InferenceModelSelectionVisualPanel.java

/*
 * Copyright (C) 2013 Serdar
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package de.fub.maps.project.detector.wizards.detector;

import de.fub.maps.project.detector.model.inference.AbstractInferenceModel;
import de.fub.maps.project.detector.utils.DetectorUtils;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.util.List;
import java.util.Set;
import javax.swing.Action;
import javax.swing.JPanel;
import javax.swing.JTextArea;
import javax.swing.ListSelectionModel;
import org.openide.explorer.ExplorerManager;
import org.openide.explorer.view.OutlineView;
import org.openide.nodes.AbstractNode;
import org.openide.nodes.ChildFactory;
import org.openide.nodes.Children;
import org.openide.nodes.FilterNode;
import org.openide.nodes.Node;
import org.openide.util.Lookup;
import org.openide.util.NbBundle;
import org.openide.util.WeakListeners;

@NbBundle.Messages({
    "CLT_Inference_Models=Inference Model"
})
public final class InferenceModelSelectionVisualPanel extends JPanel implements ExplorerManager.Provider, PropertyChangeListener {

    private static final long serialVersionUID = 1L;
    private final ExplorerManager explorerManager = new ExplorerManager();

    /**
     * Creates new form InferenceModelSelectionVisualPanel
     */
    public InferenceModelSelectionVisualPanel() {
        initComponents();
        outlineView.getOutline().setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
        outlineView.getOutline().setRootVisible(false);
        explorerManager.setRootContext(new AbstractNode(Children.create(new InferenzModelNodeFactory(), true)));
        explorerManager.addPropertyChangeListener(WeakListeners.propertyChange(InferenceModelSelectionVisualPanel.this, explorerManager));
    }

    @Override
    public String getName() {
        return Bundle.CLT_Inference_Models();
    }

    public JTextArea getDescription() {
        return description;
    }

    public OutlineView getOutlineView() {
        return outlineView;
    }

    /**
     * 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() {

        outlineView = new org.openide.explorer.view.OutlineView(Bundle.CLT_Inference_Models());
        jScrollPane1 = new javax.swing.JScrollPane();
        description = new javax.swing.JTextArea();
        jLabel1 = new javax.swing.JLabel();

        setBorder(javax.swing.BorderFactory.createEmptyBorder(4, 4, 4, 4));
        setPreferredSize(new java.awt.Dimension(400, 300));

        outlineView.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(204, 204, 204)));

        jScrollPane1.setBorder(javax.swing.BorderFactory.createEmptyBorder(1, 1, 1, 1));
        jScrollPane1.setMinimumSize(new java.awt.Dimension(23, 58));
        jScrollPane1.setPreferredSize(new java.awt.Dimension(166, 58));

        description.setEditable(false);
        description.setColumns(20);
        description.setLineWrap(true);
        description.setRows(2);
        description.setWrapStyleWord(true);
        description.setMinimumSize(new java.awt.Dimension(4, 0));
        description.setOpaque(false);
        description.setPreferredSize(new java.awt.Dimension(164, 0));
        jScrollPane1.setViewportView(description);

        org.openide.awt.Mnemonics.setLocalizedText(jLabel1, org.openide.util.NbBundle.getMessage(InferenceModelSelectionVisualPanel.class, "InferenceModelSelectionVisualPanel.jLabel1.text")); // NOI18N
        jLabel1.setBorder(javax.swing.BorderFactory.createEmptyBorder(1, 4, 1, 4));

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
        this.setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(outlineView, javax.swing.GroupLayout.DEFAULT_SIZE, 392, Short.MAX_VALUE)
            .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
            .addComponent(jLabel1, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addComponent(outlineView, javax.swing.GroupLayout.DEFAULT_SIZE, 202, Short.MAX_VALUE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addComponent(jLabel1)
                .addGap(0, 0, 0)
                .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 63, javax.swing.GroupLayout.PREFERRED_SIZE))
        );
    }// </editor-fold>//GEN-END:initComponents
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JTextArea description;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JScrollPane jScrollPane1;
    private org.openide.explorer.view.OutlineView outlineView;
    // End of variables declaration//GEN-END:variables

    @Override
    public ExplorerManager getExplorerManager() {
        return explorerManager;
    }

    public AbstractInferenceModel getSelectedInferenceModel() {
        Node[] selectedNodes = getExplorerManager().getSelectedNodes();
        return selectedNodes.length == 1
                ? selectedNodes[0].getLookup().lookup(AbstractInferenceModel.class)
                : null;
    }

    @Override
    public void propertyChange(PropertyChangeEvent evt) {
        if (ExplorerManager.PROP_SELECTED_NODES.equals(evt.getPropertyName())) {
            Node[] selectedNodes = explorerManager.getSelectedNodes();
            if (selectedNodes.length == 1) {
                AbstractInferenceModel inferenceModel = selectedNodes[0].getLookup().lookup(AbstractInferenceModel.class);
                if (inferenceModel != null) {
                    getDescription().setText(inferenceModel.getDescription());
                }
            } else {
                getDescription().setText(null);
            }
        }
    }

    private static class InferenzModelNodeFactory extends ChildFactory<AbstractInferenceModel> {

        @Override
        protected boolean createKeys(List<AbstractInferenceModel> list) {
            Set<Class<? extends AbstractInferenceModel>> allClasses = Lookup.getDefault().lookupResult(AbstractInferenceModel.class).allClasses();
            for (Class<? extends AbstractInferenceModel> clazz : allClasses) {
                AbstractInferenceModel instance = DetectorUtils.createInstance(clazz, clazz.getName());
                list.add(instance);
            }
            return true;
        }

        @Override
        protected Node createNodeForKey(AbstractInferenceModel inferenceModel) {
            return new InferenceModelFilterNode(inferenceModel.getNodeDelegate());
        }
    }

    private static class InferenceModelFilterNode extends FilterNode {

        public InferenceModelFilterNode(Node original) {
            super(original);
        }

        @Override
        public Action[] getActions(boolean context) {
            return new Action[0];
        }

        @Override
        public String getShortDescription() {
            return null;
        }
    }
}