MarbleModel.cpp

// SPDX-License-Identifier: LGPL-2.1-or-later
//
// SPDX-FileCopyrightText: 2006-2007 Torsten Rahn <tackat@kde.org>
// SPDX-FileCopyrightText: 2007 Inge Wallin <ingwa@kde.org>
// SPDX-FileCopyrightText: 2008, 2009, 2010 Jens-Michael Hoffmann <jmho@c-xx.com>
// SPDX-FileCopyrightText: 2008-2009 Patrick Spendrin <ps_ml@gmx.de>
// SPDX-FileCopyrightText: 2010-2013 Bernhard Beschow <bbeschow@cs.tu-berlin.de>
// SPDX-FileCopyrightText: 2014 Abhinav Gangwar <abhgang@gmail.com>
//
 
#include "MarbleModel.h"
 
#include <cmath>
 
#include <QAtomicInt>
#include <QPointer>
#include <QAbstractItemModel>
#include <QItemSelectionModel>
#include <QSortFilterProxyModel>
#include <QTextDocument>
 
#include "kdescendantsproxymodel.h"
 
#include "MapThemeManager.h"
#include "MarbleDebug.h"
 
#include "GeoSceneDocument.h"
#include "GeoSceneGeodata.h"
#include "GeoSceneHead.h"
#include "GeoSceneLayer.h"
#include "GeoSceneMap.h"
#include "GeoScenePalette.h"
#include "GeoSceneTileDataset.h"
#include "GeoSceneVector.h"
 
#include "GeoDataDocument.h"
#include "GeoDataFeature.h"
#include "GeoDataPlacemark.h"
#include "GeoDataPoint.h"
#include "GeoDataStyle.h"
#include "GeoDataStyleMap.h"
#include "GeoDataTrack.h"
#include "GeoDataLineStyle.h"
#include "GeoDataPolyStyle.h"
#include "GeoDataTypes.h"
 
#include "DgmlAuxillaryDictionary.h"
#include "MarbleClock.h"
#include "FileStoragePolicy.h"
#include "FileStorageWatcher.h"
#include "PositionTracking.h"
#include "HttpDownloadManager.h"
#include "MarbleDirs.h"
#include "FileManager.h"
#include "GeoDataTreeModel.h"
#include "PlacemarkPositionProviderPlugin.h"
#include "Planet.h"
#include "PlanetFactory.h"
#include "PluginManager.h"
#include "StoragePolicy.h"
#include "SunLocator.h"
#include "TileCreator.h"
#include "TileCreatorDialog.h"
#include "TileLoader.h"
#include "routing/RoutingManager.h"
#include "RouteSimulationPositionProviderPlugin.h"
#include "BookmarkManager.h"
#include "ElevationModel.h"
 
namespace Marble
{
 
class MarbleModelPrivate
{
 public:
    MarbleModelPrivate()
        : m_clock(),
          m_planet(PlanetFactory::construct(QStringLiteral("earth"))),
          m_sunLocator( &m_clock, &m_planet ),
          m_pluginManager(),
          m_homePoint( -9.4, 54.8, 0.0, GeoDataCoordinates::Degree ),  // Some point that tackat defined. :-)
          m_homeZoom( 1050 ),
          m_mapTheme( nullptr ),
          m_storagePolicy( MarbleDirs::localPath() ),
          m_downloadManager( &m_storagePolicy ),
          m_storageWatcher( MarbleDirs::localPath() ),
          m_treeModel(),
          m_descendantProxy(),
          m_placemarkProxyModel(),
          m_placemarkSelectionModel( nullptr ),
          m_fileManager( &m_treeModel, &m_pluginManager ),
          m_positionTracking( &m_treeModel ),
          m_trackedPlacemark( nullptr ),
          m_bookmarkManager( &m_treeModel ),
          m_routingManager( nullptr ),
          m_legend( nullptr ),
          m_workOffline( false ),
          m_elevationModel( &m_downloadManager, &m_pluginManager )
    {
        m_descendantProxy.setSourceModel( &m_treeModel );
 
        m_placemarkProxyModel.setFilterFixedString( GeoDataTypes::GeoDataPlacemarkType );
        m_placemarkProxyModel.setFilterKeyColumn( 1 );
        m_placemarkProxyModel.setSourceModel( &m_descendantProxy );
        m_placemarkSelectionModel.setModel(&m_placemarkProxyModel);
 
        m_groundOverlayProxyModel.setFilterFixedString( GeoDataTypes::GeoDataGroundOverlayType );
        m_groundOverlayProxyModel.setFilterKeyColumn( 1 );
        m_groundOverlayProxyModel.setSourceModel( &m_descendantProxy );
    }
 
