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dsl.cc
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/* This file is (c) 2008-2012 Konstantin Isakov <ikm@goldendict.org>
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
#include "dsl.hh"
#include "dsl_details.hh"
#include "btreeidx.hh"
#include "folding.hh"
#include "utf8.hh"
#include "chunkedstorage.hh"
#include "dictzip.h"
#include "htmlescape.hh"
#include "iconv.hh"
#include "filetype.hh"
#include "fsencoding.hh"
#include "audiolink.hh"
#include "langcoder.hh"
#include "wstring_qt.hh"
#include "zipfile.hh"
#include "indexedzip.hh"
#include "gddebug.hh"
#include "tiff.hh"
#include "fulltextsearch.hh"
#include "ftshelpers.hh"
#include "language.hh"
#include <zlib.h>
#include <map>
#include <set>
#include <string>
#include <vector>
#include <list>
#include <wctype.h>
#include <QSemaphore>
#include <QThreadPool>
#include <QAtomicInt>
#include <QUrl>
#include <QDir>
#include <QFileInfo>
#include <QPainter>
#include <QMap>
#include <QStringList>
#if QT_VERSION >= QT_VERSION_CHECK( 5, 0, 0 )
#include <QRegularExpression>
#else
#include <QRegExp>
#endif
// For TIFF conversion
#include <QImage>
#include <QByteArray>
#include <QBuffer>
// For SVG handling
#include <QtSvg/QSvgRenderer>
#include "qt4x5.hh"
namespace Dsl {
using namespace Details;
using std::map;
using std::multimap;
using std::pair;
using std::set;
using std::string;
using gd::wstring;
using gd::wchar;
using std::vector;
using std::list;
using BtreeIndexing::WordArticleLink;
using BtreeIndexing::IndexedWords;
using BtreeIndexing::IndexInfo;
namespace {
DEF_EX_STR( exCantReadFile, "Can't read file", Dictionary::Ex )
DEF_EX( exUserAbort, "User abort", Dictionary::Ex )
DEF_EX_STR( exDictzipError, "DICTZIP error", Dictionary::Ex )
enum
{
Signature = 0x584c5344, // DSLX on little-endian, XLSD on big-endian
CurrentFormatVersion = 23 + BtreeIndexing::FormatVersion + Folding::Version,
CurrentZipSupportVersion = 2,
CurrentFtsIndexVersion = 7
};
struct IdxHeader
{
uint32_t signature; // First comes the signature, DSLX
uint32_t formatVersion; // File format version (CurrentFormatVersion)
uint32_t zipSupportVersion; // Zip support version -- narrows down reindexing
// when it changes only for dictionaries with the
// zip files
int dslEncoding; // Which encoding is used for the file indexed
uint32_t chunksOffset; // The offset to chunks' storage
uint32_t hasAbrv; // Non-zero means file has abrvs at abrvAddress
uint32_t abrvAddress; // Address of abrv map in the chunked storage
uint32_t indexBtreeMaxElements; // Two fields from IndexInfo
uint32_t indexRootOffset;
uint32_t articleCount; // Number of articles this dictionary has
uint32_t wordCount; // Number of headwords this dictionary has
uint32_t langFrom; // Source language
uint32_t langTo; // Target language
uint32_t hasZipFile; // Non-zero means there's a zip file with resources
// present
uint32_t hasSoundDictionaryName;
uint32_t zipIndexBtreeMaxElements; // Two fields from IndexInfo of the zip
// resource index.
