lib

symboltable.h

00001 /* This file is part of the KDE project
00002    Copyright (C) 2001 Andrea Rizzi <rizzi@kde.org>
00003                   Ulrich Kuettler <ulrich.kuettler@mailbox.tu-dresden.de>
00004 
00005    This library is free software; you can redistribute it and/or
00006    modify it under the terms of the GNU Library General Public
00007    License as published by the Free Software Foundation; either
00008    version 2 of the License, or (at your option) any later version.
00009 
00010    This library is distributed in the hope that it will be useful,
00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013    Library General Public License for more details.
00014 
00015    You should have received a copy of the GNU Library General Public License
00016    along with this library; see the file COPYING.LIB.  If not, write to
00017    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00018  * Boston, MA 02110-1301, USA.
00019 */
00020 
00021 #ifndef SYMBOLTABLE_H
00022 #define SYMBOLTABLE_H
00023 
00024 #include <qfont.h>
00025 #include <qmap.h>
00026 #include <qstring.h>
00027 #include <qstringlist.h>
00028 #include <qvaluevector.h>
00029 
00030 #include "kformuladefs.h"
00031 
00032 class KConfig;
00033 
00034 KFORMULA_NAMESPACE_BEGIN
00035 
00036 class ContextStyle;
00037 
00043 class CharTableEntry {
00044 public:
00045 
00049     CharTableEntry( CharClass cl=ORDINARY, char font=0, uchar ch=0 )
00050         : m_charClass( static_cast<char>( cl ) ), m_font( font ), m_character( ch ) {}
00051 
00052     char font() const { return m_font; }
00053     uchar character() const { return m_character; }
00054     CharClass charClass() const { return static_cast<CharClass>( m_charClass ); }
00055 
00056 private:
00057 
00058     char m_charClass;
00059     char m_font;
00060     uchar m_character;
00061 };
00062 
00063 
00067 class SymbolFontHelper {
00068 public:
00069 
00070     SymbolFontHelper();
00071 
00075     QString greekLetters() const { return greek; }
00076 
00080     QChar unicodeFromSymbolFont( QChar pos ) const;
00081 
00082 private:
00083 
00087     QMap<uchar, QChar> compatibility;
00088 
00092     QString greek;
00093 };
00094 
00095 
00101 class KOFORMULA_EXPORT SymbolTable {
00102 public:
00103 
00104     SymbolTable();
00105 
00109     void init( ContextStyle* context );
00110 
00111     bool contains( QString name ) const;
00112 
00117     QChar unicode( QString name ) const;
00118     QString name( QChar symbol ) const;
00119 
00120     const CharTableEntry& entry( QChar symbol, CharStyle style=normalChar ) const;
00121     QFont font( QChar symbol, CharStyle style=normalChar ) const;
00122     uchar character( QChar symbol, CharStyle style=normalChar ) const;
00123     CharClass charClass( QChar symbol, CharStyle style=normalChar ) const;
00124 
00128     QChar unicodeFromSymbolFont( QChar pos ) const;
00129 
00133     QString greekLetters() const;
00134 
00138     QStringList allNames() const;
00139 
00140     typedef QMap<QChar, CharTableEntry> UnicodeTable;
00141     typedef QMap<QChar, QString> NameTable;
00142     typedef QMap<QString, QChar> EntryTable;
00143     typedef QValueVector<QFont> FontTable;
00144 
00145     bool inTable( QChar ch, CharStyle style=anyChar ) const;
00146 
00147     void initFont( const InternFontTable* table,
00148                    const char* fontname,
00149                    const NameTable& tempNames );
00150 
00151 private:
00152 
00153     UnicodeTable& unicodeTable( CharStyle style );
00154     const UnicodeTable& unicodeTable( CharStyle style ) const;
00155 
00159     UnicodeTable normalChars;
00160     UnicodeTable boldChars;
00161     UnicodeTable italicChars;
00162     UnicodeTable boldItalicChars;
00163 
00167     NameTable names;
00168 
00172     EntryTable entries;
00173 
00178     FontTable fontTable;
00179 
00183     SymbolFontHelper symbolFontHelper;
00184 
00185     // An empty entry that's used if nothing was found.
00186     CharTableEntry dummyEntry;
00187 };
00188 
00189 KFORMULA_NAMESPACE_END
00190 
00191 #endif // SYMBOLTABLE_H
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