    ~MarbleModelPrivate()
    {
        delete m_mapTheme;
        delete m_legend;
    }
    /**
     * @brief Assigns each placemark an inline
     * style based on the color values specified
     * by colorMap attribute under <brush> element
     * in theme file.
     */
    void assignFillColors( const QString &filePath );
    void assignFillColors(GeoDataDocument *doc, const GeoSceneGeodata &data) const;
 
    void addHighlightStyle(GeoDataDocument *doc) const;
 
    // Misc stuff.
    MarbleClock              m_clock;
    Planet                   m_planet;
    SunLocator               m_sunLocator;
 
    PluginManager            m_pluginManager;
 
    // The home position
    GeoDataCoordinates       m_homePoint;
    int                      m_homeZoom;
 
    // View and paint stuff
    GeoSceneDocument        *m_mapTheme;
 
    FileStoragePolicy        m_storagePolicy;
    HttpDownloadManager      m_downloadManager;
 
    // Cache related
    FileStorageWatcher       m_storageWatcher;
 
    // Places on the map
    GeoDataTreeModel         m_treeModel;
    KDescendantsProxyModel   m_descendantProxy;
    QSortFilterProxyModel    m_placemarkProxyModel;
    QSortFilterProxyModel    m_groundOverlayProxyModel;
 
    // Selection handling
    QItemSelectionModel      m_placemarkSelectionModel;
 
    FileManager              m_fileManager;
 
    //Gps Stuff
    PositionTracking         m_positionTracking;
 
    const GeoDataPlacemark  *m_trackedPlacemark;
 
    BookmarkManager          m_bookmarkManager;
    RoutingManager          *m_routingManager;
    QTextDocument           *m_legend;
 
    bool                     m_workOffline;
 
    ElevationModel           m_elevationModel;
};
 
MarbleModel::MarbleModel( QObject *parent )
    : QObject( parent ),
      d( new MarbleModelPrivate() )
{
    // connect the StoragePolicy used by the download manager to the FileStorageWatcher
    connect( &d->m_storagePolicy, SIGNAL(cleared()),
             &d->m_storageWatcher, SLOT(resetCurrentSize()) );
    connect( &d->m_storagePolicy, SIGNAL(sizeChanged(qint64)),
             &d->m_storageWatcher, SLOT(addToCurrentSize(qint64)) );
 
    connect( &d->m_fileManager, SIGNAL(fileAdded(QString)),
             this, SLOT(assignFillColors(QString)) );
 
    d->m_routingManager = new RoutingManager( this, this );
 
    connect(&d->m_clock,   SIGNAL(timeChanged()),
            &d->m_sunLocator, SLOT(update()) );
 
    d->m_pluginManager.addPositionProviderPlugin(new PlacemarkPositionProviderPlugin(this, this));
    d->m_pluginManager.addPositionProviderPlugin(new RouteSimulationPositionProviderPlugin(this, this));
}
 
MarbleModel::~MarbleModel()
{
    delete d;
 
    mDebug() << "Model deleted:" << this;
}
 
BookmarkManager *MarbleModel::bookmarkManager()
{
    return &d->m_bookmarkManager;
}
 
QString MarbleModel::mapThemeId() const
{
    QString mapThemeId;
 
    if (d->m_mapTheme)
        mapThemeId = d->m_mapTheme->head()->mapThemeId();
 
    return mapThemeId;
}
 
GeoSceneDocument *MarbleModel::mapTheme()
{
    return d->m_mapTheme;
}
 
const GeoSceneDocument *MarbleModel::mapTheme() const
{
    return d->m_mapTheme;
}
 
