writerperfect/source/draw/WPGImportFilter.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /* WPGImportFilter: Sets up the filter, and calls OdgExporter
   3  * to do the actual filtering
   4  *
   5  * This file is part of the LibreOffice project.
   6  *
   7  * This Source Code Form is subject to the terms of the Mozilla Public
   8  * License, v. 2.0. If a copy of the MPL was not distributed with this
   9  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
  10  */
  11
  12 /* "This product is not manufactured, approved, or supported by
  13  * Corel Corporation or Corel Corporation Limited."
  14  */
  15
  16 #include <osl/diagnose.h>
  17 #include <rtl/tencinfo.h>
  18
  19 #include <com/sun/star/io/XInputStream.hpp>
  20 #include <com/sun/star/xml/sax/XAttributeList.hpp>
  21 #include <com/sun/star/xml/sax/XDocumentHandler.hpp>
  22 #include <com/sun/star/xml/sax/InputSource.hpp>
  23 #include <com/sun/star/xml/sax/XParser.hpp>
  24 #include <com/sun/star/io/XSeekable.hpp>
  25 #include <com/sun/star/uno/Reference.h>
  26
  27 #include <comphelper/componentcontext.hxx>
  28 #include <xmloff/attrlist.hxx>
  29
  30 #include <libodfgen/libodfgen.hxx>
  31
  32 #include "common/DocumentHandler.hxx"
  33 #include "common/WPXSvStream.hxx"
  34 #include "WPGImportFilter.hxx"
  35
  36 #include <iostream>
  37
  38 using namespace ::com::sun::star::uno;
  39 using com::sun::star::uno::Reference;
  40 using com::sun::star::io::XInputStream;
  41 using com::sun::star::io::XSeekable;
  42 using com::sun::star::uno::Sequence;
  43 using namespace ::rtl;
  44 using com::sun::star::uno::Any;
  45 using com::sun::star::uno::UNO_QUERY;
  46 using com::sun::star::uno::XInterface;
  47 using com::sun::star::uno::Exception;
  48 using com::sun::star::uno::RuntimeException;
  49 using com::sun::star::beans::PropertyValue;
  50 using com::sun::star::document::XFilter;
  51 using com::sun::star::document::XExtendedFilterDetection;
  52 using com::sun::star::document::XImporter;
  53 using com::sun::star::xml::sax::InputSource;
  54 using com::sun::star::xml::sax::XAttributeList;
  55 using com::sun::star::xml::sax::XDocumentHandler;
  56 using com::sun::star::xml::sax::XParser;
  57
  58
  59 sal_Bool SAL_CALL WPGImportFilter::filter( const Sequence< ::com::sun::star::beans::PropertyValue >& aDescriptor )
  60 throw (RuntimeException)
  61 {
  62 #ifdef DEBUG
  63     std::cerr << "WPGImportFilter::filter" << std::endl;
  64 #endif
  65     sal_Int32 nLength = aDescriptor.getLength();
  66     const PropertyValue *pValue = aDescriptor.getConstArray();
  67     Reference < XInputStream > xInputStream;
  68     for ( sal_Int32 i = 0 ; i < nLength; i++)
  69     {
  70         if ( pValue[i].Name == "InputStream" )
  71             pValue[i].Value >>= xInputStream;
  72     }
  73     if ( !xInputStream.is() )
  74     {
  75         OSL_ASSERT( 0 );
  76         return sal_False;
  77     }
  78
  79     // An XML import service: what we push sax messages to..
  80     OUString sXMLImportService (  "com.sun.star.comp.Draw.XMLOasisImporter"  );
  81     Reference < XDocumentHandler > xInternalHandler( comphelper::ComponentContext( mxContext ).createComponent( sXMLImportService ), UNO_QUERY );
  82
  83     // The XImporter sets up an empty target document for XDocumentHandler to write to..
