1*cdf0e10cSrcweir /************************************************************************* 2*cdf0e10cSrcweir * 3*cdf0e10cSrcweir * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4*cdf0e10cSrcweir * 5*cdf0e10cSrcweir * Copyright 2000, 2010 Oracle and/or its affiliates. 6*cdf0e10cSrcweir * 7*cdf0e10cSrcweir * OpenOffice.org - a multi-platform office productivity suite 8*cdf0e10cSrcweir * 9*cdf0e10cSrcweir * This file is part of OpenOffice.org. 10*cdf0e10cSrcweir * 11*cdf0e10cSrcweir * OpenOffice.org is free software: you can redistribute it and/or modify 12*cdf0e10cSrcweir * it under the terms of the GNU Lesser General Public License version 3 13*cdf0e10cSrcweir * only, as published by the Free Software Foundation. 14*cdf0e10cSrcweir * 15*cdf0e10cSrcweir * OpenOffice.org is distributed in the hope that it will be useful, 16*cdf0e10cSrcweir * but WITHOUT ANY WARRANTY; without even the implied warranty of 17*cdf0e10cSrcweir * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18*cdf0e10cSrcweir * GNU Lesser General Public License version 3 for more details 19*cdf0e10cSrcweir * (a copy is included in the LICENSE file that accompanied this code). 20*cdf0e10cSrcweir * 21*cdf0e10cSrcweir * You should have received a copy of the GNU Lesser General Public License 22*cdf0e10cSrcweir * version 3 along with OpenOffice.org. If not, see 23*cdf0e10cSrcweir * <http://www.openoffice.org/license.html> 24*cdf0e10cSrcweir * for a copy of the LGPLv3 License. 25*cdf0e10cSrcweir * 26*cdf0e10cSrcweir ************************************************************************/ 27*cdf0e10cSrcweir 28*cdf0e10cSrcweir // MARKER(update_precomp.py): autogen include statement, do not remove 29*cdf0e10cSrcweir #include "precompiled_vcl.hxx" 30*cdf0e10cSrcweir #include <tools/debug.hxx> 31*cdf0e10cSrcweir #include <vcl/bmpacc.hxx> 32*cdf0e10cSrcweir #include <tools/color.hxx> 33*cdf0e10cSrcweir #include <vcl/alpha.hxx> 34*cdf0e10cSrcweir 35*cdf0e10cSrcweir // ------------- 36*cdf0e10cSrcweir // - AlphaMask - 37*cdf0e10cSrcweir // ------------- 38*cdf0e10cSrcweir 39*cdf0e10cSrcweir AlphaMask::AlphaMask() 40*cdf0e10cSrcweir { 41*cdf0e10cSrcweir } 42*cdf0e10cSrcweir 43*cdf0e10cSrcweir // ----------------------------------------------------------------------------- 44*cdf0e10cSrcweir 45*cdf0e10cSrcweir AlphaMask::AlphaMask( const Bitmap& rBitmap ) : 46*cdf0e10cSrcweir Bitmap( rBitmap ) 47*cdf0e10cSrcweir { 48*cdf0e10cSrcweir if( !!rBitmap ) 49*cdf0e10cSrcweir Bitmap::Convert( BMP_CONVERSION_8BIT_GREYS ); 50*cdf0e10cSrcweir } 51*cdf0e10cSrcweir 