EdgeLayoutWindowTopComponent.java

/*
 Copyright 2008-2012 Gephi
 Authors : Taras Klaskovsky <megaterik@gmail.com>
 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.desktop.edgelayout;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.util.*;
import javax.swing.*;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import org.gephi.desktop.edgelayout.GradientPresetPersistence.GradientPreset;
import org.gephi.desktop.edgelayout.LayoutPresetPersistence.Preset;
import org.gephi.desktop.preview.api.PreviewUIController;
import org.gephi.edgelayout.api.EdgeLayoutController;
import org.gephi.edgelayout.api.EdgeLayoutModel;
import org.gephi.edgelayout.api.SubdividedEdgeRenderer;
import org.gephi.edgelayout.spi.ColorChooserController;
import org.gephi.edgelayout.spi.EdgeLayout;
import org.gephi.edgelayout.spi.EdgeLayoutBuilder;
import org.gephi.edgelayout.spi.EdgeLayoutProperty;
import org.gephi.preview.api.ManagedRenderer;
import org.gephi.preview.api.PreviewController;
import org.gephi.preview.plugin.items.EdgeItem;
import org.gephi.project.api.ProjectController;
import org.gephi.project.api.Workspace;
import org.gephi.project.api.WorkspaceListener;
import org.gephi.ui.components.gradientslider.GradientSlider;
import org.netbeans.api.settings.ConvertAsProperties;
import org.openide.DialogDisplayer;
import org.openide.NotifyDescriptor;
import org.openide.awt.ActionID;
import org.openide.awt.ActionReference;
import org.openide.awt.StatusDisplayer;
import org.openide.explorer.propertysheet.PropertySheet;
import org.openide.nodes.AbstractNode;
import org.openide.nodes.Children;
import org.openide.nodes.Node;
import org.openide.nodes.Sheet;
import org.openide.util.Exceptions;
import org.openide.util.Lookup;
import org.openide.util.NbBundle;
import org.openide.util.NbBundle.Messages;
import org.openide.util.NbPreferences;
import org.openide.windows.TopComponent;

/**
 * Top component which displays something.
 */
@ConvertAsProperties(dtd = "-//org.gephi.desktop.edgelayout//EdgeLayoutWindow//EN",
autostore = false)
@TopComponent.Description(preferredID = "EdgeLayoutWindowTopComponent",
//iconBase="SET/PATH/TO/ICON/HERE", 
persistenceType = TopComponent.PERSISTENCE_ALWAYS)
@TopComponent.Registration(mode = "rankingmode", openAtStartup = true, roles = {"preview"})
@ActionID(category = "Window", id = "org.gephi.desktop.edgelayout.EdgeLayoutWindowTopComponent")
@ActionReference(path = "Menu/Window" /*
 * , position = 333
 */)
@TopComponent.OpenActionRegistration(displayName = "#CTL_EdgeLayoutWindowAction",
preferredID = "EdgeLayoutWindowTopComponent")
@Messages({
    "CTL_EdgeLayoutWindowAction=EdgeLayoutWindow",
    "CTL_EdgeLayoutWindowTopComponent=Edge Layout Window",
    "HINT_EdgeLayoutWindowTopComponent=This is a EdgeLayoutWindow window"
})
public final class EdgeLayoutWindowTopComponent extends TopComponent implements PropertyChangeListener {

    private EdgeLayoutController controller;
    private EdgeLayoutModel model;
    private LayoutPresetPersistence layoutPresetPersistence;
    private GradientSlider gradientSlider;
    private GradientPresetPersistence gradientPresetPersistence;

    private void refreshPreview() {
        if (controller.getModel() != null && controller.getModel().getSelectedLayout() != null && !controller.getModel().isRunning()) {
            controller.getModel().getSelectedLayout().modifyAlgo();
        }
        Lookup.getDefault().lookup(PreviewUIController.class).refreshPreview();
    }

