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1
19
20 package org.netbeans.modules.lexer.demo;
21
22 import java.awt.event.ActionEvent  ;
23 import java.awt.event.InputEvent ;
24 import java.awt.event.KeyEvent ;
25 import java.io.File ;
26 import java.io.FileReader ;
27 import java.io.IOException ;
28 import java.io.InputStream ;
29 import java.io.InputStreamReader ;
30 import java.io.Reader ;
31 import javax.swing.JFrame ;
32 import javax.swing.JEditorPane ;
33 import javax.swing.KeyStroke ;
34 import javax.swing.text.BadLocationException ;
35 import javax.swing.text.Document ;
36 import javax.swing.text.JTextComponent ;
37 import javax.swing.text.PlainDocument ;
38 import javax.swing.text.TextAction ;
39 import javax.swing.event.DocumentListener ;
40 import javax.swing.event.DocumentEvent ;
41 import org.netbeans.api.lexer.Language;
42 import org.netbeans.api.lexer.TokenUpdater;
43
44
51
52 public class EditorPaneDemo extends DemoTokenUpdater {
53
54 private boolean elementChangeDump;
55
56 public EditorPaneDemo(Language language, boolean maintainLookbacks,
57 String initialContent) {
58
59 super(new PlainDocument (), language, maintainLookbacks);
60
61 JFrame frame = new JFrame ();
62 frame.addWindowListener(new java.awt.event.WindowAdapter () {
63 public void windowClosing(java.awt.event.WindowEvent evt) {
64 System.exit(0);
65 }
66 });
67
68 frame.setTitle("Test of " + splitClassName(language.getClass().getName())[1]
69 + " - Use Ctrl+L to dump tokens");
70
71 JEditorPane jep = new JEditorPane ();
72
73 Document doc = getDocument();
74 jep.setDocument(doc);
75 try {
77 if (initialContent != null) {
78 doc.insertString(0, initialContent, null);
79 }
80 } catch (BadLocationException e) {
81 e.printStackTrace();
82 return;
83 }
84
85 setDebugTokenChanges(true);
87
88 frame.getContentPane().add(jep);
89
90 DumpAction da = new DumpAction();
91 jep.registerKeyboardAction(da,
92 KeyStroke.getKeyStroke(KeyEvent.VK_L, InputEvent.CTRL_MASK), 0);
93
94 DebugTokenChangesAction dtca = new DebugTokenChangesAction();
95 jep.registerKeyboardAction(dtca,
96 KeyStroke.getKeyStroke(KeyEvent.VK_T, InputEvent.CTRL_MASK), 0);
97
98
99 System.err.println("NOTE: Press Ctrl+L to dump the document's token list.\n");
100 System.err.println(" Press Ctrl+T to toggle debugging of token changes.\n");
101
102 dump();
104
105 frame.setSize(400, 300);
106 frame.setVisible(true);
107
108 }
109
110 private static String [] splitClassName(String classFullName) {
111 int lastDotIndex = classFullName.lastIndexOf('.');
112 return new String [] {
113 (lastDotIndex >= 0) ? classFullName.substring(0, lastDotIndex) : "", classFullName.substring(lastDotIndex + 1) };
116 }
117
118 private void dump() {
119 System.err.println(allTokensToString());
120 }
121
122 private class DumpAction extends TextAction {
123
124 DumpAction() {
125 super("dump");
126 }
127
128 public void actionPerformed(ActionEvent evt) {
129 dump();
130 }
131
132 }
133
134 private class DebugTokenChangesAction extends TextAction {
135
136 DebugTokenChangesAction() {
137 super("debugTokenChanges");
138 }
139
140 public void actionPerformed(ActionEvent evt) {
141 boolean debugTokenChanges = !getDebugTokenChanges();
142 setDebugTokenChanges(debugTokenChanges);
143 System.out.println("Debugging of token changes turned "
144 + (debugTokenChanges ? "on" : "off")
145 );
146 }
147
148 }
149
150
152 public static void main (String [] args) {
153 try {
154 if (args.length == 0) {
155 System.err.println("Usage: java " + EditorPaneDemo.class.getName ()
156 + " <language-class-name> [file-to-load]");
157 System.exit (1);
158 }
159
160 Class langCls = Class.forName (args[0]);
161
162 java.lang.reflect.Method m = langCls.getDeclaredMethod("get", new Class [0]);
163 Language language = (Language)m.invoke (null, new Object [0]);
164
165 String content = null;
166
167 if (args.length > 1) {
168 String contentFileName = args[1];
169 File contentFile = new File (contentFileName);
170 if (contentFile.exists()) {
171 Reader reader = new FileReader (contentFile);
172 char[] contentChars = new char[(int)contentFile.length() + 1];
173 int totalReadCount = 0;
174 while (true) {
175 int readCount = reader.read(contentChars, totalReadCount,
176 contentChars.length - totalReadCount);
177 if (readCount == -1) { break;
179 }
180 totalReadCount += readCount;
181 }
182
183 content = new String (contentChars, 0, totalReadCount);
184
185 } else { System.err.println("Input file NOT FOUND:\n"
187 + contentFile);
188 }
189 }
190
191 new EditorPaneDemo(language, false, content);
192
193 } catch (Exception ex) {
194 ex.printStackTrace();
195 }
196 }
197
198 }
199
200 |
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