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1
11 package org.eclipse.jdt.internal.ui.navigator;
12
13 import org.eclipse.core.resources.IContainer;
14 import org.eclipse.core.resources.IResource;
15
16 import org.eclipse.swt.graphics.Color;
17 import org.eclipse.swt.graphics.Image;
18
19 import org.eclipse.jface.util.IPropertyChangeListener;
20 import org.eclipse.jface.util.PropertyChangeEvent;
21 import org.eclipse.jface.viewers.ILabelDecorator;
22 import org.eclipse.jface.viewers.ILabelProviderListener;
23
24 import org.eclipse.ui.IMemento;
25 import org.eclipse.ui.navigator.ICommonContentExtensionSite;
26 import org.eclipse.ui.navigator.ICommonLabelProvider;
27 import org.eclipse.ui.navigator.IExtensionStateModel;
28
29 import org.eclipse.jdt.core.IJavaElement;
30
31 import org.eclipse.jdt.ui.JavaElementLabels;
32
33 import org.eclipse.jdt.internal.ui.navigator.IExtensionStateConstants.Values;
34 import org.eclipse.jdt.internal.ui.packageview.PackageExplorerContentProvider;
35 import org.eclipse.jdt.internal.ui.packageview.PackageExplorerLabelProvider;
36
37
46 public class JavaNavigatorLabelProvider implements ICommonLabelProvider {
47
48 private final long LABEL_FLAGS = JavaElementLabels.DEFAULT_QUALIFIED
49 | JavaElementLabels.ROOT_POST_QUALIFIED
50 | JavaElementLabels.APPEND_ROOT_PATH
51 | JavaElementLabels.M_PARAMETER_TYPES
52 | JavaElementLabels.M_PARAMETER_NAMES
53 | JavaElementLabels.M_APP_RETURNTYPE
54 | JavaElementLabels.M_EXCEPTIONS
55 | JavaElementLabels.F_APP_TYPE_SIGNATURE
56 | JavaElementLabels.T_TYPE_PARAMETERS;
57
58 private PackageExplorerLabelProvider delegeteLabelProvider;
59
60 private PackageExplorerContentProvider fContentProvider;
61
62 private IExtensionStateModel fStateModel;
63
64 private IPropertyChangeListener fLayoutPropertyListener;
65
66 public JavaNavigatorLabelProvider() {
67
68 }
69 public void init(ICommonContentExtensionSite commonContentExtensionSite) {
70 fStateModel = commonContentExtensionSite.getExtensionStateModel();
71 fContentProvider = (PackageExplorerContentProvider) commonContentExtensionSite.getExtension().getContentProvider();
72 delegeteLabelProvider = createLabelProvider();
73
74 delegeteLabelProvider.setIsFlatLayout(fStateModel
75 .getBooleanProperty(Values.IS_LAYOUT_FLAT));
76 fLayoutPropertyListener = new IPropertyChangeListener() {
77 public void propertyChange(PropertyChangeEvent event) {
78 if (Values.IS_LAYOUT_FLAT.equals(event.getProperty())) {
79 if (event.getNewValue() != null) {
80 boolean newValue = ((Boolean  ) event.getNewValue())
81 .booleanValue() ? true : false;
82 delegeteLabelProvider.setIsFlatLayout(newValue);
83 }
84 }
85
86 }
87 };
88 fStateModel.addPropertyChangeListener(fLayoutPropertyListener);
89 }
90
91 public String getDescription(Object element) {
92 return formatMessage(element);
93 }
94
95 private PackageExplorerLabelProvider createLabelProvider() {
96 return new PackageExplorerLabelProvider(fContentProvider);
97 }
98
99 public void dispose() {
100 delegeteLabelProvider.dispose();
101 fStateModel.removePropertyChangeListener(fLayoutPropertyListener);
102 }
103
104 public void propertyChange(PropertyChangeEvent event) {
105 delegeteLabelProvider.propertyChange(event);
106 }
107
108 public void addLabelDecorator(ILabelDecorator decorator) {
109 delegeteLabelProvider.addLabelDecorator(decorator);
110 }
111
112 public void addListener(ILabelProviderListener listener) {
113 delegeteLabelProvider.addListener(listener);
114 }
115
116 public Color getBackground(Object element) {
117 return delegeteLabelProvider.getBackground(element);
118 }
119
120 public Color getForeground(Object element) {
121 return delegeteLabelProvider.getForeground(element);
122 }
123
124 public Image getImage(Object element) {
125 return delegeteLabelProvider.getImage(element);
126 }
127
128 public boolean isLabelProperty(Object element, String property) {
129 return delegeteLabelProvider.isLabelProperty(element, property);
130 }
131
132 public void removeListener(ILabelProviderListener listener) {
133 delegeteLabelProvider.removeListener(listener);
134 }
135
136 public boolean equals(Object obj) {
137 return delegeteLabelProvider.equals(obj);
138 }
139
140 public int hashCode() {
141 return delegeteLabelProvider.hashCode();
142 }
143
144 public String toString() {
145 return delegeteLabelProvider.toString();
146 }
147
148 public String getText(Object element) {
149 return delegeteLabelProvider.getText(element);
150 }
151
152 public void setIsFlatLayout(boolean state) {
153 delegeteLabelProvider.setIsFlatLayout(state);
154 }
155
156
158 private String formatMessage(Object element) {
159 if (element instanceof IJavaElement) {
160 return formatJavaElementMessage((IJavaElement) element);
161 } else if (element instanceof IResource) {
162 return formatResourceMessage((IResource) element);
163 }
164 return ""; }
166
167 private String formatJavaElementMessage(IJavaElement element) {
168 return JavaElementLabels.getElementLabel(element, LABEL_FLAGS);
169 }
170
171 private String formatResourceMessage(IResource element) {
172 IContainer parent = element.getParent();
173 if (parent != null && parent.getType() != IResource.ROOT)
174 return element.getName() + JavaElementLabels.CONCAT_STRING
175 + parent.getFullPath().makeRelative().toString();
176 else
177 return element.getName();
178 }
179
180 public void restoreState(IMemento memento) {
181
182 }
183
184 public void saveState(IMemento memento) {
185
186 }
187
188 }
189 |
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