package edu.jsu.leathrum.mathlets.shared;
import javax.swing.*;
import java.awt.event.*;

public class ButtonList {

class Listener implements ActionListener {

  public void actionPerformed(ActionEvent e) {
    for (int i=0; i<numActions; i++)
      if (e.getSource() == actionObjectList[i] && actionCallList[i] != null)
        actionCallList[i].doThis();
  }

}

  Listener ll = new Listener();

  final int ACTIONS = 4;
  AbstractButton[] actionObjectList = new AbstractButton[ACTIONS];
  ActionWrapper[] actionCallList = new ActionWrapper[ACTIONS];
  private int numActions=0;

  public void registerButtonAction(AbstractButton item, ActionWrapper call) {
    while (numActions >= actionObjectList.length) {
      AbstractButton[] newobjlist = new AbstractButton[actionObjectList.length+2*ACTIONS];
      for (int i=0; i<actionObjectList.length; i++)
        newobjlist[i]=actionObjectList[i];
      actionObjectList=newobjlist;
      ActionWrapper[] newwrlist = new ActionWrapper[actionCallList.length+2*ACTIONS];
      for (int i=0; i<actionCallList.length; i++)
        newwrlist[i]=actionCallList[i];
      actionCallList=newwrlist;
    }
    item.addActionListener(ll);
    actionObjectList[numActions] = item;
    actionCallList[numActions] = call;
    numActions++;
  }

  public void replaceButtonAction(AbstractButton item, ActionWrapper call) {
    for (int i=0; i<numActions; i++)
      if (actionObjectList[i] == item)
        actionCallList[i] = call;
  }

}