GraphicUtils.java

/*
*   EuroCarbDB, a framework for carbohydrate bioinformatics
*
*   Copyright (c) 2006-2009, Eurocarb project, or third-party contributors as
*   indicated by the @author tags or express copyright attribution
*   statements applied by the authors.  
*
*   This copyrighted material is made available to anyone wishing to use, modify,
*   copy, or redistribute it subject to the terms and conditions of the GNU
*   Lesser General Public License, as published by the Free Software Foundation.
*   A copy of this license accompanies this distribution in the file LICENSE.txt.
*
*   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 Lesser General Public License
*   for more details.
*
*   Last commit: $Rev: 1210 $ by $Author: glycoslave $ on $Date:: 2009-06-12 #$  
*/

package org.eurocarbdb.application.glycanbuilder;

import java.awt.*;
import java.awt.geom.*;
import java.awt.image.*;

/**
   Utility class with functions to simplify the access to the graphic
   environment

   @author Alessio Ceroni (a.ceroni@imperial.ac.uk)
*/

public class GraphicUtils {

    private GraphicUtils() {}

    /**
       Create an image compatible with the graphic environment. If no
       graphic environment is present a simple image is created
       instead.
       @param width width of the image
       @param height height of the image
       @param opaque if <code>false</code> the background of the image
       will be set to transparant
     */
    static public BufferedImage createCompatibleImage(int width, int height, boolean opaque) {    
    // retrieve graphic environment
    
    // no display
    if( GraphicsEnvironment.isHeadless() ) {
        if( opaque )
        return new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
        return new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
    }

    // compatible to display
    GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
    GraphicsDevice gs = ge.getDefaultScreenDevice();
    GraphicsConfiguration gc = gs.getDefaultConfiguration();
    if( opaque )         
        return gc.createCompatibleImage(width, height);
    return gc.createCompatibleImage(width, height, Transparency.BITMASK);
    }


    /**
       Create an image.
       @param width width of the image
       @param height height of the image
       @param opaque if <code>false</code> the background of the image
       will be set to transparant
     */
    static public BufferedImage createImage(int width, int height, boolean opaque) {
    if( opaque )
        return new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
    return new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
    }

    /**
       Create an image.
       @param d size of the image
       @param opaque if <code>false</code> the background of the image
       will be set to transparant
     */
    static public BufferedImage createImage(Dimension d, boolean opaque) {
    return createImage(d.width,d.height,opaque);
    }


}