private async void generateButton_Click(object sender, EventArgs e)
{
if (_cancellationTokenSource != null)
{
_cancellationTokenSource.Cancel();
_cancellationTokenSource.Dispose();
_cancellationTokenSource = null;
generateButton.Text = GenerateButtonText;
progressBar1.Value = progressBar1.Minimum;
return;
}
#region Validate Params
try
{
ValidateParams();
}
catch (OperationCanceledException)
{
return;
}
catch (Exception ex)
{
MessageBox.Show(this, ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
return;
}
#endregion
#region Loop through files, Send to ffmpeg
var files = Directory.GetFiles(SettingsHandler.SourceDir)
.Where(f => validMovieExtensions
.Any(ext => f.EndsWith(ext)))
//.Select(f => Path.GetFileName(f))
.ToArray();
//MessageBox.Show(this, $" Will operate on: {files.Length} files", "Debug", MessageBoxButtons.OK, MessageBoxIcon.Information);
// Actually create the barcode:
fileCountProgress.Visible = true;
for (int i = 0; i < files.Length; i++)
{
// Register progression callback and ready cancellation source:
fileCountProgress.Text = $"processing {i} of {files.Length} images";
var progress = new PercentageProgressHandler(percentage =>
{
var progressBarValue = Math.Min(100, (int)Math.Round(percentage * 100, MidpointRounding.AwayFromZero));
Invoke(new Action(() =>
{
if (_cancellationTokenSource != null)
{
progressBar1.Value = progressBarValue;
}
}));
});
_cancellationTokenSource = new CancellationTokenSource();
var cancellationLocalRef = _cancellationTokenSource;
string outputFile = Path.Combine(SettingsHandler.OutputDir, Path.GetFileName(files[i]));
if (!Directory.Exists(Path.GetDirectoryName(outputFile)))
{
Directory.CreateDirectory(Path.GetDirectoryName(outputFile));
}
outputFile = Path.ChangeExtension(outputFile, "png");
//MessageBox.Show(this,
// $" Source Fie: {files[i]}, " +
// $"Target File: {outputFile} ",
// "Debug", MessageBoxButtons.OK, MessageBoxIcon.Information);
Bitmap result = null;
string audioFile = string.Empty;
try
{
generateButton.Text = CancelButtonText;
generateButton.Enabled = false;
// Prevent the user from cancelling for 1sec (it might not be obvious the generation has started)
var dontCare = Task.Delay(1000).ContinueWith(t =>
{
try
{
Invoke(new Action(() => generateButton.Enabled = true));
}
catch { }
});
await Task.Run(() =>
{
(result, audioFile) = _imageProcessor.CreateBarCode(files[i], _ffmpegWrapper, _cancellationTokenSource.Token, progress);
var args = $"-file \"{audioFile}\" -chunk {SettingsHandler.ChunkSize}";
AudioProcessor.ProcessAudio(args, _cancellationTokenSource.Token);
}, _cancellationTokenSource.Token);
//await Task.Run(() =>
//{
// var args = $"-file {audioFile} -chunk {SettingsHandler.ChunkSize}";
// AudioProcessor.ProcessAudio(args, _cancellationTokenSource.Token);
//}, _cancellationTokenSource.Token);
}
catch (OperationCanceledException)
{
return;
}
catch (Exception ex)
{
MessageBox.Show(this,
$@"Sorry, something went wrong. Here is all the info available at the time of the error (press Ctrl+C to copy it).
