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How to switch between tabs in swings?

Greenhorn

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posted 13 years ago

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Hi,

I have an swing application with a JTabbedPane containing some JPannels (tabs).I have a Button in tab1(say). I coded the Button action in such a way that it generates a new tab say tab2 which contains some components inside it but the thing is when a user clicks on tab2 user is able to see the components in Tab2

My Question is instead of user activity of clicking on tab2 is it possible to load and display tab2 components automatically and show it to user. What i mean to say is Bring it to front

any help is greatly aprized

Thanks in advance

Maneesh Godbole

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posted 13 years ago

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Check out JTabbedPanel#setSelectedIndex()

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Rob Spoor

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posted 13 years ago

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Click on the link that is automatically created for JTabbedPane. Scroll down to the method list. Read through them and see if one does what you want. I'll tell you two things:
1) there is at lease one such a method
2) it starts with set

Edit: Maneesh beat me to it. However, you can use the above steps to find a lot more useful methods, for all classes.

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ragz wifer

Greenhorn

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posted 13 years ago

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hi

i used the JTabbedPane.setSelectedIndex(-1); then it shows all the tabs where none of it got selected.

how to set index to a jpannel?how to bring tab2 to front???

here is my code what it does is its generating tab2 but my question is instead of user to click on tab2 tab2 should be loaded automatically when new client button is clicked

import javax.imageio.ImageIO;
import javax.swing.*; 
import javax.swing.UIManager.*;
import java.io.*; 
import java.util.Properties;
import java.util.regex.Pattern;
import java.awt.AWTException;
import java.awt.BorderLayout;
import java.awt.CardLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Frame;
import java.awt.Robot;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.image.BufferedImage;

public class TabbedPane extends JFrame {
	public JTabbedPane jtp = new JTabbedPane();
	public JPanel jp1 = new JPanel();
	public JPanel jp2 = new JPanel();
	
	
	
	public JButton jButton1 = new JButton();
	public JLabel label1 = new JLabel();
	
	public TabbedPane() {
		setTitle("BUILD");
		getContentPane().add(jtp);
		/**
		 *tab 1 content
		 */
		jButton1.setText("NEW CLIENT");
		jButton1.setFont(new Font("ARIAL", Font.BOLD, 10));
		jButton1.setBackground(Color.gray);
		jButton1.setForeground(Color.white);
		jButton1.addActionListener(new ButtonListener1());
		
		jp1.add(jButton1);
		jtp.addTab("WELCOME", jp1);
		jtp.setBackground(Color.orange);
		jtp.setForeground(Color.RED);
		// setting layout & other features for tab 1
		jp1.setLayout(null);
		jp1.setBorder(BorderFactory.createEtchedBorder());
		Color color = new Color(219,219,219);
		jp1.setBackground(color);
		jp1.setForeground(new Color(130, 230, 177));
		addComponent(jp1, jButton1, 70, 250, 120, 20);
	}
	class ButtonListener1 implements ActionListener {
		public void actionPerformed(ActionEvent ae) {
					
				
			label1.setFocusable(true);
			label1.setText("<html><span  style='color:#990000;'>Welcome to Build And Deployment Console</span></html>");
			label1.setFont(new Font("ARIAL", Font.BOLD, 15));
			
			jp2.add(label1);
			getContentPane().add(jtp);
			jtp.addTab("TAB2", jp2);
			jp2.setLayout(null);
			jp2.setBorder(BorderFactory.createEtchedBorder());
			Color color = new Color(219,219,219);
			jp2.setFocusable(true);
			jp2.setBackground(color);
			jp2.setForeground(new Color(130, 230, 177));	
			addComponent(jp2,label1, 460, 50, 800, 70);//adding heading
		
			
			
		}
	}
	private void addComponent(Container container, Component c, int x, int y,
			int width, int height) {
		c.setBounds(x, y, width, height);
		container.add(c);
	}
	public static void main(String[] args) {
		try {
			TabbedPane tp = new TabbedPane();
			tp.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
			tp.setVisible(true);
			tp.setState(Frame.NORMAL);
			Toolkit toolkit = Toolkit.getDefaultToolkit();
			Dimension dimension = toolkit.getScreenSize();
			tp.setSize(dimension);
		}
		catch (Exception ex) {
			System.out.println("Failed loading L&F: ");
			System.out.println(ex);
		}
	}

}

please and kindly help me
thanks in advance

Maneesh Godbole

Bartender

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posted 13 years ago

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ragz wifer wrote:

i used the JTabbedPane.setSelectedIndex(-1);then it shows all the tabs where none of it got selected.

No surprises there.
From the API docs

The index must be a valid tab index or -1, which indicates that no tab should be selected

In the code you have posted, I do not see where you have used it

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ragz wifer

Greenhorn

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posted 13 years ago

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Hi Maneesh

firstly i doesn't know how to set an index to a JPannel i.e.., a tab

once it is done that index value should be placed in the below line right?

JTabbedpane.setSelectedIndex();

Maneesh Godbole

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posted 13 years ago

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In pseudo code

1) Create frame
2) Create tabbed pane
3) Add required tabs to tabbed pane
4) Add tabbed pane to frame
5) Select the required tab*

*Can be done on button click too

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