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1
19
20 package org.netbeans.modules.ant.debugger;
21
22 import java.io.IOException  ;
23 import java.lang.reflect.InvocationTargetException ;
24 import javax.swing.JEditorPane ;
25 import javax.swing.SwingUtilities ;
26 import javax.swing.text.BadLocationException ;
27 import javax.swing.text.Element ;
28 import javax.swing.text.StyledDocument ;
29 import org.netbeans.api.debugger.DebuggerEngine;
30 import org.openide.ErrorManager;
31
32 import org.openide.cookies.EditorCookie;
33 import org.openide.loaders.DataObject;
34 import org.openide.text.Annotation;
35 import org.openide.text.DataEditorSupport;
36 import org.openide.text.Line;
37 import org.openide.text.NbDocument;
38 import org.openide.text.Line.Part;
39 import org.openide.util.RequestProcessor;
40 import org.netbeans.api.debugger.DebuggerManager;
41 import org.netbeans.api.debugger.Watch;
42
43 import org.openide.nodes.Node;
44 import org.openide.windows.TopComponent;
45
46
47 public class ToolTipAnnotation extends Annotation implements Runnable {
48
49 private Part lp;
50 private EditorCookie ec;
51
52 public String getShortDescription () {
53 DebuggerEngine currentEngine = DebuggerManager.getDebuggerManager ().
54 getCurrentEngine ();
55 if (currentEngine == null) return null;
56 AntDebugger d = (AntDebugger) currentEngine.lookupFirst
57 (null, AntDebugger.class);
58 if (d == null) return null;
59
60 Part lp = (Part)
61 getAttachedAnnotatable();
62 Line line = lp.getLine ();
63 DataObject dob = DataEditorSupport.findDataObject (line);
64 if (dob == null) return null;
65 EditorCookie ec =
66 (EditorCookie) dob.getCookie
67 (EditorCookie.class);
68
69 if (ec == null) return null;
70 this.lp = lp;
71 this.ec = ec;
72 RequestProcessor.getDefault ().post (this);
73 return null;
74 }
75
76 public void run () {
77 if (lp == null || ec == null) return ;
79 StyledDocument doc;
80 try {
81 doc = ec.openDocument();
82 } catch (IOException ex) {
83 return ;
84 }
85 JEditorPane ep = getCurrentEditor ();
86 if (ep == null) return ;
87 String expression = getIdentifier (
88 doc,
89 ep,
90 NbDocument.findLineOffset (
91 doc,
92 lp.getLine ().getLineNumber ()
93 ) + lp.getColumn ()
94 );
95 if (expression == null) return ;
96 DebuggerEngine currentEngine = DebuggerManager.getDebuggerManager ().
97 getCurrentEngine ();
98 if (currentEngine == null) return;
99 AntDebugger d = (AntDebugger) currentEngine.lookupFirst
100 (null, AntDebugger.class);
101 if (d == null) return;
102 String value = d.evaluate (expression);
103 if ( value == null ||
104 value.equals (expression)
105 ) return;
106 String toolTipText = expression + " = " + value;
107 firePropertyChange (PROP_SHORT_DESCRIPTION, null, toolTipText);
108 }
109
110 public String getAnnotationType () {
111 return null; }
113
114 private static String getIdentifier (
115 StyledDocument doc,
116 JEditorPane ep,
117 int offset
118 ) {
119 String t = null;
120 if ( (ep.getSelectionStart () <= offset) &&
121 (offset <= ep.getSelectionEnd ())
122 ) t = ep.getSelectedText ();
123 if (t != null) return t;
124
125 int line = NbDocument.findLineNumber (
126 doc,
127 offset
128 );
129 int col = NbDocument.findLineColumn (
130 doc,
131 offset
132 );
133 try {
134 Element lineElem =
135 NbDocument.findLineRootElement (doc).
136 getElement (line);
137
138 if (lineElem == null) return null;
139 int lineStartOffset = lineElem.getStartOffset ();
140 int lineLen = lineElem.getEndOffset() - lineStartOffset;
141 t = doc.getText (lineStartOffset, lineLen);
142 lineLen = t.length ();
143 int identStart = col;
144 while ( (identStart > 0) &&
145 (t.charAt (identStart - 1) != '"')
146 ) {
147 identStart--;
148 }
149 int identEnd = Math.max (col, 1);
150 while ( (identEnd < lineLen) &&
151 (t.charAt (identEnd - 1) != '"')
152 ) {
153 identEnd++;
154 }
155
156 if (identStart == identEnd) return null;
157 return t.substring (identStart, identEnd - 1);
158 } catch (BadLocationException e) {
159 return null;
160 }
161 }
162
163
168 private static JEditorPane getCurrentEditor_() {
169 EditorCookie e = getCurrentEditorCookie ();
170 if (e == null) return null;
171 JEditorPane [] op = e.getOpenedPanes ();
172 if ((op == null) || (op.length < 1)) return null;
173 return op [0];
174 }
175
176 static JEditorPane getCurrentEditor () {
177 if (SwingUtilities.isEventDispatchThread()) {
178 return getCurrentEditor_();
179 } else {
180 final JEditorPane [] ce = new JEditorPane [1];
181 try {
182 SwingUtilities.invokeAndWait(new Runnable () {
183 public void run() {
184 ce[0] = getCurrentEditor_();
185 }
186 });
187 } catch (InvocationTargetException ex) {
188 ErrorManager.getDefault().notify(ex.getTargetException());
189 } catch (InterruptedException ex) {
190 ErrorManager.getDefault().notify(ex);
191 }
192 return ce[0];
193 }
194 }
195
196
201 private static EditorCookie getCurrentEditorCookie () {
202 Node[] nodes = TopComponent.getRegistry ().getActivatedNodes ();
203 if ( (nodes == null) ||
204 (nodes.length != 1) ) return null;
205 Node n = nodes [0];
206 return (EditorCookie) n.getCookie (
207 EditorCookie.class
208 );
209 }
210 }
211
212 |
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