Input: {files[i]}
Output width: {SettingsHandler.ImageWidth}
Output height: {SettingsHandler.ImageHeight}
Bar width: {SettingsHandler.BarWidth}
Error: {ex}",
"Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
finally
{
generateButton.Text = GenerateButtonText;
_cancellationTokenSource?.Dispose();
_cancellationTokenSource = null;
}
if (cancellationLocalRef.IsCancellationRequested)
{
return;
}
// Save the barcode:
try
{
// for some reason this app is now hanging if files already exist
if (File.Exists(outputFile))
{
File.Delete(outputFile);
}
result.Save(outputFile, System.Drawing.Imaging.ImageFormat.Png);
}
catch (Exception ex)
{
MessageBox.Show(this, $" Unable to save the image: {ex}", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
if (SettingsHandler.ShouldCreateSmoothDuplicate)
{
Bitmap smoothed;
try
{
smoothed = _imageProcessor.GetSmoothedCopy(result);
}
catch (Exception ex)
{
MessageBox.Show(this, $"An error occured while creating the smoothed version of the barcode. Error: {ex}",
"Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
try
{
var outFile = outputFile.Replace(".png", "_smoothed.png");
if (File.Exists(outFile))
{
File.Delete(outFile);
}
smoothed.Save(outputFile.Replace(".png", "_smoothed.png"), System.Drawing.Imaging.ImageFormat.Png);
}
catch (Exception ex)
{
MessageBox.Show(this, $" Unable to save the smoothed image: {ex}", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
}
fileCountProgress.Text = $"finished processing {files.Length} images";
#endregion
}
private async void generateButton_Click(object sender, EventArgs e)
{
if (_cancellationTokenSource != null)
{
_cancellationTokenSource.Cancel();
_cancellationTokenSource.Dispose();
_cancellationTokenSource = null;
generateButton.Text = GenerateButtonText;
progressBar1.Value = progressBar1.Minimum;
return;
}
// Validate parameters:
string inputPath;
string outputPath;
string smoothedOutputPath;
BarCodeParameters parameters;
try
{
(inputPath, outputPath, smoothedOutputPath, parameters) = GetValidatedParameters();
}
catch (OperationCanceledException)
{
return;
}
catch (Exception ex)
{
MessageBox.Show(this, ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
return;
}
// Register progression callback and ready cancellation source:
var progress = new PercentageProgressHandler(percentage =>
{
var progressBarValue = Math.Min(100, (int)Math.Round(percentage * 100, MidpointRounding.AwayFromZero));
Invoke(new Action(() =>
{
if (_cancellationTokenSource != null)
{
progressBar1.Value = progressBarValue;
}
}));
});
_cancellationTokenSource = new CancellationTokenSource();
var cancellationLocalRef = _cancellationTokenSource;
// Actually create the barcode:
Bitmap result = null;
try
{
generateButton.Text = CancelButtonText;
generateButton.Enabled = false;
// Prevent the user from cancelling for 1sec (it might not be obvious the generation has started)
var dontCare = Task.Delay(1000).ContinueWith(t =>
{
try
{
Invoke(new Action(() => generateButton.Enabled = true));
}
catch { }
});
await Task.Run(() =>
{
result = _imageProcessor.CreateBarCode(inputPath, parameters, _ffmpegWrapper, _cancellationTokenSource.Token, progress);
}, _cancellationTokenSource.Token);
}
catch (OperationCanceledException)
{
return;
}
catch (Exception ex)
{
MessageBox.Show(this,
$@"Sorry, something went wrong.
Here is all the info available at the time of the error (press Ctrl+C to copy it).
Input: {inputPath}
Output width: {parameters.Width}
Output height: {parameters.Height}
Bar width: {parameters.BarWidth}
Error: {ex}",
"Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
finally
{
generateButton.Text = GenerateButtonText;
_cancellationTokenSource?.Dispose();
_cancellationTokenSource = null;
}
if (cancellationLocalRef.IsCancellationRequested)
{
return;
}
// Save the barcode:
try
{
result.Save(outputPath);
}
catch (Exception ex)
{
MessageBox.Show(this, $" Unable to save the image: {ex}", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
if (smoothedOutputPath != null)
{
Bitmap smoothed;
try
{
smoothed = _imageProcessor.GetSmoothedCopy(result);
}
catch (Exception ex)
{
MessageBox.Show(this, $"An error occured while creating the smoothed version of the barcode. Error: {ex}",
"Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
try
{
smoothed.Save(smoothedOutputPath);
}
catch (Exception ex)
{
MessageBox.Show(this, $" Unable to save the smoothed image: {ex}", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
}
