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32b8ec41 VZ |
1 | ///////////////////////////////////////////////////////////////////////////// |
2 | // Name: dc.cpp | |
3 | // Purpose: wxDC class | |
4 | // Author: Vaclav Slavik | |
5 | // Created: 2001/03/09 | |
6 | // RCS-ID: $Id$ | |
8f7b34a8 | 7 | // Copyright: (c) 2001 SciTech Software, Inc. (www.scitechsoft.com) |
32b8ec41 VZ |
8 | // Licence: wxWindows licence |
9 | ///////////////////////////////////////////////////////////////////////////// | |
10 | ||
11 | // =========================================================================== | |
12 | // declarations | |
13 | // =========================================================================== | |
14 | ||
15 | // --------------------------------------------------------------------------- | |
16 | // headers | |
17 | // --------------------------------------------------------------------------- | |
18 | ||
19 | #ifdef __GNUG__ | |
20 | #pragma implementation "dc.h" | |
21 | #endif | |
22 | ||
23 | // For compilers that support precompilation, includes "wx.h". | |
24 | #include "wx/wxprec.h" | |
25 | ||
26 | #ifdef __BORLANDC__ | |
27 | #pragma hdrstop | |
28 | #endif | |
29 | ||
30 | #ifndef WX_PRECOMP | |
31 | #include "wx/dc.h" | |
32 | #include "wx/dcmemory.h" | |
33 | #endif | |
34 | ||
35 | #include "wx/fontutil.h" | |
36 | #include "wx/fontmap.h" | |
37 | #include "wx/mgl/private.h" | |
38 | #include "wx/log.h" | |
39 | ||
40 | #include <string.h> | |
41 | #include <math.h> | |
42 | #include <mgraph.hpp> | |
43 | ||
44 | ||
45 | ||
46 | //----------------------------------------------------------------------------- | |
47 | // constants | |
48 | //----------------------------------------------------------------------------- | |
49 | ||
50 | const double mm2inches = 0.0393700787402; | |
51 | const double inches2mm = 25.4; | |
52 | const double mm2twips = 56.6929133859; | |
53 | const double twips2mm = 0.0176388888889; | |
54 | const double mm2pt = 2.83464566929; | |
55 | const double pt2mm = 0.352777777778; | |
56 | const double RAD2DEG = 180.0 / M_PI; | |
57 | ||
58 | ||
59 | //----------------------------------------------------------------------------- | |
60 | // pens data: | |
61 | //----------------------------------------------------------------------------- | |
62 | ||
63 | const ushort STIPPLE_wxDOT = 0x5555/* - - - - - - - -*/; | |
64 | const ushort STIPPLE_wxLONG_DASH = 0xF0F0/* ---- ----*/; | |
65 | const ushort STIPPLE_wxSHORT_DASH = 0xCCCC/*-- -- -- -- */; | |
66 | const ushort STIPPLE_wxDOT_DASH = 0x3939/* --- - --- -*/; | |
67 | const ushort STIPPLE_wxSOLID = 0xFFFF/*----------------*/; | |
68 | ||
69 | #define PATTERN_ROW(b7,b6,b5,b4,b3,b2,b1,b0) \ | |
70 | ((b7 << 7) | (b6 << 6) | (b5 << 5) | (b4 << 4) | \ | |
71 | (b3 << 3) | (b2 << 2) | (b1 << 1) | b0) | |
72 | ||
73 | static pattern_t PATTERN_wxFDIAGONAL_HATCH = {{ | |
74 | PATTERN_ROW(1,0,0,0,0,0,0,0), | |
75 | PATTERN_ROW(0,1,0,0,0,0,0,0), | |
76 | PATTERN_ROW(0,0,1,0,0,0,0,0), | |
77 | PATTERN_ROW(0,0,0,1,0,0,0,0), | |
78 | PATTERN_ROW(0,0,0,0,1,0,0,0), | |
79 | PATTERN_ROW(0,0,0,0,0,1,0,0), | |
80 | PATTERN_ROW(0,0,0,0,0,0,1,0), | |
81 | PATTERN_ROW(0,0,0,0,0,0,0,1), | |
82 | }}; | |
83 | ||
84 | static pattern_t PATTERN_wxCROSSDIAG_HATCH = {{ | |
85 | PATTERN_ROW(1,0,0,0,0,0,0,1), | |
86 | PATTERN_ROW(0,1,0,0,0,0,1,0), | |
87 | PATTERN_ROW(0,0,1,0,0,1,0,0), | |
88 | PATTERN_ROW(0,0,0,1,1,0,0,0), | |
89 | PATTERN_ROW(0,0,0,1,1,0,0,0), | |
90 | PATTERN_ROW(0,0,1,0,0,1,0,0), | |
91 | PATTERN_ROW(0,1,0,0,0,0,1,0), | |
92 | PATTERN_ROW(1,0,0,0,0,0,0,1), | |
93 | }}; | |
94 | ||
95 | static pattern_t PATTERN_wxBDIAGONAL_HATCH = {{ | |
96 | PATTERN_ROW(0,0,0,0,0,0,0,1), | |
97 | PATTERN_ROW(0,0,0,0,0,0,1,0), | |
98 | PATTERN_ROW(0,0,0,0,0,1,0,0), | |
99 | PATTERN_ROW(0,0,0,0,1,0,0,0), | |
100 | PATTERN_ROW(0,0,0,1,0,0,0,0), | |
101 | PATTERN_ROW(0,0,1,0,0,0,0,0), | |
102 | PATTERN_ROW(0,1,0,0,0,0,0,0), | |
103 | PATTERN_ROW(1,0,0,0,0,0,0,0), | |
104 | }}; | |
105 | ||
106 | static pattern_t PATTERN_wxCROSS_HATCH = {{ | |
107 | PATTERN_ROW(0,0,0,1,0,0,0,0), | |
108 | PATTERN_ROW(0,0,0,1,0,0,0,0), | |
109 | PATTERN_ROW(0,0,0,1,0,0,0,0), | |
110 | PATTERN_ROW(1,1,1,1,1,1,1,1), | |
111 | PATTERN_ROW(0,0,0,1,0,0,0,0), | |
112 | PATTERN_ROW(0,0,0,1,0,0,0,0), | |
113 | PATTERN_ROW(0,0,0,1,0,0,0,0), | |
114 | PATTERN_ROW(0,0,0,1,0,0,0,0), | |
115 | }}; | |
116 | ||
117 | static pattern_t PATTERN_wxHORIZONTAL_HATCH = {{ | |
118 | PATTERN_ROW(0,0,0,0,0,0,0,0), | |
119 | PATTERN_ROW(0,0,0,0,0,0,0,0), | |
120 | PATTERN_ROW(0,0,0,0,0,0,0,0), | |
121 | PATTERN_ROW(1,1,1,1,1,1,1,1), | |
122 | PATTERN_ROW(0,0,0,0,0,0,0,0), | |
123 | PATTERN_ROW(0,0,0,0,0,0,0,0), | |
124 | PATTERN_ROW(0,0,0,0,0,0,0,0), | |
125 | PATTERN_ROW(0,0,0,0,0,0,0,0), | |
126 | }}; | |
127 | ||
128 | static pattern_t PATTERN_wxVERTICAL_HATCH = {{ | |
129 | PATTERN_ROW(0,0,0,1,0,0,0,0), | |
130 | PATTERN_ROW(0,0,0,1,0,0,0,0), | |
131 | PATTERN_ROW(0,0,0,1,0,0,0,0), | |
132 | PATTERN_ROW(0,0,0,1,0,0,0,0), | |
133 | PATTERN_ROW(0,0,0,1,0,0,0,0), | |
134 | PATTERN_ROW(0,0,0,1,0,0,0,0), | |
135 | PATTERN_ROW(0,0,0,1,0,0,0,0), | |
136 | PATTERN_ROW(0,0,0,1,0,0,0,0), | |
137 | }}; | |
138 | ||
139 | #undef PATTERN_ROW | |
140 | ||
141 | //----------------------------------------------------------------------------- | |
142 | // wxDC | |
143 | //----------------------------------------------------------------------------- | |
144 | ||
145 | IMPLEMENT_ABSTRACT_CLASS(wxDC, wxDCBase) | |
146 | ||
147 | // Default constructor | |
148 | wxDC::wxDC() | |
149 | { | |
150 | m_isMemDC = FALSE; | |
151 | m_MGLDC = NULL; | |
152 | m_OwnsMGLDC = FALSE; | |
153 | m_ok = FALSE; // must call SetMGLDevCtx() before using it | |
154 | ||
32b8ec41 VZ |
155 | m_mm_to_pix_x = (double)wxGetDisplaySize().GetWidth() / |
156 | (double)wxGetDisplaySizeMM().GetWidth(); | |
157 | m_mm_to_pix_y = (double)wxGetDisplaySize().GetHeight() / | |
158 | (double)wxGetDisplaySizeMM().GetHeight(); | |
32b8ec41 VZ |
159 | |
160 | m_pen = *wxBLACK_PEN; | |
161 | m_font = *wxNORMAL_FONT; | |
162 | m_brush = *wxWHITE_BRUSH; | |
163 | m_penOfsX = m_penOfsY = 0; | |
164 | ||
165 | m_penSelected = m_brushSelected = FALSE; | |
166 | m_downloadedPatterns[0] = m_downloadedPatterns[1] = FALSE; | |
167 | ||
168 | m_mglFont = NULL; | |
169 | } | |
170 | ||
171 | ||
172 | wxDC::~wxDC() | |
173 | { | |
174 | if (m_OwnsMGLDC) | |
175 | delete m_MGLDC; | |
176 | } | |
177 | ||
178 | void wxDC::SetMGLDC(MGLDevCtx *mgldc, bool OwnsMGLDC) | |
179 | { | |
180 | if ( m_OwnsMGLDC && m_MGLDC ) | |
181 | delete m_MGLDC; | |
182 | m_MGLDC = mgldc; | |
183 | m_OwnsMGLDC = OwnsMGLDC; | |
184 | m_ok = TRUE; | |
b8c0528d VS |
185 | |
186 | if ( !m_globalClippingRegion.IsNull() ) | |
187 | SetClippingRegion(m_globalClippingRegion); | |
7bdc1879 | 188 | |
32b8ec41 VZ |
189 | InitializeMGLDC(); |
190 | } | |
191 | ||
