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 
CanDrawBitmap()26     virtual bool CanDrawBitmap() const { return true; }
CanGetTextExtent()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 
GetGDKWindow()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_
162