/*
 *  ==============================================================
 *  DemoGridLayout.java : Create a rectangular grid of buttons and
 *  position them on a content pane using the grid layout manager.
 * 
 *  Adapted from : Pantham S., Pure JFC Swing, 1999.
 *  Modified by : Mark Austin                          March, 2001
 *  ==============================================================
 */

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

public class DemoGridLayout extends JApplet {

    Container container = null;

    // 1. Set grid layout parameters ....

    static final int iNoRows    = 4;
    static final int iNoColumns = 3;
    static final int iHorizontalSpacing = 5;
    static final int iVerticalSpacing   = 5;

    public void init() {

       // 2. Get a handle on the applet's content pane.

       container = this.getContentPane();

       // 3. Assign the grid layout to the content pane.
       //    parameters : rows = 3, cols = 2
       //               : horizontal gap = 5, vertical gap = 5

       GridLayout grid = new GridLayout( iNoRows,
                                         iNoColumns,
                                         iHorizontalSpacing,
                                         iVerticalSpacing
                                       );

       container.setLayout( grid );

       // 4. Create and add components to the content pane.

       for (int i=0; i < iNoRows*iNoColumns;  i = i + 1 )
          container.add( new JButton( "Button " + (i+1) ) );
    }
}