/// <summary>
/// 消息改变时
/// </summary>
/// <param name="d">母控件</param>
/// <param name="e">更改相关值</param>
private static void OnBubbleMsgChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
AsyncImageControl imagecontrol = (AsyncImageControl)d;
if (e.NewValue != null)
{
#region Download Image File
string uri = (string)e.NewValue;
try
{
if (uri.Contains("http"))//if it's Web url
{
//get info about the path
string localpath = Applicate.LocalConfigData.ChatDownloadPath;
ChatBubbleItemModel msg = imagecontrol.Tag as ChatBubbleItemModel;
string filename = msg.fileName.Substring(
msg.fileName.LastIndexOf('/') + 1,
msg.fileName.Length - msg.fileName.LastIndexOf('/') - 1
);
var localfile = localpath + filename;
if (File.Exists(localfile))//if file exists, fill the image of the border
{
try
{
var imguri = new Uri(localfile);
imagecontrol.Imgborder.Source = new BitmapImage(imguri);
imagecontrol.transitioner.SelectedIndex = 1;
imagecontrol.MouseLeftButtonUp += (sen, res) =>
{
var photoView = new PictureWindow().GetPhotoView(localfile);
photoView.Show();
//photoView.Activate();
//photoView.Focus();
};
}
catch (Exception ex)
{
ConsoleLog.Output("显示图片cc" + ex.Message);
}
}
else//if not exists
{
using (WebClient web = new WebClient())
{
try
{
//when the progress changed , set the value of the progressbar
web.DownloadProgressChanged += (s, ev) =>
{
imagecontrol.ImageProgress.Value = ev.ProgressPercentage;
};
//When download completed, fill the image of the border
web.DownloadFileCompleted += (s, ev) =>
{
if (ev.Error == null)
{
var imguri = new Uri(localfile);
imagecontrol.Imgborder.Source = new BitmapImage(imguri);
imagecontrol.transitioner.SelectedIndex = 1;
imagecontrol.BtnDownload.Visibility = Visibility.Collapsed;//隐藏下载按钮
imagecontrol.MouseLeftButtonUp += (sen, res) =>
{
var photoView = new PictureWindow().GetPhotoView(localfile);
photoView.Show();
photoView.Activate();
photoView.Focus();
};
web.Dispose();//Dispose the WebClient
}
else
{
ConsoleLog.Output("图片下载失败");
}
};
//Start download image async
web.DownloadFileAsync(new Uri(uri), localfile);
}
catch (Exception ex)
{
ConsoleLog.Output("AsyncImageControl--GetImage--Error" + ex.Message);
imagecontrol.Dispatcher.Invoke(() =>
{
imagecontrol.BtnDownload.Visibility = Visibility.Visible;//显示下载按钮
});
}
}
}
}
#endregion
else//if it's local path
{
if (File.Exists(uri))
{
imagecontrol.Imgborder.Source = new BitmapImage(new Uri(uri));
imagecontrol.transitioner.SelectedIndex = 1;
imagecontrol.MouseLeftButtonUp += (sen, res) =>
{
var photoView = new PictureWindow().GetPhotoView(uri);
photoView.Show();
photoView.Activate();
photoView.Focus();
};
}
}
}
catch (Exception ex)
{
ConsoleLog.Output("Download Aaudio Error:;;", ex);
}
}
else
{
return;
}
}
