Foro de elhacker.net

import java.awt.*;
import javax.swing.*;
import javax.swing.text.SimpleAttributeSet;
import javax.swing.text.StyleConstants;

public class LimitarAncho {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		
		CrearVentana001 crearVentana001 = new CrearVentana001();
		
	}

}

class CrearVentana001 {
	
	JFrame ventana001 = new JFrame();
	
	JPanel marcoFlow001 = new JPanel();
	JPanel marcoBorder001 = new JPanel();
	JPanel marcoGrid001 = new JPanel();
	JPanel marcoBox001 = new JPanel();
	JPanel marcoBox002 = new JPanel();
	JPanel marcoBox003 = new JPanel();
	JPanel marco001 = new JPanel();
	
	JButton boton001 = new JButton("Boton001");
	JButton boton002 = new JButton("Boton002");
	JButton boton003 = new JButton("Boton003");	
	
	JTextArea areaTexto001 = new JTextArea(150,150);
	JTextArea areaTexto002 = new JTextArea(50,50);
	
	JScrollPane jscrollPane001 = new JScrollPane();
	
		public CrearVentana001(){
			
			marcoBorder001.setLayout(new BorderLayout()); //Panel Principal
			
			marcoGrid001.setLayout(new GridLayout(2,1,1,1));//aca ban los botones 			
			//////
			marcoGrid001.add(boton001);
			marcoGrid001.add(boton002);
			marcoFlow001.add(marcoGrid001); // con el FlowLayout "protejo" las proporciones del Grid
			
			marcoBorder001.add(marcoFlow001,BorderLayout.WEST);

			// dentro del este box va lo que esta en el BorderLayout.CENTER del principal
			marcoBox002.setLayout(new BoxLayout(marcoBox002,BoxLayout.X_AXIS));
			
			marco001.add(boton003); //
			marco001.setBorder(BorderFactory.createLineBorder(Color.black));
			areaTexto002.setBorder(BorderFactory.createLineBorder(Color.black));
			

			// ESTA AREA DE TEXTO ES EL PROBLEMA.
			
			marcoBox003.setLayout(new BoxLayout(marcoBox003, BoxLayout.X_AXIS));
			
			jscrollPane001.setViewportView(areaTexto001);
						
			marcoBox003.add(jscrollPane001,BorderLayout.CENTER);
			
			// AGREGO todo al BoxLayout y esto va al BorderLayout.CENTER del principal
			
			marcoBox002.add(marco001);			
			marcoBox002.add(marcoBox003);
			
			marcoBorder001.add(marcoBox002,BorderLayout.CENTER);
			
			ventana001.add(marcoBorder001);
			
			ventana001.setBounds(300,300,600,600);
			ventana001.setVisible(true);
			
			
		}
	
}