    public EdgeLayoutWindowTopComponent() {
        initComponents();
        setName(Bundle.CTL_EdgeLayoutWindowTopComponent());
        setToolTipText(Bundle.HINT_EdgeLayoutWindowTopComponent());
        putClientProperty(TopComponent.PROP_MAXIMIZATION_DISABLED, Boolean.TRUE);
        putClientProperty(TopComponent.PROP_UNDOCKING_DISABLED, Boolean.TRUE);
        controller = Lookup.getDefault().lookup(EdgeLayoutController.class);
        Lookup.getDefault().lookup(ProjectController.class).addWorkspaceListener(new WorkspaceListener() {

            public void initialize(Workspace workspace) {
            }

            public void select(Workspace workspace) {
                model = workspace.getLookup().lookup(EdgeLayoutModel.class);
                if (model.getSelectedBuilder() != null) {
                    for (int i = 0; i < layoutComboBox.getItemCount(); i++) {
                        if (layoutComboBox.getItemAt(i) instanceof EdgeLayoutWrapper
                                && ((EdgeLayoutWrapper) layoutComboBox.getItemAt(i)).getBuilder().equals(model.getSelectedBuilder())) {
                            layoutComboBox.setSelectedIndex(i);
                            break;
                        }
                    }
                } else {
                    layoutComboBox.setSelectedIndex(0);
                }
            }

            public void unselect(Workspace workspace) {
            }

            public void close(Workspace workspace) {
                layoutComboBox.setSelectedIndex(0);
            }

            public void disable() {
                model = null;
            }
        });
        Lookup.getDefault().lookup(EdgeLayoutController.class).addRefreshListener(new ChangeListener() {

            @Override
            public void stateChanged(ChangeEvent e) {
                if (e.getSource().equals("end") || e.getSource().equals("stop")) {
                    regenerateRunButtonWhenLayoutStops();
                }
                refreshPreview();
            }
        });
        regenerateRunButton(true);
        regenerateSettings();
        regenerateCombobox();

        gradientSliderPanel.setLayout(new BorderLayout());

        if (Lookup.getDefault().lookup(ColorChooserController.class).getColors()
                != null
                && Lookup.getDefault().lookup(ColorChooserController.class).getThumbPositions()
                != null) {
            gradientSlider = new GradientSlider(GradientSlider.HORIZONTAL,
                    Lookup.getDefault().lookup(ColorChooserController.class).getThumbPositions(),
                    Lookup.getDefault().lookup(ColorChooserController.class).getColors());
        } else {
            gradientSlider = new GradientSlider(GradientSlider.HORIZONTAL, new float[]{0f, 0.4f, 0.6f,
                        1f}, new Color[]{Color.BLUE, Color.PINK, Color.RED, Color.YELLOW});
            Lookup.getDefault().lookup(ColorChooserController.class).setColors(gradientSlider.getColors());
            Lookup.getDefault().lookup(ColorChooserController.class).setThubmPositions(gradientSlider.getThumbPositions());
        }
        gradientSliderPanel.add(gradientSlider, BorderLayout.CENTER);
        gradientSlider.addChangeListener(new ChangeListener() {

            @Override
            public void stateChanged(ChangeEvent e) {
                Lookup.getDefault().lookup(ColorChooserController.class).setColors(gradientSlider.getColors());
                Lookup.getDefault().lookup(ColorChooserController.class).setThubmPositions(gradientSlider.getThumbPositions());
            }
        });

        layoutPresetPersistence = new LayoutPresetPersistence();
        gradientPresetPersistence = new GradientPresetPersistence();

        gradientPresetPersistence.savePreset(org.openide.util.NbBundle.getMessage(EdgeLayoutWindowTopComponent.class, "gradients.white_blue"), new GradientSlider(GradientSlider.HORIZONTAL, new float[]{0f, 1f}, new Color[]{Color.WHITE, Color.BLUE}));
        gradientPresetPersistence.savePreset(org.openide.util.NbBundle.getMessage(EdgeLayoutWindowTopComponent.class, "gradients.blue_pink_red_yellow"), new GradientSlider(GradientSlider.HORIZONTAL, new float[]{0f, 0.4f, 0.6f, 1f},
                new Color[]{Color.BLUE, Color.PINK, Color.RED, Color.YELLOW}));
    }