uint32_t zipIndexRootOffset;
}
#ifndef _MSC_VER
__attribute__((packed))
#endif
;
struct InsidedCard
{
uint32_t offset;
uint32_t size;
QVector< wstring > headwords;
InsidedCard( uint32_t _offset, uint32_t _size, QVector< wstring > const & words ) :
offset( _offset ), size( _size ), headwords( words )
{}
InsidedCard( InsidedCard const & e ) :
offset( e.offset ), size( e.size ), headwords( e.headwords )
{}
InsidedCard() {}
};
bool indexIsOldOrBad( string const & indexFile, bool hasZipFile )
{
File::Class idx( indexFile, "rb" );
IdxHeader header;
return idx.readRecords( &header, sizeof( header ), 1 ) != 1 ||
header.signature != Signature ||
header.formatVersion != CurrentFormatVersion ||
(bool) header.hasZipFile != hasZipFile ||
( hasZipFile && header.zipSupportVersion != CurrentZipSupportVersion );
}
class DslDictionary: public BtreeIndexing::BtreeDictionary
{
Mutex idxMutex;
File::Class idx;
IdxHeader idxHeader;
sptr< ChunkedStorage::Reader > chunks;
string preferredSoundDictionary;
map< string, string > abrv;
Mutex dzMutex;
dictData * dz;
Mutex resourceZipMutex;
IndexedZip resourceZip;
BtreeIndex resourceZipIndex;
QAtomicInt deferredInitDone;
Mutex deferredInitMutex;
bool deferredInitRunnableStarted;
QSemaphore deferredInitRunnableExited;
string initError;
int optionalPartNom;
quint8 articleNom;
int maxPictureWidth;
wstring currentHeadword;
public:
DslDictionary( string const & id, string const & indexFile,
vector< string > const & dictionaryFiles,
int maxPictureWidth_ );
virtual void deferredInit();
~DslDictionary();
virtual unsigned long getArticleCount() const
{ return idxHeader.articleCount; }
virtual unsigned long getWordCount() const
{ return idxHeader.wordCount; }
inline virtual quint32 getLangFrom() const
{ return idxHeader.langFrom; }
inline virtual quint32 getLangTo() const
{ return idxHeader.langTo; }
#if 0
virtual vector< wstring > findHeadwordsForSynonym( wstring const & )
THROW_SPEC( std::exception )
{
return vector< wstring >();
}
#endif
virtual sptr< Dictionary::DataRequest > getArticle( wstring const &,
vector< wstring > const & alts,
wstring const &,
bool ignoreDiacritics )
THROW_SPEC( std::exception );
virtual sptr< Dictionary::DataRequest > getResource( string const & name )
THROW_SPEC( std::exception );
virtual sptr< Dictionary::DataRequest > getSearchResults( QString const & searchString,
int searchMode, bool matchCase,
int distanceBetweenWords,
int maxResults,
bool ignoreWordsOrder,
bool ignoreDiacritics );
virtual QString const& getDescription();
virtual QString getMainFilename();
virtual void getArticleText( uint32_t articleAddress, QString & headword, QString & text );
virtual void makeFTSIndex(QAtomicInt & isCancelled, bool firstIteration );
virtual void setFTSParameters( Config::FullTextSearch const & fts )
{
if( ensureInitDone().size() )
return;
can_FTS = fts.enabled
&& !fts.disabledTypes.contains( "DSL", Qt::CaseInsensitive )
&& ( fts.maxDictionarySize == 0 || getArticleCount() <= fts.maxDictionarySize );
}
virtual uint32_t getFtsIndexVersion()
{ return CurrentFtsIndexVersion; }
protected:
virtual void loadIcon() throw();
private:
virtual string const & ensureInitDone();
void doDeferredInit();
/// Loads the article. Does not process the DSL language.
void loadArticle( uint32_t address,
wstring const & requestedHeadwordFolded,
wstring & tildeValue,
wstring & displayedHeadword,
unsigned & headwordIndex,
wstring & articleText );
/// Converts DSL language to an Html.