52*cdf0e10cSrcweir // ----------------------------------------------------------------------------- 53*cdf0e10cSrcweir 54*cdf0e10cSrcweir AlphaMask::AlphaMask( const AlphaMask& rAlphaMask ) : 55*cdf0e10cSrcweir Bitmap( rAlphaMask ) 56*cdf0e10cSrcweir { 57*cdf0e10cSrcweir } 58*cdf0e10cSrcweir 59*cdf0e10cSrcweir // ----------------------------------------------------------------------------- 60*cdf0e10cSrcweir 61*cdf0e10cSrcweir AlphaMask::AlphaMask( const Size& rSizePixel, sal_uInt8* pEraseTransparency ) : 62*cdf0e10cSrcweir Bitmap( rSizePixel, 8, &Bitmap::GetGreyPalette( 256 ) ) 63*cdf0e10cSrcweir { 64*cdf0e10cSrcweir if( pEraseTransparency ) 65*cdf0e10cSrcweir Bitmap::Erase( Color( *pEraseTransparency, *pEraseTransparency, *pEraseTransparency ) ); 66*cdf0e10cSrcweir } 67*cdf0e10cSrcweir 68*cdf0e10cSrcweir // ----------------------------------------------------------------------------- 69*cdf0e10cSrcweir 70*cdf0e10cSrcweir AlphaMask::~AlphaMask() 71*cdf0e10cSrcweir { 72*cdf0e10cSrcweir } 73*cdf0e10cSrcweir 74*cdf0e10cSrcweir // ----------------------------------------------------------------------------- 75*cdf0e10cSrcweir 76*cdf0e10cSrcweir AlphaMask& AlphaMask::operator=( const Bitmap& rBitmap ) 77*cdf0e10cSrcweir { 78*cdf0e10cSrcweir *(Bitmap*) this = rBitmap; 79*cdf0e10cSrcweir 80*cdf0e10cSrcweir if( !!rBitmap ) 81*cdf0e10cSrcweir Bitmap::Convert( BMP_CONVERSION_8BIT_GREYS ); 82*cdf0e10cSrcweir 83*cdf0e10cSrcweir return *this; 84*cdf0e10cSrcweir } 85*cdf0e10cSrcweir 86*cdf0e10cSrcweir // ----------------------------------------------------------------------------- 87*cdf0e10cSrcweir 88*cdf0e10cSrcweir const Bitmap& AlphaMask::ImplGetBitmap() const 89*cdf0e10cSrcweir { 90*cdf0e10cSrcweir return( (const Bitmap&) *this ); 91*cdf0e10cSrcweir } 92*cdf0e10cSrcweir 93*cdf0e10cSrcweir // ----------------------------------------------------------------------------- 94*cdf0e10cSrcweir 95*cdf0e10cSrcweir void AlphaMask::ImplSetBitmap( const Bitmap& rBitmap ) 96*cdf0e10cSrcweir { 97*cdf0e10cSrcweir DBG_ASSERT( ( 8 == rBitmap.GetBitCount() ) && rBitmap.HasGreyPalette(), "AlphaMask::ImplSetBitmap: invalid bitmap" ); 98*cdf0e10cSrcweir *(Bitmap*) this = rBitmap; 99*cdf0e10cSrcweir } 100*cdf0e10cSrcweir 101*cdf0e10cSrcweir // ----------------------------------------------------------------------------- 102*cdf0e10cSrcweir 103*cdf0e10cSrcweir Bitmap AlphaMask::GetBitmap() const 104*cdf0e10cSrcweir { 105*cdf0e10cSrcweir return ImplGetBitmap(); 106*cdf0e10cSrcweir } 107*cdf0e10cSrcweir 108*cdf0e10cSrcweir // ----------------------------------------------------------------------------- 109*cdf0e10cSrcweir 110*cdf0e10cSrcweir sal_Bool AlphaMask::Crop( const Rectangle& rRectPixel ) 111*cdf0e10cSrcweir { 112*cdf0e10cSrcweir return Bitmap::Crop( rRectPixel ); 113*cdf0e10cSrcweir } 114*cdf0e10cSrcweir 115*cdf0e10cSrcweir // ----------------------------------------------------------------------------- 116*cdf0e10cSrcweir 117*cdf0e10cSrcweir sal_Bool AlphaMask::Expand( sal_uLong nDX, sal_uLong nDY, sal_uInt8* pInitTransparency ) 118*cdf0e10cSrcweir { 119*cdf0e10cSrcweir Color aColor; 120*cdf0e10cSrcweir 121*cdf0e10cSrcweir if( pInitTransparency ) 122*cdf0e10cSrcweir aColor = Color( *pInitTransparency, *pInitTransparency, *pInitTransparency ); 123*cdf0e10cSrcweir 124*cdf0e10cSrcweir return Bitmap::Expand( nDX, nDY, pInitTransparency ? &aColor : NULL ); 125*cdf0e10cSrcweir } 126*cdf0e10cSrcweir 127*cdf0e10cSrcweir // ----------------------------------------------------------------------------- 128*cdf0e10cSrcweir 129*cdf0e10cSrcweir sal_Bool AlphaMask::CopyPixel( const Rectangle& rRectDst, const Rectangle& rRectSrc, 130*cdf0e10cSrcweir const AlphaMask* pAlphaSrc ) 131*cdf0e10cSrcweir { 132*cdf0e10cSrcweir // Note: this code is copied from Bitmap::CopyPixel but avoids any palette lookups 133*cdf0e10cSrcweir // this optimization is possible because the palettes of AlphaMasks are always identical (8bit GreyPalette, see ctor) 134*cdf0e10cSrcweir 135*cdf0e10cSrcweir const Size aSizePix( GetSizePixel() ); 136*cdf0e10cSrcweir Rectangle aRectDst( rRectDst ); 137*cdf0e10cSrcweir sal_Bool bRet = sal_False; 138*cdf0e10cSrcweir 139*cdf0e10cSrcweir aRectDst.Intersection( Rectangle( Point(), aSizePix ) ); 140*cdf0e10cSrcweir 141*cdf0e10cSrcweir if( !aRectDst.IsEmpty() ) 142*cdf0e10cSrcweir { 143*cdf0e10cSrcweir if( pAlphaSrc && ( *pAlphaSrc != *this ) ) 144*cdf0e10cSrcweir { 145*cdf0e10cSrcweir Bitmap* pSrc = (Bitmap*) pAlphaSrc; 146*cdf0e10cSrcweir const Size aCopySizePix( pSrc->GetSizePixel() ); 147*cdf0e10cSrcweir Rectangle aRectSrc( rRectSrc ); 148*cdf0e10cSrcweir 149*cdf0e10cSrcweir aRectSrc.Intersection( Rectangle( Point(), aCopySizePix ) ); 150*cdf0e10cSrcweir 151*cdf0e10cSrcweir if( !aRectSrc.IsEmpty() ) 152*cdf0e10cSrcweir { 153*cdf0e10cSrcweir BitmapReadAccess* pReadAcc = pSrc->AcquireReadAccess(); 154*cdf0e10cSrcweir 155*cdf0e10cSrcweir if( pReadAcc ) 156*cdf0e10cSrcweir { 157*cdf0e10cSrcweir BitmapWriteAccess* pWriteAcc = AcquireWriteAccess(); 158*cdf0e10cSrcweir 159*cdf0e10cSrcweir if( pWriteAcc ) 160*cdf0e10cSrcweir { 161*cdf0e10cSrcweir const long nWidth = Min( aRectSrc.GetWidth(), aRectDst.GetWidth() ); 162*cdf0e10cSrcweir const long nHeight = Min( aRectSrc.GetHeight(), aRectDst.GetHeight() ); 163*cdf0e10cSrcweir const long nSrcEndX = aRectSrc.Left() + nWidth; 164*cdf0e10cSrcweir const long nSrcEndY = aRectSrc.Top() + nHeight; 165*cdf0e10cSrcweir long nDstY = aRectDst.Top(); 166*cdf0e10cSrcweir 167*cdf0e10cSrcweir for( long nSrcY = aRectSrc.Top(); nSrcY < nSrcEndY; nSrcY++, nDstY++ ) 168*cdf0e10cSrcweir for( long nSrcX = aRectSrc.Left(), nDstX = aRectDst.Left(); nSrcX < nSrcEndX; nSrcX++, nDstX++ ) 169*cdf0e10cSrcweir pWriteAcc->SetPixel( nDstY, nDstX, pReadAcc->GetPixel( nSrcY, nSrcX ) ); 170*cdf0e10cSrcweir 171*cdf0e10cSrcweir ReleaseAccess( pWriteAcc ); 172*cdf0e10cSrcweir bRet = ( nWidth > 0L ) && ( nHeight > 0L ); 173*cdf0e10cSrcweir } 174*cdf0e10cSrcweir 175*cdf0e10cSrcweir pSrc->ReleaseAccess( pReadAcc ); 176*cdf0e10cSrcweir } 177*cdf0e10cSrcweir } 178*cdf0e10cSrcweir } 179*cdf0e10cSrcweir else 180*cdf0e10cSrcweir { 181*cdf0e10cSrcweir Rectangle aRectSrc( rRectSrc ); 182*cdf0e10cSrcweir 183*cdf0e10cSrcweir aRectSrc.Intersection( Rectangle( Point(), aSizePix ) ); 184*cdf0e10cSrcweir 185*cdf0e10cSrcweir if( !aRectSrc.IsEmpty() && ( aRectSrc != aRectDst ) ) 186*cdf0e10cSrcweir { 187*cdf0e10cSrcweir BitmapWriteAccess* pWriteAcc = AcquireWriteAccess(); 188*cdf0e10cSrcweir 189*cdf0e10cSrcweir if( pWriteAcc ) 190*cdf0e10cSrcweir { 191*cdf0e10cSrcweir const long nWidth = Min( aRectSrc.GetWidth(), aRectDst.GetWidth() ); 192*cdf0e10cSrcweir const long nHeight = Min( aRectSrc.GetHeight(), aRectDst.GetHeight() ); 193*cdf0e10cSrcweir const long nSrcX = aRectSrc.Left(); 194*cdf0e10cSrcweir const long nSrcY = aRectSrc.Top(); 195*cdf0e10cSrcweir const long nSrcEndX1 = nSrcX + nWidth - 1L; 196*cdf0e10cSrcweir const long nSrcEndY1 = nSrcY + nHeight - 1L; 197*cdf0e10cSrcweir const long nDstX = aRectDst.Left(); 198*cdf0e10cSrcweir const long nDstY = aRectDst.Top(); 199*cdf0e10cSrcweir const long nDstEndX1 = nDstX + nWidth - 1L; 200*cdf0e10cSrcweir const long nDstEndY1 = nDstY + nHeight - 1L; 201*cdf0e10cSrcweir 202*cdf0e10cSrcweir if( ( nDstX <= nSrcX ) && ( nDstY <= nSrcY ) ) 203*cdf0e10cSrcweir { 204*cdf0e10cSrcweir for( long nY = nSrcY, nYN = nDstY; nY <= nSrcEndY1; nY++, nYN++ ) 205*cdf0e10cSrcweir for( long nX = nSrcX, nXN = nDstX; nX <= nSrcEndX1; nX++, nXN++ ) 206*cdf0e10cSrcweir pWriteAcc->SetPixel( nYN, nXN, pWriteAcc->GetPixel( nY, nX ) ); 207*cdf0e10cSrcweir } 208*cdf0e10cSrcweir else if( ( nDstX <= nSrcX ) && ( nDstY >= nSrcY ) ) 209*cdf0e10cSrcweir { 210*cdf0e10cSrcweir