// Set a particular theme for the map and load the appropriate tile level.
// If the tiles (for the lowest tile level) haven't been created already
// then create them here and now.
//
// FIXME: Move the tile creation dialogs out of this function.  Change
//        them into signals instead.
// FIXME: Get rid of 'currentProjection' here.  It's totally misplaced.
//
 
void MarbleModel::setMapThemeId( const QString &mapThemeId )
{
    if ( !mapThemeId.isEmpty() && mapThemeId == this->mapThemeId() )
        return;
 
    GeoSceneDocument *mapTheme = MapThemeManager::loadMapTheme( mapThemeId );
    setMapTheme( mapTheme );
}
 
void MarbleModel::setMapTheme( GeoSceneDocument *document )
{
    GeoSceneDocument *mapTheme = document;
    if ( !mapTheme ) {
        // Check whether the previous theme works
        if ( d->m_mapTheme ){
            qWarning() << "Selected theme doesn't work, so we stick to the previous one";
            return;
        }
 
        // Fall back to default theme
        QString defaultTheme = "earth/srtm/srtm.dgml";
        qWarning() << "Falling back to default theme:" << defaultTheme;
        mapTheme = MapThemeManager::loadMapTheme( defaultTheme );
    }
 
    // If this last resort doesn't work either shed a tear and exit
    if ( !mapTheme ) {
        qWarning() << "Couldn't find a valid DGML map.";
        return;
    }
 
    // find the list of previous theme's geodata
    QList<GeoSceneGeodata> currentDatasets;
    if ( d->m_mapTheme ) {
        for ( GeoSceneLayer *layer: d->m_mapTheme->map()->layers() ) {
            if ( layer->backend() != dgml::dgmlValue_geodata
                 && layer->backend() != dgml::dgmlValue_vector )
                continue;
 
            // look for documents
            for ( GeoSceneAbstractDataset *dataset: layer->datasets() ) {
                GeoSceneGeodata *data = dynamic_cast<GeoSceneGeodata*>( dataset );
                Q_ASSERT( data );
                currentDatasets << *data;
            }
        }
    }
 
    delete d->m_mapTheme;
    d->m_mapTheme = mapTheme;
 
    addDownloadPolicies( d->m_mapTheme );
 
    // Some output to show how to use this stuff ...
    mDebug() << "DGML2 Name       : " << d->m_mapTheme->head()->name();
/*
    mDebug() << "DGML2 Description: " << d->m_mapTheme->head()->description();
 
    if ( d->m_mapTheme->map()->hasTextureLayers() )
        mDebug() << "Contains texture layers! ";
    else
        mDebug() << "Does not contain any texture layers! ";
 
    mDebug() << "Number of SRTM textures: " << d->m_mapTheme->map()->layer("srtm")->datasets().count();
 
    if ( d->m_mapTheme->map()->hasVectorLayers() )
        mDebug() << "Contains vector layers! ";
    else
        mDebug() << "Does not contain any vector layers! ";
*/
    //Don't change the planet unless we have to...
    qreal const radiusAttributeValue = d->m_mapTheme->head()->radius();
    if( d->m_mapTheme->head()->target().toLower() != d->m_planet.id() || radiusAttributeValue != d->m_planet.radius() ) {
        mDebug() << "Changing Planet";
        d->m_planet = PlanetFactory::construct(d->m_mapTheme->head()->target().toLower());
        if ( radiusAttributeValue > 0.0 ) {
            d->m_planet.setRadius( radiusAttributeValue );
        }
        sunLocator()->setPlanet( &d->m_planet );
    }
 
    QStringList fileList;
    QStringList propertyList;
    QList<GeoDataStyle::Ptr> styleList;
    QList<int> renderOrderList;
 
    for ( GeoSceneLayer *layer: d->m_mapTheme->map()->layers() ) {
        if ( layer->backend() != dgml::dgmlValue_geodata
             && layer->backend() != dgml::dgmlValue_vector )
            continue;
 
