public ControlPanel(DrawingPanel canvas) {
// instance variable draw has been assigned to canvas
this.draw = canvas;
// adds new Button
this.color = new JButton("Add Color");
// assigns a listener with the button
this.color.addActionListener(new ColorButton());
// adds button to the JPanel
this.add(this.color);
// asigns currentColor to a new JPanel
this.currentColor = new JPanel();
// adds currentColor to JPanel
this.add(this.currentColor);
// sets background to default color
currentColor.setBackground(draw.getColor());
// adds a new Button
this.circle = new JButton("Add Circle");
// asigns a listener to the button
this.circle.addActionListener(new CircleButton());
// adds button to the panel
this.add(this.circle);
// adds new button
this.square = new JButton("Add Square");
// asigns this button to a listener
this.square.addActionListener(new SquareButton());
// adds button to the panel
this.add(this.square);
}
