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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: bitmap.cpp | |
3 | // Purpose: wxBitmap | |
4 | // Author: David Webster | |
5 | // Modified by: | |
6 | // Created: 08/08/99 | |
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 <stdio.h> | |
17 | ||
18 | #include "wx/list.h" | |
19 | #include "wx/utils.h" | |
20 | #include "wx/app.h" | |
21 | #include "wx/palette.h" | |
22 | #include "wx/dcmemory.h" | |
23 | #include "wx/bitmap.h" | |
24 | #include "wx/icon.h" | |
25 | #endif | |
26 | ||
27 | #include "wx/os2/private.h" | |
28 | #include "wx/log.h" | |
29 | ||
30 | //#include "wx/msw/dib.h" | |
31 | #include "wx/image.h" | |
32 | ||
33 | // ---------------------------------------------------------------------------- | |
34 | // macros | |
35 | // ---------------------------------------------------------------------------- | |
36 | ||
37 | #if !USE_SHARED_LIBRARIES | |
38 | IMPLEMENT_DYNAMIC_CLASS(wxBitmap, wxGDIObject) | |
39 | IMPLEMENT_DYNAMIC_CLASS(wxMask, wxObject) | |
40 | ||
41 | IMPLEMENT_DYNAMIC_CLASS(wxBitmapHandler, wxObject) | |
42 | #endif | |
43 | ||
44 | // ============================================================================ | |
45 | // implementation | |
46 | // ============================================================================ | |
47 | ||
48 | // ---------------------------------------------------------------------------- | |
49 | // wxBitmapRefData | |
50 | // ---------------------------------------------------------------------------- | |
51 | ||
52 | wxBitmapRefData::wxBitmapRefData() | |
53 | { | |
54 | m_nQuality = 0; | |
55 | m_pSelectedInto = NULL; | |
56 | m_nNumColors = 0; | |
57 | m_pBitmapMask = NULL; | |
58 | } | |
59 | ||
60 | void wxBitmapRefData::Free() | |
61 | { | |
62 | wxASSERT_MSG( !m_pSelectedInto, | |
63 | wxT("deleting bitmap still selected into wxMemoryDC") ); | |
64 | ||
65 | if (m_hBitmap) | |
66 | { | |
67 | if ( !::GpiDeleteBitmap((HBITMAP)m_hBitmap) ) | |
68 | { | |
69 | wxLogLastError("GpiDeleteBitmap(hbitmap)"); | |
70 | } | |
71 | } | |
72 | ||
73 | delete m_pBitmapMask; | |
74 | m_pBitmapMask = NULL; | |
75 | } | |
76 | ||
77 | // ---------------------------------------------------------------------------- | |
78 | // wxBitmap creation | |
79 | // ---------------------------------------------------------------------------- | |
80 | ||
81 | // this function should be called from all wxBitmap ctors | |
82 | void wxBitmap::Init() | |
83 | { | |
84 | // m_refData = NULL; done in the base class ctor | |
85 | ||
86 | if (wxTheBitmapList) | |
87 | wxTheBitmapList->AddBitmap(this); | |
88 | } | |
89 | ||
90 | bool wxBitmap::CopyFromIconOrCursor( | |
91 | const wxGDIImage& rIcon | |
92 | ) | |
93 | { | |