    private void regenerateSettings() {
        if (controller.getModel() != null && controller.getModel().getSelectedLayout() != null) {
            JPanel layoutPanel = null;
            try {
                layoutPanel = controller.getModel().getSelectedBuilder().getUI().getSimplePanel(controller.getModel().getSelectedLayout());
            } catch (Exception ex) {
                // No simple panel, switch to PropertySheet instead
            }
            if (layoutPanel != null) {
                settingsPanel.removeAll();
                settingsPanel.add(layoutPanel);
                settingsPanel.revalidate();
            } else {
                JPanel propertySheet = new PropertySheet();
                LayoutNode layoutNode;
                layoutNode = new LayoutNode(controller.getModel().getSelectedLayout());
                layoutNode.getPropertySets();
                ((PropertySheet) propertySheet).setEnabled(false);
                ((PropertySheet) propertySheet).setNodes(new Node[]{layoutNode});

                propertySheet.setFocusable(false);
                settingsPanel.removeAll();
                settingsPanel.add(propertySheet);
                settingsPanel.revalidate();
            }
        } else {
            settingsPanel.removeAll();
            settingsPanel.revalidate();
        }
    }

    private void regenerateCombobox() {
        ArrayList<EdgeLayoutBuilder> list = new ArrayList(Lookup.getDefault().lookupAll(EdgeLayoutBuilder.class));

        ArrayList sortedlist = new ArrayList(list.size());
        for (int i = 0; i < list.size(); i++) {
            sortedlist.add(new EdgeLayoutWrapper(list.get(i)));
        }
        Collections.sort(sortedlist);
        sortedlist.add(0, org.openide.util.NbBundle.getMessage(EdgeLayoutWindowTopComponent.class, "choose_layout"));
        DefaultComboBoxModel model = new DefaultComboBoxModel(sortedlist.toArray());
        layoutComboBox.setModel(model);
    }

    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {

        runButton = new javax.swing.JButton();
        gradientSliderPanel = new javax.swing.JPanel();
        layoutComboBox = new javax.swing.JComboBox();
        refreshButton = new javax.swing.JButton();
        layoutToolbar = new javax.swing.JToolBar();
        presetsButton = new javax.swing.JButton();
        gradientsButton = new javax.swing.JButton();
        deleteButton = new javax.swing.JButton();
        settingsPanel = new javax.swing.JPanel();
        killButton = new javax.swing.JButton();

        org.openide.awt.Mnemonics.setLocalizedText(runButton, org.openide.util.NbBundle.getMessage(EdgeLayoutWindowTopComponent.class, "EdgeLayoutWindowTopComponent.runButton.text")); // NOI18N
        runButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                runButtonActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout gradientSliderPanelLayout = new javax.swing.GroupLayout(gradientSliderPanel);
        gradientSliderPanel.setLayout(gradientSliderPanelLayout);
        gradientSliderPanelLayout.setHorizontalGroup(
            gradientSliderPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 0, Short.MAX_VALUE)
        );
        gradientSliderPanelLayout.setVerticalGroup(
            gradientSliderPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 84, Short.MAX_VALUE)
        );

        layoutComboBox.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "Item 1", "Item 2", "Item 3", "Item 4" }));
        layoutComboBox.addItemListener(new java.awt.event.ItemListener() {
            public void itemStateChanged(java.awt.event.ItemEvent evt) {
                layoutComboBoxItemStateChanged(evt);
            }
        });

        org.openide.awt.Mnemonics.setLocalizedText(refreshButton, org.openide.util.NbBundle.getMessage(EdgeLayoutWindowTopComponent.class, "EdgeLayoutWindowTopComponent.refreshButton.text")); // NOI18N
        refreshButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                refreshButtonActionPerformed(evt);
            }
        });

        layoutToolbar.setRollover(true);

        org.openide.awt.Mnemonics.setLocalizedText(presetsButton, org.openide.util.NbBundle.getMessage(EdgeLayoutWindowTopComponent.class, "EdgeLayoutWindowTopComponent.presetsButton.text")); // NOI18N
        presetsButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                presetsButtonActionPerformed(evt);
            }
        });
        layoutToolbar.add(presetsButton);

