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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: dc.cpp | |
3 | // Purpose: wxDC class | |
4 | // Author: Vaclav Slavik | |
5 | // Created: 2001/03/09 | |
6 | // RCS-ID: $Id$ | |
7 | // Copyright: (c) 2001-2002 SciTech Software, Inc. (www.scitechsoft.com) | |
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 | #ifndef M_PI | |
51 | #define M_PI 3.14159265358979323846 | |
52 | #endif | |
53 | ||
54 | const double mm2inches = 0.0393700787402; | |
55 | const double inches2mm = 25.4; | |
56 | const double mm2twips = 56.6929133859; | |
57 | const double twips2mm = 0.0176388888889; | |
58 | const double mm2pt = 2.83464566929; | |
59 | const double pt2mm = 0.352777777778; | |
60 | const double RAD2DEG = 180.0 / M_PI; | |
61 | ||
62 | ||
63 | //----------------------------------------------------------------------------- | |
64 | // pens data: | |
65 | //----------------------------------------------------------------------------- | |
66 | ||
67 | const ushort STIPPLE_wxDOT = 0x5555/* - - - - - - - -*/; | |
68 | const ushort STIPPLE_wxLONG_DASH = 0xF0F0/* ---- ----*/; | |
69 | const ushort STIPPLE_wxSHORT_DASH = 0xCCCC/*-- -- -- -- */; | |
70 | const ushort STIPPLE_wxDOT_DASH = 0x3939/* --- - --- -*/; | |
71 | const ushort STIPPLE_wxSOLID = 0xFFFF/*----------------*/; | |
72 | ||
73 | #define PATTERN_ROW(b7,b6,b5,b4,b3,b2,b1,b0) \ | |
74 | ((b7 << 7) | (b6 << 6) | (b5 << 5) | (b4 << 4) | \ | |
75 | (b3 << 3) | (b2 << 2) | (b1 << 1) | b0) | |
76 | ||
77 | static pattern_t PATTERN_wxFDIAGONAL_HATCH = {{ | |
78 | PATTERN_ROW(1,0,0,0,0,0,0,0), | |
79 | PATTERN_ROW(0,1,0,0,0,0,0,0), | |
80 | PATTERN_ROW(0,0,1,0,0,0,0,0), | |
81 | PATTERN_ROW(0,0,0,1,0,0,0,0), | |
82 | PATTERN_ROW(0,0,0,0,1,0,0,0), | |
83 | PATTERN_ROW(0,0,0,0,0,1,0,0), | |
84 | PATTERN_ROW(0,0,0,0,0,0,1,0), | |
85 | PATTERN_ROW(0,0,0,0,0,0,0,1), | |
86 | }}; | |
87 | ||
88 | static pattern_t PATTERN_wxCROSSDIAG_HATCH = {{ | |
89 | PATTERN_ROW(1,0,0,0,0,0,0,1), | |
90 | PATTERN_ROW(0,1,0,0,0,0,1,0), | |
91 | PATTERN_ROW(0,0,1,0,0,1,0,0), | |
92 | PATTERN_ROW(0,0,0,1,1,0,0,0), | |
93 | PATTERN_ROW(0,0,0,1,1,0,0,0), | |
94 | PATTERN_ROW(0,0,1,0,0,1,0,0), | |
95 | PATTERN_ROW(0,1,0,0,0,0,1,0), | |
96 | PATTERN_ROW(1,0,0,0,0,0,0,1), | |
97 | }}; | |
98 | ||
99 | static pattern_t PATTERN_wxBDIAGONAL_HATCH = {{ | |
100 | PATTERN_ROW(0,0,0,0,0,0,0,1), | |
101 | PATTERN_ROW(0,0,0,0,0,0,1,0), | |
102 | PATTERN_ROW(0,0,0,0,0,1,0,0), | |
103 | PATTERN_ROW(0,0,0,0,1,0,0,0), | |
104 | PATTERN_ROW(0,0,0,1,0,0,0,0), | |
105 | PATTERN_ROW(0,0,1,0,0,0,0,0), | |
106 | PATTERN_ROW(0,1,0,0,0,0,0,0), | |
107 | PATTERN_ROW(1,0,0,0,0,0,0,0), | |
108 | }}; | |
109 | ||
110 | static pattern_t PATTERN_wxCROSS_HATCH = {{ | |
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(1,1,1,1,1,1,1,1), | |
115 | PATTERN_ROW(0,0,0,1,0,0,0,0), | |
116 | PATTERN_ROW(0,0,0,1,0,0,0,0), | |
117 | PATTERN_ROW(0,0,0,1,0,0,0,0), | |
118 | PATTERN_ROW(0,0,0,1,0,0,0,0), | |
119 | }}; | |
120 | ||
121 | static pattern_t PATTERN_wxHORIZONTAL_HATCH = {{ | |
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(1,1,1,1,1,1,1,1), | |
126 | PATTERN_ROW(0,0,0,0,0,0,0,0), | |
127 | PATTERN_ROW(0,0,0,0,0,0,0,0), | |
128 | PATTERN_ROW(0,0,0,0,0,0,0,0), | |
129 | PATTERN_ROW(0,0,0,0,0,0,0,0), | |
130 | }}; | |
131 | ||
132 | static pattern_t PATTERN_wxVERTICAL_HATCH = {{ | |
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 | PATTERN_ROW(0,0,0,1,0,0,0,0), | |
138 | PATTERN_ROW(0,0,0,1,0,0,0,0), | |
139 | PATTERN_ROW(0,0,0,1,0,0,0,0), | |
140 | PATTERN_ROW(0,0,0,1,0,0,0,0), | |
141 | }}; | |
142 | ||
143 | #undef PATTERN_ROW | |
144 | ||
145 | //----------------------------------------------------------------------------- | |
146 | // wxDC | |
147 | //----------------------------------------------------------------------------- | |
148 | ||
149 | IMPLEMENT_ABSTRACT_CLASS(wxDC, wxDCBase) | |
150 | ||
151 | // Default constructor | |
152 | wxDC::wxDC() | |
153 | { | |
154 | m_isMemDC = FALSE; | |
155 | m_MGLDC = NULL; | |
156 | m_OwnsMGLDC = FALSE; | |
157 | m_ok = FALSE; // must call SetMGLDevCtx() before using it | |
158 | ||
159 | m_mm_to_pix_x = (double)wxGetDisplaySize().GetWidth() / | |
160 | (double)wxGetDisplaySizeMM().GetWidth(); | |
161 | m_mm_to_pix_y = (double)wxGetDisplaySize().GetHeight() / | |
162 | (double)wxGetDisplaySizeMM().GetHeight(); | |
163 | ||
164 | m_pen = *wxBLACK_PEN; | |
165 | m_font = *wxNORMAL_FONT; | |
166 | m_brush = *wxWHITE_BRUSH; | |
167 | m_penOfsX = m_penOfsY = 0; | |
168 | ||
169 | m_penSelected = m_brushSelected = FALSE; | |
170 | m_downloadedPatterns[0] = m_downloadedPatterns[1] = FALSE; | |
171 | ||
172 | m_mglFont = NULL; | |
173 | } | |
174 | ||
175 | ||
176 | wxDC::~wxDC() | |
177 | { | |
178 | if (m_OwnsMGLDC) | |
179 | delete m_MGLDC; | |
180 | } | |
181 | ||
182 | void wxDC::SetMGLDC(MGLDevCtx *mgldc, bool OwnsMGLDC) | |
183 | { | |
184 | if ( m_OwnsMGLDC && m_MGLDC ) | |
185 | delete m_MGLDC; | |
186 | m_MGLDC = mgldc; | |
187 | m_OwnsMGLDC = OwnsMGLDC; | |
188 | m_ok = TRUE; | |
189 | ||
190 | if ( !m_globalClippingRegion.IsNull() ) | |
191 | SetClippingRegion(m_globalClippingRegion); | |
192 | ||
193 | InitializeMGLDC(); | |
194 | } | |
195 | ||
196 | void wxDC::InitializeMGLDC() | |
197 | { | |
198 | if ( GetDepth() > 8 ) | |
199 | { | |
200 | wxCurrentDCSwitcher switcher(m_MGLDC); // will go away with MGL6 | |
201 | m_MGLDC->setFontBlendMode(MGL_AA_RGBBLEND); | |
202 | } | |
203 | } | |
204 | ||
205 | ||
206 | // --------------------------------------------------------------------------- | |
207 | // clipping | |
208 | // --------------------------------------------------------------------------- | |
209 | ||
210 | ||
211 | #define DO_SET_CLIPPING_BOX(rg) \ | |
212 | { \ | |
213 | wxRect rect = rg.GetBox(); \ | |
214 | m_clipX1 = (wxCoord) XDEV2LOG(rect.GetLeft()); \ | |
215 | m_clipY1 = (wxCoord) YDEV2LOG(rect.GetTop()); \ | |
216 | m_clipX2 = (wxCoord) XDEV2LOG(rect.GetRight()); \ | |
217 | m_clipY2 = (wxCoord) YDEV2LOG(rect.GetBottom()); \ | |
218 | } | |
219 | ||
220 | void wxDC::DoSetClippingRegion(wxCoord cx, wxCoord cy, wxCoord cw, wxCoord ch) | |
221 | { | |
222 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
223 | ||
224 | wxRect rect(XLOG2DEV(cx), YLOG2DEV(cy), XLOG2DEVREL(cw), YLOG2DEVREL(ch)); | |
225 | ||
226 | if ( !m_currentClippingRegion.IsNull() ) | |
227 | m_currentClippingRegion.Intersect(rect); | |
228 | else | |
229 | m_currentClippingRegion.Union(rect); | |
230 | ||
231 | m_MGLDC->setClipRegion(m_currentClippingRegion.GetMGLRegion()); | |
232 | ||
233 | m_clipping = TRUE; | |
234 | DO_SET_CLIPPING_BOX(m_currentClippingRegion) | |
