tooltip.java

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package tool;

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;

	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;
	}

	// }

	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);
			// 载内部面板
			externalPanel.add(innerPanel);
			_message.setForeground(getMessageColor());
			innerPanel.add(_iconLabel, BorderLayout.WEST);
			innerPanel.add(_message, BorderLayout.CENTER);
			getContentPane().add(externalPanel);
		}

		public void animate() {
			new Animation(this).start();
		}
	}

	class Animation extends Thread {
		ToolTipSingle _single;

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

		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);
		}

		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);
			}
		}
	}

	public void setToolTip(Icon icon, String msg) {
		ToolTipSingle single = new ToolTipSingle();
		if (icon != null) {
			single._iconLabel.setIcon(icon);
		}
		single._message.setText(msg);
		single.animate();
	}

	public void setToolTip(String msg) {
		setToolTip(null, msg);

	}

	public Font getMessageFont() {
		return _font;
	}

	public void setMessageFont(Font font) {
		_font = font;
	}

	public Color getBorderColor() {
		return _border;

	}

	public void setBorderColor(Color borderColor) {

		this._border = borderColor;
	}

	public int getDisplayTime() {
		return _displayTime;
	}

	public void setDisplayTime(int displayTime) {
		this._displayTime = displayTime;
	}

	public int getGap() {
		return _gap;
	}

	public void setGap(int gap) {
		this._gap = gap;
	}

	public Color getMessageColor() {
		return _messageColor;
	}

	public void setMessageColor(Color messageColor) {
		this._messageColor = messageColor;
	}

	public int getStep() {
		return _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");
	}
	// }

}
// }