/* started:8:08 PM 10/19/99  */

package simple.tree;

import javax.swing.*;
import javax.swing.tree.*;
import java.awt.*;
import java.io.*;
import java.util.*;

class FileTreeNode extends DefaultMutableTreeNode{

	private  String filepath, name;

	FileTreeNode(Object o  ){ super( o ); }

	public void setData(File file ){
		try{
			filepath = file.getCanonicalPath();
			name  = file.getName();
			//System.out.println(filepath);
		} catch ( IOException ioe){ }
	}
	public void add( FileTreeNode filetreenode ){
		super.add(filetreenode);
	}
}

public class FileTree{


	private void fileRecurse( File f, FileTreeNode ftn  ){

		FileTreeNode new_ftn;

		try{
			//associeer f met ftn
			ftn.setData( f );

			// recurse through branches
			if ( f.isDirectory( ) ) {
				String list[ ] = f.list( );
				Arrays.sort(list);
				for (int i = 0; i < list.length; i++){
					new_ftn = new FileTreeNode( list[ i ] );
					ftn.add( new_ftn );
					fileRecurse( new File(f,  list[ i ] ), new_ftn );
				}
			} else { 		}
		}  catch ( Exception ioe ){
			System.out.println("ERROR in fileRecurse()");
			ioe.printStackTrace( );
		}

	}

	private void fillTheTree( ){

		if (root==null) { System.out.println("ERROR: no root defined"); System.exit(0);}
		try{
			System.out.print("Reading file system...");
			File file = new File( rootpath );
			FileTreeNode ftn = root; //new FileTreeNode( file.getName( ) );
			fileRecurse( file,  ftn);
			System.out.println("READY");
		} catch ( Exception ioe){ }
	}// end FileTree.fillTheTree( )


	private JFrame		appframe;	// mother frame
	private Container		container;	// her conatiner
	private JScrollPane		scrollerleft,	// contains Tree
				scrollerright;	// contains other display

	private JSplitPane		splitpane;	// ?

	private
	FileTreeNode		root=null;	// the root of the tree
	private JTree		tree;		// the tree

	private String 		rootpath;		//pathstring root 

	FileTree(String rtpath ){

		rootpath = rtpath;

	// 1. Setup basic frame
		appframe = new JFrame("Een simpele filetree");
		container = appframe.getContentPane( );
		appframe.setSize(400,350);

	// 2. Setup tree
	// CREATE TREE
	// FILL TREE
		root = new FileTreeNode( rootpath );
		createTheTree( );
		fillTheTree( );

	// 3. Setup panels
		scrollerleft = new JScrollPane(tree);			// create left-panel
		scrollerright = new JScrollPane(new JPanel( ) );		// create right-panel

	// 4. Create splitpanel
		splitpane = new JSplitPane (JSplitPane.HORIZONTAL_SPLIT, true, scrollerleft, scrollerright );

	// 5. Add splitpanel to container
		container.add(splitpane);

	// 6. Display all
		appframe.setVisible( true );				//necessary to get width of spl. pane
		splitpane.setDividerLocation( 2*container.getWidth( )/3 );
	}

	void createTheTree( ){
		tree =new JTree(root);
		tree.getSelectionModel().setSelectionMode(
			TreeSelectionModel.SINGLE_TREE_SELECTION);
		tree.setEditable(true);
	}

	public static void main(String args[]){
		FileTree fileTree;

		if ( args.length>0 ){
			fileTree = new FileTree( args[0] );
		} else {
			fileTree = new FileTree("E:\\jdk12\\bin\\classes" );
		}
	}
}