235 | } | |
236 | ||
237 | void wxDC::DoSetClippingRegionAsRegion(const wxRegion& region) | |
238 | { | |
239 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
240 | ||
241 | if ( region.IsEmpty() ) | |
242 | { | |
243 | DestroyClippingRegion(); | |
244 | return; | |
245 | } | |
246 | ||
247 | wxRegion rg(region); | |
248 | ||
249 | // check if the DC is scaled or moved, and if yes, then | |
250 | // convert rg to device coordinates: | |
251 | if ( m_deviceOriginX != 0 || m_deviceOriginY != 0 || | |
252 | m_logicalOriginX != 0 || m_logicalOriginY != 0 || | |
253 | XLOG2DEVREL(500) != 500 || YLOG2DEVREL(500) != 500 ) | |
254 | { | |
255 | region_t *mrg = rg.GetMGLRegion().rgnPointer(); | |
256 | span_t *s; | |
257 | segment_t *p; | |
258 | for (s = mrg->spans; s; s = s->next) | |
259 | { | |
260 | s->y = YLOG2DEV(s->y); | |
261 | for (p = s->seg; p; p = p->next) | |
262 | p->x = XLOG2DEV(p->x); | |
263 | } | |
264 | } | |
265 | ||
266 | if ( !m_currentClippingRegion.IsNull() ) | |
267 | m_currentClippingRegion.Intersect(rg); | |
268 | else | |
269 | m_currentClippingRegion.Union(rg); | |
270 | ||
271 | m_MGLDC->setClipRegion(m_currentClippingRegion.GetMGLRegion()); | |
272 | ||
273 | m_clipping = TRUE; | |
274 | DO_SET_CLIPPING_BOX(m_currentClippingRegion) | |
275 | } | |
276 | ||
277 | void wxDC::DestroyClippingRegion() | |
278 | { | |
279 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
280 | ||
281 | if ( !m_globalClippingRegion.IsNull() ) | |
282 | { | |
283 | m_MGLDC->setClipRegion(m_globalClippingRegion.GetMGLRegion()); | |
284 | m_currentClippingRegion = m_globalClippingRegion; | |
285 | m_clipping = TRUE; | |
286 | } | |
287 | else | |
288 | { | |
289 | m_MGLDC->setClipRect(MGLRect(0, 0, m_MGLDC->sizex()+1, m_MGLDC->sizey()+1)); | |
290 | m_clipping = FALSE; | |
291 | m_currentClippingRegion.Clear(); | |
292 | } | |
293 | } | |
294 | ||
295 | // --------------------------------------------------------------------------- | |
296 | // query capabilities | |
297 | // --------------------------------------------------------------------------- | |
298 | ||
299 | bool wxDC::CanDrawBitmap() const | |
300 | { | |
301 | return TRUE; | |
302 | } | |
303 | ||
304 | bool wxDC::CanGetTextExtent() const | |
305 | { | |
306 | return TRUE; | |
307 | } | |
308 | ||
309 | int wxDC::GetDepth() const | |
310 | { | |
311 | return m_MGLDC->getBitsPerPixel(); | |
312 | } | |
313 | ||
314 | // --------------------------------------------------------------------------- | |
315 | // drawing | |
316 | // --------------------------------------------------------------------------- | |
317 | ||
318 | void wxDC::Clear() | |
319 | { | |
320 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
321 | ||
322 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 | |
323 | if ( m_backgroundBrush.GetStyle() != wxTRANSPARENT ) | |
324 | { | |
325 | int w, h; | |
326 | wxBrush oldb = m_brush; | |
327 | SetBrush(m_backgroundBrush); | |
328 | SelectBrush(); | |
329 | GetSize(&w, &h); | |
330 | m_MGLDC->fillRect(0, 0, w, h); | |
331 | SetBrush(oldb); | |
332 | } | |
333 | } | |
334 | ||
335 | extern bool wxDoFloodFill(wxDC *dc, wxCoord x, wxCoord y, | |
336 | const wxColour & col, int style); | |
337 | ||
338 | bool wxDC::DoFloodFill(wxCoord x, wxCoord y, | |
339 | const wxColour& col, int style) | |
340 | { | |
341 | return wxDoFloodFill(this, x, y, col, style); | |
342 | } | |
343 | ||
344 | bool wxDC::DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const | |
345 | { | |
346 | wxCHECK_MSG( col, FALSE, _T("NULL colour parameter in wxDC::GetPixel")); | |
347 | ||
348 | uchar r, g, b; | |
349 | m_MGLDC->unpackColorFast(m_MGLDC->getPixel(XLOG2DEV(x), YLOG2DEV(y)), | |
350 | r, g, b); | |
351 | col->Set(r, g, b); | |
352 | return TRUE; | |
353 | } | |
354 | ||
355 | void wxDC::DoCrossHair(wxCoord x, wxCoord y) | |
356 | { | |
357 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
358 | ||
359 | if ( m_pen.GetStyle() != wxTRANSPARENT ) | |
360 | { | |
361 | int w = 0; | |
362 | int h = 0; | |
363 | GetSize(&w, &h); | |
364 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 | |
365 | if ( !m_penSelected ) | |
366 | SelectPen(); | |
367 | wxCoord xx = XLOG2DEV(x); | |
368 | wxCoord yy = YLOG2DEV(y); | |
369 | m_MGLDC->line(m_penOfsX, yy + m_penOfsY, w-1 + m_penOfsX, yy + m_penOfsY); | |
370 | m_MGLDC->line(xx + m_penOfsX, m_penOfsY, x + m_penOfsX, h-1 + m_penOfsY); | |
371 | CalcBoundingBox(0, 0); | |
372 | CalcBoundingBox(w, h); | |
373 | } | |
374 | } | |
375 | ||
376 | void wxDC::DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2) | |
377 | { | |
378 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
379 | ||
380 | if ( m_pen.GetStyle() != wxTRANSPARENT ) | |
381 | { | |
382 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 | |
383 | if ( !m_penSelected ) | |
384 | SelectPen(); | |
385 | m_MGLDC->lineExt(XLOG2DEV(x1) + m_penOfsX, YLOG2DEV(y1) + m_penOfsY, | |
386 | XLOG2DEV(x2) + m_penOfsX, YLOG2DEV(y2) + m_penOfsY,FALSE); | |
387 | CalcBoundingBox(x1, y1); | |
388 | CalcBoundingBox(x2, y2); | |
389 | } | |
390 | } | |
391 | ||
392 | // Draws an arc of a circle, centred on (xc, yc), with starting point (x1, y1) | |
393 | // and ending at (x2, y2) | |
394 | void wxDC::DoDrawArc(wxCoord x1, wxCoord y1, | |
395 | wxCoord x2, wxCoord y2, | |
396 | wxCoord xc, wxCoord yc) | |
397 | { | |
398 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
399 | ||
400 | wxCoord xx1 = XLOG2DEV(x1); | |
401 | wxCoord yy1 = YLOG2DEV(y1); | |
402 | wxCoord xx2 = XLOG2DEV(x2); | |
403 | wxCoord yy2 = YLOG2DEV(y2); | |
404 | wxCoord xxc = XLOG2DEV(xc); | |
405 | wxCoord yyc = YLOG2DEV(yc); | |
406 | double dx = xx1 - xxc; | |
407 | double dy = yy1 - yyc; | |
408 | double radius = sqrt((double)(dx*dx+dy*dy)); | |
409 | wxCoord r = (wxCoord)radius; | |
410 | double radius1, radius2; | |
411 | ||
412 | ||
413 | if (xx1 == xx2 && yy1 == yy2) | |
414 | { | |
415 | radius1 = 0.0; | |
416 | radius2 = 360.0; | |
417 | } | |
418 | else if (radius == 0.0) | |
419 | { | |
420 | radius1 = radius2 = 0.0; | |
421 | } | |
422 | else | |
423 | { | |
424 | radius1 = (xx1 - xxc == 0) ? | |
425 | (yy1 - yyc < 0) ? 90.0 : -90.0 : | |
426 | -atan2(double(yy1-yyc), double(xx1-xxc)) * RAD2DEG; | |
427 | radius2 = (xx2 - xxc == 0) ? | |
428 | (yy2 - yyc < 0) ? 90.0 : -90.0 : | |
429 | -atan2(double(yy2-yyc), double(xx2-xxc)) * RAD2DEG; | |
430 | } | |
431 | wxCoord alpha1 = wxCoord(radius1); | |
432 | wxCoord alpha2 = alpha1 + wxCoord(radius2 - radius1); | |
433 | while (alpha2 <= 0) alpha2 += 360; | |
434 | while (alpha1 > 360) alpha1 -= 360; | |
435 | ||
436 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 | |
