoaUnwindStackAndTakeFocus();
  53     }
  54     void CocoaUnwindStackAndLoseFocus();
  55 // DC flipping/transformation
  56     void CocoaApplyTransformations();
  57     float m_cocoaHeight;
  58     bool m_cocoaFlipped;
  59 // Blitting
  60     virtual bool CocoaDoBlitOnFocusedDC(wxCoord xdest, wxCoord ydest,
  61         wxCoord width, wxCoord height, wxCoord xsrc, wxCoord ysrc,
  62         int logicalFunc, bool useMask, wxCoord xsrcMask, wxCoord ysrcMask);
  63 //-------------------------------------------------------------------------
  64 // Implementation
  65 //-------------------------------------------------------------------------
  66 public:
  67     // implement base class pure virtuals
  68     // ----------------------------------
  69
  70     virtual void Clear();
  71
  72     virtual bool StartDoc( const wxString& WXUNUSED(message) ) { return TRUE; }
  73     virtual void EndDoc(void) {};
  74
  75     virtual void StartPage(void) {};
  76     virtual void EndPage(void) {};
  77
  78     virtual void SetFont(const wxFont& font) {}
  79     virtual void SetPen(const wxPen& pen);
  80     virtual void SetBrush(const wxBrush& brush);
  81     virtual void SetBackground(const wxBrush& brush);
  82     virtual void SetBackgroundMode(int mode) { m_backgroundMode = mode; }
  83     virtual void SetPalette(const wxPalette& palette);
  84
  85     virtual void DestroyClippingRegion();
  86
  87     virtual wxCoord GetCharHeight() const;
  88     virtual wxCoord GetCharWidth() const;
  89     virtual void DoGetTextExtent(const wxString& string,
  90                                  wxCoord *x, wxCoord *y,
  91                                  wxCoord *descent = NULL,
  92                                  wxCoord *externalLeading = NULL,
  93                                  wxFont *theFont = NULL) const;
  94
  95     virtual bool CanDrawBitmap() const;
  96     virtual bool CanGetTextExtent() const;
  97     virtual int GetDepth() const;
  98     virtual wxSize GetPPI() const;
  99
 100     virtual void SetMapMode(int mode);
 101     virtual void SetUserScale(double x, double y);
 102
 103     virtual void SetLogicalScale(double x, double y);
 104     virtual void SetLogicalOrigin(wxCoord x, wxCoord y);
 105     virtual void SetDeviceOrigin(wxCoord x, wxCoord y);
 106     virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp);
 107     virtual void SetLogicalFunction(int function);
 108
 109     virtual void SetTextForeground(const wxColour& colour) ;
 110     virtual void SetTextBackground(const wxColour& colour) ;
 111
 112     void ComputeScaleAndOrigin(void);
 113 protected:
 114     virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
 115                              int style = wxFLOOD_SURFACE);
 116
 117     virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const;
 118
 119     virtual void DoDrawPoint(wxCoord x, wxCoord y);
 120     virtual void DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2);
 121
 122     virtual void DoDrawArc(wxCoord x1, wxCoord y1,
 123                            wxCoord x2, wxCoord y2,
 124                            wxCoord xc, wxCoord yc);
 125
 126     virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
 127                                    double sa, double ea);
 128
 129     virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
 130     virtual void DoDrawRoundedRectangle(wxCoord x, wxCoord y,
 131                                         wxCoord width, wxCoord height,
 132                                         double radius);
 133     virtual void DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
 134
 135     virtual void DoCrossHair(wxCoord x, wxCoord y);
 136
 137     virtual void DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y);
 138     virtual void DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,
 139                               bool useMask = FALSE);
 140
 141     virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y);
 142     virtual void DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y,
 143                                    double angle);
 144
 145     virtual bool DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
 146                         wxDC *source, wxCoord xsrc, wxCoord ysrc,
 147                         int rop = wxCOPY, bool useMask = FALSE, wxCoord xsrcMask = -1, wxCoord ysrcMask = -1);
 148
 149     // this is gnarly - we can't even call this function DoSetClippingRegion()
 150     // because of virtual function hiding
 151     virtual void DoSetClippingRegionAsRegion(const wxRegion& region);
 152     virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
 153                                      wxCoord width, wxCoord height);
 154
 155     virtual void DoGetSize(int *width, int *height) const;
 156     virtual void DoGetSizeMM(int* width, int* height) const;
 157
 158     virtual void DoDrawLines(int n, wxPoint points[],
 159                              wxCoord xoffset, wxCoord yoffset);
 160     virtual void DoDrawPolygon(int n, wxPoint points[],
 161                                wxCoord xoffset, wxCoord yoffset,
 162                                int fillStyle = wxODDEVEN_RULE);
 163 };
 164
 165 #endif // __WX_COCOA_DC_H__