include/wx/x11/dcclient.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        dcclient.h
   3 // Purpose:     wxClientDC, wxPaintDC and wxWindowDC classes
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_DCCLIENT_H_
  13 #define _WX_DCCLIENT_H_
  14
  15 #include "wx/dc.h"
  16 #include "wx/region.h"
  17
  18 // -----------------------------------------------------------------------------
  19 // fwd declarations
  20 // -----------------------------------------------------------------------------
  21
  22 class WXDLLIMPEXP_FWD_CORE wxWindow;
  23
  24 class WXDLLIMPEXP_FWD_CORE wxWindowDC;
  25 class WXDLLIMPEXP_FWD_CORE wxPaintDC;
  26 class WXDLLIMPEXP_FWD_CORE wxClientDC;
  27
  28 //-----------------------------------------------------------------------------
  29 // wxWindowDC
  30 //-----------------------------------------------------------------------------
  31
  32 class WXDLLIMPEXP_CORE wxWindowDC : public wxDC
  33 {
  34 public:
  35     wxWindowDC() { Init(); }
  36     wxWindowDC( wxWindow *win );
  37
  38     virtual ~wxWindowDC();
  39
  40     virtual bool CanDrawBitmap() const { return true; }
  41     virtual bool CanGetTextExtent() const { return true; }
  42
  43 protected:
  44     virtual void DoGetSize(int *width, int *height) const;
  45     virtual bool DoFloodFill( wxCoord x, wxCoord y, const wxColour& col, int style = wxFLOOD_SURFACE );
  46     virtual bool DoGetPixel( wxCoord x, wxCoord y, wxColour *col ) const;
  47
  48     virtual void DoDrawPoint(wxCoord x, wxCoord y);
  49     virtual void DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2);
  50
  51     virtual void DoDrawIcon( const wxIcon &icon, wxCoord x, wxCoord y );
  52     virtual void DoDrawBitmap( const wxBitmap &bitmap, wxCoord x, wxCoord y,
  53                                bool useMask = false );
  54
  55     virtual void DoDrawArc(wxCoord x1, wxCoord y1,
  56         wxCoord x2, wxCoord y2,
  57         wxCoord xc, wxCoord yc);
  58     virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
  59         double sa, double ea);
  60
  61     virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
  62     virtual void DoDrawRoundedRectangle(wxCoord x, wxCoord y,
  63         wxCoord width, wxCoord height,
  64         double radius);
  65     virtual void DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
  66
  67     virtual void DoCrossHair(wxCoord x, wxCoord y);
  68
  69     virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y);
  70     virtual void DoDrawRotatedText(const wxString &text, wxCoord x, wxCoord y, double angle);
  71
  72     virtual bool DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
  73         wxDC *source, wxCoord xsrc, wxCoord ysrc,
  74         int rop = wxCOPY, bool useMask = false, wxCoord xsrcMask = -1, wxCoord ysrcMask = -1);
  75
  76     virtual void DoSetClippingRegionAsRegion(const wxRegion& region);
  77     virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
  78         wxCoord width, wxCoord height);
  79
  80     virtual void DoDrawLines(int n, wxPoint points[],
  81         wxCoord xoffset, wxCoord yoffset);
  82     virtual void DoDrawPolygon(int n, wxPoint points[],
  83         wxCoord xoffset, wxCoord yoffset,
  84         int fillStyle = wxODDEVEN_RULE);
  85
  86
  87 public:
  88     virtual void Clear();
  89
  90     virtual void SetFont(const wxFont& font);
  91     virtual void SetPen(const wxPen& pen);
  92     virtual void SetBrush(const wxBrush& brush);
  93     virtual void SetBackground(const wxBrush& brush);
  94     virtual void SetBackgroundMode(int mode);
  95     virtual void SetPalette(const wxPalette& palette);
  96     virtual void SetLogicalFunction( int function );
  97
  98     virtual void SetTextForeground(const wxColour& colour);
  99     virtual void SetTextBackground(const wxColour& colour);
 100
 101     virtual wxCoord GetCharHeight() const;
 102     virtual wxCoord GetCharWidth() const;
 103
 104     virtual int GetDepth() const;
 105     virtual wxSize GetPPI() const;
 106
 107     virtual void DestroyClippingRegion();
 108     WXWindow GetWindow() const { return m_window; }
 109
 110     virtual void ComputeScaleAndOrigin();
 111
 112 protected:
 113     // implementation
 114     // --------------
 115     virtual void DoGetTextExtent(const wxString& string,
 116         wxCoord *x, wxCoord *y,
 117         wxCoord *descent = NULL,
 118         wxCoord *externalLeading = NULL,
 119         const wxFont *theFont = NULL) const;
 120
 121     void Init();
 122
 123     WXDisplay    *m_display;
 124     WXWindow      m_window;
 125     WXGC          m_penGC;
 126     WXGC          m_brushGC;
 127     WXGC          m_textGC;
 128     WXGC          m_bgGC;
 129     WXColormap    m_cmap;
 130     bool          m_isMemDC;
 131     bool          m_isScreenDC;
 132     wxWindow     *m_owner;
 133     wxRegion      m_currentClippingRegion;
 134     wxRegion      m_paintClippingRegion;
 135
 136 #if wxUSE_UNICODE
 137     PangoContext *m_context;
 138     PangoFontDescription *m_fontdesc;
 139 #endif
 140
 141     void SetUpDC();
 142     void Destroy();
 143
 144 private:
 145     DECLARE_DYNAMIC_CLASS(wxWindowDC)
 146 };
 147
 148 //-----------------------------------------------------------------------------
 149 // wxClientDC
 150 //-----------------------------------------------------------------------------
 151
 152 class WXDLLIMPEXP_CORE wxClientDC : public wxWindowDC
 153 {
 154 public:
 155     wxClientDC() { }
 156     wxClientDC( wxWindow *win );
 157
 158 protected:
 159     virtual void DoGetSize(int *width, int *height) const;
 160
 161 private:
 162     DECLARE_DYNAMIC_CLASS(wxClientDC)
 163 };
 164
 165 //-----------------------------------------------------------------------------
 166 // wxPaintDC
 167 //-----------------------------------------------------------------------------
 168
 169 class WXDLLIMPEXP_CORE wxPaintDC : public wxClientDC
 170 {
 171 public:
 172     wxPaintDC() { }
 173     wxPaintDC( wxWindow *win );
 174
 175 private:
 176     DECLARE_DYNAMIC_CLASS(wxPaintDC)
 177 };
 178
 179 #endif
 180 // _WX_DCCLIENT_H_