94 | wxBitmapRefData* pRefData = new wxBitmapRefData; | |
95 | ||
96 | m_refData = pRefData; | |
97 | ||
98 | pRefData->m_nWidth = rIcon.GetWidth(); | |
99 | pRefData->m_nHeight = rIcon.GetHeight(); | |
100 | pRefData->m_nDepth = wxDisplayDepth(); | |
101 | ||
102 | pRefData->m_hBitmap = (WXHBITMAP)rIcon.GetHandle(); | |
103 | // no mask??? | |
104 | pRefData->m_pBitmapMask = new wxMask(); | |
105 | ||
106 | #if WXWIN_COMPATIBILITY_2 | |
107 | pRefData->m_bOk = TRUE; | |
108 | #endif // WXWIN_COMPATIBILITY_2 | |
109 | return(TRUE); | |
110 | } | |
111 | ||
112 | bool wxBitmap::CopyFromCursor( | |
113 | const wxCursor& rCursor | |
114 | ) | |
115 | { | |
116 | UnRef(); | |
117 | ||
118 | if (!rCursor.Ok()) | |
119 | return(FALSE); | |
120 | return(CopyFromIconOrCursor(rCursor)); | |
121 | } | |
122 | ||
123 | bool wxBitmap::CopyFromIcon( | |
124 | const wxIcon& rIcon | |
125 | ) | |
126 | { | |
127 | UnRef(); | |
128 | ||
129 | if (!rIcon.Ok()) | |
130 | return(FALSE); | |
131 | ||
132 | #if WXWIN_COMPATIBILITY_2 | |
133 | refData->m_ok = TRUE; | |
134 | #endif // WXWIN_COMPATIBILITY_2 | |
135 | ||
136 | return CopyFromIconOrCursor(rIcon); | |
137 | } | |
138 | ||
139 | wxBitmap::~wxBitmap() | |
140 | { | |
141 | if (wxTheBitmapList) | |
142 | wxTheBitmapList->DeleteObject(this); | |
143 | } | |
144 | ||
145 | wxBitmap::wxBitmap( | |
146 | const char zBits[] | |
147 | , int nTheWidth | |
148 | , int nTheHeight | |
149 | , int nNoBits | |
150 | ) | |
151 | { | |
152 | Init(); | |
153 | ||
154 | wxBitmapRefData* pRefData = new wxBitmapRefData; | |
155 | BITMAPINFOHEADER2 vHeader; | |
156 | BITMAPINFO2 vInfo; | |
157 | HDC hDc; | |
158 | HPS hPs; | |
159 | DEVOPENSTRUC vDop = { NULL, "DISPLAY", NULL, NULL, NULL, NULL, NULL, NULL, NULL }; | |
160 | SIZEL vSize = {0, 0}; | |
161 | ||
162 | wxASSERT(vHabmain != NULL); | |
163 | ||
164 | hDc = ::DevOpenDC(vHabmain, OD_MEMORY, (PSZ)"*", 1L, (PDEVOPENDATA)&vDop, 0L); | |
165 | ||
166 | vHeader.cbFix = sizeof(vHeader); | |
167 | vHeader.cx = (USHORT)nTheWidth; | |
168 | vHeader.cy = (USHORT)nTheHeight; | |
169 | vHeader.cPlanes = 1L; | |
170 | vHeader.cBitCount = nNoBits; | |
171 | vHeader.ulCompression = BCA_UNCOMP; | |
172 | vHeader.cxResolution = 0; | |
173 | vHeader.cyResolution = 0; | |
174 | vHeader.cclrUsed = 0; | |
175 | vHeader.cclrImportant = 0; | |
176 | vHeader.usUnits = BRU_METRIC; | |
177 | vHeader.usRecording = BRA_BOTTOMUP; | |
178 | vHeader.usRendering = BRH_NOTHALFTONED; | |
179 | vHeader.cSize1 = 0; | |
180 | vHeader.cSize2 = 0; | |
181 | vHeader.ulColorEncoding = 0; | |
182 | vHeader.ulIdentifier = 0; | |
183 | ||
184 | hPs = ::GpiCreatePS(vHabmain, hDc, &vSize, GPIA_ASSOC | PU_PELS); | |
185 | if (hPs == 0) | |
186 | { | |
187 | wxLogLastError("GpiCreatePS Failure"); | |
188 | } | |
189 | ||
