545 lines
20 KiB
C++
545 lines
20 KiB
C++
/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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// MARKER(update_precomp.py): autogen include statement, do not remove
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#include "precompiled_canvas.hxx"
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#include <osl/mutex.hxx>
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#include <osl/process.h>
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#include <cppuhelper/implementationentry.hxx>
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#include <cppuhelper/factory.hxx>
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#include <cppuhelper/implbase3.hxx>
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#include <vcl/configsettings.hxx>
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#include <com/sun/star/uno/XComponentContext.hpp>
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#include <com/sun/star/lang/XServiceInfo.hpp>
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#include <com/sun/star/lang/XSingleComponentFactory.hpp>
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#include <com/sun/star/container/XContentEnumerationAccess.hpp>
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#include <com/sun/star/container/XNameAccess.hpp>
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#include <com/sun/star/container/XHierarchicalNameAccess.hpp>
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#include <com/sun/star/beans/PropertyValue.hpp>
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#include <boost/bind.hpp>
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#include <vector>
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#include <utility>
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#include <functional>
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#include <algorithm>
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#define OUSTR(x) ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM(x) )
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#define ARLEN(x) (sizeof (x) / sizeof *(x))
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using namespace ::com::sun::star;
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using namespace ::com::sun::star::uno;
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using ::rtl::OUString;
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namespace
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{
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OUString SAL_CALL getImplName()
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{
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return OUSTR("com.sun.star.comp.rendering.CanvasFactory");
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}
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Sequence<OUString> SAL_CALL getSuppServices()
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{
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OUString name = OUSTR("com.sun.star.rendering.CanvasFactory");
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return Sequence<OUString>(&name, 1);
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}
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//==============================================================================
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class CanvasFactory
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: public ::cppu::WeakImplHelper3< lang::XServiceInfo,
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lang::XMultiComponentFactory,
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lang::XMultiServiceFactory >
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{
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typedef std::pair<OUString,Sequence<OUString> > AvailPair;
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typedef std::pair<OUString,OUString> CachePair;
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typedef std::vector< AvailPair > AvailVector;
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typedef std::vector< CachePair > CacheVector;
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mutable ::osl::Mutex m_mutex;
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Reference<XComponentContext> m_xContext;
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Reference<container::XNameAccess> m_xCanvasConfigNameAccess;
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AvailVector m_aAvailableImplementations;
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AvailVector m_aAcceleratedImplementations;
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AvailVector m_aAAImplementations;
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mutable CacheVector m_aCachedImplementations;
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mutable bool m_bCacheHasForcedLastImpl;
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mutable bool m_bCacheHasUseAcceleratedEntry;
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mutable bool m_bCacheHasUseAAEntry;
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void checkConfigFlag( bool& r_bFlag,
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bool& r_CacheFlag,
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const OUString& nodeName ) const;
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Reference<XInterface> use(
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OUString const & serviceName,
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Sequence<Any> const & args,
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Reference<XComponentContext> const & xContext ) const;
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Reference<XInterface> lookupAndUse(
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OUString const & serviceName, Sequence<Any> const & args,
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Reference<XComponentContext> const & xContext ) const;
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public:
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virtual ~CanvasFactory();
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CanvasFactory( Reference<XComponentContext> const & xContext );
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// XServiceInfo
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virtual OUString SAL_CALL getImplementationName() throw (RuntimeException);
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virtual sal_Bool SAL_CALL supportsService( OUString const & serviceName )
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throw (RuntimeException);
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virtual Sequence<OUString> SAL_CALL getSupportedServiceNames()
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throw (RuntimeException);
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// XMultiComponentFactory
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virtual Sequence<OUString> SAL_CALL getAvailableServiceNames()
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throw (RuntimeException);
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virtual Reference<XInterface> SAL_CALL createInstanceWithContext(
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OUString const & name,
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Reference<XComponentContext> const & xContext ) throw (Exception);
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virtual Reference<XInterface> SAL_CALL
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createInstanceWithArgumentsAndContext(
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OUString const & name,
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Sequence<Any> const & args,
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Reference<XComponentContext> const & xContext ) throw (Exception);
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// XMultiServiceFactory
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virtual Reference<XInterface> SAL_CALL createInstance(
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OUString const & name )
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throw (Exception);
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virtual Reference<XInterface> SAL_CALL createInstanceWithArguments(
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OUString const & name, Sequence<Any> const & args )
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throw (Exception);
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};
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CanvasFactory::CanvasFactory( Reference<XComponentContext> const & xContext ) :
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m_mutex(),
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m_xContext(xContext),
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m_xCanvasConfigNameAccess(),
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m_aAvailableImplementations(),
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m_aAcceleratedImplementations(),
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m_aAAImplementations(),
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m_aCachedImplementations(),
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m_bCacheHasForcedLastImpl(),
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m_bCacheHasUseAcceleratedEntry(),
