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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: dc.cpp | |
3 | // Purpose: wxDC class | |
4 | // Author: David Webster | |
5 | // Modified by: | |
6 | // Created: 10/14/99 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) David Webster | |
9 | // Licence: wxWindows licence | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | // For compilers that support precompilation, includes "wx.h". | |
13 | #include "wx/wxprec.h" | |
14 | ||
15 | #ifndef WX_PRECOMP | |
16 | #include "wx/window.h" | |
17 | #include "wx/dc.h" | |
18 | #include "wx/utils.h" | |
19 | #include "wx/dialog.h" | |
20 | #include "wx/app.h" | |
21 | #include "wx/bitmap.h" | |
22 | #include "wx/dcmemory.h" | |
23 | #include "wx/log.h" | |
24 | #include "wx/icon.h" | |
25 | #include "wx/msgdlg.h" | |
26 | #include "wx/module.h" | |
27 | #endif | |
28 | ||
29 | #include "wx/dcprint.h" | |
30 | ||
31 | #include <string.h> | |
32 | #include <math.h> | |
33 | ||
34 | #include "wx/os2/private.h" | |
35 | ||
36 | IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject) | |
37 | ||
38 | // | |
39 | // wxWindows uses the Microsoft convention that the origin is the UPPER left. | |
40 | // Native OS/2 however in the GPI and PM define the origin as the LOWER left. | |
41 | // In order to map OS/2 GPI/PM y coordinates to wxWindows coordinates we must | |
42 | // perform the following transformation: | |
43 | // | |
44 | // Parent object height: POBJHEIGHT | |
45 | // Desried origin: WXORIGINY | |
46 | // Object to place's height: OBJHEIGHT | |
47 | // | |
48 | // To get the OS2 position from the wxWindows one: | |
49 | // | |
50 | // OS2Y = POBJHEIGHT - (WXORIGINY + OBJHEIGHT) | |
51 | // | |
52 | // For OS/2 wxDC's we will always determine m_vRclPaint as the size of the | |
53 | // OS/2 Presentation Space associated with the device context. y is the | |
54 | // desired application's y coordinate of the origin in wxWindows space. | |
55 | // objy is the height of the object we are going to draw. | |
56 | // | |
57 | #define OS2Y(y, objy) ((m_vRclPaint.yTop - m_vRclPaint.yBottom) - (y + objy)) | |
58 | ||
59 | // --------------------------------------------------------------------------- | |
60 | // constants | |
61 | // --------------------------------------------------------------------------- | |
62 | ||
63 | static const int VIEWPORT_EXTENT = 1000; | |
64 | ||
65 | static const int MM_POINTS = 9; | |
66 | static const int MM_METRIC = 10; | |
67 | ||
68 | // usually this is defined in math.h | |
69 | #ifndef M_PI | |
70 | static const double M_PI = 3.14159265358979323846; | |
71 | #endif // M_PI | |
72 | ||
73 | // --------------------------------------------------------------------------- | |
74 | // private functions | |
75 | // --------------------------------------------------------------------------- | |
76 | ||
77 | // convert degrees to radians | |
78 | static inline double DegToRad(double deg) { return (deg * M_PI) / 180.0; } | |
79 | ||
80 | int SetTextColor( | |
81 | HPS hPS | |
82 | , int nForegroundColour | |
83 | ) | |
84 | { | |
85 | CHARBUNDLE vCbnd; | |
86 | ||
87 | vCbnd.lColor = nForegroundColour; | |
88 | ::GpiSetAttrs( hPS // presentation-space handle | |
89 | ,PRIM_CHAR // Char primitive. | |
90 | ,CBB_COLOR // sets color. | |
91 | ,0 // | |
92 | ,&vCbnd // buffer for attributes. | |
93 | ); | |
94 | return 0; | |
95 | } | |
96 | ||
97 | int QueryTextBkColor( | |
98 | HPS hPS | |
99 | ) | |
100 | { | |
101 | CHARBUNDLE vCbnd; | |
102 | ||
103 | ::GpiQueryAttrs( hPS // presentation-space handle | |
104 | ,PRIM_CHAR // Char primitive. | |
105 | ,CBB_BACK_COLOR // Background color. | |
106 | ,&vCbnd // buffer for attributes. | |
107 | ); | |
108 | return vCbnd.lBackColor; | |
109 | } | |
110 | ||
111 | ||
112 | int SetTextBkColor( | |
113 | HPS hPS | |
114 | , int nBackgroundColour | |
115 | ) | |
116 | { | |
117 | CHARBUNDLE vCbnd; | |
118 | int rc; | |
119 | ||
120 | rc = QueryTextBkColor(hPS); | |
121 | ||
122 | vCbnd.lBackColor = nBackgroundColour; | |
123 | ::GpiSetAttrs(hPS, // presentation-space handle | |
124 | PRIM_CHAR, // Char primitive. | |
125 | CBB_BACK_COLOR, // sets color. | |
126 | 0, | |
127 | &vCbnd // buffer for attributes. | |
128 | ); | |
129 | return rc; | |
130 | } | |
131 | ||
132 | int SetBkMode( | |
133 | HPS hPS | |
134 | , int nBackgroundMode | |
135 | ) | |
136 | { | |
137 | if(nBackgroundMode == wxTRANSPARENT) | |
138 | ::GpiSetBackMix( hPS | |
139 | ,BM_LEAVEALONE | |
140 | ); | |
141 | else | |
142 | // the background of the primitive takes over whatever is underneath. | |
143 | ::GpiSetBackMix( hPS | |
144 | ,BM_OVERPAINT | |
145 | ); | |
146 | return 0; | |
147 | } | |
148 | ||
149 | // =========================================================================== | |
150 | // implementation | |
151 | // =========================================================================== | |
152 | ||
153 | #if wxUSE_DC_CACHEING | |
154 | ||
155 | /* | |
156 | * This implementation is a bit ugly and uses the old-fashioned wxList class, so I will | |
157 | * improve it in due course, either using arrays, or simply storing pointers to one | |
158 | * entry for the bitmap, and two for the DCs. -- JACS | |
159 | */ | |
160 | ||
161 | // --------------------------------------------------------------------------- | |
162 | // wxDCCacheEntry | |
163 | // --------------------------------------------------------------------------- | |
164 | ||
165 | wxList wxDC::m_svBitmapCache; | |
166 | wxList wxDC::m_svDCCache; | |
167 | ||
168 | wxDCCacheEntry::wxDCCacheEntry( | |
169 | WXHBITMAP hBitmap | |
170 | , int nWidth | |
171 | , int nHeight | |
172 | , int nDepth | |
173 | ) | |
174 | { | |
175 | m_hBitmap = hBitmap; | |
176 | m_hPS = NULLHANDLE; | |
177 | m_nWidth = nWidth; | |
178 | m_nHeight = nHeight; | |
179 | m_nDepth = nDepth; | |
180 | } // end of wxDCCacheEntry::wxDCCacheEntry | |
181 | ||
182 | wxDCCacheEntry::wxDCCacheEntry( | |
183 | HPS hPS | |
184 | , int nDepth | |
185 | ) | |
186 | { | |
187 | m_hBitmap = NULLHANDLE; | |
188 | m_hPS = hPS; | |
189 | m_nWidth = 0; | |
190 | m_nHeight = 0; | |
191 | m_nDepth = nDepth; | |
192 | } // end of wxDCCacheEntry::wxDCCacheEntry | |
193 | ||
194 | wxDCCacheEntry::~wxDCCacheEntry() | |
195 | { | |
196 | if (m_hBitmap) | |
197 | ::GpiDeleteBitmap(m_hBitmap); | |
198 | if (m_hPS) | |
199 | ::GpiDestroyPS(m_hPS); | |
200 | } // end of wxDCCacheEntry::~wxDCCacheEntry | |
201 | ||
202 | wxDCCacheEntry* wxDC::FindBitmapInCache( | |
203 | HPS hPS | |
204 | , int nWidth | |
205 | , int nHeight | |
206 | ) | |
207 | { | |
208 | int nDepth = 24; // we'll fix this later ::GetDeviceCaps((HDC) dc, PLANES) * ::GetDeviceCaps((HDC) dc, BITSPIXEL); | |
209 | wxNode* pNode = m_svBitmapCache.First(); | |
210 | BITMAPINFOHEADER2 vBmpHdr; | |
211 | ||
212 | while(pNode) | |
213 | { | |
214 | wxDCCacheEntry* pEntry = (wxDCCacheEntry*)pNode->Data(); | |
215 | ||
216 | if (pEntry->m_nDepth == nDepth) | |
217 | { | |
218 | memset(&vBmpHdr, 0, sizeof(BITMAPINFOHEADER2)); | |
219 | ||
220 | if (pEntry->m_nWidth < nWidth || pEntry->m_nHeight < nHeight) | |
221 | { | |
222 | ::GpiDeleteBitmap((HBITMAP)pEntry->m_hBitmap); | |
223 | vBmpHdr.cbFix = sizeof(BITMAPINFOHEADER2); | |
224 | vBmpHdr.cx = nWidth; | |
225 | vBmpHdr.cy = nHeight; | |
226 | vBmpHdr.cPlanes = 1; | |
227 | vBmpHdr.cBitCount = nDepth; | |
228 | ||
229 | pEntry->m_hBitmap = (WXHBITMAP) ::GpiCreateBitmap( hPS | |
230 | ,&vBmpHdr | |
231 | ,0L, NULL, NULL | |
232 | ); | |
233 | if (!pEntry->m_hBitmap) | |
234 | { | |
235 | wxLogLastError(wxT("CreateCompatibleBitmap")); | |
236 | } | |
237 | pEntry->m_nWidth = nWidth; | |
238 | pEntry->m_nHeight = nHeight; | |
239 | return pEntry; | |
240 | } | |
241 | return pEntry; | |
242 | } | |
243 | pNode = pNode->Next(); | |
244 | } | |
245 | memset(&vBmpHdr, 0, sizeof(BITMAPINFOHEADER2)); | |
246 | vBmpHdr.cbFix = sizeof(BITMAPINFOHEADER2); | |
247 | vBmpHdr.cx = nWidth; | |
248 | vBmpHdr.cy = nHeight; | |
249 | vBmpHdr.cPlanes = 1; | |
250 | vBmpHdr.cBitCount = nDepth; | |
251 | ||
252 | WXHBITMAP hBitmap = (WXHBITMAP) ::GpiCreateBitmap( hPS | |
253 | ,&vBmpHdr | |
254 | ,0L, NULL, NULL | |
255 | ); | |
256 | if (!hBitmap) | |
257 | { | |
258 | wxLogLastError(wxT("CreateCompatibleBitmap")); | |
259 | } | |
260 | wxDCCacheEntry* pEntry = new wxDCCacheEntry( hBitmap | |
261 | ,nWidth | |
262 | ,nHeight | |
263 | ,nDepth | |
264 | ); | |
265 | AddToBitmapCache(pEntry); | |
266 | return pEntry; | |
267 | } // end of FindBitmapInCache | |
268 | ||
269 | wxDCCacheEntry* wxDC::FindDCInCache( | |
270 | wxDCCacheEntry* pNotThis | |
271 | , HPS hPS | |
272 | ) | |
273 | { | |
274 | int nDepth = 24; // we'll fix this up later ::GetDeviceCaps((HDC) dc, PLANES) * ::GetDeviceCaps((HDC) dc, BITSPIXEL); | |
275 | wxNode* pNode = m_svDCCache.First(); | |
276 | ||
277 | while(pNode) | |
278 | { | |
279 | wxDCCacheEntry* pEntry = (wxDCCacheEntry*)pNode->Data(); | |
280 | ||
