sd/source/filter/eppt/pptexsoundcollection.cxx

   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 #include <memory>
  21 #include "pptexsoundcollection.hxx"
  22 #include "epptdef.hxx"
  23 #include <tools/stream.hxx>
  24 #include <tools/urlobj.hxx>
  25 #include <ucbhelper/content.hxx>
  26 #include <comphelper/processfactory.hxx>
  27 #include <unotools/ucbstreamhelper.hxx>
  28
  29 namespace ppt
  30 {
  31
  32 ExSoundEntry::ExSoundEntry(const OUString& rString)
  33     : nFileSize(0)
  34     , aSoundURL(rString)
  35 {
  36     try
  37     {
  38         ::ucbhelper::Content aCnt( aSoundURL,
  39             css::uno::Reference< css::ucb::XCommandEnvironment >(),
  40             comphelper::getProcessComponentContext() );
  41         sal_Int64 nVal = 0;
  42         aCnt.getPropertyValue("Size") >>= nVal;
  43         nFileSize = static_cast<sal_uInt32>(nVal);
  44     }
  45     catch( css::uno::Exception& )
  46     {
  47
  48     }
  49 };
  50
  51 OUString ExSoundEntry::ImplGetName() const
  52 {
  53     INetURLObject aTmp( aSoundURL );
  54     return aTmp.GetName();
  55 }
  56
  57 OUString ExSoundEntry::ImplGetExtension() const
  58 {
  59     INetURLObject aTmp( aSoundURL );
  60     OUString aExtension( aTmp.GetExtension() );
  61     if ( !aExtension.isEmpty() )
  62     {
  63         aExtension = "." + aExtension;
  64     }
  65     return aExtension;
  66 }
  67
  68 bool ExSoundEntry::IsSameURL(const OUString& rURL) const
  69 {
  70     return ( rURL == aSoundURL );
  71 }
  72
  73 sal_uInt32 ExSoundEntry::GetSize( sal_uInt32 nId ) const
  74 {
  75     OUString aName( ImplGetName() );
  76     OUString aExtension( ImplGetExtension() );
  77
  78     sal_uInt32 nSize = 8;                           // SoundContainer Header
  79     if ( !aName.isEmpty() )                         // String Atom          ( instance 0 - name of sound )
  80         nSize += aName.getLength() * 2 + 8;
  81     if ( !aExtension.isEmpty() )                    // String Atom          ( instance 1 - extension of sound )
  82         nSize += aExtension.getLength() * 2 + 8;
  83
  84     OUString aId( OUString::number(nId) );   // String Atom          ( instance 2 - reference id )
  85     nSize += 2 * aId.getLength() + 8;
  86
  87     nSize += nFileSize + 8;                         // SoundData Atom
  88
  89     return nSize;
  90 }
  91
  92 void ExSoundEntry::Write( SvStream& rSt, sal_uInt32 nId ) const
  93 {
  94     try
  95     {
  96         ::ucbhelper::Content aCnt( aSoundURL,
  97             css::uno::Reference< css::ucb::XCommandEnvironment >(),
  98             comphelper::getProcessComponentContext() );
  99
 100         // create SoundContainer
 101         rSt.WriteUInt32( ( EPP_Sound << 16 ) | 0xf ).WriteUInt32( GetSize( nId ) - 8 );
 102
 103         OUString aSoundName( ImplGetName() );
 104         sal_Int32 i, nSoundNameLen = aSoundName.getLength();
 105         if ( nSoundNameLen )
 106         {
 107             // name of sound ( instance 0 )
 108             rSt.WriteUInt32( EPP_CString << 16 ).WriteUInt32( nSoundNameLen * 2 );
 109             for ( i = 0; i < nSoundNameLen; ++i )
 110                 rSt.WriteUInt16( aSoundName[i] );
 111         }
 112         OUString aExtension( ImplGetExtension() );
 113         sal_Int32 nExtensionLen = aExtension.getLength();
 114         if ( nExtensionLen )
 115         {
 116             // extension of sound ( instance 1 )
