src/os2/bitmap.cpp

   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 #include "wx/xpmdecod.h"
  37
  38 // ----------------------------------------------------------------------------
  39 // macros
  40 // ----------------------------------------------------------------------------
  41
  42 IMPLEMENT_DYNAMIC_CLASS(wxBitmap, wxGDIObject)
  43 IMPLEMENT_DYNAMIC_CLASS(wxMask, wxObject)
  44
  45 IMPLEMENT_DYNAMIC_CLASS(wxBitmapHandler, wxObject)
  46
  47 // ============================================================================
  48 // implementation
  49 // ============================================================================
  50
  51 // ----------------------------------------------------------------------------
  52 // wxBitmapRefData
  53 // ----------------------------------------------------------------------------
  54
  55 wxBitmapRefData::wxBitmapRefData()
  56 {
  57     m_nQuality      = 0;
  58     m_pSelectedInto = NULL;
  59     m_nNumColors    = 0;
  60     m_pBitmapMask   = NULL;
  61     m_hBitmap = (WXHBITMAP) NULL;
  62 } // end of wxBitmapRefData::wxBitmapRefData
  63
  64 void wxBitmapRefData::Free()
  65 {
  66     if ( m_pSelectedInto )
  67     {
  68         wxLogLastError("GpiDeleteBitmap(hbitmap)");
  69     }
  70     if (m_hBitmap)
  71     {
  72         if (!::GpiDeleteBitmap((HBITMAP)m_hBitmap))
  73         {
  74             wxLogLastError("GpiDeleteBitmap(hbitmap)");
  75         }
  76     }
  77
  78     delete m_pBitmapMask;
  79     m_pBitmapMask = NULL;
  80 } // end of wxBitmapRefData::Free
  81
  82 // ----------------------------------------------------------------------------
  83 // wxBitmap creation
  84 // ----------------------------------------------------------------------------
  85
  86 // this function should be called from all wxBitmap ctors
  87 void wxBitmap::Init()
  88 {
  89 } // end of wxBitmap::Init
  90
  91 bool wxBitmap::CopyFromIconOrCursor(
  92   const wxGDIImage&                 rIcon
  93 )
  94 {
  95     HPOINTER                        hIcon = (HPOINTER)rIcon.GetHandle();
  96     POINTERINFO                     SIconInfo;
  97
  98     if (!::WinQueryPointerInfo(hIcon, &SIconInfo))
  99     {
 100         wxLogLastError(wxT("WinQueryPointerInfo"));
 101         return FALSE;
 102     }
 103     wxBitmapRefData*                pRefData = new wxBitmapRefData;
 104
 105     m_refData = pRefData;
 106
 107     int                             nWidth = rIcon.GetWidth();
 108     int                             nHeight = rIcon.GetHeight();
 109
 110     pRefData->m_nWidth  = nWidth;
 111     pRefData->m_nHeight = nHeight;
 112     pRefData->m_nDepth  = wxDisplayDepth();
 113
 114     pRefData->m_hBitmap = (WXHBITMAP)SIconInfo.hbmColor;
 115
 116     //
 117     // No mask in the Info struct in OS/2
 118     //
 119     return(TRUE);
 120 } // end of wxBitmap::CopyFromIconOrCursor
 121
 122 bool wxBitmap::CopyFromCursor(
 123   const wxCursor&                   rCursor
 124 )
 125 {
 126     UnRef();
 127
 128     if (!rCursor.Ok())
 129         return(FALSE);
 130     return(CopyFromIconOrCursor(rCursor));
 131 } // end of wxBitmap::CopyFromCursor
 132
 133 bool wxBitmap::CopyFromIcon(
 134   const wxIcon&                     rIcon
 135 )
 136 {
 137     UnRef();
 138
 139     if (!rIcon.Ok())
 140         return(FALSE);
 141
 142     return CopyFromIconOrCursor(rIcon);
 143 } // end of wxBitmap::CopyFromIcon
 144
 145 wxBitmap::~wxBitmap()
 146 {
 147 } // end of wxBitmap::~wxBitmap
 148
 149 wxBitmap::wxBitmap(
 150   const char                        zBits[]
 151 , int                               nWidth
 152 , int                               nHeight
 153 , int                               nDepth
 154 )
 155 {
 156     Init();
 157
 158     wxBitmapRefData*                pRefData = new wxBitmapRefData;
 159     BITMAPINFOHEADER2               vHeader;
 160     BITMAPINFO2                     vInfo;
 161     HDC                             hDc;
 162     HPS                             hPs;
 163     DEVOPENSTRUC                    vDop = { NULL, "DISPLAY", NULL, NULL, NULL, NULL, NULL, NULL, NULL };
 164     SIZEL                           vSize = {0, 0};
 165     char*                           pzData;
 166
 167     wxASSERT(vHabmain != NULL);
 168
 169     m_refData = pRefData;
 170
 171     pRefData->m_nWidth        = nWidth;
 172     pRefData->m_nHeight       = nHeight;
 173     pRefData->m_nDepth        = nDepth;
 174     pRefData->m_nNumColors    = 0;
 175     pRefData->m_pSelectedInto = NULL;
 176
 177     hDc   = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE);
 178     hPs = ::GpiCreatePS(vHabmain, hDc, &vSize, GPIA_ASSOC | PU_PELS);
 179     if (hPs == 0)
 180     {
 181         wxLogLastError("GpiCreatePS Failure");
 182     }
 183
 184     if (nDepth == 1)
 185     {
 186         //
 187         // We assume that it is in XBM format which is not quite the same as
 188         // the format CreateBitmap() wants because the order of bytes in the
 189         // line is inversed!
