| 1 | //////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: bitmap.cpp |
| 3 | // Purpose: wxBitmap |
| 4 | // Author: Julian Smart |
| 5 | // Modified by: |
| 6 | // Created: 04/01/98 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) Julian Smart and Markus Holzem |
| 9 | // Licence: wxWindows license |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // ============================================================================ |
| 13 | // declarations |
| 14 | // ============================================================================ |
| 15 | |
| 16 | // ---------------------------------------------------------------------------- |
| 17 | // headers |
| 18 | // ---------------------------------------------------------------------------- |
| 19 | |
| 20 | #ifdef __GNUG__ |
| 21 | #pragma implementation "bitmap.h" |
| 22 | #endif |
| 23 | |
| 24 | // For compilers that support precompilation, includes "wx.h". |
| 25 | #include "wx/wxprec.h" |
| 26 | |
| 27 | #ifdef __BORLANDC__ |
| 28 | #pragma hdrstop |
| 29 | #endif |
| 30 | |
| 31 | #ifndef WX_PRECOMP |
| 32 | #include <stdio.h> |
| 33 | |
| 34 | #include "wx/list.h" |
| 35 | #include "wx/utils.h" |
| 36 | #include "wx/app.h" |
| 37 | #include "wx/palette.h" |
| 38 | #include "wx/dcmemory.h" |
| 39 | #include "wx/bitmap.h" |
| 40 | #include "wx/icon.h" |
| 41 | #endif |
| 42 | |
| 43 | //#include "device.h" |
| 44 | |
| 45 | #include "wx/msw/private.h" |
| 46 | #include "wx/log.h" |
| 47 | |
| 48 | #if !defined(__WXMICROWIN__) |
| 49 | #include "wx/msw/dib.h" |
| 50 | #endif |
| 51 | |
| 52 | #include "wx/image.h" |
| 53 | #include "wx/xpmdecod.h" |
| 54 | |
| 55 | // missing from mingw32 header |
| 56 | #ifndef CLR_INVALID |
| 57 | #define CLR_INVALID ((COLORREF)-1) |
| 58 | #endif // no CLR_INVALID |
| 59 | |
| 60 | // ---------------------------------------------------------------------------- |
| 61 | // macros |
| 62 | // ---------------------------------------------------------------------------- |
| 63 | |
| 64 | IMPLEMENT_DYNAMIC_CLASS(wxBitmap, wxGDIObject) |
| 65 | IMPLEMENT_DYNAMIC_CLASS(wxMask, wxObject) |
| 66 | |
| 67 | IMPLEMENT_DYNAMIC_CLASS(wxBitmapHandler, wxObject) |
| 68 | |
| 69 | // ============================================================================ |
| 70 | // implementation |
| 71 | // ============================================================================ |
| 72 | |
| 73 | // ---------------------------------------------------------------------------- |
| 74 | // wxBitmapRefData |
| 75 | // ---------------------------------------------------------------------------- |
| 76 | |
| 77 | wxBitmapRefData::wxBitmapRefData() |
| 78 | { |
| 79 | m_quality = 0; |
| 80 | m_selectedInto = NULL; |
| 81 | m_numColors = 0; |
| 82 | m_bitmapMask = NULL; |
| 83 | m_hBitmap = (WXHBITMAP) NULL; |
| 84 | #if wxUSE_DIB_FOR_BITMAP |
| 85 | m_hFileMap = 0; |
| 86 | #endif |
| 87 | } |
| 88 | |
| 89 | void wxBitmapRefData::Free() |
| 90 | { |
| 91 | wxASSERT_MSG( !m_selectedInto, |
| 92 | wxT("deleting bitmap still selected into wxMemoryDC") ); |
| 93 | |
| 94 | if ( m_hBitmap) |
| 95 | { |
| 96 | // printf("About to delete bitmap %d\n", (int) (HBITMAP) m_hBitmap); |
| 97 | #if 1 |
| 98 | if ( !::DeleteObject((HBITMAP)m_hBitmap) ) |
| 99 | { |
| 100 | wxLogLastError(wxT("DeleteObject(hbitmap)")); |
| 101 | } |
| 102 | #endif |
| 103 | } |
| 104 | |
| 105 | #if wxUSE_DIB_FOR_BITMAP |
| 106 | if(m_hFileMap) |
| 107 | { |
| 108 | ::CloseHandle((void*)m_hFileMap); |
| 109 | m_hFileMap = 0; |
| 110 | } |
| 111 | #endif |
| 112 | |
| 113 | delete m_bitmapMask; |
| 114 | m_bitmapMask = NULL; |
| 115 | } |
| 116 | |
| 117 | // ---------------------------------------------------------------------------- |
| 118 | // wxBitmap creation |
| 119 | // ---------------------------------------------------------------------------- |
| 120 | |
| 121 | // this function should be called from all wxBitmap ctors |
| 122 | void wxBitmap::Init() |
| 123 | { |
| 124 | // m_refData = NULL; done in the base class ctor |
| 125 | |
| 126 | } |
| 127 | |
| 128 | #ifdef __WIN32__ |
| 129 | |
| 130 | bool wxBitmap::CopyFromIconOrCursor(const wxGDIImage& icon) |
| 131 | { |
| 132 | #ifndef __WXMICROWIN__ |
| 133 | // it may be either HICON or HCURSOR |
| 134 | HICON hicon = (HICON)icon.GetHandle(); |
| 135 | |
| 136 | ICONINFO iconInfo; |
| 137 | if ( !::GetIconInfo(hicon, &iconInfo) ) |
| 138 | { |
| 139 | wxLogLastError(wxT("GetIconInfo")); |
| 140 | |
| 141 | return FALSE; |
| 142 | } |
| 143 | |
| 144 | wxBitmapRefData *refData = new wxBitmapRefData; |
| 145 | m_refData = refData; |
| 146 | |
| 147 | int w = icon.GetWidth(), |
| 148 | h = icon.GetHeight(); |
| 149 | |
| 150 | refData->m_width = w; |
| 151 | refData->m_height = h; |
| 152 | refData->m_depth = wxDisplayDepth(); |
| 153 | |
| 154 | refData->m_hBitmap = (WXHBITMAP)iconInfo.hbmColor; |
| 155 | |
| 156 | // the mask returned by GetIconInfo() is inversed compared to the usual |
| 157 | // wxWin convention |
| 158 | refData->m_bitmapMask = new wxMask((WXHBITMAP) |
| 159 | wxInvertMask(iconInfo.hbmMask, w, h)); |
| 160 | |
| 161 | |
| 162 | // delete the old one now as we don't need it any more |
| 163 | ::DeleteObject(iconInfo.hbmMask); |
| 164 | |
| 165 | #if WXWIN_COMPATIBILITY_2 |
| 166 | refData->m_ok = TRUE; |
| 167 | #endif // WXWIN_COMPATIBILITY_2 |
| 168 | |
| 169 | return TRUE; |
| 170 | #else |
| 171 | return FALSE; |
| 172 | #endif |
| 173 | } |
| 174 | |
| 175 | #endif // Win32 |
| 176 | |
| 177 | bool wxBitmap::CopyFromCursor(const wxCursor& cursor) |
| 178 | { |
| 179 | UnRef(); |
| 180 | |
| 181 | if ( !cursor.Ok() ) |
| 182 | return FALSE; |
| 183 | |
| 184 | #ifdef __WIN16__ |
| 185 | wxFAIL_MSG( _T("don't know how to convert cursor to bitmap") ); |
| 186 | |
| 187 | return FALSE; |
| 188 | #else |
| 189 | return CopyFromIconOrCursor(cursor); |
| 190 | #endif // Win16 |
| 191 | } |
| 192 | |
| 193 | bool wxBitmap::CopyFromIcon(const wxIcon& icon) |
| 194 | { |
| 195 | UnRef(); |
| 196 | |
| 197 | if ( !icon.Ok() ) |
| 198 | return FALSE; |
| 199 | |
| 200 | // GetIconInfo() doesn't exist under Win16 and I don't know any other way |
| 201 | // to create a bitmap from icon there - but using this way we won't have |
| 202 | // the mask (FIXME) |
| 203 | #ifdef __WIN16__ |
| 204 | int width = icon.GetWidth(), |
| 205 | height = icon.GetHeight(); |
| 206 | |
| 207 | // copy the icon to the bitmap |
| 208 | ScreenHDC hdcScreen; |
| 209 | HDC hdc = ::CreateCompatibleDC(hdcScreen); |
| 210 | HBITMAP hbitmap = ::CreateCompatibleBitmap(hdcScreen, width, height); |
| 211 | HBITMAP hbmpOld = (HBITMAP)::SelectObject(hdc, hbitmap); |
