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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: dc.h | |
3 | // Purpose: wxDC class | |
4 | // Author: Stefan Csomor | |
5 | // Modified by: | |
6 | // Created: 1998-01-01 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) Stefan Csomor | |
9 | // Licence: wxWindows licence | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | #ifndef _WX_DC_H_ | |
13 | #define _WX_DC_H_ | |
14 | ||
15 | #include "wx/pen.h" | |
16 | #include "wx/brush.h" | |
17 | #include "wx/icon.h" | |
18 | #include "wx/font.h" | |
19 | #include "wx/gdicmn.h" | |
20 | ||
21 | //----------------------------------------------------------------------------- | |
22 | // constants | |
23 | //----------------------------------------------------------------------------- | |
24 | ||
25 | #ifndef MM_TEXT | |
26 | #define MM_TEXT 0 | |
27 | #define MM_ISOTROPIC 1 | |
28 | #define MM_ANISOTROPIC 2 | |
29 | #define MM_LOMETRIC 3 | |
30 | #define MM_HIMETRIC 4 | |
31 | #define MM_TWIPS 5 | |
32 | #define MM_POINTS 6 | |
33 | #define MM_METRIC 7 | |
34 | #endif | |
35 | ||
36 | ||
37 | extern int wxPageNumber; | |
38 | ||
39 | ||
40 | class wxMacPortStateHelper; | |
41 | ||
42 | class WXDLLEXPORT wxGraphicPath | |
43 | { | |
44 | public : | |
45 | virtual ~wxGraphicPath() {} | |
46 | ||
47 | virtual void MoveToPoint( wxCoord x1, wxCoord y1 ) = 0; | |
48 | ||
49 | virtual void AddLineToPoint( wxCoord x1, wxCoord y1 ) = 0; | |
50 | ||
51 | virtual void AddQuadCurveToPoint( wxCoord cx1, wxCoord cy1, wxCoord x1, wxCoord y1 ) = 0; | |
52 | ||
53 | virtual void AddRectangle( wxCoord x, wxCoord y, wxCoord w, wxCoord h ) = 0; | |
54 | ||
55 | virtual void AddCircle( wxCoord x, wxCoord y, wxCoord r ) = 0; | |
56 | ||
57 | virtual void CloseSubpath() = 0; | |
58 | }; | |
59 | ||
60 | class WXDLLEXPORT wxGraphicContext | |
61 | { | |
62 | public: | |
63 | virtual ~wxGraphicContext() {} | |
64 | ||
65 | virtual void Clip( const wxRegion ®ion ) = 0; | |
66 | ||
67 | virtual void StrokePath( const wxGraphicPath *path ) = 0; | |
68 | ||
69 | virtual void DrawPath( const wxGraphicPath *path, int fillStyle = wxWINDING_RULE ) = 0; | |
70 | ||
71 | virtual void FillPath( const wxGraphicPath *path, const wxColor &fillColor, int fillStyle = wxWINDING_RULE ) = 0; | |
72 | ||
73 | virtual void SetPen( const wxPen &pen ) = 0; | |
74 | ||
75 | virtual void SetBrush( const wxBrush &brush ) = 0; | |
76 | ||
77 | virtual wxGraphicPath * CreatePath() = 0; | |
78 | }; | |
79 | ||
80 | class WXDLLEXPORT wxDC: public wxDCBase | |
81 | { | |
82 | DECLARE_DYNAMIC_CLASS(wxDC) | |
83 | DECLARE_NO_COPY_CLASS(wxDC) | |
84 | ||
85 | public: | |
86 | wxDC(); | |
87 | ~wxDC(); | |
88 | ||
89 | // implement base class pure virtuals | |
90 | // ---------------------------------- | |
91 | ||
92 | virtual void Clear(); | |
93 | ||
94 | virtual bool StartDoc( const wxString& WXUNUSED(message) ) { return true; } | |
95 | virtual void EndDoc(void) {} | |
96 | ||
97 | virtual void StartPage(void) {} | |
98 | virtual void EndPage(void) {} | |
99 | ||
100 | virtual void SetFont(const wxFont& font); | |
