/* -*- 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 <com/sun/star/lang/DisposedException.hpp>
#include <com/sun/star/embed/EmbedStates.hpp>
#include <com/sun/star/embed/EmbedMapUnits.hpp>
#include <com/sun/star/embed/EmbedMisc.hpp>
#include <com/sun/star/embed/Aspects.hpp>
#include <com/sun/star/embed/WrongStateException.hpp>
#include <com/sun/star/io/XSeekable.hpp>
#include <com/sun/star/embed/NoVisualAreaSizeException.hpp>
#include <oleembobj.hxx>
#include <comphelper/mimeconfighelper.hxx>
#include <comphelper/seqstream.hxx>
#include <filter/msfilter/classids.hxx>
#include <sal/log.hxx>
#if defined(_WIN32)
#include "olecomponent.hxx"
#endif
using namespace ::com::sun::star;
using namespace ::comphelper;
embed::VisualRepresentation OleEmbeddedObject::GetVisualRepresentationInNativeFormat_Impl(
const uno::Reference< io::XStream >& xCachedVisRepr )
{
embed::VisualRepresentation aVisualRepr;
// TODO: detect the format in the future for now use workaround
uno::Reference< io::XInputStream > xInStream = xCachedVisRepr->getInputStream();
if ( !xInStream.is() )
throw uno::RuntimeException();
uno::Reference< io::XSeekable > xSeekable( xCachedVisRepr, uno::UNO_QUERY_THROW );
uno::Sequence< sal_Int8 > aSeq( 2 );
xInStream->readBytes( aSeq, 2 );
xSeekable->seek( 0 );
if ( aSeq.getLength() == 2 && aSeq[0] == 'B' && aSeq[1] == 'M' )
{
// it's a bitmap
aVisualRepr.Flavor = datatransfer::DataFlavor(
"application/x-openoffice-bitmap;windows_formatname=\"Bitmap\"",
"Bitmap",
cppu::UnoType<uno::Sequence< sal_Int8 >>::get() );
}
else
{
// it's a metafile
aVisualRepr.Flavor = datatransfer::DataFlavor(
"application/x-openoffice-wmf;windows_formatname=\"Image WMF\"",
"Windows Metafile",
cppu::UnoType<uno::Sequence< sal_Int8 >>::get() );
}
sal_Int32 nStreamLength = static_cast<sal_Int32>(xSeekable->getLength());
uno::Sequence< sal_Int8 > aRepresent( nStreamLength );
xInStream->readBytes( aRepresent, nStreamLength );
aVisualRepr.Data <<= aRepresent;
return aVisualRepr;
}
void SAL_CALL OleEmbeddedObject::setVisualAreaSize( sal_Int64 nAspect, const awt::Size& aSize )
{
// begin wrapping related part ====================
uno::Reference< embed::XEmbeddedObject > xWrappedObject = m_xWrappedObject;
if ( xWrappedObject.is() )
{
// the object was converted to OOo embedded object, the current implementation is now only a wrapper
xWrappedObject->setVisualAreaSize( nAspect, aSize );
return;
}
// end wrapping related part ====================
::osl::ResettableMutexGuard aGuard( m_aMutex );
if ( m_bDisposed )
throw lang::DisposedException(); // TODO
SAL_WARN_IF( nAspect == embed::Aspects::MSOLE_ICON, "embeddedobj.ole", "For iconified objects no graphical replacement is required!" );
if ( nAspect == embed::Aspects::MSOLE_ICON )
// no representation can be retrieved
throw embed::WrongStateException( "Illegal call!",
static_cast< ::cppu::OWeakObject* >(this) );
if ( m_nObjectState == -1 )
throw embed::WrongStateException( "The object is not loaded!",
static_cast< ::cppu::OWeakObject* >(this) );
#ifdef _WIN32
// RECOMPOSE_ON_RESIZE misc flag means that the object has to be switched to running state on resize.
