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


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33
34 package edu.rice.cs.drjava.ui.config;
35
36 import javax.swing.*;
37 import edu.rice.cs.drjava.ui.*;
38 import edu.rice.cs.drjava.config.*;
39 import edu.rice.cs.drjava.*;
40 import java.awt.*;
41 import java.awt.event.*;
42 import java.io.File JavaDoc;
43 import javax.swing.filechooser.FileFilter JavaDoc;
44
45 import java.util.ArrayList JavaDoc;
46
47 /** Graphical form of a VectorOption for the Extra Classpath/Sourcepath options. Uses a file chooser for each File element.
48  * @version $Id: VectorFileOptionComponent.java 4031 2006-11-15 22:09:06Z rcartwright $
49  */
50 public class VectorFileOptionComponent extends VectorOptionComponent<File JavaDoc> implements OptionConstants {
51   private FileFilter JavaDoc _fileFilter;
52   private JFileChooser _jfc;
53
54   
55   public VectorFileOptionComponent (VectorOption<File JavaDoc> opt, String JavaDoc text, Frame parent) {
56     super(opt, text, parent); // creates all four buttons
57
58     // set up JFileChooser
59 File JavaDoc workDir = new File JavaDoc(System.getProperty("user.home"));
60
61     _jfc = new JFileChooser(workDir);
62     _jfc.setDialogTitle("Select");
63     _jfc.setApproveButtonText("Select");
64     _jfc.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);
65     _jfc.setMultiSelectionEnabled(true);
66     _fileFilter = ClassPathFilter.ONLY;
67   }
68   
69   /** Constructor that allows for a tooltip description. */
70   public VectorFileOptionComponent (VectorOption<File JavaDoc> opt, String JavaDoc text, Frame parent, String JavaDoc description) {
71     this(opt, text, parent);
72     setDescription(description);
73   }
74   
75   /** Adds buttons to _buttonPanel */
76   protected void _addButtons() {
77     super._addButtons();
78     _buttonPanel.add(_moveUpButton);
79     _buttonPanel.add(_moveDownButton);
80   }
81
82   /** Displays the given value. */
83   public void setValue(ArrayList JavaDoc<File JavaDoc> files) {
84     _listModel.clear();
85     for (File JavaDoc f: files) _listModel.addElement(f);
86   }
87
88   /** Set the file filter for this vector option component. */
89   public void setFileFilter(FileFilter JavaDoc fileFilter) {
90     _fileFilter = fileFilter;
91   }
92   
93   /** Shows a file chooser for adding a file to the element. */
94   public void chooseFile() {
95     File JavaDoc selection = (File JavaDoc) _list.getSelectedValue();
96     if (selection != null) {
97       File JavaDoc parent = selection.getParentFile();
98       if (parent != null) {
99         _jfc.setCurrentDirectory(parent);
100       }
101     }
102
103     _jfc.setFileFilter(_fileFilter);
104
105     File JavaDoc[] c = null;
106     int returnValue = _jfc.showDialog(_parent, null);
107     if (returnValue == JFileChooser.APPROVE_OPTION) {
108       c = _jfc.getSelectedFiles();
109     }
110     if (c != null) {
111       for(int i = 0; i < c.length; i++) {
112         _listModel.addElement(c[i]);
113       }
114     }
115   }
116   
117   protected Action _getAddAction() {
118     return new AbstractAction("Add") {
119       public void actionPerformed(ActionEvent ae) {
120         chooseFile();
121         _list.setSelectedIndex(_listModel.getSize() - 1);
122         notifyChangeListeners();
123       }
124     };
125   }
126 }
127
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