Source code: com/obs/gui/swing/interfaces/MoneyTextField.java

   
   package com.obs.gui.swing.interfaces;
   import org.apache.log4j.Logger;
   
   import javax.swing.*;
   import javax.swing.text.MaskFormatter;
   import java.math.BigDecimal;
   import java.text.ParseException;
   
  /**
   * Created by IntelliJ IDEA.
   * User: Owner
   * Date: 12-Jun-2003
   * Time: 11:45:49 PM
   * To change this template use Options | File Templates.
   */
  
  /**
   * JTextField that will ensure data is formatted as currency
   */
  public class MoneyTextField
          extends JFormattedTextField {
  
      // logger
      protected Logger log = Logger.getLogger(MoneyTextField.class);
  
      public MoneyTextField() {
          super();
  
  
          setColumns(8);
          setScrollOffset(0);
  
          MaskFormatter mask = new MaskFormatter();
  
          try {
              mask.setMask("$***.**");
          } catch (ParseException e) {
              log.warn(e);
          }
          mask.setValidCharacters(" 0123456789");
  
          //mask.setAllowsInvalid(false);
          mask.install(this);
      }
  
      public float getAmount() {
  
          StringBuffer text = new StringBuffer(getText());
          text.delete(0, 1);
  
          float amount = 0;
          try {
              amount = Float.parseFloat(text.toString());
          } catch (NumberFormatException e) {
              //log.error("Invalid Number: " + text);
              return 0;
          }
  
          return amount;
      }
  
      public void setAmount(float amount) {
  
          BigDecimal b = new BigDecimal(amount);
          StringBuffer stringAmount = new StringBuffer(b.setScale(2, BigDecimal.ROUND_HALF_UP).toString());
  
          if (amount < 100) {
              stringAmount.insert(0, ' ');
          }
  
          if (amount < 10) {
              stringAmount.insert(0, ' ');
          }
  
          setText(stringAmount.toString());
      }
  }