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	/*
	* Copyright (c) 1997, 1998, Oracle and/or its affiliates. All rights reserved.
	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	*
	* This code is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 only, as
	* published by the Free Software Foundation. Oracle designates this
	* particular file as subject to the "Classpath" exception as provided
	* by Oracle in the LICENSE file that accompanied this code.
	*
	* This code 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 General Public License
	* version 2 for more details (a copy is included in the LICENSE file that
	* accompanied this code).
	*
	* You should have received a copy of the GNU General Public License version
	* 2 along with this work; if not, write to the Free Software Foundation,
	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	*
	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
	* or visit www.oracle.com if you need additional information or have any
	* questions.
	*/

	package com.sun.java.swing.plaf.motif;

	import javax.swing.*;
	import javax.swing.event.*;
	import javax.swing.plaf.*;
	import javax.swing.plaf.basic.BasicArrowButton;

	import java.awt.*;
	import java.awt.event.*;

	/**
	* Motif scroll bar button.
	* <p>
	* <strong>Warning:</strong>
	* Serialized objects of this class will not be compatible with
	* future Swing releases. The current serialization support is appropriate
	* for short term storage or RMI between applications running the same
	* version of Swing. A future release of Swing will provide support for
	* long term persistence.
	*/
	public class MotifScrollBarButton extends BasicArrowButton
	{
	private Color darkShadow = UIManager.getColor("controlShadow");
	private Color lightShadow = UIManager.getColor("controlLtHighlight");


	public MotifScrollBarButton(int direction)
	{
	super(direction);

	switch (direction) {
	case NORTH:
	case SOUTH:
	case EAST:
	case WEST:
	this.direction = direction;
	break;
	default:
	throw new IllegalArgumentException("invalid direction");
	}

	setRequestFocusEnabled(false);
	setOpaque(true);
	setBackground(UIManager.getColor("ScrollBar.background"));
	setForeground(UIManager.getColor("ScrollBar.foreground"));
	}


	public Dimension getPreferredSize() {
	switch (direction) {
	case NORTH:
	case SOUTH:
	return new Dimension(11, 12);
	case EAST:
	case WEST:
	default:
	return new Dimension(12, 11);
	}
	}

	public Dimension getMinimumSize() {
	return getPreferredSize();
	}

	public Dimension getMaximumSize() {
	return getPreferredSize();
	}

	public boolean isFocusTraversable() {
	return false;
	}

	public void paint(Graphics g)
	{
	int w = getWidth();
	int h = getHeight();

	if (isOpaque()) {
	g.setColor(getBackground());
	g.fillRect(0, 0, w, h);
	}

	boolean isPressed = getModel().isPressed();
	Color lead = (isPressed) ? darkShadow : lightShadow;
	Color trail = (isPressed) ? lightShadow : darkShadow;
	Color fill = getBackground();

	int cx = w / 2;
	int cy = h / 2;
	int s = Math.min(w, h);

	switch (direction) {
	case NORTH:
	g.setColor(lead);
	g.drawLine(cx, 0, cx, 0);
	for (int x = cx - 1, y = 1, dx = 1; y <= s - 2; y += 2) {
	g.setColor(lead);
	g.drawLine(x, y, x, y);
	if (y >= (s - 2)) {
	g.drawLine(x, y + 1, x, y + 1);
	}
	g.setColor(fill);
	g.drawLine(x + 1, y, x + dx, y);
	if (y < (s - 2)) {
	g.drawLine(x, y + 1, x + dx + 1, y + 1);
	}
	g.setColor(trail);
	g.drawLine(x + dx + 1, y, x + dx + 1, y);
	if (y >= (s - 2)) {
	g.drawLine(x + 1, y + 1, x + dx + 1, y + 1);
	}
	dx += 2;
	x -= 1;
	}
	break;

	case SOUTH:
	g.setColor(trail);
	g.drawLine(cx, s, cx, s);
	for (int x = cx - 1, y = s - 1, dx = 1; y >= 1; y -= 2) {
	g.setColor(lead);
	g.drawLine(x, y, x, y);
	if (y <= 2) {
	g.drawLine(x, y - 1, x + dx + 1, y - 1);
	}
	g.setColor(fill);
	g.drawLine(x + 1, y, x + dx, y);
	if (y > 2) {
	g.drawLine(x, y - 1, x + dx + 1, y - 1);
	}
	g.setColor(trail);
	g.drawLine(x + dx + 1, y, x + dx + 1, y);

	dx += 2;
	x -= 1;
	}
	break;

	case EAST:
	g.setColor(lead);
	g.drawLine(s, cy, s, cy);
	for (int y = cy - 1, x = s - 1, dy = 1; x >= 1; x -= 2) {
	g.setColor(lead);
	g.drawLine(x, y, x, y);
	if (x <= 2) {
	g.drawLine(x - 1, y, x - 1, y + dy + 1);
	}
	g.setColor(fill);
	g.drawLine(x, y + 1, x, y + dy);
	if (x > 2) {
	g.drawLine(x - 1, y, x - 1, y + dy + 1);
	}
	g.setColor(trail);
	g.drawLine(x, y + dy + 1, x, y + dy + 1);

	dy += 2;
	y -= 1;
	}
	break;

	case WEST:
	g.setColor(trail);
	g.drawLine(0, cy, 0, cy);
	for (int y = cy - 1, x = 1, dy = 1; x <= s - 2; x += 2) {
	g.setColor(lead);
	g.drawLine(x, y, x, y);
	if (x >= (s - 2)) {
	g.drawLine(x + 1, y, x + 1, y);
	}
	g.setColor(fill);
	g.drawLine(x, y + 1, x, y + dy);
	if (x < (s - 2)) {
	g.drawLine(x + 1, y, x + 1, y + dy + 1);
	}
	g.setColor(trail);
	g.drawLine(x, y + dy + 1, x, y + dy + 1);
	if (x >= (s - 2)) {
	g.drawLine(x + 1, y + 1, x + 1, y + dy + 1);
	}
	dy += 2;
	y -= 1;
	}
	break;
	}
	}
	}

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