Source Code : BreakIterator for difference locales

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BreakIterator for difference locales

   

import java.awt.Component;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.text.BreakIterator;
import java.util.Locale;
import java.util.Vector;

import javax.swing.ButtonGroup;
import javax.swing.DefaultListCellRenderer;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;

public class IteratorTest extends JPanel {
  protected JComboBox localeButton = new JComboBox(Locale.getAvailableLocales());

  protected JTextArea textArea = new JTextArea(5, 20);

  protected JRadioButton charButton = new JRadioButton("Character", true);

  protected JRadioButton wordButton = new JRadioButton("Word");

  protected JRadioButton lineButton = new JRadioButton("Line");

  protected JRadioButton sentButton = new JRadioButton("Sentence");

  protected JButton refreshButton = new JButton("Refresh");

  protected JList itemList = new JList();

  public static void main(String[] args) {
    JFrame f = new JFrame();
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.setContentPane(new IteratorTest());
    f.pack();
    f.setVisible(true);
  }

  public IteratorTest() {
    localeButton.setRenderer(new LocaleListCellRenderer());
    localeButton.setSelectedItem(Locale.getDefault());
    add(localeButton);
    textArea.setLineWrap(true);
    textArea.setWrapStyleWord(true);

    add(new JScrollPane(textArea));

    add(getTypePanel());
    add(getCountPanel());

    add(new JScrollPane(itemList));
    refreshDisplay();
  }

  protected JPanel getTypePanel() {
    JPanel panel = new JPanel();

    panel.add(charButton);
    panel.add(wordButton);
    panel.add(lineButton);
    panel.add(sentButton);

    ButtonGroup group = new ButtonGroup();
    group.add(charButton);
    group.add(wordButton);
    group.add(lineButton);
    group.add(sentButton);
    return panel;
  }

  protected JPanel getCountPanel() {
    JPanel panel = new JPanel();
    JLabel label = new JLabel("Count:", JLabel.RIGHT);
    panel.add(label);

    Dimension size = panel.getPreferredSize();
    size.width = Math.min(size.width, 100);

    refreshButton.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent event) {
        refreshDisplay();
      }
    });
    panel.add(refreshButton);
    return panel;
  }

  protected void refreshDisplay() {
    int startIndex, nextIndex;
    Vector items = new Vector();
    String msgText = textArea.getText();
    Locale locale = (Locale) (localeButton.getSelectedItem());
    BreakIterator iterator = null;
    if (charButton.isSelected()) {
      iterator = BreakIterator.getCharacterInstance(locale);
    } else if (wordButton.isSelected()) {
      iterator = BreakIterator.getWordInstance(locale);
    } else if (lineButton.isSelected()) {
      iterator = BreakIterator.getLineInstance(locale);
    } else if (sentButton.isSelected()) {
      iterator = BreakIterator.getSentenceInstance(locale);
    }
    iterator.setText(msgText);
    startIndex = iterator.first();
    nextIndex = iterator.next();

    while (nextIndex != BreakIterator.DONE) {
      items.addElement(msgText.substring(startIndex, nextIndex));
      startIndex = nextIndex;
      nextIndex = iterator.next();
    }
    itemList.setListData(items);
  }

}

class LocaleListCellRenderer extends DefaultListCellRenderer {
  public Component getListCellRendererComponent(JList list, Object value, int index,
      boolean isSelected, boolean hasFocus) {
    Locale locale = (Locale) (value);
    return super.getListCellRendererComponent(list, locale.getDisplayName(), index, isSelected,
        hasFocus);
  }
}

   
    
    
  

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