437 | if ( m_brush.GetStyle() != wxTRANSPARENT ) | |
438 | { | |
439 | if ( !m_brushSelected ) | |
440 | SelectBrush(); | |
441 | m_MGLDC->fillEllipseArc(xxc, yyc, r, r, alpha1, alpha2); | |
442 | } | |
443 | ||
444 | if ( m_pen.GetStyle() != wxTRANSPARENT ) | |
445 | { | |
446 | if ( !m_penSelected ) | |
447 | SelectPen(); | |
448 | m_MGLDC->ellipseArc(xxc + m_penOfsX, yyc + m_penOfsY, r, r, alpha1, alpha2); | |
449 | } | |
450 | ||
451 | CalcBoundingBox(xc - r, yc - r); | |
452 | CalcBoundingBox(xc + r, yc + r); | |
453 | } | |
454 | ||
455 | void wxDC::DoDrawPoint(wxCoord x, wxCoord y) | |
456 | { | |
457 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
458 | ||
459 | if ( m_pen.GetStyle() != wxTRANSPARENT ) | |
460 | { | |
461 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 | |
462 | if ( !m_penSelected ) | |
463 | SelectPen(); | |
464 | m_MGLDC->pixel(XLOG2DEV(x), YLOG2DEV(y)); | |
465 | CalcBoundingBox(x, y); | |
466 | } | |
467 | } | |
468 | ||
469 | void wxDC::DoDrawPolygon(int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset,int fillStyle) | |
470 | { | |
471 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
472 | ||
473 | wxCoord xxoffset = XLOG2DEVREL(xoffset), | |
474 | yyoffset = YLOG2DEVREL(yoffset); | |
475 | MGLPoint *cpoints = new MGLPoint[n+1]; | |
476 | for (int i = 0; i < n; i++) | |
477 | { | |
478 | CalcBoundingBox(points[i].x + xoffset, points[i].y + yoffset); | |
479 | cpoints[i].x = (int)(XLOG2DEV(points[i].x)); | |
480 | cpoints[i].y = (int)(YLOG2DEV(points[i].y)); | |
481 | } | |
482 | cpoints[n] = cpoints[0]; | |
483 | ||
484 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 | |
485 | if ( m_brush.GetStyle() != wxTRANSPARENT ) | |
486 | { | |
487 | if ( !m_brushSelected ) | |
488 | SelectBrush(); | |
489 | m_MGLDC->fillPolygon(n, cpoints, xxoffset, yyoffset); | |
490 | } | |
491 | ||
492 | if ( m_pen.GetStyle() != wxTRANSPARENT ) | |
493 | { | |
494 | if ( !m_penSelected ) | |
495 | SelectPen(); | |
496 | if (m_penOfsX != 0 || m_penOfsY != 0) | |
497 | { | |
498 | for (int i = 0; i <= n; i++) | |
499 | { | |
500 | cpoints[i].x += m_penOfsX; | |
501 | cpoints[i].y += m_penOfsY; | |
502 | } | |
503 | } | |
504 | m_MGLDC->polyLine(n+1, cpoints); | |
505 | } | |
506 | ||
507 | delete[] cpoints; | |
508 | } | |
509 | ||
510 | void wxDC::DoDrawLines(int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset) | |
511 | { | |
512 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
513 | ||
514 | if ( m_pen.GetStyle() != wxTRANSPARENT ) | |
515 | { | |
516 | MGLPoint *cpoints = new MGLPoint[n]; | |
517 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 | |
518 | if ( !m_penSelected ) | |
519 | SelectPen(); | |
520 | for (int i = 0; i < n; i++) | |
521 | { | |
522 | CalcBoundingBox(points[i].x + xoffset, points[i].y + yoffset); | |
523 | cpoints[i].x = (int)(XLOG2DEV(points[i].x + xoffset) /*+ m_penOfsX*/); | |
524 | cpoints[i].y = (int)(YLOG2DEV(points[i].y + yoffset) /*+ m_penOfsY*/); | |
525 | } | |
526 | m_MGLDC->polyLine(n, cpoints); | |
527 | delete[] cpoints; | |
528 | } | |
529 | } | |
530 | ||
531 | void wxDC::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height) | |
532 | { | |
533 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
534 | ||
535 | wxCoord xx = XLOG2DEV(x); | |
536 | wxCoord yy = YLOG2DEV(y); | |
537 | wxCoord ww = m_signX * XLOG2DEVREL(width); | |
538 | wxCoord hh = m_signY * YLOG2DEVREL(height); | |
539 | ||
540 | if ( ww == 0 || hh == 0 ) return; | |
541 | ||
542 | if ( ww < 0 ) | |
543 | { | |
544 | ww = -ww; | |
545 | xx = xx - ww; | |
546 | } | |
547 | if ( hh < 0 ) | |
548 | { | |
549 | hh = -hh; | |
550 | yy = yy - hh; | |
551 | } | |
552 | ||
553 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 | |
554 | if ( m_brush.GetStyle() != wxTRANSPARENT ) | |
555 | { | |
556 | if ( !m_brushSelected ) | |
557 | SelectBrush(); | |
558 | m_MGLDC->fillRect(xx, yy, xx + ww, yy + hh); | |
559 | } | |
560 | ||
561 | if ( m_pen.GetStyle() != wxTRANSPARENT ) | |
562 | { | |
563 | if ( !m_penSelected ) | |
564 | SelectPen(); | |
565 | ||
566 | m_MGLDC->rect(xx + m_penOfsX, yy + m_penOfsY, | |
567 | xx + ww + m_penOfsX, yy + hh + m_penOfsY); | |
568 | } | |
569 | ||
570 | CalcBoundingBox(x, y); | |
571 | CalcBoundingBox(x + width, y + height); | |
572 | } | |
573 | ||
574 | void wxDC::DoDrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius) | |
575 | { | |
576 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
577 | ||
578 | if ( radius < 0.0 ) | |
579 | radius = -radius * ((width < height) ? width : height); | |
580 | ||
581 | wxCoord xx = XLOG2DEV(x); | |
582 | wxCoord yy = YLOG2DEV(y); | |
583 | wxCoord ww = m_signX * XLOG2DEVREL(width); | |
584 | wxCoord hh = m_signY * YLOG2DEVREL(height); | |
585 | wxCoord rr = XLOG2DEVREL((wxCoord)radius); | |
586 | ||
587 | // CMB: handle -ve width and/or height | |
588 | if ( ww < 0 ) | |
589 | { | |
590 | ww = -ww; | |
591 | xx = xx - ww; | |
592 | } | |
593 | if ( hh < 0 ) | |
594 | { | |
595 | hh = -hh; | |
596 | yy = yy - hh; | |
597 | } | |
598 | ||
599 | // CMB: if radius is zero use DrawRectangle() instead to avoid | |
600 | // X drawing errors with small radii | |
601 | if ( rr == 0 ) | |
602 | { | |
603 | DrawRectangle(x, y, width, height); | |
604 | return; | |
605 | } | |
606 | ||
607 | // CMB: draw nothing if transformed w or h is 0 | |
608 | if ( ww == 0 || hh == 0 ) return; | |
609 | ||
610 | // CMB: ensure dd is not larger than rectangle otherwise we | |
611 | // get an hour glass shape | |
612 | wxCoord dd = 2 * rr; | |
613 | if ( dd > ww ) dd = ww; | |
614 | if ( dd > hh ) dd = hh; | |
615 | rr = dd / 2; | |
616 | ||
617 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 | |
618 | if ( m_brush.GetStyle() != wxTRANSPARENT ) | |
619 | { | |
620 | if (!m_brushSelected) | |
621 | SelectBrush(); | |
622 | m_MGLDC->fillRect(xx+rr, yy, xx+ww-rr, yy+hh); | |
623 | m_MGLDC->fillRect(xx, yy+rr, xx+ww, yy+hh-rr); | |
624 | m_MGLDC->fillEllipseArc(xx+rr, yy+rr, rr, rr, 90, 180); | |
625 | m_MGLDC->fillEllipseArc(xx+ww-rr, yy+rr, rr, rr, 0, 90); | |
626 | m_MGLDC->fillEllipseArc(xx+rr, yy+hh-rr, rr, rr, 180, 270); | |
627 | m_MGLDC->fillEllipseArc(xx+ww-rr, yy+hh-rr, rr, rr, 270, 0); | |
628 | } | |
629 | ||
630 | if ( m_pen.GetStyle() != wxTRANSPARENT ) | |
631 | { | |
632 | if ( !m_penSelected ) | |
633 | SelectPen(); | |
634 | xx += m_penOfsX; | |
635 | yy += m_penOfsY; | |
636 | m_MGLDC->line(xx+rr+1, yy, xx+ww-rr, yy); | |
637 | m_MGLDC->ellipseArc(xx+ww-rr, yy+rr, rr, rr, 0, 90); | |
638 | m_MGLDC->line(xx+ww, yy+rr+1, xx+ww, yy+hh-rr); | |
639 | m_MGLDC->ellipseArc(xx+ww-rr, yy+hh-rr, rr, rr, 270, 0); | |
