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0e320a79 DW |
1 | ///////////////////////////////////////////////////////////////////////////// |
2 | // Name: dc.h | |
3 | // Purpose: wxDC class | |
f0a56ab0 | 4 | // Author: David Webster |
0e320a79 | 5 | // Modified by: |
f0a56ab0 | 6 | // Created: 08/26/99 |
0e320a79 | 7 | // RCS-ID: $Id$ |
f0a56ab0 DW |
8 | // Copyright: (c) David Webster |
9 | // Licence: wxWindows licence | |
0e320a79 DW |
10 | ///////////////////////////////////////////////////////////////////////////// |
11 | ||
12 | #ifndef _WX_DC_H_ | |
13 | #define _WX_DC_H_ | |
14 | ||
15 | #ifdef __GNUG__ | |
54da4255 | 16 | #pragma interface "dc.h" |
0e320a79 DW |
17 | #endif |
18 | ||
c3d43472 | 19 | #include "wx/window.h" |
54da4255 DW |
20 | #include "wx/pen.h" |
21 | #include "wx/brush.h" | |
22 | #include "wx/icon.h" | |
23 | #include "wx/font.h" | |
24 | #include "wx/gdicmn.h" | |
25 | ||
26 | //----------------------------------------------------------------------------- | |
27 | // constants | |
28 | //----------------------------------------------------------------------------- | |
29 | ||
30 | #ifndef MM_TEXT | |
1408104d DW |
31 | #define MM_TEXT 0 |
32 | #define MM_ISOTROPIC 1 | |
33 | #define MM_ANISOTROPIC 2 | |
34 | #define MM_LOMETRIC 3 | |
35 | #define MM_HIMETRIC 4 | |
36 | #define MM_TWIPS 5 | |
37 | #define MM_POINTS 6 | |
38 | #define MM_METRIC 7 | |
54da4255 | 39 | #endif |
0e320a79 | 40 | |
54da4255 DW |
41 | //----------------------------------------------------------------------------- |
42 | // global variables | |
43 | //----------------------------------------------------------------------------- | |
0e320a79 | 44 | |
54da4255 | 45 | extern int wxPageNumber; |
0e320a79 | 46 | |
54da4255 DW |
47 | //----------------------------------------------------------------------------- |
48 | // wxDC | |
49 | //----------------------------------------------------------------------------- | |
0e320a79 | 50 | |
1408104d | 51 | class WXDLLEXPORT wxDC: public wxDCBase |
54da4255 DW |
52 | { |
53 | DECLARE_ABSTRACT_CLASS(wxDC) | |
0e320a79 | 54 | |
54da4255 | 55 | public: |
0e320a79 | 56 | |
54da4255 DW |
57 | wxDC(void); |
58 | ~wxDC(void); | |
0e320a79 | 59 | |
1408104d DW |
60 | virtual void BeginDrawing(void) { }; |
61 | virtual void EndDrawing(void) { }; | |
0e320a79 | 62 | |
1408104d DW |
63 | //----------------------------------------------------------------------------- |
64 | // Pure virtuals from wxDCBase that need defining | |
65 | //----------------------------------------------------------------------------- | |
66 | virtual bool CanDrawBitmap(void) const { return TRUE; }; | |
67 | virtual bool CanGetTextExtent(void) const { return TRUE; }; | |
68 | virtual int GetDepth(void) const; | |
69 | virtual wxSize GetPPI(void) const; | |
70 | virtual void GetTextExtent( const wxString& string | |
71 | ,long* width | |
72 | ,long* height | |
73 | ,long* descent = NULL | |
74 | ,long* externalLeading = NULL | |
75 | ,wxFont* theFont = NULL | |
76 | ) const; | |
77 | virtual long GetCharWidth(void) const; | |
78 | virtual long GetCharHeight(void) const; | |
79 | virtual void Clear(void); | |
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(int function); | |
85 | virtual void SetBackgroundMode(int mode); | |
86 | virtual void SetPalette(const wxPalette& palette); | |
87 | virtual void SetMapMode(int mode); | |
88 | virtual void DestroyClippingRegion(void); | |
89 | virtual void SetUserScale(double x, double y); | |
90 | virtual void SetLogicalOrigin(long x, long y); | |
91 | virtual void SetDeviceOrigin(long x, long y); | |
92 | virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp); | |
93 | ||
94 | virtual void DoFloodFill( long x | |
95 | ,long y | |
96 | ,const wxColour& col | |
97 | ,int style = wxFLOOD_SURFACE | |
98 | ); | |
99 | virtual bool DoGetPixel(long x, long y, wxColour *col) const; | |
100 | virtual void DoDrawPoint(long x, long y); | |
101 | virtual void DoDrawLine(long x1, long y1, long x2, long y2); | |
102 | virtual void DoDrawArc(long x1, long y1, | |
103 | long x2, long y2, | |
104 | long xc, long yc | |
105 | ); | |
106 | virtual void DoDrawEllipticArc( long x, long y | |
107 | ,long w, long h | |
108 | ,double sa, double ea | |
109 | ); | |
110 | virtual void DoDrawRectangle(long x, long y, long width, long height); | |