192 | void wxDC::InitializeMGLDC() | |
193 | { | |
194 | if ( GetDepth() > 8 ) | |
195 | { | |
196 | wxCurrentDCSwitcher switcher(m_MGLDC); // will go away with MGL6 | |
197 | m_MGLDC->setFontBlendMode(MGL_AA_RGBBLEND); | |
198 | } | |
199 | } | |
200 | ||
201 | ||
202 | // --------------------------------------------------------------------------- | |
203 | // clipping | |
204 | // --------------------------------------------------------------------------- | |
205 | ||
206 | ||
207 | #define DO_SET_CLIPPING_BOX(rg) \ | |
208 | { \ | |
209 | wxRect rect = rg.GetBox(); \ | |
210 | m_clipX1 = (wxCoord) XDEV2LOG(rect.GetLeft()); \ | |
211 | m_clipY1 = (wxCoord) YDEV2LOG(rect.GetTop()); \ | |
212 | m_clipX2 = (wxCoord) XDEV2LOG(rect.GetRight()); \ | |
213 | m_clipY2 = (wxCoord) YDEV2LOG(rect.GetBottom()); \ | |
214 | } | |
215 | ||
216 | void wxDC::DoSetClippingRegion(wxCoord cx, wxCoord cy, wxCoord cw, wxCoord ch) | |
217 | { | |
218 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
219 | ||
220 | wxRect rect(XLOG2DEV(cx), YLOG2DEV(cy), XLOG2DEVREL(cw), YLOG2DEVREL(ch)); | |
221 | ||
222 | if ( !m_currentClippingRegion.IsNull() ) | |
223 | m_currentClippingRegion.Intersect(rect); | |
224 | else | |
225 | m_currentClippingRegion.Union(rect); | |
226 | ||
ef344ff8 | 227 | m_MGLDC->setClipRegion(m_currentClippingRegion.GetMGLRegion()); |
32b8ec41 VZ |
228 | |
229 | m_clipping = TRUE; | |
230 | DO_SET_CLIPPING_BOX(m_currentClippingRegion) | |
231 | } | |
232 | ||
233 | void wxDC::DoSetClippingRegionAsRegion(const wxRegion& region) | |
234 | { | |
235 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
236 | ||
ef344ff8 | 237 | if ( region.IsEmpty() ) |
32b8ec41 VZ |
238 | { |
239 | DestroyClippingRegion(); | |
240 | return; | |
241 | } | |
242 | ||
243 | wxRegion rg(region); | |
244 | ||
245 | // check if the DC is scaled or moved, and if yes, then | |
246 | // convert rg to device coordinates: | |
247 | if ( m_deviceOriginX != 0 || m_deviceOriginY != 0 || | |
248 | XLOG2DEVREL(500) != 500 || YLOG2DEVREL(500) != 500 ) | |
249 | { | |
250 | region_t *mrg = rg.GetMGLRegion().rgnPointer(); | |
251 | span_t *s; | |
252 | segment_t *p; | |
253 | for (s = mrg->spans; s; s = s->next) | |
254 | { | |
255 | s->y = YLOG2DEV(s->y); | |
256 | for (p = s->seg; p; p = p->next) | |
257 | p->x = XLOG2DEV(p->x); | |
258 | } | |
259 | } | |
260 | ||
261 | if ( !m_currentClippingRegion.IsNull() ) | |
262 | m_currentClippingRegion.Intersect(rg); | |
263 | else | |
264 | m_currentClippingRegion.Union(rg); | |
265 | ||
ef344ff8 | 266 | m_MGLDC->setClipRegion(m_currentClippingRegion.GetMGLRegion()); |
32b8ec41 VZ |
267 | |
268 | m_clipping = TRUE; | |
269 | DO_SET_CLIPPING_BOX(m_currentClippingRegion) | |
270 | } | |
271 | ||
272 | void wxDC::DestroyClippingRegion() | |
273 | { | |
274 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
275 | ||
ef344ff8 VS |
276 | if ( !m_globalClippingRegion.IsNull() ) |
277 | { | |
278 | m_MGLDC->setClipRegion(m_globalClippingRegion.GetMGLRegion()); | |
279 | m_currentClippingRegion = m_globalClippingRegion; | |
280 | m_clipping = TRUE; | |
281 | } | |
7bdc1879 | 282 | else |
ef344ff8 | 283 | { |
b8c0528d | 284 | m_MGLDC->setClipRect(MGLRect(0, 0, m_MGLDC->sizex()+1, m_MGLDC->sizey()+1)); |
ef344ff8 VS |
285 | m_clipping = FALSE; |
286 | m_currentClippingRegion.Clear(); | |
287 | } | |
32b8ec41 VZ |
288 | } |
289 | ||
290 | // --------------------------------------------------------------------------- | |
291 | // query capabilities | |
292 | // --------------------------------------------------------------------------- | |
293 | ||
294 | bool wxDC::CanDrawBitmap() const | |
295 | { | |
296 | return TRUE; | |
297 | } | |
298 | ||
299 | bool wxDC::CanGetTextExtent() const | |
300 | { | |
301 | return TRUE; | |
302 | } | |
303 | ||
304 | int wxDC::GetDepth() const | |
305 | { | |
306 | return m_MGLDC->getBitsPerPixel(); | |
307 | } | |
308 | ||
309 | // --------------------------------------------------------------------------- | |
310 | // drawing | |
311 | // --------------------------------------------------------------------------- | |
312 | ||
313 | void wxDC::Clear() | |
314 | { | |
315 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
316 | ||
317 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 | |
fd495ab3 | 318 | if ( m_backgroundBrush.GetStyle() != wxTRANSPARENT ) |
32b8ec41 VZ |
319 | { |
320 | int w, h; | |
321 | wxBrush oldb = m_brush; | |
322 | SetBrush(m_backgroundBrush); | |
323 | SelectBrush(); | |
324 | GetSize(&w, &h); | |
fa7cdd7f | 325 | m_MGLDC->fillRect(0, 0, w, h); |
32b8ec41 VZ |
326 | SetBrush(oldb); |
327 | } | |
328 | } | |
329 | ||
330 | void wxDC::DoFloodFill(wxCoord x, wxCoord y, const wxColour& col, int style) | |
331 | { | |
332 | wxFAIL_MSG( wxT("wxDC::DoFloodFill not implemented") ); | |
333 | } | |
334 | ||
335 | bool wxDC::DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const | |
336 | { | |
337 | wxCHECK_MSG( col, FALSE, _T("NULL colour parameter in wxDC::GetPixel")); | |
338 | ||
339 | uchar r, g, b; | |
340 | m_MGLDC->unpackColorFast(m_MGLDC->getPixel(XLOG2DEV(x), XLOG2DEV(y)), | |
341 | r, g, b); | |
342 | col->Set(r, g, b); | |
343 | return TRUE; | |
344 | } | |
345 | ||
346 | void wxDC::DoCrossHair(wxCoord x, wxCoord y) | |
347 | { | |
348 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
349 | ||
350 | if ( m_pen.GetStyle() != wxTRANSPARENT ) | |
351 | { | |
352 | int w = 0; | |
353 | int h = 0; | |
354 | GetSize(&w, &h); | |
355 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 | |
356 | if ( !m_penSelected ) | |
357 | SelectPen(); | |
358 | wxCoord xx = XLOG2DEV(x); | |
359 | wxCoord yy = YLOG2DEV(y); | |
360 | m_MGLDC->line(m_penOfsX, yy + m_penOfsY, w-1 + m_penOfsX, yy + m_penOfsY); | |
361 | m_MGLDC->line(xx + m_penOfsX, m_penOfsY, x + m_penOfsX, h-1 + m_penOfsY); | |
362 | CalcBoundingBox(0, 0); | |
363 | CalcBoundingBox(w, h); | |
364 | } | |
365 | } | |
366 | ||
367 | void wxDC::DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2) | |
368 | { | |
369 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
370 | ||
371 | if ( m_pen.GetStyle() != wxTRANSPARENT ) | |
372 | { | |
373 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 | |
374 | if ( !m_penSelected ) | |
375 | SelectPen(); | |
c109254c VS |
376 | m_MGLDC->lineExt(XLOG2DEV(x1) + m_penOfsX, XLOG2DEV(y1) + m_penOfsY, |
377 | XLOG2DEV(x2) + m_penOfsX, XLOG2DEV(y2) + m_penOfsY,FALSE); | |
32b8ec41 VZ |
378 | CalcBoundingBox(x1, y1); |
379 | CalcBoundingBox(x2, y2); | |
380 | } | |
381 | } | |
382 | ||
383 | // Draws an arc of a circle, centred on (xc, yc), with starting point (x1, y1) | |
384 | // and ending at (x2, y2) | |
385 | void wxDC::DoDrawArc(wxCoord x1, wxCoord y1, | |
386 | wxCoord x2, wxCoord y2, | |
387 | wxCoord xc, wxCoord yc) | |
388 | { | |
389 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
390 | ||
391 | wxCoord xx1 = XLOG2DEV(x1); | |