string dslToHtml( wstring const &, wstring const & headword = wstring() );
// Parts of dslToHtml()
string nodeToHtml( ArticleDom::Node const & );
string processNodeChildren( ArticleDom::Node const & node );
bool hasHiddenZones() /// Return true if article has hidden zones
{ return optionalPartNom != 0; }
friend class DslArticleRequest;
friend class DslResourceRequest;
friend class DslFTSResultsRequest;
friend class DslDeferredInitRunnable;
};
DslDictionary::DslDictionary( string const & id,
string const & indexFile,
vector< string > const & dictionaryFiles,
int maxPictureWidth_ ):
BtreeDictionary( id, dictionaryFiles ),
idx( indexFile, "rb" ),
idxHeader( idx.read< IdxHeader >() ),
dz( 0 ),
deferredInitRunnableStarted( false ),
optionalPartNom( 0 ),
articleNom( 0 ),
maxPictureWidth( maxPictureWidth_ )
{
can_FTS = true;
ftsIdxName = indexFile + "_FTS";
if( !Dictionary::needToRebuildIndex( dictionaryFiles, ftsIdxName )
&& !FtsHelpers::ftsIndexIsOldOrBad( ftsIdxName, this ) )
FTS_index_completed.ref();
// Read the dictionary name
idx.seek( sizeof( idxHeader ) );
vector< char > dName( idx.read< uint32_t >() );
if( dName.size() > 0 )
{
idx.read( &dName.front(), dName.size() );
setDictionaryName(string( &dName.front(), dName.size() ));
}
vector< char > sName( idx.read< uint32_t >() );
if( sName.size() > 0 )
{
idx.read( &sName.front(), sName.size() );
preferredSoundDictionary = string( &sName.front(), sName.size() );
}
// Everything else would be done in deferred init
}
DslDictionary::~DslDictionary()
{
Mutex::Lock _( deferredInitMutex );
// Wait for init runnable to complete if it was ever started
if ( deferredInitRunnableStarted )
deferredInitRunnableExited.acquire();
if ( dz )
dict_data_close( dz );
}
//////// DslDictionary::deferredInit()
class DslDeferredInitRunnable: public QRunnable
{
DslDictionary & dictionary;
QSemaphore & hasExited;
public:
DslDeferredInitRunnable( DslDictionary & dictionary_,
QSemaphore & hasExited_ ):
dictionary( dictionary_ ), hasExited( hasExited_ )
{}
~DslDeferredInitRunnable()
{
hasExited.release();
}
virtual void run()
{
dictionary.doDeferredInit();
}
};
void DslDictionary::deferredInit()
{
if ( !Qt4x5::AtomicInt::loadAcquire( deferredInitDone ) )
{
Mutex::Lock _( deferredInitMutex );
if ( Qt4x5::AtomicInt::loadAcquire( deferredInitDone ) )
return;
if ( !deferredInitRunnableStarted )
{
QThreadPool::globalInstance()->start(
new DslDeferredInitRunnable( *this, deferredInitRunnableExited ),
-1000 );
deferredInitRunnableStarted = true;
}
}
}
string const & DslDictionary::ensureInitDone()
{
// Simple, really.
doDeferredInit();
return initError;
}
void DslDictionary::doDeferredInit()
{
if ( !Qt4x5::AtomicInt::loadAcquire( deferredInitDone ) )
{
Mutex::Lock _( deferredInitMutex );
if ( Qt4x5::AtomicInt::loadAcquire( deferredInitDone ) )
return;
// Do deferred init
try
{
// Don't lock index file - no one should be working with it until
// the init is complete.
//Mutex::Lock _( idxMutex );
chunks = sptr< ChunkedStorage::Reader >(new ChunkedStorage::Reader( idx, idxHeader.chunksOffset ));
// Open the .dsl file
DZ_ERRORS error;
dz = dict_data_open( getDictionaryFilenames()[ 0 ].c_str(), &error, 0 );
if ( !dz )
throw exDictzipError( string( dz_error_str( error ) )
+ "(" + getDictionaryFilenames()[ 0 ] + ")" );
// Read the abrv, if any
if ( idxHeader.hasAbrv )
{
vector< char > chunk;
char * abrvBlock = chunks->getBlock( idxHeader.abrvAddress, chunk );
uint32_t total;
memcpy( &total, abrvBlock, sizeof( uint32_t ) );
abrvBlock += sizeof( uint32_t );
GD_DPRINTF( "Loading %u abbrv\n", total );
while( total-- )
{
uint32_t keySz;
memcpy( &keySz, abrvBlock, sizeof( uint32_t ) );
abrvBlock += sizeof( uint32_t );
char * key = abrvBlock;
abrvBlock += keySz;
uint32_t valueSz;
memcpy( &valueSz, abrvBlock, sizeof( uint32_t ) );
abrvBlock += sizeof( uint32_t );
abrv[ string( key, keySz ) ] = string( abrvBlock, valueSz );
abrvBlock += valueSz;
}
}