| 212 | |
| 213 | ::DrawIcon(hdc, 0, 0, GetHiconOf(icon)); |
| 214 | |
| 215 | ::SelectObject(hdc, hbmpOld); |
| 216 | ::DeleteDC(hdc); |
| 217 | |
| 218 | wxBitmapRefData *refData = new wxBitmapRefData; |
| 219 | m_refData = refData; |
| 220 | |
| 221 | refData->m_width = width; |
| 222 | refData->m_height = height; |
| 223 | refData->m_depth = wxDisplayDepth(); |
| 224 | |
| 225 | refData->m_hBitmap = (WXHBITMAP)hbitmap; |
| 226 | |
| 227 | #if WXWIN_COMPATIBILITY_2 |
| 228 | refData->m_ok = TRUE; |
| 229 | #endif // WXWIN_COMPATIBILITY_2 |
| 230 | |
| 231 | return TRUE; |
| 232 | #else // Win32 |
| 233 | return CopyFromIconOrCursor(icon); |
| 234 | #endif // Win16/Win32 |
| 235 | } |
| 236 | |
| 237 | wxBitmap::~wxBitmap() |
| 238 | { |
| 239 | } |
| 240 | |
| 241 | wxBitmap::wxBitmap(const char bits[], int width, int height, int depth) |
| 242 | { |
| 243 | Init(); |
| 244 | |
| 245 | #ifndef __WXMICROWIN__ |
| 246 | wxBitmapRefData *refData = new wxBitmapRefData; |
| 247 | m_refData = refData; |
| 248 | |
| 249 | refData->m_width = width; |
| 250 | refData->m_height = height; |
| 251 | refData->m_depth = depth; |
| 252 | refData->m_numColors = 0; |
| 253 | refData->m_selectedInto = NULL; |
| 254 | |
| 255 | char *data; |
| 256 | if ( depth == 1 ) |
| 257 | { |
| 258 | // we assume that it is in XBM format which is not quite the same as |
| 259 | // the format CreateBitmap() wants because the order of bytes in the |
| 260 | // line is inversed! |
| 261 | const size_t bytesPerLine = (width + 7) / 8; |
| 262 | const size_t padding = bytesPerLine % 2; |
| 263 | const size_t len = height * ( padding + bytesPerLine ); |
| 264 | data = (char *)malloc(len); |
| 265 | const char *src = bits; |
| 266 | char *dst = data; |
| 267 | |
| 268 | for ( int rows = 0; rows < height; rows++ ) |
| 269 | { |
| 270 | for ( size_t cols = 0; cols < bytesPerLine; cols++ ) |
| 271 | { |
| 272 | unsigned char val = *src++; |
| 273 | unsigned char reversed = 0; |
| 274 | |
| 275 | for ( int bits = 0; bits < 8; bits++) |
| 276 | { |
| 277 | reversed <<= 1; |
| 278 | reversed |= (val & 0x01); |
| 279 | val >>= 1; |
| 280 | } |
| 281 | *dst++ = reversed; |
| 282 | } |
| 283 | |
| 284 | if ( padding ) |
| 285 | *dst++ = 0; |
| 286 | } |
| 287 | } |
| 288 | else |
| 289 | { |
| 290 | // bits should already be in Windows standard format |
| 291 | data = (char *)bits; // const_cast is harmless |
| 292 | } |
| 293 | |
| 294 | HBITMAP hbmp = ::CreateBitmap(width, height, 1, depth, data); |
| 295 | if ( !hbmp ) |
| 296 | { |
| 297 | wxLogLastError(wxT("CreateBitmap")); |
| 298 | } |
| 299 | |
| 300 | if ( data != bits ) |
| 301 | { |
| 302 | free(data); |
| 303 | } |
| 304 | |
| 305 | SetHBITMAP((WXHBITMAP)hbmp); |
| 306 | #endif |
| 307 | } |
| 308 | |
| 309 | // Create from XPM data |
| 310 | bool wxBitmap::CreateFromXpm(const char **data) |
| 311 | { |
| 312 | #if wxUSE_IMAGE && wxUSE_XPM |
| 313 | Init(); |
| 314 | |
| 315 | wxCHECK_MSG( data != NULL, FALSE, wxT("invalid bitmap data") ) |
| 316 | |
| 317 | wxXPMDecoder decoder; |
| 318 | wxImage img = decoder.ReadData(data); |
| 319 | wxCHECK_MSG( img.Ok(), FALSE, wxT("invalid bitmap data") ) |
| 320 | |
| 321 | *this = wxBitmap(img); |
| 322 | return TRUE; |
| 323 | #else |
| 324 | return FALSE; |
| 325 | #endif |
| 326 | } |
| 327 | |
| 328 | wxBitmap::wxBitmap(int w, int h, int d) |
| 329 | { |
| 330 | Init(); |
| 331 | |
| 332 | (void)Create(w, h, d); |
| 333 | } |
| 334 | |
| 335 | wxBitmap::wxBitmap(void *data, long type, int width, int height, int depth) |
| 336 | { |
| 337 | Init(); |
| 338 | |
| 339 | (void)Create(data, type, width, height, depth); |
| 340 | } |
| 341 | |
| 342 | wxBitmap::wxBitmap(const wxString& filename, wxBitmapType type) |
| 343 | { |
| 344 | Init(); |
| 345 | |
| 346 | LoadFile(filename, (int)type); |
| 347 | } |
| 348 | |
| 349 | bool wxBitmap::Create(int w, int h, int d) |
| 350 | { |
| 351 | UnRef(); |
| 352 | |
| 353 | m_refData = new wxBitmapRefData; |
| 354 | |
| 355 | #if wxUSE_DIB_FOR_BITMAP |
| 356 | if ( w && h && d >= 16 ) |
| 357 | { |
| 358 | if ( !CreateDIB(w, h, d) ) |
| 359 | return FALSE; |
| 360 | } |
| 361 | else |
| 362 | #endif // wxUSE_DIB_FOR_BITMAP |
| 363 | { |
| 364 | GetBitmapData()->m_width = w; |
| 365 | GetBitmapData()->m_height = h; |
| 366 | GetBitmapData()->m_depth = d; |
| 367 | |
| 368 | HBITMAP hbmp; |
| 369 | #ifndef __WXMICROWIN__ |
| 370 | if ( d > 0 ) |
| 371 | { |
| 372 | hbmp = ::CreateBitmap(w, h, 1, d, NULL); |
| 373 | if ( !hbmp ) |
| 374 | { |
| 375 | wxLogLastError(wxT("CreateBitmap")); |
| 376 | } |
| 377 | } |
| 378 | else |
| 379 | #endif // !__WXMICROWIN__ |
| 380 | { |
| 381 | ScreenHDC dc; |
| 382 | hbmp = ::CreateCompatibleBitmap(dc, w, h); |
| 383 | if ( !hbmp ) |
| 384 | { |
| 385 | wxLogLastError(wxT("CreateCompatibleBitmap")); |
| 386 | } |
| 387 | |
| 388 | GetBitmapData()->m_depth = wxDisplayDepth(); |
| 389 | } |
| 390 | |
| 391 | SetHBITMAP((WXHBITMAP)hbmp); |
| 392 | |
| 393 | #if WXWIN_COMPATIBILITY_2 |
| 394 | GetBitmapData()->m_ok = hbmp != 0; |
| 395 | #endif // WXWIN_COMPATIBILITY_2 |
| 396 | } |
| 397 | |
| 398 | return Ok(); |
| 399 | } |
| 400 | |
| 401 | #if wxUSE_DIB_FOR_BITMAP |
| 402 | |
| 403 | void *wxBitmap::CreateDIB(int width, int height, int depth) |
| 404 | { |
| 405 | void *dibBits; |
| 406 | const int infosize = sizeof(BITMAPINFOHEADER); |
| 407 | |
| 408 | BITMAPINFO *info = (BITMAPINFO *)malloc(infosize); |
| 409 | if ( info ) |
| 410 | { |
| 411 | memset(info, 0, infosize); |
| 412 | |
| 413 | info->bmiHeader.biSize = infosize; |
| 414 | info->bmiHeader.biWidth = width; |
| 415 | info->bmiHeader.biHeight = height; |
| 416 | info->bmiHeader.biPlanes = 1; |
| 417 | info->bmiHeader.biBitCount = depth; |
| 418 | info->bmiHeader.biCompression = BI_RGB; |
| 419 | info->bmiHeader.biSizeImage = |
| 420 | (((width * (depth/8)) + sizeof(DWORD) - 1) / |
| 421 | sizeof(DWORD) * sizeof(DWORD)) * height; |
| 422 | info->bmiHeader.biXPelsPerMeter = 0; |
| 423 | info->bmiHeader.biYPelsPerMeter = 0; |
| 424 | info->bmiHeader.biClrUsed = 0; |
| 425 | info->bmiHeader.biClrImportant = 0; |
| 426 | GetBitmapData()->m_hFileMap = |
| 427 | (WXHANDLE)::CreateFileMapping |
| 428 | ( |
| 429 | INVALID_HANDLE_VALUE, |
| 430 | 0, |
| 431 | PAGE_READWRITE | SEC_COMMIT, |
| 432 | 0, |
| 433 | info->bmiHeader.biSizeImage, |
| 434 | 0 |
| 435 | ); |
| 436 | |
| 437 | // No need to report an error here. If it fails, we just won't use a |
| 438 | // file mapping and CreateDIBSection will just allocate memory for us. |
| 439 | GetBitmapData()->m_handle = |
| 440 | (WXHANDLE)::CreateDIBSection |
| 441 | ( |
| 442 | 0, |
| 443 | info, |
| 444 | DIB_RGB_COLORS, |
