/*
Research Project:   Graphical Database for Category Theory
                    J. Bradbury, Dr. R. Rosebrugh, I. Rutherford
                    Mount Allison University 2001
File:               AngleControlPanel.java
                    (author: Larry Barowski, Auburn University, 9/3/96)
Description:	      An AngleControl, along with a label that allows the user to
                    manipulate the 3D viewpoint. Also includes buttons for
                    viewing a category in the XY plane, YZ plane, XZ plane.
*/

//import statements
import java.awt.Panel;
import java.awt.Button;
import java.awt.Event;
import java.awt.Label;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;




   class AngleControlPanel extends LPanel
      {
      public static int	ANGLE = 38793;
      public static int	DONE = 38794;
   
      private AngleControl angle_;
   
      public AngleControlPanel(int width, int height)
         {
	 								super();

										ActionListener acl = new ActionListener()
											{
												public void actionPerformed(ActionEvent e)
												{
													action(e, e.getActionCommand());
												}
											};
											
									 constraints.insets.top = constraints.insets.bottom = 0;
									 addLabel("Viewing Angles", 0, 0, 1.0, 0.0, 0, 0);
									 constraints.insets.top = constraints.insets.bottom = 0;
	         angle_ = new AngleControl(width, height);
									 addComponent(angle_, 0, 0, 1.0, 1.0, 3, 0);
									 constraints.insets.top = constraints.insets.bottom = 0;
									 addLabel("Plane:", 1, -1, 0.0, 0.0, 0, 0);
	         addButton("XY", 1, 0, 1.0, 0.0, 0, 0, acl);
	         addButton("XZ", 1, 0, 1.0, 0.0, 0, 0, acl);
	         addButton("YZ", 0, 0, 1.0, 0.0, 0, 0, acl);
				
										
				
									 finish();
         }
   
   
      public boolean handleEvent(Event event)
      {
         if(event.target instanceof AngleControl) {
            if(event.id == AngleControl.ANGLE) {
               DPoint	angles = (DPoint)event.arg;
               postEvent(new Event((Object)this, ANGLE,
                  new DPoint(angles.x, angles.y)));
               }
	    else if(event.id == AngleControl.DONE) {
               DPoint	angles = (DPoint)event.arg;
               postEvent(new Event((Object)this, DONE,
                  new DPoint(angles.x, angles.y)));
	    }
         }
         return super.handleEvent(event);
      }
   
   			
   
      public boolean action(ActionEvent event, String what)
         {
         if(event.getSource() instanceof JButton)
            {
            if(((String)what).equals("XY"))
               {
               angle_.setAngles(0.0, Math.PI / 2.0);
               postEvent(new Event((Object)this, DONE,
                  new DPoint(0.0, Math.PI / 2.0)));
               }
            else if(((String)what).equals("XZ"))
               {
               angle_.setAngles(0.0, 0.0);
               postEvent(new Event((Object)this, DONE,
                  new DPoint(0.0, 0.0)));
               }
            else if(((String)what).equals("YZ"))
               {
               angle_.setAngles(Math.PI / 2.0, 0.0);
               postEvent(new Event((Object)this, DONE,
                  new DPoint(Math.PI / 2.0, 0.0)));
               }
            }
         return true;
         }
      }