package e4s.tutorial;

import e4s.html.*;
import e4s.html.tree.E4Tree;
import e4s.html.tree.E4TreeNode;
import e4s.servlet.*;
import e4s.util.E4Images;

import java.io.*;
import java.util.*;
import java.text.*;


/**
 * Useing a simple tree navigation.
 *
 * {@tutorial Example_Tree}
 */
public class Example_Tree extends E4ModuleImplementation
{
	// private static boolean declared = E4MethodRegistry.declareClass(new mainTutorial(null));
	
	public static E4Method treeExampleA = null;
	public static E4Method treeExampleB = null;
	public static E4Method treeExampleC = null;
	public static E4Method treeTest = null;

	
	public void treeExampleA( HTML html )
	{
		doExample( html, E4Tree.TREE_STYLE_IMAGES_A );
	}
	
	public void treeExampleB( HTML html )
	{
		doExample( html, E4Tree.TREE_STYLE_IMAGES_B );
	}
	
	public void treeExampleC( HTML html )
	{
		doExample( html, E4Tree.TREE_STYLE_IMAGES_C );
	}
	
	private void doExample( HTML html, int image_style )
	{
		FRAMESET frameset = html.FRAMESET(FRAMESET._FRAMESET_COLS);
		FRAME frame_tree = frameset.FRAME(0.6f);
		FRAME frame_target = frameset.FRAME("*",FRAME.NO_SCROLLING);
		
		IMG folder0 = new IMG(E4Images.folder_0);
		IMG folder1 = new IMG(E4Images.folder_1);
		IMG home = new IMG("images/tree/home.gif");
		
		E4TreeNode tree = new E4TreeNode();
		tree.setText("Motorcycles");
		tree.setImage(home);
		tree.setAction(treeTest );
		
		E4TreeNode us = new E4TreeNode();
		us.setText("US");
		if (image_style == E4Tree.TREE_STYLE_IMAGES_A)
			us.setImage(folder0,folder1);
		us.setAction(treeTest );
		
		E4TreeNode japaneese = new E4TreeNode();
		japaneese.setText("Japaneese");
		if (image_style == E4Tree.TREE_STYLE_IMAGES_A)
			japaneese.setImage(folder0);
		japaneese.setAction(treeTest );
		us.setOpen(false);
		
		E4TreeNode german = new E4TreeNode();
		german.setText("German");
		german.setAction(treeTest );
		german.setOpen(false);

		tree.addNode(us);
		tree.addNode(japaneese);
		tree.addNode(german);

		addNodes( japaneese, new String[] { "Honda", "Yamaha", "Suzuki", "Kawasaki" } );
		addNodes( us, new String[] { "Harley-Davidson" } );
		addNodes( german, new String[] { "BMW","MZ" } );

		E4Tree treeNav = new E4Tree( E4ID(),"MAINTREE",tree,frame_target.getFrameName(),getServlet());
		treeNav.setDefaultMethod(treeTest);
		treeNav.setImageStyle(image_style);
		
		frame_tree.TreeElement(treeNav);	
	}
	 
	public void addNodes( E4TreeNode tree, String elements[] )
	{
		for( int i = 0; i < elements.length; i++ )
		{
			E4TreeNode newNode = new E4TreeNode();
			newNode.setText(elements[i]);
			tree.addNode(newNode);
		}
	}

	public void treeTest( HTML html, E4CgiParams p )
	{
		html.println("treeTest()");
		TABLE table = html.TABLE(TABLE.E4S_DEFAULT_TABLE());
		p.toTable(table);
	}
	
}