| 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 | } |
| 61 | |
| 62 | void wxBitmapRefData::Free() |
| 63 | { |
| 64 | wxASSERT_MSG( !m_pSelectedInto, |
| 65 | wxT("deleting bitmap still selected into wxMemoryDC") ); |
| 66 | |
| 67 | if (m_hBitmap) |
| 68 | { |
| 69 | if ( !::GpiDeleteBitmap((HBITMAP)m_hBitmap) ) |
| 70 | { |
| 71 | wxLogLastError("GpiDeleteBitmap(hbitmap)"); |
| 72 | } |
| 73 | } |
| 74 | |
| 75 | delete m_pBitmapMask; |
| 76 | m_pBitmapMask = NULL; |
| 77 | } |
| 78 | |
| 79 | // ---------------------------------------------------------------------------- |
| 80 | // wxBitmap creation |
| 81 | // ---------------------------------------------------------------------------- |
| 82 | |
| 83 | // this function should be called from all wxBitmap ctors |
| 84 | void wxBitmap::Init() |
| 85 | { |
| 86 | // m_refData = NULL; done in the base class ctor |
| 87 | |
| 88 | if (wxTheBitmapList) |
| 89 | wxTheBitmapList->AddBitmap(this); |
| 90 | } |
| 91 | |
| 92 | bool wxBitmap::CopyFromIconOrCursor( |
| 93 | const wxGDIImage& rIcon |
| 94 | ) |
| 95 | { |
| 96 | wxBitmapRefData* pRefData = new wxBitmapRefData; |
| 97 | |
| 98 | m_refData = pRefData; |
| 99 | |
| 100 | pRefData->m_nWidth = rIcon.GetWidth(); |
| 101 | pRefData->m_nHeight = rIcon.GetHeight(); |
| 102 | pRefData->m_nDepth = wxDisplayDepth(); |
| 103 | |
| 104 | pRefData->m_hBitmap = (WXHBITMAP)rIcon.GetHandle(); |
| 105 | // no mask??? |
| 106 | pRefData->m_pBitmapMask = new wxMask(); |
| 107 | |
| 108 | #if WXWIN_COMPATIBILITY_2 |
| 109 | pRefData->m_bOk = TRUE; |
| 110 | #endif // WXWIN_COMPATIBILITY_2 |
| 111 | return(TRUE); |
| 112 | } |
| 113 | |
| 114 | bool wxBitmap::CopyFromCursor( |
| 115 | const wxCursor& rCursor |
| 116 | ) |
| 117 | { |
| 118 | UnRef(); |
| 119 | |
| 120 | if (!rCursor.Ok()) |
| 121 | return(FALSE); |
| 122 | return(CopyFromIconOrCursor(rCursor)); |
| 123 | } |
| 124 | |
| 125 | bool wxBitmap::CopyFromIcon( |
| 126 | const wxIcon& rIcon |
| 127 | ) |
| 128 | { |
| 129 | UnRef(); |
| 130 | |
| 131 | if (!rIcon.Ok()) |
| 132 | return(FALSE); |
| 133 | |
| 134 | return CopyFromIconOrCursor(rIcon); |
| 135 | } |
| 136 | |
| 137 | wxBitmap::~wxBitmap() |
| 138 | { |
| 139 | if (wxTheBitmapList) |
| 140 | wxTheBitmapList->DeleteObject(this); |
| 141 | } |
| 142 | |
| 143 | wxBitmap::wxBitmap( |
| 144 | const char zBits[] |
| 145 | , int nTheWidth |
| 146 | , int nTheHeight |
| 147 | , int nNoBits |
| 148 | ) |
| 149 | { |
| 150 | Init(); |
| 151 | |
| 152 | wxBitmapRefData* pRefData = new wxBitmapRefData; |
| 153 | BITMAPINFOHEADER2 vHeader; |