640 | m_MGLDC->line(xx+ww-rr, yy+hh, xx+rr+1, yy+hh); | |
641 | m_MGLDC->ellipseArc(xx+rr, yy+hh-rr, rr, rr, 180, 270); | |
642 | m_MGLDC->line(xx, yy+hh-rr, xx, yy+rr+1); | |
643 | m_MGLDC->ellipseArc(xx+rr, yy+rr, rr, rr, 90, 180); | |
644 | } | |
645 | ||
646 | CalcBoundingBox(x, y); | |
647 | CalcBoundingBox(x + width, y + height); | |
648 | } | |
649 | ||
650 | void wxDC::DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height) | |
651 | { | |
652 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
653 | ||
654 | wxCoord x2 = (x+width); | |
655 | wxCoord y2 = (y+height); | |
656 | ||
657 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 | |
658 | if ( m_brush.GetStyle() != wxTRANSPARENT ) | |
659 | { | |
660 | if ( !m_brushSelected ) | |
661 | SelectBrush(); | |
662 | MGLRect rect(XLOG2DEV(x), YLOG2DEV(y), XLOG2DEV(x2), YLOG2DEV(y2)); | |
663 | m_MGLDC->fillEllipse(rect); | |
664 | } | |
665 | ||
666 | if ( m_pen.GetStyle() != wxTRANSPARENT ) | |
667 | { | |
668 | if ( !m_penSelected ) | |
669 | SelectPen(); | |
670 | MGLRect rect(XLOG2DEV(x) + m_penOfsX, YLOG2DEV(y) + m_penOfsY, | |
671 | XLOG2DEV(x2) + m_penOfsX, YLOG2DEV(y2) + m_penOfsY); | |
672 | m_MGLDC->ellipse(rect); | |
673 | } | |
674 | ||
675 | CalcBoundingBox(x, y); | |
676 | CalcBoundingBox(x2, y2); | |
677 | } | |
678 | ||
679 | void wxDC::DoDrawEllipticArc(wxCoord x,wxCoord y,wxCoord w,wxCoord h,double sa,double ea) | |
680 | { | |
681 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
682 | ||
683 | wxCoord x2 = (x+w); | |
684 | wxCoord y2 = (y+h); | |
685 | ||
686 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 | |
687 | if ( m_brush.GetStyle() != wxTRANSPARENT ) | |
688 | { | |
689 | if (!m_brushSelected) SelectBrush(); | |
690 | MGLRect rect(XLOG2DEV(x), YLOG2DEV(y), XLOG2DEV(x2), YLOG2DEV(y2)); | |
691 | m_MGLDC->fillEllipseArc(rect, (int)sa, (int)ea); | |
692 | } | |
693 | ||
694 | if ( m_pen.GetStyle() != wxTRANSPARENT ) | |
695 | { | |
696 | if ( !m_penSelected ) | |
697 | SelectPen(); | |
698 | MGLRect rect(XLOG2DEV(x) + m_penOfsX, YLOG2DEV(y) + m_penOfsY, | |
699 | XLOG2DEV(x2) + m_penOfsX, YLOG2DEV(y2) + m_penOfsY); | |
700 | m_MGLDC->ellipseArc(rect, (int)sa, (int)ea); | |
701 | } | |
702 | ||
703 | CalcBoundingBox(x, y); | |
704 | CalcBoundingBox(x2, y2); | |
705 | } | |
706 | ||
707 | void wxDC::DoDrawText(const wxString& text, wxCoord x, wxCoord y) | |
708 | { | |
709 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 | |
710 | DrawAnyText(text, x, y); | |
711 | ||
712 | // update the bounding box | |
713 | wxCoord w, h; | |
714 | CalcBoundingBox(x, y); | |
715 | GetTextExtent(text, &w, &h); | |
716 | CalcBoundingBox(x + w, y + h); | |
717 | } | |
718 | ||
719 | bool wxDC::SelectMGLFont() | |
720 | { | |
721 | if ( m_mglFont == NULL ) | |
722 | { | |
723 | float scale = m_scaleY; | |
724 | bool antialiased = (GetDepth() > 8); | |
725 | ||
726 | m_mglFont = m_font.GetMGLfont_t(scale, antialiased); | |
727 | wxCHECK_MSG( m_mglFont, FALSE, wxT("invalid font") ); | |
728 | ||
729 | m_MGLDC->useFont(m_mglFont); | |
730 | wxLogTrace("mgl_font", "useFont(%p)", m_mglFont); | |
731 | ||
732 | #if !wxUSE_UNICODE | |
733 | wxNativeEncodingInfo nativeEnc; | |
734 | wxFontEncoding encoding = m_font.GetEncoding(); | |
735 | if ( !wxGetNativeFontEncoding(encoding, &nativeEnc) || | |
736 | !wxTestFontEncoding(nativeEnc) ) | |
737 | { | |
738 | #if wxUSE_FONTMAP | |
739 | if ( !wxFontMapper::Get()->GetAltForEncoding(encoding, &nativeEnc) ) | |
740 | #endif | |
741 | { | |
742 | nativeEnc.mglEncoding = MGL_ENCODING_ASCII; | |
743 | } | |
744 | } | |
745 | m_MGLDC->setTextEncoding(nativeEnc.mglEncoding); | |
746 | #endif | |
747 | } | |
748 | return TRUE; | |
749 | } | |
750 | ||
751 | void wxDC::DrawAnyText(const wxString& text, wxCoord x, wxCoord y) | |
752 | { | |
753 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
754 | ||
755 | SelectMGLFont(); | |
756 | ||
757 | // Render the text: | |
758 | wxCoord xx = XLOG2DEV(x); | |
759 | wxCoord yy = YLOG2DEV(y); | |
760 | ||
761 | m_MGLDC->setLineStyle(MGL_LINE_STIPPLE); | |
762 | m_MGLDC->setLineStipple(0xFFFF); | |
763 | m_MGLDC->setPenSize(1, 1); | |
764 | m_MGLDC->setPenStyle(MGL_BITMAP_SOLID); | |
765 | ||
766 | #if wxUSE_UNICODE | |
767 | const wchar_t *c_text = text.c_str(); | |
768 | #else | |
769 | const char *c_text = text.c_str(); | |
770 | #endif | |
771 | ||
772 | #if 1 | |
773 | // FIXME_MGL - this is a temporary hack in absence of proper | |
774 | // implementation of solid text background in MGL. Once | |
775 | // the bug in MGL is fixed, this code should be nuked | |
776 | // immediately. Note that the code is not 100% correct; | |
777 | // it only works with wxCOPY logical function | |
778 | if ( m_backgroundMode == wxSOLID ) | |
779 | { | |
780 | int w = m_MGLDC->textWidth(c_text); | |
781 | int h = m_MGLDC->textHeight(); | |
782 | m_MGLDC->setColor(m_MGLDC->packColorFast(m_textBackgroundColour.Red(), | |
783 | m_textBackgroundColour.Green(), m_textBackgroundColour.Blue())); | |
784 | m_MGLDC->fillRect(xx, yy, xx+w, yy+h); | |
785 | } | |
786 | #endif | |
787 | ||
788 | m_MGLDC->setColor(m_MGLDC->packColorFast(m_textForegroundColour.Red(), | |
789 | m_textForegroundColour.Green(), m_textForegroundColour.Blue())); | |
790 | m_MGLDC->setBackColor(m_MGLDC->packColorFast(m_textBackgroundColour.Red(), | |
791 | m_textBackgroundColour.Green(), m_textBackgroundColour.Blue())); | |
792 | ||
793 | m_MGLDC->drawStr(xx, yy, c_text); | |
794 | ||
795 | // Render underline: | |
796 | if ( m_font.GetUnderlined() ) | |
797 | { | |
798 | int x1 = xx, y1 = yy; | |
799 | int x2 = 0 , y2 = 0; | |
800 | int w = m_MGLDC->textWidth(c_text); | |
801 | m_MGLDC->underScoreLocation(x1, y1, c_text); | |
802 | switch (m_MGLDC->getTextDirection()) | |
803 | { | |
804 | case MGL_RIGHT_DIR: x2 = x1 + w, y2 = y1; break; | |
805 | case MGL_LEFT_DIR: x2 = x1 - w, y2 = y1; break; | |
806 | case MGL_UP_DIR: x2 = x1, y2 = y1 - w; break; | |
807 | case MGL_DOWN_DIR: x2 = x1, y2 = y1 + w; break; | |
808 | } | |
809 | m_MGLDC->line(x1, y1, x2, y2); | |
810 | } | |
811 | ||
812 | m_penSelected = m_brushSelected = FALSE; | |
813 | } | |
814 | ||
815 | void wxDC::DoDrawRotatedText(const wxString& text, | |
816 | wxCoord x, wxCoord y, | |
817 | double angle) | |
818 | { | |
819 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 | |
820 | ||
821 | if ( angle == 0 ) | |
822 | { | |
823 | DoDrawText(text, x, y); | |
824 | return; | |
825 | } | |
826 | else if ( angle == 90.0 ) | |
827 | m_MGLDC->setTextDirection(MGL_UP_DIR); | |
828 | else if ( angle == 180.0 ) | |
829 | m_MGLDC->setTextDirection(MGL_LEFT_DIR); | |
830 | else if ( angle == 270.0 ) | |
