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/window.h"
  15
  16 //-----------------------------------------------------------------------------
  17 // classes
  18 //-----------------------------------------------------------------------------
  19
  20 class WXDLLIMPEXP_CORE wxWindowDC;
  21 class WXDLLIMPEXP_CORE wxPaintDC;
  22 class WXDLLIMPEXP_CORE wxClientDC;
  23
  24 //-----------------------------------------------------------------------------
  25 // wxWindowDC
  26 //-----------------------------------------------------------------------------
  27
  28 class WXDLLIMPEXP_CORE wxWindowDC : public wxDC
  29 {
  30 public:
  31     wxWindowDC();
  32     wxWindowDC( wxWindow *win );
  33
  34     virtual ~wxWindowDC();
  35
  36     virtual bool CanDrawBitmap() const { return true; }
  37     virtual bool CanGetTextExtent() const { return true; }
  38
  39 protected:
  40     virtual void DoGetSize(int *width, int *height) const;
  41     virtual bool DoFloodFill( wxCoord x, wxCoord y, const wxColour& col, int style=wxFLOOD_SURFACE );
  42     virtual bool DoGetPixel( wxCoord x1, wxCoord y1, wxColour *col ) const;
  43
  44     virtual void DoDrawLine( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2 );
  45     virtual void DoCrossHair( wxCoord x, wxCoord y );
  46     virtual void DoDrawArc( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2,
  47                             wxCoord xc, wxCoord yc );
  48     virtual void DoDrawEllipticArc( wxCoord x, wxCoord y, wxCoord width, wxCoord height,
  49                                     double sa, double ea );
  50     virtual void DoDrawPoint( wxCoord x, wxCoord y );
  51
  52     virtual void DoDrawLines(int n, wxPoint points[],
  53                              wxCoord xoffset, wxCoord yoffset);
  54     virtual void DoDrawPolygon(int n, wxPoint points[],
  55                                wxCoord xoffset, wxCoord yoffset,
  56                                int fillStyle = wxODDEVEN_RULE);
  57
  58     virtual void DoDrawRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoord height );
  59     virtual void DoDrawRoundedRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius = 20.0 );
  60     virtual void DoDrawEllipse( wxCoord x, wxCoord y, wxCoord width, wxCoord height );
  61
  62     virtual void DoDrawIcon( const wxIcon &icon, wxCoord x, wxCoord y );
  63     virtual void DoDrawBitmap( const wxBitmap &bitmap, wxCoord x, wxCoord y,
  64                                bool useMask = false );
  65
  66     virtual bool DoBlit( wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
  67                          wxDC *source, wxCoord xsrc, wxCoord ysrc,
  68                          int logical_func = wxCOPY, bool useMask = false, wxCoord xsrcMask = -1, wxCoord ysrcMask = -1 );
  69
  70     virtual void DoDrawText( const wxString &text, wxCoord x, wxCoord y );
  71     virtual void DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y,
  72                                    double angle);
  73     virtual void DoGetTextExtent( const wxString &string,
  74                                 wxCoord *width, wxCoord *height,
  75                                 wxCoord *descent = (wxCoord *) NULL,
  76                                 wxCoord *externalLeading = (wxCoord *) NULL,
  77                                 wxFont *theFont = (wxFont *) NULL) const;
  78     virtual void DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoord height );
  79     virtual void DoSetClippingRegionAsRegion( const wxRegion &region );
  80
  81 public:
  82     virtual wxCoord GetCharWidth() const;
  83     virtual wxCoord GetCharHeight() const;
  84
  85     virtual void Clear();
  86
  87     virtual void SetFont( const wxFont &font );
  88     virtual void SetPen( const wxPen &pen );
  89     virtual void SetBrush( const wxBrush &brush );
  90     virtual void SetBackground( const wxBrush &brush );
  91     virtual void SetLogicalFunction( int function );
  92     virtual void SetTextForeground( const wxColour &col );
  93     virtual void SetTextBackground( const wxColour &col );
  94     virtual void SetBackgroundMode( int mode );
  95     virtual void SetPalette( const wxPalette& palette );
  96
  97     virtual void DestroyClippingRegion();
  98
  99     // Resolution in pixels per logical inch
 100     virtual wxSize GetPPI() const;
 101     virtual int GetDepth() const;
 102
 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     virtual void ComputeScaleAndOrigin();
 126
 127     GdkWindow *GetWindow() { return m_window; }
 128
 129 private:
 130     DECLARE_DYNAMIC_CLASS(wxWindowDC)
 131 };
 132
 133 //-----------------------------------------------------------------------------
 134 // wxClientDC
 135 //-----------------------------------------------------------------------------
 136
 137 class WXDLLIMPEXP_CORE wxClientDC : public wxWindowDC
 138 {
 139 public:
 140     wxClientDC() { }
 141     wxClientDC( wxWindow *win );
 142
 143 protected:
 144     virtual void DoGetSize(int *width, int *height) const;
 145
 146 private:
 147     DECLARE_DYNAMIC_CLASS(wxClientDC)
 148 };
 149
 150 //-----------------------------------------------------------------------------
 151 // wxPaintDC
 152 //-----------------------------------------------------------------------------
 153
 154 class WXDLLIMPEXP_CORE wxPaintDC : public wxClientDC
 155 {
 156 public:
 157     wxPaintDC() { }
 158     wxPaintDC( wxWindow *win );
 159
 160 private:
 161     DECLARE_DYNAMIC_CLASS(wxPaintDC)
 162 };
 163
 164 #endif // __GTKDCCLIENTH__