/**************************************************************
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_vcl.hxx"
#include <rtl/crc.h>
#include <tools/stream.hxx>
#include <tools/poly.hxx>
#include <tools/rc.h>
#include <vcl/salbtype.hxx>
#include <vcl/bmpacc.hxx>
#include <vcl/outdev.hxx>
#include <vcl/bitmap.hxx>
#include <vcl/bitmapex.hxx>
#include <vcl/svapp.hxx>
#include <vcl/image.hxx>
#include <impbmp.hxx>
#include <salbmp.hxx>
// ----------
// - Bitmap -
// ----------
Bitmap::Bitmap() :
mpImpBmp( NULL )
{
}
// ------------------------------------------------------------------
Bitmap::Bitmap( const ResId& rResId ) :
mpImpBmp( NULL )
{
const BitmapEx aBmpEx( rResId );
if( !aBmpEx.IsEmpty() )
*this = aBmpEx.GetBitmap();
}
// ------------------------------------------------------------------
Bitmap::Bitmap( const Bitmap& rBitmap ) :
maPrefMapMode ( rBitmap.maPrefMapMode ),
maPrefSize ( rBitmap.maPrefSize )
{
mpImpBmp = rBitmap.mpImpBmp;
if ( mpImpBmp )
mpImpBmp->ImplIncRefCount();
}
// ------------------------------------------------------------------
Bitmap::Bitmap( SalBitmap* pSalBitmap )
{
mpImpBmp = new ImpBitmap();
mpImpBmp->ImplSetSalBitmap( pSalBitmap );
maPrefMapMode = MapMode( MAP_PIXEL );
maPrefSize = mpImpBmp->ImplGetSize();
}
// ------------------------------------------------------------------
Bitmap::Bitmap( const Size& rSizePixel, sal_uInt16 nBitCount, const BitmapPalette* pPal )
{
if( rSizePixel.Width() && rSizePixel.Height() )
{
BitmapPalette aPal;
BitmapPalette* pRealPal = NULL;
if( nBitCount <= 8 )
{
if( !pPal )
{
if( 1 == nBitCount )
{
aPal.SetEntryCount( 2 );
aPal[ 0 ] = Color( COL_BLACK );
aPal[ 1 ] = Color( COL_WHITE );
}
else if( ( 4 == nBitCount ) || ( 8 == nBitCount ) )
{
aPal.SetEntryCount( 1 << nBitCount );
aPal[ 0 ] = Color( COL_BLACK );
aPal[ 1 ] = Color( COL_BLUE );
aPal[ 2 ] = Color( COL_GREEN );
aPal[ 3 ] = Color( COL_CYAN );
aPal[ 4 ] = Color( COL_RED );
aPal[ 5 ] = Color( COL_MAGENTA );
aPal[ 6 ] = Color( COL_BROWN );
aPal[ 7 ] = Color( COL_GRAY );
aPal[ 8 ] = Color( COL_LIGHTGRAY );
aPal[ 9 ] = Color( COL_LIGHTBLUE );
aPal[ 10 ] = Color( COL_LIGHTGREEN );
aPal[ 11 ] = Color( COL_LIGHTCYAN );
aPal[ 12 ] = Color( COL_LIGHTRED );
aPal[ 13 ] = Color( COL_LIGHTMAGENTA );
aPal[ 14 ] = Color( COL_YELLOW );
aPal[ 15 ] = Color( COL_WHITE );
// Dither-Palette erzeugen
if( 8 == nBitCount )
{
sal_uInt16 nActCol = 16;
for( sal_uInt16 nB = 0; nB < 256; nB += 51 )
for( sal_uInt16 nG = 0; nG < 256; nG += 51 )
for( sal_uInt16 nR = 0; nR < 256; nR += 51 )
aPal[ nActCol++ ] = BitmapColor( (sal_uInt8) nR, (sal_uInt8) nG, (sal_uInt8) nB );
// Standard-Office-Farbe setzen
aPal[ nActCol++ ] = BitmapColor( 0, 184, 255 );
}
}
}
else
pRealPal = (BitmapPalette*) pPal;
}
mpImpBmp = new ImpBitmap;
mpImpBmp->ImplCreate( rSizePixel, nBitCount, pRealPal ? *pRealPal : aPal );
}
else
mpImpBmp = NULL;
}
// ------------------------------------------------------------------
Bitmap::~Bitmap()
{
ImplReleaseRef();
}
// ------------------------------------------------------------------
const BitmapPalette& Bitmap::GetGreyPalette( int nEntries )
{
static BitmapPalette aGreyPalette2;
static BitmapPalette aGreyPalette4;
static BitmapPalette aGreyPalette16;
static BitmapPalette aGreyPalette256;
// create greyscale palette with 2, 4, 16 or 256 entries
if( 2 == nEntries || 4 == nEntries || 16 == nEntries || 256 == nEntries )
{
if( 2 == nEntries )
{
if( !aGreyPalette2.GetEntryCount() )
{
aGreyPalette2.SetEntryCount( 2 );
aGreyPalette2[ 0 ] = BitmapColor( 0, 0, 0 );
aGreyPalette2[ 1 ] = BitmapColor( 255, 255, 255 );
}
return aGreyPalette2;
}
else if( 4 == nEntries )
{
if( !aGreyPalette4.GetEntryCount() )
{
aGreyPalette4.SetEntryCount( 4 );
aGreyPalette4[ 0 ] = BitmapColor( 0, 0, 0 );
aGreyPalette4[ 1 ] = BitmapColor( 85, 85, 85 );
aGreyPalette4[ 2 ] = BitmapColor( 170, 170, 170 );
aGreyPalette4[ 3 ] = BitmapColor( 255, 255, 255 );
}
return aGreyPalette4;
}
else if( 16 == nEntries )
{
if( !aGreyPalette16.GetEntryCount() )
{
sal_uInt8 cGrey = 0, cGreyInc = 17;
aGreyPalette16.SetEntryCount( 16 );
for( sal_uInt16 i = 0; i < 16; i++, cGrey = sal::static_int_cast<sal_uInt8>(cGrey + cGreyInc) )
aGreyPalette16[ i ] = BitmapColor( cGrey, cGrey, cGrey );
}
return aGreyPalette16;
}
else
{
if( !aGreyPalette256.GetEntryCount() )
{
aGreyPalette256.SetEntryCount( 256 );
for( sal_uInt16 i = 0; i < 256; i++ )
aGreyPalette256[ i ] = BitmapColor( (sal_uInt8) i, (sal_uInt8) i, (sal_uInt8) i );
}
return aGreyPalette256;
}
}
else
{
DBG_ERROR( "Bitmap::GetGreyPalette: invalid entry count (2/4/16/256 allowed)" );
return aGreyPalette2;
}
}
// ------------------------------------------------------------------
bool BitmapPalette::IsGreyPalette() const
{
// TODO: add an IsGreyPalette flag to BitmapPalette
// TODO: unless this causes problems binary compatibility
const int nEntryCount = GetEntryCount();
if( !nEntryCount ) // NOTE: an empty palette means 1:1 mapping
return true;
// see above: only certain entry values will result in a valid call to GetGreyPalette
if( nEntryCount == 2 || nEntryCount == 4 || nEntryCount == 16 || nEntryCount == 256 )
{
const BitmapPalette& rGreyPalette = Bitmap::GetGreyPalette( nEntryCount );
if( rGreyPalette == *this )
return true;
}
// TODO: is it worth to compare the entries?
