static void Main(string[] args)
{
var options = new Options();
if (!CommandLine.Parser.Default.ParseArguments(args, options))
return;
var logger = new ConsoleLogger();
new Program(logger).Start(options);
Console.WriteLine("Press any key to continue...");
Console.ReadKey();
}
private void Start(Options options)
{
if (!Directory.Exists(options.InputDirectory))
{
_logger.Error("The specified directory does not exist.");
return;
}
// in case output directory is unspecified or invalid, use input directory
// for output
var inputRoot = new DirectoryInfo(options.InputDirectory);
var outputRoot = options.OutputDirectory != null
? new DirectoryInfo(options.OutputDirectory)
: new DirectoryInfo(options.InputDirectory);
if (outputRoot != inputRoot)
{
if (!outputRoot.Exists)
{
try
{
outputRoot.Create();
}
catch (IOException ioException)
{
_logger.Error("Could not create output directory.\n{0}", ioException);
return;
}
}
}
// scan the files
_logger.Info("Input directory: {0}", inputRoot);
_logger.Info("Output directory: {0}", outputRoot);
_logger.Info("Searching for files...");
var files = FileScanner.ScanForFiles(options.InputDirectory, "*.txt");
if (files.Count == 0)
{
_logger.Error("No files found.");
return;
}
//remove file roots so we could write them somewhere else
var strippedFiles = files.Select(info => info.FullName.Replace(inputRoot.FullName, "")).ToList();
_logger.Info("Found {0} files on the path.", files.Count);
new FileProcessor(options, _logger).Process(strippedFiles, inputRoot, outputRoot);
}
/// <summary>
/// Initializes a new instance of the <see cref="FileProcessor"/> class.
/// </summary>
/// <param name="options">The options.</param>
/// <param name="logger">The logger.</param>
public FileProcessor(Options options, ILogger logger)
{
_options = options;
_logger = logger;
}
public BitmapSource RenderToFile(string text, Options options, string outFile)
{
RenderTargetBitmap bitmap = null;
var thread = new Thread(() =>
{
var outFileInfo = new FileInfo(outFile);
var desiredWidth = options.ImageWidth;
// set Grid and Textblock options
var grid = new Grid();
var tb = new TextBlock();
tb.SetValue(FrameworkElement.VerticalAlignmentProperty, VerticalAlignment.Top);
tb.SetValue(FrameworkElement.HorizontalAlignmentProperty, HorizontalAlignment.Stretch);
tb.SetValue(TextBlock.TextWrappingProperty, TextWrapping.Wrap);
tb.SetValue(TextBlock.BackgroundProperty, Brushes.White);
tb.SetValue(TextBlock.TextProperty, text);
tb.SetValue(TextBlock.PaddingProperty, new Thickness(options.Padding));
tb.SetValue(TextBlock.FontFamilyProperty, new FontFamily(options.Font));
tb.SetValue(TextBlock.FontSizeProperty, (double)options.FontSize);
tb.SetValue(TextBlock.TextAlignmentProperty, options.TextAlinment);
// set text rendering and hinting options
//TODO: http://blogs.msdn.com/b/text/archive/2009/08/24/wpf-4-0-text-stack-improvements.aspx
tb.SetValue(TextOptions.TextFormattingModeProperty, TextFormattingMode.Ideal);
tb.SetValue(TextOptions.TextRenderingModeProperty, TextRenderingMode.ClearType);
// add TB to the grid, we'll use this to accurately measure the
// final height of the box
grid.Children.Add(tb);
// measure
grid.Measure(new Size(desiredWidth, 200));
grid.Arrange(new Rect(new Size(desiredWidth, 200)));
// get the actual size required to fit the entire text
var actual = Math.Ceiling(tb.ActualHeight);
// addjust our components to match the actual height
grid.Measure(new Size(desiredWidth, actual));
grid.Arrange(new Rect(new Size(desiredWidth, actual)));
// create rendering target and render control onto it
bitmap = new RenderTargetBitmap(desiredWidth, (int)actual, 96, 96, PixelFormats.Pbgra32);
bitmap.Render(tb);
// encode it and save it to file.
var encoder = new JpegBitmapEncoder { QualityLevel = 100 };
encoder.Frames.Add(BitmapFrame.Create(bitmap));
if (outFileInfo.DirectoryName != null)
Directory.CreateDirectory(outFileInfo.DirectoryName);
using (Stream s = File.Create(outFile))
encoder.Save(s);
});
thread.SetApartmentState(ApartmentState.STA);
thread.Priority = ThreadPriority.AboveNormal;
thread.Start();
thread.Join();
return bitmap;
}
