include/wx/gtk/dcclient.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        dcclient.h
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #ifndef __GTKDCCLIENTH__
  11 #define __GTKDCCLIENTH__
  12
  13 #include "wx/dc.h"
  14 #include "wx/region.h"
  15
  16 class WXDLLIMPEXP_CORE wxWindow;
  17
  18 //-----------------------------------------------------------------------------
  19 // wxWindowDC
  20 //-----------------------------------------------------------------------------
  21
  22 class WXDLLIMPEXP_CORE wxWindowDC : public wxDC
  23 {
  24 public:
  25     wxWindowDC();
  26     wxWindowDC( wxWindow *win );
  27
  28     virtual ~wxWindowDC();
  29
  30     virtual bool CanDrawBitmap() const { return true; }
  31     virtual bool CanGetTextExtent() const { return true; }
  32
  33 protected:
  34     virtual void DoGetSize(int *width, int *height) const;
  35     virtual bool DoFloodFill( wxCoord x, wxCoord y, const wxColour& col, int style=wxFLOOD_SURFACE );
  36     virtual bool DoGetPixel( wxCoord x1, wxCoord y1, wxColour *col ) const;
  37
  38     virtual void DoDrawLine( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2 );
  39     virtual void DoCrossHair( wxCoord x, wxCoord y );
  40     virtual void DoDrawArc( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2,
  41                             wxCoord xc, wxCoord yc );
  42     virtual void DoDrawEllipticArc( wxCoord x, wxCoord y, wxCoord width, wxCoord height,
  43                                     double sa, double ea );
  44     virtual void DoDrawPoint( wxCoord x, wxCoord y );
  45
  46     virtual void DoDrawLines(int n, wxPoint points[],
  47                              wxCoord xoffset, wxCoord yoffset);
  48     virtual void DoDrawPolygon(int n, wxPoint points[],
  49                                wxCoord xoffset, wxCoord yoffset,
  50                                int fillStyle = wxODDEVEN_RULE);
  51
  52     virtual void DoDrawRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoord height );
  53     virtual void DoDrawRoundedRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius = 20.0 );
  54     virtual void DoDrawEllipse( wxCoord x, wxCoord y, wxCoord width, wxCoord height );
  55
  56     virtual void DoDrawIcon( const wxIcon &icon, wxCoord x, wxCoord y );
  57     virtual void DoDrawBitmap( const wxBitmap &bitmap, wxCoord x, wxCoord y,
  58                                bool useMask = false );
  59
  60     virtual bool DoBlit( wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
  61                          wxDC *source, wxCoord xsrc, wxCoord ysrc,
  62                          int logical_func = wxCOPY, bool useMask = false, wxCoord xsrcMask = -1, wxCoord ysrcMask = -1 );
  63
  64     virtual void DoDrawText( const wxString &text, wxCoord x, wxCoord y );
  65     virtual void DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y,
  66                                    double angle);
  67     virtual void DoGetTextExtent( const wxString &string,
  68                                 wxCoord *width, wxCoord *height,
  69                                 wxCoord *descent = (wxCoord *) NULL,
  70                                 wxCoord *externalLeading = (wxCoord *) NULL,
  71                                 wxFont *theFont = (wxFont *) NULL) const;
  72     virtual void DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoord height );
  73     virtual void DoSetClippingRegionAsRegion( const wxRegion &region );
  74
  75
  76 public:
  77     virtual wxCoord GetCharWidth() const;
  78     virtual wxCoord GetCharHeight() const;
  79
  80     virtual void Clear();
  81
  82     virtual void SetFont( const wxFont &font );
  83     virtual void SetPen( const wxPen &pen );
  84     virtual void SetBrush( const wxBrush &brush );
  85     virtual void SetBackground( const wxBrush &brush );
  86     virtual void SetLogicalFunction( int function );
  87     virtual void SetTextForeground( const wxColour &col );
  88     virtual void SetTextBackground( const wxColour &col );
  89     virtual void SetBackgroundMode( int mode );
  90     virtual void SetPalette( const wxPalette& palette );
  91
  92     virtual void DestroyClippingRegion();
  93
  94     // Resolution in pixels per logical inch
  95     virtual wxSize GetPPI() const;
  96     virtual int GetDepth() const;
  97
  98     // overrriden here for RTL
  99     virtual void SetDeviceOrigin( wxCoord x, wxCoord y );
 100     virtual void SetAxisOrientation( bool xLeftRight, bool yBottomUp );
 101
 102 // protected:
 103     // implementation
 104     // --------------
 105
 106     GdkWindow    *m_window;
 107     GdkGC        *m_penGC;
 108     GdkGC        *m_brushGC;
 109     GdkGC        *m_textGC;
 110     GdkGC        *m_bgGC;
 111     GdkColormap  *m_cmap;
 112     bool          m_isMemDC;
 113     bool          m_isScreenDC;
 114     wxWindow     *m_owner;
 115     wxRegion      m_currentClippingRegion;
 116     wxRegion      m_paintClippingRegion;
 117
 118     // PangoContext stuff for GTK 2.0
 119     PangoContext *m_context;
 120     PangoLayout *m_layout;
 121     PangoFontDescription *m_fontdesc;
 122
 123     void SetUpDC();
 124     void Destroy();
 125
 126 protected:
 127     virtual void ComputeScaleAndOrigin();
 128
 129     GdkWindow *GetWindow() { return m_window; }
 130
 131 private:
 132     DECLARE_DYNAMIC_CLASS(wxWindowDC)
 133 };
 134
 135 //-----------------------------------------------------------------------------
 136 // wxClientDC
 137 //-----------------------------------------------------------------------------
 138
 139 class WXDLLIMPEXP_CORE wxClientDC : public wxWindowDC
 140 {
 141 public:
 142     wxClientDC() { }
 143     wxClientDC( wxWindow *win );
 144
 145 protected:
 146     virtual void DoGetSize(int *width, int *height) const;
 147
 148 private:
 149     DECLARE_DYNAMIC_CLASS(wxClientDC)
 150 };
 151
 152 //-----------------------------------------------------------------------------
 153 // wxPaintDC
 154 //-----------------------------------------------------------------------------
 155
 156 class WXDLLIMPEXP_CORE wxPaintDC : public wxClientDC
 157 {
 158 public:
 159     wxPaintDC() { }
 160     wxPaintDC( wxWindow *win );
 161
 162 private:
 163     DECLARE_DYNAMIC_CLASS(wxPaintDC)
 164 };
 165
 166 #endif // __GTKDCCLIENTH__