        // look for datasets which are different from currentDatasets
        for ( const GeoSceneAbstractDataset *dataset: layer->datasets() ) {
            const GeoSceneGeodata *data = dynamic_cast<const GeoSceneGeodata*>( dataset );
            Q_ASSERT( data );
            bool skip = false;
            GeoDataDocument *doc = nullptr;
            for ( int i = 0; i < currentDatasets.size(); ++i ) {
                if ( currentDatasets[i] == *data ) {
                    currentDatasets.removeAt( i );
                    skip = true;
                    break;
                }
                /*
                 * If the sourcefile of data matches any in the currentDatasets then there
                 * is no need to parse the file again just update the style
                 * i.e. <brush> and <pen> values of already parsed file. assignNewStyle() does that
                 */
                if ( currentDatasets[i].sourceFile() == data->sourceFile() ) {
                    doc = d->m_fileManager.at(data->sourceFile());
                    currentDatasets.removeAt(i);
                }
            }
            if ( skip ) {
                continue;
            }
 
            if (doc) {
                d->assignFillColors(doc, *data);
            }
            else {
                const QString filename = data->sourceFile();
                const QString property = data->property();
                const QPen pen = data->pen();
                const QBrush brush = data->brush();
                GeoDataStyle::Ptr style;
                const int renderOrder = data->renderOrder();
 
                /*
                 * data->colors() are the colorMap values from dgml file. If this is not
                 * empty then we are supposed to assign every placemark a different style
                 * by giving it a color from colorMap values based on color index
                 * of that placemark. See assignFillColors() for details. So, we need to
                 * send an empty style to fileManeger otherwise the FileLoader::createFilterProperties()
                 * will overwrite the parsed value of color index ( GeoDataPolyStyle::d->m_colorIndex ).
                 */
                if ( data->colors().isEmpty() ) {
                    GeoDataLineStyle lineStyle( pen.color() );
                    lineStyle.setPenStyle( pen.style() );
                    lineStyle.setWidth( pen.width() );
                    GeoDataPolyStyle polyStyle( brush.color() );
                    polyStyle.setFill( true );
                    style = GeoDataStyle::Ptr(new GeoDataStyle);
                    style->setLineStyle( lineStyle );
                    style->setPolyStyle( polyStyle );
                    style->setId(QStringLiteral("default"));
                }
 
                fileList << filename;
                propertyList << property;
                styleList << style;
                renderOrderList << renderOrder;
            }
        }
    }
    // unload old currentDatasets which are not part of the new map
    for(const GeoSceneGeodata &data: currentDatasets) {
        d->m_fileManager.removeFile( data.sourceFile() );
    }
    // load new datasets
    for ( int i = 0 ; i < fileList.size(); ++i ) {
        d->m_fileManager.addFile( fileList.at(i), propertyList.at(i), styleList.at(i), MapDocument, renderOrderList.at(i) );
    }
 
    mDebug() << "THEME CHANGED: ***" << mapTheme->head()->mapThemeId();
    emit themeChanged( mapTheme->head()->mapThemeId() );
}
 
void MarbleModelPrivate::addHighlightStyle(GeoDataDocument *doc) const
{
    if ( doc ) {
        /*
         * Add a highlight style to GeoDataDocument if
         *the theme file specifies any highlight color.
         */
        QColor highlightBrushColor = m_mapTheme->map()->highlightBrushColor();
        QColor highlightPenColor = m_mapTheme->map()->highlightPenColor();
 
        GeoDataStyle::Ptr highlightStyle(new GeoDataStyle);
        highlightStyle->setId(QStringLiteral("highlight"));
 
        if ( highlightBrushColor.isValid() ) {
            GeoDataPolyStyle highlightPolyStyle;
            highlightPolyStyle.setColor( highlightBrushColor );
            highlightPolyStyle.setFill( true );
            highlightStyle->setPolyStyle( highlightPolyStyle );
        }
        if ( highlightPenColor.isValid() ) {
            GeoDataLineStyle highlightLineStyle( highlightPenColor );
            highlightStyle->setLineStyle( highlightLineStyle );
        }
        if ( highlightBrushColor.isValid()
            || highlightPenColor.isValid() )
        {
            GeoDataStyleMap styleMap = doc->styleMap(QStringLiteral("default-map"));
            styleMap.insert(QStringLiteral("highlight"), QLatin1Char('#') + highlightStyle->id());
            doc->addStyle( highlightStyle );
            doc->addStyleMap( styleMap );
        }
    }
}
 
void MarbleModel::home( qreal &lon, qreal &lat, int& zoom ) const
{
    d->m_homePoint.geoCoordinates( lon, lat, GeoDataCoordinates::Degree );
    zoom = d->m_homeZoom;
}
 
void MarbleModel::setHome( qreal lon, qreal lat, int zoom )
{
    d->m_homePoint = GeoDataCoordinates( lon, lat, 0, GeoDataCoordinates::Degree );
    d->m_homeZoom = zoom;
    emit homeChanged( d->m_homePoint );
}
 
void MarbleModel::setHome( const GeoDataCoordinates& homePoint, int zoom )
{
    d->m_homePoint = homePoint;
    d->m_homeZoom = zoom;
    emit homeChanged( d->m_homePoint );
}
 