| 445 | &dibBits, |
| 446 | (HANDLE)GetBitmapData()->m_hFileMap, |
| 447 | 0 |
| 448 | ); |
| 449 | |
| 450 | if ( !GetBitmapData()->m_handle ) |
| 451 | wxLogLastError(wxT("CreateDIBSection")); |
| 452 | |
| 453 | SetWidth(width); |
| 454 | SetHeight(height); |
| 455 | SetDepth(depth); |
| 456 | |
| 457 | free(info); |
| 458 | } |
| 459 | else |
| 460 | { |
| 461 | wxFAIL_MSG( wxT("could not allocate memory for DIB header") ); |
| 462 | |
| 463 | dibBits = NULL; |
| 464 | } |
| 465 | |
| 466 | return dibBits; |
| 467 | } |
| 468 | |
| 469 | #endif // wxUSE_DIB_FOR_BITMAP |
| 470 | |
| 471 | // ---------------------------------------------------------------------------- |
| 472 | // wxImage to/from conversions |
| 473 | // ---------------------------------------------------------------------------- |
| 474 | |
| 475 | #if wxUSE_IMAGE |
| 476 | |
| 477 | bool wxBitmap::CreateFromImage( const wxImage& image, int depth ) |
| 478 | { |
| 479 | #ifdef __WXMICROWIN__ |
| 480 | |
| 481 | // Set this to 1 to experiment with mask code, |
| 482 | // which currently doesn't work |
| 483 | #define USE_MASKS 0 |
| 484 | |
| 485 | m_refData = new wxBitmapRefData(); |
| 486 | |
| 487 | // Initial attempt at a simple-minded implementation. |
| 488 | // The bitmap will always be created at the screen depth, |
| 489 | // so the 'depth' argument is ignored. |
| 490 | |
| 491 | HDC hScreenDC = ::GetDC(NULL); |
| 492 | int screenDepth = ::GetDeviceCaps(hScreenDC, BITSPIXEL); |
| 493 | |
| 494 | HBITMAP hBitmap = ::CreateCompatibleBitmap(hScreenDC, image.GetWidth(), image.GetHeight()); |
| 495 | HBITMAP hMaskBitmap = NULL; |
| 496 | HBITMAP hOldMaskBitmap = NULL; |
| 497 | HDC hMaskDC = NULL; |
| 498 | unsigned char maskR = 0; |
| 499 | unsigned char maskG = 0; |
| 500 | unsigned char maskB = 0; |
| 501 | |
| 502 | // printf("Created bitmap %d\n", (int) hBitmap); |
| 503 | if (hBitmap == NULL) |
| 504 | { |
| 505 | ::ReleaseDC(NULL, hScreenDC); |
| 506 | return FALSE; |
| 507 | } |
| 508 | HDC hMemDC = ::CreateCompatibleDC(hScreenDC); |
| 509 | |
| 510 | HBITMAP hOldBitmap = ::SelectObject(hMemDC, hBitmap); |
| 511 | ::ReleaseDC(NULL, hScreenDC); |
| 512 | |
| 513 | // created an mono-bitmap for the possible mask |
| 514 | bool hasMask = image.HasMask(); |
| 515 | |
| 516 | if ( hasMask ) |
| 517 | { |
| 518 | #if USE_MASKS |
| 519 | // FIXME: we should be able to pass bpp = 1, but |
| 520 | // GdBlit can't handle a different depth |
| 521 | #if 0 |
| 522 | hMaskBitmap = ::CreateBitmap( (WORD)image.GetWidth(), (WORD)image.GetHeight(), 1, 1, NULL ); |
| 523 | #else |
| 524 | hMaskBitmap = ::CreateCompatibleBitmap( hMemDC, (WORD)image.GetWidth(), (WORD)image.GetHeight()); |
| 525 | #endif |
| 526 | maskR = image.GetMaskRed(); |
| 527 | maskG = image.GetMaskGreen(); |
| 528 | maskB = image.GetMaskBlue(); |
| 529 | |
| 530 | if (!hMaskBitmap) |
| 531 | { |
| 532 | hasMask = FALSE; |
| 533 | } |
| 534 | else |
| 535 | { |
| 536 | hScreenDC = ::GetDC(NULL); |
| 537 | hMaskDC = ::CreateCompatibleDC(hScreenDC); |
| 538 | ::ReleaseDC(NULL, hScreenDC); |
| 539 | |
| 540 | hOldMaskBitmap = ::SelectObject( hMaskDC, hMaskBitmap); |
| 541 | } |
| 542 | #else |
| 543 | hasMask = FALSE; |
| 544 | #endif |
| 545 | } |
| 546 | |
| 547 | int i, j; |
| 548 | for (i = 0; i < image.GetWidth(); i++) |
| 549 | { |
| 550 | for (j = 0; j < image.GetHeight(); j++) |
| 551 | { |
| 552 | unsigned char red = image.GetRed(i, j); |
| 553 | unsigned char green = image.GetGreen(i, j); |
| 554 | unsigned char blue = image.GetBlue(i, j); |
| 555 | |
| 556 | ::SetPixel(hMemDC, i, j, PALETTERGB(red, green, blue)); |
| 557 | |
| 558 | if (hasMask) |
| 559 | { |
| 560 | // scan the bitmap for the transparent colour and set the corresponding |
| 561 | // pixels in the mask to BLACK and the rest to WHITE |
| 562 | if (maskR == red && maskG == green && maskB == blue) |
| 563 | ::SetPixel(hMaskDC, i, j, PALETTERGB(0, 0, 0)); |
| 564 | else |
| 565 | ::SetPixel(hMaskDC, i, j, PALETTERGB(255, 255, 255)); |
| 566 | } |
| 567 | } |
| 568 | } |
| 569 | |
| 570 | ::SelectObject(hMemDC, hOldBitmap); |
| 571 | ::DeleteDC(hMemDC); |
| 572 | if (hasMask) |
| 573 | { |
| 574 | ::SelectObject(hMaskDC, hOldMaskBitmap); |
| 575 | ::DeleteDC(hMaskDC); |
| 576 | |
| 577 | ((wxBitmapRefData*)m_refData)->m_bitmapMask = new wxMask((WXHBITMAP) hMaskBitmap); |
| 578 | } |
| 579 | |
| 580 | SetWidth(image.GetWidth()); |
| 581 | SetHeight(image.GetHeight()); |
| 582 | SetDepth(screenDepth); |
| 583 | SetHBITMAP( (WXHBITMAP) hBitmap ); |
| 584 | |
| 585 | #if wxUSE_PALETTE |
| 586 | // Copy the palette from the source image |
| 587 | SetPalette(image.GetPalette()); |
| 588 | #endif // wxUSE_PALETTE |
| 589 | |
| 590 | #if WXWIN_COMPATIBILITY_2 |
| 591 | // check the wxBitmap object |
| 592 | GetBitmapData()->SetOk(); |
| 593 | #endif // WXWIN_COMPATIBILITY_2 |
| 594 | |
| 595 | return TRUE; |
| 596 | |
| 597 | #else // !__WXMICROWIN__ |
| 598 | wxCHECK_MSG( image.Ok(), FALSE, wxT("invalid image") ) |
| 599 | |
| 600 | m_refData = new wxBitmapRefData(); |
| 601 | |
| 602 | #if wxUSE_DIB_FOR_BITMAP |
| 603 | int h = image.GetHeight(); |
| 604 | int w = image.GetWidth(); |
| 605 | unsigned char *dibBits = (unsigned char*)CreateDIB(w, h, 24); |
| 606 | if ( !dibBits ) |
| 607 | return FALSE; |
| 608 | |
| 609 | // DIBs are stored in bottom to top order so we need to copy bits line by |
| 610 | // line and starting from the end |
| 611 | const int srcBytesPerLine = w * 3; |
| 612 | const int dstBytesPerLine = (srcBytesPerLine + sizeof(DWORD) - 1) / |
| 613 | sizeof(DWORD) * sizeof(DWORD); |
| 614 | const unsigned char *src = image.GetData() + ((h - 1) * srcBytesPerLine); |
| 615 | for ( int i = 0; i < h; i++ ) |
| 616 | { |
| 617 | // copy one DIB line |
| 618 | int x = w; |
| 619 | const unsigned char *rgbBits = src; |
| 620 | while ( x-- ) |
| 621 | { |
| 622 | // also, the order of RGB is inversed for DIBs |
| 623 | *dibBits++ = rgbBits[2]; |
| 624 | *dibBits++ = rgbBits[1]; |
| 625 | *dibBits++ = rgbBits[0]; |
| 626 | |
| 627 | rgbBits += 3; |
| 628 | } |
| 629 | |
| 630 | // pass to the next line |
| 631 | src -= srcBytesPerLine; |
| 632 | dibBits += dstBytesPerLine - srcBytesPerLine; |
| 633 | } |
| 634 | |
| 635 | if ( image.HasMask() ) |
| 636 | { |
| 637 | SetMask(new wxMask(*this, wxColour(image.GetMaskRed(), |
| 638 | image.GetMaskGreen(), |
| 639 | image.GetMaskBlue()))); |
| 640 | } |
| 641 | #else // wxUSE_DIB_FOR_BITMAP |
| 642 | // sizeLimit is the MS upper limit for the DIB size |
| 643 | #ifdef WIN32 |
| 644 | int sizeLimit = 1024*768*3; |
| 645 | #else |
| 646 | int sizeLimit = 0x7fff; |
| 647 | #endif |
| 648 | |
