File indexing completed on 2025-01-05 03:59:01

 // SPDX-License-Identifier: LGPL-2.1-or-later
 //
 // SPDX-FileCopyrightText: 2011 Guillaume Martres <smarter@ubuntu.com>
 //
 
 #include "GeoDataTrack.h"
 #include "GeoDataGeometry_p.h"
 
 #include <iterator>
 
 #include <QMap>
 #include <QDateTime>
 
 #include "GeoDataLatLonAltBox.h"
 #include "GeoDataTypes.h"
 #include "GeoDataLineString.h"
 #include "GeoDataExtendedData.h"
 
 #include "digikam_debug.h"
 
 namespace Marble {
 
 class GeoDataTrackPrivate : public GeoDataGeometryPrivate
 {
 public:
     GeoDataTrackPrivate()
         : m_lineStringNeedsUpdate( false ),
           m_interpolate( false )
     {
     }
 
     GeoDataGeometryPrivate *copy() const override { return new GeoDataTrackPrivate( *this ); }
 
     void equalizeWhenSize()
     {
         m_when.reserve(m_coordinates.size());
         while ( m_when.size() < m_coordinates.size() ) {
             //fill coordinates without time information with null QDateTime
             m_when.append( QDateTime() );
         }
     }
 
     mutable GeoDataLineString m_lineString;
     mutable bool m_lineStringNeedsUpdate;
 
     bool m_interpolate;
 
     QVector<QDateTime> m_when;
     QVector<GeoDataCoordinates> m_coordinates;
 
     GeoDataExtendedData m_extendedData;
 };
 
 GeoDataTrack::GeoDataTrack() :
     GeoDataGeometry( new GeoDataTrackPrivate() )
 {
 
 }
 
 GeoDataTrack::GeoDataTrack( const GeoDataTrack &other )
     : GeoDataGeometry( other )
 {
 
 }
 
 GeoDataTrack &GeoDataTrack::operator=( const GeoDataTrack &other )
 {
     GeoDataGeometry::operator=( other );
 
     return *this;
 }
 
 const char *GeoDataTrack::nodeType() const
 {
     return GeoDataTypes::GeoDataTrackType;
 }
 
 EnumGeometryId GeoDataTrack::geometryId() const
 {
     return GeoDataTrackId;
 }
 
 GeoDataGeometry *GeoDataTrack::copy() const
 {
     return new GeoDataTrack(*this);
 }
 
 
 bool GeoDataTrack::operator==( const GeoDataTrack& other ) const
 {
     Q_D(const GeoDataTrack);
     const GeoDataTrackPrivate * const otherD = other.d_func();
 
     return equals(other) &&
            d->m_when == otherD->m_when &&
            d->m_coordinates == otherD->m_coordinates &&
            d->m_extendedData == otherD->m_extendedData &&
            d->m_interpolate == otherD->m_interpolate;
 }
 
 bool GeoDataTrack::operator!=( const GeoDataTrack& other ) const
 {
     return !this->operator==( other );
 }
 
 int GeoDataTrack::size() const
 {
     Q_D(const GeoDataTrack);
     return d->m_coordinates.size();
 }
 
 bool GeoDataTrack::interpolate() const
 {
     Q_D(const GeoDataTrack);
     return d->m_interpolate;
 }
 
 void GeoDataTrack::setInterpolate(bool on)
 {
     detach();
 
     Q_D(GeoDataTrack);
     d->m_interpolate = on;
 }
 
 QDateTime GeoDataTrack::firstWhen() const
 {
     Q_D(const GeoDataTrack);
 
     if (d->m_when.isEmpty()) {
         return QDateTime();
     }
 
     return d->m_when.first();
 }
 
 QDateTime GeoDataTrack::lastWhen() const
 {
     Q_D(const GeoDataTrack);
 
     if (d->m_when.isEmpty()) {
         return QDateTime();
     }
 
     return d->m_when.last();
 }
 
 QVector<GeoDataCoordinates> GeoDataTrack::coordinatesList() const
 {
     Q_D(const GeoDataTrack);
     return d->m_coordinates;
 }
 
 QVector<QDateTime> GeoDataTrack::whenList() const
 {
     Q_D(const GeoDataTrack);
     return d->m_when;
 }
 
 GeoDataCoordinates GeoDataTrack::coordinatesAt( const QDateTime &when ) const
 {
     Q_D(const GeoDataTrack);
 
     if (d->m_when.isEmpty()) {
         return GeoDataCoordinates();
     }
 
     if (d->m_when.contains(when)) {
         //exact match found
         const int index = d->m_when.indexOf(when);
         if (index < d->m_coordinates.size()) {
             return d->m_coordinates.at(index);
         }
     }
 
     if ( !interpolate() ) {
         return GeoDataCoordinates();
     }
 
     typedef QMap<QDateTime, GeoDataCoordinates> PointMap;
     PointMap pointMap;
     for (int i = 0; i < qMin(d->m_when.size(), d->m_coordinates.size()); ++i) {
         if (d->m_when.at(i).isValid()) {
             pointMap[d->m_when.at(i)] = d->m_coordinates.at(i);
         }
     }
 
     QMap<QDateTime, GeoDataCoordinates>::const_iterator nextEntry = const_cast<const PointMap&>(pointMap).upperBound( when );
 