| 154 | BITMAPINFO2 vInfo; |
| 155 | HDC hDc; |
| 156 | HPS hPs; |
| 157 | DEVOPENSTRUC vDop = { NULL, "DISPLAY", NULL, NULL, NULL, NULL, NULL, NULL, NULL }; |
| 158 | SIZEL vSize = {0, 0}; |
| 159 | |
| 160 | wxASSERT(vHabmain != NULL); |
| 161 | |
| 162 | hDc = ::DevOpenDC(vHabmain, OD_MEMORY, (PSZ)"*", 1L, (PDEVOPENDATA)&vDop, 0L); |
| 163 | |
| 164 | vHeader.cbFix = sizeof(vHeader); |
| 165 | vHeader.cx = (USHORT)nTheWidth; |
| 166 | vHeader.cy = (USHORT)nTheHeight; |
| 167 | vHeader.cPlanes = 1L; |
| 168 | vHeader.cBitCount = nNoBits; |
| 169 | vHeader.ulCompression = BCA_UNCOMP; |
| 170 | vHeader.cxResolution = 0; |
| 171 | vHeader.cyResolution = 0; |
| 172 | vHeader.cclrUsed = 0; |
| 173 | vHeader.cclrImportant = 0; |
| 174 | vHeader.usUnits = BRU_METRIC; |
| 175 | vHeader.usRecording = BRA_BOTTOMUP; |
| 176 | vHeader.usRendering = BRH_NOTHALFTONED; |
| 177 | vHeader.cSize1 = 0; |
| 178 | vHeader.cSize2 = 0; |
| 179 | vHeader.ulColorEncoding = 0; |
| 180 | vHeader.ulIdentifier = 0; |
| 181 | |
| 182 | hPs = ::GpiCreatePS(vHabmain, hDc, &vSize, GPIA_ASSOC | PU_PELS); |
| 183 | if (hPs == 0) |
| 184 | { |
| 185 | wxLogLastError("GpiCreatePS Failure"); |
| 186 | } |
| 187 | |
| 188 | m_refData = pRefData; |
| 189 | |
| 190 | pRefData->m_nWidth = nTheWidth; |
| 191 | pRefData->m_nHeight = nTheHeight; |
| 192 | pRefData->m_nDepth = nNoBits; |
| 193 | pRefData->m_nNumColors = 0; |
| 194 | pRefData->m_pSelectedInto = NULL; |
| 195 | |
| 196 | HBITMAP hBmp = ::GpiCreateBitmap(hPs, &vHeader, 0L, NULL, &vInfo); |
| 197 | if (!hBmp) |
| 198 | { |
| 199 | wxLogLastError("CreateBitmap"); |
| 200 | } |
| 201 | SetHBITMAP((WXHBITMAP)hBmp); |
| 202 | } |
| 203 | |
| 204 | // Create from XPM data |
| 205 | wxBitmap::wxBitmap( |
| 206 | char** ppData |
| 207 | , wxControl* WXUNUSED(pAnItem)) |
| 208 | { |
| 209 | Init(); |
| 210 | |
| 211 | (void)Create( (void *)ppData |
| 212 | ,wxBITMAP_TYPE_XPM_DATA |
| 213 | ,0 |
| 214 | ,0 |
| 215 | ,0 |
| 216 | ); |
| 217 | } |
| 218 | |
| 219 | wxBitmap::wxBitmap( |
| 220 | int nW |
| 221 | , int nH |
| 222 | , int nD |
| 223 | ) |
| 224 | { |
| 225 | Init(); |
| 226 | |
| 227 | (void)Create( nW |
| 228 | ,nH |
| 229 | ,nD |
| 230 | ); |
| 231 | } |
| 232 | |
| 233 | wxBitmap::wxBitmap( |
| 234 | void* pData |
| 235 | , long lType |
| 236 | , int nWidth |
| 237 | , int nHeight |
| 238 | , int nDepth |
| 239 | ) |
| 240 | { |
| 241 | Init(); |
| 242 | |
| 243 | (void)Create( pData |
| 244 | ,lType |
| 245 | ,nWidth |
| 246 | ,nHeight |
| 247 | ,nDepth |
| 248 | ); |
| 249 | } |
| 250 | |
| 251 | wxBitmap::wxBitmap( |
