/// <summary>
/// 开始分析
/// </summary>
public override async Task Action()
{
try
{
DownloadHelper downloadHelper = new DownloadHelper();
while (!CancelTokenSource.IsCancellationRequested)
{
TaskSupervisor.DisposeInvalidTask();
if (WaitDownLoadImageUrlQueue.Count < 1)
{
Progress("[图片下载器]图片队列为空...");
await Task.Delay(1000);
continue;
}
string imageUrl = Dequeue();
if (!ExistImageUrlList.Contains(imageUrl))
{
Task task = new Task(() => { Progress("[图片下载器]正在下载图片URL:{0}\t保存路径为:{1}", imageUrl, downloadHelper.DownLoadImage(imageUrl, SaveFolder)); }, CancelTokenSource.Token);
bool result = TaskSupervisor.Add(task);
if (!result)
{
Progress("[图片下载器]下载队列已满,等待...", WaitDownLoadImageUrlQueue.Count);
await Task.Delay(1000);
WaitDownLoadImageUrlQueue.Enqueue(imageUrl);
continue;
}
ExistImageUrlList.Add(imageUrl);
}
}
TaskSupervisor.DisposeInvalidTask();
}
catch (Exception ex)
{
Progress("[图片下载器]发生异常：" + ex.ToString());
}
}
public override async Task Action()
{
CancelTokenSource = new CancellationTokenSource();
Progress("[图片裁剪器]开始处理...");
TaskSupervisor.Add(Task.Factory.StartNew(() =>
{
try
{
while (!CancelTokenSource.IsCancellationRequested)
{
TaskSupervisor.DisposeInvalidTask();
if (CuttingSettingQueue.Count < 1)
{
Task.Delay(1000);
continue;
}
CuttingSettingQueue.TryDequeue(out var waitProcessImg);
if (!CancelTokenSource.IsCancellationRequested)
{
if (!TaskSupervisor.Add(new Task(new Action <object>(x =>
{
if (!CancelTokenSource.IsCancellationRequested)
{
var cutterSetting = x as CutterSetting;
if (!CancelTokenSource.IsCancellationRequested)
{
Progress($"[图片裁剪器]正在裁剪图片：{cutterSetting.ImgPath}");
var savePath = cutterSetting.SavePath;
var imgExtensionName = Path.GetExtension(cutterSetting.ImgPath);
if (string.IsNullOrEmpty(savePath))
{
savePath = cutterSetting.ImgPath;
}
if (cutterSetting.ImgPath != savePath)
{
savePath = cutterSetting.ImgPath.Replace(cutterSetting.RootPath, savePath);
}
try
{
#region 裁剪
var cutImg = ImgHelper.CutImg(cutterSetting.ImgPath, cutterSetting.CutWidth, cutterSetting.CutHeight);
#endregion
#region 加水印
if (cutterSetting.IsSetWatermark)
{
switch (cutterSetting.WatermarkType)
{
case WatermarkTypeEnum.Image:
try
{
var watermarkImg = Image.FromFile(cutterSetting.WatermarkTextOrPath);
if (watermarkImg != null)
{
cutImg = Image.FromStream(WaterMarkHelper.AddWatermark(cutImg, imgExtensionName, watermarkImg, cutterSetting.WatermarkPosition));
}
}
catch (Exception ex)
{
Progress($"[图片裁剪器]发生异常：{ex}");
}
break;
case WatermarkTypeEnum.Text:
cutImg = Image.FromStream(WaterMarkHelper.AddWatermark(cutImg, imgExtensionName, cutterSetting.WatermarkTextOrPath, Color.Black, cutterSetting.WatermarkPosition));
break;
default:
break;
}
}
#endregion
if (cutImg != null)
{
switch (imgExtensionName)
{
case ".jpg":
ImageCodecInfo ici = ImgHelper.GetEncoderInfo("image/jpeg");
if (ici != null)
{
EncoderParameters ep = new EncoderParameters(1);
ep.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, (long)100);
cutImg.Save(savePath, ici, ep);
ep.Dispose();
ep = null;
ici = null;
}
else
{
cutImg.Save(savePath, ImageFormat.Jpeg);
}
break;
case ".bmp":
cutImg.Save(savePath, ImageFormat.Bmp);
break;
case ".gif":
cutImg.Save(savePath, ImageFormat.Gif);
break;
case ".png":
cutImg.Save(savePath, ImageFormat.Png);
break;
default:
cutImg.Save(savePath, ImageFormat.Jpeg);
break;
}
CutterProgress(TotalCount - CuttingSettingQueue.Count);
}
else
{
Progress($"[图片裁剪器][{cutterSetting.ImgPath}]裁剪时发生未知错误，未能实施裁剪");
CuttingSettingQueue.Enqueue(cutterSetting);
}
cutImg.Dispose();
}
catch (Exception ex)
{
Progress($"[图片裁剪器]发生异常：{ex}");
}
}
}
else
{
Thread.CurrentThread.Abort();
}
}), waitProcessImg, CancelTokenSource.Token)))
{
CuttingSettingQueue.Enqueue(waitProcessImg);
}
}
else
{
Thread.CurrentThread.Abort();
}
TaskSupervisor.DisposeInvalidTask();
}
}
catch (Exception ex)
{
Progress($"[图片裁剪器]发生异常：{ex}");
}
}, CancelTokenSource.Token));
}
/// <summary>
/// 行动！！
/// </summary>
/// <param name="url">原始URL</param>
/// <param name="maxTaskNum">最大任务数量</param>
public override async Task Action()
{
CancelTokenSource = new CancellationTokenSource();
TaskSupervisor.Add(Task.Factory.StartNew(() => AnalysisBehavior.Action(), CancelTokenSource.Token));
TaskSupervisor.Add(Task.Factory.StartNew(() => ImgDownloadBehavior.Action(), CancelTokenSource.Token));
}