Java BufferedImage Transparent makeTranspBufferedImage(Image image)

Description

make Transp Buffered Image

License

Open Source License

Declaration

public static BufferedImage makeTranspBufferedImage(Image image)

Method Source Code

//package com.java2s;
/* /*from  ww  w.ja va2  s .c o m*/
 * Proview   Open Source Process Control.
 * Copyright (C) 2005-2014 SSAB EMEA AB.
 *
 * This file is part of Proview.
 *
 * 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 Proview. If not, see <http://www.gnu.org/licenses/>
 *
 * Linking Proview statically or dynamically with other modules is
 * making a combined work based on Proview. Thus, the terms and 
 * conditions of the GNU General Public License cover the whole 
 * combination.
 *
 * In addition, as a special exception, the copyright holders of
 * Proview give you permission to, from the build function in the
 * Proview Configurator, combine Proview with modules generated by the
 * Proview PLC Editor to a PLC program, regardless of the license
 * terms of these modules. You may copy and distribute the resulting
 * combined work under the terms of your choice, provided that every 
 * copy of the combined work is accompanied by a complete copy of 
 * the source code of Proview (the version used to produce the 
 * combined work), being distributed under the terms of the GNU 
 * General Public License plus this exception.
 */

import java.awt.*;

import java.awt.image.*;

public class Main {
    private static final Component sComponent = new Component() {
    };
    private static final MediaTracker sTracker = new MediaTracker(
            sComponent);
    private static int sID = 0;

    public static BufferedImage makeTranspBufferedImage(Image image) {
        if (waitForImage(image) == false)
            return null;
        BufferedImage bufferedImage = new BufferedImage(
                image.getWidth(null), image.getHeight(null),
                BufferedImage.TYPE_INT_ARGB);
        Graphics2D g2 = bufferedImage.createGraphics();

        g2.drawImage(image, null, null);

        // Make image transparent
        int[] TRANSPARENT_COLOR = { 255, 255, 255, 0 };
        WritableRaster raster = bufferedImage.getRaster();
        int[] pixel = new int[4];
        for (int y = 0; y < bufferedImage.getHeight(); y++)
            for (int x = 0; x < bufferedImage.getWidth(); x++) {
                pixel = raster.getPixel(x, y, pixel);
                if (pixel[0] == TRANSPARENT_COLOR[0]
                        && pixel[1] == TRANSPARENT_COLOR[1]
                        && pixel[2] == TRANSPARENT_COLOR[2]) {
                    raster.setPixel(x, y, TRANSPARENT_COLOR);
                }
            }

        return bufferedImage;
    }

    public static boolean waitForImage(Image image) {
        int id;
        synchronized (sComponent) {
            id = sID++;
        }
        sTracker.addImage(image, id);
        try {
            sTracker.waitForID(id);
        } catch (InterruptedException ie) {
            return false;
        }

        if (sTracker.isErrorID(id))
            return false;
        return true;
    }
}

Java BufferedImage Transparent makeTranspBufferedImage(Image image)

Description

License

Declaration

Method Source Code

Related