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/*
* KmPlot - a math. function plotter for the KDE-Desktop
*
* Copyright (C) 1998, 1999 Klaus-Dieter Möler
* 2000, 2002 kd.moeller@t-online.de
*
* This file is part of the KDE Project.
* KmPlot is part of the KDE-EDU Project.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#ifndef KMPLOTIO_H
#define KMPLOTIO_H
#include <kurl.h>
#include "xparser.h"
class QString;
class XParser;
/** @short This class manages the file operations load and save.
*
* @author Klaus-Dieter Möller & Matthias Meßmer
*/
class KmPlotIO
{
public:
/// Nothing to do here; only static functions needed.
KmPlotIO( XParser *parser);
/// Empty.
~KmPlotIO();
/**
* Store all information about the current saved plot in a xml file with the .fkt extension
* in the filename file.
* @param url Name (URL) of the file which will be saved.
*/
bool save( const KURL &url );
/**
* Read a kmpdoc xml file to restaure the settings of a previously saved plot
* @param url Name (URL) of file which will be opened
*/
bool load( const KURL &url );
private:
/** Esay way to add a tag to the Dom tree
* @param &doc The document.
* @param parentTag The parent tag to support encapsulated tags.
* @param tagName The Name of the tag.
* @param tagValue The data between the opening and cloding tag.
*/
void addTag( QDomDocument &doc, QDomElement &parentTag, const QString tagName, const QString tagValue );
/// Reads axes parameters from the node @a n.
/// @param n Node containing the options.
void parseAxes( const QDomElement &n );
/// Reads grid parameters from the node @a n.
/// @param n Node containing the options.
void parseGrid( const QDomElement &n );
/// Reads scale parameters from the node @a n.
/// @param n Node containing the options.
void parseScale( const QDomElement &n );
/// Reads function parameters from the node @a n.
/// @param parser points to the parser instance.
/// @param n Node containing the options.
void parseFunction( XParser *parser, const QDomElement &n );
/// Reads parameter values for a function from the node @a n.
/// @param parser points to the parser instance.
/// @param n Node containing the options.
/// @param ix Function index in the parser instance
void parseParameters( XParser *parser, const QDomElement &n, Ufkt &ufkt);
/// For KDE 3.3
void parseThreeDotThreeParameters( XParser *parser, const QDomElement &n, Ufkt &ufkt);
///For KDE <3.3
/// This is the same as parseScale but is made for old Kmplot-files
void oldParseScale( const QDomElement & n );
/// This is the same as parseFunction but is made for old Kmplot-files
void oldParseFunction( XParser *parser, const QDomElement &n );
/// This is the same as parseAxes but is made for old Kmplot-files
void oldParseAxes( const QDomElement &n );
XParser *m_parser;
};
#endif
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