1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 24 // MARKER(update_precomp.py): autogen include statement, do not remove 25 #include "precompiled_vcl.hxx" 26 27 #include <ctype.h> 28 29 #include <rtl/crc.h> 30 31 #include <tools/stream.hxx> 32 #include <tools/debug.hxx> 33 #include <tools/rc.h> 34 35 #include <vcl/salbtype.hxx> 36 #include <vcl/outdev.hxx> 37 #include <vcl/alpha.hxx> 38 #include <vcl/bitmapex.hxx> 39 #include <vcl/pngread.hxx> 40 #include <vcl/svapp.hxx> 41 #include <vcl/bmpacc.hxx> 42 43 #include <image.h> 44 #include <impimagetree.hxx> 45 46 // ------------ 47 // - BitmapEx - 48 // ------------ 49 50 BitmapEx::BitmapEx() : 51 eTransparent( TRANSPARENT_NONE ), 52 bAlpha ( sal_False ) 53 { 54 } 55 56 // ------------------------------------------------------------------ 57 58 BitmapEx::BitmapEx( const BitmapEx& rBitmapEx ) : 59 aBitmap ( rBitmapEx.aBitmap ), 60 aMask ( rBitmapEx.aMask ), 61 aBitmapSize ( rBitmapEx.aBitmapSize ), 62 aTransparentColor ( rBitmapEx.aTransparentColor ), 63 eTransparent ( rBitmapEx.eTransparent ), 64 bAlpha ( rBitmapEx.bAlpha ) 65 { 66 } 67 68 BitmapEx::BitmapEx( const BitmapEx& rBitmapEx, Point aSrc, Size aSize ) : 69 eTransparent( TRANSPARENT_NONE ), 70 bAlpha ( sal_False ) 71 { 72 if( rBitmapEx.IsEmpty() ) 73 return; 74 75 aBitmap = Bitmap( aSize, rBitmapEx.aBitmap.GetBitCount() ); 76 aBitmapSize = aSize; 77 if( rBitmapEx.IsAlpha() ) 78 { 79 bAlpha = sal_True; 80 aMask = AlphaMask( aSize ).ImplGetBitmap(); 81 } 82 else if( rBitmapEx.IsTransparent() ) 83 aMask = Bitmap( aSize, rBitmapEx.aMask.GetBitCount() ); 84 85 Rectangle aDestRect( Point( 0, 0 ), aSize ); 86 Rectangle aSrcRect( aSrc, aSize ); 87 CopyPixel( aDestRect, aSrcRect, &rBitmapEx ); 88 } 89 90 // ------------------------------------------------------------------ 91 92 BitmapEx::BitmapEx( const ResId& rResId ) : 93 eTransparent( TRANSPARENT_NONE ), 94 bAlpha ( sal_False ) 95 { 96 static ImplImageTreeSingletonRef aImageTree; 97 ResMgr* pResMgr = NULL; 98 99 ResMgr::GetResourceSkipHeader( rResId.SetRT( RSC_BITMAP ), &pResMgr ); 100 pResMgr->ReadLong(); 101 pResMgr->ReadLong(); 102 103 const String aFileName( pResMgr->ReadString() ); 104 ::rtl::OUString aCurrentSymbolsStyle = Application::GetSettings().GetStyleSettings().GetCurrentSymbolsStyleName(); 105 106 if( !aImageTree->loadImage( aFileName, aCurrentSymbolsStyle, *this ) ) 107 { 108 #ifdef DBG_UTIL 109 ByteString aErrorStr( "BitmapEx::BitmapEx( const ResId& rResId ): could not load image <" ); 110 DBG_ERROR( ( ( aErrorStr += ByteString( aFileName, RTL_TEXTENCODING_ASCII_US ) ) += '>' ).GetBuffer() ); 111 #endif 112 } 113 } 114 115 // ------------------------------------------------------------------ 116 117 BitmapEx::BitmapEx( const Bitmap& rBmp ) : 118 aBitmap ( rBmp ), 119 aBitmapSize ( aBitmap.GetSizePixel() ), 120 eTransparent( TRANSPARENT_NONE ), 121 bAlpha ( sal_False ) 122 { 123 } 124 125 // ------------------------------------------------------------------ 126 127 BitmapEx::BitmapEx( const Bitmap& rBmp, const Bitmap& rMask ) : 128 aBitmap ( rBmp ), 129 aMask ( rMask ), 130 aBitmapSize ( aBitmap.GetSizePixel() ), 131 eTransparent ( !rMask ? TRANSPARENT_NONE : TRANSPARENT_BITMAP ), 132 bAlpha ( sal_False ) 133 { 134 if(!!aBitmap && !!aMask && aBitmap.GetSizePixel() != aMask.GetSizePixel()) 135 { 136 OSL_ENSURE(false, "Mask size differs from Bitmap size, corrected Mask (!)"); 137 aMask.Scale(aBitmap.GetSizePixel()); 138 } 139 140 // #105489# Ensure a mask is exactly one bit deep 141 if( !!aMask && aMask.GetBitCount() != 1 ) 142 { 143 OSL_TRACE("BitmapEx: forced mask to monochrome"); 144 aMask.ImplMakeMono( 255 ); 145 } 146 } 147 148 // ------------------------------------------------------------------ 149 150 BitmapEx::BitmapEx( const Bitmap& rBmp, const AlphaMask& rAlphaMask ) : 151 aBitmap ( rBmp ), 152 aMask ( rAlphaMask.ImplGetBitmap() ), 153 aBitmapSize ( aBitmap.GetSizePixel() ), 154 eTransparent ( !rAlphaMask ? TRANSPARENT_NONE : TRANSPARENT_BITMAP ), 155 bAlpha ( !rAlphaMask ? sal_False : sal_True ) 156 { 157 if(!!aBitmap && !!aMask && aBitmap.GetSizePixel() != aMask.GetSizePixel()) 158 { 159 OSL_ENSURE(false, "Alpha size differs from Bitmap size, corrected Mask (!)"); 160 aMask.Scale(rBmp.GetSizePixel()); 161 } 162 163 // #i75531# the workaround below can go when 164 // X11SalGraphics::drawAlphaBitmap()'s render acceleration 165 // can handle the bitmap depth mismatch directly 166 if( aBitmap.GetBitCount() < aMask.GetBitCount() ) 167 aBitmap.Convert( BMP_CONVERSION_24BIT ); 168 } 169 170 // ------------------------------------------------------------------ 171 172 BitmapEx::BitmapEx( const Bitmap& rBmp, const Color& rTransparentColor ) : 173 aBitmap ( rBmp ), 174 aBitmapSize ( aBitmap.GetSizePixel() ), 175 aTransparentColor ( rTransparentColor ), 176 eTransparent ( TRANSPARENT_BITMAP ), 177 bAlpha ( sal_False ) 178 { 179 aMask = aBitmap.CreateMask( aTransparentColor ); 180 181 DBG_ASSERT( rBmp.GetSizePixel() == aMask.GetSizePixel(), 182 "BitmapEx::BitmapEx(): size mismatch for bitmap and alpha mask." ); 183 } 184 185 // ------------------------------------------------------------------ 186 187 BitmapEx::~BitmapEx() 188 { 189 } 190 191 // ------------------------------------------------------------------ 192 193 // ------------------------------------------------------------------ 194 195 BitmapEx& BitmapEx::operator=( const BitmapEx& rBitmapEx ) 196 { 197 if( &rBitmapEx != this ) 198 { 199 aBitmap = rBitmapEx.aBitmap; 200 aMask = rBitmapEx.aMask; 201 aBitmapSize = rBitmapEx.aBitmapSize; 202 aTransparentColor = rBitmapEx.aTransparentColor; 203 eTransparent = rBitmapEx.eTransparent; 204 bAlpha = rBitmapEx.bAlpha; 205 } 206 207 return *this; 208 } 209 210 // ------------------------------------------------------------------ 211 212 sal_Bool BitmapEx::operator==( const BitmapEx& rBitmapEx ) const 213 { 214 if( eTransparent != rBitmapEx.eTransparent ) 215 return sal_False; 216 217 if( aBitmap != rBitmapEx.aBitmap ) 218 return sal_False; 219 220 if( aBitmapSize != rBitmapEx.aBitmapSize ) 221 return sal_False; 