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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
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*
* 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).
*
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*
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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.
Warning:
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 java.beans package. Please see XMLEncoder.
Author: Tom Santos, Steve Wilson
/**
* 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 MetalScrollButton. Params: - direction – the direction
- width – the width
- freeStanding – the free standing value
/**
* 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.
Params: - freeStanding – the free standing value
/**
* 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.
Returns: the width of the button
/**
* Returns the width of the button.
*
* @return the width of the button
*/
public int getButtonWidth() {
return buttonWidth;
}
}