/*
Copyright 2008-2011 Gephi
Authors : Mathieu Bastian
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
single choice of license, a recipient has the option to distribute
your version of this file under either the CDDL, the GPL Version 3 or
to extend the choice of license to its licensees as provided above.
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.preview;
import java.awt.Dimension;
import java.awt.Point;
import java.util.LinkedHashMap;
import org.gephi.data.attributes.api.AttributeController;
import org.gephi.data.attributes.api.AttributeModel;
import org.gephi.graph.api.*;
import org.gephi.preview.api.*;
import org.gephi.preview.spi.ItemBuilder;
import org.gephi.preview.spi.RenderTargetBuilder;
import org.gephi.preview.spi.Renderer;
import org.gephi.project.api.ProjectController;
import org.gephi.project.api.Workspace;
import org.gephi.project.api.WorkspaceListener;
import org.gephi.utils.progress.Progress;
import org.gephi.utils.progress.ProgressTicket;
import org.openide.util.Exceptions;
import org.openide.util.Lookup;
import org.openide.util.lookup.ServiceProvider;
/**
*
* @author Mathieu Bastian
*/
@ServiceProvider(service = PreviewController.class)
public class PreviewControllerImpl implements PreviewController {
private PreviewModelImpl model;
//Other controllers
private final GraphController graphController;
private final AttributeController attributeController;
//Registered renderers
private Renderer[] registeredRenderers = null;
private Boolean anyPluginRendererRegistered = null;
public PreviewControllerImpl() {
graphController = Lookup.getDefault().lookup(GraphController.class);
attributeController = Lookup.getDefault().lookup(AttributeController.class);
//Workspace events
ProjectController pc = Lookup.getDefault().lookup(ProjectController.class);
pc.addWorkspaceListener(new WorkspaceListener() {
@Override
public void initialize(Workspace workspace) {
}
@Override
public void select(Workspace workspace) {
model = workspace.getLookup().lookup(PreviewModelImpl.class);
if (model == null) {
model = new PreviewModelImpl(workspace);
workspace.add(model);
}
}
@Override
public void unselect(Workspace workspace) {
model = null;
}
@Override
public void close(Workspace workspace) {
}
@Override
public void disable() {
model = null;
}
});
if (pc.getCurrentWorkspace() != null) {
model = pc.getCurrentWorkspace().getLookup().lookup(PreviewModelImpl.class);
if (model == null) {
model = new PreviewModelImpl(pc.getCurrentWorkspace(), this);
pc.getCurrentWorkspace().add(model);
}
}
}
@Override
public void refreshPreview() {
refreshPreview(model.getWorkspace());
}
@Override
public synchronized void refreshPreview(Workspace workspace) {
GraphModel graphModel = graphController.getModel(workspace);
AttributeModel attributeModel = attributeController.getModel(model.getWorkspace());
PreviewModelImpl previewModel = getModel(workspace);
previewModel.clear();
//Directed graph?
previewModel.getProperties().putValue(PreviewProperty.DIRECTED, graphModel.isDirected() || graphModel.isMixed());
//Graph
Graph graph = graphModel.getGraphVisible();
if (previewModel.getProperties().getFloatValue(PreviewProperty.VISIBILITY_RATIO) < 1f) {
float visibilityRatio = previewModel.getProperties().getFloatValue(PreviewProperty.VISIBILITY_RATIO);
GraphView reducedView = graphModel.copyView(graph.getView());
graph = graphModel.getGraph(reducedView);
Node[] nodes = graph.getNodes().toArray();
for (int i = 0; i < nodes.length; i++) {
float r = (float) i / (float) nodes.length;
if (r > visibilityRatio) {
graph.removeNode(nodes[i]);
}
}
}
Renderer[] renderers = model.getManagedEnabledRenderers();
if (renderers == null) {
renderers = getRegisteredRenderers();
}
//Build items
for (ItemBuilder b : Lookup.getDefault().lookupAll(ItemBuilder.class)) {
//Only build items of this builder if some renderer needs it:
if (isItemBuilderNeeded(b, previewModel.getProperties(), renderers)) {
try {
Item[] items = b.getItems(graph, attributeModel);
if (items != null) {
previewModel.loadItems(b.getType(), items);
}
} catch (Exception e) {
Exceptions.printStackTrace(e);
}
}
}
//Destrow view
if (previewModel.getProperties().getFloatValue(PreviewProperty.VISIBILITY_RATIO) < 1f) {
graphModel.destroyView(graph.getView());
}
//Refresh dimensions
updateDimensions(previewModel, previewModel.getItems(Item.NODE));
//Pre process renderers
for (Renderer r : renderers) {
r.preProcess(model);
}
}
private boolean isItemBuilderNeeded(ItemBuilder itemBuilder, PreviewProperties properties, Renderer[] renderers) {
for (Renderer r : renderers) {
if (r.needsItemBuilder(itemBuilder, properties)) {
return true;
}
}
return false;
}
public void updateDimensions(PreviewModelImpl model, Item[] nodeItems) {