281 | // | |
282 | // Don't return the same one as we already have | |
283 | // | |
284 | if (!pNotThis || (pNotThis != pEntry)) | |
285 | { | |
286 | if (pEntry->m_nDepth == nDepth) | |
287 | { | |
288 | return pEntry; | |
289 | } | |
290 | } | |
291 | pNode = pNode->Next(); | |
292 | } | |
293 | wxDCCacheEntry* pEntry = new wxDCCacheEntry( hPS | |
294 | ,nDepth | |
295 | ); | |
296 | AddToDCCache(pEntry); | |
297 | return pEntry; | |
298 | } // end of wxDC::FindDCInCache | |
299 | ||
300 | void wxDC::AddToBitmapCache( | |
301 | wxDCCacheEntry* pEntry | |
302 | ) | |
303 | { | |
304 | m_svBitmapCache.Append(pEntry); | |
305 | } // end of wxDC::AddToBitmapCache | |
306 | ||
307 | void wxDC::AddToDCCache( | |
308 | wxDCCacheEntry* pEntry | |
309 | ) | |
310 | { | |
311 | m_svDCCache.Append(pEntry); | |
312 | } // end of wxDC::AddToDCCache | |
313 | ||
314 | void wxDC::ClearCache() | |
315 | { | |
316 | m_svBitmapCache.DeleteContents(TRUE); | |
317 | m_svBitmapCache.Clear(); | |
318 | m_svBitmapCache.DeleteContents(FALSE); | |
319 | m_svDCCache.DeleteContents(TRUE); | |
320 | m_svDCCache.Clear(); | |
321 | m_svDCCache.DeleteContents(FALSE); | |
322 | } // end of wxDC::ClearCache | |
323 | ||
324 | // Clean up cache at app exit | |
325 | class wxDCModule : public wxModule | |
326 | { | |
327 | public: | |
328 | virtual bool OnInit() { return TRUE; } | |
329 | virtual void OnExit() { wxDC::ClearCache(); } | |
330 | ||
331 | private: | |
332 | DECLARE_DYNAMIC_CLASS(wxDCModule) | |
333 | }; // end of CLASS wxDCModule | |
334 | ||
335 | IMPLEMENT_DYNAMIC_CLASS(wxDCModule, wxModule) | |
336 | ||
337 | #endif // ndef for wxUSE_DC_CACHEING | |
338 | ||
339 | // --------------------------------------------------------------------------- | |
340 | // wxDC | |
341 | // --------------------------------------------------------------------------- | |
342 | ||
343 | wxDC::wxDC(void) | |
344 | { | |
345 | wxColour vColor; | |
346 | ||
347 | m_pCanvas = NULL; | |
348 | ||
349 | m_hOldBitmap = 0; | |
350 | m_hOldPen = 0; | |
351 | m_hOldBrush = 0; | |
352 | m_hOldFont = 0; | |
353 | m_hOldPalette = 0; | |
354 | ||
355 | m_bOwnsDC = FALSE; | |
356 | m_hDC = 0; | |
357 | m_hOldPS = NULL; | |
358 | m_hPS = NULL; | |
359 | m_bIsPaintTime = FALSE; // True at Paint Time | |
360 | ||
361 | vColor.InitFromName("BLACK"); | |
362 | m_pen.SetColour(vColor); | |
363 | vColor.Set("WHITE"); | |
364 | m_brush.SetColour(vColor); | |
365 | } // end of wxDC::wxDC | |
366 | ||
367 | wxDC::~wxDC(void) | |
368 | { | |
369 | if ( m_hDC != 0 ) | |
370 | { | |
371 | SelectOldObjects(m_hDC); | |
372 | ||
373 | // if we own the HDC, we delete it, otherwise we just release it | |
374 | ||
375 | if (m_bOwnsDC) | |
376 | { | |
377 | if(m_hPS) | |
378 | { | |
379 | ::GpiAssociate(m_hPS, NULLHANDLE); | |
380 | ::GpiDestroyPS(m_hPS); | |
381 | } | |
382 | m_hPS = NULLHANDLE; | |
383 | ::DevCloseDC((HDC)m_hDC); | |
384 | } | |
385 | else | |
386 | { | |
387 | // | |
388 | // Just Dissacociate, not destroy if we don't own the DC | |
389 | // | |
390 | if(m_hPS) | |
391 | { | |
392 | ::GpiAssociate(m_hPS, NULLHANDLE); | |
393 | } | |
394 | } | |
395 | } | |
396 | } // end of wxDC::~wxDC | |
397 | ||
398 | // This will select current objects out of the DC, | |
399 | // which is what you have to do before deleting the | |
400 | // DC. | |
401 | void wxDC::SelectOldObjects( | |
402 | WXHDC hPS | |
403 | ) | |
404 | { | |
405 | if (hPS) | |
406 | { | |
407 | if (m_hOldBitmap) | |
408 | { | |
409 | ::GpiSetBitmap(hPS, (HBITMAP) m_hOldBitmap); | |
410 | if (m_vSelectedBitmap.Ok()) | |
411 | { | |
412 | m_vSelectedBitmap.SetSelectedInto(NULL); | |
413 | } | |
414 | } | |
415 | m_hOldBitmap = 0; | |
416 | // | |
417 | // OS/2 has no other native GDI objects to set in a PS/DC like windows | |
418 | // | |
419 | m_hOldPen = 0; | |
420 | m_hOldBrush = 0; | |
421 | m_hOldFont = 0; | |
422 | m_hOldPalette = 0; | |
423 | } | |
424 | ||
425 | m_brush = wxNullBrush; | |
426 | m_pen = wxNullPen; | |
427 | m_palette = wxNullPalette; | |
428 | m_font = wxNullFont; | |
429 | m_backgroundBrush = wxNullBrush; | |
430 | m_vSelectedBitmap = wxNullBitmap; | |
431 | } // end of wxDC::SelectOldObjects | |
432 | ||
433 | // --------------------------------------------------------------------------- | |
434 | // clipping | |
435 | // --------------------------------------------------------------------------- | |
436 | ||
437 | #define DO_SET_CLIPPING_BOX() \ | |
438 | { \ | |
439 | RECTL rect; \ | |
440 | \ | |
441 | ::GpiQueryClipBox(m_hPS, &rect); \ | |
442 | \ | |
443 | m_clipX1 = (wxCoord) XDEV2LOG(rect.xLeft); \ | |
444 | m_clipY1 = (wxCoord) YDEV2LOG(rect.yTop); \ | |
445 | m_clipX2 = (wxCoord) XDEV2LOG(rect.xRight); \ | |
446 | m_clipY2 = (wxCoord) YDEV2LOG(rect.yBottom); \ | |
447 | } | |
448 | ||
449 | void wxDC::DoSetClippingRegion( | |
450 | wxCoord vX | |
451 | , wxCoord vY | |
452 | , wxCoord vWidth | |
453 | , wxCoord vHeight | |
454 | ) | |
455 | { | |
456 | RECTL vRect; | |
457 | ||
458 | vY = OS2Y(vY,vHeight); | |
459 | m_clipping = TRUE; | |
460 | vRect.xLeft = vX; | |
461 | vRect.yTop = vY + vHeight; | |
462 | vRect.xRight = vX + vWidth; | |
463 | vRect.yBottom = vY; | |
464 | ::GpiIntersectClipRectangle(m_hPS, &vRect); | |
465 | DO_SET_CLIPPING_BOX() | |
466 | } // end of wxDC::DoSetClippingRegion | |
467 | ||
468 | void wxDC::DoSetClippingRegionAsRegion( | |
469 | const wxRegion& rRegion | |
470 | ) | |
471 | { | |
472 | wxCHECK_RET(rRegion.GetHRGN(), wxT("invalid clipping region")); | |
473 | HRGN hRgnOld; | |
474 | ||
475 | m_clipping = TRUE; | |
476 | ::GpiSetClipRegion( m_hPS | |
477 | ,(HRGN)rRegion.GetHRGN() | |
478 | ,&hRgnOld | |
479 | ); | |
480 | DO_SET_CLIPPING_BOX() | |
481 | } // end of wxDC::DoSetClippingRegionAsRegion | |
482 | ||
483 | void wxDC::DestroyClippingRegion(void) | |
484 | { | |
485 | if (m_clipping && m_hPS) | |
486 | { | |
487 | HRGN hRgnOld; | |
488 | RECTL vRect; | |
489 | ||
490 | // TODO: this should restore the previous clipped region | |
491 | // so that OnPaint processing works correctly, and | |
492 | // the update doesn't get destroyed after the first | |
493 | // DestroyClippingRegion | |
494 | vRect.xLeft = XLOG2DEV(0); | |
495 | vRect.yTop = YLOG2DEV(32000); | |
496 | vRect.xRight = XLOG2DEV(32000); | |
497 | vRect.yBottom = YLOG2DEV(0); | |
498 | ||
499 | HRGN hRgn = ::GpiCreateRegion(m_hPS, 1, &vRect); | |
500 | ||
501 | ::GpiSetClipRegion(m_hPS, hRgn, &hRgnOld); | |
502 | } | |
503 | m_clipping = FALSE; | |
504 | } // end of wxDC::DestroyClippingRegion | |
505 | ||
506 | // --------------------------------------------------------------------------- | |
507 | // query capabilities | |
508 | // --------------------------------------------------------------------------- | |
509 | ||
510 | bool wxDC::CanDrawBitmap() const | |
511 | { | |
512 | return TRUE; | |
513 | } | |
514 | ||
515 | bool wxDC::CanGetTextExtent() const | |
516 | { | |
517 | LONG lTechnology = 0L; | |
518 | ||
519 | ::DevQueryCaps(GetHDC(), CAPS_TECHNOLOGY, 1L, &lTechnology); | |
520 | return (lTechnology == CAPS_TECH_RASTER_DISPLAY) || (lTechnology == CAPS_TECH_RASTER_PRINTER); | |
521 | } // end of wxDC::CanGetTextExtent | |
522 | ||
523 | int wxDC::GetDepth() const | |
524 | { | |
525 | LONG lArray[CAPS_COLOR_BITCOUNT]; | |
526 | int nBitsPerPixel; | |
527 | ||
528 | if(::DevQueryCaps( GetHDC() | |
529 | ,CAPS_FAMILY | |
530 | ,CAPS_COLOR_BITCOUNT | |
531 | ,lArray | |
532 | )) | |
533 | { | |
534 | nBitsPerPixel = (int)lArray[CAPS_COLOR_BITCOUNT]; | |
535 | } | |
536 | return nBitsPerPixel; | |
537 | } // end of wxDC::GetDepth | |
538 | ||
539 | // --------------------------------------------------------------------------- | |
540 | // drawing | |
541 | // --------------------------------------------------------------------------- | |
542 | ||
543 | void wxDC::Clear() | |
544 | { | |
545 | // | |
546 | // If this is a canvas DC then just fill with the background color | |
547 | // Otherwise purge the whole thing | |
548 | // | |
549 | if (m_pCanvas) | |
550 | { | |
551 | RECTL vRect; | |
552 | ||
553 | ::GpiQueryClipBox(m_hPS, &vRect); | |
554 | ::WinFillRect(m_hPS, &vRect, ::GpiQueryBackColor(m_hPS)); | |
555 | } | |
556 | else | |
557 | ::GpiErase(m_hPS); | |
558 | } // end of wxDC::Clear | |
559 | ||
560 | void wxDC::DoFloodFill( | |
561 | wxCoord vX | |
562 | , wxCoord vY | |
563 | , const wxColour& rCol | |
564 | , int nStyle | |
565 | ) | |
566 | { | |
567 | POINTL vPtlPos; | |
568 | LONG lColor; | |
569 | LONG lOptions; | |
570 | ||
571 | vPtlPos.x = vX; // Loads x-coordinate | |
572 | vPtlPos.y = OS2Y(vY,0); // Loads y-coordinate | |
573 | ::GpiMove(m_hPS, &vPtlPos); // Sets current position | |
574 | lColor = rCol.GetPixel(); | |
575 | lOptions = FF_BOUNDARY; | |
576 | if(wxFLOOD_SURFACE == nStyle) | |
577 | lOptions = FF_SURFACE; | |
578 | ||
579 | ::GpiFloodFill(m_hPS, lOptions, lColor); | |
580 | } // end of wxDC::DoFloodFill | |
581 | ||
582 | bool wxDC::DoGetPixel( | |
