| 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 | #ifdef __GNUG__ |
| 13 | #pragma implementation "bitmap.h" |
| 14 | #endif |
| 15 | |
| 16 | // For compilers that support precompilation, includes "wx.h". |
| 17 | #include "wx/wxprec.h" |
| 18 | |
| 19 | #ifndef WX_PRECOMP |
| 20 | #include <stdio.h> |
| 21 | |
| 22 | #include "wx/list.h" |
| 23 | #include "wx/utils.h" |
| 24 | #include "wx/app.h" |
| 25 | #include "wx/palette.h" |
| 26 | #include "wx/dcmemory.h" |
| 27 | #include "wx/bitmap.h" |
| 28 | #include "wx/icon.h" |
| 29 | #endif |
| 30 | |
| 31 | #include "wx/os2/private.h" |
| 32 | #include "wx/log.h" |
| 33 | |
| 34 | //#include "wx/msw/dib.h" |
| 35 | #include "wx/image.h" |
| 36 | |
| 37 | // ---------------------------------------------------------------------------- |
| 38 | // macros |
| 39 | // ---------------------------------------------------------------------------- |
| 40 | |
| 41 | IMPLEMENT_DYNAMIC_CLASS(wxBitmap, wxGDIObject) |
| 42 | IMPLEMENT_DYNAMIC_CLASS(wxMask, wxObject) |
| 43 | |
| 44 | IMPLEMENT_DYNAMIC_CLASS(wxBitmapHandler, wxObject) |
| 45 | |
| 46 | // ============================================================================ |
| 47 | // implementation |
| 48 | // ============================================================================ |
| 49 | |
| 50 | // ---------------------------------------------------------------------------- |
| 51 | // wxBitmapRefData |
| 52 | // ---------------------------------------------------------------------------- |
| 53 | |
| 54 | wxBitmapRefData::wxBitmapRefData() |
| 55 | { |
| 56 | m_nQuality = 0; |
| 57 | m_pSelectedInto = NULL; |
| 58 | m_nNumColors = 0; |
| 59 | m_pBitmapMask = NULL; |
| 60 | m_hBitmap = (WXHBITMAP) NULL; |
| 61 | } // end of wxBitmapRefData::wxBitmapRefData |
| 62 | |
| 63 | void wxBitmapRefData::Free() |
| 64 | { |
| 65 | wxASSERT_MSG( !m_pSelectedInto, |
| 66 | wxT("deleting bitmap still selected into wxMemoryDC") ); |
| 67 | |
| 68 | if (m_hBitmap) |
| 69 | { |
| 70 | if ( !::GpiDeleteBitmap((HBITMAP)m_hBitmap) ) |
| 71 | { |
| 72 | wxLogLastError("GpiDeleteBitmap(hbitmap)"); |
| 73 | } |
| 74 | } |
| 75 | |
| 76 | delete m_pBitmapMask; |
| 77 | m_pBitmapMask = NULL; |
| 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_refData = NULL; done in the base class ctor |
| 88 | |
| 89 | if (wxTheBitmapList) |
| 90 | wxTheBitmapList->AddBitmap(this); |
| 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 | // |
| 119 | // No mask in the Info struct in OS/2 |
| 120 | // |
| 121 | return(TRUE); |
| 122 | } // end of wxBitmap::CopyFromIconOrCursor |
| 123 | |
| 124 | bool wxBitmap::CopyFromCursor( |
| 125 | const wxCursor& rCursor |
| 126 | ) |
| 127 | { |
| 128 | UnRef(); |
| 129 | |
| 130 | if (!rCursor.Ok()) |
| 131 | return(FALSE); |
| 132 | return(CopyFromIconOrCursor(rCursor)); |
| 133 | } // end of wxBitmap::CopyFromCursor |
| 134 | |
| 135 | bool wxBitmap::CopyFromIcon( |
| 136 | const wxIcon& rIcon |
| 137 | ) |
| 138 | { |
| 139 | UnRef(); |
| 140 | |
| 141 | if (!rIcon.Ok()) |
| 142 | return(FALSE); |
| 143 | |
| 144 | return CopyFromIconOrCursor(rIcon); |
| 145 | } // end of wxBitmap::CopyFromIcon |
| 146 | |
| 147 | wxBitmap::~wxBitmap() |
| 148 | { |
| 149 | if (wxTheBitmapList) |
| 150 | wxTheBitmapList->DeleteObject(this); |
| 151 | } // end of wxBitmap::~wxBitmap |
| 152 | |
| 153 | wxBitmap::wxBitmap( |
| 154 | const char zBits[] |
| 155 | , int nTheWidth |
| 156 | , int nTheHeight |
| 157 | , int nNoBits |
| 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 | |
| 170 | wxASSERT(vHabmain != NULL); |
| 171 | |
| 172 | hDc = ::DevOpenDC(vHabmain, OD_MEMORY, (PSZ)"*", 1L, (PDEVOPENDATA)&vDop, 0L); |
| 173 | |
| 174 | vHeader.cbFix = sizeof(vHeader); |
| 175 | vHeader.cx = (USHORT)nTheWidth; |
| 176 | vHeader.cy = (USHORT)nTheHeight; |
| 177 | vHeader.cPlanes = 1L; |
| 178 | vHeader.cBitCount = nNoBits; |
| 179 | vHeader.ulCompression = BCA_UNCOMP; |
| 180 | vHeader.cxResolution = 0; |
| 181 | vHeader.cyResolution = 0; |
| 182 | vHeader.cclrUsed = 0; |
| 183 | vHeader.cclrImportant = 0; |
| 184 | vHeader.usUnits = BRU_METRIC; |
| 185 | vHeader.usRecording = BRA_BOTTOMUP; |
| 186 | vHeader.usRendering = BRH_NOTHALFTONED; |
| 187 | vHeader.cSize1 = 0; |
| 188 | vHeader.cSize2 = 0; |
| 189 | vHeader.ulColorEncoding = 0; |
| 190 | vHeader.ulIdentifier = 0; |
| 191 | |
| 192 | hPs = ::GpiCreatePS(vHabmain, hDc, &vSize, GPIA_ASSOC | PU_PELS); |
| 193 | if (hPs == 0) |
| 194 | { |
| 195 | wxLogLastError("GpiCreatePS Failure"); |
| 196 | } |
| 197 | |
| 198 | m_refData = pRefData; |
| 199 | |
| 200 | pRefData->m_nWidth = nTheWidth; |
| 201 | pRefData->m_nHeight = nTheHeight; |
| 202 | pRefData->m_nDepth = nNoBits; |
| 203 | pRefData->m_nNumColors = 0; |
| 204 | pRefData->m_pSelectedInto = NULL; |
| 205 | |
| 206 | HBITMAP hBmp = ::GpiCreateBitmap(hPs, &vHeader, 0L, NULL, &vInfo); |
| 207 | if (!hBmp) |
| 208 | { |
| 209 | wxLogLastError("CreateBitmap"); |
| 210 | } |
| 211 | SetHBITMAP((WXHBITMAP)hBmp); |
| 212 | } // end of wxBitmap::wxBitmap |
| 213 | |
| 214 | // |
| 215 | // Create from XPM data |
| 216 | // |
