Adding a new page to my contaier.

[david weatherholt]

I am trying to add a page I created, called "CenterPanel.java" to the CENTER position of my containter page. (IntroPanel.Java)



Here is my MAIN.

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

public class PizzaLab extends JPanel
{


public static void main(String [] args)
{
	JFrame frame = new JFrame ("Pizza Lab");
     frame.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE);


	frame.getContentPane().add(new IntroPanel());

      frame.pack();
      frame.setVisible(true);


}

Here is my containter.. this is where I would like to add CenterPanel.Java into the CENTER position of my borderlayout

//********************************************************************
//  IntroPanel.java
//
//
//********************************************************************

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

public class IntroPanel extends JPanel
{
   //-----------------------------------------------------------------
   //  Sets up this panel with two labels.
   //-----------------------------------------------------------------

////private static JPanel centerpanel = new JPanel();    YES?  NO?  Help...

   public IntroPanel()
   {
	  setLayout (new BorderLayout());
      setBackground (Color.white);

      setPreferredSize (new Dimension(1200,600));

      ImageIcon icon = new ImageIcon ("images.jpg");

    

	  JLabel label1 = new JLabel ("Welcome to the Pizza Ordering Website", icon, SwingConstants.CENTER);





		




      add (label1, BorderLayout.NORTH);
      add (l2, BorderLayout.WEST);
      add (centerpanel, BorderLayout.CENTER);     /////////////////   HELP ME HERE????
   }
}

THIS is the page I am trying to add into my "IntroPanel.java" BorderLayout.CENTER position.

import java.awt.*;



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

public  class CenterPanel extends JFrame
{



	public CenterPanel()
	{
		JFrame jframe = new JFrame ("Select a choice");




		setTitle("Tabbed Pane");


	JTabbedPane tp = new JTabbedPane();
	//getContentPane().add(tp);
	tp.addTab ("Pizza", new PizzaPanel());

	       JPanel jp1 = new JPanel();//This will create the first tab
	       JLabel label1 = new JLabel();
		   label1.setText("Choose your pizza");
		   jp1.add(label1);


		   tp.addTab("Tab1", jp1);

       jframe.getContentPane().add(tp);
       jframe.pack();
       jframe.setVisible(true);


}

}

Bonus page, PizzaPanel.Java.. I am trying to add this to a tab on my CenterPanel.java page.

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

public class PizzaPanel extends JPanel
{
       private JRadioButton small, medium, large;
	   private int smallp, mediump, largep;
	   private JLabel quote, toppings;



	   private JCheckBox pepperoni, sausage, bellpepper, mushroom, pineapple;

	  private String smalls, mediums, larges;



	public PizzaPanel()
	{


		setLayout(new BoxLayout(this, BoxLayout.X_AXIS));


// Begin subPanel1 (pizza size )
		smallp= 10;
	    mediump=15;
	    largep=20;

        String intro = "Select size";


	    smalls = "$10";
	    mediums="$15";
	    larges="$20";


	    quote = new JLabel(intro);
	    quote.setFont (new Font("Helvetica", Font.BOLD,12));

	 /* JLabel  sm = new JLabel (smalls);
	   JLabel md = new JLabel (mediums);
	   JLabel lg = new JLabel (larges);*/



	    small = new JRadioButton ("Small", true);
	    medium = new JRadioButton ("Medium");
	    large = new JRadioButton ("Large");

	    ButtonGroup group = new ButtonGroup();
	    group.add(small);
	    group.add(medium);
	    group.add(large);

	    PriceListener listener = new PriceListener();
	    small.addActionListener (listener);
	    medium.addActionListener(listener);
	    large.addActionListener(listener);

//           End subPanel1 (pizza size ) buttons and listener











		JPanel subPanel1 = new JPanel();/////  Pizza size , radio button
		subPanel1.setPreferredSize (new Dimension(150,100));
		subPanel1.add(small);
		subPanel1.add(medium);
		subPanel1.add(large);






// being subPanel2 (toppings)

		toppings = new JLabel ("Please choose your toppings");

		pepperoni = new JCheckBox ("Pepperoni");
		sausage = new JCheckBox("sausage");
		bellpepper = new JCheckBox ("Bell Pepper");
		mushroom = new JCheckBox ("Mushroom");
		pineapple = new JCheckBox ("Pineapple");

		///////////////////////////////////////////////////////

		JPanel subPanel2 = new JPanel();///// Pizza toppings, add check boxes
		subPanel2.setPreferredSize (new Dimension(150,100));
		subPanel2.add(toppings);
		subPanel2.add(pepperoni);
		subPanel2.add(sausage);
		subPanel2.add(bellpepper);
		subPanel2.add(mushroom);
		subPanel2.add(pineapple);













		JPanel primary = new JPanel();//// Combine subPanel1 and subPanel2 under primary panel
		primary.add(subPanel1);
		primary.add(subPanel2);




}




 class PriceListener implements ActionListener

{
public void actionPerformed (ActionEvent event)

{

Object source = event.getSource();

if (source == small)
	quote.setText(smalls);
	else
	if (source==medium)
	   quote.setText(mediums);
	   else
	   quote.setText(larges);
	   }


	   }

[Michael Dunn]

add (centerpanel, BorderLayout.CENTER); ///////////////// HELP ME HERE???

if centerpanel is an instance of the class CenterPanel, you can't.

CenterPanel is a JFrame, so it cannot be added to a container.
You'll have to change anything to do with frames to JPanels

[david weatherholt]

Is there any way I can make my CenterPanel have a set of tabbed panels inside of it? Even though I want to add it to my IntroPanel.java's BorderLayout.CENTER?

[Michael Dunn]

Make CenterPanel a JPanel and add a JTabbedPane to it.

[david weatherholt]

Thank you very much for the reply's!

I am receiving a run time error message

Exception in thread "main" java.lang.IllegalArgumentException: adding a window t
o a container
at java.awt.Container.checkNotAWindow(Container.java:483)
at java.awt.Container.addImpl(Container.java:1084)
at java.awt.Container.add(Container.java:966)
at IntroPanel.<init>(IntroPanel.java:44)
at PizzaLab.main(PizzaLab.java:25)
Press any key to continue . . .

I believe my CenterPanel.java code is messed up... I am trying to add tabs to my other pages, PizzaPanel and DrinksPanel.

Here is my CenteraPanel.java code..


(Code commented off , not using it, just there playing with it... trying to figure it out)

import java.awt.*;



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

public  class CenterPanel extends JFrame
{


	public CenterPanel()
	{


		//JFrame jframe = new JFrame ("Select a choice");



		setTitle("Tabbed Pane");

	 JPanel centerpanel = new JPanel();

	JTabbedPane tp = new JTabbedPane();
	getContentPane().add(tp);
	tp.add ("Pizza", new PizzaPanel());
	tp.add ("Drinks", new DrinkPanel());

	centerpanel.add(tp);



	      /* JPanel jp1 = new JPanel();//This will create the first tab
	       JLabel label1 = new JLabel();
		   label1.setText("Choose your pizza");
		   jp1.add(label1);*/


		   //tp.addTab("Tab1", jp1);

     /* jframe.getContentPane().add(tp);
      jframe.pack();
      jframe.setVisible(true);*/


}



}

[Michael Dunn]

in my first reply I had this
"CenterPanel is a JFrame"

nothing has changed
"public class CenterPanel extends JFrame "