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m_bCacheHasUseAAEntry()
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{
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try
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{
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// read out configuration for preferred services:
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Reference<lang::XMultiServiceFactory> xConfigProvider(
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m_xContext->getServiceManager()->createInstanceWithContext(
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OUSTR("com.sun.star.configuration.ConfigurationProvider"),
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m_xContext ), UNO_QUERY_THROW );
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Any propValue(
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makeAny( beans::PropertyValue(
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OUSTR("nodepath"), -1,
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makeAny( OUSTR("/org.openoffice.Office.Canvas") ),
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beans::PropertyState_DIRECT_VALUE ) ) );
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m_xCanvasConfigNameAccess.set(
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xConfigProvider->createInstanceWithArguments(
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OUSTR("com.sun.star.configuration.ConfigurationAccess"),
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Sequence<Any>( &propValue, 1 ) ),
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UNO_QUERY_THROW );
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propValue = makeAny(
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beans::PropertyValue(
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OUSTR("nodepath"), -1,
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makeAny( OUSTR("/org.openoffice.Office.Canvas/CanvasServiceList") ),
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beans::PropertyState_DIRECT_VALUE ) );
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Reference<container::XNameAccess> xNameAccess(
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xConfigProvider->createInstanceWithArguments(
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OUSTR("com.sun.star.configuration.ConfigurationAccess"),
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Sequence<Any>( &propValue, 1 ) ), UNO_QUERY_THROW );
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Reference<container::XHierarchicalNameAccess> xHierarchicalNameAccess(
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xNameAccess, UNO_QUERY_THROW);
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Sequence<OUString> serviceNames = xNameAccess->getElementNames();
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const OUString* pCurr = serviceNames.getConstArray();
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const OUString* const pEnd = pCurr + serviceNames.getLength();
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while( pCurr != pEnd )
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{
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Reference<container::XNameAccess> xEntryNameAccess(
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xHierarchicalNameAccess->getByHierarchicalName(*pCurr),
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UNO_QUERY );
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if( xEntryNameAccess.is() )
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{
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Sequence<OUString> implementationList;
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if( (xEntryNameAccess->getByName( OUSTR("PreferredImplementations") ) >>= implementationList) )
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m_aAvailableImplementations.push_back( std::make_pair(*pCurr,implementationList) );
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if( (xEntryNameAccess->getByName( OUSTR("AcceleratedImplementations") ) >>= implementationList) )
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m_aAcceleratedImplementations.push_back( std::make_pair(*pCurr,implementationList) );
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if( (xEntryNameAccess->getByName( OUSTR("AntialiasingImplementations") ) >>= implementationList) )
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m_aAAImplementations.push_back( std::make_pair(*pCurr,implementationList) );
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}
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++pCurr;
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}
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}
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catch (RuntimeException &)
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{
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throw;
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}
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catch (Exception&)
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{
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}
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if( m_aAvailableImplementations.empty() )
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{
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// Ugh. Looks like configuration is borked. Fake minimal
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// setup.
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Sequence<OUString> aServices(1);
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aServices[0] = OUSTR("com.sun.star.comp.rendering.Canvas.VCL");
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m_aAvailableImplementations.push_back( std::make_pair(OUSTR("com.sun.star.rendering.Canvas"),
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aServices) );
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aServices[0] = OUSTR("com.sun.star.comp.rendering.SpriteCanvas.VCL");
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m_aAvailableImplementations.push_back( std::make_pair(OUSTR("com.sun.star.rendering.SpriteCanvas"),
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aServices) );
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}
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}
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CanvasFactory::~CanvasFactory()
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{
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}
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//------------------------------------------------------------------------------
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Reference<XInterface> create( Reference<XComponentContext> const & xContext )
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{
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return static_cast< ::cppu::OWeakObject * >(
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new CanvasFactory( xContext ) );
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}
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// XServiceInfo
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//______________________________________________________________________________
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OUString CanvasFactory::getImplementationName() throw (RuntimeException)
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{
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return getImplName();
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}
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//______________________________________________________________________________
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sal_Bool CanvasFactory::supportsService( OUString const & serviceName )
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throw (RuntimeException)
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{
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return serviceName.equals(getSuppServices()[0]);
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}
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//______________________________________________________________________________
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Sequence<OUString> CanvasFactory::getSupportedServiceNames()
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throw (RuntimeException)
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{
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return getSuppServices();
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}
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// XMultiComponentFactory
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//______________________________________________________________________________
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Sequence<OUString> CanvasFactory::getAvailableServiceNames()
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throw (RuntimeException)
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{
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Sequence<OUString> aServiceNames(m_aAvailableImplementations.size());
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std::transform(m_aAvailableImplementations.begin(),
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m_aAvailableImplementations.end(),
