swing components－会话框ToolTip
效果：一、
二、
代码：
一、
package
azure.ui.swing.components.tooltip;
import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.RenderingHints;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.geom.Area;
import java.awt.geom.Ellipse2D;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLayeredPane;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
/**
* @author Azure
* @version 1.0 14/03/07
*/
public class AzEllipseToolTipExample extends JFrame {
public AzEllipseToolTipExample() {
init();
}
public void init() {
HalfOpaqueToolTip tooltip = new HalfOpaqueToolTip( " 让我再吻一吻你的脸！ " ,
new Color( 250 , 250 , 200 ), Color.RED, new Color( 95 , 145 , 145 ),
this );
JButton button = new JButton( " swing " );
button.addMouseListener(tooltip);
this .setLayout( new FlowLayout());
this .add( new JButton( " 金 " ));
this .add( new JButton( " 木 " ));
this .add( new JButton( " 水 " ));
this .add( new JButton( " 火 " ));
this .add( new JButton( " 土 " ));
this .add( new JButton( " 风 " ));
this .add( new JButton( " 雨 " ));
this .add( new JButton( " 雷 " ));
this .add( new JButton( " 电 " ));
this .add( new JButton( " 天 " ));
this .add( new JButton( " 地 " ));
this .add( new JButton( " 乾 " ));
this .add( new JButton( " 坤 " ));
this .add(button);
this .add( new JButton( " 春 " ));
this .add( new JButton( " 夏 " ));
this .setSize( 380 , 200 );
this .setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this .setLocationRelativeTo( null );
this .setVisible( true );
}
public static void main(String args[]) {
new AzEllipseToolTipExample();
}
class HalfOpaqueToolTip extends JPanel implements MouseListener {
private Color backGroundCol = null ;
private Color foregroundColorCol = null ;
private Color borderCol = null ;
private String content = null ;
private JFrame frame = null ;
private int contentEllipseX = 30 ;
private int contentEllipseY = 20 ;
private int contentEllipseW = 0 ;
private int contentEllipseH = 0 ;
private int LEFT = 1 ;
private int RIGHT = 2 ;
private int direction = 2 ;
public HalfOpaqueToolTip(String tooltipContent, Color backGroundColor,
Color foregroundColor, Color borderColor, JFrame frame) {
content = tooltipContent;
backGroundCol = backGroundColor;
foregroundColorCol = foregroundColor;
borderCol = borderColor;
/*
* 调整tooltip的大小
*/
content = tooltipContent;
contentEllipseW = tooltipContent.getBytes().length * 6 + 10 ;
contentEllipseH = 40 ;
this .setSize(contentEllipseX + contentEllipseW + 1 , 90 );
this .setOpaque( false );
this .setVisible( false );
// 将本控件置于界面的最顶层
frame.getLayeredPane().add( this , JLayeredPane.POPUP_LAYER);
this .frame = frame;
}
protected void paintComponent(Graphics g) {
super .paintComponent(g);
Graphics2D g2d = (Graphics2D) g;
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
g2d.setColor(backGroundCol);
AlphaComposite composite = AlphaComposite.getInstance(
AlphaComposite.SRC_OVER, 70 / 100.0F );
g2d.setComposite(composite);
g2d.fill(getArea());
// 恢复到默认情况
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_OFF);
g2d.setColor(foregroundColorCol);
if (direction == LEFT) {
g2d.drawString(content, ( int ) this .getSize().getWidth()
- contentEllipseX - contentEllipseW + 10 ,
contentEllipseY + contentEllipseH / 2 + 5 );
} else {
g2d.drawString(content, contentEllipseX + 10 , contentEllipseY
+ contentEllipseH / 2 + 5 );
}
}
protected void paintBorder(Graphics g) {
super .paintBorder(g);
Graphics2D g2d = (Graphics2D) g;
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
g2d.setColor(borderCol);
g2d.draw(getArea());
}
private Area getArea() {
if (direction == LEFT) {
return getLeftArea();
} else {
return getRightArea();
}
}
private Area getLeftArea() {
Area area = new Area( new Ellipse2D.Float(( int ) this .getSize()
.getWidth() - 6 - 1 , ( int ) this .getSize().getHeight() - 20 ,
6 , 6 ));
area.add( new Area( new Ellipse2D.Float(( int ) this .getSize()
.getWidth() - 10 - 30 + 1 ,
( int ) this .getSize().getHeight() - 35 , 30 , 15 )));
area.add( new Area( new Ellipse2D.Float(( int ) this .getSize()
.getWidth()
- contentEllipseX - contentEllipseW + 1 , contentEllipseY,
