private void CalculateDownloadSize(Poi poi)
{
string text = "";
bool enableDownloadButton = false;
if (poi?.Id >= (long)PoiId.FIRST_VALID_ID || poi?.Id == (long)PoiId.CURRENT_LOCATION)
{
float size;
var newDistance = GetDownloadDistance();
if (_oldDedItem == null || newDistance > _oldDedItem.Distance)
{
var gpsLocation = new GpsLocation(poi.Longitude, poi.Latitude, poi.Altitude);
var etc = new ElevationTileCollection(gpsLocation, newDistance);
size = etc.GetSizeToDownload();
text = String.Format(Resources.GetText(Resource.String.DownloadED_ExpectedSizeDownload), $"{size:F1}");
enableDownloadButton = true;
}
else if (newDistance < _oldDedItem.Distance)
{
var location = new GpsLocation(_oldDedItem.Longitude, _oldDedItem.Latitude, 0);
var tilesToBeRemovedAll = ElevationTileCollection.GetTilesForRemoval(location, _oldDedItem.Distance, newDistance);
var tilesToBeRemovedUnique = ElevationTileCollection.GetUniqueTilesForRemoval(_oldDedItem.Id, _allElevationData, tilesToBeRemovedAll);
size = tilesToBeRemovedUnique.GetSize() / 1024f / 1024f;
text = String.Format(Resources.GetText(Resource.String.DownloadED_ExpectedSizeRemove), $"{size:F1}");
enableDownloadButton = true;
}
}
FindViewById <TextView>(Resource.Id.textViewDownloadSize).Text = text;
FindViewById <Button>(Resource.Id.buttonSave).Enabled = enableDownloadButton;
}
private void RemoveElevationData(DownloadedElevationData ded, int oldDedDistance)
{
var location = new GpsLocation(ded.Longitude, ded.Latitude, 0);
var tilesToBeRemovedAll = ElevationTileCollection.GetTilesForRemoval(location, oldDedDistance, ded.Distance);
var tilesToBeRemovedUnique = ElevationTileCollection.GetUniqueTilesForRemoval(ded.Id, _allElevationData, tilesToBeRemovedAll);
tilesToBeRemovedUnique.Remove();
var edd = new ElevationDataDownload(new GpsLocation(ded.Longitude, ded.Latitude, 0), ded.Distance);
ded.SizeInBytes = edd.GetSize();
AppContext.DownloadedElevationDataModel.UpdateItem(ded);
Finish();
}