583 | wxCoord vX | |
584 | , wxCoord vY | |
585 | , wxColour* pCol | |
586 | ) const | |
587 | { | |
588 | POINTL vPoint; | |
589 | LONG lColor; | |
590 | ||
591 | vPoint.x = vX; | |
592 | vPoint.y = OS2Y(vY,0); | |
593 | lColor = ::GpiSetPel(m_hPS, &vPoint); | |
594 | ||
595 | // | |
596 | // Get the color of the pen | |
597 | // | |
598 | LONG lPencolor = 0x00ffffff; | |
599 | ||
600 | if (m_pen.Ok()) | |
601 | { | |
602 | lPencolor = m_pen.GetColour().GetPixel(); | |
603 | } | |
604 | ||
605 | // | |
606 | // return the color of the pixel | |
607 | // | |
608 | if(pCol) | |
609 | pCol->Set( GetRValue(lColor) | |
610 | ,GetGValue(lColor) | |
611 | ,GetBValue(lColor) | |
612 | ); | |
613 | return(lColor == lPencolor); | |
614 | } // end of wxDC::DoGetPixel | |
615 | ||
616 | void wxDC::DoCrossHair( | |
617 | wxCoord vX | |
618 | , wxCoord vY | |
619 | ) | |
620 | { | |
621 | vY = OS2Y(vY,0); | |
622 | ||
623 | wxCoord vX1 = vX - VIEWPORT_EXTENT; | |
624 | wxCoord vY1 = vY - VIEWPORT_EXTENT; | |
625 | wxCoord vX2 = vX + VIEWPORT_EXTENT; | |
626 | wxCoord vY2 = vY + VIEWPORT_EXTENT; | |
627 | POINTL vPoint[4]; | |
628 | ||
629 | vPoint[0].x = vX1; | |
630 | vPoint[0].y = vY; | |
631 | ||
632 | vPoint[1].x = vX2; | |
633 | vPoint[1].y = vY; | |
634 | ||
635 | ::GpiMove(m_hPS, &vPoint[0]); | |
636 | ::GpiLine(m_hPS, &vPoint[1]); | |
637 | ||
638 | vPoint[2].x = vX; | |
639 | vPoint[2].y = vY1; | |
640 | ||
641 | vPoint[3].x = vX; | |
642 | vPoint[3].y = vY2; | |
643 | ||
644 | ::GpiMove(m_hPS, &vPoint[2]); | |
645 | ::GpiLine(m_hPS, &vPoint[3]); | |
646 | CalcBoundingBox(vX1, vY1); | |
647 | CalcBoundingBox(vX2, vY2); | |
648 | } // end of wxDC::DoCrossHair | |
649 | ||
650 | void wxDC::DoDrawLine( | |
651 | wxCoord vX1 | |
652 | , wxCoord vY1 | |
653 | , wxCoord vX2 | |
654 | , wxCoord vY2 | |
655 | ) | |
656 | { | |
657 | POINTL vPoint[2]; | |
658 | ||
659 | vY1 = OS2Y(vY1,0); | |
660 | vY2 = OS2Y(vY2,0); | |
661 | ||
662 | vPoint[0].x = vX1; | |
663 | vPoint[0].y = vY1; | |
664 | vPoint[1].x = vX2; | |
665 | vPoint[1].y = vY2; | |
666 | ::GpiMove(m_hPS, &vPoint[0]); | |
667 | ::GpiLine(m_hPS, &vPoint[1]); | |
668 | CalcBoundingBox(vX1, vY1); | |
669 | CalcBoundingBox(vX2, vY2); | |
670 | } // end of wxDC::DoDrawLine | |
671 | ||
672 | ////////////////////////////////////////////////////////////////////////////// | |
673 | // Draws an arc of a circle, centred on (xc, yc), with starting point (x1, y1) | |
674 | // and ending at (x2, y2). The current pen is used for the outline and the | |
675 | // current brush for filling the shape. The arc is drawn in an anticlockwise | |
676 | // direction from the start point to the end point. | |
677 | ////////////////////////////////////////////////////////////////////////////// | |
678 | void wxDC::DoDrawArc( | |
679 | wxCoord vX1 | |
680 | , wxCoord vY1 | |
681 | , wxCoord vX2 | |
682 | , wxCoord vY2 | |
683 | , wxCoord vXc | |
684 | , wxCoord vYc | |
685 | ) | |
686 | { | |
687 | POINTL vPtlPos; | |
688 | POINTL vPtlArc[2]; // Structure for current position | |
689 | int nDx; | |
690 | int nDy; | |
691 | double dRadius; | |
692 | double dAngl1; | |
693 | double dAngl2; | |
694 | double dAnglmid; | |
695 | wxCoord vXm; | |
696 | wxCoord vYm; | |
697 | ARCPARAMS vArcp; // Structure for arc parameters | |
698 | ||
699 | if((vX1 == vXc && vY1 == vXc) || (vX2 == vXc && vY2 == vXc)) | |
700 | return; // Draw point ?? | |
701 | dRadius = 0.5 * ( hypot( (double)(vY1 - vYc) | |
702 | ,(double)(vX1 - vXc) | |
703 | ) + | |
704 | hypot( (double)(vY2 - vYc) | |
705 | ,(double)(vX2 - vXc) | |
706 | ) | |
707 | ); | |
708 | ||
709 | dAngl1 = atan2( (double)(vY1 - vYc) | |
710 | ,(double)(vX1 - vXc) | |
711 | ); | |
712 | dAngl2 = atan2( (double)(vY2 - vYc) | |
713 | ,(double)(vX2 - vXc) | |
714 | ); | |
715 | if(dAngl2 < dAngl1) | |
716 | dAngl2 += M_PI * 2; | |
717 | ||
718 | // | |
719 | // GpiPointArc can't draw full arc | |
720 | // | |
721 | if(dAngl2 == dAngl1 || (vX1 == vX2 && vY1 == vY2) ) | |
722 | { | |
723 | // | |
724 | // Medium point | |
725 | // | |
726 | dAnglmid = (dAngl1 + dAngl2)/2. + M_PI; | |
727 | vXm = vXc + dRadius * cos(dAnglmid); | |
728 | vYm = vYc + dRadius * sin(dAnglmid); | |
729 | DoDrawArc( vX1, vY1 | |
730 | ,vXm, vYm | |
731 | ,vXc, vYc | |
732 | ); | |
733 | DoDrawArc( vXm, vYm | |
734 | ,vX2, vY2 | |
735 | ,vXc, vYc | |
736 | ); | |
737 | return; | |
738 | } | |
739 | ||
740 | // | |
741 | // Medium point | |
742 | // | |
743 | dAnglmid = (dAngl1 + dAngl2)/2.; | |
744 | vXm = vXc + dRadius * cos(dAnglmid); | |
745 | vYm = vYc + dRadius * sin(dAnglmid); | |
746 | ||
747 | // | |
748 | // Ellipse main axis (r,q), (p,s) with center at (0,0) */ | |
749 | // | |
750 | vArcp.lR = 0; | |
751 | vArcp.lQ = 1; | |
752 | vArcp.lP = 1; | |
753 | vArcp.lS = 0; | |
754 | ::GpiSetArcParams(m_hPS, &vArcp); // Sets parameters to default | |
755 | ||
756 | vPtlPos.x = vX1; // Loads x-coordinate | |
757 | vPtlPos.y = vY1; // Loads y-coordinate | |
758 | ::GpiMove(m_hPS, &vPtlPos); // Sets current position | |
759 | vPtlArc[0].x = vXm; | |
760 | vPtlArc[0].y = vYm; | |
761 | vPtlArc[1].x = vX2; | |
762 | vPtlArc[1].y = vY2; | |
763 | ::GpiPointArc(m_hPS, vPtlArc); // Draws the arc | |
764 | CalcBoundingBox( (vXc - dRadius) | |
765 | ,(vYc - dRadius) | |
766 | ); | |
767 | CalcBoundingBox( (vXc + dRadius) | |
768 | ,(vYc + dRadius) | |
769 | ); | |
770 | } // end of wxDC::DoDrawArc | |
771 | ||
772 | void wxDC::DoDrawCheckMark( | |
773 | wxCoord vX1 | |
774 | , wxCoord vY1 | |
775 | , wxCoord vWidth | |
776 | , wxCoord vHeight | |
777 | ) | |
778 | { | |
779 | POINTL vPoint[2]; | |
780 | ||
781 | vY1 = OS2Y(vY1,vHeight); | |
782 | ||
783 | vPoint[0].x = vX1; | |
784 | vPoint[0].y = vY1; | |
785 | vPoint[1].x = vX1 + vWidth; | |
786 | vPoint[1].y = vY1 + vHeight; | |
787 | ||
788 | ::GpiMove(m_hPS, &vPoint[0]); | |
789 | ::GpiBox( m_hPS // handle to a presentation space | |
790 | ,DRO_OUTLINE // draw the box outline ? or ? | |
791 | ,&vPoint[1] // address of the corner | |
792 | ,0L // horizontal corner radius | |
793 | ,0L // vertical corner radius | |
794 | ); | |
795 | if(vWidth > 4 && vHeight > 4) | |
796 | { | |
797 | int nTmp; | |
798 | ||
799 | vPoint[0].x += 2; vPoint[0].y += 2; | |
800 | vPoint[1].x -= 2; vPoint[1].y -= 2; | |
801 | ::GpiMove(m_hPS, &vPoint[0]); | |
802 | ::GpiLine(m_hPS, &vPoint[1]); | |
803 | nTmp = vPoint[0].x; | |
804 | vPoint[0].x = vPoint[1].x; | |
805 | vPoint[1].x = nTmp; | |
806 | ::GpiMove(m_hPS, &vPoint[0]); | |
807 | ::GpiLine(m_hPS, &vPoint[1]); | |
808 | } | |
809 | CalcBoundingBox( vX1 | |
810 | ,vY1 | |
811 | ); | |
812 | ||
813 | wxCoord vX2 = vX1 + vWidth; | |
814 | wxCoord vY2 = vY1 + vHeight; | |
815 | ||
816 | CalcBoundingBox( vX2 | |
817 | ,vY2 | |
818 | ); | |
819 | } // end of wxDC::DoDrawCheckMark | |
820 | ||
821 | void wxDC::DoDrawPoint( | |
822 | wxCoord vX | |
823 | , wxCoord vY | |
824 | ) | |
825 | { | |
826 | POINTL vPoint; | |
827 | COLORREF vColor = 0x00ffffff; | |
828 | ||
829 | if (m_pen.Ok()) | |
830 | { | |
831 | vColor = m_pen.GetColour().GetPixel(); | |
832 | } | |
833 | ::GpiSetColor(m_hPS, vColor); | |
834 | vPoint.x = vX; | |
835 | vPoint.y = OS2Y(vY,0); | |
836 | ::GpiSetPel(m_hPS, &vPoint); | |
837 | CalcBoundingBox( vX | |
838 | ,vY | |
839 | ); | |
840 | } // end of wxDC::DoDrawPoint | |
841 | ||
842 | void wxDC::DoDrawPolygon( | |
843 | int n | |
844 | , wxPoint vPoints[] | |
845 | , wxCoord vXoffset | |
846 | , wxCoord vYoffset | |
847 | , int nFillStyle | |
848 | ) | |
849 | { | |
850 | ULONG ulCount = 1; // Number of polygons. | |
851 | POLYGON vPlgn; // polygon. | |
852 | ULONG flOptions = 0L; // Drawing options. | |
853 | ||
854 | ////////////////////////////////////////////////////////////////////////////// | |
855 | // This contains fields of option bits... to draw boundary lines as well as | |
856 | // the area interior. | |
857 | // | |
858 | // Drawing boundary lines: | |
859 | // POLYGON_NOBOUNDARY Does not draw boundary lines. | |
860 | // POLYGON_BOUNDARY Draws boundary lines (the default). | |
861 | // | |
862 | // Construction of the area interior: | |
863 | // POLYGON_ALTERNATE Constructs interior in alternate mode | |
864 | // (the default). | |
865 | // POLYGON_WINDING Constructs interior in winding mode. | |
866 | ////////////////////////////////////////////////////////////////////////////// | |
867 | ||
868 | ULONG flModel = 0L; // Drawing model. | |
869 | ||
870 | ////////////////////////////////////////////////////////////////////////////// | |
871 | // Drawing model. | |
872 | // POLYGON_INCL Fill is inclusive of bottom right (the default). | |
873 | // POLYGON_EXCL Fill is exclusive of bottom right. | |
874 | // This is provided to aid migration from other graphics models. | |
875 | ////////////////////////////////////////////////////////////////////////////// | |
876 | ||
877 | LONG lHits = 0L; // Correlation/error indicator. | |
878 | POINTL vPoint; | |
879 | int i; | |
880 | int nIsTRANSPARENT = 0; | |