// Initialize the index
openIndex( IndexInfo( idxHeader.indexBtreeMaxElements,
idxHeader.indexRootOffset ),
idx, idxMutex );
// Open a resource zip file, if there's one
if ( idxHeader.hasZipFile &&
( idxHeader.zipIndexBtreeMaxElements ||
idxHeader.zipIndexRootOffset ) )
{
resourceZip.openIndex( IndexInfo( idxHeader.zipIndexBtreeMaxElements,
idxHeader.zipIndexRootOffset ),
idx, idxMutex );
QString zipName = QDir::fromNativeSeparators(
FsEncoding::decode( getDictionaryFilenames().back().c_str() ) );
if ( zipName.endsWith( ".zip", Qt::CaseInsensitive ) ) // Sanity check
resourceZip.openZipFile( zipName );
}
}
catch( std::exception & e )
{
initError = e.what();
}
catch( ... )
{
initError = "Unknown error";
}
deferredInitDone.ref();
}
}
void DslDictionary::loadIcon() throw()
{
if ( dictionaryIconLoaded )
return;
QString fileName =
QDir::fromNativeSeparators( FsEncoding::decode( getDictionaryFilenames()[ 0 ].c_str() ) );
// Remove the extension
if ( fileName.endsWith( ".dsl.dz", Qt::CaseInsensitive ) )
fileName.chop( 6 );
else
fileName.chop( 3 );
if ( !loadIconFromFile( fileName ) )
{
// Load failed -- use default icons
dictionaryIcon = QIcon(":/icons/icon32_dsl.png");
dictionaryNativeIcon = QIcon(":/icons/icon_dsl_native.png");
}
dictionaryIconLoaded = true;
}
/// Determines whether or not this char is treated as whitespace for dsl
/// parsing or not. We can't rely on any Unicode standards here, since the
/// only standard that matters here is the original Dsl compiler's insides.
/// Some dictionaries, for instance, are known to specifically use a non-
/// breakable space (0xa0) to indicate that a headword begins with a space,
/// so nbsp is not a whitespace character for Dsl compiler.
/// For now we have only space and tab, since those are most likely the only
/// ones recognized as spaces by that compiler.
bool isDslWs( wchar ch )
{
switch( ch )
{
case ' ':
case '\t':
return true;
default:
return false;
}
}
void DslDictionary::loadArticle( uint32_t address,
wstring const & requestedHeadwordFolded,
wstring & tildeValue,
wstring & displayedHeadword,
unsigned & headwordIndex,
wstring & articleText )
{
wstring articleData;
{
vector< char > chunk;
char * articleProps;
{
Mutex::Lock _( idxMutex );
articleProps = chunks->getBlock( address, chunk );
}
uint32_t articleOffset, articleSize;
memcpy( &articleOffset, articleProps, sizeof( articleOffset ) );
memcpy( &articleSize, articleProps + sizeof( articleOffset ),
sizeof( articleSize ) );
GD_DPRINTF( "offset = %x\n", articleOffset );
char * articleBody;
{
Mutex::Lock _( dzMutex );
articleBody = dict_data_read_( dz, articleOffset, articleSize, 0, 0 );
}
if ( !articleBody )
{
// throw exCantReadFile( getDictionaryFilenames()[ 0 ] );
articleData = GD_NATIVE_TO_WS( L"\n\r\t" ) + gd::toWString( QString( "DICTZIP error: " ) + dict_error_str( dz ) );
}
else
{
try
{
articleData =
DslIconv::toWstring(
DslIconv::getEncodingNameFor( DslEncoding( idxHeader.dslEncoding ) ),
articleBody, articleSize );
free( articleBody );
// Strip DSL comments
bool b = false;
stripComments( articleData, b );
}
catch( ... )
{
free( articleBody );
throw;
}
}
}
size_t pos = 0;
bool hadFirstHeadword = false;
bool foundDisplayedHeadword = false;
// Check is we retrieve insided card
bool insidedCard = isDslWs( articleData.at( 0 ) );
wstring tildeValueWithUnsorted; // This one has unsorted parts left
for( headwordIndex = 0; ; )
{
size_t begin = pos;
pos = articleData.find_first_of( GD_NATIVE_TO_WS( L"\n\r" ), begin );
if ( pos == wstring::npos )
pos = articleData.size();
if ( !foundDisplayedHeadword )
{
// Process the headword
wstring rawHeadword = wstring( articleData, begin, pos - begin );
if( insidedCard && !rawHeadword.empty() && isDslWs( rawHeadword[ 0 ] ) )
{
// Headword of the insided card
wstring::size_type hpos = rawHeadword.find( L'@' );
if( hpos != string::npos )
{
wstring head = Folding::trimWhitespace( rawHeadword.substr( hpos + 1 ) );