392 | wxCoord yy1 = YLOG2DEV(y1); | |
393 | wxCoord xx2 = XLOG2DEV(x2); | |
394 | wxCoord yy2 = YLOG2DEV(y2); | |
395 | wxCoord xxc = XLOG2DEV(xc); | |
396 | wxCoord yyc = YLOG2DEV(yc); | |
397 | double dx = xx1 - xxc; | |
398 | double dy = yy1 - yyc; | |
399 | double radius = sqrt((double)(dx*dx+dy*dy)); | |
400 | wxCoord r = (wxCoord)radius; | |
401 | double radius1, radius2; | |
402 | ||
403 | ||
404 | if (xx1 == xx2 && yy1 == yy2) | |
405 | { | |
406 | radius1 = 0.0; | |
407 | radius2 = 360.0; | |
408 | } | |
409 | else if (radius == 0.0) | |
410 | { | |
411 | radius1 = radius2 = 0.0; | |
412 | } | |
413 | else | |
414 | { | |
415 | radius1 = (xx1 - xxc == 0) ? | |
416 | (yy1 - yyc < 0) ? 90.0 : -90.0 : | |
417 | -atan2(double(yy1-yyc), double(xx1-xxc)) * RAD2DEG; | |
418 | radius2 = (xx2 - xxc == 0) ? | |
419 | (yy2 - yyc < 0) ? 90.0 : -90.0 : | |
420 | -atan2(double(yy2-yyc), double(xx2-xxc)) * RAD2DEG; | |
421 | } | |
422 | wxCoord alpha1 = wxCoord(radius1); | |
423 | wxCoord alpha2 = alpha1 + wxCoord(radius2 - radius1); | |
424 | while (alpha2 <= 0) alpha2 += 360; | |
425 | while (alpha1 > 360) alpha1 -= 360; | |
426 | ||
427 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 | |
428 | if ( m_brush.GetStyle() != wxTRANSPARENT ) | |
429 | { | |
430 | if ( !m_brushSelected ) | |
431 | SelectBrush(); | |
432 | m_MGLDC->fillEllipseArc(xxc, yyc, r, r, alpha1, alpha2); | |
433 | } | |
434 | ||
435 | if ( m_pen.GetStyle() != wxTRANSPARENT ) | |
436 | { | |
437 | if ( !m_penSelected ) | |
438 | SelectPen(); | |
439 | m_MGLDC->ellipseArc(xxc + m_penOfsX, yyc + m_penOfsY, r, r, alpha1, alpha2); | |
440 | } | |
441 | ||
442 | CalcBoundingBox(xc - r, yc - r); | |
443 | CalcBoundingBox(xc + r, yc + r); | |
444 | } | |
445 | ||
446 | void wxDC::DoDrawPoint(wxCoord x, wxCoord y) | |
447 | { | |
448 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
449 | ||
450 | if ( m_pen.GetStyle() != wxTRANSPARENT ) | |
451 | { | |
452 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 | |
453 | if ( !m_penSelected ) | |
454 | SelectPen(); | |
455 | m_MGLDC->pixel(XLOG2DEV(x), YLOG2DEV(y)); | |
456 | CalcBoundingBox(x, y); | |
457 | } | |
458 | } | |
459 | ||
460 | void wxDC::DoDrawPolygon(int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset,int fillStyle) | |
461 | { | |
462 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
463 | ||
464 | wxCoord xxoffset = XLOG2DEVREL(xoffset), | |
465 | yyoffset = YLOG2DEVREL(yoffset); | |
466 | MGLPoint *cpoints = new MGLPoint[n+1]; | |
467 | for (int i = 0; i < n; i++) | |
468 | { | |
469 | CalcBoundingBox(points[i].x + xoffset, points[i].y + yoffset); | |
470 | cpoints[i].x = (int)(XLOG2DEV(points[i].x)); | |
471 | cpoints[i].y = (int)(YLOG2DEV(points[i].y)); | |
472 | } | |
473 | cpoints[n] = cpoints[0]; | |
474 | ||
475 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 | |
476 | if ( m_brush.GetStyle() != wxTRANSPARENT ) | |
477 | { | |
478 | if ( !m_brushSelected ) | |
479 | SelectBrush(); | |
480 | m_MGLDC->fillPolygon(n, cpoints, xxoffset, yyoffset); | |
481 | } | |
482 | ||
483 | if ( m_pen.GetStyle() != wxTRANSPARENT ) | |
484 | { | |
485 | if ( !m_penSelected ) | |
486 | SelectPen(); | |
487 | if (m_penOfsX != 0 || m_penOfsY != 0) | |
488 | { | |
489 | for (int i = 0; i <= n; i++) | |
490 | { | |
491 | cpoints[i].x += m_penOfsX; | |
492 | cpoints[i].y += m_penOfsY; | |
493 | } | |
494 | } | |
495 | m_MGLDC->polyLine(n+1, cpoints); | |
496 | } | |
497 | ||
498 | delete[] cpoints; | |
499 | } | |
500 | ||
501 | void wxDC::DoDrawLines(int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset) | |
502 | { | |
503 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
504 | ||
505 | if ( m_pen.GetStyle() != wxTRANSPARENT ) | |
506 | { | |
507 | MGLPoint *cpoints = new MGLPoint[n]; | |
508 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 | |
509 | if ( !m_penSelected ) | |
510 | SelectPen(); | |
511 | for (int i = 0; i < n; i++) | |
512 | { | |
513 | CalcBoundingBox(points[i].x + xoffset, points[i].y + yoffset); | |
514 | cpoints[i].x = (int)(XLOG2DEV(points[i].x + xoffset) /*+ m_penOfsX*/); | |
515 | cpoints[i].y = (int)(YLOG2DEV(points[i].y + yoffset) /*+ m_penOfsY*/); | |
516 | } | |
517 | m_MGLDC->polyLine(n, cpoints); | |
518 | delete[] cpoints; | |
519 | } | |
520 | } | |
521 | ||
522 | void wxDC::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height) | |
523 | { | |
524 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
525 | ||
526 | wxCoord xx = XLOG2DEV(x); | |
527 | wxCoord yy = YLOG2DEV(y); | |
528 | wxCoord ww = m_signX * XLOG2DEVREL(width); | |
529 | wxCoord hh = m_signY * YLOG2DEVREL(height); | |
530 | ||
531 | if ( ww == 0 || hh == 0 ) return; | |
532 | ||
533 | if ( ww < 0 ) | |
534 | { | |
535 | ww = -ww; | |
536 | xx = xx - ww; | |
537 | } | |
538 | if ( hh < 0 ) | |
539 | { | |
540 | hh = -hh; | |
541 | yy = yy - hh; | |
542 | } | |
543 | ||
544 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 | |
545 | if ( m_brush.GetStyle() != wxTRANSPARENT ) | |
546 | { | |
547 | if ( !m_brushSelected ) | |
548 | SelectBrush(); | |
549 | m_MGLDC->fillRect(xx, yy, xx + ww, yy + hh); | |
550 | } | |
551 | ||
552 | if ( m_pen.GetStyle() != wxTRANSPARENT ) | |
553 | { | |
554 | if ( !m_penSelected ) | |
555 | SelectPen(); | |
556 | m_MGLDC->rect(xx + m_penOfsX, yy + m_penOfsY, | |
557 | xx + ww + m_penOfsX, yy + hh + m_penOfsY); | |
558 | } | |
559 | ||
560 | CalcBoundingBox(x, y); | |
561 | CalcBoundingBox(x + width, y + height); | |
562 | } | |
563 | ||
564 | void wxDC::DoDrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius) | |
565 | { | |
566 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
567 | ||
568 | if ( radius < 0.0 ) | |
569 | radius = -radius * ((width < height) ? width : height); | |
570 | ||
571 | wxCoord xx = XLOG2DEV(x); | |
572 | wxCoord yy = YLOG2DEV(y); | |
573 | wxCoord ww = m_signX * XLOG2DEVREL(width); | |
574 | wxCoord hh = m_signY * YLOG2DEVREL(height); | |
575 | wxCoord rr = XLOG2DEVREL((wxCoord)radius); | |
576 | ||
577 | // CMB: handle -ve width and/or height | |
578 | if ( ww < 0 ) | |
579 | { | |
580 | ww = -ww; | |
581 | xx = xx - ww; | |
582 | } | |
583 | if ( hh < 0 ) | |
584 | { | |
585 | hh = -hh; | |
586 | yy = yy - hh; | |
587 | } | |
588 | ||
589 | // CMB: if radius is zero use DrawRectangle() instead to avoid | |
590 | // X drawing errors with small radii | |
591 | if ( rr == 0 ) | |
592 | { | |
593 | DrawRectangle(x, y, width, height); | |
594 | return; | |
595 | } | |
596 | ||
597 | // CMB: draw nothing if transformed w or h is 0 | |
598 | if ( ww == 0 || hh == 0 ) return; | |
599 | ||
600 | // CMB: ensure dd is not larger than rectangle otherwise we | |
601 | // get an hour glass shape | |
602 | wxCoord dd = 2 * rr; | |
603 | if ( dd > ww ) dd = ww; | |
604 | if ( dd > hh ) dd = hh; | |
605 | rr = dd / 2; | |
606 | ||
607 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 | |