contentEllipseW, contentEllipseH)));
return area;
}
private Area getRightArea() {
Area area = new Area( new Ellipse2D.Float( 0 , ( int ) this .getSize()
.getHeight() - 20 , 6 , 6 ));
area.add( new Area( new Ellipse2D.Float( 10 , ( int ) this .getSize()
.getHeight() - 35 , 30 , 15 )));
area.add( new Area( new Ellipse2D.Float(contentEllipseX,
contentEllipseY, contentEllipseW, contentEllipseH)));
return area;
}
public void mouseEntered(MouseEvent e) {
Point p = e.getLocationOnScreen();
SwingUtilities.convertPointFromScreen(p, e.getComponent()
.getParent());
if (p.x + this .getWidth() > frame.getX()) {
direction = LEFT;
this .setLocation( new Point(p.x - this .getWidth(), p.y
- this .getHeight()));
} else {
direction = RIGHT;
this .setLocation( new Point(p.x, p.y - this .getHeight()));
}
this .setVisible( true );
}
public void mouseExited(MouseEvent e) {
this .setVisible( false );
}
public void mouseClicked(MouseEvent e) {
}
public void mousePressed(MouseEvent e) {
}
public void mouseReleased(MouseEvent e) {
}
}
}
import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.RenderingHints;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.geom.Area;
import java.awt.geom.Ellipse2D;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLayeredPane;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
/**
* @author Azure
* @version 1.0 14/03/07
*/
public class AzEllipseToolTipExample extends JFrame {
public AzEllipseToolTipExample() {
init();
}
public void init() {
HalfOpaqueToolTip tooltip = new HalfOpaqueToolTip( " 让我再吻一吻你的脸！ " ,
new Color( 250 , 250 , 200 ), Color.RED, new Color( 95 , 145 , 145 ),
this );
JButton button = new JButton( " swing " );
button.addMouseListener(tooltip);
this .setLayout( new FlowLayout());
this .add( new JButton( " 金 " ));
this .add( new JButton( " 木 " ));
this .add( new JButton( " 水 " ));
this .add( new JButton( " 火 " ));
this .add( new JButton( " 土 " ));
this .add( new JButton( " 风 " ));
this .add( new JButton( " 雨 " ));
this .add( new JButton( " 雷 " ));
this .add( new JButton( " 电 " ));
this .add( new JButton( " 天 " ));
this .add( new JButton( " 地 " ));
this .add( new JButton( " 乾 " ));
this .add( new JButton( " 坤 " ));
this .add(button);
this .add( new JButton( " 春 " ));
this .add( new JButton( " 夏 " ));
this .setSize( 380 , 200 );
this .setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this .setLocationRelativeTo( null );
this .setVisible( true );
}
public static void main(String args[]) {
new AzEllipseToolTipExample();
}
class HalfOpaqueToolTip extends JPanel implements MouseListener {
private Color backGroundCol = null ;
private Color foregroundColorCol = null ;
private Color borderCol = null ;
private String content = null ;
private JFrame frame = null ;
private int contentEllipseX = 30 ;
private int contentEllipseY = 20 ;
private int contentEllipseW = 0 ;
private int contentEllipseH = 0 ;
private int LEFT = 1 ;
private int RIGHT = 2 ;
private int direction = 2 ;
public HalfOpaqueToolTip(String tooltipContent, Color backGroundColor,
Color foregroundColor, Color borderColor, JFrame frame) {
content = tooltipContent;
backGroundCol = backGroundColor;
foregroundColorCol = foregroundColor;
borderCol = borderColor;
/*
* 调整tooltip的大小
*/
content = tooltipContent;
contentEllipseW = tooltipContent.getBytes().length * 6 + 10 ;
contentEllipseH = 40 ;
this .setSize(contentEllipseX + contentEllipseW + 1 , 90 );
this .setOpaque( false );
this .setVisible( false );
// 将本控件置于界面的最顶层
frame.getLayeredPane().add( this , JLayeredPane.POPUP_LAYER);
this .frame = frame;
}
protected void paintComponent(Graphics g) {
super .paintComponent(g);
Graphics2D g2d = (Graphics2D) g;
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
g2d.setColor(backGroundCol);
AlphaComposite composite = AlphaComposite.getInstance(
AlphaComposite.SRC_OVER, 70 / 100.0F );
g2d.setComposite(composite);
g2d.fill(getArea());
// 恢复到默认情况
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_OFF);
g2d.setColor(foregroundColorCol);
if (direction == LEFT) {