hpos = head.find( L'~' );
while( hpos != string::npos )
{
if( hpos == 0 || head[ hpos ] != L'\\' )
break;
hpos = head.find( L'~', hpos + 1 );
}
if( hpos == string::npos )
rawHeadword = head;
else
rawHeadword.clear();
}
}
if( !rawHeadword.empty() )
{
if ( !hadFirstHeadword )
{
// We need our tilde expansion value
tildeValue = rawHeadword;
list< wstring > lst;
expandOptionalParts( tildeValue, &lst );
if ( lst.size() ) // Should always be
tildeValue = lst.front();
tildeValueWithUnsorted = tildeValue;
processUnsortedParts( tildeValue, false );
}
wstring str = rawHeadword;
if ( hadFirstHeadword )
expandTildes( str, tildeValueWithUnsorted );
processUnsortedParts( str, true );
str = Folding::applySimpleCaseOnly( str );
list< wstring > lst;
expandOptionalParts( str, &lst );
// Does one of the results match the requested word? If so, we'd choose
// it as our headword.
for( list< wstring >::iterator i = lst.begin(); i != lst.end(); ++i )
{
unescapeDsl( *i );
normalizeHeadword( *i );
if ( Folding::trimWhitespace( *i ) == requestedHeadwordFolded )
{
// Found it. Now we should make a displayed headword for it.
if ( hadFirstHeadword )
expandTildes( rawHeadword, tildeValueWithUnsorted );
processUnsortedParts( rawHeadword, false );
displayedHeadword = rawHeadword;
foundDisplayedHeadword = true;
break;
}
}
if ( !foundDisplayedHeadword )
{
++headwordIndex;
hadFirstHeadword = true;
}
}
}
if ( pos == articleData.size() )
break;
// Skip \n\r
if ( articleData[ pos ] == '\r' )
++pos;
if ( pos != articleData.size() )
{
if ( articleData[ pos ] == '\n' )
++pos;
}
if ( pos == articleData.size() )
{
// Ok, it's end of article
break;
}
if( isDslWs( articleData[ pos ] ) )
{
// Check for begin article text
if( insidedCard )
{
// Check for next insided headword
wstring::size_type hpos = articleData.find_first_of( GD_NATIVE_TO_WS( L"\n\r" ), pos );
if ( hpos == wstring::npos )
hpos = articleData.size();
wstring str = wstring( articleData, pos, hpos - pos );
hpos = str.find( L'@');
if( hpos == wstring::npos || str[ hpos - 1 ] == L'\\' || !isAtSignFirst( str ) )
break;
}
else
break;
}
}
if ( !foundDisplayedHeadword )
{
// This is strange. Anyway, use tilde expansion value, it's better
// than nothing (or requestedHeadwordFolded for insided card.
if( insidedCard )
displayedHeadword = requestedHeadwordFolded;
else
displayedHeadword = tildeValue;
}
if ( pos != articleData.size() )
articleText = wstring( articleData, pos );
else
articleText.clear();
}
string DslDictionary::dslToHtml( wstring const & str, wstring const & headword )
{
// Normalize the string
wstring normalizedStr = gd::normalize( str );
currentHeadword = headword;
ArticleDom dom( normalizedStr, getName(), headword );
optionalPartNom = 0;
string html = processNodeChildren( dom.root );
return html;
}
string DslDictionary::processNodeChildren( ArticleDom::Node const & node )
{
string result;
for( ArticleDom::Node::const_iterator i = node.begin(); i != node.end();
++i )
result += nodeToHtml( *i );
return result;
}
string DslDictionary::nodeToHtml( ArticleDom::Node const & node )
{
string result;
if ( !node.isTag )
{
result = Html::escape( Utf8::encode( node.text ) );
// Handle all end-of-line
string::size_type n;
// Strip all '\r'
while( ( n = result.find( '\r' ) ) != string::npos )
result.erase( n, 1 );
// Replace all '\n'
while( ( n = result.find( '\n' ) ) != string::npos )
result.replace( n, 1, "<p></p>" );
return result;
}
if ( node.tagName == GD_NATIVE_TO_WS( L"b" ) )
result += "<b class=\"dsl_b\">" + processNodeChildren( node ) + "</b>";
else
if ( node.tagName == GD_NATIVE_TO_WS( L"i" ) )
result += "<i class=\"dsl_i\">" + processNodeChildren( node ) + "</i>";
else
if ( node.tagName == GD_NATIVE_TO_WS( L"u" ) )
{
string nodeText = processNodeChildren( node );
if ( nodeText.size() && isDslWs( nodeText[ 0 ] ) )
result.push_back( ' ' ); // Fix a common problem where in "foo[i] bar[/i]"
// the space before "bar" gets underlined.
