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/**
 * Copyright (C) 2013-2014 Xeiam LLC http://xeiam.com
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
 * of the Software, and to permit persons to whom the Software is furnished to do
 * so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package org.knowm.datasets.mnist.tools;

import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.geom.AffineTransform;
import java.awt.image.AffineTransformOp;
import java.awt.image.BufferedImage;

import javax.swing.JPanel;

import org.knowm.datasets.mnist.Mnist;

/**
 * @author alexnugent
 */
public class MnistImagePanel2 extends JPanel {

  private BufferedImage image;

  public MnistImagePanel2(Mnist mnistData) {

    image = mnistData.getImageAsBufferedImage();

    setPreferredSize(new Dimension(image.getWidth(), image.getHeight()));
  }

  private void scale(int scale) {

    int w = image.getWidth();
    int h = image.getHeight();
    BufferedImage after = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB);
    AffineTransform at = new AffineTransform();
    at.scale(scale, scale);
    AffineTransformOp scaleOp = new AffineTransformOp(at, AffineTransformOp.TYPE_BILINEAR);
    after = scaleOp.filter(image, after);

    this.image = after;
  }

  @Override
  public void paintComponent(Graphics g) {

    super.paintComponent(g);
    g.drawImage(image, 0, 0, null); // see javadoc for more info on the parameters
  }

}