public static IEnumerable<Action> GenerateActions(Config config, string path, IEnumerable<string> imageNames, string destination, Dictionary<string, Dictionary<string, string>> replacementStrings)
{
foreach (var imageName in imageNames)
{
yield return new Resizer()
{
config = config,
imagePath = Path.Combine(path, imageName),
imageName = imageName,
destination = destination,
strings = replacementStrings[imageName]
}.Resize;
}
}
private void Resize(Image image, Config.Size size, string imagePath, string destinationPath)
{
if (".jpg" != Path.GetExtension(destinationPath))
{
var destination = Path.GetDirectoryName(destinationPath);
var destinationFileName = Path.GetFileNameWithoutExtension(destinationPath);
destinationPath = Path.Combine(destination, destinationFileName + ".jpg");
}
if (File.Exists(destinationPath))
{
File.Delete(destinationPath);
}
int resizedWidth;
int resizedHeight;
double aspectRatio = Convert.ToDouble(image.Width) / Convert.ToDouble(image.Height);
double inverseAspectRatio = Convert.ToDouble(image.Height) / Convert.ToDouble(image.Width);
// First, figure out what the size of the returned image will be based on specified height or width
if (null != size.Pixels)
{
// area = width * height;
// aspectRatio = width / height;
// width = area / height;
// width = height * aspectRatio;
// height = area / width;
// height = width / aspectRatio;
// width = area / (width / aspectRatio)
// width^2 / aspectRatio = area
// width^2 = area * aspectRatio
// width = sqrt(area * aspectRatio)
// height = area / (height * aspectRatio)
// height^2 * aspectRatio = area
// height^2 = area / aspectRatio
// height = sqrt(area / aspectRatio)
resizedWidth = Convert.ToInt32(Math.Sqrt(aspectRatio * Convert.ToDouble(size.Pixels.Value)));
resizedHeight = Convert.ToInt32(Math.Sqrt(Convert.ToDouble(size.Pixels.Value) / aspectRatio));
}
else if ((null != size.Width) && (null != size.Height))
{
resizedHeight = size.Height.Value;
resizedWidth = size.Width.Value;
aspectRatio = Convert.ToDouble(resizedWidth) / Convert.ToDouble(resizedHeight);
inverseAspectRatio = Convert.ToDouble(resizedHeight) / Convert.ToDouble(resizedWidth);
}
else if (null != size.Width)
{
resizedWidth = size.Width.Value;
resizedHeight = Convert.ToInt32(
Convert.ToDouble(size.Width.Value) * inverseAspectRatio);
}
else if (null != size.Height)
{
resizedHeight = size.Height.Value;
resizedWidth = Convert.ToInt32(
Convert.ToDouble(size.Height.Value) * aspectRatio);
}
else
{
resizedWidth = image.Width;
resizedHeight = image.Height;
}
// Second, make sure that maxes and mins aren't violated
if (null != size.MaxWidth)
if (resizedWidth > size.MaxWidth.Value)
{
resizedWidth = size.MaxWidth.Value;
resizedHeight = Convert.ToInt32(
Convert.ToDouble(size.MaxWidth.Value) * inverseAspectRatio);
}
if (null != size.MaxHeight)
if (resizedHeight > size.MaxHeight.Value)
{
resizedHeight = size.MaxHeight.Value;
resizedWidth = Convert.ToInt32(
Convert.ToDouble(size.MaxHeight.Value) * aspectRatio);
}
if (null != size.MinWidth)
if (resizedWidth < size.MinWidth.Value)
{
resizedWidth = size.MinWidth.Value;
resizedHeight = Convert.ToInt32(
Convert.ToDouble(size.MinWidth.Value) * inverseAspectRatio);
}
if (null != size.MinHeight)
if (resizedHeight < size.MinHeight.Value)
{
resizedHeight = size.MinHeight.Value;
resizedWidth = Convert.ToInt32(
Convert.ToDouble(size.MinHeight.Value) * aspectRatio);
}
this.strings[size.Name + "_height"] = resizedHeight.ToString();
this.strings[size.Name + "_width"] = resizedWidth.ToString();
this.strings[size.Name + "_image"] = size.Name + "/" + Path.GetFileName(destinationPath);
// Now, in the rare chance that size doesn't change, and there's no quality set, don't do anything
if ((resizedWidth == image.Width) && (resizedHeight == image.Height) && (null == size.Quality))
{
File.Copy(this.imagePath, destinationPath);
var len = new FileInfo(this.imagePath).Length;
this.strings[size.Name + "_sizebytes"] = len.ToString();
this.strings[size.Name + "_size"] = Resizer.GenerateSize(len);
}
else
{
// The image must be resized.