// SetExtent() is called only for objects that require it,
// it should not be called for MSWord documents to workaround problem i49369
// If cached size is not set, that means that this is the size initialization, so there is no need to set the real size
bool bAllowToSetExtent =
( ( getStatus( nAspect ) & embed::EmbedMisc::MS_EMBED_RECOMPOSEONRESIZE )
&& !MimeConfigurationHelper::ClassIDsEqual(m_aClassID, MimeConfigurationHelper::GetSequenceClassID(MSO_WW8_CLASSID))
&& m_bHasCachedSize );
if ( m_nObjectState == embed::EmbedStates::LOADED && bAllowToSetExtent )
{
aGuard.clear();
try {
changeState( embed::EmbedStates::RUNNING );
}
catch( const uno::Exception& )
{
SAL_WARN( "embeddedobj.ole", "The object should not be resized without activation!" );
}
aGuard.reset();
}
if ( m_pOleComponent && m_nObjectState != embed::EmbedStates::LOADED && bAllowToSetExtent )
{
awt::Size aSizeToSet = aSize;
aGuard.clear();
try {
m_pOleComponent->SetExtent( aSizeToSet, nAspect ); // will throw an exception in case of failure
m_bHasSizeToSet = false;
}
catch( const uno::Exception& )
{
// some objects do not allow to set the size even in running state
m_bHasSizeToSet = true;
m_aSizeToSet = aSizeToSet;
m_nAspectToSet = nAspect;
}
aGuard.reset();
}
#endif
// cache the values
m_bHasCachedSize = true;
m_aCachedSize = aSize;
m_nCachedAspect = nAspect;
}
awt::Size SAL_CALL OleEmbeddedObject::getVisualAreaSize( sal_Int64 nAspect )
{
// begin wrapping related part ====================
uno::Reference< embed::XEmbeddedObject > xWrappedObject = m_xWrappedObject;
if ( xWrappedObject.is() )
{
// the object was converted to OOo embedded object, the current implementation is now only a wrapper
return xWrappedObject->getVisualAreaSize( nAspect );
}
// end wrapping related part ====================
::osl::ResettableMutexGuard aGuard( m_aMutex );
if ( m_bDisposed )
throw lang::DisposedException(); // TODO
SAL_WARN_IF( nAspect == embed::Aspects::MSOLE_ICON, "embeddedobj.ole", "For iconified objects no graphical replacement is required!" );
if ( nAspect == embed::Aspects::MSOLE_ICON )
// no representation can be retrieved
throw embed::WrongStateException( "Illegal call!",
static_cast< ::cppu::OWeakObject* >(this) );
if ( m_nObjectState == -1 )
throw embed::WrongStateException( "The object is not loaded!",
static_cast< ::cppu::OWeakObject* >(this) );
awt::Size aResult;
#ifdef _WIN32
// TODO/LATER: Support different aspects
if ( m_pOleComponent && !m_bHasSizeToSet && nAspect == embed::Aspects::MSOLE_CONTENT )
{
try
{
// the cached size updated every time the object is stored
if ( m_bHasCachedSize )
{
aResult = m_aCachedSize;
}
else
{
// there is no internal cache
awt::Size aSize;
aGuard.clear();
bool bBackToLoaded = false;
bool bSuccess = false;
if ( getCurrentState() == embed::EmbedStates::LOADED )
{
SAL_WARN( "embeddedobj.ole", "Loaded object has no cached size!" );
// try to switch the object to RUNNING state and request the value again
try {
changeState( embed::EmbedStates::RUNNING );
// the links should be switched back to loaded state to avoid too
// many open MathType instances
bBackToLoaded = true;
}
catch( const uno::Exception& )
{
throw embed::NoVisualAreaSizeException(
"No size available!",
static_cast< ::cppu::OWeakObject* >(this) );
}
}
try
{
// first try to get size using replacement image
aSize = m_pOleComponent->GetExtent( nAspect ); // will throw an exception in case of failure
bSuccess = true;
}
catch( const uno::Exception& )
{
}
if (bBackToLoaded)
{
try
{
changeState(embed::EmbedStates::LOADED);
}
catch( const uno::Exception& e )
{
SAL_WARN("embeddedobj.ole", "ignoring " << e);
}
}
if ( !bSuccess )
{
try
{
// second try the cached replacement image
aSize = m_pOleComponent->GetCachedExtent( nAspect ); // will throw an exception in case of failure
bSuccess = true;
}
catch( const uno::Exception& )
{
}
}
if ( !bSuccess )
{
try
{
// third try the size reported by the object
aSize = m_pOleComponent->GetRecommendedExtent( nAspect ); // will throw an exception in case of failure
bSuccess = true;
}
catch( const uno::Exception& )
{
}
}
if ( !bSuccess )
throw embed::NoVisualAreaSizeException(
"No size available!",
static_cast< ::cppu::OWeakObject* >(this) );
aGuard.reset();
m_aCachedSize = aSize;
m_nCachedAspect = nAspect;
m_bHasCachedSize = true;
aResult = m_aCachedSize;
}
}
catch ( const embed::NoVisualAreaSizeException& )
{
throw;
}
catch ( const uno::Exception& )
{
throw embed::NoVisualAreaSizeException(
"No size available!",
static_cast< ::cppu::OWeakObject* >(this) );
}
}
else
#endif
{
// return cached value
if ( !m_bHasCachedSize )
{