| 217 | wxBitmap::wxBitmap( |
| 218 | char** ppData |
| 219 | ) |
| 220 | { |
| 221 | Init(); |
| 222 | |
| 223 | (void)Create( (void *)ppData |
| 224 | ,wxBITMAP_TYPE_XPM_DATA |
| 225 | ,0 |
| 226 | ,0 |
| 227 | ,0 |
| 228 | ); |
| 229 | } // end of wxBitmap::wxBitmap |
| 230 | |
| 231 | wxBitmap::wxBitmap( |
| 232 | const char** ppData |
| 233 | ) |
| 234 | { |
| 235 | Init(); |
| 236 | |
| 237 | (void)Create( (void *)ppData |
| 238 | ,wxBITMAP_TYPE_XPM_DATA |
| 239 | ,0 |
| 240 | ,0 |
| 241 | ,0 |
| 242 | ); |
| 243 | } // end of wxBitmap::wxBitmap |
| 244 | |
| 245 | wxBitmap::wxBitmap( |
| 246 | int nW |
| 247 | , int nH |
| 248 | , int nD |
| 249 | ) |
| 250 | { |
| 251 | Init(); |
| 252 | |
| 253 | (void)Create( nW |
| 254 | ,nH |
| 255 | ,nD |
| 256 | ); |
| 257 | } // end of wxBitmap::wxBitmap |
| 258 | |
| 259 | wxBitmap::wxBitmap( |
| 260 | void* pData |
| 261 | , long lType |
| 262 | , int nWidth |
| 263 | , int nHeight |
| 264 | , int nDepth |
| 265 | ) |
| 266 | { |
| 267 | Init(); |
| 268 | |
| 269 | (void)Create( pData |
| 270 | ,lType |
| 271 | ,nWidth |
| 272 | ,nHeight |
| 273 | ,nDepth |
| 274 | ); |
| 275 | } // end of wxBitmap::wxBitmap |
| 276 | |
| 277 | wxBitmap::wxBitmap( |
| 278 | const wxString& rFilename |
| 279 | , long lType |
| 280 | ) |
| 281 | { |
| 282 | Init(); |
| 283 | |
| 284 | LoadFile( rFilename |
| 285 | ,(int)lType |
| 286 | ); |
| 287 | } // end of wxBitmap::wxBitmap |
| 288 | |
| 289 | bool wxBitmap::Create( |
| 290 | int nW |
| 291 | , int nH |
| 292 | , int nD |
| 293 | ) |
| 294 | { |
| 295 | HBITMAP hBmp; |
| 296 | BITMAPINFOHEADER2 vHeader; |
| 297 | |
| 298 | wxASSERT(vHabmain != NULL); |
| 299 | UnRef(); |
| 300 | m_refData = new wxBitmapRefData; |
| 301 | GetBitmapData()->m_nWidth = nW; |
| 302 | GetBitmapData()->m_nHeight = nH; |
| 303 | GetBitmapData()->m_nDepth = nD; |
| 304 | |
| 305 | if (nD > 0) |
| 306 | { |
| 307 | DEVOPENSTRUC vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L}; |
| 308 | SIZEL vSize = {0, 0}; |
| 309 | HDC hDC = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE); |
| 310 | HPS hPS = ::GpiCreatePS(vHabmain, hDC, &vSize, PU_PELS | GPIA_ASSOC); |
| 311 | |
| 312 | memset(&vHeader, '\0', sizeof(BITMAPINFOHEADER2)); |
| 313 | vHeader.cbFix = sizeof(BITMAPINFOHEADER2); |
| 314 | vHeader.cx = nW; |
| 315 | vHeader.cy = nH; |
| 316 | vHeader.cPlanes = 1; |
| 317 | vHeader.cBitCount = nD; |
| 318 | |
| 319 | hBmp = ::GpiCreateBitmap( hPS |
| 320 | ,&vHeader |
| 321 | ,0L |
| 322 | ,NULL |
| 323 | ,NULL |
| 324 | ); |
| 325 | ::GpiDestroyPS(hPS); |
| 326 | ::DevCloseDC(hDC); |
| 327 | } |
| 328 | else |
| 329 | { |
| 330 | HPS hPSScreen; |
| 331 | HDC hDCScreen; |
| 332 | LONG lBitCount; |
| 333 | |
| 334 | hPSScreen = ::WinGetScreenPS(HWND_DESKTOP); |
| 335 | hDCScreen = ::GpiQueryDevice(hPSScreen); |
| 336 | ::DevQueryCaps(hDCScreen, CAPS_COLOR_BITCOUNT, 1L, &lBitCount); |
| 337 | |
| 338 | memset(&vHeader, '\0', sizeof(BITMAPINFOHEADER2)); |
| 339 | vHeader.cbFix = sizeof(BITMAPINFOHEADER2); |
| 340 | vHeader.cx = nW; |
| 341 | vHeader.cy = nH; |
| 342 | vHeader.cPlanes = 1; |
| 343 | vHeader.cBitCount = lBitCount; |
| 344 | |
| 345 | hBmp = ::GpiCreateBitmap( hPSScreen |
| 346 | ,&vHeader |
| 347 | ,0L |
| 348 | ,NULL |
| 349 | ,NULL |
| 350 | ); |
| 351 | |
| 352 | GetBitmapData()->m_nDepth = wxDisplayDepth(); |
| 353 | ::WinReleasePS(hPSScreen); |
| 354 | } |
| 355 | SetHBITMAP((WXHBITMAP)hBmp); |
| 356 | |
| 357 | #if WXWIN_COMPATIBILITY_2 |
| 358 | GetBitmapData()->m_bOk = hBmp != 0; |
| 359 | #endif // WXWIN_COMPATIBILITY_2 |
| 360 | |
| 361 | return Ok(); |
| 362 | } // end of wxBitmap::Create |
| 363 | |
| 364 | bool wxBitmap::LoadFile( |
| 365 | const wxString& rFilename |
| 366 | , long lType |
| 367 | ) |
| 368 | { |
| 369 | HPS hPs = NULLHANDLE; |
| 370 | |
| 371 | UnRef(); |
| 372 | |
| 373 | wxBitmapHandler* pHandler = wxDynamicCast( FindHandler(lType) |
| 374 | ,wxBitmapHandler |
| 375 | ); |
| 376 | |
| 377 | if (pHandler) |
| 378 | { |
| 379 | m_refData = new wxBitmapRefData; |
| 380 | |
| 381 | return(pHandler->LoadFile( this |
| 382 | ,rFilename |
| 383 | ,hPs |
| 384 | ,lType |
| 385 | , -1 |
| 386 | , -1 |
| 387 | )); |
| 388 | } |
| 389 | else |
| 390 | { |
| 391 | wxImage vImage; |
| 392 | |
| 393 | if (!vImage.LoadFile(rFilename, lType) || !vImage.Ok() ) |
| 394 | return(FALSE); |
| 395 | |
| 396 | *this = vImage.ConvertToBitmap(); |
| 397 | |
| 398 | return(TRUE); |
| 399 | } |
| 400 | } // end of wxBitmap::LoadFile |
| 401 | |
| 402 | bool wxBitmap::Create( |
| 403 | void* pData |
| 404 | , long lType |
| 405 | , int nWidth |
| 406 | , int nHeight |
| 407 | , int nDepth |
| 408 | ) |
| 409 | { |
| 410 | UnRef(); |
| 411 | |
| 412 | wxBitmapHandler* pHandler = wxDynamicCast( FindHandler(lType) |
| 413 | ,wxBitmapHandler |
| 414 | ); |
| 415 | |
| 416 | if (!pHandler) |
| 417 | { |
| 418 | wxLogDebug(wxT("Failed to create bitmap: no bitmap handler for " |
| 419 | "type %d defined."), lType); |
| 420 | |
| 421 | return(FALSE); |
| 422 | } |
| 423 | |
| 424 | m_refData = new wxBitmapRefData; |
| 425 | |
| 426 | return(pHandler->Create( this |