608 | if ( m_brush.GetStyle() != wxTRANSPARENT ) | |
609 | { | |
610 | if (!m_brushSelected) | |
611 | SelectBrush(); | |
612 | m_MGLDC->fillRect(xx+rr, yy, xx+ww-rr, yy+hh); | |
613 | m_MGLDC->fillRect(xx, yy+rr, xx+ww, yy+hh-rr); | |
614 | m_MGLDC->fillEllipseArc(xx+rr, yy+rr, rr, rr, 90, 180); | |
615 | m_MGLDC->fillEllipseArc(xx+ww-rr, yy+rr, rr, rr, 0, 90); | |
616 | m_MGLDC->fillEllipseArc(xx+rr, yy+hh-rr, rr, rr, 180, 270); | |
617 | m_MGLDC->fillEllipseArc(xx+ww-rr, yy+hh-rr, rr, rr, 270, 0); | |
618 | } | |
619 | ||
620 | if ( m_pen.GetStyle() != wxTRANSPARENT ) | |
621 | { | |
622 | if ( !m_penSelected ) | |
623 | SelectPen(); | |
624 | xx += m_penOfsX; | |
625 | yy += m_penOfsY; | |
626 | m_MGLDC->line(xx+rr+1, yy, xx+ww-rr, yy); | |
627 | m_MGLDC->ellipseArc(xx+ww-rr, yy+rr, rr, rr, 0, 90); | |
628 | m_MGLDC->line(xx+ww, yy+rr+1, xx+ww, yy+hh-rr); | |
629 | m_MGLDC->ellipseArc(xx+ww-rr, yy+hh-rr, rr, rr, 270, 0); | |
630 | m_MGLDC->line(xx+ww-rr, yy+hh, xx+rr+1, yy+hh); | |
631 | m_MGLDC->ellipseArc(xx+rr, yy+hh-rr, rr, rr, 180, 270); | |
632 | m_MGLDC->line(xx, yy+hh-rr, xx, yy+rr+1); | |
633 | m_MGLDC->ellipseArc(xx+rr, yy+rr, rr, rr, 90, 180); | |
634 | } | |
635 | ||
636 | CalcBoundingBox(x, y); | |
637 | CalcBoundingBox(x + width, y + height); | |
638 | } | |
639 | ||
640 | void wxDC::DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height) | |
641 | { | |
642 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
643 | ||
644 | wxCoord x2 = (x+width); | |
645 | wxCoord y2 = (y+height); | |
646 | ||
647 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 | |
648 | if ( m_brush.GetStyle() != wxTRANSPARENT ) | |
649 | { | |
650 | if ( !m_brushSelected ) | |
651 | SelectBrush(); | |
652 | MGLRect rect(XLOG2DEV(x), YLOG2DEV(y), XLOG2DEV(x2), YLOG2DEV(y2)); | |
653 | m_MGLDC->fillEllipse(rect); | |
654 | } | |
655 | ||
656 | if ( m_pen.GetStyle() != wxTRANSPARENT ) | |
657 | { | |
658 | if ( !m_penSelected ) | |
659 | SelectPen(); | |
660 | MGLRect rect(XLOG2DEV(x) + m_penOfsX, YLOG2DEV(y) + m_penOfsY, | |
661 | XLOG2DEV(x2) + m_penOfsX, YLOG2DEV(y2) + m_penOfsY); | |
662 | m_MGLDC->ellipse(rect); | |
663 | } | |
664 | ||
665 | CalcBoundingBox(x, y); | |
666 | CalcBoundingBox(x2, y2); | |
667 | } | |
668 | ||
669 | void wxDC::DoDrawEllipticArc(wxCoord x,wxCoord y,wxCoord w,wxCoord h,double sa,double ea) | |
670 | { | |
671 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
672 | ||
673 | wxCoord x2 = (x+w); | |
674 | wxCoord y2 = (y+h); | |
675 | ||
676 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 | |
677 | if ( m_brush.GetStyle() != wxTRANSPARENT ) | |
678 | { | |
679 | if (!m_brushSelected) SelectBrush(); | |
680 | MGLRect rect(XLOG2DEV(x), YLOG2DEV(y), XLOG2DEV(x2), YLOG2DEV(y2)); | |
681 | m_MGLDC->fillEllipseArc(rect, (int)sa, (int)ea); | |
682 | } | |
683 | ||
684 | if ( m_pen.GetStyle() != wxTRANSPARENT ) | |
685 | { | |
686 | if ( !m_penSelected ) | |
687 | SelectPen(); | |
688 | MGLRect rect(XLOG2DEV(x) + m_penOfsX, YLOG2DEV(y) + m_penOfsY, | |
689 | XLOG2DEV(x2) + m_penOfsX, YLOG2DEV(y2) + m_penOfsY); | |
690 | m_MGLDC->ellipseArc(rect, (int)sa, (int)ea); | |
691 | } | |
692 | ||
693 | CalcBoundingBox(x, y); | |
694 | CalcBoundingBox(x2, y2); | |
695 | } | |
696 | ||
697 | void wxDC::DoDrawText(const wxString& text, wxCoord x, wxCoord y) | |
698 | { | |
32b8ec41 VZ |
699 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 |
700 | DrawAnyText(text, x, y); | |
701 | ||
702 | // update the bounding box | |
703 | wxCoord w, h; | |
704 | CalcBoundingBox(x, y); | |
705 | GetTextExtent(text, &w, &h); | |
706 | CalcBoundingBox(x + w, y + h); | |
707 | } | |
708 | ||
709 | bool wxDC::SelectMGLFont() | |
710 | { | |
711 | if ( m_mglFont == NULL ) | |
712 | { | |
713 | float scale = m_scaleY; | |
714 | bool antialiased = (GetDepth() > 8); | |
715 | ||
716 | m_mglFont = m_font.GetMGLfont_t(scale, antialiased); | |
717 | wxCHECK_MSG( m_mglFont, FALSE, wxT("invalid font") ); | |
718 | ||
719 | m_MGLDC->useFont(m_mglFont); | |
720 | wxLogTrace("mgl_font", "useFont(%p)", m_mglFont); | |
721 | ||
722 | #if !wxUSE_UNICODE | |
723 | wxNativeEncodingInfo nativeEnc; | |
724 | wxFontEncoding encoding = m_font.GetEncoding(); | |
725 | if ( !wxGetNativeFontEncoding(encoding, &nativeEnc) || | |
726 | !wxTestFontEncoding(nativeEnc) ) | |
727 | { | |
728 | #if wxUSE_FONTMAP | |
729 | if ( !wxTheFontMapper->GetAltForEncoding(encoding, &nativeEnc) ) | |
730 | #endif | |
731 | { | |
732 | nativeEnc.mglEncoding = MGL_ENCODING_ASCII; | |
733 | } | |
734 | } | |
735 | m_MGLDC->setTextEncoding(nativeEnc.mglEncoding); | |
736 | #endif | |
737 | } | |
738 | return TRUE; | |
739 | } | |
740 | ||
741 | void wxDC::DrawAnyText(const wxString& text, wxCoord x, wxCoord y) | |
742 | { | |
743 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
744 | ||
745 | SelectMGLFont(); | |
746 | ||
32b8ec41 VZ |
747 | // Render the text: |
748 | wxCoord xx = XLOG2DEV(x); | |
749 | wxCoord yy = YLOG2DEV(y); | |
21a700f3 | 750 | |
32b8ec41 VZ |
751 | m_MGLDC->setLineStyle(MGL_LINE_STIPPLE); |
752 | m_MGLDC->setLineStipple(0xFFFF); | |
753 | m_MGLDC->setPenSize(1, 1); | |
754 | m_MGLDC->setPenStyle(MGL_BITMAP_SOLID); | |
21a700f3 | 755 | |
32b8ec41 VZ |
756 | #if wxUSE_UNICODE |
757 | const wchar_t *c_text = text.c_str(); | |
758 | #else | |
759 | const char *c_text = text.c_str(); | |
760 | #endif | |
21a700f3 VS |
761 | |
762 | #if 1 | |
763 | // FIXME_MGL - this is a temporary hack in absence of proper | |
764 | // implementation of solid text background in MGL. Once | |
765 | // the bug in MGL is fixed, this code should be nuked | |
766 | // immediately. Note that the code is not 100% correct; | |
767 | // it only works with wxCOPY logical function | |
768 | if ( m_backgroundMode == wxSOLID ) | |
769 | { | |
770 | int w = m_MGLDC->textWidth(c_text); | |
771 | int h = m_MGLDC->textHeight(); | |
772 | m_MGLDC->setColor(m_MGLDC->packColorFast(m_textBackgroundColour.Red(), | |
773 | m_textBackgroundColour.Green(), m_textBackgroundColour.Blue())); | |
774 | m_MGLDC->fillRect(xx, yy, xx+w, yy+h); | |
775 | } | |
776 | #endif | |
777 | ||
778 | m_MGLDC->setColor(m_MGLDC->packColorFast(m_textForegroundColour.Red(), | |
779 | m_textForegroundColour.Green(), m_textForegroundColour.Blue())); | |
780 | m_MGLDC->setBackColor(m_MGLDC->packColorFast(m_textBackgroundColour.Red(), | |
781 | m_textBackgroundColour.Green(), m_textBackgroundColour.Blue())); | |
782 | ||
32b8ec41 VZ |
783 | m_MGLDC->drawStr(xx, yy, c_text); |
784 | ||
785 | // Render underline: | |
786 | if ( m_font.GetUnderlined() ) | |
787 | { | |
788 | int x1 = xx, y1 = yy; | |
a4bbc9f7 | 789 | int x2 = 0 , y2 = 0; |
32b8ec41 VZ |
790 | int w = m_MGLDC->textWidth(c_text); |
791 | m_MGLDC->underScoreLocation(x1, y1, c_text); | |
792 | switch (m_MGLDC->getTextDirection()) | |
793 | { | |
794 | case MGL_RIGHT_DIR: x2 = x1 + w, y2 = y1; break; | |
