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149 lines
3.5 KiB
149 lines
3.5 KiB
/* This file is part of the KDE project
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Copyright (C) 2001 Andrea Rizzi <rizzi@kde.org>
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Ulrich Kuettler <ulrich.kuettler@mailbox.tu-dresden.de>
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Copyright (C) 2006 Alfredo Beaumont Sainz <alfredo.beaumont@gmail.com>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef SYMBOLTABLE_H
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#define SYMBOLTABLE_H
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#include <tqfont.h>
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#include <tqmap.h>
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#include <tqstring.h>
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#include <tqstringlist.h>
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#include <tqvaluevector.h>
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#include "kformuladefs.h"
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class KConfig;
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KFORMULA_NAMESPACE_BEGIN
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class ContextStyle;
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struct UnicodeNameTable;
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/**
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* We expect to always have the symbol font.
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*/
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class SymbolFontHelper {
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public:
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SymbolFontHelper();
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/**
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* @returns a string with all greek letters.
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*/
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TQString greekLetters() const { return greek; }
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/**
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* @returns the unicode value of the symbol font char.
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*/
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TQChar unicodeFromSymbolFont( TQChar pos ) const;
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private:
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/**
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* symbol font char -> unicode mapping.
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*/
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TQMap<TQChar, TQChar> compatibility;
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/**
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* All greek letters that are known.
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*/
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TQString greek;
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};
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/**
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* The symbol table.
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*
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* It contains all names that are know to the system.
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*/
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class KOFORMULA_EXPORT SymbolTable {
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public:
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SymbolTable();
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/**
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* lazy init support. Needs to be run before anything else.
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* @param install if true fonts may be installed if needed
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*/
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void init( const TQFont& font );
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bool contains( TQString name ) const;
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/**
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* @returns the char in the symbol font that belongs to
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* the given name.
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*/
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TQChar unicode( TQString name ) const;
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TQString name( TQChar symbol ) const;
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TQFont font( TQChar symbol, const TQFont& f ) const;
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CharClass charClass( TQChar symbol ) const;
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/**
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* @returns a string with all greek letters.
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*/
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TQString greekLetters() const;
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/**
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* @returns the unicode value of the symbol font char.
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*/
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TQChar unicodeFromSymbolFont( TQChar pos ) const;
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/**
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* @returns all known names as strings.
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*/
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TQStringList allNames() const;
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typedef TQMap<TQChar, TQString> NameTable;
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typedef TQMap<TQString, TQChar> EntryTable;
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private:
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TQString get_name( UnicodeNameTable entry ) const;
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/**
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* unicode -> name mapping.
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*/
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NameTable names;
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/**
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* Name -> unicode mapping.
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*/
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EntryTable entries;
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/**
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* Basic symbol font support.
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*/
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SymbolFontHelper symbolFontHelper;
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/**
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* Backup font for mathematical operators. We ensure that every symbol in
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* this table is present in this font. If user selected font doesn't have
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* the needed glyph this font will be used instead.
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*/
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TQFont backupFont;
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};
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KFORMULA_NAMESPACE_END
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#endif // SYMBOLTABLE_H
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