| 427 | ,pData |
| 428 | ,lType |
| 429 | ,nWidth |
| 430 | ,nHeight |
| 431 | ,nDepth |
| 432 | )); |
| 433 | } // end of wxBitmap::Create |
| 434 | |
| 435 | bool wxBitmap::SaveFile( |
| 436 | const wxString& rFilename |
| 437 | , int lType |
| 438 | , const wxPalette* pPalette |
| 439 | ) |
| 440 | { |
| 441 | wxBitmapHandler* pHandler = wxDynamicCast( FindHandler(lType) |
| 442 | ,wxBitmapHandler |
| 443 | ); |
| 444 | |
| 445 | if (pHandler) |
| 446 | { |
| 447 | return pHandler->SaveFile( this |
| 448 | ,rFilename |
| 449 | ,lType |
| 450 | ,pPalette |
| 451 | ); |
| 452 | } |
| 453 | else |
| 454 | { |
| 455 | // FIXME what about palette? shouldn't we use it? |
| 456 | wxImage vImage(*this); |
| 457 | |
| 458 | if (!vImage.Ok()) |
| 459 | return(FALSE); |
| 460 | |
| 461 | return(vImage.SaveFile( rFilename |
| 462 | ,lType |
| 463 | )); |
| 464 | } |
| 465 | } // end of wxBitmap::SaveFile |
| 466 | |
| 467 | |
| 468 | // ---------------------------------------------------------------------------- |
| 469 | // wxImage-wxBitmap convertion |
| 470 | // ---------------------------------------------------------------------------- |
| 471 | |
| 472 | bool wxBitmap::CreateFromImage( const wxImage& image, int depth ) |
| 473 | { |
| 474 | wxCHECK_MSG( image.Ok(), FALSE, wxT("invalid image") ) |
| 475 | |
| 476 | // TODO: |
| 477 | /* |
| 478 | int sizeLimit = 1024*768*3; |
| 479 | |
| 480 | // width and height of the device-dependent bitmap |
| 481 | int width = GetWidth(); |
| 482 | int bmpHeight = GetHeight(); |
| 483 | |
| 484 | // calc the number of bytes per scanline and padding |
| 485 | int bytePerLine = width*3; |
| 486 | int sizeDWORD = sizeof( DWORD ); |
| 487 | int lineBoundary = bytePerLine % sizeDWORD; |
| 488 | int padding = 0; |
| 489 | if( lineBoundary > 0 ) |
| 490 | { |
| 491 | padding = sizeDWORD - lineBoundary; |
| 492 | bytePerLine += padding; |
| 493 | } |
| 494 | // calc the number of DIBs and heights of DIBs |
| 495 | int numDIB = 1; |
| 496 | int hRemain = 0; |
| 497 | int height = sizeLimit/bytePerLine; |
| 498 | if( height >= bmpHeight ) |
| 499 | height = bmpHeight; |
| 500 | else |
| 501 | { |
| 502 | numDIB = bmpHeight / height; |
| 503 | hRemain = bmpHeight % height; |
| 504 | if( hRemain >0 ) numDIB++; |
| 505 | } |
| 506 | |
| 507 | // set bitmap parameters |
| 508 | wxBitmap bitmap; |
| 509 | wxCHECK_MSG( Ok(), bitmap, wxT("invalid image") ); |
| 510 | bitmap.SetWidth( width ); |
| 511 | bitmap.SetHeight( bmpHeight ); |
| 512 | bitmap.SetDepth( wxDisplayDepth() ); |
| 513 | |
| 514 | // create a DIB header |
| 515 | int headersize = sizeof(BITMAPINFOHEADER); |
| 516 | LPBITMAPINFO lpDIBh = (BITMAPINFO *) malloc( headersize ); |
| 517 | wxCHECK_MSG( lpDIBh, bitmap, wxT("could not allocate memory for DIB header") ); |
| 518 | // Fill in the DIB header |
| 519 | lpDIBh->bmiHeader.biSize = headersize; |
| 520 | lpDIBh->bmiHeader.biWidth = (DWORD)width; |
| 521 | lpDIBh->bmiHeader.biHeight = (DWORD)(-height); |
| 522 | lpDIBh->bmiHeader.biSizeImage = bytePerLine*height; |
| 523 | // the general formula for biSizeImage: |
| 524 | // ( ( ( ((DWORD)width*24) +31 ) & ~31 ) >> 3 ) * height; |
| 525 | lpDIBh->bmiHeader.biPlanes = 1; |
| 526 | lpDIBh->bmiHeader.biBitCount = 24; |
| 527 | lpDIBh->bmiHeader.biCompression = BI_RGB; |
| 528 | lpDIBh->bmiHeader.biClrUsed = 0; |
| 529 | // These seem not really needed for our purpose here. |
| 530 | lpDIBh->bmiHeader.biClrImportant = 0; |
| 531 | lpDIBh->bmiHeader.biXPelsPerMeter = 0; |
| 532 | lpDIBh->bmiHeader.biYPelsPerMeter = 0; |
| 533 | // memory for DIB data |
| 534 | unsigned char *lpBits; |
| 535 | lpBits = (unsigned char *)malloc( lpDIBh->bmiHeader.biSizeImage ); |
| 536 | if( !lpBits ) |
| 537 | { |
| 538 | wxFAIL_MSG( wxT("could not allocate memory for DIB") ); |
| 539 | free( lpDIBh ); |
| 540 | return bitmap; |
| 541 | } |
| 542 | |
| 543 | // create and set the device-dependent bitmap |
| 544 | HDC hdc = ::GetDC(NULL); |
| 545 | HDC memdc = ::CreateCompatibleDC( hdc ); |
| 546 | HBITMAP hbitmap; |
| 547 | hbitmap = ::CreateCompatibleBitmap( hdc, width, bmpHeight ); |
| 548 | ::SelectObject( memdc, hbitmap); |
| 549 | |
| 550 | // copy image data into DIB data and then into DDB (in a loop) |
| 551 | unsigned char *data = GetData(); |
| 552 | int i, j, n; |
| 553 | int origin = 0; |
| 554 | unsigned char *ptdata = data; |
| 555 | unsigned char *ptbits; |
| 556 | |
| 557 | for( n=0; n<numDIB; n++ ) |
| 558 | { |
| 559 | if( numDIB > 1 && n == numDIB-1 && hRemain > 0 ) |
| 560 | { |
| 561 | // redefine height and size of the (possibly) last smaller DIB |
| 562 | // memory is not reallocated |
| 563 | height = hRemain; |
| 564 | lpDIBh->bmiHeader.biHeight = (DWORD)(-height); |
| 565 | lpDIBh->bmiHeader.biSizeImage = bytePerLine*height; |
| 566 | } |
| 567 | ptbits = lpBits; |
| 568 | |
| 569 | for( j=0; j<height; j++ ) |
| 570 | { |
| 571 | for( i=0; i<width; i++ ) |
| 572 | { |
| 573 | *(ptbits++) = *(ptdata+2); |
| 574 | *(ptbits++) = *(ptdata+1); |
| 575 | *(ptbits++) = *(ptdata ); |
| 576 | ptdata += 3; |
| 577 | } |