return false;
}
// ------------------------------------------------------------------
Bitmap& Bitmap::operator=( const Bitmap& rBitmap )
{
maPrefSize = rBitmap.maPrefSize;
maPrefMapMode = rBitmap.maPrefMapMode;
if ( rBitmap.mpImpBmp )
rBitmap.mpImpBmp->ImplIncRefCount();
ImplReleaseRef();
mpImpBmp = rBitmap.mpImpBmp;
return *this;
}
// ------------------------------------------------------------------
sal_Bool Bitmap::IsEqual( const Bitmap& rBmp ) const
{
return( IsSameInstance( rBmp ) ||
( rBmp.GetSizePixel() == GetSizePixel() &&
rBmp.GetBitCount() == GetBitCount() &&
rBmp.GetChecksum() == GetChecksum() ) );
}
// ------------------------------------------------------------------
void Bitmap::SetEmpty()
{
maPrefMapMode = MapMode();
maPrefSize = Size();
ImplReleaseRef();
mpImpBmp = NULL;
}
// ------------------------------------------------------------------
Size Bitmap::GetSizePixel() const
{
return( mpImpBmp ? mpImpBmp->ImplGetSize() : Size() );
}
// ------------------------------------------------------------------
void Bitmap::SetSizePixel( const Size& rNewSize, sal_uInt32 nScaleFlag )
{
if(GetSizePixel() != rNewSize)
{
Scale( rNewSize, nScaleFlag );
}
}
// ------------------------------------------------------------------
Size Bitmap::GetSourceSizePixel() const
{
return( mpImpBmp ? mpImpBmp->ImplGetSourceSize() : Size() );
}
// ------------------------------------------------------------------
void Bitmap::SetSourceSizePixel( const Size& rSize)
{
if( mpImpBmp )
mpImpBmp->ImplSetSourceSize( rSize);
}
// ------------------------------------------------------------------
sal_uInt16 Bitmap::GetBitCount() const
{
return( mpImpBmp ? mpImpBmp->ImplGetBitCount() : 0 );
}
// ------------------------------------------------------------------
sal_Bool Bitmap::HasGreyPalette() const
{
const sal_uInt16 nBitCount = GetBitCount();
sal_Bool bRet = sal_False;
if( 1 == nBitCount )
{
BitmapReadAccess* pRAcc = ( (Bitmap*) this )->AcquireReadAccess();
if( pRAcc )
{
const BitmapColor& rCol0( pRAcc->GetPaletteColor( 0 ) );
const BitmapColor& rCol1( pRAcc->GetPaletteColor( 1 ) );
if( rCol0.GetRed() == rCol0.GetGreen() && rCol0.GetRed() == rCol0.GetBlue() &&
rCol1.GetRed() == rCol1.GetGreen() && rCol1.GetRed() == rCol1.GetBlue() )
{
bRet = sal_True;
}
( (Bitmap*) this )->ReleaseAccess( pRAcc );
}
else
bRet = sal_True;
}
else if( 4 == nBitCount || 8 == nBitCount )
{
BitmapReadAccess* pRAcc = ( (Bitmap*) this )->AcquireReadAccess();
if( pRAcc )
{
if( pRAcc->HasPalette() && ( (BitmapPalette&) pRAcc->GetPalette() == GetGreyPalette( 1 << nBitCount ) ) )
bRet = sal_True;
( (Bitmap*) this )->ReleaseAccess( pRAcc );
}
}
return bRet;
}
// ------------------------------------------------------------------
sal_uLong Bitmap::GetChecksum() const
{
sal_uLong nRet = 0UL;
if( mpImpBmp )
{
nRet = mpImpBmp->ImplGetChecksum();
if( !nRet )
{
BitmapReadAccess* pRAcc = ( (Bitmap*) this )->AcquireReadAccess();
if( pRAcc && pRAcc->Width() && pRAcc->Height() )
{
sal_uInt32 nCrc = 0;
SVBT32 aBT32;
pRAcc->ImplZeroInitUnusedBits();
UInt32ToSVBT32( pRAcc->Width(), aBT32 );
nCrc = rtl_crc32( nCrc, aBT32, 4 );
UInt32ToSVBT32( pRAcc->Height(), aBT32 );
nCrc = rtl_crc32( nCrc, aBT32, 4 );
UInt32ToSVBT32( pRAcc->GetBitCount(), aBT32 );
nCrc = rtl_crc32( nCrc, aBT32, 4 );
UInt32ToSVBT32( pRAcc->GetColorMask().GetRedMask(), aBT32 );
nCrc = rtl_crc32( nCrc, aBT32, 4 );
UInt32ToSVBT32( pRAcc->GetColorMask().GetGreenMask(), aBT32 );
nCrc = rtl_crc32( nCrc, aBT32, 4 );
UInt32ToSVBT32( pRAcc->GetColorMask().GetBlueMask(), aBT32 );
nCrc = rtl_crc32( nCrc, aBT32, 4 );
if( pRAcc->HasPalette() )
{
nCrc = rtl_crc32( nCrc, pRAcc->GetPalette().ImplGetColorBuffer(),
pRAcc->GetPaletteEntryCount() * sizeof( BitmapColor ) );
}
nCrc = rtl_crc32( nCrc, pRAcc->GetBuffer(), pRAcc->GetScanlineSize() * pRAcc->Height() );
mpImpBmp->ImplSetChecksum( nRet = nCrc );
}
if (pRAcc) ( (Bitmap*) this )->ReleaseAccess( pRAcc );
}
}
return nRet;
}
// ------------------------------------------------------------------
void Bitmap::ImplReleaseRef()
{
if( mpImpBmp )
{
if( mpImpBmp->ImplGetRefCount() > 1UL )
mpImpBmp->ImplDecRefCount();
else
{
delete mpImpBmp;
mpImpBmp = NULL;
}
}
}
// ------------------------------------------------------------------
void Bitmap::ImplMakeUnique()
{
if( mpImpBmp && mpImpBmp->ImplGetRefCount() > 1UL )
{
ImpBitmap* pOldImpBmp = mpImpBmp;
pOldImpBmp->ImplDecRefCount();
mpImpBmp = new ImpBitmap;
mpImpBmp->ImplCreate( *pOldImpBmp );
}
}
// ------------------------------------------------------------------
void Bitmap::ImplAssignWithSize( const Bitmap& rBitmap )
{
const Size aOldSizePix( GetSizePixel() );
const Size aNewSizePix( rBitmap.GetSizePixel() );
const MapMode aOldMapMode( maPrefMapMode );
Size aNewPrefSize;
if( ( aOldSizePix != aNewSizePix ) && aOldSizePix.Width() && aOldSizePix.Height() )
{
aNewPrefSize.Width() = FRound( maPrefSize.Width() * aNewSizePix.Width() / aOldSizePix.Width() );
aNewPrefSize.Height() = FRound( maPrefSize.Height() * aNewSizePix.Height() / aOldSizePix.Height() );
}
else
aNewPrefSize = maPrefSize;
*this = rBitmap;
maPrefSize = aNewPrefSize;
maPrefMapMode = aOldMapMode;
}
// ------------------------------------------------------------------
ImpBitmap* Bitmap::ImplGetImpBitmap() const
{
return mpImpBmp;
}
// ------------------------------------------------------------------
void Bitmap::ImplSetImpBitmap( ImpBitmap* pImpBmp )
{
if( pImpBmp != mpImpBmp )
{
ImplReleaseRef();
mpImpBmp = pImpBmp;
}
}
// ------------------------------------------------------------------
BitmapReadAccess* Bitmap::AcquireReadAccess()
{
BitmapReadAccess* pReadAccess = new BitmapReadAccess( *this );
if( !*pReadAccess )
{
delete pReadAccess;
pReadAccess = NULL;
}
return pReadAccess;
}
// ------------------------------------------------------------------
BitmapWriteAccess* Bitmap::AcquireWriteAccess()
{
BitmapWriteAccess* pWriteAccess = new BitmapWriteAccess( *this );