190 | m_hDc = hDc; | |
191 | m_hPs = hPs; | |
192 | ||
193 | m_refData = pRefData; | |
194 | ||
195 | pRefData->m_nWidth = nTheWidth; | |
196 | pRefData->m_nHeight = nTheHeight; | |
197 | pRefData->m_nDepth = nNoBits; | |
198 | pRefData->m_nNumColors = 0; | |
199 | pRefData->m_pSelectedInto = NULL; | |
200 | ||
201 | HBITMAP hBmp = ::GpiCreateBitmap(hPs, &vHeader, 0L, NULL, &vInfo); | |
202 | if (!hBmp) | |
203 | { | |
204 | wxLogLastError("CreateBitmap"); | |
205 | } | |
206 | SetHBITMAP((WXHBITMAP)hBmp); | |
207 | } | |
208 | ||
209 | // Create from XPM data | |
210 | wxBitmap::wxBitmap( | |
211 | char** ppData | |
212 | , wxControl* WXUNUSED(pAnItem)) | |
213 | { | |
214 | Init(); | |
215 | ||
216 | (void)Create( (void *)ppData | |
217 | ,wxBITMAP_TYPE_XPM_DATA | |
218 | ,0 | |
219 | ,0 | |
220 | ,0 | |
221 | ); | |
222 | } | |
223 | ||
224 | wxBitmap::wxBitmap( | |
225 | int nW | |
226 | , int nH | |
227 | , int nD | |
228 | ) | |
229 | { | |
230 | Init(); | |
231 | ||
232 | (void)Create( nW | |
233 | ,nH | |
234 | ,nD | |
235 | ); | |
236 | } | |
237 | ||
238 | wxBitmap::wxBitmap( | |
239 | void* pData | |
240 | , long lType | |
241 | , int nWidth | |
242 | , int nHeight | |
243 | , int nDepth | |
244 | ) | |
245 | { | |
246 | Init(); | |
247 | ||
248 | (void)Create( pData | |
249 | ,lType | |
250 | ,nWidth | |
251 | ,nHeight | |
252 | ,nDepth | |
253 | ); | |
254 | } | |
255 | ||
256 | wxBitmap::wxBitmap( | |
257 | const wxString& rFilename | |
258 | , long lType | |
259 | ) | |
260 | { | |
261 | Init(); | |
262 | ||
263 | LoadFile( rFilename | |
264 | ,(int)lType | |
265 | ); | |
266 | } | |
267 | ||
268 | bool wxBitmap::Create( | |
269 | int nW | |
270 | , int nH | |
271 | , int nD | |
272 | ) | |
273 | { | |
274 | HBITMAP hBmp; | |
275 | BITMAPINFOHEADER2 vHeader; | |
276 | BITMAPINFO2 vInfo; | |
277 | HPS hpsScreen; | |
278 | HDC hdcScreen; | |
279 | DEVOPENSTRUC vDop = { NULL, "DISPLAY", NULL, NULL, NULL, NULL, NULL, NULL, NULL }; | |
280 | SIZEL vSize = {0, 0}; | |
281 | LONG lBitCount; | |
282 | ||
283 | wxASSERT(vHabmain != NULL); | |
284 | ||
285 | hpsScreen = ::WinGetScreenPS(HWND_DESKTOP); | |
286 | hdcScreen = ::GpiQueryDevice(hpsScreen); | |
287 | ::DevQueryCaps(hdcScreen, CAPS_COLOR_BITCOUNT, 1L, &lBitCount); | |
288 | ||
289 | vHeader.cbFix = sizeof(vHeader); | |
290 | vHeader.cx = (USHORT)nW; | |
291 | vHeader.cy = (USHORT)nH; | |
292 | vHeader.cPlanes = (USHORT)nD; | |
293 | vHeader.cBitCount = lBitCount; | |
294 | vHeader.ulCompression = BCA_UNCOMP; | |
295 | vHeader.cxResolution = 0; | |
296 | vHeader.cyResolution = 0; | |
297 | vHeader.cclrUsed = 0; | |
298 | vHeader.cclrImportant = 0; | |
299 | vHeader.usUnits = BRU_METRIC; | |
300 | vHeader.usRecording = BRA_BOTTOMUP; | |
301 | vHeader.usRendering = BRH_NOTHALFTONED; | |