 190         //
 191         const size_t                nBytesPerLine = (nWidth + 7) / 8;
 192         const size_t                nPadding = nBytesPerLine % 2;
 193         const size_t                nLen = nHeight * (nPadding + nBytesPerLine);
 194         const char*                 pzSrc = zBits;
 195         int                         nRows;
 196         size_t                      nCols;
 197
 198         pzData = (char *)malloc(nLen);
 199
 200         char*                       pzDst = pzData;
 201
 202         for (nRows = 0; nRows < nHeight; nRows++)
 203         {
 204             for (nCols = 0; nCols < nBytesPerLine; nCols++)
 205             {
 206                 unsigned char       ucVal = *pzSrc++;
 207                 unsigned char       ucReversed = 0;
 208                 int                 nBits;
 209
 210                 for (nBits = 0; nBits < 8; nBits++)
 211                 {
 212                     ucReversed <<= 1;
 213                     ucReversed |= (ucVal & 0x01);
 214                     ucVal >>= 1;
 215                 }
 216                 *pzDst++ = ucReversed;
 217             }
 218             if (nPadding)
 219                 *pzDst++ = 0;
 220         }
 221     }
 222     else
 223     {
 224         //
 225         // Bits should already be in Windows standard format
 226         //
 227         pzData = (char *)zBits;    // const_cast is harmless
 228     }
 229
 230     memset(&vHeader, '\0', 16);
 231     vHeader.cbFix           = 16;
 232     vHeader.cx              = (USHORT)nWidth;
 233     vHeader.cy              = (USHORT)nHeight;
 234     vHeader.cPlanes         = 1L;
 235     vHeader.cBitCount       = nDepth;
 236     vHeader.usReserved      = 0;
 237
 238     memset(&vInfo, '\0', 16);
 239     vInfo.cbFix           = 16;
 240     vInfo.cx              = (USHORT)nWidth;
 241     vInfo.cy              = (USHORT)nHeight;
 242     vInfo.cPlanes         = 1L;
 243     vInfo.cBitCount       = nDepth;
 244
 245     HBITMAP                         hBmp = ::GpiCreateBitmap(hPs, &vHeader, CBM_INIT, (PBYTE)pzData, &vInfo);
 246
 247     if (!hBmp)
 248     {
 249         wxLogLastError("CreateBitmap");
 250     }
 251     ::GpiDestroyPS(hPs);
 252     ::DevCloseDC(hDc);
 253     SetHBITMAP((WXHBITMAP)hBmp);
 254 } // end of wxBitmap::wxBitmap
 255
 256 wxBitmap::wxBitmap(
 257   int                               nW
 258 , int                               nH
 259 , int                               nD
 260 )
 261 {
 262     Init();
 263
 264     (void)Create( nW
 265                  ,nH
 266                  ,nD
 267                 );
 268 } // end of wxBitmap::wxBitmap
 269
 270 wxBitmap::wxBitmap(
 271   void*                             pData
 272 , long                              lType
 273 , int                               nWidth
 274 , int                               nHeight
 275 , int                               nDepth
 276 )
 277 {
 278     Init();
 279
 280     (void)Create( pData
 281                  ,lType
 282                  ,nWidth
 283                  ,nHeight
 284                  ,nDepth
 285                 );
 286 } // end of wxBitmap::wxBitmap
 287
 288 wxBitmap::wxBitmap(
 289   const wxString&                   rFilename
 290 , long                              lType
 291 )
 292 {
 293     Init();
 294
 295     LoadFile( rFilename
 296              ,(int)lType
 297             );
 298 } // end of wxBitmap::wxBitmap
 299
 300 bool wxBitmap::Create(
 301   int                               nW
 302 , int                               nH
 303 , int                               nD
 304 )
 305 {
 306     HBITMAP                         hBmp;
 307     BITMAPINFOHEADER2               vHeader;
 308
 309     wxASSERT(vHabmain != NULL);
 310     UnRef();
 311     m_refData = new wxBitmapRefData;
 312     GetBitmapData()->m_nWidth = nW;
 313     GetBitmapData()->m_nHeight = nH;
 314     GetBitmapData()->m_nDepth = nD;
 315
 316     if (nD > 0)
 317     {
 318         DEVOPENSTRUC                vDop  = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L};
 319         SIZEL                       vSize = {0, 0};
 320         HDC                         hDC   = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE);
 321         HPS                         hPS   = ::GpiCreatePS(vHabmain, hDC, &vSize, PU_PELS | GPIA_ASSOC);
 322
 323         memset(&vHeader, '\0', 16);
 324         vHeader.cbFix     =  16;
 325         vHeader.cx        = nW;
 326         vHeader.cy        = nH;
 327         vHeader.cPlanes   = 1;
 328         vHeader.cBitCount = nD;
 329
 330         hBmp = ::GpiCreateBitmap( hPS
 331                                  ,&vHeader
 332                                  ,0L
 333                                  ,NULL
 334                                  ,NULL
 335                                 );
 336         ::GpiDestroyPS(hPS);
 337         ::DevCloseDC(hDC);
 338     }
 339     else
 340     {
 341         HPS                             hPSScreen;
 342         HDC                             hDCScreen;
 343         LONG                            lBitCount;
 344
 345         hPSScreen = ::WinGetScreenPS(HWND_DESKTOP);
 346         hDCScreen = ::GpiQueryDevice(hPSScreen);
 347         ::DevQueryCaps(hDCScreen, CAPS_COLOR_BITCOUNT, 1L, &lBitCount);
 348
 349         memset(&vHeader, '\0', 16);
 350         vHeader.cbFix     =  16;
 351         vHeader.cx        = nW;
 352         vHeader.cy        = nH;
 353         vHeader.cPlanes   = 1;
 354         vHeader.cBitCount = lBitCount;
 355
 356         hBmp = ::GpiCreateBitmap( hPSScreen
 357                                  ,&vHeader
 358                                  ,0L
 359                                  ,NULL
 360                                  ,NULL
 361                                 );
 362
 363         GetBitmapData()->m_nDepth = wxDisplayDepth();
 364         ::WinReleasePS(hPSScreen);
 365     }
 366     SetHBITMAP((WXHBITMAP)hBmp);
 367
 368 #if WXWIN_COMPATIBILITY_2
 369     GetBitmapData()->m_bOk = hBmp != 0;
 370 #endif // WXWIN_COMPATIBILITY_2
 371
 372     return Ok();
 373 } // end of wxBitmap::Create
 374
 375 bool wxBitmap::CreateFromXpm(
 376   const char**                      ppData
 377 )
 378 {
 379 #if wxUSE_IMAGE && wxUSE_XPM
 380     Init();
 381
 382     wxCHECK_MSG(ppData != NULL, FALSE, wxT("invalid bitmap data"))
 383
 384     wxXPMDecoder                    vDecoder;
 385     wxImage                         vImg = vDecoder.ReadData(ppData);
 386
 387     wxCHECK_MSG(vImg.Ok(), FALSE, wxT("invalid bitmap data"))
 388
 389     *this = wxBitmap(vImg);
 390     return TRUE;
 391 #else
 392     return FALSE;
 393 #endif
 394 } // end of wxBitmap::CreateFromXpm
 395
 396 bool wxBitmap::LoadFile(
 397   const wxString&                   rFilename
 398 , long                              lType
 399 )
 400 {
 401     HPS                             hPs = NULLHANDLE;
 402
 403     UnRef();
 404
 405     wxBitmapHandler*                pHandler = wxDynamicCast( FindHandler(lType)
 406                                                              ,wxBitmapHandler
 407                                                             );
 408
 409     if (pHandler)
 410     {
 411         m_refData = new wxBitmapRefData;
 412
 413         return(pHandler->LoadFile( this
 414                                   ,rFilename
 415                                   ,hPs
 416                                   ,lType
 417                                   , -1
 418                                   , -1
 419                                  ));
 420     }
 421     else
 422     {
 423         wxImage                     vImage;
 424
 425         if (!vImage.LoadFile(rFilename, lType) || !vImage.Ok() )
 426             return(FALSE);
 427
 428         *this = wxBitmap(vImage);
 429
 430         return(TRUE);
 431     }
 432 } // end of wxBitmap::LoadFile
 433
 434 bool wxBitmap::Create(
 435   void*                             pData
 436 , long                              lType
 437 , int                               nWidth
 438 , int                               nHeight
 439 , int                               nDepth
 440 )
 441 {
 442     UnRef();
 443
 444     wxBitmapHandler*                pHandler = wxDynamicCast( FindHandler(lType)
 445                                                              ,wxBitmapHandler
 446                                                             );
 447
 448     if (!pHandler)
 449     {
 450         wxLogDebug(wxT("Failed to create bitmap: no bitmap handler for "
 451                        "type %d defined."), lType);
 452
 453         return(FALSE);
 454     }
 455
 456     m_refData = new wxBitmapRefData;
 457
 458     return(pHandler->Create( this
 459                             ,pData
 460                             ,lType
 461                             ,nWidth
 462                             ,nHeight
 463                             ,nDepth
 464                            ));
 465 } // end of wxBitmap::Create
 466
 467 bool wxBitmap::SaveFile(
 468   const wxString&                   rFilename
 469 , int                               lType
 470 , const wxPalette*                  pPalette
 471 )
 472 {
 473     wxBitmapHandler*                pHandler = wxDynamicCast( FindHandler(lType)
 474                                                              ,wxBitmapHandler
 475                                                             );
 476
 477     if (pHandler)
 478     {
 479         return pHandler->SaveFile( this
 480                                   ,rFilename
 481                                   ,lType
 482                                   ,pPalette
 483                                  );
 484     }
 485     else
 486     {
 487         // FIXME what about palette? shouldn't we use it?
