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1
11 package org.eclipse.jdt.internal.ui.fix;
12
13 import java.util.HashMap  ;
14 import java.util.Map ;
15
16 import org.eclipse.text.edits.DeleteEdit;
17 import org.eclipse.text.edits.MultiTextEdit;
18 import org.eclipse.text.edits.TextEdit;
19
20 import org.eclipse.core.runtime.CoreException;
21 import org.eclipse.core.runtime.IStatus;
22 import org.eclipse.core.runtime.Status;
23
24 import org.eclipse.jface.text.BadLocationException;
25 import org.eclipse.jface.text.Document;
26 import org.eclipse.jface.text.IRegion;
27 import org.eclipse.jface.text.TextUtilities;
28
29 import org.eclipse.ltk.core.refactoring.CategorizedTextEditGroup;
30 import org.eclipse.ltk.core.refactoring.GroupCategory;
31 import org.eclipse.ltk.core.refactoring.GroupCategorySet;
32 import org.eclipse.ltk.core.refactoring.TextChange;
33
34 import org.eclipse.jdt.core.ICompilationUnit;
35 import org.eclipse.jdt.core.formatter.CodeFormatter;
36
37 import org.eclipse.jdt.internal.corext.fix.IFix;
38 import org.eclipse.jdt.internal.corext.refactoring.changes.CompilationUnitChange;
39 import org.eclipse.jdt.internal.corext.util.CodeFormatterUtil;
40
41 import org.eclipse.jdt.internal.ui.JavaPlugin;
42 import org.eclipse.jdt.internal.ui.dialogs.StatusInfo;
43
44 public class CodeFormatFix implements IFix {
45
46 public static IFix createCleanUp(ICompilationUnit cu, boolean format, boolean removeTrailingWhitespacesAll, boolean removeTrailingWhitespacesIgnorEmpty) throws CoreException {
47 if (!format && !removeTrailingWhitespacesAll && !removeTrailingWhitespacesIgnorEmpty)
48 return null;
49
50 if (format) {
51 Map fomatterSettings= new HashMap (cu.getJavaProject().getOptions(true));
52
53 String content= cu.getBuffer().getContents();
54 Document document= new Document(content);
55
56 TextEdit edit= CodeFormatterUtil.reformat(CodeFormatter.K_COMPILATION_UNIT, content, 0, TextUtilities.getDefaultLineDelimiter(document), fomatterSettings);
57 if (edit == null || !edit.hasChildren())
58 return null;
59
60 String label= MultiFixMessages.CodeFormatFix_description;
61 TextChange change= new CompilationUnitChange(label, cu);
62 change.setEdit(edit);
63
64 CategorizedTextEditGroup group= new CategorizedTextEditGroup(label, new GroupCategorySet(new GroupCategory(label, label, label)));
65 group.addTextEdit(edit);
66 change.addTextEditGroup(group);
67
68 return new CodeFormatFix(change, cu);
69 } else if (removeTrailingWhitespacesAll || removeTrailingWhitespacesIgnorEmpty) {
70 try {
71 MultiTextEdit multiEdit= new MultiTextEdit();
72 Document document= new Document(cu.getBuffer().getContents());
73
74 int lineCount= document.getNumberOfLines();
75 for (int i= 0; i < lineCount; i++) {
76
77 IRegion region= document.getLineInformation(i);
78 if (region.getLength() == 0)
79 continue;
80
81 int lineStart= region.getOffset();
82 int lineExclusiveEnd= lineStart + region.getLength();
83 int j= getIndexOfRightMostNoneWhitspaceCharacter(lineStart, lineExclusiveEnd - 1, document);
84
85 if (removeTrailingWhitespacesAll) {
86 j++;
87 if (j < lineExclusiveEnd)
88 multiEdit.addChild(new DeleteEdit(j, lineExclusiveEnd - j));
89 } else if (removeTrailingWhitespacesIgnorEmpty) {
90 if (j >= lineStart) {
91 if (document.getChar(j) == '*' && getIndexOfRightMostNoneWhitspaceCharacter(lineStart, j - 1, document) < lineStart) {
92 j++;
93 }
94 j++;
95 if (j < lineExclusiveEnd)
96 multiEdit.addChild(new DeleteEdit(j, lineExclusiveEnd - j));
97 }
98 }
99 }
100
101 if (multiEdit.getChildrenSize() == 0)
102 return null;
103
104 String label= MultiFixMessages.CodeFormatFix_RemoveTrailingWhitespace_changeDescription;
105 CompilationUnitChange change= new CompilationUnitChange(label, cu);
106 change.setEdit(multiEdit);
107
108 CategorizedTextEditGroup group= new CategorizedTextEditGroup(label, new GroupCategorySet(new GroupCategory(label, label, label)));
109 group.addTextEdit(multiEdit);
110 change.addTextEditGroup(group);
111
112 return new CodeFormatFix(change, cu);
113 } catch (BadLocationException x) {
114 throw new CoreException(new Status(IStatus.ERROR, JavaPlugin.getPluginId(), 0, "", x)); }
116 }
117
118 return null;
119 }
120
121
133 private static int getIndexOfRightMostNoneWhitspaceCharacter(int start, int end, Document document) throws BadLocationException {
134 int position= end;
135 while (position >= start && Character.isWhitespace(document.getChar(position)))
136 position--;
137
138 return position;
139 }
140
141 private final ICompilationUnit fCompilationUnit;
142 private final TextChange fChange;
143
144 public CodeFormatFix(TextChange change, ICompilationUnit compilationUnit) {
145 fChange= change;
146 fCompilationUnit= compilationUnit;
147 }
148
149
152 public TextChange createChange() throws CoreException {
153 return fChange;
154 }
155
156
159 public ICompilationUnit getCompilationUnit() {
160 return fCompilationUnit;
161 }
162
163
166 public String getDescription() {
167 return MultiFixMessages.CodeFormatFix_description;
168 }
169
170
173 public IStatus getStatus() {
174 return StatusInfo.OK_STATUS;
175 }
176
177 }
178 |
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