if( !*pWriteAccess )
{
delete pWriteAccess;
pWriteAccess = NULL;
}
return pWriteAccess;
}
// ------------------------------------------------------------------
void Bitmap::ReleaseAccess( BitmapReadAccess* pBitmapAccess )
{
delete pBitmapAccess;
}
// ------------------------------------------------------------------
sal_Bool Bitmap::Erase( const Color& rFillColor )
{
if( !(*this) )
return sal_True;
BitmapWriteAccess* pWriteAcc = AcquireWriteAccess();
sal_Bool bRet = sal_False;
if( pWriteAcc )
{
const sal_uLong nFormat = pWriteAcc->GetScanlineFormat();
sal_uInt8 cIndex = 0;
sal_Bool bFast = sal_False;
switch( nFormat )
{
case( BMP_FORMAT_1BIT_MSB_PAL ):
case( BMP_FORMAT_1BIT_LSB_PAL ):
{
cIndex = (sal_uInt8) pWriteAcc->GetBestPaletteIndex( rFillColor );
cIndex = ( cIndex ? 255 : 0 );
bFast = sal_True;
}
break;
case( BMP_FORMAT_4BIT_MSN_PAL ):
case( BMP_FORMAT_4BIT_LSN_PAL ):
{
cIndex = (sal_uInt8) pWriteAcc->GetBestPaletteIndex( rFillColor );
cIndex = cIndex | ( cIndex << 4 );
bFast = sal_True;
}
break;
case( BMP_FORMAT_8BIT_PAL ):
{
cIndex = (sal_uInt8) pWriteAcc->GetBestPaletteIndex( rFillColor );
bFast = sal_True;
}
break;
case( BMP_FORMAT_24BIT_TC_BGR ):
case( BMP_FORMAT_24BIT_TC_RGB ):
{
if( ( rFillColor.GetRed() == rFillColor.GetGreen() ) &&
( rFillColor.GetRed() == rFillColor.GetBlue() ) )
{
cIndex = rFillColor.GetRed();
bFast = sal_True;
}
else
bFast = sal_False;
}
break;
default:
bFast = sal_False;
break;
}
if( bFast )
{
const sal_uLong nBufSize = pWriteAcc->GetScanlineSize() * pWriteAcc->Height();
memset( pWriteAcc->GetBuffer(), cIndex, nBufSize );
}
else
{
Point aTmpPoint;
const Rectangle aRect( aTmpPoint, Size( pWriteAcc->Width(), pWriteAcc->Height() ) );
pWriteAcc->SetFillColor( rFillColor );
pWriteAcc->FillRect( aRect );
}
ReleaseAccess( pWriteAcc );
bRet = sal_True;
}
return bRet;
}
// ------------------------------------------------------------------
sal_Bool Bitmap::Invert()
{
BitmapWriteAccess* pAcc = AcquireWriteAccess();
sal_Bool bRet = sal_False;
if( pAcc )
{
if( pAcc->HasPalette() )
{
BitmapPalette aBmpPal( pAcc->GetPalette() );
const sal_uInt16 nCount = aBmpPal.GetEntryCount();
for( sal_uInt16 i = 0; i < nCount; i++ )
aBmpPal[ i ].Invert();
pAcc->SetPalette( aBmpPal );
}
else
{
const long nWidth = pAcc->Width();
const long nHeight = pAcc->Height();
for( long nX = 0L; nX < nWidth; nX++ )
for( long nY = 0L; nY < nHeight; nY++ )
pAcc->SetPixel( nY, nX, pAcc->GetPixel( nY, nX ).Invert() );
}
ReleaseAccess( pAcc );
bRet = sal_True;
}
return bRet;
}
// ------------------------------------------------------------------
sal_Bool Bitmap::Mirror( sal_uLong nMirrorFlags )
{
sal_Bool bHorz = ( ( nMirrorFlags & BMP_MIRROR_HORZ ) == BMP_MIRROR_HORZ );
sal_Bool bVert = ( ( nMirrorFlags & BMP_MIRROR_VERT ) == BMP_MIRROR_VERT );
sal_Bool bRet = sal_False;
if( bHorz && !bVert )
{
BitmapWriteAccess* pAcc = AcquireWriteAccess();
if( pAcc )
{
const long nWidth = pAcc->Width();
const long nHeight = pAcc->Height();
const long nWidth1 = nWidth - 1L;
const long nWidth_2 = nWidth >> 1L;
for( long nY = 0L; nY < nHeight; nY++ )
{
for( long nX = 0L, nOther = nWidth1; nX < nWidth_2; nX++, nOther-- )
{
const BitmapColor aTemp( pAcc->GetPixel( nY, nX ) );
pAcc->SetPixel( nY, nX, pAcc->GetPixel( nY, nOther ) );
pAcc->SetPixel( nY, nOther, aTemp );
}
}
ReleaseAccess( pAcc );
bRet = sal_True;
}
}
else if( bVert && !bHorz )
{
BitmapWriteAccess* pAcc = AcquireWriteAccess();
if( pAcc )
{
const long nScanSize = pAcc->GetScanlineSize();
sal_uInt8* pBuffer = new sal_uInt8[ nScanSize ];
const long nHeight = pAcc->Height();
const long nHeight1 = nHeight - 1L;
const long nHeight_2 = nHeight >> 1L;
for( long nY = 0L, nOther = nHeight1; nY < nHeight_2; nY++, nOther-- )
{
memcpy( pBuffer, pAcc->GetScanline( nY ), nScanSize );
memcpy( pAcc->GetScanline( nY ), pAcc->GetScanline( nOther ), nScanSize );
memcpy( pAcc->GetScanline( nOther ), pBuffer, nScanSize );
}
delete[] pBuffer;
ReleaseAccess( pAcc );
bRet = sal_True;
}
}
else if( bHorz && bVert )
{
BitmapWriteAccess* pAcc = AcquireWriteAccess();
if( pAcc )
{
const long nWidth = pAcc->Width();
const long nWidth1 = nWidth - 1L;
const long nHeight = pAcc->Height();
long nHeight_2 = nHeight >> 1;
for( long nY = 0L, nOtherY = nHeight - 1L; nY < nHeight_2; nY++, nOtherY-- )
{
for( long nX = 0L, nOtherX = nWidth1; nX < nWidth; nX++, nOtherX-- )
{
const BitmapColor aTemp( pAcc->GetPixel( nY, nX ) );
pAcc->SetPixel( nY, nX, pAcc->GetPixel( nOtherY, nOtherX ) );
pAcc->SetPixel( nOtherY, nOtherX, aTemp );
}
}
// ggf. noch mittlere Zeile horizontal spiegeln
if( nHeight & 1 )
{
for( long nX = 0L, nOtherX = nWidth1, nWidth_2 = nWidth >> 1; nX < nWidth_2; nX++, nOtherX-- )
{
const BitmapColor aTemp( pAcc->GetPixel( nHeight_2, nX ) );
pAcc->SetPixel( nHeight_2, nX, pAcc->GetPixel( nHeight_2, nOtherX ) );
pAcc->SetPixel( nHeight_2, nOtherX, aTemp );
}
}
ReleaseAccess( pAcc );
bRet = sal_True;
}
}
else
bRet = sal_True;
return bRet;
}
// ------------------------------------------------------------------
sal_Bool Bitmap::Rotate( long nAngle10, const Color& rFillColor )
{
sal_Bool bRet = sal_False;
nAngle10 %= 3600L;
nAngle10 = ( nAngle10 < 0L ) ? ( 3599L + nAngle10 ) : nAngle10;
if( !nAngle10 )
bRet = sal_True;
else if( 1800L == nAngle10 )
bRet = Mirror( BMP_MIRROR_HORZ | BMP_MIRROR_VERT );
else
{
BitmapReadAccess* pReadAcc = AcquireReadAccess();
Bitmap aRotatedBmp;
if( pReadAcc )
{
const Size aSizePix( GetSizePixel() );
if( ( 900L == nAngle10 ) || ( 2700L == nAngle10 ) )
{
const Size aNewSizePix( aSizePix.Height(), aSizePix.Width() );
Bitmap aNewBmp( aNewSizePix, GetBitCount(), &pReadAcc->GetPalette() );
BitmapWriteAccess* pWriteAcc = aNewBmp.AcquireWriteAccess();
if( pWriteAcc )
{
const long nWidth = aSizePix.Width();
const long nWidth1 = nWidth - 1L;
const long nHeight = aSizePix.Height();
const long nHeight1 = nHeight - 1L;
const long nNewWidth = aNewSizePix.Width();
