tabexample.java

java swing 开发代码

// TabExample.java
// Demonstrate a TabSet in a JTextPane.
package	jswing.ch22;


import javax.swing.*;
import javax.swing.text.*;

public class TabExample {

  public static void main(String[] args) {

    JTextPane pane = new JTextPane();
    TabStop[] tabs = new TabStop[4];
    tabs[0] = new TabStop( 60, TabStop.ALIGN_RIGHT,   TabStop.LEAD_NONE);
    tabs[1] = new TabStop(100, TabStop.ALIGN_LEFT,    TabStop.LEAD_NONE);
    tabs[2] = new TabStop(200, TabStop.ALIGN_CENTER,  TabStop.LEAD_NONE);
    tabs[3] = new TabStop(300, TabStop.ALIGN_DECIMAL, TabStop.LEAD_NONE);
    TabSet tabset = new TabSet(tabs);

    StyleContext sc = StyleContext.getDefaultStyleContext();
    AttributeSet aset =
      sc.addAttribute(SimpleAttributeSet.EMPTY, StyleConstants.TabSet, tabset);
    pane.setParagraphAttributes(aset, false);
    pane.setText("\tright\tleft\tcenter\tdecimal\n"
                +"\t1\t1\t1\t1.0\n"
                +"\t200.002\t200.002\t200.002\t200.002\n"
                +"\t.33\t.33\t.33\t.33\n");

    JFrame frame = new JFrame("TabExample");
    frame.setContentPane(new JScrollPane(pane));
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setSize(360, 120);
    frame.setVisible(true);
  }
}