public void GetAverageColorByLocalFile()
{
singleClassForPage o = SelectedPreview;
string localName = "";
if (GlobalImageList.instance.ImageList.Count > 0 && o != null)
{
localName = GlobalImageList.instance.ImageList.Where(j => j.Item1 == ImageSave.GetFileName(o.Image_url)).LastOrDefault().Item2;
}
try
{
BitmapImage bit = new BitmapImage(new Uri(localName, UriKind.RelativeOrAbsolute));
SolidColorBrush s = GetAverageColor(bit);
SelectedPreview.BackGround = s;
}
catch
{
}
}
private static void DownloadImage()
{
while (true)
{
ImageQueueInfo t = null;
lock (ImageQueue.Stacks)
{
if (ImageQueue.Stacks.Count > 0)
{
t = ImageQueue.Stacks.Dequeue();
}
}
if (t != null)
{
Uri uri = new Uri(t.url);
BitmapImage image = null;
try
{
if ("http".Equals(uri.Scheme, StringComparison.CurrentCultureIgnoreCase))
{
//如果是HTTP下载文件
WebClient wc = new WebClient();
using (var ms = new MemoryStream(wc.DownloadData(uri)))
{
image = new BitmapImage();
image.BeginInit();
image.CacheOption = BitmapCacheOption.OnLoad;
image.StreamSource = ms;
image.EndInit();
}
}
else if ("file".Equals(uri.Scheme, StringComparison.CurrentCultureIgnoreCase))
{
using (var fs = new FileStream(t.url, FileMode.Open))
{
image = new BitmapImage();
image.BeginInit();
image.CacheOption = BitmapCacheOption.OnLoad;
image.StreamSource = fs;
image.EndInit();
}
}
if (image != null)
{
if (image.CanFreeze)
{
image.Freeze();
}
t.image.Dispatcher.BeginInvoke(new Action <ImageQueueInfo, BitmapImage>((i, bmp) =>
{
ImageQueue.OnComplate?.Invoke(i.image, i.url, bmp);
}), new Object[] { t, image });
ImageSave.Save(t.url, image);
}
}
catch (Exception e)
{
continue;
}
}
if (ImageQueue.Stacks.Count > 0)
{
continue;
}
autoEvent.WaitOne();
}
}