public static void SetDataContainer(DataContainer container)
{
TimetableStructure.SetData(container.TimetableStructure);
App.Data.SetFromContainer(container);
}
public static void LoadData(string fpath, Action <RunWorkerCompletedEventArgs> done = null, Action <RunWorkerCompletedEventArgs> onCancel = null,
Action <RunWorkerCompletedEventArgs> exception = null, Window owner = null, bool save = true)
{
BackgroundWorker worker = new BackgroundWorker()
{
WorkerReportsProgress = true,
WorkerSupportsCancellation = true
};
worker.Dispose(); //Doesn't do anything
Application.Current.Dispatcher.Invoke(() =>
{
string newPath = null;
LoadingDialog box = new LoadingDialog("Loading...")
{
Owner = owner
};
SavingMode?mode = null;
long skip = 0;
MemoryStream mstream = null;
BinaryReader reader = null;
worker.DoWork += delegate(object sender, DoWorkEventArgs e)
{
if (!File.Exists(fpath))
{
VisualHelpers.ShowErrorBox($"File path {fpath} does not exist.", "File not found!");
RecentFilesRemove(fpath);
e.Result = new FileNotFoundException();
return;
}
mstream = new MemoryStream(File.ReadAllBytes(fpath));
reader = new BinaryReader(mstream);
mode = (SavingMode)reader.ReadInt32();
skip = mstream.Position;
if (mode == SavingMode.Backup)
{
if (!save)
{
VisualHelpers.ShowErrorBox("Backup files cannot be used for this function. Please restore it first.");
e.Cancel = true;
return;
}
newPath = SaveFileDialogHelper("Restore Backup");
if (newPath == null)
{
e.Cancel = true;
return;
}
_ = reader.ReadString();
skip = mstream.Position;
}
e.Result = Loading.StartLoad(reader, Version.Parse(reader.ReadString()), worker, e);
if (worker.CancellationPending)
{
e.Cancel = true;
}
};
worker.ProgressChanged += delegate(object sender, ProgressChangedEventArgs e)
{
box.pbProgressBar.Value = e.ProgressPercentage;
box.tbTextBlock.Text = (string)e.UserState;
};
worker.RunWorkerCompleted += delegate(object sender, RunWorkerCompletedEventArgs e)
{
box.Close();
mstream?.Dispose();
reader?.Dispose();
if (e.Cancelled)
{
onCancel?.Invoke(e);
return;
}
if (e.Result is Exception)
{
exception?.Invoke(e);
return;
}
if (e.Error != null)
{
VisualHelpers.ShowErrorBox($"A {e.Error.GetType().Name} error occured: {e.Error.Message}");
return;
}
if (save)
{
DataContainer data = (DataContainer)e.Result;
SetDataContainer(data);
App.Data.UpdateSave();
RegisterOpenFile(mode == SavingMode.Normal ? fpath : newPath);
using (FileStream stream = new FileStream(fpath, FileMode.Open))
{
stream.Seek(skip, SeekOrigin.Begin);
if (mode == SavingMode.Backup)
{
RestoreBackup(stream, newPath);
}
}
if (mode == SavingMode.Backup)
{
File.Delete(fpath);
}
}
done?.Invoke(e);
};
box.Show();
worker.RunWorkerAsync();
});
}
