Java气泡提示功能实现

一个用Swing实现的java气泡提示效果。

运行效果如下图：



package org.loon.swing.display;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Font;
import java.awt.GraphicsEnvironment;
import java.awt.Insets;
import java.awt.Rectangle;
import javax.swing.BorderFactory;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextArea;
import javax.swing.JWindow;
import javax.swing.border.EtchedBorder;
public class ToolTip {

// 气泡提示宽
private int _width = 300;

// 气泡提示高
private int _height = 100;

// 设定循环的步长
private int _step = 30;

// 每步时间
private int _stepTime = 30;

// 显示时间
private int _displayTime = 6000;

// 目前申请的气泡提示数量
private int _countOfToolTip = 0;

// 当前最大气泡数
private int _maxToolTip = 0;

// 在屏幕上显示的最大气泡提示数量
private int _maxToolTipSceen;

// 字体
private Font _font;

// 边框颜色
private Color _bgColor;

// 背景颜色
private Color _border;

// 消息颜色
private Color _messageColor;

// 差值设定
int _gap;

// 是否要求至顶（jre1.5以上版本方可执行）
boolean _useTop = true;

/**
* 构造函数，初始化默认气泡提示设置
*
*/
public ToolTip() {
// 设定字体
_font = new Font("宋体", 0, 12);
// 设定边框颜色
_bgColor = new Color(255, 255, 225);
_border = Color.BLACK;
_messageColor = Color.BLACK;
_useTop = true;
// 通过调用方法，强制获知是否支持自动窗体置顶
try {
JWindow.class.getMethod("setAlwaysOnTop",
new Class[] { Boolean.class });
} catch (Exception e) {
_useTop = false;
}

}

/**
* 重构JWindow用于显示单一气泡提示框
*
*/
class ToolTipSingle extends JWindow {
private static final long serialVersionUID = 1L;

private JLabel _iconLabel = new JLabel();

private JTextArea _message = new JTextArea();

public ToolTipSingle() {
initComponents();
}

private void initComponents() {
setSize(_width, _height);
_message.setFont(getMessageFont());
JPanel externalPanel = new JPanel(new BorderLayout(1, 1));
externalPanel.setBackground(_bgColor);
// 通过设定水平与垂直差值获得内部面板
JPanel innerPanel = new JPanel(new BorderLayout(getGap(), getGap()));
innerPanel.setBackground(_bgColor);
_message.setBackground(_bgColor);
_message.setMargin(new Insets(4, 4, 4, 4));
_message.setLineWrap(true);
_message.setWrapStyleWord(true);
// 创建具有指定高亮和阴影颜色的阴刻浮雕化边框
EtchedBorder etchedBorder = (EtchedBorder) BorderFactory
.createEtchedBorder();
// 设定外部面板内容边框为风化效果
externalPanel.setBorder(etchedBorder);
// 加载内部面板
externalPanel.add(innerPanel);
_message.setForeground(getMessageColor());
innerPanel.add(_iconLabel, BorderLayout.WEST);
innerPanel.add(_message, BorderLayout.CENTER);
getContentPane().add(externalPanel);
}

/**
* 动画开始
*
*/
public void animate() {
new Animation(this).start();
}

}

/**
* 此类处则动画处理
*
*/
class Animation extends Thread {

ToolTipSingle _single;

public Animation(ToolTipSingle single) {
this._single = single;
}

/**
* 调用动画效果，移动窗体坐标
*
* @param posx
* @param startY
* @param endY
* @throws InterruptedException
*/
private void animateVertically(int posx, int startY, int endY)
throws InterruptedException {
_single.setLocation(posx, startY);
if (endY < startY) {
for (int i = startY; i > endY; i -= _step) {
_single.setLocation(posx, i);
Thread.sleep(_stepTime);
}
} else {
for (int i = startY; i < endY; i += _step) {
_single.setLocation(posx, i);
Thread.sleep(_stepTime);
}
}
_single.setLocation(posx, endY);
}

