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Zone.cpp
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Zone.cpp
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/*
Scan Tailor - Interactive post-processing tool for scanned pages.
Copyright (C) 2007-2009 Joseph Artsimovich <joseph_a@mail.ru>
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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "Zone.h"
#include <QDomDocument>
#include <QDomElement>
#include <QString>
Zone::Zone(SerializableSpline const& spline, PropertySet const& props)
: m_spline(spline),
m_props(props)
{
}
Zone::Zone(QDomElement const& el, PropertyFactory const& prop_factory)
: m_spline(el.namedItem("spline").toElement()),
m_props(el.namedItem("properties").toElement(), prop_factory)
{
}
QDomElement
Zone::toXml(QDomDocument& doc, QString const& name) const
{
QDomElement el(doc.createElement(name));
el.appendChild(m_spline.toXml(doc, "spline"));
el.appendChild(m_props.toXml(doc, "properties"));
return el;
}
bool
Zone::isValid() const
{
QPolygonF const& shape = m_spline.toPolygon();
switch (shape.size()) {
case 0:
case 1:
case 2:
return false;
case 3:
if (shape.front() == shape.back()) {
return false;
}
// fall through
default:
return true;
}
}