private void ItemOnImageLoaded(ImageControl obj)
{
ImageLoadingPool.Remove(obj);
if (ImageLoadingPool.Count == 0) // all image loaded
{
App.ShowMessage("图片加载完毕", 1);
}
else
{
var remain = ImageLoadingPool.Count + ImageWaitForLoadingPool.Count;
App.ShowMessage($"剩余 {remain} 张图片等待加载", 1);
}
if (ImageWaitForLoadingPool.Count > 0)
{
var item = ImageWaitForLoadingPool[0];
ImageWaitForLoadingPool.Remove(item);
ImageLoadingPool.Add(item);
item.ImageLoadEnd += ItemOnImageLoaded;
var unused = item.LoadImageAsync();
}
}
public void LoadImages(ImageItems items)
{
ResetVisual();
foreach (var item in items)
{
var itemctrl = new ImageControl(Settings, item);
itemctrl.DownloadButton.Click += (sender, args)
=> ImageItemDownloadButtonClicked?.Invoke(itemctrl.ImageItem, itemctrl.PreviewImage.Source);
itemctrl.MouseEnter += (sender, args) => MouseOnImageControl = itemctrl;
itemctrl.ImageCheckBox.Checked += (sender, args) => SelectedImageControls.Add(itemctrl);
itemctrl.ImageCheckBox.Unchecked += (sender, args) => SelectedImageControls.Remove(itemctrl);
ImageItemsWrapPanel.Children.Add(itemctrl);
if (ImageLoadingPool.Count < Settings.MaxOnLoadingImageCount)
{
ImageLoadingPool.Add(itemctrl);
}
else
{
ImageWaitForLoadingPool.Add(itemctrl);
}
}
}