1    package bookExamples.ch26Graphics.carl.logPolar; 
2     
3     
4    class BackGroundColorButton extends gui.run.RunButton { 
5        java.awt.Color color; 
6        private Controller main; 
7     
8        public BackGroundColorButton(Controller main) { 
9            super("Set Background Color"); 
10           this.main = main; 
11       } 
12    
13       public void run() { 
14           main.getLogic().getPanDisplay().setBackground( 
15                   javax.swing.JColorChooser.showDialog(this, "Choose a color", color)); 
16           main.getLogic().getPanDisplay().repaint(); 
17       } 
18   } 
19