831 | m_MGLDC->setTextDirection(MGL_DOWN_DIR); | |
832 | else | |
833 | { | |
834 | // FIXME_MGL -- implement once MGL supports it | |
835 | wxFAIL_MSG(wxT("wxMGL only supports rotated text with angle 0,90,180 or 270")); | |
836 | return; | |
837 | } | |
838 | ||
839 | DrawAnyText(text, x, y); | |
840 | ||
841 | // Restore default: | |
842 | m_MGLDC->setTextDirection(MGL_RIGHT_DIR); | |
843 | } | |
844 | ||
845 | // --------------------------------------------------------------------------- | |
846 | // set GDI objects | |
847 | // --------------------------------------------------------------------------- | |
848 | ||
849 | void wxDC::SelectMGLStipplePen(int style) | |
850 | { | |
851 | ushort stipple; | |
852 | ||
853 | switch (style) | |
854 | { | |
855 | case wxDOT: stipple = STIPPLE_wxDOT; break; | |
856 | case wxLONG_DASH: stipple = STIPPLE_wxLONG_DASH; break; | |
857 | case wxSHORT_DASH: stipple = STIPPLE_wxSHORT_DASH; break; | |
858 | case wxDOT_DASH: stipple = STIPPLE_wxDOT_DASH; break; | |
859 | default: stipple = STIPPLE_wxSOLID; break; | |
860 | } | |
861 | ||
862 | m_MGLDC->setLineStyle(MGL_LINE_STIPPLE); | |
863 | m_MGLDC->setLineStipple(stipple); | |
864 | m_MGLDC->setPenSize(1, 1); | |
865 | m_MGLDC->setPenStyle(MGL_BITMAP_SOLID); | |
866 | m_penOfsY = m_penOfsX = 0; | |
867 | } | |
868 | ||
869 | // Accepted valus of SelectMGLFatPen's 2nd argument | |
870 | enum { | |
871 | wxMGL_SELECT_FROM_PEN, | |
872 | wxMGL_SELECT_FROM_BRUSH | |
873 | }; | |
874 | ||
875 | void wxDC::SelectMGLFatPen(int style, int flag) | |
876 | { | |
877 | MGL_penStyleType penstyle; | |
878 | const pattern_t *pattern = NULL; | |
879 | pixpattern24_t *pixPattern = NULL; | |
880 | int wx, wy; | |
881 | int slot; | |
882 | ||
883 | // Since MGL pens may be created from wxBrush or wxPen and we often | |
884 | // switch between pens and brushes, we take advantage of MGL's ability | |
885 | // to have multiple (pix)pattern_t's loaded. We always download pen | |
886 | // to 0th slot and brush to 1st slot. | |
887 | if ( flag == wxMGL_SELECT_FROM_PEN ) | |
888 | slot = 0; | |
889 | else | |
890 | slot = 1; | |
891 | ||
892 | // compute pen's width: | |
893 | if ( m_pen.GetWidth() <= 1 ) | |
894 | { | |
895 | wx = wy = 1; | |
896 | m_penOfsX = m_penOfsY = 0; | |
897 | } | |
898 | else | |
899 | { | |
900 | wx = (int)(0.5 + fabs((double) XLOG2DEVREL(m_pen.GetWidth()))); | |
901 | wy = (int)(0.5 + fabs((double) YLOG2DEVREL(m_pen.GetWidth()))); | |
902 | m_penOfsX = -wx/2; | |
903 | m_penOfsY = -wy/2; | |
904 | } | |
905 | ||
906 | // find pen's type: | |
907 | penstyle = MGL_BITMAP_TRANSPARENT; | |
908 | switch (style) | |
909 | { | |
910 | case wxBDIAGONAL_HATCH: pattern = &PATTERN_wxBDIAGONAL_HATCH; | |
911 | penstyle = MGL_BITMAP_TRANSPARENT; | |
912 | break; | |
913 | case wxCROSSDIAG_HATCH: pattern = &PATTERN_wxCROSSDIAG_HATCH; | |
914 | penstyle = MGL_BITMAP_TRANSPARENT; | |
915 | break; | |
916 | case wxFDIAGONAL_HATCH: pattern = &PATTERN_wxFDIAGONAL_HATCH; | |
917 | penstyle = MGL_BITMAP_TRANSPARENT; | |
918 | break; | |
919 | case wxCROSS_HATCH: pattern = &PATTERN_wxCROSS_HATCH; | |
920 | penstyle = MGL_BITMAP_TRANSPARENT; | |
921 | break; | |
922 | case wxHORIZONTAL_HATCH: pattern = &PATTERN_wxHORIZONTAL_HATCH; | |
923 | penstyle = MGL_BITMAP_TRANSPARENT; | |
924 | break; | |
925 | case wxVERTICAL_HATCH: pattern = &PATTERN_wxVERTICAL_HATCH; | |
926 | penstyle = MGL_BITMAP_TRANSPARENT; | |
927 | break; | |
928 | ||
929 | case wxSTIPPLE: | |
930 | if ( flag == wxMGL_SELECT_FROM_PEN ) | |
931 | pixPattern = (pixpattern24_t*) m_pen.GetPixPattern(); | |
932 | else | |
933 | pixPattern = (pixpattern24_t*) m_brush.GetPixPattern(); | |
934 | penstyle = MGL_PIXMAP; | |
935 | break; | |
936 | ||
937 | case wxSTIPPLE_MASK_OPAQUE: | |
938 | pattern = (pattern_t*) m_brush.GetMaskPattern(); | |
939 | penstyle = MGL_BITMAP_OPAQUE; | |
940 | break; | |
941 | ||
942 | case wxSOLID: | |
943 | default: | |
944 | penstyle = MGL_BITMAP_SOLID; break; | |
945 | } | |
946 | ||
947 | // ...and finally, pass the pen to MGL: | |
948 | ||
949 | if ( pattern ) | |
950 | { | |
951 | if ( !m_downloadedPatterns[slot] ) | |
952 | { | |
953 | m_MGLDC->setPenBitmapPattern(slot, pattern); | |
954 | m_downloadedPatterns[slot] = TRUE; | |
955 | } | |
956 | m_MGLDC->usePenBitmapPattern(slot); | |
957 | } | |
958 | ||
959 | if ( pixPattern ) | |
960 | { | |
961 | if ( !m_downloadedPatterns[slot] ) | |
962 | { | |
963 | pixpattern_t pix; | |
964 | int x, y, c; | |
965 | ||
966 | switch (GetDepth()) | |
967 | { | |
968 | case 8: | |
969 | for (y = 0; y < 8; y++) | |
970 | for (x = 0; x < 8; x++) | |
971 | pix.b8.p[x][y] = m_MGLDC->packColorFast( | |
972 | pixPattern->p[x][y][0], | |
973 | pixPattern->p[x][y][1], | |
974 | pixPattern->p[x][y][2]); | |
975 | break; | |
976 | case 15: | |
977 | case 16: | |
978 | for (y = 0; y < 8; y++) | |
979 | for (x = 0; x < 8; x++) | |
980 | pix.b16.p[x][y] = m_MGLDC->packColorFast( | |
981 | pixPattern->p[x][y][0], | |
982 | pixPattern->p[x][y][1], | |
983 | pixPattern->p[x][y][2]); | |
984 | break; | |
985 | case 24: | |
986 | for (y = 0; y < 8; y++) | |
987 | for (x = 0; x < 8; x++) | |
988 | for (c = 0; c < 3; c++) | |
989 | pix.b24.p[x][y][c] = pixPattern->p[x][y][c]; | |
990 | break; | |
991 | case 32: | |
992 | for (y = 0; y < 8; y++) | |
993 | for (x = 0; x < 8; x++) | |
994 | pix.b32.p[x][y] = m_MGLDC->packColorFast( | |
995 | pixPattern->p[x][y][0], | |
996 | pixPattern->p[x][y][1], | |
997 | pixPattern->p[x][y][2]); | |
998 | break; | |
999 | default: | |
1000 | wxFAIL_MSG(_T("invalid DC depth")); | |
1001 | break; | |
1002 | } | |
1003 | m_MGLDC->setPenPixmapPattern(slot, &pix); | |
1004 | m_downloadedPatterns[slot] = TRUE; | |
1005 | } | |
1006 | m_MGLDC->usePenPixmapPattern(slot); | |
1007 | } | |
1008 | ||
1009 | m_MGLDC->setLineStyle(MGL_LINE_PENSTYLE); | |
1010 | m_MGLDC->setPenStyle(penstyle); | |
1011 | m_MGLDC->setPenSize(wy, wx); | |
1012 | } | |
1013 | ||
1014 | void wxDC::SelectPen() | |
1015 | { | |
1016 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
1017 | ||
1018 | wxColour& clr = m_pen.GetColour(); | |
1019 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 | |
1020 | m_MGLDC->setColorRGB(clr.Red(), clr.Green(), clr.Blue()); | |
1021 | ||
1022 | switch (m_pen.GetStyle()) | |
1023 | { | |
1024 | case wxTRANSPARENT: | |
1025 | break; | |
1026 | ||
1027 | case wxDOT: | |
1028 | case wxLONG_DASH: | |
1029 | case wxSHORT_DASH: | |
1030 | case wxDOT_DASH: | |
1031 | SelectMGLStipplePen(m_pen.GetStyle()); | |
1032 | break; | |
1033 | ||
1034 | case wxBDIAGONAL_HATCH: | |
1035 | case wxCROSSDIAG_HATCH: | |
1036 | case wxFDIAGONAL_HATCH: | |
1037 | case wxCROSS_HATCH: | |
