/*
Copyright 2008-2010 Gephi
Authors : Mathieu Bastian <mathieu.bastian@gephi.org>
Website : http://www.gephi.org
This file is part of Gephi.
DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
Copyright 2011 Gephi Consortium. All rights reserved.
The contents of this file are subject to the terms of either the GNU
General Public License Version 3 only ("GPL") or the Common
Development and Distribution License("CDDL") (collectively, the
"License"). You may not use this file except in compliance with the
License. You can obtain a copy of the License at
http://gephi.org/about/legal/license-notice/
or /cddl-1.0.txt and /gpl-3.0.txt. See the License for the
specific language governing permissions and limitations under the
License. When distributing the software, include this License Header
Notice in each file and include the License files at
/cddl-1.0.txt and /gpl-3.0.txt. If applicable, add the following below the
License Header, with the fields enclosed by brackets [] replaced by
your own identifying information:
"Portions Copyrighted [year] [name of copyright owner]"
If you wish your version of this file to be governed by only the CDDL
or only the GPL Version 3, indicate your decision by adding
"[Contributor] elects to include this software in this distribution
under the [CDDL or GPL Version 3] license." If you do not indicate a
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your version of this file under either the CDDL, the GPL Version 3 or
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However, if you add GPL Version 3 code and therefore, elected the GPL
Version 3 license, then the option applies only if the new code is
made subject to such option by the copyright holder.
Contributor(s):
Portions Copyrighted 2011 Gephi Consortium.
*/
package org.gephi.visualization.events;
import java.lang.ref.WeakReference;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Comparator;
import java.util.Iterator;
import java.util.List;
import java.util.concurrent.LinkedBlockingDeque;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import org.gephi.graph.api.Node;
import org.gephi.graph.api.NodeData;
import org.gephi.visualization.VizController;
import org.gephi.visualization.apiimpl.GraphIO;
import org.gephi.visualization.apiimpl.ModelImpl;
import org.gephi.visualization.apiimpl.VizEvent;
import org.gephi.visualization.apiimpl.VizEventListener;
import org.gephi.visualization.apiimpl.VizEventManager;
import org.gephi.visualization.opengl.AbstractEngine;
/**
*
* @author Mathieu Bastian
*/
public class StandardVizEventManager implements VizEventManager {
//Architecture
private AbstractEngine engine;
private GraphIO graphIO;
//
private ThreadPoolExecutor pool;
private VizEventTypeHandler[] handlers;
public StandardVizEventManager() {
pool = new ThreadPoolExecutor(0, 1, 60L, TimeUnit.SECONDS, new LinkedBlockingDeque<Runnable>(10));
}
public void initArchitecture() {
engine = VizController.getInstance().getEngine();
graphIO = VizController.getInstance().getGraphIO();
//Set handlers
ArrayList<VizEventTypeHandler> handlersList = new ArrayList<VizEventTypeHandler>();
handlersList.add(new VizEventTypeHandler(VizEvent.Type.MOUSE_LEFT_CLICK, false));
handlersList.add(new VizEventTypeHandler(VizEvent.Type.MOUSE_LEFT_PRESS, false));
handlersList.add(new VizEventTypeHandler(VizEvent.Type.MOUSE_MIDDLE_CLICK, false));
handlersList.add(new VizEventTypeHandler(VizEvent.Type.MOUSE_MIDDLE_PRESS, false));
handlersList.add(new VizEventTypeHandler(VizEvent.Type.MOUSE_RIGHT_CLICK, false));
handlersList.add(new VizEventTypeHandler(VizEvent.Type.MOUSE_RIGHT_PRESS, false));
