| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * Copyright (c) 1999, 2000 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, if |
| * any, must include the following acknowlegement: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowlegement may appear in the software itself, |
| * if and wherever such third-party acknowlegements normally appear. |
| * |
| * 4. The names "The Jakarta Project", "Ant", and "Apache Software |
| * Foundation" must not be used to endorse or promote products derived |
| * from this software without prior written permission. For written |
| * permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache" |
| * nor may "Apache" appear in their names without prior written |
| * permission of the Apache Group. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| */ |
| package org.apache.tools.ant.gui.modules.edit; |
| import org.apache.tools.ant.gui.core.*; |
| import org.apache.tools.ant.gui.event.*; |
| import org.apache.tools.ant.gui.acs.*; |
| import javax.swing.*; |
| import javax.swing.tree.*; |
| import javax.swing.event.*; |
| import java.awt.GridLayout; |
| import java.awt.Dimension; |
| import java.awt.event.MouseAdapter; |
| import java.awt.event.MouseEvent; |
| import java.util.EventObject; |
| import java.beans.PropertyChangeEvent; |
| |
| /** |
| * Module for navigating build file elemenets. |
| * |
| * @version $Revision$ |
| * @author Simeon Fitch |
| */ |
| public class ElementNavigator extends AntModule { |
| |
| /** Navigation via a tree widget. */ |
| private JTree _tree = null; |
| /** The selection model being used. */ |
| private ElementTreeSelectionModel _selections = null; |
| |
| /** |
| * Default ctor. |
| * |
| */ |
| public ElementNavigator() { |
| } |
| |
| /** |
| * Using the given AppContext, initialize the display. |
| * |
| * @param context Application context. |
| */ |
| public void contextualize(AppContext context) { |
| setContext(context); |
| context.getEventBus().addMember(EventBus.MONITORING, new Handler()); |
| |
| setLayout(new GridLayout(1,1)); |
| |
| _tree = new JTree(); |
| _tree.setModel(null); |
| _tree.setCellRenderer(new ElementTreeCellRenderer()); |
| _tree.addMouseListener(new PopupHandler()); |
| _tree.putClientProperty("JTree.lineStyle", "Angled"); |
| _tree.setShowsRootHandles(true); |
| JScrollPane scroller = new JScrollPane(_tree); |
| add(scroller); |
| |
| setPreferredSize(new Dimension(250, 100)); |
| setMinimumSize(new Dimension(200, 100)); |
| |
| } |
| |
| /** Class for handling project events. */ |
| private class Handler implements BusMember { |
| private final Filter _filter = new Filter(); |
| |
| /** |
| * Get the filter to that is used to determine if an event should |
| * to to the member. |
| * |
| * @return Filter to use. |
| */ |
| public BusFilter getBusFilter() { |
| return _filter; |
| } |
| |
| /** |
| * Called when an event is to be posed to the member. |
| * |
| * @param event Event to post. |
| * @return true if event should be propogated, false if |
| * it should be cancelled. |
| */ |
| public boolean eventPosted(EventObject event) { |
| ElementTreeModel model = (ElementTreeModel)_tree.getModel(); |
| // XXX This crap needs cleaning up. Type switching is lazy... |
| if(event instanceof PropertyChangeEvent) { |
| // The project node has changed. |
| model.fireNodeChanged((ACSElement)event.getSource()); |
| } |
| else if(event instanceof NewElementEvent && model != null) { |
| ACSElement element = ((NewElementEvent)event).getNewElement(); |
| model.fireNodeAdded(element); |
| TreePath path = new TreePath(model.getPathToRoot(element)); |
| _selections.setSelectionPath(path); |
| _tree.scrollPathToVisible(path); |
| } |
| else { |
| ACSProjectElement project = null; |
| if(event instanceof ProjectSelectedEvent) { |
| ProjectSelectedEvent e = (ProjectSelectedEvent) event; |
| project = e.getSelectedProject(); |
| } |
| |
| if(project == null) { |
| // The project has been closed. |
| // XXX this needs to be tested against |
| // different version of Swing... |
| _tree.setModel(null); |
| _tree.setSelectionModel(null); |
| // Send an empty selection event to notify others that |
| // nothing is selected. |
| ElementSelectionEvent.createEvent(getContext(), null); |
| } |
| else { |
| _tree.setModel(new ElementTreeModel(project)); |
| _selections = new ElementTreeSelectionModel(); |
| _selections.addTreeSelectionListener( |
| new SelectionForwarder()); |
| _tree.setSelectionModel(_selections); |
| } |
| } |
| return true; |
| } |
| } |
| |
| /** Forwards selection events to the event bus. */ |
| private class SelectionForwarder implements TreeSelectionListener { |
| public void valueChanged(TreeSelectionEvent e) { |
| getContext().getEventBus().postEvent( |
| ElementSelectionEvent.createEvent( |
| getContext(), _selections.getSelectedElements())); |
| } |
| } |
| |
| /** Class providing filtering for project events. */ |
| private static class Filter implements BusFilter { |
| /** |
| * Determines if the given event should be accepted. |
| * |
| * @param event Event to test. |
| * @return True if event should be given to BusMember, false otherwise. |
| */ |
| public boolean accept(EventObject event) { |
| return event instanceof ProjectSelectedEvent || |
| event instanceof ProjectClosedEvent || |
| event instanceof NewElementEvent || |
| event instanceof PropertyChangeEvent; |
| } |
| } |
| |
| /** Mouse listener for showing popup menu. */ |
| private class PopupHandler extends MouseAdapter { |
| private void handle(MouseEvent e) { |
| if(e.isPopupTrigger()) { |
| ActionManager mgr = getContext().getActions(); |
| JPopupMenu menu = mgr.createPopup( |
| getContext().getResources().getStringArray( |
| ElementNavigator.class, "popupActions")); |
| menu.show((JComponent)e.getSource(), e.getX(), e.getY()); |
| } |
| } |
| |
| public void mousePressed(MouseEvent e) { |
| handle(e); |
| } |
| public void mouseReleased(MouseEvent e) { |
| handle(e); |
| } |
| public void mouseClicked(MouseEvent e) { |
| handle(e); |
| } |
| } |
| } |