1038 | case wxHORIZONTAL_HATCH: | |
1039 | case wxVERTICAL_HATCH: | |
1040 | SelectMGLFatPen(m_pen.GetStyle(), wxMGL_SELECT_FROM_PEN); | |
1041 | break; | |
1042 | ||
1043 | case wxSTIPPLE: | |
1044 | SelectMGLFatPen(m_pen.GetStyle(), wxMGL_SELECT_FROM_PEN); | |
1045 | break; | |
1046 | ||
1047 | case wxSOLID: | |
1048 | case wxUSER_DASH: | |
1049 | default: | |
1050 | if ( m_pen.GetWidth() <= 1 ) | |
1051 | SelectMGLStipplePen(wxSOLID); | |
1052 | else | |
1053 | SelectMGLFatPen(wxSOLID, wxMGL_SELECT_FROM_PEN); | |
1054 | break; | |
1055 | } | |
1056 | m_penSelected = TRUE; | |
1057 | m_brushSelected = FALSE; | |
1058 | } | |
1059 | ||
1060 | void wxDC::SelectBrush() | |
1061 | { | |
1062 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
1063 | ||
1064 | wxColour fg, bg; | |
1065 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 | |
1066 | ||
1067 | if ( m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE ) | |
1068 | { | |
1069 | fg = m_textForegroundColour; | |
1070 | bg = m_textBackgroundColour; | |
1071 | } | |
1072 | else | |
1073 | { | |
1074 | fg = m_brush.GetColour(); | |
1075 | bg = m_backgroundBrush.GetColour(); | |
1076 | } | |
1077 | ||
1078 | m_MGLDC->setColorRGB(fg.Red(), fg.Green(), fg.Blue()); | |
1079 | m_MGLDC->setBackColor(m_MGLDC->packColorFast(bg.Red(), bg.Green(), bg.Blue())); | |
1080 | m_penSelected = FALSE; | |
1081 | m_brushSelected = TRUE; | |
1082 | ||
1083 | SelectMGLFatPen(m_brush.GetStyle(), wxMGL_SELECT_FROM_BRUSH); | |
1084 | } | |
1085 | ||
1086 | void wxDC::SetPen(const wxPen& pen) | |
1087 | { | |
1088 | if ( !pen.Ok() ) return; | |
1089 | if ( m_pen == pen ) return; | |
1090 | m_pen = pen; | |
1091 | m_penSelected = FALSE; | |
1092 | m_downloadedPatterns[0] = FALSE; | |
1093 | } | |
1094 | ||
1095 | void wxDC::SetBrush(const wxBrush& brush) | |
1096 | { | |
1097 | if ( !brush.Ok() ) return; | |
1098 | if ( m_brush == brush ) return; | |
1099 | m_brush = brush; | |
1100 | m_brushSelected = FALSE; | |
1101 | m_downloadedPatterns[1] = FALSE; | |
1102 | } | |
1103 | ||
1104 | void wxDC::SetPalette(const wxPalette& palette) | |
1105 | { | |
1106 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
1107 | ||
1108 | if ( palette == wxNullPalette ) | |
1109 | { | |
1110 | if ( m_oldPalette.Ok() ) | |
1111 | SetPalette(m_oldPalette); | |
1112 | return; | |
1113 | } | |
1114 | ||
1115 | if ( !palette.Ok() ) return; | |
1116 | if ( m_palette == palette ) return; | |
1117 | m_oldPalette = m_palette; | |
1118 | m_palette = palette; | |
1119 | ||
1120 | int cnt = m_palette.GetColoursCount(); | |
1121 | palette_t *pal = m_palette.GetMGLpalette_t(); | |
1122 | m_MGLDC->setPalette(pal, cnt, 0); | |
1123 | m_MGLDC->realizePalette(cnt, 0, TRUE); | |
1124 | } | |
1125 | ||
1126 | void wxDC::SetFont(const wxFont& font) | |
1127 | { | |
1128 | if ( font.Ok() ) | |
1129 | { | |
1130 | m_font = font; | |
1131 | m_mglFont = NULL; | |
1132 | } | |
1133 | } | |
1134 | ||
1135 | void wxDC::SetBackground(const wxBrush& brush) | |
1136 | { | |
1137 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
1138 | ||
1139 | if (!m_backgroundBrush.Ok()) return; | |
1140 | ||
1141 | m_backgroundBrush = brush; | |
1142 | wxColour &clr = m_backgroundBrush.GetColour(); | |
1143 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 | |
1144 | m_MGLDC->setBackColor( | |
1145 | m_MGLDC->packColorFast(clr.Red(), clr.Green(), clr.Blue())); | |
1146 | } | |
1147 | ||
1148 | void wxDC::SetBackgroundMode(int mode) | |
1149 | { | |
1150 | m_backgroundMode = mode; | |
1151 | if ( mode == wxSOLID ) | |
1152 | m_MGLDC->setBackMode(MGL_OPAQUE_BACKGROUND); | |
1153 | else | |
1154 | m_MGLDC->setBackMode(MGL_TRANSPARENT_BACKGROUND); | |
1155 | } | |
1156 | ||
1157 | void wxDC::SetLogicalFunction(int function) | |
1158 | { | |
1159 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
1160 | ||
1161 | m_logicalFunction = function; | |
1162 | ||
1163 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 | |
1164 | m_MGLDC->setWriteMode(LogicalFunctionToMGLRop(m_logicalFunction)); | |
1165 | } | |
1166 | ||
1167 | int wxDC::LogicalFunctionToMGLRop(int logFunc) const | |
1168 | { | |
1169 | MGL_writeModeType rop; | |
1170 | ||
1171 | switch (logFunc) | |
1172 | { | |
1173 | case wxCLEAR: rop = MGL_R2_BLACK; break; | |
1174 | case wxXOR: rop = MGL_R2_XORSRC; break; | |
1175 | case wxINVERT: rop = MGL_R2_NOT; break; | |
1176 | case wxOR_REVERSE: rop = MGL_R2_MERGESRCNOT; break; | |
1177 | case wxAND_REVERSE: rop = MGL_R2_MASKSRCNOT; break; | |
1178 | case wxCOPY: rop = MGL_R2_COPYSRC; break; | |
1179 | case wxAND: rop = MGL_R2_MASKSRC; break; | |
1180 | case wxAND_INVERT: rop = MGL_R2_MASKNOTSRC; break; | |
1181 | case wxNO_OP: rop = MGL_R2_NOP; break; | |
1182 | case wxNOR: rop = MGL_R2_NOTMERGESRC; break; | |
1183 | case wxEQUIV: rop = MGL_R2_NOTXORSRC; break; | |
1184 | case wxSRC_INVERT: rop = MGL_R2_NOTCOPYSRC; break; | |
1185 | case wxOR_INVERT: rop = MGL_R2_MERGENOTSRC; break; | |
1186 | case wxNAND: rop = MGL_R2_NOTMASKSRC; break; | |
1187 | case wxOR: rop = MGL_R2_MERGESRC; break; | |
1188 | case wxSET: rop = MGL_R2_WHITE; break; | |
1189 | default: | |
1190 | wxFAIL_MSG( wxT("unsupported logical function") ); | |
1191 | return MGL_REPLACE_MODE; | |
1192 | } | |
1193 | return (int)rop; | |
1194 | } | |
1195 | ||
1196 | bool wxDC::StartDoc(const wxString& message) | |
1197 | { | |
1198 | // We might be previewing, so return TRUE to let it continue. | |
1199 | return TRUE; | |
1200 | } | |
1201 | ||
1202 | void wxDC::EndDoc() | |
1203 | { | |
1204 | } | |
1205 | ||
1206 | void wxDC::StartPage() | |
1207 | { | |
1208 | } | |
1209 | ||
1210 | void wxDC::EndPage() | |
1211 | { | |
1212 | } | |
1213 | ||
1214 | // --------------------------------------------------------------------------- | |
1215 | // text metrics | |
1216 | // --------------------------------------------------------------------------- | |
1217 | ||
1218 | wxCoord wxDC::GetCharHeight() const | |
1219 | { | |
1220 | wxCurrentDCSwitcher switcher(m_MGLDC); | |
1221 | if ( !wxConstCast(this, wxDC)->SelectMGLFont() ) return -1; | |
1222 | return YDEV2LOGREL(m_mglFont->fontHeight); | |
1223 | } | |
1224 | ||
1225 | wxCoord wxDC::GetCharWidth() const | |
1226 | { | |
1227 | wxCurrentDCSwitcher switcher(m_MGLDC); | |
1228 | if ( !wxConstCast(this, wxDC)->SelectMGLFont() ) return -1; | |
1229 | // VS: wxT() is intentional, charWidth() has both char and wchar_t version | |
1230 | // VS: YDEV is corrent, it should *not* be XDEV, because font's are only | |
1231 | // scaled according to m_scaleY | |
1232 | return YDEV2LOGREL(m_mglFont->fontWidth); | |
1233 | } | |
1234 | ||