302 | vHeader.cSize1 = 0; | |
303 | vHeader.cSize2 = 0; | |
304 | vHeader.ulColorEncoding = 0; | |
305 | vHeader.ulIdentifier = 0; | |
306 | ||
307 | UnRef(); | |
308 | m_refData = new wxBitmapRefData; | |
309 | ||
310 | GetBitmapData()->m_nWidth = nW; | |
311 | GetBitmapData()->m_nHeight = nH; | |
312 | GetBitmapData()->m_nDepth = nD; | |
313 | ||
314 | if (nD > 0) | |
315 | { | |
316 | hBmp = ::GpiCreateBitmap(hpsScreen, &vHeader, 0L, NULL, &vInfo); | |
317 | if (!hBmp) | |
318 | { | |
319 | wxLogLastError("CreateBitmap"); | |
320 | } | |
321 | } | |
322 | else | |
323 | { | |
324 | LONG lPlanes; | |
325 | ||
326 | ::DevQueryCaps(hdcScreen, CAPS_COLOR_PLANES, 1L, &lPlanes); | |
327 | hBmp = ::GpiCreateBitmap(hpsScreen, &vHeader, 0L, NULL, &vInfo); | |
328 | if (!hBmp) | |
329 | { | |
330 | wxLogLastError("CreateBitmap"); | |
331 | } | |
332 | GetBitmapData()->m_nDepth = wxDisplayDepth(); | |
333 | } | |
334 | SetHBITMAP((WXHBITMAP)hBmp); | |
335 | ||
336 | #if WXWIN_COMPATIBILITY_2 | |
337 | GetBitmapData()->m_bOk = hBmp != 0; | |
338 | #endif // WXWIN_COMPATIBILITY_2 | |
339 | ||
340 | return Ok(); | |
341 | } | |
342 | ||
343 | bool wxBitmap::LoadFile( | |
344 | const wxString& rFilename | |
345 | , long lType | |
346 | ) | |
347 | { | |
348 | UnRef(); | |
349 | ||
350 | wxBitmapHandler* pHandler = wxDynamicCast( FindHandler(lType) | |
351 | ,wxBitmapHandler | |
352 | ); | |
353 | ||
354 | if (pHandler) | |
355 | { | |
356 | m_refData = new wxBitmapRefData; | |
357 | ||
358 | return(pHandler->LoadFile( this | |
359 | ,rFilename | |
360 | ,lType | |
361 | , -1 | |
362 | , -1 | |
363 | )); | |
364 | } | |
365 | else | |
366 | { | |
367 | wxImage vImage; | |
368 | ||
369 | if (!vImage.LoadFile(rFilename, lType) || !vImage.Ok() ) | |
370 | return(FALSE); | |
371 | ||
372 | *this = vImage.ConvertToBitmap(); | |
373 | ||
374 | return(TRUE); | |
375 | } | |
376 | } | |
377 | ||
378 | bool wxBitmap::Create( | |
379 | void* pData | |
380 | , long lType | |
381 | , int nWidth | |
382 | , int nHeight | |
383 | , int nDepth | |
384 | ) | |
385 | { | |
386 | UnRef(); | |
387 | ||
388 | wxBitmapHandler* pHandler = wxDynamicCast( FindHandler(lType) | |
389 | ,wxBitmapHandler | |
390 | ); | |
391 | ||
392 | if (!pHandler) | |
393 | { | |
394 | wxLogDebug(wxT("Failed to create bitmap: no bitmap handler for " | |
395 | "type %d defined."), lType); | |
396 | ||
397 | return(FALSE); | |
398 | } | |
399 | ||
400 | m_refData = new wxBitmapRefData; | |
401 | ||
402 | return(pHandler->Create( this | |
403 | ,pData | |
404 | ,lType | |
405 | ,nWidth | |
406 | ,nHeight | |
407 | ,nDepth | |
408 | )); | |
409 | } | |
410 | ||
411 | bool wxBitmap::SaveFile( | |
412 | const wxString& rFilename | |
413 | , int lType | |
414 | , const wxPalette* pPalette | |
415 | ) | |
