private void LoadVolume(IBackgroundTaskContext context)
{
try
{
ProgressTask mainTask = new ProgressTask();
mainTask.AddSubTask("BUILD", 90);
mainTask.AddSubTask("LAYOUT", 10);
context.ReportProgress(new BackgroundTaskProgress(mainTask.IntPercent, string.Format(SR.MessageInitializingMpr, mainTask.Progress)));
BackgroundTaskParams @params = (BackgroundTaskParams)context.UserState;
Volume volume = Volume.Create(@params.Frames,
delegate(int i, int count)
{
if (context.CancelRequested)
{
throw new BackgroundTaskCancelledException();
}
if (i == 0)
{
mainTask["BUILD"].AddSubTask("", count);
}
mainTask["BUILD"][""].Increment();
string message = string.Format(SR.MessageBuildingMprVolumeProgress, mainTask.Progress, i + 1, count, mainTask["BUILD"].Progress);
context.ReportProgress(new BackgroundTaskProgress(mainTask.IntPercent, message));
});
mainTask["BUILD"].MarkComplete();
context.ReportProgress(new BackgroundTaskProgress(mainTask.IntPercent, string.Format(SR.MessagePerformingMprWorkspaceLayout, mainTask.Progress)));
//call layout here b/c it could take a while
@params.SynchronizationContext.Send(delegate
{
_viewer = new MprViewerComponent(volume);
_viewer.Layout();
}, null);
mainTask["LAYOUT"].MarkComplete();
context.ReportProgress(new BackgroundTaskProgress(mainTask.IntPercent, string.Format(SR.MessageDone, mainTask.Progress)));
context.Complete();
}
catch (BackgroundTaskCancelledException)
{
context.Cancel();
}
catch (Exception ex)
{
context.Error(ex);
}
}
