/*
* org.openmicroscopy.shoola.agents.metadata.util.FigureCanvas
*
*------------------------------------------------------------------------------
* Copyright (C) 2006-2009 University of Dundee. All rights reserved.
*
*
* 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 2 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, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*------------------------------------------------------------------------------
*/
package org.openmicroscopy.shoola.agents.metadata.util;
//Java imports
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.image.BufferedImage;
import javax.swing.JPanel;
//Third-party libraries
//Application-internal dependencies
import org.openmicroscopy.shoola.agents.imviewer.util.ImagePaintingFactory;
/**
* Display one of the image.
*
* @author Jean-Marie Burel
* <a href="mailto:j.burel@dundee.ac.uk">j.burel@dundee.ac.uk</a>
* @author Donald MacDonald
* <a href="mailto:donald@lifesci.dundee.ac.uk">donald@lifesci.dundee.ac.uk</a>
* @version 3.0
* <small>
* (<b>Internal version:</b> $Revision: $Date: $)
* </small>
* @since 3.0-Beta4
*/
class FigureCanvas
extends JPanel
{
/** The image to paint. */
private BufferedImage image;
/** Indicates if the image should be visible. */
private boolean imageVisible;
/** Creates a new instance. */
FigureCanvas()
{
setBackground(getBackground());
setDoubleBuffered(true);
imageVisible = true;
}
/**
* Sets the image to paint.
*
* @param image The image to paint.
*/
void setImage(BufferedImage image)
{
this.image = image;
repaint();
}
/**
* Sets the flag.
*
* @param imageVisible Pass <code>true</code> to show the image
* (if not <code>null</code>), <code>false</code>
* to hide it.
*/
void setImageVisible(boolean imageVisible)
{
this.imageVisible = imageVisible;
}
/**
* Overridden to paint the image.
* @see javax.swing.JComponent#paintComponent(Graphics)
*/
public void paintComponent(Graphics g)
{
super.paintComponent(g);
Graphics2D g2D = (Graphics2D) g;
ImagePaintingFactory.setGraphicRenderingSettings(g2D);
if (image == null) {
Rectangle r = getBounds();
g2D.drawRect(0, 0, r.width-1, r.height-1);
return;
}
if (!imageVisible) {
g2D.drawRect(0, 0, image.getWidth()-1, image.getHeight()-1);
return;
}
g2D.drawImage(image, null, 0, 0);
}
}