222 223 if( eTransparent == TRANSPARENT_NONE ) 224 return sal_True; 225 226 if( eTransparent == TRANSPARENT_COLOR ) 227 return aTransparentColor == rBitmapEx.aTransparentColor; 228 229 return( ( aMask == rBitmapEx.aMask ) && ( bAlpha == rBitmapEx.bAlpha ) ); 230 } 231 232 // ------------------------------------------------------------------ 233 234 sal_Bool BitmapEx::IsEqual( const BitmapEx& rBmpEx ) const 235 { 236 return( rBmpEx.eTransparent == eTransparent && 237 rBmpEx.bAlpha == bAlpha && 238 rBmpEx.aBitmap.IsEqual( aBitmap ) && 239 rBmpEx.aMask.IsEqual( aMask ) ); 240 } 241 242 // ------------------------------------------------------------------ 243 244 sal_Bool BitmapEx::IsEmpty() const 245 { 246 return( aBitmap.IsEmpty() && aMask.IsEmpty() ); 247 } 248 249 // ------------------------------------------------------------------ 250 251 void BitmapEx::SetEmpty() 252 { 253 aBitmap.SetEmpty(); 254 aMask.SetEmpty(); 255 eTransparent = TRANSPARENT_NONE; 256 bAlpha = sal_False; 257 } 258 259 // ------------------------------------------------------------------ 260 261 void BitmapEx::Clear() 262 { 263 SetEmpty(); 264 } 265 266 // ------------------------------------------------------------------ 267 268 sal_Bool BitmapEx::IsTransparent() const 269 { 270 return( eTransparent != TRANSPARENT_NONE ); 271 } 272 273 // ------------------------------------------------------------------ 274 275 sal_Bool BitmapEx::IsAlpha() const 276 { 277 return( IsTransparent() && bAlpha ); 278 } 279 280 // ------------------------------------------------------------------ 281 282 Bitmap BitmapEx::GetBitmap( const Color* pTransReplaceColor ) const 283 { 284 Bitmap aRetBmp( aBitmap ); 285 286 if( pTransReplaceColor && ( eTransparent != TRANSPARENT_NONE ) ) 287 { 288 Bitmap aTempMask; 289 290 if( eTransparent == TRANSPARENT_COLOR ) 291 aTempMask = aBitmap.CreateMask( aTransparentColor ); 292 else 293 aTempMask = aMask; 294 295 if( !IsAlpha() ) 296 aRetBmp.Replace( aTempMask, *pTransReplaceColor ); 297 else 298 aRetBmp.Replace( GetAlpha(), *pTransReplaceColor ); 299 } 300 301 return aRetBmp; 302 } 303 304 // ------------------------------------------------------------------ 305 306 BitmapEx BitmapEx::GetColorTransformedBitmapEx( BmpColorMode eColorMode ) const 307 { 308 BitmapEx aRet; 309 310 if( BMP_COLOR_HIGHCONTRAST == eColorMode ) 311 { 312 aRet = *this; 313 aRet.aBitmap = aBitmap.GetColorTransformedBitmap( eColorMode ); 314 } 315 else if( BMP_COLOR_MONOCHROME_BLACK == eColorMode || 316 BMP_COLOR_MONOCHROME_WHITE == eColorMode ) 317 { 318 aRet = *this; 319 aRet.aBitmap = aRet.aBitmap.GetColorTransformedBitmap( eColorMode ); 320 321 if( !aRet.aMask.IsEmpty() ) 322 { 323 aRet.aMask.CombineSimple( aRet.aBitmap, BMP_COMBINE_OR ); 324 aRet.aBitmap.Erase( ( BMP_COLOR_MONOCHROME_BLACK == eColorMode ) ? COL_BLACK : COL_WHITE ); 325 326 DBG_ASSERT( aRet.aBitmap.GetSizePixel() == aRet.aMask.GetSizePixel(), 327 "BitmapEx::GetColorTransformedBitmapEx(): size mismatch for bitmap and alpha mask." ); 328 } 329 } 330 331 return