416 | { | |
417 | wxBitmapHandler* pHandler = wxDynamicCast( FindHandler(lType) | |
418 | ,wxBitmapHandler | |
419 | ); | |
420 | ||
421 | if (pHandler) | |
422 | { | |
423 | return pHandler->SaveFile( this | |
424 | ,rFilename | |
425 | ,lType | |
426 | ,pPalette | |
427 | ); | |
428 | } | |
429 | else | |
430 | { | |
431 | // FIXME what about palette? shouldn't we use it? | |
432 | wxImage vImage(*this); | |
433 | ||
434 | if (!vImage.Ok()) | |
435 | return(FALSE); | |
436 | ||
437 | return(vImage.SaveFile( rFilename | |
438 | ,lType | |
439 | )); | |
440 | } | |
441 | } | |
442 | ||
443 | // ---------------------------------------------------------------------------- | |
444 | // wxBitmap accessors | |
445 | // ---------------------------------------------------------------------------- | |
446 | ||
447 | void wxBitmap::SetQuality( | |
448 | int nQ | |
449 | ) | |
450 | { | |
451 | EnsureHasData(); | |
452 | ||
453 | GetBitmapData()->m_nQuality = nQ; | |
454 | } | |
455 | ||
456 | #if WXWIN_COMPATIBILITY_2 | |
457 | void wxBitmap::SetOk( | |
458 | bool bOk | |
459 | ) | |
460 | { | |
461 | EnsureHasData(); | |
462 | ||
463 | GetBitmapData()->m_bOk = bOk; | |
464 | } | |
465 | #endif // WXWIN_COMPATIBILITY_2 | |
466 | ||
467 | void wxBitmap::SetPalette( | |
468 | const wxPalette& rPalette | |
469 | ) | |
470 | { | |
471 | EnsureHasData(); | |
472 | ||
473 | GetBitmapData()->m_vBitmapPalette = rPalette; | |
474 | } | |
475 | ||
476 | void wxBitmap::SetMask( | |
477 | wxMask* pMask | |
478 | ) | |
479 | { | |
480 | EnsureHasData(); | |
481 | ||
482 | GetBitmapData()->m_pBitmapMask = pMask; | |
483 | } | |
484 | ||
485 | // Will try something for OS/2 but not really sure how close | |
486 | // to the msw intent this is. | |
487 | wxBitmap wxBitmap::GetBitmapForDC( | |
488 | wxDC& rDc | |
489 | ) const | |
490 | { | |
491 | wxMemoryDC vMemDC; | |
492 | wxBitmap vTmpBitmap( this->GetWidth() | |
493 | ,this->GetHeight() | |
494 | ,rDc.GetDepth() | |
495 | ); | |
496 | WXHBITMAP vOldBitmap; | |
497 | HPS hMemoryPS; | |
498 | HPS hPs; | |
499 | POINTL vPoint[4]; | |
500 | SIZEL vSize = {0,0}; | |
501 | ||
502 | hMemoryPS = ::GpiCreatePS(vHabmain, (HDC)vMemDC.GetHDC(), &vSize, PU_PELS | GPIT_MICRO | GPIA_ASSOC); | |
503 | hPs = ::GpiCreatePS(vHabmain, (HDC)rDc.GetHDC(), &vSize, PU_PELS | GPIT_MICRO | GPIA_ASSOC); | |
504 | ||
505 | // TODO: Set the points | |
506 | ||
507 | vOldBitmap = (WXHBITMAP)::GpiSetBitmap(hPs, (HBITMAP)vTmpBitmap.GetHBITMAP()); | |
508 | ::GpiBitBlt(hPs, hMemoryPS, 4L, vPoint, ROP_SRCCOPY, BBO_IGNORE); | |
509 | ||
510 | return(vTmpBitmap); | |
511 | } | |
512 | ||
513 | // ---------------------------------------------------------------------------- | |
514 | // wxMask | |
515 | // ---------------------------------------------------------------------------- | |
