/// <summary>
/// 下载图片
/// </summary>
public void DownloadImg()
{
if (PreFetcher.Fetcher.PreFetchedImg(img.PreviewUrl) != null)
{
preview.Source = PreFetcher.Fetcher.PreFetchedImg(img.PreviewUrl);
//preview.Source = BitmapDecoder.Create(PreFetcher.Fetcher.PreFetchedImg(img.PreUrl), BitmapCreateOptions.None, BitmapCacheOption.OnLoad).Frames[0];
}
else
{
try
{
req = System.Net.WebRequest.Create(img.PreviewUrl) as System.Net.HttpWebRequest;
req.Proxy = MainWindow.WebProxy;
req.UserAgent = "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)";
if (needReferer != null)
{
//req.Referer = img.PreUrl.Substring(0, img.PreUrl.IndexOf('/', 7) + 1);
req.Referer = needReferer;
}
//异步下载开始
req.BeginGetResponse(new AsyncCallback(RespCallback), req);
}
catch (Exception ex)
{
Program.Log(ex, "Start download preview failed");
StopLoadImg();
}
}
if (!isDetailSucc && img.DownloadDetail != null)
{
isRetrievingDetail = true;
chk.Text = "信息加载中...";
System.Threading.ThreadPool.QueueUserWorkItem(new System.Threading.WaitCallback((o) =>
{
try
{
img.DownloadDetail(img, MainWindow.WebProxy);
Dispatcher.Invoke(new VoidDel(() =>
{
LayoutRoot.IsEnabled = true;
ShowImgDetail();
isRetrievingDetail = false;
if (imgLoaded && ImgLoaded != null)
{
ImgLoaded(index, null);
}
}));
}
catch (Exception ex)
{
Program.Log(ex, "Download img detail failed");
Dispatcher.Invoke(new VoidDel(() =>
{
isRetrievingDetail = false;
canRetry = true;
chk.Text = "信息加载失败";
if (imgLoaded && ImgLoaded != null)
{
ImgLoaded(index, null);
}
}));
}
}));
}
}
