package org.apache.fop.fo;

import org.apache.fop.apps.FOPException;

public class BoxPropShorthandParser extends GenericShorthandParser {

  public BoxPropShorthandParser(ListProperty listprop) {
    super(listprop);
  }

  // Stores 1 to 4 values of same type
  // Set the given property based on the number of values set
  // Example: padding, border-width, border-color, border-style, margin
  protected Property convertValueForProperty(String propName,
    Property.Maker maker, PropertyList propertyList) {
    Property p = null;
    if (propName.indexOf("-top") >= 0) {
      p = getElement(0);
    }
    else if (propName.indexOf("-right") >= 0) {
      p = getElement(count()>1? 1:0);
    }
    else if (propName.indexOf("-bottom") >= 0) {
      p = getElement(count()>2? 2:0);
    }
    else if (propName.indexOf("-left") >= 0) {
      p = getElement(count()>3? 3: (count()>1?1:0));
    }
    // if p not null, try to convert it to a value of the correct type
    if (p != null) {
	return maker.convertShorthandProperty(propertyList, p, null);
    }
    return p;
  }
}