1235 | void wxDC::DoGetTextExtent(const wxString& string, wxCoord *x, wxCoord *y, | |
1236 | wxCoord *descent, wxCoord *externalLeading, | |
1237 | wxFont *theFont) const | |
1238 | { | |
1239 | wxFont oldFont; | |
1240 | ||
1241 | if ( theFont != NULL ) | |
1242 | { | |
1243 | oldFont = m_font; | |
1244 | wxConstCast(this, wxDC)->SetFont(*theFont); | |
1245 | } | |
1246 | ||
1247 | wxCurrentDCSwitcher switcher(m_MGLDC); | |
1248 | if ( !wxConstCast(this, wxDC)->SelectMGLFont() ) return; | |
1249 | ||
1250 | if ( x ) | |
1251 | // VS: YDEV is corrent, it should *not* be XDEV, because font's are | |
1252 | // only scaled according to m_scaleY | |
1253 | *x = YDEV2LOGREL(m_MGLDC->textWidth(string.c_str())); | |
1254 | if ( y ) | |
1255 | *y = YDEV2LOGREL(m_MGLDC->textHeight()); | |
1256 | if ( descent ) | |
1257 | *descent = YDEV2LOGREL(m_mglFont->descent); | |
1258 | if ( externalLeading ) | |
1259 | *externalLeading = YDEV2LOGREL(m_mglFont->leading); | |
1260 | ||
1261 | if ( theFont != NULL ) | |
1262 | wxConstCast(this, wxDC)->SetFont(oldFont); | |
1263 | } | |
1264 | ||
1265 | ||
1266 | ||
1267 | // --------------------------------------------------------------------------- | |
1268 | // mapping modes | |
1269 | // --------------------------------------------------------------------------- | |
1270 | ||
1271 | void wxDC::ComputeScaleAndOrigin() | |
1272 | { | |
1273 | double newX = m_logicalScaleX * m_userScaleX; | |
1274 | double newY = m_logicalScaleY * m_userScaleY; | |
1275 | ||
1276 | // make sure font will be reloaded before drawing: | |
1277 | if ( newY != m_scaleY ) | |
1278 | m_mglFont = NULL; | |
1279 | // make sure m_penOfs{X,Y} will be reevaluated before drawing: | |
1280 | if ( newY != m_scaleY || newX != m_scaleX ) | |
1281 | m_penSelected = FALSE; | |
1282 | ||
1283 | m_scaleX = newX, m_scaleY = newY; | |
1284 | } | |
1285 | ||
1286 | void wxDC::SetMapMode(int mode) | |
1287 | { | |
1288 | switch (mode) | |
1289 | { | |
1290 | case wxMM_TWIPS: | |
1291 | SetLogicalScale(twips2mm*m_mm_to_pix_x, twips2mm*m_mm_to_pix_y); | |
1292 | break; | |
1293 | case wxMM_POINTS: | |
1294 | SetLogicalScale(pt2mm*m_mm_to_pix_x, pt2mm*m_mm_to_pix_y); | |
1295 | break; | |
1296 | case wxMM_METRIC: | |
1297 | SetLogicalScale(m_mm_to_pix_x, m_mm_to_pix_y); | |
1298 | break; | |
1299 | case wxMM_LOMETRIC: | |
1300 | SetLogicalScale(m_mm_to_pix_x/10.0, m_mm_to_pix_y/10.0); | |
1301 | break; | |
1302 | default: | |
1303 | case wxMM_TEXT: | |
1304 | SetLogicalScale(1.0, 1.0); | |
1305 | break; | |
1306 | } | |
1307 | m_mappingMode = mode; | |
1308 | } | |
1309 | ||
1310 | void wxDC::SetUserScale( double x, double y ) | |
1311 | { | |
1312 | // allow negative ? -> no | |
1313 | m_userScaleX = x; | |
1314 | m_userScaleY = y; | |
1315 | ComputeScaleAndOrigin(); | |
1316 | } | |
1317 | ||
1318 | void wxDC::SetLogicalScale( double x, double y ) | |
1319 | { | |
1320 | // allow negative ? | |
1321 | m_logicalScaleX = x; | |
1322 | m_logicalScaleY = y; | |
1323 | ComputeScaleAndOrigin(); | |
1324 | } | |
1325 | ||
1326 | void wxDC::SetLogicalOrigin( wxCoord x, wxCoord y ) | |
1327 | { | |
1328 | m_logicalOriginX = x * m_signX; // is this still correct ? | |
1329 | m_logicalOriginY = y * m_signY; | |
1330 | ComputeScaleAndOrigin(); | |
1331 | } | |
1332 | ||
1333 | void wxDC::SetDeviceOrigin( wxCoord x, wxCoord y ) | |
1334 | { | |
1335 | // only wxPostScripDC has m_signX = -1, we override SetDeviceOrigin there | |
1336 | m_deviceOriginX = x; | |
1337 | m_deviceOriginY = y; | |
1338 | ComputeScaleAndOrigin(); | |
1339 | } | |
1340 | ||
1341 | void wxDC::SetAxisOrientation( bool xLeftRight, bool yBottomUp ) | |
1342 | { | |
1343 | // only wxPostScripDC has m_signX = -1, we override SetAxisOrientation there | |
1344 | m_signX = (xLeftRight ? 1 : -1); | |
1345 | m_signY = (yBottomUp ? -1 : 1); | |
1346 | ComputeScaleAndOrigin(); | |
1347 | } | |
1348 | ||
1349 | // --------------------------------------------------------------------------- | |
1350 | // coordinates transformations | |
1351 | // --------------------------------------------------------------------------- | |
1352 | ||
1353 | wxCoord wxDCBase::DeviceToLogicalX(wxCoord x) const | |
1354 | { | |
1355 | return ((wxDC *)this)->XDEV2LOG(x); | |
1356 | } | |
1357 | ||
1358 | wxCoord wxDCBase::DeviceToLogicalY(wxCoord y) const | |
1359 | { | |
1360 | return ((wxDC *)this)->YDEV2LOG(y); | |
1361 | } | |
1362 | ||
1363 | wxCoord wxDCBase::DeviceToLogicalXRel(wxCoord x) const | |
1364 | { | |
1365 | return ((wxDC *)this)->XDEV2LOGREL(x); | |
1366 | } | |
1367 | ||
1368 | wxCoord wxDCBase::DeviceToLogicalYRel(wxCoord y) const | |
1369 | { | |
1370 | return ((wxDC *)this)->YDEV2LOGREL(y); | |
1371 | } | |
1372 | ||
1373 | wxCoord wxDCBase::LogicalToDeviceX(wxCoord x) const | |
1374 | { | |
1375 | return ((wxDC *)this)->XLOG2DEV(x); | |
1376 | } | |
1377 | ||
1378 | wxCoord wxDCBase::LogicalToDeviceY(wxCoord y) const | |
1379 | { | |
1380 | return ((wxDC *)this)->YLOG2DEV(y); | |
1381 | } | |
1382 | ||
1383 | wxCoord wxDCBase::LogicalToDeviceXRel(wxCoord x) const | |
1384 | { | |
1385 | return ((wxDC *)this)->XLOG2DEVREL(x); | |
1386 | } | |
1387 | ||
1388 | wxCoord wxDCBase::LogicalToDeviceYRel(wxCoord y) const | |
1389 | { | |
1390 | return ((wxDC *)this)->YLOG2DEVREL(y); | |
1391 | } | |
1392 | ||
1393 | ||
1394 | void wxDC::DoGetSize(int *w, int *h) const | |
1395 | { | |
1396 | if (w) *w = m_MGLDC->sizex()+1; | |
1397 | if (h) *h = m_MGLDC->sizey()+1; | |
1398 | } | |
1399 | ||
1400 | void wxDC::DoGetSizeMM(int *width, int *height) const | |
1401 | { | |
1402 | int w = 0; | |
1403 | int h = 0; | |
1404 | GetSize(&w, &h); | |
1405 | if ( width ) *width = int(double(w) / (m_userScaleX*m_mm_to_pix_x)); | |
1406 | if ( height ) *height = int(double(h) / (m_userScaleY*m_mm_to_pix_y)); | |
1407 | } | |
1408 | ||
1409 | wxSize wxDC::GetPPI() const | |
1410 | { | |
1411 | return wxSize(int(double(m_mm_to_pix_x) * inches2mm), | |
1412 | int(double(m_mm_to_pix_y) * inches2mm)); | |
1413 | } | |
1414 | ||
1415 | ||
1416 | // --------------------------------------------------------------------------- | |
1417 | // Blitting | |
1418 | // --------------------------------------------------------------------------- | |
1419 | ||
1420 | bool wxDC::DoBlit(wxCoord xdest, wxCoord ydest, | |
1421 | wxCoord width, wxCoord height, | |
1422 | wxDC *source, wxCoord xsrc, wxCoord ysrc, | |
1423 | int rop, bool useMask, | |
1424 | wxCoord xsrcMask, wxCoord ysrcMask) | |
1425 | { | |
1426 | wxCHECK_MSG( Ok(), FALSE, wxT("invalid dc") ); | |
1427 | wxCHECK_MSG( source, FALSE, wxT("invalid source dc") ); | |
1428 | ||
1429 | // transform the source DC coords to the device ones | |