795 | case MGL_LEFT_DIR: x2 = x1 - w, y2 = y1; break; | |
796 | case MGL_UP_DIR: x2 = x1, y2 = y1 - w; break; | |
797 | case MGL_DOWN_DIR: x2 = x1, y2 = y1 + w; break; | |
798 | } | |
799 | m_MGLDC->line(x1, y1, x2, y2); | |
800 | } | |
801 | ||
802 | m_penSelected = m_brushSelected = FALSE; | |
803 | } | |
804 | ||
805 | void wxDC::DoDrawRotatedText(const wxString& text, | |
806 | wxCoord x, wxCoord y, | |
807 | double angle) | |
808 | { | |
32b8ec41 VZ |
809 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 |
810 | ||
811 | if ( angle == 0 ) | |
812 | { | |
813 | DoDrawText(text, x, y); | |
814 | return; | |
815 | } | |
816 | else if ( angle == 90.0 ) | |
817 | m_MGLDC->setTextDirection(MGL_UP_DIR); | |
818 | else if ( angle == 180.0 ) | |
819 | m_MGLDC->setTextDirection(MGL_LEFT_DIR); | |
820 | else if ( angle == 270.0 ) | |
821 | m_MGLDC->setTextDirection(MGL_DOWN_DIR); | |
822 | else | |
823 | { | |
824 | // FIXME_MGL -- implement once MGL supports it | |
825 | wxFAIL_MSG(wxT("wxMGL only supports rotated text with angle 0,90,180 or 270")); | |
826 | return; | |
827 | } | |
828 | ||
829 | DrawAnyText(text, x, y); | |
830 | ||
831 | // Restore default: | |
832 | m_MGLDC->setTextDirection(MGL_RIGHT_DIR); | |
833 | } | |
834 | ||
835 | // --------------------------------------------------------------------------- | |
836 | // set GDI objects | |
837 | // --------------------------------------------------------------------------- | |
838 | ||
839 | void wxDC::SelectMGLStipplePen(int style) | |
840 | { | |
841 | ushort stipple; | |
842 | ||
843 | switch (style) | |
844 | { | |
845 | case wxDOT: stipple = STIPPLE_wxDOT; break; | |
846 | case wxLONG_DASH: stipple = STIPPLE_wxLONG_DASH; break; | |
847 | case wxSHORT_DASH: stipple = STIPPLE_wxSHORT_DASH; break; | |
848 | case wxDOT_DASH: stipple = STIPPLE_wxDOT_DASH; break; | |
849 | default: stipple = STIPPLE_wxSOLID; break; | |
850 | } | |
851 | ||
852 | m_MGLDC->setLineStyle(MGL_LINE_STIPPLE); | |
853 | m_MGLDC->setLineStipple(stipple); | |
854 | m_MGLDC->setPenSize(1, 1); | |
855 | m_MGLDC->setPenStyle(MGL_BITMAP_SOLID); | |
856 | m_penOfsY = m_penOfsX = 0; | |
857 | } | |
858 | ||
859 | // Accepted valus of SelectMGLFatPen's 2nd argument | |
860 | enum { | |
861 | wxMGL_SELECT_FROM_PEN, | |
862 | wxMGL_SELECT_FROM_BRUSH | |
863 | }; | |
864 | ||
865 | void wxDC::SelectMGLFatPen(int style, int flag) | |
866 | { | |
867 | MGL_penStyleType penstyle; | |
868 | const pattern_t *pattern = NULL; | |
869 | pixpattern24_t *pixPattern = NULL; | |
870 | int wx, wy; | |
871 | int slot; | |
872 | ||
873 | // Since MGL pens may be created from wxBrush or wxPen and we often | |
874 | // switch between pens and brushes, we take advantage of MGL's ability | |
875 | // to have multiple (pix)pattern_t's loaded. We always download pen | |
876 | // to 0th slot and brush to 1st slot. | |
877 | if ( flag == wxMGL_SELECT_FROM_PEN ) | |
878 | slot = 0; | |
879 | else | |
880 | slot = 1; | |
881 | ||
882 | // compute pen's width: | |
883 | if ( m_pen.GetWidth() <= 1 ) | |
884 | { | |
885 | wx = wy = 1; | |
886 | m_penOfsX = m_penOfsY = 0; | |
887 | } | |
888 | else | |
889 | { | |
890 | wx = (int)(0.5 + fabs((double) XLOG2DEVREL(m_pen.GetWidth()))); | |
891 | wy = (int)(0.5 + fabs((double) YLOG2DEVREL(m_pen.GetWidth()))); | |
892 | m_penOfsX = -wx/2; | |
893 | m_penOfsY = -wy/2; | |
894 | } | |
895 | ||
896 | // find pen's type: | |
897 | penstyle = MGL_BITMAP_TRANSPARENT; | |
898 | switch (style) | |
899 | { | |
900 | case wxBDIAGONAL_HATCH: pattern = &PATTERN_wxBDIAGONAL_HATCH; | |
901 | penstyle = MGL_BITMAP_TRANSPARENT; | |
902 | break; | |
903 | case wxCROSSDIAG_HATCH: pattern = &PATTERN_wxCROSSDIAG_HATCH; | |
904 | penstyle = MGL_BITMAP_TRANSPARENT; | |
905 | break; | |
906 | case wxFDIAGONAL_HATCH: pattern = &PATTERN_wxFDIAGONAL_HATCH; | |
907 | penstyle = MGL_BITMAP_TRANSPARENT; | |
908 | break; | |
909 | case wxCROSS_HATCH: pattern = &PATTERN_wxCROSS_HATCH; | |
910 | penstyle = MGL_BITMAP_TRANSPARENT; | |
911 | break; | |
912 | case wxHORIZONTAL_HATCH: pattern = &PATTERN_wxHORIZONTAL_HATCH; | |
913 | penstyle = MGL_BITMAP_TRANSPARENT; | |
914 | break; | |
915 | case wxVERTICAL_HATCH: pattern = &PATTERN_wxVERTICAL_HATCH; | |
916 | penstyle = MGL_BITMAP_TRANSPARENT; | |
917 | break; | |
918 | ||
919 | case wxSTIPPLE: | |
920 | if ( flag == wxMGL_SELECT_FROM_PEN ) | |
921 | pixPattern = (pixpattern24_t*) m_pen.GetPixPattern(); | |
922 | else | |
923 | pixPattern = (pixpattern24_t*) m_brush.GetPixPattern(); | |
924 | penstyle = MGL_PIXMAP; | |
925 | break; | |
926 | ||
927 | case wxSTIPPLE_MASK_OPAQUE: | |
928 | pattern = (pattern_t*) m_brush.GetMaskPattern(); | |
929 | penstyle = MGL_BITMAP_OPAQUE; | |
930 | break; | |
931 | ||
932 | case wxSOLID: | |
933 | default: | |
934 | penstyle = MGL_BITMAP_SOLID; break; | |
935 | } | |
936 | ||
937 | // ...and finally, pass the pen to MGL: | |
938 | ||
939 | if ( pattern ) | |
940 | { | |
941 | if ( !m_downloadedPatterns[slot] ) | |
942 | { | |
943 | m_MGLDC->setPenBitmapPattern(slot, pattern); | |
944 | m_downloadedPatterns[slot] = TRUE; | |
945 | } | |
946 | m_MGLDC->usePenBitmapPattern(slot); | |
947 | } | |
948 | ||
949 | if ( pixPattern ) | |
950 | { | |
951 | if ( !m_downloadedPatterns[slot] ) | |
952 | { | |
953 | pixpattern_t pix; | |
954 | int x, y, c; | |
955 | ||
956 | switch (GetDepth()) | |
957 | { | |
958 | case 8: | |
959 | for (y = 0; y < 8; y++) | |
960 | for (x = 0; x < 8; x++) | |
961 | pix.b8.p[x][y] = m_MGLDC->packColorFast( | |
962 | pixPattern->p[x][y][0], | |
963 | pixPattern->p[x][y][1], | |
964 | pixPattern->p[x][y][2]); | |
965 | break; | |
966 | case 15: | |
967 | case 16: | |
968 | for (y = 0; y < 8; y++) | |
969 | for (x = 0; x < 8; x++) | |
970 | pix.b16.p[x][y] = m_MGLDC->packColorFast( | |
971 | pixPattern->p[x][y][0], | |
972 | pixPattern->p[x][y][1], | |
973 | pixPattern->p[x][y][2]); | |
974 | break; | |
975 | case 24: | |
976 | for (y = 0; y < 8; y++) | |
977 | for (x = 0; x < 8; x++) | |
978 | for (c = 0; c < 3; c++) | |
979 | pix.b24.p[x][y][c] = pixPattern->p[x][y][c]; | |
980 | break; | |
981 | case 32: | |
982 | for (y = 0; y < 8; y++) | |
983 | for (x = 0; x < 8; x++) | |
984 | pix.b32.p[x][y] = m_MGLDC->packColorFast( | |
985 | pixPattern->p[x][y][0], | |
986 | pixPattern->p[x][y][1], | |
987 | pixPattern->p[x][y][2]); | |
988 | break; | |
989 | default: | |
990 | wxFAIL_MSG(_T("invalid DC depth")); | |
991 | break; | |
992 | } | |
993 | m_MGLDC->setPenPixmapPattern(slot, &pix); | |
994 | m_downloadedPatterns[slot] = TRUE; | |
995 | } | |
996 | m_MGLDC->usePenPixmapPattern(slot); | |
997 | } | |
998 | ||
999 | m_MGLDC->setLineStyle(MGL_LINE_PENSTYLE); | |
1000 | m_MGLDC->setPenStyle(penstyle); | |
1001 | m_MGLDC->setPenSize(wy, wx); | |
1002 | } | |
1003 | ||
1004 | void wxDC::SelectPen() | |
1005 | { | |
1006 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
