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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 | #include "wx/xpmdecod.h" | |
33 | ||
34 | // ---------------------------------------------------------------------------- | |
35 | // macros | |
36 | // ---------------------------------------------------------------------------- | |
37 | ||
38 | IMPLEMENT_DYNAMIC_CLASS(wxBitmap, wxGDIObject) | |
39 | IMPLEMENT_DYNAMIC_CLASS(wxMask, wxObject) | |
40 | ||
41 | IMPLEMENT_DYNAMIC_CLASS(wxBitmapHandler, wxObject) | |
42 | ||
43 | // ============================================================================ | |
44 | // implementation | |
45 | // ============================================================================ | |
46 | ||
47 | // ---------------------------------------------------------------------------- | |
48 | // wxBitmapRefData | |
49 | // ---------------------------------------------------------------------------- | |
50 | ||
51 | wxBitmapRefData::wxBitmapRefData() | |
52 | { | |
53 | m_nQuality = 0; | |
54 | m_pSelectedInto = NULL; | |
55 | m_nNumColors = 0; | |
56 | m_pBitmapMask = NULL; | |
57 | m_hBitmap = (WXHBITMAP) NULL; | |
58 | } // end of wxBitmapRefData::wxBitmapRefData | |
59 | ||
60 | void wxBitmapRefData::Free() | |
61 | { | |
62 | if ( m_pSelectedInto ) | |
63 | { | |
64 | wxLogLastError(wxT("GpiDeleteBitmap(hbitmap)")); | |
65 | } | |
66 | if (m_hBitmap) | |
67 | { | |
68 | if (!::GpiDeleteBitmap((HBITMAP)m_hBitmap)) | |
69 | { | |
70 | wxLogLastError(wxT("GpiDeleteBitmap(hbitmap)")); | |
71 | } | |
72 | } | |
73 | if (m_pBitmapMask) | |
74 | { | |
75 | delete m_pBitmapMask; | |
76 | m_pBitmapMask = NULL; | |
77 | } | |
78 | } // end of wxBitmapRefData::Free | |
79 | ||
80 | // ---------------------------------------------------------------------------- | |
81 | // wxBitmap creation | |
82 | // ---------------------------------------------------------------------------- | |
83 | ||
84 | // this function should be called from all wxBitmap ctors | |
85 | void wxBitmap::Init() | |
86 | { | |
87 | m_bIsMono = false; | |
88 | // | |
89 | // True for all bitmaps created from bits, wxImages, Xpms | |
90 | // | |
91 | } // end of wxBitmap::Init | |
92 | ||
93 | bool wxBitmap::CopyFromIconOrCursor( | |
94 | const wxGDIImage& rIcon | |
95 | ) | |
96 | { | |
97 | HPOINTER hIcon = (HPOINTER)rIcon.GetHandle(); | |
98 | POINTERINFO SIconInfo; | |
99 | ||
100 | if (!::WinQueryPointerInfo(hIcon, &SIconInfo)) | |
101 | { | |
102 | wxLogLastError(wxT("WinQueryPointerInfo")); | |
103 | return false; | |
104 | } | |
105 | wxBitmapRefData* pRefData = new wxBitmapRefData; | |
106 | ||
107 | m_refData = pRefData; | |
108 | ||
109 | int nWidth = rIcon.GetWidth(); | |
110 | int nHeight = rIcon.GetHeight(); | |
111 | ||
112 | pRefData->m_nWidth = nWidth; | |
113 | pRefData->m_nHeight = nHeight; | |
114 | pRefData->m_nDepth = wxDisplayDepth(); | |
115 | ||
116 | pRefData->m_hBitmap = (WXHBITMAP)SIconInfo.hbmColor; | |
117 | ||
118 | wxMask* pMask = new wxMask(SIconInfo.hbmPointer); | |
119 | ||
120 | pMask->SetMaskBitmap(GetHBITMAP()); | |
121 | SetMask(pMask); | |
122 | ||
123 | return true; | |
124 | } // end of wxBitmap::CopyFromIconOrCursor | |
125 | ||
126 | bool wxBitmap::CopyFromCursor( | |
127 | const wxCursor& rCursor | |
128 | ) | |
129 | { | |
130 | UnRef(); | |
131 | ||
132 | if (!rCursor.Ok()) | |
133 | return(false); | |
134 | return(CopyFromIconOrCursor(rCursor)); | |
135 | } // end of wxBitmap::CopyFromCursor | |
136 | ||
137 | bool wxBitmap::CopyFromIcon( | |
138 | const wxIcon& rIcon | |
139 | ) | |
140 | { | |
141 | UnRef(); | |
142 | ||
143 | if (!rIcon.Ok()) | |
144 | return(false); | |
145 | ||
146 | return CopyFromIconOrCursor(rIcon); | |
147 | } // end of wxBitmap::CopyFromIcon | |
148 | ||
149 | wxBitmap::~wxBitmap() | |
150 | { | |
151 | } // end of wxBitmap::~wxBitmap | |
152 | ||
153 | wxBitmap::wxBitmap( | |
154 | const char zBits[] | |
155 | , int nWidth | |
156 | , int nHeight | |
157 | , int nDepth | |
158 | ) | |
159 | { | |
160 | Init(); | |
161 | ||
162 | wxBitmapRefData* pRefData = new wxBitmapRefData; | |
163 | BITMAPINFOHEADER2 vHeader; | |
164 | BITMAPINFO2 vInfo; | |
165 | HDC hDc; | |
166 | HPS hPs; | |
167 | DEVOPENSTRUC vDop = { NULL, "DISPLAY", NULL, NULL, NULL, NULL, NULL, NULL, NULL }; | |
168 | SIZEL vSize = {0, 0}; | |
169 | char* pzData; | |
170 | ||
171 | wxASSERT(vHabmain != NULL); | |
172 | ||
173 | m_refData = pRefData; | |
174 | ||
175 | pRefData->m_nWidth = nWidth; | |
176 | pRefData->m_nHeight = nHeight; | |
177 | pRefData->m_nDepth = nDepth; | |
178 | pRefData->m_nNumColors = 0; | |
179 | pRefData->m_pSelectedInto = NULL; | |
180 | ||
181 | hDc = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE); | |
182 | hPs = ::GpiCreatePS(vHabmain, hDc, &vSize, GPIA_ASSOC | PU_PELS); | |
183 | if (hPs == 0) | |
184 | { | |
185 | wxLogLastError(wxT("GpiCreatePS Failure")); | |
186 | } | |
187 | ||
188 | if (nDepth == 1) | |
189 | { | |
190 | // | |
191 | // We assume that it is in XBM format which is not quite the same as | |
192 | // the format CreateBitmap() wants because the order of bytes in the | |
193 | // line is reversed! | |
194 | // | |
195 | const size_t nBytesPerLine = (nWidth + 7) / 8; | |
196 | const size_t nPadding = nBytesPerLine % 2; | |
197 | const size_t nLen = nHeight * (nPadding + nBytesPerLine); | |
198 | const char* pzSrc = zBits; | |
199 | int nRows; | |
200 | size_t nCols; | |
201 | ||
202 | pzData = (char *)malloc(nLen); | |
203 | ||
204 | char* pzDst = pzData; | |
205 | ||
206 | for (nRows = 0; nRows < nHeight; nRows++) | |
207 | { | |
208 | for (nCols = 0; nCols < nBytesPerLine; nCols++) | |
209 | { | |
210 | unsigned char ucVal = *pzSrc++; | |
211 | unsigned char ucReversed = 0; | |
212 | int nBits; | |
213 | ||
