protected virtual string Resize(string id, Func <Image> factory, int width, int height)
{
var fileName = default(string);
if (FileMetaDataStore.Exists(PREFIX, id, out fileName))
{
return(fileName);
}
using (KeyLock.Lock(id))
{
if (FileMetaDataStore.Exists(PREFIX, id, out fileName))
{
return(fileName);
}
using (var image = new Bitmap(width, height))
{
using (var graphics = Graphics.FromImage(image))
{
graphics.SmoothingMode = SmoothingMode.HighQuality;
graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
graphics.PixelOffsetMode = PixelOffsetMode.HighQuality;
this.Resize(graphics, factory, width, height);
}
using (var stream = new MemoryStream())
{
image.Save(stream, ImageFormat.Png);
stream.Seek(0, SeekOrigin.Begin);
return(FileMetaDataStore.Write(PREFIX, id, stream));
}
}
}
}
protected virtual string Resize(string id, Func <Image> factory, int width, int height)
{
var fileName = default(string);
if (FileMetaDataStore.Exists(PREFIX, id, out fileName))
{
return(fileName);
}
//TODO: Setting throwOnTimeout = false so we ignore synchronization timeout.
//TODO: I think there exists a deadlock bug in KeyLock but I haven't been able to prove it.
using (KeyLock.Lock(id, TIMEOUT, false))
{
if (FileMetaDataStore.Exists(PREFIX, id, out fileName))
{
return(fileName);
}
using (var image = new Bitmap(width, height))
{
using (var graphics = Graphics.FromImage(image))
{
graphics.SmoothingMode = SmoothingMode.HighQuality;
graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
graphics.PixelOffsetMode = PixelOffsetMode.HighQuality;
this.Resize(graphics, factory, width, height);
}
using (var stream = new MemoryStream())
{
image.Save(stream, ImageFormat.Png);
stream.Seek(0, SeekOrigin.Begin);
return(FileMetaDataStore.Write(PREFIX, id, stream));
}
}
}
}
protected virtual void Save(string id, WaveFormGenerator.WaveFormGeneratorData data)
{
try
{
using (var stream = new MemoryStream())
{
Serializer.Instance.Write(stream, data);
stream.Seek(0, SeekOrigin.Begin);
FileMetaDataStore.Write(PREFIX, id, stream);
stream.Seek(0, SeekOrigin.Begin);
}
}
catch (Exception e)
{
Logger.Write(this, LogLevel.Warn, "Failed to save wave form: {0}", e.Message);
}
}
private ImageSource Render(LibraryHierarchyNode libraryHierarchyNode, DrawingVisual visual, int width, int height)
{
var target = new RenderTargetBitmap(width, height, DPIX, DPIY, PixelFormats.Pbgra32);
target.Render(visual);
var encoder = new PngBitmapEncoder();
encoder.Frames.Add(BitmapFrame.Create(target));
using (var stream = new MemoryStream())
{
encoder.Save(stream);
stream.Seek(0, SeekOrigin.Begin);
FileMetaDataStore.Write(PREFIX, this.GetImageId(libraryHierarchyNode, width, height), stream);
stream.Seek(0, SeekOrigin.Begin);
}
target.Freeze();
return(target);
}
