tooltipsample.java

来自「The Definitive Guide to Java Swing, Thir」· Java 代码 · 共 43 行

JAVA
43
字号
import javax.swing.*;
import java.awt.*;

public class TooltipSample {

  public static void main(final String args[]) {
    Runnable runner = new Runnable() {
      public void run() {
        String title = (args.length==0 ? "Tooltip Sample" : args[0]);
        JFrame frame = new JFrame(title);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        JPanel panel = new JPanel();
        panel.setToolTipText("<HtMl>Tooltip<br>Message");
        frame.add(panel, BorderLayout.CENTER);

JButton button = new JButton("Hello, World") {
  public JToolTip createToolTip() {
    JToolTip tip = super.createToolTip();
    tip.setBackground(Color.YELLOW);
    tip.setForeground(Color.RED);
    return tip;
  }
  public boolean contains(int x, int y) {
    if (x < 100) {
      setToolTipText("Got Green Eggs?");
    } else {
      setToolTipText("Got Ham?");
    }
    return super.contains(x, y);
  }
};
button.setToolTipText("Hello, World");
frame.add(button, BorderLayout.NORTH);

    frame.setSize(300, 150);
    frame.setVisible(true);
      }
    };
    EventQueue.invokeLater(runner);
  }
}

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