writerfilter/source/dmapper/FontTable.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 "FontTable.hxx"
  21 #include <o3tl/deleter.hxx>
  22 #include <ooxml/resourceids.hxx>
  23 #include <utility>
  24 #include <vector>
  25 #include <sal/log.hxx>
  26 #include <rtl/tencinfo.h>
  27 #include <vcl/embeddedfontshelper.hxx>
  28 #include <unotools/fontdefs.hxx>
  29
  30 using namespace com::sun::star;
  31
  32 namespace writerfilter::dmapper
  33 {
  34
  35 struct FontTable_Impl
  36 {
  37     std::unique_ptr<EmbeddedFontsHelper, o3tl::default_delete<EmbeddedFontsHelper>> xEmbeddedFontHelper;
  38     std::vector< FontEntry::Pointer_t > aFontEntries;
  39     FontEntry::Pointer_t pCurrentEntry;
  40     FontTable_Impl() {}
  41 };
  42
  43 FontTable::FontTable()
  44 : LoggedProperties("FontTable")
  45 , LoggedTable("FontTable")
  46 , LoggedStream("FontTable")
  47 , m_pImpl( new FontTable_Impl )
  48 {
  49 }
  50
  51 FontTable::~FontTable()
  52 {
  53 }
  54
  55 void FontTable::lcl_attribute(Id Name, Value & val)
  56 {
  57     SAL_WARN_IF( !m_pImpl->pCurrentEntry, "writerfilter.dmapper", "current entry has to be set here" );
  58     if(!m_pImpl->pCurrentEntry)
  59         return ;
  60     int nIntValue = val.getInt();
  61     OUString sValue = val.getString();
  62     switch(Name)
  63     {
  64         case NS_ooxml::LN_CT_Pitch_val:
  65             if (static_cast<Id>(nIntValue) == NS_ooxml::LN_Value_ST_Pitch_fixed)
  66                 ;
  67             else if (static_cast<Id>(nIntValue) == NS_ooxml::LN_Value_ST_Pitch_variable)
  68                 ;
  69             else if (static_cast<Id>(nIntValue) == NS_ooxml::LN_Value_ST_Pitch_default)
  70                 ;
  71             else
  72                 SAL_WARN("writerfilter.dmapper", "FontTable::lcl_attribute: unhandled NS_ooxml::CT_Pitch_val: " << nIntValue);
  73             break;
  74         case NS_ooxml::LN_CT_Font_name:
  75             m_pImpl->pCurrentEntry->sFontName = sValue;
  76             break;
  77         case NS_ooxml::LN_CT_Charset_val:
  78             // w:characterSet has higher priority, set only if that one is not set
  79             if( m_pImpl->pCurrentEntry->nTextEncoding == RTL_TEXTENCODING_DONTKNOW )
  80             {
  81                 m_pImpl->pCurrentEntry->nTextEncoding = rtl_getTextEncodingFromWindowsCharset( nIntValue );
  82                 if( IsOpenSymbol( m_pImpl->pCurrentEntry->sFontName ))
  83                     m_pImpl->pCurrentEntry->nTextEncoding = RTL_TEXTENCODING_SYMBOL;
  84             }
  85             break;
  86         case NS_ooxml::LN_CT_Charset_characterSet:
  87         {
  88             OString tmp;
  89             sValue.convertToString( &tmp, RTL_TEXTENCODING_ASCII_US, OUSTRING_TO_OSTRING_CVTFLAGS );
  90             m_pImpl->pCurrentEntry->nTextEncoding = rtl_getTextEncodingFromMimeCharset( tmp.getStr() );
  91             // Older LO versions used to write incorrect character set for OpenSymbol, fix.