111 | virtual void DoDrawRoundedRectangle( long x, long y | |
112 | ,long width, long height | |
113 | ,double radius | |
114 | ); | |
115 | virtual void DoDrawEllipse(long x, long y, long width, long height); | |
116 | virtual void DoCrossHair(long x, long y); | |
117 | virtual void DoDrawIcon(const wxIcon& icon, long x, long y); | |
118 | virtual void DoDrawBitmap( const wxBitmap &bmp | |
119 | ,long x, long y | |
120 | ,bool useMask = FALSE | |
121 | ); | |
122 | virtual void DoDrawText(const wxString& text, long x, long y); | |
123 | virtual bool DoBlit( long xdest, long ydest | |
124 | ,long width, long height | |
125 | ,wxDC *source | |
126 | ,long xsrc, long ysrc | |
127 | ,int rop = wxCOPY, bool useMask = FALSE | |
128 | ); | |
129 | virtual void DoGetSize(int *width, int *height) const; | |
130 | virtual void DoGetSizeMM(int* width, int* height) const; | |
131 | virtual void DoDrawLines( int n, wxPoint points[] | |
132 | ,long xoffset, long yoffset | |
133 | ); | |
134 | virtual void DoDrawPolygon( int n, wxPoint points[] | |
135 | ,long xoffset, long yoffset | |
136 | ,int fillStyle = wxODDEVEN_RULE | |
137 | ); | |
138 | virtual void DoSetClippingRegionAsRegion(const wxRegion& region); | |
139 | virtual void DoSetClippingRegion( long x, long y | |
140 | ,long width, long height | |
141 | ); | |
142 | #if wxUSE_SPLINES | |
143 | virtual void DoDrawSpline(wxList *points); | |
144 | #endif | |
54da4255 | 145 | |
75f11ad7 DW |
146 | // OS2-specific member variables |
147 | int m_windowExtX; | |
148 | int m_windowExtY; | |
149 | ||
1408104d DW |
150 | //----------------------------------------------------------------------------- |
151 | // Other virtuals from wxDCBase that are overridden here | |
152 | //----------------------------------------------------------------------------- | |
54da4255 | 153 | |
54da4255 | 154 | virtual void SetLogicalScale( double x, double y ); |
1408104d DW |
155 | |
156 | //----------------------------------------------------------------------------- | |
157 | // Our own new stuff | |
158 | //----------------------------------------------------------------------------- | |
54da4255 DW |
159 | virtual void SetInternalDeviceOrigin( long x, long y ); |
160 | virtual void GetInternalDeviceOrigin( long *x, long *y ); | |
161 | ||
ce44c50e DW |
162 | virtual void SetRop(WXHDC cdc); |
163 | virtual void DoClipping(WXHDC cdc); | |
164 | virtual void SelectOldObjects(WXHDC dc); | |
165 | ||
166 | wxWindow *GetWindow() const { return m_canvas; } | |
167 | void SetWindow(wxWindow *win) { m_canvas = win; } | |
168 | ||
169 | WXHDC GetHDC() const { return m_hDC; } | |
170 | void SetHDC(WXHDC dc, bool bOwnsDC = FALSE) | |
171 | { | |
172 | m_hDC = dc; | |
173 | m_bOwnsDC = bOwnsDC; | |
174 | } | |
175 | ||
1408104d | 176 | private: |
54da4255 | 177 | |
1408104d DW |
178 | #if WXWIN_COMPATIBILITY |
179 | // function hiding warning supression | |
180 | virtual void GetTextExtent( const wxString& string | |
181 | ,long* width | |
182 | ,long* height | |
183 | ,long* descent = NULL | |
184 | ,long* externalLeading = NULL | |
185 | ,wxFont* theFont = NULL | |
186 | ,bool use16 = FALSE | |
187 | ) const | |
188 | { wxDCBase::GetTextExtent(string, width, height, descent, externalLeading, theFont, use16); }; | |
189 | #endif | |
54da4255 | 190 | |
1408104d DW |
191 | protected: |
192 | ||
193 | // ------------------------------------------------------------------------ | |
194 | // Some additional data we need | |
195 | // ------------------------------------------------------------------------ | |
196 | ||
197 | // Owner canvas and selected in bitmap (if bitmap is GDI object selected) | |
ce44c50e DW |
198 | wxWindow* m_canvas; |
199 | wxBitmap m_selectedBitmap; | |
1408104d DW |
200 | |
201 | // our HDC and its usage count: we only free it when the usage count drops | |
202 | // to 0 | |
203 | WXHDC m_hDC; | |
204 | int m_hDCCount; | |
ce44c50e | 205 | bool m_bOwnsDC:1; |
1408104d DW |
206 | |
207 | // Store all old GDI objects when do a SelectObject, so we can select them | |
208 | // back in (this unselecting user's objects) so we can safely delete the | |
209 | // DC. | |
210 | WXHBITMAP m_oldBitmap; | |
211 | WXHPEN m_oldPen; | |
212 | WXHBRUSH m_oldBrush; | |
213 | WXHFONT m_oldFont; | |
214 | WXHPALETTE m_oldPalette; | |
0e320a79 DW |
215 | }; |
216 | ||
217 | #endif | |
218 | // _WX_DC_H_ |