| /************************************************************** |
| * |
| * 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_svtools.hxx" |
| |
| #include <svtools/imageresourceaccess.hxx> |
| |
| /** === begin UNO includes === **/ |
| #include <com/sun/star/io/NotConnectedException.hpp> |
| #include <com/sun/star/io/XSeekable.hpp> |
| #include <com/sun/star/graphic/XGraphicProvider.hpp> |
| #include <com/sun/star/io/XStream.hpp> |
| /** === end UNO includes === **/ |
| #include <unotools/ucbstreamhelper.hxx> |
| #include <tools/stream.hxx> |
| #include <unotools/streamwrap.hxx> |
| #include <cppuhelper/implbase2.hxx> |
| |
| //........................................................................ |
| namespace svt |
| { |
| //........................................................................ |
| |
| using namespace ::utl; |
| using namespace ::com::sun::star::io; |
| using namespace ::com::sun::star::uno; |
| using namespace ::com::sun::star::lang; |
| using namespace ::com::sun::star::beans; |
| using namespace ::com::sun::star::graphic; |
| |
| //==================================================================== |
| //= StreamSupplier |
| //==================================================================== |
| typedef ::cppu::WeakImplHelper2 < XStream |
| , XSeekable |
| > StreamSupplier_Base; |
| class StreamSupplier : public StreamSupplier_Base |
| { |
| private: |
| Reference< XInputStream > m_xInput; |
| Reference< XOutputStream > m_xOutput; |
| Reference< XSeekable > m_xSeekable; |
| |
| public: |
| StreamSupplier( const Reference< XInputStream >& _rxInput, const Reference< XOutputStream >& _rxOutput ); |
| |
| protected: |
| // XStream |
| virtual Reference< XInputStream > SAL_CALL getInputStream( ) throw (RuntimeException); |
| virtual Reference< XOutputStream > SAL_CALL getOutputStream( ) throw (RuntimeException); |
| |
| // XSeekable |
| virtual void SAL_CALL seek( ::sal_Int64 location ) throw (::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); |
| virtual ::sal_Int64 SAL_CALL getPosition( ) throw (::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); |
| virtual ::sal_Int64 SAL_CALL getLength( ) throw (::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException); |
| }; |
| |
| //-------------------------------------------------------------------- |
| StreamSupplier::StreamSupplier( const Reference< XInputStream >& _rxInput, const Reference< XOutputStream >& _rxOutput ) |
| :m_xInput( _rxInput ) |
| ,m_xOutput( _rxOutput ) |
| { |
| m_xSeekable = m_xSeekable.query( m_xInput ); |
| if ( !m_xSeekable.is() ) |
| m_xSeekable = m_xSeekable.query( m_xOutput ); |
| OSL_ENSURE( m_xSeekable.is(), "StreamSupplier::StreamSupplier: at least one of both must be seekable!" ); |
| } |
| |
| //-------------------------------------------------------------------- |
| Reference< XInputStream > SAL_CALL StreamSupplier::getInputStream( ) throw (RuntimeException) |
| { |
| return m_xInput; |
| } |
| |
| //-------------------------------------------------------------------- |
| Reference< XOutputStream > SAL_CALL StreamSupplier::getOutputStream( ) throw (RuntimeException) |
| { |
| return m_xOutput; |
| } |
| |
| //-------------------------------------------------------------------- |
| void SAL_CALL StreamSupplier::seek( ::sal_Int64 location ) throw (IllegalArgumentException, IOException, RuntimeException) |
| { |
| if ( !m_xSeekable.is() ) |
| throw NotConnectedException(); |
| |
| m_xSeekable->seek( location ); |
| } |
| |
| //-------------------------------------------------------------------- |
| ::sal_Int64 SAL_CALL StreamSupplier::getPosition( ) throw (IOException, RuntimeException) |
| { |
| if ( !m_xSeekable.is() ) |
| throw NotConnectedException(); |
| |
| return m_xSeekable->getPosition(); |
| } |
| |