| 578 | for( i=0; i< padding; i++ ) *(ptbits++) = 0; |
| 579 | } |
| 580 | ::StretchDIBits( memdc, 0, origin, width, height,\ |
| 581 | 0, 0, width, height, lpBits, lpDIBh, DIB_RGB_COLORS, SRCCOPY); |
| 582 | origin += height; |
| 583 | // if numDIB = 1, lines below can also be used |
| 584 | // hbitmap = CreateDIBitmap( hdc, &(lpDIBh->bmiHeader), CBM_INIT, lpBits, lpDIBh, DIB_RGB_COLORS ); |
| 585 | // The above line is equivalent to the following two lines. |
| 586 | // hbitmap = ::CreateCompatibleBitmap( hdc, width, height ); |
| 587 | // ::SetDIBits( hdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS); |
| 588 | // or the following lines |
| 589 | // hbitmap = ::CreateCompatibleBitmap( hdc, width, height ); |
| 590 | // HDC memdc = ::CreateCompatibleDC( hdc ); |
| 591 | // ::SelectObject( memdc, hbitmap); |
| 592 | // ::SetDIBitsToDevice( memdc, 0, 0, width, height, |
| 593 | // 0, 0, 0, height, (void *)lpBits, lpDIBh, DIB_RGB_COLORS); |
| 594 | // ::SelectObject( memdc, 0 ); |
| 595 | // ::DeleteDC( memdc ); |
| 596 | } |
| 597 | bitmap.SetHBITMAP( (WXHBITMAP) hbitmap ); |
| 598 | |
| 599 | // similarly, created an mono-bitmap for the possible mask |
| 600 | if( HasMask() ) |
| 601 | { |
| 602 | hbitmap = ::CreateBitmap( (WORD)width, (WORD)bmpHeight, 1, 1, NULL ); |
| 603 | ::SelectObject( memdc, hbitmap); |
| 604 | if( numDIB == 1 ) height = bmpHeight; |
| 605 | else height = sizeLimit/bytePerLine; |
| 606 | lpDIBh->bmiHeader.biHeight = (DWORD)(-height); |
| 607 | lpDIBh->bmiHeader.biSizeImage = bytePerLine*height; |
| 608 | origin = 0; |
| 609 | unsigned char r = GetMaskRed(); |
| 610 | unsigned char g = GetMaskGreen(); |
| 611 | unsigned char b = GetMaskBlue(); |
| 612 | unsigned char zero = 0, one = 255; |
| 613 | ptdata = data; |
| 614 | for( n=0; n<numDIB; n++ ) |
| 615 | { |
| 616 | if( numDIB > 1 && n == numDIB - 1 && hRemain > 0 ) |
| 617 | { |
| 618 | // redefine height and size of the (possibly) last smaller DIB |
| 619 | // memory is not reallocated |
| 620 | height = hRemain; |
| 621 | lpDIBh->bmiHeader.biHeight = (DWORD)(-height); |
| 622 | lpDIBh->bmiHeader.biSizeImage = bytePerLine*height; |
| 623 | } |
| 624 | ptbits = lpBits; |
| 625 | for( int j=0; j<height; j++ ) |
| 626 | { |
| 627 | for(i=0; i<width; i++ ) |
| 628 | { |
| 629 | if( (*(ptdata++)!=r) | (*(ptdata++)!=g) | (*(ptdata++)!=b) ) |
| 630 | { |
| 631 | *(ptbits++) = one; |
| 632 | *(ptbits++) = one; |
| 633 | *(ptbits++) = one; |
| 634 | } |
| 635 | else |
| 636 | { |
| 637 | *(ptbits++) = zero; |
| 638 | *(ptbits++) = zero; |
| 639 | *(ptbits++) = zero; |
| 640 | } |
| 641 | } |
| 642 | for( i=0; i< padding; i++ ) *(ptbits++) = zero; |
| 643 | } |
| 644 | ::StretchDIBits( memdc, 0, origin, width, height,\ |
| 645 | 0, 0, width, height, lpBits, lpDIBh, DIB_RGB_COLORS, SRCCOPY); |
| 646 | origin += height; |
| 647 | } |
| 648 | // create a wxMask object |
| 649 | wxMask *mask = new wxMask(); |
| 650 | mask->SetMaskBitmap( (WXHBITMAP) hbitmap ); |
| 651 | bitmap.SetMask( mask ); |
| 652 | } |
| 653 | |
| 654 | // free allocated resources |
| 655 | ::SelectObject( memdc, 0 ); |
| 656 | ::DeleteDC( memdc ); |
| 657 | ::ReleaseDC(NULL, hdc); |
| 658 | free(lpDIBh); |
| 659 | free(lpBits); |
| 660 | |
| 661 | // check the wxBitmap object |
| 662 | if( bitmap.GetHBITMAP() ) |
| 663 | bitmap.SetOk( TRUE ); |
| 664 | else |
| 665 | bitmap.SetOk( FALSE ); |
| 666 | */ |
| 667 | |
| 668 | return TRUE; |
| 669 | } |
| 670 | |
| 671 | wxImage wxBitmap::ConvertToImage() const |
| 672 | { |
| 673 | wxImage image; |
| 674 | |
| 675 | wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") ); |
| 676 | |
| 677 | // create an wxImage object |
| 678 | int width = GetWidth(); |
| 679 | int height = GetHeight(); |
| 680 | image.Create( width, height ); |
| 681 | unsigned char *data = image.GetData(); |
| 682 | if( !data ) |
| 683 | { |
| 684 | wxFAIL_MSG( wxT("could not allocate data for image") ); |
| 685 | return wxNullImage; |
| 686 | } |
| 687 | |
| 688 | // calc the number of bytes per scanline and padding in the DIB |
| 689 | int bytePerLine = width*3; |
| 690 | int sizeDWORD = sizeof( DWORD ); |
| 691 | int lineBoundary = bytePerLine % sizeDWORD; |
| 692 | int padding = 0; |
| 693 | if( lineBoundary > 0 ) |
| 694 | { |
| 695 | padding = sizeDWORD - lineBoundary; |
| 696 | bytePerLine += padding; |
| 697 | } |
| 698 | // TODO: |
| 699 | /* |
| 700 | // create a DIB header |
| 701 | int headersize = sizeof(BITMAPINFOHEADER); |
| 702 | LPBITMAPINFO lpDIBh = (BITMAPINFO *) malloc( headersize ); |
| 703 | if( !lpDIBh ) |
| 704 | { |
| 705 | wxFAIL_MSG( wxT("could not allocate data for DIB header") ); |
| 706 | free( data ); |
| 707 | return; |
| 708 | } |
| 709 | // Fill in the DIB header |
| 710 | lpDIBh->bmiHeader.biSize = headersize; |
| 711 | lpDIBh->bmiHeader.biWidth = width; |
| 712 | lpDIBh->bmiHeader.biHeight = -height; |
| 713 | lpDIBh->bmiHeader.biSizeImage = bytePerLine * height; |
| 714 | lpDIBh->bmiHeader.biPlanes = 1; |
| 715 | lpDIBh->bmiHeader.biBitCount = 24; |
| 716 | lpDIBh->bmiHeader.biCompression = BI_RGB; |
| 717 | lpDIBh->bmiHeader.biClrUsed = 0; |
