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Hi all,
 
I have a issue about layout in java application,
my frame have a menu on top and a jPanel with layout is border layout.
this panel is main panel and it is added more jPanel(component panel also has layout is borderlayout) at Center.
and I created 1 jLabel with icon is a picture.
 
My issue is how to display this picture(the size can change) at center(horizal and vertical are center) of screen(my frame).
 

please help me.
 
thank in advance
Posted 1-Feb-13 16:06pm
ngthtra1.4K
Edited 3-Feb-13 21:26pm
v2
Comments
Krunal Rohit at 2-Feb-13 1:54am
   
If its Web App, you can certainly use CSS for it..

1 solution

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Solution 1

This example achieves what you're describing;
 
package com.bornander.imagetest;
 
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Container;
import java.io.File;
import java.io.IOException;
 
import javax.imageio.ImageIO;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenuBar;
import javax.swing.JPanel;
 
public class MainWindow extends JFrame {
	
	private JMenuBar menuBar = new JMenuBar();
	private JPanel mainPanel = new JPanel();
	
	public MainWindow(String filename) throws IOException {
		Container contentPane = getContentPane();
		contentPane.setLayout(new BorderLayout());
		contentPane.add(menuBar, BorderLayout.NORTH);
		contentPane.add(mainPanel, BorderLayout.CENTER);
		
		menuBar.setBackground(Color.RED);
		menuBar.add(new JButton("Foo"));
		mainPanel.setBackground(Color.GREEN);
		mainPanel.setLayout(new BorderLayout());
		
		JLabel picLabel = new JLabel(new ImageIcon(ImageIO.read(new File(filename))));
		mainPanel.add(picLabel, BorderLayout.CENTER);
		
		setSize(320, 240);
		setVisible(true);
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	}
}
 
Hope this helps,
Fredrik
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