g2d.drawString(content, ( int ) this .getSize().getWidth()
- contentEllipseX - contentEllipseW + 10 ,
contentEllipseY + contentEllipseH / 2 + 5 );
} else {
g2d.drawString(content, contentEllipseX + 10 , contentEllipseY
+ contentEllipseH / 2 + 5 );
}
}
protected void paintBorder(Graphics g) {
super .paintBorder(g);
Graphics2D g2d = (Graphics2D) g;
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
g2d.setColor(borderCol);
g2d.draw(getArea());
}
private Area getArea() {
if (direction == LEFT) {
return getLeftArea();
} else {
return getRightArea();
}
}
private Area getLeftArea() {
Area area = new Area( new Ellipse2D.Float(( int ) this .getSize()
.getWidth() - 6 - 1 , ( int ) this .getSize().getHeight() - 20 ,
6 , 6 ));
area.add( new Area( new Ellipse2D.Float(( int ) this .getSize()
.getWidth() - 10 - 30 + 1 ,
( int ) this .getSize().getHeight() - 35 , 30 , 15 )));
area.add( new Area( new Ellipse2D.Float(( int ) this .getSize()
.getWidth()
- contentEllipseX - contentEllipseW + 1 , contentEllipseY,
contentEllipseW, contentEllipseH)));
return area;
}
private Area getRightArea() {
Area area = new Area( new Ellipse2D.Float( 0 , ( int ) this .getSize()
.getHeight() - 20 , 6 , 6 ));
area.add( new Area( new Ellipse2D.Float( 10 , ( int ) this .getSize()
.getHeight() - 35 , 30 , 15 )));
area.add( new Area( new Ellipse2D.Float(contentEllipseX,
contentEllipseY, contentEllipseW, contentEllipseH)));
return area;
}
public void mouseEntered(MouseEvent e) {
Point p = e.getLocationOnScreen();
SwingUtilities.convertPointFromScreen(p, e.getComponent()
.getParent());
if (p.x + this .getWidth() > frame.getX()) {
direction = LEFT;
this .setLocation( new Point(p.x - this .getWidth(), p.y
- this .getHeight()));
} else {
direction = RIGHT;
this .setLocation( new Point(p.x, p.y - this .getHeight()));
}
this .setVisible( true );
}
public void mouseExited(MouseEvent e) {
this .setVisible( false );
}
public void mouseClicked(MouseEvent e) {
}
public void mousePressed(MouseEvent e) {
}
public void mouseReleased(MouseEvent e) {
}
}
}
二、
package
azure.ui.swing.components.tooltip;
import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.Polygon;
import java.awt.RenderingHints;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.geom.Area;
import java.awt.geom.RoundRectangle2D;
import java.util.StringTokenizer;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLayeredPane;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
/**
* @author Azure
* @version 1.0 14/03/07
*/
public class AzPolygonToolTipExample extends JFrame {
public AzPolygonToolTipExample() {
init();
}
public void init() {
HalfOpaqueToolTip tooltip = new HalfOpaqueToolTip(
" 让我再吻一吻你的脸！ " , new Color( 250 , 250 , 200 ),
Color.RED, new Color( 95 , 145 , 145 ), this );
JButton button = new JButton( " swing " );
button.addMouseListener(tooltip);
this .setLayout( new FlowLayout());
this .add( new JButton( " 金 " ));
this .add( new JButton( " 木 " ));
this .add( new JButton( " 水 " ));
this .add( new JButton( " 火 " ));
this .add( new JButton( " 土 " ));
this .add( new JButton( " 风 " ));
this .add( new JButton( " 雨 " ));
this .add( new JButton( " 雷 " ));
this .add( new JButton( " 电 " ));
this .add( new JButton( " 天 " ));
this .add( new JButton( " 地 " ));
this .add( new JButton( " 乾 " ));
this .add( new JButton( " 坤 " ));
this .add(button);
this .setSize( 380 , 200 );
this .setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this .setLocationRelativeTo( null );
this .setVisible( true );
}
public static void main(String args[]) {
new AzPolygonToolTipExample();
}
class HalfOpaqueToolTip extends JPanel implements MouseListener {
private Color backGroundCol = null ;
private Color foregroundColorCol = null ;
private Color borderCol = null ;
private String content = null ;
private JFrame frame = null ;
private int LEFT = 1 ;
private int RIGHT = 2 ;
private int direction = 2 ;
public HalfOpaqueToolTip(String tooltipContent, Color backGroundColor,
Color foregroundColor, Color borderColor, JFrame frame) {
content = tooltipContent;
backGroundCol = backGroundColor;
