private void CreateNonGifAnimationImage(bool isStaticPic)
{
this.DeletePreviousImage();
if (!string.IsNullOrEmpty(this.Source))
{
this.CreateImage(false);
this._image.Source = ImageSourceCache.GetOrCreateImageSource(this.Source, this.IsCache, isStaticPic);
}
}
private void CreateGifAnimation(MemoryStream memoryStream, bool cache)
{
try
{
this.DeletePreviousImage();
if (!base.HasContent)
{
this.CreateImage(true);
this._gifAnimation.Tag = this.Source;
this._gifAnimation.CreateGifAnimation(memoryStream);
if (cache && this.IsCache)
{
ImageSourceCache.SetMemoryStream(this.Source, memoryStream);
}
}
}
catch (Exception)
{
this.CreateNonGifAnimationImage(true);
}
}
private void CreateFromSourceString(string source)
{
this.DeletePreviousImage();
if (string.IsNullOrEmpty(source))
{
this.RaiseImageFailedEvent(new Exception("字符串为空"));
}
else
{
ImageSourceCache.ImageCache imageCache = ImageSourceCache.GetImageCache(this.Source);
if (imageCache != null)
{
if (imageCache.IsStaticPic || this.ForceStaticPic)
{
this.CreateNonGifAnimationImage(false);
return;
}
if (imageCache.MemoryStream != null)
{
this.CreateGifAnimation(imageCache.MemoryStream, false);
return;
}
}
Uri uri = new Uri(source, UriKind.RelativeOrAbsolute);
if (!this.ForceStaticPic && (source.Trim().ToUpper().EndsWith(".GIF") || this.ForceGifAnim))
{
try
{
if (!uri.IsAbsoluteUri)
{
this.GetGifStreamFromPack(uri);
}
else
{
string leftPart = uri.GetLeftPart(UriPartial.Scheme);
switch (leftPart)
{
case "http://":
case "ftp://":
this.GetGifStreamFromHttp(uri);
return;
}
if (leftPart == "file://")
{
using (FileStream stream = new FileStream(uri.LocalPath, FileMode.Open, FileAccess.Read))
{
this.ReadGifStreamSynch(stream);
stream.Close();
stream.Dispose();
return;
}
}
if (leftPart == "pack://")
{
this.GetGifStreamFromPack(uri);
}
else
{
this.CreateNonGifAnimationImage(true);
}
}
}
catch (Exception)
{
this.CreateNonGifAnimationImage(true);
}
}
else
{
this.CreateNonGifAnimationImage(false);
}
}
}