aRet; 332 } 333 334 // ------------------------------------------------------------------ 335 336 Bitmap BitmapEx::GetMask() const 337 { 338 Bitmap aRet( aMask ); 339 340 if( IsAlpha() ) 341 aRet.ImplMakeMono( 255 ); 342 343 return aRet; 344 } 345 346 // ------------------------------------------------------------------ 347 348 AlphaMask BitmapEx::GetAlpha() const 349 { 350 AlphaMask aAlpha; 351 352 if( IsAlpha() ) 353 aAlpha.ImplSetBitmap( aMask ); 354 else 355 aAlpha = aMask; 356 357 return aAlpha; 358 } 359 360 // ------------------------------------------------------------------ 361 362 sal_uLong BitmapEx::GetSizeBytes() const 363 { 364 sal_uLong nSizeBytes = aBitmap.GetSizeBytes(); 365 366 if( eTransparent == TRANSPARENT_BITMAP ) 367 nSizeBytes += aMask.GetSizeBytes(); 368 369 return nSizeBytes; 370 } 371 372 // ------------------------------------------------------------------ 373 374 sal_uLong BitmapEx::GetChecksum() const 375 { 376 sal_uInt32 nCrc = aBitmap.GetChecksum(); 377 SVBT32 aBT32; 378 379 UInt32ToSVBT32( (long) eTransparent, aBT32 ); 380 nCrc = rtl_crc32( nCrc, aBT32, 4 ); 381 382 UInt32ToSVBT32( (long) bAlpha, aBT32 ); 383 nCrc = rtl_crc32( nCrc, aBT32, 4 ); 384 385 if( ( TRANSPARENT_BITMAP == eTransparent ) && !aMask.IsEmpty() ) 386 { 387 UInt32ToSVBT32( aMask.GetChecksum(), aBT32 ); 388 nCrc = rtl_crc32( nCrc, aBT32, 4 ); 389 } 390 391 return nCrc; 392 } 393 394 // ------------------------------------------------------------------ 395 396 void BitmapEx::SetSizePixel( const Size& rNewSize ) 397 { 398 Scale( rNewSize ); 399 } 400 401 // ------------------------------------------------------------------ 402 403 sal_Bool BitmapEx::Invert() 404 { 405 sal_Bool bRet = sal_False; 406 407 if( !!aBitmap ) 408 { 409 bRet = aBitmap.Invert(); 410 411 if( bRet && ( eTransparent == TRANSPARENT_COLOR ) ) 412 aTransparentColor = BitmapColor( aTransparentColor ).Invert(); 413 } 414 415 return bRet; 416 } 417 418 // ------------------------------------------------------------------ 419 420 sal_Bool BitmapEx::Mirror( sal_uLong nMirrorFlags ) 421 { 422 sal_Bool bRet = sal_False; 423 424 if( !!aBitmap ) 425 { 426 bRet = aBitmap.Mirror( nMirrorFlags ); 427 428 if( bRet && ( eTransparent == TRANSPARENT_BITMAP ) && !!aMask ) 429 aMask.Mirror( nMirrorFlags ); 430 } 431 432 return bRet; 433 } 434 435 // ------------------------------------------------------------------ 436 437 sal_Bool BitmapEx::Scale( const double& rScaleX, const double& rScaleY, sal_uLong nScaleFlag ) 438 { 439 sal_Bool bRet = sal_False; 440 441 if( !!aBitmap ) 442 { 443 bRet = aBitmap.Scale( rScaleX, rScaleY, nScaleFlag ); 444 445 if( bRet && ( eTransparent == TRANSPARENT_BITMAP ) && !!aMask ) 446 { 447 aMask.Scale( rScaleX, rScaleY, nScaleFlag ); 448 } 449 450 aBitmapSize = aBitmap.GetSizePixel(); 451 452 DBG_ASSERT( !aMask || aBitmap.GetSizePixel() == aMask.GetSizePixel(), 453 "BitmapEx::Scale(): size mismatch for bitmap and alpha mask." ); 454 } 455 456 return bRet; 457 } 458 459 // ------------------------------------------------------------------------ 