     // No tracked point happened before "when"
     if ( nextEntry == pointMap.constBegin() ) {
         qCDebug(DIGIKAM_MARBLE_LOG) << "No tracked point before " << when;
         return GeoDataCoordinates();
     }
 
     if ( nextEntry == pointMap.constEnd() ) {
         qCDebug(DIGIKAM_MARBLE_LOG) << "No track point after" << when;
         return GeoDataCoordinates();
     }
 
     QMap<QDateTime, GeoDataCoordinates>::const_iterator previousEntry = std::prev(nextEntry, 1);
     GeoDataCoordinates previousCoord = previousEntry.value();
 
     QDateTime previousWhen = previousEntry.key();
     QDateTime nextWhen = nextEntry.key();
     GeoDataCoordinates nextCoord = nextEntry.value();
 
     int interval = previousWhen.msecsTo( nextWhen );
     int position = previousWhen.msecsTo( when );
     qreal t = (qreal)position / (qreal)interval;
 
     return previousCoord.interpolate(nextCoord, t);
 }
 
 GeoDataCoordinates GeoDataTrack::coordinatesAt( int index ) const
 {
     Q_D(const GeoDataTrack);
     return d->m_coordinates.at(index);
 }
 
 void GeoDataTrack::addPoint( const QDateTime &when, const GeoDataCoordinates &coord )
 {
     detach();
 
     Q_D(GeoDataTrack);
     d->equalizeWhenSize();
     d->m_lineStringNeedsUpdate = true;
     int i=0;
     while (i < d->m_when.size()) {
         if (d->m_when.at(i) > when) {
             break;
         }
         ++i;
     }
     d->m_when.insert(i, when );
     d->m_coordinates.insert(i, coord );
 }
 
 void GeoDataTrack::appendCoordinates( const GeoDataCoordinates &coord )
 {
     detach();
 
     Q_D(GeoDataTrack);
     d->equalizeWhenSize();
     d->m_lineStringNeedsUpdate = true;
     d->m_coordinates.append(coord);
 }
 
 void GeoDataTrack::appendAltitude( qreal altitude )
 {
     detach();
 
     Q_D(GeoDataTrack);
     d->m_lineStringNeedsUpdate = true;
     Q_ASSERT(!d->m_coordinates.isEmpty());
     if (d->m_coordinates.isEmpty()) {
         return;
     }
     GeoDataCoordinates coordinates = d->m_coordinates.takeLast();
     coordinates.setAltitude( altitude );
     d->m_coordinates.append(coordinates);
 }
 
 void GeoDataTrack::appendWhen( const QDateTime &when )
 {
     detach();
 
     Q_D(GeoDataTrack);
     d->m_when.append(when);
 }
 
 void GeoDataTrack::clear()
 {
     detach();
 
     Q_D(GeoDataTrack);
     d->m_when.clear();
     d->m_coordinates.clear();
     d->m_lineStringNeedsUpdate = true;
 }
 
 void GeoDataTrack::removeBefore( const QDateTime &when )
 {
     detach();
 
     Q_D(GeoDataTrack);
     Q_ASSERT( d->m_coordinates.size() == d->m_when.size());
     if (d->m_when.isEmpty()) {
         return;
     }
     d->equalizeWhenSize();
 
     while (!d->m_when.isEmpty() && d->m_when.first() < when) {
         d->m_when.takeFirst();
         d->m_coordinates.takeFirst();
     }
 }
 
 void GeoDataTrack::removeAfter( const QDateTime &when )
 {
     detach();
 
     Q_D(GeoDataTrack);
     Q_ASSERT(d->m_coordinates.size() == d->m_when.size());
     if (d->m_when.isEmpty()) {
         return;
     }
     d->equalizeWhenSize();
     while (!d->m_when.isEmpty() && d->m_when.last() > when) {
         d->m_when.takeLast();
         d->m_coordinates.takeLast();
     }
 }
 
 const GeoDataLineString *GeoDataTrack::lineString() const
 {
     Q_D(const GeoDataTrack);
     if (d->m_lineStringNeedsUpdate) {
         d->m_lineString = GeoDataLineString();
         d->m_lineString.append( coordinatesList() );
         d->m_lineStringNeedsUpdate = false;
     }
     return &d->m_lineString;
 }
 
 GeoDataExtendedData& GeoDataTrack::extendedData()
 {
     detach();
 
     Q_D(GeoDataTrack);
     return d->m_extendedData;
 }
 
 const GeoDataExtendedData& GeoDataTrack::extendedData() const
 {
     Q_D(const GeoDataTrack);
     return d->m_extendedData;
 }
 
 void GeoDataTrack::setExtendedData( const GeoDataExtendedData& extendedData )
 {
     detach();
 
     Q_D(GeoDataTrack);
     d->m_extendedData = extendedData;
 }
 
 const GeoDataLatLonAltBox& GeoDataTrack::latLonAltBox() const
 {
     return lineString()->latLonAltBox();
 }
 
 //TODO
 void GeoDataTrack::pack( QDataStream& stream ) const
 {
     GeoDataGeometry::pack( stream );
 }
 //TODO
 void GeoDataTrack::unpack( QDataStream& stream )
 {
     GeoDataGeometry::unpack( stream );
 }
 
 }