content: package tim.prune.load;
  
  import java.awt.Component;
  import java.util.ArrayList;
  
  import tim.prune.data.Field;
  
  /**
   * Class to hold a list of Components and fields,
   * and then enable or disable them (setEnabled) according
   * to whether those fields are available or not
   */
  public class ComponentHider
  {
  	/**
  	 * Inner class to hold each Component and its Field
  	 */
  	static class ComponentPair
  	{
  		public final Component _component;
  		public final Field _field;
  		/** Constructor */
  		public ComponentPair(Component inComponent, Field inField)
  		{
  			_component = inComponent;
  			_field     = inField;
  		}
  	}
  
  	/** list itself */
  	private final ArrayList<ComponentPair> _componentList = new ArrayList<ComponentPair>(20);
  
  	/**
  	 * Add a new component to be controlled
  	 * @param inComponent component to enable/disable
  	 * @param inField associated field
  	 */
  	public void addComponent(Component inComponent, Field inField)
  	{
  		if (inComponent != null && inField != null) {
  			_componentList.add(new ComponentPair(inComponent, inField));
  		}
  	}
  
  	/**
  	 * Enable or disable the components for the given field
  	 * @param inField field
  	 * @param inEnabled true for enabled, false for disabled
  	 */
  	public void enableComponents(Field inField, boolean inEnabled)
  	{
  		for (ComponentPair pair : _componentList)
  		{
  			if (pair != null && pair._field == inField) {
  				pair._component.setEnabled(inEnabled);
  			}
  		}
  	}
  }
  