INTEGRATION: CWS dba14 (1.1.2); FILE ADDED

2004/07/16 07:22:43 fs 1.1.2.1: #i31536#

1 files changed, 253 insertions, 0 deletions

diff --git a/svtools/source/misc/imageresourceaccess.cxx b/svtools/source/misc/imageresourceaccess.cxx
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+++ b/svtools/source/misc/imageresourceaccess.cxx
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+/*************************************************************************
+ *
+ *  $RCSfile: imageresourceaccess.cxx,v $
+ *
+ *  $Revision: 1.2 $
+ *
+ *  last change: $Author: rt $ $Date: 2004-07-23 10:47:39 $
+ *
+ *  The Contents of this file are made available subject to the terms of
+ *  either of the following licenses
+ *
+ *         - GNU Lesser General Public License Version 2.1
+ *         - Sun Industry Standards Source License Version 1.1
+ *
+ *  Sun Microsystems Inc., October, 2000
+ *
+ *  GNU Lesser General Public License Version 2.1
+ *  =============================================
+ *  Copyright 2000 by Sun Microsystems, Inc.
+ *  901 San Antonio Road, Palo Alto, CA 94303, USA
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License version 2.1, as published by the Free Software Foundation.
+ *
+ *  This library 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 for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ *  MA  02111-1307  USA
+ *
+ *
+ *  Sun Industry Standards Source License Version 1.1
+ *  =================================================
+ *  The contents of this file are subject to the Sun Industry Standards
+ *  Source License Version 1.1 (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.openoffice.org/license.html.
+ *
+ *  Software provided under this License is provided on an "AS IS" basis,
+ *  WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
+ *  WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
+ *  MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
+ *  See the License for the specific provisions governing your rights and
+ *  obligations concerning the Software.
+ *
+ *  The Initial Developer of the Original Code is: Sun Microsystems, Inc.
+ *
+ *  Copyright: 2000 by Sun Microsystems, Inc.
+ *
+ *  All Rights Reserved.
+ *
+ *  Contributor(s): _______________________________________
+ *
+ *
+ ************************************************************************/
+
+#ifndef SVTOOLS_SOURCE_MISC_IMAGERESOURCEACCESS_HXX
+#include "imageresourceaccess.hxx"
+#endif
+
+/** === begin UNO includes === **/
+#ifndef _COM_SUN_STAR_IO_NOTCONNECTEDEXCEPTION_HPP_
+#include <com/sun/star/io/NotConnectedException.hpp>
+#endif
+#ifndef _COM_SUN_STAR_IO_XSEEKABLE_HPP_
+#include <com/sun/star/io/XSeekable.hpp>
+#endif
+#ifndef _COM_SUN_STAR_GRAPHIC_XGRAPHICPROVIDER_HPP_
+#include <com/sun/star/graphic/XGraphicProvider.hpp>
+#endif
+#ifndef _COM_SUN_STAR_IO_XSTREAM_HPP_
+#include <com/sun/star/io/XStream.hpp>
+#endif
+/** === end UNO includes === **/
+
+#ifndef _UNTOOLS_UCBSTREAMHELPER_HXX
+#include <unotools/ucbstreamhelper.hxx>
+#endif
+#ifndef _STREAM_HXX
+#include <tools/stream.hxx>
+#endif
+#ifndef _UTL_STREAM_WRAPPER_HXX_
+#include <unotools/streamwrap.hxx>
+#endif
+#ifndef _CPPUHELPER_IMPLBASE2_HXX_
+#include <cppuhelper/implbase2.hxx>
+#endif
+
+//........................................................................
+namespace svt
+{
+//........................................................................
+
+    using namespace ::utl;
+    using namespace ::comphelper;
+    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();
+    }
+
+    //====================================================================
+    //= ImageResourceAccess
+    //====================================================================
+    //--------------------------------------------------------------------
+    bool ImageResourceAccess::isImageResourceURL( const ::rtl::OUString& _rURL )
+    {
+        ::rtl::OUString sIndicator( RTL_CONSTASCII_USTRINGPARAM( "private:resource/" ) );
+        return _rURL.indexOf( sIndicator ) == 0;
+    }
+
+    //--------------------------------------------------------------------
+    SvStream* ImageResourceAccess::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(), "ImageResourceAccess::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(), "ImageResourceAccess::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, "ImageResourceAccess::getImageStream: caught an exception!" );
+        }
+
+        return pReturn;
+    }
+
+    //--------------------------------------------------------------------
+    Reference< XInputStream > ImageResourceAccess::getImageXStream( const Reference< XMultiServiceFactory >& _rxORB, const ::rtl::OUString& _rImageResourceURL )
+    {
+        return new OSeekableInputStreamWrapper( getImageStream( _rxORB, _rImageResourceURL ), sal_True );   // take ownership
+    }
+
+//........................................................................
+} // namespace svt
+//........................................................................
+