        org.openide.awt.Mnemonics.setLocalizedText(gradientsButton, org.openide.util.NbBundle.getMessage(EdgeLayoutWindowTopComponent.class, "EdgeLayoutWindowTopComponent.gradientsButton.text")); // NOI18N
        gradientsButton.setFocusable(false);
        gradientsButton.setHorizontalTextPosition(javax.swing.SwingConstants.CENTER);
        gradientsButton.setVerticalTextPosition(javax.swing.SwingConstants.BOTTOM);
        gradientsButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                gradientsButtonActionPerformed(evt);
            }
        });
        layoutToolbar.add(gradientsButton);

        org.openide.awt.Mnemonics.setLocalizedText(deleteButton, org.openide.util.NbBundle.getMessage(EdgeLayoutWindowTopComponent.class, "EdgeLayoutWindowTopComponent.deleteButton.text")); // NOI18N
        deleteButton.setToolTipText(org.openide.util.NbBundle.getMessage(EdgeLayoutWindowTopComponent.class, "EdgeLayoutWindowTopComponent.deleteButton.toolTipText")); // NOI18N
        deleteButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                deleteButtonActionPerformed(evt);
            }
        });

        settingsPanel.setLayout(new javax.swing.BoxLayout(settingsPanel, javax.swing.BoxLayout.LINE_AXIS));

        org.openide.awt.Mnemonics.setLocalizedText(killButton, org.openide.util.NbBundle.getMessage(EdgeLayoutWindowTopComponent.class, "EdgeLayoutWindowTopComponent.killButton.text")); // NOI18N
        killButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                killButtonActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
        this.setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(gradientSliderPanel, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                        .addComponent(layoutToolbar, javax.swing.GroupLayout.PREFERRED_SIZE, 167, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 23, Short.MAX_VALUE)
                        .addComponent(deleteButton))
                    .addComponent(settingsPanel, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addGroup(layout.createSequentialGroup()
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addComponent(layoutComboBox, 0, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                            .addGroup(layout.createSequentialGroup()
                                .addComponent(refreshButton)
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                .addComponent(killButton, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                .addComponent(runButton, javax.swing.GroupLayout.PREFERRED_SIZE, 77, javax.swing.GroupLayout.PREFERRED_SIZE)))
                        .addContainerGap())))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGap(16, 16, 16)
                .addComponent(layoutComboBox, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(refreshButton)
                    .addComponent(runButton)
                    .addComponent(killButton))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addComponent(gradientSliderPanel, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(settingsPanel, javax.swing.GroupLayout.DEFAULT_SIZE, 305, Short.MAX_VALUE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                    .addComponent(layoutToolbar, javax.swing.GroupLayout.PREFERRED_SIZE, 20, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(deleteButton, javax.swing.GroupLayout.PREFERRED_SIZE, 0, Short.MAX_VALUE)))
        );
    }// </editor-fold>//GEN-END:initComponents

    private void switchToSubdividedRenderer() {
        ManagedRenderer[] renderers = Lookup.getDefault().lookup(PreviewController.class).getModel().getManagedRenderers();
        for (int i = 0; i < renderers.length; i++) {
            // if (renderers[i].getRenderer() instanceof EdgeRenderer || renderers[i].getRenderer() instanceof ArrowRenderer) {
            // EdgeRenderer somehow can't be found by netbeans after I moved it from preview plugin because of the lookup bug, so temponary hack is
            if (renderers[i].getRenderer().isRendererForitem(new EdgeItem(null), 
                    Lookup.getDefault().lookup(PreviewController.class).getModel().getProperties())) {
                renderers[i].setEnabled(false);
            }
        }

        for (int i = 0; i < renderers.length; i++) {
            if (renderers[i].getRenderer() instanceof SubdividedEdgeRenderer) {
                renderers[i].setEnabled(true);
            }
        }
    }

    private void switchToEdgeRenderer() {
        ManagedRenderer[] renderers = Lookup.getDefault().lookup(PreviewController.class).getModel().getManagedRenderers();
        for (int i = 0; i < renderers.length; i++) {
            //  if (renderers[i].getRenderer() instanceof EdgeRenderer || renderers[i].getRenderer() instanceof ArrowRenderer) {
            if (renderers[i].getRenderer().isRendererForitem(new EdgeItem(null),
                    Lookup.getDefault().lookup(PreviewController.class).getModel().getProperties()))  {
                renderers[i].setEnabled(true);
            } else if (renderers[i].getRenderer() instanceof SubdividedEdgeRenderer) {
                renderers[i].setEnabled(false);
            }
        }
    }