| 252 | const wxString& rFilename |
| 253 | , long lType |
| 254 | ) |
| 255 | { |
| 256 | Init(); |
| 257 | |
| 258 | LoadFile( rFilename |
| 259 | ,(int)lType |
| 260 | ); |
| 261 | } |
| 262 | |
| 263 | bool wxBitmap::Create( |
| 264 | int nW |
| 265 | , int nH |
| 266 | , int nD |
| 267 | ) |
| 268 | { |
| 269 | HBITMAP hBmp; |
| 270 | BITMAPINFOHEADER2 vHeader; |
| 271 | BITMAPINFO2 vInfo; |
| 272 | HPS hpsScreen; |
| 273 | HDC hdcScreen; |
| 274 | DEVOPENSTRUC vDop = { NULL, "DISPLAY", NULL, NULL, NULL, NULL, NULL, NULL, NULL }; |
| 275 | SIZEL vSize = {0, 0}; |
| 276 | LONG lBitCount; |
| 277 | |
| 278 | wxASSERT(vHabmain != NULL); |
| 279 | |
| 280 | hpsScreen = ::WinGetScreenPS(HWND_DESKTOP); |
| 281 | hdcScreen = ::GpiQueryDevice(hpsScreen); |
| 282 | ::DevQueryCaps(hdcScreen, CAPS_COLOR_BITCOUNT, 1L, &lBitCount); |
| 283 | |
| 284 | vHeader.cbFix = sizeof(vHeader); |
| 285 | vHeader.cx = (USHORT)nW; |
| 286 | vHeader.cy = (USHORT)nH; |
| 287 | vHeader.cPlanes = (USHORT)nD; |
| 288 | vHeader.cBitCount = lBitCount; |
| 289 | vHeader.ulCompression = BCA_UNCOMP; |
| 290 | vHeader.cxResolution = 0; |
| 291 | vHeader.cyResolution = 0; |
| 292 | vHeader.cclrUsed = 0; |
| 293 | vHeader.cclrImportant = 0; |
| 294 | vHeader.usUnits = BRU_METRIC; |
| 295 | vHeader.usRecording = BRA_BOTTOMUP; |
| 296 | vHeader.usRendering = BRH_NOTHALFTONED; |
| 297 | vHeader.cSize1 = 0; |
| 298 | vHeader.cSize2 = 0; |
| 299 | vHeader.ulColorEncoding = 0; |
| 300 | vHeader.ulIdentifier = 0; |
| 301 | |
| 302 | UnRef(); |
| 303 | m_refData = new wxBitmapRefData; |
| 304 | |
| 305 | GetBitmapData()->m_nWidth = nW; |
| 306 | GetBitmapData()->m_nHeight = nH; |
| 307 | GetBitmapData()->m_nDepth = nD; |
| 308 | |
| 309 | if (nD > 0) |
| 310 | { |
| 311 | hBmp = ::GpiCreateBitmap(hpsScreen, &vHeader, 0L, NULL, &vInfo); |
| 312 | if (!hBmp) |
| 313 | { |
| 314 | wxLogLastError("CreateBitmap"); |
| 315 | } |
| 316 | } |
| 317 | else |
| 318 | { |
| 319 | LONG lPlanes; |
| 320 | |
| 321 | ::DevQueryCaps(hdcScreen, CAPS_COLOR_PLANES, 1L, &lPlanes); |
| 322 | hBmp = ::GpiCreateBitmap(hpsScreen, &vHeader, 0L, NULL, &vInfo); |
| 323 | if (!hBmp) |
| 324 | { |
| 325 | wxLogLastError("CreateBitmap"); |
| 326 | } |
| 327 | GetBitmapData()->m_nDepth = wxDisplayDepth(); |
| 328 | } |
| 329 | SetHBITMAP((WXHBITMAP)hBmp); |
| 330 | |
| 331 | #if WXWIN_COMPATIBILITY_2 |
| 332 | GetBitmapData()->m_bOk = hBmp != 0; |
| 333 | #endif // WXWIN_COMPATIBILITY_2 |
| 334 | |
| 335 | return Ok(); |
| 336 | } |
| 337 | |
| 338 | bool wxBitmap::LoadFile( |
| 339 | const wxString& rFilename |
