void PositionSource::updatePosition()
{
if ( m_marbleModel ) {
bool const hasPosition = m_marbleModel->positionTracking()->status() == Marble::PositionProviderStatusAvailable;
if ( hasPosition ) {
Marble::GeoDataCoordinates position = m_marbleModel->positionTracking()->currentLocation();
m_position.setLongitude( position.longitude( Marble::GeoDataCoordinates::Degree ) );
m_position.setLatitude( position.latitude( Marble::GeoDataCoordinates::Degree ) );
m_position.setAltitude( position.altitude() );
}
m_speed = m_marbleModel->positionTracking()->speed() * Marble::METER2KM / Marble::SEC2HOUR;
emit speedChanged();
if ( hasPosition != m_hasPosition ) {
m_hasPosition = hasPosition;
emit hasPositionChanged();
}
if ( hasPosition ) {
emit positionChanged();
}
}
}
void AbstractDataPlugin::handleViewportChange( const ViewportParams *viewport )
{
QList<AbstractDataPluginItem*> orphane = d->m_delegateInstances.keys();
QList<AbstractDataPluginItem*> const items = d->m_model->items( viewport, numberOfItems() );
foreach( AbstractDataPluginItem* item, items ) {
qreal x, y;
Marble::GeoDataCoordinates const coordinates = item->coordinate();
bool const visible = viewport->screenCoordinates( coordinates.longitude(), coordinates.latitude(), x, y );
if ( !d->m_delegateInstances.contains( item ) ) {
if ( !visible ) {
// We don't have, but don't need it either. Shouldn't happen though as the model checks for it already.
continue;
}
// Create a new QML object instance using the delegate as the factory. The original
// data plugin item is set as the context object, i.e. all its properties are available
// to QML directly with their names
QQmlContext *context = new QQmlContext( qmlContext( d->m_delegate ) );
context->setContextObject( item );
QList<QByteArray> const dynamicProperties = item->dynamicPropertyNames();
foreach( const QByteArray &property, dynamicProperties ) {
context->setContextProperty( property, item->property( property ) );
}
QObject* component = d->m_delegate->create( context );
QQuickItem* newItem = qobject_cast<QQuickItem*>( component );
QGraphicsItem* graphicsItem = qobject_cast<QGraphicsItem*>( component );
if ( graphicsItem && newItem ) {
graphicsItem->setParentItem( d->m_delegateParent );
}
if ( newItem ) {
d->m_delegateInstances[item] = newItem;
} else {
mDebug() << "Failed to create delegate";
continue;
}
} else if ( !visible ) {
void Tracking::updatePositionMarker()
{
if ( m_marbleQuickItem && m_positionMarker && m_positionMarkerType == Circle ) {
Coordinate* position = 0;
bool visible = (m_marbleQuickItem->model()->planetId() == QLatin1String("earth"));
if ( m_positionSource && m_positionSource->hasPosition() ) {
position = m_positionSource->position();
} else if ( hasLastKnownPosition() ) {
position = lastKnownPosition();
} else {
visible = false;
}
qreal x(0), y(0);
if ( position ) {
Marble::GeoDataCoordinates const pos( position->longitude(), position->latitude(), 0.0, GeoDataCoordinates::Degree );
visible = visible && m_marbleQuickItem->map()->viewport()->screenCoordinates( pos.longitude(), pos.latitude(), x, y );
QQuickItem* item = qobject_cast<QQuickItem*>( m_positionMarker );
if ( item ) {
item->setVisible( visible );
if ( visible ) {
item->setX( x - item->width() / 2.0 );
item->setY( y - item->height() / 2.0 );
}
}
}
} else if ( m_positionMarkerType != Circle ) {
QQuickItem* item = qobject_cast<QQuickItem*>( m_positionMarker );
if ( item ) {
item->setVisible( false );
}
}
}