GridBagLayout with constraints
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class GridBagWithContaints {
public static void main(String[] args) {
JFrame f = new JFrame(
"Demonstrates the use of gridx, gridy,ipadx, ipady and insets constraints");
JPanel p = new JPanel();
p.setLayout(new GridBagLayout());
// creates a constraints object
GridBagConstraints c = new GridBagConstraints();
c.insets = new Insets(2, 2, 2, 2); // insets for all components
c.gridx = 0; // column 0
c.gridy = 0; // row 0
c.ipadx = 5; // increases components width by 10 pixels
c.ipady = 5; // increases components height by 10 pixels
p.add(new JButton("Java"), c); // constraints passed in
c.gridx = 1; // column 1
// c.gridy = 0; // comment out this for reusing the obj
c.ipadx = 0; // resets the pad to 0
c.ipady = 0;
p.add(new JButton("Source"), c);
c.gridx = 0; // column 0
c.gridy = 1; // row 1
p.add(new JButton("and"), c);
c.gridx = 1; // column 1
p.add(new JButton("Support."), c);
WindowListener wndCloser = new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
};
f.addWindowListener(wndCloser);
f.getContentPane().add(p);
f.setSize(600, 200);
f.show();
}
}
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