214 | for (nBits = 0; nBits < 8; nBits++) | |
215 | { | |
216 | ucReversed <<= 1; | |
217 | ucReversed = (unsigned char)(ucReversed | (ucVal & 0x01)); | |
218 | ucVal >>= 1; | |
219 | } | |
220 | *pzDst++ = ucReversed; | |
221 | } | |
222 | if (nPadding) | |
223 | *pzDst++ = 0; | |
224 | } | |
225 | } | |
226 | else | |
227 | { | |
228 | // | |
229 | // Bits should already be in Windows standard format | |
230 | // | |
231 | pzData = (char *)zBits; // const_cast is harmless | |
232 | } | |
233 | ||
234 | if (nDepth > 24) | |
235 | nDepth = 24; // MAX supported in PM | |
236 | memset(&vHeader, '\0', 16); | |
237 | vHeader.cbFix = 16; | |
238 | vHeader.cx = (USHORT)nWidth; | |
239 | vHeader.cy = (USHORT)nHeight; | |
240 | vHeader.cPlanes = 1L; | |
241 | vHeader.cBitCount = (USHORT)nDepth; | |
242 | vHeader.usReserved = 0; | |
243 | ||
244 | memset(&vInfo, '\0', 16); | |
245 | vInfo.cbFix = 16; | |
246 | vInfo.cx = (USHORT)nWidth; | |
247 | vInfo.cy = (USHORT)nHeight; | |
248 | vInfo.cPlanes = 1L; | |
249 | vInfo.cBitCount = (USHORT)nDepth; | |
250 | ||
251 | HBITMAP hBmp = ::GpiCreateBitmap(hPs, &vHeader, CBM_INIT, (PBYTE)pzData, &vInfo); | |
252 | ||
253 | if (!hBmp) | |
254 | { | |
255 | wxLogLastError(wxT("CreateBitmap")); | |
256 | } | |
257 | ::GpiDestroyPS(hPs); | |
258 | ::DevCloseDC(hDc); | |
259 | SetHBITMAP((WXHBITMAP)hBmp); | |
260 | } // end of wxBitmap::wxBitmap | |
261 | ||
262 | wxBitmap::wxBitmap( | |
263 | int nW | |
264 | , int nH | |
265 | , int nD | |
266 | ) | |
267 | { | |
268 | Init(); | |
269 | (void)Create( nW | |
270 | ,nH | |
271 | ,nD | |
272 | ); | |
273 | } // end of wxBitmap::wxBitmap | |
274 | ||
275 | wxBitmap::wxBitmap( | |
276 | void* pData | |
277 | , long lType | |
278 | , int nWidth | |
279 | , int nHeight | |
280 | , int nDepth | |
281 | ) | |
282 | { | |
283 | Init(); | |
284 | ||
285 | (void)Create( pData | |
286 | ,lType | |
287 | ,nWidth | |
288 | ,nHeight | |
289 | ,nDepth | |
290 | ); | |
291 | } // end of wxBitmap::wxBitmap | |
292 | ||
293 | wxBitmap::wxBitmap( | |
294 | int nId | |
295 | , long lType | |
296 | ) | |
297 | { | |
298 | Init(); | |
299 | LoadFile( nId | |
300 | ,(int)lType | |
301 | ); | |
302 | SetId(nId); | |
303 | } // end of wxBitmap::wxBitmap | |
304 | ||
305 | bool wxBitmap::Create( | |
306 | int nW | |
307 | , int nH | |
308 | , int nD | |
309 | ) | |
310 | { | |
311 | HBITMAP hBmp; | |
312 | BITMAPINFOHEADER2 vHeader; | |
313 | ||
314 | wxASSERT(vHabmain != NULL); | |
315 | UnRef(); | |
316 | m_refData = new wxBitmapRefData; | |
317 | GetBitmapData()->m_nWidth = nW; | |
318 | GetBitmapData()->m_nHeight = nH; | |
319 | GetBitmapData()->m_nDepth = nD; | |
320 | ||
321 | // | |
322 | // Xpms and bitmaps from other images can also be mono's, but only | |
323 | // mono's need help changing their colors with MemDC changes | |
324 | // | |
325 | if (nD > 0) | |
326 | { | |
327 | DEVOPENSTRUC vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L}; | |
328 | SIZEL vSize = {0, 0}; | |
329 | HDC hDC = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE); | |
330 | HPS hPS = ::GpiCreatePS(vHabmain, hDC, &vSize, PU_PELS | GPIA_ASSOC); | |
331 | ||
332 | if (nD == 1) | |
333 | m_bIsMono = true; | |
334 | memset(&vHeader, '\0', 16); | |
335 | vHeader.cbFix = 16; | |
336 | vHeader.cx = nW; | |
337 | vHeader.cy = nH; | |
338 | vHeader.cPlanes = 1; | |
339 | vHeader.cBitCount = 24; //nD; | |
340 | ||
341 | hBmp = ::GpiCreateBitmap( hPS | |
342 | ,&vHeader | |
343 | ,0L | |
344 | ,NULL | |
345 | ,NULL | |
346 | ); | |
347 | ::GpiDestroyPS(hPS); | |
348 | ::DevCloseDC(hDC); | |
349 | } | |
350 | else | |
351 | { | |
352 | HPS hPSScreen; | |
353 | HDC hDCScreen; | |
354 | LONG lBitCount; | |
355 | ||
356 | hPSScreen = ::WinGetScreenPS(HWND_DESKTOP); | |
357 | hDCScreen = ::GpiQueryDevice(hPSScreen); | |
358 | ::DevQueryCaps(hDCScreen, CAPS_COLOR_BITCOUNT, 1L, &lBitCount); | |
359 | ||
360 | if (lBitCount > 24) | |
361 | lBitCount = 24; | |
362 | ||
363 | memset(&vHeader, '\0', 16); | |
364 | vHeader.cbFix = 16; | |
365 | vHeader.cx = nW; | |
366 | vHeader.cy = nH; | |
367 | vHeader.cPlanes = 1; | |
368 | vHeader.cBitCount = (USHORT)lBitCount; | |
369 | ||
370 | hBmp = ::GpiCreateBitmap( hPSScreen | |
371 | ,&vHeader | |
372 | ,0L | |
373 | ,NULL | |
374 | ,NULL | |
375 | ); | |
376 | ||
377 | GetBitmapData()->m_nDepth = wxDisplayDepth(); | |
378 | ::WinReleasePS(hPSScreen); | |
379 | } | |
380 | SetHBITMAP((WXHBITMAP)hBmp); | |
381 | ||
382 | return Ok(); | |
383 | } // end of wxBitmap::Create | |
384 | ||
385 | bool wxBitmap::CreateFromXpm( | |
386 | const char** ppData | |
387 | ) | |
388 | { | |
389 | #if wxUSE_IMAGE && wxUSE_XPM | |
390 | Init(); | |
391 | ||
392 | wxCHECK_MSG(ppData != NULL, false, wxT("invalid bitmap data")) | |
393 | ||
394 | wxXPMDecoder vDecoder; | |
395 | wxImage vImg = vDecoder.ReadData(ppData); | |
396 | ||
397 | wxCHECK_MSG(vImg.Ok(), false, wxT("invalid bitmap data")) | |
398 | ||
399 | *this = wxBitmap(vImg); | |
400 | return true; | |
401 | #else | |
402 | return false; | |
403 | #endif | |
404 | } // end of wxBitmap::CreateFromXpm | |
405 | ||
406 | bool wxBitmap::LoadFile(const wxString& filename, long type) | |
407 | { | |
408 | UnRef(); | |
409 | ||
410 | wxBitmapHandler *handler = wxDynamicCast(FindHandler(type), wxBitmapHandler); | |
411 | ||
412 | if ( handler ) | |
413 | { | |
414 | m_refData = new wxBitmapRefData; | |
415 | ||
416 | return handler->LoadFile(this, filename, type, -1, -1); | |
417 | } | |
418 | #if wxUSE_IMAGE | |
419 | else // no bitmap handler found | |
420 | { | |
421 | wxImage image; | |
422 | if ( image.LoadFile( filename, type ) && image.Ok() ) | |
423 | { | |
424 | *this = wxBitmap(image); | |
425 | ||
426 | return true; | |
427 | } | |
428 | } | |
429 | #endif // wxUSE_IMAGE | |
430 | ||
431 | return false; | |
432 | } | |
