source: psi/trunk/src/varlist.cpp

/****************************************************************************
** varlist.cpp - class for handling a list of string vars
** Copyright (C) 2001, 2002  Justin Karneges
**
** 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.
**
****************************************************************************/

#include"varlist.h"


VarList::VarList()
:QValueList<VarListItem>()
{
}

QStringList VarList::varsToStringList()
{
        QStringList list;
        for(VarList::Iterator it = begin(); it != end(); ++it)
                list.append((*it).key());
        return list;
}

QDomElement VarList::toXml(QDomDocument &doc, const QString &tagName)
{
        QDomElement base = doc.createElement(tagName);
        for(VarList::Iterator it = begin(); it != end(); ++it) {
                QDomElement tag = doc.createElement("item");
                tag.setAttribute("name", (*it).key());
                QDomText text = doc.createTextNode((*it).data());
                tag.appendChild(text);
                base.appendChild(tag);
        }
        return base;
}

void VarList::fromXml(const QDomElement &e)
{
        clear();

        for(QDomNode n = e.firstChild(); !n.isNull(); n = n.nextSibling()) {
                QDomElement i = n.toElement();
                if(i.isNull())
                        continue;
                if(i.tagName() == "item") {
                        QString var, val;
                        var = i.attribute("name");
                        QDomText t = i.firstChild().toText();
                        if(!t.isNull())
                                val = t.data();
                        set(var, val);
                }
        }
}

void VarList::set(const QString &key, const QString &data)
{
        VarList::Iterator it = findByKey(key);
        if(it == end()) {
                VarListItem v;
                v.setKey(key);
                v.setData(data);
                append(v);
        }
        else {
                (*it).setData(data);
        }
}

void VarList::unset(const QString &key)
{
        VarList::Iterator it = findByKey(key);
        if(it == end())
                return;
        remove(it);
}

const QString & VarList::get(const QString &key)
{
        VarList::Iterator it = findByKey(key);
        return (*it).data();
}

VarList::Iterator VarList::findByKey(const QString &key)
{
        VarList::Iterator it;
        for(it = begin(); it != end(); ++it) {
                if((*it).key() == key)
                        break;
        }

        return it;
}

VarList::Iterator VarList::findByNum(int x)
{
        int n = 0;
        VarList::Iterator it;
        for(it = begin(); it != end(); ++it) {
                if(n >= x)
                        break;
                ++n;
        }

        return it;
}