//AsciiAnim.java

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;

public class AsciiAnim extends JFrame implements ActionListener{
  
  AsciiCanvas cnvAnim = new AsciiCanvas();
  JButton btnPrev = new JButton("prev");
  JButton btnNext = new JButton("next");
  JButton btnSave = new JButton("save");
  JButton btnLoad = new JButton("load");
  JButton btnAnim = new JButton("animate");

  JPanel pnlSouth = new JPanel();
  Timer timer = new Timer(100, this);

  boolean animating = false;

  public AsciiAnim(){
    
    this.setUpGUI(); 
    this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    this.setVisible(true);
    this.setSize(640, 480);
  } // end constructor
  
  public void setUpGUI(){
    //like it says, set up GUI
    Container pnlMain = this.getContentPane();
    
    pnlSouth.setLayout(new FlowLayout());
    pnlMain.add(cnvAnim, BorderLayout.CENTER);
    pnlMain.add(pnlSouth, BorderLayout.SOUTH);

    pnlSouth.add(btnPrev);
    pnlSouth.add(btnNext);
    pnlSouth.add(btnAnim);
    pnlSouth.add(btnSave);
    pnlSouth.add(btnLoad);

    //add action listeners
    btnPrev.addActionListener(this);
    btnNext.addActionListener(this);
    btnAnim.addActionListener(this);
    btnSave.addActionListener(this);
    btnLoad.addActionListener(this);

  } // end setUpGUI

  public void actionPerformed(ActionEvent e){
    if (e.getSource() == btnPrev){
      cnvAnim.prevFrame();
    } else if (e.getSource() == btnNext){  
      cnvAnim.nextFrame();
    } else if (e.getSource() == btnAnim){
      //change the animation status
      if (timer.isRunning()){  
        btnAnim.setText("animate");
        timer.stop();
        this.animating = false;
      } else {
        btnAnim.setText("stop");
        timer.start();
        this.animating = true;
      } // end if
    } else if (e.getSource() == btnSave){  
      cnvAnim.save();
    } else if (e.getSource() == btnLoad){  
      cnvAnim.load();
    } else if (this.animating == true){
      cnvAnim.anim();  
    } else {  
      System.out.println("action not defined");
    } // end if
  } // end actionPerformed

  public static void main(String[] args){
    new AsciiAnim();
  } // end main


} // end class def