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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 | #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) | |
16 | #pragma interface "dcclient.h" | |
17 | #endif | |
18 | ||
19 | #include "wx/dc.h" | |
20 | ||
21 | // ---------------------------------------------------------------------------- | |
22 | // fwd declarations | |
23 | // ---------------------------------------------------------------------------- | |
24 | ||
25 | class WXDLLEXPORT wxWindowDC; | |
26 | class WXDLLEXPORT wxWindow; | |
27 | ||
28 | // Under Windows, wxClientDC, wxPaintDC and wxWindowDC are implemented | |
29 | // differently. On many platforms, however, they will be the same. | |
30 | ||
31 | //----------------------------------------------------------------------------- | |
32 | // wxWindowDC | |
33 | //----------------------------------------------------------------------------- | |
34 | ||
35 | class WXDLLEXPORT wxWindowDC : public wxDC | |
36 | { | |
37 | DECLARE_DYNAMIC_CLASS(wxWindowDC) | |
38 | ||
39 | public: | |
40 | wxWindowDC(); | |
41 | wxWindowDC( wxWindow *win ); | |
42 | ||
43 | ~wxWindowDC(); | |
44 | ||
45 | // TODO this function is Motif-only for now - should it go into base class? | |
46 | void Clear(const wxRect& rect); | |
47 | ||
48 | // implement base class pure virtuals | |
49 | // ---------------------------------- | |
50 | ||
51 | virtual void Clear(); | |
52 | ||
53 | virtual void SetFont(const wxFont& font); | |
54 | virtual void SetPen(const wxPen& pen); | |
55 | virtual void SetBrush(const wxBrush& brush); | |
56 | virtual void SetBackground(const wxBrush& brush); | |
57 | virtual void SetBackgroundMode(int mode); | |
58 | virtual void SetPalette(const wxPalette& palette); | |
59 | virtual void SetLogicalFunction( int function ); | |
60 | ||
61 | virtual void SetTextForeground(const wxColour& colour); | |
62 | virtual void SetTextBackground(const wxColour& colour); | |
63 | ||
64 | virtual wxCoord GetCharHeight() const; | |
65 | virtual wxCoord GetCharWidth() const; | |
66 | virtual void DoGetTextExtent(const wxString& string, | |
67 | wxCoord *x, wxCoord *y, | |
68 | wxCoord *descent = NULL, | |
69 | wxCoord *externalLeading = NULL, | |
70 | wxFont *theFont = NULL) const; | |
71 | ||
72 | virtual bool CanDrawBitmap() const; | |
73 | virtual bool CanGetTextExtent() const; | |
74 | ||
75 | virtual int GetDepth() const; | |
76 | virtual wxSize GetPPI() const; | |
77 | ||
78 | virtual void DestroyClippingRegion(); | |
79 | ||
80 | // Helper function for setting clipping | |
81 | void SetDCClipping(WXRegion region); | |
82 | ||
83 | // implementation from now on | |
84 | // -------------------------- | |
85 | ||
86 | WXGC GetGC() const { return m_gc; } | |
87 | WXGC GetBackingGC() const { return m_gcBacking; } | |
88 | WXDisplay* GetDisplay() const { return m_display; } | |
89 | bool GetAutoSetting() const { return m_autoSetting; } | |
90 | void SetAutoSetting(bool flag) { m_autoSetting = flag; } | |
91 | ||
92 | protected: | |
93 | // note that this function will call colour.SetPixel, | |
94 | // and will do one of curCol = colour, curCol = wxWHITE, curCol = wxBLACK | |
95 | // roundToWhite has an effect for monochrome display only | |
96 | // if roundToWhite == true then the colour will be set to white unless | |
97 | // it is RGB 0x000000;if roundToWhite == true the colour wull be set to | |
98 | // black unless it id RGB 0xffffff | |
99 | int CalculatePixel(wxColour& colour, wxColour& curCol, | |
100 | bool roundToWhite) const; | |
