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1
11 package org.eclipse.ant.internal.ui.editor.text;
12
13 import java.util.ArrayList  ;
14 import java.util.HashMap ;
15 import java.util.Iterator ;
16 import java.util.List ;
17 import java.util.Map ;
18
19 import org.eclipse.ant.internal.ui.editor.AntEditorMessages;
20 import org.eclipse.jface.internal.text.html.HTMLPrinter;
21 import org.eclipse.jface.text.BadLocationException;
22 import org.eclipse.jface.text.IDocument;
23 import org.eclipse.jface.text.Position;
24 import org.eclipse.jface.text.source.Annotation;
25 import org.eclipse.jface.text.source.IAnnotationHover;
26 import org.eclipse.jface.text.source.IAnnotationModel;
27 import org.eclipse.jface.text.source.ISourceViewer;
28
29
30
34 public class XMLAnnotationHover implements IAnnotationHover {
35
36
39 private int compareRulerLine(Position position, IDocument document, int line) {
40
41 if (position.getOffset() > -1 && position.getLength() > -1) {
42 try {
43 int xmlAnnotationLine= document.getLineOfOffset(position.getOffset());
44 if (line == xmlAnnotationLine)
45 return 1;
46 if (xmlAnnotationLine <= line && line <= document.getLineOfOffset(position.getOffset() + position.getLength()))
47 return 2;
48 } catch (BadLocationException x) {
49 }
50 }
51
52 return 0;
53 }
54
55
58 private List getXMLAnnotationsForLine(ISourceViewer viewer, int line) {
59
60 IDocument document= viewer.getDocument();
61 IAnnotationModel model= viewer.getAnnotationModel();
62
63 if (model == null)
64 return null;
65
66 List exact= new ArrayList ();
67
68 Iterator e= model.getAnnotationIterator();
69 Map messagesAtPosition= new HashMap ();
70 while (e.hasNext()) {
71 Object o= e.next();
72 if (o instanceof Annotation) {
73 Annotation a= (Annotation)o;
74 Position position= model.getPosition(a);
75 if (position == null)
76 continue;
77
78 if (isDuplicateXMLAnnotation(messagesAtPosition, position, a.getText()))
79 continue;
80
81 switch (compareRulerLine(position, document, line)) {
82 case 1:
83 exact.add(a);
84 break;
85 }
86 }
87 }
88
89 return exact;
90 }
91
92 private boolean isDuplicateXMLAnnotation(Map messagesAtPosition, Position position, String message) {
93 if (messagesAtPosition.containsKey(position)) {
94 Object value= messagesAtPosition.get(position);
95 if (message.equals(value))
96 return true;
97
98 if (value instanceof List ) {
99 List messages= (List )value;
100 if (messages.contains(message)) {
101 return true;
102 }
103 messages.add(message);
104 } else {
105 ArrayList messages= new ArrayList ();
106 messages.add(value);
107 messages.add(message);
108 messagesAtPosition.put(position, messages);
109 }
110 } else
111 messagesAtPosition.put(position, message);
112 return false;
113 }
114
115
118 public String getHoverInfo(ISourceViewer sourceViewer, int lineNumber) {
119 List xmlAnnotations= getXMLAnnotationsForLine(sourceViewer, lineNumber);
120 if (xmlAnnotations != null) {
121
122 if (xmlAnnotations.size() == 1) {
123
124 Annotation xmlAnnotation= (Annotation)xmlAnnotations.get(0);
126 String message= xmlAnnotation.getText();
127 if (message != null && message.trim().length() > 0) {
128 return formatSingleMessage(message);
129 }
130
131 } else {
132
133 List messages= new ArrayList (xmlAnnotations.size());
134 Iterator e= xmlAnnotations.iterator();
135 while (e.hasNext()) {
136 Annotation xmlAnnotation= (Annotation)e.next();
137 String message= xmlAnnotation.getText();
138 if (message != null && message.trim().length() > 0) {
139 messages.add(message.trim());
140 }
141 }
142
143 if (messages.size() == 1) {
144 return formatSingleMessage((String ) messages.get(0));
145 }
146
147 if (messages.size() > 1) {
148 return formatMultipleMessages(messages);
149 }
150 }
151 }
152
153 return null;
154 }
155
156
159 private String formatSingleMessage(String message) {
160 StringBuffer buffer= new StringBuffer ();
161 HTMLPrinter.addPageProlog(buffer);
162 HTMLPrinter.addParagraph(buffer, HTMLPrinter.convertToHTMLContent(message));
163 HTMLPrinter.addPageEpilog(buffer);
164 return buffer.toString();
165 }
166
167
170 private String formatMultipleMessages(List messages) {
171 StringBuffer buffer= new StringBuffer ();
172 HTMLPrinter.addPageProlog(buffer);
173 HTMLPrinter.addParagraph(buffer, HTMLPrinter.convertToHTMLContent(AntEditorMessages.getString("AntAnnotationHover.multipleMarkersAtThisLine")));
175 HTMLPrinter.startBulletList(buffer);
176 Iterator e= messages.iterator();
177 while (e.hasNext())
178 HTMLPrinter.addBullet(buffer, HTMLPrinter.convertToHTMLContent((String ) e.next()));
179 HTMLPrinter.endBulletList(buffer);
180
181 HTMLPrinter.addPageEpilog(buffer);
182 return buffer.toString();
183 }
184 }
185 |
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