101 | virtual void SetPen(const wxPen& pen); | |
102 | virtual void SetBrush(const wxBrush& brush); | |
103 | virtual void SetBackground(const wxBrush& brush); | |
104 | virtual void SetBackgroundMode(int mode); | |
105 | virtual void SetPalette(const wxPalette& palette); | |
106 | ||
107 | virtual void DestroyClippingRegion(); | |
108 | ||
109 | virtual wxCoord GetCharHeight() const; | |
110 | virtual wxCoord GetCharWidth() const; | |
111 | ||
112 | virtual bool CanDrawBitmap() const; | |
113 | virtual bool CanGetTextExtent() const; | |
114 | virtual int GetDepth() const; | |
115 | virtual wxSize GetPPI() const; | |
116 | ||
117 | virtual void SetMapMode(int mode); | |
118 | virtual void SetUserScale(double x, double y); | |
119 | ||
120 | virtual void SetLogicalScale(double x, double y); | |
121 | virtual void SetLogicalOrigin(wxCoord x, wxCoord y); | |
122 | virtual void SetDeviceOrigin(wxCoord x, wxCoord y); | |
123 | virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp); | |
124 | virtual void SetLogicalFunction(int function); | |
125 | ||
126 | virtual void SetTextForeground(const wxColour& colour); | |
127 | virtual void SetTextBackground(const wxColour& colour); | |
128 | ||
129 | virtual void ComputeScaleAndOrigin(); | |
130 | ||
131 | public: | |
132 | wxCoord XDEV2LOG(wxCoord x) const | |
133 | { | |
134 | long new_x = x - m_deviceOriginX; | |
135 | if (new_x > 0) | |
136 | return (wxCoord)((double)new_x / m_scaleX + 0.5) * m_signX + m_logicalOriginX; | |
137 | else | |
138 | return (wxCoord)((double)new_x / m_scaleX - 0.5) * m_signX + m_logicalOriginX; | |
139 | } | |
140 | ||
141 | wxCoord XDEV2LOGREL(wxCoord x) const | |
142 | { | |
143 | if (x > 0) | |
144 | return (wxCoord)((double)x / m_scaleX + 0.5); | |
145 | else | |
146 | return (wxCoord)((double)x / m_scaleX - 0.5); | |
147 | } | |
148 | ||
149 | wxCoord YDEV2LOG(wxCoord y) const | |
150 | { | |
151 | long new_y = y - m_deviceOriginY; | |
152 | if (new_y > 0) | |
153 | return (wxCoord)((double)new_y / m_scaleY + 0.5) * m_signY + m_logicalOriginY; | |
154 | else | |
155 | return (wxCoord)((double)new_y / m_scaleY - 0.5) * m_signY + m_logicalOriginY; | |
156 | } | |
157 | ||
158 | wxCoord YDEV2LOGREL(wxCoord y) const | |
159 | { | |
160 | if (y > 0) | |
161 | return (wxCoord)((double)y / m_scaleY + 0.5); | |
162 | else | |
163 | return (wxCoord)((double)y / m_scaleY - 0.5); | |
164 | } | |
165 | ||
166 | wxCoord XLOG2DEV(wxCoord x) const | |
167 | { | |
168 | long new_x = x - m_logicalOriginX; | |
169 | if (new_x > 0) | |
170 | return (wxCoord)((double)new_x * m_scaleX + 0.5) * m_signX + m_deviceOriginX; | |
171 | else | |
172 | return (wxCoord)((double)new_x * m_scaleX - 0.5) * m_signX + m_deviceOriginX; | |
173 | } | |
174 | ||
175 | wxCoord XLOG2DEVREL(wxCoord x) const | |
176 | { | |
177 | if (x > 0) | |
178 | return (wxCoord)((double)x * m_scaleX + 0.5); | |
179 | else | |
180 | return (wxCoord)((double)x * m_scaleX - 0.5); | |
181 | } | |
182 | ||
183 | wxCoord YLOG2DEV(wxCoord y) const | |
184 | { | |
185 | long new_y = y - m_logicalOriginY; | |
186 | if (new_y > 0) | |
