private static Bitmap[] TakeImagesForConcat(string[] files, ConcatSettings settings)
{
if (settings.MaxFileHeight == 0)
{
return(files.Take(settings.MaxFiles).Select(x => new Bitmap(x)).ToArray());
}
var bitmaps = new List <Bitmap>();
var currentHeight = 0;
var curIndex = 0;
while (curIndex < files.Length)
{
var newBitmap = new Bitmap(files[curIndex]);
if (newBitmap.Height + currentHeight > settings.MaxFileHeight)
{
newBitmap.Dispose();
break;
}
currentHeight += newBitmap.Height;
curIndex++;
bitmaps.Add(newBitmap);
}
return(bitmaps.ToArray());
}
public static void Concat(ConcatSettings settings, IProgress <double> progress)
{
var files = Directory.GetFiles(settings.InputDirectory)
.Where(x => Extensions.Contains(Path.GetExtension(x)))
.ToArray();
var maxFiles = files.Length;
var progressValue = 0d;
var i = 1;
var tasks = new List <Task>();
var l = new object();
while (files.Length != 0)
{
var mergingFiles = TakeImagesForConcat(files, settings);
files = files.Skip(mergingFiles.Length).ToArray();
var path = $"{settings.OutputDirectory}\\{i.ToString().PadLeft(settings.Pad, '0')}.png";
tasks.Add(Task.Factory.StartNew(() =>
{
var currentPath = path;
var currentMergingFiles = mergingFiles;
var result = ConcatBitmaps(currentMergingFiles, settings.Offset, (ConcatImageByWidth)settings.WidthCorrector);
result.Save(currentPath);
result.Dispose();
foreach (var file in currentMergingFiles)
{
file.Dispose();
}
lock (l)
{
progressValue += (double)currentMergingFiles.Length / maxFiles;
progress.Report(progressValue);
}
}));
i++;
}
Task.WaitAll(tasks.ToArray());
}