// Basic drawing template setup
// This program show how to create a java program that draws simple
// 2D graphical shapes without animation.

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

public class drawingtemplate extends JFrame
{
    protected int width; // dimensions of graphical window
    protected int height; // system-dependent: may include menu bar 
    protected Graphics display; // used to draw images

    // constructor
    public drawingtemplate(int x, int y)  // constructor sets width,height
    { width=x; height=y;
      this.setBounds(0,0,width,height);
      setVisible(true);
      this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      display = this.getGraphics();  
      display.setColor(Color.white); // background color
      display.fillRect(0,0,width,height); // clear background
      try { Thread.sleep(500); } catch (Exception e) {} // synch with sys

      draw(); // user-define drawing function
    }

    protected void draw()
    {
        display.setColor(Color.blue);
        // draw line between x1,y2 and x2,y2, 0,0 is top-left corner
        display.drawLine(0,0,width-1,height-1); //diagonal line
        // draw 80x60 rectangle with top-left corner at point 50,250:
        display.drawRect(50,250,80,60);
        display.setColor(Color.red); // change color
        display.fillRect(100,50,40,50); // draws a solid rectangle
        // draws an oval bounded by a rectangle:
        display.drawOval(200,150,60,60);  // draws a circle
        display.setColor(Color.green);
        display.fillOval(width/2-50,height-200,100,60); // solid oval

        display.setColor(Color.black);
        display.drawString("This is the drawing template program",400,50);
    }//triangle

    public void paint(Graphics g) {} // override autopaint method

    // main must create an instance of triangles class:
    public static void main(String[] args)
    {
	drawingtemplate t = new drawingtemplate(800,600);
    }
}

/*
To write your own drawing program, you can create a file with a
subclass of drawingtemplate and override the draw() method:

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

public class mydraw extends drawingtemplate
{
    public mydraw() // custom constructor
    {
        super(640,480); // calls superclass constructor
    }

    @Override
    public void draw()
    {
        display.setColor(Color.yellow);
        display.fillRect(0,0,width,height); // yellow background
        display.setColor(Color.green);
        display.fillOval(width/2-100,height/2-100,200,200);
    }

    public static void main(String[] av)
    {
        mydraw mywindow = new mydraw();
    }
}//mydraw subclass of drawingtemplate

*/