433 | ||
434 | bool wxBitmap::LoadFile( | |
435 | int nId | |
436 | , long lType | |
437 | ) | |
438 | { | |
439 | UnRef(); | |
440 | ||
441 | wxBitmapHandler* pHandler = wxDynamicCast( FindHandler(lType) | |
442 | ,wxBitmapHandler | |
443 | ); | |
444 | ||
445 | if (pHandler) | |
446 | { | |
447 | m_refData = new wxBitmapRefData; | |
448 | ||
449 | return(pHandler->LoadFile( this | |
450 | ,nId | |
451 | ,lType | |
452 | , -1 | |
453 | , -1 | |
454 | )); | |
455 | } | |
456 | else | |
457 | { | |
458 | return false; | |
459 | } | |
460 | } // end of wxBitmap::LoadFile | |
461 | ||
462 | bool wxBitmap::Create( | |
463 | void* pData | |
464 | , long lType | |
465 | , int nWidth | |
466 | , int nHeight | |
467 | , int nDepth | |
468 | ) | |
469 | { | |
470 | UnRef(); | |
471 | ||
472 | wxBitmapHandler* pHandler = wxDynamicCast( FindHandler(lType) | |
473 | ,wxBitmapHandler | |
474 | ); | |
475 | ||
476 | if (!pHandler) | |
477 | { | |
478 | wxLogDebug(wxT("Failed to create bitmap: no bitmap handler for type %ld defined."), lType); | |
479 | ||
480 | return false; | |
481 | } | |
482 | ||
483 | m_refData = new wxBitmapRefData; | |
484 | ||
485 | return(pHandler->Create( this | |
486 | ,pData | |
487 | ,lType | |
488 | ,nWidth | |
489 | ,nHeight | |
490 | ,nDepth | |
491 | )); | |
492 | } // end of wxBitmap::Create | |
493 | ||
494 | bool wxBitmap::SaveFile( | |
495 | const wxString& rFilename | |
496 | , int lType | |
497 | , const wxPalette* pPalette | |
498 | ) | |
499 | { | |
500 | wxBitmapHandler* pHandler = wxDynamicCast( FindHandler(lType) | |
501 | ,wxBitmapHandler | |
502 | ); | |
503 | ||
504 | if (pHandler) | |
505 | { | |
506 | return pHandler->SaveFile( this | |
507 | ,rFilename | |
508 | ,lType | |
509 | ,pPalette | |
510 | ); | |
511 | } | |
512 | else | |
513 | { | |
514 | // FIXME what about palette? shouldn't we use it? | |
515 | wxImage vImage = ConvertToImage(); | |
516 | ||
517 | if (!vImage.Ok()) | |
518 | return false; | |
519 | ||
520 | return(vImage.SaveFile( rFilename | |
521 | ,lType | |
522 | )); | |
523 | } | |
524 | } // end of wxBitmap::SaveFile | |
525 | ||
526 | ||
527 | // ---------------------------------------------------------------------------- | |
528 | // wxImage-wxBitmap conversion | |
529 | // ---------------------------------------------------------------------------- | |
530 | ||
531 | bool wxBitmap::CreateFromImage ( | |
532 | const wxImage& rImage | |
533 | , int nDepth | |
534 | ) | |
535 | { | |
536 | wxCHECK_MSG(rImage.Ok(), false, wxT("invalid image")); | |
537 | m_refData = new wxBitmapRefData(); | |
538 | ||
539 | int nSizeLimit = 1024 * 768 * 3; | |
540 | int nWidth = rImage.GetWidth(); | |
541 | int nBmpHeight = rImage.GetHeight(); | |
542 | int nBytePerLine = nWidth * 3; | |
543 | int nSizeDWORD = sizeof(DWORD); | |
544 | int nLineBoundary = nBytePerLine % nSizeDWORD; | |
545 | int nPadding = 0; | |
546 | ||
547 | if (nLineBoundary > 0) | |
548 | { | |
549 | nPadding = nSizeDWORD - nLineBoundary; | |
550 | nBytePerLine += nPadding; | |
551 | } | |
552 | ||
553 | // | |
554 | // Calc the number of DIBs and heights of DIBs | |
555 | // | |
556 | int nNumDIB = 1; | |
557 | int nHRemain = 0; | |
558 | int nHeight = nSizeLimit / nBytePerLine; | |
559 | ||
560 | if (nHeight >= nBmpHeight) | |
561 | nHeight = nBmpHeight; | |
562 | else | |
563 | { | |
564 | nNumDIB = nBmpHeight / nHeight; | |
565 | nHRemain = nBmpHeight % nHeight; | |
566 | if (nHRemain > 0) | |
567 | nNumDIB++; | |
568 | } | |
569 | ||
570 | // | |
571 | // Set bitmap parameters | |
572 | // | |
573 | wxCHECK_MSG(rImage.Ok(), false, wxT("invalid image")); | |
574 | SetWidth(nWidth); | |
575 | SetHeight(nBmpHeight); | |
576 | if (nDepth == 1) | |
577 | m_bIsMono = true; | |
578 | else | |
579 | m_bIsMono = false; | |
580 | if (nDepth == -1) | |
581 | nDepth = wxDisplayDepth(); | |
582 | SetDepth(nDepth); | |
583 | ||
584 | #if wxUSE_PALETTE | |
585 | // | |
586 | // Copy the palette from the source image | |
587 | // | |
588 | SetPalette(rImage.GetPalette()); | |
589 | #endif // wxUSE_PALETTE | |
590 | ||
591 | // | |
592 | // Create a DIB header | |
593 | // | |
594 | BITMAPINFOHEADER2 vHeader; | |
595 | BITMAPINFO2 vInfo; | |
596 | ||
597 | // | |
598 | // Fill in the DIB header | |
599 | // | |
600 | memset(&vHeader, '\0', 16); | |
601 | vHeader.cbFix = 16; | |
602 | vHeader.cx = (ULONG)nWidth; | |
603 | vHeader.cy = (ULONG)nHeight; | |
604 | vHeader.cPlanes = 1L; | |
605 | vHeader.cBitCount = 24; | |
606 | ||
607 | // | |
608 | // Memory for DIB data | |
609 | // | |
610 | unsigned char* pucBits; | |
611 | ||
612 | pucBits = (unsigned char *)malloc(nBytePerLine * nHeight); | |
613 | if(!pucBits) | |
614 | { | |
615 | wxFAIL_MSG(wxT("could not allocate memory for DIB")); | |
616 | return false; | |
617 | } | |
618 | memset(pucBits, '\0', (nBytePerLine * nHeight)); | |
619 | ||
620 | // | |
621 | // Create and set the device-dependent bitmap | |
622 | // | |
623 | DEVOPENSTRUC vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L}; | |
624 | SIZEL vSize = {0, 0}; | |
625 | HDC hDC = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE); | |
626 | HPS hPS = ::GpiCreatePS(vHabmain, hDC, &vSize, PU_PELS | GPIA_ASSOC); | |
627 | LONG lScans; | |
628 | HDC hDCScreen = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE); | |
629 | HPS hPSScreen; | |
630 | HBITMAP hBmp; | |
631 | HBITMAP hBmpOld; | |
632 | ||
633 | memset(&vInfo, '\0', 16); | |
634 | vInfo.cbFix = 16; | |
635 | vInfo.cx = (ULONG)nWidth; | |
636 | vInfo.cy = (ULONG)nHeight; | |
637 | vInfo.cPlanes = 1; | |
638 | vInfo.cBitCount = 24; // Set to desired count going in | |
639 | ||
640 | hBmp = ::GpiCreateBitmap( hPS | |
641 | ,&vHeader | |
642 | ,0L | |
643 | ,NULL | |
644 | ,NULL | |
645 | ); | |
646 | #if wxUSE_PALETTE | |