101 | // sets the foreground pixel taking into account the | |
102 | // currently selected logical operation | |
103 | void SetForegroundPixelWithLogicalFunction(int pixel); | |
104 | ||
105 | virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col, | |
106 | int style = wxFLOOD_SURFACE); | |
107 | ||
108 | virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const; | |
109 | ||
110 | virtual void DoDrawPoint(wxCoord x, wxCoord y); | |
111 | virtual void DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2); | |
112 | ||
113 | virtual void DoDrawArc(wxCoord x1, wxCoord y1, | |
114 | wxCoord x2, wxCoord y2, | |
115 | wxCoord xc, wxCoord yc); | |
116 | virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h, | |
117 | double sa, double ea); | |
118 | ||
119 | virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height); | |
120 | virtual void DoDrawRoundedRectangle(wxCoord x, wxCoord y, | |
121 | wxCoord width, wxCoord height, | |
122 | double radius); | |
123 | virtual void DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height); | |
124 | ||
125 | virtual void DoCrossHair(wxCoord x, wxCoord y); | |
126 | ||
127 | virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y); | |
128 | virtual void DoDrawRotatedText(const wxString &text, wxCoord x, wxCoord y, double angle); | |
129 | ||
130 | virtual bool DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height, | |
131 | wxDC *source, wxCoord xsrc, wxCoord ysrc, | |
132 | int rop = wxCOPY, bool useMask = false, wxCoord xsrcMask = -1, wxCoord ysrcMask = -1); | |
133 | ||
134 | virtual void DoSetClippingRegionAsRegion(const wxRegion& region); | |
135 | virtual void DoSetClippingRegion(wxCoord x, wxCoord y, | |
136 | wxCoord width, wxCoord height); | |
137 | ||
138 | virtual void DoDrawLines(int n, wxPoint points[], | |
139 | wxCoord xoffset, wxCoord yoffset); | |
140 | virtual void DoDrawPolygon(int n, wxPoint points[], | |
141 | wxCoord xoffset, wxCoord yoffset, | |
142 | int fillStyle = wxODDEVEN_RULE); | |
143 | ||
144 | void DoGetSize( int *width, int *height ) const; | |
145 | ||
146 | // common part of constructors | |
147 | void Init(); | |
148 | ||
149 | WXGC m_gc; | |
150 | WXGC m_gcBacking; | |
151 | WXDisplay* m_display; | |
152 | wxWindow* m_window; | |
153 | // Pixmap for drawing on | |
154 | WXPixmap m_pixmap; | |
155 | // Last clipping region set on th GC, this is the combination | |
156 | // of paint clipping region and all user-defined clipping regions | |
157 | WXRegion m_clipRegion; | |
158 | ||
159 | // Not sure if we'll need all of these | |
160 | int m_backgroundPixel; | |
161 | wxColour m_currentColour; | |
162 | int m_currentPenWidth ; | |
163 | int m_currentPenJoin ; | |
164 | int m_currentPenCap ; | |
165 | int m_currentPenDashCount ; | |
166 | wxX11Dash* m_currentPenDash ; | |
167 | wxBitmap m_currentStipple ; | |
168 | int m_currentStyle ; | |
169 | int m_currentFill ; | |
170 | int m_autoSetting ; // See comment in dcclient.cpp | |
171 | WXFont m_oldFont; | |
172 | }; | |
173 | ||
174 | class WXDLLEXPORT wxPaintDC: public wxWindowDC | |
175 | { | |
176 | DECLARE_DYNAMIC_CLASS(wxPaintDC) | |
177 | ||
178 | public: | |
179 | wxPaintDC() { } | |
180 | wxPaintDC(wxWindow* win); | |
181 | ||
182 | ~wxPaintDC(); | |
183 | }; | |
184 | ||
185 | class WXDLLEXPORT wxClientDC: public wxWindowDC | |
186 | { | |
187 | DECLARE_DYNAMIC_CLASS(wxClientDC) | |
188 | ||
189 | public: | |
190 | wxClientDC() { } | |
191 | wxClientDC(wxWindow* win) : wxWindowDC(win) { } | |
192 | }; | |
193 | ||
194 | #endif | |
195 | // _WX_DCCLIENT_H_ |