460 461 sal_Bool BitmapEx::Scale( const Size& rNewSize, sal_uLong nScaleFlag ) 462 { 463 sal_Bool bRet; 464 465 if( aBitmapSize.Width() && aBitmapSize.Height() ) 466 { 467 bRet = Scale( (double) rNewSize.Width() / aBitmapSize.Width(), 468 (double) rNewSize.Height() / aBitmapSize.Height(), 469 nScaleFlag ); 470 } 471 else 472 bRet = sal_True; 473 474 return bRet; 475 } 476 477 // ------------------------------------------------------------------ 478 479 sal_Bool BitmapEx::Rotate( long nAngle10, const Color& rFillColor ) 480 { 481 sal_Bool bRet = sal_False; 482 483 if( !!aBitmap ) 484 { 485 const sal_Bool bTransRotate = ( Color( COL_TRANSPARENT ) == rFillColor ); 486 487 if( bTransRotate ) 488 { 489 if( eTransparent == TRANSPARENT_COLOR ) 490 bRet = aBitmap.Rotate( nAngle10, aTransparentColor ); 491 else 492 { 493 bRet = aBitmap.Rotate( nAngle10, COL_BLACK ); 494 495 if( eTransparent == TRANSPARENT_NONE ) 496 { 497 aMask = Bitmap( aBitmapSize, 1 ); 498 aMask.Erase( COL_BLACK ); 499 eTransparent = TRANSPARENT_BITMAP; 500 } 501 502 if( bRet && !!aMask ) 503 aMask.Rotate( nAngle10, COL_WHITE ); 504 } 505 } 506 else 507 { 508 bRet = aBitmap.Rotate( nAngle10, rFillColor ); 509 510 if( bRet && ( eTransparent == TRANSPARENT_BITMAP ) && !!aMask ) 511 aMask.Rotate( nAngle10, COL_WHITE ); 512 } 513 514 aBitmapSize = aBitmap.GetSizePixel(); 515 516 DBG_ASSERT( !aMask || aBitmap.GetSizePixel() == aMask.GetSizePixel(), 517 "BitmapEx::Rotate(): size mismatch for bitmap and alpha mask." ); 518 } 519 520 return bRet; 521 } 522 523 // ------------------------------------------------------------------ 524 525 sal_Bool BitmapEx::Crop( const Rectangle& rRectPixel ) 526 { 527 sal_Bool bRet = sal_False; 528 529 if( !!aBitmap ) 530 { 531 bRet = aBitmap.Crop( rRectPixel ); 532 533 if( bRet && ( eTransparent == TRANSPARENT_BITMAP ) && !!aMask ) 534 aMask.Crop( rRectPixel ); 535 536 aBitmapSize = aBitmap.GetSizePixel(); 537 538 DBG_ASSERT( !aMask || aBitmap.GetSizePixel() == aMask.GetSizePixel(), 539 "BitmapEx::Crop(): size mismatch for bitmap and alpha mask." ); 540 } 541 542 return bRet; 543 } 544 545 // ------------------------------------------------------------------ 546 547 sal_Bool BitmapEx::Convert( BmpConversion eConversion ) 548 { 549 return( !!aBitmap ? aBitmap.Convert( eConversion ) : sal_False ); 550 } 551 552 // ------------------------------------------------------------------ 553 554 sal_Bool BitmapEx::ReduceColors( sal_uInt16 nNewColorCount, BmpReduce eReduce ) 555 { 556 return( !!aBitmap ? aBitmap.ReduceColors( nNewColorCount, eReduce ) : sal_False ); 557 } 558 559 // ------------------------------------------------------------------ 560 561 sal_Bool BitmapEx::Expand( sal_uLong nDX, sal_uLong nDY, const Color* pInitColor, sal_Bool bExpandTransparent ) 562 { 563 sal_Bool bRet = sal_False; 564 565 if( !!aBitmap ) 566 { 567 bRet = aBitmap.Expand( nDX, nDY, pInitColor ); 568 569 if( bRet && ( eTransparent == TRANSPARENT_BITMAP ) && !!aMask ) 570 { 571 Color aColor( bExpandTransparent ? COL_WHITE : COL_BLACK ); 572 aMask.Expand( nDX, nDY, &aColor ); 573 } 574 575 aBitmapSize = aBitmap.GetSizePixel(); 576 577 DBG_ASSERT( !aMask || aBitmap.GetSizePixel() == aMask.GetSizePixel(), 578 "BitmapEx::Expand(): size mismatch for bitmap and alpha mask." ); 579 } 580 581 return bRet; 582 } 583 584 // ------------------------------------------------------------------ 585 586 sal_Bool BitmapEx::CopyPixel( const Rectangle& rRectDst, const Rectangle& rRectSrc, 587 const BitmapEx* pBmpExSrc ) 588 { 589 sal_Bool bRet = sal_False; 590 591 if( !pBmpExSrc || pBmpExSrc->IsEmpty() ) 592 { 593 if( !aBitmap.IsEmpty() ) 594 { 595 bRet = aBitmap.CopyPixel( rRectDst, rRectSrc ); 596 597 if( bRet && ( eTransparent == TRANSPARENT_BITMAP ) && !!aMask ) 598 aMask.CopyPixel( rRectDst, rRectSrc ); 599 } 600 } 601 else 602 { 603 if( !aBitmap.IsEmpty() ) 604 { 605 bRet = aBitmap.CopyPixel( rRectDst, rRectSrc, &pBmpExSrc->aBitmap ); 606 607 if( bRet ) 608 { 609 if( pBmpExSrc->IsAlpha() ) 610 { 611 if( IsAlpha() ) 612 // cast to use the optimized AlphaMask::CopyPixel 613 ((AlphaMask*) &aMask)->CopyPixel( rRectDst, rRectSrc, (AlphaMask*)&pBmpExSrc->aMask ); 614 else if( IsTransparent() ) 615 { 616 AlphaMask* pAlpha = new AlphaMask( aMask ); 617 618 aMask = pAlpha->ImplGetBitmap(); 619 delete pAlpha; 620 bAlpha = sal_True; 621 aMask.CopyPixel( rRectDst, rRectSrc, &pBmpExSrc->aMask ); 622 } 623 else 624 { 625 sal_uInt8 cBlack = 0; 626 AlphaMask* pAlpha = new AlphaMask( GetSizePixel(), &cBlack ); 627 628 aMask = pAlpha->ImplGetBitmap(); 629 delete pAlpha; 630 eTransparent = TRANSPARENT_BITMAP; 631 bAlpha = sal_True; 632 aMask.CopyPixel( rRectDst, rRectSrc, &pBmpExSrc->aMask ); 633 } 634 } 635 else if( pBmpExSrc->IsTransparent() ) 636 { 637 if( IsAlpha() ) 638 { 639 AlphaMask aAlpha( pBmpExSrc->aMask ); 640 aMask.CopyPixel( rRectDst, rRectSrc, &aAlpha.ImplGetBitmap() ); 641 } 642 else if( IsTransparent() ) 643 aMask.CopyPixel( rRectDst, rRectSrc, &pBmpExSrc->aMask ); 644 else 645 { 646 aMask = Bitmap( GetSizePixel(), 1 ); 647 aMask.Erase( Color( COL_BLACK ) ); 648 eTransparent = TRANSPARENT_BITMAP; 649 aMask.CopyPixel( rRectDst, rRectSrc, &pBmpExSrc->aMask ); 650 } 651 } 652 else if( IsAlpha() ) 653 { 654 sal_uInt8 cBlack = 0; 655 const AlphaMask aAlphaSrc( pBmpExSrc->GetSizePixel(), &cBlack ); 656 657 aMask.CopyPixel( rRectDst, rRectSrc, &aAlphaSrc.ImplGetBitmap() ); 658 } 659 else if( IsTransparent() ) 660 { 661 Bitmap aMaskSrc( pBmpExSrc->GetSizePixel(), 1 ); 662 663 aMaskSrc.Erase( Color( COL_BLACK ) ); 664 aMask.CopyPixel( rRectDst, rRectSrc, &aMaskSrc ); 665 } 666 } 667 } 668 } 669 670 return bRet; 671 } 672 673 // ------------------------------------------------------------------ 674 675 sal_Bool BitmapEx::Erase( const Color& rFillColor ) 676 { 677 sal_Bool bRet = sal_False; 678 679 if( !!aBitmap ) 680 { 681 bRet = aBitmap.Erase( rFillColor ); 682 683 if( bRet && ( eTransparent == TRANSPARENT_BITMAP ) && !!aMask ) 684 { 685 // #104416# Respect transparency on fill color 686 if( rFillColor.GetTransparency() ) 