private void DownloadImage()
{
while (true)
{
ImageQueueInfo t = null;
lock (this.Stacks)
{
if (this.Stacks.Count > 0)
{
t = this.Stacks.Dequeue();
}
}
if (t != null)
{
if (!File.Exists(t.FullName))
{
WebHelper.DownImage(t.Url, t.FullName);
}
}
if (this.Stacks.Count > 0)
{
continue;
}
autoEvent.WaitOne();
}
}
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);
ImageSource image = null;
try
{
if ("file".Equals(uri.Scheme, StringComparison.CurrentCultureIgnoreCase))
{
image = Util.GetBitmapImageForBackUp(t.url);
}
if (image != null)
{
if (image.CanFreeze)
{
image.Freeze();
}
t.image.Dispatcher.BeginInvoke(new Action <ImageQueueInfo, ImageSource>((i, bmp) =>
{
if (ImageQueue.OnComplate != null)
{
ImageQueue.OnComplate(i.image, i.url, image);
}
}), new Object[] { t, image });
}
}
catch (Exception e)
{
continue;
}
}
if (ImageQueue.Stacks.Count > 0)
{
continue;
}
autoEvent.WaitOne();
}
}
/// <summary>
///
/// </summary>
private static void DownloadImage()
{
while (true)
{
ImageQueueInfo t = null;
lock (Stacks)
{
if (Stacks.Count > 0)
{
t = 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
using (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))
{
if (!File.Exists(t.url))
{
continue;
}
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) =>
{
OnComplate?.Invoke(i.image, i.url, bmp);
}), new object[] { t, image });
}
}
catch (Exception e)
{
MessageBox.Show(e.Message);
continue;
}
}
if (Stacks.Count > 0)
{
continue;
}
autoEvent.WaitOne();
}
}
private static async 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
var service = new PhotoImageService();
Byte[] imgData = await service.Download(t.url);
if (null != imgData)
{
using (var ms = new MemoryStream(imgData))
{
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();
}
await t.image.Dispatcher.BeginInvoke(new Action <ImageQueueInfo, BitmapImage>((i, bmp) =>
{
if (ImageQueue.OnComplete != null)
{
ImageQueue.OnComplete(i.image, i.url, bmp);
}
}), new Object[] { t, image });
}
}
catch (Exception e)
{
System.Windows.MessageBox.Show(e.Message);
continue;
}
}
if (ImageQueue.Stacks.Count > 0)
{
continue;
}
autoEvent.WaitOne();
}
}
private void Monitor()
{
ThreadPool.SetMinThreads(1, 1);
ThreadPool.SetMaxThreads(4, 4);
while (true)
{
ImageQueueInfo t = null;
lock (this.Stacks)
{
if (this.Stacks.Count > 0)
{
t = this.Stacks.Dequeue();
}
}
if (t != null)
{
switch (t.State)
{
case TaskState.None:
ThreadPool.QueueUserWorkItem(new WaitCallback(DownloadImage), t);
break;
case TaskState.Complate:
if (this.OnComplate != null && t.BitmapImage != null)
{
System.Windows.FrameworkElement ele = t.Image;
if (ele == null)
{
ele = this.pElement;
}
if (ele != null)
{
ele.Dispatcher.BeginInvoke(this.OnComplate, new Object[] { t.Image, t.BitmapImage, t.ImgInfo });
}
}
break;
case TaskState.Error:
if (this.OnError != null)
{
System.Windows.FrameworkElement ele = t.Image;
if (ele == null)
{
ele = this.pElement;
}
if (ele != null)
{
ele.Dispatcher.BeginInvoke(this.OnError, new Object[] { t.Image, t.Error });
}
}
break;
}
}
if (this.Stacks.Count > 0)
{
continue;
}
autoEvent.WaitOne();
}
}
/// <summary>
/// 下载方法
/// </summary>
private void DownloadImage()
{
while (true)
{
ImageQueueInfo t = null;
lock (this.Stacks)
{
if (this.Stacks.Count > 0)
{
t = this.Stacks.Dequeue();
}
}
if (t != null)
{
Uri uri = new Uri(t.Url);
BitmapImage bImage = null;
try
{
bool local = false;
string fileFullName = string.Empty;
if (!string.IsNullOrEmpty(this.CachePath))
{
fileFullName = Path.Combine(this.CachePath, t.Name);
local = File.Exists(fileFullName);
}
if (!local && "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)))
{
// 是否设置了缓存路径，有就先保存到缓存目录
if (!string.IsNullOrEmpty(this.CachePath))
{
System.Drawing.Image image = System.Drawing.Image.FromStream(ms);
if (image != null)
{
if (!File.Exists(fileFullName))
{
image.Save(fileFullName);
}
image.Dispose();
local = true;
}
}
// 是否有完成后的委托，有就获取BitmapImage
else if (this.OnComplate != null)
{
bImage = new BitmapImage();
bImage.BeginInit();
bImage.CacheOption = BitmapCacheOption.OnLoad;
bImage.StreamSource = ms;
bImage.EndInit();
}
}
}
// 从本地获取
if (local && this.OnComplate != null)
{
while (WinApi.FileIsOccupy(fileFullName))
{
Thread.Sleep(500);
}
using (var fs = new FileStream(fileFullName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
bImage = new BitmapImage();
bImage.BeginInit();
bImage.CacheOption = BitmapCacheOption.OnLoad;
bImage.StreamSource = fs;
bImage.EndInit();
}
}
if (bImage != null && this.OnComplate != null && t.image != null)
{
if (bImage.CanFreeze)
{
bImage.Freeze();
}
t.image.Dispatcher.BeginInvoke(new Action <Image, BitmapImage, string, ImgInfo>((image, bmp, name, imgInfo) =>
{
image.Tag = name;
this.OnComplate(bmp, imgInfo);
}), new Object[] { t.image, bImage, t.Name, t.ImgInfo });
}
}
catch (Exception e)
{
LogHelper.WriteLog(e.Message, EnumLogLevel.Error);
if (this.OnError != null)
{
t.image.Dispatcher.BeginInvoke(new Action <Exception>((ex) =>
{
this.OnError(ex);
}), new Object[] { e });
}
}
}
if (this.Stacks.Count > 0)
{
continue;
}
autoEvent.WaitOne();
}
}
private static void DownloadImage()
{
while (true)
{
ImageQueueInfo t = null;
lock (ImageQueue.Stacks)
{
if (ImageQueue.Stacks.Count > 0)
{
t = ImageQueue.Stacks.Dequeue();
}
}
if (t != null)
{
try
{
BitmapImage image = null;
if (t.localImage)
{
//image = new BitmapImage(new Uri("Resources/头像2.png", UriKind.Relative));
string path = "";
if (t.resType == ResType.Doc.GetDBCode())
{
path = @"\Resources\video_img.png";
}
else if (t.resType == ResType.Vedio.GetDBCode())
{
path = @"\Resources\book_img.png";
}
else if (t.resType == ResType.Web.GetDBCode())
{
path = @"\Resources\web_img.png";
}
using (var fs = new FileStream(System.AppDomain.CurrentDomain.BaseDirectory + path, FileMode.Open))
{
image = new BitmapImage();
image.BeginInit();
image.CacheOption = BitmapCacheOption.OnLoad;
image.StreamSource = fs;
image.EndInit();
}
}
else
{
Uri uri = new Uri(t.url);
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) =>
{
if (ImageQueue.OnComplate != null)
{
ImageQueue.OnComplate(i.image, i.url, bmp, i.title, i.resKey);
}
}), new Object[] { t, image });
}
}
catch (Exception e)
{
System.Windows.MessageBox.Show(e.Message);
continue;
}
}
if (ImageQueue.Stacks.Count > 0)
{
continue;
}
autoEvent.WaitOne();
}
}