 117             rSt.WriteUInt32( ( EPP_CString << 16 ) | 16 ).WriteUInt32( nExtensionLen * 2 );
 118             for ( i = 0; i < nExtensionLen; ++i )
 119                 rSt.WriteUInt16( aExtension[i] );
 120         }
 121         // id of sound ( instance 2 )
 122         OUString aId( OUString::number(nId ) );
 123         sal_Int32 nIdLen = aId.getLength();
 124         rSt.WriteUInt32( ( EPP_CString << 16 ) | 32 ).WriteUInt32( nIdLen * 2 );
 125         for ( i = 0; i < nIdLen; ++i )
 126             rSt.WriteUInt16( aId[i] );
 127
 128         rSt.WriteUInt32( EPP_SoundData << 16 ).WriteUInt32( nFileSize );
 129         sal_uInt32 nBytesLeft = nFileSize;
 130         std::unique_ptr<SvStream> pSourceFile = ::utl::UcbStreamHelper::CreateStream( aSoundURL, StreamMode::READ );
 131         if ( pSourceFile )
 132         {
 133             std::unique_ptr<sal_uInt8[]> pBuf( new sal_uInt8[ 0x10000 ] );   // 64 kB  Buffer
 134             while ( nBytesLeft )
 135             {
 136                 sal_uInt32 nToDo = std::min<sal_uInt32>( nBytesLeft, 0x10000 );
 137                 pSourceFile->ReadBytes(pBuf.get(), nToDo);
 138                 rSt.WriteBytes(pBuf.get(), nToDo);
 139                 nBytesLeft -= nToDo;
 140             }
 141         }
 142     }
 143     catch( css::uno::Exception& )
 144     {
 145
 146     }
 147 }
 148
 149 sal_uInt32 ExSoundCollection::GetId(const OUString& rString)
 150 {
 151     sal_uInt32 nSoundId = 0;
 152     if (!rString.isEmpty())
 153     {
 154         const sal_uInt32 nSoundCount = maEntries.size();
 155
 156         auto iter = std::find_if(maEntries.begin(), maEntries.end(),
 157             [&rString](const ExSoundEntry& rEntry) { return rEntry.IsSameURL(rString); });
 158         nSoundId = static_cast<sal_uInt32>(std::distance(maEntries.begin(), iter));
 159
 160         if ( nSoundId++ == nSoundCount )
 161         {
 162             ExSoundEntry aEntry( rString );
 163             if ( aEntry.GetFileSize() )
 164                 maEntries.push_back(aEntry);
 165             else
 166             {
 167                 nSoundId = 0;   // only insert sounds that are accessible
 168             }
 169         }
 170     }
 171     return nSoundId;
 172 }
 173
 174 sal_uInt32 ExSoundCollection::GetSize() const
 175 {
 176     sal_uInt32 nSize = 0;
 177     if (!maEntries.empty())
 178     {
 179         nSize += 8 + 12;    // size of SoundCollectionContainerHeader + SoundCollAtom
 180         sal_uInt32 i = 1;
 181         for ( const auto& rEntry : maEntries )
 182         {
 183             nSize += rEntry.GetSize(i);
 184             ++i;
 185         }
 186     }
 187     return nSize;
 188 }
 189
 190 void ExSoundCollection::Write( SvStream& rSt ) const
 191 {
 192     if (maEntries.empty())
 193         return;
 194
 195     sal_uInt32 i = 1;
 196     sal_uInt32 nSoundCount = maEntries.size();
 197
 198     // create SoundCollection Container
 199     rSt.WriteUInt16( 0xf ).WriteUInt16( EPP_SoundCollection ).WriteUInt32( GetSize() - 8 );
 200
 201     // create SoundCollAtom ( reference to the next free SoundId );
 202     rSt.WriteUInt32( EPP_SoundCollAtom << 16 ).WriteUInt32( 4 ).WriteUInt32( nSoundCount );
 203
 204     for ( const auto& rEntry : maEntries )
 205     {
 206         rEntry.Write(rSt,i);
 207         ++i;
 208     }
 209 }
 210
 211 } // namespace ppt;
 212
 213 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */