make Cursor - Java java.awt

Java examples for java.awt:Cursor

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Description

make Cursor

Demo Code

/*/*from  w  ww.jav  a2s  .co  m*/
 * 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
 */
//package com.java2s;
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);
        }
    }
}

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