for( long nY = nSrcEndY1, nYN = nDstEndY1; nY >= nSrcY; nY--, nYN-- ) 211*cdf0e10cSrcweir for( long nX = nSrcX, nXN = nDstX; nX <= nSrcEndX1; nX++, nXN++ ) 212*cdf0e10cSrcweir pWriteAcc->SetPixel( nYN, nXN, pWriteAcc->GetPixel( nY, nX ) ); 213*cdf0e10cSrcweir } 214*cdf0e10cSrcweir else if( ( nDstX >= nSrcX ) && ( nDstY <= nSrcY ) ) 215*cdf0e10cSrcweir { 216*cdf0e10cSrcweir for( long nY = nSrcY, nYN = nDstY; nY <= nSrcEndY1; nY++, nYN++ ) 217*cdf0e10cSrcweir for( long nX = nSrcEndX1, nXN = nDstEndX1; nX >= nSrcX; nX--, nXN-- ) 218*cdf0e10cSrcweir pWriteAcc->SetPixel( nYN, nXN, pWriteAcc->GetPixel( nY, nX ) ); 219*cdf0e10cSrcweir } 220*cdf0e10cSrcweir else 221*cdf0e10cSrcweir { 222*cdf0e10cSrcweir for( long nY = nSrcEndY1, nYN = nDstEndY1; nY >= nSrcY; nY--, nYN-- ) 223*cdf0e10cSrcweir for( long nX = nSrcEndX1, nXN = nDstEndX1; nX >= nSrcX; nX--, nXN-- ) 224*cdf0e10cSrcweir pWriteAcc->SetPixel( nYN, nXN, pWriteAcc->GetPixel( nY, nX ) ); 225*cdf0e10cSrcweir } 226*cdf0e10cSrcweir 227*cdf0e10cSrcweir ReleaseAccess( pWriteAcc ); 228*cdf0e10cSrcweir bRet = sal_True; 229*cdf0e10cSrcweir } 230*cdf0e10cSrcweir } 231*cdf0e10cSrcweir } 232*cdf0e10cSrcweir } 233*cdf0e10cSrcweir 234*cdf0e10cSrcweir return bRet; 235*cdf0e10cSrcweir 236*cdf0e10cSrcweir } 237*cdf0e10cSrcweir 238*cdf0e10cSrcweir // ----------------------------------------------------------------------------- 239*cdf0e10cSrcweir 240*cdf0e10cSrcweir sal_Bool AlphaMask::Erase( sal_uInt8 cTransparency ) 241*cdf0e10cSrcweir { 242*cdf0e10cSrcweir return Bitmap::Erase( Color( cTransparency, cTransparency, cTransparency ) ); 243*cdf0e10cSrcweir } 244*cdf0e10cSrcweir 245*cdf0e10cSrcweir // ----------------------------------------------------------------------------- 246*cdf0e10cSrcweir 247*cdf0e10cSrcweir sal_Bool AlphaMask::Invert() 248*cdf0e10cSrcweir { 249*cdf0e10cSrcweir BitmapWriteAccess* pAcc = AcquireWriteAccess(); 250*cdf0e10cSrcweir sal_Bool bRet = sal_False; 251*cdf0e10cSrcweir 252*cdf0e10cSrcweir if( pAcc && pAcc->GetBitCount() == 8 ) 253*cdf0e10cSrcweir { 254*cdf0e10cSrcweir BitmapColor aCol( 0 ); 255*cdf0e10cSrcweir const long nWidth = pAcc->Width(), nHeight = pAcc->Height(); 256*cdf0e10cSrcweir sal_uInt8* pMap = new sal_uInt8[ 256 ]; 257*cdf0e10cSrcweir 258*cdf0e10cSrcweir for( long i = 0; i < 256; i++ ) 259*cdf0e10cSrcweir pMap[ i ] = ~(sal_uInt8) i; 260*cdf0e10cSrcweir 261*cdf0e10cSrcweir for( long nY = 0L; nY < nHeight; nY++ ) 262*cdf0e10cSrcweir { 263*cdf0e10cSrcweir for( long nX = 0L; nX < nWidth; nX++ ) 264*cdf0e10cSrcweir { 265*cdf0e10cSrcweir aCol.SetIndex( pMap[ pAcc->GetPixel( nY, nX ).GetIndex() ] ); 266*cdf0e10cSrcweir pAcc->SetPixel( nY, nX, aCol ); 267*cdf0e10cSrcweir } 268*cdf0e10cSrcweir } 269*cdf0e10cSrcweir 270*cdf0e10cSrcweir delete[] pMap; 271*cdf0e10cSrcweir bRet = sal_True; 272*cdf0e10cSrcweir } 273*cdf0e10cSrcweir 274*cdf0e10cSrcweir if( pAcc ) 275*cdf0e10cSrcweir ReleaseAccess( pAcc ); 276*cdf0e10cSrcweir 277*cdf0e10cSrcweir return bRet; 278*cdf0e10cSrcweir } 279*cdf0e10cSrcweir 280*cdf0e10cSrcweir // ----------------------------------------------------------------------------- 281*cdf0e10cSrcweir 282*cdf0e10cSrcweir sal_Bool AlphaMask::Mirror( sal_uLong nMirrorFlags ) 283*cdf0e10cSrcweir { 284*cdf0e10cSrcweir return Bitmap::Mirror( nMirrorFlags ); 285*cdf0e10cSrcweir } 286*cdf0e10cSrcweir 287*cdf0e10cSrcweir // ----------------------------------------------------------------------------- 288*cdf0e10cSrcweir 289*cdf0e10cSrcweir sal_Bool AlphaMask::Scale( const Size& rNewSize, sal_uLong nScaleFlag ) 290*cdf0e10cSrcweir { 291*cdf0e10cSrcweir sal_Bool bRet = Bitmap::Scale( rNewSize, nScaleFlag ); 292*cdf0e10cSrcweir 293*cdf0e10cSrcweir if( bRet && ( nScaleFlag == BMP_SCALE_INTERPOLATE ) ) 294*cdf0e10cSrcweir Bitmap::Convert( BMP_CONVERSION_8BIT_GREYS ); 295*cdf0e10cSrcweir 296*cdf0e10cSrcweir return bRet; 297*cdf0e10cSrcweir } 298*cdf0e10cSrcweir 299*cdf0e10cSrcweir // ----------------------------------------------------------------------------- 300*cdf0e10cSrcweir 301*cdf0e10cSrcweir sal_Bool AlphaMask::Scale( const double& rScaleX, const double& rScaleY, sal_uLong nScaleFlag ) 302*cdf0e10cSrcweir { 303*cdf0e10cSrcweir sal_Bool bRet = Bitmap::Scale( rScaleX, rScaleY, nScaleFlag ); 304*cdf0e10cSrcweir 305*cdf0e10cSrcweir if( bRet && ( nScaleFlag == BMP_SCALE_INTERPOLATE ) ) 306*cdf0e10cSrcweir Bitmap::Convert( BMP_CONVERSION_8BIT_GREYS ); 307*cdf0e10cSrcweir 308*cdf0e10cSrcweir return bRet; 309*cdf0e10cSrcweir } 310*cdf0e10cSrcweir 311*cdf0e10cSrcweir // ----------------------------------------------------------------------------- 312*cdf0e10cSrcweir 313*cdf0e10cSrcweir sal_Bool AlphaMask::Rotate( long nAngle10, sal_uInt8 cFillTransparency ) 314*cdf0e10cSrcweir { 315*cdf0e10cSrcweir return Bitmap::Rotate( nAngle10, Color( cFillTransparency, cFillTransparency, cFillTransparency ) ); 316*cdf0e10cSrcweir } 317*cdf0e10cSrcweir 318*cdf0e10cSrcweir // ----------------------------------------------------------------------------- 319*cdf0e10cSrcweir 320*cdf0e10cSrcweir sal_Bool AlphaMask::Replace( const Bitmap& rMask, sal_uInt8 cReplaceTransparency ) 321*cdf0e10cSrcweir { 322*cdf0e10cSrcweir BitmapReadAccess* pMaskAcc = ( (Bitmap&) rMask ).AcquireReadAccess(); 323*cdf0e10cSrcweir BitmapWriteAccess* pAcc = AcquireWriteAccess(); 324*cdf0e10cSrcweir sal_Bool bRet = sal_False; 325*cdf0e10cSrcweir 326*cdf0e10cSrcweir if( pMaskAcc && pAcc ) 327*cdf0e10cSrcweir { 328*cdf0e10cSrcweir const BitmapColor aReplace( cReplaceTransparency ); 329*cdf0e10cSrcweir const long nWidth = Min( pMaskAcc->Width(), pAcc->Width() ); 330*cdf0e10cSrcweir const long nHeight = Min( pMaskAcc->Height(), pAcc->Height() ); 331*cdf0e10cSrcweir const BitmapColor aMaskWhite( pMaskAcc->GetBestMatchingColor( Color( COL_WHITE ) ) ); 332*cdf0e10cSrcweir 333*cdf0e10cSrcweir for( long nY = 0L; nY < nHeight; nY++ ) 334*cdf0e10cSrcweir for( long nX = 0L; nX < nWidth; nX++ ) 335*cdf0e10cSrcweir if( pMaskAcc->GetPixel( nY, nX ) == aMaskWhite ) 336*cdf0e10cSrcweir pAcc->SetPixel( nY, nX, aReplace ); 337*cdf0e10cSrcweir } 338*cdf0e10cSrcweir 339*cdf0e10cSrcweir ( (Bitmap&) rMask ).ReleaseAccess( pMaskAcc ); 340*cdf0e10cSrcweir ReleaseAccess( pAcc ); 341*cdf0e10cSrcweir 342*cdf0e10cSrcweir return bRet; 343*cdf0e10cSrcweir } 344*cdf0e10cSrcweir 345*cdf0e10cSrcweir // ----------------------------------------------------------------------------- 346*cdf0e10cSrcweir 347*cdf0e10cSrcweir sal_Bool AlphaMask::Replace( sal_uInt8 cSearchTransparency, sal_uInt8 cReplaceTransparency, sal_uLong 348*cdf0e10cSrcweir #ifdef DBG_UTIL 349*cdf0e10cSrcweir nTol 350*cdf0e10cSrcweir #endif 351*cdf0e10cSrcweir ) 352*cdf0e10cSrcweir { 353*cdf0e10cSrcweir BitmapWriteAccess* pAcc = AcquireWriteAccess(); 354*cdf0e10cSrcweir sal_Bool bRet = sal_False; 355*cdf0e10cSrcweir 356*cdf0e10cSrcweir DBG_ASSERT( !nTol, "AlphaMask::Replace: nTol not used yet" ); 357*cdf0e10cSrcweir 358*cdf0e10cSrcweir if( pAcc && pAcc->GetBitCount() == 8 ) 359*cdf0e10cSrcweir { 360*cdf0e10cSrcweir const long nWidth = pAcc->Width(), nHeight = pAcc->Height(); 361*cdf0e10cSrcweir 362*cdf0e10cSrcweir if( pAcc->GetScanlineFormat() == BMP_FORMAT_8BIT_PAL ) 363*cdf0e10cSrcweir { 364*cdf0e10cSrcweir for( long nY = 0L; nY < nHeight; nY++ ) 365*cdf0e10cSrcweir { 366*cdf0e10cSrcweir Scanline pScan = pAcc->GetScanline( nY ); 367*cdf0e10cSrcweir 368*cdf0e10cSrcweir for( long nX = 0L; nX < nWidth; nX++, pScan++ ) 369*cdf0e10cSrcweir { 370*cdf0e10cSrcweir if( *pScan == cSearchTransparency ) 371*cdf0e10cSrcweir *pScan = cReplaceTransparency; 372*cdf0e10cSrcweir } 373*cdf0e10cSrcweir } 374*cdf0e10cSrcweir } 375*cdf0e10cSrcweir else 376*cdf0e10cSrcweir { 377*cdf0e10cSrcweir BitmapColor