/*
* org.openmicroscopy.shoola.util.ui.tpane.HiBgPainter
*
*------------------------------------------------------------------------------
* Copyright (C) 2006 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.util.ui.tpane;
//Java imports
import java.awt.Color;
import java.awt.GradientPaint;
import java.awt.Graphics2D;
import java.awt.Paint;
//Third-party libraries
//Application-internal dependencies
/**
* Paints an highlighted background for the <code>TitleBar</code> of
* {@link TinyPane}. This is a gradient paint.
*
* @author Jean-Marie Burel
* <a href="mailto:j.burel@dundee.ac.uk">j.burel@dundee.ac.uk</a>
* @author <br>Andrea Falconi
* <a href="mailto:a.falconi@dundee.ac.uk">
* a.falconi@dundee.ac.uk</a>
* @version 2.2
* <small>
* (<b>Internal version:</b> $Revision: 4694 $ $Date: 2006-12-15 17:02:59 +0000 (Fri, 15 Dec 2006) $)
* </small>
* @since OME2.2
*/
public class HiBgPainter
extends Painter
{
/** The color to use for highlighting the title bar. */
private Color highlightColor;
/**
* Creates a new instance.
*
* @param highlightColor The color to use for highlighting the title bar.
* Mustn't be <code>null</code>.
*/
public HiBgPainter(Color highlightColor)
{
if (highlightColor == null)
throw new NullPointerException("No highlight color.");
this.highlightColor = highlightColor;
}
/**
* Paints an highlighted background.
* @see Painter#doPaint(Graphics2D, int, int)
*/
protected void doPaint(Graphics2D g2D, int width, int height)
{
//Top half.
Paint p = new GradientPaint(0, ((float) height)/2, Color.WHITE, 0, 0,
highlightColor);
g2D.setPaint(p);
g2D.fillRect(0, 0, width, height/2);
//Bottom half.
p = new GradientPaint(0, ((float) height)/2, Color.WHITE, 0, height,
highlightColor);
g2D.setPaint(p);
g2D.fillRect(0, height/2, width, height/2);
}
}