public bool Serve(HttpContext context, ImageProviderBase imageProvider, bool cacheToDisk)
{
if (imageProvider == null)
return false;
using (MemoryStream memoryStream = new MemoryStream())
{
using (DziTile tile = new DziTile(AllTileDefaults.DziTileSize))
{
tile.Draw(imageProvider, Level, X, Y);
tile.Save(memoryStream, ImageFormat.Jpeg);
memoryStream.Position = 0; // Rewind the stream, ready for reading
memoryStream.WriteTo(context.Response.OutputStream);
context.Response.ContentType = "image/jpeg";
if (cacheToDisk)
CacheFile.Save(memoryStream, CachePath);
}
}
return true;
}
private bool UpdateLevel(int imageID, int level, int maxLevel, ImageProviderBase imageProvider)
{
ImageFormat fileFormat = (_fileFormat == "png" ? ImageFormat.Png : ImageFormat.Jpeg);
int subTileCount = MortonHelpers.LevelToSubTileCount(level, maxLevel);
try
{
if (_buildCollectionTiles)
{
int tileX, tileY, subTileX, subTileY;
MortonHelpers.MortonBreakdown(imageID, level, maxLevel, out tileX, out tileY, out subTileX, out subTileY);
int subTileSize = _tileSize / subTileCount;
string tilePath = GetTilePath(_fileFormat, level, tileX, tileY);
if (_missingTilesOnly && File.Exists(tilePath))
return false;
ImageProvider.FolderPrep(tilePath);
using (FileStream fileStream = new FileStream(tilePath, FileMode.OpenOrCreate, FileAccess.ReadWrite))
{
using (CollectionTile tile = new CollectionTile(_tileSize, subTileSize))
{
if (fileStream.Length > 0)
{
tile.Load(fileStream);
fileStream.Position = 0;
}
tile.Draw(imageProvider, subTileX * subTileSize, subTileY * subTileSize);
tile.Save(fileStream, fileFormat);
string publishedTilePath = GetPublishPathFromMasterPath(tilePath);
if (File.Exists(publishedTilePath))
File.Delete(publishedTilePath);
}
}
return true;
}
else
{
int dimension = subTileCount * _tileSize;
int numTilesX = (imageProvider.Size.Width - 1) / dimension;
int numTilesY = (imageProvider.Size.Height - 1) / dimension;
bool ok = false;
for (int tileX = 0; tileX <= numTilesX; tileX++)
{
for (int tileY = 0; tileY <= numTilesY; tileY++)
{
string tilePath = GetTilePath(_fileFormat, level, tileX, tileY);
if (_missingTilesOnly && File.Exists(tilePath))
continue;
ImageProvider.FolderPrep(tilePath);
using (FileStream fileStream = new FileStream(tilePath, FileMode.Create, FileAccess.Write))
{
using (DziTile tile = new DziTile(_tileSize))
{
tile.Draw(imageProvider, level, tileX, tileY);
tile.Save(fileStream, fileFormat);
}
}
ok |= true;
}
}
return ok;
}
}
catch (Exception ex)
{
ex.GetType();
}
return false;
}