handlersList.add(new VizEventTypeHandler(VizEvent.Type.MOUSE_MOVE, true));
handlersList.add(new VizEventTypeHandler(VizEvent.Type.START_DRAG, false));
handlersList.add(new VizEventTypeHandler(VizEvent.Type.DRAG, true));
handlersList.add(new VizEventTypeHandler(VizEvent.Type.STOP_DRAG, false));
handlersList.add(new VizEventTypeHandler(VizEvent.Type.NODE_LEFT_CLICK, false));
handlersList.add(new VizEventTypeHandler(VizEvent.Type.MOUSE_LEFT_PRESSING, false));
handlersList.add(new VizEventTypeHandler(VizEvent.Type.MOUSE_RELEASED, false));
handlersList.add(new VizEventTypeHandler(VizEvent.Type.NODE_LEFT_PRESS, false));
handlersList.add(new VizEventTypeHandler(VizEvent.Type.NODE_LEFT_PRESSING, false));
Collections.sort(handlersList, new Comparator() {
public int compare(Object o1, Object o2) {
VizEvent.Type t1 = ((VizEventTypeHandler) o1).type;
VizEvent.Type t2 = ((VizEventTypeHandler) o2).type;
return t1.compareTo(t2);
}
});
handlers = handlersList.toArray(new VizEventTypeHandler[0]);
}
public void mouseLeftClick() {
//Node Left click
VizEventTypeHandler nodeLeftHandler = handlers[VizEvent.Type.NODE_LEFT_CLICK.ordinal()];
if (nodeLeftHandler.hasListeners() && VizController.getInstance().getVizConfig().isSelectionEnable()) {
//Check if some node are selected
ModelImpl[] modelArray = engine.getSelectedObjects(AbstractEngine.CLASS_NODE);
if (modelArray.length > 0) {
Node[] nodeArray = new Node[modelArray.length];
for (int i = 0; i < modelArray.length; i++) {
nodeArray[i] = ((NodeData) modelArray[i].getObj()).getRootNode();
}
nodeLeftHandler.dispatch(nodeArray);
}
}
//Mouse left click
VizEventTypeHandler mouseLeftHandler = handlers[VizEvent.Type.MOUSE_LEFT_CLICK.ordinal()];
if (mouseLeftHandler.hasListeners()) {
ModelImpl[] modelArray = engine.getSelectedObjects(AbstractEngine.CLASS_NODE);
if (modelArray.length == 0 || !VizController.getInstance().getVizConfig().isSelectionEnable()) {
float[] mousePositionViewport = graphIO.getMousePosition();
float[] mousePosition3d = graphIO.getMousePosition3d();
float[] mousePos = new float[]{mousePositionViewport[0], mousePositionViewport[1], mousePosition3d[0], mousePosition3d[1]};
handlers[VizEvent.Type.MOUSE_LEFT_CLICK.ordinal()].dispatch(mousePos);
}
}
}
public void mouseLeftPress() {
handlers[VizEvent.Type.MOUSE_LEFT_PRESS.ordinal()].dispatch();
pressingTick = PRESSING_FREQUENCY;
VizEventTypeHandler pressHandler = handlers[VizEvent.Type.NODE_LEFT_PRESS.ordinal()];
if (pressHandler.hasListeners()) {
//Check if some node are selected
ModelImpl[] modelArray = engine.getSelectedObjects(AbstractEngine.CLASS_NODE);
if (modelArray.length > 0) {
Node[] nodeArray = new Node[modelArray.length];
for (int i = 0; i < modelArray.length; i++) {
nodeArray[i] = ((NodeData) modelArray[i].getObj()).getRootNode();
}
pressHandler.dispatch(nodeArray);
}
}
}
public void mouseMiddleClick() {
handlers[VizEvent.Type.MOUSE_MIDDLE_CLICK.ordinal()].dispatch();
}
public void mouseMiddlePress() {
handlers[VizEvent.Type.MOUSE_LEFT_PRESS.ordinal()].dispatch();
}
public void mouseMove() {
handlers[VizEvent.Type.MOUSE_MOVE.ordinal()].dispatch();
}
public void mouseRightClick() {
handlers[VizEvent.Type.MOUSE_RIGHT_CLICK.ordinal()].dispatch();
}
public void mouseRightPress() {
handlers[VizEvent.Type.MOUSE_RIGHT_PRESS.ordinal()].dispatch();
}
private static final int PRESSING_FREQUENCY = 5;
private int pressingTick = 0;
public void mouseLeftPressing() {
if (pressingTick++ >= PRESSING_FREQUENCY) {
pressingTick = 0;
VizEventTypeHandler nodeHandler = handlers[VizEvent.Type.NODE_LEFT_PRESSING.ordinal()];