| 649 | // width and height of the device-dependent bitmap |
| 650 | int width = image.GetWidth(); |
| 651 | int bmpHeight = image.GetHeight(); |
| 652 | |
| 653 | // calc the number of bytes per scanline and padding |
| 654 | int bytePerLine = width*3; |
| 655 | int sizeDWORD = sizeof( DWORD ); |
| 656 | int lineBoundary = bytePerLine % sizeDWORD; |
| 657 | int padding = 0; |
| 658 | if( lineBoundary > 0 ) |
| 659 | { |
| 660 | padding = sizeDWORD - lineBoundary; |
| 661 | bytePerLine += padding; |
| 662 | } |
| 663 | // calc the number of DIBs and heights of DIBs |
| 664 | int numDIB = 1; |
| 665 | int hRemain = 0; |
| 666 | int height = sizeLimit/bytePerLine; |
| 667 | if( height >= bmpHeight ) |
| 668 | height = bmpHeight; |
| 669 | else |
| 670 | { |
| 671 | numDIB = bmpHeight / height; |
| 672 | hRemain = bmpHeight % height; |
| 673 | if( hRemain >0 ) numDIB++; |
| 674 | } |
| 675 | |
| 676 | // set bitmap parameters |
| 677 | wxCHECK_MSG( image.Ok(), FALSE, wxT("invalid image") ); |
| 678 | SetWidth( width ); |
| 679 | SetHeight( bmpHeight ); |
| 680 | if (depth == -1) depth = wxDisplayDepth(); |
| 681 | SetDepth( depth ); |
| 682 | |
| 683 | #if wxUSE_PALETTE |
| 684 | // Copy the palette from the source image |
| 685 | SetPalette(image.GetPalette()); |
| 686 | #endif // wxUSE_PALETTE |
| 687 | |
| 688 | // create a DIB header |
| 689 | int headersize = sizeof(BITMAPINFOHEADER); |
| 690 | BITMAPINFO *lpDIBh = (BITMAPINFO *) malloc( headersize ); |
| 691 | wxCHECK_MSG( lpDIBh, FALSE, wxT("could not allocate memory for DIB header") ); |
| 692 | // Fill in the DIB header |
| 693 | lpDIBh->bmiHeader.biSize = headersize; |
| 694 | lpDIBh->bmiHeader.biWidth = (DWORD)width; |
| 695 | lpDIBh->bmiHeader.biHeight = (DWORD)(-height); |
| 696 | lpDIBh->bmiHeader.biSizeImage = bytePerLine*height; |
| 697 | // the general formula for biSizeImage: |
| 698 | // ( ( ( ((DWORD)width*24) +31 ) & ~31 ) >> 3 ) * height; |
| 699 | lpDIBh->bmiHeader.biPlanes = 1; |
| 700 | lpDIBh->bmiHeader.biBitCount = 24; |
| 701 | lpDIBh->bmiHeader.biCompression = BI_RGB; |
| 702 | lpDIBh->bmiHeader.biClrUsed = 0; |
| 703 | // These seem not really needed for our purpose here. |
| 704 | lpDIBh->bmiHeader.biClrImportant = 0; |
| 705 | lpDIBh->bmiHeader.biXPelsPerMeter = 0; |
| 706 | lpDIBh->bmiHeader.biYPelsPerMeter = 0; |
| 707 | // memory for DIB data |
| 708 | unsigned char *lpBits; |
| 709 | lpBits = (unsigned char *)malloc( lpDIBh->bmiHeader.biSizeImage ); |
| 710 | if( !lpBits ) |
| 711 | { |
| 712 | wxFAIL_MSG( wxT("could not allocate memory for DIB") ); |
| 713 | free( lpDIBh ); |
| 714 | return FALSE; |
| 715 | } |
| 716 | |
| 717 | // create and set the device-dependent bitmap |
| 718 | HDC hdc = ::GetDC(NULL); |
| 719 | HDC memdc = ::CreateCompatibleDC( hdc ); |
| 720 | HBITMAP hbitmap; |
| 721 | hbitmap = ::CreateCompatibleBitmap( hdc, width, bmpHeight ); |
| 722 | ::SelectObject( memdc, hbitmap); |
| 723 | |
| 724 | #if wxUSE_PALETTE |
| 725 | HPALETTE hOldPalette = 0; |
| 726 | if (image.GetPalette().Ok()) |
| 727 | { |
| 728 | hOldPalette = ::SelectPalette(memdc, (HPALETTE) image.GetPalette().GetHPALETTE(), FALSE); |
| 729 | ::RealizePalette(memdc); |
| 730 | } |
| 731 | #endif // wxUSE_PALETTE |
| 732 | |
| 733 | // copy image data into DIB data and then into DDB (in a loop) |
| 734 | unsigned char *data = image.GetData(); |
| 735 | int i, j, n; |
| 736 | int origin = 0; |
| 737 | unsigned char *ptdata = data; |
| 738 | unsigned char *ptbits; |
| 739 | |
| 740 | for( n=0; n<numDIB; n++ ) |
| 741 | { |
| 742 | if( numDIB > 1 && n == numDIB-1 && hRemain > 0 ) |
| 743 | { |
| 744 | // redefine height and size of the (possibly) last smaller DIB |
| 745 | // memory is not reallocated |
| 746 | height = hRemain; |
| 747 | lpDIBh->bmiHeader.biHeight = (DWORD)(-height); |
| 748 | lpDIBh->bmiHeader.biSizeImage = bytePerLine*height; |
| 749 | } |
| 750 | ptbits = lpBits; |
| 751 | |
| 752 | for( j=0; j<height; j++ ) |
| 753 | { |
| 754 | for( i=0; i<width; i++ ) |
| 755 | { |
| 756 | *(ptbits++) = *(ptdata+2); |
| 757 | *(ptbits++) = *(ptdata+1); |
| 758 | *(ptbits++) = *(ptdata ); |
| 759 | ptdata += 3; |
| 760 | } |
| 761 | for( i=0; i< padding; i++ ) *(ptbits++) = 0; |
| 762 | } |
| 763 | ::StretchDIBits( memdc, 0, origin, width, height,\ |
| 764 | 0, 0, width, height, lpBits, lpDIBh, DIB_RGB_COLORS, SRCCOPY); |
| 765 | origin += height; |
| 766 | // if numDIB = 1, lines below can also be used |
| 767 | // hbitmap = CreateDIBitmap( hdc, &(lpDIBh->bmiHeader), CBM_INIT, lpBits, lpDIBh, DIB_RGB_COLORS ); |
| 768 | // The above line is equivalent to the following two lines. |
| 769 | // hbitmap = ::CreateCompatibleBitmap( hdc, width, height ); |
| 770 | // ::SetDIBits( hdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS); |
| 771 | // or the following lines |
| 772 | // hbitmap = ::CreateCompatibleBitmap( hdc, width, height ); |
| 773 | // HDC memdc = ::CreateCompatibleDC( hdc ); |
| 774 | // ::SelectObject( memdc, hbitmap); |
| 775 | // ::SetDIBitsToDevice( memdc, 0, 0, width, height, |
| 776 | // 0, 0, 0, height, (void *)lpBits, lpDIBh, DIB_RGB_COLORS); |
| 777 | // ::SelectObject( memdc, 0 ); |
| 778 | // ::DeleteDC( memdc ); |
| 779 | } |
| 780 | SetHBITMAP( (WXHBITMAP) hbitmap ); |
| 781 | |
| 782 | #if wxUSE_PALETTE |
| 783 | if (hOldPalette) |
| 784 | SelectPalette(memdc, hOldPalette, FALSE); |
| 785 | #endif // wxUSE_PALETTE |
| 786 | |
| 787 | // similarly, created an mono-bitmap for the possible mask |
| 788 | if( image.HasMask() ) |
| 789 | { |
| 790 | hbitmap = ::CreateBitmap( (WORD)width, (WORD)bmpHeight, 1, 1, NULL ); |
| 791 | HGDIOBJ hbmpOld = ::SelectObject( memdc, hbitmap); |
| 792 | if( numDIB == 1 ) height = bmpHeight; |
| 793 | else height = sizeLimit/bytePerLine; |
| 794 | lpDIBh->bmiHeader.biHeight = (DWORD)(-height); |
| 795 | lpDIBh->bmiHeader.biSizeImage = bytePerLine*height; |
| 796 | origin = 0; |
| 797 | unsigned char r = image.GetMaskRed(); |
| 798 | unsigned char g = image.GetMaskGreen(); |
| 799 | unsigned char b = image.GetMaskBlue(); |
| 800 | unsigned char zero = 0, one = 255; |
| 801 | ptdata = data; |
| 802 | for( n=0; n<numDIB; n++ ) |
| 803 | { |
| 804 | if( numDIB > 1 && n == numDIB - 1 && hRemain > 0 ) |
| 805 | { |
| 806 | // redefine height and size of the (possibly) last smaller DIB |
| 807 | // memory is not reallocated |
| 808 | height = hRemain; |
| 809 | lpDIBh->bmiHeader.biHeight = (DWORD)(-height); |
| 810 | lpDIBh->bmiHeader.biSizeImage = bytePerLine*height; |
| 811 | } |
| 812 | ptbits = lpBits; |
| 813 | for( int j=0; j<height; j++ ) |
| 814 | { |
| 815 | for(i=0; i<width; i++ ) |
| 816 | { |
| 817 | // was causing a code gen bug in cw : if( ( cr !=r) || (cg!=g) || (cb!=b) ) |