| //-------------------------------------------------------------------- |
| ::sal_Int64 SAL_CALL StreamSupplier::getLength( ) throw (IOException, RuntimeException) |
| { |
| if ( !m_xSeekable.is() ) |
| throw NotConnectedException(); |
| |
| return m_xSeekable->getLength(); |
| } |
| |
| //==================================================================== |
| //= GraphicAccess |
| //==================================================================== |
| //-------------------------------------------------------------------- |
| bool GraphicAccess::isSupportedURL( const ::rtl::OUString& _rURL ) |
| { |
| if ( ( _rURL.indexOfAsciiL( RTL_CONSTASCII_STRINGPARAM( "private:resource/" ) ) == 0 ) |
| || ( _rURL.indexOfAsciiL( RTL_CONSTASCII_STRINGPARAM( "private:graphicrepository/" ) ) == 0 ) |
| || ( _rURL.indexOfAsciiL( RTL_CONSTASCII_STRINGPARAM( "private:standardimage/" ) ) == 0 ) |
| || ( _rURL.indexOfAsciiL( RTL_CONSTASCII_STRINGPARAM( "vnd.sun.star.GraphicObject:" ) ) == 0 ) |
| || ( _rURL.indexOfAsciiL( RTL_CONSTASCII_STRINGPARAM( "vnd.sun.star.extension://" ) ) == 0 ) |
| ) |
| return true; |
| return false; |
| } |
| |
| //-------------------------------------------------------------------- |
| SvStream* GraphicAccess::getImageStream( const Reference< XMultiServiceFactory >& _rxORB, const ::rtl::OUString& _rImageResourceURL ) |
| { |
| SvStream* pReturn = NULL; |
| |
| try |
| { |
| // get a GraphicProvider |
| Reference< XGraphicProvider > xProvider; |
| if ( _rxORB.is() ) |
| xProvider = xProvider.query( _rxORB->createInstance( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "com.sun.star.graphic.GraphicProvider" ) ) ) ); |
| OSL_ENSURE( xProvider.is(), "GraphicAccess::getImageStream: could not create a graphic provider!" ); |
| |
| if ( !xProvider.is() ) |
| return pReturn; |
| |
| // let it create a graphic from the given URL |
| Sequence< PropertyValue > aMediaProperties( 1 ); |
| aMediaProperties[0].Name = ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "URL" ) ); |
| aMediaProperties[0].Value <<= _rImageResourceURL; |
| Reference< XGraphic > xGraphic( xProvider->queryGraphic( aMediaProperties ) ); |
| OSL_ENSURE( xGraphic.is(), "GraphicAccess::getImageStream: the provider did not give us a graphic object!" ); |
| if ( !xGraphic.is() ) |
| return pReturn; |
| |
| // copy the graphic to a in-memory buffer |
| SvMemoryStream* pMemBuffer = new SvMemoryStream; |
| Reference< XStream > xBufferAccess = new StreamSupplier( |
| new OSeekableInputStreamWrapper( *pMemBuffer ), |
| new OSeekableOutputStreamWrapper( *pMemBuffer ) |
| ); |
| |
| aMediaProperties.realloc( 2 ); |
| aMediaProperties[0].Name = ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "OutputStream" ) ); |
| aMediaProperties[0].Value <<= xBufferAccess; |
| aMediaProperties[1].Name = ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "MimeType" ) ); |
| aMediaProperties[1].Value <<= ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "image/png" ) ); |
| xProvider->storeGraphic( xGraphic, aMediaProperties ); |
| |
| pMemBuffer->Seek( 0 ); |
| pReturn = pMemBuffer; |
| } |
| catch( const Exception& ) |
| { |
| OSL_ENSURE( sal_False, "GraphicAccess::getImageStream: caught an exception!" ); |
| } |
| |
| return pReturn; |
| } |
| |
| //-------------------------------------------------------------------- |
| Reference< XInputStream > GraphicAccess::getImageXStream( const Reference< XMultiServiceFactory >& _rxORB, const ::rtl::OUString& _rImageResourceURL ) |
| { |
| return new OSeekableInputStreamWrapper( getImageStream( _rxORB, _rImageResourceURL ), sal_True ); // take ownership |
| } |
| |
| //........................................................................ |
| } // namespace svt |
| //........................................................................ |
| |