881 | LONG lBorderColor = 0L; | |
882 | LONG lColor = 0L; | |
883 | ||
884 | lBorderColor = m_pen.GetColour().GetPixel(); | |
885 | lColor = m_brush.GetColour().GetPixel(); | |
886 | if(m_brush.GetStyle() == wxTRANSPARENT) | |
887 | nIsTRANSPARENT = 1; | |
888 | ||
889 | vPlgn.ulPoints = n; | |
890 | vPlgn.aPointl = (POINTL*) calloc( n + 1 | |
891 | ,sizeof(POINTL) | |
892 | ); // well, new will call malloc | |
893 | ||
894 | for(i = 0; i < n; i++) | |
895 | { | |
896 | vPlgn.aPointl[i].x = vPoints[i].x; // +xoffset; | |
897 | vPlgn.aPointl[i].y = OS2Y(vPoints[i].y,0); // +yoffset; | |
898 | } | |
899 | flModel = POLYGON_BOUNDARY; | |
900 | if(nFillStyle == wxWINDING_RULE) | |
901 | flModel |= POLYGON_WINDING; | |
902 | else | |
903 | flModel |= POLYGON_ALTERNATE; | |
904 | ||
905 | vPoint.x = vXoffset; | |
906 | vPoint.y = OS2Y(vYoffset,0); | |
907 | ||
908 | ::GpiSetColor(m_hPS, lBorderColor); | |
909 | ::GpiMove(m_hPS, &vPoint); | |
910 | lHits = ::GpiPolygons(m_hPS, ulCount, &vPlgn, flOptions, flModel); | |
911 | free(vPlgn.aPointl); | |
912 | } // end of wxDC::DoDrawPolygon | |
913 | ||
914 | void wxDC::DoDrawLines( | |
915 | int n | |
916 | , wxPoint vPoints[] | |
917 | , wxCoord vXoffset | |
918 | , wxCoord vYoffset | |
919 | ) | |
920 | { | |
921 | POINTL vPoint; | |
922 | ||
923 | if (vXoffset != 0L || vXoffset != 0L) | |
924 | { | |
925 | int i; | |
926 | ||
927 | vPoint.x = vPoints[0].x + vXoffset; | |
928 | vPoint.y = OS2Y(vPoints[0].y + vYoffset,0); | |
929 | ::GpiMove(m_hPS, &vPoint); | |
930 | ||
931 | LONG lBorderColor = m_pen.GetColour().GetPixel(); | |
932 | ||
933 | ::GpiSetColor(m_hPS, lBorderColor); | |
934 | for(i = 1; i < n; i++) | |
935 | { | |
936 | vPoint.x = vPoints[i].x + vXoffset; | |
937 | vPoint.y = OS2Y(vPoints[i].y + vYoffset,0); | |
938 | ::GpiLine(m_hPS, &vPoint); | |
939 | } | |
940 | } | |
941 | else | |
942 | { | |
943 | int i; | |
944 | ||
945 | CalcBoundingBox( vPoints[i].x | |
946 | ,vPoints[i].y | |
947 | ); | |
948 | vPoint.x = vPoints[0].x; | |
949 | vPoint.y = OS2Y(vPoints[0].y,0); | |
950 | ::GpiMove(m_hPS, &vPoint); | |
951 | ||
952 | for (i = 0; i < n; i++) | |
953 | { | |
954 | CalcBoundingBox( vPoints[i].x | |
955 | ,vPoints[i].y | |
956 | ); | |
957 | vPoint.x = vPoints[i].x; | |
958 | vPoint.y = OS2Y(vPoints[i].y,0); | |
959 | ::GpiLine(m_hPS, &vPoint); | |
960 | } | |
961 | } | |
962 | } // end of wxDC::DoDrawLines | |
963 | ||
964 | void wxDC::DoDrawRectangle( | |
965 | wxCoord vX | |
966 | , wxCoord vY | |
967 | , wxCoord vWidth | |
968 | , wxCoord vHeight | |
969 | ) | |
970 | { | |
971 | POINTL vPoint[2]; | |
972 | LONG lControl; | |
973 | LONG lColor; | |
974 | LONG lBorderColor; | |
975 | int nIsTRANSPARENT = 0; | |
976 | ||
977 | vY = OS2Y(vY,vHeight); | |
978 | ||
979 | wxCoord vX2 = vX + vWidth; | |
980 | wxCoord vY2 = vY + vHeight; | |
981 | ||
982 | vPoint[0].x = vX; | |
983 | vPoint[0].y = vY; | |
984 | vPoint[1].x = vX + vWidth; | |
985 | vPoint[1].y = vY + vHeight; | |
986 | ::GpiMove(m_hPS, &vPoint[0]); | |
987 | lColor = m_brush.GetColour().GetPixel(); | |
988 | lBorderColor = m_pen.GetColour().GetPixel(); | |
989 | if (m_brush.GetStyle() == wxTRANSPARENT) | |
990 | nIsTRANSPARENT = 1; | |
991 | if(lColor == lBorderColor || nIsTRANSPARENT) | |
992 | { | |
993 | lControl = DRO_OUTLINEFILL; //DRO_FILL; | |
994 | if(m_brush.GetStyle() == wxTRANSPARENT) | |
995 | lControl = DRO_OUTLINE; | |
996 | ||
997 | ::GpiSetColor(m_hPS, lColor); | |
998 | ::GpiBox( m_hPS // handle to a presentation space | |
999 | ,lControl // draw the box outline ? or ? | |
1000 | ,&vPoint[1] // address of the corner | |
1001 | ,0L // horizontal corner radius | |
1002 | ,0L // vertical corner radius | |
1003 | ); | |
1004 | } | |
1005 | else | |
1006 | { | |
1007 | lControl = DRO_OUTLINE; | |
1008 | ::GpiSetColor( m_hPS | |
1009 | ,lBorderColor | |
1010 | ); | |
1011 | ::GpiBox( m_hPS | |
1012 | ,lControl | |
1013 | ,&vPoint[1] | |
1014 | ,0L | |
1015 | ,0L | |
1016 | ); | |
1017 | lControl = DRO_FILL; | |
1018 | ::GpiSetColor( m_hPS | |
1019 | ,lColor | |
1020 | ); | |
1021 | vPoint[0].x = vX + 1; | |
1022 | vPoint[0].y = vY + 1; | |
1023 | vPoint[1].x = vX + vWidth - 1; | |
1024 | vPoint[1].y = vY + vHeight - 1; | |
1025 | ::GpiMove(m_hPS, &vPoint[0]); | |
1026 | ::GpiBox( m_hPS | |
1027 | ,lControl | |
1028 | ,&vPoint[1] | |
1029 | ,0L | |
1030 | ,0L | |
1031 | ); | |
1032 | } | |
1033 | CalcBoundingBox(vX, vY); | |
1034 | CalcBoundingBox(vX2, vY2); | |
1035 | } // end of wxDC::DoDrawRectangle | |
1036 | ||
1037 | void wxDC::DoDrawRoundedRectangle( | |
1038 | wxCoord vX | |
1039 | , wxCoord vY | |
1040 | , wxCoord vWidth | |
1041 | , wxCoord vHeight | |
1042 | , double dRadius | |
1043 | ) | |
1044 | { | |
1045 | POINTL vPoint[2]; | |
1046 | LONG lControl; | |
1047 | ||
1048 | vY = OS2Y(vY,vHeight); | |
1049 | ||
1050 | wxCoord vX2 = (vX + vWidth); | |
1051 | wxCoord vY2 = (vY + vHeight); | |
1052 | ||
1053 | vPoint[0].x = vX; | |
1054 | vPoint[0].y = YLOG2DEV(vY) - vHeight; | |
1055 | vPoint[1].x = vX + vWidth; | |
1056 | vPoint[1].y = vY; | |
1057 | ::GpiMove(m_hPS, &vPoint[0]); | |
1058 | ||
1059 | lControl = DRO_OUTLINEFILL; //DRO_FILL; | |
1060 | if (m_brush.GetStyle() == wxTRANSPARENT) | |
1061 | lControl = DRO_OUTLINE; | |
1062 | ::GpiBox( m_hPS // handle to a presentation space | |
1063 | ,DRO_OUTLINE // draw the box outline ? or ? | |
1064 | ,&vPoint[1] // address of the corner | |
1065 | ,(LONG)dRadius // horizontal corner radius | |
1066 | ,(LONG)dRadius // vertical corner radius | |
1067 | ); | |
1068 | CalcBoundingBox(vX, vY); | |
1069 | CalcBoundingBox(vX2, vY2); | |
1070 | } // end of wxDC::DoDrawRoundedRectangle | |
1071 | ||
1072 | // Draw Ellipse within box (x,y) - (x+width, y+height) | |
1073 | void wxDC::DoDrawEllipse( | |
1074 | wxCoord vX | |
1075 | , wxCoord vY | |
1076 | , wxCoord vWidth | |
1077 | , wxCoord vHeight | |
1078 | ) | |
1079 | { | |
1080 | POINTL vPtlPos; // Structure for current position | |
1081 | FIXED vFxMult; // Multiplier for ellipse | |
1082 | ARCPARAMS vArcp; // Structure for arc parameters | |
1083 | ||
1084 | vY = OS2Y(vY,vHeight); | |
1085 | ||
1086 | vArcp.lR = 0; | |
1087 | vArcp.lQ = vHeight/2; | |
1088 | vArcp.lP = vWidth/2; | |
1089 | vArcp.lS = 0; | |
1090 | ::GpiSetArcParams( m_hPS | |
1091 | ,&vArcp | |
1092 | ); // Sets parameters to default | |
1093 | vPtlPos.x = vX + vWidth/2; // Loads x-coordinate | |
1094 | vPtlPos.y = vY + vHeight/2; // Loads y-coordinate | |
1095 | ::GpiMove( m_hPS | |
1096 | ,&vPtlPos | |
1097 | ); // Sets current position | |
1098 | vFxMult = MAKEFIXED(1, 0); /* Sets multiplier */ | |
1099 | ||
1100 | // | |
1101 | // DRO_FILL, DRO_OTLINEFILL - where to get | |
1102 | // | |
1103 | ::GpiFullArc( m_hPS | |
1104 | ,DRO_OUTLINE | |
1105 | ,vFxMult | |
1106 | ); // Draws full arc with center at current position | |
1107 | ||
1108 | wxCoord vX2 = (vX + vWidth); | |
1109 | wxCoord vY2 = (vY + vHeight); | |
1110 | ||
1111 | CalcBoundingBox(vX, vY); | |
1112 | CalcBoundingBox(vX2, vY2); | |
1113 | } // end of wxDC::DoDrawEllipse | |
1114 | ||
1115 | void wxDC::DoDrawEllipticArc( | |
1116 | wxCoord vX | |
1117 | , wxCoord vY | |
1118 | , wxCoord vWidth | |
1119 | , wxCoord vHeight | |
1120 | , double dSa | |
1121 | , double dEa | |
1122 | ) | |
1123 | { | |
1124 | POINTL vPtlPos; // Structure for current position | |
1125 | FIXED vFxMult; // Multiplier for ellipse | |
1126 | ARCPARAMS vArcp; // Structure for arc parameters | |
1127 | FIXED vFSa; | |
1128 | FIXED vFSweepa; // Start angle, sweep angle | |
1129 | double dIntPart; | |
1130 | double dFractPart; | |
1131 | double dRadius; | |
1132 | ||
1133 | vY = OS2Y(vY,vHeight); | |
1134 | ||
1135 | dFractPart = modf(dSa,&dIntPart); | |
1136 | vFSa = MAKEFIXED((int)dIntPart, (int)(dFractPart * 0xffff) ); | |
1137 | dFractPart = modf(dEa - dSa, &dIntPart); | |
1138 | vFSweepa = MAKEFIXED((int)dIntPart, (int)(dFractPart * 0xffff) ); | |
1139 | ||
1140 | // | |
1141 | // Ellipse main axis (r,q), (p,s) with center at (0,0) | |
1142 | // | |
1143 | vArcp.lR = 0; | |
1144 | vArcp.lQ = vHeight/2; | |
1145 | vArcp.lP = vWidth/2; | |
1146 | vArcp.lS = 0; | |
1147 | ::GpiSetArcParams(m_hPS, &vArcp); // Sets parameters to default | |
1148 | vPtlPos.x = vX + vWidth/2 * (1. + cos(DegToRad(dSa))); // Loads x-coordinate | |
1149 | vPtlPos.y = vY + vHeight/2 * (1. + sin(DegToRad(dSa))); // Loads y-coordinate | |
1150 | ::GpiMove(m_hPS, &vPtlPos); // Sets current position | |
1151 | ||
1152 | // | |
1153 | // May be not to the center ? | |
1154 | // | |
1155 | vPtlPos.x = vX + vWidth/2 ; // Loads x-coordinate | |
1156 | vPtlPos.y = vY + vHeight/2; // Loads y-coordinate | |
1157 | vFxMult = MAKEFIXED(1, 0); // Sets multiplier | |
1158 | ||
1159 | // | |
1160 | // DRO_FILL, DRO_OTLINEFILL - where to get | |
1161 | // | |
1162 | ::GpiPartialArc( m_hPS | |
1163 | ,&vPtlPos | |
1164 | ,vFxMult | |
1165 | ,vFSa | |
1166 | ,vFSweepa | |
1167 | ); | |
1168 | wxCoord vX2 = (vX + vWidth); | |
