A custom java.awt.LayoutManager implementation

AltAlta.java

/**
 * AltAlta.java
 * for the example code, click the link below:
 * http://pastebin.com/AUNZqL58
 * Serdar KUZUCU - http://blog.asosyalbebe.com
 * Java'da Kendi LayoutManager'ımızı Yaratalım
 * http://serdarkuzucu.com/java-swing-custom-layoutmanager
 */
package sedran.layoutManagers;

import java.awt.Component;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.Insets;
import java.awt.LayoutManager;

public class AltAlta implements LayoutManager {
	// Space between Components
	private int gap = 5;
	
	// Default border width
	private int myInsets = 5;

	public AltAlta() {}

	public AltAlta(int gap) {
		this.gap = gap;
	}

	public void addLayoutComponent(String arg0, Component arg1) {}
	public void removeLayoutComponent(Component arg0) {}

	public void layoutContainer(Container parent) {
		int nComp = parent.getComponentCount();
		Dimension d = null;
		int maxWidth = 0;
		for(int i=0; i<nComp; i++) {
			d = parent.getComponent(i).getPreferredSize();
			if( d.width > maxWidth ) {
				maxWidth = d.width;
			}
		}
	
		Insets borders = parent.getInsets();
		int top = borders.top + myInsets;
		for(int i=0; i<nComp; i++) {
			Component c = parent.getComponent(i);
			d = c.getPreferredSize();
			c.setBounds(borders.left + myInsets, top, maxWidth, d.height);
			top += d.height + gap;
		}
	}

	public Dimension minimumLayoutSize(Container parent) {
		Insets borders = parent.getInsets();
		int nComp = parent.getComponentCount();
		Dimension d = null;
		int maxWidth = 0;
		int sumHeight = 0;
		for(int i=0; i<nComp; i++) {
			d = parent.getComponent(i).getPreferredSize();
			if( d.width > maxWidth ) {
				maxWidth = d.width;
			}
			sumHeight += d.height;
		}
		int height = sumHeight + borders.top + myInsets*2 + borders.bottom + gap*(nComp-1);
		int width = maxWidth + borders.left + borders.right + myInsets*2;
		return new Dimension(width, height);
	}

	public Dimension preferredLayoutSize(Container parent) {
		return minimumLayoutSize(parent);
	}
}