647 | HPAL hOldPalette = NULLHANDLE; | |
648 | if (rImage.GetPalette().Ok()) | |
649 | { | |
650 | hOldPalette = ::GpiSelectPalette(hPS, (HPAL)rImage.GetPalette().GetHPALETTE()); | |
651 | } | |
652 | #endif // wxUSE_PALETTE | |
653 | ||
654 | // | |
655 | // Copy image data into DIB data and then into DDB (in a loop) | |
656 | // | |
657 | unsigned char* pData = rImage.GetData(); | |
658 | int i; | |
659 | int j; | |
660 | int n; | |
661 | int nOrigin = 0; | |
662 | unsigned char* ptdata = pData; | |
663 | unsigned char* ptbits; | |
664 | ||
665 | if ((hBmpOld = ::GpiSetBitmap(hPS, hBmp)) == HBM_ERROR) | |
666 | { | |
667 | ERRORID vError; | |
668 | wxString sError; | |
669 | ||
670 | vError = ::WinGetLastError(vHabmain); | |
671 | sError = wxPMErrorToStr(vError); | |
672 | } | |
673 | for (n = 0; n < nNumDIB; n++) | |
674 | { | |
675 | if (nNumDIB > 1 && n == nNumDIB - 1 && nHRemain > 0) | |
676 | { | |
677 | // | |
678 | // Redefine height and size of the (possibly) last smaller DIB | |
679 | // memory is not reallocated | |
680 | // | |
681 | nHeight = nHRemain; | |
682 | vHeader.cy = (DWORD)(nHeight); | |
683 | vHeader.cbImage = nBytePerLine * nHeight; | |
684 | } | |
685 | ptbits = pucBits; | |
686 | for (j = 0; j < nHeight; j++) | |
687 | { | |
688 | for (i = 0; i < nWidth; i++) | |
689 | { | |
690 | *(ptbits++) = *(ptdata + 2); | |
691 | *(ptbits++) = *(ptdata + 1); | |
692 | *(ptbits++) = *(ptdata); | |
693 | ptdata += 3; | |
694 | } | |
695 | for (i = 0; i < nPadding; i++) | |
696 | *(ptbits++) = 0; | |
697 | } | |
698 | ||
699 | // | |
700 | // Have to do something similar to WIN32's StretchDIBits, use GpiBitBlt | |
701 | // in combination with setting the bits into the selected bitmap | |
702 | // | |
703 | if ((lScans = ::GpiSetBitmapBits( hPS | |
704 | ,0 // Start at the bottom | |
705 | ,(LONG)nHeight // One line per scan | |
706 | ,(PBYTE)pucBits | |
707 | ,&vInfo | |
708 | )) == GPI_ALTERROR) | |
709 | { | |
710 | ERRORID vError; | |
711 | wxString sError; | |
712 | ||
713 | vError = ::WinGetLastError(vHabmain); | |
714 | sError = wxPMErrorToStr(vError); | |
715 | } | |
716 | hPSScreen = ::GpiCreatePS( vHabmain | |
717 | ,hDCScreen | |
718 | ,&vSize | |
719 | ,PU_PELS | GPIA_ASSOC | |
720 | ); | |
721 | ||
722 | POINTL vPoint[4] = { {0, nOrigin}, | |
723 | {nWidth, nHeight}, | |
724 | {0, 0}, {nWidth, nHeight} | |
725 | }; | |
726 | ||
727 | ||
728 | ::GpiBitBlt( hPSScreen | |
729 | ,hPS | |
730 | ,4 | |
731 | ,vPoint | |
732 | ,ROP_SRCCOPY | |
733 | ,BBO_IGNORE | |
734 | ); | |
735 | ::GpiDestroyPS(hPSScreen); | |
736 | nOrigin += nHeight; | |
737 | } | |
738 | SetHBITMAP((WXHBITMAP)hBmp); | |
739 | #if wxUSE_PALETTE | |
740 | if (hOldPalette) | |
741 | ::GpiSelectPalette(hPS, hOldPalette); | |
742 | #endif // wxUSE_PALETTE | |
743 | ||
744 | // | |
745 | // Similarly, created an mono-bitmap for the possible mask | |
746 | // | |
747 | if (rImage.HasMask()) | |
748 | { | |
749 | vHeader.cbFix = 16; | |
750 | vHeader.cx = nWidth; | |
751 | vHeader.cy = nHeight; | |
752 | vHeader.cPlanes = 1; | |
753 | vHeader.cBitCount = 24; | |
754 | hBmp = ::GpiCreateBitmap( hPS | |
755 | ,&vHeader | |
756 | ,0L | |
757 | ,NULL | |
758 | ,NULL | |
759 | ); | |
760 | hBmpOld = ::GpiSetBitmap(hPS, hBmp); | |
761 | if (nNumDIB == 1) | |
762 | nHeight = nBmpHeight; | |
763 | else | |
764 | nHeight = nSizeLimit / nBytePerLine; | |
765 | vHeader.cy = (DWORD)(nHeight); | |
766 | nOrigin = 0; | |
767 | ||
768 | unsigned char cRed = rImage.GetMaskRed(); | |
769 | unsigned char cGreen = rImage.GetMaskGreen(); | |
770 | unsigned char cBlue = rImage.GetMaskBlue(); | |
771 | unsigned char cZero = 0; | |
772 | unsigned char cOne = 255; | |
773 | ||
774 | ptdata = pData; | |
775 | for (n = 0; n < nNumDIB; n++) | |
776 | { | |
777 | if (nNumDIB > 1 && n == nNumDIB - 1 && nHRemain > 0) | |
778 | { | |
779 | // | |
780 | // Redefine height and size of the (possibly) last smaller DIB | |
781 | // memory is not reallocated | |
782 | // | |
783 | nHeight = nHRemain; | |
784 | vHeader.cy = (DWORD)(nHeight); | |
785 | vHeader.cbImage = nBytePerLine * nHeight; | |
786 | } | |
787 | ptbits = pucBits; | |
788 | for (int j = 0; j < nHeight; j++) | |
789 | { | |
790 | for (i = 0; i < nWidth; i++) | |
791 | { | |
792 | unsigned char cRedImage = (*(ptdata++)) ; | |
793 | unsigned char cGreenImage = (*(ptdata++)) ; | |
794 | unsigned char cBlueImage = (*(ptdata++)) ; | |
795 | ||
796 | if ((cRedImage != cRed) || (cGreenImage != cGreen) || (cBlueImage != cBlue)) | |
797 | { | |
798 | *(ptbits++) = cOne; | |
799 | *(ptbits++) = cOne; | |
800 | *(ptbits++) = cOne; | |
801 | } | |
802 | else | |
803 | { | |
804 | *(ptbits++) = cZero; | |
805 | *(ptbits++) = cZero; | |
806 | *(ptbits++) = cZero; | |
807 | } | |
808 | } | |
809 | for (i = 0; i < nPadding; i++) | |
810 | *(ptbits++) = cZero; | |
811 | } | |
812 | lScans = ::GpiSetBitmapBits( hPS | |
813 | ,0 // Start at the bottom | |
814 | ,(LONG)nHeight // One line per scan | |
815 | ,(PBYTE)pucBits | |
816 | ,&vInfo | |
817 | ); | |
818 | hPSScreen = ::GpiCreatePS( vHabmain | |
819 | ,hDCScreen | |
820 | ,&vSize | |
821 | ,PU_PELS | GPIA_ASSOC | |
822 | ); | |
823 | POINTL vPoint2[4] = { {0, nOrigin}, | |
824 | {nWidth, nHeight}, | |
825 | {0, 0}, {nWidth, nHeight} | |
826 | }; | |
827 | ::GpiBitBlt( hPSScreen | |
828 | ,hPS | |
829 | ,4 | |
830 | ,vPoint2 | |
831 | ,ROP_SRCCOPY | |
832 | ,BBO_IGNORE | |
833 | ); | |
834 | ::GpiDestroyPS(hPSScreen); | |
835 | nOrigin += nHeight; | |
836 | } | |
837 | ||
838 | // | |
839 | // Create a wxMask object | |
840 | // | |
841 | wxMask* pMask = new wxMask(); | |
842 | ||
843 | pMask->SetMaskBitmap((WXHBITMAP)hBmp); | |
844 | SetMask(pMask); | |
845 | hBmpOld = ::GpiSetBitmap(hPS, hBmpOld); | |
846 | } | |
847 | ||
848 | // | |
849 | // Free allocated resources | |