| 340 | , long lType |
| 341 | ) |
| 342 | { |
| 343 | HPS hPs = NULLHANDLE; |
| 344 | |
| 345 | UnRef(); |
| 346 | |
| 347 | wxBitmapHandler* pHandler = wxDynamicCast( FindHandler(lType) |
| 348 | ,wxBitmapHandler |
| 349 | ); |
| 350 | |
| 351 | if (pHandler) |
| 352 | { |
| 353 | m_refData = new wxBitmapRefData; |
| 354 | |
| 355 | return(pHandler->LoadFile( this |
| 356 | ,rFilename |
| 357 | ,hPs |
| 358 | ,lType |
| 359 | , -1 |
| 360 | , -1 |
| 361 | )); |
| 362 | } |
| 363 | else |
| 364 | { |
| 365 | wxImage vImage; |
| 366 | |
| 367 | if (!vImage.LoadFile(rFilename, lType) || !vImage.Ok() ) |
| 368 | return(FALSE); |
| 369 | |
| 370 | *this = vImage.ConvertToBitmap(); |
| 371 | |
| 372 | return(TRUE); |
| 373 | } |
| 374 | } |
| 375 | |
| 376 | bool wxBitmap::Create( |
| 377 | void* pData |
| 378 | , long lType |
| 379 | , int nWidth |
| 380 | , int nHeight |
| 381 | , int nDepth |
| 382 | ) |
| 383 | { |
| 384 | UnRef(); |
| 385 | |
| 386 | wxBitmapHandler* pHandler = wxDynamicCast( FindHandler(lType) |
| 387 | ,wxBitmapHandler |
| 388 | ); |
| 389 | |
| 390 | if (!pHandler) |
| 391 | { |
| 392 | wxLogDebug(wxT("Failed to create bitmap: no bitmap handler for " |
| 393 | "type %d defined."), lType); |
| 394 | |
| 395 | return(FALSE); |
| 396 | } |
| 397 | |
| 398 | m_refData = new wxBitmapRefData; |
| 399 | |
| 400 | return(pHandler->Create( this |
| 401 | ,pData |
| 402 | ,lType |
| 403 | ,nWidth |
| 404 | ,nHeight |
| 405 | ,nDepth |
| 406 | )); |
| 407 | } |
| 408 | |
| 409 | bool wxBitmap::SaveFile( |
| 410 | const wxString& rFilename |
| 411 | , int lType |
| 412 | , const wxPalette* pPalette |
| 413 | ) |
| 414 | { |
| 415 | wxBitmapHandler* pHandler = wxDynamicCast( FindHandler(lType) |
| 416 | ,wxBitmapHandler |
| 417 | ); |
| 418 | |
| 419 | if (pHandler) |
| 420 | { |
| 421 | return pHandler->SaveFile( this |
| 422 | ,rFilename |
| 423 | ,lType |
| 424 | ,pPalette |
| 425 | ); |
| 426 | } |
| 427 | else |
| 428 | { |
| 429 | // FIXME what about palette? shouldn't we use it? |
| 430 | wxImage vImage(*this); |
| 431 | |
| 432 | if (!vImage.Ok()) |
| 433 | return(FALSE); |
| 434 | |
| 435 | return(vImage.SaveFile( rFilename |
| 436 | ,lType |
| 437 | )); |
| 438 | } |
| 439 | } |
| 440 | |
| 441 | // ---------------------------------------------------------------------------- |
| 442 | // wxBitmap accessors |
| 443 | // ---------------------------------------------------------------------------- |
| 444 | |
| 445 | void wxBitmap::SetQuality( |
| 446 | int nQ |
| 447 | ) |
| 448 | { |
| 449 | EnsureHasData(); |
| 450 | |