1430 | xsrc = source->LogicalToDeviceX(xsrc); | |
1431 | ysrc = source->LogicalToDeviceY(ysrc); | |
1432 | ||
1433 | /* FIXME_MGL: use the mask origin when drawing transparently */ | |
1434 | if (xsrcMask == -1 && ysrcMask == -1) | |
1435 | { | |
1436 | xsrcMask = xsrc; ysrcMask = ysrc; | |
1437 | } | |
1438 | else | |
1439 | { | |
1440 | xsrcMask = source->LogicalToDeviceX(xsrcMask); | |
1441 | ysrcMask = source->LogicalToDeviceY(ysrcMask); | |
1442 | } | |
1443 | ||
1444 | CalcBoundingBox(xdest, ydest); | |
1445 | CalcBoundingBox(xdest + width, ydest + height); | |
1446 | ||
1447 | /* scale/translate size and position */ | |
1448 | wxCoord xx = XLOG2DEV(xdest); | |
1449 | wxCoord yy = YLOG2DEV(ydest); | |
1450 | wxCoord ww = XLOG2DEVREL(width); | |
1451 | wxCoord hh = YLOG2DEVREL(height); | |
1452 | ||
1453 | if ( source->m_isMemDC ) | |
1454 | { | |
1455 | wxMemoryDC *memDC = (wxMemoryDC*) source; | |
1456 | DoDrawSubBitmap(memDC->GetSelectedObject(), xsrc, ysrc, ww, hh, | |
1457 | xdest, ydest, rop, useMask); | |
1458 | } | |
1459 | else | |
1460 | { | |
1461 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 | |
1462 | m_MGLDC->bitBlt(*source->GetMGLDC(), | |
1463 | xsrc, ysrc, xsrc + ww, ysrc + hh, | |
1464 | xx, yy, LogicalFunctionToMGLRop(rop)); | |
1465 | } | |
1466 | ||
1467 | return TRUE; | |
1468 | } | |
1469 | ||
1470 | void wxDC::DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y, bool useMask) | |
1471 | { | |
1472 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
1473 | wxCHECK_RET( bmp.Ok(), wxT("invalid bitmap") ); | |
1474 | ||
1475 | wxCoord w = bmp.GetWidth(); | |
1476 | wxCoord h = bmp.GetHeight(); | |
1477 | ||
1478 | DoDrawSubBitmap(bmp, 0, 0, w, h, x, y, m_logicalFunction, useMask); | |
1479 | } | |
1480 | ||
1481 | void wxDC::DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y) | |
1482 | { | |
1483 | // VZ: egcs 1.0.3 refuses to compile this without cast, no idea why | |
1484 | DoDrawBitmap((const wxBitmap&)icon, x, y, (bool)TRUE); | |
1485 | } | |
1486 | ||
1487 | ||
1488 | static inline void DoBitBlt(const wxBitmap& src, MGLDevCtx *dst, | |
1489 | int sx, int sy, int sw, int sh, | |
1490 | int dx, int dy, int dw, int dh, | |
1491 | int rop, bool useStretching, bool putSection) | |
1492 | { | |
1493 | bitmap_t *bmp = src.GetMGLbitmap_t(); | |
1494 | if (!useStretching) | |
1495 | { | |
1496 | if (!putSection) | |
1497 | dst->putBitmap(dx, dy, bmp, rop); | |
1498 | else | |
1499 | dst->putBitmapSection(sx, sy, sx + sw, sy + sh, dx, dy, bmp, rop); | |
1500 | } | |
1501 | else | |
1502 | { | |
1503 | if (!putSection) | |
1504 | dst->stretchBitmap(dx, dy, dx + dw, dy + dh, bmp, rop); | |
1505 | else | |
1506 | dst->stretchBitmapSection(sx, sy, sx + sw, sy + sh, | |
1507 | dx, dy, dx + dw, dy + dh, bmp, rop); | |
1508 | } | |
1509 | } | |
1510 | ||
1511 | void wxDC::DoDrawSubBitmap(const wxBitmap &bmp, | |
1512 | wxCoord x, wxCoord y, wxCoord w, wxCoord h, | |
1513 | wxCoord destx, wxCoord desty, int rop, bool useMask) | |
1514 | { | |
1515 | wxCHECK_RET( Ok(), wxT("invalid dc") ); | |
1516 | wxCHECK_RET( bmp.Ok(), wxT("invalid bitmap") ); | |
1517 | ||
1518 | CalcBoundingBox(x, y); | |
1519 | CalcBoundingBox(x + w, y + h); | |
1520 | ||
1521 | wxCoord dx = XLOG2DEV(destx); | |
1522 | wxCoord dy = YLOG2DEV(desty); | |
1523 | wxCoord dw = XLOG2DEVREL(w); | |
1524 | wxCoord dh = YLOG2DEVREL(h); | |
1525 | ||
1526 | m_MGLDC->makeCurrent(); // will go away with MGL6.0 | |
1527 | ||
1528 | bool useStretching = ((w != dw) || (h != dh)); | |
1529 | bool putSection = (w != bmp.GetWidth() || h != bmp.GetHeight()); | |
1530 | MGL_writeModeType mglRop = (MGL_writeModeType)LogicalFunctionToMGLRop(rop); | |
1531 | ||
1532 | if ( bmp.GetDepth() == 1 ) | |
1533 | { | |
1534 | // Mono bitmaps are handled in special way -- all 1s are drawn in | |
1535 | // foreground colours, all 0s in background colour. | |
1536 | ||
1537 | ((wxBitmap&)bmp).SetMonoPalette(m_textForegroundColour, m_textBackgroundColour); | |
1538 | } | |
1539 | ||
1540 | if ( useMask && bmp.GetMask() ) | |
1541 | { | |
1542 | // Since MGL does not support masks directly (in MGL, mask is handled | |
1543 | // in same way as in wxImage, i.e. there is one "key" color), we | |
1544 | // simulate masked bitblt in 6 steps (same as in MSW): | |
1545 | // | |
1546 | // 1. Create a temporary bitmap and copy the destination area into it. | |
1547 | // 2. Copy the source area into the temporary bitmap using the | |
1548 | // specified logical function. | |
1549 | // 3. Set the masked area in the temporary bitmap to BLACK by ANDing | |
1550 | // the mask bitmap with the temp bitmap with the foreground colour | |
1551 | // set to WHITE and the bg colour set to BLACK. | |
1552 | // 4. Set the unmasked area in the destination area to BLACK by | |
1553 | // ANDing the mask bitmap with the destination area with the | |
1554 | // foreground colour set to BLACK and the background colour set | |
1555 | // to WHITE. | |
1556 | // 5. OR the temporary bitmap with the destination area. | |
1557 | // 6. Delete the temporary bitmap. | |
1558 | // | |
1559 | // This sequence of operations ensures that the source's transparent | |
1560 | // area need not be black, and logical functions are supported. | |
1561 | ||
1562 | wxBitmap *mask = bmp.GetMask()->GetBitmap(); | |
1563 | ||
1564 | MGLMemoryDC *temp; | |
1565 | ||
1566 | if ( GetDepth() <= 8 ) | |
1567 | { | |
1568 | temp = new MGLMemoryDC(dw, dh, GetDepth(), NULL); | |
1569 | wxDC tempdc; | |
1570 | tempdc.SetMGLDC(temp, FALSE); | |
1571 | tempdc.SetPalette(m_palette); | |
1572 | } | |
1573 | else | |
1574 | { | |
1575 | pixel_format_t pf; | |
1576 | m_MGLDC->getPixelFormat(pf); | |
1577 | temp = new MGLMemoryDC(dw, dh, GetDepth(), &pf); | |
1578 | } | |
1579 | ||
1580 | wxCHECK_RET( temp->isValid(), wxT("cannot create temporary dc") ); | |
1581 | ||
1582 | temp->bitBlt(*m_MGLDC, dx, dy, dx + dw, dy + dh, 0, 0, MGL_REPLACE_MODE); | |
1583 | ||
1584 | DoBitBlt(bmp, temp, x, y, w, h, 0, 0, dw, dh, mglRop, | |
1585 | useStretching, putSection); | |
1586 | ||
1587 | mask->SetMonoPalette(wxColour(0,0,0), wxColour(255,255,255)); | |
1588 | DoBitBlt(*mask, temp, x, y, w, h, 0, 0, dw, dh, MGL_R2_MASKSRC, | |
1589 | useStretching, putSection); | |
1590 | DoBitBlt(*mask, m_MGLDC, x, y, w, h, dx, dy, dw, dh, MGL_R2_MASKNOTSRC, | |
1591 | useStretching, putSection); | |
1592 | ||
1593 | m_MGLDC->bitBlt(*temp, 0, 0, dw, dh, dx, dy, MGL_OR_MODE); | |
1594 | ||
1595 | delete temp; | |
1596 | } | |
1597 | ||
1598 | else | |
1599 | { | |
1600 | DoBitBlt(bmp, m_MGLDC, x, y, w, h, dx, dy, dw, dh, mglRop, | |
1601 | useStretching, putSection); | |
1602 | } | |
1603 | } |