850 | // | |
851 | ::GpiSetBitmap(hPS, NULLHANDLE); | |
852 | ::GpiDestroyPS(hPS); | |
853 | ::DevCloseDC(hDCScreen); | |
854 | ::DevCloseDC(hDC); | |
855 | free(pucBits); | |
856 | return true; | |
857 | } // end of wxBitmap::CreateFromImage | |
858 | ||
859 | wxImage wxBitmap::ConvertToImage() const | |
860 | { | |
861 | wxImage vImage; | |
862 | wxDC* pDC; | |
863 | ||
864 | wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") ); | |
865 | ||
866 | // | |
867 | // Create an wxImage object | |
868 | // | |
869 | int nWidth = GetWidth(); | |
870 | int nHeight = GetHeight(); | |
871 | int nDevWidth; | |
872 | int nDevHeight; | |
873 | int nBytePerLine = nWidth * 3; | |
874 | int nSizeDWORD = sizeof(DWORD); | |
875 | int nLineBoundary = nBytePerLine % nSizeDWORD; | |
876 | int nPadding = 0; | |
877 | unsigned char* pData; | |
878 | unsigned char* lpBits; | |
879 | long lScans; | |
880 | BITMAPINFOHEADER2 vDIBh; | |
881 | BITMAPINFO2 vDIBInfo; | |
882 | HPS hPSMem; | |
883 | HBITMAP hBitmap; | |
884 | HBITMAP hOldBitmap; | |
885 | DEVOPENSTRUC vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L}; | |
886 | SIZEL vSizlPage = {0,0}; | |
887 | HDC hDCMem = NULLHANDLE; | |
888 | ||
889 | vImage.Create( nWidth | |
890 | ,nHeight | |
891 | ); | |
892 | pData = vImage.GetData(); | |
893 | if(!pData) | |
894 | { | |
895 | wxFAIL_MSG( wxT("could not allocate data for image") ); | |
896 | return wxNullImage; | |
897 | } | |
898 | if(nLineBoundary > 0) | |
899 | { | |
900 | nPadding = nSizeDWORD - nLineBoundary; | |
901 | nBytePerLine += nPadding; | |
902 | } | |
903 | wxDisplaySize( &nDevWidth | |
904 | ,&nDevHeight | |
905 | ); | |
906 | // | |
907 | // Create and fill a DIB header | |
908 | // | |
909 | memset(&vDIBh, '\0', 16); | |
910 | vDIBh.cbFix = 16; | |
911 | vDIBh.cx = nWidth; | |
912 | vDIBh.cy = nHeight; | |
913 | vDIBh.cPlanes = 1; | |
914 | vDIBh.cBitCount = 24; | |
915 | ||
916 | memset(&vDIBInfo, '\0', 16); | |
917 | vDIBInfo.cbFix = 16; | |
918 | vDIBInfo.cx = nWidth; | |
919 | vDIBInfo.cy = nHeight; | |
920 | vDIBInfo.cPlanes = 1; | |
921 | vDIBInfo.cBitCount = 24; | |
922 | ||
923 | lpBits = (unsigned char *)malloc(nBytePerLine * nHeight); | |
924 | if (!lpBits) | |
925 | { | |
926 | wxFAIL_MSG(wxT("could not allocate data for DIB")); | |
927 | free(pData); | |
928 | return wxNullImage; | |
929 | } | |
930 | memset(lpBits, '\0', (nBytePerLine * nHeight)); | |
931 | hBitmap = (HBITMAP)GetHBITMAP(); | |
932 | ||
933 | // | |
934 | // May already be selected into a PS | |
935 | // | |
936 | if ((pDC = GetSelectedInto()) != NULL) | |
937 | { | |
938 | hPSMem = pDC->GetHPS(); | |
939 | } | |
940 | else | |
941 | { | |
942 | hDCMem = ::DevOpenDC( vHabmain | |
943 | ,OD_MEMORY | |
944 | ,"*" | |
945 | ,5L | |
946 | ,(PDEVOPENDATA)&vDop | |
947 | ,NULLHANDLE | |
948 | ); | |
949 | hPSMem = ::GpiCreatePS( vHabmain | |
950 | ,hDCMem | |
951 | ,&vSizlPage | |
952 | ,PU_PELS | GPIA_ASSOC | |
953 | ); | |
954 | } | |
955 | if ((hOldBitmap = ::GpiSetBitmap(hPSMem, hBitmap)) == HBM_ERROR) | |
956 | { | |
957 | ERRORID vError; | |
958 | wxString sError; | |
959 | ||
960 | vError = ::WinGetLastError(vHabmain); | |
961 | sError = wxPMErrorToStr(vError); | |
962 | } | |
963 | ||
964 | // | |
965 | // Copy data from the device-dependent bitmap to the DIB | |
966 | // | |
967 | if ((lScans = ::GpiQueryBitmapBits( hPSMem | |
968 | ,0L | |
969 | ,(LONG)nHeight | |
970 | ,(PBYTE)lpBits | |
971 | ,&vDIBInfo | |
972 | )) == GPI_ALTERROR) | |
973 | { | |
974 | ERRORID vError; | |
975 | wxString sError; | |
976 | ||
977 | vError = ::WinGetLastError(vHabmain); | |
978 | sError = wxPMErrorToStr(vError); | |
979 | } | |
980 | ||
981 | // | |
982 | // Copy DIB data into the wxImage object | |
983 | // | |
984 | int i; | |
985 | int j; | |
986 | unsigned char* ptdata = pData; | |
987 | unsigned char* ptbits = lpBits; | |
988 | ||
989 | for (i = 0; i < nHeight; i++) | |
990 | { | |
991 | for (j = 0; j < nWidth; j++) | |
992 | { | |
993 | *(ptdata++) = *(ptbits+2); | |
994 | *(ptdata++) = *(ptbits+1); | |
995 | *(ptdata++) = *(ptbits ); | |
996 | ptbits += 3; | |
997 | } | |
998 | ptbits += nPadding; | |
999 | } | |
1000 | if ((pDC = GetSelectedInto()) == NULL) | |
1001 | { | |
1002 | ::GpiSetBitmap(hPSMem, NULLHANDLE); | |
1003 | ::GpiDestroyPS(hPSMem); | |
1004 | ::DevCloseDC(hDCMem); | |
1005 | } | |
1006 | ||
1007 | // | |
1008 | // Similarly, set data according to the possible mask bitmap | |
1009 | // | |
1010 | if (GetMask() && GetMask()->GetMaskBitmap()) | |
1011 | { | |
1012 | hBitmap = (HBITMAP)GetMask()->GetMaskBitmap(); | |
1013 | ||
1014 | // | |
1015 | // Memory DC/PS created, color set, data copied, and memory DC/PS deleted | |
1016 | // | |
1017 | HDC hMemDC = ::DevOpenDC( vHabmain | |
1018 | ,OD_MEMORY | |
1019 | ,"*" | |
1020 | ,5L | |
1021 | ,(PDEVOPENDATA)&vDop | |
1022 | ,NULLHANDLE | |
1023 | ); | |
1024 | HPS hMemPS = ::GpiCreatePS( vHabmain | |
1025 | ,hMemDC | |
1026 | ,&vSizlPage | |
1027 | ,PU_PELS | GPIA_ASSOC | |
1028 | ); | |
1029 | ::GpiSetColor(hMemPS, OS2RGB(0, 0, 0)); | |
1030 | ::GpiSetBackColor(hMemPS, OS2RGB(255, 255, 255) ); | |
1031 | ::GpiSetBitmap(hMemPS, hBitmap); | |
1032 | ::GpiQueryBitmapBits( hPSMem | |
1033 | ,0L | |
1034 | ,(LONG)nHeight | |
1035 | ,(PBYTE)lpBits | |
1036 | ,&vDIBInfo | |
1037 | ); | |
1038 | ::GpiSetBitmap(hMemPS, NULLHANDLE); | |
1039 | ::GpiDestroyPS(hMemPS); | |
1040 | ::DevCloseDC(hMemDC); | |
1041 | ||
1042 | // | |
1043 | // Background color set to RGB(16,16,16) in consistent with wxGTK | |
1044 | // | |
1045 | unsigned char ucRed = 16; | |
1046 | unsigned char ucGreen = 16; | |
1047 | unsigned char ucBlue = 16; | |
1048 | ||
1049 | ptdata = pData; | |
1050 | ptbits = lpBits; | |
1051 | for (i = 0; i < nHeight; i++) | |
1052 | { | |
1053 | for (j = 0; j < nWidth; j++) | |