const long nNewHeight = aNewSizePix.Height();
if( 900L == nAngle10 )
{
for( long nY = 0L, nOtherX = nWidth1; nY < nNewHeight; nY++, nOtherX-- )
for( long nX = 0L, nOtherY = 0L; nX < nNewWidth; nX++ )
pWriteAcc->SetPixel( nY, nX, pReadAcc->GetPixel( nOtherY++, nOtherX ) );
}
else if( 2700L == nAngle10 )
{
for( long nY = 0L, nOtherX = 0L; nY < nNewHeight; nY++, nOtherX++ )
for( long nX = 0L, nOtherY = nHeight1; nX < nNewWidth; nX++ )
pWriteAcc->SetPixel( nY, nX, pReadAcc->GetPixel( nOtherY--, nOtherX ) );
}
aNewBmp.ReleaseAccess( pWriteAcc );
}
aRotatedBmp = aNewBmp;
}
else
{
Point aTmpPoint;
Rectangle aTmpRectangle( aTmpPoint, aSizePix );
Polygon aPoly( aTmpRectangle );
aPoly.Rotate( aTmpPoint, (sal_uInt16) nAngle10 );
Rectangle aNewBound( aPoly.GetBoundRect() );
const Size aNewSizePix( aNewBound.GetSize() );
Bitmap aNewBmp( aNewSizePix, GetBitCount(), &pReadAcc->GetPalette() );
BitmapWriteAccess* pWriteAcc = aNewBmp.AcquireWriteAccess();
if( pWriteAcc )
{
const BitmapColor aFillColor( pWriteAcc->GetBestMatchingColor( rFillColor ) );
const double fCosAngle = cos( nAngle10 * F_PI1800 );
const double fSinAngle = sin( nAngle10 * F_PI1800 );
const double fXMin = aNewBound.Left();
const double fYMin = aNewBound.Top();
const long nWidth = aSizePix.Width();
const long nHeight = aSizePix.Height();
const long nNewWidth = aNewSizePix.Width();
const long nNewHeight = aNewSizePix.Height();
long nX;
long nY;
long nRotX;
long nRotY;
long nSinY;
long nCosY;
long* pCosX = new long[ nNewWidth ];
long* pSinX = new long[ nNewWidth ];
long* pCosY = new long[ nNewHeight ];
long* pSinY = new long[ nNewHeight ];
for ( nX = 0; nX < nNewWidth; nX++ )
{
const double fTmp = ( fXMin + nX ) * 64.;
pCosX[ nX ] = FRound( fCosAngle * fTmp );
pSinX[ nX ] = FRound( fSinAngle * fTmp );
}
for ( nY = 0; nY < nNewHeight; nY++ )
{
const double fTmp = ( fYMin + nY ) * 64.;
pCosY[ nY ] = FRound( fCosAngle * fTmp );
pSinY[ nY ] = FRound( fSinAngle * fTmp );
}
for( nY = 0L; nY < nNewHeight; nY++ )
{
nSinY = pSinY[ nY ];
nCosY = pCosY[ nY ];
for( nX = 0L; nX < nNewWidth; nX++ )
{
nRotX = ( pCosX[ nX ] - nSinY ) >> 6;
nRotY = ( pSinX[ nX ] + nCosY ) >> 6;
if ( ( nRotX > -1L ) && ( nRotX < nWidth ) && ( nRotY > -1L ) && ( nRotY < nHeight ) )
pWriteAcc->SetPixel( nY, nX, pReadAcc->GetPixel( nRotY, nRotX ) );
else
pWriteAcc->SetPixel( nY, nX, aFillColor );
}
}
delete[] pSinX;
delete[] pCosX;
delete[] pSinY;
delete[] pCosY;
aNewBmp.ReleaseAccess( pWriteAcc );
}
aRotatedBmp = aNewBmp;
}
ReleaseAccess( pReadAcc );
}
if( ( bRet = !!aRotatedBmp ) == sal_True )
ImplAssignWithSize( aRotatedBmp );
}
return bRet;
};
// ------------------------------------------------------------------
sal_Bool Bitmap::Crop( const Rectangle& rRectPixel )
{
const Size aSizePix( GetSizePixel() );
Rectangle aRect( rRectPixel );
sal_Bool bRet = sal_False;
aRect.Intersection( Rectangle( Point(), aSizePix ) );
if( !aRect.IsEmpty() )
{
BitmapReadAccess* pReadAcc = AcquireReadAccess();
if( pReadAcc )
{
Point aTmpPoint;
const Rectangle aNewRect( aTmpPoint, aRect.GetSize() );
Bitmap aNewBmp( aNewRect.GetSize(), GetBitCount(), &pReadAcc->GetPalette() );
BitmapWriteAccess* pWriteAcc = aNewBmp.AcquireWriteAccess();
if( pWriteAcc )
{
const long nOldX = aRect.Left();
const long nOldY = aRect.Top();
const long nNewWidth = aNewRect.GetWidth();
const long nNewHeight = aNewRect.GetHeight();
for( long nY = 0, nY2 = nOldY; nY < nNewHeight; nY++, nY2++ )
for( long nX = 0, nX2 = nOldX; nX < nNewWidth; nX++, nX2++ )
pWriteAcc->SetPixel( nY, nX, pReadAcc->GetPixel( nY2, nX2 ) );
aNewBmp.ReleaseAccess( pWriteAcc );
bRet = sal_True;
}
ReleaseAccess( pReadAcc );
if( bRet )
ImplAssignWithSize( aNewBmp );
}
}
return bRet;
};
// ------------------------------------------------------------------
sal_Bool Bitmap::CopyPixel( const Rectangle& rRectDst,
const Rectangle& rRectSrc, const Bitmap* pBmpSrc )
{
const Size aSizePix( GetSizePixel() );
Rectangle aRectDst( rRectDst );
sal_Bool bRet = sal_False;
aRectDst.Intersection( Rectangle( Point(), aSizePix ) );
if( !aRectDst.IsEmpty() )
{
if( pBmpSrc && ( *pBmpSrc != *this ) )
{
Bitmap* pSrc = (Bitmap*) pBmpSrc;
const Size aCopySizePix( pSrc->GetSizePixel() );
Rectangle aRectSrc( rRectSrc );
const sal_uInt16 nSrcBitCount = pBmpSrc->GetBitCount();
const sal_uInt16 nDstBitCount = GetBitCount();
if( nSrcBitCount > nDstBitCount )
{
long nNextIndex = 0L;
if( ( nSrcBitCount == 24 ) && ( nDstBitCount < 24 ) )
Convert( BMP_CONVERSION_24BIT );
else if( ( nSrcBitCount == 8 ) && ( nDstBitCount < 8 ) )
{
Convert( BMP_CONVERSION_8BIT_COLORS );
nNextIndex = 16;
}
else if( ( nSrcBitCount == 4 ) && ( nDstBitCount < 4 ) )
{
Convert( BMP_CONVERSION_4BIT_COLORS );
nNextIndex = 2;
}
if( nNextIndex )
{
BitmapReadAccess* pSrcAcc = pSrc->AcquireReadAccess();
BitmapWriteAccess* pDstAcc = AcquireWriteAccess();
if( pSrcAcc && pDstAcc )
{
const long nSrcCount = pDstAcc->GetPaletteEntryCount();
const long nDstCount = 1 << nDstBitCount;
sal_Bool bFound;
for( long i = 0L; ( i < nSrcCount ) && ( nNextIndex < nSrcCount ); i++ )
{
const BitmapColor& rSrcCol = pSrcAcc->GetPaletteColor( (sal_uInt16) i );
bFound = sal_False;
for( long j = 0L; j < nDstCount; j++ )
{
if( rSrcCol == pDstAcc->GetPaletteColor( (sal_uInt16) j ) )
{
bFound = sal_True;
break;
}
}
if( !bFound )
pDstAcc->SetPaletteColor( (sal_uInt16) nNextIndex++, rSrcCol );
}
}
if( pSrcAcc )
pSrc->ReleaseAccess( pSrcAcc );
if( pDstAcc )
ReleaseAccess( pDstAcc );
}
}
aRectSrc.Intersection( Rectangle( Point(), aCopySizePix ) );
if( !aRectSrc.IsEmpty() )
{
BitmapReadAccess* pReadAcc = pSrc->AcquireReadAccess();
if( pReadAcc )
{
BitmapWriteAccess* pWriteAcc = AcquireWriteAccess();
if( pWriteAcc )
{
const long nWidth = Min( aRectSrc.GetWidth(), aRectDst.GetWidth() );
const long nHeight = Min( aRectSrc.GetHeight(), aRectDst.GetHeight() );
const long nSrcEndX = aRectSrc.Left() + nWidth;
const long nSrcEndY = aRectSrc.Top() + nHeight;
long nDstY = aRectDst.Top();