516 | ||
517 | wxMask::wxMask() | |
518 | { | |
519 | m_hMaskBitmap = 0; | |
520 | } | |
521 | ||
522 | // Construct a mask from a bitmap and a colour indicating | |
523 | // the transparent area | |
524 | wxMask::wxMask( | |
525 | const wxBitmap& rBitmap | |
526 | , const wxColour& rColour | |
527 | ) | |
528 | { | |
529 | m_hMaskBitmap = 0; | |
530 | Create( rBitmap | |
531 | ,rColour | |
532 | ); | |
533 | } | |
534 | ||
535 | // Construct a mask from a bitmap and a palette index indicating | |
536 | // the transparent area | |
537 | wxMask::wxMask( | |
538 | const wxBitmap& rBitmap | |
539 | , int nPaletteIndex | |
540 | ) | |
541 | { | |
542 | m_hMaskBitmap = 0; | |
543 | Create( rBitmap | |
544 | ,nPaletteIndex | |
545 | ); | |
546 | } | |
547 | ||
548 | // Construct a mask from a mono bitmap (copies the bitmap). | |
549 | wxMask::wxMask( | |
550 | const wxBitmap& rBitmap | |
551 | ) | |
552 | { | |
553 | m_hMaskBitmap = 0; | |
554 | Create(rBitmap); | |
555 | } | |
556 | ||
557 | wxMask::~wxMask() | |
558 | { | |
559 | if (m_hMaskBitmap) | |
560 | ::GpiDeleteBitmap((HBITMAP)m_hMaskBitmap); | |
561 | } | |
562 | ||
563 | // Create a mask from a mono bitmap (copies the bitmap). | |
564 | bool wxMask::Create( | |
565 | const wxBitmap& rBitmap | |
566 | ) | |
567 | { | |
568 | BITMAPINFOHEADER2 vHeader; | |
569 | DEVOPENSTRUC vDop = { NULL, "DISPLAY", NULL, NULL, NULL, NULL, NULL, NULL, NULL }; | |
570 | SIZEL vSize = {0, 0}; | |
571 | POINTL vPoint[4]; | |
572 | ||
573 | if (m_hMaskBitmap) | |
574 | { | |
575 | ::GpiDeleteBitmap((HBITMAP) m_hMaskBitmap); | |
576 | m_hMaskBitmap = 0; | |
577 | } | |
578 | if (!rBitmap.Ok() || rBitmap.GetDepth() != 1) | |
579 | { | |
580 | return(FALSE); | |
581 | } | |
582 | vHeader.cbFix = sizeof(vHeader); | |
583 | vHeader.cx = (USHORT)rBitmap.GetWidth(); | |
584 | vHeader.cy = (USHORT)rBitmap.GetHeight(); | |
585 | vHeader.cPlanes = 1; | |
586 | vHeader.cBitCount = 1; | |
587 | ||
588 | m_hMaskBitmap = (WXHBITMAP) ::GpiCreateBitmap( m_hPs | |
589 | ,&vHeader | |
590 | ,0L | |
591 | ,NULL | |
592 | ,NULL | |
593 | ); | |
594 | ||
595 | HPS srcPS = ::GpiCreatePS(vHabmain, m_hDc, &vSize, PU_PELS | GPIT_MICRO | GPIA_ASSOC); | |
596 | ::GpiSetBitmap(srcPS, (HBITMAP)rBitmap.GetHBITMAP()); | |
597 | HPS destPS = ::GpiCreatePS(vHabmain, m_hDc, &vSize, PU_PELS | GPIT_MICRO | GPIA_ASSOC); | |
598 | ::GpiSetBitmap(srcPS, (HBITMAP)m_hMaskBitmap); | |
599 | // TODO: Set the point array | |
600 | ::GpiBitBlt(destPS, srcPS, 4L, vPoint, ROP_SRCCOPY , BBO_IGNORE); | |
601 | ||
602 | ::GpiDestroyPS(srcPS); | |
603 | ::GpiDestroyPS(destPS); | |
604 | return(TRUE); | |
605 | } | |
606 | ||
607 | // Create a mask from a bitmap and a palette index indicating | |
608 | // the transparent area | |