foregroundColorCol = foregroundColor;
borderCol = borderColor;
/*
* 调整tooltip的大小
*/
int fristRowIndex = tooltipContent.indexOf( " \n " );
String tooltipStr = "" ;
if (fristRowIndex > 0 ) {
tooltipStr = tooltipContent.substring( 0 , tooltipContent
.indexOf( " \n " ));
} else {
tooltipStr = tooltipContent;
}
this
.setSize(tooltipStr.length() * this .getFont().getSize()
+ 20 , new StringTokenizer(tooltipContent, " \n " )
.countTokens() * 20 + 20 ); // 左右各留10的空白空间
this .setOpaque( false );
this .setVisible( false );
// 将本控件置于界面的最顶层
frame.getLayeredPane().add( this , JLayeredPane.POPUP_LAYER);
this .frame = frame;
}
protected void paintComponent(Graphics g) {
super .paintComponent(g);
Graphics2D g2d = (Graphics2D) g;
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
g2d.setColor(backGroundCol);
AlphaComposite composite = AlphaComposite.getInstance(
AlphaComposite.SRC_OVER, 70 / 100.0F );
g2d.setComposite(composite);
g2d.fill(getArea());
g2d.setColor(foregroundColorCol);
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_OFF);
/*
* 画上字符内容
*/
StringTokenizer contentTokenizer = new StringTokenizer(content,
" \n " );
int contentStartY = 20 ;
while (contentTokenizer.hasMoreElements()) {
g2d.drawString(contentTokenizer.nextToken(), 10 , contentStartY);
contentStartY = contentStartY + 20 ;
}
}
protected void paintBorder(Graphics g) {
super .paintBorder(g);
Graphics2D g2d = (Graphics2D) g;
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
g2d.setColor(borderCol);
g2d.draw(getArea());
}
private Area getArea() {
if (direction == LEFT) {
return getLeftArea();
} else {
return getRightArea();
}
}
private Area getLeftArea() {
Area area = new Area( new RoundRectangle2D.Float( 0 , 0 , this
.getWidth() - 1 , this .getHeight() - 10 , 10 , 10 ));
Polygon polygon = new Polygon();
polygon.addPoint( this .getWidth() - 25 , this .getHeight() - 10 );
polygon.addPoint( this .getWidth() - 10 , this .getHeight() - 10 );
polygon.addPoint( this .getWidth(), this .getHeight());
area.add( new Area(polygon));
return area;
}
private Area getRightArea() {
Area area = new Area( new RoundRectangle2D.Float( 0 , 0 , this
.getWidth() - 1 , this .getHeight() - 10 , 10 , 10 ));
Polygon polygon = new Polygon();
polygon.addPoint( 25 , this .getHeight() - 10 );
polygon.addPoint( 10 , this .getHeight() - 10 );
polygon.addPoint( 0 , this .getHeight());
area.add( new Area(polygon));
return area;
}
public void mouseEntered(MouseEvent e) {
Point p = e.getComponent().getLocationOnScreen();
SwingUtilities.convertPointFromScreen(p, e.getComponent()
.getParent());
if (p.x + this .getWidth() > frame.getX()) {
direction = LEFT;
this .setLocation( new Point(p.x - this .getWidth() + 10 , p.y
- this .getHeight() + 10 ));
} else {
direction = RIGHT;
this .setLocation( new Point(p.x + e.getComponent().getWidth(),
p.y - this .getHeight() + 10 ));
}
this .setVisible( true );
}
public void mouseExited(MouseEvent e) {
this .setVisible( false );
}
public void mouseClicked(MouseEvent e) {
}
public void mousePressed(MouseEvent e) {
}
public void mouseReleased(MouseEvent e) {
}
}
}
import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.Polygon;
import java.awt.RenderingHints;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.geom.Area;
import java.awt.geom.RoundRectangle2D;
import java.util.StringTokenizer;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLayeredPane;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
/**
* @author Azure
* @version 1.0 14/03/07
*/
public class AzPolygonToolTipExample extends JFrame {
public AzPolygonToolTipExample() {
init();
}
public void init() {
HalfOpaqueToolTip tooltip = new HalfOpaqueToolTip(
" 让我再吻一吻你的脸！ " , new Color( 250 , 250 , 200 ),
Color.RED, new Color( 95 , 145 , 145 ), this );
JButton button = new JButton( " swing " );
button.addMouseListener(tooltip);
this .setLayout( new FlowLayout());
this .add( new JButton( " 金 " ));
this .add( new JButton( " 木 " ));
this .add( new JButton( " 水 " ));
this .add( new JButton( " 火 " ));
this .add( new JButton( " 土 " ));
this .add( new JButton( " 风 " ));