if( pReadAcc->HasPalette() && pWriteAcc->HasPalette() )
{
const sal_uInt16 nCount = pReadAcc->GetPaletteEntryCount();
sal_uInt8* pMap = new sal_uInt8[ nCount ];
// Index-Map fuer Farbtabelle
// aufbauen, da das Bild ja (relativ) farbgenau
// kopiert werden soll
for( sal_uInt16 i = 0; i < nCount; i++ )
pMap[ i ] = (sal_uInt8) pWriteAcc->GetBestPaletteIndex( pReadAcc->GetPaletteColor( i ) );
for( long nSrcY = aRectSrc.Top(); nSrcY < nSrcEndY; nSrcY++, nDstY++ )
for( long nSrcX = aRectSrc.Left(), nDstX = aRectDst.Left(); nSrcX < nSrcEndX; nSrcX++, nDstX++ )
pWriteAcc->SetPixelIndex( nDstY, nDstX, pMap[ pReadAcc->GetPixelIndex( nSrcY, nSrcX ) ] );
delete[] pMap;
}
else if( pReadAcc->HasPalette() )
{
for( long nSrcY = aRectSrc.Top(); nSrcY < nSrcEndY; nSrcY++, nDstY++ )
for( long nSrcX = aRectSrc.Left(), nDstX = aRectDst.Left(); nSrcX < nSrcEndX; nSrcX++, nDstX++ )
pWriteAcc->SetPixel( nDstY, nDstX, pReadAcc->GetPaletteColor( pReadAcc->GetPixelIndex( nSrcY, nSrcX ) ) );
}
else
for( long nSrcY = aRectSrc.Top(); nSrcY < nSrcEndY; nSrcY++, nDstY++ )
for( long nSrcX = aRectSrc.Left(), nDstX = aRectDst.Left(); nSrcX < nSrcEndX; nSrcX++, nDstX++ )
pWriteAcc->SetPixel( nDstY, nDstX, pReadAcc->GetPixel( nSrcY, nSrcX ) );
ReleaseAccess( pWriteAcc );
bRet = ( nWidth > 0L ) && ( nHeight > 0L );
}
pSrc->ReleaseAccess( pReadAcc );
}
}
}
else
{
Rectangle aRectSrc( rRectSrc );
aRectSrc.Intersection( Rectangle( Point(), aSizePix ) );
if( !aRectSrc.IsEmpty() && ( aRectSrc != aRectDst ) )
{
BitmapWriteAccess* pWriteAcc = AcquireWriteAccess();
if( pWriteAcc )
{
const long nWidth = Min( aRectSrc.GetWidth(), aRectDst.GetWidth() );
const long nHeight = Min( aRectSrc.GetHeight(), aRectDst.GetHeight() );
const long nSrcX = aRectSrc.Left();
const long nSrcY = aRectSrc.Top();
const long nSrcEndX1 = nSrcX + nWidth - 1L;
const long nSrcEndY1 = nSrcY + nHeight - 1L;
const long nDstX = aRectDst.Left();
const long nDstY = aRectDst.Top();
const long nDstEndX1 = nDstX + nWidth - 1L;
const long nDstEndY1 = nDstY + nHeight - 1L;
if( ( nDstX <= nSrcX ) && ( nDstY <= nSrcY ) )
{
for( long nY = nSrcY, nYN = nDstY; nY <= nSrcEndY1; nY++, nYN++ )
for( long nX = nSrcX, nXN = nDstX; nX <= nSrcEndX1; nX++, nXN++ )
pWriteAcc->SetPixel( nYN, nXN, pWriteAcc->GetPixel( nY, nX ) );
}
else if( ( nDstX <= nSrcX ) && ( nDstY >= nSrcY ) )
{
for( long nY = nSrcEndY1, nYN = nDstEndY1; nY >= nSrcY; nY--, nYN-- )
for( long nX = nSrcX, nXN = nDstX; nX <= nSrcEndX1; nX++, nXN++ )
pWriteAcc->SetPixel( nYN, nXN, pWriteAcc->GetPixel( nY, nX ) );
}
else if( ( nDstX >= nSrcX ) && ( nDstY <= nSrcY ) )
{
for( long nY = nSrcY, nYN = nDstY; nY <= nSrcEndY1; nY++, nYN++ )
for( long nX = nSrcEndX1, nXN = nDstEndX1; nX >= nSrcX; nX--, nXN-- )
pWriteAcc->SetPixel( nYN, nXN, pWriteAcc->GetPixel( nY, nX ) );
}
else
{
for( long nY = nSrcEndY1, nYN = nDstEndY1; nY >= nSrcY; nY--, nYN-- )
for( long nX = nSrcEndX1, nXN = nDstEndX1; nX >= nSrcX; nX--, nXN-- )
pWriteAcc->SetPixel( nYN, nXN, pWriteAcc->GetPixel( nY, nX ) );
}
ReleaseAccess( pWriteAcc );
bRet = sal_True;
}
}
}
}
return bRet;
}
// ------------------------------------------------------------------
sal_Bool Bitmap::Expand( sal_uLong nDX, sal_uLong nDY, const Color* pInitColor )
{
sal_Bool bRet = sal_False;
if( nDX || nDY )
{
const Size aSizePixel( GetSizePixel() );
const long nWidth = aSizePixel.Width();
const long nHeight = aSizePixel.Height();
const Size aNewSize( nWidth + nDX, nHeight + nDY );
BitmapReadAccess* pReadAcc = AcquireReadAccess();
if( pReadAcc )
{
BitmapPalette aBmpPal( pReadAcc->GetPalette() );
Bitmap aNewBmp( aNewSize, GetBitCount(), &aBmpPal );
BitmapWriteAccess* pWriteAcc = aNewBmp.AcquireWriteAccess();
if( pWriteAcc )
{
BitmapColor aColor;
const long nNewX = nWidth;
const long nNewY = nHeight;
const long nNewWidth = pWriteAcc->Width();
const long nNewHeight = pWriteAcc->Height();
long nX;
long nY;
if( pInitColor )
aColor = pWriteAcc->GetBestMatchingColor( *pInitColor );
for( nY = 0L; nY < nHeight; nY++ )
{
pWriteAcc->CopyScanline( nY, *pReadAcc );
if( pInitColor && nDX )
for( nX = nNewX; nX < nNewWidth; nX++ )
pWriteAcc->SetPixel( nY, nX, aColor );
}
if( pInitColor && nDY )
for( nY = nNewY; nY < nNewHeight; nY++ )
for( nX = 0; nX < nNewWidth; nX++ )
pWriteAcc->SetPixel( nY, nX, aColor );
aNewBmp.ReleaseAccess( pWriteAcc );
bRet = sal_True;
}
ReleaseAccess( pReadAcc );
if( bRet )
ImplAssignWithSize( aNewBmp );
}
}
return bRet;
}
// ------------------------------------------------------------------
Bitmap Bitmap::CreateMask( const Color& rTransColor, sal_uLong nTol ) const
{
Bitmap aNewBmp( GetSizePixel(), 1 );
BitmapWriteAccess* pWriteAcc = aNewBmp.AcquireWriteAccess();
sal_Bool bRet = sal_False;
if( pWriteAcc )
{
BitmapReadAccess* pReadAcc = ( (Bitmap*) this )->AcquireReadAccess();
if( pReadAcc )
{
const long nWidth = pReadAcc->Width();
const long nHeight = pReadAcc->Height();
const BitmapColor aBlack( pWriteAcc->GetBestMatchingColor( Color( COL_BLACK ) ) );
const BitmapColor aWhite( pWriteAcc->GetBestMatchingColor( Color( COL_WHITE ) ) );
if( !nTol )
{
const BitmapColor aTest( pReadAcc->GetBestMatchingColor( rTransColor ) );
long nX, nY, nShift;
if( pReadAcc->GetScanlineFormat() == BMP_FORMAT_4BIT_MSN_PAL ||
pReadAcc->GetScanlineFormat() == BMP_FORMAT_4BIT_LSN_PAL )
{
// optimized for 4Bit-MSN/LSN source palette
const sal_uInt8 cTest = aTest.GetIndex();
const long nShiftInit = ( ( pReadAcc->GetScanlineFormat() == BMP_FORMAT_4BIT_MSN_PAL ) ? 4 : 0 );
if( pWriteAcc->GetScanlineFormat() == BMP_FORMAT_1BIT_MSB_PAL &&
aWhite.GetIndex() == 1 )
{
// optimized for 1Bit-MSB destination palette
for( nY = 0L; nY < nHeight; nY++ )
{
Scanline pSrc = pReadAcc->GetScanline( nY );
Scanline pDst = pWriteAcc->GetScanline( nY );
for( nX = 0L, nShift = nShiftInit; nX < nWidth; nX++, nShift ^= 4 )
{
if( cTest == ( ( pSrc[ nX >> 1 ] >> nShift ) & 0x0f ) )
pDst[ nX >> 3 ] |= 1 << ( 7 - ( nX & 7 ) );
else
