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Java > Open Source Codes > rero > dialogs > HelpWindow


1 package rero.dialogs;
2
3 import javax.swing.*;
4 import javax.swing.event.*;
5 import javax.swing.tree.*;
6
7 import java.awt.*;
8 import java.awt.event.*;
9
10 import rero.config.*;
11 import rero.dialogs.help.*;
12 import rero.gui.*;
13
14 import java.net.*;
15
16 import java.util.*;
17
18 public class HelpWindow extends JDialog implements HyperlinkListener
19 {
20     private static HelpWindow dialog;
21     private static HashMap helpData = new HashMap();
22     private static HelpData commandData;
23
24     private JEditorPane display;
25     private JScrollPane scroller;
26
27     public static LinkedList getBuiltInAliases()
28     {
29        if (commandData == null)
30            commandData = new HelpData();
31
32        return commandData.getAliases();
33     }
34
35     public static HelpData getCommandData()
36     {
37        return commandData;
38     }
39
40     public String JavaDoc getCommand(String JavaDoc key)
41     {
42        return commandData.getCommand(key).toString();
43     }
44
45     public void scrollTo(String JavaDoc ref)
46     {
47        display.scrollToReference(ref);
48     }
49
50     public void updateText(String JavaDoc text)
51     {
52        display.setText(text);
53        display.setCaretPosition(0);
54     }
55
56     private static Frame frame;
57
58     public static void initialize(Component comp)
59     {
60         if (JOptionPane.getFrameForComponent(comp) != frame)
61         {
62            frame = JOptionPane.getFrameForComponent(comp);
63            dialog = new HelpWindow(frame);
64     }
65     }
66
67     public static String JavaDoc showDialog(Component comp)
68     {
69         KeyBindings.is_dialog_active = true;
70         dialog.setLocationRelativeTo(comp);
71         dialog.setVisible(true);
72
73         dialog.addWindowListener(new WindowAdapter()
74         {
75            public void windowClosing(WindowEvent ev) { KeyBindings.is_dialog_active = false; }
76         });
77         return "";
78     }
79
80     private HelpWindow(Frame frame)
81     {
82     super(frame, "jIRCii Help", false);
83
84         if (commandData == null)
85            commandData = new HelpData();
86         
87         //buttons
88 JButton closeButton = new JButton("Ok");
89         closeButton.setMnemonic('O');
90
91         closeButton.addActionListener(new ActionListener()
92         {
93             public void actionPerformed(ActionEvent e)
94             {
95                 HelpWindow.dialog.setVisible(false);
96                 KeyBindings.is_dialog_active = false;
97             }
98         });
99
100         getContentPane().setLayout(new BorderLayout(5, 5));
101         
102     JPanel main = new JPanel();
103     main.setLayout(new BorderLayout(5, 5));
104     main.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
105
106         getContentPane().add(main, BorderLayout.CENTER);
107
108         //
109 // Left - the tabbed pane and its doings
110 //
111 HelpNormal general = new HelpNormal();
112         general.setHelp(this);
113
114         HelpCommands commands = new HelpCommands();
115         commands.setHelp(this);
116
117     JTabbedPane left = new JTabbedPane();
118     left.addTab("Help", null, general.getNavigation(), "detailed information.");
119     left.addTab("Commands", null, commands.getNavigation(), "jIRCii command reference.");
120
121         left.setSelectedIndex(0);
122         left.setPreferredSize(new Dimension(175, 295));
123         
124     //
125 // Center - the display pane and its doings
126 //
127 JPanel center = new JPanel();
128     center.setLayout(new BorderLayout(5, 5));
129         JPanel space = new JPanel();
130     space.setPreferredSize(new Dimension(0, 15));
131
132     center.add(space, BorderLayout.NORTH);
133         
134     display = new JTextPane();
135         display.setEditable(false);
136         display.setContentType("text/html"); // so we can do some nice formatting of the help text.
137 display.setOpaque(true);
138         display.setBackground(Color.white);
139
140         display.addHyperlinkListener(this);
141   
142         scroller = new JScrollPane(display);
143         scroller.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
144         scroller.setPreferredSize(new Dimension(250, 250));
145
146         center.add(scroller, BorderLayout.CENTER);
147
148         //
149 // Bottom - a Close button aligned to the right
150 //
151 JPanel south = new JPanel();
152     south.setLayout(new BorderLayout(5, 5));
153
154     south.add(closeButton, BorderLayout.EAST);
155         south.add(new JPanel(), BorderLayout.CENTER);
156
157     //
158 // putting it all together
159 //
160 main.add(left, BorderLayout.WEST);
161     main.add(center, BorderLayout.CENTER);
162         main.add(south, BorderLayout.SOUTH);
163
164         pack();
165
166     setSize(new Dimension(600, 363));
167 // setSize(new Dimension(605, 363));
168
169         general.showHelpOn("About");
170     }
171
172     public void hyperlinkUpdate(HyperlinkEvent ev)
173     {
174         if (ev.getEventType() == HyperlinkEvent.EventType.ACTIVATED)
175         {
176               try
177               {
178                  if (ev.getURL().getRef() != null)
179                  {
180                     display.scrollToReference(ev.getURL().getRef());
181                  }
182                  else
183                  {
184                     Runtime.getRuntime().exec(ClientState.getClientState().getString("ui.openfiles", ClientDefaults.ui_openfiles) + " " + ev.getURL().toString());
185                  }
186               }
187               catch (Exception JavaDoc ex) { }
188         }
189     }
190 }
191
192
193
194
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