| 718 | // These seem not really needed for our purpose here. |
| 719 | lpDIBh->bmiHeader.biClrImportant = 0; |
| 720 | lpDIBh->bmiHeader.biXPelsPerMeter = 0; |
| 721 | lpDIBh->bmiHeader.biYPelsPerMeter = 0; |
| 722 | // memory for DIB data |
| 723 | unsigned char *lpBits; |
| 724 | lpBits = (unsigned char *) malloc( lpDIBh->bmiHeader.biSizeImage ); |
| 725 | if( !lpBits ) |
| 726 | { |
| 727 | wxFAIL_MSG( wxT("could not allocate data for DIB") ); |
| 728 | free( data ); |
| 729 | free( lpDIBh ); |
| 730 | return; |
| 731 | } |
| 732 | |
| 733 | // copy data from the device-dependent bitmap to the DIB |
| 734 | HDC hdc = ::GetDC(NULL); |
| 735 | HBITMAP hbitmap; |
| 736 | hbitmap = (HBITMAP) bitmap.GetHBITMAP(); |
| 737 | ::GetDIBits( hdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS ); |
| 738 | |
| 739 | // copy DIB data into the wxImage object |
| 740 | int i, j; |
| 741 | unsigned char *ptdata = data; |
| 742 | unsigned char *ptbits = lpBits; |
| 743 | for( i=0; i<height; i++ ) |
| 744 | { |
| 745 | for( j=0; j<width; j++ ) |
| 746 | { |
| 747 | *(ptdata++) = *(ptbits+2); |
| 748 | *(ptdata++) = *(ptbits+1); |
| 749 | *(ptdata++) = *(ptbits ); |
| 750 | ptbits += 3; |
| 751 | } |
| 752 | ptbits += padding; |
| 753 | } |
| 754 | |
| 755 | // similarly, set data according to the possible mask bitmap |
| 756 | if( bitmap.GetMask() && bitmap.GetMask()->GetMaskBitmap() ) |
| 757 | { |
| 758 | hbitmap = (HBITMAP) bitmap.GetMask()->GetMaskBitmap(); |
| 759 | // memory DC created, color set, data copied, and memory DC deleted |
| 760 | HDC memdc = ::CreateCompatibleDC( hdc ); |
| 761 | ::SetTextColor( memdc, RGB( 0, 0, 0 ) ); |
| 762 | ::SetBkColor( memdc, RGB( 255, 255, 255 ) ); |
| 763 | ::GetDIBits( memdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS ); |
| 764 | ::DeleteDC( memdc ); |
| 765 | // background color set to RGB(16,16,16) in consistent with wxGTK |
| 766 | unsigned char r=16, g=16, b=16; |
| 767 | ptdata = data; |
| 768 | ptbits = lpBits; |
| 769 | for( i=0; i<height; i++ ) |
| 770 | { |
| 771 | for( j=0; j<width; j++ ) |
| 772 | { |
| 773 | if( *ptbits != 0 ) |
| 774 | ptdata += 3; |
| 775 | else |
| 776 | { |
| 777 | *(ptdata++) = r; |
| 778 | *(ptdata++) = g; |
| 779 | *(ptdata++) = b; |
| 780 | } |
| 781 | ptbits += 3; |
| 782 | } |
| 783 | ptbits += padding; |
| 784 | } |
| 785 | SetMaskColour( r, g, b ); |
| 786 | SetMask( TRUE ); |
| 787 | } |
| 788 | else |
| 789 | { |
| 790 | SetMask( FALSE ); |
| 791 | } |
| 792 | // free allocated resources |
| 793 | ::ReleaseDC(NULL, hdc); |
| 794 | free(lpDIBh); |
| 795 | free(lpBits); |
| 796 | */ |
| 797 | |
| 798 | return image; |
| 799 | } |
| 800 | |
| 801 | |
| 802 | // ---------------------------------------------------------------------------- |
| 803 | // sub bitmap extraction |
| 804 | // ---------------------------------------------------------------------------- |
| 805 | |
| 806 | wxBitmap wxBitmap::GetSubBitmap( |
| 807 | const wxRect& rRect |
| 808 | ) const |
| 809 | { |
| 810 | wxCHECK_MSG( Ok() && |
| 811 | (rRect.x >= 0) && (rRect.y >= 0) && |
| 812 | (rRect.x + rRect.width <= GetWidth()) && |
| 813 | (rRect.y + rRect.height <= GetHeight()), |
| 814 | wxNullBitmap, wxT("Invalid bitmap or bitmap region") ); |
| 815 | |
| 816 | wxBitmap vRet( rRect.width |
| 817 | ,rRect.height |
| 818 | ,GetDepth() |
| 819 | ); |
| 820 | wxASSERT_MSG( vRet.Ok(), wxT("GetSubBitmap error") ); |
| 821 | |
| 822 | |
| 823 | // |
| 824 | // Copy bitmap data |
| 825 | // |
| 826 | SIZEL vSize = {0, 0}; |
| 827 | DEVOPENSTRUC vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L}; |
| 828 | HDC hDCSrc = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE); |
| 829 | HDC hDCDst = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE); |
| 830 | HPS hPSSrc = ::GpiCreatePS(vHabmain, hDCSrc, &vSize, PU_PELS | GPIA_ASSOC); |
| 831 | HPS hPSDst = ::GpiCreatePS(vHabmain, hDCDst, &vSize, PU_PELS | GPIA_ASSOC); |
| 832 | POINTL vPoint[4] = { rRect.x, rRect.y, |
| 833 | rRect.x + rRect.width, rRect.y + rRect.height, |
| 834 | 0, 0, GetWidth(), GetHeight() |
| 835 | }; |
| 836 | |
| 837 | ::GpiSetBitmap(hPSSrc, (HBITMAP) GetHBITMAP()); |
| 838 | ::GpiSetBitmap(hPSDst, (HBITMAP) vRet.GetHBITMAP()); |
| 839 | ::GpiBitBlt( hPSDst |
| 840 | ,hPSSrc |
| 841 | ,4L |
| 842 | ,vPoint |
| 843 | ,ROP_SRCCOPY |
| 844 | ,BBO_IGNORE |
| 845 | ); |
| 846 | |
| 847 | // |
| 848 | // Copy mask if there is one |
| 849 | // |
| 850 | if (GetMask()) |
| 851 | { |
| 852 | BITMAPINFOHEADER2 vBmih; |
| 853 | |
| 854 | memset(&vBmih, '\0', sizeof(BITMAPINFOHEADER2)); |
| 855 | vBmih.cbFix = sizeof(BITMAPINFOHEADER2); |
| 856 | vBmih.cx = rRect.width; |
| 857 | vBmih.cy = rRect.height; |
| 858 | vBmih.cPlanes = 1; |
| 859 | vBmih.cBitCount = 1; |
| 860 | |
| 861 | HBITMAP hBmpMask = ::GpiCreateBitmap( hPSDst |
| 862 | ,&vBmih |
| 863 | ,0L |
| 864 | ,NULL |
| 865 | ,NULL |
| 866 | ); |
| 867 | |
| 868 | ::GpiSetBitmap(hPSSrc, (HBITMAP) GetHBITMAP()); |
| 869 | ::GpiSetBitmap(hPSDst, (HBITMAP) vRet.GetHBITMAP()); |
| 870 | |
| 871 | ::GpiSetBitmap(hPSSrc, (HBITMAP) GetMask()->GetMaskBitmap()); |
