JSeparator expectation with GridbagLayout

[Sharad Kharya]

Hello,

I am working on Swing Application and trying to use JSeparator to divide the panel Horizontally.
But, unfortunately my Separator is showing as a full line. Instead it is just showing in particular area only.

Can anyone please help me, on how to correct this.

Here is my Sample code

import javax.swing.*;

import java.awt.*;

public class GridBagSeparator{
	  public static void main(String[] args) {
	  JFrame frame = new JFrame("Laying Out Components in a Grid");
	  frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
	 
	  JPanel panel = new JPanel(new GridBagLayout());
	  panel.setBorder(BorderFactory.createLineBorder(Color.BLACK, 5));  
	  
	  GridBagConstraints layoutContraints = new GridBagConstraints();
	  String artboardText = "artboard";
	  
	  layoutContraints.gridy = 0;
	  layoutContraints.gridx = 0;
	  
	  layoutContraints.weightx = 1.0;

	  panel.add(new Label("1=="+artboardText), layoutContraints);
	  
	  
	  layoutContraints.gridy = 0;
	  layoutContraints.gridx = 1;
	  panel.add(new Label("2=="+artboardText), layoutContraints);
	  
	  
	  JSeparator sep = new JSeparator(SwingConstants.HORIZONTAL);
	  layoutContraints.gridy = 1;
	  layoutContraints.gridx = 2;
	  layoutContraints.fill = GridBagConstraints.HORIZONTAL;  
	  panel.add(sep, layoutContraints);
	  
	  layoutContraints.gridy = 2;
	  layoutContraints.gridx = 2;
	  panel.add(new Label("3=="+artboardText), layoutContraints);
	  
	  frame.add(panel);
	  frame.setSize(400,400);
	  frame.setVisible(true);
	  }
}

[Darryl Burke]

But, unfortunately my Separator is showing as a full line.

Did you mean that it is not showing as a full line? You need gridx = 0 and gridwidth = the number of columns for that.

[m Korbel]

one of the ways

import javax.swing.*;
import java.awt.*;
//http://www.coderanch.com/t/593653/GUI/java/JSeparator-expectation-GridbagLayout
public class GridBagSeparator {

    public static void main(String[] args) {
        JFrame frame = new JFrame("Laying Out Components in a Grid");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        JPanel panel = new JPanel(new GridBagLayout());
        panel.setBorder(BorderFactory.createLineBorder(Color.BLACK, 5));

        GridBagConstraints layoutContraints = new GridBagConstraints();
        String artboardText = "artboard";

        layoutContraints.gridy = 0;
        layoutContraints.gridx = 0;

        layoutContraints.weightx = 1.0;

        panel.add(new Label("1==" + artboardText), layoutContraints);

        layoutContraints.gridy = 0;
        layoutContraints.gridx = 1;
        panel.add(new Label("2==" + artboardText), layoutContraints);

        layoutContraints.gridy = 0;
        layoutContraints.gridx = 2;
        panel.add(new Label("3==" + artboardText), layoutContraints);

        JSeparator sep = new JSeparator(SwingConstants.HORIZONTAL);
        layoutContraints.gridy = 1;
        layoutContraints.gridx = 0;
        layoutContraints.gridwidth = 3;
        layoutContraints.fill = GridBagConstraints.HORIZONTAL;
        panel.add(sep, layoutContraints);

        layoutContraints.gridy = 2;
        layoutContraints.gridx = 2;
        panel.add(new Label("3==" + artboardText), layoutContraints);

        frame.add(panel);
        frame.setSize(400, 400);
        frame.setVisible(true);
    }
}