/*
* Copyright (c) 1998, 2014, 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
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*/
package javax.swing.plaf.metal;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Color;
import java.awt.Polygon;
import javax.swing.*;
import javax.swing.plaf.basic.BasicArrowButton;
/**
* JButton object for Metal scrollbar arrows.
* <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. As of 1.4, support for long term storage
* of all JavaBeans™
* has been added to the <code>java.beans</code> package.
* Please see {@link java.beans.XMLEncoder}.
*
* @author Tom Santos
* @author Steve Wilson
*/
@SuppressWarnings("serial") // Same-version serialization only
public class MetalScrollButton extends BasicArrowButton
{
private static Color shadowColor;
private static Color highlightColor;
private boolean isFreeStanding = false;
private int buttonWidth;
/**
* Constructs an instance of {@code MetalScrollButton}.
*
* @param direction the direction
* @param width the width
* @param freeStanding the free standing value
*/
public MetalScrollButton( int direction, int width, boolean freeStanding )
{
super( direction );
shadowColor = UIManager.getColor("ScrollBar.darkShadow");
highlightColor = UIManager.getColor("ScrollBar.highlight");
buttonWidth = width;
isFreeStanding = freeStanding;
}
/**
* Sets the free standing value.
*
* @param freeStanding the free standing value
*/
public void setFreeStanding( boolean freeStanding )
{
isFreeStanding = freeStanding;
}
public void paint( Graphics g )
{
boolean leftToRight = MetalUtils.isLeftToRight(this);
boolean isEnabled = getParent().isEnabled();
Color arrowColor = isEnabled ? MetalLookAndFeel.getControlInfo() : MetalLookAndFeel.getControlDisabled();
boolean isPressed = getModel().isPressed();
int width = getWidth();
int height = getHeight();
int w = width;
int h = height;
int arrowHeight = (height+1) / 4;
int arrowWidth = (height+1) / 2;
if ( isPressed )
{
g.setColor( MetalLookAndFeel.getControlShadow() );
}
else
{
g.setColor( getBackground() );
}
g.fillRect( 0, 0, width, height );
if ( getDirection() == NORTH )
{
if ( !isFreeStanding ) {
height +=1;
g.translate( 0, -1 );
width += 2;
if ( !leftToRight ) {
g.translate( -1, 0 );
}
}
// Draw the arrow
g.setColor( arrowColor );
int startY = ((h+1) - arrowHeight) / 2;
int startX = (w / 2);
g.translate(startX, startY);
g.fillPolygon(new int[]{0, 1, arrowHeight + 1, -arrowHeight},
new int[]{0, 0, arrowHeight, arrowHeight}, 4);
g.translate(-startX, -startY);
if (isEnabled) {
g.setColor( highlightColor );
if ( !isPressed )
{
g.drawLine( 1, 1, width - 3, 1 );
g.drawLine( 1, 1, 1, height - 1 );
}
g.drawLine( width - 1, 1, width - 1, height - 1 );
g.setColor( shadowColor );
g.drawLine( 0, 0, width - 2, 0 );
g.drawLine( 0, 0, 0, height - 1 );
g.drawLine( width - 2, 2, width - 2, height - 1 );
} else {
MetalUtils.drawDisabledBorder(g, 0, 0, width, height+1);
}
if ( !isFreeStanding ) {
height -= 1;
g.translate( 0, 1 );
width -= 2;
if ( !leftToRight ) {
g.translate( 1, 0 );
}
}
}
else if ( getDirection() == SOUTH )
{
if ( !isFreeStanding ) {
height += 1;
width += 2;
if ( !leftToRight ) {
g.translate( -1, 0 );
}
}
// Draw the arrow
g.setColor( arrowColor );
int startY = (((h+1) - arrowHeight) / 2)+ arrowHeight-1;
int startX = (w / 2);
