| /******************************************************************************* |
| * 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.jface.viewers.IStructuredContentProvider; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.ant.internal.ui.views.elements.TargetNode; |
| |
| /** |
| * Content provider which provides a list of ant targets chosen by the user |
| */ |
| public class AntTargetContentProvider implements IStructuredContentProvider { |
| |
| /** |
| * The collection of currently active targets |
| */ |
| private List targets = new ArrayList(); |
| |
| /** |
| * @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object) |
| */ |
| public Object[] getElements(Object inputElement) { |
| return targets.toArray(); |
| } |
| |
| /** |
| * @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) { |
| } |
| |
| /** |
| * Returns the user's currently selected targets. The list contains |
| * <code>TargetNode</code> objects. |
| * |
| * @return List the user's currently selected targets |
| */ |
| public List getTargets() { |
| return targets; |
| } |
| |
| /** |
| * Adds the given target to the list of selected targets. Targets will |
| * appear in the list as often as they are added. |
| * |
| * @param target the target to add |
| */ |
| public void addTarget(TargetNode target) { |
| targets.add(target); |
| } |
| |
| /** |
| * Removes the given target from the list of selected targets. Has no effect |
| * if the given index is invalid. |
| * |
| * @param index the index of the the target to remove |
| */ |
| public void removeTarget(int index) { |
| if (targets.size() > index && index >= 0) { |
| targets.remove(index); |
| } |
| } |
| |
| /** |
| * Moves the given target up in the list of active targets. Has no effect if |
| * the given target is already the first target in the list or the given |
| * index is invalid. |
| * |
| * @param index the index of the target to move up |
| */ |
| public void moveUpTarget(int index) { |
| Object target= targets.get(index); |
| if (index == 0 || target == null) { |
| return; |
| } |
| targets.set(index, targets.get(index - 1)); |
| targets.set(index - 1, target); |
| } |
| |
| /** |
| * Moves the given target down in the list of active targets. Has no effect |
| * if the given target is already the last target in the list or the given |
| * index is invalid. |
| * |
| * @param index the index of the target to move down |
| */ |
| public void moveDownTarget(int index) { |
| Object target= targets.get(index); |
| if (index == targets.size() - 1 || target == null) { |
| return; |
| } |
| targets.set(index, targets.get(index + 1)); |
| targets.set(index + 1, target); |
| } |
| |
| } |