Crea un TextBox estilo Metro para java

01 package org.bolivia.tbox;
02 import java.awt.Color;
03 import java.awt.Cursor;
04 import java.awt.Dimension;
05 import java.awt.Insets;
06 import java.awt.event.ComponentEvent;
07 import java.awt.event.ComponentListener;
08 import java.awt.event.MouseEvent;
09 import java.awt.event.MouseListener;
10 import javax.swing.BorderFactory;
11 import javax.swing.ImageIcon;
12 import javax.swing.JButton;
13 import javax.swing.JTextField;
14 import javax.swing.border.Border;
15 /**
16  * @web https://www.jc-mouse.net/
17  * @author Mouse
18  */
19 public class MetroTextBox extends JTextField implements ComponentListener {
20  
21     private final JButton button = new JButton();//X
22     private Color borderColor = Color.black;
23     //imagenes X
24     private ImageIcon iconBlack =new ImageIcon(getClass().getResource("/org/bolivia/resources/metro_x_b.png"));
25     private ImageIcon iconWhite =new ImageIcon(getClass().getResource("/org/bolivia/resources/metro_x_w.png"));
26     private boolean xBlackIcon =true;    
27     private Dimension dimension = new Dimension(300,42);//tamaño del textbox
28     //la altura del boton
29     private int heightBtn = dimension.height - 10;
30     
31     /**Constructor de clase */
32     public MetroTextBox()
33     {        
34         setSize(dimension);
35         setPreferredSize(dimension);
36         
37         //propiedades del button
38         button.setText("");                        
39         button.setBorderPainted(false);
40         button.setContentAreaFilled(false);
41         button.setMargin(new Insets(2, 2, 2, 2));
42         button.setVisible(true);
43         button.setFocusPainted(false);
44         button.setCursor(new Cursor(Cursor.HAND_CURSOR));
45         add( button );
46         setVisible(true);
47         addComponentListener(this);                
48         setSelectionColor(button.getBackground());
49         updateButton();        
50         //
51         button.addMouseListener( new MouseListener(){
52 
53             @Override
54             public void mouseClicked(MouseEvent e) {                
55                 ((JTextField) button.getParent()).setText(""); //elimina contenido
56             }
57 
58             @Override
59             public void mousePressed(MouseEvent e) {/*...*/}
60 
61             @Override
62             public void mouseReleased(MouseEvent e) {/*...*/}
63 
64             @Override
65             public void mouseEntered(MouseEvent e) {
66                 button.setOpaque(true);  
67                 button.setIcon( (xBlackIcon)? iconBlack:iconWhite );     
68             }
69 
70             @Override
71             public void mouseExited(MouseEvent e) {
72                 button.setOpaque(false);  
73                 button.setIcon( null );     
74             }
75             
76         });
77         
78     }
79     //------------
80     public boolean isxDarkIcon() {
81         return xBlackIcon;
82     }
83 
84     public void setxDarkIcon(boolean xDarkIcon) {
85         this.xBlackIcon = xDarkIcon;        
86     }
87     
88     public Color getBotonColor() {
89         return button.getBackground();
90     }
91 
92     public void setBotonColor(Color botonColor) {
93         button.setBackground(botonColor); 
94         setSelectionColor(button.getBackground());
95     }
96     
97     public Color getBorderColor() {
98         return borderColor;
99     }
100 
101     public void setBorderColor(Color borderColor) {
102         this.borderColor = borderColor;
103         updateBorder();
104     }
105     //------------
106     /** Actualiza las propiedades del borde del TextField */
107     private void updateBorder()
108     {
109         Border border = BorderFactory.createLineBorder( borderColor ,2);
110         setBorder(BorderFactory.createCompoundBorder(border, 
111             BorderFactory.createEmptyBorder(10, 10, 10, button.getSize().width + 5 )));
112         
113     }
114     
115     /** Ajusta la dimension y posicion del boton X*/
116     private void updateButton()
117     {
118         //tamaño boton
119         heightBtn = this.getSize().height - 10;
120         button.setSize( new Dimension(heightBtn, heightBtn));
121         button.setPreferredSize( new Dimension(heightBtn, heightBtn) );        
122         //posicion
123         button.setLocation(getWidth()-button.getWidth()-5, 5);
124         updateBorder();
125     }
126     
127     //------------
128     @Override
129     public void componentResized(ComponentEvent e) {
130         updateButton(); 
131     }
132 
133     @Override
134     public void componentMoved(ComponentEvent e) {/*...*/}
135 
136     @Override
137     public void componentShown(ComponentEvent e) {/*...*/}
138 
139     @Override
140     public void componentHidden(ComponentEvent e) {/*...*/}    
141     //------------
142 }