 488         wxImage                     vImage = ConvertToImage();
 489
 490         if (!vImage.Ok())
 491             return(FALSE);
 492
 493         return(vImage.SaveFile( rFilename
 494                                ,lType
 495                               ));
 496     }
 497 } // end of wxBitmap::SaveFile
 498
 499
 500 // ----------------------------------------------------------------------------
 501 // wxImage-wxBitmap convertion
 502 // ----------------------------------------------------------------------------
 503
 504 bool wxBitmap::CreateFromImage (
 505   const wxImage&                    rImage
 506 , int                               nDepth
 507 )
 508 {
 509     wxCHECK_MSG(rImage.Ok(), FALSE, wxT("invalid image"));
 510     m_refData = new wxBitmapRefData();
 511
 512
 513     int                             nSizeLimit = 1024 * 768 * 3;
 514     int                             nWidth = rImage.GetWidth();
 515     int                             nBmpHeight = rImage.GetHeight();
 516     int                             nBytePerLine = nWidth * 3;
 517     int                             nSizeDWORD = sizeof(DWORD);
 518     int                             nLineBoundary = nBytePerLine % nSizeDWORD;
 519     int                             nPadding = 0;
 520
 521     if (nLineBoundary > 0)
 522     {
 523         nPadding = nSizeDWORD - nLineBoundary;
 524         nBytePerLine += nPadding;
 525     }
 526
 527     //
 528     // Calc the number of DIBs and heights of DIBs
 529     //
 530     int                             nNumDIB = 1;
 531     int                             nHRemain = 0;
 532     int                             nHeight = nSizeLimit / nBytePerLine;
 533
 534     if (nHeight >= nBmpHeight)
 535         nHeight = nBmpHeight;
 536     else
 537     {
 538         nNumDIB  = nBmpHeight / nHeight;
 539         nHRemain = nBmpHeight % nHeight;
 540         if (nHRemain > 0)
 541             nNumDIB++;
 542     }
 543
 544     //
 545     // Set bitmap parameters
 546     //
 547     wxCHECK_MSG(rImage.Ok(), FALSE, wxT("invalid image"));
 548     SetWidth(nWidth);
 549     SetHeight(nBmpHeight);
 550     if (nDepth == -1)
 551         nDepth = 16; // wxDisplayDepth();
 552     SetDepth(nDepth);
 553
 554 #if wxUSE_PALETTE
 555     //
 556     // Copy the palette from the source image
 557     //
 558     SetPalette(rImage.GetPalette());
 559 #endif // wxUSE_PALETTE
 560
 561     //
 562     // Create a DIB header
 563     //
 564     BITMAPINFOHEADER2               vHeader;
 565     BITMAPINFO2                     vInfo;
 566
 567     //
 568     // Fill in the DIB header
 569     //
 570     memset(&vHeader, '\0', 16);
 571     vHeader.cbFix           = 16;
 572     vHeader.cx              = (ULONG)nWidth;
 573     vHeader.cy              = (ULONG)nHeight;
 574     vHeader.cPlanes         = 1L;
 575     vHeader.cBitCount       = 24;
 576
 577     memset(&vInfo, '\0', 16);
 578     vInfo.cbFix           = 16;
 579     vInfo.cx              = (ULONG)nWidth;
 580     vInfo.cy              = (ULONG)nHeight;
 581     vInfo.cPlanes         = 1L;
 582     vInfo.cBitCount       = 24;
 583     //
 584     // Memory for DIB data
 585     //
 586     unsigned char*                  pucBits;
 587
 588     pucBits = (unsigned char *)malloc(nBytePerLine * nHeight);
 589     if(!pucBits)
 590     {
 591         wxFAIL_MSG(wxT("could not allocate memory for DIB"));
 592         return FALSE;
 593     }
 594
 595     //
 596     // Create and set the device-dependent bitmap
 597     //
 598     DEVOPENSTRUC                    vDop  = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L};
 599     SIZEL                           vSize = {0, 0};
 600     HDC                             hDC   = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE);
 601     HPS                             hPS   = ::GpiCreatePS(vHabmain, hDC, &vSize, PU_PELS | GPIA_ASSOC);
 602     LONG                            lScans;
 603     HDC                             hDCScreen = ::WinOpenWindowDC(HWND_DESKTOP);
 604     HPS                             hPSScreen;
 605     HBITMAP                         hBmp;
 606     HBITMAP                         hBmpOld;
 607
 608     hBmp = ::GpiCreateBitmap( hPS
 609                              ,&vHeader
 610                              ,0L
 611                              ,NULL
 612                              ,NULL
 613                             );
 614     hBmpOld = ::GpiSetBitmap(hPS, hBmp);
 615 #if wxUSE_PALETTE
 616     HPAL                            hOldPalette = NULLHANDLE;
 617     if (rImage.GetPalette().Ok())
 618     {
 619         hOldPalette = ::GpiSelectPalette(hPS, (HPAL)rImage.GetPalette().GetHPALETTE());
 620     }
 621 #endif // wxUSE_PALETTE
 622
 623     //
 624     // Copy image data into DIB data and then into DDB (in a loop)
 625     //
 626     unsigned char*                  pData = rImage.GetData();
 627     int                             i;
 628     int                             j;
 629     int                             n;
 630     int                             nOrigin = 0;
 631     unsigned char*                  ptdata = pData;
 632     unsigned char*                  ptbits;
 633
 634     for (n = 0; n < nNumDIB; n++)
 635     {
 636         if (nNumDIB > 1 && n == nNumDIB - 1 && nHRemain > 0)
 637         {
 638             //
 639             // Redefine height and size of the (possibly) last smaller DIB
 640             // memory is not reallocated
 641             //
 642             nHeight         = nHRemain;
 643             vHeader.cy      = (DWORD)(nHeight);
 644             vHeader.cbImage = nBytePerLine * nHeight;
 645         }
 646         ptbits = pucBits;
 647         for (j = 0; j < nHeight; j++)
 648         {
 649             for (i = 0; i < nWidth; i++)
 650             {
 651                 *(ptbits++) = *(ptdata + 2);
 652                 *(ptbits++) = *(ptdata + 1);
 653                 *(ptbits++) = *(ptdata);
 654                 ptdata += 3;
 655             }
 656             for (i = 0; i < nPadding; i++)
 657                 *(ptbits++) = 0;
 658         }
 659
 660         //
 661         // Have to do something similar to WIN32's StretchDIBits, use GpiBitBlt
 662         // in combination with setting the bits into the selected bitmap
 663         //
 664         if ((lScans = ::GpiSetBitmapBits( hPS
 665                                          ,0             // Start at the bottom
 666                                          ,(LONG)nHeight // One line per scan
 667                                          ,(PBYTE)pucBits
 668                                          ,&vInfo
