fixed element in gridbaglayout

[Leandro Coutinho]

Hi!

I want the components of the GUI on the top-left and I don't want them to move to right when the window is resized.

import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
 
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTextField;
 
 
public class GridBag3 {
	private static JFrame frame;
	private static JLabel lblName;
	private static JTextField txtName;
	private static JButton btnSave;
	
	public static void addComponentsToPane() {
		frame.setLayout(new GridBagLayout());
				
		GridBagConstraints c = new GridBagConstraints();
		c.fill = GridBagConstraints.NONE;
		c.insets = new Insets(5, 5, 5, 5);
		c.weightx = 0;
				
		lblName = new JLabel("Name:");
		c.anchor= GridBagConstraints.NORTHEAST;
		c.gridx = 0;
		c.gridy = 0;
		frame.add(lblName, c);
		
		txtName = new JTextField(20);
		c.anchor= GridBagConstraints.NORTHWEST;
		c.gridx = 1;
		frame.add(txtName, c);
		
		btnSave = new JButton("Save");
		c.anchor= GridBagConstraints.NORTHWEST;
		c.gridx = 1;
		c.gridy = 1;
		c.weighty = 1;
		frame.add(btnSave, c);
	}
	
	public static void createAndShowGUI() {
		// Create and set up the window.
		frame = new JFrame("My App");
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		
		// Set up the content pane.
		addComponentsToPane();
		
		// Display the window.
		frame.pack();
		frame.setVisible(true);
	}
	
	public static void main(String[] args) {
		javax.swing.SwingUtilities.invokeLater(new Runnable() {
			public void run() {
				createAndShowGUI();
			}
		});
	}
}

Thanks.

[Michael Dunn]

not a gridbaglayout solution, but a nested flowLayout panel might be good enough

   
import java.awt.*;
import javax.swing.*;
class GridBag3 {
  private static JFrame frame;
  private static JLabel lblName;
  private static JTextField txtName;
  private static JButton btnSave;

  public static void addComponentsToPane() {
    //frame.setLayout(new GridBagLayout());
JPanel gbPanel = new JPanel(new GridBagLayout());
    GridBagConstraints c = new GridBagConstraints();
    c.fill = GridBagConstraints.NONE;
    c.insets = new Insets(5, 5, 5, 5);
    c.weightx = 0;

    lblName = new JLabel("Name:");
    c.anchor= GridBagConstraints.NORTHEAST;
    c.gridx = 0;
    c.gridy = 0;
    //frame.add(lblName, c);
gbPanel.add(lblName, c);
    txtName = new JTextField(20);
    c.anchor= GridBagConstraints.NORTHWEST;
    c.gridx = 1;
    //frame.add(txtName, c);
gbPanel.add(txtName, c);

    btnSave = new JButton("Save");
    c.anchor= GridBagConstraints.NORTHWEST;
    c.gridx = 1;
    c.gridy = 1;
    c.weighty = 1;

    //frame.add(btnSave, c);
gbPanel.add(btnSave, c);
JPanel p = new JPanel(new FlowLayout(FlowLayout.LEFT));
p.add(gbPanel);
frame.add(p);
  }
  public static void createAndShowGUI() {
    frame = new JFrame("My App");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    addComponentsToPane();
    frame.pack();
    frame.setVisible(true);
  }
  public static void main(String[] args) {
    javax.swing.SwingUtilities.invokeLater(new Runnable() {
      public void run() {
        createAndShowGUI();
      }
    });
  }
}

[pete stein]

Leandro, please read this link on cross-posting: BeForthrightWhenCrossPostingToOtherSites

[Michael Dunn]

> Leandro, please read this link on cross-posting: BeForthrightWhenCrossPostingToOtherSites

Thanks, another added to my personal 'ignore-in-future' list

[Leandro Coutinho]

Thanks Michael Dunn
Don't you like to use direct in the frame?
eg:
why did you do this:
JPanel p = new JPanel(new FlowLayout(FlowLayout.LEFT));
p.add(gbPanel);
frame.add(p);

instead of this:

frame.setLayout(new FlowLayout(FlowLayout.LEFT));
frame.add(gbPanel);

I always have this doubt, if it is better put the components in a panel and then in the frame, or if I can put direct in the frame.
you that have much knowlodge, what do you recomend? do you have some tip?

I could manage to resolve this problem without the workaround.

		GridBagConstraints c = new GridBagConstraints();
		c.fill = GridBagConstraints.NONE;
		c.insets = new Insets(5, 5, 5, 5);
					
		lblName = new JLabel("Name:");
		c.anchor= GridBagConstraints.NORTHEAST;
		c.gridx = 0;
		c.gridy = 0;
		frame.add(lblName, c);
		
		txtName = new JTextField(20);
		c.anchor= GridBagConstraints.NORTHWEST;
		c.gridx = 1;
		c.weightx = 1;
		frame.add(txtName, c);

[Leandro Coutinho]

pete stein wrote:Leandro, please read this link on cross-posting: BeForthrightWhenCrossPostingToOtherSites

ok, I didn't know this politic

[Rob Spoor]

Leandro Coutinho wrote:

pete stein wrote:Leandro, please read this link on cross-posting: BeForthrightWhenCrossPostingToOtherSites

ok, I didn't know this politic

Then perhaps http://faq.javaranch.com/java/HowToAskQuestionsOnJavaRanch is a good read for you.