609 | bool wxMask::Create( | |
610 | const wxBitmap& rBitmap | |
611 | , int nPaletteIndex | |
612 | ) | |
613 | { | |
614 | if (m_hMaskBitmap) | |
615 | { | |
616 | ::GpiDeleteBitmap((HBITMAP) m_hMaskBitmap); | |
617 | m_hMaskBitmap = 0; | |
618 | } | |
619 | if (rBitmap.Ok() && rBitmap.GetPalette()->Ok()) | |
620 | { | |
621 | unsigned char cRed; | |
622 | unsigned char cGreen; | |
623 | unsigned char cBlue; | |
624 | ||
625 | if (rBitmap.GetPalette()->GetRGB( nPaletteIndex | |
626 | ,&cRed | |
627 | ,&cGreen | |
628 | ,&cBlue | |
629 | )) | |
630 | { | |
631 | wxColour vTransparentColour( cRed | |
632 | ,cGreen | |
633 | ,cBlue | |
634 | ); | |
635 | ||
636 | return (Create( rBitmap | |
637 | ,vTransparentColour | |
638 | )); | |
639 | } | |
640 | } | |
641 | return(FALSE); | |
642 | } | |
643 | ||
644 | // Create a mask from a bitmap and a colour indicating | |
645 | // the transparent area | |
646 | bool wxMask::Create( | |
647 | const wxBitmap& rBitmap | |
648 | , const wxColour& rColour | |
649 | ) | |
650 | { | |
651 | BITMAPINFOHEADER2 vHeader; | |
652 | DEVOPENSTRUC vDop = { NULL, "DISPLAY", NULL, NULL, NULL, NULL, NULL, NULL, NULL }; | |
653 | SIZEL vSize = {0, 0}; | |
654 | POINTL vPoint[4]; | |
655 | ||
656 | if (m_hMaskBitmap) | |
657 | { | |
658 | ::GpiDeleteBitmap((HBITMAP) m_hMaskBitmap); | |
659 | m_hMaskBitmap = 0; | |
660 | } | |
661 | if (!rBitmap.Ok()) | |
662 | { | |
663 | return(FALSE); | |
664 | } | |
665 | ||
666 | // scan the bitmap for the transparent colour and set | |
667 | // the corresponding pixels in the mask to BLACK and | |
668 | // the rest to WHITE | |
669 | COLORREF vMaskColour = OS2RGB(rColour.Red(), rColour.Green(), rColour.Blue()); | |
670 | ||
671 | vHeader.cbFix = sizeof(vHeader); | |
672 | vHeader.cx = (USHORT)rBitmap.GetWidth(); | |
673 | vHeader.cy = (USHORT)rBitmap.GetHeight(); | |
674 | vHeader.cPlanes = 1; | |
675 | vHeader.cBitCount = 1; | |
676 | ||
677 | m_hMaskBitmap = (WXHBITMAP) ::GpiCreateBitmap( m_hPs | |
678 | ,&vHeader | |
679 | ,0L | |
680 | ,NULL | |
681 | ,NULL | |
682 | ); | |
683 | ||
684 | HPS srcPS = ::GpiCreatePS(vHabmain, m_hDc, &vSize, PU_PELS | GPIT_MICRO | GPIA_ASSOC); | |
685 | ::GpiSetBitmap(srcPS, (HBITMAP)rBitmap.GetHBITMAP()); | |
686 | HPS destPS = ::GpiCreatePS(vHabmain, m_hDc, &vSize, PU_PELS | GPIT_MICRO | GPIA_ASSOC); | |
687 | ::GpiSetBitmap(srcPS, (HBITMAP)m_hMaskBitmap); | |
688 | ||
689 | // this is not very efficient, but I can't think | |
690 | // of a better way of doing it | |
691 | for (int w = 0; w < rBitmap.GetWidth(); w++) | |
692 | { | |
693 | for (int h = 0; h < rBitmap.GetHeight(); h++) | |
694 | { | |
695 | POINTL vPoint; | |
696 | ||
697 | vPoint.x = w; | |
698 | vPoint.y = h; | |
699 | ||
700 | COLORREF col = ::GpiQueryPel(srcPS, &vPoint); | |