| 451 | GetBitmapData()->m_nQuality = nQ; |
| 452 | } |
| 453 | |
| 454 | #if WXWIN_COMPATIBILITY_2 |
| 455 | void wxBitmap::SetOk( |
| 456 | bool bOk |
| 457 | ) |
| 458 | { |
| 459 | EnsureHasData(); |
| 460 | |
| 461 | GetBitmapData()->m_bOk = bOk; |
| 462 | } |
| 463 | #endif // WXWIN_COMPATIBILITY_2 |
| 464 | |
| 465 | void wxBitmap::SetPalette( |
| 466 | const wxPalette& rPalette |
| 467 | ) |
| 468 | { |
| 469 | EnsureHasData(); |
| 470 | |
| 471 | GetBitmapData()->m_vBitmapPalette = rPalette; |
| 472 | } |
| 473 | |
| 474 | void wxBitmap::SetMask( |
| 475 | wxMask* pMask |
| 476 | ) |
| 477 | { |
| 478 | EnsureHasData(); |
| 479 | |
| 480 | GetBitmapData()->m_pBitmapMask = pMask; |
| 481 | } |
| 482 | |
| 483 | // Will try something for OS/2 but not really sure how close |
| 484 | // to the msw intent this is. |
| 485 | wxBitmap wxBitmap::GetBitmapForDC( |
| 486 | wxDC& rDc |
| 487 | ) const |
| 488 | { |
| 489 | wxMemoryDC vMemDC; |
| 490 | wxBitmap vTmpBitmap( this->GetWidth() |
| 491 | ,this->GetHeight() |
| 492 | ,rDc.GetDepth() |
| 493 | ); |
| 494 | WXHBITMAP vOldBitmap; |
| 495 | HPS hMemoryPS; |
| 496 | HPS hPs; |
| 497 | POINTL vPoint[4]; |
| 498 | SIZEL vSize = {0,0}; |
| 499 | |
| 500 | hMemoryPS = ::GpiCreatePS(vHabmain, (HDC)vMemDC.GetHDC(), &vSize, PU_PELS | GPIT_MICRO | GPIA_ASSOC); |
| 501 | hPs = ::GpiCreatePS(vHabmain, (HDC)rDc.GetHDC(), &vSize, PU_PELS | GPIT_MICRO | GPIA_ASSOC); |
| 502 | |
| 503 | // TODO: Set the points |
| 504 | |
| 505 | vOldBitmap = (WXHBITMAP)::GpiSetBitmap(hPs, (HBITMAP)vTmpBitmap.GetHBITMAP()); |
| 506 | ::GpiBitBlt(hPs, hMemoryPS, 4L, vPoint, ROP_SRCCOPY, BBO_IGNORE); |
| 507 | |
| 508 | return(vTmpBitmap); |
| 509 | } |
| 510 | |
| 511 | // ---------------------------------------------------------------------------- |
| 512 | // wxMask |
| 513 | // ---------------------------------------------------------------------------- |
| 514 | |
| 515 | wxMask::wxMask() |
| 516 | { |
| 517 | m_hMaskBitmap = 0; |
| 518 | } |
| 519 | |
| 520 | // Construct a mask from a bitmap and a colour indicating |
| 521 | // the transparent area |
| 522 | wxMask::wxMask( |
| 523 | const wxBitmap& rBitmap |
| 524 | , const wxColour& rColour |
| 525 | ) |
| 526 | { |
| 527 | m_hMaskBitmap = 0; |
| 528 | Create( rBitmap |
| 529 | ,rColour |
| 530 | ); |
| 531 | } |
| 532 | |
| 533 | // Construct a mask from a bitmap and a palette index indicating |
| 534 | // the transparent area |
| 535 | wxMask::wxMask( |
| 536 | const wxBitmap& rBitmap |
| 537 | , int nPaletteIndex |
| 538 | ) |
| 539 | { |
| 540 | m_hMaskBitmap = 0; |