1054 | { | |
1055 | if (*ptbits != 0) | |
1056 | ptdata += 3; | |
1057 | else | |
1058 | { | |
1059 | *(ptdata++) = ucRed; | |
1060 | *(ptdata++) = ucGreen; | |
1061 | *(ptdata++) = ucBlue; | |
1062 | } | |
1063 | ptbits += 3; | |
1064 | } | |
1065 | ptbits += nPadding; | |
1066 | } | |
1067 | vImage.SetMaskColour( ucRed | |
1068 | ,ucGreen | |
1069 | ,ucBlue | |
1070 | ); | |
1071 | vImage.SetMask(true); | |
1072 | } | |
1073 | else | |
1074 | { | |
1075 | vImage.SetMask(false); | |
1076 | } | |
1077 | ||
1078 | // | |
1079 | // Free allocated resources | |
1080 | // | |
1081 | free(lpBits); | |
1082 | return vImage; | |
1083 | } // end of wxBitmap::ConvertToImage | |
1084 | ||
1085 | // ---------------------------------------------------------------------------- | |
1086 | // sub bitmap extraction | |
1087 | // ---------------------------------------------------------------------------- | |
1088 | ||
1089 | wxBitmap wxBitmap::GetSubBitmap( | |
1090 | const wxRect& rRect | |
1091 | ) const | |
1092 | { | |
1093 | wxCHECK_MSG( Ok() && | |
1094 | (rRect.x >= 0) && (rRect.y >= 0) && | |
1095 | (rRect.x + rRect.width <= GetWidth()) && | |
1096 | (rRect.y + rRect.height <= GetHeight()), | |
1097 | wxNullBitmap, wxT("Invalid bitmap or bitmap region") ); | |
1098 | ||
1099 | wxBitmap vRet( rRect.width | |
1100 | ,rRect.height | |
1101 | ,GetDepth() | |
1102 | ); | |
1103 | wxASSERT_MSG( vRet.Ok(), wxT("GetSubBitmap error") ); | |
1104 | ||
1105 | ||
1106 | // | |
1107 | // Copy bitmap data | |
1108 | // | |
1109 | SIZEL vSize = {0, 0}; | |
1110 | DEVOPENSTRUC vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L}; | |
1111 | HDC hDCSrc = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE); | |
1112 | HDC hDCDst = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE); | |
1113 | HPS hPSSrc = ::GpiCreatePS(vHabmain, hDCSrc, &vSize, PU_PELS | GPIA_ASSOC); | |
1114 | HPS hPSDst = ::GpiCreatePS(vHabmain, hDCDst, &vSize, PU_PELS | GPIA_ASSOC); | |
1115 | POINTL vPoint[4] = { {0, 0}, {rRect.width, rRect.height}, | |
1116 | {rRect.x, rRect.y}, | |
1117 | {rRect.x + rRect.width, rRect.y + rRect.height} | |
1118 | }; | |
1119 | ||
1120 | ::GpiSetBitmap(hPSSrc, (HBITMAP) GetHBITMAP()); | |
1121 | ::GpiSetBitmap(hPSDst, (HBITMAP) vRet.GetHBITMAP()); | |
1122 | ::GpiBitBlt( hPSDst | |
1123 | ,hPSSrc | |
1124 | ,4L | |
1125 | ,vPoint | |
1126 | ,ROP_SRCCOPY | |
1127 | ,BBO_IGNORE | |
1128 | ); | |
1129 | ||
1130 | // | |
1131 | // Copy mask if there is one | |
1132 | // | |
1133 | if (GetMask()) | |
1134 | { | |
1135 | BITMAPINFOHEADER2 vBmih; | |
1136 | ||
1137 | memset(&vBmih, '\0', sizeof(BITMAPINFOHEADER2)); | |
1138 | vBmih.cbFix = sizeof(BITMAPINFOHEADER2); | |
1139 | vBmih.cx = rRect.width; | |
1140 | vBmih.cy = rRect.height; | |
1141 | vBmih.cPlanes = 1; | |
1142 | vBmih.cBitCount = 24; | |
1143 | ||
1144 | HBITMAP hBmpMask = ::GpiCreateBitmap( hPSDst | |
1145 | ,&vBmih | |
1146 | ,0L | |
1147 | ,NULL | |
1148 | ,NULL | |
1149 | ); | |
1150 | ||
1151 | ::GpiSetBitmap(hPSSrc, (HBITMAP) GetHBITMAP()); | |
1152 | ::GpiSetBitmap(hPSDst, (HBITMAP) vRet.GetHBITMAP()); | |
1153 | ||
1154 | ::GpiSetBitmap(hPSSrc, (HBITMAP) GetMask()->GetMaskBitmap()); | |
1155 | ::GpiSetBitmap(hPSDst, (HBITMAP) hBmpMask); | |
1156 | ::GpiBitBlt( hPSDst | |
1157 | ,hPSSrc | |
1158 | ,4L | |
1159 | ,vPoint | |
1160 | ,ROP_SRCCOPY | |
1161 | ,BBO_IGNORE | |
1162 | ); | |
1163 | ||
1164 | wxMask* pMask = new wxMask((WXHBITMAP)hBmpMask); | |
1165 | vRet.SetMask(pMask); | |
1166 | } | |
1167 | ||
1168 | ::GpiSetBitmap(hPSSrc, NULL); | |
1169 | ::GpiSetBitmap(hPSDst, NULL); | |
1170 | ::GpiDestroyPS(hPSSrc); | |
1171 | ::GpiDestroyPS(hPSDst); | |
1172 | ::DevCloseDC(hDCSrc); | |
1173 | ::DevCloseDC(hDCDst); | |
1174 | return vRet; | |
1175 | } // end of wxBitmap::GetSubBitmap | |
1176 | ||
1177 | // ---------------------------------------------------------------------------- | |
1178 | // wxBitmap accessors | |
1179 | // ---------------------------------------------------------------------------- | |
1180 | ||
1181 | void wxBitmap::SetQuality( | |
1182 | int nQ | |
1183 | ) | |
1184 | { | |
1185 | EnsureHasData(); | |
1186 | ||
1187 | GetBitmapData()->m_nQuality = nQ; | |
1188 | } // end of wxBitmap::SetQuality | |
1189 | ||
1190 | void wxBitmap::SetPalette( | |
1191 | const wxPalette& rPalette | |
1192 | ) | |
1193 | { | |
1194 | EnsureHasData(); | |
1195 | ||
1196 | GetBitmapData()->m_vBitmapPalette = rPalette; | |
1197 | } // end of wxBitmap::SetPalette | |
1198 | ||
1199 | void wxBitmap::SetMask( | |
1200 | wxMask* pMask | |
1201 | ) | |
1202 | { | |
1203 | EnsureHasData(); | |
1204 | ||
1205 | GetBitmapData()->m_pBitmapMask = pMask; | |
1206 | } // end of wxBitmap::SetMask | |
1207 | ||
1208 | wxBitmap wxBitmap::GetBitmapForDC(wxDC& WXUNUSED(rDc)) const | |
1209 | { | |
1210 | return(*this); | |
1211 | } // end of wxBitmap::GetBitmapForDC | |
1212 | ||
1213 | // ---------------------------------------------------------------------------- | |
1214 | // wxMask | |
1215 | // ---------------------------------------------------------------------------- | |
1216 | ||
1217 | wxMask::wxMask() | |
1218 | { | |
1219 | m_hMaskBitmap = 0; | |
1220 | } // end of wxMask::wxMask | |
1221 | ||
1222 | // Construct a mask from a bitmap and a colour indicating | |
1223 | // the transparent area | |
1224 | wxMask::wxMask( | |
1225 | const wxBitmap& rBitmap | |
1226 | , const wxColour& rColour | |
1227 | ) | |
1228 | { | |
1229 | m_hMaskBitmap = 0; | |
1230 | Create( rBitmap | |
1231 | ,rColour | |
1232 | ); | |
1233 | } // end of wxMask::wxMask | |
1234 | ||
1235 | // Construct a mask from a bitmap and a palette index indicating | |
1236 | // the transparent area | |
1237 | wxMask::wxMask( | |
1238 | const wxBitmap& rBitmap | |
1239 | , int nPaletteIndex | |
