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1
11 package org.eclipse.ltk.internal.ui.refactoring;
12
13 import java.util.List  ;
14
15 import org.eclipse.core.runtime.Assert;
16 import org.eclipse.core.runtime.CoreException;
17
18 import org.eclipse.ltk.core.refactoring.GroupCategorySet;
19 import org.eclipse.ltk.core.refactoring.TextEditBasedChange;
20 import org.eclipse.ltk.core.refactoring.TextEditBasedChangeGroup;
21 import org.eclipse.ltk.core.refactoring.Change;
22
23 import org.eclipse.ltk.ui.refactoring.ChangePreviewViewerInput;
24 import org.eclipse.ltk.ui.refactoring.IChangePreviewViewer;
25 import org.eclipse.ltk.ui.refactoring.TextEditChangeNode;
26
27 import org.eclipse.jface.resource.ImageDescriptor;
28 import org.eclipse.jface.text.IRegion;
29
30 public final class TextEditGroupNode extends TextEditChangeNode.ChildNode {
31
32 private TextEditBasedChangeGroup fChangeGroup;
33
34 public TextEditGroupNode(PreviewNode parent, TextEditBasedChangeGroup changeGroup) {
35 super(parent);
36 fChangeGroup= changeGroup;
37 Assert.isNotNull(fChangeGroup);
38 }
39
40
45 TextEditBasedChangeGroup getChangeGroup() {
46 return fChangeGroup;
47 }
48
49 public String getText() {
50 return fChangeGroup.getName();
51 }
52
53 public ImageDescriptor getImageDescriptor() {
54 return RefactoringPluginImages.DESC_OBJS_TEXT_EDIT;
55 }
56
57 ChangePreviewViewerDescriptor getChangePreviewViewerDescriptor() throws CoreException {
58 InternalTextEditChangeNode element= getTextEditChangeNode();
59 if (element == null)
60 return null;
61 return element.getChangePreviewViewerDescriptor();
62 }
63
64 void feedInput(IChangePreviewViewer viewer, List categories) throws CoreException {
65 InternalTextEditChangeNode element= getTextEditChangeNode();
66 if (element != null) {
67 Change change= element.getChange();
68 if (change instanceof TextEditBasedChange) {
69 IRegion range= getTextRange(this);
70 ChangePreviewViewerInput input= null;
71 if (range != null) {
72 input= TextEditChangePreviewViewer.createInput(change, new TextEditBasedChangeGroup[] {fChangeGroup}, range);
73 } else {
74 input= TextEditChangePreviewViewer.createInput(change, fChangeGroup, 2);
75 }
76 viewer.setInput(input);
77 }
78 } else {
79 viewer.setInput(null);
80 }
81 }
82
83 void setEnabled(boolean enabled) {
84 fChangeGroup.setEnabled(enabled);
85 }
86
87 void setEnabledShallow(boolean enabled) {
88 fChangeGroup.setEnabled(enabled);
89 }
90
91 int getActive() {
92 return fChangeGroup.isEnabled() ? PreviewNode.ACTIVE : PreviewNode.INACTIVE;
93 }
94
95 PreviewNode[] getChildren() {
96 return PreviewNode.EMPTY_CHILDREN;
97 }
98
99 boolean hasOneGroupCategory(List categories) {
100 return fChangeGroup.getGroupCategorySet().containsOneCategory(categories);
101 }
102
103 boolean hasDerived() {
104 return false;
105 }
106
107 GroupCategorySet getGroupCategorySet() {
108 return fChangeGroup.getGroupCategorySet();
109 }
110
111 private static IRegion getTextRange(PreviewNode element) throws CoreException {
112 if (element == null)
113 return null;
114 if (element instanceof InternalLanguageElementNode) {
115 return ((InternalLanguageElementNode)element).getTextRange();
116 } else if (element instanceof TextEditChangeNode) {
117 return null;
118 }
119 return getTextRange(element.getParent());
120 }
121 }
122 |
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