package implementation.source.java.nodes;

import java.awt.Font;

import edu.umd.cs.piccolo.PNode;
import edu.umd.cs.piccolo.event.PBasicInputEventHandler;
import edu.umd.cs.piccolo.event.PInputEvent;
import edu.umd.cs.piccolo.nodes.PText;

public class TypingActionHandler extends PBasicInputEventHandler {
   
   final static int BACKSPACE = 8;
   final static int ARROW_LEFT = 37;
   final static int ARROW_RIGHT = 39;
   
   PText l;
   int caretIndex;
   
   public TypingActionHandler(PText label) {
      l = label;
      caretIndex = l.getText().length();
   }
   
   public void mousePressed(PInputEvent e) {
      e.getInputManager().setKeyboardFocus(e.getPath());
   }
   
   public void keyboardFocusGained(PInputEvent e) {
      l.setFont(new Font("SelectedText", Font.BOLD, l.getFont().getSize()));
      char newChar[] = {'|'};
      l.setText(l.getText().concat(new String(newChar)));
   }
   
   public void keyboardFocusLost(PInputEvent e) {
      PNode node = l.getParent();
      String text = l.getText();
      l.setText(text.substring(0, text.length() == 0 ? 0 : text.length() - 1));
      l.setFont(new Font("UnselectedText", 0, l.getFont().getSize()));
      l.setX(node.getX() + (node.getWidth() / 2) - (l.getWidth() / 2));
      l.setY(node.getY() + (node.getHeight() / 2) - (l.getHeight() / 2));
   }
   
   public void keyTyped(PInputEvent e) {
      if (e.getKeyChar() == BACKSPACE) {
         l.setText(l.getText().substring(0, l.getText().length() == 0 ? 0 : l.getText().length() - 2)); 
      }
      else {
         l.setText(l.getText().substring(0, l.getText().length() == 0 ? 0 : l.getText().length() - 1));
         char newChar[] = {e.getKeyChar()};
         l.setText(l.getText().concat(new String(newChar)));
         //Integer i = new Integer(e.getKeyChar());
         //l.setText(i.toString());
      }
      
      char newChar[] = {'|'};
      l.setText(l.getText().concat(new String(newChar)));
   }
   
   public void keyPressed(PInputEvent e) {
      if (e.getKeyCode() == ARROW_LEFT) {
      }
      else if (e.getKeyCode() == ARROW_RIGHT) {
      }
      //Integer i = new Integer(e.getKeyCode());
      //l.setText(i.toString());
   }
}