687 { 688 const Color aFill( rFillColor.GetTransparency(), rFillColor.GetTransparency(), rFillColor.GetTransparency() ); 689 aMask.Erase( aFill ); 690 } 691 else 692 { 693 const Color aBlack( COL_BLACK ); 694 aMask.Erase( aBlack ); 695 } 696 } 697 } 698 699 return bRet; 700 } 701 702 // ------------------------------------------------------------------ 703 704 sal_Bool BitmapEx::Dither( sal_uLong nDitherFlags ) 705 { 706 return( !!aBitmap ? aBitmap.Dither( nDitherFlags ) : sal_False ); 707 } 708 709 // ------------------------------------------------------------------ 710 711 sal_Bool BitmapEx::Replace( const Color& rSearchColor, const Color& rReplaceColor, sal_uLong nTol ) 712 { 713 return( !!aBitmap ? aBitmap.Replace( rSearchColor, rReplaceColor, nTol ) : sal_False ); 714 } 715 716 // ------------------------------------------------------------------ 717 718 sal_Bool BitmapEx::Replace( const Color* pSearchColors, const Color* pReplaceColors, sal_uLong nColorCount, const sal_uLong* pTols ) 719 { 720 return( !!aBitmap ? aBitmap.Replace( pSearchColors, pReplaceColors, nColorCount, (sal_uLong*) pTols ) : sal_False ); 721 } 722 723 // ------------------------------------------------------------------ 724 725 sal_Bool BitmapEx::Adjust( short nLuminancePercent, short nContrastPercent, 726 short nChannelRPercent, short nChannelGPercent, short nChannelBPercent, 727 double fGamma, sal_Bool bInvert ) 728 { 729 return( !!aBitmap ? aBitmap.Adjust( nLuminancePercent, nContrastPercent, 730 nChannelRPercent, nChannelGPercent, nChannelBPercent, 731 fGamma, bInvert ) : sal_False ); 732 } 733 734 // ------------------------------------------------------------------ 735 736 sal_Bool BitmapEx::Filter( BmpFilter eFilter, const BmpFilterParam* pFilterParam, const Link* pProgress ) 737 { 738 return( !!aBitmap ? aBitmap.Filter( eFilter, pFilterParam, pProgress ) : sal_False ); 739 } 740 741 // ------------------------------------------------------------------ 742 743 void BitmapEx::Draw( OutputDevice* pOutDev, const Point& rDestPt ) const 744 { 745 pOutDev->DrawBitmapEx( rDestPt, *this ); 746 } 747 748 // ------------------------------------------------------------------ 749 750 void BitmapEx::Draw( OutputDevice* pOutDev, 751 const Point& rDestPt, const Size& rDestSize ) const 752 { 753 pOutDev->DrawBitmapEx( rDestPt, rDestSize, *this ); 754 } 755 756 // ------------------------------------------------------------------ 757 758 void BitmapEx::Draw( OutputDevice* pOutDev, 759 const Point& rDestPt, const Size& rDestSize, 760 const Point& rSrcPtPixel, const Size& rSrcSizePixel ) const 761 { 762 pOutDev->DrawBitmapEx( rDestPt, rDestSize, rSrcPtPixel, rSrcSizePixel, *this ); 763 } 764 765 // ------------------------------------------------------------------ 766 767 sal_uInt8 BitmapEx::GetTransparency(sal_Int32 nX, sal_Int32 nY) const 768 { 769 sal_uInt8 nTransparency(0xff); 770 771 if(!aBitmap.IsEmpty()) 772 { 773 if(nX >= 0 && nX < aBitmapSize.Width() && nY >= 0 && nY < aBitmapSize.Height()) 774 { 775 