| 872 | ::GpiSetBitmap(hPSDst, (HBITMAP) hBmpMask); |
| 873 | ::GpiBitBlt( hPSDst |
| 874 | ,hPSSrc |
| 875 | ,4L |
| 876 | ,vPoint |
| 877 | ,ROP_SRCCOPY |
| 878 | ,BBO_IGNORE |
| 879 | ); |
| 880 | |
| 881 | wxMask* pMask = new wxMask((WXHBITMAP)hBmpMask); |
| 882 | vRet.SetMask(pMask); |
| 883 | } |
| 884 | |
| 885 | ::GpiSetBitmap(hPSSrc, NULL); |
| 886 | ::GpiSetBitmap(hPSDst, NULL); |
| 887 | ::GpiDestroyPS(hPSSrc); |
| 888 | ::GpiDestroyPS(hPSDst); |
| 889 | ::DevCloseDC(hDCSrc); |
| 890 | ::DevCloseDC(hDCDst); |
| 891 | return vRet; |
| 892 | } // end of wxBitmap::GetSubBitmap |
| 893 | |
| 894 | // ---------------------------------------------------------------------------- |
| 895 | // wxBitmap accessors |
| 896 | // ---------------------------------------------------------------------------- |
| 897 | |
| 898 | void wxBitmap::SetQuality( |
| 899 | int nQ |
| 900 | ) |
| 901 | { |
| 902 | EnsureHasData(); |
| 903 | |
| 904 | GetBitmapData()->m_nQuality = nQ; |
| 905 | } // end of wxBitmap::SetQuality |
| 906 | |
| 907 | #if WXWIN_COMPATIBILITY_2 |
| 908 | void wxBitmap::SetOk( |
| 909 | bool bOk |
| 910 | ) |
| 911 | { |
| 912 | EnsureHasData(); |
| 913 | |
| 914 | GetBitmapData()->m_bOk = bOk; |
| 915 | } // end of wxBitmap::SetOk |
| 916 | #endif // WXWIN_COMPATIBILITY_2 |
| 917 | |
| 918 | void wxBitmap::SetPalette( |
| 919 | const wxPalette& rPalette |
| 920 | ) |
| 921 | { |
| 922 | EnsureHasData(); |
| 923 | |
| 924 | GetBitmapData()->m_vBitmapPalette = rPalette; |
| 925 | } // end of wxBitmap::SetPalette |
| 926 | |
| 927 | void wxBitmap::SetMask( |
| 928 | wxMask* pMask |
| 929 | ) |
| 930 | { |
| 931 | EnsureHasData(); |
| 932 | |
| 933 | GetBitmapData()->m_pBitmapMask = pMask; |
| 934 | } // end of wxBitmap::SetMask |
| 935 | |
| 936 | // |
| 937 | // Will try something for OS/2 but not really sure how close |
| 938 | // to the msw intent this is. |
| 939 | // |
| 940 | wxBitmap wxBitmap::GetBitmapForDC( |
| 941 | wxDC& rDc |
| 942 | ) const |
| 943 | { |
| 944 | wxMemoryDC vMemDC; |
| 945 | wxBitmap vTmpBitmap( this->GetWidth() |
| 946 | ,this->GetHeight() |
| 947 | ,rDc.GetDepth() |
| 948 | ); |
| 949 | WXHBITMAP vOldBitmap; |
| 950 | HPS hMemoryPS; |
| 951 | HPS hPs; |
| 952 | POINTL vPoint[4]; |
| 953 | SIZEL vSize = {0,0}; |
| 954 | |
| 955 | hMemoryPS = ::GpiCreatePS(vHabmain, (HDC)vMemDC.GetHDC(), &vSize, PU_PELS | GPIT_MICRO | GPIA_ASSOC); |
| 956 | hPs = ::GpiCreatePS(vHabmain, (HDC)rDc.GetHDC(), &vSize, PU_PELS | GPIT_MICRO | GPIA_ASSOC); |
| 957 | |
| 958 | // TODO: Set the points |
| 959 | |
| 960 | vOldBitmap = (WXHBITMAP)::GpiSetBitmap(hPs, (HBITMAP)vTmpBitmap.GetHBITMAP()); |
| 961 | ::GpiBitBlt(hPs, hMemoryPS, 4L, vPoint, ROP_SRCCOPY, BBO_IGNORE); |
| 962 | |
| 963 | return(vTmpBitmap); |
| 964 | } // end of wxBitmap::GetBitmapForDC |
| 965 | |
| 966 | // ---------------------------------------------------------------------------- |
| 967 | // wxMask |
| 968 | // ---------------------------------------------------------------------------- |
| 969 | |
| 970 | wxMask::wxMask() |
| 971 | { |
| 972 | m_hMaskBitmap = 0; |
| 973 | } // end of wxMask::wxMask |
| 974 | |
| 975 | // Construct a mask from a bitmap and a colour indicating |
| 976 | // the transparent area |
| 977 | wxMask::wxMask( |
| 978 | const wxBitmap& rBitmap |
| 979 | , const wxColour& rColour |
| 980 | ) |
| 981 | { |
| 982 | m_hMaskBitmap = 0; |
| 983 | Create( rBitmap |
| 984 | ,rColour |
| 985 | ); |
| 986 | } // end of wxMask::wxMask |
| 987 | |
| 988 | // Construct a mask from a bitmap and a palette index indicating |
| 989 | // the transparent area |
| 990 | wxMask::wxMask( |
| 991 | const wxBitmap& rBitmap |
| 992 | , int nPaletteIndex |
| 993 | ) |
| 994 | { |
| 995 | m_hMaskBitmap = 0; |
| 996 | Create( rBitmap |
| 997 | ,nPaletteIndex |
| 998 | ); |
| 999 | } // end of wxMask::wxMask |
| 1000 | |
| 1001 | // Construct a mask from a mono bitmap (copies the bitmap). |
| 1002 | wxMask::wxMask( |
| 1003 | const wxBitmap& rBitmap |
| 1004 | ) |
| 1005 | { |
| 1006 | m_hMaskBitmap = 0; |
| 1007 | Create(rBitmap); |
| 1008 | } // end of wxMask::wxMask |
| 1009 | |
| 1010 | wxMask::~wxMask() |
| 1011 | { |
| 1012 | if (m_hMaskBitmap) |
| 1013 | ::GpiDeleteBitmap((HBITMAP)m_hMaskBitmap); |
| 1014 | } // end of wxMask::~wxMask |
| 1015 | |
| 1016 | // Create a mask from a mono bitmap (copies the bitmap). |
| 1017 | bool wxMask::Create( |
| 1018 | const wxBitmap& rBitmap |
| 1019 | ) |
| 1020 | { |
| 1021 | BITMAPINFOHEADER2 vBmih; |
| 1022 | SIZEL vSize = {0, 0}; |
| 1023 | DEVOPENSTRUC vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L}; |
| 1024 | HDC hDCSrc = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE); |
| 1025 | HDC hDCDst = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE); |
| 1026 | HPS hPSSrc = ::GpiCreatePS(vHabmain, hDCSrc, &vSize, PU_PELS | GPIA_ASSOC); |
| 1027 | HPS hPSDst = ::GpiCreatePS(vHabmain, hDCDst, &vSize, PU_PELS | GPIA_ASSOC); |
| 1028 | POINTL vPoint[4] = { 0 ,0, rBitmap.GetWidth(), rBitmap.GetHeight(), |
| 1029 | 0, 0, rBitmap.GetWidth(), rBitmap.GetHeight() |
| 1030 | }; |
| 1031 | |
