package ColourChooser;

import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JButton;
import javax.swing.JTextArea;
import java.awt.EventQueue;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.GridLayout;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.JColorChooser;

public class ColorChooserProgram {

    JFrame guiFrame;
    JTextArea tracker;
    JPanel optPanel;

    //Note: Typically the main method will be in a
    //separate class. As this is a simple one class
    //example it's all in the one class.
    public static void main(String[] args) {

         //Use the event dispatch thread for Swing components
         EventQueue.invokeLater(new Runnable()
         {

            @Override
             public void run()
             {

                 new ColorChooserProgram();
             }
         });

    }

    public ColorChooserProgram()
    {
        guiFrame = new JFrame();
        //make sure the program exits when the frame closes
        guiFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        guiFrame.setTitle("Dialog Box Example");
        guiFrame.setSize(500,300);

        //This will center the JFrame in the middle of the screen
        guiFrame.setLocationRelativeTo(null);


        guiFrame.setLayout(new BorderLayout());

        //Using a JTextArea to diplay feedback
        tracker = new JTextArea("File Tracker:");
        tracker.setVisible(true);
        guiFrame.add(tracker, BorderLayout.NORTH);

        optPanel = new JPanel();
        optPanel.setLayout(new GridLayout(1,2));

        guiFrame.add(optPanel,BorderLayout.SOUTH);

        //button for the show dialog method
        JButton showButton = new JButton("Show Color Dialog");
        showButton.setActionCommand("Show Color Dialog");
        showButton.addActionListener(new ActionListener()
        {
            public void actionPerformed(ActionEvent event)
            {
                Color selectedColor = JColorChooser.showDialog(guiFrame, "Pick a Color"
                , Color.GREEN);

                if (selectedColor != null)
                {
                    tracker.append("\nThe selected color is make up of Red: "
                        + selectedColor.getRed() + " Blue: " + selectedColor.getBlue()
                        + " Green: " + selectedColor.getGreen());
                }
            }
        });

        optPanel.add(showButton);

        //button for the create dialog method
        JButton createButton = new JButton("Create Color Dialog");
        createButton.setActionCommand("Create Color Dialog");
        createButton.addActionListener(new ActionListener()
        {
            @Override
            public void actionPerformed(ActionEvent event)
            {
                //this users a JColorchooser instance in combination
                //with a JDialog to create a color chooser dialog. It's modeless
                //and the OK and Cancel buttons can be listened to.
                final JColorChooser colorChooser = new JColorChooser();
                JDialog dialog = JColorChooser.createDialog(guiFrame,
                        "Set Text Area color", false, colorChooser
                        , new ActionListener()
                          {
                              @Override
                             public void actionPerformed(ActionEvent event)
                             {
                               //this actionListenerr is for the OK button
                               tracker.append("\nI can feel my color being changed to "
                                       + colorChooser.getColor());
                               tracker.setBackground(colorChooser.getColor());
                             }
                          }
                        , new ActionListener()
                         {
                             @Override
                             public void actionPerformed(ActionEvent event)
                             {
                               //this actionListener is for the cancel button
                               tracker.append("\nCancel button clicked..");
                             }
                         }
                        );
                dialog.setVisible(true);
            }
        });

        optPanel.add(createButton);

        guiFrame.setVisible(true);

    }
}