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jtstand-common is a library derived from jcommon, used by jtstand-chart, which is derived from jfreechart
There is a newer version: 1.5.9
/*
 * Copyright (c) 2009 Albert Kurucz. 
 *
 * This file, Spinner.java is part of JTStand.
 *
 * JTStand is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * JTStand 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with GTStand.  If not, see .
 */

package org.jfree.ui;

import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.SwingConstants;

/**
 * A very basic spinner component, used for demo purposes only.
 *
 * @author David Gilbert
 */
public class Spinner extends JPanel implements MouseListener {

    /** The current value. */
    private int value;

    /** The text field displaying the value. */
    private JTextField textField;

    /** The arrow button panel. */
    private JPanel buttonPanel;

    /** The up button. */
    private ArrowPanel upButton;

    /** The down button. */
    private ArrowPanel downButton;

    /**
     * Creates a new spinner.
     *
     * @param value  the initial value.
     */
    public Spinner(final int value) {
        super(new BorderLayout());
        this.value = value;
        this.textField = new JTextField(Integer.toString(this.value));
        this.textField.setHorizontalAlignment(SwingConstants.RIGHT);
        add(this.textField);
        this.buttonPanel = new JPanel(new GridLayout(2, 1, 0, 1));
        this.upButton = new ArrowPanel(ArrowPanel.UP);
        this.upButton.addMouseListener(this);
        this.downButton = new ArrowPanel(ArrowPanel.DOWN);
        this.downButton.addMouseListener(this);
        this.buttonPanel.add(this.upButton);
        this.buttonPanel.add(this.downButton);
        add(this.buttonPanel, BorderLayout.EAST);
    }

    /**
     * Returns the current value.
     *
     * @return the current value.
     */
    public int getValue() {
        return this.value;
    }

    /**
     * Receives notification of mouse clicks.
     *
     * @param e  the mouse event.
     */
    public void mouseClicked(final MouseEvent e) {
        if (e.getSource() == this.upButton) {
            this.value++;
            this.textField.setText(Integer.toString(this.value));
            firePropertyChange("value", this.value - 1, this.value);
        }
        else if (e.getSource() == this.downButton) {
            this.value--;
            this.textField.setText(Integer.toString(this.value));
            firePropertyChange("value", this.value + 1, this.value);
        }
    }

    /**
     * Receives notification of mouse events.
     *
     * @param e  the mouse event.
     */
    public void mouseEntered(final MouseEvent e) {
        // ignored
    }

    /**
     * Receives notification of mouse events.
     *
     * @param e  the mouse event.
     */
    public void mouseExited(final MouseEvent e) {
        // ignored
    }

    /**
     * Receives notification of mouse events.
     *
     * @param e  the mouse event.
     */
    public void mousePressed(final MouseEvent e) {
        // ignored
    }

    /**
     * Receives notification of mouse events.
     *
     * @param e  the mouse event.
     */
    public void mouseReleased(final MouseEvent e) {
        // ignored
    }

}