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 _WX_GTKDCCLIENT_H_
  11 #define _WX_GTKDCCLIENT_H_
  12
  13 #include "wx/gtk/dc.h"
  14 #include "wx/dcclient.h"
  15 #include "wx/region.h"
  16
  17 class WXDLLIMPEXP_FWD_CORE wxWindow;
  18
  19 //-----------------------------------------------------------------------------
  20 // wxWindowDCImpl
  21 //-----------------------------------------------------------------------------
  22
  23 class WXDLLIMPEXP_CORE wxWindowDCImpl : public wxGTKDCImpl
  24 {
  25 public:
  26     wxWindowDCImpl( wxDC *owner );
  27     wxWindowDCImpl( wxDC *owner, wxWindow *win );
  28
  29     virtual ~wxWindowDCImpl();
  30
  31     virtual bool CanDrawBitmap() const { return true; }
  32     virtual bool CanGetTextExtent() const { return true; }
  33
  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                                 const wxFont *theFont = (wxFont *) NULL) const;
  72     virtual bool DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const;
  73     virtual void DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoord height );
  74     virtual void DoSetDeviceClippingRegion( const wxRegion &region );
  75
  76     virtual wxCoord GetCharWidth() const;
  77     virtual wxCoord GetCharHeight() const;
  78
  79     virtual void Clear();
  80
  81     virtual void SetFont( const wxFont &font );
  82     virtual void SetPen( const wxPen &pen );
  83     virtual void SetBrush( const wxBrush &brush );
  84     virtual void SetBackground( const wxBrush &brush );
  85     virtual void SetLogicalFunction( int function );
  86     virtual void SetTextForeground( const wxColour &col );
  87     virtual void SetTextBackground( const wxColour &col );
  88     virtual void SetBackgroundMode( int mode );
  89     virtual void SetPalette( const wxPalette& palette );
  90
  91     virtual void DestroyClippingRegion();
  92
  93     // Resolution in pixels per logical inch
  94     virtual wxSize GetPPI() const;
  95     virtual int GetDepth() const;
  96
  97     // overrriden here for RTL
  98     virtual void SetDeviceOrigin( wxCoord x, wxCoord y );
  99     virtual void SetAxisOrientation( bool xLeftRight, bool yBottomUp );
 100
 101 // protected:
 102     // implementation
 103     // --------------
 104
 105     GdkWindow    *m_gdkwindow;
 106     GdkGC        *m_penGC;
 107     GdkGC        *m_brushGC;
 108     GdkGC        *m_textGC;
 109     GdkGC        *m_bgGC;
 110     GdkColormap  *m_cmap;
 111     bool          m_isScreenDC;
 112     wxRegion      m_currentClippingRegion;
 113     wxRegion      m_paintClippingRegion;
 114
 115     // PangoContext stuff for GTK 2.0
 116     PangoContext *m_context;
 117     PangoLayout *m_layout;
 118     PangoFontDescription *m_fontdesc;
 119
 120     void SetUpDC( bool ismem = false );
 121     void Destroy();
 122
 123     virtual void ComputeScaleAndOrigin();
 124
 125     virtual GdkWindow *GetGDKWindow() const { return m_gdkwindow; }
 126
 127 private:
 128     void DrawingSetup(GdkGC*& gc, bool& originChanged);
 129
 130     // return true if the rectangle specified by the parameters is entirely
 131     // outside of the current clipping region
 132     bool IsOutsideOfClippingRegion(int x, int y, int w, int h);
 133
 134     // remove the current clipping mask and set the clipping region
 135     void RemoveClipMask(GdkGC *gc);
 136
 137     // return the mask equal to the intersection of the original one with the
 138     // clipping region
 139     GdkBitmap *GetClippedMask(GdkBitmap *mask, int w, int h,
 140                               int x, int y,
 141                               int xsrcMask, int ysrcMask);
 142
 143     void DoDrawMonoBitmap(const wxBitmap& bitmap,
 144                           int bmp_w, int bmp_h,
 145                           int xsrc, int ysrc,
 146                           int xdest, int ydest,
 147                           int width, int height);
 148
 149     DECLARE_ABSTRACT_CLASS(wxWindowDCImpl)
 150 };
 151
 152 //-----------------------------------------------------------------------------
 153 // wxClientDCImpl
 154 //-----------------------------------------------------------------------------
 155
 156 class WXDLLIMPEXP_CORE wxClientDCImpl : public wxWindowDCImpl
 157 {
 158 public:
 159     wxClientDCImpl( wxDC *owner );
 160     wxClientDCImpl( wxDC *owner, wxWindow *win );
 161
 162     virtual void DoGetSize(int *width, int *height) const;
 163
 164     DECLARE_ABSTRACT_CLASS(wxClientDCImpl)
 165 };
 166
 167 //-----------------------------------------------------------------------------
 168 // wxPaintDCImpl
 169 //-----------------------------------------------------------------------------
 170
 171 class WXDLLIMPEXP_CORE wxPaintDCImpl : public wxClientDCImpl
 172 {
 173 public:
 174     wxPaintDCImpl( wxDC *owner );
 175     wxPaintDCImpl( wxDC *owner, wxWindow *win );
 176
 177     DECLARE_ABSTRACT_CLASS(wxPaintDCImpl)
 178 };
 179
 180 #endif // _WX_GTKDCCLIENT_H_