// This is part of the program used in lab exercise 01
// This part does not include the code generated by Netbeans
// Please read the slides and watch the video for explanation
//
// This file is for reference only.  It is your responsibility
// to write a functional program.
// 
// Yung-Hsiang Lu, ECE Purdue
//
class ShapePanel extends javax.swing.JPanel {

    java.awt.Color spColor;
    boolean spCircle;

    public ShapePanel() {
        setSize(300, 300);
        spColor = Color.blue;
        spCircle = true;
    }

    public void setShape(boolean isCircle) {
        spCircle = isCircle;
        repaint();
    }

    public void setColor(Color c) {
        spColor = c;
        repaint();
    }

    @@Override
	public void paintComponent(Graphics gfx) {
        gfx.setColor(spColor);
        if (spCircle) {
            gfx.fillOval(100, 100, 50, 50);
        } else {
            gfx.fillRect(100, 100, 50, 50);
        }
    }
}

public class NewJFrame extends javax.swing.JFrame {

    public NewJFrame() {
        initComponents();
        sp = new ShapePanel();
        add(sp);
    }

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
        sp.setColor(Color.green);
    }

    private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
        sp.setColor(Color.blue);
    }

    private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {
        sp.setShape(true);
    }

    private void jButton4ActionPerformed(java.awt.event.ActionEvent evt) {
        sp.setShape(false);
    }
    
    ShapePanel sp;
}