1169 | wxCoord vY2 = (vY + vHeight); | |
1170 | ||
1171 | CalcBoundingBox(vX, vY); | |
1172 | CalcBoundingBox(vX2, vY2); | |
1173 | } // end of wxDC::DoDrawEllipticArc | |
1174 | ||
1175 | void wxDC::DoDrawIcon( | |
1176 | const wxIcon& rIcon | |
1177 | , wxCoord vX | |
1178 | , wxCoord vY | |
1179 | ) | |
1180 | { | |
1181 | vY = OS2Y(vY,rIcon.GetHeight()); | |
1182 | wxCHECK_RET( rIcon.Ok(), wxT("invalid icon in DrawIcon") ); | |
1183 | ||
1184 | ::WinDrawPointer( GetHPS() | |
1185 | ,vX | |
1186 | ,vY | |
1187 | ,(HPOINTER)GetHiconOf(rIcon) | |
1188 | ,DP_NORMAL | |
1189 | ); | |
1190 | CalcBoundingBox(vX, vY); | |
1191 | CalcBoundingBox(vX + rIcon.GetWidth(), vY + rIcon.GetHeight()); | |
1192 | } // end of wxDC::DoDrawIcon | |
1193 | ||
1194 | void wxDC::DoDrawBitmap( | |
1195 | const wxBitmap& rBmp | |
1196 | , wxCoord vX | |
1197 | , wxCoord vY | |
1198 | , bool bUseMask | |
1199 | ) | |
1200 | { | |
1201 | POINTL vPoint = {vX, vY}; | |
1202 | ||
1203 | ::WinDrawBitmap( GetHPS() | |
1204 | ,(HBITMAP)GetHbitmapOf(rBmp) | |
1205 | ,NULL | |
1206 | ,&vPoint | |
1207 | ,0L | |
1208 | ,0L | |
1209 | ,DBM_NORMAL | |
1210 | ); | |
1211 | } // end of wxDC::DoDrawBitmap | |
1212 | ||
1213 | void wxDC::DoDrawText( | |
1214 | const wxString& rsText | |
1215 | , wxCoord vX | |
1216 | , wxCoord vY | |
1217 | ) | |
1218 | { | |
1219 | wxCoord vWidth; | |
1220 | wxCoord vHeight; | |
1221 | ||
1222 | DrawAnyText( rsText | |
1223 | ,vX | |
1224 | ,vY | |
1225 | ); | |
1226 | ||
1227 | CalcBoundingBox(vX, vY); | |
1228 | GetTextExtent(rsText, &vWidth, &vHeight); | |
1229 | CalcBoundingBox((vX + vWidth), (vY + vHeight)); | |
1230 | } // end of wxDC::DoDrawText | |
1231 | ||
1232 | void wxDC::DrawAnyText( | |
1233 | const wxString& rsText | |
1234 | , wxCoord vX | |
1235 | , wxCoord vY | |
1236 | ) | |
1237 | { | |
1238 | int nOldBackground = 0; | |
1239 | POINTL vPtlStart; | |
1240 | LONG lHits; | |
1241 | wxCoord vTextX = 0; | |
1242 | wxCoord vTextY = 0; | |
1243 | ||
1244 | // | |
1245 | // prepare for drawing the text | |
1246 | // | |
1247 | ||
1248 | // | |
1249 | // Set text color attributes | |
1250 | // | |
1251 | if (m_textForegroundColour.Ok()) | |
1252 | { | |
1253 | SetTextColor( m_hPS | |
1254 | ,(int)m_textForegroundColour.GetPixel() | |
1255 | ); | |
1256 | } | |
1257 | ||
1258 | if (m_textBackgroundColour.Ok()) | |
1259 | { | |
1260 | nOldBackground = SetTextBkColor( m_hPS | |
1261 | ,(int)m_textBackgroundColour.GetPixel() | |
1262 | ); | |
1263 | } | |
1264 | SetBkMode( m_hPS | |
1265 | ,m_backgroundMode | |
1266 | ); | |
1267 | GetTextExtent( rsText | |
1268 | ,&vTextX | |
1269 | ,&vTextY | |
1270 | ); | |
1271 | vPtlStart.x = vX; | |
1272 | vPtlStart.y = OS2Y(vY,vTextY); | |
1273 | ||
1274 | lHits = ::GpiCharStringAt( m_hPS | |
1275 | ,&vPtlStart | |
1276 | ,rsText.length() | |
1277 | ,(PCH)rsText.c_str() | |
1278 | ); | |
1279 | if (lHits != GPI_OK) | |
1280 | { | |
1281 | wxLogLastError(wxT("TextOut")); | |
1282 | } | |
1283 | ||
1284 | // | |
1285 | // Restore the old parameters (text foreground colour may be left because | |
1286 | // it never is set to anything else, but background should remain | |
1287 | // transparent even if we just drew an opaque string) | |
1288 | // | |
1289 | if (m_textBackgroundColour.Ok()) | |
1290 | SetTextBkColor( m_hPS | |
1291 | ,nOldBackground | |
1292 | ); | |
1293 | SetBkMode( m_hPS | |
1294 | ,wxTRANSPARENT | |
1295 | ); | |
1296 | } | |
1297 | ||
1298 | void wxDC::DoDrawRotatedText( | |
1299 | const wxString& rsText | |
1300 | , wxCoord vX | |
1301 | , wxCoord vY | |
1302 | , double dAngle | |
1303 | ) | |
1304 | { | |
1305 | if (dAngle == 0.0) | |
1306 | { | |
1307 | DoDrawText( rsText | |
1308 | ,vX | |
1309 | ,vY | |
1310 | ); | |
1311 | } | |
1312 | ||
1313 | // TODO: | |
1314 | /* | |
1315 | if ( angle == 0.0 ) | |
1316 | { | |
1317 | DoDrawText(text, x, y); | |
1318 | } | |
1319 | else | |
1320 | { | |
1321 | LOGFONT lf; | |
1322 | wxFillLogFont(&lf, &m_font); | |
1323 | ||
1324 | // GDI wants the angle in tenth of degree | |
1325 | long angle10 = (long)(angle * 10); | |
1326 | lf.lfEscapement = angle10; | |
1327 | lf. lfOrientation = angle10; | |
1328 | ||
1329 | HFONT hfont = ::CreateFontIndirect(&lf); | |
1330 | if ( !hfont ) | |
1331 | { | |
1332 | wxLogLastError("CreateFont"); | |
1333 | } | |
1334 | else | |
1335 | { | |
1336 | HFONT hfontOld = ::SelectObject(GetHdc(), hfont); | |
1337 | ||
1338 | DrawAnyText(text, x, y); | |
1339 | ||
1340 | (void)::SelectObject(GetHdc(), hfontOld); | |
1341 | } | |
1342 | ||
1343 | // call the bounding box by adding all four vertices of the rectangle | |
1344 | // containing the text to it (simpler and probably not slower than | |
1345 | // determining which of them is really topmost/leftmost/...) | |
1346 | wxCoord w, h; | |
1347 | GetTextExtent(text, &w, &h); | |
1348 | ||
1349 | double rad = DegToRad(angle); | |
1350 | ||
1351 | // "upper left" and "upper right" | |
1352 | CalcBoundingBox(x, y); | |
1353 | CalcBoundingBox(x + w*cos(rad), y - h*sin(rad)); | |
1354 | CalcBoundingBox(x + h*sin(rad), y + h*cos(rad)); | |
1355 | ||
1356 | // "bottom left" and "bottom right" | |
1357 | x += (wxCoord)(h*sin(rad)); | |
1358 | y += (wxCoord)(h*cos(rad)); | |
1359 | CalcBoundingBox(x, y); | |
1360 | CalcBoundingBox(x + h*sin(rad), y + h*cos(rad)); | |
1361 | } | |
1362 | */ | |
1363 | } | |
1364 | ||
1365 | // --------------------------------------------------------------------------- | |
1366 | // set GDI objects | |
1367 | // --------------------------------------------------------------------------- | |
1368 | ||
1369 | void wxDC::DoSelectPalette( | |
1370 | bool bRealize | |
1371 | ) | |
1372 | { | |
1373 | // | |
1374 | // Set the old object temporarily, in case the assignment deletes an object | |
1375 | // that's not yet selected out. | |
1376 | // | |
1377 | if (m_hOldPalette) | |
1378 | { | |
1379 | m_hOldPalette = 0; | |
1380 | } | |
1381 | ||
1382 | if (m_palette.Ok()) | |
1383 | { | |
1384 | HPALETTE hOldPal; | |
1385 | ||
1386 | hOldPal = ::GpiSelectPalette((HDC) m_hPS, (HPALETTE) m_palette.GetHPALETTE()); | |
1387 | if (!m_hOldPalette) | |
1388 | m_hOldPalette = (WXHPALETTE)hOldPal; | |
1389 | } | |
1390 | } // end of wxDC::DoSelectPalette | |
1391 | ||
1392 | void wxDC::InitializePalette() | |
1393 | { | |
1394 | if (wxDisplayDepth() <= 8 ) | |
1395 | { | |
1396 | // | |
1397 | // Look for any window or parent that has a custom palette. If any has | |
1398 | // one then we need to use it in drawing operations | |
1399 | // | |
1400 | wxWindow* pWin = m_pCanvas->GetAncestorWithCustomPalette(); | |
1401 | ||
1402 | m_hasCustomPalette = pWin && pWin->HasCustomPalette(); | |
1403 | if (m_hasCustomPalette) | |
1404 | { | |
1405 | m_palette = pWin->GetPalette(); | |
1406 | ||
1407 | // | |
1408 | // turn on PM translation for this palette | |
1409 | // | |
1410 | DoSelectPalette(); | |
1411 | } | |
1412 | } | |
1413 | } // end of wxDC::InitializePalette | |
1414 | ||
1415 | void wxDC::SetPalette( | |
1416 | const wxPalette& rPalette | |
1417 | ) | |
1418 | { | |
1419 | if (m_hOldFont) | |
1420 | { | |
1421 | m_hOldFont = 0; | |
1422 | } | |
1423 | m_palette = rPalette; | |
1424 | if (!rPalette.Ok()) | |
1425 | { | |
1426 | if (m_hOldFont) | |
1427 | { | |
1428 | m_hOldFont = 0; | |
1429 | } | |
1430 | } | |
1431 | HPALETTE hOldPal = ::GpiSelectPalette((HDC) m_hPS, (HPALETTE) m_palette.GetHPALETTE()); | |
1432 | if (!m_hOldPalette) | |
1433 | m_hOldPalette = (WXHPALETTE)hOldPal; | |
1434 | } // end of wxDC::SetPalette | |
1435 | ||
1436 | void wxDC::SetFont( | |
1437 | const wxFont& rFont | |
1438 | ) | |
1439 | { | |
1440 | // | |
1441 | // Set the old object temporarily, in case the assignment deletes an object | |
1442 | // that's not yet selected out. | |
1443 | // | |
1444 | if (m_hOldFont) | |
1445 | { | |
1446 | m_hOldFont = 0; | |
1447 | } | |
1448 | m_font = rFont; | |
1449 | if (!rFont.Ok()) | |
1450 | { | |
1451 | m_hOldFont = 0; | |
1452 | } | |
1453 | ||
1454 | m_font.SetPS(m_hPS); // this will realize the font | |
1455 | ||
1456 | if (m_font.Ok()) | |
1457 | { | |
1458 | HFONT hFont = m_font.GetResourceHandle(); | |
1459 | if (hFont == (HFONT) NULL) | |
1460 | { | |
1461 | wxLogDebug(wxT("::SelectObject failed in wxDC::SetFont.")); | |
1462 | } | |
1463 | if (!m_hOldFont) | |
1464 | m_hOldFont = (WXHFONT) hFont; | |
1465 | } | |
1466 | } // end of wxDC::SetFont | |
1467 | ||
1468 | void wxDC::SetPen( | |
1469 | const wxPen& rPen | |
1470 | ) | |
1471 | { | |
1472 | wxCHECK_RET( Ok(), wxT("invalid window dc") ); | |
1473 | ||
1474 | if (m_pen == rPen) | |
1475 | return; | |
1476 | m_pen = rPen; | |
1477 | if (!m_pen.Ok()) | |
1478 | return; | |
1479 | ||
1480 | if (m_hOldPen) | |
1481 | m_hOldPen = 0L; | |
1482 | m_pen = rPen; | |
1483 | ||
1484 | if (!m_pen.Ok()) | |
1485 | { | |
1486 | if (m_hOldPen) | |
1487 | { | |
1488 | m_pen.SetPS((HPS)m_hOldPen); | |
1489 | } | |
1490 | m_hOldPen = 0L; | |
1491 | } | |