pDst[ nX >> 3 ] &= ~( 1 << ( 7 - ( nX & 7 ) ) );
}
}
}
else
{
for( nY = 0L; nY < nHeight; nY++ )
{
Scanline pSrc = pReadAcc->GetScanline( nY );
for( nX = 0L, nShift = nShiftInit; nX < nWidth; nX++, nShift ^= 4 )
{
if( cTest == ( ( pSrc[ nX >> 1 ] >> nShift ) & 0x0f ) )
pWriteAcc->SetPixel( nY, nX, aWhite );
else
pWriteAcc->SetPixel( nY, nX, aBlack );
}
}
}
}
else if( pReadAcc->GetScanlineFormat() == BMP_FORMAT_8BIT_PAL )
{
// optimized for 8Bit source palette
const sal_uInt8 cTest = aTest.GetIndex();
if( pWriteAcc->GetScanlineFormat() == BMP_FORMAT_1BIT_MSB_PAL &&
aWhite.GetIndex() == 1 )
{
// optimized for 1Bit-MSB destination palette
for( nY = 0L; nY < nHeight; nY++ )
{
Scanline pSrc = pReadAcc->GetScanline( nY );
Scanline pDst = pWriteAcc->GetScanline( nY );
for( nX = 0L; nX < nWidth; nX++ )
{
if( cTest == pSrc[ nX ] )
pDst[ nX >> 3 ] |= 1 << ( 7 - ( nX & 7 ) );
else
pDst[ nX >> 3 ] &= ~( 1 << ( 7 - ( nX & 7 ) ) );
}
}
}
else
{
for( nY = 0L; nY < nHeight; nY++ )
{
Scanline pSrc = pReadAcc->GetScanline( nY );
for( nX = 0L; nX < nWidth; nX++ )
{
if( cTest == pSrc[ nX ] )
pWriteAcc->SetPixel( nY, nX, aWhite );
else
pWriteAcc->SetPixel( nY, nX, aBlack );
}
}
}
}
else
{
// not optimized
for( nY = 0L; nY < nHeight; nY++ )
{
for( nX = 0L; nX < nWidth; nX++ )
{
if( aTest == pReadAcc->GetPixel( nY, nX ) )
pWriteAcc->SetPixel( nY, nX, aWhite );
else
pWriteAcc->SetPixel( nY, nX, aBlack );
}
}
}
}
else
{
BitmapColor aCol;
long nR, nG, nB;
const long nMinR = MinMax( (long) rTransColor.GetRed() - nTol, 0, 255 );
const long nMaxR = MinMax( (long) rTransColor.GetRed() + nTol, 0, 255 );
const long nMinG = MinMax( (long) rTransColor.GetGreen() - nTol, 0, 255 );
const long nMaxG = MinMax( (long) rTransColor.GetGreen() + nTol, 0, 255 );
const long nMinB = MinMax( (long) rTransColor.GetBlue() - nTol, 0, 255 );
const long nMaxB = MinMax( (long) rTransColor.GetBlue() + nTol, 0, 255 );
if( pReadAcc->HasPalette() )
{
for( long nY = 0L; nY < nHeight; nY++ )
{
for( long nX = 0L; nX < nWidth; nX++ )
{
aCol = pReadAcc->GetPaletteColor( pReadAcc->GetPixelIndex( nY, nX ) );
nR = aCol.GetRed();
nG = aCol.GetGreen();
nB = aCol.GetBlue();
if( nMinR <= nR && nMaxR >= nR &&
nMinG <= nG && nMaxG >= nG &&
nMinB <= nB && nMaxB >= nB )
{
pWriteAcc->SetPixel( nY, nX, aWhite );
}
else
pWriteAcc->SetPixel( nY, nX, aBlack );
}
}
}
else
{
for( long nY = 0L; nY < nHeight; nY++ )
{
for( long nX = 0L; nX < nWidth; nX++ )
{
aCol = pReadAcc->GetPixel( nY, nX );
nR = aCol.GetRed();
nG = aCol.GetGreen();
nB = aCol.GetBlue();
if( nMinR <= nR && nMaxR >= nR &&
nMinG <= nG && nMaxG >= nG &&
nMinB <= nB && nMaxB >= nB )
{
pWriteAcc->SetPixel( nY, nX, aWhite );
}
else
pWriteAcc->SetPixel( nY, nX, aBlack );
}
}
}
}
( (Bitmap*) this )->ReleaseAccess( pReadAcc );
bRet = sal_True;
}
aNewBmp.ReleaseAccess( pWriteAcc );
}
if( bRet )
{
aNewBmp.maPrefSize = maPrefSize;
aNewBmp.maPrefMapMode = maPrefMapMode;
}
else
aNewBmp = Bitmap();
return aNewBmp;
}
// ------------------------------------------------------------------
Region Bitmap::CreateRegion( const Color& rColor, const Rectangle& rRect ) const
{
Region aRegion;
Rectangle aRect( rRect );
BitmapReadAccess* pReadAcc = ( (Bitmap*) this )->AcquireReadAccess();
aRect.Intersection( Rectangle( Point(), GetSizePixel() ) );
aRect.Justify();
if( pReadAcc )
{
//Rectangle aSubRect;
const long nLeft = aRect.Left();
const long nTop = aRect.Top();
const long nRight = aRect.Right();
const long nBottom = aRect.Bottom();
const BitmapColor aMatch( pReadAcc->GetBestMatchingColor( rColor ) );
//RectangleVector aRectangles;
//aRegion.ImplBeginAddRect();
std::vector< long > aLine;
long nYStart(nTop);
long nY(nTop);
for( ; nY <= nBottom; nY++ )
{
//aSubRect.Top() = aSubRect.Bottom() = nY;
std::vector< long > aNewLine;
long nX(nLeft);
for( ; nX <= nRight; )
{
while( ( nX <= nRight ) && ( aMatch != pReadAcc->GetPixel( nY, nX ) ) )
nX++;
if( nX <= nRight )
{
aNewLine.push_back(nX);
//aSubRect.Left() = nX;
while( ( nX <= nRight ) && ( aMatch == pReadAcc->GetPixel( nY, nX ) ) )
nX++;
//aSubRect.Right() = nX - 1L;
aNewLine.push_back(nX - 1);
//aRegion.ImplAddRect( aSubRect );
//aRectangles.push_back(aSubRect);
//aRegion.Union(aSubRect);
}
}
if(aNewLine != aLine)
{
// need to write aLine, it's different from the next line
if(aLine.size())
{
Rectangle aSubRect;
// enter y values and proceed ystart
aSubRect.Top() = nYStart;
aSubRect.Bottom() = nY ? nY - 1 : 0;
for(sal_uInt32 a(0); a < aLine.size();)
{
aSubRect.Left() = aLine[a++];
aSubRect.Right() = aLine[a++];
aRegion.Union(aSubRect);
}
}
// copy line as new line
aLine = aNewLine;
nYStart = nY;
}
}
// write last line if used
if(aLine.size())
{
Rectangle aSubRect;
// enter y values
aSubRect.Top() = nYStart;
aSubRect.Bottom() = nY ? nY - 1 : 0;
for(sal_uInt32 a(0); a < aLine.size();)
{
aSubRect.Left() = aLine[a++];
aSubRect.Right() = aLine[a++];
aRegion.Union(aSubRect);
}
}
//aRegion.ImplEndAddRect();
//aRegion.SetRegionRectangles(aRectangles);
( (Bitmap*) this )->ReleaseAccess( pReadAcc );
}
else
aRegion = aRect;
return aRegion;
}
// ------------------------------------------------------------------
sal_Bool Bitmap::Replace( const Bitmap& rMask, const Color& rReplaceColor )
{
BitmapReadAccess* pMaskAcc = ( (Bitmap&) rMask ).AcquireReadAccess();
BitmapWriteAccess* pAcc = AcquireWriteAccess();
sal_Bool bRet = sal_False;
if( pMaskAcc && pAcc )
{
const long nWidth = Min( pMaskAcc->Width(), pAcc->Width() );
const long nHeight = Min( pMaskAcc->Height(), pAcc->Height() );
const BitmapColor aMaskWhite( pMaskAcc->GetBestMatchingColor( Color( COL_WHITE ) ) );
BitmapColor aReplace;
if( pAcc->HasPalette() )
{
const sal_uInt16 nActColors = pAcc->GetPaletteEntryCount();
const sal_uInt16 nMaxColors = 1 << pAcc->GetBitCount();
// default to the nearest color
aReplace = pAcc->GetBestMatchingColor( rReplaceColor );
// for paletted images without a matching palette entry
// look for an unused palette entry (NOTE: expensive!)
