/*
* 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
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*/
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;
}
}
}