HttpDownloadManager *MarbleModel::downloadManager()
{
    return &d->m_downloadManager;
}
 
const HttpDownloadManager *MarbleModel::downloadManager() const
{
    return &d->m_downloadManager;
}
 
 
GeoDataTreeModel *MarbleModel::treeModel()
{
    return &d->m_treeModel;
}
 
const GeoDataTreeModel *MarbleModel::treeModel() const
{
    return &d->m_treeModel;
}
 
QAbstractItemModel *MarbleModel::placemarkModel()
{
    return &d->m_placemarkProxyModel;
}
 
const QAbstractItemModel *MarbleModel::placemarkModel() const
{
    return &d->m_placemarkProxyModel;
}
 
QAbstractItemModel *MarbleModel::groundOverlayModel()
{
    return &d->m_groundOverlayProxyModel;
}
 
const QAbstractItemModel *MarbleModel::groundOverlayModel() const
{
    return &d->m_groundOverlayProxyModel;
}
 
QItemSelectionModel *MarbleModel::placemarkSelectionModel()
{
    return &d->m_placemarkSelectionModel;
}
 
PositionTracking *MarbleModel::positionTracking() const
{
    return &d->m_positionTracking;
}
 
FileManager *MarbleModel::fileManager()
{
    return &d->m_fileManager;
}
 
qreal MarbleModel::planetRadius()   const
{
    return d->m_planet.radius();
}
 
QString MarbleModel::planetName()   const
{
    return d->m_planet.name();
}
 
QString MarbleModel::planetId() const
{
    return d->m_planet.id();
}
 
MarbleClock *MarbleModel::clock()
{
    return &d->m_clock;
}
 
const MarbleClock *MarbleModel::clock() const
{
    return &d->m_clock;
}
 
SunLocator *MarbleModel::sunLocator()
{
    return &d->m_sunLocator;
}
 
const SunLocator *MarbleModel::sunLocator() const
{
    return &d->m_sunLocator;
}
 
quint64 MarbleModel::persistentTileCacheLimit() const
{
    return d->m_storageWatcher.cacheLimit() / 1024;
}
 
void MarbleModel::clearPersistentTileCache()
{
    d->m_storagePolicy.clearCache();
 
    // Now create base tiles again if needed
    if ( d->m_mapTheme->map()->hasTextureLayers() || d->m_mapTheme->map()->hasVectorLayers() ) {
        // If the tiles aren't already there, put up a progress dialog
        // while creating them.
 
        // As long as we don't have an Layer Management Class we just lookup
        // the name of the layer that has the same name as the theme ID
        QString themeID = d->m_mapTheme->head()->theme();
 
        const GeoSceneLayer *layer =
            static_cast<const GeoSceneLayer*>( d->m_mapTheme->map()->layer( themeID ) );
        const GeoSceneTileDataset *texture =
            static_cast<const GeoSceneTileDataset*>( layer->groundDataset() );
 
        QString sourceDir = texture->sourceDir();
        QString installMap = texture->installMap();
        QString role = d->m_mapTheme->map()->layer( themeID )->role();
 
        if ( !TileLoader::baseTilesAvailable( *texture )
            && !installMap.isEmpty() )
        {
            mDebug() << "Base tiles not available. Creating Tiles ... \n"
                     << "SourceDir: " << sourceDir << "InstallMap:" << installMap;
            MarbleDirs::debug();
 
            TileCreator *tileCreator = new TileCreator(
                                     sourceDir,
                                     installMap,
                                     (role == QLatin1String("dem")) ? "true" : "false" );
            tileCreator->setTileFormat( texture->fileFormat().toLower() );
 
