Uso de GridBagLayout

**Admin (Viruz)** Jue Oct 11, 2012 7:48 pm

El GridBagLayout es uno de los layout de java más potentes. El gestor de diseño GridBagLayout es muy complicado, ya que está gobernado por un conjunto de propiedades que están relacionados entre sí. Los componentes se disponen en una matriz tal como vimos como se ve con el gestor GridLayout.

Hola amigos de Viruz Blog empezando el mes como es costumbre les traigo un programa en Java, en esta ocasión es uno de mis primeros programas ya que estaba aprendiendo como utilizar el administrador de diseño GridBagLayout sacado de los ejercicios que se encuentran en el libro de Deitel "Aprendiendo a Programar en Java", y era crear esta interfaz que les traigo a continuación.

Imagen

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Lo que se necesita conocer

API de GridBagLayout
How to Use GridBagLayout

Código

Clase Main.

01 import javax.swing.JFrame;
02 
03 public class Main{
04     public static void main (String [] args){
05         Impresora marco = new Impresora ();
06         marco.setSize(420,190);
07         marco.setVisible(true);
08         marco.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
09     }
10 }

Clase Impresora

01 import java.awt.GridBagConstraints;
02 import java.awt.GridBagLayout;
03 import javax.swing.*;
04 
05 public class Impresora extends JFrame {
06     public Impresora(){
07         super("Viruz Blog: Impresora con GridBagLayout");
08         this.getContentPane().setLayout (new GridBagLayout());
09         agregarEtiqueta(); 
10         agregarTextArea();
11         agregarCheckBox();
12         agregarTextArea2();
13         agregarRadioButton();
14         agregarTextArea3();
15         agregarBotones();
16         agregarEtiqueta2();
17         agregarComboBox();
18         agregarCheckBox2();
19     }
20       
21     private void agregarEtiqueta(){
22         GridBagConstraints constraints = new GridBagConstraints();
23         JLabel eti = new JLabel ("Impresora: Mi Impresora");
24         constraints.gridx = 0;
25         constraints.gridy = 0;
26         constraints.gridwidth = 3;
27         constraints.gridheight = 1;
28        
29         constraints.weightx = -1.0;
30         this.getContentPane().add (eti, constraints);       
31     }
32       
33     private void agregarTextArea(){
34         JTextArea areaTexto = new JTextArea ();
35         GridBagConstraints constraints = new GridBagConstraints();
36         constraints.gridx = 0; // El área de texto empieza en la columna cero.
37         constraints.gridy = 1; // El área de texto empieza en la fila cero
38         constraints.gridwidth = 1; // El área de texto ocupa una columna.
39         constraints.gridheight = 1; // El área de texto ocupa 3 filas.
40         this.getContentPane().add (areaTexto, constraints);       
41     }
42 
43     private void agregarCheckBox(){
44         JCheckBox ch1=new JCheckBox("Imagen");
45         GridBagConstraints constraints = new GridBagConstraints();
46         constraints.gridx = 1; 
47         constraints.gridy = 1; 
48         constraints.gridwidth = 1; 
49         constraints.gridheight = 1;
50         constraints.anchor = GridBagConstraints.SOUTH;
51         this.getContentPane().add (ch1, constraints);
52           
53         JCheckBox ch2=new JCheckBox("Texto   ");
54         constraints.gridx = 1; 
55         constraints.gridy = 2; 
56         constraints.gridwidth = 1; 
57         constraints.gridheight = 1;
58         constraints.anchor = GridBagConstraints.CENTER;
59         this.getContentPane().add (ch2, constraints);
60           
61         JCheckBox ch3=new JCheckBox("Codigo");
62         constraints.gridx = 1; 
63         constraints.gridy = 3; 
64         constraints.gridwidth = 1; 
65         constraints.gridheight = 1;
66         constraints.anchor = GridBagConstraints.NORTH;
67         this.getContentPane().add (ch3, constraints);  
68     }
69      
70     private void agregarTextArea2(){
71         JTextArea areaTexto2 = new JTextArea ();
72         GridBagConstraints constraints = new GridBagConstraints();
73         constraints.gridx = 2; 
74         constraints.gridy = 1; 
75         constraints.gridwidth = 1; 
76         constraints.gridheight = 1; 
77         this.getContentPane().add (areaTexto2, constraints);
78     }
79      
80     private void agregarRadioButton(){
81         GridBagConstraints constraints = new GridBagConstraints();
82         JRadioButton  radio = new JRadioButton("Seleccion",false);
83         constraints.gridx = 3; 
84         constraints.gridy = 1; 
85         constraints.gridwidth = 1; 
86         constraints.gridheight = 1;