| 1032 | if (m_hMaskBitmap) |
| 1033 | { |
| 1034 | ::GpiDeleteBitmap((HBITMAP) m_hMaskBitmap); |
| 1035 | m_hMaskBitmap = 0; |
| 1036 | } |
| 1037 | if (!rBitmap.Ok() || rBitmap.GetDepth() != 1) |
| 1038 | { |
| 1039 | return(FALSE); |
| 1040 | } |
| 1041 | |
| 1042 | memset(&vBmih, '\0', sizeof(BITMAPINFOHEADER2)); |
| 1043 | vBmih.cbFix = sizeof(BITMAPINFOHEADER2); |
| 1044 | vBmih.cx = rBitmap.GetWidth(); |
| 1045 | vBmih.cy = rBitmap.GetHeight(); |
| 1046 | vBmih.cPlanes = 1; |
| 1047 | vBmih.cBitCount = 1; |
| 1048 | |
| 1049 | m_hMaskBitmap = ::GpiCreateBitmap( hPSDst |
| 1050 | ,&vBmih |
| 1051 | ,0L |
| 1052 | ,NULL |
| 1053 | ,NULL |
| 1054 | ); |
| 1055 | |
| 1056 | ::GpiSetBitmap(hPSSrc, (HBITMAP) rBitmap.GetHBITMAP()); |
| 1057 | ::GpiSetBitmap(hPSDst, (HBITMAP) m_hMaskBitmap); |
| 1058 | ::GpiBitBlt( hPSDst |
| 1059 | ,hPSSrc |
| 1060 | ,4L |
| 1061 | ,vPoint |
| 1062 | ,ROP_SRCCOPY |
| 1063 | ,BBO_IGNORE |
| 1064 | ); |
| 1065 | |
| 1066 | ::GpiDestroyPS(hPSSrc); |
| 1067 | ::GpiDestroyPS(hPSDst); |
| 1068 | ::DevCloseDC(hDCSrc); |
| 1069 | ::DevCloseDC(hDCDst); |
| 1070 | return(TRUE); |
| 1071 | } // end of wxMask::Create |
| 1072 | |
| 1073 | // Create a mask from a bitmap and a palette index indicating |
| 1074 | // the transparent area |
| 1075 | bool wxMask::Create( |
| 1076 | const wxBitmap& rBitmap |
| 1077 | , int nPaletteIndex |
| 1078 | ) |
| 1079 | { |
| 1080 | if (m_hMaskBitmap) |
| 1081 | { |
| 1082 | ::GpiDeleteBitmap((HBITMAP) m_hMaskBitmap); |
| 1083 | m_hMaskBitmap = 0; |
| 1084 | } |
| 1085 | if (rBitmap.Ok() && rBitmap.GetPalette()->Ok()) |
| 1086 | { |
| 1087 | unsigned char cRed; |
| 1088 | unsigned char cGreen; |
| 1089 | unsigned char cBlue; |
| 1090 | |
| 1091 | if (rBitmap.GetPalette()->GetRGB( nPaletteIndex |
| 1092 | ,&cRed |
| 1093 | ,&cGreen |
| 1094 | ,&cBlue |
| 1095 | )) |
| 1096 | { |
| 1097 | wxColour vTransparentColour( cRed |
| 1098 | ,cGreen |
| 1099 | ,cBlue |
| 1100 | ); |
| 1101 | |
| 1102 | return (Create( rBitmap |
| 1103 | ,vTransparentColour |
| 1104 | )); |
| 1105 | } |
| 1106 | } |
| 1107 | return(FALSE); |
| 1108 | } // end of wxMask::Create |
| 1109 | |
| 1110 | // Create a mask from a bitmap and a colour indicating |
| 1111 | // the transparent area |
| 1112 | bool wxMask::Create( |
| 1113 | const wxBitmap& rBitmap |
| 1114 | , const wxColour& rColour |
| 1115 | ) |
| 1116 | { |
| 1117 | bool bOk = TRUE; |
| 1118 | COLORREF vMaskColour = OS2RGB( rColour.Red() |
| 1119 | ,rColour.Green() |
| 1120 | ,rColour.Blue() |
| 1121 | ); |
| 1122 | BITMAPINFOHEADER2 vBmih; |
| 1123 | SIZEL vSize = {0, 0}; |
| 1124 | DEVOPENSTRUC vDop = { NULL, "DISPLAY", NULL, NULL, NULL, NULL, NULL, NULL, NULL }; |
| 1125 | HDC hDCSrc = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE); |
| 1126 | HDC hDCDst = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE); |
| 1127 | HPS hPSSrc = ::GpiCreatePS(vHabmain, hDCSrc, &vSize, PU_PELS | GPIA_ASSOC); |
| 1128 | HPS hPSDst = ::GpiCreatePS(vHabmain, hDCDst, &vSize, PU_PELS | GPIA_ASSOC); |
| 1129 | POINTL vPoint[4] = { 0 ,0, rBitmap.GetWidth(), rBitmap.GetHeight(), |
| 1130 | 0, 0, rBitmap.GetWidth(), rBitmap.GetHeight() |
| 1131 | }; |
| 1132 | |
| 1133 | if (m_hMaskBitmap) |
| 1134 | { |
| 1135 | ::GpiDeleteBitmap((HBITMAP) m_hMaskBitmap); |
| 1136 | m_hMaskBitmap = 0; |
| 1137 | } |
| 1138 | if (!rBitmap.Ok()) |
| 1139 | { |
| 1140 | return(FALSE); |
| 1141 | } |
| 1142 | |
| 1143 | // |
| 1144 | // Scan the bitmap for the transparent colour and set |
| 1145 | // the corresponding pixels in the mask to BLACK and |
| 1146 | // the rest to WHITE |
| 1147 | // |
| 1148 | |
| 1149 | memset(&vBmih, '\0', sizeof(BITMAPINFOHEADER2)); |
| 1150 | vBmih.cbFix = sizeof(BITMAPINFOHEADER2); |
| 1151 | vBmih.cx = rBitmap.GetWidth(); |
| 1152 | vBmih.cy = rBitmap.GetHeight(); |
| 1153 | vBmih.cPlanes = 1; |
| 1154 | vBmih.cBitCount = 1; |
| 1155 | |
| 1156 | m_hMaskBitmap = ::GpiCreateBitmap( hPSDst |
| 1157 | ,&vBmih |
| 1158 | ,0L |
| 1159 | ,NULL |
| 1160 | ,NULL |
| 1161 | ); |
| 1162 | |
| 1163 | ::GpiSetBitmap(hPSSrc, (HBITMAP) rBitmap.GetHBITMAP()); |
| 1164 | ::GpiSetBitmap(hPSDst, (HBITMAP) m_hMaskBitmap); |
| 1165 | |
| 1166 | // |
| 1167 | // This is not very efficient, but I can't think |
| 1168 | // of a better way of doing it |
| 1169 | // |
| 1170 | for (int w = 0; w < rBitmap.GetWidth(); w++) |
| 1171 | { |
| 1172 | for (int h = 0; h < rBitmap.GetHeight(); h++) |
| 1173 | { |
| 1174 | POINTL vPt = {w, h}; |
| 1175 | COLORREF vCol = (COLORREF)::GpiQueryPel(hPSSrc, &vPt); |
| 1176 | if (vCol == (COLORREF)CLR_NOINDEX) |
| 1177 | { |
| 1178 | // |
| 1179 | // Doesn't make sense to continue |
| 1180 | // |
| 1181 | bOk = FALSE; |
| 1182 | break; |
| 1183 | } |
| 1184 | |
| 1185 | if (vCol == vMaskColour) |
| 1186 | { |
| 1187 | ::GpiSetColor(hPSDst, OS2RGB(0, 0, 0)); |
| 1188 | ::GpiSetPel(hPSDst, &vPt); |
| 1189 | } |
| 1190 | else |
| 1191 | { |
| 1192 | ::GpiSetColor(hPSDst, OS2RGB(255, 255, 255)); |
| 1193 | ::GpiSetPel(hPSDst, &vPt); |
| 1194 | } |
| 1195 | } |
| 1196 | } |
| 1197 | ::GpiSetBitmap(hPSSrc, NULL); |
| 1198 | ::GpiSetBitmap(hPSDst, NULL); |
