include/wx/gtk/dcclient.h

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