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1
11 package org.eclipse.pde.internal.ui.editor.schema;
12
13 import org.eclipse.jface.text.*;
14
15
16 public class SchemaDoubleClickStrategy implements ITextDoubleClickStrategy {
17 protected ITextViewer fText;
18 protected int fPos;
19 protected int fStartPos;
20 protected int fEndPos;
21 protected static char[] fgBrackets = { '(', ')', '"', '"' };
22
23 public SchemaDoubleClickStrategy() {
24 super();
25 }
26 public void doubleClicked(ITextViewer part) {
27 fPos = part.getSelectedRange().x;
28
29 if (fPos < 0)
30 return;
31
32 fText = part;
33
34 if (!selectComment())
35 selectWord();
36 }
37 protected boolean matchComment() {
38 IDocument doc = fText.getDocument();
39
40 try {
41 int pos = fPos;
42 char c = ' ';
43
44 while (pos >= 0) {
45 c = doc.getChar(pos);
46 if (Character.isWhitespace(c) || c == '\"')
47 break;
48 --pos;
49 }
50
51 if (c != '\"')
52 return false;
53
54 fStartPos = pos;
55
56 pos = fPos;
57 int length = doc.getLength();
58 c = ' ';
59
60 while (pos < length) {
61 c = doc.getChar(pos);
62 if (Character.isWhitespace(c) || c == '\"')
63 break;
64 ++pos;
65 }
66 if (c != '\"')
67 return false;
68
69 fEndPos = pos;
70
71 return true;
72
73 } catch (BadLocationException x) {
74 }
75
76 return false;
77 }
78 protected boolean matchWord() {
79
80 IDocument doc = fText.getDocument();
81
82 try {
83
84 int pos = fPos;
85 char c;
86
87 while (pos >= 0) {
88 c = doc.getChar(pos);
89 if (!Character.isJavaIdentifierPart(c))
90 break;
91 --pos;
92 }
93
94 fStartPos = pos;
95
96 pos = fPos;
97 int length = doc.getLength();
98
99 while (pos < length) {
100 c = doc.getChar(pos);
101 if (!Character.isJavaIdentifierPart(c))
102 break;
103 ++pos;
104 }
105
106 fEndPos = pos;
107
108 return true;
109
110 } catch (BadLocationException x) {
111 }
112
113 return false;
114 }
115 protected boolean selectComment() {
116 if (matchComment()) {
117 fText.setSelectedRange(fStartPos + 1, fEndPos);
118 return true;
119 }
120 return false;
121 }
122 protected void selectWord() {
123 if (matchWord())
124 fText.setSelectedRange(fStartPos + 1, fEndPos);
125 }
126 }
127 |
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