switch(eTransparent) 776 { 777 case TRANSPARENT_NONE: 778 { 779 // not transparent, ergo all covered 780 nTransparency = 0x00; 781 break; 782 } 783 case TRANSPARENT_COLOR: 784 { 785 Bitmap aTestBitmap(aBitmap); 786 BitmapReadAccess* pRead = aTestBitmap.AcquireReadAccess(); 787 788 if(pRead) 789 { 790 const Color aColor = pRead->GetColor(nY, nX); 791 792 // if color is not equal to TransparentColor, we are not transparent 793 if(aColor != aTransparentColor) 794 { 795 nTransparency = 0x00; 796 } 797 798 aTestBitmap.ReleaseAccess(pRead); 799 } 800 break; 801 } 802 case TRANSPARENT_BITMAP: 803 { 804 if(!aMask.IsEmpty()) 805 { 806 Bitmap aTestBitmap(aMask); 807 BitmapReadAccess* pRead = aTestBitmap.AcquireReadAccess(); 808 809 if(pRead) 810 { 811 const BitmapColor aBitmapColor(pRead->GetPixel(nY, nX)); 812 813 if(bAlpha) 814 { 815 nTransparency = aBitmapColor.GetIndex(); 816 } 817 else 818 { 819 if(0x00 == aBitmapColor.GetIndex()) 820 { 821 nTransparency = 0x00; 822 } 823 } 824 825 aTestBitmap.ReleaseAccess(pRead); 826 } 827 } 828 break; 829 } 830 } 831 } 832 } 833 834 return nTransparency; 835 } 836 837 // ------------------------------------------------------------------ 838 839 SvStream& operator<<( SvStream& rOStm, const BitmapEx& rBitmapEx ) 840 { 841 rBitmapEx.aBitmap.Write( rOStm ); 842 843 rOStm << (sal_uInt32) 0x25091962; 844 rOStm << (sal_uInt32) 0xACB20201; 845 rOStm << (sal_uInt8) rBitmapEx.eTransparent; 846 847 if( rBitmapEx.eTransparent == TRANSPARENT_BITMAP ) 848 rBitmapEx.aMask.Write( rOStm ); 849 else if( rBitmapEx.eTransparent == TRANSPARENT_COLOR ) 850 rOStm << rBitmapEx.aTransparentColor; 851 852 return rOStm; 853 } 854 855 // ------------------------------------------------------------------ 856 857 SvStream& operator>>( SvStream& rIStm, BitmapEx& rBitmapEx ) 858 { 859 Bitmap aBmp; 860 861 rIStm >> aBmp; 862 863 if( !rIStm.GetError() ) 864 { 865 const sal_uLong nStmPos = rIStm.Tell(); 866 sal_uInt32 nMagic1 = 0; 867 sal_uInt32 nMagic2 = 0; 868 869 rIStm >> nMagic1 >> nMagic2; 870 871 if( ( nMagic1 != 0x25091962 ) || ( nMagic2 != 0xACB20201 ) || rIStm.GetError() ) 872 { 873 rIStm.ResetError(); 874 rIStm.Seek( nStmPos ); 875 rBitmapEx = aBmp; 876 } 877 else 878 { 879 sal_uInt8 bTransparent = false; 880 881 rIStm >> bTransparent; 882 883 if( bTransparent == (sal_uInt8) TRANSPARENT_BITMAP ) 884 { 885 Bitmap aMask; 886 887 rIStm >> aMask; 888 889 if( !!aMask) 890 { 891 // do we have an alpha mask? 892 if( ( 8 == aMask.GetBitCount() ) && aMask.HasGreyPalette() ) 893 { 894 AlphaMask aAlpha; 895 896 // create alpha mask quickly (without greyscale conversion) 897 aAlpha.ImplSetBitmap( aMask ); 898 rBitmapEx = BitmapEx( aBmp, aAlpha ); 899 } 900 else 901 rBitmapEx = BitmapEx( aBmp, aMask ); 902 } 903 else 904 rBitmapEx = aBmp; 905 } 906 else if( bTransparent == (sal_uInt8) TRANSPARENT_COLOR ) 907 { 908 Color aTransparentColor; 909 910 rIStm >> aTransparentColor; 911 rBitmapEx = BitmapEx( aBmp, aTransparentColor ); 912 } 913 else 914 rBitmapEx = aBmp; 915 } 916 } 917 918 return rIStm; 919 } 920