// reference: http://www.glennjones.net/Post/799/Highqualitydynamicallyresizedimageswithnet.htm
var thumbnail = new Bitmap(resizedWidth, resizedHeight);
Graphics graphic = System.Drawing.Graphics.FromImage(thumbnail);
// Set up high-quality resize mode
graphic.InterpolationMode = InterpolationMode.HighQualityBicubic;
graphic.SmoothingMode = SmoothingMode.AntiAlias;
graphic.PixelOffsetMode = PixelOffsetMode.HighQuality;
graphic.CompositingQuality = CompositingQuality.HighQuality;
// do the resize
graphic.DrawImage(image, 0, 0, resizedWidth, resizedHeight);
// Save as a high quality JPEG
var info = ImageCodecInfo.GetImageEncoders();
var encoderParameters = new EncoderParameters(1);
encoderParameters.Param[0] = new EncoderParameter(Encoder.Quality, size.Quality ?? 90L);
using (var stream = File.OpenWrite(destinationPath))
{
thumbnail.Save(stream, info[1], encoderParameters);
this.strings[size.Name + "_sizebytes"] = stream.Length.ToString();
this.strings[size.Name + "_size"] = Resizer.GenerateSize(stream.Length);
stream.Flush();
stream.Close();
}
}
}
public static void Main(string[] args)
{
try
{
var configFile = "config.xml";
if (args.Length > 0)
{
configFile = args[0];
}
configFile = Path.GetFullPath(configFile);
var config = new Config(configFile);
string path;
if (args.Length > 1)
{
path = Path.GetFullPath(args[1]);
}
else
{
path = Environment.CurrentDirectory;
}
string destination;
if (args.Length > 2)
{
destination = Path.GetFullPath(args[2]);
}
else
{
destination = Path.Combine(path, "generated");
}
if (false == Directory.Exists(destination))
{
Directory.CreateDirectory(destination);
}
var title = "Image Gallery";
if (args.Length > 3)
{
title = args[3];
}
foreach (var size in config.Sizes)
{
var sizePath = Path.Combine(destination, size.Name);
if (false == Directory.Exists(sizePath))
{
Directory.CreateDirectory(sizePath);
}
}
var imageFilesAndDates = MainClass.GetImageFilesAndDates(path);
var imageNames = imageFilesAndDates.Keys.OrderBy(n => imageFilesAndDates[n]).ToArray();
var replacementStrings = new Dictionary<string, Dictionary<string, string>>();
foreach (var imageName in imageNames)
{
var strings = new Dictionary<string, string>();
replacementStrings[imageName] = strings;
strings["name"] = imageName;
var date = imageFilesAndDates[imageName];
var localDate = date.ToLocalTime();
strings["date_long"] = localDate.ToLongDateString();
strings["time_long"] = localDate.ToLongTimeString();
strings["date_short"] = localDate.ToShortDateString();
strings["time_short"] = localDate.ToShortTimeString();
strings["datetime_milliseconds"] = (date - MainClass.JavascriptEpoc).TotalMilliseconds.ToString("R");
strings["datetime_net"] = date.ToString("o");
strings["datetime"] = date.ToString("r");
}
MainClass.actions = new Queue<Action>(Resizer.GenerateActions(config, path, imageNames, destination, replacementStrings));
var threads = new List<Thread>();
for (var ctr = 0; ctr < Environment.ProcessorCount - 1; ctr++)
{
var thread = new Thread(MainClass.DoWork)
{
Name = "Thread " + ctr.ToString()
};
thread.Start();
threads.Add(thread);
}
MainClass.DoWork();
foreach (var thread in threads)
{
thread.Join();
}
var templatePath = Path.GetDirectoryName(configFile);
foreach (var template in config.Templates)
{
TemplateXmlGenerator.GenerateTemplate(Path.Combine(templatePath, template.File), destination, imageNames, replacementStrings, title);
}
foreach (var template in config.Details)
{
TemplateXmlGenerator.GenerateDetails(Path.Combine(templatePath, template.File), destination, imageNames, replacementStrings, title);
}
foreach (var copyFile in config.CopyFiles)
{
var sourceFileName = Path.Combine(templatePath, copyFile.File);
var destFileName = Path.Combine(destination, copyFile.File);
if (File.Exists(destFileName))
{
File.Delete(destFileName);
}
File.Copy(sourceFileName, destFileName);
}
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
}
}
