LCOV - code coverage report
Current view: top level - svtools/source/misc - imageresourceaccess.cxx (source / functions) Hit Total Coverage
Test: commit e02a6cb2c3e2b23b203b422e4e0680877f232636 Lines: 0 57 0.0 %
Date: 2014-04-14 Functions: 0 11 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : 
      21             : #include <svtools/imageresourceaccess.hxx>
      22             : 
      23             : #include <com/sun/star/io/NotConnectedException.hpp>
      24             : #include <com/sun/star/io/XSeekable.hpp>
      25             : #include <com/sun/star/graphic/GraphicProvider.hpp>
      26             : #include <com/sun/star/graphic/XGraphicProvider.hpp>
      27             : #include <com/sun/star/io/XStream.hpp>
      28             : #include <unotools/ucbstreamhelper.hxx>
      29             : #include <tools/stream.hxx>
      30             : #include <unotools/streamwrap.hxx>
      31             : #include <cppuhelper/implbase2.hxx>
      32             : #include <comphelper/processfactory.hxx>
      33             : 
      34             : 
      35             : namespace svt
      36             : {
      37             : 
      38             : 
      39             :     using namespace ::utl;
      40             :     using namespace ::com::sun::star::io;
      41             :     using namespace ::com::sun::star::uno;
      42             :     using namespace ::com::sun::star::lang;
      43             :     using namespace ::com::sun::star::beans;
      44             :     using namespace ::com::sun::star::graphic;
      45             : 
      46             : 
      47             :     //= StreamSupplier
      48             : 
      49             :     typedef ::cppu::WeakImplHelper2 <   XStream
      50             :                                     ,   XSeekable
      51             :                                     >   StreamSupplier_Base;
      52           0 :     class StreamSupplier : public StreamSupplier_Base
      53             :     {
      54             :     private:
      55             :         Reference< XInputStream >   m_xInput;
      56             :         Reference< XOutputStream >  m_xOutput;
      57             :         Reference< XSeekable >      m_xSeekable;
      58             : 
      59             :     public:
      60             :         StreamSupplier( const Reference< XInputStream >& _rxInput, const Reference< XOutputStream >& _rxOutput );
      61             : 
      62             :     protected:
      63             :         // XStream
      64             :         virtual Reference< XInputStream > SAL_CALL getInputStream(  ) throw (RuntimeException, std::exception) SAL_OVERRIDE;
      65             :         virtual Reference< XOutputStream > SAL_CALL getOutputStream(  ) throw (RuntimeException, std::exception) SAL_OVERRIDE;
      66             : 
      67             :         // XSeekable
      68             :         virtual void SAL_CALL seek( ::sal_Int64 location ) throw (::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
      69             :         virtual ::sal_Int64 SAL_CALL getPosition(  ) throw (::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
      70             :         virtual ::sal_Int64 SAL_CALL getLength(  ) throw (::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
      71             :     };
      72             : 
      73             : 
      74           0 :     StreamSupplier::StreamSupplier( const Reference< XInputStream >& _rxInput, const Reference< XOutputStream >& _rxOutput )
      75             :         :m_xInput( _rxInput )
      76           0 :         ,m_xOutput( _rxOutput )
      77             :     {
      78           0 :         m_xSeekable = m_xSeekable.query( m_xInput );
      79           0 :         if ( !m_xSeekable.is() )
      80           0 :             m_xSeekable = m_xSeekable.query( m_xOutput );
      81             :         OSL_ENSURE( m_xSeekable.is(), "StreamSupplier::StreamSupplier: at least one of both must be seekable!" );
      82           0 :     }
      83             : 
      84             : 
      85           0 :     Reference< XInputStream > SAL_CALL StreamSupplier::getInputStream(  ) throw (RuntimeException, std::exception)
      86             :     {
      87           0 :         return m_xInput;
      88             :     }
      89             : 
      90             : 
      91           0 :     Reference< XOutputStream > SAL_CALL StreamSupplier::getOutputStream(  ) throw (RuntimeException, std::exception)
      92             :     {
      93           0 :         return m_xOutput;
      94             :     }
      95             : 
      96             : 
      97           0 :     void SAL_CALL StreamSupplier::seek( ::sal_Int64 location ) throw (IllegalArgumentException, IOException, RuntimeException, std::exception)
      98             :     {
      99           0 :         if ( !m_xSeekable.is() )
     100           0 :             throw NotConnectedException();
     101             : 
     102           0 :         m_xSeekable->seek( location );
     103           0 :     }
     104             : 