87         constraints.anchor = GridBagConstraints.SOUTH;
88         this.getContentPane().add (radio, constraints);
89 
90         JRadioButton  radio2 = new JRadioButton("Todo         ",true);
91         constraints.gridx = 3; 
92         constraints.gridy = 2; 
93         constraints.gridwidth = 1; 
94         constraints.gridheight = 1;
95         constraints.anchor = GridBagConstraints.CENTER;
96         this.getContentPane().add (radio2, constraints);
97 
98         JRadioButton  radio3 = new JRadioButton("Applet      ",false);
99         constraints.gridx = 3; 
100         constraints.gridy = 3; 
101         constraints.gridwidth = 1; 
102         constraints.gridheight = 1;
103         constraints.anchor = GridBagConstraints.NORTH;
104         this.getContentPane().add (radio3, constraints);
105 
106         ButtonGroup grupoOpciones = new ButtonGroup();
107         grupoOpciones.add( radio );
108         grupoOpciones.add( radio2 );
109         grupoOpciones.add( radio3 );   
110     }
111     
112     private void agregarTextArea3(){
113         JTextArea areaTexto3 = new JTextArea ();
114         GridBagConstraints constraints = new GridBagConstraints();
115         constraints.gridx = 4; 
116         constraints.gridy = 1; 
117         constraints.gridwidth = 1; 
118         constraints.gridheight = 2; 
119         this.getContentPane().add (areaTexto3, constraints);
120     }
121       
122     private void agregarBotones(){
123         JButton boton1 = new JButton("   Aceptar  ");
124         GridBagConstraints constraints = new GridBagConstraints();
125         constraints.gridx = 5;
126         constraints.gridy = 1;
127         constraints.gridwidth = 1;
128         constraints.gridheight = 1;
129         constraints.weightx = 2.0;
130         constraints.weighty = 1.0;
131         constraints.anchor = GridBagConstraints.CENTER;
132         this.getContentPane().add (boton1, constraints);
133         constraints.weighty = 0.0;
134 
135         JButton boton2 = new JButton("  Cancelar ");
136         constraints.gridx = 5;
137         constraints.gridy = 2;
138         constraints.gridwidth = 1;
139         constraints.gridheight = 1;
140 
141     constraints.anchor = GridBagConstraints.NORTH;
142         this.getContentPane().add (boton2, constraints);
143 
144 
145         JButton boton3 = new JButton("Configurar");
146         constraints.gridx = 5;
147         constraints.gridy = 3;
148         constraints.gridwidth = 1;
149         constraints.gridheight = 1;
150         constraints.weighty = 1.0;
151         constraints.anchor = GridBagConstraints.CENTER;
152         this.getContentPane().add (boton3, constraints);
153         constraints.weighty = 0.0;
154 
155 
156         JButton boton4 = new JButton("    Ayuda    ");
157         constraints.gridx = 5;
158         constraints.gridy = 4;
159         constraints.gridwidth = 1;
160         constraints.gridheight = 1;
161         constraints.weightx = 1.0;
162         constraints.weighty = 1.0;
163         constraints.anchor = GridBagConstraints.NORTH;
164         this.getContentPane().add (boton4, constraints);
165         constraints.weighty = 1.0;
166     }
167       
168     private void agregarEtiqueta2(){
169         GridBagConstraints constraints = new GridBagConstraints();
170         JLabel eti2 = new JLabel ("Calidad de " + "Impresion   ");
171         constraints.gridx = 1;
172         constraints.gridy = 4;
173         constraints.gridwidth = 1;
174         constraints.gridheight = 1;
175         this.getContentPane().add (eti2, constraints);
176     }
177        
178     private void agregarComboBox(){
179          GridBagConstraints constraints = new GridBagConstraints();
180          String[] selecciones = {"Alta"};
181          JComboBox cb1 = new JComboBox(selecciones);
182          constraints.gridx = 2;
183          constraints.gridy = 4;
184          constraints.gridwidth = 1;
185          constraints.gridheight = 1;
186          this.getContentPane().add (cb1, constraints);
187     }
188        
189     private void agregarCheckBox2(){
190           JCheckBox ch4=new JCheckBox("Imprimir a archivo");
191           GridBagConstraints constraints = new GridBagConstraints();
192           constraints.gridx = 3; 
193           constraints.gridy = 4; 
194           constraints.gridwidth = 1; 
195           constraints.gridheight = 1;
196           constraints.weightx = 1.0;
197           this.getContentPane().add (ch4, constraints);
198           constraints.weightx = 0.0;
199     }
200 }

Descarga el Código
Interfaz de Impresora con GridBagLayout

Autor: Viruz study

Enlace: Interfaz con GridBagLayout