1007 | ||
1008 | wxColour& clr = m_pen.GetColour(); | |
1009 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 | |
1010 | m_MGLDC->setColorRGB(clr.Red(), clr.Green(), clr.Blue()); | |
1011 | ||
1012 | switch (m_pen.GetStyle()) | |
1013 | { | |
1014 | case wxTRANSPARENT: | |
1015 | break; | |
1016 | ||
1017 | case wxDOT: | |
1018 | case wxLONG_DASH: | |
1019 | case wxSHORT_DASH: | |
1020 | case wxDOT_DASH: | |
1021 | SelectMGLStipplePen(m_pen.GetStyle()); | |
1022 | break; | |
1023 | ||
1024 | case wxBDIAGONAL_HATCH: | |
1025 | case wxCROSSDIAG_HATCH: | |
1026 | case wxFDIAGONAL_HATCH: | |
1027 | case wxCROSS_HATCH: | |
1028 | case wxHORIZONTAL_HATCH: | |
1029 | case wxVERTICAL_HATCH: | |
1030 | SelectMGLFatPen(m_pen.GetStyle(), wxMGL_SELECT_FROM_PEN); | |
1031 | break; | |
1032 | ||
1033 | case wxSTIPPLE: | |
1034 | SelectMGLFatPen(m_pen.GetStyle(), wxMGL_SELECT_FROM_PEN); | |
1035 | break; | |
1036 | ||
1037 | case wxSOLID: | |
1038 | case wxUSER_DASH: | |
1039 | default: | |
1040 | if ( m_pen.GetWidth() <= 1 ) | |
1041 | SelectMGLStipplePen(wxSOLID); | |
1042 | else | |
1043 | SelectMGLFatPen(wxSOLID, wxMGL_SELECT_FROM_PEN); | |
1044 | break; | |
1045 | } | |
1046 | m_penSelected = TRUE; | |
1047 | m_brushSelected = FALSE; | |
1048 | } | |
1049 | ||
1050 | void wxDC::SelectBrush() | |
1051 | { | |
1052 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
1053 | ||
1054 | wxColour fg, bg; | |
1055 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 | |
1056 | ||
1057 | if ( m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE ) | |
1058 | { | |
1059 | fg = m_textForegroundColour; | |
1060 | bg = m_textBackgroundColour; | |
1061 | } | |
1062 | else | |
1063 | { | |
1064 | fg = m_brush.GetColour(); | |
1065 | bg = m_backgroundBrush.GetColour(); | |
1066 | } | |
1067 | ||
1068 | m_MGLDC->setColorRGB(fg.Red(), fg.Green(), fg.Blue()); | |
1069 | m_MGLDC->setBackColor(m_MGLDC->packColorFast(bg.Red(), bg.Green(), bg.Blue())); | |
1070 | m_penSelected = FALSE; | |
1071 | m_brushSelected = TRUE; | |
1072 | ||
1073 | SelectMGLFatPen(m_brush.GetStyle(), wxMGL_SELECT_FROM_BRUSH); | |
1074 | } | |
1075 | ||
1076 | void wxDC::SetPen(const wxPen& pen) | |
1077 | { | |
1078 | if ( !pen.Ok() ) return; | |
1079 | if ( m_pen == pen ) return; | |
1080 | m_pen = pen; | |
1081 | m_penSelected = FALSE; | |
1082 | m_downloadedPatterns[0] = FALSE; | |
1083 | } | |
1084 | ||
1085 | void wxDC::SetBrush(const wxBrush& brush) | |
1086 | { | |
1087 | if ( !brush.Ok() ) return; | |
1088 | if ( m_brush == brush ) return; | |
1089 | m_brush = brush; | |
1090 | m_brushSelected = FALSE; | |
1091 | m_downloadedPatterns[1] = FALSE; | |
1092 | } | |
1093 | ||
1094 | void wxDC::SetPalette(const wxPalette& palette) | |
1095 | { | |
1096 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
1097 | ||
1098 | if ( palette == wxNullPalette ) | |
1099 | { | |
1100 | SetPalette(m_oldPalette); | |
1101 | return; | |
1102 | } | |
1103 | ||
1104 | if ( !palette.Ok() ) return; | |
1105 | if ( m_palette == palette ) return; | |
1106 | m_oldPalette = m_palette; | |
1107 | m_palette = palette; | |
1108 | ||
1109 | int cnt = m_palette.GetColoursCount(); | |
1110 | palette_t *pal = m_palette.GetMGLpalette_t(); | |
1111 | m_MGLDC->setPalette(pal, cnt, 0); | |
1112 | m_MGLDC->realizePalette(cnt, 0, TRUE); | |
1113 | } | |
1114 | ||
1115 | void wxDC::SetFont(const wxFont& font) | |
1116 | { | |
1117 | wxCHECK_RET( font.Ok(), wxT("invalid font") ); | |
1118 | m_font = font; | |
1119 | m_mglFont = NULL; | |
1120 | } | |
1121 | ||
1122 | void wxDC::SetBackground(const wxBrush& brush) | |
1123 | { | |
1124 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
1125 | ||
1126 | if (!m_backgroundBrush.Ok()) return; | |
1127 | ||
1128 | m_backgroundBrush = brush; | |
1129 | wxColour &clr = m_backgroundBrush.GetColour(); | |
1130 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 | |
1131 | m_MGLDC->setBackColor( | |
1132 | m_MGLDC->packColorFast(clr.Red(), clr.Green(), clr.Blue())); | |
1133 | } | |
1134 | ||
1135 | void wxDC::SetBackgroundMode(int mode) | |
1136 | { | |
1137 | m_backgroundMode = mode; | |
1138 | if ( mode == wxSOLID ) | |
1139 | m_MGLDC->setBackMode(MGL_OPAQUE_BACKGROUND); | |
1140 | else | |
1141 | m_MGLDC->setBackMode(MGL_TRANSPARENT_BACKGROUND); | |
1142 | } | |
1143 | ||
1144 | void wxDC::SetLogicalFunction(int function) | |
1145 | { | |
1146 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
1147 | ||
1148 | m_logicalFunction = function; | |
1149 | ||
1150 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 | |
1151 | m_MGLDC->setWriteMode(LogicalFunctionToMGLRop(m_logicalFunction)); | |
1152 | } | |
1153 | ||
1154 | int wxDC::LogicalFunctionToMGLRop(int logFunc) const | |
1155 | { | |
1156 | MGL_writeModeType rop; | |
1157 | ||
1158 | switch (logFunc) | |
1159 | { | |
1160 | case wxCLEAR: rop = MGL_R2_BLACK; break; | |
1161 | case wxXOR: rop = MGL_R2_XORSRC; break; | |
1162 | case wxINVERT: rop = MGL_R2_NOT; break; | |
1163 | case wxOR_REVERSE: rop = MGL_R2_MERGESRCNOT; break; | |
1164 | case wxAND_REVERSE: rop = MGL_R2_MASKSRCNOT; break; | |
1165 | case wxCOPY: rop = MGL_R2_COPYSRC; break; | |
1166 | case wxAND: rop = MGL_R2_MASKSRC; break; | |
1167 | case wxAND_INVERT: rop = MGL_R2_MASKNOTSRC; break; | |
1168 | case wxNO_OP: rop = MGL_R2_NOP; break; | |
1169 | case wxNOR: rop = MGL_R2_NOTMERGESRC; break; | |
1170 | case wxEQUIV: rop = MGL_R2_NOTXORSRC; break; | |
1171 | case wxSRC_INVERT: rop = MGL_R2_NOTCOPYSRC; break; | |
1172 | case wxOR_INVERT: rop = MGL_R2_MERGENOTSRC; break; | |
1173 | case wxNAND: rop = MGL_R2_NOTMASKSRC; break; | |
1174 | case wxOR: rop = MGL_R2_MERGESRC; break; | |
1175 | case wxSET: rop = MGL_R2_WHITE; break; | |
1176 | default: | |
1177 | wxFAIL_MSG( wxT("unsupported logical function") ); | |
1178 | return MGL_REPLACE_MODE; | |
1179 | } | |
1180 | return (int)rop; | |
1181 | } | |
1182 | ||
1183 | bool wxDC::StartDoc(const wxString& message) | |
1184 | { | |
1185 | // We might be previewing, so return TRUE to let it continue. | |
1186 | return TRUE; | |
1187 | } | |
1188 | ||
1189 | void wxDC::EndDoc() | |
1190 | { | |
1191 | } | |
1192 | ||
1193 | void wxDC::StartPage() | |
1194 | { | |
1195 | } | |
1196 | ||
1197 | void wxDC::EndPage() | |
1198 | { | |
1199 | } | |
1200 | ||
1201 | // --------------------------------------------------------------------------- | |
1202 | // text metrics | |
1203 | // --------------------------------------------------------------------------- | |
1204 | ||
1205 | wxCoord wxDC::GetCharHeight() const | |
1206 | { | |
1207 | wxCurrentDCSwitcher switcher(m_MGLDC); | |
1208 | if ( !wxConstCast(this, wxDC)->SelectMGLFont() ) return -1; | |
1209 | return YDEV2LOGREL(m_mglFont->fontHeight); | |
1210 | } | |
1211 | ||
1212 | wxCoord wxDC::GetCharWidth() const | |
1213 | { | |
1214 | wxCurrentDCSwitcher switcher(m_MGLDC); | |
1215 | if ( !wxConstCast(this, wxDC)->SelectMGLFont() ) return -1; | |
