KmlGroundOverlayWriter.cpp

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//
// This file is part of the Marble Virtual Globe.
//
// This program is free software licensed under the GNU LGPL. You can
// find a copy of this license in LICENSE.txt in the top directory of
// the source code.
//
// Copyright 2012      Shou Ya <shouyatf@gmail.com>
// Copyright 2012      Dennis Nienhüser <earthwings@gentoo.org>
//

#include "KmlGroundOverlayWriter.h"

#include "GeoDataGroundOverlay.h"
#include "GeoDataTypes.h"
#include "GeoWriter.h"
#include "KmlElementDictionary.h"

namespace Marble
{

static GeoTagWriterRegistrar s_writerLookAt(
    GeoTagWriter::QualifiedName( GeoDataTypes::GeoDataGroundOverlayType,
                 kml::kmlTag_nameSpace22 ),
    new KmlGroundOverlayWriter );

KmlGroundOverlayWriter::KmlGroundOverlayWriter() : KmlOverlayTagWriter( kml::kmlTag_GroundOverlay )
{
    // nothing to do
}

bool KmlGroundOverlayWriter::writeMid(const GeoNode *node, GeoWriter &writer) const
{
    const GeoDataGroundOverlay *ground_overlay =
        static_cast<const GeoDataGroundOverlay*>( node );

    writer.writeTextElement( kml::kmlTag_altitude,
                             QString::number(ground_overlay->altitude()) );
    writer.writeTextElement( kml::kmlTag_altitudeMode,
                             altitudeModeToString(ground_overlay->altitudeMode()) );

    if ( !ground_overlay->latLonBox().isEmpty() ) {
        writeElement( &ground_overlay->latLonBox(), writer );
    }

    if ( ground_overlay->latLonQuad().isValid() ) {
        writeElement( &ground_overlay->latLonQuad(), writer );
    }

    return true;
}

QString KmlGroundOverlayWriter::altitudeModeToString(AltitudeMode mode)
{
    switch (mode) {
    case ClampToGround:
    return "clampToGround";
    case RelativeToGround:
    return "relativeToGround";
    case Absolute:
    return "absolute";
    }
    return "";
}

}