/*
 * #%L
 * gitools-ui-platform
 * %%
 * Copyright (C) 2013 Universitat Pompeu Fabra - Biomedical Genomics group
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as
 * published by the Free Software Foundation, either version 3 of the 
 * License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public 
 * License along with this program.  If not, see
 * <http://www.gnu.org/licenses/gpl-3.0.html>.
 * #L%
 */
package org.gitools.ui.platform.imageviewer;

import javax.swing.*;
import java.awt.*;
import java.awt.image.BufferedImage;

/**
 * The <code>JComponent</code> implementing an overlay.
 *
 * @author Kazó Csaba
 */
class OverlayComponent extends JComponent {
    Overlay overlay;
    ImageComponent theImage;

    public OverlayComponent(Overlay overlay, ImageComponent image) {
        this.overlay = overlay;
        this.theImage = image;
    }

    @Override
    protected void paintComponent(Graphics g) {
        BufferedImage image = theImage.getImage();
        if (image != null) {
            Graphics2D gg = (Graphics2D) g.create();
            overlay.paint(gg, image, theImage.getImageTransform());
            gg.dispose();
        }
    }

    @Override
    public Dimension getMaximumSize() {
        return new Dimension(Integer.MAX_VALUE, Integer.MAX_VALUE);
    }
}