1492 | ||
1493 | if (m_pen.Ok()) | |
1494 | { | |
1495 | if (m_pen.GetResourceHandle()) | |
1496 | { | |
1497 | m_pen.SetPS(m_hPS); | |
1498 | if (!m_hOldPen) | |
1499 | m_hOldPen = m_pen.GetPS(); | |
1500 | } | |
1501 | } | |
1502 | } | |
1503 | ||
1504 | void wxDC::SetBrush( | |
1505 | const wxBrush& rBrush | |
1506 | ) | |
1507 | { | |
1508 | wxCHECK_RET( Ok(), wxT("invalid window dc") ); | |
1509 | ||
1510 | if (m_hOldBrush) | |
1511 | m_hOldBrush = 0L; | |
1512 | m_brush = rBrush; | |
1513 | if (!m_brush.Ok()) | |
1514 | if (m_brush == rBrush) | |
1515 | return; | |
1516 | if (!m_brush.Ok()) | |
1517 | if (m_hOldBrush) | |
1518 | m_hOldBrush = 0L; | |
1519 | ||
1520 | if (!m_brush.Ok()) | |
1521 | { | |
1522 | if (m_hOldBrush) | |
1523 | { | |
1524 | m_brush.SetPS((HPS)m_hOldBrush); | |
1525 | } | |
1526 | m_hOldBrush = 0L; | |
1527 | } | |
1528 | ||
1529 | if (m_brush.Ok()) | |
1530 | { | |
1531 | if (m_brush.GetResourceHandle()) | |
1532 | { | |
1533 | m_brush.SetPS(m_hPS); | |
1534 | if (!m_hOldBrush) | |
1535 | m_hOldBrush = (WXHWND)m_brush.GetPS(); | |
1536 | } | |
1537 | } | |
1538 | } // end of wxDC::SetBrush | |
1539 | ||
1540 | void wxDC::SetBackground( | |
1541 | const wxBrush& rBrush | |
1542 | ) | |
1543 | { | |
1544 | m_backgroundBrush = rBrush; | |
1545 | if (!m_backgroundBrush.Ok()) | |
1546 | return; | |
1547 | if (m_pCanvas) | |
1548 | { | |
1549 | bool bCustomColours = TRUE; | |
1550 | ||
1551 | // | |
1552 | // If we haven't specified wxUSER_COLOURS, don't allow the panel/dialog box to | |
1553 | // change background colours from the control-panel specified colours. | |
1554 | // | |
1555 | if (m_pCanvas->IsKindOf(CLASSINFO(wxWindow)) && | |
1556 | ((m_pCanvas->GetWindowStyleFlag() & wxUSER_COLOURS) != wxUSER_COLOURS)) | |
1557 | bCustomColours = FALSE; | |
1558 | if (bCustomColours) | |
1559 | { | |
1560 | if (m_backgroundBrush.GetStyle()==wxTRANSPARENT) | |
1561 | { | |
1562 | m_pCanvas->SetTransparent(TRUE); | |
1563 | } | |
1564 | else | |
1565 | { | |
1566 | // | |
1567 | // Setting the background brush of a DC | |
1568 | // doesn't affect the window background colour. However, | |
1569 | // I'm leaving in the transparency setting because it's needed by | |
1570 | // various controls (e.g. wxStaticText) to determine whether to draw | |
1571 | // transparently or not. TODO: maybe this should be a new function | |
1572 | // wxWindow::SetTransparency(). Should that apply to the child itself, or the | |
1573 | // parent? | |
1574 | // m_canvas->SetBackgroundColour(m_backgroundBrush.GetColour()); | |
1575 | // | |
1576 | m_pCanvas->SetTransparent(FALSE); | |
1577 | } | |
1578 | } | |
1579 | } | |
1580 | COLORREF vNewColor = m_backgroundBrush.GetColour().GetPixel(); | |
1581 | (void)::GpiSetBackColor((HPS)m_hPS, (LONG)vNewColor); | |
1582 | } // end of wxDC::SetBackground | |
1583 | ||
1584 | void wxDC::SetBackgroundMode( | |
1585 | int nMode | |
1586 | ) | |
1587 | { | |
1588 | m_backgroundMode = nMode; | |
1589 | } // end of wxDC::SetBackgroundMode | |
1590 | ||
1591 | void wxDC::SetLogicalFunction( | |
1592 | int nFunction | |
1593 | ) | |
1594 | { | |
1595 | m_logicalFunction = nFunction; | |
1596 | SetRop((WXHDC)m_hDC); | |
1597 | } // wxDC::SetLogicalFunction | |
1598 | ||
1599 | void wxDC::SetRop( | |
1600 | WXHDC hDC | |
1601 | ) | |
1602 | { | |
1603 | if (!hDC || m_logicalFunction < 0) | |
1604 | return; | |
1605 | ||
1606 | LONG lCRop; | |
1607 | switch (m_logicalFunction) | |
1608 | { | |
1609 | case wxXOR: | |
1610 | lCRop = FM_XOR; | |
1611 | break; | |
1612 | ||
1613 | case wxINVERT: | |
1614 | lCRop = FM_INVERT; | |
1615 | break; | |
1616 | ||
1617 | case wxOR_REVERSE: | |
1618 | lCRop = FM_MERGESRCNOT; | |
1619 | break; | |
1620 | ||
1621 | case wxAND_REVERSE: | |
1622 | lCRop = FM_NOTMASKSRC; | |
1623 | break; | |
1624 | ||
1625 | case wxCLEAR: | |
1626 | lCRop = FM_ONE; | |
1627 | break; | |
1628 | ||
1629 | case wxSET: | |
1630 | lCRop = FM_ZERO; | |
1631 | break; | |
1632 | ||
1633 | case wxSRC_INVERT: | |
1634 | lCRop = FM_MERGENOTSRC; | |
1635 | break; | |
1636 | ||
1637 | case wxOR_INVERT: | |
1638 | lCRop = FM_MERGESRCNOT; | |
1639 | break; | |
1640 | ||
1641 | case wxAND: | |
1642 | lCRop = FM_AND; | |
1643 | break; | |
1644 | ||
1645 | case wxOR: | |
1646 | lCRop = FM_OR; | |
1647 | break; | |
1648 | ||
1649 | case wxAND_INVERT: | |
1650 | lCRop = FM_SUBTRACT; | |
1651 | break; | |
1652 | ||
1653 | case wxEQUIV: | |
1654 | case wxNAND: | |
1655 | case wxCOPY: | |
1656 | default: | |
1657 | lCRop = FM_OVERPAINT; | |
1658 | break; | |
1659 | } | |
1660 | ::GpiSetMix((HPS)hDC, lCRop); | |
1661 | } // end of wxDC::SetRop | |
1662 | ||
1663 | bool wxDC::StartDoc( | |
1664 | const wxString& rsMessage | |
1665 | ) | |
1666 | { | |
1667 | // We might be previewing, so return TRUE to let it continue. | |
1668 | return TRUE; | |
1669 | } // end of wxDC::StartDoc | |
1670 | ||
1671 | void wxDC::EndDoc() | |
1672 | { | |
1673 | } // end of wxDC::EndDoc | |
1674 | ||
1675 | void wxDC::StartPage() | |
1676 | { | |
1677 | } // end of wxDC::StartPage | |
1678 | ||
1679 | void wxDC::EndPage() | |
1680 | { | |
1681 | } // end of wxDC::EndPage | |
1682 | ||
1683 | // --------------------------------------------------------------------------- | |
1684 | // text metrics | |
1685 | // --------------------------------------------------------------------------- | |
1686 | ||
1687 | wxCoord wxDC::GetCharHeight() const | |
1688 | { | |
1689 | FONTMETRICS vFM; // metrics structure | |
1690 | ||
1691 | ::GpiQueryFontMetrics( m_hPS | |
1692 | ,sizeof(FONTMETRICS) | |
1693 | ,&vFM | |
1694 | ); | |
1695 | return YDEV2LOGREL(vFM.lXHeight); | |
1696 | } | |
1697 | ||
1698 | wxCoord wxDC::GetCharWidth() const | |
1699 | { | |
1700 | FONTMETRICS vFM; // metrics structure | |
1701 | ||
1702 | ::GpiQueryFontMetrics( m_hPS | |
1703 | ,sizeof(FONTMETRICS) | |
1704 | ,&vFM | |
1705 | ); | |
1706 | return XDEV2LOGREL(vFM.lAveCharWidth); | |
1707 | } | |
1708 | ||
1709 | void wxDC::DoGetTextExtent( | |
1710 | const wxString& rsString | |
1711 | , wxCoord* pvX | |
1712 | , wxCoord* pvY | |
1713 | , wxCoord* pvDescent | |
1714 | , wxCoord* pvExternalLeading | |
1715 | , wxFont* pTheFont | |
1716 | ) const | |
1717 | { | |
1718 | POINTL avPoint[TXTBOX_COUNT]; | |
1719 | POINTL vPtMin; | |
1720 | POINTL vPtMax; | |
1721 | int i; | |
1722 | int l; | |
1723 | FONTMETRICS vFM; // metrics structure | |
1724 | BOOL bRc; | |
1725 | char* pStr; | |
1726 | ERRORID vErrorCode; // last error id code | |
1727 | wxFont* pFontToUse = (wxFont*)pTheFont; | |
1728 | ||
1729 | char zMsg[128]; // DEBUG | |
1730 | wxString sError; | |
1731 | ||
1732 | if (!pFontToUse) | |
1733 | pFontToUse = (wxFont*)&m_font; | |
1734 | l = rsString.length(); | |
1735 | pStr = (PCH) rsString.c_str(); | |
1736 | ||
1737 | // | |
1738 | // In world coordinates. | |
1739 | // | |
1740 | bRc = ::GpiQueryTextBox( m_hPS | |
1741 | ,l | |
1742 | ,pStr | |
1743 | ,TXTBOX_COUNT // return maximum information | |
1744 | ,avPoint // array of coordinates points | |
1745 | ); | |
1746 | if(!bRc) | |
1747 | { | |
1748 | vErrorCode = ::WinGetLastError(wxGetInstance()); | |
1749 | sError = wxPMErrorToStr(vErrorCode); | |
1750 | // DEBUG | |
1751 | sprintf(zMsg, "GpiQueryTextBox for %s: failed with Error: %x - %s", pStr, vErrorCode, sError.c_str()); | |
1752 | (void)wxMessageBox( "wxWindows Menu sample" | |
1753 | ,zMsg | |
1754 | ,wxICON_INFORMATION | |
1755 | ); | |
1756 | } | |
1757 | ||
1758 | vPtMin.x = avPoint[0].x; | |
1759 | vPtMax.x = avPoint[0].x; | |
1760 | vPtMin.y = avPoint[0].y; | |
1761 | vPtMax.y = avPoint[0].y; | |
1762 | for (i = 1; i < 4; i++) | |
1763 | { | |
1764 | if(vPtMin.x > avPoint[i].x) vPtMin.x = avPoint[i].x; | |
1765 | if(vPtMin.y > avPoint[i].y) vPtMin.y = avPoint[i].y; | |
1766 | if(vPtMax.x < avPoint[i].x) vPtMax.x = avPoint[i].x; | |
1767 | if(vPtMax.y < avPoint[i].y) vPtMax.y = avPoint[i].y; | |
1768 | } | |
1769 | ::GpiQueryFontMetrics( m_hPS | |
1770 | ,sizeof(FONTMETRICS) | |
1771 | ,&vFM | |
1772 | ); | |
1773 | ||
1774 | if (pvX) | |
1775 | *pvX = (wxCoord)(vPtMax.x - vPtMin.x + 1); | |
1776 | if (pvY) | |
1777 | *pvY = (wxCoord)(vPtMax.y - vPtMin.y + 1); | |
1778 | if (pvDescent) | |
1779 | *pvDescent = vFM.lMaxDescender; | |
1780 | if (pvExternalLeading) | |
1781 | *pvExternalLeading = vFM.lExternalLeading; | |
1782 | } | |
1783 | ||
1784 | void wxDC::SetMapMode( | |
1785 | int nMode | |
1786 | ) | |
1787 | { | |
1788 | int nPixelWidth = 0; | |
1789 | int nPixelHeight = 0; | |
1790 | int nMmWidth = 1; | |
1791 | int nMmHeight = 1; | |
1792 | LONG lArray[CAPS_VERTICAL_RESOLUTION]; | |
1793 | ||
1794 | m_mappingMode = nMode; | |
1795 | ||
1796 | if(::DevQueryCaps( m_hDC | |
1797 | ,CAPS_FAMILY | |
1798 | ,CAPS_VERTICAL_RESOLUTION | |
1799 | ,lArray | |
1800 | )) | |
1801 | { | |
1802 | LONG lHorzRes; | |
1803 | LONG lVertRes; | |
1804 | ||
1805 | nPixelWidth = lArray[CAPS_WIDTH]; | |
1806 | nPixelHeight = lArray[CAPS_HEIGHT]; | |
