Help with class

1

I am to change color of an Icon, with 3 different buttons.
So far I have this, but the ColorIcon will not compile.
Compiler says: cannot resolve class ColorIcon.

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

public class ColorIcon implements Icon
{
private int width;
private Color color;
private ChangeColor c;

public ColorIcon(int aWidth, ChangeColor c)
{
this.c = c;
width = aWidth;
color = Color.RED;
}

public int getIconWidth()
{
return width;
}

public int getIconHeight()
{
return width / 2;
}

public void setColor(Color c)
{
color = c;
}

public void paintIcon(Component c, Graphics g, int x, int y)
{

color = c.color;
Graphics2D g2 = (Graphics2D) g;
Ellipse2D.Double ellipse = new Ellipse2D.Double(x,y, width, width);
g2.setColor( color );
g2.fill( ellipse );
}
}

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

public class TestColorIcon{

public java.awt.Color color = java.awt.Color.RED;

public Component createComponents()
{
JButton buttonRed = new JButton("R

2

This is a working example of what you need, with comment about bad things and corrections made.


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


class ColorIcon implements Icon {
	private int width;
	private Color color;
	private ChangeColor c; // Class ChangeColor is not defined
	
	
	public ColorIcon(int aWidth, ChangeColor c) { // Class ChangeColor is not defined
		this.c = c; //So c has no type
		width = aWidth;
		color = Color.RED;
	}
	
	public int getIconWidth() {
		return width;
	}
	
	public int getIconHeight() {
		return width / 2;
	}
	
	public void setColor(Color c) { //This method is not used ?
		color = c;
	}
	
	public void paintIcon(Component c, Graphics g, int x, int y) {
		
		color = this.c.color; //Field color is not defined in Class Component
							  //prefix c by this.c to reference a ChangeColor object
		Graphics2D g2 = (Graphics2D) g;
		Ellipse2D.Double ellipse = new Ellipse2D.Double(x,y, width, width);
		g2.setColor( color );
		g2.fill( ellipse );
	}
}

public class ChangeColor {//Rename TestColorIcon to ChangeColor
	
	public java.awt.Color color = java.awt.Color.RED;
	
	public Component createComponents() {
		JButton buttonRed = new JButton("R?d"); //The e char in Red is not regular
		JButton buttonBlue = new JButton("Bl?"); //The e char in Blue is not regular
		JButton buttonGreen = new JButton("Gr?n"); //The e char in Green is not regular
		
		final ColorIcon icon = new ColorIcon( 20, this); // This constructor does not exists, add ,this
		final JLabel label = new JLabel( icon );
		
		JPanel panel = new JPanel();
		panel.setLayout( new GridLayout(0, 3) );
		panel.add( buttonRed );
		panel.add( buttonBlue );
		panel.add( buttonGreen );
		panel.add( label );
		
		buttonRed.addActionListener(new ActionListener() {
					public void actionPerformed(ActionEvent e) {
						color = Color.RED;
						label.repaint();
					}
				});
		
		buttonBlue.addActionListener(new ActionListener() {
					public void actionPerformed(ActionEvent e) {
						color = Color.BLUE;
						label.repaint();
					}
				});
		
		buttonGreen.addActionListener(new ActionListener() {
					public void actionPerformed(ActionEvent e) {
						color = Color.GREEN;
						label.repaint();
					}
				});
		
		return panel;
	}
	
	
	public static void main(String[] args) {
		try {
			UIManager.setLookAndFeel( UIManager.getCrossPlatformLookAndFeelClassName() );
		}
		catch (Exception e) {
		}
		
		JFrame frame = new JFrame("Change Color");
		ChangeColor changeColor = new ChangeColor(); //Class ChangeColor is not defined
		Component content = changeColor.createComponents();//So changeColor has no type, so does not have a createComponents method
		frame.getContentPane().add( content );
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.pack();
		frame.show();//show is deprecated use setVisible(true) instead
	}
}

Hope this helps

Xvolks