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


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33
34 package edu.rice.cs.drjava.ui.config;
35
36 import javax.swing.*;
37 import edu.rice.cs.drjava.config.*;
38 import edu.rice.cs.drjava.*;
39 import java.awt.*;
40 import java.awt.event.*;
41
42
43 /**
44  * Graphical form of a BooleanOption.
45  * @version $Id: BooleanOptionComponent.java 3900 2006-06-29 13:16:38Z rcartwright $
46  */
47 public class BooleanOptionComponent extends OptionComponent<Boolean JavaDoc> {
48   protected JCheckBox _jcb;
49
50   /**
51    * Constructs a new BooleanOptionComponent.
52    * @param opt the BooleanOption this component represents
53    * @param text the text to display with the option
54    * @param parent the parent frame
55    */
56   public BooleanOptionComponent(BooleanOption opt, String JavaDoc text, Frame parent) {
57     super(opt, "", parent);
58     _jcb = new JCheckBox();
59     _jcb.setText(text);
60     _jcb.addActionListener(new ActionListener() {
61       public void actionPerformed(ActionEvent e) { notifyChangeListeners(); }
62     });
63     
64     _jcb.setSelected(DrJava.getConfig().getSetting(_option).booleanValue());
65   }
66
67   /** Constructs a new BooleanOptionComponent with a tooltip description.
68    * @param opt the BooleanOption this component represents
69    * @param text the text to display with the option
70    * @param parent the parent frame
71    * @param description text to show in a tooltip over
72    */
73   public BooleanOptionComponent(BooleanOption opt, String JavaDoc text,
74                                 Frame parent, String JavaDoc description) {
75     this(opt, text, parent);
76     setDescription(description);
77   }
78
79   /** Sets the tooltip description text for this option.
80    * @param description the tooltip text
81    */
82   public void setDescription(String JavaDoc description) {
83     _jcb.setToolTipText(description);
84     _label.setToolTipText(description);
85   }
86
87   /** Updates the config object with the new setting.
88    * @return true if the new value is set successfully
89    */
90   public boolean updateConfig() {
91     Boolean JavaDoc oldValue = DrJava.getConfig().getSetting(_option);
92     Boolean JavaDoc newValue = Boolean.valueOf(_jcb.isSelected());
93     
94     if (!oldValue.equals(newValue)) DrJava.getConfig().setSetting(_option, newValue);
95
96     return true;
97   }
98   
99   /** Displays the given value. */
100   public void setValue(Boolean JavaDoc value) {
101     _jcb.setSelected(value.booleanValue());
102   }
103   
104   /**
105    * Return's this OptionComponent's configurable component.
106    */
107   public JComponent getComponent() { return _jcb; }
108 }
109
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