//LetterDraw.java
//Demonstrates mouse, keyboard input
//Andy Harris, 05/00

import java.awt.*;
import java.applet.*;
import java.awt.event.*;

public class Draw extends Applet implements MouseListener, KeyListener, MouseMotionListener{

  int currentX = 100;
  int currentY = 100;
  String currentChar = "A";
  Graphics drawSurface; 

  public void init(){
    this.requestFocus();
    addMouseListener(this);
    addMouseMotionListener(this);
    addKeyListener(this);
    drawSurface = this.getGraphics();
  } // end init
  
  public void mouseClicked(MouseEvent e){
    System.out.println(e);
    currentX = e.getX();
    currentY = e.getY();
    drawSurface.drawString(currentChar, currentX, currentY);
  } // end mouse event

  public void mouseEntered(MouseEvent e){
    //do nothing
  } // end mouse event

  public void mouseExited(MouseEvent e){
    //do nothing
  } // end mouse event

  public void mousePressed(MouseEvent e){
    //do nothing
  } // end mouse event

  public void mouseReleased(MouseEvent e){
    mouseClicked(e);
  } // end mouse event

  public void mouseDragged(MouseEvent e){
    mouseClicked(e);
  } // end mouseDragged

  public void mouseMoved(MouseEvent e){
    // do nothing
  } // end mouseMoved

  public void keyPressed(KeyEvent e){
    System.out.println(e);
    //Trap for function keys
    switch (e.getKeyCode()){
      case KeyEvent.VK_F1:
        drawSurface.setFont(new Font("SansSerif", Font.BOLD, 10));
        break;
      case KeyEvent.VK_F2:
        drawSurface.setFont(new Font("SansSerif", Font.BOLD, 14));
        break;
      case KeyEvent.VK_F3:
        drawSurface.setFont(new Font("SansSerif", Font.BOLD, 18));
        break;
      case KeyEvent.VK_F4:
        drawSurface.setFont(new Font("SansSerif", Font.BOLD, 24));
        break;
    } // end switch

    if (e.isControlDown()){
      //look for control combinations
      switch (e.getKeyCode()){
	case 66:
	  drawSurface.setColor(Color.blue);
	  break;
	case KeyEvent.VK_G:
	  drawSurface.setColor(Color.green);
	  break;
	case KeyEvent.VK_R:
	  drawSurface.setColor(Color.red);
	  break;
	case KeyEvent.VK_Y:
	  drawSurface.setColor(Color.yellow);
	  break;
	case KeyEvent.VK_O:
	  drawSurface.setColor(Color.orange);
	  break;
	case KeyEvent.VK_B:
	  drawSurface.setColor(Color.black);
	  break;
	case KeyEvent.VK_M:
	  drawSurface.setColor(Color.magenta);
	  break;
	case KeyEvent.VK_W:
	  drawSurface.setColor(Color.white);
	  break;
      } // end switch
    } // end if

  } // end key event

  public void keyReleased(KeyEvent e){
    //do nothing
  } // end key event

  public void keyTyped(KeyEvent e){
    System.out.println(e);
    if (!e.isControlDown()){
      currentChar = String.valueOf(e.getKeyChar());
    } // end if  
  } // end key event

} // end class def