     105             : 
     106           0 :     ::sal_Int64 SAL_CALL StreamSupplier::getPosition(  ) throw (IOException, RuntimeException, std::exception)
     107             :     {
     108           0 :         if ( !m_xSeekable.is() )
     109           0 :             throw NotConnectedException();
     110             : 
     111           0 :         return m_xSeekable->getPosition();
     112             :     }
     113             : 
     114             : 
     115           0 :     ::sal_Int64 SAL_CALL StreamSupplier::getLength(  ) throw (IOException, RuntimeException, std::exception)
     116             :     {
     117           0 :         if ( !m_xSeekable.is() )
     118           0 :             throw NotConnectedException();
     119             : 
     120           0 :         return m_xSeekable->getLength();
     121             :     }
     122             : 
     123             : 
     124             :     //= GraphicAccess
     125             : 
     126             : 
     127           0 :     bool GraphicAccess::isSupportedURL( const OUString& _rURL )
     128             :     {
     129           0 :         if  (  _rURL.startsWith( "private:resource/" )
     130           0 :             || _rURL.startsWith( "private:graphicrepository/" )
     131           0 :             || _rURL.startsWith( "private:standardimage/" )
     132           0 :             || _rURL.startsWith( "vnd.sun.star.GraphicObject:" )
     133           0 :             || _rURL.startsWith( "vnd.sun.star.extension://" )
     134             :             )
     135           0 :             return true;
     136           0 :         return false;
     137             :     }
     138             : 
     139             : 
     140           0 :     SvStream* GraphicAccess::getImageStream( const Reference< XComponentContext >& _rxContext, const OUString& _rImageResourceURL )
     141             :     {
     142           0 :         SvStream* pReturn = NULL;
     143             : 
     144             :         try
     145             :         {
     146             :             // get a GraphicProvider
     147           0 :             Reference< XGraphicProvider > xProvider = ::com::sun::star::graphic::GraphicProvider::create(_rxContext);
     148             : 
     149             :             // let it create a graphic from the given URL
     150           0 :             Sequence< PropertyValue > aMediaProperties( 1 );
     151           0 :             aMediaProperties[0].Name = "URL";
     152           0 :             aMediaProperties[0].Value <<= _rImageResourceURL;
     153           0 :             Reference< XGraphic > xGraphic( xProvider->queryGraphic( aMediaProperties ) );
     154             :             OSL_ENSURE( xGraphic.is(), "GraphicAccess::getImageStream: the provider did not give us a graphic object!" );
     155           0 :             if ( !xGraphic.is() )
     156           0 :                 return pReturn;
     157             : 
     158             :             // copy the graphic to a in-memory buffer
     159           0 :             SvMemoryStream* pMemBuffer = new SvMemoryStream;
     160             :             Reference< XStream > xBufferAccess = new StreamSupplier(
     161           0 :                 new OSeekableInputStreamWrapper( *pMemBuffer ),
     162           0 :                 new OSeekableOutputStreamWrapper( *pMemBuffer )
     163           0 :             );
     164             : 
     165           0 :             aMediaProperties.realloc( 2 );
     166           0 :             aMediaProperties[0].Name = "OutputStream";
     167           0 :             aMediaProperties[0].Value <<= xBufferAccess;
     168           0 :             aMediaProperties[1].Name = "MimeType";
     169           0 :             aMediaProperties[1].Value <<= OUString( "image/png" );
     170           0 :             xProvider->storeGraphic( xGraphic, aMediaProperties );
     171             : 
     172           0 :             pMemBuffer->Seek( 0 );
     173           0 :             pReturn = pMemBuffer;
     174             :         }
     175           0 :         catch( const Exception& )
     176             :         {
     177             :             OSL_FAIL( "GraphicAccess::getImageStream: caught an exception!" );
     178             :         }
     179             : 
     180           0 :         return pReturn;
     181             :     }
     182             : 
     183             : 
     184           0 :     Reference< XInputStream > GraphicAccess::getImageXStream( const Reference< XComponentContext >& _rxContext, const OUString& _rImageResourceURL )
     185             :     {
     186           0 :         return new OSeekableInputStreamWrapper( getImageStream( _rxContext, _rImageResourceURL ), true );   // take ownership
     187             :     }
     188             : 
     189             : 
     190             : } // namespace svt
     191             : 
     192             : 
     193             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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