| 818 | unsigned char cr = (*(ptdata++)) ; |
| 819 | unsigned char cg = (*(ptdata++)) ; |
| 820 | unsigned char cb = (*(ptdata++)) ; |
| 821 | |
| 822 | if( ( cr !=r) || (cg!=g) || (cb!=b) ) |
| 823 | { |
| 824 | *(ptbits++) = one; |
| 825 | *(ptbits++) = one; |
| 826 | *(ptbits++) = one; |
| 827 | } |
| 828 | else |
| 829 | { |
| 830 | *(ptbits++) = zero; |
| 831 | *(ptbits++) = zero; |
| 832 | *(ptbits++) = zero; |
| 833 | } |
| 834 | } |
| 835 | for( i=0; i< padding; i++ ) *(ptbits++) = zero; |
| 836 | } |
| 837 | ::StretchDIBits( memdc, 0, origin, width, height,\ |
| 838 | 0, 0, width, height, lpBits, lpDIBh, DIB_RGB_COLORS, SRCCOPY); |
| 839 | origin += height; |
| 840 | } |
| 841 | // create a wxMask object |
| 842 | wxMask *mask = new wxMask(); |
| 843 | mask->SetMaskBitmap( (WXHBITMAP) hbitmap ); |
| 844 | SetMask( mask ); |
| 845 | // It will be deleted when the wxBitmap object is deleted (as of 01/1999) |
| 846 | /* The following can also be used but is slow to run |
| 847 | wxColour colour( GetMaskRed(), GetMaskGreen(), GetMaskBlue()); |
| 848 | wxMask *mask = new wxMask( *this, colour ); |
| 849 | SetMask( mask ); |
| 850 | */ |
| 851 | |
| 852 | ::SelectObject( memdc, hbmpOld ); |
| 853 | } |
| 854 | |
| 855 | // free allocated resources |
| 856 | ::DeleteDC( memdc ); |
| 857 | ::ReleaseDC(NULL, hdc); |
| 858 | free(lpDIBh); |
| 859 | free(lpBits); |
| 860 | #endif // wxUSE_DIB_FOR_BITMAP |
| 861 | |
| 862 | #if WXWIN_COMPATIBILITY_2 |
| 863 | // check the wxBitmap object |
| 864 | GetBitmapData()->SetOk(); |
| 865 | #endif // WXWIN_COMPATIBILITY_2 |
| 866 | |
| 867 | return TRUE; |
| 868 | #endif // __WXMICROWIN__/!__WXMICROWIN__ |
| 869 | } |
| 870 | |
| 871 | wxImage wxBitmap::ConvertToImage() const |
| 872 | { |
| 873 | #ifdef __WXMICROWIN__ |
| 874 | // Initial attempt at a simple-minded implementation. |
| 875 | // The bitmap will always be created at the screen depth, |
| 876 | // so the 'depth' argument is ignored. |
| 877 | // TODO: transparency (create a mask image) |
| 878 | |
| 879 | if (!Ok()) |
| 880 | { |
| 881 | wxFAIL_MSG( wxT("bitmap is invalid") ); |
| 882 | return wxNullImage; |
| 883 | } |
| 884 | |
| 885 | wxImage image; |
| 886 | |
| 887 | wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") ); |
| 888 | |
| 889 | // create an wxImage object |
| 890 | int width = GetWidth(); |
| 891 | int height = GetHeight(); |
| 892 | image.Create( width, height ); |
| 893 | unsigned char *data = image.GetData(); |
| 894 | if( !data ) |
| 895 | { |
| 896 | wxFAIL_MSG( wxT("could not allocate data for image") ); |
| 897 | return wxNullImage; |
| 898 | } |
| 899 | |
| 900 | HDC hScreenDC = ::GetDC(NULL); |
| 901 | |
| 902 | HDC hMemDC = ::CreateCompatibleDC(hScreenDC); |
| 903 | ::ReleaseDC(NULL, hScreenDC); |
| 904 | |
| 905 | HBITMAP hBitmap = (HBITMAP) GetHBITMAP(); |
| 906 | |
| 907 | HBITMAP hOldBitmap = ::SelectObject(hMemDC, hBitmap); |
| 908 | |
| 909 | int i, j; |
| 910 | for (i = 0; i < GetWidth(); i++) |
| 911 | { |
| 912 | for (j = 0; j < GetHeight(); j++) |
| 913 | { |
| 914 | COLORREF color = ::GetPixel(hMemDC, i, j); |
| 915 | unsigned char red = GetRValue(color); |
| 916 | unsigned char green = GetGValue(color); |
| 917 | unsigned char blue = GetBValue(color); |
| 918 | |
| 919 | image.SetRGB(i, j, red, green, blue); |
| 920 | } |
| 921 | } |
| 922 | |
| 923 | ::SelectObject(hMemDC, hOldBitmap); |
| 924 | ::DeleteDC(hMemDC); |
| 925 | |
| 926 | #if wxUSE_PALETTE |
| 927 | // Copy the palette from the source image |
| 928 | if (GetPalette()) |
| 929 | image.SetPalette(* GetPalette()); |
| 930 | #endif // wxUSE_PALETTE |
| 931 | |
| 932 | return image; |
| 933 | |
| 934 | #else // !__WXMICROWIN__ |
| 935 | wxImage image; |
| 936 | |
| 937 | wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") ); |
| 938 | |
| 939 | // create an wxImage object |
| 940 | int width = GetWidth(); |
| 941 | int height = GetHeight(); |
| 942 | image.Create( width, height ); |
| 943 | unsigned char *data = image.GetData(); |
| 944 | if( !data ) |
| 945 | { |
| 946 | wxFAIL_MSG( wxT("could not allocate data for image") ); |
| 947 | return wxNullImage; |
| 948 | } |
| 949 | |
| 950 | // calc the number of bytes per scanline and padding in the DIB |
| 951 | int bytePerLine = width*3; |
| 952 | int sizeDWORD = sizeof( DWORD ); |
| 953 | int lineBoundary = bytePerLine % sizeDWORD; |
| 954 | int padding = 0; |
| 955 | if( lineBoundary > 0 ) |
| 956 | { |
| 957 | padding = sizeDWORD - lineBoundary; |
| 958 | bytePerLine += padding; |
| 959 | } |
| 960 | |
| 961 | // create a DIB header |
| 962 | int headersize = sizeof(BITMAPINFOHEADER); |
| 963 | BITMAPINFO *lpDIBh = (BITMAPINFO *) malloc( headersize ); |
| 964 | if( !lpDIBh ) |
| 965 | { |
| 966 | wxFAIL_MSG( wxT("could not allocate data for DIB header") ); |
| 967 | free( data ); |
| 968 | return wxNullImage; |
| 969 | } |
| 970 | // Fill in the DIB header |
| 971 | lpDIBh->bmiHeader.biSize = headersize; |
| 972 | lpDIBh->bmiHeader.biWidth = width; |
| 973 | lpDIBh->bmiHeader.biHeight = -height; |
| 974 | lpDIBh->bmiHeader.biSizeImage = bytePerLine * height; |
| 975 | lpDIBh->bmiHeader.biPlanes = 1; |
| 976 | lpDIBh->bmiHeader.biBitCount = 24; |
| 977 | lpDIBh->bmiHeader.biCompression = BI_RGB; |
| 978 | lpDIBh->bmiHeader.biClrUsed = 0; |
| 979 | // These seem not really needed for our purpose here. |
| 980 | lpDIBh->bmiHeader.biClrImportant = 0; |
| 981 | lpDIBh->bmiHeader.biXPelsPerMeter = 0; |
| 982 | lpDIBh->bmiHeader.biYPelsPerMeter = 0; |
| 983 | // memory for DIB data |
| 984 | unsigned char *lpBits; |
| 985 | lpBits = (unsigned char *) malloc( lpDIBh->bmiHeader.biSizeImage ); |
| 986 | if( !lpBits ) |
| 987 | { |
| 988 | wxFAIL_MSG( wxT("could not allocate data for DIB") ); |
| 989 | free( data ); |
| 990 | free( lpDIBh ); |
| 991 | return wxNullImage; |
| 992 | } |
| 993 | |
| 994 | // copy data from the device-dependent bitmap to the DIB |
| 995 | HDC hdc = ::GetDC(NULL); |
| 996 | HBITMAP hbitmap; |
| 997 | hbitmap = (HBITMAP) GetHBITMAP(); |
| 998 | ::GetDIBits( hdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS ); |
| 999 | |
| 1000 | // copy DIB data into the wxImage object |
| 1001 | int i, j; |
| 1002 | unsigned char *ptdata = data; |
| 1003 | unsigned char *ptbits = lpBits; |
| 1004 | for( i=0; i<height; i++ ) |
| 1005 | { |
| 1006 | for( j=0; j<width; j++ ) |
| 1007 | { |
| 1008 | *(ptdata++) = *(ptbits+2); |
| 1009 | *(ptdata++) = *(ptbits+1); |
| 1010 | *(ptdata++) = *(ptbits ); |
| 1011 | ptbits += 3; |
| 1012 | } |
| 1013 | ptbits += padding; |
| 1014 | } |
| 1015 | |
| 1016 | // similarly, set data according to the possible mask bitmap |
