private async void SendSysExFile_Click(object sender, RoutedEventArgs e)
{
CloseAllTips();
// validate the user-entered parameters
uint transferDelayBetweenBuffers = 0;
if ((!uint.TryParse(EnteredTransferDelay.Text, out transferDelayBetweenBuffers)) || transferDelayBetweenBuffers < 0)
{
var dlg = new MessageDialog("For the send delay, please enter a positive whole number. This is the delay between buffers sent over MIDI.");
await dlg.ShowAsync();
return;
}
// validate, open the port, and then send the file
if (_inputFile != null)
{
if (_outputPortDeviceInformation != null)
{
// open the MIDI port
var outputPort = await MidiOutPort.FromIdAsync(_outputPortDeviceInformation.Id);
if (outputPort != null)
{
// open the file
var stream = await _inputFile.OpenReadAsync();
if (stream != null && stream.CanRead)
{
// validate the file
var validationStatus = await MidiSysExSender.MeasureAndValidateSysExFile(stream);
if (validationStatus.Status != MidiSysExSender.MidiSysExFileValidationStatus.OK)
{
// TODO: log failure
var dlg = new MessageDialog(validationStatus.GetStatusDescription());
dlg.Title = "Invalid SysEx file";
await dlg.ShowAsync();
return;
}
// Show statistics from the file
FileInformationPanel.Visibility = Visibility.Visible;
CalculatedBufferSize.Text = string.Format("{0:n0}", validationStatus.BufferSize);
CalculatedSysExMessageCount.Text = string.Format("{0:n0}", validationStatus.MessageCount);
CalculatedFileSize.Text = string.Format("{0:n0}", validationStatus.FileSize);
// send the bytes
_transferOperation = MidiSysExSender.SendSysExStreamAsyncWithProgress(
stream, outputPort, validationStatus.BufferSize, transferDelayBetweenBuffers);
// show progress of the operation. This is updated async
ProgressPanel.Visibility = Visibility.Visible;
Cancel.IsEnabled = true;
//report progress
_transferOperation.Progress = (result, progress) =>
{
SysExSendProgressBar.Value = (double)progress.BytesRead;
ProgressBytes.Text = string.Format("{0:n0}", progress.BytesRead);
PercentComplete.Text = Math.Round(((double)progress.BytesRead / _fileSizeInBytes) * 100, 0) + "%";
TransferOperationInProgress.Text = MidiSysExSender.GetStageDescription(progress.Stage);
};
// handle completion
_transferOperation.Completed = async(result, progress) =>
{
// no need for cancel anymore
Cancel.IsEnabled = false;
// nuke the stream
stream.Dispose();
stream = null;
// close the MIDI port
outputPort = null;
// show completion message, depending on what type of completion we have
if (result.Status == AsyncStatus.Canceled)
{
TransferOperationInProgress.Text = "Canceled";
Statistics.TotalCancelCount += 1;
Analytics.LogEvent(AnalyticsEvent.TransferCancel);
var dlg = new MessageDialog("Transfer canceled.");
await dlg.ShowAsync();
}
else if (result.Status == AsyncStatus.Error)
{
TransferOperationInProgress.Text = "Error";
Statistics.TotalErrorCount += 1;
Analytics.LogEvent(AnalyticsEvent.TransferError);
var dlg = new MessageDialog("Transfer error. You may need to close and re-open this app, and likely also reboot your device.");
await dlg.ShowAsync();
}
else
{
SysExSendProgressBar.Value = (double)_fileSizeInBytes;
ProgressBytes.Text = string.Format("{0:N0}", _fileSizeInBytes);
PercentComplete.Text = "100%";
TransferOperationInProgress.Text = "Completed";
// save the user-entered settings, since they worked
//Settings.TransferBufferSize = transferBufferSize;
Settings.TransferDelayBetweenBuffers = transferDelayBetweenBuffers;
//Settings.F0Delay = f0Delay;
// update user stats (for local use and display)
Statistics.TotalFilesTransferred += 1;
Statistics.TotalBytesTransferred += _fileSizeInBytes;
Analytics.LogEvent(AnalyticsEvent.TransferSuccess);
NotificationManager.NotifySuccess(_fileSizeInBytes, _inputFile.Name);
}
};
}
else
{
// TODO: log failure
// stream is null or CanRead is false
var dlg = new MessageDialog("Could not open file '" + _inputFile.Name + "' for reading.");
await dlg.ShowAsync();
}
}
else
{
// TODO: log failure
// outputPort is null
var dlg = new MessageDialog("Could not open MIDI output port '" + _outputPortDeviceInformation.Name + "'");
await dlg.ShowAsync();
}
}
else
{
// TODO: log failure
// _outputPortDeviceInformation is null
var dlg = new MessageDialog("No MIDI output port selected'");
await dlg.ShowAsync();
}
}
else
{
// TODO: log failure
// _inputFile is null
var dlg = new MessageDialog("No SysEx input file selected'");
await dlg.ShowAsync();
}
}
