| /******************************************************************************* |
| * Copyright (c) 2000, 2011 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.ui.typehierarchy; |
| |
| import org.eclipse.swt.graphics.Color; |
| |
| import org.eclipse.jface.resource.JFaceResources; |
| import org.eclipse.jface.util.IPropertyChangeListener; |
| import org.eclipse.jface.util.PropertyChangeEvent; |
| import org.eclipse.jface.viewers.LabelProviderChangedEvent; |
| import org.eclipse.jface.viewers.StyledString; |
| |
| import org.eclipse.jdt.core.IJavaElement; |
| import org.eclipse.jdt.core.IMember; |
| import org.eclipse.jdt.core.IMethod; |
| import org.eclipse.jdt.core.IType; |
| import org.eclipse.jdt.core.ITypeHierarchy; |
| import org.eclipse.jdt.core.JavaModelException; |
| |
| import org.eclipse.jdt.internal.corext.util.MethodOverrideTester; |
| |
| import org.eclipse.jdt.ui.JavaElementLabels; |
| |
| import org.eclipse.jdt.internal.ui.viewsupport.AppearanceAwareLabelProvider; |
| import org.eclipse.jdt.internal.ui.viewsupport.ColoredViewersManager; |
| |
| /** |
| * Label provider for the hierarchy method viewers. |
| */ |
| public class MethodsLabelProvider extends AppearanceAwareLabelProvider { |
| |
| private boolean fShowDefiningType; |
| private TypeHierarchyLifeCycle fHierarchy; |
| private MethodsViewer fMethodsViewer; |
| private IPropertyChangeListener fColorRegistryListener; |
| |
| public MethodsLabelProvider(TypeHierarchyLifeCycle lifeCycle, MethodsViewer methodsViewer) { |
| super(DEFAULT_TEXTFLAGS | JavaElementLabels.P_COMPRESSED, DEFAULT_IMAGEFLAGS); |
| fHierarchy= lifeCycle; |
| fShowDefiningType= false; |
| fMethodsViewer= methodsViewer; |
| fColorRegistryListener= new IPropertyChangeListener() { |
| public void propertyChange(PropertyChangeEvent event) { |
| if (event.getProperty().equals(ColoredViewersManager.INHERITED_COLOR_NAME)) { |
| fireLabelProviderChanged(new LabelProviderChangedEvent(MethodsLabelProvider.this, null)); |
| } |
| } |
| }; |
| JFaceResources.getColorRegistry().addListener(fColorRegistryListener); |
| } |
| |
| public void setShowDefiningType(boolean showDefiningType) { |
| fShowDefiningType= showDefiningType; |
| } |
| |
| public boolean isShowDefiningType() { |
| return fShowDefiningType; |
| } |
| |
| |
| private IType getDefiningType(Object element) throws JavaModelException { |
| int kind= ((IJavaElement) element).getElementType(); |
| |
| if (kind != IJavaElement.METHOD && kind != IJavaElement.FIELD && kind != IJavaElement.INITIALIZER) { |
| return null; |
| } |
| IType declaringType= ((IMember) element).getDeclaringType(); |
| if (kind != IJavaElement.METHOD) { |
| return declaringType; |
| } |
| ITypeHierarchy hierarchy= fHierarchy.getHierarchy(); |
| if (hierarchy == null) { |
| return declaringType; |
| } |
| IMethod method= (IMethod) element; |
| MethodOverrideTester tester= new MethodOverrideTester(declaringType, hierarchy); |
| IMethod res= tester.findDeclaringMethod(method, true); |
| if (res == null || method.equals(res)) { |
| return declaringType; |
| } |
| return res.getDeclaringType(); |
| } |
| |
| /* (non-Javadoc) |
| * @see ILabelProvider#getText |
| */ |
| @Override |
| public String getText(Object element) { |
| String text= super.getText(element); |
| String qualifier= getQualifier(element); |
| if (qualifier != null) { |
| return qualifier + text; |
| } |
| return text; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jdt.internal.ui.viewsupport.JavaUILabelProvider#getStyledText(java.lang.Object) |
| */ |
| @Override |
| public StyledString getStyledText(Object element) { |
| StyledString text= super.getStyledText(element); |
| String qualifier= getQualifier(element); |
| if (qualifier != null) { |
| StyledString styledString= new StyledString(qualifier); |
| styledString.append(text); |
| return styledString; |
| } |
| return text; |
| |
| } |
| |
| private String getQualifier(Object element) { |
| if (fShowDefiningType) { |
| try { |
| IType type= getDefiningType(element); |
| if (type != null) { |
| return super.getText(type) + JavaElementLabels.CONCAT_STRING; |
| } |
| } catch (JavaModelException e) { |
| } |
| } |
| return null; |
| } |
| |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.viewers.IColorProvider#getForeground(java.lang.Object) |
| */ |
| @Override |
| public Color getForeground(Object element) { |
| if (fMethodsViewer.isShowInheritedMethods() && element instanceof IMethod) { |
| IMethod curr= (IMethod) element; |
| IMember declaringType= curr.getDeclaringType(); |
| |
| if (!declaringType.equals(fMethodsViewer.getInput())) { |
| return JFaceResources.getColorRegistry().get(ColoredViewersManager.INHERITED_COLOR_NAME); |
| } |
| } |
| return null; |
| } |
| |
| @Override |
| public void dispose() { |
| JFaceResources.getColorRegistry().removeListener(fColorRegistryListener); |
| fColorRegistryListener= null; |
| super.dispose(); |
| } |
| |
| } |