if( pAcc->GetPaletteColor( aReplace.GetIndex() ) != BitmapColor( rReplaceColor ) )
{
// if the palette has empty entries use the last one
if( nActColors < nMaxColors )
{
pAcc->SetPaletteEntryCount( nActColors + 1 );
pAcc->SetPaletteColor( nActColors, rReplaceColor );
aReplace = BitmapColor( (sal_uInt8) nActColors );
}
else
{
sal_Bool* pFlags = new sal_Bool[ nMaxColors ];
// alle Eintraege auf 0 setzen
memset( pFlags, 0, nMaxColors );
for( long nY = 0L; nY < nHeight; nY++ )
for( long nX = 0L; nX < nWidth; nX++ )
pFlags[ pAcc->GetPixelIndex( nY, nX ) ] = sal_True;
for( sal_uInt16 i = 0UL; i < nMaxColors; i++ )
{
// Hurra, wir haben einen unbenutzten Eintrag
if( !pFlags[ i ] )
{
pAcc->SetPaletteColor( (sal_uInt16) i, rReplaceColor );
aReplace = BitmapColor( (sal_uInt8) i );
}
}
delete[] pFlags;
}
}
}
else
aReplace = rReplaceColor;
for( long nY = 0L; nY < nHeight; nY++ )
for( long nX = 0L; nX < nWidth; nX++ )
if( pMaskAcc->GetPixel( nY, nX ) == aMaskWhite )
pAcc->SetPixel( nY, nX, aReplace );
bRet = sal_True;
}
( (Bitmap&) rMask ).ReleaseAccess( pMaskAcc );
ReleaseAccess( pAcc );
return bRet;
}
// ------------------------------------------------------------------
sal_Bool Bitmap::Replace( const AlphaMask& rAlpha, const Color& rMergeColor )
{
Bitmap aNewBmp( GetSizePixel(), 24 );
BitmapReadAccess* pAcc = AcquireReadAccess();
BitmapReadAccess* pAlphaAcc = ( (AlphaMask&) rAlpha ).AcquireReadAccess();
BitmapWriteAccess* pNewAcc = aNewBmp.AcquireWriteAccess();
sal_Bool bRet = sal_False;
if( pAcc && pAlphaAcc && pNewAcc )
{
BitmapColor aCol;
const long nWidth = Min( pAlphaAcc->Width(), pAcc->Width() );
const long nHeight = Min( pAlphaAcc->Height(), pAcc->Height() );
for( long nY = 0L; nY < nHeight; nY++ )
{
for( long nX = 0L; nX < nWidth; nX++ )
{
aCol = pAcc->GetColor( nY, nX );
pNewAcc->SetPixel( nY, nX, aCol.Merge( rMergeColor, 255 - pAlphaAcc->GetPixelIndex( nY, nX ) ) );
}
}
bRet = sal_True;
}
ReleaseAccess( pAcc );
( (AlphaMask&) rAlpha ).ReleaseAccess( pAlphaAcc );
aNewBmp.ReleaseAccess( pNewAcc );
if( bRet )
{
const MapMode aMap( maPrefMapMode );
const Size aSize( maPrefSize );
*this = aNewBmp;
maPrefMapMode = aMap;
maPrefSize = aSize;
}
return bRet;
}
// ------------------------------------------------------------------
sal_Bool Bitmap::Replace( const Color& rSearchColor, const Color& rReplaceColor, sal_uLong nTol )
{
// Bitmaps with 1 bit color depth can cause problems
// if they have other entries than black/white in their palette
if( 1 == GetBitCount() )
Convert( BMP_CONVERSION_4BIT_COLORS );
BitmapWriteAccess* pAcc = AcquireWriteAccess();
sal_Bool bRet = sal_False;
if( pAcc )
{
const long nMinR = MinMax( (long) rSearchColor.GetRed() - nTol, 0, 255 );
const long nMaxR = MinMax( (long) rSearchColor.GetRed() + nTol, 0, 255 );
const long nMinG = MinMax( (long) rSearchColor.GetGreen() - nTol, 0, 255 );
const long nMaxG = MinMax( (long) rSearchColor.GetGreen() + nTol, 0, 255 );
const long nMinB = MinMax( (long) rSearchColor.GetBlue() - nTol, 0, 255 );
const long nMaxB = MinMax( (long) rSearchColor.GetBlue() + nTol, 0, 255 );
if( pAcc->HasPalette() )
{
for( sal_uInt16 i = 0, nPalCount = pAcc->GetPaletteEntryCount(); i < nPalCount; i++ )
{
const BitmapColor& rCol = pAcc->GetPaletteColor( i );
if( nMinR <= rCol.GetRed() && nMaxR >= rCol.GetRed() &&
nMinG <= rCol.GetGreen() && nMaxG >= rCol.GetGreen() &&
nMinB <= rCol.GetBlue() && nMaxB >= rCol.GetBlue() )
{
pAcc->SetPaletteColor( i, rReplaceColor );
}
}
}
else
{
BitmapColor aCol;
const BitmapColor aReplace( pAcc->GetBestMatchingColor( rReplaceColor ) );
for( long nY = 0L, nHeight = pAcc->Height(); nY < nHeight; nY++ )
{
for( long nX = 0L, nWidth = pAcc->Width(); nX < nWidth; nX++ )
{
aCol = pAcc->GetPixel( nY, nX );
if( nMinR <= aCol.GetRed() && nMaxR >= aCol.GetRed() &&
nMinG <= aCol.GetGreen() && nMaxG >= aCol.GetGreen() &&
nMinB <= aCol.GetBlue() && nMaxB >= aCol.GetBlue() )
{
pAcc->SetPixel( nY, nX, aReplace );
}
}
}
}
ReleaseAccess( pAcc );
bRet = sal_True;
}
return bRet;
}
// ------------------------------------------------------------------
sal_Bool Bitmap::Replace( const Color* pSearchColors, const Color* pReplaceColors,
sal_uLong nColorCount, sal_uLong* _pTols )
{
// Bitmaps with 1 bit color depth can cause problems
// if they have other entries than black/white in their palette
if( 1 == GetBitCount() )
Convert( BMP_CONVERSION_4BIT_COLORS );
BitmapWriteAccess* pAcc = AcquireWriteAccess();
sal_Bool bRet = sal_False;
if( pAcc )
{
long* pMinR = new long[ nColorCount ];
long* pMaxR = new long[ nColorCount ];
long* pMinG = new long[ nColorCount ];
long* pMaxG = new long[ nColorCount ];
long* pMinB = new long[ nColorCount ];
long* pMaxB = new long[ nColorCount ];
long* pTols;
sal_uLong i;
if( !_pTols )
{
pTols = new long[ nColorCount ];
memset( pTols, 0, nColorCount * sizeof( long ) );
}
else
pTols = (long*) _pTols;
for( i = 0UL; i < nColorCount; i++ )
{
const Color& rCol = pSearchColors[ i ];
const long nTol = pTols[ i ];
pMinR[ i ] = MinMax( (long) rCol.GetRed() - nTol, 0, 255 );
pMaxR[ i ] = MinMax( (long) rCol.GetRed() + nTol, 0, 255 );
pMinG[ i ] = MinMax( (long) rCol.GetGreen() - nTol, 0, 255 );
pMaxG[ i ] = MinMax( (long) rCol.GetGreen() + nTol, 0, 255 );
pMinB[ i ] = MinMax( (long) rCol.GetBlue() - nTol, 0, 255 );
pMaxB[ i ] = MinMax( (long) rCol.GetBlue() + nTol, 0, 255 );
}
if( pAcc->HasPalette() )
{
for( sal_uInt16 nEntry = 0, nPalCount = pAcc->GetPaletteEntryCount(); nEntry < nPalCount; nEntry++ )
{
const BitmapColor& rCol = pAcc->GetPaletteColor( nEntry );
for( i = 0UL; i < nColorCount; i++ )
{
if( pMinR[ i ] <= rCol.GetRed() && pMaxR[ i ] >= rCol.GetRed() &&
pMinG[ i ] <= rCol.GetGreen() && pMaxG[ i ] >= rCol.GetGreen() &&
pMinB[ i ] <= rCol.GetBlue() && pMaxB[ i ] >= rCol.GetBlue() )
{
pAcc->SetPaletteColor( (sal_uInt16)nEntry, pReplaceColors[ i ] );
break;
}
}
}
}
else
{
BitmapColor aCol;
BitmapColor* pReplaces = new BitmapColor[ nColorCount ];
for( i = 0UL; i < nColorCount; i++ )
pReplaces[ i ] = pAcc->GetBestMatchingColor( pReplaceColors[ i ] );
for( long nY = 0L, nHeight = pAcc->Height(); nY < nHeight; nY++ )
{
for( long nX = 0L, nWidth = pAcc->Width(); nX < nWidth; nX++ )
{
aCol = pAcc->GetPixel( nY, nX );
for( i = 0UL; i < nColorCount; i++ )
{
if( pMinR[ i ] <= aCol.GetRed() && pMaxR[ i ] >= aCol.GetRed() &&
