Java BufferedImage Operation makeCursor(BufferedImage img, int hotx, int hoty, String name)

Description

make Cursor

License

Mozilla Public License

Declaration

public static Cursor makeCursor(BufferedImage img, int hotx, int hoty, String name) 

Method Source Code

//package com.java2s;
/*/*from   ww w  .j  a  v a2 s. c  om*/
 * Copyright © 2009-2011 Rebecca G. Bettencourt / Kreative Software
 * <p>
 * The contents of this file are subject to the Mozilla Public License
 * Version 1.1 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * <a href="http://www.mozilla.org/MPL/">http://www.mozilla.org/MPL/</a>
 * <p>
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
 * License for the specific language governing rights and limitations
 * under the License.
 * <p>
 * Alternatively, the contents of this file may be used under the terms
 * of the GNU Lesser General Public License (the "LGPL License"), in which
 * case the provisions of LGPL License are applicable instead of those
 * above. If you wish to allow use of your version of this file only
 * under the terms of the LGPL License and not to allow others to use
 * your version of this file under the MPL, indicate your decision by
 * deleting the provisions above and replace them with the notice and
 * other provisions required by the LGPL License. If you do not delete
 * the provisions above, a recipient may use your version of this file
 * under either the MPL or the LGPL License.
 * @since PowerPaint 1.0
 * @author Rebecca G. Bettencourt, Kreative Software
 */

import java.awt.Cursor;
import java.awt.Dimension;
import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.Toolkit;
import java.awt.image.BufferedImage;

public class Main {
    public static Cursor makeCursor(int width, int height, int[] rgb, int hotx, int hoty, String name) {
        try {
            Toolkit tk = Toolkit.getDefaultToolkit();
            Dimension d = tk.getBestCursorSize(width, height);
            if (d.width <= 0 || d.height <= 0) {
                System.err.println("Notice: System does not support custom cursors. Returning generic cursor.");
                return Cursor.getPredefinedCursor(Cursor.CROSSHAIR_CURSOR);
            }
            if (d.width < width || d.height < height) {
                d = tk.getBestCursorSize(width * 2, height * 2);
                if (d.width < width || d.height < height) {
                    System.err.println(
                            "Notice: Tool requested a cursor larger than possible on this system. Returning generic cursor.");
                    return Cursor.getPredefinedCursor(Cursor.CROSSHAIR_CURSOR);
                }
            }
            BufferedImage img2 = new BufferedImage(d.width, d.height, BufferedImage.TYPE_INT_ARGB);
            img2.setRGB(0, 0, width, height, rgb, 0, width);
            return tk.createCustomCursor(img2, new Point(hotx, hoty), name);
        } catch (Exception e) {
            e.printStackTrace();
            return Cursor.getPredefinedCursor(Cursor.CROSSHAIR_CURSOR);
        }
    }

    public static Cursor makeCursor(BufferedImage img, int hotx, int hoty, String name) {
        try {
            Toolkit tk = Toolkit.getDefaultToolkit();
            Dimension d = tk.getBestCursorSize(img.getWidth(), img.getHeight());
            if (d.width <= 0 || d.height <= 0) {
                System.err.println("Notice: System does not support custom cursors. Returning generic cursor.");
                return Cursor.getPredefinedCursor(Cursor.CROSSHAIR_CURSOR);
            }
            if (d.width < img.getWidth() || d.height < img.getHeight()) {
                d = tk.getBestCursorSize(img.getWidth() * 2, img.getHeight() * 2);
                if (d.width < img.getWidth() || d.height < img.getHeight()) {
                    System.err.println(
                            "Notice: Tool requested a cursor larger than possible on this system. Returning generic cursor.");
                    return Cursor.getPredefinedCursor(Cursor.CROSSHAIR_CURSOR);
                }
            }
            BufferedImage img2 = new BufferedImage(d.width, d.height, BufferedImage.TYPE_INT_ARGB);
            Graphics2D g2 = img2.createGraphics();
            g2.drawImage(img, null, 0, 0);
            g2.dispose();
            return tk.createCustomCursor(img2, new Point(hotx, hoty), name);
        } catch (Exception e) {
            e.printStackTrace();
            return Cursor.getPredefinedCursor(Cursor.CROSSHAIR_CURSOR);
        }
    }
}

Related

1. intensityArrayToBufferedImage(byte[] array, int w, int h)
2. interp(BufferedImage img1, BufferedImage img2, int weight1, int weight2)
3. knit(BufferedImage[] buffImages)
4. layer(BufferedImage source, BufferedImage destination, int x, int y)
5. makeBinary(BufferedImage image, int threshold)
6. makeGhost(BufferedImage image)
7. makeImageTranslucent(BufferedImage source, float alpha)
8. makeItBlack(BufferedImage image)
9. makeMouseover(final BufferedImage src)