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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: dcclient.h
3 // Purpose: wxClientDC, wxPaintDC and wxWindowDC classes
4 // Author: Julian Smart
5 // Modified by:
6 // Created: 17/09/98
7 // RCS-ID: $Id$
8 // Copyright: (c) Julian Smart
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 #ifndef _WX_DCCLIENT_H_
13 #define _WX_DCCLIENT_H_
14
15 #include "wx/dc.h"
16 #include "wx/region.h"
17
18 // -----------------------------------------------------------------------------
19 // fwd declarations
20 // -----------------------------------------------------------------------------
21
22 class WXDLLIMPEXP_FWD_CORE wxWindow;
23
24 class WXDLLIMPEXP_FWD_CORE wxWindowDC;
25 class WXDLLIMPEXP_FWD_CORE wxPaintDC;
26 class WXDLLIMPEXP_FWD_CORE wxClientDC;
27
28 //-----------------------------------------------------------------------------
29 // wxWindowDC
30 //-----------------------------------------------------------------------------
31
32 class WXDLLIMPEXP_CORE wxWindowDC : public wxDC
33 {
34 public:
35 wxWindowDC() { Init(); }
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 bool DoFloodFill( wxCoord x, wxCoord y, const wxColour& col, int style = wxFLOOD_SURFACE );
46 virtual bool DoGetPixel( wxCoord x, wxCoord y, wxColour *col ) const;
47
48 virtual void DoDrawPoint(wxCoord x, wxCoord y);
49 virtual void DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2);
50
51 virtual void DoDrawIcon( const wxIcon &icon, wxCoord x, wxCoord y );
52 virtual void DoDrawBitmap( const wxBitmap &bitmap, wxCoord x, wxCoord y,
53 bool useMask = false );
54
55 virtual void DoDrawArc(wxCoord x1, wxCoord y1,
56 wxCoord x2, wxCoord y2,
57 wxCoord xc, wxCoord yc);
58 virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
59 double sa, double ea);
60
61 virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
62 virtual void DoDrawRoundedRectangle(wxCoord x, wxCoord y,
63 wxCoord width, wxCoord height,
64 double radius);
65 virtual void DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
66
67 virtual void DoCrossHair(wxCoord x, wxCoord y);
68
69 virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y);
70 virtual void DoDrawRotatedText(const wxString &text, wxCoord x, wxCoord y, double angle);
71
72 virtual bool DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
73 wxDC *source, wxCoord xsrc, wxCoord ysrc,
74 int rop = wxCOPY, bool useMask = false, wxCoord xsrcMask = -1, wxCoord ysrcMask = -1);
75
76 virtual void DoSetClippingRegionAsRegion(const wxRegion& region);
77 virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
78 wxCoord width, wxCoord height);
79
80 virtual void DoDrawLines(int n, wxPoint points[],
81 wxCoord xoffset, wxCoord yoffset);
82 virtual void DoDrawPolygon(int n, wxPoint points[],
83 wxCoord xoffset, wxCoord yoffset,
84 int fillStyle = wxODDEVEN_RULE);
85
86
87 public:
88 virtual void Clear();
89
90 virtual void SetFont(const wxFont& font);
91 virtual void SetPen(const wxPen& pen);
92 virtual void SetBrush(const wxBrush& brush);
93 virtual void SetBackground(const wxBrush& brush);
94 virtual void SetBackgroundMode(int mode);
95 virtual void SetPalette(const wxPalette& palette);
96 virtual void SetLogicalFunction( int function );
97
98 virtual void SetTextForeground(const wxColour& colour);
99 virtual void SetTextBackground(const wxColour& colour);
100
101 virtual wxCoord GetCharHeight() const;
102 virtual wxCoord GetCharWidth() const;
103
104 virtual int GetDepth() const;
105 virtual wxSize GetPPI() const;
106
107 virtual void DestroyClippingRegion();
108 WXWindow GetWindow() const { return m_window; }
109
110 virtual void ComputeScaleAndOrigin();
111
112 protected:
113 // implementation
114 // --------------
115 virtual void DoGetTextExtent(const wxString& string,
116 wxCoord *x, wxCoord *y,
117 wxCoord *descent = NULL,
118 wxCoord *externalLeading = NULL,
119 const wxFont *theFont = NULL) const;
120
121 void Init();
122
123 WXDisplay *m_display;
124 WXWindow m_window;
125 WXGC m_penGC;
126 WXGC m_brushGC;
127 WXGC m_textGC;
128 WXGC m_bgGC;
129 WXColormap m_cmap;
130 bool m_isMemDC;
131 bool m_isScreenDC;
132 wxWindow *m_owner;
133 wxRegion m_currentClippingRegion;
134 wxRegion m_paintClippingRegion;
135
136 #if wxUSE_UNICODE
137 PangoContext *m_context;
138 PangoFontDescription *m_fontdesc;
139 #endif
140
141 void SetUpDC();
142 void Destroy();
143
144 private:
145 DECLARE_DYNAMIC_CLASS(wxWindowDC)
146 };
147
148 //-----------------------------------------------------------------------------
149 // wxClientDC
150 //-----------------------------------------------------------------------------
151
152 class WXDLLIMPEXP_CORE wxClientDC : public wxWindowDC
153 {
154 public:
155 wxClientDC() { }
156 wxClientDC( wxWindow *win );
157
158 protected:
159 virtual void DoGetSize(int *width, int *height) const;
160
161 private:
162 DECLARE_DYNAMIC_CLASS(wxClientDC)
163 };
164
165 //-----------------------------------------------------------------------------
166 // wxPaintDC
167 //-----------------------------------------------------------------------------
168
169 class WXDLLIMPEXP_CORE wxPaintDC : public wxClientDC
170 {
171 public:
172 wxPaintDC() { }
173 wxPaintDC( wxWindow *win );
174
175 private:
176 DECLARE_DYNAMIC_CLASS(wxPaintDC)
177 };
178
179 #endif
180 // _WX_DCCLIENT_H_