pMinG[ i ] <= aCol.GetGreen() && pMaxG[ i ] >= aCol.GetGreen() &&
pMinB[ i ] <= aCol.GetBlue() && pMaxB[ i ] >= aCol.GetBlue() )
{
pAcc->SetPixel( nY, nX, pReplaces[ i ] );
break;
}
}
}
}
delete[] pReplaces;
}
if( !_pTols )
delete[] pTols;
delete[] pMinR;
delete[] pMaxR;
delete[] pMinG;
delete[] pMaxG;
delete[] pMinB;
delete[] pMaxB;
ReleaseAccess( pAcc );
bRet = sal_True;
}
return bRet;
}
// ------------------------------------------------------------------
Bitmap Bitmap::CreateDisplayBitmap( OutputDevice* pDisplay )
{
Bitmap aDispBmp( *this );
if( mpImpBmp && ( pDisplay->mpGraphics || pDisplay->ImplGetGraphics() ) )
{
ImpBitmap* pImpDispBmp = new ImpBitmap;
if( pImpDispBmp->ImplCreate( *mpImpBmp, pDisplay->mpGraphics ) )
aDispBmp.ImplSetImpBitmap( pImpDispBmp );
else
delete pImpDispBmp;
}
return aDispBmp;
}
// ------------------------------------------------------------------
Bitmap Bitmap::GetColorTransformedBitmap( BmpColorMode eColorMode ) const
{
Bitmap aRet;
if( BMP_COLOR_HIGHCONTRAST == eColorMode )
{
Color* pSrcColors = NULL;
Color* pDstColors = NULL;
sal_uLong nColorCount = 0;
aRet = *this;
Image::GetColorTransformArrays( (ImageColorTransform) eColorMode, pSrcColors, pDstColors, nColorCount );
if( nColorCount && pSrcColors && pDstColors )
aRet.Replace( pSrcColors, pDstColors, nColorCount );
delete[] pSrcColors;
delete[] pDstColors;
}
else if( BMP_COLOR_MONOCHROME_BLACK == eColorMode ||
BMP_COLOR_MONOCHROME_WHITE == eColorMode )
{
aRet = *this;
aRet.MakeMono( BMP_COLOR_MONOCHROME_THRESHOLD );
}
return aRet;
}
// ------------------------------------------------------------------
sal_Bool Bitmap::CombineSimple( const Bitmap& rMask, BmpCombine eCombine )
{
BitmapReadAccess* pMaskAcc = ( (Bitmap&) rMask ).AcquireReadAccess();
BitmapWriteAccess* pAcc = AcquireWriteAccess();
sal_Bool bRet = sal_False;
if( pMaskAcc && pAcc )
{
const long nWidth = Min( pMaskAcc->Width(), pAcc->Width() );
const long nHeight = Min( pMaskAcc->Height(), pAcc->Height() );
const Color aColBlack( COL_BLACK );
BitmapColor aPixel;
BitmapColor aMaskPixel;
const BitmapColor aWhite( pAcc->GetBestMatchingColor( Color( COL_WHITE ) ) );
const BitmapColor aBlack( pAcc->GetBestMatchingColor( aColBlack ) );
const BitmapColor aMaskBlack( pMaskAcc->GetBestMatchingColor( aColBlack ) );
switch( eCombine )
{
case( BMP_COMBINE_COPY ):
{
for( long nY = 0L; nY < nHeight; nY++ ) for( long nX = 0L; nX < nWidth; nX++ )
{
if( pMaskAcc->GetPixel( nY, nX ) == aMaskBlack )
pAcc->SetPixel( nY, nX, aBlack );
else
pAcc->SetPixel( nY, nX, aWhite );
}
}
break;
case( BMP_COMBINE_INVERT ):
{
for( long nY = 0L; nY < nHeight; nY++ ) for( long nX = 0L; nX < nWidth; nX++ )
{
if( pAcc->GetPixel( nY, nX ) == aBlack )
pAcc->SetPixel( nY, nX, aWhite );
else
pAcc->SetPixel( nY, nX, aBlack );
}
}
break;
case( BMP_COMBINE_AND ):
{
for( long nY = 0L; nY < nHeight; nY++ ) for( long nX = 0L; nX < nWidth; nX++ )
{
if( pMaskAcc->GetPixel( nY, nX ) != aMaskBlack && pAcc->GetPixel( nY, nX ) != aBlack )
pAcc->SetPixel( nY, nX, aWhite );
else
pAcc->SetPixel( nY, nX, aBlack );
}
}
break;
case( BMP_COMBINE_NAND ):
{
for( long nY = 0L; nY < nHeight; nY++ ) for( long nX = 0L; nX < nWidth; nX++ )
{
if( pMaskAcc->GetPixel( nY, nX ) != aMaskBlack && pAcc->GetPixel( nY, nX ) != aBlack )
pAcc->SetPixel( nY, nX, aBlack );
else
pAcc->SetPixel( nY, nX, aWhite );
}
}
break;
case( BMP_COMBINE_OR ):
{
for( long nY = 0L; nY < nHeight; nY++ ) for( long nX = 0L; nX < nWidth; nX++ )
{
if( pMaskAcc->GetPixel( nY, nX ) != aMaskBlack || pAcc->GetPixel( nY, nX ) != aBlack )
pAcc->SetPixel( nY, nX, aWhite );
else
pAcc->SetPixel( nY, nX, aBlack );
}
}
break;
case( BMP_COMBINE_NOR ):
{
for( long nY = 0L; nY < nHeight; nY++ ) for( long nX = 0L; nX < nWidth; nX++ )
{
if( pMaskAcc->GetPixel( nY, nX ) != aMaskBlack || pAcc->GetPixel( nY, nX ) != aBlack )
pAcc->SetPixel( nY, nX, aBlack );
else
pAcc->SetPixel( nY, nX, aWhite );
}
}
break;
case( BMP_COMBINE_XOR ):
{
for( long nY = 0L; nY < nHeight; nY++ ) for( long nX = 0L; nX < nWidth; nX++ )
{
aPixel = pAcc->GetPixel( nY, nX );
aMaskPixel = pMaskAcc->GetPixel( nY, nX );
if( ( aMaskPixel != aMaskBlack && aPixel == aBlack ) ||
( aMaskPixel == aMaskBlack && aPixel != aBlack ) )
{
pAcc->SetPixel( nY, nX, aWhite );
}
else
pAcc->SetPixel( nY, nX, aBlack );
}
}
break;
case( BMP_COMBINE_NXOR ):
{
for( long nY = 0L; nY < nHeight; nY++ ) for( long nX = 0L; nX < nWidth; nX++ )
{
aPixel = pAcc->GetPixel( nY, nX );
aMaskPixel = pMaskAcc->GetPixel( nY, nX );
if( ( aMaskPixel != aMaskBlack && aPixel == aBlack ) ||
( aMaskPixel == aMaskBlack && aPixel != aBlack ) )
{
pAcc->SetPixel( nY, nX, aBlack );
}
else
pAcc->SetPixel( nY, nX, aWhite );
}
}
break;
}
bRet = sal_True;
}
( (Bitmap&) rMask ).ReleaseAccess( pMaskAcc );
ReleaseAccess( pAcc );
return bRet;
}
// ------------------------------------------------------------------
sal_Bool Bitmap::Blend( const AlphaMask& rAlpha, const Color& rBackgroundColor )
{
// TODO: Have a look at OutputDevice::ImplDrawAlpha() for some
// optimizations. Might even consolidate the code here and there.
// convert to a truecolor bitmap, if we're a paletted one. There's
// room for tradeoff decision here, maybe later for an overload (or a flag)
if( GetBitCount() <= 8 )
Convert( BMP_CONVERSION_24BIT );
BitmapReadAccess* pAlphaAcc = const_cast<AlphaMask&>(rAlpha).AcquireReadAccess();
BitmapWriteAccess* pAcc = AcquireWriteAccess();
sal_Bool bRet = sal_False;
if( pAlphaAcc && pAcc )
{
const long nWidth = Min( pAlphaAcc->Width(), pAcc->Width() );
const long nHeight = Min( pAlphaAcc->Height(), pAcc->Height() );
for( long nY = 0L; nY < nHeight; ++nY )
for( long nX = 0L; nX < nWidth; ++nX )
pAcc->SetPixel( nY, nX,
pAcc->GetPixel( nY, nX ).Merge( rBackgroundColor,
255 - pAlphaAcc->GetPixelIndex( nY, nX ) ) );
bRet = sal_True;
}
const_cast<AlphaMask&>(rAlpha).ReleaseAccess( pAlphaAcc );
ReleaseAccess( pAcc );
return bRet;
}
// ------------------------------------------------------------------
sal_Bool Bitmap::MakeMono( sal_uInt8 cThreshold )
{
return ImplMakeMono( cThreshold );
}
// ------------------------------------------------------------------
bool Bitmap::GetSystemData( BitmapSystemData& rData ) const
{
bool bRet = false;
if( mpImpBmp )
{
SalBitmap* pSalBitmap = mpImpBmp->ImplGetSalBitmap();
if( pSalBitmap )
bRet = pSalBitmap->GetSystemData( rData );
}
return bRet;
}