  92             if( IsOpenSymbol( m_pImpl->pCurrentEntry->sFontName ))
  93                 m_pImpl->pCurrentEntry->nTextEncoding = RTL_TEXTENCODING_SYMBOL;
  94             break;
  95         }
  96         default: ;
  97     }
  98 }
  99
 100 void FontTable::lcl_sprm(Sprm& rSprm)
 101 {
 102     SAL_WARN_IF( !m_pImpl->pCurrentEntry, "writerfilter.dmapper", "current entry has to be set here" );
 103     if(!m_pImpl->pCurrentEntry)
 104         return ;
 105     sal_uInt32 nSprmId = rSprm.getId();
 106
 107     switch(nSprmId)
 108     {
 109         case NS_ooxml::LN_CT_Font_charset:
 110         case NS_ooxml::LN_CT_Font_pitch:
 111             resolveSprm( rSprm );
 112             break;
 113         case NS_ooxml::LN_CT_Font_embedRegular:
 114         case NS_ooxml::LN_CT_Font_embedBold:
 115         case NS_ooxml::LN_CT_Font_embedItalic:
 116         case NS_ooxml::LN_CT_Font_embedBoldItalic:
 117         {
 118             writerfilter::Reference< Properties >::Pointer_t pProperties = rSprm.getProps();
 119             if( pProperties )
 120             {
 121                 EmbeddedFontHandler handler(*this, m_pImpl->pCurrentEntry->sFontName,
 122                     nSprmId == NS_ooxml::LN_CT_Font_embedRegular ? u""
 123                     : nSprmId == NS_ooxml::LN_CT_Font_embedBold ? u"b"
 124                     : nSprmId == NS_ooxml::LN_CT_Font_embedItalic ? u"i"
 125                     : /*NS_ooxml::LN_CT_Font_embedBoldItalic*/ u"bi" );
 126                 pProperties->resolve( handler );
 127             }
 128             break;
 129         }
 130         case NS_ooxml::LN_CT_Font_altName:
 131             break;
 132         case NS_ooxml::LN_CT_Font_panose1:
 133             break;
 134         case NS_ooxml::LN_CT_Font_family:
 135             break;
 136         case NS_ooxml::LN_CT_Font_sig:
 137             break;
 138         case NS_ooxml::LN_CT_Font_notTrueType:
 139             break;
 140         default:
 141             SAL_WARN("writerfilter.dmapper", "FontTable::lcl_sprm: unhandled token: " << nSprmId);
 142             break;
 143     }
 144 }
 145
 146 void FontTable::resolveSprm(Sprm & r_Sprm)
 147 {
 148     writerfilter::Reference<Properties>::Pointer_t pProperties = r_Sprm.getProps();
 149     if( pProperties )
 150         pProperties->resolve(*this);
 151 }
 152
 153 void FontTable::lcl_entry(writerfilter::Reference<Properties>::Pointer_t ref)
 154 {
 155     //create a new font entry
 156     SAL_WARN_IF( m_pImpl->pCurrentEntry, "writerfilter.dmapper", "current entry has to be NULL here" );
 157     m_pImpl->pCurrentEntry = new FontEntry;
 158     ref->resolve(*this);
 159     //append it to the table
 160     m_pImpl->aFontEntries.push_back( m_pImpl->pCurrentEntry );
 161     m_pImpl->pCurrentEntry.clear();
 162 }
 163
 164 void FontTable::lcl_startSectionGroup()
 165 {
 166 }
 167
 168 void FontTable::lcl_endSectionGroup()
 169 {
 170 }
 171
 172 void FontTable::lcl_startParagraphGroup()
 173 {
 174 }
 175
 176 void FontTable::lcl_endParagraphGroup()
 177 {
 178 }
 179
 180 void FontTable::lcl_startCharacterGroup()
 181 {
 182 }
 183
 184 void FontTable::lcl_endCharacterGroup()
 185 {
 186 }
 187
 188 void FontTable::lcl_text(const sal_uInt8*, size_t )
 189 {
 190 }
 191
 192 void FontTable::lcl_utext(const sal_Unicode*, size_t)
 193 {
 194 }
 195
 196 void FontTable::lcl_props(writerfilter::Reference<Properties>::Pointer_t)
 197 {
 198 }
 199