1240 | ) | |
1241 | { | |
1242 | m_hMaskBitmap = 0; | |
1243 | Create( rBitmap | |
1244 | ,nPaletteIndex | |
1245 | ); | |
1246 | } // end of wxMask::wxMask | |
1247 | ||
1248 | // Construct a mask from a mono bitmap (copies the bitmap). | |
1249 | wxMask::wxMask( | |
1250 | const wxBitmap& rBitmap | |
1251 | ) | |
1252 | { | |
1253 | m_hMaskBitmap = 0; | |
1254 | Create(rBitmap); | |
1255 | } // end of wxMask::wxMask | |
1256 | ||
1257 | wxMask::~wxMask() | |
1258 | { | |
1259 | if (m_hMaskBitmap) | |
1260 | ::GpiDeleteBitmap((HBITMAP)m_hMaskBitmap); | |
1261 | } // end of wxMask::~wxMask | |
1262 | ||
1263 | // Create a mask from a mono bitmap (copies the bitmap). | |
1264 | bool wxMask::Create( | |
1265 | const wxBitmap& rBitmap | |
1266 | ) | |
1267 | { | |
1268 | BITMAPINFOHEADER2 vBmih; | |
1269 | SIZEL vSize = {0, 0}; | |
1270 | DEVOPENSTRUC vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L}; | |
1271 | HDC hDCSrc = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE); | |
1272 | HDC hDCDst = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE); | |
1273 | HPS hPSSrc = ::GpiCreatePS(vHabmain, hDCSrc, &vSize, PU_PELS | GPIA_ASSOC); | |
1274 | HPS hPSDst = ::GpiCreatePS(vHabmain, hDCDst, &vSize, PU_PELS | GPIA_ASSOC); | |
1275 | POINTL vPoint[4] = { {0 ,0}, {rBitmap.GetWidth(), rBitmap.GetHeight()}, | |
1276 | {0, 0}, {rBitmap.GetWidth(), rBitmap.GetHeight()} | |
1277 | }; | |
1278 | ||
1279 | if (m_hMaskBitmap) | |
1280 | { | |
1281 | ::GpiDeleteBitmap((HBITMAP) m_hMaskBitmap); | |
1282 | m_hMaskBitmap = 0; | |
1283 | } | |
1284 | if (!rBitmap.Ok() || rBitmap.GetDepth() != 1) | |
1285 | { | |
1286 | return false; | |
1287 | } | |
1288 | ||
1289 | memset(&vBmih, '\0', sizeof(BITMAPINFOHEADER2)); | |
1290 | vBmih.cbFix = sizeof(BITMAPINFOHEADER2); | |
1291 | vBmih.cx = rBitmap.GetWidth(); | |
1292 | vBmih.cy = rBitmap.GetHeight(); | |
1293 | vBmih.cPlanes = 1; | |
1294 | vBmih.cBitCount = 24; | |
1295 | ||
1296 | m_hMaskBitmap = ::GpiCreateBitmap( hPSDst | |
1297 | ,&vBmih | |
1298 | ,0L | |
1299 | ,NULL | |
1300 | ,NULL | |
1301 | ); | |
1302 | ||
1303 | ::GpiSetBitmap(hPSSrc, (HBITMAP) rBitmap.GetHBITMAP()); | |
1304 | ::GpiSetBitmap(hPSDst, (HBITMAP) m_hMaskBitmap); | |
1305 | ::GpiBitBlt( hPSDst | |
1306 | ,hPSSrc | |
1307 | ,4L | |
1308 | ,vPoint | |
1309 | ,ROP_SRCCOPY | |
1310 | ,BBO_IGNORE | |
1311 | ); | |
1312 | ||
1313 | ::GpiDestroyPS(hPSSrc); | |
1314 | ::GpiDestroyPS(hPSDst); | |
1315 | ::DevCloseDC(hDCSrc); | |
1316 | ::DevCloseDC(hDCDst); | |
1317 | return true; | |
1318 | } // end of wxMask::Create | |
1319 | ||
1320 | // Create a mask from a bitmap and a palette index indicating | |
1321 | // the transparent area | |
1322 | bool wxMask::Create( | |
1323 | const wxBitmap& rBitmap | |
1324 | , int nPaletteIndex | |
1325 | ) | |
1326 | { | |
1327 | if (m_hMaskBitmap) | |
1328 | { | |
1329 | ::GpiDeleteBitmap((HBITMAP) m_hMaskBitmap); | |
1330 | m_hMaskBitmap = 0; | |
1331 | } | |
1332 | if (rBitmap.Ok() && rBitmap.GetPalette()->Ok()) | |
1333 | { | |
1334 | unsigned char cRed; | |
1335 | unsigned char cGreen; | |
1336 | unsigned char cBlue; | |
1337 | ||
1338 | if (rBitmap.GetPalette()->GetRGB( nPaletteIndex | |
1339 | ,&cRed | |
1340 | ,&cGreen | |
1341 | ,&cBlue | |
1342 | )) | |
1343 | { | |
1344 | wxColour vTransparentColour( cRed | |
1345 | ,cGreen | |
1346 | ,cBlue | |
1347 | ); | |
1348 | ||
1349 | return (Create( rBitmap | |
1350 | ,vTransparentColour | |
1351 | )); | |
1352 | } | |
1353 | } | |
1354 | return false; | |
1355 | } // end of wxMask::Create | |
1356 | ||
1357 | // Create a mask from a bitmap and a colour indicating | |
1358 | // the transparent area | |
1359 | bool wxMask::Create( | |
1360 | const wxBitmap& rBitmap | |
1361 | , const wxColour& rColour | |
1362 | ) | |
1363 | { | |
1364 | bool bOk = true; | |
1365 | COLORREF vMaskColour = OS2RGB( rColour.Red() | |
1366 | ,rColour.Green() | |
1367 | ,rColour.Blue() | |
1368 | ); | |
1369 | BITMAPINFOHEADER2 vBmih; | |
1370 | SIZEL vSize = {0, 0}; | |
1371 | DEVOPENSTRUC vDop = { NULL, "DISPLAY", NULL, NULL, NULL, NULL, NULL, NULL, NULL }; | |
1372 | HDC hDCSrc = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE); | |
1373 | HDC hDCDst = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE); | |
1374 | HPS hPSSrc = ::GpiCreatePS(vHabmain, hDCSrc, &vSize, PU_PELS | GPIA_ASSOC); | |
1375 | HPS hPSDst = ::GpiCreatePS(vHabmain, hDCDst, &vSize, PU_PELS | GPIA_ASSOC); | |
1376 | ||
1377 | if (m_hMaskBitmap) | |
1378 | { | |
1379 | ::GpiDeleteBitmap((HBITMAP) m_hMaskBitmap); | |
1380 | m_hMaskBitmap = 0; | |
1381 | } | |
1382 | if (!rBitmap.Ok()) | |
1383 | { | |
1384 | return false; | |
1385 | } | |
1386 | ||
1387 | // | |
1388 | // Scan the bitmap for the transparent colour and set | |
1389 | // the corresponding pixels in the mask to BLACK and | |
1390 | // the rest to WHITE | |
1391 | // | |
1392 | ||
1393 | memset(&vBmih, '\0', sizeof(BITMAPINFOHEADER2)); | |
1394 | vBmih.cbFix = sizeof(BITMAPINFOHEADER2); | |
1395 | vBmih.cx = rBitmap.GetWidth(); | |
1396 | vBmih.cy = rBitmap.GetHeight(); | |
1397 | vBmih.cPlanes = 1; | |
1398 | vBmih.cBitCount = 1; | |
1399 | ||
1400 | m_hMaskBitmap = ::GpiCreateBitmap( hPSDst | |
1401 | ,&vBmih | |
1402 | ,0L | |
1403 | ,NULL | |
1404 | ,NULL | |
1405 | ); | |
1406 | ||
1407 | ::GpiSetBitmap(hPSSrc, (HBITMAP) rBitmap.GetHBITMAP()); | |
1408 | ::GpiSetBitmap(hPSDst, (HBITMAP) m_hMaskBitmap); | |
1409 | ||
1410 | // | |
1411 | // This is not very efficient, but I can't think | |
1412 | // of a better way of doing it | |
1413 | // | |
1414 | for (int w = 0; w < rBitmap.GetWidth(); w++) | |
1415 | { | |
1416 | for (int h = 0; h < rBitmap.GetHeight(); h++) | |
1417 | { | |
1418 | POINTL vPt = {w, h}; | |
1419 | COLORREF vCol = (COLORREF)::GpiQueryPel(hPSSrc, &vPt); | |
