+ * This class may be instantiated; it is not intended to be subclassed. + *
+ * + * @since 2.0 + */ +public class OverrideIndicatorLabelDecorator implements ILabelDecorator, + ILightweightLabelDecorator { + + private ImageDescriptorRegistry fRegistry; + + private boolean fUseNewRegistry = false; + + /** + * Creates a decorator. The decorator creates an own image registry to cache + * images. + */ +// public OverrideIndicatorLabelDecorator() { +// this(null); +// fUseNewRegistry = true; +// } + + /* + * Creates decorator with a shared image registry. + * + * @param registry The registry to use ornull to use the
+ * Java plugin's image registry.
+ */
+ /**
+ * Note: This constructor is for internal use only. Clients should not call
+ * this constructor.
+ */
+ public OverrideIndicatorLabelDecorator(ImageDescriptorRegistry registry) {
+ fRegistry = registry;
+ }
+
+ private ImageDescriptorRegistry getRegistry() {
+ if (fRegistry == null) {
+ fRegistry = fUseNewRegistry ? new ImageDescriptorRegistry()
+ : PHPeclipsePlugin.getImageDescriptorRegistry();
+ }
+ return fRegistry;
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see ILabelDecorator#decorateText(String, Object)
+ */
+ public String decorateText(String text, Object element) {
+ return text;
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see ILabelDecorator#decorateImage(Image, Object)
+ */
+ public Image decorateImage(Image image, Object element) {
+ int adornmentFlags = computeAdornmentFlags(element);
+ if (adornmentFlags != 0) {
+ ImageDescriptor baseImage = new ImageImageDescriptor(image);
+ Rectangle bounds = image.getBounds();
+ return getRegistry().get(
+ new JavaElementImageDescriptor(baseImage, adornmentFlags,
+ new Point(bounds.width, bounds.height)));
+ }
+ return image;
+ }
+
+ /**
+ * Note: This method is for internal use only. Clients should not call this
+ * method.
+ */
+ public int computeAdornmentFlags(Object element) {
+ if (element instanceof IMethod) {
+ if (!PreferenceConstants.getPreferenceStore().getBoolean(
+ PreferenceConstants.APPEARANCE_OVERRIDE_INDICATOR)) {
+ return 0;
+ }
+
+ try {
+ IMethod method = (IMethod) element;
+ // if (!method.getJavaProject().isOnClasspath(method)) {
+ // return 0;
+ // }
+
+ int flags = method.getFlags();
+ IType type = method.getDeclaringType();// jsurfer INSERT
+ if (type != null && type.isClass() && !method.isConstructor()
+ && !Flags.isPrivate(flags) && !Flags.isStatic(flags)) {
+ return getOverrideIndicators(method);
+ }
+ } catch (JavaModelException e) {
+ if (!e.isDoesNotExist()) {
+ PHPeclipsePlugin.log(e);
+ }
+ }
+ }
+ return 0;
+ }
+
+ /**
+ * Note: This method is for internal use only. Clients should not call this
+ * method.
+ */
+ protected int getOverrideIndicators(IMethod method)
+ throws JavaModelException {
+ //IType type = method.getDeclaringType();
+ // ITypeHierarchy hierarchy=
+ // SuperTypeHierarchyCache.getTypeHierarchy(type);
+ // if (hierarchy != null) {
+ // return findInHierarchy(type, hierarchy, method.getElementName(),
+ // method.getParameterTypes());
+ // }
+ return 0;
+ }
+
+ /**
+ * Note: This method is for internal use only. Clients should not call this
+ * method.
+ */
+ // protected int findInHierarchy(IType type, ITypeHierarchy hierarchy,
+ // String name, String[] paramTypes) throws JavaModelException {
+ // IMethod impl= JavaModelUtil.findMethodDeclarationInHierarchy(hierarchy,
+ // type, name, paramTypes, false);
+ // if (impl != null) {
+ // IMethod overridden=
+ // JavaModelUtil.findMethodImplementationInHierarchy(hierarchy, type, name,
+ // paramTypes, false);
+ // if (overridden != null) {
+ // return JavaElementImageDescriptor.OVERRIDES;
+ // } else {
+ // return JavaElementImageDescriptor.IMPLEMENTS;
+ // }
+ // }
+ // return 0;
+ // }
+ /*
+ * (non-Javadoc)
+ *
+ * @see IBaseLabelProvider#addListener(ILabelProviderListener)
+ */
+ public void addListener(ILabelProviderListener listener) {
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see IBaseLabelProvider#dispose()
+ */
+ public void dispose() {
+ if (fRegistry != null && fUseNewRegistry) {
+ fRegistry.dispose();
+ }
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see IBaseLabelProvider#isLabelProperty(Object, String)
+ */
+ public boolean isLabelProperty(Object element, String property) {
+ return true;
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see IBaseLabelProvider#removeListener(ILabelProviderListener)
+ */
+ public void removeListener(ILabelProviderListener listener) {
+ }
+
+ /*
+ * (non-Javadoc)
+ *
+ * @see org.eclipse.jface.viewers.ILightweightLabelDecorator#decorate(java.lang.Object,
+ * org.eclipse.jface.viewers.IDecoration)
+ */
+ public void decorate(Object element, IDecoration decoration) {
+ int adornmentFlags = computeAdornmentFlags(element);
+ if (adornmentFlags != 0) {
+ decoration.addOverlay(PHPUiImages.DESC_OVR_OVERRIDES);
+ }
+ }
+
+}