 669                                        )) == GPI_ALTERROR)
 670         {
 671             ERRORID                 vError;
 672             wxString                sError;
 673
 674             vError = ::WinGetLastError(vHabmain);
 675             sError = wxPMErrorToStr(vError);
 676         }
 677
 678         hPSScreen = ::GpiCreatePS( vHabmain
 679                                   ,hDCScreen
 680                                   ,&vSize
 681                                   ,PU_PELS | GPIA_ASSOC
 682                                  );
 683
 684         POINTL                      vPoint[4] = { 0, nOrigin,
 685                                                   nWidth, nHeight,
 686                                                   0, 0, nWidth, nHeight
 687                                                 };
 688
 689
 690         ::GpiBitBlt( hPSScreen
 691                     ,hPS
 692                     ,4
 693                     ,vPoint
 694                     ,ROP_SRCCOPY
 695                     ,BBO_IGNORE
 696                    );
 697         ::GpiDestroyPS(hPSScreen);
 698         nOrigin += nHeight;
 699     }
 700     SetHBITMAP((WXHBITMAP)hBmp);
 701 #if wxUSE_PALETTE
 702     if (hOldPalette)
 703         ::GpiSelectPalette(hPS, hOldPalette);
 704 #endif // wxUSE_PALETTE
 705
 706     //
 707     // Similarly, created an mono-bitmap for the possible mask
 708     //
 709     if (rImage.HasMask())
 710     {
 711         vHeader.cbFix     =  sizeof(BITMAPINFOHEADER2);
 712         vHeader.cx        = nWidth;
 713         vHeader.cy        = nHeight;
 714         vHeader.cPlanes   = 1;
 715         vHeader.cBitCount = 1;
 716         hBmp = ::GpiCreateBitmap( hPS
 717                                  ,&vHeader
 718                                  ,0L
 719                                  ,NULL
 720                                  ,NULL
 721                                 );
 722         hBmpOld = ::GpiSetBitmap(hPS, hBmp);
 723         if (nNumDIB == 1)
 724             nHeight = nBmpHeight;
 725         else
 726             nHeight = nSizeLimit / nBytePerLine;
 727         vHeader.cy = (DWORD)(nHeight);
 728         vHeader.cbImage = nBytePerLine * nHeight;
 729         nOrigin = 0;
 730
 731         unsigned char               cRed   = rImage.GetMaskRed();
 732         unsigned char               cGreen = rImage.GetMaskGreen();
 733         unsigned char               cBlue  = rImage.GetMaskBlue();
 734         unsigned char               cZero = 0;
 735         unsigned char               cOne = 255;
 736
 737         ptdata = pData;
 738         for (n = 0; n < nNumDIB; n++)
 739         {
 740             if (nNumDIB > 1 && n == nNumDIB - 1 && nHRemain > 0)
 741             {
 742                 //
 743                 // Redefine height and size of the (possibly) last smaller DIB
 744                 // memory is not reallocated
 745                 //
 746                 nHeight         = nHRemain;
 747                 vHeader.cy      = (DWORD)(nHeight);
 748                 vHeader.cbImage = nBytePerLine * nHeight;
 749             }
 750             ptbits = pucBits;
 751             for (int j = 0; j < nHeight; j++)
 752             {
 753                 for (i = 0; i < nWidth; i++)
 754                 {
 755                     if ((*(ptdata++) != cRed) || (*(ptdata++) != cGreen) || (*(ptdata++) != cBlue))
 756                     {
 757                         *(ptbits++) = cOne;
 758                         *(ptbits++) = cOne;
 759                         *(ptbits++) = cOne;
 760                     }
 761                     else
 762                     {
 763                         *(ptbits++) = cZero;
 764                         *(ptbits++) = cZero;
 765                         *(ptbits++) = cZero;
 766                     }
 767                 }
 768                 for (i = 0; i < nPadding; i++)
 769                     *(ptbits++) = cZero;
 770             }
 771             lScans = ::GpiSetBitmapBits( hPS
 772                                         ,0              // Start at the bottom
 773                                         ,(LONG)nHeight // One line per scan
 774                                         ,(PBYTE)pucBits
 775                                         ,&vInfo
 776                                        );
 777             hPSScreen = ::GpiCreatePS( vHabmain
 778                                       ,hDCScreen
 779                                       ,&vSize
 780                                       ,PU_PELS | GPIA_ASSOC
 781                                      );
 782             POINTL vPoint2[4] = { 0, nOrigin,
 783                                   nWidth, nHeight,
 784                                   0, 0, nWidth, nHeight
 785                                 };
 786             ::GpiBitBlt( hPSScreen
 787                         ,hPS
 788                         ,4
 789                         ,vPoint2
 790                         ,ROP_SRCCOPY
 791                         ,BBO_IGNORE
 792                    );
 793             ::GpiDestroyPS(hPSScreen);
 794             nOrigin += nHeight;
 795         }
 796
 797         //
 798         // Create a wxMask object
 799         //
 800         wxMask*                     pMask = new wxMask();
 801
 802         pMask->SetMaskBitmap((WXHBITMAP)hBmp);
 803         SetMask(pMask);
 804         hBmpOld = ::GpiSetBitmap(hPS, hBmp);
 805     }
 806
 807     //
 808     // Free allocated resources
 809     //
 810     ::GpiSetBitmap(hPS, NULLHANDLE);
 811     ::GpiDestroyPS(hPS);
 812     ::DevCloseDC(hDC);
 813     free(pucBits);
 814     return TRUE;
 815 } // end of wxBitmap::CreateFromImage
 816
 817 wxImage wxBitmap::ConvertToImage() const
 818 {
 819     wxImage                         vImage;
 820
 821     wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") );
 822
 823     //
 824     // Create an wxImage object
 825     //
 826     int                             nWidth        = GetWidth();
 827     int                             nHeight       = GetHeight();
 828     int                             nDevWidth;
 829     int                             nDevHeight;
 830     int                             nBytePerLine  = nWidth * 3;
 831     int                             nSizeDWORD    = sizeof(DWORD);
 832     int                             nLineBoundary = nBytePerLine % nSizeDWORD;
 833     int                             nPadding = 0;
 834     unsigned char*                  pData;
 835     unsigned char*                  lpBits;
 836     long                            lScans;
 837     BITMAPINFOHEADER2               vDIBh;
