Change the shape of JFrame

[kiki2009]

How to change the shape of JFrame in different shape , and also make it interface look alike Mac Windows Frame.

[Singing Boyo]

You can't change the shape of components (at least not most of them, haven't looked at all the API docs) in either AWT or Swing. As for the way it looks, probably setting the look and feel, but I'm not sure what L&F you would want.

[tim]

Hi kiki.

The code below will update your java frame ("this") with the systems default look and feel. So, if you run it on Mac OS, and the look and feel is installed, it should look like a Mac OS application, i.e. in the correct "shape". You can place it in your frames constructor.

try {                
    UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
    SwingUtilities.updateComponentTreeUI(this);
} catch (Exception e) {
    // some problem you can handle if needed
}

Also, you can take a look at the first Google result on java mac os look and feel

Good luck kiki.

[raghu_lzybns]

I can understand that u are looking for for LookAndFeel.

Here is a sample code to understand....try it.

This looks like hefty code but simple to understand.

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

public class GettingAndSettingLAF {
	JFrame frame;
	JTextArea txtArea;
	public static void main(String args[]) {
		GettingAndSettingLAF mc = new GettingAndSettingLAF();
	}

	public GettingAndSettingLAF(){
		frame = new JFrame("Change Look");
		UIManager.LookAndFeelInfo lookAndFeels[] = UIManager.getInstalledLookAndFeels();
		JPanel panel = new JPanel();
		JPanel panel1 = new JPanel();
		txtArea = new JTextArea(5, 15);
		JScrollPane sr = new JScrollPane(txtArea);
		panel1.add(sr);
		for(int i = 0; i < lookAndFeels.length; i++){
			JButton button = new JButton(lookAndFeels[i].getName());
			button.addActionListener(new MyAction());
			panel.add(button);
		}
		frame.add(panel1,BorderLayout.NORTH);
		frame.add(panel, BorderLayout.CENTER);
		frame.setSize(300, 200);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setResizable(false);
		frame.setVisible(true);
	}

	public class MyAction implements ActionListener{
		public void actionPerformed(ActionEvent ae){
			Object EventSource = ae.getSource();
			String lookAndFeelClassName = null;
			UIManager.LookAndFeelInfo looks[] = UIManager.getInstalledLookAndFeels();
			for(int i = 0; i < looks.length; i++){
				if(ae.getActionCommand().equals(looks[i].getName())){
					lookAndFeelClassName = looks[i].getClassName();
					break;
				}
			}
			try{
				UIManager.setLookAndFeel(lookAndFeelClassName);
				txtArea.setText(lookAndFeelClassName);
				SwingUtilities.updateComponentTreeUI(frame);
			}
			catch(Exception e){
				JOptionPane.showMessageDialog(frame, "Can't change look and feel:" + lookAndFeelClassName, "Invalid PLAF", JOptionPane.ERROR_MESSAGE);
			}
		}
	}
}

[stevemilw]

i concur and do so solemly agree