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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2008 by Sun Microsystems, Inc.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: bmpconv.cxx,v $
* $Revision: 1.8 $
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_vcl.hxx"
#include <vcl/bitmap.hxx>
#include <vcl/impbmpconv.hxx>
#include <vcl/svapp.hxx>
#include <vos/mutex.hxx>
#include <tools/stream.hxx>
#include <com/sun/star/script/XInvocation.hpp>
#include <com/sun/star/awt/XBitmap.hpp>
#include <cppuhelper/compbase1.hxx>
using namespace com::sun::star::uno;
using namespace com::sun::star::script;
using namespace com::sun::star::beans;
using namespace com::sun::star::reflection;
using namespace com::sun::star::awt;
using namespace rtl;
namespace vcl {
class BmpTransporter :
public cppu::WeakImplHelper1< com::sun::star::awt::XBitmap >
{
Sequence<sal_Int8> m_aBM;
com::sun::star::awt::Size m_aSize;
public:
BmpTransporter( const Bitmap& rBM );
virtual ~BmpTransporter();
virtual com::sun::star::awt::Size SAL_CALL getSize() throw();
virtual Sequence< sal_Int8 > SAL_CALL getDIB() throw();
virtual Sequence< sal_Int8 > SAL_CALL getMaskDIB() throw();
};
class BmpConverter :
public cppu::WeakImplHelper1< com::sun::star::script::XInvocation >
{
public:
BmpConverter();
virtual ~BmpConverter();
virtual Reference< XIntrospectionAccess > SAL_CALL getIntrospection() throw();
virtual void SAL_CALL setValue( const OUString& rProperty, const Any& rValue )
throw( UnknownPropertyException );
virtual Any SAL_CALL getValue( const OUString& rProperty )
throw( UnknownPropertyException );
virtual sal_Bool SAL_CALL hasMethod( const OUString& rName ) throw();
virtual sal_Bool SAL_CALL hasProperty( const OUString& rProp ) throw();
virtual Any SAL_CALL invoke( const OUString& rFunction,
const Sequence< Any >& rParams,
Sequence< sal_Int16 >& rOutParamIndex,
Sequence< Any >& rOutParam
)
throw( CannotConvertException, InvocationTargetException );
};
}
using namespace vcl;
Reference< XInvocation > vcl::createBmpConverter()
{
return static_cast<XInvocation*>(new BmpConverter());
}
BmpConverter::BmpConverter()
{
}
BmpConverter::~BmpConverter()
{
}
Reference< XIntrospectionAccess > SAL_CALL BmpConverter::getIntrospection() throw()
{
return Reference< XIntrospectionAccess >();
}
void SAL_CALL BmpConverter::setValue( const OUString&, const Any& ) throw( UnknownPropertyException )
{
throw UnknownPropertyException();
}
Any SAL_CALL BmpConverter::getValue( const OUString& ) throw( UnknownPropertyException )
{
throw UnknownPropertyException();
}
sal_Bool SAL_CALL BmpConverter::hasMethod( const OUString& rName ) throw()
{
return rName.equalsIgnoreAsciiCase( OUString::createFromAscii( "convert-bitmap-depth" ) );
}
sal_Bool SAL_CALL BmpConverter::hasProperty( const OUString& ) throw()
{
return sal_False;
}
Any SAL_CALL BmpConverter::invoke(
const OUString& rFunction,
const Sequence< Any >& rParams,
Sequence< sal_Int16 >&,
Sequence< Any >& )
throw( CannotConvertException, InvocationTargetException )
{
Any aRet;
if( rFunction.equalsIgnoreAsciiCase( OUString::createFromAscii( "convert-bitmap-depth" ) ) )
{
Reference< XBitmap > xBM;
sal_uInt16 nTargetDepth = 0;
if( rParams.getLength() != 2 )
throw CannotConvertException();
if( ! (rParams.getConstArray()[0] >>= xBM ) ||
! ( rParams.getConstArray()[1] >>= nTargetDepth ) )
throw CannotConvertException();
Sequence< sal_Int8 > aDIB = xBM->getDIB();
// call into vcl not thread safe
vos::OGuard aGuard( Application::GetSolarMutex() );
SvMemoryStream aStream( aDIB.getArray(), aDIB.getLength(), STREAM_READ | STREAM_WRITE );
Bitmap aBM;
aBM.Read( aStream, TRUE );
if( nTargetDepth < 4 )
nTargetDepth = 1;
else if( nTargetDepth < 8 )
nTargetDepth = 4;
else if( nTargetDepth >8 && nTargetDepth < 24 )
nTargetDepth = 24;
if( aBM.GetBitCount() == 24 && nTargetDepth <= 8 )
aBM.Dither( BMP_DITHER_FLOYD );
if( aBM.GetBitCount() != nTargetDepth )
{
switch( nTargetDepth )
{
case 1: aBM.Convert( BMP_CONVERSION_1BIT_THRESHOLD );break;
case 4: aBM.ReduceColors( BMP_CONVERSION_4BIT_COLORS );break;
case 8: aBM.ReduceColors( BMP_CONVERSION_8BIT_COLORS );break;
case 24: aBM.Convert( BMP_CONVERSION_24BIT );break;
}
}
xBM = new BmpTransporter( aBM );
aRet <<= xBM;
}
else
throw InvocationTargetException();
return aRet;
}
BmpTransporter::BmpTransporter( const Bitmap& rBM )
{
m_aSize.Width = rBM.GetSizePixel().Width();
m_aSize.Height = rBM.GetSizePixel().Height();
SvMemoryStream aStream;
rBM.Write( aStream, FALSE, TRUE );
m_aBM = Sequence<sal_Int8>(static_cast<const sal_Int8*>(aStream.GetData()),
aStream.GetEndOfData());
}
BmpTransporter::~BmpTransporter()
{
}
com::sun::star::awt::Size SAL_CALL BmpTransporter::getSize() throw()
{
return m_aSize;
}
Sequence< sal_Int8 > SAL_CALL BmpTransporter::getDIB() throw()
{
return m_aBM;
}
Sequence< sal_Int8 > SAL_CALL BmpTransporter::getMaskDIB() throw()
{
return Sequence< sal_Int8 >();
}
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