paint To Image - Java 2D Graphics

Java examples for 2D Graphics:BufferedImage Paint

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Description

paint To Image

Demo Code

/*//  w w  w. jav  a 2s. c o  m
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
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 */
//package com.java2s;
import java.awt.*;
import java.awt.image.*;
import javax.swing.*;

public class Main {
    public static BufferedImage paintToImage(Component comp) {
        int width = comp.getWidth();
        int height = comp.getHeight();

        if (width <= 0 || height <= 0) {
            return null;
        }


        BufferedImage image = new BufferedImage(width, height,
                BufferedImage.TYPE_INT_ARGB);

        Graphics2D g = image.createGraphics();

        // For unknown reasons, painting to images occasionally requires
        // disabling double-buffering :P
        RepaintManager manager = RepaintManager.currentManager(comp);
        boolean dbEnabled = manager.isDoubleBufferingEnabled();
        if (dbEnabled) {
            manager.setDoubleBufferingEnabled(false);
        }

        comp.paint(g);

        if (dbEnabled) {
            manager.setDoubleBufferingEnabled(true);
        }

        g.dispose();

        return image;
    }
}

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