private List <DownloadLevelTile> GetDownloadLevelTiles(DownloadLevelCfg downloadLevelCfg)
{
int count = downloadLevelCfg.TileGPoints.Count;
List <DownloadLevelTile> downloadLevelTiles = new List <DownloadLevelTile>(count);
for (int i = 0; i < count; ++i)
{
DownloadLevelTile downloadLevel = new DownloadLevelTile(downloadLevelCfg.TileGPoints[i], downloadLevelCfg.ZoomLevel);
downloadLevelTiles.Add(downloadLevel);
}
return(downloadLevelTiles);
}
void backgroundWorker_DoWork(object sender, DoWorkEventArgs e)
{
try
{
BackgroundWorker worker = sender as BackgroundWorker;
int minzoom = this.mapProvider.MinZoom;
int maxzoom = this.mapProvider.MaxZoom.Value;
for (int z = minzoom; z <= maxzoom; ++z)
{
GPoint topLeft = mapProvider.Projection.FromPixelToTileXY(mapProvider.Projection.FromLatLngToPixel(rectLatLng.LocationTopLeft, z));
GPoint rightBottom = mapProvider.Projection.FromPixelToTileXY(mapProvider.Projection.FromLatLngToPixel(rectLatLng.LocationRightBottom, z));
long begin_x = topLeft.X;
long end_x = rightBottom.X;
long begin_y = topLeft.Y;
long end_y = rightBottom.Y;
long levelRow = (end_x - begin_x + 1);
long levelCol = (end_y - begin_y + 1);
long currentZoomTiles = levelRow * levelCol;
DownloadLevelCfg downloadLevelCfg = new DownloadLevelCfg();
downloadLevelCfg.TopLeft = topLeft;
downloadLevelCfg.RightBottom = rightBottom;
downloadLevelCfg.IsChecked = false;
downloadLevelCfg.ZoomLevel = z;
downloadLevelCfg.ZoomLevelCol = levelCol;
downloadLevelCfg.ZoomLevelRow = levelRow;
downloadLevelCfg.PreCount = currentZoomTiles;
long sizeMb = currentZoomTiles * 20 / 1024;
if (sizeMb > 0)
{
downloadLevelCfg.PreSize = string.Format("{0}MB", sizeMb);
}
else
{
downloadLevelCfg.PreSize = string.Format("{0}KB", currentZoomTiles * 20);
}
downloadLevelCfgs.Add(downloadLevelCfg);
//int progress = (z - minzoom + 1) * 100 / (maxzoom - minzoom + 1);
//worker.ReportProgress(progress);
}
}
catch (Exception ex)
{
log.Error(ex);
}
}