package org.hwo.image;

import java.awt.image.BufferedImage;
import java.io.File;

import org.hwo.image.imageio.ImageIOFile;
import org.hwo.image.tiff.TiffFile;

public class ImageProvider {

	private static ImageProvider imageProvider;
	
	public static ImageProvider instance()
	{
		if (imageProvider == null)
			imageProvider = new ImageProvider();
		return new ImageProvider();
	}
	
	ImageFile[] imageFiles = {
			new TiffFile(),
			new ImageIOFile("png"),
			new ImageIOFile("jpg")
	};
	
	
	protected ImageProvider()
	{
	}
	
	public ImageFile load(File file)
	{
		for (ImageFile imageFile:imageFiles)
		{
			if (imageFile.identify(file))
			{
				ImageFile ifile = imageFile.newInstance();
				ifile.load(file);
				return ifile;
			}
		}
		return null;
	}
	
	public ImageFile load(String path)
	{
		return load(new File(path));
	}
	
	public void save(BufferedImage image,File imageFile)
	{
		for (ImageFile ifile:imageFiles)
		{
			if (ifile.identify(imageFile))
			{
				ImageFile writer = ifile.newInstance();
				writer.addPage(image);
				writer.save(imageFile);
				return;
			}
		}

	}
	
}