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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  16 #pragma interface "dcclient.h"
  17 #endif
  18
  19 #include "wx/dc.h"
  20 #include "wx/region.h"
  21
  22 // -----------------------------------------------------------------------------
  23 // fwd declarations
  24 // -----------------------------------------------------------------------------
  25
  26 class wxWindow;
  27
  28 class wxWindowDC;
  29 class wxPaintDC;
  30 class wxClientDC;
  31
  32 //-----------------------------------------------------------------------------
  33 // wxWindowDC
  34 //-----------------------------------------------------------------------------
  35
  36 class wxWindowDC : public wxDC
  37 {
  38 public:
  39     wxWindowDC();
  40     wxWindowDC( wxWindow *win );
  41
  42     ~wxWindowDC();
  43
  44     virtual bool CanDrawBitmap() const { return true; }
  45     virtual bool CanGetTextExtent() const { return true; }
  46
  47 protected:
  48     virtual void DoGetSize(int *width, int *height) const;
  49     virtual bool DoFloodFill( wxCoord x, wxCoord y, const wxColour& col, int style = wxFLOOD_SURFACE );
  50     virtual bool DoGetPixel( wxCoord x, wxCoord y, wxColour *col ) const;
  51
  52     virtual void DoDrawPoint(wxCoord x, wxCoord y);
  53     virtual void DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2);
  54
  55     virtual void DoDrawIcon( const wxIcon &icon, wxCoord x, wxCoord y );
  56     virtual void DoDrawBitmap( const wxBitmap &bitmap, wxCoord x, wxCoord y,
  57                                bool useMask = false );
  58
  59     virtual void DoDrawArc(wxCoord x1, wxCoord y1,
  60         wxCoord x2, wxCoord y2,
  61         wxCoord xc, wxCoord yc);
  62     virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
  63         double sa, double ea);
  64
  65     virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
  66     virtual void DoDrawRoundedRectangle(wxCoord x, wxCoord y,
  67         wxCoord width, wxCoord height,
  68         double radius);
  69     virtual void DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
  70
  71     virtual void DoCrossHair(wxCoord x, wxCoord y);
  72
  73     virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y);
  74     virtual void DoDrawRotatedText(const wxString &text, wxCoord x, wxCoord y, double angle);
  75
  76     virtual bool DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
  77         wxDC *source, wxCoord xsrc, wxCoord ysrc,
  78         int rop = wxCOPY, bool useMask = false, wxCoord xsrcMask = -1, wxCoord ysrcMask = -1);
  79
  80     virtual void DoSetClippingRegionAsRegion(const wxRegion& region);
  81     virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
  82         wxCoord width, wxCoord height);
  83
  84     virtual void DoDrawLines(int n, wxPoint points[],
  85         wxCoord xoffset, wxCoord yoffset);
  86     virtual void DoDrawPolygon(int n, wxPoint points[],
  87         wxCoord xoffset, wxCoord yoffset,
  88         int fillStyle = wxODDEVEN_RULE);
  89
  90
  91 public:
  92     virtual void Clear();
  93
  94     virtual void SetFont(const wxFont& font);
  95     virtual void SetPen(const wxPen& pen);
  96     virtual void SetBrush(const wxBrush& brush);
  97     virtual void SetBackground(const wxBrush& brush);
  98     virtual void SetBackgroundMode(int mode);
  99     virtual void SetPalette(const wxPalette& palette);
 100     virtual void SetLogicalFunction( int function );
 101
 102     virtual void SetTextForeground(const wxColour& colour);
 103     virtual void SetTextBackground(const wxColour& colour);
 104
 105     virtual wxCoord GetCharHeight() const;
 106     virtual wxCoord GetCharWidth() const;
 107     virtual void DoGetTextExtent(const wxString& string,
 108         wxCoord *x, wxCoord *y,
 109         wxCoord *descent = NULL,
 110         wxCoord *externalLeading = NULL,
 111         wxFont *theFont = NULL) const;
 112
 113     virtual int GetDepth() const;
 114     virtual wxSize GetPPI() const;
 115
 116     virtual void DestroyClippingRegion();
 117     WXWindow GetWindow() const { return m_window; }
 118
 119 protected:
 120     // implementation
 121     // --------------
 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     virtual void ComputeScaleAndOrigin();
 144
 145 private:
 146     DECLARE_DYNAMIC_CLASS(wxWindowDC)
 147 };
 148
 149 //-----------------------------------------------------------------------------
 150 // wxClientDC
 151 //-----------------------------------------------------------------------------
 152
 153 class wxClientDC : public wxWindowDC
 154 {
 155 public:
 156     wxClientDC() { }
 157     wxClientDC( wxWindow *win );
 158
 159 protected:
 160     virtual void DoGetSize(int *width, int *height) const;
 161
 162 private:
 163     DECLARE_DYNAMIC_CLASS(wxClientDC)
 164 };
 165
 166 //-----------------------------------------------------------------------------
 167 // wxPaintDC
 168 //-----------------------------------------------------------------------------
 169
 170 class wxPaintDC : public wxClientDC
 171 {
 172 public:
 173     wxPaintDC() { }
 174     wxPaintDC( wxWindow *win );
 175
 176 private:
 177     DECLARE_DYNAMIC_CLASS(wxPaintDC)
 178 };
 179
 180 #endif
 181 // _WX_DCCLIENT_H_