//
// COSC 286 Project Template
// Fall 1998
//
// This Java application provides a basic shell for implementing graphics
// algorithms.  If you are working on project 1, then make a copy of this
// file named "Project1.java".  Then do a global search and replace the
// string "Template" with "1".  Most modifications should take place in
// the paint() method of the DrawingArea class.  However, keep in mind that
// you may have to implement additional classes and methods to complete the
// project.
//
// You may also want to change the dimensions of the window size in the
// main procedure of the ProjectTemplate class.
//
// Compile your project using the command:
//
//   javac Project1.java
//
// Then run your project using the command:
//
//   java Project1
//

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

/*=======================================================================*/

public class ProjectTemplate extends Frame {

  public ProjectTemplate(int w, int h) {

    super("COSC 286 Project Template");      // Create the window
    this.setSize(w, h);                      // Specify frame's size
    this.setResizable(false);                // Prevent resizing (supposedly)
    
    // Create a ScrollPane
    ScrollPane pane = new ScrollPane(ScrollPane.SCROLLBARS_NEVER);
    pane.setSize(w, h);                      // Specify the pane's size
    this.add(pane, "Center");                // Add it to the frame

    DrawingArea scribble;
    scribble = new DrawingArea(this);        // Create a drawing area
    pane.add(scribble);                      // Add it to the ScrollPane

    MenuBar menubar = new MenuBar();         // Create a menubar
    this.setMenuBar(menubar);                // Add it to the frame
    Menu file = new Menu("File");            // Create a File menu
    menubar.add(file);                       // Add to menubar

    // Create a quit menu item with a shortcut, and add it to the menu
    MenuItem q;
    file.add(q = new MenuItem("Quit", new MenuShortcut(KeyEvent.VK_Q)));

    // Create and register an action listener object for the menu item.
    q.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) { System.exit(0); }
    });

    // Create and register action listener for the window closing event.
    addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) { System.exit(0); }
    });

    // Set the window size and pop it up.
    this.pack();
    this.show();
  } // ProjectTemplate

  public static void main(String[] args) {
    new ProjectTemplate(300, 300);
  } // main

} // ProjectTemplate class

/*=======================================================================*/

class DrawingArea extends Component {

  protected Frame frame;

  public DrawingArea(Frame frame) {
    this.frame = frame;
  } // DrawingArea

  public void setPixel(Graphics g, int x, int y) {
    g.drawLine(x, y, x, y);
  } // setPixel

  public void paint(Graphics g) {
    Dimension d = getSize();                 // Dimensions of the drawing area
    g.setColor(Color.black);                 // Sets the drawing color to black
    setPixel(g, 20, 30);                     // Draws a single pixel
    g.drawLine(0, 0, d.width-1, d.height-1); // Draws a line across the screen
  } // paint

} // DrawingArea class