1216 | // VS: wxT() is intentional, charWidth() has both char and wchar_t version | |
1217 | // VS: YDEV is corrent, it should *not* be XDEV, because font's are only | |
1218 | // scaled according to m_scaleY | |
1219 | return YDEV2LOGREL(m_mglFont->fontWidth); | |
1220 | } | |
1221 | ||
1222 | void wxDC::DoGetTextExtent(const wxString& string, wxCoord *x, wxCoord *y, | |
1223 | wxCoord *descent, wxCoord *externalLeading, | |
1224 | wxFont *theFont) const | |
1225 | { | |
1226 | wxFont oldFont; | |
1227 | ||
1228 | if ( theFont != NULL ) | |
1229 | { | |
1230 | oldFont = m_font; | |
1231 | wxConstCast(this, wxDC)->SetFont(*theFont); | |
1232 | } | |
1233 | ||
1234 | wxCurrentDCSwitcher switcher(m_MGLDC); | |
1235 | if ( !wxConstCast(this, wxDC)->SelectMGLFont() ) return; | |
1236 | ||
1237 | if ( x ) | |
1238 | // VS: YDEV is corrent, it should *not* be XDEV, because font's are | |
1239 | // only scaled according to m_scaleY | |
1240 | *x = YDEV2LOGREL(m_MGLDC->textWidth(string.c_str())); | |
1241 | if ( y ) | |
1242 | *y = YDEV2LOGREL(m_MGLDC->textHeight()); | |
1243 | if ( descent ) | |
1244 | *descent = YDEV2LOGREL(m_mglFont->descent); | |
1245 | if ( externalLeading ) | |
1246 | *externalLeading = YDEV2LOGREL(m_mglFont->leading); | |
a46935cb | 1247 | |
32b8ec41 VZ |
1248 | if ( theFont != NULL ) |
1249 | wxConstCast(this, wxDC)->SetFont(oldFont); | |
1250 | } | |
1251 | ||
1252 | ||
1253 | ||
1254 | // --------------------------------------------------------------------------- | |
1255 | // mapping modes | |
1256 | // --------------------------------------------------------------------------- | |
1257 | ||
1258 | void wxDC::ComputeScaleAndOrigin() | |
1259 | { | |
1260 | double newX = m_logicalScaleX * m_userScaleX; | |
1261 | double newY = m_logicalScaleY * m_userScaleY; | |
1262 | ||
1263 | // make sure font will be reloaded before drawing: | |
1264 | if ( newY != m_scaleY ) | |
1265 | m_mglFont = NULL; | |
1266 | // make sure m_penOfs{X,Y} will be reevaluated before drawing: | |
1267 | if ( newY != m_scaleY || newX != m_scaleX ) | |
1268 | m_penSelected = FALSE; | |
1269 | ||
1270 | m_scaleX = newX, m_scaleY = newY; | |
1271 | } | |
1272 | ||
1273 | void wxDC::SetMapMode(int mode) | |
1274 | { | |
1275 | switch (mode) | |
1276 | { | |
1277 | case wxMM_TWIPS: | |
1278 | SetLogicalScale(twips2mm*m_mm_to_pix_x, twips2mm*m_mm_to_pix_y); | |
1279 | break; | |
1280 | case wxMM_POINTS: | |
1281 | SetLogicalScale(pt2mm*m_mm_to_pix_x, pt2mm*m_mm_to_pix_y); | |
1282 | break; | |
1283 | case wxMM_METRIC: | |
1284 | SetLogicalScale(m_mm_to_pix_x, m_mm_to_pix_y); | |
1285 | break; | |
1286 | case wxMM_LOMETRIC: | |
1287 | SetLogicalScale(m_mm_to_pix_x/10.0, m_mm_to_pix_y/10.0); | |
1288 | break; | |
1289 | default: | |
1290 | case wxMM_TEXT: | |
1291 | SetLogicalScale(1.0, 1.0); | |
1292 | break; | |
1293 | } | |
1294 | m_mappingMode = mode; | |
1295 | } | |
1296 | ||
1297 | void wxDC::SetUserScale( double x, double y ) | |
1298 | { | |
1299 | // allow negative ? -> no | |
1300 | m_userScaleX = x; | |
1301 | m_userScaleY = y; | |
1302 | ComputeScaleAndOrigin(); | |
1303 | } | |
1304 | ||
1305 | void wxDC::SetLogicalScale( double x, double y ) | |
1306 | { | |
1307 | // allow negative ? | |
1308 | m_logicalScaleX = x; | |
1309 | m_logicalScaleY = y; | |
1310 | ComputeScaleAndOrigin(); | |
1311 | } | |
1312 | ||
1313 | void wxDC::SetLogicalOrigin( wxCoord x, wxCoord y ) | |
1314 | { | |
1315 | m_logicalOriginX = x * m_signX; // is this still correct ? | |
1316 | m_logicalOriginY = y * m_signY; | |
1317 | ComputeScaleAndOrigin(); | |
1318 | } | |
1319 | ||
1320 | void wxDC::SetDeviceOrigin( wxCoord x, wxCoord y ) | |
1321 | { | |
1322 | // only wxPostScripDC has m_signX = -1, we override SetDeviceOrigin there | |
1323 | m_deviceOriginX = x; | |
1324 | m_deviceOriginY = y; | |
1325 | ComputeScaleAndOrigin(); | |
1326 | } | |
1327 | ||
1328 | void wxDC::SetAxisOrientation( bool xLeftRight, bool yBottomUp ) | |
1329 | { | |
1330 | // only wxPostScripDC has m_signX = -1, we override SetAxisOrientation there | |
1331 | m_signX = (xLeftRight ? 1 : -1); | |
1332 | m_signY = (yBottomUp ? -1 : 1); | |
1333 | ComputeScaleAndOrigin(); | |
1334 | } | |
1335 | ||
1336 | // --------------------------------------------------------------------------- | |
1337 | // coordinates transformations | |
1338 | // --------------------------------------------------------------------------- | |
1339 | ||
1340 | wxCoord wxDCBase::DeviceToLogicalX(wxCoord x) const | |
1341 | { | |
1342 | return ((wxDC *)this)->XDEV2LOG(x); | |
1343 | } | |
1344 | ||
1345 | wxCoord wxDCBase::DeviceToLogicalY(wxCoord y) const | |
1346 | { | |
1347 | return ((wxDC *)this)->YDEV2LOG(y); | |
1348 | } | |
1349 | ||
1350 | wxCoord wxDCBase::DeviceToLogicalXRel(wxCoord x) const | |
1351 | { | |
1352 | return ((wxDC *)this)->XDEV2LOGREL(x); | |
1353 | } | |
1354 | ||
1355 | wxCoord wxDCBase::DeviceToLogicalYRel(wxCoord y) const | |
1356 | { | |
1357 | return ((wxDC *)this)->YDEV2LOGREL(y); | |
1358 | } | |
1359 | ||
1360 | wxCoord wxDCBase::LogicalToDeviceX(wxCoord x) const | |
1361 | { | |
1362 | return ((wxDC *)this)->XLOG2DEV(x); | |
1363 | } | |
1364 | ||
1365 | wxCoord wxDCBase::LogicalToDeviceY(wxCoord y) const | |
1366 | { | |
1367 | return ((wxDC *)this)->YLOG2DEV(y); | |
1368 | } | |
1369 | ||
1370 | wxCoord wxDCBase::LogicalToDeviceXRel(wxCoord x) const | |
1371 | { | |
1372 | return ((wxDC *)this)->XLOG2DEVREL(x); | |
1373 | } | |
1374 | ||
1375 | wxCoord wxDCBase::LogicalToDeviceYRel(wxCoord y) const | |
1376 | { | |
1377 | return ((wxDC *)this)->YLOG2DEVREL(y); | |
1378 | } | |
1379 | ||
1380 | ||
1381 | void wxDC::DoGetSize(int *w, int *h) const | |
1382 | { | |
b8c0528d VS |
1383 | if (w) *w = m_MGLDC->sizex()+1; |
1384 | if (h) *h = m_MGLDC->sizey()+1; | |
32b8ec41 VZ |
1385 | } |
1386 | ||
1387 | void wxDC::DoGetSizeMM(int *width, int *height) const | |
1388 | { | |
1389 | int w = 0; | |
1390 | int h = 0; | |
1391 | GetSize(&w, &h); | |
1392 | if ( width ) *width = int(double(w) / (m_userScaleX*m_mm_to_pix_x)); | |
1393 | if ( height ) *height = int(double(h) / (m_userScaleY*m_mm_to_pix_y)); | |
1394 | } | |
1395 | ||
1396 | wxSize wxDC::GetPPI() const | |
1397 | { | |
1398 | return wxSize(int(double(m_mm_to_pix_x) * inches2mm), | |
1399 | int(double(m_mm_to_pix_y) * inches2mm)); | |
1400 | } | |
1401 | ||
1402 | ||
1403 | // --------------------------------------------------------------------------- | |
1404 | // Blitting | |
1405 | // --------------------------------------------------------------------------- | |
1406 | ||
1407 | bool wxDC::DoBlit(wxCoord xdest, wxCoord ydest, | |
1408 | wxCoord width, wxCoord height, | |
1409 | wxDC *source, wxCoord xsrc, wxCoord ysrc, | |
0cbff120 JS |
1410 | int rop, bool useMask, |
1411 | wxCoord xsrcMask, wxCoord ysrcMask) | |
32b8ec41 VZ |
1412 | { |
