GrayModel.java Source code

Introduction

Here is the source code for GrayModel.java

Source

/*
 *
 * Copyright (c) 1998 Sun Microsystems, Inc. All Rights Reserved.
 *
 * Sun grants you ("Licensee") a non-exclusive, royalty free, license to use,
 * modify and redistribute this software in source and binary code form,
 * provided that i) this copyright notice and license appear on all copies of
 * the software; and ii) Licensee does not utilize the software in a manner
 * which is disparaging to Sun.
 *
 * This software is provided "AS IS," without a warranty of any kind. ALL
 * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY
 * IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
 * NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE
 * LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING
 * OR DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS
 * LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT,
 * INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER
 * CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF
 * OR INABILITY TO USE SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGES.
 *
 * This software is not designed or intended for use in on-line control of
 * aircraft, air traffic, aircraft navigation or aircraft communications; or in
 * the design, construction, operation or maintenance of any nuclear
 * facility. Licensee represents and warrants that it will not use or
 * redistribute the Software for such purposes.
 */

import java.awt.Color;
import java.awt.Dimension;

import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JSpinner;
import javax.swing.SpinnerNumberModel;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;

class GrayModel extends SpinnerNumberModel {
    public GrayModel(int value) {
        super(value, 0, 255, 5);
    }

    public int getIntValue() {
        Integer myValue = (Integer) getValue();
        return myValue.intValue();
    }

    public Color getColor() {
        int intValue = getIntValue();
        return new Color(intValue, intValue, intValue);
    }
}

class GrayEditor extends JLabel implements ChangeListener {
    public GrayEditor(JSpinner spinner) {
        setOpaque(true);

        // Get info from the model.
        GrayModel myModel = (GrayModel) (spinner.getModel());
        setBackground(myModel.getColor());
        spinner.addChangeListener(this);

        // Set tool tip text.
        updateToolTipText(spinner);

        // Set size info.
        Dimension size = new Dimension(60, 15);
        setMinimumSize(size);
        setPreferredSize(size);
    }

    protected void updateToolTipText(JSpinner spinner) {
        String toolTipText = spinner.getToolTipText();
        if (toolTipText != null) {
            // JSpinner has tool tip text. Use it.
            if (!toolTipText.equals(getToolTipText())) {
                setToolTipText(toolTipText);
            }
        } else {
            // Define our own tool tip text.
            GrayModel myModel = (GrayModel) (spinner.getModel());
            int rgb = myModel.getIntValue();
            setToolTipText("(" + rgb + "," + rgb + "," + rgb + ")");
        }
    }

    public void stateChanged(ChangeEvent e) {
        JSpinner mySpinner = (JSpinner) (e.getSource());
        GrayModel myModel = (GrayModel) (mySpinner.getModel());
        setBackground(myModel.getColor());
        updateToolTipText(mySpinner);
    }
}

public class Main extends JPanel {
    public static void main(String[] args) {
        JFrame frame = new JFrame("SpinnerDemo4");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        JComponent newContentPane = new Main();
        newContentPane.setOpaque(true);
        frame.setContentPane(newContentPane);

        frame.add(new JLabel("Shade of Gray:"), "North");
        frame.add(new JSpinner(new GrayModel(170)));

        frame.pack();
        frame.setVisible(true);
    }

}