/// <summary>
/// This method processes the ProgressChanged event of the Store. This is raised by the
/// store on method calls that can take a long time to process, for example, SaveBookFiles.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The EventArgs containing the progress progress made so far.</param>
private void store_ProgressChanged(object sender, ProgressNotificationEventArgs e)
{
DoProgressChanged(sender, e);
}
/// <summary>
/// The Presenter will notify the View of progress during the File Open process.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Presenter_ProgressChanged(object sender, ProgressNotificationEventArgs e)
{
// Let the worker process know that there has been some progress. This will result
// in the ProgressChanged event from being raised.
_fileOpenBackgroundWorker.ReportProgress(Convert.ToInt32(e.PercentageProgress), e.ProgressMessage);
}
/// <summary>
/// This method is called whenever progress has been made in loading a file (notified by
/// progress changes made in the datacontext store and the package inspector).
/// The ApplicationPresenter can then weight the changes from the two sources and
/// update the main view for notifying the user of the progress.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The EventArgs containing the progress progress made so far.</param>
private void DoProgressChanged(object sender, ProgressNotificationEventArgs e)
{
double progress;
if(sender.GetType() == typeof(PackageInspector))
{
// For now assume the inspector is doing 10% of the (initial) total work
progress = e.PercentageProgress * 0.1;
}
else
{
// Assume that if the store is reporting progress then the Inspector has finished
// and we are on the final 90%
progress = 10 + e.PercentageProgress * 0.9;
}
// Still a couple of minor issues with calculating exact percentage
if(progress > 100)
{
progress = 100;
}
// Pass on overall progress to any subscribers of the presenter's progress
// (i.e. the View)
if(ProgressChanged != null)
{
string message = "Opening Book... " + progress + "%";
ProgressChanged(this, new ProgressNotificationEventArgs(progress, message));
}
}
