Attachment 3029 Details for Bug 25274 – JavaWorkbenchAdapter implementing IContainmentAdapter

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JavaWorkbenchAdapter implementing IContainmentAdapter

JavaWorkbenchAdapter.java (text/plain), 3.78 KB, created by Knut Radloff

on 2003-01-17 11:13:09 EST

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Filename:

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Creator: Knut Radloff

Created: 2003-01-17 11:13:09 EST

Size: 3.78 KB

patch

obsolete

>/*
> * (c) Copyright IBM Corp. 2000, 2001.
> * All Rights Reserved.
> */
>package org.eclipse.jdt.internal.ui;
>
>
>import org.eclipse.core.resources.IResource;
>import org.eclipse.core.runtime.IAdaptable;
>import org.eclipse.core.runtime.IPath;
>import org.eclipse.jdt.core.*;
>import org.eclipse.jdt.internal.ui.viewsupport.JavaElementImageProvider;
>import org.eclipse.jdt.internal.ui.viewsupport.JavaElementLabels;
>import org.eclipse.jdt.ui.JavaElementLabelProvider;
>import org.eclipse.jface.resource.ImageDescriptor;
>import org.eclipse.ui.IContainmentAdapter;
>import org.eclipse.ui.model.IWorkbenchAdapter;
>
>/**
> * An imlementation of the IWorkbenchAdapter for IJavaElements.
> */
>public class JavaWorkbenchAdapter implements IWorkbenchAdapter, IContainmentAdapter {
>	
>	protected static final Object[] NO_CHILDREN= new Object[0];
>	
>	private JavaElementImageProvider fImageProvider;
>	private JavaElementLabelProvider fLabelProvider;
>
>	public JavaWorkbenchAdapter() {
>		fImageProvider= new JavaElementImageProvider();
>		fLabelProvider= new JavaElementLabelProvider();
>	}
>
>	/**
>	 * Implements IContainmentAdapter.
>	 * 
>	 * @see org.eclipse.ui.IContainmentAdapter#contains(Object, Object, boolean, boolean)
>	 */
>	public boolean contains(Object workingSetElement, Object element, boolean includeDescendents, boolean includeAncestors) {
>		if (workingSetElement instanceof IJavaElement == false)
>			return false;
>						
>		IJavaElement workingSetJavaElement = (IJavaElement) workingSetElement;
>		// test if the element is the working set element itself
>		if (workingSetJavaElement.getResource().equals(element)) 
>			return true;
>		
>		IResource elementResource = null;
>		if (element instanceof IResource)
>			elementResource = (IResource) element;
>		else if (element instanceof IAdaptable)
>			elementResource = (IResource) ((IAdaptable) element).getAdapter(IResource.class);			
>		if (elementResource == null) 
>			return false;
>			
>		if (includeAncestors) {			
>			IPath workingSetPath = workingSetJavaElement.getPath();			
>			if (elementResource.getFullPath().isPrefixOf(workingSetPath))
>				return true;
>		}
>		if (includeDescendents) {
>			// use Java specific tests to check descendents.
>			if (workingSetElement instanceof IJavaProject) {
>				IJavaProject workingSetProject = (IJavaProject) workingSetElement;
>				try {
>					if (workingSetProject.isOnClasspath(elementResource))
>						return true;
>				} catch (JavaModelException e) {
>				}
>			}
>			if (workingSetElement instanceof IPackageFragment) {
>				IPackageFragment workingSetPackage = (IPackageFragment) workingSetElement;
>
>				try {
>					IJavaElement[] children = workingSetPackage.getChildren();
>					for (int i = 0; i < children.length; i++) {
>						IResource childResource = children[i].getResource();
>						if (elementResource.equals(childResource))
>							return true;
>					}
>				} catch (JavaModelException e) {
>				}				
>			}			
>			if (workingSetElement instanceof IPackageFragmentRoot) {
>				IPath workingSetPath = ((IPackageFragmentRoot) workingSetElement).getPath();
>				if (workingSetPath.isPrefixOf(elementResource.getFullPath()))
>					return true;
>			}
>		}
>		return false;
>	}
>	
>	public Object[] getChildren(Object element) {
>		if (element instanceof IParent) {
>			try {
>				return ((IParent)element).getChildren();
>			} catch(JavaModelException e) {
>				JavaPlugin.log(e); 
>			}
>		}
>		return NO_CHILDREN;
>	}
>
>	public ImageDescriptor getImageDescriptor(Object element) {
>		return fImageProvider.getJavaImageDescriptor(
>			(IJavaElement)element, 
>			JavaElementImageProvider.OVERLAY_ICONS | JavaElementImageProvider.SMALL_ICONS);
>	}
>
>	public String getLabel(Object element) {
>		return JavaElementLabels.getTextLabel(element, JavaElementLabels.M_PARAMETER_TYPES);
>	}
>
>	public Object getParent(Object element) {
>		if (element instanceof IJavaElement)
>			return ((IJavaElement)element).getParent();
>		return null;
>	}
>}

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Attachments on bug 25274: 3028 | 3029