Text Tab Sample : Document HTML « Development Class « Java

Text Tab Sample

Text Tab Sample
Definitive Guide to Swing for Java 2, Second Edition
By John Zukowski     
ISBN: 1-893115-78-X
Publisher: APress

import java.awt.BorderLayout;
import java.awt.Container;

import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTextPane;
import javax.swing.text.BadLocationException;
import javax.swing.text.DefaultStyledDocument;
import javax.swing.text.SimpleAttributeSet;
import javax.swing.text.StyleConstants;
import javax.swing.text.StyledDocument;
import javax.swing.text.TabSet;
import javax.swing.text.TabStop;

public class TextTabSample {
  public static void main(String args[]) {
    JFrame frame = new JFrame("Tab Attributes");
    Container content = frame.getContentPane();

    StyledDocument document = new DefaultStyledDocument();

    int positions[] = { TabStop.ALIGN_BAR, TabStop.ALIGN_CENTER,
    String strings[] = { "\tBAR\n", "\tCENTER\n", "\t3.14159265\n",
        "\tLEFT\n", "\tRIGHT\n" };

    SimpleAttributeSet attributes = new SimpleAttributeSet();

    for (int i = 0, n = positions.length; i < n; i++) {
      TabStop tabstop = new TabStop(150, positions[i], TabStop.LEAD_DOTS);
      try {
        int position = document.getLength();
        document.insertString(position, strings[i], null);
        TabSet tabset = new TabSet(new TabStop[] { tabstop });
        StyleConstants.setTabSet(attributes, tabset);
        document.setParagraphAttributes(position, 1, attributes, false);
      } catch (BadLocationException badLocationException) {

    JTextPane textPane = new JTextPane(document);
    JScrollPane scrollPane = new JScrollPane(textPane);
    content.add(scrollPane, BorderLayout.CENTER);

    frame.setSize(300, 150);


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