  84     Reference < XImporter > xImporter(xInternalHandler, UNO_QUERY);
  85     xImporter->setTargetDocument( mxDoc );
  86
  87     // OO Graphics Handler: abstract class to handle document SAX messages, concrete implementation here
  88     // writes to in-memory target doc
  89     DocumentHandler xHandler(xInternalHandler);
  90
  91     WPXSvInputStream input( xInputStream );
  92
  93     OdgGenerator exporter(&xHandler, ODF_FLAT_XML);
  94     bool tmpParseResult = libwpg::WPGraphics::parse(&input, &exporter);
  95     return tmpParseResult;
  96 }
  97
  98 void SAL_CALL WPGImportFilter::cancel(  )
  99 throw (RuntimeException)
 100 {
 101 #ifdef DEBUG
 102     std::cerr << "WPGImportFilter::cancel" << std::endl;
 103 #endif
 104 }
 105
 106 // XImporter
 107 void SAL_CALL WPGImportFilter::setTargetDocument( const Reference< ::com::sun::star::lang::XComponent >& xDoc )
 108 throw (::com::sun::star::lang::IllegalArgumentException, RuntimeException)
 109 {
 110 #ifdef DEBUG
 111     std::cerr << "WPGImportFilter::setTargetDocument" << std::endl;
 112 #endif
 113     mxDoc = xDoc;
 114 }
 115
 116 // XExtendedFilterDetection
 117 OUString SAL_CALL WPGImportFilter::detect( com::sun::star::uno::Sequence< PropertyValue >& Descriptor )
 118 throw( com::sun::star::uno::RuntimeException )
 119 {
 120 #ifdef DEBUG
 121     std::cerr << "WPGImportFilter::detect" << std::endl;
 122 #endif
 123     OUString sTypeName;
 124     sal_Int32 nLength = Descriptor.getLength();
 125     sal_Int32 location = nLength;
 126     const PropertyValue *pValue = Descriptor.getConstArray();
 127     Reference < XInputStream > xInputStream;
 128     for ( sal_Int32 i = 0 ; i < nLength; i++)
 129     {
 130         if ( pValue[i].Name == "TypeName" )
 131             location=i;
 132         else if ( pValue[i].Name == "InputStream" )
 133             pValue[i].Value >>= xInputStream;
 134     }
 135
 136     if (!xInputStream.is())
 137         return OUString();
 138
 139     WPXSvInputStream input( xInputStream );
 140
 141     if (libwpg::WPGraphics::isSupported(&input))
 142         sTypeName = "draw_WordPerfect_Graphics";
 143
 144     if (!sTypeName.isEmpty())
 145     {
 146         if ( location == nLength )
 147         {
 148             Descriptor.realloc(nLength+1);
 149             Descriptor[location].Name = "TypeName";
 150         }
 151
 152         Descriptor[location].Value <<=sTypeName;
 153     }
 154     return sTypeName;
 155 }
 156
 157
 158 // XInitialization
 159 void SAL_CALL WPGImportFilter::initialize( const Sequence< Any >& aArguments )
 160 throw (Exception, RuntimeException)
 161 {
 162 #ifdef DEBUG
 163     std::cerr << "WPGImportFilter::initialize" << std::endl;
 164 #endif
 165     Sequence < PropertyValue > aAnySeq;
 166     sal_Int32 nLength = aArguments.getLength();
 167     if ( nLength && ( aArguments[0] >>= aAnySeq ) )
 168     {
 169         const PropertyValue *pValue = aAnySeq.getConstArray();
 170         nLength = aAnySeq.getLength();
 171         for ( sal_Int32 i = 0 ; i < nLength; i++)
 172         {
 173             if ( pValue[i].Name == "Type" )
 174             {
 175                 pValue[i].Value >>= msFilterName;
 176                 break;
 177             }
 178         }
 179     }
 180 }
 181 OUString WPGImportFilter_getImplementationName ()
 182 throw (RuntimeException)
 183 {
 184 #ifdef DEBUG
 185     std::cerr << "WPGImportFilter_getImplementationName" << std::endl;
 186 #endif
 187     return OUString (  "com.sun.star.comp.Draw.WPGImportFilter"  );
 188 }
 189
 190 #define SERVICE_NAME1 "com.sun.star.document.ImportFilter"
 191 #define SERVICE_NAME2 "com.sun.star.document.ExtendedTypeDetection"
 192 sal_Bool SAL_CALL WPGImportFilter_supportsService( const OUString &ServiceName )
 193 throw (RuntimeException)
 194 {
 195 #ifdef DEBUG
 196     std::cerr << "WPGImportFilter_supportsService" << std::endl;
 197 #endif
 198     return ( ServiceName == SERVICE_NAME1 || ServiceName == SERVICE_NAME2 );
 199 }
 200 Sequence< OUString > SAL_CALL WPGImportFilter_getSupportedServiceNames(  )
 201 throw (RuntimeException)
 202 {
 203 #ifdef DEBUG
 204     std::cerr << "WPGImportFilter_getSupportedServiceNames" << std::endl;
 205 #endif
 206     Sequence < OUString > aRet(2);
 207     OUString *pArray = aRet.getArray();
 208     pArray[0] =  OUString (  SERVICE_NAME1  );
 209     pArray[1] =  OUString (  SERVICE_NAME2  );
 210     return aRet;
 211 }
 212 #undef SERVICE_NAME2
 213 #undef SERVICE_NAME1
 214
 215 Reference< XInterface > SAL_CALL WPGImportFilter_createInstance( const Reference< XComponentContext > & rContext)
 216 throw( Exception )
 217 {
 218 #ifdef DEBUG
 219     std::cerr << "WPGImportFilter_createInstance" << std::endl;
 220 #endif
 221     return (cppu::OWeakObject *) new WPGImportFilter( rContext );
 222 }
 223
 224 // XServiceInfo
 225 OUString SAL_CALL WPGImportFilter::getImplementationName(  )
 226 throw (RuntimeException)
 227 {
 228 #ifdef DEBUG
 229     std::cerr << "WPGImportFilter::getImplementationName" << std::endl;
 230 #endif
 231     return WPGImportFilter_getImplementationName();
 232 }
 233 sal_Bool SAL_CALL WPGImportFilter::supportsService( const OUString &rServiceName )
 234 throw (RuntimeException)
 235 {
 236 #ifdef DEBUG
 237     std::cerr << "WPGImportFilter::supportsService" << std::endl;
 238 #endif
 239     return WPGImportFilter_supportsService( rServiceName );
 240 }
 241 Sequence< OUString > SAL_CALL WPGImportFilter::getSupportedServiceNames(  )
 242 throw (RuntimeException)
 243 {
 244 #ifdef DEBUG
 245     std::cerr << "WPGImportFilter::getSupportedServiceNames" << std::endl;
 246 #endif
 247     return WPGImportFilter_getSupportedServiceNames();
 248 }
 249
 250 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */