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goldendict-ng/epwing_book.cc

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/* This file is (c) 2014 Abs62
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
#include "epwing_book.hh"
#include <QDir>
#include <QTextStream>
#include <QTextDocumentFragment>
#include <QHash>
#include "gddebug.hh"
#include "fsencoding.hh"
#include "audiolink.hh"
#include "wstring.hh"
#include "wstring_qt.hh"
#include "folding.hh"
#include "epwing_charmap.hh"
#include "htmlescape.hh"
#if defined( Q_OS_WIN32 ) || defined( Q_OS_MAC )
#define _FILE_OFFSET_BITS 64
#endif
#include <eb/text.h>
#include <eb/appendix.h>
#include <eb/error.h>
#include <eb/binary.h>
#include <eb/font.h>
#define HitsBufferSize 512
namespace Epwing {
void initialize()
{
eb_initialize_library();
}
void finalize()
{
eb_finalize_library();
}
namespace Book {
#define HookFunc(name) \
EB_Error_Code name(EB_Book *, EB_Appendix *, void*, EB_Hook_Code, int, \
const unsigned int*)
HookFunc( hook_newline );
HookFunc( hook_iso8859_1 );
HookFunc( hook_narrow_jisx0208 );
HookFunc( hook_wide_jisx0208 );
HookFunc( hook_gb2312 );
HookFunc( hook_superscript );
HookFunc( hook_subscript );
HookFunc( hook_decoration );
HookFunc( hook_color_image );
HookFunc( hook_gray_image );
HookFunc( hook_mono_image );
HookFunc( hook_wave );
HookFunc( hook_mpeg );
HookFunc( hook_narrow_font );
HookFunc( hook_wide_font );
HookFunc( hook_reference );
const EB_Hook hooks[] = {
{ EB_HOOK_NEWLINE, hook_newline },
{ EB_HOOK_ISO8859_1, hook_iso8859_1 },
{ EB_HOOK_NARROW_JISX0208, hook_narrow_jisx0208 },
{ EB_HOOK_WIDE_JISX0208, hook_wide_jisx0208 },
{ EB_HOOK_GB2312, hook_gb2312 },
{ EB_HOOK_BEGIN_SUBSCRIPT, hook_subscript },
{ EB_HOOK_END_SUBSCRIPT, hook_subscript },
{ EB_HOOK_BEGIN_SUPERSCRIPT, hook_superscript },
{ EB_HOOK_END_SUPERSCRIPT, hook_superscript },
{ EB_HOOK_BEGIN_DECORATION, hook_decoration },
{ EB_HOOK_END_DECORATION, hook_decoration },
{ EB_HOOK_BEGIN_COLOR_BMP, hook_color_image },
{ EB_HOOK_BEGIN_COLOR_JPEG, hook_color_image },
{ EB_HOOK_END_COLOR_GRAPHIC, hook_color_image },
{ EB_HOOK_BEGIN_IN_COLOR_BMP, hook_color_image },
{ EB_HOOK_BEGIN_IN_COLOR_JPEG, hook_color_image },
{ EB_HOOK_END_IN_COLOR_GRAPHIC, hook_color_image },
{ EB_HOOK_BEGIN_MONO_GRAPHIC, hook_mono_image },
{ EB_HOOK_END_MONO_GRAPHIC, hook_mono_image },
{ EB_HOOK_BEGIN_WAVE, hook_wave },
{ EB_HOOK_END_WAVE, hook_wave },
{ EB_HOOK_BEGIN_MPEG, hook_mpeg },
{ EB_HOOK_END_MPEG, hook_mpeg },
{ EB_HOOK_NARROW_FONT, hook_narrow_font },
{ EB_HOOK_WIDE_FONT, hook_wide_font },
{ EB_HOOK_BEGIN_REFERENCE, hook_reference },
{ EB_HOOK_END_REFERENCE, hook_reference },
{ EB_HOOK_NULL, NULL }
};
const EB_Hook refHooks[] = {
{ EB_HOOK_BEGIN_REFERENCE, hook_reference },
{ EB_HOOK_END_REFERENCE, hook_reference },
{ EB_HOOK_NULL, NULL }
};
#define EUC_TO_ASCII_TABLE_START 0xa0
#define EUC_TO_ASCII_TABLE_END 0xff
// Tables from EB library
static const unsigned char euc_a1_to_ascii_table[] = {
0x00, 0x20, 0x00, 0x00, 0x2c, 0x2e, 0x00, 0x3a, /* 0xa0 */
0x3b, 0x3f, 0x21, 0x00, 0x00, 0x00, 0x60, 0x00, /* 0xa8 */
0x5e, 0x7e, 0x5f, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb0 */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x2d, 0x2f, /* 0xb8 */
0x5c, 0x00, 0x00, 0x7c, 0x00, 0x00, 0x00, 0x27, /* 0xc0 */
0x00, 0x22, 0x28, 0x29, 0x00, 0x00, 0x5b, 0x5d, /* 0xc8 */
0x7b, 0x7d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0 */
0x00, 0x00, 0x00, 0x00, 0x2b, 0x2d, 0x00, 0x00, /* 0xd8 */
0x00, 0x3d, 0x00, 0x3c, 0x3e, 0x00, 0x00, 0x00, /* 0xe0 */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x5c, /* 0xe8 */
0x24, 0x00, 0x00, 0x25, 0x23, 0x26, 0x2a, 0x40, /* 0xf0 */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8 */
};
static const unsigned char euc_a3_to_ascii_table[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa0 */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xa8 */
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0xb0 */
0x38, 0x39, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xb8 */
0x00, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0xc0 */
0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0xc8 */
0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0xd0 */
0x58, 0x59, 0x5a, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd8 */
0x00, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0xe0 */
0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0xe8 */
0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0xf0 */
0x78, 0x79, 0x7a, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xf8 */
};
// Hook functions
EB_Error_Code hook_newline( EB_Book * book, EB_Appendix *, void * ptr,
EB_Hook_Code, int, const unsigned int * )
{
EContainer * container = static_cast< EContainer * >( ptr );
if( container->textOnly )
eb_write_text_byte1( book, '\n' );
else
eb_write_text_string( book, "<br>" );
return EB_SUCCESS;
}
EB_Error_Code hook_iso8859_1( EB_Book * book, EB_Appendix *, void * container,
EB_Hook_Code, int, const unsigned int * argv )
{
EpwingBook * ebook = static_cast< EpwingBook * >( container );
if( ebook->codecISO() )
{
QByteArray b = ebook->codecISO()->toUnicode( (const char *)argv, 1 ).toUtf8();
eb_write_text( book, b.data(), b.size() );
}
return EB_SUCCESS;
}
EB_Error_Code hook_narrow_jisx0208( EB_Book * book, EB_Appendix *,
void * container, EB_Hook_Code, int,
const unsigned int * argv )
{
if( *argv == 0xA1E3 )
eb_write_text_string( book, "&lt;" );
else
if( *argv == 0xA1E4 )
eb_write_text_string( book, "&gt;" );
else
if( *argv == 0xA1F5 )
eb_write_text_string( book, "&amp;" );
else
{
unsigned char buf[ 2 ];
buf[ 0 ] = argv[ 0 ] >> 8;
buf[ 1 ] = argv[ 0 ] & 0xff;
int out_code = 0;
if( buf[ 0 ] == 0xA1 && buf[ 1 ] >= EUC_TO_ASCII_TABLE_START )
out_code = euc_a1_to_ascii_table[ buf[ 1 ] - EUC_TO_ASCII_TABLE_START ];
else
if( buf[ 0 ] == 0xA3 && buf[ 1 ] >= EUC_TO_ASCII_TABLE_START )
out_code = euc_a3_to_ascii_table[ buf[ 1 ] - EUC_TO_ASCII_TABLE_START ];
if( out_code == 0 )
{
EContainer * cont = static_cast< EContainer * >( container );
if( cont->book->codecEuc() )
{
QByteArray str = cont->book->codecEuc()->toUnicode( (const char *)buf, 2 ).toUtf8();
eb_write_text( book, str.data(), str.size() );
}
else
eb_write_text( book, (const char *)buf, 2 );
}
else
eb_write_text_byte1( book, out_code );
}
return EB_SUCCESS;
}
EB_Error_Code hook_wide_jisx0208( EB_Book * book, EB_Appendix *, void * ptr,
EB_Hook_Code, int, const unsigned int * argv )
{
EpwingBook * ebook = static_cast< EContainer * >( ptr )->book;
char buf[2];
buf[1] = *argv & 0xFF;
buf[0] = ( *argv & 0xFF00 ) >> 8;
if( ebook->codecEuc() )
{
QByteArray b = ebook->codecEuc()->toUnicode( buf, 2 ).toUtf8();
eb_write_text( book, b.data(), b.size() );
}
else
eb_write_text_byte2( book, buf[ 0 ], buf[ 1 ] );
return EB_SUCCESS;
}
EB_Error_Code hook_gb2312( EB_Book * book, EB_Appendix *, void * container,
EB_Hook_Code, int, const unsigned int * argv )
{
EpwingBook * ebook = static_cast< EContainer * >( container )->book;
char buf[2];
buf[1] = *argv & 0xFF;
buf[0] = ( *argv & 0xFF00 ) >> 8 ;
if( ebook->codecGB() )
{
QByteArray b = ebook->codecGB()->toUnicode( buf, 2 ).toUtf8();
eb_write_text( book, b.data(), b.size() );
}
else
eb_write_text_byte2( book, buf[ 0 ], buf[ 1 ] );
return EB_SUCCESS;
}
EB_Error_Code hook_subscript( EB_Book * book, EB_Appendix *, void * container,
EB_Hook_Code code, int, const unsigned int * )
{
EContainer * cn = static_cast< EContainer * >( container );
if( cn->textOnly )
return EB_SUCCESS;
if( code == EB_HOOK_BEGIN_SUBSCRIPT )
eb_write_text_string( book, cn->book->beginDecoration( EpwingBook::SUBSCRIPT ) );
if( code == EB_HOOK_END_SUBSCRIPT )
eb_write_text_string( book, cn->book->endDecoration( EpwingBook::SUBSCRIPT ) );
return EB_SUCCESS;
}
EB_Error_Code hook_superscript( EB_Book * book, EB_Appendix *, void * container,
EB_Hook_Code code, int, const unsigned int * )
{
EContainer * cn = static_cast< EContainer * >( container );
if( cn->textOnly )
return EB_SUCCESS;
if( code == EB_HOOK_BEGIN_SUPERSCRIPT )
eb_write_text_string( book, cn->book->beginDecoration( EpwingBook::SUPERSCRIPT ) );
if( code == EB_HOOK_END_SUPERSCRIPT )
eb_write_text_string( book, cn->book->endDecoration( EpwingBook::SUPERSCRIPT ) );
return EB_SUCCESS;
}
EB_Error_Code hook_decoration( EB_Book * book, EB_Appendix *, void * container,
EB_Hook_Code code, int, const unsigned int * argv )
{
EContainer * cn = static_cast< EContainer * >( container );
if( cn->textOnly )
return EB_SUCCESS;
if( code == EB_HOOK_BEGIN_DECORATION )
eb_write_text_string( book, cn->book->beginDecoration( argv[ 1 ] ) );
if( code == EB_HOOK_END_DECORATION )
eb_write_text_string( book, cn->book->endDecoration( argv[ 1 ] ) );
return EB_SUCCESS;
}
EB_Error_Code hook_color_image( EB_Book * book, EB_Appendix *, void * container,
EB_Hook_Code code, int, const unsigned int * argv )
{
EContainer * cn = static_cast< EContainer * >( container );
if( cn->textOnly )
return EB_SUCCESS;
QByteArray str = cn->book->handleColorImage( code, argv );
if( !str.isEmpty() )
eb_write_text( book, str.data(), str.size() );
return EB_SUCCESS;
}
EB_Error_Code hook_mono_image( EB_Book * book, EB_Appendix *, void * container,
EB_Hook_Code code, int, const unsigned int * argv )
{
EContainer * cn = static_cast< EContainer * >( container );
if( cn->textOnly )
return EB_SUCCESS;
QByteArray str = cn->book->handleMonoImage( code, argv );
if( !str.isEmpty() )
eb_write_text( book, str.data(), str.size() );
return EB_SUCCESS;
}
EB_Error_Code hook_wave( EB_Book * book, EB_Appendix *, void * container,
EB_Hook_Code code, int, const unsigned int * argv )
{
EContainer * cn = static_cast< EContainer * >( container );
if( cn->textOnly )
return EB_SUCCESS;
QByteArray str = cn->book->handleWave( code, argv );
if( !str.isEmpty() )
eb_write_text( book, str.data(), str.size() );
return EB_SUCCESS;
}
EB_Error_Code hook_mpeg( EB_Book * book, EB_Appendix *, void * container,
EB_Hook_Code code, int, const unsigned int * argv )
{
EContainer * cn = static_cast< EContainer * >( container );
if( cn->textOnly )
return EB_SUCCESS;
QByteArray str = cn->book->handleMpeg( code, argv );
if( !str.isEmpty() )
eb_write_text( book, str.data(), str.size() );
return EB_SUCCESS;
}
EB_Error_Code hook_narrow_font( EB_Book * book, EB_Appendix *, void * container,
EB_Hook_Code, int, const unsigned int * argv )
{
EContainer * cn = static_cast< EContainer * >( container );
QByteArray str = cn->book->handleNarrowFont( argv, cn->textOnly );
if( !str.isEmpty() )
eb_write_text( book, str.data(), str.size() );
return EB_SUCCESS;
}
EB_Error_Code hook_wide_font( EB_Book * book, EB_Appendix *, void * container,
EB_Hook_Code, int, const unsigned int * argv )
{
EContainer * cn = static_cast< EContainer * >( container );
QByteArray str = cn->book->handleWideFont( argv, cn->textOnly );
if( !str.isEmpty() )
eb_write_text( book, str.data(), str.size() );
return EB_SUCCESS;
}
EB_Error_Code hook_reference( EB_Book * book, EB_Appendix *, void * container,
EB_Hook_Code code, int, const unsigned int * argv )
{
EContainer * cn = static_cast< EContainer * >( container );
if( cn->textOnly )
return EB_SUCCESS;
QByteArray str = cn->book->handleReference( code, argv );
if( !str.isEmpty() )
eb_write_text( book, str.data(), str.size() );
return EB_SUCCESS;
}
// EpwingBook class
EpwingBook::EpwingBook() :
currentSubBook( -1 )
{
codec_ISO = QTextCodec::codecForName( "ISO8859-1" );
codec_GB = QTextCodec::codecForName( "GB2312" );
codec_Euc = QTextCodec::codecForName("EUC-JP");
eb_initialize_book( &book );
eb_initialize_appendix( &appendix );
eb_initialize_hookset( &hookSet );
eb_set_hooks( &hookSet, hooks );
eb_initialize_hookset( &refHookSet );
eb_set_hooks( &refHookSet, refHooks );
}
EpwingBook::~EpwingBook()
{
eb_finalize_hookset( &hookSet );
eb_finalize_appendix( &appendix );
eb_finalize_book( &book );
}
void EpwingBook::setErrorString( QString const & func, EB_Error_Code code )
{
error_string = QString( "EB \"%1\" function error: %2 (%3)" )
.arg( func )
.arg( QTextCodec::codecForLocale()->toUnicode( eb_error_string( code ) ) )
.arg( QTextCodec::codecForLocale()->toUnicode( eb_error_message( code ) ) );
if( currentPosition.page != 0 )
error_string += QString( " on page %1, offset %2" ).arg( QString::number( currentPosition.page ) )
.arg( QString::number( currentPosition.offset ) );
}
void EpwingBook::collectFilenames( QString const & directory, vector< string > & files )
{
QDir dir( directory );
QString catName;
catName += QDir::separator();
catName += "catalogs";
QFileInfoList entries = dir.entryInfoList( QDir::AllDirs | QDir::Files | QDir::NoDotAndDotDot,
QDir::Name | QDir::DirsLast );
for( QFileInfoList::const_iterator i = entries.constBegin();
i != entries.constEnd(); ++i )
{
QString fullName = QDir::toNativeSeparators( i->filePath() );
if( i->isDir() )
collectFilenames( fullName, files );
else
files.push_back( FsEncoding::encode( fullName ) );
}
}
int EpwingBook::setBook( string const & directory )
{
error_string.clear();
if( directory.empty() )
throw exEpwing( "No such directory" );
currentPosition.page = 0;
indexHeadwordsPosition.page = 0;
indexHeadwordsPosition.offset = 0;
currentSubBook = -1;
EB_Error_Code ret = eb_bind( &book, directory.c_str() );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_bind", ret );
throw exEbLibrary( error_string.toUtf8().data() );
return -1;
}
ret = eb_bind_appendix( &appendix, directory.c_str() );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_bind_appendix", ret );
}
ret = eb_subbook_list( &book, subBookList, &subBookCount );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_subbook_list", ret );
throw exEbLibrary( error_string.toUtf8().data() );
}
ret = eb_appendix_subbook_list( &appendix, subAppendixList, &subAppendixCount );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_appendix_subbook_list", ret );
}
if( !codec_Euc
|| ( book.character_code == EB_CHARCODE_ISO8859_1 && !codec_ISO )
|| ( book.character_code == EB_CHARCODE_JISX0208_GB2312 && !codec_GB ) )
throw exEpwing( "No required codec to decode dictionary" );
rootDir = FsEncoding::decode( directory.c_str() );
return subBookCount;
}
bool EpwingBook::setSubBook( int book_nom )
{
error_string.clear();
customFontsMap.clear();
currentPosition.page = 0;
if( book_nom < 0 || book_nom >= subBookCount )
throw exEpwing( "Invalid subbook number" );
if( currentSubBook == book_nom )
return true;
EB_Error_Code ret = eb_set_subbook( &book, subBookList[ book_nom ] );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_set_subbook", ret );
throw exEbLibrary( error_string.toUtf8().data() );
}
currentSubBook = book_nom;
if( book_nom < subAppendixCount )
{
ret = eb_set_appendix_subbook( &appendix, subAppendixList[ book_nom ] );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_set_appendix_subbook", ret );
}
}
if( eb_have_font( &book, EB_FONT_16 ) )
{
ret = eb_set_font( &book, EB_FONT_16 );
if( ret != EB_SUCCESS )
setErrorString( "eb_set_font", ret );
}
// Load fonts list
QString fileName = rootDir + QDir::separator()
+ "afonts_" + QString::number( book_nom );
QFile f( fileName );
if( f.open( QFile::ReadOnly | QFile::Text ) )
{
QTextStream ts( &f );
#if (QT_VERSION < QT_VERSION_CHECK(6,0,0))
ts.setCodec( "UTF-8" );
#else
ts.setEncoding(QStringConverter::Utf8);
#endif
QString line = ts.readLine();
while( !line.isEmpty() )
{
QStringList list = line.remove( '\n' ).split( ' ', Qt::SkipEmptyParts );
if( list.count() == 2 )
customFontsMap[ list[ 0 ] ] = list[ 1 ];
line = ts.readLine();
}
f.close();
}
return true;
}
void EpwingBook::setCacheDirectory( QString const & cacheDir )
{
mainCacheDir = cacheDir;
cacheImagesDir.clear();
cacheSoundsDir.clear();
cacheMoviesDir.clear();
cacheFontsDir.clear();
imageCacheList.clear();
soundsCacheList.clear();
moviesCacheList.clear();
fontsCacheList.clear();
}
QString EpwingBook::createCacheDir( QString const & dirName )
{
QDir dir;
QFileInfo info( mainCacheDir );
if( !info.exists() || !info.isDir() )
{
if( !dir.mkdir( mainCacheDir ) )
{
gdWarning( "Epwing: can't create cache directory \"%s\"", mainCacheDir.toUtf8().data() );
return QString();
}
}
QString cacheDir = mainCacheDir + QDir::separator() + dirName;
info = QFileInfo( cacheDir );
if( !info.exists() || !info.isDir() )
{
if( !dir.mkdir( cacheDir ) )
{
gdWarning( "Epwing: can't create cache directory \"%s\"", cacheDir.toUtf8().data() );
return QString();
}
}
return cacheDir;
}
QString EpwingBook::getCurrentSubBookDirectory()
{
error_string.clear();
if( currentSubBook < 0 || currentSubBook >= subBookCount )
{
setErrorString( "eb_subbook_directory2", EB_ERR_NO_SUCH_BOOK );
throw exEbLibrary( error_string.toUtf8().data() );
}
char buffer[ EB_MAX_PATH_LENGTH + 1 ];
EB_Error_Code ret = eb_subbook_directory2( &book, subBookList[ currentSubBook ], buffer );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_subbook_directory2", ret );
throw exEbLibrary( error_string.toUtf8().data() );
}
return QString::fromLocal8Bit( buffer );
}
QString EpwingBook::makeFName( QString const & ext, int page, int offset ) const
{
QString name = QString::number( page )
+ "x"
+ QString::number( offset )
+ "."
+ ext;
return name;
}
QString EpwingBook::title()
{
char buf[ EB_MAX_TITLE_LENGTH + 1 ];
error_string.clear();
EB_Error_Code ret = eb_subbook_title( &book, buf );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_subbook_title", ret );
throw exEbLibrary( error_string.toUtf8().data() );
}
buf[ EB_MAX_TITLE_LENGTH ] = 0;
if( codec_Euc )
return codec_Euc->toUnicode( buf );
return QString();
}
QString EpwingBook::copyright()
{
error_string.clear();
if( !eb_have_copyright( &book ) )
return QString();
EB_Position position;
EB_Error_Code ret = eb_copyright( &book, &position );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_copyright", ret );
throw exEbLibrary( error_string.toUtf8().data() );
}
currentPosition = position;
return getText( position.page, position.offset, true );
}
QString EpwingBook::getText( int page, int offset, bool text_only )
{
error_string.clear();
seekBookThrow( page, offset );
QByteArray buf;
char buffer[ TextBufferSize + 1 ];
ssize_t buffer_length;
EContainer container( this, text_only );
prepareToRead();
for( ; ; )
{
EB_Error_Code ret = eb_read_text( &book, &appendix, &hookSet, &container,
TextBufferSize, buffer, &buffer_length );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_read_text", ret );
break;
}
buf += QByteArray( buffer, buffer_length );
if( eb_is_text_stopped( &book ) )
break;
if( buf.length() > TextSizeLimit )
{
error_string = "Data too large";
currentPosition.page = 0;
return QString();
}
}
QString text = QString::fromUtf8( buf.data(), buf.size() ).trimmed();
finalizeText( text);
return text;
}
void EpwingBook::seekBookThrow( int page, int offset )
{
EB_Position pos;
pos.page = page;
pos.offset = offset;
currentPosition = pos;
EB_Error_Code ret = eb_seek_text( &book, &pos );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_seek_text", ret );
currentPosition.page = 0;
throw exEbLibrary( error_string.toUtf8().data() );
}
}
QString EpwingBook::getTextWithLength( int page, int offset, int total, EB_Position & pos )
{
error_string.clear();
int currentLength = 0;
seekBookThrow( page, offset );
QByteArray buf;
char buffer[ TextBufferSize + 1 ];
ssize_t buffer_length;
EContainer container( this, false );
prepareToRead();
for( ;; )
{
EB_Error_Code ret = eb_read_text( &book, &appendix, &hookSet, &container, TextBufferSize, buffer, &buffer_length );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_read_text", ret );
break;
}
buf += QByteArray( buffer, buffer_length );
currentLength += buffer_length;
if( currentLength > total || buffer_length == 0 )
break;
if( buf.length() > TextSizeLimit )
{
error_string = "Data too large";
currentPosition.page = 0;
return QString();
}
ret = eb_forward_text( &book, &appendix );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_seek_text", ret );
currentPosition.page = 0;
throw exEbLibrary( error_string.toUtf8().data() );
}
}
eb_tell_text( &book, &pos );
QString text = QString::fromUtf8( buf.data(), buf.size() ).trimmed();
finalizeText( text );
return text;
}
QString EpwingBook::getPreviousTextWithLength( int page, int offset, int total, EB_Position & pos )
{
error_string.clear();
int currentLength = 0;
QByteArray buf;
char buffer[ TextBufferSize + 1 ];
ssize_t buffer_length;
EContainer container( this, false );
prepareToRead();
for( ;; )
{
seekBookThrow( page, offset );
EB_Error_Code ret = eb_backward_text( &book, &appendix );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_backward_text", ret );
currentPosition.page = 0;
throw exEbLibrary( error_string.toUtf8().data() );
}
eb_tell_text( &book, &pos );
page = pos.page;
offset = pos.offset;
ret = eb_read_text( &book, &appendix, &hookSet, &container, TextBufferSize, buffer, &buffer_length );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_read_text", ret );
break;
}
buf.prepend( QByteArray( buffer, buffer_length ));
currentLength += buffer_length;
if( currentLength > total || buffer_length == 0 )
break;
if( buf.length() > TextSizeLimit )
{
error_string = "Data too large";
currentPosition.page = 0;
return QString();
}
}
QString text = QString::fromUtf8( buf.data(), buf.size() ).trimmed();
finalizeText( text );
return text;
}
void EpwingBook::getReferencesFromText( int page, int offset )
{
error_string.clear();
EB_Position pos;
pos.page = page;
pos.offset = offset;
currentPosition = pos;
EB_Error_Code ret = eb_seek_text(&book, &pos);
if( ret != EB_SUCCESS )
{
setErrorString( "eb_seek_text", ret );
throw exEbLibrary( error_string.toUtf8().data() );
}
char buffer[ TextBufferSize + 1 ];
ssize_t buffer_length;
EContainer container( this, false );
prepareToRead();
for( ; ; )
{
ret = eb_read_text( &book, &appendix, &refHookSet, &container,
TextBufferSize, buffer, &buffer_length );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_read_text", ret );
break;
}
if( eb_is_text_stopped( &book ) )
break;
}
for( int x = 0; x < refPages.size(); x++ )
{
LinksQueue.push_back( EWPos( refPages[ x ], refOffsets[ x ] ) );
}
}
EB_Error_Code EpwingBook::forwardText( EB_Position & startPos )
{
EB_Error_Code ret = eb_seek_text( &book, &startPos );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_seek_text", ret );
throw exEbLibrary( error_string.toUtf8().data() );
}
ret = eb_forward_text( &book, &appendix );
while( ret == EB_ERR_END_OF_CONTENT )
{
ret = eb_tell_text( &book, &startPos );
if( ret != EB_SUCCESS )
break;
if( startPos.page >= book.subbook_current->text.end_page )
return EB_ERR_END_OF_CONTENT;
startPos.offset += 2;
currentPosition = startPos;
ret = eb_seek_text( &book, &startPos );
if( ret == EB_SUCCESS )
ret = eb_forward_text( &book, &appendix );
}
return ret;
}
void EpwingBook::getFirstHeadword( EpwingHeadword & head )
{
error_string.clear();
EB_Position pos;
EB_Error_Code ret = eb_text( &book, &pos );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_text", ret );
throw exEbLibrary( error_string.toUtf8().data() );
}
ret = forwardText( pos );
if( ret != EB_SUCCESS )
{
setErrorString( "forwardText", ret );
throw exEbLibrary( error_string.toUtf8().data() );
}
eb_backward_text( &book, &appendix );
ret = eb_tell_text( &book, &pos );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_tell_text", ret );
throw exEbLibrary( error_string.toUtf8().data() );
}
currentPosition = pos;
indexHeadwordsPosition = pos;
head.page = pos.page;
head.offset = pos.offset;
if( !readHeadword( pos, head.headword, true ) )
throw exEbLibrary( error_string.toUtf8().data() );
fixHeadword( head.headword );
EWPos epos( pos.page, pos.offset );
allHeadwordPositions[ ((uint64_t)pos.page)<<32|(pos.offset) ] =true;
}
bool EpwingBook::getNextHeadword( EpwingHeadword & head )
{
EB_Position pos;
// No queued positions - forward to next article
error_string.clear();
pos = indexHeadwordsPosition;
for( ; ; )
{
EB_Error_Code ret = forwardText( pos );
indexHeadwordsPosition = pos;
if( ret == EB_ERR_END_OF_CONTENT )
return false;
else
if( ret != EB_SUCCESS )
{
setErrorString( "eb_forward_text", ret );
throw exEbLibrary( error_string.toUtf8().data() );
}
ret = eb_tell_text( &book, &pos );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_tell_text", ret );
throw exEbLibrary( error_string.toUtf8().data() );
}
indexHeadwordsPosition = pos;
head.page = pos.page;
head.offset = pos.offset;
if( !readHeadword( pos, head.headword, true ) )
throw exEbLibrary( error_string.toUtf8().data() );
if( head.headword.isEmpty() )
continue;
fixHeadword( head.headword );
try
{
getReferencesFromText( pos.page, pos.offset);
}
catch( std::exception & )
{
}
if( !allHeadwordPositions.contains( ((uint64_t)pos.page) << 32 | ( pos.offset ) ) )
{
allHeadwordPositions[ ((uint64_t)pos.page) << 32 | ( pos.offset ) ] = true;
return true;
}
}
return true;
}
bool EpwingBook::readHeadword( EB_Position const& pos,
QString & headword,
bool text_only )
{
EContainer container( this, text_only );
ssize_t head_length;
EB_Position newPos = pos;
EB_Error_Code ret = eb_seek_text( &book, &newPos );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_seek_text", ret );
return false;
}
char buffer[ TextBufferSize + 1 ];
ret = eb_read_heading( &book, &appendix, &hookSet, &container,
TextBufferSize, buffer, &head_length );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_read_heading", ret );
return false;
}
headword = QString::fromUtf8( buffer, head_length );
return true;
}
bool EpwingBook::isHeadwordCorrect( QString const & headword )
{
QByteArray buf, buf2;
EB_Hit hits[ 2 ];
int hit_count;
EB_Error_Code ret;
if( headword.isEmpty() )
return false;
if( book.character_code == EB_CHARCODE_ISO8859_1 && codec_ISO )
buf = codec_ISO->fromUnicode( headword );
else
if( ( book.character_code == EB_CHARCODE_JISX0208 || book.character_code == EB_CHARCODE_JISX0208_GB2312 )
&& codec_Euc )
buf = codec_Euc->fromUnicode( headword );
if( book.character_code == EB_CHARCODE_JISX0208_GB2312 && codec_GB )
buf2 = codec_GB->fromUnicode( headword );
if( !buf.isEmpty() && eb_search_exactword( &book, buf.data() ) == EB_SUCCESS )
{
ret = eb_hit_list( &book, 2, hits, &hit_count );
if( ret == EB_SUCCESS && hit_count > 0 )
return true;
}
if( !buf2.isEmpty() && eb_search_exactword( &book, buf2.data() ) == EB_SUCCESS )
{
ret = eb_hit_list( &book, 2, hits, &hit_count );
if( ret == EB_SUCCESS && hit_count > 0 )
return true;
}
return false;
}
void EpwingBook::fixHeadword( QString & headword )
{
if(headword.isEmpty() )
return;
headword.remove( QChar( 0x30FB ) ); // Used in Japan transcription
//replace any unicode Number ,Symbol ,Punctuation ,Mark character to whitespace
headword.replace( QRegularExpression( R"([\p{N}\p{S}\p{P}\p{M}])" ), " " );
//if( isHeadwordCorrect( headword) )
// return;
QString fixed = headword;
QRegularExpression leadingSlashRx( "/[^/]+/" );
fixed.remove(leadingSlashRx );
//if( isHeadwordCorrect( fixed ) )
//{
// headword = fixed;
// return;
//}
gd::wstring folded = Folding::applyPunctOnly( gd::toWString( fixed ) );
//fixed = gd::toQString( folded );
//if( isHeadwordCorrect( fixed ) )
//{
// headword = fixed;
// return;
//}
folded = Folding::applyDiacriticsOnly( folded );
fixed = gd::toQString( folded );
//if( isHeadwordCorrect( fixed ) )
//{
// headword = fixed;
// return;
//}
//folded = Folding::applyWhitespaceOnly( folded );
//fixed = gd::toQString( folded );
//if( isHeadwordCorrect( fixed ) )
// headword = fixed;
//remove leading number and space.
QRegularExpression leadingNumAndSpace( R"(^[\d\s]+\b)" );
fixed.remove( leadingNumAndSpace );
auto parts = fixed.split( ' ', Qt::SkipEmptyParts );
if( parts.size() > 2 ) {
//only return the first parts to avoid duplication
headword = QString( "%1 %2" ).arg( parts[ 0 ], parts[ 1 ] );
return;
}
headword = fixed;
}
void EpwingBook::getArticle( QString & headword, QString & articleText,
int page, int offset, bool text_only)
{
error_string.clear();
seekBookThrow( page, offset );
readHeadword( headword, text_only );
QString hw = Html::unescape( headword, true );
fixHeadword( hw );
auto parts = hw.split( QChar::Space, Qt::SkipEmptyParts );
articleText = getText( page, offset, text_only );
}
void EpwingBook::readHeadword(QString & headword, bool text_only)
{
EContainer container( this, text_only );
ssize_t length;
prepareToRead();
char buffer[ TextBufferSize + 1 ];
EB_Error_Code ret = eb_read_heading( &book, &appendix, &hookSet, &container,
TextBufferSize, buffer, &length );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_read_heading", ret );
throw exEbLibrary( error_string.toUtf8().data() );
}
headword = QString::fromUtf8( buffer, length );
finalizeText( headword);
if( text_only )
fixHeadword( headword );
}
EB_Position EpwingBook::getArticleNextPage(
QString & headword, QString & articleText,
int page, int offset, bool text_only)
{
error_string.clear();
seekBookThrow( page, offset );
readHeadword( headword, text_only );
EB_Position pos;
articleText = getTextWithLength( page, offset, 4000, pos);
return pos;
}
EB_Position EpwingBook::getArticlePreviousPage(
QString & headword, QString & articleText, int page, int offset, bool text_only )
{
error_string.clear();
seekBookThrow( page, offset );
readHeadword( headword, text_only );
EB_Position pos;
articleText = getPreviousTextWithLength( page, offset, 4000, pos );
return pos;
}
const char * EpwingBook::beginDecoration( unsigned int code )
{
const char * str = "";
code = normalizeDecorationCode( code );
switch( code )
{
case ITALIC: str = "<i>";
break;
case BOLD: str = "<b>";
break;
case EMPHASIS: str = "<em>";
break;
case SUBSCRIPT: str = "<sub>";
break;
case SUPERSCRIPT: str = "<sup>";
break;
default: gdWarning( "Epwing: Unknown decoration code %i", code );
code = UNKNOWN;
break;
}
decorationStack.push( code );
return str;
}
const char * EpwingBook::endDecoration( unsigned int code )
{
const char * str = "";
code = normalizeDecorationCode( code );
if( code != ITALIC && code != BOLD && code != EMPHASIS
&& code != SUBSCRIPT && code != SUPERSCRIPT )
code = UNKNOWN;
unsigned int storedCode = UNKNOWN;
if( !decorationStack.isEmpty() )
storedCode = decorationStack.pop();
if( storedCode != code )
{
gdWarning( "Epwing: tags mismatch detected" );
if( storedCode == UNKNOWN )
storedCode = code;
}
switch( storedCode )
{
case ITALIC: str = "</i>";
break;
case BOLD: str = "</b>";
break;
case EMPHASIS: str = "</em>";
break;
case SUBSCRIPT: str = "</sub>";
break;
case SUPERSCRIPT: str = "</sup>";
break;
case UNKNOWN: break;
}
return str;
}
unsigned int EpwingBook::normalizeDecorationCode( unsigned int code )
{
// Some non-standard codes
switch( code )
{
case 0x1101: return BOLD;
case 0x1103: return ITALIC;
}
return code;
}
void EpwingBook::finalizeText( QString & text )
{
// Close unclosed tags
while( !decorationStack.isEmpty() )
{
unsigned int code = decorationStack.pop();
switch( code )
{
case ITALIC: text += "</i>";
break;
case BOLD: text += "</b>";
break;
case EMPHASIS: text += "</em>";
break;
case SUBSCRIPT: text += "</sub>";
break;
case SUPERSCRIPT: text += "</sup>";
break;
}
}
// Replace references
int pos = 0;
QString reg1( "<R%1>");
QString reg2( "</R%1>");
for( int x = 0; x < refCloseCount; x++ )
{
auto tag1=reg1.arg(x);
auto tag2=reg2.arg(x);
pos = text.indexOf( tag1 );
if( pos < 0 )
continue;
EB_Position ebpos;
ebpos.page = refPages[ x ];
ebpos.offset = refOffsets[ x ];
QUrl url;
url.setScheme( "gdlookup" );
url.setHost( "localhost" );
url.setPath( Utils::Url::ensureLeadingSlash( QString( "r%1At%2" ).arg( ebpos.page ).arg(ebpos.offset) ) );
QString link = "<a href=\"" + url.toEncoded() + "\">";
text.replace( tag1, link );
pos = text.indexOf( tag2 );
if( pos < 0 )
continue;
text.replace( tag2, "</a>" );
}
}
void EpwingBook::prepareToRead()
{
refPages.clear();
refOffsets.clear();
refOpenCount = refCloseCount = 0;
}
QByteArray EpwingBook::handleColorImage( EB_Hook_Code code,
const unsigned int * argv )
{
QString name, fullName;
EB_Position pos;
if( code == EB_HOOK_END_COLOR_GRAPHIC
|| code == EB_HOOK_END_IN_COLOR_GRAPHIC )
return QByteArray();
pos.page = argv[ 2 ];
pos.offset = argv[ 3 ];
EB_Error_Code ret = eb_set_binary_color_graphic( &book, & pos );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_set_binary_color_graphic", ret );
gdWarning( "Epwing image retrieve error: %s",
error_string.toUtf8().data() );
return QByteArray();
}
if( cacheImagesDir.isEmpty() )
cacheImagesDir = createCacheDir( "images" );
if( code == EB_HOOK_BEGIN_COLOR_BMP
|| code == EB_HOOK_BEGIN_IN_COLOR_BMP )
name = makeFName( "bmp", pos.page, pos.offset );
else
if( code == EB_HOOK_BEGIN_COLOR_JPEG
|| code == EB_HOOK_BEGIN_IN_COLOR_JPEG )
name = makeFName( "jpg", pos.page, pos.offset );
if( !cacheImagesDir.isEmpty() )
fullName = cacheImagesDir + QDir::separator() + name;
QUrl url;
url.setScheme( "bres" );
url.setHost( dictID );
url.setPath( Utils::Url::ensureLeadingSlash( name ) );
QByteArray urlStr = R"(<p class="epwing_image"><img src=")" + url.toEncoded()
+ "\" alt=\"" + name.toUtf8() + "\"></p>";
if( imageCacheList.contains( name, Qt::CaseSensitive ) )
{
// We already have this image in cache
return urlStr;
}
if( !fullName.isEmpty() )
{
QFile f( fullName );
if( f.open( QFile::WriteOnly ) )
{
QByteArray buffer;
buffer.resize( BinaryBufferSize );
ssize_t length;
for( ; ; )
{
ret = eb_read_binary( &book, BinaryBufferSize,
buffer.data(), &length );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_read_binary", ret );
gdWarning( "Epwing image retrieve error: %s",
error_string.toUtf8().data() );
break;
}
f.write( buffer.data(), length );
if( length < BinaryBufferSize )
break;
}
f.close();
imageCacheList.append( name );
}
}
return urlStr;
}
QByteArray EpwingBook::handleMonoImage( EB_Hook_Code code,
const unsigned int * argv )
{
QString name, fullName;
EB_Position pos;
if( code == EB_HOOK_BEGIN_MONO_GRAPHIC )
{
monoHeight = argv[ 2 ];
monoWidth = argv[ 3 ];
return QByteArray();
}
// Handle EB_HOOK_END_MONO_GRAPHIC hook
pos.page = argv[ 1 ];
pos.offset = argv[ 2 ];
EB_Error_Code ret = eb_set_binary_mono_graphic( &book, &pos, monoWidth, monoHeight );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_set_binary_mono_graphic", ret );
gdWarning( "Epwing image retrieve error: %s",
error_string.toUtf8().data() );
return QByteArray();
}
if( cacheImagesDir.isEmpty() )
cacheImagesDir = createCacheDir( "images" );
name = makeFName( "bmp", pos.page, pos.offset );
if( !cacheImagesDir.isEmpty() )
fullName = cacheImagesDir + QDir::separator() + name;
QUrl url;
url.setScheme( "bres" );
url.setHost( dictID );
url.setPath( Utils::Url::ensureLeadingSlash( name ) );
QByteArray urlStr = R"(<span class="epwing_image"><img src=")" + url.toEncoded()
+ "\" alt=\"" + name.toUtf8() + "\"/></span>";
if( imageCacheList.contains( name, Qt::CaseSensitive ) )
{
// We already have this image in cache
return urlStr;
}
if( !fullName.isEmpty() )
{
QFile f( fullName );
if( f.open( QFile::WriteOnly | QFile::Truncate ) )
{
QByteArray buffer;
buffer.resize( BinaryBufferSize );
ssize_t length;
for( ; ; )
{
ret = eb_read_binary( &book, BinaryBufferSize,
buffer.data(), &length );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_read_binary", ret );
gdWarning( "Epwing image retrieve error: %s",
error_string.toUtf8().data() );
break;
}
f.write( buffer.data(), length );
if( length < BinaryBufferSize )
break;
}
f.close();
imageCacheList.append( name );
}
}
return urlStr;
}
QByteArray EpwingBook::handleWave( EB_Hook_Code code, const unsigned int * argv )
{
if( code == EB_HOOK_END_WAVE )
return QByteArray( R"(<img src="qrc:///icons/playsound.png" border="0" align="absmiddle" alt="Play"/></a></span>)" );
// Handle EB_HOOK_BEGIN_WAVE
EB_Position spos, epos;
spos.page = argv[ 2 ];
spos.offset = argv[ 3 ];
epos.page = argv[ 4 ];
epos.offset = argv[ 5 ];
eb_set_binary_wave( &book, &spos, &epos );
if( cacheSoundsDir.isEmpty() )
cacheSoundsDir = createCacheDir( "sounds" );
QString name = makeFName( "wav", spos.page, spos.offset );
QString fullName;
if( !cacheSoundsDir.isEmpty() )
fullName = cacheSoundsDir + QDir::separator() + name;
QUrl url;
url.setScheme( "gdau" );
url.setHost( dictID );
url.setPath( Utils::Url::ensureLeadingSlash( name ) );
string ref = string( "\"" )+ url.toEncoded().data() + "\"";
QByteArray result = addAudioLink( ref , dictID.toUtf8().data() ).c_str();
result += QByteArray( "<span class=\"epwing_wav\"><a href=" ) + ref.c_str() + ">";
if( soundsCacheList.contains( name, Qt::CaseSensitive ) )
{
// We already have this sound in cache
return result;
}
if( !fullName.isEmpty() )
{
QFile f( fullName );
if( f.open( QFile::WriteOnly | QFile::Truncate ) )
{
QByteArray buffer;
buffer.resize( BinaryBufferSize );
ssize_t length;
for( ; ; )
{
EB_Error_Code ret = eb_read_binary( &book, BinaryBufferSize,
buffer.data(), &length );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_read_binary", ret );
gdWarning( "Epwing sound retrieve error: %s",
error_string.toUtf8().data() );
break;
}
f.write( buffer.data(), length );
if( length < BinaryBufferSize )
break;
}
f.close();
soundsCacheList.append( name );
}
}
return result;
}
QByteArray EpwingBook::handleMpeg( EB_Hook_Code code, const unsigned int * argv )
{
if( code == EB_HOOK_END_MPEG )
return QByteArray( "</a></span>" );
// Handle EB_HOOK_BEGIN_MPEG
char file[ EB_MAX_PATH_LENGTH + 1 ];
unsigned int *p = (unsigned int *)( argv + 2 );
eb_compose_movie_path_name( &book, p, file );
QString name = QString::fromLocal8Bit( file );
name = QFileInfo( name ).fileName();
name += ".mpg";
eb_set_binary_mpeg( &book, argv + 2 );
if( cacheMoviesDir.isEmpty() )
cacheMoviesDir = createCacheDir( "movies" );
QString fullName;
if( !cacheMoviesDir.isEmpty() )
fullName = cacheMoviesDir + QDir::separator() + name;
QUrl url;
url.setScheme( "gdvideo" );
url.setHost( dictID );
url.setPath( Utils::Url::ensureLeadingSlash( name ) );
QByteArray result = QByteArray( "<span class=\"epwing_mpeg\"><a href=" ) + url.toEncoded() + ">";
if( moviesCacheList.contains( name, Qt::CaseSensitive ) )
{
// We already have this movie in cache
return result;
}
if( !fullName.isEmpty() )
{
QFile f( fullName );
if( f.open( QFile::WriteOnly | QFile::Truncate ) )
{
QByteArray buffer;
buffer.resize( BinaryBufferSize );
ssize_t length;
for( ; ; )
{
EB_Error_Code ret = eb_read_binary( &book, BinaryBufferSize,
buffer.data(), &length );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_read_binary", ret );
gdWarning( "Epwing movie retrieve error: %s",
error_string.toUtf8().data() );
break;
}
f.write( buffer.data(), length );
if( length < BinaryBufferSize )
break;
}
f.close();
moviesCacheList.append( name );
}
}
return result;
}
QByteArray EpwingBook::codeToUnicode( QString const & code )
{
QString subst;
if( !customFontsMap.isEmpty() && customFontsMap.contains( code ) )
{
subst = QTextDocumentFragment::fromHtml( customFontsMap[ code ] )
.toPlainText();
return subst.toUtf8();
}
return EpwingCharmap::instance().mapToUtf8( code );
}
QByteArray EpwingBook::handleNarrowFont( const unsigned int * argv,
bool text_only )
{
QString fcode = "n" + QString::number( *argv, 16 );
// Check substitution list
QByteArray b = codeToUnicode( fcode );
if( !b.isEmpty() || text_only )
return b;
// Find font image in book
if( !eb_have_narrow_font( &book ) )
return QByteArray( "?" );
QString fname = fcode + ".png";
if( cacheFontsDir.isEmpty() )
cacheFontsDir = createCacheDir( "fonts" );
QString fullName = cacheFontsDir + QDir::separator() + fname;
QUrl url;
url.setScheme( "file" );
url.setHost( "/");
url.setPath( Utils::Url::ensureLeadingSlash( QDir::fromNativeSeparators( fullName ) ) );
QByteArray link = R"(<img class="epwing_narrow_font" src=")" + url.toEncoded() + "\"/>";
if( fontsCacheList.contains( fname, Qt::CaseSensitive ) )
{
// We already have this image in cache
return link;
}
if( !cacheFontsDir.isEmpty() )
{
char bitmap[EB_SIZE_NARROW_FONT_16];
EB_Error_Code ret = eb_narrow_font_character_bitmap( &book, *argv, bitmap );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_narrow_font_character_bitmap", ret );
gdWarning( "Epwing: Font retrieve error: %s", error_string.toUtf8().data() );
return QByteArray( "?" );
}
size_t nlen;
char buff[EB_SIZE_NARROW_FONT_16_PNG];
ret = eb_bitmap_to_png( bitmap, 8, 16, buff, &nlen );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_bitmap_to_png", ret );
gdWarning( "Epwing: Font retrieve error: %s", error_string.toUtf8().data() );
return QByteArray( "?" );
}
QFile f( fullName );
if( f.open( QFile::WriteOnly | QFile::Truncate ) )
{
f.write( buff, nlen );
f.close();
fontsCacheList.append( fname );
}
}
return link;
}
QByteArray EpwingBook::handleWideFont( const unsigned int * argv,
bool text_only )
{
QString fcode = "w" + QString::number( *argv, 16 );
// Check substitution list
QByteArray b = codeToUnicode( fcode );
if( !b.isEmpty() || text_only )
return b;
// Find font image in book
if( !eb_have_wide_font( &book ) )
return QByteArray( "?" );
QString fname = fcode + ".png";
if( cacheFontsDir.isEmpty() )
cacheFontsDir = createCacheDir( "fonts" );
QString fullName = cacheFontsDir + QDir::separator() + fname;
QUrl url;
url.setScheme( "file" );
url.setHost( "/");
url.setPath( Utils::Url::ensureLeadingSlash( QDir::fromNativeSeparators( fullName ) ) );
QByteArray link = R"(<img class="epwing_wide_font" src=")" + url.toEncoded() + "\"/>";
if( fontsCacheList.contains( fname, Qt::CaseSensitive ) )
{
// We already have this image in cache
return link;
}
if( !cacheFontsDir.isEmpty() )
{
char bitmap[EB_SIZE_WIDE_FONT_16];
EB_Error_Code ret = eb_wide_font_character_bitmap( &book, *argv, bitmap );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_wide_font_character_bitmap", ret );
gdWarning( "Epwing: Font retrieve error: %s", error_string.toUtf8().data() );
return QByteArray( "?" );
}
size_t wlen;
char buff[EB_SIZE_WIDE_FONT_16_PNG];
ret = eb_bitmap_to_png( bitmap, 16, 16, buff, &wlen );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_bitmap_to_png", ret );
gdWarning( "Epwing: Font retrieve error: %s", error_string.toUtf8().data() );
return QByteArray( "?" );
}
QFile f( fullName );
if( f.open( QFile::WriteOnly | QFile::Truncate ) )
{
f.write( buff, wlen );
f.close();
fontsCacheList.append( fname );
}
}
return link;
}
QByteArray EpwingBook::handleReference( EB_Hook_Code code, const unsigned int * argv )
{
if( code == EB_HOOK_BEGIN_REFERENCE )
{
if( refOpenCount > refCloseCount )
return QByteArray();
QString str=QString( "<R%1>").arg( refOpenCount );
refOpenCount += 1;
return str.toUtf8();
}
// EB_HOOK_END_REFERENCE
if( refCloseCount >= refOpenCount )
return QByteArray();
refPages.append( argv[ 1 ] );
refOffsets.append( argv[ 2 ] );
QString str = QString( "</R%1>" ).arg( refCloseCount );
refCloseCount += 1;
return str.toUtf8();
}
bool EpwingBook::getMatches( QString word, QVector< QString > & matches )
{
QByteArray bword, bword2;
EB_Hit hits[ HitsBufferSize ];
int hitCount = 0;
if( book.character_code == EB_CHARCODE_ISO8859_1 && codec_ISO )
bword = codec_ISO->fromUnicode( word );
else
if( ( book.character_code == EB_CHARCODE_JISX0208 || book.character_code == EB_CHARCODE_JISX0208_GB2312 )
&& codec_Euc )
bword = codec_Euc->fromUnicode( word );
if( book.character_code == EB_CHARCODE_JISX0208_GB2312 && codec_GB )
bword2 = codec_GB->fromUnicode( word );
if( !bword.isEmpty() )
{
EB_Error_Code ret = eb_search_word( &book, bword.data() );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_search_word", ret );
gdWarning( "Epwing word search error: %s",
error_string.toUtf8().data() );
return false;
}
ret = eb_hit_list( &book, 10, hits, &hitCount );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_hit_list", ret );
gdWarning( "Epwing word search error: %s",
error_string.toUtf8().data() );
return false;
}
}
if( hitCount == 0 && !bword2.isEmpty() )
{
EB_Error_Code ret = eb_search_word( &book, bword2.data() );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_search_word", ret );
gdWarning( "Epwing word search error: %s",
error_string.toUtf8().data() );
return false;
}
ret = eb_hit_list( &book, 10, hits, &hitCount );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_hit_list", ret );
gdWarning( "Epwing word search error: %s",
error_string.toUtf8().data() );
return false;
}
}
QVector< int > pages, offsets;
for( int i = 0; i < hitCount; i++ )
{
bool same_article = false;
for( int n = 0; n < pages.size(); n++ )
{
if( pages.at( n ) == hits[ i ].text.page
&& offsets.at( n ) == hits[ i ].text.offset )
{
same_article = true;
continue;
}
}
if( !same_article )
{
pages.push_back( hits[ i ].text.page );
offsets.push_back( hits[ i ].text.offset );
QString headword;
if( readHeadword( hits[ i ].heading, headword, true ) )
{
if( isHeadwordCorrect( headword ) )
matches.push_back( headword );
}
}
}
return true;
}
bool EpwingBook::getArticlePos( QString word, QVector< int > & pages, QVector< int > & offsets )
{
QByteArray bword, bword2;
EB_Hit hits[ HitsBufferSize ];
int hitCount = 0;
if( book.character_code == EB_CHARCODE_ISO8859_1 && codec_ISO )
bword = codec_ISO->fromUnicode( word );
else
if( ( book.character_code == EB_CHARCODE_JISX0208 || book.character_code == EB_CHARCODE_JISX0208_GB2312 )
&& codec_Euc )
bword = codec_Euc->fromUnicode( word );
if( book.character_code == EB_CHARCODE_JISX0208_GB2312 && codec_GB )
bword2 = codec_GB->fromUnicode( word );
if( !bword.isEmpty() )
{
EB_Error_Code ret = eb_search_exactword( &book, bword.data() );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_search_word", ret );
gdWarning( "Epwing word search error: %s",
error_string.toUtf8().data() );
return false;
}
ret = eb_hit_list( &book, HitsBufferSize, hits, &hitCount );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_hit_list", ret );
gdWarning( "Epwing word search error: %s",
error_string.toUtf8().data() );
return false;
}
}
if( hitCount == 0 && !bword2.isEmpty() )
{
EB_Error_Code ret = eb_search_exactword( &book, bword2.data() );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_search_word", ret );
gdWarning( "Epwing word search error: %s",
error_string.toUtf8().data() );
return false;
}
ret = eb_hit_list( &book, HitsBufferSize, hits, &hitCount );
if( ret != EB_SUCCESS )
{
setErrorString( "eb_hit_list", ret );
gdWarning( "Epwing word search error: %s",
error_string.toUtf8().data() );
return false;
}
}
for( int i = 0; i < hitCount; i++ )
{
bool same_article = false;
for( int n = 0; n < pages.size(); n++ )
{
if( pages.at( n ) == hits[ i ].text.page
&& offsets.at( n ) == hits[ i ].text.offset )
{
same_article = true;
continue;
}
}
if( !same_article )
{
pages.push_back( hits[ i ].text.page );
offsets.push_back( hits[ i ].text.offset );
}
}
return !pages.empty();
}
Mutex EpwingBook::libMutex;
} // namespace Book
} // namespace Epwing
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