| 1017 | if( GetMask() && GetMask()->GetMaskBitmap() ) |
| 1018 | { |
| 1019 | hbitmap = (HBITMAP) GetMask()->GetMaskBitmap(); |
| 1020 | // memory DC created, color set, data copied, and memory DC deleted |
| 1021 | HDC memdc = ::CreateCompatibleDC( hdc ); |
| 1022 | ::SetTextColor( memdc, RGB( 0, 0, 0 ) ); |
| 1023 | ::SetBkColor( memdc, RGB( 255, 255, 255 ) ); |
| 1024 | ::GetDIBits( memdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS ); |
| 1025 | ::DeleteDC( memdc ); |
| 1026 | // background color set to RGB(16,16,16) in consistent with wxGTK |
| 1027 | unsigned char r=16, g=16, b=16; |
| 1028 | ptdata = data; |
| 1029 | ptbits = lpBits; |
| 1030 | for( i=0; i<height; i++ ) |
| 1031 | { |
| 1032 | for( j=0; j<width; j++ ) |
| 1033 | { |
| 1034 | if( *ptbits != 0 ) |
| 1035 | ptdata += 3; |
| 1036 | else |
| 1037 | { |
| 1038 | *(ptdata++) = r; |
| 1039 | *(ptdata++) = g; |
| 1040 | *(ptdata++) = b; |
| 1041 | } |
| 1042 | ptbits += 3; |
| 1043 | } |
| 1044 | ptbits += padding; |
| 1045 | } |
| 1046 | image.SetMaskColour( r, g, b ); |
| 1047 | image.SetMask( TRUE ); |
| 1048 | } |
| 1049 | else |
| 1050 | { |
| 1051 | image.SetMask( FALSE ); |
| 1052 | } |
| 1053 | // free allocated resources |
| 1054 | ::ReleaseDC(NULL, hdc); |
| 1055 | free(lpDIBh); |
| 1056 | free(lpBits); |
| 1057 | |
| 1058 | return image; |
| 1059 | #endif // __WXMICROWIN__/!__WXMICROWIN__ |
| 1060 | } |
| 1061 | |
| 1062 | #endif // wxUSE_IMAGE |
| 1063 | |
| 1064 | bool wxBitmap::LoadFile(const wxString& filename, long type) |
| 1065 | { |
| 1066 | UnRef(); |
| 1067 | |
| 1068 | wxBitmapHandler *handler = wxDynamicCast(FindHandler(type), wxBitmapHandler); |
| 1069 | |
| 1070 | if ( handler ) |
| 1071 | { |
| 1072 | m_refData = new wxBitmapRefData; |
| 1073 | |
| 1074 | return handler->LoadFile(this, filename, type, -1, -1); |
| 1075 | } |
| 1076 | #if wxUSE_IMAGE |
| 1077 | else |
| 1078 | { |
| 1079 | wxImage image; |
| 1080 | if ( image.LoadFile( filename, type ) && image.Ok() ) |
| 1081 | { |
| 1082 | *this = wxBitmap(image); |
| 1083 | |
| 1084 | return TRUE; |
| 1085 | } |
| 1086 | } |
| 1087 | #endif // wxUSE_IMAGE |
| 1088 | |
| 1089 | return FALSE; |
| 1090 | } |
| 1091 | |
| 1092 | bool wxBitmap::Create(void *data, long type, int width, int height, int depth) |
| 1093 | { |
| 1094 | UnRef(); |
| 1095 | |
| 1096 | wxBitmapHandler *handler = wxDynamicCast(FindHandler(type), wxBitmapHandler); |
| 1097 | |
| 1098 | if ( !handler ) |
| 1099 | { |
| 1100 | wxLogDebug(wxT("Failed to create bitmap: no bitmap handler for type %ld defined."), type); |
| 1101 | |
| 1102 | return FALSE; |
| 1103 | } |
| 1104 | |
| 1105 | m_refData = new wxBitmapRefData; |
| 1106 | |
| 1107 | return handler->Create(this, data, type, width, height, depth); |
| 1108 | } |
| 1109 | |
| 1110 | bool wxBitmap::SaveFile(const wxString& filename, |
| 1111 | int type, |
| 1112 | const wxPalette *palette) |
| 1113 | { |
| 1114 | wxBitmapHandler *handler = wxDynamicCast(FindHandler(type), wxBitmapHandler); |
| 1115 | |
| 1116 | if ( handler ) |
| 1117 | { |
| 1118 | return handler->SaveFile(this, filename, type, palette); |
| 1119 | } |
| 1120 | #if wxUSE_IMAGE |
| 1121 | else |
| 1122 | { |
| 1123 | // FIXME what about palette? shouldn't we use it? |
| 1124 | wxImage image = ConvertToImage(); |
| 1125 | if ( image.Ok() ) |
| 1126 | { |
| 1127 | return image.SaveFile(filename, type); |
| 1128 | } |
| 1129 | } |
| 1130 | #endif // wxUSE_IMAGE |
| 1131 | |
| 1132 | return FALSE; |
| 1133 | } |
| 1134 | |
| 1135 | // ---------------------------------------------------------------------------- |
| 1136 | // sub bitmap extraction |
| 1137 | // ---------------------------------------------------------------------------- |
| 1138 | |
| 1139 | wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const |
| 1140 | { |
| 1141 | wxCHECK_MSG( Ok() && |
| 1142 | (rect.x >= 0) && (rect.y >= 0) && |
| 1143 | (rect.x+rect.width <= GetWidth()) && |
| 1144 | (rect.y+rect.height <= GetHeight()), |
| 1145 | wxNullBitmap, wxT("Invalid bitmap or bitmap region") ); |
| 1146 | |
| 1147 | wxBitmap ret( rect.width, rect.height, GetDepth() ); |
| 1148 | wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") ); |
| 1149 | |
| 1150 | #ifndef __WXMICROWIN__ |
| 1151 | // copy bitmap data |
| 1152 | MemoryHDC dcSrc, dcDst; |
| 1153 | |
| 1154 | { |
| 1155 | SelectInHDC selectSrc(dcSrc, GetHbitmap()), |
| 1156 | selectDst(dcDst, GetHbitmapOf(ret)); |
| 1157 | |
| 1158 | if ( !::BitBlt(dcDst, 0, 0, rect.width, rect.height, |
| 1159 | dcSrc, rect.x, rect.y, SRCCOPY) ) |
| 1160 | { |
| 1161 | wxLogLastError(_T("BitBlt")); |
| 1162 | } |
| 1163 | } |
| 1164 | |
| 1165 | // copy mask if there is one |
| 1166 | if ( GetMask() ) |
| 1167 | { |
| 1168 | HBITMAP hbmpMask = ::CreateBitmap(rect.width, rect.height, 1, 1, 0); |
| 1169 | |
| 1170 | SelectInHDC selectSrc(dcSrc, (HBITMAP) GetMask()->GetMaskBitmap()), |
| 1171 | selectDst(dcDst, hbmpMask); |
| 1172 | |
| 1173 | if ( !::BitBlt(dcDst, 0, 0, rect.width, rect.height, |
| 1174 | dcSrc, rect.x, rect.y, SRCCOPY) ) |
| 1175 | { |
| 1176 | wxLogLastError(_T("BitBlt")); |
| 1177 | } |
| 1178 | |
| 1179 | wxMask *mask = new wxMask((WXHBITMAP) hbmpMask); |
| 1180 | ret.SetMask(mask); |
| 1181 | } |
| 1182 | #endif // !__WXMICROWIN__ |
| 1183 | |
| 1184 | return ret; |
| 1185 | } |
| 1186 | |
| 1187 | // ---------------------------------------------------------------------------- |
| 1188 | // wxBitmap accessors |
| 1189 | // ---------------------------------------------------------------------------- |
| 1190 | |
| 1191 | void wxBitmap::SetQuality(int q) |
| 1192 | { |
| 1193 | EnsureHasData(); |
| 1194 | |
| 1195 | GetBitmapData()->m_quality = q; |
| 1196 | } |
| 1197 | |
| 1198 | #if WXWIN_COMPATIBILITY_2 |
| 1199 | void wxBitmap::SetOk(bool isOk) |
| 1200 | { |
| 1201 | EnsureHasData(); |
| 1202 | |
| 1203 | GetBitmapData()->m_ok = isOk; |
| 1204 | } |
| 1205 | #endif // WXWIN_COMPATIBILITY_2 |
| 1206 | |
| 1207 | #if wxUSE_PALETTE |
| 1208 | |
| 1209 | void wxBitmap::SetPalette(const wxPalette& palette) |
| 1210 | { |
| 1211 | EnsureHasData(); |
| 1212 | |
| 1213 | GetBitmapData()->m_bitmapPalette = palette; |
| 1214 | } |
| 1215 | |
| 1216 | #endif // wxUSE_PALETTE |
| 1217 | |
| 1218 | void wxBitmap::SetMask(wxMask *mask) |
| 1219 | { |
| 1220 | EnsureHasData(); |
| 1221 | |
| 1222 | GetBitmapData()->m_bitmapMask = mask; |
| 1223 | } |
| 1224 | |
| 1225 | // Creates a bitmap that matches the device context, from |
| 1226 | // an arbitray bitmap. At present, the original bitmap must have an |
| 1227 | // associated palette. TODO: use a default palette if no palette exists. |