187 | return (wxCoord)((double)new_y * m_scaleY + 0.5) * m_signY + m_deviceOriginY; | |
188 | else | |
189 | return (wxCoord)((double)new_y * m_scaleY - 0.5) * m_signY + m_deviceOriginY; | |
190 | } | |
191 | ||
192 | wxCoord YLOG2DEVREL(wxCoord y) const | |
193 | { | |
194 | if (y > 0) | |
195 | return (wxCoord)((double)y * m_scaleY + 0.5); | |
196 | else | |
197 | return (wxCoord)((double)y * m_scaleY - 0.5); | |
198 | } | |
199 | ||
200 | wxCoord XLOG2DEVMAC(wxCoord x) const | |
201 | { | |
202 | long new_x = x - m_logicalOriginX; | |
203 | if (new_x > 0) | |
204 | return (wxCoord)((double)new_x * m_scaleX + 0.5) * m_signX + m_deviceOriginX + m_macLocalOrigin.x; | |
205 | else | |
206 | return (wxCoord)((double)new_x * m_scaleX - 0.5) * m_signX + m_deviceOriginX + m_macLocalOrigin.x; | |
207 | } | |
208 | ||
209 | wxCoord YLOG2DEVMAC(wxCoord y) const | |
210 | { | |
211 | long new_y = y - m_logicalOriginY; | |
212 | if (new_y > 0) | |
213 | return (wxCoord)((double)new_y * m_scaleY + 0.5) * m_signY + m_deviceOriginY + m_macLocalOrigin.y; | |
214 | else | |
215 | return (wxCoord)((double)new_y * m_scaleY - 0.5) * m_signY + m_deviceOriginY + m_macLocalOrigin.y; | |
216 | } | |
217 | ||
218 | #if wxMAC_USE_CORE_GRAPHICS | |
219 | wxGraphicContext* GetGraphicContext() { return m_graphicContext; } | |
220 | #else | |
221 | WXHRGN MacGetCurrentClipRgn() { return m_macCurrentClipRgn; } | |
222 | static void MacSetupBackgroundForCurrentPort(const wxBrush& background ); | |
223 | #endif | |
224 | ||
225 | protected: | |
226 | virtual void DoGetTextExtent(const wxString& string, | |
227 | wxCoord *x, wxCoord *y, | |
228 | wxCoord *descent = NULL, | |
229 | wxCoord *externalLeading = NULL, | |
230 | wxFont *theFont = NULL) const; | |
231 | ||
232 | virtual bool DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const; | |
233 | ||
234 | virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col, | |
235 | int style = wxFLOOD_SURFACE); | |
236 | ||
237 | virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const; | |
238 | ||
239 | virtual void DoDrawPoint(wxCoord x, wxCoord y); | |
240 | ||
241 | #if wxMAC_USE_CORE_GRAPHICS && wxUSE_SPLINES | |
242 | virtual void DoDrawSpline(wxList *points); | |
243 | #endif | |
244 | ||
245 | virtual void DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2); | |
246 | ||
247 | virtual void DoDrawArc(wxCoord x1, wxCoord y1, | |
248 | wxCoord x2, wxCoord y2, | |
249 | wxCoord xc, wxCoord yc); | |
250 | ||
251 | virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h, | |
252 | double sa, double ea); | |
253 | ||
254 | virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height); | |
255 | virtual void DoDrawRoundedRectangle(wxCoord x, wxCoord y, | |
256 | wxCoord width, wxCoord height, | |
257 | double radius); | |
258 | virtual void DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height); | |
259 | ||
260 | virtual void DoCrossHair(wxCoord x, wxCoord y); | |
261 | ||
262 | virtual void DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y); | |
263 | virtual void DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y, | |