1807 | lHorzRes = lArray[CAPS_HORIZONTAL_RESOLUTION]; // returns pel/meter | |
1808 | lVertRes = lArray[CAPS_VERTICAL_RESOLUTION]; // returns pel/meter | |
1809 | nMmWidth = (lHorzRes/1000) * nPixelWidth; | |
1810 | nMmWidth = (lVertRes/1000) * nPixelHeight; | |
1811 | } | |
1812 | if ((nPixelWidth == 0) || (nPixelHeight == 0) || (nMmWidth == 0) || (nMmHeight == 0)) | |
1813 | { | |
1814 | return; | |
1815 | } | |
1816 | ||
1817 | double dMm2pixelsX = nPixelWidth/nMmWidth; | |
1818 | double dMm2pixelsY = nPixelHeight/nMmHeight; | |
1819 | ||
1820 | switch (nMode) | |
1821 | { | |
1822 | case wxMM_TWIPS: | |
1823 | m_logicalScaleX = (twips2mm * dMm2pixelsX); | |
1824 | m_logicalScaleY = (twips2mm * dMm2pixelsY); | |
1825 | break; | |
1826 | ||
1827 | case wxMM_POINTS: | |
1828 | m_logicalScaleX = (pt2mm * dMm2pixelsX); | |
1829 | m_logicalScaleY = (pt2mm * dMm2pixelsY); | |
1830 | break; | |
1831 | ||
1832 | case wxMM_METRIC: | |
1833 | m_logicalScaleX = dMm2pixelsX; | |
1834 | m_logicalScaleY = dMm2pixelsY; | |
1835 | break; | |
1836 | ||
1837 | case wxMM_LOMETRIC: | |
1838 | m_logicalScaleX = (dMm2pixelsX/10.0); | |
1839 | m_logicalScaleY = (dMm2pixelsY/10.0); | |
1840 | break; | |
1841 | ||
1842 | case wxMM_TEXT: | |
1843 | default: | |
1844 | m_logicalScaleX = 1.0; | |
1845 | m_logicalScaleY = 1.0; | |
1846 | break; | |
1847 | } | |
1848 | SIZEL vSize; | |
1849 | ULONG ulOptions; | |
1850 | ||
1851 | ulOptions = ::GpiQueryPS(m_hPS, &vSize); | |
1852 | if (!ulOptions & PU_ARBITRARY) | |
1853 | { | |
1854 | ulOptions = PU_ARBITRARY | GPIF_DEFAULT; | |
1855 | ::GpiSetPS(m_hPS, &vSize, ulOptions); | |
1856 | } | |
1857 | m_nWindowExtX = (int)MS_XDEV2LOG(VIEWPORT_EXTENT); | |
1858 | m_nWindowExtY = (int)MS_YDEV2LOG(VIEWPORT_EXTENT); | |
1859 | // ???? | |
1860 | }; // end of wxDC::SetMapMode | |
1861 | ||
1862 | void wxDC::SetUserScale( | |
1863 | double dX | |
1864 | , double dY | |
1865 | ) | |
1866 | { | |
1867 | m_userScaleX = dX; | |
1868 | m_userScaleY = dY; | |
1869 | ||
1870 | SetMapMode(m_mappingMode); | |
1871 | } // end of wxDC::SetUserScale | |
1872 | ||
1873 | void wxDC::SetAxisOrientation( | |
1874 | bool bXLeftRight | |
1875 | , bool bYBottomUp | |
1876 | ) | |
1877 | { | |
1878 | m_signX = bXLeftRight ? 1 : -1; | |
1879 | m_signY = bYBottomUp ? -1 : 1; | |
1880 | ||
1881 | SetMapMode(m_mappingMode); | |
1882 | } // end of wxDC::SetAxisOrientation | |
1883 | ||
1884 | void wxDC::SetSystemScale( | |
1885 | double dX | |
1886 | , double dY | |
1887 | ) | |
1888 | { | |
1889 | m_scaleX = dX; | |
1890 | m_scaleY = dY; | |
1891 | ||
1892 | SetMapMode(m_mappingMode); | |
1893 | } // end of wxDC::SetSystemScale | |
1894 | ||
1895 | void wxDC::SetLogicalOrigin( | |
1896 | wxCoord vX | |
1897 | , wxCoord vY | |
1898 | ) | |
1899 | { | |
1900 | RECTL vRect; | |
1901 | ||
1902 | ::GpiQueryPageViewport( m_hPS | |
1903 | ,&vRect | |
1904 | ); | |
1905 | vRect.xRight -= vX; | |
1906 | vRect.yTop += vY; | |
1907 | vRect.xLeft = vX; | |
1908 | vRect.yBottom = vY; | |
1909 | ::GpiSetPageViewport( m_hPS | |
1910 | ,&vRect | |
1911 | ); | |
1912 | }; // end of wxDC::SetLogicalOrigin | |
1913 | ||
1914 | void wxDC::SetDeviceOrigin( | |
1915 | wxCoord vX | |
1916 | , wxCoord vY | |
1917 | ) | |
1918 | { | |
1919 | RECTL vRect; | |
1920 | ||
1921 | m_deviceOriginX = vX; | |
1922 | m_deviceOriginY = vY; | |
1923 | ::GpiQueryPageViewport( m_hPS | |
1924 | ,&vRect | |
1925 | ); | |
1926 | vRect.xLeft += vX; | |
1927 | vRect.xRight += vX; | |
1928 | vRect.yBottom -= vY; | |
1929 | vRect.yTop -= vY; | |
1930 | ::GpiSetPageViewport( m_hPS | |
1931 | ,&vRect | |
1932 | ); | |
1933 | }; // end of wxDC::SetDeviceOrigin | |
1934 | ||
1935 | // --------------------------------------------------------------------------- | |
1936 | // coordinates transformations | |
1937 | // --------------------------------------------------------------------------- | |
1938 | ||
1939 | wxCoord wxDCBase::DeviceToLogicalX(wxCoord x) const | |
1940 | { | |
1941 | return (wxCoord) (((x) - m_deviceOriginX)/(m_logicalScaleX*m_userScaleX*m_signX*m_scaleX) - m_logicalOriginX); | |
1942 | } | |
1943 | ||
1944 | wxCoord wxDCBase::DeviceToLogicalXRel(wxCoord x) const | |
1945 | { | |
1946 | // axis orientation is not taken into account for conversion of a distance | |
1947 | return (wxCoord) ((x)/(m_logicalScaleX*m_userScaleX*m_scaleX)); | |
1948 | } | |
1949 | ||
1950 | wxCoord wxDCBase::DeviceToLogicalY(wxCoord y) const | |
1951 | { | |
1952 | return (wxCoord) (((y) - m_deviceOriginY)/(m_logicalScaleY*m_userScaleY*m_signY*m_scaleY) - m_logicalOriginY); | |
1953 | } | |
1954 | ||
1955 | wxCoord wxDCBase::DeviceToLogicalYRel(wxCoord y) const | |
1956 | { | |
1957 | // axis orientation is not taken into account for conversion of a distance | |
1958 | return (wxCoord) ((y)/(m_logicalScaleY*m_userScaleY*m_scaleY)); | |
1959 | } | |
1960 | ||
1961 | wxCoord wxDCBase::LogicalToDeviceX(wxCoord x) const | |
1962 | { | |
1963 | return (wxCoord) ((x - m_logicalOriginX)*m_logicalScaleX*m_userScaleX*m_signX*m_scaleX + m_deviceOriginX); | |
1964 | } | |
1965 | ||
1966 | wxCoord wxDCBase::LogicalToDeviceXRel(wxCoord x) const | |
1967 | { | |
1968 | // axis orientation is not taken into account for conversion of a distance | |
1969 | return (wxCoord) (x*m_logicalScaleX*m_userScaleX*m_scaleX); | |
1970 | } | |
1971 | ||
1972 | wxCoord wxDCBase::LogicalToDeviceY(wxCoord y) const | |
1973 | { | |
1974 | return (wxCoord) ((y - m_logicalOriginY)*m_logicalScaleY*m_userScaleY*m_signY*m_scaleY + m_deviceOriginY); | |
1975 | } | |
1976 | ||
1977 | wxCoord wxDCBase::LogicalToDeviceYRel(wxCoord y) const | |
1978 | { | |
1979 | // axis orientation is not taken into account for conversion of a distance | |
1980 | return (wxCoord) (y*m_logicalScaleY*m_userScaleY*m_scaleY); | |
1981 | } | |
1982 | ||
1983 | // --------------------------------------------------------------------------- | |
1984 | // bit blit | |
1985 | // --------------------------------------------------------------------------- | |
1986 | ||
1987 | bool wxDC::DoBlit( | |
1988 | wxCoord vXdest | |
1989 | , wxCoord vYdest | |
1990 | , wxCoord vWidth | |
1991 | , wxCoord vHeight | |
1992 | , wxDC* pSource | |
1993 | , wxCoord vXsrc | |
1994 | , wxCoord vYsrc | |
1995 | , int nRop | |
1996 | , bool bUseMask | |
1997 | , wxCoord vXsrcMask | |
1998 | , wxCoord vYsrcMask | |
1999 | ) | |
2000 | { | |
2001 | wxMask* pMask = NULL; | |
2002 | CHARBUNDLE vCbnd; | |
2003 | COLORREF vOldTextColor; | |
2004 | COLORREF vOldBackground = ::GpiQueryBackColor(m_hPS); | |
2005 | ||
2006 | if (bUseMask) | |
2007 | { | |
2008 | const wxBitmap& rBmp = pSource->m_vSelectedBitmap; | |
2009 | ||
2010 | pMask = rBmp.GetMask(); | |
2011 | if (!(rBmp.Ok() && pMask && pMask->GetMaskBitmap())) | |
2012 | { | |
2013 | bUseMask = FALSE; | |
2014 | } | |
2015 | } | |
2016 | ||
2017 | ::GpiQueryAttrs( m_hPS | |
2018 | ,PRIM_CHAR | |
2019 | ,CBB_COLOR | |
2020 | ,&vCbnd | |
2021 | ); | |
2022 | vOldTextColor = (COLORREF)vCbnd.lColor; | |
2023 | ||
2024 | if (m_textForegroundColour.Ok()) | |
2025 | { | |
2026 | vCbnd.lColor = (LONG)m_textForegroundColour.GetPixel(); | |
2027 | ::GpiSetAttrs( m_hPS // presentation-space handle | |
2028 | ,PRIM_CHAR // Char primitive. | |
2029 | ,CBB_COLOR // sets color. | |
2030 | ,0 | |
2031 | ,&vCbnd // buffer for attributes. | |
2032 | ); | |
2033 | } | |
2034 | if (m_textBackgroundColour.Ok()) | |
2035 | { | |
2036 | ::GpiSetBackColor(m_hPS, (LONG)m_textBackgroundColour.GetPixel()); | |
2037 | } | |
2038 | ||
2039 | LONG lRop = ROP_SRCCOPY; | |
2040 | ||
2041 | switch (nRop) | |
2042 | { | |
2043 | case wxXOR: lRop = ROP_SRCINVERT; break; | |
2044 | case wxINVERT: lRop = ROP_DSTINVERT; break; | |
2045 | case wxOR_REVERSE: lRop = 0x00DD0228; break; | |
2046 | case wxAND_REVERSE: lRop = ROP_SRCERASE; break; | |
2047 | case wxCLEAR: lRop = ROP_ZERO; break; | |
2048 | case wxSET: lRop = ROP_ONE; break; | |
2049 | case wxOR_INVERT: lRop = ROP_MERGEPAINT; break; | |
2050 | case wxAND: lRop = ROP_SRCAND; break; | |
2051 | case wxOR: lRop = ROP_SRCPAINT; break; | |
2052 | case wxEQUIV: lRop = 0x00990066; break; | |
2053 | case wxNAND: lRop = 0x007700E6; break; | |
2054 | case wxAND_INVERT: lRop = 0x00220326; break; | |
2055 | case wxCOPY: lRop = ROP_SRCCOPY; break; | |
2056 | case wxNO_OP: lRop = ROP_NOTSRCERASE; break; | |
2057 | case wxSRC_INVERT: lRop = ROP_SRCINVERT; break; | |
2058 | case wxNOR: lRop = ROP_NOTSRCCOPY; break; | |
2059 | default: | |
2060 | wxFAIL_MSG( wxT("unsupported logical function") ); | |
2061 | return FALSE; | |
2062 | } | |
2063 | ||
2064 | bool bSuccess; | |
2065 | ||
2066 | if (bUseMask) | |
2067 | { | |
2068 | // | |
2069 | // Blit bitmap with mask | |
2070 | // | |
2071 | ||
2072 | // | |
2073 | // Create a temp buffer bitmap and DCs/PSs to access it and the mask | |
2074 | // | |
2075 | HDC hDCMask; | |
2076 | HDC hDCBuffer; | |
2077 | HPS hPSMask; | |
2078 | HPS hPSBuffer; | |
2079 | DEVOPENSTRUC vDOP = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L}; | |