| 1228 | // Contributed by Frederic Villeneuve <frederic.villeneuve@natinst.com> |
| 1229 | wxBitmap wxBitmap::GetBitmapForDC(wxDC& dc) const |
| 1230 | { |
| 1231 | #ifdef __WXMICROWIN__ |
| 1232 | return *this; |
| 1233 | #else |
| 1234 | wxMemoryDC memDC; |
| 1235 | wxBitmap tmpBitmap(GetWidth(), GetHeight(), dc.GetDepth()); |
| 1236 | HPALETTE hPal = (HPALETTE) NULL; |
| 1237 | LPBITMAPINFO lpDib; |
| 1238 | void *lpBits = (void*) NULL; |
| 1239 | |
| 1240 | #if wxUSE_PALETTE |
| 1241 | if( GetPalette() && GetPalette()->Ok() ) |
| 1242 | { |
| 1243 | tmpBitmap.SetPalette(*GetPalette()); |
| 1244 | memDC.SelectObject(tmpBitmap); |
| 1245 | memDC.SetPalette(*GetPalette()); |
| 1246 | hPal = (HPALETTE)GetPalette()->GetHPALETTE(); |
| 1247 | } |
| 1248 | else |
| 1249 | { |
| 1250 | hPal = (HPALETTE) ::GetStockObject(DEFAULT_PALETTE); |
| 1251 | wxPalette palette; |
| 1252 | palette.SetHPALETTE( (WXHPALETTE)hPal ); |
| 1253 | tmpBitmap.SetPalette( palette ); |
| 1254 | memDC.SelectObject(tmpBitmap); |
| 1255 | memDC.SetPalette( palette ); |
| 1256 | } |
| 1257 | #else // !wxUSE_PALETTE |
| 1258 | hPal = (HPALETTE) ::GetStockObject(DEFAULT_PALETTE); |
| 1259 | #endif // wxUSE_PALETTE/!wxUSE_PALETTE |
| 1260 | |
| 1261 | // set the height negative because in a DIB the order of the lines is |
| 1262 | // reversed |
| 1263 | if ( !wxCreateDIB(GetWidth(), -GetHeight(), GetDepth(), hPal, &lpDib) ) |
| 1264 | { |
| 1265 | return wxNullBitmap; |
| 1266 | } |
| 1267 | |
| 1268 | lpBits = malloc(lpDib->bmiHeader.biSizeImage); |
| 1269 | |
| 1270 | ::GetBitmapBits(GetHbitmap(), lpDib->bmiHeader.biSizeImage, lpBits); |
| 1271 | |
| 1272 | ::SetDIBitsToDevice(GetHdcOf(memDC), 0, 0, |
| 1273 | GetWidth(), GetHeight(), |
| 1274 | 0, 0, 0, GetHeight(), |
| 1275 | lpBits, lpDib, DIB_RGB_COLORS); |
| 1276 | |
| 1277 | free(lpBits); |
| 1278 | |
| 1279 | wxFreeDIB(lpDib); |
| 1280 | |
| 1281 | return tmpBitmap; |
| 1282 | #endif |
| 1283 | } |
| 1284 | |
| 1285 | // ---------------------------------------------------------------------------- |
| 1286 | // wxMask |
| 1287 | // ---------------------------------------------------------------------------- |
| 1288 | |
| 1289 | wxMask::wxMask() |
| 1290 | { |
| 1291 | m_maskBitmap = 0; |
| 1292 | } |
| 1293 | |
| 1294 | // Construct a mask from a bitmap and a colour indicating |
| 1295 | // the transparent area |
| 1296 | wxMask::wxMask(const wxBitmap& bitmap, const wxColour& colour) |
| 1297 | { |
| 1298 | m_maskBitmap = 0; |
| 1299 | Create(bitmap, colour); |
| 1300 | } |
| 1301 | |
| 1302 | // Construct a mask from a bitmap and a palette index indicating |
| 1303 | // the transparent area |
| 1304 | wxMask::wxMask(const wxBitmap& bitmap, int paletteIndex) |
| 1305 | { |
| 1306 | m_maskBitmap = 0; |
| 1307 | Create(bitmap, paletteIndex); |
| 1308 | } |
| 1309 | |
| 1310 | // Construct a mask from a mono bitmap (copies the bitmap). |
| 1311 | wxMask::wxMask(const wxBitmap& bitmap) |
| 1312 | { |
| 1313 | m_maskBitmap = 0; |
| 1314 | Create(bitmap); |
| 1315 | } |
| 1316 | |
| 1317 | wxMask::~wxMask() |
| 1318 | { |
| 1319 | if ( m_maskBitmap ) |
| 1320 | ::DeleteObject((HBITMAP) m_maskBitmap); |
| 1321 | } |
| 1322 | |
| 1323 | // Create a mask from a mono bitmap (copies the bitmap). |
| 1324 | bool wxMask::Create(const wxBitmap& bitmap) |
| 1325 | { |
| 1326 | #ifndef __WXMICROWIN__ |
| 1327 | wxCHECK_MSG( bitmap.Ok() && bitmap.GetDepth() == 1, FALSE, |
| 1328 | _T("can't create mask from invalid or not monochrome bitmap") ); |
| 1329 | |
| 1330 | if ( m_maskBitmap ) |
| 1331 | { |
| 1332 | ::DeleteObject((HBITMAP) m_maskBitmap); |
| 1333 | m_maskBitmap = 0; |
| 1334 | } |
| 1335 | |
| 1336 | m_maskBitmap = (WXHBITMAP) CreateBitmap( |
| 1337 | bitmap.GetWidth(), |
| 1338 | bitmap.GetHeight(), |
| 1339 | 1, 1, 0 |
| 1340 | ); |
| 1341 | HDC srcDC = CreateCompatibleDC(0); |
| 1342 | SelectObject(srcDC, (HBITMAP) bitmap.GetHBITMAP()); |
| 1343 | HDC destDC = CreateCompatibleDC(0); |
| 1344 | SelectObject(destDC, (HBITMAP) m_maskBitmap); |
| 1345 | BitBlt(destDC, 0, 0, bitmap.GetWidth(), bitmap.GetHeight(), srcDC, 0, 0, SRCCOPY); |
| 1346 | SelectObject(srcDC, 0); |
| 1347 | DeleteDC(srcDC); |
| 1348 | SelectObject(destDC, 0); |
| 1349 | DeleteDC(destDC); |
| 1350 | return TRUE; |
| 1351 | #else |
| 1352 | return FALSE; |
| 1353 | #endif |
| 1354 | } |
| 1355 | |
| 1356 | // Create a mask from a bitmap and a palette index indicating |
| 1357 | // the transparent area |
| 1358 | bool wxMask::Create(const wxBitmap& bitmap, int paletteIndex) |
| 1359 | { |
| 1360 | if ( m_maskBitmap ) |
| 1361 | { |
| 1362 | ::DeleteObject((HBITMAP) m_maskBitmap); |
| 1363 | m_maskBitmap = 0; |
| 1364 | } |
| 1365 | |
| 1366 | #if wxUSE_PALETTE |
| 1367 | if (bitmap.Ok() && bitmap.GetPalette()->Ok()) |
| 1368 | { |
| 1369 | unsigned char red, green, blue; |
| 1370 | if (bitmap.GetPalette()->GetRGB(paletteIndex, &red, &green, &blue)) |
| 1371 | { |
| 1372 | wxColour transparentColour(red, green, blue); |
| 1373 | return Create(bitmap, transparentColour); |
| 1374 | } |
| 1375 | } |
| 1376 | #endif // wxUSE_PALETTE |
| 1377 | |
| 1378 | return FALSE; |
| 1379 | } |
| 1380 | |
| 1381 | // Create a mask from a bitmap and a colour indicating |
| 1382 | // the transparent area |
| 1383 | bool wxMask::Create(const wxBitmap& bitmap, const wxColour& colour) |
| 1384 | { |
| 1385 | #ifndef __WXMICROWIN__ |
| 1386 | wxCHECK_MSG( bitmap.Ok(), FALSE, _T("invalid bitmap in wxMask::Create") ); |
| 1387 | |
| 1388 | if ( m_maskBitmap ) |
| 1389 | { |
| 1390 | ::DeleteObject((HBITMAP) m_maskBitmap); |
| 1391 | m_maskBitmap = 0; |
| 1392 | } |
| 1393 | |
| 1394 | int width = bitmap.GetWidth(), |
| 1395 | height = bitmap.GetHeight(); |
| 1396 | |
| 1397 | // scan the bitmap for the transparent colour and set the corresponding |
| 1398 | // pixels in the mask to BLACK and the rest to WHITE |
| 1399 | COLORREF maskColour = wxColourToPalRGB(colour); |
| 1400 | m_maskBitmap = (WXHBITMAP)::CreateBitmap(width, height, 1, 1, 0); |
| 1401 | |
| 1402 | HDC srcDC = ::CreateCompatibleDC(NULL); |
| 1403 | HDC destDC = ::CreateCompatibleDC(NULL); |
| 1404 | if ( !srcDC || !destDC ) |
| 1405 | { |
| 1406 | wxLogLastError(wxT("CreateCompatibleDC")); |
| 1407 | } |
| 1408 | |
| 1409 | bool ok = TRUE; |
| 1410 | |
| 1411 | // SelectObject() will fail |
| 1412 | wxASSERT_MSG( !bitmap.GetSelectedInto(), |
| 1413 | _T("bitmap can't be selected in another DC") ); |
| 1414 | |
| 1415 | HGDIOBJ hbmpSrcOld = ::SelectObject(srcDC, GetHbitmapOf(bitmap)); |
| 1416 | if ( !hbmpSrcOld ) |
| 1417 | { |
| 1418 | wxLogLastError(wxT("SelectObject")); |
| 1419 | |
| 1420 | ok = FALSE; |
| 1421 | } |
| 1422 | |