1420 | if (vCol == (COLORREF)CLR_NOINDEX) | |
1421 | { | |
1422 | // | |
1423 | // Doesn't make sense to continue | |
1424 | // | |
1425 | bOk = false; | |
1426 | break; | |
1427 | } | |
1428 | ||
1429 | if (vCol == vMaskColour) | |
1430 | { | |
1431 | ::GpiSetColor(hPSDst, OS2RGB(0, 0, 0)); | |
1432 | ::GpiSetPel(hPSDst, &vPt); | |
1433 | } | |
1434 | else | |
1435 | { | |
1436 | ::GpiSetColor(hPSDst, OS2RGB(255, 255, 255)); | |
1437 | ::GpiSetPel(hPSDst, &vPt); | |
1438 | } | |
1439 | } | |
1440 | } | |
1441 | ::GpiSetBitmap(hPSSrc, NULL); | |
1442 | ::GpiSetBitmap(hPSDst, NULL); | |
1443 | ::GpiDestroyPS(hPSSrc); | |
1444 | ::GpiDestroyPS(hPSDst); | |
1445 | ::DevCloseDC(hDCSrc); | |
1446 | ::DevCloseDC(hDCDst); | |
1447 | return true; | |
1448 | } // end of wxMask::Create | |
1449 | ||
1450 | // ---------------------------------------------------------------------------- | |
1451 | // wxBitmapHandler | |
1452 | // ---------------------------------------------------------------------------- | |
1453 | ||
1454 | bool wxBitmapHandler::Create( wxGDIImage* pImage, | |
1455 | void* pData, | |
1456 | long WXUNUSED(lFlags), | |
1457 | int nWidth, | |
1458 | int nHeight, | |
1459 | int nDepth) | |
1460 | { | |
1461 | wxBitmap* pBitmap = wxDynamicCast( pImage | |
1462 | ,wxBitmap | |
1463 | ); | |
1464 | ||
1465 | return(pBitmap ? Create( pBitmap | |
1466 | ,pData | |
1467 | ,nWidth | |
1468 | ,nHeight | |
1469 | ,nDepth | |
1470 | ) : false); | |
1471 | } | |
1472 | ||
1473 | bool wxBitmapHandler::Load( | |
1474 | wxGDIImage* pImage | |
1475 | , int nId | |
1476 | , long lFlags | |
1477 | , int nWidth | |
1478 | , int nHeight | |
1479 | ) | |
1480 | { | |
1481 | wxBitmap* pBitmap = wxDynamicCast( pImage | |
1482 | ,wxBitmap | |
1483 | ); | |
1484 | ||
1485 | return(pBitmap ? LoadFile( pBitmap | |
1486 | ,nId | |
1487 | ,lFlags | |
1488 | ,nWidth | |
1489 | ,nHeight | |
1490 | ) : false); | |
1491 | } | |
1492 | ||
1493 | bool wxBitmapHandler::Save( | |
1494 | wxGDIImage* pImage | |
1495 | , const wxString& rName | |
1496 | , int lType | |
1497 | ) | |
1498 | { | |
1499 | wxBitmap* pBitmap = wxDynamicCast( pImage | |
1500 | ,wxBitmap | |
1501 | ); | |
1502 | ||
1503 | return(pBitmap ? SaveFile( pBitmap | |
1504 | ,rName | |
1505 | ,lType | |
1506 | ) : false); | |
1507 | } | |
1508 | ||
1509 | bool wxBitmapHandler::Create( | |
1510 | wxBitmap* WXUNUSED(pBitmap) | |
1511 | , void* WXUNUSED(pData) | |
1512 | , long WXUNUSED(lType) | |
1513 | , int WXUNUSED(nWidth) | |
1514 | , int WXUNUSED(nHeight) | |
1515 | , int WXUNUSED(nDepth) | |
1516 | ) | |
1517 | { | |
1518 | return false; | |
1519 | } | |
1520 | ||
1521 | bool wxBitmapHandler::LoadFile( | |
1522 | wxBitmap* WXUNUSED(pBitmap) | |
1523 | , int WXUNUSED(nId) | |
1524 | , long WXUNUSED(lType) | |
1525 | , int WXUNUSED(nDesiredWidth) | |
1526 | , int WXUNUSED(nDesiredHeight) | |
1527 | ) | |
1528 | { | |
1529 | return false; | |
1530 | } | |
1531 | ||
1532 | bool wxBitmapHandler::LoadFile( | |
1533 | wxBitmap* WXUNUSED(pBitmap) | |
1534 | , const wxString& WXUNUSED(rName) | |
1535 | , long WXUNUSED(lType) | |
1536 | , int WXUNUSED(nDesiredWidth) | |
1537 | , int WXUNUSED(nDesiredHeight) | |
1538 | ) | |
1539 | { | |
1540 | return false; | |
1541 | } | |
1542 | ||
1543 | bool wxBitmapHandler::SaveFile( | |
1544 | wxBitmap* WXUNUSED(pBitmap) | |
1545 | , const wxString& WXUNUSED(rName) | |
1546 | , int WXUNUSED(nType) | |
1547 | , const wxPalette* WXUNUSED(pPalette) | |
1548 | ) | |
1549 | { | |
1550 | return false; | |
1551 | } | |
1552 | ||
1553 | // ---------------------------------------------------------------------------- | |
1554 | // Utility functions | |
1555 | // ---------------------------------------------------------------------------- | |
1556 | HBITMAP wxInvertMask( | |
1557 | HBITMAP hBmpMask | |
1558 | , int nWidth | |
1559 | , int nHeight | |
1560 | ) | |
1561 | { | |
1562 | HBITMAP hBmpInvMask = 0; | |
1563 | ||
1564 | wxCHECK_MSG( hBmpMask, 0, _T("invalid bitmap in wxInvertMask") ); | |
1565 | ||
1566 | // | |
1567 | // Get width/height from the bitmap if not given | |
1568 | // | |
1569 | if (!nWidth || !nHeight) | |
1570 | { | |
1571 | BITMAPINFOHEADER2 vBmhdr; | |
1572 | ||
1573 | ::GpiQueryBitmapInfoHeader( hBmpMask | |
1574 | ,&vBmhdr | |
1575 | ); | |
1576 | nWidth = (int)vBmhdr.cx; | |
1577 | nHeight = (int)vBmhdr.cy; | |
1578 | } | |
1579 | ||
1580 | BITMAPINFOHEADER2 vBmih; | |
1581 | SIZEL vSize = {0, 0}; | |
1582 | DEVOPENSTRUC vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L}; | |
1583 | HDC hDCSrc = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE); | |
1584 | HDC hDCDst = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE); | |
1585 | HPS hPSSrc = ::GpiCreatePS(vHabmain, hDCSrc, &vSize, PU_PELS | GPIA_ASSOC); | |
1586 | HPS hPSDst = ::GpiCreatePS(vHabmain, hDCDst, &vSize, PU_PELS | GPIA_ASSOC); | |
1587 | POINTL vPoint[4] = { {0 ,0}, {nWidth, nHeight}, | |
1588 | {0, 0}, {nWidth, nHeight} | |
1589 | }; | |
1590 | ||
1591 | memset(&vBmih, '\0', 16); | |
1592 | vBmih.cbFix = 16; | |
1593 | vBmih.cx = nWidth; | |
1594 | vBmih.cy = nHeight; | |
1595 | vBmih.cPlanes = 1; | |
1596 | vBmih.cBitCount = 24; | |
1597 | ||
1598 | hBmpInvMask = ::GpiCreateBitmap( hPSDst | |
1599 | ,&vBmih | |
1600 | ,0L | |
1601 | ,NULL | |
1602 | ,NULL | |
1603 | ); | |
1604 | ||
1605 | ::GpiSetBitmap(hPSSrc, (HBITMAP) hBmpMask); | |
1606 | ::GpiSetBitmap(hPSDst, (HBITMAP) hBmpInvMask); | |
1607 | ||
1608 | ::GpiBitBlt( hPSDst | |
1609 | ,hPSSrc | |
1610 | ,4L | |
1611 | ,vPoint | |
1612 | ,ROP_SRCINVERT | |
1613 | ,BBO_IGNORE | |
1614 | ); | |
1615 | ||
1616 | ::GpiDestroyPS(hPSSrc); | |
1617 | ::GpiDestroyPS(hPSDst); | |
1618 | ::DevCloseDC(hDCSrc); | |
1619 | ::DevCloseDC(hDCDst); | |
1620 | ||
1621 | return hBmpInvMask; | |
1622 | } // end of WxWinGdi_InvertMask |