| 541 | Create( rBitmap |
| 542 | ,nPaletteIndex |
| 543 | ); |
| 544 | } |
| 545 | |
| 546 | // Construct a mask from a mono bitmap (copies the bitmap). |
| 547 | wxMask::wxMask( |
| 548 | const wxBitmap& rBitmap |
| 549 | ) |
| 550 | { |
| 551 | m_hMaskBitmap = 0; |
| 552 | Create(rBitmap); |
| 553 | } |
| 554 | |
| 555 | wxMask::~wxMask() |
| 556 | { |
| 557 | if (m_hMaskBitmap) |
| 558 | ::GpiDeleteBitmap((HBITMAP)m_hMaskBitmap); |
| 559 | } |
| 560 | |
| 561 | // Create a mask from a mono bitmap (copies the bitmap). |
| 562 | bool wxMask::Create( |
| 563 | const wxBitmap& rBitmap |
| 564 | ) |
| 565 | { |
| 566 | BITMAPINFOHEADER2 vHeader; |
| 567 | DEVOPENSTRUC vDop = { NULL, "DISPLAY", NULL, NULL, NULL, NULL, NULL, NULL, NULL }; |
| 568 | SIZEL vSize = {0, 0}; |
| 569 | POINTL vPoint[4]; |
| 570 | |
| 571 | if (m_hMaskBitmap) |
| 572 | { |
| 573 | ::GpiDeleteBitmap((HBITMAP) m_hMaskBitmap); |
| 574 | m_hMaskBitmap = 0; |
| 575 | } |
| 576 | if (!rBitmap.Ok() || rBitmap.GetDepth() != 1) |
| 577 | { |
| 578 | return(FALSE); |
| 579 | } |
| 580 | vHeader.cbFix = sizeof(vHeader); |
| 581 | vHeader.cx = (USHORT)rBitmap.GetWidth(); |
| 582 | vHeader.cy = (USHORT)rBitmap.GetHeight(); |
| 583 | vHeader.cPlanes = 1; |
| 584 | vHeader.cBitCount = 1; |
| 585 | |
| 586 | m_hMaskBitmap = (WXHBITMAP) ::GpiCreateBitmap( m_hPs |
| 587 | ,&vHeader |
| 588 | ,0L |
| 589 | ,NULL |
| 590 | ,NULL |
| 591 | ); |
| 592 | |
| 593 | HPS srcPS = ::GpiCreatePS(vHabmain, m_hDc, &vSize, PU_PELS | GPIT_MICRO | GPIA_ASSOC); |
| 594 | ::GpiSetBitmap(srcPS, (HBITMAP)rBitmap.GetHBITMAP()); |
| 595 | HPS destPS = ::GpiCreatePS(vHabmain, m_hDc, &vSize, PU_PELS | GPIT_MICRO | GPIA_ASSOC); |
| 596 | ::GpiSetBitmap(srcPS, (HBITMAP)m_hMaskBitmap); |
| 597 | // TODO: Set the point array |
| 598 | ::GpiBitBlt(destPS, srcPS, 4L, vPoint, ROP_SRCCOPY , BBO_IGNORE); |
| 599 | |
| 600 | ::GpiDestroyPS(srcPS); |
| 601 | ::GpiDestroyPS(destPS); |
| 602 | return(TRUE); |
| 603 | } |
| 604 | |
| 605 | // Create a mask from a bitmap and a palette index indicating |
| 606 | // the transparent area |
| 607 | bool wxMask::Create( |
| 608 | const wxBitmap& rBitmap |
| 609 | , int nPaletteIndex |
| 610 | ) |
| 611 | { |
| 612 | if (m_hMaskBitmap) |
| 613 | { |
| 614 | ::GpiDeleteBitmap((HBITMAP) m_hMaskBitmap); |
| 615 | m_hMaskBitmap = 0; |
| 616 | } |
| 617 | if (rBitmap.Ok() && rBitmap.GetPalette()->Ok()) |
| 618 | { |
| 619 | unsigned char cRed; |
| 620 | unsigned char cGreen; |
| 621 | unsigned char cBlue; |
| 622 | |
| 623 | if (rBitmap.GetPalette()->GetRGB( nPaletteIndex |
| 624 | ,&cRed |
