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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* 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 .
*/
#include "vcl/bitmap.hxx"
#include "vcl/svapp.hxx"
#include "vcl/salctype.hxx"
#include <osl/mutex.hxx>
#include "tools/stream.hxx"
#include "com/sun/star/script/XInvocation.hpp"
#include "com/sun/star/awt/XBitmap.hpp"
#include "cppuhelper/compbase1.hxx"
#include <vcl/dibtools.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;
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("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("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
SolarMutexGuard aGuard;
SvMemoryStream aStream( aDIB.getArray(), aDIB.getLength(), STREAM_READ | STREAM_WRITE );
Bitmap aBM;
ReadDIB(aBM, 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;
WriteDIB(rBM, 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 >();
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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