            QPointer<TileCreatorDialog> tileCreatorDlg = new TileCreatorDialog( tileCreator, nullptr );
            tileCreatorDlg->setSummary( d->m_mapTheme->head()->name(),
                                        d->m_mapTheme->head()->description() );
            tileCreatorDlg->exec();
            qDebug("Tile creation completed");
            delete tileCreatorDlg;
        }
    }
}
 
void MarbleModel::setPersistentTileCacheLimit(quint64 kiloBytes)
{
    d->m_storageWatcher.setCacheLimit( kiloBytes * 1024 );
 
    if( kiloBytes != 0 )
    {
        if( !d->m_storageWatcher.isRunning() )
            d->m_storageWatcher.start( QThread::IdlePriority );
    }
    else
    {
        d->m_storageWatcher.quit();
    }
    // TODO: trigger update
}
 
void MarbleModel::setTrackedPlacemark( const GeoDataPlacemark *placemark )
{
    d->m_trackedPlacemark = placemark;
    emit trackedPlacemarkChanged( placemark );
}
 
const GeoDataPlacemark* MarbleModel::trackedPlacemark() const
{
    return d->m_trackedPlacemark;
}
 
const PluginManager* MarbleModel::pluginManager() const
{
    return &d->m_pluginManager;
}
 
PluginManager* MarbleModel::pluginManager()
{
    return &d->m_pluginManager;
}
 
const Planet *MarbleModel::planet() const
{
    return &d->m_planet;
}
 
void MarbleModel::addDownloadPolicies( const GeoSceneDocument *mapTheme )
{
    if ( !mapTheme )
        return;
    if ( !mapTheme->map()->hasTextureLayers() && !mapTheme->map()->hasVectorLayers() )
        return;
 
    // As long as we don't have an Layer Management Class we just lookup
    // the name of the layer that has the same name as the theme ID
    const QString themeId = mapTheme->head()->theme();
    const GeoSceneLayer * const layer = static_cast<const GeoSceneLayer*>( mapTheme->map()->layer( themeId ));
    if ( !layer )
        return;
 
    const GeoSceneTileDataset * const texture = static_cast<const GeoSceneTileDataset*>( layer->groundDataset() );
    if ( !texture )
        return;
 
    QList<const DownloadPolicy *> policies = texture->downloadPolicies();
    QList<const DownloadPolicy *>::const_iterator pos = policies.constBegin();
    QList<const DownloadPolicy *>::const_iterator const end = policies.constEnd();
    for (; pos != end; ++pos ) {
        d->m_downloadManager.addDownloadPolicy( **pos );
    }
}
 
RoutingManager* MarbleModel::routingManager()
{
    return d->m_routingManager;
}
 
const RoutingManager* MarbleModel::routingManager() const
{
    return d->m_routingManager;
}
 
void MarbleModel::setClockDateTime( const QDateTime& datetime )
{
    d->m_clock.setDateTime( datetime );
}
 
QDateTime MarbleModel::clockDateTime() const
{
    return d->m_clock.dateTime();
}
 
int MarbleModel::clockSpeed() const
{
    return d->m_clock.speed();
}
 
void MarbleModel::setClockSpeed( int speed )
{
    d->m_clock.setSpeed( speed );
}
 
void MarbleModel::setClockTimezone( int timeInSec )
{
    d->m_clock.setTimezone( timeInSec );
}
 
int MarbleModel::clockTimezone() const
{
    return d->m_clock.timezone();
}
 
QTextDocument * MarbleModel::legend()
{
    return d->m_legend;
}
 
void MarbleModel::setLegend( QTextDocument * legend )
{
    delete d->m_legend;
    d->m_legend = legend;
}
 
void MarbleModel::addGeoDataFile( const QString& filename )
{
    d->m_fileManager.addFile( filename, filename, GeoDataStyle::Ptr(), UserDocument, 0, true );
}
 
void MarbleModel::addGeoDataString( const QString& data, const QString& key )
{
    d->m_fileManager.addData( key, data, UserDocument );
}
 
void MarbleModel::removeGeoData( const QString& fileName )
{
    d->m_fileManager.removeFile( fileName );
}
 
void MarbleModel::updateProperty( const QString &property, bool value )
{
    for( GeoDataFeature *feature: d->m_treeModel.rootDocument()->featureList()) {
        if (auto document = geodata_cast<GeoDataDocument>(feature)) {
            if( document->property() == property ){
                document->setVisible( value );
                d->m_treeModel.updateFeature( document );
            }
        }
    }
}
 