701 | ||
702 | if (col == vMaskColour) | |
703 | { | |
704 | ::GpiSetColor(destPS, CLR_WHITE); | |
705 | ::GpiSetPel(destPS, &vPoint); | |
706 | } | |
707 | else | |
708 | { | |
709 | ::GpiSetColor(destPS, CLR_BLACK); | |
710 | ::GpiSetPel(destPS, &vPoint); | |
711 | } | |
712 | } | |
713 | } | |
714 | ::GpiDestroyPS(srcPS); | |
715 | ::GpiDestroyPS(destPS); | |
716 | return(TRUE); | |
717 | } | |
718 | ||
719 | // ---------------------------------------------------------------------------- | |
720 | // wxBitmapHandler | |
721 | // ---------------------------------------------------------------------------- | |
722 | ||
723 | bool wxBitmapHandler::Create( | |
724 | wxGDIImage* pImage | |
725 | , void* pData | |
726 | , long lFlags | |
727 | , int nWidth | |
728 | , int nHeight | |
729 | , int nDepth | |
730 | ) | |
731 | { | |
732 | wxBitmap* pBitmap = wxDynamicCast( pImage | |
733 | ,wxBitmap | |
734 | ); | |
735 | ||
736 | return(pBitmap ? Create( pBitmap | |
737 | ,pData | |
738 | ,nWidth | |
739 | ,nHeight | |
740 | ,nDepth | |
741 | ) : FALSE); | |
742 | } | |
743 | ||
744 | bool wxBitmapHandler::Load( | |
745 | wxGDIImage* pImage | |
746 | , const wxString& rName | |
747 | , long lFlags | |
748 | , int nWidth | |
749 | , int nHeight | |
750 | ) | |
751 | { | |
752 | wxBitmap* pBitmap = wxDynamicCast( pImage | |
753 | ,wxBitmap | |
754 | ); | |
755 | ||
756 | return(pBitmap ? LoadFile( pBitmap | |
757 | ,rName | |
758 | ,lFlags | |
759 | ,nWidth | |
760 | ,nHeight | |
761 | ) : FALSE); | |
762 | } | |
763 | ||
764 | bool wxBitmapHandler::Save( | |
765 | wxGDIImage* pImage | |
766 | , const wxString& rName | |
767 | , int lType | |
768 | ) | |
769 | { | |
770 | wxBitmap* pBitmap = wxDynamicCast( pImage | |
771 | ,wxBitmap | |
772 | ); | |
773 | ||
774 | return(pBitmap ? SaveFile( pBitmap | |
775 | ,rName | |
776 | ,lType | |
777 | ) : FALSE); | |
778 | } | |
779 | ||
780 | bool wxBitmapHandler::Create( | |
781 | wxBitmap* WXUNUSED(pBitmap) | |
782 | , void* WXUNUSED(pData) | |
783 | , long WXUNUSED(lType) | |
784 | , int WXUNUSED(nWidth) | |
785 | , int WXUNUSED(nHeight) | |
786 | , int WXUNUSED(nDepth) | |
787 | ) | |
788 | { | |
789 | return(FALSE); | |
790 | } | |
791 | ||
792 | bool wxBitmapHandler::LoadFile( | |
793 | wxBitmap* WXUNUSED(pBitmap) | |
794 | , const wxString& WXUNUSED(rName) | |
795 | , long WXUNUSED(lType) | |
796 | , int WXUNUSED(nDesiredWidth) | |
797 | , int WXUNUSED(nDesiredHeight) | |
798 | ) | |
799 | { | |
800 | return(FALSE); | |
801 | } | |
802 | ||
803 | bool wxBitmapHandler::SaveFile( | |
804 | wxBitmap* WXUNUSED(pBitmap) | |
805 | , const wxString& WXUNUSED(rName) | |
806 | , int WXUNUSED(nType) | |
807 | , const wxPalette* WXUNUSED(pPalette) | |
808 | ) | |
809 | { | |
810 | return(FALSE); | |
811 | } | |
812 |