/*
    Scan Tailor - Interactive post-processing tool for scanned pages.
    Copyright (C)  Joseph Artsimovich <joseph.artsimovich@gmail.com>

    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 "XmlMarshaller.h"
#include "OrthogonalRotation.h"
#include "Margins.h"
#include "Dpi.h"
#include "Utils.h"
#include <QPointF>
#include <QLineF>
#include <QRect>
#include <QRectF>
#include <QPolygonF>
#include <QSize>
#include <QString>

QDomElement
XmlMarshaller::string(QString const& str, QString const& name)
{
    QDomElement el(m_doc.createElement(name));
    el.appendChild(m_doc.createTextNode(str));
    return el;
}

QDomElement
XmlMarshaller::size(QSize const& size, QString const& name)
{
    if (size.isNull()) {
        return QDomElement();
    }

    QDomElement el(m_doc.createElement(name));
    el.setAttribute("width", size.width());
    el.setAttribute("height", size.height());
    return el;
}

QDomElement
XmlMarshaller::sizeF(QSizeF const& size, QString const& name)
{
    if (size.isNull()) {
        return QDomElement();
    }

    QDomElement el(m_doc.createElement(name));
    el.setAttribute("width", Utils::doubleToString(size.width()));
    el.setAttribute("height", Utils::doubleToString(size.height()));
    return el;
}

QDomElement
XmlMarshaller::dpi(Dpi const& dpi, QString const& name)
{
    if (dpi.isNull()) {
        return QDomElement();
    }

    QDomElement el(m_doc.createElement(name));
    el.setAttribute("horizontal", dpi.horizontal());
    el.setAttribute("vertical", dpi.vertical());
    return el;
}

QDomElement
XmlMarshaller::rotation(OrthogonalRotation const& rotation, QString const& name)
{
    QDomElement el(m_doc.createElement(name));
    el.setAttribute("degrees", rotation.toDegrees());
    return el;
}

QDomElement
XmlMarshaller::pointF(QPointF const& p, QString const& name)
{
    QDomElement el(m_doc.createElement(name));
    el.setAttribute("x", Utils::doubleToString(p.x()));
    el.setAttribute("y", Utils::doubleToString(p.y()));
    return el;
}

QDomElement
XmlMarshaller::lineF(QLineF const& line, QString const& name)
{
    QDomElement el(m_doc.createElement(name));
    el.appendChild(pointF(line.p1(), "p1"));
    el.appendChild(pointF(line.p2(), "p2"));
    return el;
}

QDomElement
XmlMarshaller::rect(QRect const& rect, QString const& name)
{
    QDomElement el(m_doc.createElement(name));
    el.setAttribute("x", QString::number(rect.x()));
    el.setAttribute("y", QString::number(rect.y()));
    el.setAttribute("width", QString::number(rect.width()));
    el.setAttribute("height", QString::number(rect.height()));
    return el;
}

QDomElement
XmlMarshaller::rectF(QRectF const& rect, QString const& name)
{
    QDomElement el(m_doc.createElement(name));
    el.setAttribute("x", Utils::doubleToString(rect.x()));
    el.setAttribute("y", Utils::doubleToString(rect.y()));
    el.setAttribute("width", Utils::doubleToString(rect.width()));
    el.setAttribute("height", Utils::doubleToString(rect.height()));
    return el;
}

QDomElement
XmlMarshaller::polygonF(QPolygonF const& poly, QString const& name)
{
    QDomElement el(m_doc.createElement(name));

    QPolygonF::const_iterator it(poly.begin());
    QPolygonF::const_iterator const end(poly.end());
    for (; it != end; ++it) {
        el.appendChild(pointF(*it, "point"));
    }

    return el;
}

QDomElement
XmlMarshaller::margins(Margins const& margins, QString const& name)
{
    QDomElement el(m_doc.createElement(name));
    el.setAttribute("left", Utils::doubleToString(margins.left()));
    el.setAttribute("right", Utils::doubleToString(margins.right()));
    el.setAttribute("top", Utils::doubleToString(margins.top()));
    el.setAttribute("bottom", Utils::doubleToString(margins.bottom()));
    return el;
}

QDomElement
XmlMarshaller::marginsHandler(MarginsWithAuto const& margins, QString const& name)
{
    QDomElement el(m_doc.createElement(name));
    el.setAttribute("left", Utils::doubleToString(margins.left()));
    el.setAttribute("right", Utils::doubleToString(margins.right()));
    el.setAttribute("top", Utils::doubleToString(margins.top()));
    el.setAttribute("bottom", Utils::doubleToString(margins.bottom()));
    el.setAttribute("autoMargins", margins.isAutoMarginsEnabled() ? "true" : "false");
    if (margins.isAutoMarginsEnabled()) {
        el.setAttribute("backup_left", Utils::doubleToString(margins.backup()->left()));
        el.setAttribute("backup_right", Utils::doubleToString(margins.backup()->right()));
        el.setAttribute("backup_top", Utils::doubleToString(margins.backup()->top()));
        el.setAttribute("backup_bottom", Utils::doubleToString(margins.backup()->bottom()));
    }
    return el;
}
