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 #ifdef __GNUG__
  14 #pragma interface
  15 #endif
  16
  17 #include "wx/dc.h"
  18 #include "wx/window.h"
  19
  20 //-----------------------------------------------------------------------------
  21 // classes
  22 //-----------------------------------------------------------------------------
  23
  24 class wxWindowDC;
  25 class wxPaintDC;
  26 class wxClientDC;
  27
  28 //-----------------------------------------------------------------------------
  29 // wxWindowDC
  30 //-----------------------------------------------------------------------------
  31
  32 class wxWindowDC : public wxDC
  33 {
  34 public:
  35     wxWindowDC();
  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 void DoFloodFill( wxCoord x, wxCoord y, const wxColour& col, int style=wxFLOOD_SURFACE );
  46     virtual bool DoGetPixel( wxCoord x1, wxCoord y1, wxColour *col ) const;
  47
  48     virtual void DoDrawLine( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2 );
  49     virtual void DoCrossHair( wxCoord x, wxCoord y );
  50     virtual void DoDrawArc( wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2,
  51                             wxCoord xc, wxCoord yc );
  52     virtual void DoDrawEllipticArc( wxCoord x, wxCoord y, wxCoord width, wxCoord height,
  53                                     double sa, double ea );
  54     virtual void DoDrawPoint( wxCoord x, wxCoord y );
  55
  56     virtual void DoDrawLines(int n, wxPoint points[],
  57                              wxCoord xoffset, wxCoord yoffset);
  58     virtual void DoDrawPolygon(int n, wxPoint points[],
  59                                wxCoord xoffset, wxCoord yoffset,
  60                                int fillStyle = wxODDEVEN_RULE);
  61
  62     virtual void DoDrawRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoord height );
  63     virtual void DoDrawRoundedRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius = 20.0 );
  64     virtual void DoDrawEllipse( wxCoord x, wxCoord y, wxCoord width, wxCoord height );
  65
  66     virtual void DoDrawIcon( const wxIcon &icon, wxCoord x, wxCoord y );
  67     virtual void DoDrawBitmap( const wxBitmap &bitmap, wxCoord x, wxCoord y,
  68                                bool useMask = FALSE );
  69
  70     virtual bool DoBlit( wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
  71                          wxDC *source, wxCoord xsrc, wxCoord ysrc,
  72                          int logical_func = wxCOPY, bool useMask = FALSE, wxCoord xsrcMask = -1, wxCoord ysrcMask = -1 );
  73
  74     virtual void DoDrawText( const wxString &text, wxCoord x, wxCoord y );
  75     virtual void DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y,
  76                                    double angle);
  77     virtual void DoGetTextExtent( const wxString &string,
  78                                 wxCoord *width, wxCoord *height,
  79                                 wxCoord *descent = (wxCoord *) NULL,
  80                                 wxCoord *externalLeading = (wxCoord *) NULL,
  81                                 wxFont *theFont = (wxFont *) NULL) const;
  82
  83 public:
  84     virtual wxCoord GetCharWidth() const;
  85     virtual wxCoord GetCharHeight() const;
  86
  87     virtual void Clear();
  88
  89     virtual void SetFont( const wxFont &font );
  90     virtual void SetPen( const wxPen &pen );
  91     virtual void SetBrush( const wxBrush &brush );
  92     virtual void SetBackground( const wxBrush &brush );
  93     virtual void SetLogicalFunction( int function );
  94     virtual void SetTextForeground( const wxColour &col );
  95     virtual void SetTextBackground( const wxColour &col );
  96     virtual void SetBackgroundMode( int mode );
  97     virtual void SetPalette( const wxPalette& palette );
  98
  99     virtual void DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoord height );
 100     virtual void DestroyClippingRegion();
 101     virtual void DoSetClippingRegionAsRegion( const wxRegion &region  );
 102
 103     // Resolution in pixels per logical inch
 104     virtual wxSize GetPPI() const;
 105     virtual int GetDepth() const;
 106
 107     // implementation
 108     // --------------
 109
 110     GdkWindow    *m_window;
 111     GdkGC        *m_penGC;
 112     GdkGC        *m_brushGC;
 113     GdkGC        *m_textGC;
 114     GdkGC        *m_bgGC;
 115     GdkColormap  *m_cmap;
 116     bool          m_isMemDC;
 117     bool          m_isScreenDC;
 118     wxWindow     *m_owner;
 119     wxRegion      m_currentClippingRegion;
 120     wxRegion      m_paintClippingRegion;
 121 #ifdef __WXGTK20__
 122     PangoContext *m_context;
 123     PangoFontDescription *m_fontdesc;
 124 #endif
 125
 126     void SetUpDC();
 127     void Destroy();
 128     void ComputeScaleAndOrigin();
 129
 130     GdkWindow *GetWindow() { return m_window; }
 131
 132 private:
 133     DECLARE_DYNAMIC_CLASS(wxWindowDC)
 134 };
 135
 136 //-----------------------------------------------------------------------------
 137 // wxClientDC
 138 //-----------------------------------------------------------------------------
 139
 140 class wxClientDC : public wxWindowDC
 141 {
 142 public:
 143     wxClientDC() { }
 144     wxClientDC( wxWindow *win );
 145
 146 protected:
 147     virtual void DoGetSize(int *width, int *height) const;
 148
 149 private:
 150     DECLARE_DYNAMIC_CLASS(wxClientDC)
 151 };
 152
 153 //-----------------------------------------------------------------------------
 154 // wxPaintDC
 155 //-----------------------------------------------------------------------------
 156
 157 class wxPaintDC : public wxClientDC
 158 {
 159 public:
 160     wxPaintDC() { }
 161     wxPaintDC( wxWindow *win );
 162
 163 private:
 164     DECLARE_DYNAMIC_CLASS(wxPaintDC)
 165 };
 166
 167 #endif // __GTKDCCLIENTH__