DisplayPhylogeny.java

package org.genedb.web.tags.db;

import java.io.IOException;

import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.jsp.JspWriter;
import javax.servlet.jsp.PageContext;

import org.genedb.db.taxon.TaxonNode;
import org.genedb.web.menu.CompositeMenu;
import org.genedb.web.menu.Menu;
import org.genedb.web.menu.SimpleMenu;

public class DisplayPhylogeny extends AbstractHomepageTag {

    int top = 200;
    int left = 154;

    private void buildMenu(TaxonNode node, CompositeMenu comSrc) {
        List<TaxonNode> childs = node.getChildren();
        for (TaxonNode child : childs) {
            if (child.isLeaf()) {
                SimpleMenu sm = new SimpleMenu(Integer.toString(Menu.counter++), child.getLabel(),
                        null);
                comSrc.add(sm);
            } else {
                CompositeMenu parentMenu = new CompositeMenu(Integer.toString(Menu.counter++),
                        child.getLabel(), null, false);
                comSrc.add(parentMenu);
                buildMenu(child, parentMenu);
            }
        }
    }

    @Override
    protected void display(TaxonNode node, JspWriter out) throws IOException {
        Menu.left = this.left;
        Menu.top = this.top;
        List<TaxonNode> nodes = node.getChildren();
        StringBuffer sb = new StringBuffer();
        StringBuffer top = new StringBuffer();
        int j = 1;
        sb
                .append("<div id=\"start\" onmouseover=\"showfirst();\" onmouseout=\"hidefirst();\" style=\"position: relative; border: 1px solid black; width: 154px; background: rgb(153, 153, 255);\"><a href=\"null\" style=\"text-decoration: none; color: white;\">Select Organism</a>");
        for (TaxonNode tnode : nodes) {
            CompositeMenu menu = new CompositeMenu(Integer.toString(Menu.counter++), tnode
                    .getLabel(), null, true);
            top.append(Menu.counter - 1);
            top.append(",");
            menu.setLevelCoord(Integer.toString(j));
            j++;
            buildMenu(tnode, menu);
            sb.append(menu.render(j - 1));
        }
        top.deleteCharAt(top.length() - 1);
        sb.append("<input type=\"hidden\" id=\"itemsLength\" value=\"" + Menu.counter + "\"/>");
        sb.append("<input type=\"hidden\" id=\"topItems\" value=\"" + top.toString() + "\"/>");
        Menu.counter = 0;
        out.print(sb.toString());
    }
}