throw embed::NoVisualAreaSizeException(
"No size available!",
static_cast< ::cppu::OWeakObject* >(this) );
}
SAL_WARN_IF( nAspect != m_nCachedAspect, "embeddedobj.ole", "Unexpected aspect is requested!" );
aResult = m_aCachedSize;
}
return aResult;
}
embed::VisualRepresentation SAL_CALL OleEmbeddedObject::getPreferredVisualRepresentation( sal_Int64 nAspect )
{
// begin wrapping related part ====================
uno::Reference< embed::XEmbeddedObject > xWrappedObject = m_xWrappedObject;
if ( xWrappedObject.is() )
{
// the object was converted to OOo embedded object, the current implementation is now only a wrapper
return xWrappedObject->getPreferredVisualRepresentation( nAspect );
}
// end wrapping related part ====================
::osl::MutexGuard aGuard( m_aMutex );
if ( m_bDisposed )
throw lang::DisposedException(); // TODO
SAL_WARN_IF( nAspect == embed::Aspects::MSOLE_ICON, "embeddedobj.ole", "For iconified objects no graphical replacement is required!" );
if ( nAspect == embed::Aspects::MSOLE_ICON )
// no representation can be retrieved
throw embed::WrongStateException( "Illegal call!",
static_cast< ::cppu::OWeakObject* >(this) );
// TODO: if the object has cached representation then it should be returned
// TODO: if the object has no cached representation and is in loaded state it should switch itself to the running state
if ( m_nObjectState == -1 )
throw embed::WrongStateException( "The object is not loaded!",
static_cast< ::cppu::OWeakObject* >(this) );
embed::VisualRepresentation aVisualRepr;
// TODO: in case of different aspects they must be applied to the mediatype and XTransferable must be used
// the cache is used only as a fallback if object is not in loaded state
if ( !m_xCachedVisualRepresentation.is() && ( !m_bVisReplInitialized || m_bVisReplInStream )
&& m_nObjectState == embed::EmbedStates::LOADED )
{
m_xCachedVisualRepresentation = TryToRetrieveCachedVisualRepresentation_Impl( m_xObjectStream, true );
SetVisReplInStream( m_xCachedVisualRepresentation.is() );
}
#ifdef _WIN32
if ( !m_xCachedVisualRepresentation.is() && m_pOleComponent )
{
try
{
if ( m_nObjectState == embed::EmbedStates::LOADED )
changeState( embed::EmbedStates::RUNNING );
datatransfer::DataFlavor aDataFlavor(
"application/x-openoffice-wmf;windows_formatname=\"Image WMF\"",
"Windows Metafile",
cppu::UnoType<uno::Sequence< sal_Int8 >>::get() );
aVisualRepr.Data = m_pOleComponent->getTransferData( aDataFlavor );
aVisualRepr.Flavor = aDataFlavor;
uno::Sequence< sal_Int8 > aVisReplSeq;
aVisualRepr.Data >>= aVisReplSeq;
if ( aVisReplSeq.getLength() )
{
m_xCachedVisualRepresentation = GetNewFilledTempStream_Impl(
uno::Reference< io::XInputStream > ( static_cast< io::XInputStream* > (
new ::comphelper::SequenceInputStream( aVisReplSeq ) ) ) );
}
return aVisualRepr;
}
catch( const uno::Exception& )
{}
}
#endif
// the cache is used only as a fallback if object is not in loaded state
if ( !m_xCachedVisualRepresentation.is() && ( !m_bVisReplInitialized || m_bVisReplInStream ) )
{
m_xCachedVisualRepresentation = TryToRetrieveCachedVisualRepresentation_Impl( m_xObjectStream );
SetVisReplInStream( m_xCachedVisualRepresentation.is() );
}
if ( !m_xCachedVisualRepresentation.is() )
{
// no representation can be retrieved
throw embed::WrongStateException( "Illegal call!",
static_cast< ::cppu::OWeakObject* >(this) );
}
return GetVisualRepresentationInNativeFormat_Impl( m_xCachedVisualRepresentation );
}
sal_Int32 SAL_CALL OleEmbeddedObject::getMapUnit( sal_Int64 nAspect )
{
// begin wrapping related part ====================
uno::Reference< embed::XEmbeddedObject > xWrappedObject = m_xWrappedObject;
if ( xWrappedObject.is() )
{
// the object was converted to OOo embedded object, the current implementation is now only a wrapper
return xWrappedObject->getMapUnit( nAspect );
}
// end wrapping related part ====================
::osl::MutexGuard aGuard( m_aMutex );
if ( m_bDisposed )
throw lang::DisposedException(); // TODO
SAL_WARN_IF( nAspect == embed::Aspects::MSOLE_ICON, "embeddedobj.ole", "For iconified objects no graphical replacement is required!" );
if ( nAspect == embed::Aspects::MSOLE_ICON )
// no representation can be retrieved
throw embed::WrongStateException( "Illegal call!",
static_cast< ::cppu::OWeakObject* >(this) );
if ( m_nObjectState == -1 )
throw embed::WrongStateException( "The object is not loaded!",
static_cast< ::cppu::OWeakObject* >(this) );
return embed::EmbedMapUnits::ONE_100TH_MM;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
↑ V572 It is odd that the object which was created using 'new' operator is immediately cast to another type.