1413 | wxCHECK_MSG( Ok(), FALSE, wxT("invalid dc") ); | |
1414 | wxCHECK_MSG( source, FALSE, wxT("invalid source dc") ); | |
1415 | ||
1416 | // transform the source DC coords to the device ones | |
1417 | xsrc = source->LogicalToDeviceX(xsrc); | |
1418 | ysrc = source->LogicalToDeviceY(ysrc); | |
1419 | ||
a4bbc9f7 | 1420 | /* FIXME_MGL: use the mask origin when drawing transparently */ |
0cbff120 JS |
1421 | if (xsrcMask == -1 && ysrcMask == -1) |
1422 | { | |
1423 | xsrcMask = xsrc; ysrcMask = ysrc; | |
1424 | } | |
1425 | else | |
1426 | { | |
1427 | xsrcMask = source->LogicalToDeviceX(xsrcMask); | |
1428 | ysrcMask = source->LogicalToDeviceY(ysrcMask); | |
1429 | } | |
1430 | ||
32b8ec41 VZ |
1431 | CalcBoundingBox(xdest, ydest); |
1432 | CalcBoundingBox(xdest + width, ydest + height); | |
1433 | ||
1434 | /* scale/translate size and position */ | |
1435 | wxCoord xx = XLOG2DEV(xdest); | |
1436 | wxCoord yy = YLOG2DEV(ydest); | |
1437 | wxCoord ww = XLOG2DEVREL(width); | |
1438 | wxCoord hh = YLOG2DEVREL(height); | |
1439 | ||
1440 | if ( source->m_isMemDC ) | |
1441 | { | |
1442 | wxMemoryDC *memDC = (wxMemoryDC*) source; | |
1443 | DoDrawSubBitmap(memDC->GetSelectedObject(), xsrc, ysrc, ww, hh, | |
1444 | xdest, ydest, rop, useMask); | |
1445 | } | |
1446 | else | |
1447 | { | |
1448 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 | |
1449 | m_MGLDC->bitBlt(*source->GetMGLDC(), | |
1450 | xsrc, ysrc, xsrc + ww, ysrc + hh, | |
1451 | xx, yy, LogicalFunctionToMGLRop(rop)); | |
1452 | } | |
1453 | ||
1454 | return TRUE; | |
1455 | } | |
1456 | ||
1457 | void wxDC::DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y, bool useMask) | |
1458 | { | |
1459 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
1460 | wxCHECK_RET( bmp.Ok(), wxT("invalid bitmap") ); | |
1461 | ||
1462 | wxCoord w = bmp.GetWidth(); | |
1463 | wxCoord h = bmp.GetHeight(); | |
1464 | ||
1465 | DoDrawSubBitmap(bmp, 0, 0, w, h, x, y, m_logicalFunction, useMask); | |
1466 | } | |
1467 | ||
1468 | void wxDC::DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y) | |
1469 | { | |
1470 | // VZ: egcs 1.0.3 refuses to compile this without cast, no idea why | |
1471 | DoDrawBitmap((const wxBitmap&)icon, x, y, (bool)TRUE); | |
1472 | } | |
1473 | ||
1474 | ||
1475 | static inline void DoBitBlt(const wxBitmap& src, MGLDevCtx *dst, | |
1476 | int sx, int sy, int sw, int sh, | |
1477 | int dx, int dy, int dw, int dh, | |
1478 | int rop, bool useStretching, bool putSection) | |
1479 | { | |
1480 | bitmap_t *bmp = src.GetMGLbitmap_t(); | |
1481 | if (!useStretching) | |
1482 | { | |
1483 | if (!putSection) | |
1484 | dst->putBitmap(dx, dy, bmp, rop); | |
1485 | else | |
1486 | dst->putBitmapSection(sx, sy, sx + sw, sy + sh, dx, dy, bmp, rop); | |
1487 | } | |
1488 | else | |
1489 | { | |
1490 | if (!putSection) | |
1491 | dst->stretchBitmap(dx, dy, dx + dw, dy + dh, bmp, rop); | |
1492 | else | |
1493 | dst->stretchBitmapSection(sx, sy, sx + sw, sy + sh, | |
1494 | dx, dy, dx + dw, dy + dh, bmp, rop); | |
1495 | } | |
1496 | } | |
1497 | ||
1498 | void wxDC::DoDrawSubBitmap(const wxBitmap &bmp, | |
1499 | wxCoord x, wxCoord y, wxCoord w, wxCoord h, | |
1500 | wxCoord destx, wxCoord desty, int rop, bool useMask) | |
1501 | { | |
1502 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
1503 | wxCHECK_RET( bmp.Ok(), wxT("invalid bitmap") ); | |
1504 | ||
1505 | CalcBoundingBox(x, y); | |
1506 | CalcBoundingBox(x + w, y + h); | |
1507 | ||
1508 | wxCoord dx = XLOG2DEV(destx); | |
1509 | wxCoord dy = YLOG2DEV(desty); | |
1510 | wxCoord dw = XLOG2DEVREL(w); | |
1511 | wxCoord dh = YLOG2DEVREL(h); | |
1512 | ||
1513 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 | |
1514 | ||
1515 | bool useStretching = ((w != dw) || (h != dh)); | |
1516 | bool putSection = (w != bmp.GetWidth() || h != bmp.GetHeight()); | |
1517 | MGL_writeModeType mglRop = (MGL_writeModeType)LogicalFunctionToMGLRop(rop); | |
1518 | ||
1519 | if ( bmp.GetDepth() == 1 ) | |
1520 | { | |
1521 | // Mono bitmaps are handled in special way -- all 1s are drawn in | |
1522 | // foreground colours, all 0s in background colour. | |
1523 | ||
1524 | ((wxBitmap&)bmp).SetMonoPalette(m_textForegroundColour, m_textBackgroundColour); | |
1525 | } | |
1526 | ||
1527 | if ( useMask && bmp.GetMask() ) | |
1528 | { | |
1529 | // Since MGL does not support masks directly (in MGL, mask is handled | |
1530 | // in same way as in wxImage, i.e. there is one "key" color), we | |
1531 | // simulate masked bitblt in 6 steps (same as in MSW): | |
1532 | // | |
1533 | // 1. Create a temporary bitmap and copy the destination area into it. | |
1534 | // 2. Copy the source area into the temporary bitmap using the | |
1535 | // specified logical function. | |
1536 | // 3. Set the masked area in the temporary bitmap to BLACK by ANDing | |
1537 | // the mask bitmap with the temp bitmap with the foreground colour | |
1538 | // set to WHITE and the bg colour set to BLACK. | |
1539 | // 4. Set the unmasked area in the destination area to BLACK by | |
1540 | // ANDing the mask bitmap with the destination area with the | |
1541 | // foreground colour set to BLACK and the background colour set | |
1542 | // to WHITE. | |
1543 | // 5. OR the temporary bitmap with the destination area. | |
1544 | // 6. Delete the temporary bitmap. | |
1545 | // | |
1546 | // This sequence of operations ensures that the source's transparent | |
1547 | // area need not be black, and logical functions are supported. | |
1548 | ||
1549 | wxBitmap *mask = bmp.GetMask()->GetBitmap(); | |
1550 | ||
1551 | MGLMemoryDC *temp; | |
1552 | ||
1553 | if ( GetDepth() <= 8 ) | |
1554 | { | |
1555 | temp = new MGLMemoryDC(dw, dh, GetDepth(), NULL); | |
1556 | wxDC tempdc; | |
1557 | tempdc.SetMGLDC(temp, FALSE); | |
1558 | tempdc.SetPalette(m_palette); | |
1559 | } | |
1560 | else | |
1561 | { | |
1562 | pixel_format_t pf; | |
1563 | m_MGLDC->getPixelFormat(pf); | |
1564 | temp = new MGLMemoryDC(dw, dh, GetDepth(), &pf); | |
1565 | } | |
1566 | ||
1567 | wxCHECK_RET( temp->isValid(), wxT("cannot create temporary dc") ); | |
1568 | ||
1569 | temp->bitBlt(*m_MGLDC, dx, dy, dx + dw, dy + dh, 0, 0, MGL_REPLACE_MODE); | |
1570 | ||
1571 | DoBitBlt(bmp, temp, x, y, w, h, 0, 0, dw, dh, mglRop, | |
1572 | useStretching, putSection); | |
1573 | ||
1574 | mask->SetMonoPalette(wxColour(0,0,0), wxColour(255,255,255)); | |
1575 | DoBitBlt(*mask, temp, x, y, w, h, 0, 0, dw, dh, MGL_R2_MASKSRC, | |
1576 | useStretching, putSection); | |
1577 | DoBitBlt(*mask, m_MGLDC, x, y, w, h, dx, dy, dw, dh, MGL_R2_MASKNOTSRC, | |
1578 | useStretching, putSection); | |
1579 | ||
1580 | m_MGLDC->bitBlt(*temp, 0, 0, dw, dh, dx, dy, MGL_OR_MODE); | |
1581 | ||
1582 | delete temp; | |
1583 | } | |
1584 | ||
1585 | else | |
1586 | { | |
1587 | DoBitBlt(bmp, m_MGLDC, x, y, w, h, dx, dy, dw, dh, mglRop, | |
1588 | useStretching, putSection); | |
1589 | } | |
1590 | } |