include/wx/motif/dcclient.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/motif/dcclient.h
   3 // Purpose:     wxClientDCImpl, wxPaintDCImpl and wxWindowDCImpl classes
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     17/09/98
   7 // Copyright:   (c) Julian Smart
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 #ifndef _WX_DCCLIENT_H_
  12 #define _WX_DCCLIENT_H_
  13
  14 #include "wx/motif/dc.h"
  15
  16 class WXDLLIMPEXP_FWD_CORE wxWindow;
  17
  18 //-----------------------------------------------------------------------------
  19 // wxWindowDCImpl
  20 //-----------------------------------------------------------------------------
  21
  22 class WXDLLIMPEXP_CORE wxWindowDCImpl : public wxMotifDCImpl
  23 {
  24 public:
  25     wxWindowDCImpl(wxDC *owner);
  26     wxWindowDCImpl(wxDC *owner, wxWindow *win);
  27
  28     virtual ~wxWindowDCImpl();
  29
  30     // TODO this function is Motif-only for now - should it go into base class?
  31     void Clear(const wxRect& rect);
  32
  33     // implement base class pure virtuals
  34     // ----------------------------------
  35
  36     virtual void Clear();
  37
  38     virtual void SetFont(const wxFont& font);
  39     virtual void SetPen(const wxPen& pen);
  40     virtual void SetBrush(const wxBrush& brush);
  41     virtual void SetBackground(const wxBrush& brush);
  42     virtual void SetBackgroundMode(int mode);
  43     virtual void SetPalette(const wxPalette& palette);
  44     virtual void SetLogicalFunction( wxRasterOperationMode function );
  45
  46     virtual void SetTextForeground(const wxColour& colour);
  47     virtual void SetTextBackground(const wxColour& colour);
  48
  49     virtual wxCoord GetCharHeight() const;
  50     virtual wxCoord GetCharWidth() const;
  51     virtual void DoGetTextExtent(const wxString& string,
  52         wxCoord *x, wxCoord *y,
  53         wxCoord *descent = NULL,
  54         wxCoord *externalLeading = NULL,
  55         const wxFont *theFont = NULL) const;
  56
  57     virtual bool CanDrawBitmap() const;
  58     virtual bool CanGetTextExtent() const;
  59
  60     virtual int GetDepth() const;
  61     virtual wxSize GetPPI() const;
  62
  63     virtual void DestroyClippingRegion();
  64
  65     // Helper function for setting clipping
  66     void SetDCClipping(WXRegion region);
  67
  68     // implementation from now on
  69     // --------------------------
  70
  71     WXGC GetGC() const { return m_gc; }
  72     WXGC GetBackingGC() const { return m_gcBacking; }
  73     WXDisplay* GetDisplay() const { return m_display; }
  74     bool GetAutoSetting() const { return (m_autoSetting != 0); } // See comment in dcclient.cpp
  75     void SetAutoSetting(bool flag) { m_autoSetting = flag; }
  76
  77 protected:
  78     // note that this function will call colour.SetPixel,
  79     // and will do one of curCol = colour, curCol = wxWHITE, curCol = wxBLACK
  80     // roundToWhite has an effect for monochrome display only
  81     // if roundToWhite == true then the colour will be set to white unless
  82     // it is RGB 0x000000;if roundToWhite == true the colour wull be set to
  83     // black unless it id RGB 0xffffff
  84     WXPixel CalculatePixel(wxColour& colour, wxColour& curCol,
  85                            bool roundToWhite) const;
  86     // sets the foreground pixel taking into account the
  87     // currently selected logical operation
  88     void SetForegroundPixelWithLogicalFunction(WXPixel pixel);
  89
  90     virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
  91                              wxFloodFillStyle style = wxFLOOD_SURFACE);
  92
  93     virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const;
  94
  95     virtual void DoDrawPoint(wxCoord x, wxCoord y);
  96     virtual void DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2);
  97
  98     virtual void DoDrawArc(wxCoord x1, wxCoord y1,
  99         wxCoord x2, wxCoord y2,
 100         wxCoord xc, wxCoord yc);
 101     virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
 102         double sa, double ea);
 103
 104     virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
 105     virtual void DoDrawRoundedRectangle(wxCoord x, wxCoord y,
 106         wxCoord width, wxCoord height,
 107         double radius);
 108     virtual void DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
 109
 110     virtual void DoCrossHair(wxCoord x, wxCoord y);
 111
 112     virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y);
 113     virtual void DoDrawRotatedText(const wxString &text, wxCoord x, wxCoord y, double angle);
 114
 115     virtual bool DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
 116         wxDC *source, wxCoord xsrc, wxCoord ysrc,
 117         wxRasterOperationMode rop = wxCOPY, bool useMask = false, wxCoord xsrcMask = -1, wxCoord ysrcMask = -1);
 118
 119     virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
 120         wxCoord width, wxCoord height);
 121     virtual void DoSetDeviceClippingRegion(const wxRegion& region);
 122
 123     virtual void DoDrawLines(int n, const wxPoint points[],
 124         wxCoord xoffset, wxCoord yoffset);
 125     virtual void DoDrawPolygon(int n, const wxPoint points[],
 126         wxCoord xoffset, wxCoord yoffset,
 127         wxPolygonFillMode fillStyle = wxODDEVEN_RULE);
 128
 129     void DoGetSize( int *width, int *height ) const;
 130
 131     // common part of constructors
 132     void Init();
 133
 134     WXGC         m_gc;
 135     WXGC         m_gcBacking;
 136     WXDisplay*   m_display;
 137     wxWindow*    m_window;
 138     // Pixmap for drawing on
 139     WXPixmap     m_pixmap;
 140     // Last clipping region set on th GC, this is the combination
 141     // of paint clipping region and all user-defined clipping regions
 142     WXRegion     m_clipRegion;
 143
 144     // Not sure if we'll need all of these
 145     WXPixel      m_backgroundPixel;
 146     wxColour     m_currentColour;
 147     int          m_currentPenWidth ;
 148     int          m_currentPenJoin ;
 149     int          m_currentPenCap ;
 150     int          m_currentPenDashCount ;
 151     wxX11Dash*   m_currentPenDash ;
 152     wxBitmap     m_currentStipple ;
 153     int          m_currentStyle ;
 154     int          m_currentFill ;
 155     int          m_autoSetting ; // See comment in dcclient.cpp
 156
 157     DECLARE_DYNAMIC_CLASS(wxWindowDCImpl)
 158 };
 159
 160 class WXDLLIMPEXP_CORE wxPaintDCImpl: public wxWindowDCImpl
 161 {
 162 public:
 163     wxPaintDCImpl(wxDC *owner) : wxWindowDCImpl(owner) { }
 164     wxPaintDCImpl(wxDC *owner, wxWindow* win);
 165
 166     virtual ~wxPaintDCImpl();
 167
 168     DECLARE_DYNAMIC_CLASS(wxPaintDCImpl)
 169 };
 170
 171 class WXDLLIMPEXP_CORE wxClientDCImpl: public wxWindowDCImpl
 172 {
 173 public:
 174     wxClientDCImpl(wxDC *owner) : wxWindowDCImpl(owner) { }
 175     wxClientDCImpl(wxDC *owner, wxWindow* win)
 176         : wxWindowDCImpl(owner, win) { }
 177
 178     DECLARE_DYNAMIC_CLASS(wxClientDCImpl)
 179 };
 180
 181 #endif // _WX_DCCLIENT_H_