| /******************************************************************************* |
| * 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: |
| * Jesper Kamstrup Linnet (eclipse@kamstrup-linnet.dk) - initial API and implementation |
| * (report 36180: Callers/Callees view) |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.ui.callhierarchy; |
| |
| import java.util.Collection; |
| |
| import org.eclipse.swt.graphics.Image; |
| |
| import org.eclipse.jface.viewers.ILabelDecorator; |
| import org.eclipse.jface.viewers.StyledCellLabelProvider; |
| import org.eclipse.jface.viewers.StyledString; |
| import org.eclipse.jface.viewers.StyledString.Styler; |
| |
| import org.eclipse.ui.model.IWorkbenchAdapter; |
| |
| import org.eclipse.jdt.core.IMember; |
| import org.eclipse.jdt.core.IMethod; |
| import org.eclipse.jdt.core.IType; |
| import org.eclipse.jdt.core.JavaModelException; |
| |
| import org.eclipse.jdt.internal.corext.callhierarchy.CallLocation; |
| import org.eclipse.jdt.internal.corext.callhierarchy.MethodWrapper; |
| import org.eclipse.jdt.internal.corext.callhierarchy.RealCallers; |
| import org.eclipse.jdt.internal.corext.util.Messages; |
| |
| import org.eclipse.jdt.ui.JavaElementLabels; |
| |
| import org.eclipse.jdt.internal.ui.viewsupport.AppearanceAwareLabelProvider; |
| import org.eclipse.jdt.internal.ui.viewsupport.ColoringLabelProvider; |
| import org.eclipse.jdt.internal.ui.viewsupport.JavaElementImageProvider; |
| |
| |
| class CallHierarchyLabelProvider extends AppearanceAwareLabelProvider { |
| private static final long TEXTFLAGS= DEFAULT_TEXTFLAGS | JavaElementLabels.ALL_POST_QUALIFIED | JavaElementLabels.P_COMPRESSED; |
| |
| private static final int IMAGEFLAGS= DEFAULT_IMAGEFLAGS | JavaElementImageProvider.SMALL_ICONS; |
| |
| private ILabelDecorator fDecorator; |
| |
| CallHierarchyLabelProvider() { |
| super(TEXTFLAGS, IMAGEFLAGS); |
| fDecorator= new CallHierarchyLabelDecorator(); |
| } |
| |
| /* |
| * @see org.eclipse.jface.viewers.LabelProvider#getImage(java.lang.Object) |
| */ |
| @Override |
| public Image getImage(Object element) { |
| if (element instanceof MethodWrapper) { |
| MethodWrapper methodWrapper; |
| if (element instanceof RealCallers) { |
| methodWrapper= ((RealCallers)element).getParent(); |
| } else { |
| methodWrapper= (MethodWrapper)element; |
| } |
| |
| IMember member= methodWrapper.getMember(); |
| if (member != null) { |
| return fDecorator.decorateImage(super.getImage(member), methodWrapper); |
| } else { |
| return null; |
| } |
| } else if (isPendingUpdate(element)) { |
| return null; |
| } else { |
| return super.getImage(element); |
| } |
| } |
| |
| /* |
| * @see ILabelProvider#getText(Object) |
| */ |
| @Override |
| public String getText(Object element) { |
| if (isNormalMethodWrapper(element)) { |
| MethodWrapper wrapper= (MethodWrapper)element; |
| String decorated= getElementLabel(wrapper); |
| |
| if (isSpecialConstructorNode(wrapper)) { |
| decorated= Messages.format(CallHierarchyMessages.CallHierarchyLabelProvider_constructor_label, decorated); |
| } |
| return decorated; |
| } |
| return getSpecialLabel(element); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jdt.internal.ui.viewsupport.JavaUILabelProvider#getStyledText(java.lang.Object) |
| */ |
| @Override |
| public StyledString getStyledText(Object element) { |
| if (isNormalMethodWrapper(element)) { |
| MethodWrapper wrapper= (MethodWrapper)element; |
| String decorated= getElementLabel(wrapper); |
| |
| StyledString styledLabel= super.getStyledText(wrapper.getMember()); |
| StyledString styledDecorated= StyledCellLabelProvider.styleDecoratedString(decorated, StyledString.COUNTER_STYLER, styledLabel); |
| if (isSpecialConstructorNode(wrapper)) { |
| decorated= Messages.format(CallHierarchyMessages.CallHierarchyLabelProvider_constructor_label, decorated); |
| styledDecorated= StyledCellLabelProvider.styleDecoratedString(decorated, ColoringLabelProvider.INHERITED_STYLER, styledDecorated); |
| } |
| return styledDecorated; |
| } |
| |
| String specialLabel= getSpecialLabel(element); |
| Styler styler= element instanceof RealCallers ? ColoringLabelProvider.INHERITED_STYLER : null; |
| return new StyledString(specialLabel, styler); |
| } |
| |
| |
| private boolean isNormalMethodWrapper(Object element) { |
| return element instanceof MethodWrapper && ((MethodWrapper)element).getMember() != null && !(element instanceof RealCallers); |
| } |
| |
| private boolean isSpecialConstructorNode(MethodWrapper wrapper) { |
| MethodWrapper parentWrapper= wrapper.getParent(); |
| if (!CallHierarchyContentProvider.isExpandWithConstructors(parentWrapper)) |
| return false; |
| |
| IMember member= wrapper.getMember(); |
| if (member instanceof IType) |
| return true; |
| |
| try { |
| return member instanceof IMethod && ((IMethod)member).isConstructor(); |
| } catch (JavaModelException e) { |
| return false; // assume it's not a constructor |
| } |
| } |
| |
| private String getSpecialLabel(Object element) { |
| if (element instanceof RealCallers) { |
| return CallHierarchyMessages.CallHierarchyLabelProvider_expandWithConstructorsAction_realCallers; |
| } else if (element instanceof MethodWrapper) { |
| return CallHierarchyMessages.CallHierarchyLabelProvider_root; |
| } else if (element == TreeTermination.SEARCH_CANCELED) { |
| return CallHierarchyMessages.CallHierarchyLabelProvider_searchCanceled; |
| } else if (isPendingUpdate(element)) { |
| return CallHierarchyMessages.CallHierarchyLabelProvider_updatePending; |
| } |
| return CallHierarchyMessages.CallHierarchyLabelProvider_noMethodSelected; |
| } |
| |
| private boolean isPendingUpdate(Object element) { |
| return element instanceof IWorkbenchAdapter; |
| } |
| |
| private String getElementLabel(MethodWrapper methodWrapper) { |
| String label= super.getText(methodWrapper.getMember()); |
| |
| Collection<CallLocation> callLocations= methodWrapper.getMethodCall().getCallLocations(); |
| |
| if ((callLocations != null) && (callLocations.size() > 1)) { |
| return Messages.format(CallHierarchyMessages.CallHierarchyLabelProvider_matches, new String[] { label, String.valueOf(callLocations.size()) }); |
| } |
| |
| return label; |
| } |
| } |