package edu.jsu.leathrum.mathlets.shared;
import java.text.ParsePosition;
import java.text.DecimalFormat;

public class IntInputSet extends InputSet implements FieldHandler {

  public IntInputSet(String namestr, int size) {
    super(namestr, size);
  }

  private int val = 0;

  public int getValue() {
    Number n = AMathlet.getNumberFormat().parse(getInput(), new ParsePosition(0));
    if ((n == null) || (getInput().length() == 0)) setValue(0);
    else val = n.intValue();
    return val;
  }

  public void setValue(int x) {
    val = x;
    DecimalFormat nf = (DecimalFormat) AMathlet.getNumberFormat().clone();
    nf.setMinimumFractionDigits(0);
    nf.setMaximumFractionDigits(0);
    super.setInputText(nf.format(val));
    this.repaint();
    super.select(0,0);
  }
  
  private int  def = 0;

  // need to override InputSet's versions of these to allow Locale data
  public void setDefault(String dval) {
    def = AMathlet.getNumberFormat().parse(dval, new ParsePosition(0)).intValue();
  }

  // this isn't part of the interface, but it seemed like a good idea here
  public void setDefault(int dval) {
    def = dval;
  }

  public void setToDefault() {
    setValue(def);
  }

  public void setField(String val) {
    setValue(AMathlet.getNumberFormat().parse(val, new ParsePosition(0)).intValue());
  }

  public String getField() {
    DecimalFormat nf = (DecimalFormat) AMathlet.getNumberFormat().clone();
    nf.setMinimumFractionDigits(0);
    nf.setMaximumFractionDigits(0);
    return nf.format(val);
  }
}