MultilineLabel


1   /* HEDAER */
2   
3   package com.sshtools.ui.swing;
4   
5   import java.util.StringTokenizer  ;
6   
7   import java.awt.Font  ;
8   import java.awt.GridBagConstraints  ;
9   import java.awt.GridBagLayout  ;
10  import javax.swing.JLabel  ;
11  import javax.swing.JPanel  ;
12  
13  /**
14   * Swing component that takes a string, splits it up into lines based on the
15   * newline character and displays each line.
16   * 
17   * @author $Author: brett $
18   */
19  
20  public class MultilineLabel extends JPanel   {
21  
22      // Private instance variables
23  
24      private GridBagConstraints   constraints;
25  
26      private String   text;
27  
28      /**
29       * Creates a new MultilineLabel object.
30       */
31  
32      public MultilineLabel() {
33  
34          this(""); //$NON-NLS-1$
35  
36      }
37  
38      /**
39       * Creates a new MultilineLabel object.
40       * 
41       * @param text
42       */
43  
44      public MultilineLabel(String   text) {
45  
46          super(new GridBagLayout  ());
47  
48          constraints = new GridBagConstraints  ();
49  
50          constraints.anchor = GridBagConstraints.NORTHWEST;
51  
52          constraints.fill = GridBagConstraints.NONE;
53  
54          setText(text);
55  
56      }
57  
58      /**
59       * Set the font
60       * 
61       * @param f font
62       */
63  
64      public void setFont(Font   f) {
65  
66          super.setFont(f);
67  
68          for (int i = 0; i < getComponentCount(); i++) {
69  
70              getComponent(i).setFont(f);
71  
72          }
73  
74      }
75  
76      /**
77       * Set the font
78       * 
79       * @param text
80       */
81  
82      public void setText(String   text) {
83  
84          this.text = text;
85  
86          removeAll();
87  
88          StringTokenizer   tok = new StringTokenizer  (text, "\n"); //$NON-NLS-1$
89  
90          constraints.weighty = 0.0;
91  
92          constraints.weightx = 1.0;
93  
94          while (tok.hasMoreTokens()) {
95  
96              String   t = tok.nextToken();
97  
98              if (!tok.hasMoreTokens()) {
99  
100                 constraints.weighty = 1.0;
101 
102             }
103 
104             UIUtil.jGridBagAdd(this, new JLabel  (t), constraints,
105 
106             GridBagConstraints.REMAINDER);
107 
108         }
109 
110         revalidate();
111 
112         repaint();
113 
114     }
115 
116     /**
117      * Get the text
118      * 
119      * @return text
120      */
121 
122     public String   getText() {
123 
124         return text;
125 
126     }
127 
128 }
129
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