result += "<span class=\"dsl_u\">" + nodeText + "</span>";
}
else
if ( node.tagName == GD_NATIVE_TO_WS( L"c" ) )
{
result += "<font color=\"" + ( node.tagAttrs.size() ?
Html::escape( Utf8::encode( node.tagAttrs ) ) : string( "c_default_color" ) )
+ "\">" + processNodeChildren( node ) + "</font>";
}
else
if ( node.tagName == GD_NATIVE_TO_WS( L"*" ) )
{
string id = "O" + getId().substr( 0, 7 ) + "_" +
QString::number( articleNom ).toStdString() +
"_opt_" + QString::number( optionalPartNom++ ).toStdString();
result += "<span class=\"dsl_opt\" id=\"" + id + "\">" + processNodeChildren( node ) + "</span>";
}
else
if ( node.tagName == GD_NATIVE_TO_WS( L"m" ) )
result += "<div class=\"dsl_m\">" + processNodeChildren( node ) + "</div>";
else
if ( node.tagName.size() == 2 && node.tagName[ 0 ] == L'm' &&
iswdigit( node.tagName[ 1 ] ) )
result += "<div class=\"dsl_" + Utf8::encode( node.tagName ) + "\">" + processNodeChildren( node ) + "</div>";
else
if ( node.tagName == GD_NATIVE_TO_WS( L"trn" ) )
result += "<span class=\"dsl_trn\">" + processNodeChildren( node ) + "</span>";
else
if ( node.tagName == GD_NATIVE_TO_WS( L"ex" ) )
result += "<span class=\"dsl_ex\">" + processNodeChildren( node ) + "</span>";
else
if ( node.tagName == GD_NATIVE_TO_WS( L"com" ) )
result += "<span class=\"dsl_com\">" + processNodeChildren( node ) + "</span>";
else
if ( node.tagName == GD_NATIVE_TO_WS( L"s" ) || node.tagName == GD_NATIVE_TO_WS( L"video" ) )
{
string filename = Filetype::simplifyString( Utf8::encode( node.renderAsText() ), false );
string n =
getDictionaryFilenames()[ 0 ] + ".files" +
FsEncoding::separator() +
FsEncoding::encode( filename );
if ( Filetype::isNameOfSound( filename ) )
{
// If we have the file here, do the exact reference to this dictionary.
// Otherwise, make a global 'search' one.