g.translate(startX, startY);
g.fillPolygon(new int[]{0, 1, arrowHeight + 1, -arrowHeight},
new int[]{0, 0, -arrowHeight, -arrowHeight}, 4);
g.translate(-startX, -startY);
if (isEnabled) {
g.setColor( highlightColor );
if ( !isPressed )
{
g.drawLine( 1, 0, width - 3, 0 );
g.drawLine( 1, 0, 1, height - 3 );
}
g.drawLine( 1, height - 1, width - 1, height - 1 );
g.drawLine( width - 1, 0, width - 1, height - 1 );
g.setColor( shadowColor );
g.drawLine( 0, 0, 0, height - 2 );
g.drawLine( width - 2, 0, width - 2, height - 2 );
g.drawLine( 2, height - 2, width - 2, height - 2 );
} else {
MetalUtils.drawDisabledBorder(g, 0,-1, width, height+1);
}
if ( !isFreeStanding ) {
height -= 1;
width -= 2;
if ( !leftToRight ) {
g.translate( 1, 0 );
}
}
}
else if ( getDirection() == EAST )
{
if ( !isFreeStanding ) {
height += 2;
width += 1;
}
// Draw the arrow
g.setColor( arrowColor );
int startX = (((w+1) - arrowHeight) / 2) + arrowHeight-1;
int startY = (h / 2);
g.translate(startX, startY);
g.fillPolygon(new int[]{0, 0, -arrowHeight, -arrowHeight},
new int[]{0, 1, arrowHeight + 1, -arrowHeight}, 4);
g.translate(-startX, -startY);
if (isEnabled) {
g.setColor( highlightColor );
if ( !isPressed )
{
g.drawLine( 0, 1, width - 3, 1 );
g.drawLine( 0, 1, 0, height - 3 );
}
g.drawLine( width - 1, 1, width - 1, height - 1 );
g.drawLine( 0, height - 1, width - 1, height - 1 );
g.setColor( shadowColor );
g.drawLine( 0, 0,width - 2, 0 );
g.drawLine( width - 2, 2, width - 2, height - 2 );
g.drawLine( 0, height - 2, width - 2, height - 2 );
} else {
MetalUtils.drawDisabledBorder(g,-1,0, width+1, height);
}
if ( !isFreeStanding ) {
height -= 2;
width -= 1;
}
}
else if ( getDirection() == WEST )
{
if ( !isFreeStanding ) {
height += 2;
width += 1;
g.translate( -1, 0 );
}
// Draw the arrow
g.setColor( arrowColor );
int startX = (((w+1) - arrowHeight) / 2);
int startY = (h / 2);
g.translate(startX, startY);
g.fillPolygon(new int[]{0, 0, arrowHeight, arrowHeight},
new int[]{0, 1, arrowHeight + 1, -arrowHeight}, 4);
g.translate(-startX, -startY);
if (isEnabled) {
g.setColor( highlightColor );
if ( !isPressed )
{
g.drawLine( 1, 1, width - 1, 1 );
g.drawLine( 1, 1, 1, height - 3 );
}
g.drawLine( 1, height - 1, width - 1, height - 1 );
g.setColor( shadowColor );
g.drawLine( 0, 0, width - 1, 0 );
g.drawLine( 0, 0, 0, height - 2 );
g.drawLine( 2, height - 2, width - 1, height - 2 );
} else {
MetalUtils.drawDisabledBorder(g,0,0, width+1, height);
}
if ( !isFreeStanding ) {
height -= 2;
width -= 1;
g.translate( 1, 0 );
}
}
}
public Dimension getPreferredSize()
{
if ( getDirection() == NORTH )
{
return new Dimension( buttonWidth, buttonWidth - 2 );
}
else if ( getDirection() == SOUTH )
{
return new Dimension( buttonWidth, buttonWidth - (isFreeStanding ? 1 : 2) );
}
else if ( getDirection() == EAST )
{
return new Dimension( buttonWidth - (isFreeStanding ? 1 : 2), buttonWidth );
}
else if ( getDirection() == WEST )
{
return new Dimension( buttonWidth - 2, buttonWidth );
}
else
{
return new Dimension( 0, 0 );
}
}
public Dimension getMinimumSize()
{
return getPreferredSize();
}
public Dimension getMaximumSize()
{
return new Dimension( Integer.MAX_VALUE, Integer.MAX_VALUE );
}
/**
* Returns the width of the button.
*
* @return the width of the button
*/
public int getButtonWidth() {
return buttonWidth;
}
}