PkgTreePanel.java

/*
 * Copyright (C) 2014 Vinu K.N
 *
 * 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 org.domainmath.gui.pkgview.doc;

import java.io.File;
import java.util.ArrayList;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeCellRenderer;
import javax.swing.tree.TreeSelectionModel;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Unmarshaller;
import org.domainmath.gui.MainFrame;
import org.domainmath.gui.help.QuickHelpPanel;

/**
 *
 * @author Vinu K.N
 */
public class PkgTreePanel extends javax.swing.JPanel{
    private Packages j;
    private final JTree tree;
    private DefaultMutableTreeNode categoryNode;
    private final QuickHelpPanel quickHelpPanel;
    private final MainFrame frame;
    private final File xmlFile;
    private final DefaultMutableTreeNode top;

    /**
     * Creates new form PkgTreePanel
     * @param frame
     * @param quickHelpPanel
     * @param xmlFile
     */
    public PkgTreePanel(MainFrame frame,QuickHelpPanel quickHelpPanel,File xmlFile) {
        initComponents();
        this.frame=frame;
        this.quickHelpPanel = quickHelpPanel;
        this.xmlFile=xmlFile;
        j=new Packages();
        
        top = new DefaultMutableTreeNode("Packages");
        loadXML();
        tree = new JTree(top);
        tree.getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);
        ImageIcon icon = new javax.swing.ImageIcon(getClass().getResource("/org/domainmath/gui/pkgview/resources/icons/help-contents.png"));
        DefaultTreeCellRenderer renderer = new DefaultTreeCellRenderer();
        renderer.setLeafIcon(icon);
        tree.setCellRenderer(renderer);                         
        JScrollPane treeView = new JScrollPane(tree);
        add(treeView);
        setTreeSelectionListener();
    }

    private void loadXML(){
        
        JAXBContext jaxbContext;
        try {
            jaxbContext = JAXBContext.newInstance(Packages.class);
            Unmarshaller jaxbUnmarshaller = jaxbContext.createUnmarshaller();
            j = (Packages) jaxbUnmarshaller.unmarshal(xmlFile);
            createNodes(top);
        } catch (JAXBException ex) {
           
        }
    }
    /**
     * 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.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {

        setLayout(new java.awt.BorderLayout());
    }// </editor-fold>//GEN-END:initComponents


    // Variables declaration - do not modify//GEN-BEGIN:variables
    // End of variables declaration//GEN-END:variables

    private void createNodes(DefaultMutableTreeNode top) {
        ArrayList<Package> pkg = j.getPkg();
        for(Package p:pkg){
            DefaultMutableTreeNode name = new DefaultMutableTreeNode(p.getName());
            ArrayList<Function> functions = p.getFunctions();
            for(Function f:functions){
                
                ArrayList<String> list = f.getList();
                
                    categoryNode = new DefaultMutableTreeNode(f.getCategory());
                    name.add(categoryNode);
                
                for(String s:list){
                    DefaultMutableTreeNode node = new DefaultMutableTreeNode(s);
                    categoryNode.add(node);
                    
                }
            }
            top.add(name);
        }
    }
    

    private static void createAndShowGUI() {

        JFrame frame = new JFrame("TreeIconDemo");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);


        PkgTreePanel newContentPane = new PkgTreePanel(null,null,null);
        newContentPane.setOpaque(true); 
        frame.setContentPane(newContentPane);

        frame.pack();
        frame.setVisible(true);
    }

    public static void main(String[] args) {

        javax.swing.SwingUtilities.invokeLater(() -> {
            createAndShowGUI();
        });
    }
    private void setTreeSelectionListener() {
        tree.addTreeSelectionListener((TreeSelectionEvent tse) -> {
            DefaultMutableTreeNode node = (DefaultMutableTreeNode)
            tree.getLastSelectedPathComponent();
            
            if (node == null) return;
            
            if (node.isLeaf()) {
                quickHelpPanel.generate(node.toString());
                quickHelpPanel.setHelpText(node.toString());
            }
        });
    }
}