2080 | BITMAPINFOHEADER2 vBmpHdr; | |
2081 | HBITMAP hBufBitmap; | |
2082 | SIZEL vSize = {0, 0}; | |
2083 | LONG rc; | |
2084 | ||
2085 | memset(&vBmpHdr, 0, sizeof(BITMAPINFOHEADER2)); | |
2086 | vBmpHdr.cbFix = sizeof(BITMAPINFOHEADER2); | |
2087 | vBmpHdr.cx = vWidth; | |
2088 | vBmpHdr.cy = vHeight; | |
2089 | vBmpHdr.cPlanes = 1; | |
2090 | vBmpHdr.cBitCount = 24; | |
2091 | ||
2092 | #if wxUSE_DC_CACHEING | |
2093 | if (TRUE) | |
2094 | { | |
2095 | // | |
2096 | // create a temp buffer bitmap and DCs to access it and the mask | |
2097 | // | |
2098 | wxDCCacheEntry* pDCCacheEntry1 = FindDCInCache( NULL | |
2099 | ,pSource->GetHPS() | |
2100 | ); | |
2101 | wxDCCacheEntry* pDCCacheEntry2 = FindDCInCache( pDCCacheEntry1 | |
2102 | ,GetHPS() | |
2103 | ); | |
2104 | wxDCCacheEntry* pBitmapCacheEntry = FindBitmapInCache( GetHPS() | |
2105 | ,vWidth | |
2106 | ,vHeight | |
2107 | ); | |
2108 | ||
2109 | hPSMask = pDCCacheEntry1->m_hPS; | |
2110 | hDCBuffer = (HDC)pDCCacheEntry2->m_hPS; | |
2111 | hBufBitmap = (HBITMAP)pBitmapCacheEntry->m_hBitmap; | |
2112 | } | |
2113 | else | |
2114 | #endif | |
2115 | { | |
2116 | hDCMask = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDOP, NULLHANDLE); | |
2117 | hDCBuffer = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDOP, NULLHANDLE); | |
2118 | hPSMask = ::GpiCreatePS(vHabmain, hDCMask, &vSize, PU_PELS | GPIT_MICRO | GPIA_ASSOC); | |
2119 | hPSBuffer = ::GpiCreatePS(vHabmain, hDCBuffer, &vSize, PU_PELS | GPIT_MICRO | GPIA_ASSOC); | |
2120 | hBufBitmap = ::GpiCreateBitmap(GetHPS(), &vBmpHdr, 0L, NULL, NULL); | |
2121 | } | |
2122 | ||
2123 | POINTL aPoint1[4] = { 0, 0 | |
2124 | ,vWidth, vHeight | |
2125 | ,vXdest, vYdest | |
2126 | ,vXdest + vWidth, vYdest + vHeight | |
2127 | }; | |
2128 | POINTL aPoint2[4] = { 0, 0 | |
2129 | ,vWidth, vHeight | |
2130 | ,vXsrc, vYsrc | |
2131 | ,vXsrc + vWidth, vYsrc + vHeight | |
2132 | }; | |
2133 | POINTL aPoint3[4] = { vXdest, vYdest | |
2134 | ,vXdest + vWidth, vYdest + vHeight | |
2135 | ,vXsrc, vYsrc | |
2136 | ,vXsrc + vWidth, vYsrc + vHeight | |
2137 | }; | |
2138 | POINTL aPoint4[4] = { vXdest, vYdest | |
2139 | ,vXdest + vWidth, vYdest + vHeight | |
2140 | ,0, 0 | |
2141 | ,vWidth, vHeight | |
2142 | }; | |
2143 | ::GpiSetBitmap(hPSMask, (HBITMAP) pMask->GetMaskBitmap()); | |
2144 | ::GpiSetBitmap(hPSBuffer, (HBITMAP) hBufBitmap); | |
2145 | ||
2146 | // | |
2147 | // Copy dest to buffer | |
2148 | // | |
2149 | rc = ::GpiBitBlt( hPSBuffer | |
2150 | ,GetHPS() | |
2151 | ,4L | |
2152 | ,aPoint1 | |
2153 | ,ROP_SRCCOPY | |
2154 | ,BBO_IGNORE | |
2155 | ); | |
2156 | if (rc == GPI_ERROR) | |
2157 | { | |
2158 | wxLogLastError(wxT("BitBlt")); | |
2159 | } | |
2160 | ||
2161 | // | |
2162 | // Copy src to buffer using selected raster op | |
2163 | // | |
2164 | rc = ::GpiBitBlt( hPSBuffer | |
2165 | ,GetHPS() | |
2166 | ,4L | |
2167 | ,aPoint2 | |
2168 | ,lRop | |
2169 | ,BBO_IGNORE | |
2170 | ); | |
2171 | if (rc == GPI_ERROR) | |
2172 | { | |
2173 | wxLogLastError(wxT("BitBlt")); | |
2174 | } | |
2175 | ||
2176 | // | |
2177 | // Set masked area in buffer to BLACK (pixel value 0) | |
2178 | // | |
2179 | COLORREF vPrevBkCol = ::GpiQueryBackColor(GetHPS()); | |
2180 | COLORREF vPrevCol = ::GpiQueryColor(GetHPS()); | |
2181 | ||
2182 | ::GpiSetBackColor(GetHPS(), OS2RGB(255, 255, 255)); | |
2183 | ::GpiSetColor(GetHPS(), OS2RGB(0, 0, 0)); | |
2184 | ||
2185 | rc = ::GpiBitBlt( hPSBuffer | |
2186 | ,hPSMask | |
2187 | ,4L | |
2188 | ,aPoint2 | |
2189 | ,ROP_SRCAND | |
2190 | ,BBO_IGNORE | |
2191 | ); | |
2192 | if (rc == GPI_ERROR) | |
2193 | { | |
2194 | wxLogLastError(wxT("BitBlt")); | |
2195 | } | |
2196 | ||
2197 | // | |
2198 | // Set unmasked area in dest to BLACK | |
2199 | // | |
2200 | ::GpiSetBackColor(GetHPS(), OS2RGB(0, 0, 0)); | |
2201 | ::GpiSetColor(GetHPS(), OS2RGB(255, 255, 255)); | |
2202 | rc = ::GpiBitBlt( GetHPS() | |
2203 | ,hPSMask | |
2204 | ,4L | |
2205 | ,aPoint3 | |
2206 | ,ROP_SRCAND | |
2207 | ,BBO_IGNORE | |
2208 | ); | |
2209 | if (rc == GPI_ERROR) | |
2210 | { | |
2211 | wxLogLastError(wxT("BitBlt")); | |
2212 | } | |
2213 | ||
2214 | // | |
2215 | // Restore colours to original values | |
2216 | // | |
2217 | ::GpiSetBackColor(GetHPS(), vPrevBkCol); | |
2218 | ::GpiSetColor(GetHPS(), vPrevCol); | |
2219 | ||
2220 | // | |
2221 | // OR buffer to dest | |
2222 | // | |
2223 | rc = ::GpiBitBlt( GetHPS() | |
2224 | ,hPSMask | |
2225 | ,4L | |
2226 | ,aPoint4 | |
2227 | ,ROP_SRCPAINT | |
2228 | ,BBO_IGNORE | |
2229 | ); | |
2230 | if (rc == GPI_ERROR) | |
2231 | { | |
2232 | bSuccess = FALSE; | |
2233 | wxLogLastError(wxT("BitBlt")); | |
2234 | } | |
2235 | ||
2236 | // | |
2237 | // Tidy up temporary DCs and bitmap | |
2238 | // | |
2239 | ::GpiSetBitmap(hPSMask, NULLHANDLE); | |
2240 | ::GpiSetBitmap(hPSBuffer, NULLHANDLE); | |
2241 | #if !wxUSE_DC_CACHEING | |
2242 | ::GpiDestroyPS(hPSMask); | |
2243 | ::GpiDestroyPS(hPSBuffer); | |
2244 | ::DevCloseDC(hDCMask); | |
2245 | ::DevCloseDC(hDCBuffer); | |
2246 | ::GpiDeleteBitmap(hBufBitmap); | |
2247 | #endif | |
2248 | bSuccess = TRUE; | |
2249 | } | |
2250 | else // no mask, just BitBlt() it | |
2251 | { | |
2252 | POINTL aPoint[4] = { vXdest, vYdest | |
2253 | ,vXdest + vWidth, vYdest + vHeight | |
2254 | ,vXsrc, vYsrc | |
2255 | ,vXsrc + vWidth, vYsrc + vHeight | |
2256 | }; | |
2257 | ||
2258 | bSuccess = (::GpiBitBlt( m_hPS | |
2259 | ,pSource->GetHPS() | |
2260 | ,4L | |
2261 | ,aPoint | |
2262 | ,lRop | |
2263 | ,BBO_IGNORE | |
2264 | ) != GPI_ERROR); | |
2265 | if (!bSuccess ) | |
2266 | { | |
2267 | wxLogLastError(wxT("BitBlt")); | |
2268 | } | |
2269 | } | |
2270 | vCbnd.lColor = (LONG)vOldTextColor; | |
2271 | ::GpiSetAttrs( m_hPS // presentation-space handle | |
2272 | ,PRIM_CHAR // Char primitive. | |
2273 | ,CBB_COLOR // sets color. | |
2274 | ,0 | |
2275 | ,&vCbnd // buffer for attributes. | |
2276 | ); | |
2277 | ::GpiSetBackColor(m_hPS, (LONG)vOldBackground); | |
2278 | return bSuccess; | |
2279 | } | |
2280 | ||
2281 | void wxDC::DoGetSize( | |
2282 | int* pnWidth | |
2283 | , int* pnHeight | |
2284 | ) const | |
2285 | { | |
2286 | LONG lArray[CAPS_HEIGHT]; | |
2287 | ||
2288 | if(::DevQueryCaps( m_hDC | |
2289 | ,CAPS_FAMILY | |
2290 | ,CAPS_HEIGHT | |
2291 | ,lArray | |
2292 | )) | |
2293 | { | |
2294 | *pnWidth = lArray[CAPS_WIDTH]; | |
2295 | *pnHeight = lArray[CAPS_HEIGHT]; | |
2296 | } | |
2297 | }; // end of wxDC::DoGetSize( | |
2298 | ||
2299 | void wxDC::DoGetSizeMM( | |
2300 | int* pnWidth | |
2301 | , int* pnHeight | |
2302 | ) const | |
2303 | { | |
2304 | LONG lArray[CAPS_VERTICAL_RESOLUTION]; | |
2305 | ||
2306 | if(::DevQueryCaps( m_hDC | |
2307 | ,CAPS_FAMILY | |
2308 | ,CAPS_VERTICAL_RESOLUTION | |
2309 | ,lArray | |
2310 | )) | |
2311 | { | |
2312 | int nWidth; | |
2313 | int nHeight; | |
2314 | int nHorzRes; | |
2315 | int nVertRes; | |
2316 | ||
2317 | nWidth = lArray[CAPS_WIDTH]; | |
2318 | nHeight = lArray[CAPS_HEIGHT]; | |
2319 | nHorzRes = lArray[CAPS_HORIZONTAL_RESOLUTION]; // returns pel/meter | |
2320 | nVertRes = lArray[CAPS_VERTICAL_RESOLUTION]; // returns pel/meter | |
2321 | nWidth = (nHorzRes/1000) * nWidth; | |
2322 | nHeight = (nVertRes/1000) * nHeight; | |
2323 | } | |
2324 | }; // end of wxDC::DoGetSizeMM | |
2325 | ||
2326 | wxSize wxDC::GetPPI() const | |
2327 | { | |
2328 | LONG lArray[CAPS_VERTICAL_RESOLUTION]; | |
2329 | int nWidth; | |
2330 | int nHeight; | |
2331 | ||
2332 | if(::DevQueryCaps( m_hDC | |
2333 | ,CAPS_FAMILY | |
2334 | ,CAPS_VERTICAL_RESOLUTION | |
2335 | ,lArray | |
2336 | )) | |
2337 | { | |
2338 | int nPelWidth; | |
2339 | int nPelHeight; | |
2340 | int nHorzRes; | |
2341 | int nVertRes; | |
2342 | ||
2343 | nPelWidth = lArray[CAPS_WIDTH]; | |
2344 | nPelHeight = lArray[CAPS_HEIGHT]; | |
2345 | nHorzRes = lArray[CAPS_HORIZONTAL_RESOLUTION]; // returns pel/meter | |
2346 | nVertRes = lArray[CAPS_VERTICAL_RESOLUTION]; // returns pel/meter | |
2347 | nWidth = (nHorzRes/39.3) * nPelWidth; | |
2348 | nHeight = (nVertRes/39.3) * nPelHeight; | |
2349 | } | |
2350 | return (wxSize(nWidth,nHeight)); | |
2351 | } // end of wxDC::GetPPI | |
2352 | ||
2353 | void wxDC::SetLogicalScale( | |
2354 | double dX | |
2355 | , double dY | |
2356 | ) | |
2357 | { | |
2358 | m_logicalScaleX = dX; | |
2359 | m_logicalScaleY = dY; | |
2360 | }; // end of wxDC::SetLogicalScale | |
2361 | ||
2362 | #if WXWIN_COMPATIBILITY | |
2363 | void wxDC::DoGetTextExtent(const wxString& string, float *x, float *y, | |
2364 | float *descent, float *externalLeading, | |
2365 | wxFont *theFont, bool use16bit) const | |
2366 | { | |
2367 | wxCoord x1, y1, descent1, externalLeading1; | |
2368 | GetTextExtent(string, & x1, & y1, & descent1, & externalLeading1, theFont, use16bit); | |
2369 | *x = x1; *y = y1; | |
2370 | if (descent) | |
2371 | *descent = descent1; | |
2372 | if (externalLeading) | |
2373 | *externalLeading = externalLeading1; | |
2374 | } | |
2375 | #endif | |
2376 |