 838     BITMAPINFO2                     vDIBInfo;
 839     HDC                             hDCMem;
 840     PSZ                             pszData[4] = { "Display", NULL, NULL, NULL };
 841     HPS                             hPSMem;
 842     HPS                             hPS;
 843     SIZEL                           vSizlPage = {0,0};
 844     HBITMAP                         hBitmap;
 845
 846     vImage.Create( nWidth
 847                   ,nHeight
 848                  );
 849     pData = vImage.GetData();
 850     if(!pData)
 851     {
 852         wxFAIL_MSG( wxT("could not allocate data for image") );
 853         return wxNullImage;
 854     }
 855     if(nLineBoundary > 0)
 856     {
 857         nPadding     = nSizeDWORD - nLineBoundary;
 858         nBytePerLine += nPadding;
 859     }
 860     wxDisplaySize( &nDevWidth
 861                   ,&nDevHeight
 862                  );
 863     //
 864     // Create and fill a DIB header
 865     //
 866     memset(&vDIBh, '\0', 16);
 867     vDIBh.cbFix     =  16;
 868     vDIBh.cx        = nWidth;
 869     vDIBh.cy        = nHeight;
 870     vDIBh.cPlanes   = 1;
 871     vDIBh.cBitCount = 24;
 872
 873     memset(&vDIBInfo, '\0', 16);
 874     vDIBInfo.cbFix           = 16;
 875     vDIBInfo.cx              = nWidth;
 876     vDIBInfo.cy              = nHeight;
 877     vDIBInfo.cPlanes         = 1;
 878     vDIBInfo.cBitCount       = 24;
 879
 880     lpBits = (unsigned char *)malloc(nBytePerLine * nHeight);
 881     if (!lpBits)
 882     {
 883         wxFAIL_MSG(wxT("could not allocate data for DIB"));
 884         free(pData);
 885         return wxNullImage;
 886     }
 887
 888     //
 889     // Copy data from the device-dependent bitmap to the DIB
 890     //
 891     hDCMem = ::DevOpenDC( vHabmain
 892                          ,OD_MEMORY
 893                          ,"*"
 894                          ,4
 895                          ,(PDEVOPENDATA)pszData
 896                          ,NULLHANDLE
 897                         );
 898     hPSMem = ::GpiCreatePS( vHabmain
 899                            ,hDCMem
 900                            ,&vSizlPage
 901                            ,PU_PELS | GPIA_ASSOC | GPIT_MICRO
 902                           );
 903     hBitmap = ::GpiCreateBitmap( hPSMem
 904                                 ,&vDIBh
 905                                 ,0L
 906                                 ,NULL
 907                                 ,NULL
 908                                );
 909     ::GpiSetBitmap(hPSMem, hBitmap);
 910     lScans = ::GpiQueryBitmapBits( hPSMem
 911                                   ,0L
 912                                   ,(LONG)nHeight
 913                                   ,(PBYTE)lpBits
 914                                   ,&vDIBInfo
 915                                  );
 916
 917     //
 918     // Copy DIB data into the wxImage object
 919     //
 920     int                             i;
 921     int                             j;
 922     unsigned char*                  ptdata = pData;
 923     unsigned char*                  ptbits = lpBits;
 924
 925     for (i = 0; i < nHeight; i++)
 926     {
 927         for (j = 0; j < nWidth; j++)
 928         {
 929             *(ptdata++) = *(ptbits+2);
 930             *(ptdata++) = *(ptbits+1);
 931             *(ptdata++) = *(ptbits  );
 932             ptbits += 3;
 933         }
 934         ptbits += nPadding;
 935     }
 936     ::GpiSetBitmap(hPSMem, NULLHANDLE);
 937
 938     //
 939     // Similarly, set data according to the possible mask bitmap
 940     //
 941     if (GetMask() && GetMask()->GetMaskBitmap())
 942     {
 943         hBitmap = (HBITMAP)GetMask()->GetMaskBitmap();
 944
 945         //
 946         // Memory DC/PS created, color set, data copied, and memory DC/PS deleted
 947         //
 948         HDC                         hMemDC = ::DevOpenDC( vHabmain
 949                                                          ,OD_MEMORY
 950                                                          ,"*"
 951                                                          ,4
 952                                                          ,(PDEVOPENDATA)pszData
 953                                                          ,NULLHANDLE
 954                                                         );
 955         HPS                         hMemPS = ::GpiCreatePS( vHabmain
 956                                                            ,hMemDC
 957                                                            ,&vSizlPage
 958                                                            ,PU_PELS | GPIA_ASSOC | GPIT_MICRO
 959                                                           );
 960         ::GpiSetColor(hMemPS, OS2RGB(0, 0, 0));
 961         ::GpiSetBackColor(hMemPS, OS2RGB(255, 255, 255) );
 962         ::GpiSetBitmap(hMemPS, hBitmap);
 963         ::GpiQueryBitmapBits( hPSMem
 964                              ,0L
 965                              ,(LONG)nHeight
 966                              ,(PBYTE)lpBits
 967                              ,&vDIBInfo
 968                             );
 969         ::GpiSetBitmap(hMemPS, NULLHANDLE);
 970         ::GpiDestroyPS(hMemPS);
 971         ::DevCloseDC(hMemDC);
 972
 973         //
 974         // Background color set to RGB(16,16,16) in consistent with wxGTK
 975         //
 976         unsigned char               ucRed = 16;
 977         unsigned char               ucGreen = 16;
 978         unsigned char               ucBlue = 16;
 979
 980         ptdata = pData;
 981         ptbits = lpBits;
 982         for (i = 0; i < nHeight; i++)
 983         {
 984             for (j = 0; j < nWidth; j++)
 985             {
 986                 if (*ptbits != 0)
 987                     ptdata += 3;
 988                 else
 989                 {
 990                     *(ptdata++)  = ucRed;
 991                     *(ptdata++)  = ucGreen;
 992                     *(ptdata++)  = ucBlue;
 993                 }
 994                 ptbits += 3;
 995             }
 996             ptbits += nPadding;
 997         }
 998         vImage.SetMaskColour( ucRed
 999                              ,ucGreen
1000                              ,ucBlue
1001                             );
1002         vImage.SetMask(TRUE);
1003     }
1004     else
1005     {
1006         vImage.SetMask(FALSE);
1007     }
1008
1009     //
1010     // Free allocated resources
1011     //
1012     ::GpiDestroyPS(hPSMem);
1013     ::DevCloseDC(hDCMem);
1014     free(lpBits);
1015     return vImage;
1016 } // end of wxBitmap::ConvertToImage
1017
1018 // ----------------------------------------------------------------------------
1019 // sub bitmap extraction
1020 // ----------------------------------------------------------------------------
1021
1022 wxBitmap wxBitmap::GetSubBitmap(
1023   const wxRect&                     rRect
1024 ) const
1025 {
1026     wxCHECK_MSG( Ok() &&
1027                  (rRect.x >= 0) && (rRect.y >= 0) &&
1028                  (rRect.x + rRect.width <= GetWidth()) &&
1029                  (rRect.y + rRect.height <= GetHeight()),
1030                  wxNullBitmap, wxT("Invalid bitmap or bitmap region") );
1031
1032     wxBitmap                        vRet( rRect.width
1033                                          ,rRect.height
1034                                          ,GetDepth()
1035                                         );
1036     wxASSERT_MSG( vRet.Ok(), wxT("GetSubBitmap error") );
1037
1038
1039     //
1040     // Copy bitmap data
1041     //
1042     SIZEL                           vSize = {0, 0};
1043     DEVOPENSTRUC                    vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L};
1044     HDC                             hDCSrc = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE);
1045     HDC                             hDCDst = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE);
1046     HPS                             hPSSrc = ::GpiCreatePS(vHabmain, hDCSrc, &vSize, PU_PELS | GPIA_ASSOC);
1047     HPS                             hPSDst = ::GpiCreatePS(vHabmain, hDCDst, &vSize, PU_PELS | GPIA_ASSOC);
1048     POINTL                          vPoint[4] = { 0, 0, rRect.width, rRect.height,
1049                                                   rRect.x, rRect.y,
1050                                                   rRect.x + rRect.width, rRect.y + rRect.height
1051                                                 };
1052
1053     ::GpiSetBitmap(hPSSrc, (HBITMAP) GetHBITMAP());
1054     ::GpiSetBitmap(hPSDst, (HBITMAP) vRet.GetHBITMAP());
1055     ::GpiBitBlt( hPSDst
1056                 ,hPSSrc
1057                 ,4L
1058                 ,vPoint
1059                 ,ROP_SRCCOPY
1060                 ,BBO_IGNORE
1061                );
1062
1063     //
1064     // Copy mask if there is one
1065     //
1066     if (GetMask())
1067     {
1068         BITMAPINFOHEADER2           vBmih;
1069
1070         memset(&vBmih, '\0', sizeof(BITMAPINFOHEADER2));
1071         vBmih.cbFix     = sizeof(BITMAPINFOHEADER2);
1072         vBmih.cx        = rRect.width;
1073         vBmih.cy        = rRect.height;
1074         vBmih.cPlanes   = 1;
1075         vBmih.cBitCount = 1;
1076
1077         HBITMAP                     hBmpMask = ::GpiCreateBitmap( hPSDst
1078                                                                  ,&vBmih
1079                                                                  ,0L
1080                                                                  ,NULL
1081                                                                  ,NULL
1082                                                                 );
1083
1084         ::GpiSetBitmap(hPSSrc, (HBITMAP) GetHBITMAP());
1085         ::GpiSetBitmap(hPSDst, (HBITMAP) vRet.GetHBITMAP());
1086
1087         ::GpiSetBitmap(hPSSrc, (HBITMAP) GetMask()->GetMaskBitmap());
1088         ::GpiSetBitmap(hPSDst, (HBITMAP) hBmpMask);
1089         ::GpiBitBlt( hPSDst
1090                     ,hPSSrc
1091                     ,4L
1092                     ,vPoint
1093                     ,ROP_SRCCOPY
1094                     ,BBO_IGNORE
1095                    );
1096
1097         wxMask*                     pMask = new wxMask((WXHBITMAP)hBmpMask);
1098         vRet.SetMask(pMask);
1099     }
1100
1101     ::GpiSetBitmap(hPSSrc, NULL);
1102     ::GpiSetBitmap(hPSDst, NULL);
1103     ::GpiDestroyPS(hPSSrc);
1104     ::GpiDestroyPS(hPSDst);
1105     ::DevCloseDC(hDCSrc);
1106     ::DevCloseDC(hDCDst);
1107     return vRet;
1108 } // end of wxBitmap::GetSubBitmap
1109
1110 // ----------------------------------------------------------------------------
1111 // wxBitmap accessors
1112 // ----------------------------------------------------------------------------
1113
1114 void wxBitmap::SetQuality(
1115   int                               nQ
1116 )
1117 {
1118     EnsureHasData();
1119
1120     GetBitmapData()->m_nQuality = nQ;
1121 } // end of wxBitmap::SetQuality
1122
1123 #if WXWIN_COMPATIBILITY_2
1124 void wxBitmap::SetOk(
1125   bool                              bOk
1126 )
1127 {
1128     EnsureHasData();
1129
1130     GetBitmapData()->m_bOk = bOk;
1131 } // end of wxBitmap::SetOk
1132 #endif // WXWIN_COMPATIBILITY_2
1133
1134 void wxBitmap::SetPalette(
1135   const wxPalette&                  rPalette
1136 )
1137 {
1138     EnsureHasData();
1139
1140     GetBitmapData()->m_vBitmapPalette = rPalette;
1141 } // end of wxBitmap::SetPalette
1142
1143 void wxBitmap::SetMask(
1144   wxMask*                           pMask
1145 )
1146 {
1147     EnsureHasData();
1148
1149     GetBitmapData()->m_pBitmapMask = pMask;
1150 } // end of wxBitmap::SetMask
1151
1152 wxBitmap wxBitmap::GetBitmapForDC(
1153   wxDC&                             rDc
1154 ) const
1155 {
1156     return(*this);
1157 } // end of wxBitmap::GetBitmapForDC
1158
1159 // ----------------------------------------------------------------------------
1160 // wxMask
1161 // ----------------------------------------------------------------------------
1162
1163 wxMask::wxMask()
1164 {
1165     m_hMaskBitmap = 0;
1166 } // end of wxMask::wxMask
1167
1168 // Construct a mask from a bitmap and a colour indicating
1169 // the transparent area
1170 wxMask::wxMask(
1171   const wxBitmap&                   rBitmap
1172 , const wxColour&                   rColour
1173 )
1174 {
1175     m_hMaskBitmap = 0;
1176     Create( rBitmap
1177            ,rColour
1178           );
1179 } // end of wxMask::wxMask
1180
1181 // Construct a mask from a bitmap and a palette index indicating
1182 // the transparent area
1183 wxMask::wxMask(
1184   const wxBitmap&                   rBitmap
1185 , int                               nPaletteIndex
1186 )
1187 {
1188     m_hMaskBitmap = 0;
1189     Create( rBitmap
1190            ,nPaletteIndex
1191           );
1192 } // end of wxMask::wxMask
1193
1194 // Construct a mask from a mono bitmap (copies the bitmap).
1195 wxMask::wxMask(
1196   const wxBitmap&                   rBitmap
1197 )
1198 {
1199     m_hMaskBitmap = 0;
1200     Create(rBitmap);
1201 } // end of wxMask::wxMask
1202
1203 wxMask::~wxMask()
1204 {
1205     if (m_hMaskBitmap)
1206         ::GpiDeleteBitmap((HBITMAP)m_hMaskBitmap);
1207 } // end of wxMask::~wxMask
1208
1209 // Create a mask from a mono bitmap (copies the bitmap).
