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1
12 package org.eclipse.jdt.internal.ui.callhierarchy;
13
14 import java.util.Collection  ;
15
16 import org.eclipse.swt.graphics.Image;
17
18 import org.eclipse.jface.viewers.ILabelDecorator;
19
20 import org.eclipse.ui.model.IWorkbenchAdapter;
21
22 import org.eclipse.jdt.internal.corext.callhierarchy.MethodWrapper;
23 import org.eclipse.jdt.internal.corext.util.Messages;
24
25 import org.eclipse.jdt.ui.JavaElementLabels;
26
27 import org.eclipse.jdt.internal.ui.viewsupport.AppearanceAwareLabelProvider;
28 import org.eclipse.jdt.internal.ui.viewsupport.ColoredJavaElementLabels;
29 import org.eclipse.jdt.internal.ui.viewsupport.ColoredString;
30 import org.eclipse.jdt.internal.ui.viewsupport.JavaElementImageProvider;
31
32 class CallHierarchyLabelProvider extends AppearanceAwareLabelProvider {
33 private static final long TEXTFLAGS= DEFAULT_TEXTFLAGS | JavaElementLabels.ALL_POST_QUALIFIED | JavaElementLabels.P_COMPRESSED;
34 private static final int IMAGEFLAGS= DEFAULT_IMAGEFLAGS | JavaElementImageProvider.SMALL_ICONS;
35
36 private ILabelDecorator fDecorator;
37
38 CallHierarchyLabelProvider() {
39 super(TEXTFLAGS, IMAGEFLAGS);
40 fDecorator= new CallHierarchyLabelDecorator();
41 }
42
45 public Image getImage(Object element) {
46 Image result= null;
47 if (element instanceof MethodWrapper) {
48 MethodWrapper methodWrapper = (MethodWrapper) element;
49
50 if (methodWrapper.getMember() != null) {
51 result= fDecorator.decorateImage(super.getImage(methodWrapper.getMember()), methodWrapper);
52 }
53 } else if (isPendingUpdate(element)) {
54 return null;
55 } else {
56 result= super.getImage(element);
57 }
58
59 return result;
60 }
61
62
65 public String getText(Object element) {
66 if (element instanceof MethodWrapper && ((MethodWrapper) element).getMember() != null) {
67 return getElementLabel((MethodWrapper) element);
68 }
69 return getSpecialLabel(element);
70 }
71
72
75 public ColoredString getRichTextLabel(Object element) {
76 if (element instanceof MethodWrapper && ((MethodWrapper) element).getMember() != null) {
77 MethodWrapper wrapper= (MethodWrapper) element;
78 String decorated= getElementLabel(wrapper);
79 ColoredString text= super.getRichTextLabel(wrapper.getMember());
80 return ColoredJavaElementLabels.decorateColoredString(text, decorated, ColoredJavaElementLabels.COUNTER_STYLE);
81 }
82 return new ColoredString(getSpecialLabel(element));
83 }
84
85 private String getSpecialLabel(Object element) {
86 if (element instanceof MethodWrapper) {
87 return CallHierarchyMessages.CallHierarchyLabelProvider_root;
88 } else if (element == TreeTermination.SEARCH_CANCELED) {
89 return CallHierarchyMessages.CallHierarchyLabelProvider_searchCanceled;
90 } else if (isPendingUpdate(element)) {
91 return CallHierarchyMessages.CallHierarchyLabelProvider_updatePending;
92 }
93 return CallHierarchyMessages.CallHierarchyLabelProvider_noMethodSelected;
94 }
95
96 private boolean isPendingUpdate(Object element) {
97 return element instanceof IWorkbenchAdapter;
98 }
99
100 private String getElementLabel(MethodWrapper methodWrapper) {
101 String label = super.getText(methodWrapper.getMember());
102
103 Collection callLocations = methodWrapper.getMethodCall().getCallLocations();
104
105 if ((callLocations != null) && (callLocations.size() > 1)) {
106 return Messages.format(CallHierarchyMessages.CallHierarchyLabelProvider_matches, new String []{label, String.valueOf(callLocations.size())});
107 }
108
109 return label;
110 }
111 }
112 |
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