aReplace( cReplaceTransparency ); 378*cdf0e10cSrcweir 379*cdf0e10cSrcweir for( long nY = 0L; nY < nHeight; nY++ ) 380*cdf0e10cSrcweir { 381*cdf0e10cSrcweir for( long nX = 0L; nX < nWidth; nX++ ) 382*cdf0e10cSrcweir { 383*cdf0e10cSrcweir if( pAcc->GetPixel( nY, nX ).GetIndex() == cSearchTransparency ) 384*cdf0e10cSrcweir pAcc->SetPixel( nY, nX, aReplace ); 385*cdf0e10cSrcweir } 386*cdf0e10cSrcweir } 387*cdf0e10cSrcweir } 388*cdf0e10cSrcweir 389*cdf0e10cSrcweir bRet = sal_True; 390*cdf0e10cSrcweir } 391*cdf0e10cSrcweir 392*cdf0e10cSrcweir if( pAcc ) 393*cdf0e10cSrcweir ReleaseAccess( pAcc ); 394*cdf0e10cSrcweir 395*cdf0e10cSrcweir return bRet; 396*cdf0e10cSrcweir } 397*cdf0e10cSrcweir 398*cdf0e10cSrcweir // ----------------------------------------------------------------------------- 399*cdf0e10cSrcweir 400*cdf0e10cSrcweir sal_Bool AlphaMask::Replace( sal_uInt8* pSearchTransparencies, sal_uInt8* pReplaceTransparencies, 401*cdf0e10cSrcweir sal_uLong nColorCount, sal_uLong* pTols ) 402*cdf0e10cSrcweir { 403*cdf0e10cSrcweir Color* pSearchColors = new Color[ nColorCount ]; 404*cdf0e10cSrcweir Color* pReplaceColors = new Color[ nColorCount ]; 405*cdf0e10cSrcweir sal_Bool bRet; 406*cdf0e10cSrcweir 407*cdf0e10cSrcweir for( sal_uLong i = 0; i < nColorCount; i++ ) 408*cdf0e10cSrcweir { 409*cdf0e10cSrcweir const sal_uInt8 cSearchTransparency = pSearchTransparencies[ i ]; 410*cdf0e10cSrcweir const sal_uInt8 cReplaceTransparency = pReplaceTransparencies[ i ]; 411*cdf0e10cSrcweir 412*cdf0e10cSrcweir pSearchColors[ i ] = Color( cSearchTransparency, cSearchTransparency, cSearchTransparency ); 413*cdf0e10cSrcweir pReplaceColors[ i ] = Color( cReplaceTransparency, cReplaceTransparency, cReplaceTransparency ); 414*cdf0e10cSrcweir } 415*cdf0e10cSrcweir 416*cdf0e10cSrcweir bRet = Bitmap::Replace( pSearchColors, pReplaceColors, nColorCount, pTols ) && 417*cdf0e10cSrcweir Bitmap::Convert( BMP_CONVERSION_8BIT_GREYS ); 418*cdf0e10cSrcweir 419*cdf0e10cSrcweir delete[] pSearchColors; 420*cdf0e10cSrcweir delete[] pReplaceColors; 421*cdf0e10cSrcweir 422*cdf0e10cSrcweir return bRet; 423*cdf0e10cSrcweir } 424*cdf0e10cSrcweir 425*cdf0e10cSrcweir // ----------------------------------------------------------------------------- 426*cdf0e10cSrcweir 427*cdf0e10cSrcweir void AlphaMask::ReleaseAccess( BitmapReadAccess* pAccess ) 428*cdf0e10cSrcweir { 429*cdf0e10cSrcweir if( pAccess ) 430*cdf0e10cSrcweir { 431*cdf0e10cSrcweir Bitmap::ReleaseAccess( pAccess ); 432*cdf0e10cSrcweir Bitmap::Convert( BMP_CONVERSION_8BIT_GREYS ); 433*cdf0e10cSrcweir } 434*cdf0e10cSrcweir } 435