float margin = model.getProperties().getFloatValue(PreviewProperty.MARGIN); //percentage
float topLeftX = 0f;
float topLeftY = 0f;
float bottomRightX = 0f;
float bottomRightY = 0f;
for (Item nodeItem : nodeItems) {
float x = (Float) nodeItem.getData("x");
float y = (Float) nodeItem.getData("y");
float s = ((Float) nodeItem.getData("size")) / 2f;
if (x - s < topLeftX) {
topLeftX = x - s;
}
if (y - s < topLeftY) {
topLeftY = y - s;
}
if (x + s > bottomRightX) {
bottomRightX = x + s;
}
if (y + s > bottomRightY) {
bottomRightY = y + s;
}
}
float marginWidth = (bottomRightX - topLeftX) * (margin / 100f);
float marginHeight = (bottomRightY - topLeftY) * (margin / 100f);
topLeftX -= marginWidth;
topLeftY -= marginHeight;
bottomRightX += marginWidth;
bottomRightY += marginHeight;
model.setDimensions(new Dimension((int) (bottomRightX - topLeftX), (int) (bottomRightY - topLeftY)));
model.setTopLeftPosition(new Point((int) topLeftX, (int) topLeftY));
}
@Override
public void render(RenderTarget target) {
PreviewModelImpl m = getModel();
render(target, m.getManagedEnabledRenderers(), m);
}
@Override
public void render(RenderTarget target, Workspace workspace) {
PreviewModelImpl m = getModel(workspace);
render(target, m.getManagedEnabledRenderers(), m);
}
@Override
public void render(RenderTarget target, Renderer[] renderers) {
render(target, renderers, getModel());
}
@Override
public void render(RenderTarget target, Renderer[] renderers, Workspace workspace) {
render(target, renderers, getModel(workspace));
}
private synchronized void render(RenderTarget target, Renderer[] renderers, PreviewModelImpl previewModel) {
if (previewModel != null) {
if (renderers == null) {
renderers = getRegisteredRenderers();
}
PreviewProperties properties = previewModel.getProperties();
//Progress
ProgressTicket progressTicket = null;
if (target instanceof AbstractRenderTarget) {
int tasks = 0;
for (Renderer r : renderers) {
for (String type : previewModel.getItemTypes()) {
for (Item item : previewModel.getItems(type)) {
if (r.isRendererForitem(item, properties)) {
tasks++;
}
}
}
}
progressTicket = ((AbstractRenderTarget) target).getProgressTicket();
Progress.switchToDeterminate(progressTicket, tasks);
}
//Render items
for (Renderer r : renderers) {
for (String type : previewModel.getItemTypes()) {
for (Item item : previewModel.getItems(type)) {
if (r.isRendererForitem(item, properties)) {
r.render(item, target, properties);
Progress.progress(progressTicket);
if (target instanceof AbstractRenderTarget) {
if (((AbstractRenderTarget) target).isCancelled()) {
return;
}
}
}
}
}
}
}
}
@Override
public synchronized PreviewModelImpl getModel() {
if (model == null) {
ProjectController pc = Lookup.getDefault().lookup(ProjectController.class);
if (pc.getCurrentWorkspace() != null) {
return getModel(pc.getCurrentWorkspace());
}
}
return model;
}
@Override
public synchronized PreviewModelImpl getModel(Workspace workspace) {
PreviewModelImpl m = workspace.getLookup().lookup(PreviewModelImpl.class);
if (m == null) {
m = new PreviewModelImpl(workspace);
workspace.add(m);
}
return m;
}
@Override
public RenderTarget getRenderTarget(String name) {
return getRenderTarget(name, getModel());
}
@Override
public RenderTarget getRenderTarget(String name, Workspace workspace) {
return getRenderTarget(name, getModel(workspace));
}
private synchronized RenderTarget getRenderTarget(String name, PreviewModel m) {
if (m != null) {
for (RenderTargetBuilder rtb : Lookup.getDefault().lookupAll(RenderTargetBuilder.class)) {
if (rtb.getName().equals(name)) {
return rtb.buildRenderTarget(m);
}
}
}
return null;
}
@Override
public Renderer[] getRegisteredRenderers() {
if (registeredRenderers == null) {
LinkedHashMap<String, Renderer> renderers = new LinkedHashMap<String, Renderer>();
for (Renderer r : Lookup.getDefault().lookupAll(Renderer.class)) {
renderers.put(r.getClass().getName(), r);
}
for (Renderer r : renderers.values().toArray(new Renderer[0])) {
Class superClass = r.getClass().getSuperclass();
if (superClass != null && superClass.getName().startsWith("org.gephi.preview.plugin.renderers.")) {
//Replace default renderer with plugin by removing it
renderers.remove(superClass.getName());
}
}
registeredRenderers = renderers.values().toArray(new Renderer[0]);
}
return registeredRenderers;
}
@Override
public boolean isAnyPluginRendererRegistered() {
if (anyPluginRendererRegistered == null) {
anyPluginRendererRegistered = false;
for (Renderer renderer : getRegisteredRenderers()) {
if (!renderer.getClass().getName().startsWith("org.gephi.preview.plugin.renderers.")) {
anyPluginRendererRegistered = true;
break;
}
}
}
return anyPluginRendererRegistered;
}
}