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// Copyright (C) 2008  Lukas Lalinsky
//
// 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.

#include "line.h"
#include "diagramdocument.h"
#include "diagramobject.h"
#include "connector.h"

Line::Line(DiagramItem *parent)
	: DiagramItem(parent)
{
	m_connectors[0] = new Connector(this);
	m_connectors[1] = new Connector(this);
	setZValue(1.0);
}

Connector *
Line::connector(int index) const
{
	Q_ASSERT(index == 0 || index == 1);
	return m_connectors[index];
}

void
Line::updatePositions()
{
}

#include "domutils.h"

void
Line::loadFromXml(QDomElement element, DiagramDocument *document)
{
	DiagramItem::loadFromXml(element, document);
	QDomElement connectionElement = element.firstChildElement("connection");
	if (!connectionElement.isNull()) {
		QString sourceId = readStringElement(connectionElement, "source");
		QString targetId = readStringElement(connectionElement, "target");
		if (document) {
/*			setSource(qobject_cast<DiagramObject *>(document->itemById(sourceId)));
			setTarget(qobject_cast<DiagramObject *>(document->itemById(targetId)));*/
		}
	}
}

void
Line::saveToXml(QDomDocument doc, QDomElement element)
{
	DiagramItem::saveToXml(doc, element);
	QDomElement connectionElement = doc.createElement("connection");
	element.appendChild(connectionElement);
/*	if (m_objects[0] != NULL)
		appendStringElement(doc, connectionElement, "source", m_objects[0]->id());
	if (m_objects[1] != NULL)
		appendStringElement(doc, connectionElement, "target", m_objects[1]->id());*/
}