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aServiceNames.getArray(),
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std::select1st<AvailPair>());
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return aServiceNames;
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}
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//______________________________________________________________________________
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Reference<XInterface> CanvasFactory::createInstanceWithContext(
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OUString const & name, Reference<XComponentContext> const & xContext )
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throw (Exception)
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{
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return createInstanceWithArgumentsAndContext(
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name, Sequence<Any>(), xContext );
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}
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//______________________________________________________________________________
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Reference<XInterface> CanvasFactory::use(
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OUString const & serviceName,
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Sequence<Any> const & args,
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Reference<XComponentContext> const & xContext ) const
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{
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try {
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return m_xContext->getServiceManager()->createInstanceWithArgumentsAndContext(
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serviceName, args, xContext);
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}
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catch (RuntimeException &)
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{
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throw;
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}
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catch (Exception &)
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{
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return Reference<XInterface>();
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}
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}
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//______________________________________________________________________________
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void CanvasFactory::checkConfigFlag( bool& r_bFlag,
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bool& r_CacheFlag,
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const OUString& nodeName ) const
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{
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if( m_xCanvasConfigNameAccess.is() )
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{
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m_xCanvasConfigNameAccess->getByName( nodeName ) >>= r_bFlag;
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if( r_CacheFlag != r_bFlag )
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{
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// cache is invalid, because of different order of
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// elements
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r_CacheFlag = r_bFlag;
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m_aCachedImplementations.clear();
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}
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}
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}
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//______________________________________________________________________________
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Reference<XInterface> CanvasFactory::lookupAndUse(
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OUString const & serviceName, Sequence<Any> const & args,
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Reference<XComponentContext> const & xContext ) const
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{
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::osl::MutexGuard guard(m_mutex);
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// forcing last entry from impl list, if config flag set
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bool bForceLastEntry(false);
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checkConfigFlag( bForceLastEntry,
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m_bCacheHasForcedLastImpl,
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OUSTR("ForceSafeServiceImpl") );
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// use anti-aliasing canvas, if config flag set (or not existing)
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bool bUseAAEntry(true);
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checkConfigFlag( bUseAAEntry,
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m_bCacheHasUseAAEntry,
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OUSTR("UseAntialiasingCanvas") );
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// use accelerated canvas, if config flag set (or not existing)
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bool bUseAcceleratedEntry(true);
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checkConfigFlag( bUseAcceleratedEntry,
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m_bCacheHasUseAcceleratedEntry,
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OUSTR("UseAcceleratedCanvas") );
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// try to reuse last working implementation for given service name
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const CacheVector::iterator aEnd(m_aCachedImplementations.end());
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CacheVector::iterator aMatch;
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if( (aMatch=std::find_if(m_aCachedImplementations.begin(),
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aEnd,
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boost::bind(&OUString::equals,
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boost::cref(serviceName),
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boost::bind(
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std::select1st<CachePair>(),
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_1)))) != aEnd )
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{
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Reference<XInterface> xCanvas( use( aMatch->second, args, xContext ) );
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if(xCanvas.is())
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return xCanvas;
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}
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// lookup in available service list
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const AvailVector::const_iterator aAvailEnd(m_aAvailableImplementations.end());
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AvailVector::const_iterator aAvailImplsMatch;
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if( (aAvailImplsMatch=std::find_if(m_aAvailableImplementations.begin(),
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aAvailEnd,
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boost::bind(&OUString::equals,
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boost::cref(serviceName),
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boost::bind(
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std::select1st<AvailPair>(),
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_1)))) == aAvailEnd )
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{
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return Reference<XInterface>();
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}
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const AvailVector::const_iterator aAAEnd(m_aAAImplementations.end());
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AvailVector::const_iterator aAAImplsMatch;
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if( (aAAImplsMatch=std::find_if(m_aAAImplementations.begin(),
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aAAEnd,
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boost::bind(&OUString::equals,
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boost::cref(serviceName),
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boost::bind(
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std::select1st<AvailPair>(),
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_1)))) == aAAEnd )
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{
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return Reference<XInterface>();
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}
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const AvailVector::const_iterator aAccelEnd(m_aAcceleratedImplementations.end());
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AvailVector::const_iterator aAccelImplsMatch;
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if( (aAccelImplsMatch=std::find_if(m_aAcceleratedImplementations.begin(),
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aAccelEnd,
