F:/KPlato/koffice/libs/kformula/symboltable.h

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/* This file is part of the KDE project
   Copyright (C) 2001 Andrea Rizzi <rizzi@kde.org>
                      Ulrich Kuettler <ulrich.kuettler@mailbox.tu-dresden.de>

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.

   This library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public License
   along with this library; see the file COPYING.LIB.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
*/

#ifndef SYMBOLTABLE_H
#define SYMBOLTABLE_H

#include <QFont>
#include <QMap>
#include <QString>
#include <QStringList>
#include <QVector>
#include "kformuladefs.h"
#include "contextstyle.h"
class KConfig;

namespace KFormula
{

        
class CharTableEntry {
public:

    CharTableEntry( CharClass cl=ORDINARY, char font=0, QChar ch=0 )
        : m_charClass( static_cast<char>( cl ) ), m_font( font ), m_character( ch ) {}

    char font() const { return m_font; }
    QChar character() const { return m_character; }
    CharClass charClass() const { return static_cast<CharClass>( m_charClass ); }

private:

    char m_charClass;
    char m_font;
    QChar m_character;
};


class SymbolFontHelper {
public:

    SymbolFontHelper();

    QString greekLetters() const { return greek; }

    QChar unicodeFromSymbolFont( QChar pos ) const;

private:

    QMap<QChar, QChar> compatibility;

    QString greek;
};


class KOFORMULA_EXPORT SymbolTable
{
  public:
         SymbolTable();

    void init( ContextStyle* context );

    bool contains( const QString & name ) const;

    QChar unicode( const QString & name ) const;
    QString name( QChar symbol ) const;

    const CharTableEntry& entry( QChar symbol, CharStyle style=normalChar ) const;
    QFont font( QChar symbol, CharStyle style=normalChar ) const;
    QChar character( QChar symbol, CharStyle style=normalChar ) const;
    CharClass charClass( QChar symbol, CharStyle style=normalChar ) const;

    QChar unicodeFromSymbolFont( QChar pos ) const;

    QString greekLetters() const;

    QStringList allNames() const;

    typedef QMap<QChar, CharTableEntry> UnicodeTable;
    typedef QMap<QChar, QString> NameTable;
    typedef QMap<QString, QChar> EntryTable;
    typedef QVector<QFont> FontTable;

    bool inTable( QChar ch, CharStyle style=anyChar ) const;

    void initFont( const InternFontTable* table,
                   const char* fontname,
                   const NameTable& tempNames );

private:

    UnicodeTable& unicodeTable( CharStyle style );
    const UnicodeTable& unicodeTable( CharStyle style ) const;

    UnicodeTable normalChars;
    UnicodeTable boldChars;
    UnicodeTable italicChars;
    UnicodeTable boldItalicChars;

    NameTable names;

    EntryTable entries;

    FontTable fontTable;

    SymbolFontHelper symbolFontHelper;

    // An empty entry that's used if nothing was found.
    CharTableEntry dummyEntry;
};

}

#endif // SYMBOLTABLE_H

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