this .add( new JButton( " 雨 " ));
this .add( new JButton( " 雷 " ));
this .add( new JButton( " 电 " ));
this .add( new JButton( " 天 " ));
this .add( new JButton( " 地 " ));
this .add( new JButton( " 乾 " ));
this .add( new JButton( " 坤 " ));
this .add(button);
this .setSize( 380 , 200 );
this .setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this .setLocationRelativeTo( null );
this .setVisible( true );
}
public static void main(String args[]) {
new AzPolygonToolTipExample();
}
class HalfOpaqueToolTip extends JPanel implements MouseListener {
private Color backGroundCol = null ;
private Color foregroundColorCol = null ;
private Color borderCol = null ;
private String content = null ;
private JFrame frame = null ;
private int LEFT = 1 ;
private int RIGHT = 2 ;
private int direction = 2 ;
public HalfOpaqueToolTip(String tooltipContent, Color backGroundColor,
Color foregroundColor, Color borderColor, JFrame frame) {
content = tooltipContent;
backGroundCol = backGroundColor;
foregroundColorCol = foregroundColor;
borderCol = borderColor;
/*
* 调整tooltip的大小
*/
int fristRowIndex = tooltipContent.indexOf( " \n " );
String tooltipStr = "" ;
if (fristRowIndex > 0 ) {
tooltipStr = tooltipContent.substring( 0 , tooltipContent
.indexOf( " \n " ));
} else {
tooltipStr = tooltipContent;
}
this
.setSize(tooltipStr.length() * this .getFont().getSize()
+ 20 , new StringTokenizer(tooltipContent, " \n " )
.countTokens() * 20 + 20 ); // 左右各留10的空白空间
this .setOpaque( false );
this .setVisible( false );
// 将本控件置于界面的最顶层
frame.getLayeredPane().add( this , JLayeredPane.POPUP_LAYER);
this .frame = frame;
}
protected void paintComponent(Graphics g) {
super .paintComponent(g);
Graphics2D g2d = (Graphics2D) g;
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
g2d.setColor(backGroundCol);
AlphaComposite composite = AlphaComposite.getInstance(
AlphaComposite.SRC_OVER, 70 / 100.0F );
g2d.setComposite(composite);
g2d.fill(getArea());
g2d.setColor(foregroundColorCol);
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_OFF);
/*
* 画上字符内容
*/
StringTokenizer contentTokenizer = new StringTokenizer(content,
" \n " );
int contentStartY = 20 ;
while (contentTokenizer.hasMoreElements()) {
g2d.drawString(contentTokenizer.nextToken(), 10 , contentStartY);
contentStartY = contentStartY + 20 ;
}
}
protected void paintBorder(Graphics g) {
super .paintBorder(g);
Graphics2D g2d = (Graphics2D) g;
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
g2d.setColor(borderCol);
g2d.draw(getArea());
}
private Area getArea() {
if (direction == LEFT) {
return getLeftArea();
} else {
return getRightArea();
}
}
private Area getLeftArea() {
Area area = new Area( new RoundRectangle2D.Float( 0 , 0 , this
.getWidth() - 1 , this .getHeight() - 10 , 10 , 10 ));
Polygon polygon = new Polygon();
polygon.addPoint( this .getWidth() - 25 , this .getHeight() - 10 );
polygon.addPoint( this .getWidth() - 10 , this .getHeight() - 10 );
polygon.addPoint( this .getWidth(), this .getHeight());
area.add( new Area(polygon));
return area;
}
private Area getRightArea() {
Area area = new Area( new RoundRectangle2D.Float( 0 , 0 , this
.getWidth() - 1 , this .getHeight() - 10 , 10 , 10 ));
Polygon polygon = new Polygon();
polygon.addPoint( 25 , this .getHeight() - 10 );
polygon.addPoint( 10 , this .getHeight() - 10 );
polygon.addPoint( 0 , this .getHeight());
area.add( new Area(polygon));
return area;
}
public void mouseEntered(MouseEvent e) {
Point p = e.getComponent().getLocationOnScreen();
SwingUtilities.convertPointFromScreen(p, e.getComponent()
.getParent());
if (p.x + this .getWidth() > frame.getX()) {
direction = LEFT;
this .setLocation( new Point(p.x - this .getWidth() + 10 , p.y
- this .getHeight() + 10 ));
} else {
direction = RIGHT;
this .setLocation( new Point(p.x + e.getComponent().getWidth(),
p.y - this .getHeight() + 10 ));
}
this .setVisible( true );
}
public void mouseExited(MouseEvent e) {
this .setVisible( false );
}
public void mouseClicked(MouseEvent e) {
}
public void mousePressed(MouseEvent e) {
}
public void mouseReleased(MouseEvent e) {
}
}
}