| 1423 | HGDIOBJ hbmpDstOld = ::SelectObject(destDC, (HBITMAP)m_maskBitmap); |
| 1424 | if ( !hbmpDstOld ) |
| 1425 | { |
| 1426 | wxLogLastError(wxT("SelectObject")); |
| 1427 | |
| 1428 | ok = FALSE; |
| 1429 | } |
| 1430 | |
| 1431 | if ( ok ) |
| 1432 | { |
| 1433 | // this will create a monochrome bitmap with 0 points for the pixels |
| 1434 | // which have the same value as the background colour and 1 for the |
| 1435 | // others |
| 1436 | ::SetBkColor(srcDC, maskColour); |
| 1437 | ::BitBlt(destDC, 0, 0, width, height, srcDC, 0, 0, NOTSRCCOPY); |
| 1438 | } |
| 1439 | |
| 1440 | ::SelectObject(srcDC, hbmpSrcOld); |
| 1441 | ::DeleteDC(srcDC); |
| 1442 | ::SelectObject(destDC, hbmpDstOld); |
| 1443 | ::DeleteDC(destDC); |
| 1444 | |
| 1445 | return ok; |
| 1446 | #else // __WXMICROWIN__ |
| 1447 | return FALSE; |
| 1448 | #endif // __WXMICROWIN__/!__WXMICROWIN__ |
| 1449 | } |
| 1450 | |
| 1451 | // ---------------------------------------------------------------------------- |
| 1452 | // wxBitmapHandler |
| 1453 | // ---------------------------------------------------------------------------- |
| 1454 | |
| 1455 | bool wxBitmapHandler::Create(wxGDIImage *image, |
| 1456 | void *data, |
| 1457 | long flags, |
| 1458 | int width, int height, int depth) |
| 1459 | { |
| 1460 | wxBitmap *bitmap = wxDynamicCast(image, wxBitmap); |
| 1461 | |
| 1462 | return bitmap ? Create(bitmap, data, flags, width, height, depth) : FALSE; |
| 1463 | } |
| 1464 | |
| 1465 | bool wxBitmapHandler::Load(wxGDIImage *image, |
| 1466 | const wxString& name, |
| 1467 | long flags, |
| 1468 | int width, int height) |
| 1469 | { |
| 1470 | wxBitmap *bitmap = wxDynamicCast(image, wxBitmap); |
| 1471 | |
| 1472 | return bitmap ? LoadFile(bitmap, name, flags, width, height) : FALSE; |
| 1473 | } |
| 1474 | |
| 1475 | bool wxBitmapHandler::Save(wxGDIImage *image, |
| 1476 | const wxString& name, |
| 1477 | int type) |
| 1478 | { |
| 1479 | wxBitmap *bitmap = wxDynamicCast(image, wxBitmap); |
| 1480 | |
| 1481 | return bitmap ? SaveFile(bitmap, name, type) : FALSE; |
| 1482 | } |
| 1483 | |
| 1484 | bool wxBitmapHandler::Create(wxBitmap *WXUNUSED(bitmap), |
| 1485 | void *WXUNUSED(data), |
| 1486 | long WXUNUSED(type), |
| 1487 | int WXUNUSED(width), |
| 1488 | int WXUNUSED(height), |
| 1489 | int WXUNUSED(depth)) |
| 1490 | { |
| 1491 | return FALSE; |
| 1492 | } |
| 1493 | |
| 1494 | bool wxBitmapHandler::LoadFile(wxBitmap *WXUNUSED(bitmap), |
| 1495 | const wxString& WXUNUSED(name), |
| 1496 | long WXUNUSED(type), |
| 1497 | int WXUNUSED(desiredWidth), |
| 1498 | int WXUNUSED(desiredHeight)) |
| 1499 | { |
| 1500 | return FALSE; |
| 1501 | } |
| 1502 | |
| 1503 | bool wxBitmapHandler::SaveFile(wxBitmap *WXUNUSED(bitmap), |
| 1504 | const wxString& WXUNUSED(name), |
| 1505 | int WXUNUSED(type), |
| 1506 | const wxPalette *WXUNUSED(palette)) |
| 1507 | { |
| 1508 | return FALSE; |
| 1509 | } |
| 1510 | |
| 1511 | // ---------------------------------------------------------------------------- |
| 1512 | // DIB functions |
| 1513 | // ---------------------------------------------------------------------------- |
| 1514 | |
| 1515 | #ifndef __WXMICROWIN__ |
| 1516 | bool wxCreateDIB(long xSize, long ySize, long bitsPerPixel, |
| 1517 | HPALETTE hPal, LPBITMAPINFO* lpDIBHeader) |
| 1518 | { |
| 1519 | unsigned long i, headerSize; |
| 1520 | LPBITMAPINFO lpDIBheader = NULL; |
| 1521 | LPPALETTEENTRY lpPe = NULL; |
| 1522 | |
| 1523 | |
| 1524 | // Allocate space for a DIB header |
| 1525 | headerSize = (sizeof(BITMAPINFOHEADER) + (256 * sizeof(PALETTEENTRY))); |
| 1526 | lpDIBheader = (BITMAPINFO *) malloc(headerSize); |
| 1527 | lpPe = (PALETTEENTRY *)((BYTE*)lpDIBheader + sizeof(BITMAPINFOHEADER)); |
| 1528 | |
| 1529 | GetPaletteEntries(hPal, 0, 256, lpPe); |
| 1530 | |
| 1531 | memset(lpDIBheader, 0x00, sizeof(BITMAPINFOHEADER)); |
| 1532 | |
| 1533 | // Fill in the static parts of the DIB header |
| 1534 | lpDIBheader->bmiHeader.biSize = sizeof(BITMAPINFOHEADER); |
| 1535 | lpDIBheader->bmiHeader.biWidth = xSize; |
| 1536 | lpDIBheader->bmiHeader.biHeight = ySize; |
| 1537 | lpDIBheader->bmiHeader.biPlanes = 1; |
| 1538 | |
| 1539 | // this value must be 1, 4, 8 or 24 so PixelDepth can only be |
| 1540 | lpDIBheader->bmiHeader.biBitCount = (WORD)(bitsPerPixel); |
| 1541 | lpDIBheader->bmiHeader.biCompression = BI_RGB; |
| 1542 | lpDIBheader->bmiHeader.biSizeImage = xSize * abs(ySize) * bitsPerPixel >> 3; |
| 1543 | lpDIBheader->bmiHeader.biClrUsed = 256; |
| 1544 | |
| 1545 | |
| 1546 | // Initialize the DIB palette |
| 1547 | for (i = 0; i < 256; i++) { |
| 1548 | lpDIBheader->bmiColors[i].rgbReserved = lpPe[i].peFlags; |
| 1549 | lpDIBheader->bmiColors[i].rgbRed = lpPe[i].peRed; |
| 1550 | lpDIBheader->bmiColors[i].rgbGreen = lpPe[i].peGreen; |
| 1551 | lpDIBheader->bmiColors[i].rgbBlue = lpPe[i].peBlue; |
| 1552 | } |
| 1553 | |
| 1554 | *lpDIBHeader = lpDIBheader; |
| 1555 | |
| 1556 | return TRUE; |
| 1557 | } |
| 1558 | |
| 1559 | void wxFreeDIB(LPBITMAPINFO lpDIBHeader) |
| 1560 | { |
| 1561 | free(lpDIBHeader); |
| 1562 | } |
| 1563 | #endif |
| 1564 | |
| 1565 | // ---------------------------------------------------------------------------- |
| 1566 | // other helper functions |
| 1567 | // ---------------------------------------------------------------------------- |
| 1568 | |
| 1569 | extern HBITMAP wxInvertMask(HBITMAP hbmpMask, int w, int h) |
| 1570 | { |
| 1571 | #ifndef __WXMICROWIN__ |
| 1572 | wxCHECK_MSG( hbmpMask, 0, _T("invalid bitmap in wxInvertMask") ); |
| 1573 | |
| 1574 | // get width/height from the bitmap if not given |
| 1575 | if ( !w || !h ) |
| 1576 | { |
| 1577 | BITMAP bm; |
| 1578 | ::GetObject(hbmpMask, sizeof(BITMAP), (LPVOID)&bm); |
| 1579 | w = bm.bmWidth; |
| 1580 | h = bm.bmHeight; |
| 1581 | } |
| 1582 | |
| 1583 | HDC hdcSrc = ::CreateCompatibleDC(NULL); |
| 1584 | HDC hdcDst = ::CreateCompatibleDC(NULL); |
| 1585 | if ( !hdcSrc || !hdcDst ) |
| 1586 | { |
| 1587 | wxLogLastError(wxT("CreateCompatibleDC")); |
| 1588 | } |
| 1589 | |
| 1590 | HBITMAP hbmpInvMask = ::CreateBitmap(w, h, 1, 1, 0); |
| 1591 | if ( !hbmpInvMask ) |
| 1592 | { |
| 1593 | wxLogLastError(wxT("CreateBitmap")); |
| 1594 | } |
| 1595 | |
| 1596 | ::SelectObject(hdcSrc, hbmpMask); |
| 1597 | ::SelectObject(hdcDst, hbmpInvMask); |
| 1598 | if ( !::BitBlt(hdcDst, 0, 0, w, h, |
| 1599 | hdcSrc, 0, 0, |
| 1600 | NOTSRCCOPY) ) |
| 1601 | { |
| 1602 | wxLogLastError(wxT("BitBlt")); |
| 1603 | } |
| 1604 | |
| 1605 | ::DeleteDC(hdcSrc); |
| 1606 | ::DeleteDC(hdcDst); |
| 1607 | |
| 1608 | return hbmpInvMask; |
| 1609 | #else |
| 1610 | return 0; |
| 1611 | #endif |
| 1612 | } |