bool search =
!File::exists( n ) && !File::exists( FsEncoding::dirname( getDictionaryFilenames()[ 0 ] ) +
FsEncoding::separator() +
FsEncoding::encode( filename ) ) &&
( !resourceZip.isOpen() ||
!resourceZip.hasFile( Utf8::decode( filename ) ) );
QUrl url;
url.setScheme( "gdau" );
url.setHost( QString::fromUtf8( search ? "search" : getId().c_str() ) );
url.setPath( Qt4x5::Url::ensureLeadingSlash( QString::fromUtf8( filename.c_str() ) ) );
if( search && idxHeader.hasSoundDictionaryName )
Qt4x5::Url::setFragment( url, QString::fromUtf8( preferredSoundDictionary.c_str() ) );
string ref = string( "\"" ) + url.toEncoded().data() + "\"";
result += addAudioLink( ref, getId() );
result += "<span class=\"dsl_s_wav\"><a href=" + ref
+ "><img src=\"qrcx://localhost/icons/playsound.png\" border=\"0\" align=\"absmiddle\" alt=\"Play\"/></a></span>";
}
else
if ( Filetype::isNameOfPicture( filename ) )
{
QUrl url;
url.setScheme( "bres" );
url.setHost( QString::fromUtf8( getId().c_str() ) );
url.setPath( Qt4x5::Url::ensureLeadingSlash( QString::fromUtf8( filename.c_str() ) ) );
vector< char > imgdata;
bool resize = false;
try
{
File::loadFromFile( n, imgdata );
}
catch( File::exCantOpen & )
{
try
{
n = FsEncoding::dirname( getDictionaryFilenames()[ 0 ] ) +
FsEncoding::separator() +
FsEncoding::encode( filename );
File::loadFromFile( n, imgdata );
}
catch( File::exCantOpen & )
{
// Try reading from zip file
if ( resourceZip.isOpen() )
{
Mutex::Lock _( resourceZipMutex );
resourceZip.loadFile( Utf8::decode( filename ), imgdata );
}
}
}
catch(...)
{
}
if( !imgdata.empty() )
{
if( Filetype::isNameOfSvg( filename ) )
{
// We don't need to render svg file now
QSvgRenderer svg;
svg.load( QByteArray::fromRawData( imgdata.data(), imgdata.size() ) );
if( svg.isValid() )
{
QSize imgsize = svg.defaultSize();
resize = maxPictureWidth > 0
&& imgsize.width() > maxPictureWidth;
}
}
else
{
QImage img = QImage::fromData( (unsigned char *) &imgdata.front(),
imgdata.size() );
#ifdef MAKE_EXTRA_TIFF_HANDLER
if( img.isNull() && Filetype::isNameOfTiff( filename ) )
GdTiff::tiffToQImage( &imgdata.front(), imgdata.size(), img );
#endif
resize = maxPictureWidth > 0
&& img.width() > maxPictureWidth;
}
}
if( resize )
{
string link( url.toEncoded().data() );
link.replace( 0, 4, "gdpicture" );
result += string( "<a href=\"" ) + link + "\">"
+ "<img src=\"" + url.toEncoded().data()
+ "\" alt=\"" + Html::escape( filename ) + "\""
+ "width=\"" + QString::number( maxPictureWidth).toStdString() + "\"/>"
+ "</a>";
}
else
result += string( "<img src=\"" ) + url.toEncoded().data()
+ "\" alt=\"" + Html::escape( filename ) + "\"/>";
}
else
if ( Filetype::isNameOfVideo( filename ) ) {
QUrl url;
url.setScheme( "gdvideo" );
url.setHost( QString::fromUtf8( getId().c_str() ) );
url.setPath( Qt4x5::Url::ensureLeadingSlash( QString::fromUtf8( filename.c_str() ) ) );
result += string( "<a class=\"dsl_s dsl_video\" href=\"" ) + url.toEncoded().data() + "\">"
+ "<span class=\"img\"></span>"
+ "<span class=\"filename\">" + processNodeChildren( node ) + "</span>" + "</a>";
}
else
{
// Unknown file type, downgrade to a hyperlink
QUrl url;
url.setScheme( "bres" );
url.setHost( QString::fromUtf8( getId().c_str() ) );
url.setPath( Qt4x5::Url::ensureLeadingSlash( QString::fromUtf8( filename.c_str() ) ) );
result += string( "<a class=\"dsl_s\" href=\"" ) + url.toEncoded().data()
+ "\">" + processNodeChildren( node ) + "</a>";
}
}
else
if ( node.tagName == GD_NATIVE_TO_WS( L"url" ) )
{
string link = Html::escape( Filetype::simplifyString( Utf8::encode( node.renderAsText() ), false ) );
if( QUrl::fromEncoded( link.c_str() ).scheme().isEmpty() )
link = "http://" + link;
QUrl url( QString::fromUtf8( link.c_str() ) );
if( url.isLocalFile() && url.host().isEmpty() )
{
// Convert relative links to local files to absolute ones
QString name = QFileInfo( getMainFilename() ).absolutePath();
name += url.toLocalFile();