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boost::bind(&OUString::equals,
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boost::cref(serviceName),
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boost::bind(
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std::select1st<AvailPair>(),
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_1)))) == aAccelEnd )
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{
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return Reference<XInterface>();
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}
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const Sequence<OUString> aPreferredImpls( aAvailImplsMatch->second );
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const OUString* pCurrImpl = aPreferredImpls.getConstArray();
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const OUString* const pEndImpl = pCurrImpl + aPreferredImpls.getLength();
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const Sequence<OUString> aAAImpls( aAAImplsMatch->second );
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const OUString* const pFirstAAImpl = aAAImpls.getConstArray();
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const OUString* const pEndAAImpl = pFirstAAImpl + aAAImpls.getLength();
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const Sequence<OUString> aAccelImpls( aAccelImplsMatch->second );
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const OUString* const pFirstAccelImpl = aAccelImpls.getConstArray();
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const OUString* const pEndAccelImpl = pFirstAccelImpl + aAccelImpls.getLength();
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// force last entry from impl list, if config flag set
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if( bForceLastEntry )
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pCurrImpl = pEndImpl-1;
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while( pCurrImpl != pEndImpl )
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{
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const OUString aCurrName(pCurrImpl->trim());
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// check whether given canvas service is listed in the
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// sequence of "accelerated canvas implementations"
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const bool bIsAcceleratedImpl(
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std::find_if(pFirstAccelImpl,
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pEndAccelImpl,
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boost::bind(&OUString::equals,
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boost::cref(aCurrName),
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boost::bind(
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&OUString::trim,
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_1))) != pEndAccelImpl );
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// check whether given canvas service is listed in the
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// sequence of "antialiasing canvas implementations"
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const bool bIsAAImpl(
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std::find_if(pFirstAAImpl,
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pEndAAImpl,
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boost::bind(&OUString::equals,
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boost::cref(aCurrName),
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boost::bind(
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&OUString::trim,
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_1))) != pEndAAImpl );
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// try to instantiate canvas *only* if either accel and AA
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// property match preference, *or*, if there's a mismatch, only
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// go for a less capable canvas (that effectively let those
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// pour canvas impls still work as fallbacks, should an
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// accelerated/AA one fail). Property implies configuration:
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// http://en.wikipedia.org/wiki/Truth_table#Logical_implication
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if( (!bIsAAImpl || bUseAAEntry) && (!bIsAcceleratedImpl || bUseAcceleratedEntry) )
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{
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Reference<XInterface> xCanvas(
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use( pCurrImpl->trim(), args, xContext ) );
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if(xCanvas.is())
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{
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if( aMatch != aEnd )
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{
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// cache entry exists, replace dysfunctional
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// implementation name
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aMatch->second = pCurrImpl->trim();
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}
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else
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{
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// new service name, add new cache entry
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m_aCachedImplementations.push_back(std::make_pair(serviceName,
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pCurrImpl->trim()));
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}
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return xCanvas;
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}
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}
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++pCurrImpl;
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}
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return Reference<XInterface>();
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}
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//______________________________________________________________________________
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Reference<XInterface> CanvasFactory::createInstanceWithArgumentsAndContext(
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OUString const & preferredOne, Sequence<Any> const & args,
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Reference<XComponentContext> const & xContext ) throw (Exception)
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{
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Reference<XInterface> xCanvas(
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lookupAndUse( preferredOne, args, xContext ) );
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if(xCanvas.is())
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return xCanvas;
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// last resort: try service name directly
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return use( preferredOne, args, xContext );
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}
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// XMultiServiceFactory
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//______________________________________________________________________________
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Reference<XInterface> CanvasFactory::createInstance( OUString const & name )
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throw (Exception)
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{
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return createInstanceWithArgumentsAndContext(
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name, Sequence<Any>(), m_xContext );
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}
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//______________________________________________________________________________
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Reference<XInterface> CanvasFactory::createInstanceWithArguments(
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OUString const & name, Sequence<Any> const & args ) throw (Exception)
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{
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return createInstanceWithArgumentsAndContext(
|
|
name, args, m_xContext );
|
|
}
|
|
|
|
const ::cppu::ImplementationEntry s_entries [] = {
|
|
{
|
|
create,
|
|
getImplName,
|
|
getSuppServices,
|
|
::cppu::createSingleComponentFactory,
|
|
0, 0
|
|
},
|
|
{ 0, 0, 0, 0, 0, 0 }
|
|
};
|
|
|
|
} // anon namespace
|
|
|
|
extern "C" {
|
|
|
|
void SAL_CALL component_getImplementationEnvironment(
|
|
const sal_Char ** ppEnvTypeName, uno_Environment ** /*ppEnv*/ )
|
|
{
|
|
*ppEnvTypeName = CPPU_CURRENT_LANGUAGE_BINDING_NAME;
|
|
}
|
|
|
|
void * SAL_CALL component_getFactory(
|
|
sal_Char const * pImplName,
|
|
lang::XMultiServiceFactory * pServiceManager,
|
|
registry::XRegistryKey * pRegistryKey )
|
|
{
|
|
return ::cppu::component_getFactoryHelper(
|
|
pImplName, pServiceManager, pRegistryKey, s_entries );
|
|
}
|
|
|
|
}
|
|
|