1210 bool wxMask::Create(
1211   const wxBitmap&                   rBitmap
1212 )
1213 {
1214     BITMAPINFOHEADER2               vBmih;
1215     SIZEL                           vSize = {0, 0};
1216     DEVOPENSTRUC                    vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L};
1217     HDC                             hDCSrc = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE);
1218     HDC                             hDCDst = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE);
1219     HPS                             hPSSrc = ::GpiCreatePS(vHabmain, hDCSrc, &vSize, PU_PELS | GPIA_ASSOC);
1220     HPS                             hPSDst = ::GpiCreatePS(vHabmain, hDCDst, &vSize, PU_PELS | GPIA_ASSOC);
1221     POINTL                          vPoint[4] = { 0 ,0, rBitmap.GetWidth(), rBitmap.GetHeight(),
1222                                                   0, 0, rBitmap.GetWidth(), rBitmap.GetHeight()
1223                                                 };
1224
1225     if (m_hMaskBitmap)
1226     {
1227         ::GpiDeleteBitmap((HBITMAP) m_hMaskBitmap);
1228         m_hMaskBitmap = 0;
1229     }
1230     if (!rBitmap.Ok() || rBitmap.GetDepth() != 1)
1231     {
1232         return(FALSE);
1233     }
1234
1235     memset(&vBmih, '\0', sizeof(BITMAPINFOHEADER2));
1236     vBmih.cbFix     =  sizeof(BITMAPINFOHEADER2);
1237     vBmih.cx        = rBitmap.GetWidth();
1238     vBmih.cy        = rBitmap.GetHeight();
1239     vBmih.cPlanes   = 1;
1240     vBmih.cBitCount = 1;
1241
1242     m_hMaskBitmap = ::GpiCreateBitmap( hPSDst
1243                                       ,&vBmih
1244                                       ,0L
1245                                       ,NULL
1246                                       ,NULL
1247                                      );
1248
1249     ::GpiSetBitmap(hPSSrc, (HBITMAP) rBitmap.GetHBITMAP());
1250     ::GpiSetBitmap(hPSDst, (HBITMAP) m_hMaskBitmap);
1251     ::GpiBitBlt( hPSDst
1252                 ,hPSSrc
1253                 ,4L
1254                 ,vPoint
1255                 ,ROP_SRCCOPY
1256                 ,BBO_IGNORE
1257                );
1258
1259     ::GpiDestroyPS(hPSSrc);
1260     ::GpiDestroyPS(hPSDst);
1261     ::DevCloseDC(hDCSrc);
1262     ::DevCloseDC(hDCDst);
1263     return(TRUE);
1264 } // end of wxMask::Create
1265
1266 // Create a mask from a bitmap and a palette index indicating
1267 // the transparent area
1268 bool wxMask::Create(
1269   const wxBitmap&                   rBitmap
1270 , int                               nPaletteIndex
1271 )
1272 {
1273     if (m_hMaskBitmap)
1274     {
1275         ::GpiDeleteBitmap((HBITMAP) m_hMaskBitmap);
1276         m_hMaskBitmap = 0;
1277     }
1278     if (rBitmap.Ok() && rBitmap.GetPalette()->Ok())
1279     {
1280         unsigned char               cRed;
1281         unsigned char               cGreen;
1282         unsigned char               cBlue;
1283
1284         if (rBitmap.GetPalette()->GetRGB( nPaletteIndex
1285                                          ,&cRed
1286                                          ,&cGreen
1287                                          ,&cBlue
1288                                         ))
1289         {
1290             wxColour                vTransparentColour( cRed
1291                                                        ,cGreen
1292                                                        ,cBlue
1293                                                       );
1294
1295             return (Create( rBitmap
1296                            ,vTransparentColour
1297                           ));
1298         }
1299     }
1300     return(FALSE);
1301 } // end of wxMask::Create
1302
1303 // Create a mask from a bitmap and a colour indicating
1304 // the transparent area
1305 bool wxMask::Create(
1306   const wxBitmap&                   rBitmap
1307 , const wxColour&                   rColour
1308 )
1309 {
1310     bool                            bOk = TRUE;
1311     COLORREF                        vMaskColour = OS2RGB( rColour.Red()
1312                                                          ,rColour.Green()
1313                                                          ,rColour.Blue()
1314                                                         );
1315     BITMAPINFOHEADER2               vBmih;
1316     SIZEL                           vSize = {0, 0};
1317     DEVOPENSTRUC                    vDop = { NULL, "DISPLAY", NULL, NULL, NULL, NULL, NULL, NULL, NULL };
1318     HDC                             hDCSrc = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE);
1319     HDC                             hDCDst = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE);
1320     HPS                             hPSSrc = ::GpiCreatePS(vHabmain, hDCSrc, &vSize, PU_PELS | GPIA_ASSOC);
1321     HPS                             hPSDst = ::GpiCreatePS(vHabmain, hDCDst, &vSize, PU_PELS | GPIA_ASSOC);
1322     POINTL                          vPoint[4] = { 0 ,0, rBitmap.GetWidth(), rBitmap.GetHeight(),
1323                                                   0, 0, rBitmap.GetWidth(), rBitmap.GetHeight()
1324                                                 };
1325
1326     if (m_hMaskBitmap)
1327     {
1328         ::GpiDeleteBitmap((HBITMAP) m_hMaskBitmap);
1329         m_hMaskBitmap = 0;
1330     }
1331     if (!rBitmap.Ok())
1332     {
1333         return(FALSE);
1334     }
1335
1336     //
1337     // Scan the bitmap for the transparent colour and set
1338     // the corresponding pixels in the mask to BLACK and
1339     // the rest to WHITE
1340     //
1341
1342     memset(&vBmih, '\0', sizeof(BITMAPINFOHEADER2));
1343     vBmih.cbFix     =  sizeof(BITMAPINFOHEADER2);
1344     vBmih.cx        = rBitmap.GetWidth();
1345     vBmih.cy        = rBitmap.GetHeight();
1346     vBmih.cPlanes   = 1;
1347     vBmih.cBitCount = 1;
1348
1349     m_hMaskBitmap = ::GpiCreateBitmap( hPSDst
1350                                       ,&vBmih
1351                                       ,0L
1352                                       ,NULL
1353                                       ,NULL
1354                                      );
1355
1356     ::GpiSetBitmap(hPSSrc, (HBITMAP) rBitmap.GetHBITMAP());
1357     ::GpiSetBitmap(hPSDst, (HBITMAP) m_hMaskBitmap);
1358
1359     //
1360     // This is not very efficient, but I can't think
1361     // of a better way of doing it
1362     //
1363     for (int w = 0; w < rBitmap.GetWidth(); w++)
1364     {
1365         for (int h = 0; h < rBitmap.GetHeight(); h++)
1366         {
1367             POINTL                  vPt = {w, h};
1368             COLORREF                vCol = (COLORREF)::GpiQueryPel(hPSSrc, &vPt);
1369             if (vCol == (COLORREF)CLR_NOINDEX)
1370             {
1371                 //
1372                 // Doesn't make sense to continue
1373                 //
1374                 bOk = FALSE;
1375                 break;
1376             }
1377
1378             if (vCol == vMaskColour)
1379             {
1380                 ::GpiSetColor(hPSDst, OS2RGB(0, 0, 0));
