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1 | /******************************************************************************* |
2 | * Copyright (c) 2000, 2011 IBM Corporation and others. | |
3 | * All rights reserved. This program and the accompanying materials | |
4 | * are made available under the terms of the Eclipse Public License v1.0 | |
5 | * which accompanies this distribution, and is available at | |
6 | * http://www.eclipse.org/legal/epl-v10.html | |
7 | * | |
8 | * Contributors: | |
9 | * IBM Corporation - initial API and implementation | |
10 | *******************************************************************************/ | |
11 | package org.eclipse.jdt.internal.ui.search; | |
12 | ||
13 | import org.eclipse.swt.graphics.Image; | |
14 | ||
15 | import org.eclipse.jface.viewers.ITreeContentProvider; | |
16 | import org.eclipse.jface.viewers.StyledString; | |
17 | ||
18 | import org.eclipse.jdt.core.IClassFile; | |
19 | import org.eclipse.jdt.core.ICompilationUnit; | |
20 | import org.eclipse.jdt.core.IJavaModel; | |
21 | import org.eclipse.jdt.core.IType; | |
22 | ||
23 | import org.eclipse.jdt.ui.JavaElementLabels; | |
24 | ||
25 | ||
26 | public class PostfixLabelProvider extends SearchLabelProvider { | |
27 | private ITreeContentProvider fContentProvider; | |
28 | ||
29 | public PostfixLabelProvider(JavaSearchResultPage page) { | |
30 | super(page); | |
31 | fContentProvider= new LevelTreeContentProvider.FastJavaElementProvider(); | |
32 | } | |
33 | ||
34 | @Override | |
35 | public Image getImage(Object element) { | |
36 | Image image= super.getImage(element); | |
37 | if (image != null) | |
38 | return image; | |
39 | return getParticipantImage(element); | |
40 | } | |
41 | ||
42 | @Override | |
43 | public String getText(Object element) { | |
44 | String labelWithCounts= getLabelWithCounts(element, internalGetText(element)); | |
45 | return labelWithCounts + getQualification(element); | |
46 | } | |
47 | ||
48 | private String getQualification(Object element) { | |
49 | StringBuffer res= new StringBuffer(); | |
50 | ||
51 | ITreeContentProvider provider= (ITreeContentProvider) fPage.getViewer().getContentProvider(); | |
52 | Object visibleParent= provider.getParent(element); | |
53 | Object realParent= fContentProvider.getParent(element); | |
54 | Object lastElement= element; | |
55 | while (realParent != null && !(realParent instanceof IJavaModel) && !realParent.equals(visibleParent)) { | |
56 | if (!isSameInformation(realParent, lastElement)) { | |
57 | res.append(JavaElementLabels.CONCAT_STRING).append(internalGetText(realParent)); | |
58 | } | |
59 | lastElement= realParent; | |
60 | realParent= fContentProvider.getParent(realParent); | |
61 | } | |
62 | return res.toString(); | |
63 | } | |
64 | ||
65 | @Override | |
66 | protected boolean hasChildren(Object element) { | |
67 | ITreeContentProvider contentProvider= (ITreeContentProvider) fPage.getViewer().getContentProvider(); | |
68 | return contentProvider.hasChildren(element); | |
69 | } | |
70 | ||
71 | private String internalGetText(Object element) { | |
72 | String text= super.getText(element); | |
73 | if (text != null && text.length() > 0) | |
74 | return text; | |
75 | return getParticipantText(element); | |
76 | } | |
77 | ||
78 | private StyledString internalGetStyledText(Object element) { | |
79 | StyledString text= super.getStyledText(element); | |
80 | if (text != null && text.length() > 0) | |
81 | return text; | |
82 | return getStyledParticipantText(element); | |
83 | } | |
84 | ||
85 | private boolean isSameInformation(Object realParent, Object lastElement) { | |
86 | if (lastElement instanceof IType) { | |
87 | IType type= (IType) lastElement; | |
88 | if (realParent instanceof IClassFile) { | |
89 | if (type.getClassFile().equals(realParent)) | |
90 | return true; | |
91 | } else if (realParent instanceof ICompilationUnit) { | |
92 | if (type.getCompilationUnit().equals(realParent)) | |
93 | return true; | |
94 | } | |
95 | } | |
96 | return false; | |
97 | } | |
98 | ||
99 | /* (non-Javadoc) | |
100 | * @see org.eclipse.jdt.internal.ui.viewsupport.JavaUILabelProvider#getStyledText(java.lang.Object) | |
101 | */ | |
102 | @Override | |
103 | public StyledString getStyledText(Object element) { | |
104 | StyledString styledString= getColoredLabelWithCounts(element, internalGetStyledText(element)); | |
105 | styledString.append(getQualification(element), StyledString.QUALIFIER_STYLER); | |
106 | return styledString; | |
107 | } | |
108 | ||
109 | } |