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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>
Copyright (C) 2006 Alfredo Beaumont Sainz <alfredo.beaumont@gmail.com>
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 <tqfont.h>
#include <tqmap.h>
#include <tqstring.h>
#include <tqstringlist.h>
#include <tqvaluevector.h>
#include "kformuladefs.h"
class KConfig;
KFORMULA_NAMESPACE_BEGIN
class ContextStyle;
struct UnicodeNameTable;
/**
* We expect to always have the symbol font.
*/
class SymbolFontHelper {
public:
SymbolFontHelper();
/**
* @returns a string with all greek letters.
*/
TQString greekLetters() const { return greek; }
/**
* @returns the tqunicode value of the symbol font char.
*/
TQChar tqunicodeFromSymbolFont( TQChar pos ) const;
private:
/**
* symbol font char -> tqunicode mapping.
*/
TQMap<TQChar, TQChar> compatibility;
/**
* All greek letters that are known.
*/
TQString greek;
};
/**
* The symbol table.
*
* It contains all names that are know to the system.
*/
class KOFORMULA_EXPORT SymbolTable {
public:
SymbolTable();
/**
* lazy init support. Needs to be run before anything else.
* @param install if true fonts may be installed if needed
*/
void init( const TQFont& font );
bool contains( TQString name ) const;
/**
* @returns the char in the symbol font that belongs to
* the given name.
*/
TQChar tqunicode( TQString name ) const;
TQString name( TQChar symbol ) const;
TQFont font( TQChar symbol, const TQFont& f ) const;
CharClass charClass( TQChar symbol ) const;
/**
* @returns a string with all greek letters.
*/
TQString greekLetters() const;
/**
* @returns the tqunicode value of the symbol font char.
*/
TQChar tqunicodeFromSymbolFont( TQChar pos ) const;
/**
* @returns all known names as strings.
*/
TQStringList allNames() const;
typedef TQMap<TQChar, TQString> NameTable;
typedef TQMap<TQString, TQChar> EntryTable;
private:
TQString get_name( UnicodeNameTable entry ) const;
/**
* tqunicode -> name mapping.
*/
NameTable names;
/**
* Name -> tqunicode mapping.
*/
EntryTable entries;
/**
* Basic symbol font support.
*/
SymbolFontHelper symbolFontHelper;
/**
* Backup font for mathematical operators. We ensure that every symbol in
* this table is present in this font. If user selected font doesn't have
* the needed glyph this font will be used instead.
*/
TQFont backupFont;
};
KFORMULA_NAMESPACE_END
#endif // SYMBOLTABLE_H
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