264 | bool useMask = false); | |
265 | ||
266 | virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y); | |
267 | virtual void DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y, | |
268 | double angle); | |
269 | ||
270 | virtual bool DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height, | |
271 | wxDC *source, wxCoord xsrc, wxCoord ysrc, | |
272 | int rop = wxCOPY, bool useMask = false, wxCoord xsrcMask = -1, wxCoord ysrcMask = -1); | |
273 | ||
274 | // this is gnarly - we can't even call this function DoSetClippingRegion() | |
275 | // because of virtual function hiding | |
276 | ||
277 | virtual void DoSetClippingRegionAsRegion(const wxRegion& region); | |
278 | virtual void DoSetClippingRegion(wxCoord x, wxCoord y, | |
279 | wxCoord width, wxCoord height); | |
280 | ||
281 | virtual void DoGetSizeMM(int *width, int *height) const; | |
282 | ||
283 | virtual void DoDrawLines(int n, wxPoint points[], | |
284 | wxCoord xoffset, wxCoord yoffset); | |
285 | virtual void DoDrawPolygon(int n, wxPoint points[], | |
286 | wxCoord xoffset, wxCoord yoffset, | |
287 | int fillStyle = wxODDEVEN_RULE); | |
288 | ||
289 | protected: | |
290 | // scaling variables | |
291 | double m_mm_to_pix_x, m_mm_to_pix_y; | |
292 | ||
293 | // To be set using SetDeviceOrigin() | |
294 | // by external classes such as wxScrolledWindow | |
295 | long m_externalDeviceOriginX, m_externalDeviceOriginY; | |
296 | ||
297 | #if !wxMAC_USE_CORE_GRAPHICS | |
298 | // If un-scrolled is non-zero or d.o. changes with scrolling. | |
299 | // Set using SetInternalDeviceOrigin(). | |
300 | long m_internalDeviceOriginX, m_internalDeviceOriginY; | |
301 | ||
302 | WXHBITMAP m_macMask; | |
303 | #endif | |
304 | ||
305 | // not yet used | |
306 | bool m_needComputeScaleX, m_needComputeScaleY; | |
307 | ||
308 | public: | |
309 | // implementation | |
310 | void MacInstallFont() const; | |
311 | ||
312 | // in order to preserve the const inheritance of the virtual functions, | |
313 | // we have to use mutable variables starting from CWPro 5 | |
314 | wxPoint m_macLocalOrigin; | |
315 | mutable void *m_macATSUIStyle; | |
316 | ||
317 | WXHDC m_macPort; | |
318 | ||
319 | #if wxMAC_USE_CORE_GRAPHICS | |
320 | wxGraphicContext *m_graphicContext; | |
321 | wxPoint m_macLocalOriginInPort; | |
322 | #else | |
323 | void MacInstallPen() const; | |
324 | void MacInstallBrush() const; | |
325 | ||
326 | void MacSetupPort( wxMacPortStateHelper *ph ) const; | |
327 | void MacCleanupPort( wxMacPortStateHelper *ph ) const; | |
328 | ||
329 | mutable wxMacPortStateHelper *m_macCurrentPortStateHelper; | |
330 | ||
331 | mutable bool m_macFontInstalled; | |
332 | mutable bool m_macPenInstalled; | |
333 | mutable bool m_macBrushInstalled; | |
334 | ||
335 | WXHRGN m_macBoundaryClipRgn; | |
336 | WXHRGN m_macCurrentClipRgn; | |
337 | mutable bool m_macFormerAliasState; | |
338 | mutable short m_macFormerAliasSize; | |
339 | mutable bool m_macAliasWasEnabled; | |
340 | mutable void *m_macForegroundPixMap; | |
341 | mutable void *m_macBackgroundPixMap; | |
342 | #endif | |
343 | }; | |
344 | ||
345 | #endif // _WX_DC_H_ |