    private void deleteButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_deleteButtonActionPerformed
        EdgeLayout layout = (EdgeLayout) controller.getModel().getSelectedLayout();
        layout.removeLayoutData();
        switchToEdgeRenderer();
    }//GEN-LAST:event_deleteButtonActionPerformed

    private void run() {
        if (controller.canExecute()) {
            switchToSubdividedRenderer();
            controller.executeLayout();
        }
    }

    private void stop() {
        if (controller.canStop()) {
            controller.stopLayout();
        }
    }

    private boolean layoutIsRunning() {
        return (controller.getModel() != null && controller.getModel().isRunning());
    }

    private void regenerateRunButtonWhenLayoutStops() {
        runButton.setText(org.openide.util.NbBundle.getMessage(EdgeLayoutWindowTopComponent.class, "run"));
        layoutComboBox.setEnabled(true);
    }

    private void regenerateRunButton(boolean shouldRefresh) {
        boolean refresh = false;
        if (layoutIsRunning() != !layoutComboBox.isEnabled() && shouldRefresh) //i.e., it just changed and we should update preview
        {
            refresh = true;
        }
        if (layoutIsRunning()) {
            runButton.setText(org.openide.util.NbBundle.getMessage(EdgeLayoutWindowTopComponent.class, "stop"));
            layoutComboBox.setEnabled(false);
        } else {
            runButton.setText(org.openide.util.NbBundle.getMessage(EdgeLayoutWindowTopComponent.class, "run"));
            layoutComboBox.setEnabled(true);
        }
        if (refresh) {
            refreshPreview();
        }
    }

    private void runButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_runButtonActionPerformed
        if (layoutIsRunning()) {
            stop();
        } else {
            run();
        }
        regenerateRunButton(true);
    }//GEN-LAST:event_runButtonActionPerformed

    private void layoutComboBoxItemStateChanged(java.awt.event.ItemEvent evt) {//GEN-FIRST:event_layoutComboBoxItemStateChanged
        if (layoutComboBox.getSelectedItem() instanceof EdgeLayoutWrapper) {
            EdgeLayoutWrapper wrapper = (EdgeLayoutWrapper) layoutComboBox.getSelectedItem();
            controller.setLayout(wrapper.getBuilder().buildLayout());
            runButton.setEnabled(true);
        } else {
            controller.setLayout(null);
            runButton.setEnabled(false);
        }
        regenerateSettings();
    }//GEN-LAST:event_layoutComboBoxItemStateChanged

    private void refreshButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_refreshButtonActionPerformed
        refreshPreview();
    }//GEN-LAST:event_refreshButtonActionPerformed

    private void presetsButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_presetsButtonActionPerformed
        JPopupMenu menu = new JPopupMenu();
        List<Preset> presets = null;
        if (model == null) {
            model = controller.getModel();
        }
        if (model.getSelectedLayout() != null) {
            presets = layoutPresetPersistence.getPresets(model.getSelectedLayout());
        }
        if (presets != null && !presets.isEmpty()) {
            for (final Preset p : presets) {
                JMenuItem item = new JMenuItem(p.toString());
                item.addActionListener(new ActionListener() {

                    public void actionPerformed(ActionEvent e) {
                        layoutPresetPersistence.loadPreset(p, model.getSelectedLayout());
                        repaint();
                        StatusDisplayer.getDefault().setStatusText(NbBundle.getMessage(EdgeLayoutWindowTopComponent.class, "EdgeLayoutWindowTopComponent.status.loadPreset", model.getSelectedBuilder().getName(), p.toString()));
                    }
                });
                menu.add(item);
            }
        } else {
            //menu.add("<html><i>" + NbBundle.getMessage(LayoutPanel.class, "LayoutPanel.presetsButton.nopreset") + "</i></html>");
            menu.add(org.openide.util.NbBundle.getMessage(EdgeLayoutWindowTopComponent.class, "no_presets"));
        }