 200 void FontTable::lcl_table(Id, writerfilter::Reference<Table>::Pointer_t)
 201 {
 202 }
 203
 204 void FontTable::lcl_substream(Id, ::writerfilter::Reference<Stream>::Pointer_t)
 205 {
 206 }
 207
 208 void FontTable::lcl_startShape(uno::Reference<drawing::XShape> const&)
 209 {
 210 }
 211
 212 void FontTable::lcl_endShape( )
 213 {
 214 }
 215
 216 FontEntry::Pointer_t FontTable::getFontEntry(sal_uInt32 nIndex)
 217 {
 218     return (m_pImpl->aFontEntries.size() > nIndex)
 219         ?   m_pImpl->aFontEntries[nIndex]
 220         :   FontEntry::Pointer_t();
 221 }
 222
 223 sal_uInt32 FontTable::size()
 224 {
 225     return m_pImpl->aFontEntries.size();
 226 }
 227
 228 void FontTable::addEmbeddedFont(const css::uno::Reference<css::io::XInputStream>& stream,
 229                                 const OUString& fontName, std::u16string_view extra,
 230                                 std::vector<unsigned char> const & key)
 231 {
 232     if (!m_pImpl->xEmbeddedFontHelper)
 233         m_pImpl->xEmbeddedFontHelper.reset(new EmbeddedFontsHelper);
 234     m_pImpl->xEmbeddedFontHelper->addEmbeddedFont(stream, fontName, extra, key);
 235 }
 236
 237 EmbeddedFontHandler::EmbeddedFontHandler(FontTable& rFontTable, OUString _fontName, std::u16string_view style )
 238 : LoggedProperties("EmbeddedFontHandler")
 239 , m_fontTable( rFontTable )
 240 , m_fontName(std::move( _fontName ))
 241 , m_style( style )
 242 {
 243 }
 244
 245 EmbeddedFontHandler::~EmbeddedFontHandler()
 246 {
 247     if( !m_inputStream.is())
 248         return;
 249     std::vector< unsigned char > key( 32 );
 250     if( !m_fontKey.isEmpty())
 251     {   // key for unobfuscating
 252         //  1 3 5 7 10 2  5 7 20 2  5 7 9 1 3 5
 253         // {62E79491-959F-41E9-B76B-6B32631DEA5C}
 254         static const int pos[ 16 ] = { 35, 33, 31, 29, 27, 25, 22, 20, 17, 15, 12, 10, 7, 5, 3, 1 };
 255         for( int i = 0;
 256              i < 16;
 257              ++i )
 258         {
 259             int v1 = m_fontKey[ pos[ i ]];
 260             int v2 = m_fontKey[ pos[ i ] + 1 ];
 261             assert(( v1 >= '0' && v1 <= '9' ) || ( v1 >= 'A' && v1 <= 'F' ));
 262             assert(( v2 >= '0' && v2 <= '9' ) || ( v2 >= 'A' && v2 <= 'F' ));
 263             int val = ( v1 - ( v1 <= '9' ? '0' : 'A' - 10 )) * 16 + v2 - ( v2 <= '9' ? '0' : 'A' - 10 );
 264             key[ i ] = val;
 265             key[ i + 16 ] = val;
 266         }
 267     }
 268     m_fontTable.addEmbeddedFont( m_inputStream, m_fontName, m_style, key );
 269     m_inputStream->closeInput();
 270 }
 271
 272 void EmbeddedFontHandler::lcl_attribute( Id name, Value& val )
 273 {
 274     OUString sValue = val.getString();
 275     switch( name )
 276     {
 277         case NS_ooxml::LN_CT_FontRel_fontKey:
 278             m_fontKey = sValue;
 279             break;
 280         case NS_ooxml::LN_CT_Rel_id:
 281             break;
 282         case NS_ooxml::LN_CT_FontRel_subsetted:
 283             break; // TODO? Let's just ignore this for now and hope
 284                    // it doesn't break anything.
 285         case NS_ooxml::LN_inputstream: // the actual font data as stream
 286             val.getAny() >>= m_inputStream;
 287             break;
 288         default:
 289             break;
 290     }
 291 }
 292
 293 void EmbeddedFontHandler::lcl_sprm( Sprm& )
 294 {
 295 }
 296
 297
 298 }//namespace writerfilter::dmapper
 299
 300 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */