// All of these events originate on non-UI threads, so we have to Invoke them
void library_ProgessEvent(object sender, ProgressEventArgs e)
{
this.BeginInvoke(new MethodInvoker(delegate() {
if (e.Percentage == 0) {
this.olvSongs.EmptyListMsg = "Initializing library...";
this.SetMetaDataListContents();
} else
this.olvSongs.EmptyListMsg = String.Format("Loading: {0}%", e.Percentage);
}));
}
/// <summary>
/// Our song loader is a little closer to finishing
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void loader_ProgessEvent(object sender, ProgressEventArgs e)
{
this.OnProgressEvent(e);
}
void library_DoneEvent(object sender, ProgressEventArgs e)
{
this.BeginInvoke(new MethodInvoker(delegate() {
if (e.IsCancelled)
this.olvSongs.EmptyListMsg = "Loading was cancelled";
else
this.olvSongs.EmptyListMsg = "This library is empty";
this.olvSongs.SetObjects(library.Songs);
this.SetMetaDataListContents();
this.ConfigureAutoCompleteDetails();
this.EnableControls();
this.UpdateStatusText();
// Release the cache to save some resources
this.library.Cache = null;
GC.Collect();
}));
}
/// <summary>
/// Our song loader has finished. Remember the songs it found
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void loader_DoneEvent(object sender, ProgressEventArgs e)
{
// Stop listening for events before doing anything else
this.loader.ProgessEvent -= new EventHandler<ProgressEventArgs>(loader_ProgessEvent);
this.loader.DoneEvent -= new EventHandler<ProgressEventArgs>(loader_DoneEvent);
this.songs = this.loader.Songs;
this.OnDoneEvent(e);
this.Cache.SaveLyricsCache();
this.loader = null;
}
protected virtual void OnProgressEvent(ProgressEventArgs args)
{
if (this.ProgessEvent != null)
this.ProgessEvent(this, args);
}
/// <summary>
/// Our song loader is a little closer to finishing
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void loader_ProgessEvent(object sender, ProgressEventArgs e)
{
this.OnProgressEvent(e);
}
void bgw_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
if (e.Error != null) {
System.Diagnostics.Debug.WriteLine(e.Error.Message);
throw e.Error;
}
if (!e.Cancelled)
this.result = e.Result;
ProgressEventArgs args = new ProgressEventArgs();
args.Percentage = 100;
args.IsCancelled = e.Cancelled;
this.OnDoneEvent(args);
}
void bgw_ProgressChanged(object sender, ProgressChangedEventArgs e)
{
ProgressEventArgs args = new ProgressEventArgs();
args.Percentage = e.ProgressPercentage;
args.Message = e.UserState as String;
this.OnProgressEvent(args);
// Did the event handler cancel the process?
if (args.IsCancelled)
this.isCancelled = true;
if (this.isCancelled)
this.bgw.CancelAsync();
}
