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Java > Open Source Codes > edu > rice > cs > drjava > ui > config > StringOptionComponent


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33
34 package edu.rice.cs.drjava.ui.config;
35
36 import javax.swing.*;
37 import javax.swing.event.*;
38 import edu.rice.cs.drjava.config.*;
39 import edu.rice.cs.drjava.*;
40 import java.awt.*;
41
42
43 /** Graphical form of a StringOption.
44  * @version $Id: StringOptionComponent.java 3816 2006-04-20 19:54:29Z rcartwright $
45  */
46 public class StringOptionComponent extends OptionComponent<String JavaDoc> {
47   private JTextField _jtf;
48
49   public StringOptionComponent(StringOption opt, String JavaDoc text, Frame parent) {
50     super(opt, text, parent);
51     _jtf = new JTextField();
52     _jtf.setText(_option.format(DrJava.getConfig().getSetting(_option)));
53     _jtf.getDocument().addDocumentListener(new DocumentListener() {
54       public void insertUpdate(DocumentEvent e) { notifyChangeListeners(); }
55       public void removeUpdate(DocumentEvent e) { notifyChangeListeners(); }
56       public void changedUpdate(DocumentEvent e) { notifyChangeListeners(); }
57     });
58   }
59
60   /** Constructor that allows for a tooltip description. */
61   public StringOptionComponent (StringOption opt, String JavaDoc text, Frame parent, String JavaDoc description) {
62     this(opt, text, parent);
63     setDescription(description);
64   }
65
66   /** Sets the tooltip description text for this option.
67    * @param description the tooltip text
68    */
69   public void setDescription(String JavaDoc description) {
70     _jtf.setToolTipText(description);
71     _label.setToolTipText(description);
72   }
73
74   /** Updates the config object with the new setting.
75    * @return true if the new value is set successfully
76    */
77   public boolean updateConfig() {
78     String JavaDoc oldValue = DrJava.getConfig().getSetting(_option);
79     String JavaDoc newValue = _option.parse(_jtf.getText().trim());
80
81     if (!oldValue.equals(newValue)) {
82       DrJava.getConfig().setSetting(_option, newValue);
83     }
84     return true;
85   }
86
87   /** Displays the given value. */
88   public void setValue(String JavaDoc value) {
89     _jtf.setText(value);
90   }
91
92   /**
93    * Return's this OptionComponent's configurable component.
94    */
95   public JComponent getComponent() { return _jtf; }
96 }
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