if (nodeHandler.hasListeners()) {
//Check if some node are selected
ModelImpl[] modelArray = engine.getSelectedObjects(AbstractEngine.CLASS_NODE);
if (modelArray.length > 0) {
Node[] nodeArray = new Node[modelArray.length];
for (int i = 0; i < modelArray.length; i++) {
nodeArray[i] = ((NodeData) modelArray[i].getObj()).getRootNode();
}
nodeHandler.dispatch(nodeArray);
}
}
}
}
public void startDrag() {
handlers[VizEvent.Type.START_DRAG.ordinal()].dispatch();
}
public void stopDrag() {
handlers[VizEvent.Type.STOP_DRAG.ordinal()].dispatch();
}
private static final int DRAGGING_FREQUENCY = 5;
private int draggingTick = 0;
public void drag() {
if (draggingTick++ >= DRAGGING_FREQUENCY) {
draggingTick = 0;
VizEventTypeHandler handler = handlers[VizEvent.Type.DRAG.ordinal()];
if (handler.hasListeners()) {
float[] mouseDrag = Arrays.copyOf(graphIO.getMouseDrag(), 4);
mouseDrag[2] = graphIO.getMouseDrag3d()[0];
mouseDrag[3] = graphIO.getMouseDrag3d()[1];
handler.dispatch(mouseDrag);
}
}
}
public void mouseReleased() {
handlers[VizEvent.Type.MOUSE_RELEASED.ordinal()].dispatch();
}
//Listeners
public boolean hasListeners(VizEvent.Type type) {
return handlers[type.ordinal()].hasListeners();
}
public void addListener(VizEventListener listener) {
handlers[listener.getType().ordinal()].addListener(listener);
}
public void removeListener(VizEventListener listener) {
handlers[listener.getType().ordinal()].removeListener(listener);
}
public void addListener(VizEventListener[] listeners) {
for (int i = 0; i < listeners.length; i++) {
handlers[listeners[i].getType().ordinal()].addListener(listeners[i]);
}
}
public void removeListener(VizEventListener[] listeners) {
for (int i = 0; i < listeners.length; i++) {
handlers[listeners[i].getType().ordinal()].removeListener(listeners[i]);
}
}
private class VizEventTypeHandler {
//Settings
private final boolean limitRunning;
//Data
protected List<WeakReference<VizEventListener>> listeners;
protected final VizEvent.Type type;
protected Runnable runnable;
//States
protected boolean running;
public VizEventTypeHandler(VizEvent.Type type, boolean limitRunning) {
this.limitRunning = limitRunning;
this.type = type;
this.listeners = new ArrayList<WeakReference<VizEventListener>>();
runnable = new Runnable() {
public void run() {
fireVizEvent(null);
running = false;
}
};
}
protected synchronized void addListener(VizEventListener listener) {
WeakReference<VizEventListener> weakListener = new WeakReference<VizEventListener>(listener);
listeners.add(weakListener);
}
protected synchronized void removeListener(VizEventListener listener) {
for (Iterator<WeakReference<VizEventListener>> itr = listeners.iterator(); itr.hasNext();) {
WeakReference<VizEventListener> li = itr.next();
if (li.get() == listener) {
itr.remove();
}
}
}
protected void dispatch() {
if (limitRunning && running) {
return;
}
if (listeners.size() > 0) {
running = true;
pool.submit(runnable);
}
}
protected void dispatch(final Object data) {
if (limitRunning && running) {
return;
}
if (listeners.size() > 0) {
running = true;
pool.submit(new Runnable() {
public void run() {
fireVizEvent(data);
running = false;
}
});
}
}
protected boolean isRunning() {
return running;
}
private synchronized void fireVizEvent(Object data) {
VizEvent event = new VizEvent(this, type, data);
for (int i = 0; i < listeners.size(); i++) {
WeakReference<VizEventListener> weakListener = listeners.get(i);
VizEventListener v = weakListener.get();
v.handleEvent(event);
}
}
public boolean hasListeners() {
return listeners.size() > 0;
}
protected int getIndex() {
return type.ordinal();
}
}
}