/* SCCS  %W%---%G%--%U% */

// Copyright: Copyright (c) 1997 University of Southern California Brain Project.
// Copyright: This software may be freely copied provided the toplevel
// Copyright: COPYRIGHT file is included with each such copy.
// Copyright: Email nsl@java.usc.edu.

package nslj.src.display;

import java.awt.*;
import java.util.*;
import nslj.src.lang.*; 
import nslj.src.system.*;
import java.awt.event.*;
public class NslDisplayZoomFrame extends Frame implements ActionListener
{
    public NslDisplayZoomFrame(NslDisplayCanvas ndc)
    {
        Panel p = new Panel();
        p.setBackground(Color.lightGray);
        p.setLayout(new FlowLayout(FlowLayout.LEFT));
	Button b = (Button) p.add(new Button("Zoom in"));
	b.addActionListener(new ActionListener() {
	  public void actionPerformed(ActionEvent evt) {   
	    canvas.zoom_in();
	  }
	});
	b = (Button) p.add(new Button("Zoom out"));
	b.addActionListener(new ActionListener() {
	  public void actionPerformed(ActionEvent evt) {   
	    canvas.zoom_out();
	  }
	});
        add("North",p);

        canvas = ndc;
        canvas.set_canvas_type("Zoom");
	setTitle(canvas.getName());
	canvas.addMouseListener(new ZoomMouseAdapter());
	canvas.addMouseMotionListener(new ZoomMouseAdapter());


        MenuBar mbar = new MenuBar();
        Menu m = new Menu("File");
        m.add(new MenuItem("Export Data"));
        m.add(new MenuItem("Print"));
        m.add(new MenuItem("Close"));
        mbar.add(m);
	m.addActionListener(this);

        setMenuBar(mbar);

        drawPanel = new Panel();
	
        gb = new GridLayout();
        drawPanel.setLayout(gb);
        drawPanel.add(canvas);
        add("Center",drawPanel);
	
	addWindowListener( new WindowAdapter() { 
	  public void windowClosing(WindowEvent evt) { 
	    dispose();
	  }
	} );
    }

  private class ZoomMouseAdapter extends MouseAdapter implements MouseMotionListener {
    public void mousePressed(MouseEvent evt) {
      canvas.mousePressed(evt);
    }
    public void mouseReleased(MouseEvent evt) {
      canvas.mouseReleased(evt);
    }
    public void mouseDragged(MouseEvent evt) {
      canvas.mouseDragged(evt);
    }
    public void mouseMoved(MouseEvent evt) {
    }
  }

  public void actionPerformed(ActionEvent evt) {   
      String action = evt.getActionCommand();
      if (action.equals("Close"))
	dispose();
      else if (action.equals("Print")) {
	canvas.Print();
      } else if (action.equals("Export Data")) {
	System.out.println("NslDisplayZoomFrame:Exporting...");
	//NslDisplayOutFileProperty ndofp = new NslDisplayOutFileProperty(NslDisplayCanvas.Frame);
	//ndofp.show();
	System.out.println("NslDisplayZoomFrame:Finished saving...");
      }           
  }

  NslDisplayCanvas canvas;
  private Panel drawPanel;
  private GridLayout gb;
  private GridBagConstraints gbc;
}