| 1199 | ::GpiDestroyPS(hPSSrc); |
| 1200 | ::GpiDestroyPS(hPSDst); |
| 1201 | ::DevCloseDC(hDCSrc); |
| 1202 | ::DevCloseDC(hDCDst); |
| 1203 | return(TRUE); |
| 1204 | } // end of wxMask::Create |
| 1205 | |
| 1206 | // ---------------------------------------------------------------------------- |
| 1207 | // wxBitmapHandler |
| 1208 | // ---------------------------------------------------------------------------- |
| 1209 | |
| 1210 | bool wxBitmapHandler::Create( |
| 1211 | wxGDIImage* pImage |
| 1212 | , void* pData |
| 1213 | , long lFlags |
| 1214 | , int nWidth |
| 1215 | , int nHeight |
| 1216 | , int nDepth |
| 1217 | ) |
| 1218 | { |
| 1219 | wxBitmap* pBitmap = wxDynamicCast( pImage |
| 1220 | ,wxBitmap |
| 1221 | ); |
| 1222 | |
| 1223 | return(pBitmap ? Create( pBitmap |
| 1224 | ,pData |
| 1225 | ,nWidth |
| 1226 | ,nHeight |
| 1227 | ,nDepth |
| 1228 | ) : FALSE); |
| 1229 | } |
| 1230 | |
| 1231 | bool wxBitmapHandler::Load( |
| 1232 | wxGDIImage* pImage |
| 1233 | , const wxString& rName |
| 1234 | , HPS hPs |
| 1235 | , long lFlags |
| 1236 | , int nWidth |
| 1237 | , int nHeight |
| 1238 | ) |
| 1239 | { |
| 1240 | wxBitmap* pBitmap = wxDynamicCast( pImage |
| 1241 | ,wxBitmap |
| 1242 | ); |
| 1243 | |
| 1244 | return(pBitmap ? LoadFile( pBitmap |
| 1245 | ,rName |
| 1246 | ,hPs |
| 1247 | ,lFlags |
| 1248 | ,nWidth |
| 1249 | ,nHeight |
| 1250 | ) : FALSE); |
| 1251 | } |
| 1252 | |
| 1253 | bool wxBitmapHandler::Save( |
| 1254 | wxGDIImage* pImage |
| 1255 | , const wxString& rName |
| 1256 | , int lType |
| 1257 | ) |
| 1258 | { |
| 1259 | wxBitmap* pBitmap = wxDynamicCast( pImage |
| 1260 | ,wxBitmap |
| 1261 | ); |
| 1262 | |
| 1263 | return(pBitmap ? SaveFile( pBitmap |
| 1264 | ,rName |
| 1265 | ,lType |
| 1266 | ) : FALSE); |
| 1267 | } |
| 1268 | |
| 1269 | bool wxBitmapHandler::Create( |
| 1270 | wxBitmap* WXUNUSED(pBitmap) |
| 1271 | , void* WXUNUSED(pData) |
| 1272 | , long WXUNUSED(lType) |
| 1273 | , int WXUNUSED(nWidth) |
| 1274 | , int WXUNUSED(nHeight) |
| 1275 | , int WXUNUSED(nDepth) |
| 1276 | ) |
| 1277 | { |
| 1278 | return(FALSE); |
| 1279 | } |
| 1280 | |
| 1281 | bool wxBitmapHandler::LoadFile( |
| 1282 | wxBitmap* WXUNUSED(pBitmap) |
| 1283 | , const wxString& WXUNUSED(rName) |
| 1284 | , HPS WXUNUSED(hPs) |
| 1285 | , long WXUNUSED(lType) |
| 1286 | , int WXUNUSED(nDesiredWidth) |
| 1287 | , int WXUNUSED(nDesiredHeight) |
| 1288 | ) |
| 1289 | { |
| 1290 | return(FALSE); |
| 1291 | } |
| 1292 | |
| 1293 | bool wxBitmapHandler::SaveFile( |
| 1294 | wxBitmap* WXUNUSED(pBitmap) |
| 1295 | , const wxString& WXUNUSED(rName) |
| 1296 | , int WXUNUSED(nType) |
| 1297 | , const wxPalette* WXUNUSED(pPalette) |
| 1298 | ) |
| 1299 | { |
| 1300 | return(FALSE); |
| 1301 | } |
| 1302 | |
| 1303 | // ---------------------------------------------------------------------------- |
| 1304 | // Utility functions |
| 1305 | // ---------------------------------------------------------------------------- |
| 1306 | HBITMAP wxInvertMask( |
| 1307 | HBITMAP hBmpMask |
| 1308 | , int nWidth |
| 1309 | , int nHeight |
| 1310 | ) |
| 1311 | { |
| 1312 | HBITMAP hBmpInvMask = 0; |
| 1313 | |
| 1314 | wxCHECK_MSG( hBmpMask, 0, _T("invalid bitmap in wxInvertMask") ); |
| 1315 | |
| 1316 | // |
| 1317 | // Get width/height from the bitmap if not given |
| 1318 | // |
| 1319 | if (!nWidth || !nHeight) |
| 1320 | { |
| 1321 | BITMAPINFOHEADER2 vBmhdr; |
| 1322 | |
| 1323 | ::GpiQueryBitmapInfoHeader( hBmpMask |
| 1324 | ,&vBmhdr |
| 1325 | ); |
| 1326 | nWidth = (int)vBmhdr.cx; |
| 1327 | nHeight = (int)vBmhdr.cy; |
| 1328 | } |
| 1329 | |
| 1330 | BITMAPINFOHEADER2 vBmih; |
| 1331 | SIZEL vSize = {0, 0}; |
| 1332 | DEVOPENSTRUC vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L}; |
| 1333 | HDC hDCSrc = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE); |
| 1334 | HDC hDCDst = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE); |
| 1335 | HPS hPSSrc = ::GpiCreatePS(vHabmain, hDCSrc, &vSize, PU_PELS | GPIA_ASSOC); |
| 1336 | HPS hPSDst = ::GpiCreatePS(vHabmain, hDCDst, &vSize, PU_PELS | GPIA_ASSOC); |
| 1337 | POINTL vPoint[4] = { 0 ,0, nWidth, nHeight, |
| 1338 | 0, 0, nWidth, nHeight |
| 1339 | }; |
| 1340 | |
| 1341 | memset(&vBmih, '\0', sizeof(BITMAPINFOHEADER2)); |
| 1342 | vBmih.cbFix = sizeof(BITMAPINFOHEADER2); |
| 1343 | vBmih.cx = nWidth; |
| 1344 | vBmih.cy = nHeight; |
| 1345 | vBmih.cPlanes = 1; |
| 1346 | vBmih.cBitCount = 1; |
| 1347 | |
| 1348 | hBmpInvMask = ::GpiCreateBitmap( hPSDst |
| 1349 | ,&vBmih |
| 1350 | ,0L |
| 1351 | ,NULL |
| 1352 | ,NULL |
| 1353 | ); |
| 1354 | |
| 1355 | ::GpiSetBitmap(hPSSrc, (HBITMAP) hBmpMask); |
| 1356 | ::GpiSetBitmap(hPSDst, (HBITMAP) hBmpInvMask); |
| 1357 | |
| 1358 | ::GpiBitBlt( hPSDst |
| 1359 | ,hPSSrc |
| 1360 | ,4L |
| 1361 | ,vPoint |
| 1362 | ,ROP_SRCINVERT |
| 1363 | ,BBO_IGNORE |
| 1364 | ); |
| 1365 | |
| 1366 | ::GpiDestroyPS(hPSSrc); |
| 1367 | ::GpiDestroyPS(hPSDst); |
| 1368 | ::DevCloseDC(hDCSrc); |
| 1369 | ::DevCloseDC(hDCDst); |
| 1370 | |
| 1371 | return hBmpInvMask; |
| 1372 | } // end of WxWinGdi_InvertMask |