void MarbleModelPrivate::assignFillColors(const QString &filePath)
{
    const GeoSceneGeodata *data = nullptr;
 
    for (auto layer : m_mapTheme->map()->layers()) {
        if (layer->backend() != dgml::dgmlValue_geodata
            && layer->backend() != dgml::dgmlValue_vector) {
            continue;
        }
 
        for (auto dataset: layer->datasets()) {
            auto sceneData = dynamic_cast<const GeoSceneGeodata *>(dataset);
            if (sceneData != nullptr && sceneData->sourceFile() == filePath) {
                data = sceneData;
                break;
            }
        }
 
        if (data) {
            break;
        }
    }
 
    if (data == nullptr) {
        return;
    }
 
    GeoDataDocument *doc = m_fileManager.at(filePath);
    Q_ASSERT( doc );
 
    assignFillColors(doc, *data);
}
 
void MarbleModelPrivate::assignFillColors(GeoDataDocument *doc, const GeoSceneGeodata &data) const
{
    addHighlightStyle( doc );
 
    const QPen pen = data.pen();
    const QBrush brush = data.brush();
    const QVector<QColor> colors = data.colors();
    GeoDataLineStyle lineStyle( pen.color() );
    lineStyle.setPenStyle( pen.style() );
    lineStyle.setWidth( pen.width() );
 
    if (!colors.isEmpty()) {
        const qreal alpha = data.alpha();
        for (auto feature : *doc) {
            auto placemark = geodata_cast<GeoDataPlacemark>(feature);
            if (placemark == nullptr) {
                continue;
            }
 
            GeoDataStyle::Ptr style(new GeoDataStyle);
            style->setId(QStringLiteral("normal"));
            style->setLineStyle( lineStyle );
            quint8 colorIndex = placemark->style()->polyStyle().colorIndex();
            GeoDataPolyStyle polyStyle;
            // Set the colorIndex so that it's not lost after setting new style.
            polyStyle.setColorIndex( colorIndex );
            QColor color;
            // color index having value 99 is undefined
            Q_ASSERT( colors.size() );
            if (colorIndex > colors.size() || (colorIndex - 1) < 0) {
                color = colors[0];      // Assign the first color as default
            }
            else {
                color = colors[colorIndex-1];
            }
            color.setAlphaF( alpha );
            polyStyle.setColor( color );
            polyStyle.setFill( true );
            style->setPolyStyle( polyStyle );
            placemark->setStyle( style );
        }
    }
    else {
        GeoDataStyle::Ptr style(new GeoDataStyle);
        GeoDataPolyStyle polyStyle( brush.color() );
        polyStyle.setFill( true );
        style->setLineStyle( lineStyle );
        style->setPolyStyle( polyStyle );
        style->setId(QStringLiteral("default"));
        GeoDataStyleMap styleMap;
        styleMap.setId(QStringLiteral("default-map"));
        styleMap.insert(QStringLiteral("normal"), QLatin1Char('#') + style->id());
        doc->addStyle( style );
        doc->addStyleMap( styleMap );
 
        const QString styleUrl = QLatin1Char('#') + styleMap.id();
 
        for (auto feature : *doc) {
            auto placemark = geodata_cast<GeoDataPlacemark>(feature);
            if (placemark == nullptr) {
                continue;
            }
 
            if (geodata_cast<GeoDataTrack>(placemark->geometry()) ||
                geodata_cast<GeoDataPoint>(placemark->geometry())) {
                continue;
            }
 
            placemark->setStyleUrl(styleUrl);
        }
    }
}
 
bool MarbleModel::workOffline() const
{
    return d->m_workOffline;
}
 
void MarbleModel::setWorkOffline( bool workOffline )
{
    if ( d->m_workOffline != workOffline ) {
        downloadManager()->setDownloadEnabled( !workOffline );
 
        d->m_workOffline = workOffline;
        emit workOfflineChanged();
    }
}
 
ElevationModel* MarbleModel::elevationModel()
{
    return &d->m_elevationModel;
}
 
const ElevationModel* MarbleModel::elevationModel() const
{
    return &d->m_elevationModel;
}
 
}
 
#include "moc_MarbleModel.cpp"