| 625 | ,&cGreen |
| 626 | ,&cBlue |
| 627 | )) |
| 628 | { |
| 629 | wxColour vTransparentColour( cRed |
| 630 | ,cGreen |
| 631 | ,cBlue |
| 632 | ); |
| 633 | |
| 634 | return (Create( rBitmap |
| 635 | ,vTransparentColour |
| 636 | )); |
| 637 | } |
| 638 | } |
| 639 | return(FALSE); |
| 640 | } |
| 641 | |
| 642 | // Create a mask from a bitmap and a colour indicating |
| 643 | // the transparent area |
| 644 | bool wxMask::Create( |
| 645 | const wxBitmap& rBitmap |
| 646 | , const wxColour& rColour |
| 647 | ) |
| 648 | { |
| 649 | BITMAPINFOHEADER2 vHeader; |
| 650 | DEVOPENSTRUC vDop = { NULL, "DISPLAY", NULL, NULL, NULL, NULL, NULL, NULL, NULL }; |
| 651 | SIZEL vSize = {0, 0}; |
| 652 | POINTL vPoint[4]; |
| 653 | |
| 654 | if (m_hMaskBitmap) |
| 655 | { |
| 656 | ::GpiDeleteBitmap((HBITMAP) m_hMaskBitmap); |
| 657 | m_hMaskBitmap = 0; |
| 658 | } |
| 659 | if (!rBitmap.Ok()) |
| 660 | { |
| 661 | return(FALSE); |
| 662 | } |
| 663 | |
| 664 | // scan the bitmap for the transparent colour and set |
| 665 | // the corresponding pixels in the mask to BLACK and |
| 666 | // the rest to WHITE |
| 667 | COLORREF vMaskColour = OS2RGB(rColour.Red(), rColour.Green(), rColour.Blue()); |
| 668 | |
| 669 | vHeader.cbFix = sizeof(vHeader); |
| 670 | vHeader.cx = (USHORT)rBitmap.GetWidth(); |
| 671 | vHeader.cy = (USHORT)rBitmap.GetHeight(); |
| 672 | vHeader.cPlanes = 1; |
| 673 | vHeader.cBitCount = 1; |
| 674 | |
| 675 | m_hMaskBitmap = (WXHBITMAP) ::GpiCreateBitmap( m_hPs |
| 676 | ,&vHeader |
| 677 | ,0L |
| 678 | ,NULL |
| 679 | ,NULL |
| 680 | ); |
| 681 | |
| 682 | HPS srcPS = ::GpiCreatePS(vHabmain, m_hDc, &vSize, PU_PELS | GPIT_MICRO | GPIA_ASSOC); |
| 683 | ::GpiSetBitmap(srcPS, (HBITMAP)rBitmap.GetHBITMAP()); |
| 684 | HPS destPS = ::GpiCreatePS(vHabmain, m_hDc, &vSize, PU_PELS | GPIT_MICRO | GPIA_ASSOC); |
| 685 | ::GpiSetBitmap(srcPS, (HBITMAP)m_hMaskBitmap); |
| 686 | |
| 687 | // this is not very efficient, but I can't think |
| 688 | // of a better way of doing it |
| 689 | for (int w = 0; w < rBitmap.GetWidth(); w++) |
| 690 | { |
| 691 | for (int h = 0; h < rBitmap.GetHeight(); h++) |
| 692 | { |
| 693 | POINTL vPoint; |
| 694 | |
| 695 | vPoint.x = w; |
| 696 | vPoint.y = h; |
| 697 | |
| 698 | COLORREF col = ::GpiQueryPel(srcPS, &vPoint); |
| 699 | |
| 700 | if (col == vMaskColour) |
| 701 | { |
| 702 | ::GpiSetColor(destPS, CLR_WHITE); |
| 703 | ::GpiSetPel(destPS, &vPoint); |
| 704 | } |
| 705 | else |
| 706 | { |
| 707 | ::GpiSetColor(destPS, CLR_BLACK); |
| 708 | ::GpiSetPel(destPS, &vPoint); |
| 709 | } |
| 710 | } |
