package bjc.imgchain.utils;

import java.awt.Graphics2D;
import java.awt.GridLayout;
import java.awt.Image;
import java.awt.image.BufferedImage;

import javax.swing.ImageIcon;
import javax.swing.JInternalFrame;
import javax.swing.JLabel;

import bjc.imgchain.ImgChain;

public class Utils {
	public static BufferedImage toBuffered(Image img) {
		if (img instanceof BufferedImage) {
			return (BufferedImage) img;
		}

		/*
		 * Create a buffered image with transparency
		 */
		BufferedImage bufimg = new BufferedImage(img.getWidth(null), img.getHeight(null),
				BufferedImage.TYPE_INT_ARGB);

		/*
		 * Draw the image on to the buffered image
		 */
		Graphics2D graph = bufimg.createGraphics();
		graph.drawImage(img, 0, 0, null);
		graph.dispose();

		/*
		 * Return the buffered image
		 */
		return bufimg;
	}

	public static int[] toARGBQuad(int rbg) {
		return new int[] { (rbg >> 24) & 0xff, (rbg >> 16) & 0xff, (rbg >> 8) & 0xff, rbg & 0xff };
	}

	public static int fromARGBQuad(int[] argb) {
		return (argb[0] << 24) | (argb[1] << 16) | (argb[2] << 8) | argb[3];
	}

	public static int[][] padarray(int[][] arr, int padWith, int numOfPads) {
		int[][] temp = new int[arr.length + numOfPads * 2][arr[0].length + numOfPads * 2];
		for (int i = 0; i < temp.length; i++) {
			for (int j = 0; j < temp[i].length; j++) {
				temp[i][j] = padWith;
			}
		}
		for (int i = 0; i < arr.length; i++) {
			for (int j = 0; j < arr[i].length; j++) {
				temp[i + numOfPads][j + numOfPads] = arr[i][j];
			}
		}
		return temp;
	}

	public static void displayImage(Image processed, String title) {
		{
			BufferedImage resimg = toBuffered(processed);

			JInternalFrame displayFrame = new JInternalFrame(title, false, true, true);
			displayFrame.setSize(resimg.getWidth(), resimg.getHeight());
			displayFrame.setLayout(new GridLayout(1, 1));

			JLabel displayLabel = new JLabel(new ImageIcon(resimg));

			displayFrame.add(displayLabel);

			ImgChain.chan.desktop.add(displayFrame);
			displayFrame.setVisible(true);
		}
	}
}