        //JMenuItem saveItem = new JMenuItem(NbBundle.getMessage(LayoutPanel.class, "LayoutPanel.presetsButton.savePreset"));
        JMenuItem saveItem = new JMenuItem(org.openide.util.NbBundle.getMessage(EdgeLayoutWindowTopComponent.class, "save"));
        saveItem.addActionListener(new ActionListener() {

            public void actionPerformed(ActionEvent e) {
                String lastPresetName = NbPreferences.forModule(EdgeLayoutWindowTopComponent.class).get("EdgeLayoutWindowPanel.lastPresetName", "");
                // NotifyDescriptor.InputLine question = new NotifyDescriptor.InputLine(
                //        NbBundle.getMessage(LayoutPanel.class, "LayoutPanel.presetsButton.savePreset.input"),
                //        NbBundle.getMessage(LayoutPanel.class, "LayoutPanel.presetsButton.savePreset.input.name"));
                NotifyDescriptor.InputLine question = new NotifyDescriptor.InputLine("text", "title");
                question.setInputText(lastPresetName);
                if (DialogDisplayer.getDefault().notify(question) == NotifyDescriptor.OK_OPTION) {
                    String input = question.getInputText();
                    if (input != null && !input.isEmpty()) {
                        layoutPresetPersistence.savePreset(input, model.getSelectedLayout());
                        StatusDisplayer.getDefault().setStatusText(NbBundle.getMessage(EdgeLayoutWindowTopComponent.class, "EdgeLayoutWindowTopComponent.savePreset", layoutComboBox.getSelectedItem().toString(), input));
                        NbPreferences.forModule(EdgeLayoutWindowTopComponent.class).put("EdgeLayoutWindowPanel.lastPresetName", input);
                    }
                }
            }
        });
        menu.add(new JSeparator());
        menu.add(saveItem);
        menu.show(layoutToolbar, 0, -menu.getPreferredSize().height);
    }//GEN-LAST:event_presetsButtonActionPerformed

    private void gradientsButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_gradientsButtonActionPerformed
        JPopupMenu menu = new JPopupMenu();
        ArrayList<GradientPreset> presets = null;
        if (model == null) {
            model = controller.getModel();
        }
        if (model.getSelectedLayout() != null) {
            presets = gradientPresetPersistence.getPresets();
        }
        if (presets != null && !presets.isEmpty()) {
            for (final GradientPreset p : presets) {
                JMenuItem item = new JMenuItem(p.toString());
                item.addActionListener(new ActionListener() {

                    public void actionPerformed(ActionEvent e) {
                        gradientPresetPersistence.loadPreset(p, gradientSlider);
                        StatusDisplayer.getDefault().setStatusText(NbBundle.getMessage(EdgeLayoutWindowTopComponent.class, "EdgeLayoutWindowTopComponent.status.loadGradientPreset", p.toString()));
                    }
                });
                menu.add(item);
            }
        } else {
            //menu.add("<html><i>" + NbBundle.getMessage(LayoutPanel.class, "LayoutPanel.presetsButton.nopreset") + "</i></html>");
            menu.add(org.openide.util.NbBundle.getMessage(EdgeLayoutWindowTopComponent.class, "no_presets"));
        }

        //JMenuItem saveItem = new JMenuItem(NbBundle.getMessage(LayoutPanel.class, "LayoutPanel.presetsButton.savePreset"));
        JMenuItem saveItem = new JMenuItem(org.openide.util.NbBundle.getMessage(EdgeLayoutWindowTopComponent.class, "save"));
        saveItem.addActionListener(new ActionListener() {

