Java ImageIcon to BufferedImage getBufferedImage(final ImageIcon icon)

Description

Gets a scaled icon and if it doesn't exist it creates one and scales it

License

Open Source License

Parameter

Parameter	Description
icon	image to be scaled
iconSize	the icon size (Std)
scaledIconSize	the new scaled size in pixels

Return

the scaled icon

Declaration

public static BufferedImage getBufferedImage(final ImageIcon icon) 

Method Source Code

//package com.java2s;
/* Copyright (C) 2015, University of Kansas Center for Research
 * //from  w w w  . j  a v a 2  s  .co  m
 * Specify Software Project, specify@ku.edu, Biodiversity Institute,
 * 1345 Jayhawk Boulevard, Lawrence, Kansas, 66045, USA
 * 
 * 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.
*/

import java.awt.Graphics2D;
import java.awt.Image;

import java.awt.RenderingHints;

import java.awt.image.BufferedImage;

import javax.swing.ImageIcon;

public class Main {
    /**
     * Gets a scaled icon and if it doesn't exist it creates one and scales it
     * @param icon image to be scaled
     * @param iconSize the icon size (Std)
     * @param scaledIconSize the new scaled size in pixels
     * @return the scaled icon
     */
    public static BufferedImage getBufferedImage(final ImageIcon icon) {
        Image imgMemory = icon.getImage();

        //make sure all pixels in the image were loaded
        imgMemory = new ImageIcon(imgMemory).getImage();

        int w = icon.getIconWidth();
        int h = icon.getIconHeight();
        BufferedImage bufferedImage = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB);

        Graphics2D graphics2D = bufferedImage.createGraphics();
        graphics2D.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
        graphics2D.drawImage(imgMemory, 0, 0, w, h, 0, 0, w, h, null);
        graphics2D.dispose();

        return bufferedImage;
    }
}

Related

1. getBufferedImage(ImageIcon icon)
2. getBufferedImageFitToWidth(ImageIcon icon, double width)
3. imageIconToBufferedImage(ImageIcon icon)
4. imageToBufferedImage(ImageIcon src)