private void ReadImageProperties()
{
this.HasCapabilities &= ImagePropertyProvider.TagCapability.Thumbnail;
this.FrameCount = -1;
this.BPP = -1;
try
{
PropertyItem[] propertyItems = null;
using (Stream stream = this._FileInfo.OpenRead())
{
using (Image image = Image.FromStream(stream, false, false))
{
propertyItems = image.PropertyItems;
this.ImageSize = image.Size;
this.HasCapabilities |= ImagePropertyProvider.TagCapability.Size;
this.BPP = Image.GetPixelFormatSize(image.PixelFormat);
this.HasCapabilities |= ImagePropertyProvider.TagCapability.BPP;
switch (image.PixelFormat)
{
case PixelFormat.Format16bppRgb555:
case PixelFormat.Format16bppRgb565:
case PixelFormat.Format24bppRgb:
case PixelFormat.Format32bppRgb:
case PixelFormat.Format16bppArgb1555:
case PixelFormat.Format32bppPArgb:
case PixelFormat.Format32bppArgb:
case PixelFormat.Format64bppArgb:
case PixelFormat.Format48bppRgb:
case PixelFormat.Format64bppPArgb:
this.Space = ColorSpace.RGB;
break;
case PixelFormat.Indexed:
case PixelFormat.Format4bppIndexed:
case PixelFormat.Format8bppIndexed:
case PixelFormat.Format1bppIndexed:
this.Space = ColorSpace.Indexed;
break;
case PixelFormat.Format16bppGrayScale:
this.Space = ColorSpace.Grayscale;
break;
}
if ((image.Flags & 0x10) > 0)
{
this.Space = ColorSpace.RGB;
}
else if ((image.Flags & 0x20) > 0)
{
this.Space = ColorSpace.CMYK;
}
else if ((image.Flags & 0x40) > 0)
{
this.Space = ColorSpace.Grayscale;
}
else if ((image.Flags & 0x80) > 0)
{
this.Space = ColorSpace.YCBCR;
}
else if ((image.Flags & 0x100) > 0)
{
this.Space = ColorSpace.YCCK;
}
if (image.RawFormat == ImageFormat.Gif)
{
this.Space = ColorSpace.Indexed;
}
this.HasCapabilities |= ImagePropertyProvider.TagCapability.ColorSpace;
if ((image.Flags & 0x1000) > 0)
{
this.DPI = new Size((int) image.HorizontalResolution, (int) image.VerticalResolution);
this.HasCapabilities |= ImagePropertyProvider.TagCapability.DPI;
}
foreach (Guid guid in image.FrameDimensionsList)
{
if (guid == FrameDimension.Page.Guid)
{
this.FrameCount = image.GetFrameCount(FrameDimension.Page);
}
else if (guid == FrameDimension.Resolution.Guid)
{
this.FrameCount = image.GetFrameCount(FrameDimension.Resolution);
}
else if (guid == FrameDimension.Time.Guid)
{
this.FrameCount = image.GetFrameCount(FrameDimension.Time);
}
if (this.FrameCount > 1)
{
goto Label_036D;
}
}
}
}
Label_036D:
if (this.FrameCount > 0)
{
this.HasCapabilities |= ImagePropertyProvider.TagCapability.Frames;
}
if (propertyItems.Length > 0)
{
this.ImagePropertyList = new Dictionary<int, object>();
foreach (PropertyItem item in propertyItems)
{
int num;
if (ImagePropertyProvider.PropertyTagMap.TryGetValue((PropertyTag) item.Id, out num))
{
this.ImagePropertyList.Add(num, item);
this.HasCapabilities |= ImagePropertyProvider.TagCapability.Properties;
}
}
}
}
catch (Exception exception)
{
PropertyProviderManager.ProviderTrace.TraceException(TraceEventType.Error, exception);
}
}
private Image ReadImageThumbnail(ref Size maxThumbnailSize)
{
Image target = null;
Stream stream = null;
Image image = null;
if ((this.StoredThumbnail != null) && this.StoredThumbnail.IsAlive)
{
target = (Image) this.StoredThumbnail.Target;
}
if ((target == null) || (this.StoredThumbnailSize != maxThumbnailSize))
{
try
{
stream = this._FileInfo.OpenRead();
image = Image.FromStream(stream, true);
if (((image.Width <= maxThumbnailSize.Width) && (image.Height <= maxThumbnailSize.Height)) && ImageAnimator.CanAnimate(image))
{
this.StoredThumbnailStream = new WeakReference(stream);
target = image;
}
else
{
try
{
using (MemoryStream stream2 = new MemoryStream(image.GetPropertyItem(0x501b).Value))
{
using (Image image3 = Image.FromStream(stream2))
{
if (ImagePropertyProvider.KeepThumbnailSize || ((image3.Width <= maxThumbnailSize.Width) && (image3.Height <= maxThumbnailSize.Height)))
{
target = new Bitmap(image3);
}
else
{
target = new Bitmap(image3, ImageHelper.GetThumbnailSize(image3.Size, maxThumbnailSize));
}
}
}
}
catch
{
}
if (target == null)
{
if ((image.Width <= maxThumbnailSize.Width) && (image.Height <= maxThumbnailSize.Height))
{
target = new Bitmap(image);
}
else
{
target = new Bitmap(image, ImageHelper.GetThumbnailSize(image.Size, maxThumbnailSize));
}
}
}
RotateFlipType rotateFlipType = (RotateFlipType) Convert.ToInt32(PropertyTagHelper.GetPropertyValue(image, PropertyTag.Orientation));
if (rotateFlipType != RotateFlipType.RotateNoneFlipNone)
{
target.RotateFlip(rotateFlipType);
}
this.StoredThumbnail = new WeakReference(target);
this.StoredThumbnailSize = maxThumbnailSize;
}
catch (Exception exception)
{
PropertyProviderManager.ProviderTrace.TraceException(TraceEventType.Error, exception);
this.HasCapabilities &= ~ImagePropertyProvider.TagCapability.Thumbnail;
base.ResetAvailableSet();
}
finally
{
if ((stream != null) && (image != target))
{
stream.Dispose();
}
if ((image != null) && (image != target))
{
image.Dispose();
}
}
}
return target;
}
public ImagePropertyBag(FileInfo fileInfo, ImagePropertyProvider.TagCapability capabilities)
{
this._FileInfo = fileInfo;
this.HasCapabilities = capabilities | ~(ImagePropertyProvider.TagCapability.Exif | ImagePropertyProvider.TagCapability.Properties | ImagePropertyProvider.TagCapability.Frames);
}