            public void actionPerformed(ActionEvent e) {
                String lastPresetName = NbPreferences.forModule(EdgeLayoutWindowTopComponent.class).get("EdgeLayoutWindowTopComponent.lastGradientPesetName", "");
                // NotifyDescriptor.InputLine question = new NotifyDescriptor.InputLine(
                //        NbBundle.getMessage(LayoutPanel.class, "LayoutPanel.presetsButton.savePreset.input"),
                //        NbBundle.getMessage(LayoutPanel.class, "LayoutPanel.presetsButton.savePreset.input.name"));
                // question.setInputText(lastPresetName);
                NotifyDescriptor.InputLine question = new NotifyDescriptor.InputLine("text", "title");
                question.setInputText(lastPresetName);
                if (DialogDisplayer.getDefault().notify(question) == NotifyDescriptor.OK_OPTION) {
                    String input = question.getInputText();
                    if (input != null && !input.isEmpty()) {
                        gradientPresetPersistence.savePreset(input, gradientSlider);
                        StatusDisplayer.getDefault().setStatusText(NbBundle.getMessage(EdgeLayoutWindowTopComponent.class, "EdgeLayoutWindowTopComponent.saveGradientPreset", input));
                        NbPreferences.forModule(EdgeLayoutWindowTopComponent.class).put("EdgeLayoutWindowTopComponent.lastGradientPesetName", input);
                    }
                }
            }
        });
        menu.add(new JSeparator());
        menu.add(saveItem);
        menu.show(layoutToolbar, 0, -menu.getPreferredSize().height);
    }//GEN-LAST:event_gradientsButtonActionPerformed

    private void killButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_killButtonActionPerformed
        if (controller.canStop()) {
            controller.killLayout();
        }
        regenerateRunButton(true);
    }//GEN-LAST:event_killButtonActionPerformed
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JButton deleteButton;
    private javax.swing.JPanel gradientSliderPanel;
    private javax.swing.JButton gradientsButton;
    private javax.swing.JButton killButton;
    private javax.swing.JComboBox layoutComboBox;
    private javax.swing.JToolBar layoutToolbar;
    private javax.swing.JButton presetsButton;
    private javax.swing.JButton refreshButton;
    private javax.swing.JButton runButton;
    private javax.swing.JPanel settingsPanel;
    // End of variables declaration//GEN-END:variables

    @Override
    public void componentOpened() {
    }

    @Override
    public void componentClosed() {
    }

    void writeProperties(java.util.Properties p) {
        // better to version settings since initial version as advocated at
        // http://wiki.apidesign.org/wiki/PropertyFiles
        p.setProperty("version", "1.0");
    }

    void readProperties(java.util.Properties p) {
        String version = p.getProperty("version");
    }

    @Override
    public void propertyChange(PropertyChangeEvent evt) {
    }

    private class EdgeLayoutWrapper implements Comparable<EdgeLayoutWrapper> {

        EdgeLayoutBuilder builder;

        public EdgeLayoutWrapper(EdgeLayoutBuilder builder) {
            this.builder = builder;
        }

        public EdgeLayoutBuilder getBuilder() {
            return builder;
        }

        @Override
        public String toString() {
            return builder.getName().toString();
        }

        @Override
        public int compareTo(EdgeLayoutWrapper o) {
            return builder.getName().compareTo(o.getBuilder().getName());
        }
    }

    /**
     *
     * @author Mathieu Bastian
     */
    private class LayoutNode extends AbstractNode {

        private EdgeLayout layout;
        private PropertySet[] propertySets;

        public LayoutNode(EdgeLayout layout) {
            super(Children.LEAF);
            this.layout = layout;
            setName(layout.getBuilder().getName());
        }

        @Override
        public PropertySet[] getPropertySets() {
            if (propertySets == null) {
                try {
                    Map<String, Sheet.Set> sheetMap = new HashMap<String, Sheet.Set>();
                    for (EdgeLayoutProperty layoutProperty : layout.getProperties()) {
                        Sheet.Set set = sheetMap.get(layoutProperty.getCategory());
                        if (set == null) {
                            set = Sheet.createPropertiesSet();
                            set.setDisplayName(layoutProperty.getCategory());
                            sheetMap.put(layoutProperty.getCategory(), set);
                        }
                        set.put(layoutProperty.getProperty());
                    }
                    propertySets = sheetMap.values().toArray(new PropertySet[0]);
                } catch (Exception ex) {
                    Exceptions.printStackTrace(ex);
                    return null;
                }
            }
            return propertySets;
        }

        public EdgeLayout getLayout() {
            return layout;
        }
    }
}