/**
* 开始动画处理
*/
public void run() {
try {
boolean animate = true;
GraphicsEnvironment ge = GraphicsEnvironment
.getLocalGraphicsEnvironment();
Rectangle screenRect = ge.getMaximumWindowBounds();
int screenHeight = (int) screenRect.height;
int startYPosition;
int stopYPosition;
if (screenRect.y > 0) {
animate = false;
}
_maxToolTipSceen = screenHeight / _height;
int posx = (int) screenRect.width - _width - 1;
_single.setLocation(posx, screenHeight);
_single.setVisible(true);
if (_useTop) {
_single.setAlwaysOnTop(true);
}
if (animate) {
startYPosition = screenHeight;
stopYPosition = startYPosition - _height - 1;
if (_countOfToolTip > 0) {
stopYPosition = stopYPosition
- (_maxToolTip % _maxToolTipSceen * _height);
} else {
_maxToolTip = 0;
}
} else {
startYPosition = screenRect.y - _height;
stopYPosition = screenRect.y;

if (_countOfToolTip > 0) {
stopYPosition = stopYPosition
+ (_maxToolTip % _maxToolTipSceen * _height);
} else {
_maxToolTip = 0;
}
}

_countOfToolTip++;
_maxToolTip++;

animateVertically(posx, startYPosition, stopYPosition);
Thread.sleep(_displayTime);
animateVertically(posx, stopYPosition, startYPosition);

_countOfToolTip--;
_single.setVisible(false);
_single.dispose();
} catch (Exception e) {
throw new RuntimeException(e);
}
}
}

/**
* 设定显示的图片及信息
*
* @param icon
* @param msg
*/
public void setToolTip(Icon icon, String msg) {
ToolTipSingle single = new ToolTipSingle();
if (icon != null) {
single._iconLabel.setIcon(icon);
}
single._message.setText(msg);
single.animate();
}

/**
* 设定显示的信息
*
* @param msg
*/
public void setToolTip(String msg) {
setToolTip(null, msg);
}

/**
* 获得当前消息字体
*
* @return
*/
public Font getMessageFont() {
return _font;
}

/**
* 设置当前消息字体
*
* @param font
*/
public void setMessageFont(Font font) {
_font = font;
}

/**
* 获得边框颜色
*
* @return
*/
public Color getBorderColor() {
return _border;
}

/**
* 设置边框颜色
*
* @param _bgColor
*/
public void setBorderColor(Color borderColor) {
this._border = borderColor;
}

/**
* 获得显示时间
*
* @return
*/
public int getDisplayTime() {
return _displayTime;
}

/**
* 设置显示时间
*
* @param displayTime
*/
public void setDisplayTime(int displayTime) {
this._displayTime = displayTime;
}

/**
* 获得差值
*
* @return
*/
public int getGap() {
return _gap;
}

/**
* 设定差值
*
* @param gap
*/
public void setGap(int gap) {
this._gap = gap;
}

/**
* 获得信息颜色
*
* @return
*/
public Color getMessageColor() {
return _messageColor;
}

/**
* 设定信息颜色
*
* @param messageColor
*/
public void setMessageColor(Color messageColor) {
this._messageColor = messageColor;
}

/**
* 获得循环步长
*
* @return
*/
public int getStep() {
return _step;
}

/**
* 设定循环步长
*
* @param _step
*/
public void setStep(int _step) {
this._step = _step;
}

public int getStepTime() {
return _stepTime;
}

public void setStepTime(int _stepTime) {
this._stepTime = _stepTime;
}

public Color getBackgroundColor() {
return _bgColor;
}

public void setBackgroundColor(Color bgColor) {
this._bgColor = bgColor;
}

public int getHeight() {
return _height;
}

public void setHeight(int height) {
this._height = height;
}

public int getWidth() {
return _width;
}

public void setWidth(int width) {
this._width = width;
}

public static void main(String[] args) {

ToolTip tip = new ToolTip();
tip.setToolTip(new ImageIcon("test.jpg"),"“程序员”就是特指越写程序身材越“圆”那群人 -- cping1982");

}

}