create Scaled Image - Java 2D Graphics

Java examples for 2D Graphics:BufferedImage Create

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Description

create Scaled Image

Demo Code

/*//w  w  w  .  j  a  v  a  2s  . co  m
    JPC: An x86 PC Hardware Emulator for a pure Java Virtual Machine
    Release Version 2.4

    A project from the Physics Dept, The University of Oxford

    Copyright (C) 2007-2010 The University of Oxford

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License version 2 as published by
    the Free Software Foundation.

    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.
         
    Details (including contact information) can be found at: 

    jpc.sourceforge.net
    or the developer website
    sourceforge.net/projects/jpc/

    Conceived and Developed by:
    Rhys Newman, Ian Preston, Chris Dennis

    End of licence header
 */
//package com.java2s;
import java.awt.*;

import java.awt.image.*;

public class Main {
    public static BufferedImage createScaledImage(BufferedImage img, int w) {
        int w1 = img.getWidth();
        if (w1 == 0)
            return null;

        int h = img.getHeight() * w / w1;
        return createScaledImage(img, w, h);
    }

    public static BufferedImage createScaledImage(BufferedImage img, int w,
            int h) {
        BufferedImage result = new BufferedImage(w, h,
                BufferedImage.TYPE_INT_ARGB);
        Graphics g = result.getGraphics();
        try {
            g.drawImage(img, 0, 0, w, h, null);
        } finally {
            g.dispose();
        }

        return result;
    }
}

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