CRNAltoDescription.cpp

Go to the documentation of this file.

/* Copyright 2011-2016 CoReNum
 * 
 * This file is part of libcrn.
 * 
 * libcrn is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * libcrn 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 Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with libcrn.  If not, see <http://www.gnu.org/licenses/>.
 * 
 * file: CRNAltoDescription.cpp
 * \author Yann LEYDIER
 */

#include <CRNXml/CRNAlto.h>
#include <CRNException.h>
#include <CRNi18n.h>

using namespace crn;
using namespace xml;

Alto::Description::Description(const Element &el):
    Element(el)
{
}

Alto::Description::Description(const Element &el, const Path &imagename):
    Element(el)
{
    if (imagename.IsEmpty())
        throw ExceptionInvalidArgument(_("Null image filename."));
    Element sel = PushBackElement("MesurementUnit");
    sel.PushBackText("pixel");
    sel = PushBackElement("sourceImageInformation");
    sel = sel.PushBackElement("fileName");
    Path uri(imagename);
    uri.ToURI();
    sel.PushBackText(uri);
}

Option<Alto::Description::MeasurementUnit> Alto::Description::GetMeasurementUnit()
{
    Option<MeasurementUnit> munit;
    StringUTF8 mu;
    Element e = GetFirstChildElement("MeasurementUnit");
    if (e)
    {
        mu = e.GetFirstChildText();
        mu.ToLower();
        if (mu == "pixel")
            munit = MeasurementUnit::Pixel;
        else if (mu == "mm10")
            munit = MeasurementUnit::MM;
        else if (mu == "inch1200")
            munit = MeasurementUnit::Inch;
        else
            throw ExceptionDomain(_("Invalid measurement unit."));
    }
    return munit;
}

Option<StringUTF8> Alto::Description::GetFilename()
{
    Option<StringUTF8> fn;
    Element e = GetFirstChildElement("sourceImageInformation");
    if (e)
    {
        e = e.GetFirstChildElement("fileName");
        if (e)
            fn = e.GetFirstChildText();
    }
    return fn;
}