| 711 | } |
| 712 | ::GpiDestroyPS(srcPS); |
| 713 | ::GpiDestroyPS(destPS); |
| 714 | return(TRUE); |
| 715 | } |
| 716 | |
| 717 | // ---------------------------------------------------------------------------- |
| 718 | // wxBitmapHandler |
| 719 | // ---------------------------------------------------------------------------- |
| 720 | |
| 721 | bool wxBitmapHandler::Create( |
| 722 | wxGDIImage* pImage |
| 723 | , void* pData |
| 724 | , long lFlags |
| 725 | , int nWidth |
| 726 | , int nHeight |
| 727 | , int nDepth |
| 728 | ) |
| 729 | { |
| 730 | wxBitmap* pBitmap = wxDynamicCast( pImage |
| 731 | ,wxBitmap |
| 732 | ); |
| 733 | |
| 734 | return(pBitmap ? Create( pBitmap |
| 735 | ,pData |
| 736 | ,nWidth |
| 737 | ,nHeight |
| 738 | ,nDepth |
| 739 | ) : FALSE); |
| 740 | } |
| 741 | |
| 742 | bool wxBitmapHandler::Load( |
| 743 | wxGDIImage* pImage |
| 744 | , const wxString& rName |
| 745 | , HPS hPs |
| 746 | , long lFlags |
| 747 | , int nWidth |
| 748 | , int nHeight |
| 749 | ) |
| 750 | { |
| 751 | wxBitmap* pBitmap = wxDynamicCast( pImage |
| 752 | ,wxBitmap |
| 753 | ); |
| 754 | |
| 755 | return(pBitmap ? LoadFile( pBitmap |
| 756 | ,rName |
| 757 | ,hPs |
| 758 | ,lFlags |
| 759 | ,nWidth |
| 760 | ,nHeight |
| 761 | ) : FALSE); |
| 762 | } |
| 763 | |
| 764 | bool wxBitmapHandler::Save( |
| 765 | wxGDIImage* pImage |
| 766 | , const wxString& rName |
| 767 | , int lType |
| 768 | ) |
| 769 | { |
| 770 | wxBitmap* pBitmap = wxDynamicCast( pImage |
| 771 | ,wxBitmap |
| 772 | ); |
| 773 | |
| 774 | return(pBitmap ? SaveFile( pBitmap |
| 775 | ,rName |
| 776 | ,lType |
| 777 | ) : FALSE); |
| 778 | } |
| 779 | |
| 780 | bool wxBitmapHandler::Create( |
| 781 | wxBitmap* WXUNUSED(pBitmap) |
| 782 | , void* WXUNUSED(pData) |
| 783 | , long WXUNUSED(lType) |
| 784 | , int WXUNUSED(nWidth) |
| 785 | , int WXUNUSED(nHeight) |
| 786 | , int WXUNUSED(nDepth) |
| 787 | ) |
| 788 | { |
| 789 | return(FALSE); |
| 790 | } |
| 791 | |
| 792 | bool wxBitmapHandler::LoadFile( |
| 793 | wxBitmap* WXUNUSED(pBitmap) |
| 794 | , const wxString& WXUNUSED(rName) |
| 795 | , HPS WXUNUSED(hPs) |
| 796 | , long WXUNUSED(lType) |
| 797 | , int WXUNUSED(nDesiredWidth) |
| 798 | , int WXUNUSED(nDesiredHeight) |
| 799 | ) |
| 800 | { |
| 801 | return(FALSE); |
| 802 | } |
| 803 | |
| 804 | bool wxBitmapHandler::SaveFile( |
| 805 | wxBitmap* WXUNUSED(pBitmap) |
| 806 | , const wxString& WXUNUSED(rName) |
| 807 | , int WXUNUSED(nType) |
| 808 | , const wxPalette* WXUNUSED(pPalette) |
| 809 | ) |
| 810 | { |
| 811 | return(FALSE); |
| 812 | } |
| 813 | |