swingutil.java

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package org.theblueplanet.util;

import java.awt.Component;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.GridBagConstraints;
import java.awt.Toolkit;
import java.awt.Window;

import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JPanel;

/**
 *  Utility methods for Swing components.
 *
 * @author     Charles M間nin
 * @since    September 28, 2001
 * @version    1.0
 */
public class SwingUtil {

    /**
     *  Centers a window on the screen
     *
     * @param  window  The JWindow object to center
     */
    public static void center(Window window) {
        Dimension screenSize  = Toolkit.getDefaultToolkit().getScreenSize();
        Dimension windowSize  = window.getSize();
        window.setLocation((screenSize.width - windowSize.width) / 2, (screenSize.height - windowSize.height) / 2);
    }

    /**
     *  Helper method to add a Component to a Container with a GridBagLayout
     *
     * @param  container  The Container
     * @param  component  The Component to ad to the Container
     * @param  gbc        The GridBagConstraints Object
     * @param  x          The x position of the Component
     * @param  y          The y position of the Component
     * @param  width      The width of the Component
     * @param  height     The height of the Component
     */
    public static void addUsingGBL(Container container, Component component,
            GridBagConstraints gbc, int x, int y,
            int width, int height) {
        gbc.gridx = x;
        gbc.gridy = y;
        gbc.gridwidth = width;
        gbc.gridheight = height;
        container.add(component, gbc);
    }

}