1381                 ::GpiSetPel(hPSDst, &vPt);
1382             }
1383             else
1384             {
1385                 ::GpiSetColor(hPSDst, OS2RGB(255, 255, 255));
1386                 ::GpiSetPel(hPSDst, &vPt);
1387             }
1388         }
1389     }
1390     ::GpiSetBitmap(hPSSrc, NULL);
1391     ::GpiSetBitmap(hPSDst, NULL);
1392     ::GpiDestroyPS(hPSSrc);
1393     ::GpiDestroyPS(hPSDst);
1394     ::DevCloseDC(hDCSrc);
1395     ::DevCloseDC(hDCDst);
1396     return(TRUE);
1397 } // end of wxMask::Create
1398
1399 // ----------------------------------------------------------------------------
1400 // wxBitmapHandler
1401 // ----------------------------------------------------------------------------
1402
1403 bool wxBitmapHandler::Create(
1404   wxGDIImage*                       pImage
1405 , void*                             pData
1406 , long                              lFlags
1407 , int                               nWidth
1408 , int                               nHeight
1409 , int                               nDepth
1410 )
1411 {
1412     wxBitmap*                       pBitmap = wxDynamicCast( pImage
1413                                                             ,wxBitmap
1414                                                            );
1415
1416     return(pBitmap ? Create( pBitmap
1417                             ,pData
1418                             ,nWidth
1419                             ,nHeight
1420                             ,nDepth
1421                            ) : FALSE);
1422 }
1423
1424 bool wxBitmapHandler::Load(
1425   wxGDIImage*                       pImage
1426 , const wxString&                   rName
1427 , HPS                               hPs
1428 , long                              lFlags
1429 , int                               nWidth
1430 , int                               nHeight
1431 )
1432 {
1433     wxBitmap*                       pBitmap = wxDynamicCast( pImage
1434                                                             ,wxBitmap
1435                                                            );
1436
1437     return(pBitmap ? LoadFile( pBitmap
1438                               ,rName
1439                               ,hPs
1440                               ,lFlags
1441                               ,nWidth
1442                               ,nHeight
1443                              ) : FALSE);
1444 }
1445
1446 bool wxBitmapHandler::Save(
1447   wxGDIImage*                       pImage
1448 , const wxString&                   rName
1449 , int                               lType
1450 )
1451 {
1452     wxBitmap*                       pBitmap = wxDynamicCast( pImage
1453                                                             ,wxBitmap
1454                                                            );
1455
1456     return(pBitmap ? SaveFile( pBitmap
1457                               ,rName
1458                               ,lType
1459                              ) : FALSE);
1460 }
1461
1462 bool wxBitmapHandler::Create(
1463   wxBitmap*                         WXUNUSED(pBitmap)
1464 , void*                             WXUNUSED(pData)
1465 , long                              WXUNUSED(lType)
1466 , int                               WXUNUSED(nWidth)
1467 , int                               WXUNUSED(nHeight)
1468 , int                               WXUNUSED(nDepth)
1469 )
1470 {
1471     return(FALSE);
1472 }
1473
1474 bool wxBitmapHandler::LoadFile(
1475   wxBitmap*                         WXUNUSED(pBitmap)
1476 , const wxString&                   WXUNUSED(rName)
1477 , HPS                               WXUNUSED(hPs)
1478 , long                              WXUNUSED(lType)
1479 , int                               WXUNUSED(nDesiredWidth)
1480 , int                               WXUNUSED(nDesiredHeight)
1481 )
1482 {
1483     return(FALSE);
1484 }
1485
1486 bool wxBitmapHandler::SaveFile(
1487   wxBitmap*                         WXUNUSED(pBitmap)
1488 , const wxString&                   WXUNUSED(rName)
1489 , int                               WXUNUSED(nType)
1490 , const wxPalette*                  WXUNUSED(pPalette)
1491 )
1492 {
1493     return(FALSE);
1494 }
1495
1496 // ----------------------------------------------------------------------------
1497 // Utility functions
1498 // ----------------------------------------------------------------------------
1499 HBITMAP wxInvertMask(
1500   HBITMAP                           hBmpMask
1501 , int                               nWidth
1502 , int                               nHeight
1503 )
1504 {
1505     HBITMAP                         hBmpInvMask = 0;
1506
1507     wxCHECK_MSG( hBmpMask, 0, _T("invalid bitmap in wxInvertMask") );
1508
1509     //
1510     // Get width/height from the bitmap if not given
1511     //
1512     if (!nWidth || !nHeight)
1513     {
1514         BITMAPINFOHEADER2           vBmhdr;
1515
1516         ::GpiQueryBitmapInfoHeader( hBmpMask
1517                                    ,&vBmhdr
1518                                   );
1519         nWidth  = (int)vBmhdr.cx;
1520         nHeight = (int)vBmhdr.cy;
1521     }
1522
1523     BITMAPINFOHEADER2               vBmih;
1524     SIZEL                           vSize = {0, 0};
1525     DEVOPENSTRUC                    vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L};
1526     HDC                             hDCSrc = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE);
1527     HDC                             hDCDst = ::DevOpenDC(vHabmain, OD_MEMORY, "*", 5L, (PDEVOPENDATA)&vDop, NULLHANDLE);
1528     HPS                             hPSSrc = ::GpiCreatePS(vHabmain, hDCSrc, &vSize, PU_PELS | GPIA_ASSOC);
1529     HPS                             hPSDst = ::GpiCreatePS(vHabmain, hDCDst, &vSize, PU_PELS | GPIA_ASSOC);
1530     POINTL                          vPoint[4] = { 0 ,0, nWidth, nHeight,
1531                                                   0, 0, nWidth, nHeight
1532                                                 };
1533
1534     memset(&vBmih, '\0', sizeof(BITMAPINFOHEADER2));
1535     vBmih.cbFix     =  sizeof(BITMAPINFOHEADER2);
1536     vBmih.cx        = nWidth;
1537     vBmih.cy        = nHeight;
1538     vBmih.cPlanes   = 1;
1539     vBmih.cBitCount = 1;
1540
1541     hBmpInvMask = ::GpiCreateBitmap( hPSDst
1542                                     ,&vBmih
1543                                     ,0L
1544                                     ,NULL
1545                                     ,NULL
1546                                    );
1547
1548     ::GpiSetBitmap(hPSSrc, (HBITMAP) hBmpMask);
1549     ::GpiSetBitmap(hPSDst, (HBITMAP) hBmpInvMask);
1550
1551     ::GpiBitBlt( hPSDst
1552                 ,hPSSrc
1553                 ,4L
1554                 ,vPoint
1555                 ,ROP_SRCINVERT
1556                 ,BBO_IGNORE
1557                );
1558
1559     ::GpiDestroyPS(hPSSrc);
1560     ::GpiDestroyPS(hPSDst);
1561     ::DevCloseDC(hDCSrc);
1562     ::DevCloseDC(hDCDst);
1563
1564     return hBmpInvMask;
1565 } // end of WxWinGdi_InvertMask
1566