| /******************************************************************************* |
| * Copyright (c) 2000, 2003 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.ant.internal.ui.views; |
| |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.eclipse.ant.internal.ui.views.elements.AntNode; |
| import org.eclipse.ant.internal.ui.views.elements.ProjectNode; |
| import org.eclipse.ant.internal.ui.views.elements.RootNode; |
| import org.eclipse.ant.internal.ui.views.elements.TargetNode; |
| import org.eclipse.jface.viewers.ITreeContentProvider; |
| import org.eclipse.jface.viewers.Viewer; |
| |
| /** |
| * Content provider that provides a tree of ant projects. |
| */ |
| public class AntProjectContentProvider implements ITreeContentProvider { |
| |
| /** |
| * The root node of the project tree |
| */ |
| private RootNode rootNode; |
| private boolean fIsFilteringInternalTargets= false; |
| |
| /** |
| * @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object) |
| */ |
| public Object[] getElements(Object inputElement) { |
| return getChildren(inputElement); |
| } |
| |
| /** |
| * @see org.eclipse.jface.viewers.IContentProvider#dispose() |
| */ |
| public void dispose() { |
| } |
| |
| /** |
| * @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object) |
| */ |
| public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { |
| if (newInput instanceof RootNode) { |
| rootNode= (RootNode) newInput; |
| } |
| } |
| |
| /** |
| * Adds the project to the tree. Has no effect if a project with the same buildfile name |
| * is already present in the tree. |
| * |
| * @param project The project to add |
| */ |
| public void addProject(ProjectNode project) { |
| ProjectNode[] projects= getRootNode().getProjects(); |
| for (int i = 0; i < projects.length; i++) { |
| ProjectNode node = projects[i]; |
| if (node.getBuildFileName().equals(project.getBuildFileName())) { |
| return; |
| } |
| } |
| getRootNode().addProject(project); |
| } |
| |
| /** |
| * Returns the root node of the tree or <code>null</code> if no root has |
| * been set as the input |
| * |
| * @return RootNode the root node of the tree |
| */ |
| public RootNode getRootNode() { |
| return rootNode; |
| } |
| |
| /** |
| * @see org.eclipse.jface.viewers.ITreeContentProvider#getChildren(Object) |
| */ |
| public Object[] getChildren(Object element) { |
| if (element instanceof RootNode) { |
| return ((RootNode) element).getProjects(); |
| } else if (element instanceof ProjectNode) { |
| if (!fIsFilteringInternalTargets) { |
| return ((ProjectNode) element).getTargets(); |
| } |
| TargetNode[] targets= ((ProjectNode) element).getTargets(); |
| List filteredTargets= new ArrayList(); |
| for (int i = 0; i < targets.length; i++) { |
| TargetNode node = targets[i]; |
| if (!isInternal(node)) { |
| filteredTargets.add(node); |
| } |
| } |
| return filteredTargets.toArray(); |
| } |
| return null; |
| } |
| |
| /** |
| * Returns whether the given target is an internal target. Internal |
| * targets are targets which has no description. The default target |
| * is never considered internal. |
| * @param target the target to examine |
| * @return whether the given target is an internal target |
| */ |
| private boolean isInternal(TargetNode target) { |
| return target != target.getProject().getDefaultTarget() && target.getDescription() == null; |
| } |
| |
| /** |
| * @see org.eclipse.jface.viewers.ITreeContentProvider#getParent(Object) |
| */ |
| public Object getParent(Object element) { |
| if (element instanceof AntNode) { |
| return ((AntNode) element).getParent(); |
| } |
| return null; |
| } |
| |
| /** |
| * @see org.eclipse.jface.viewers.ITreeContentProvider#hasChildren(Object) |
| */ |
| public boolean hasChildren(Object element) { |
| if (element instanceof TargetNode) { |
| return false; |
| } |
| return true; |
| } |
| |
| public boolean isFilterInternalTargets() { |
| return fIsFilteringInternalTargets; |
| } |
| |
| /** |
| * @param filter |
| */ |
| public void setFilterInternalTargets(boolean filter) { |
| fIsFilteringInternalTargets= filter; |
| } |
| |
| } |