/*
    * @(#)$Id: Win32TabletProxy.java 689 2009-07-22 00:10:27Z bsigner $
    *
    * Author       :   Michele Croci, mcroci@gmail.com
    *
    * Purpose      : 	Reads the tablet position.
    *
    * -----------------------------------------------------------------------
    *
   * Revision Information:
   *
   * Date             Who         Reason
   *
   * Oct 22, 2007     crocimi			Initial Release
   * 
   *
   * -----------------------------------------------------------------------
   *
   * Copyright 1999-2009 ETH Zurich. All Rights Reserved.
   *
   * This software is the proprietary information of ETH Zurich.
   * Use is subject to license terms.
   * 
   */
  
  
  package org.ximtec.igesture.io.wacom;
  
  
  
  import java.awt.Point;
  import java.util.logging.Logger;
  
  import org.ximtec.igesture.io.wacom.Wintab32.ORIENTATION;
  import org.ximtec.igesture.io.wacom.Wintab32.PACKET;
  import org.ximtec.igesture.io.wacom.Wintab32.ROTATION;
  
  
  
  
  
  /**
   * Reads the mouse position.
   * 
   * @version 1.0, Oct 2007
   * @author Michele Croci
   *
   */
  public class Win32TabletProxy {
  
     private static final Logger LOGGER = Logger.getLogger(Win32TabletProxy.class
           .getName());
  
  
     
     private WacomUtils tabletUtils =  new WacomUtils();
     private PACKET lastPacket = null;
  
     public Win32TabletProxy(){
  	  LOGGER.info("Init..."); 
        tabletUtils.open();
     }
     
     public boolean isExtraDataSupported(){
  	   return tabletUtils.isDataSupported(14)||tabletUtils.isDataSupported(16)||
  	   tabletUtils.isDataSupported(17)||tabletUtils.isDataSupported(18);
     }
     
     /**
      * Get the next packet data from the tablet Pc
      * 
      */
     public void getNextPacket() {
  		   lastPacket = tabletUtils.getOnePacket();
     } 
     
     /**
      * Return the last readed packet
      * 
      */
     public PACKET getLastPacket() {
  
             return lastPacket;
     } 
     
     /**
      * Returns the pressure of the pen on the table 
      * 
      * @return the timestamp
      */
     public long getTimeStamp() {
  	   if (lastPacket!=null) //just in case
  		    return lastPacket.pkTime;
  	   else
  		   return 0;
     } 
     
  
  
    /**
     * Returns the pressure of the pen on the table 
     * 
     * @return the pressure (min =0, max = 1023)
     */
    public int getPressure() {
 	   if (lastPacket!=null)
 	        return lastPacket.pkNormalPressure;
 	   else
 		   return -1;
    } 
    
    /**
     * Returns the tangent pressure of the pen on the table 
     * 
     * @return the tangent pressure 
     */
    public int getTangentPressure() {
 	   if (lastPacket!=null)
 	      return lastPacket.pkTangentPressure;
 	   else
 		   return -1;
    } 
    
    /**
     * Returns the z-value of the cursor position
     * 
     * @return z-value
     */
    public int getzval() {
 	   if (lastPacket!=null)
 	         return lastPacket.pkZ;
 	   else
 		   return -1;
    } 
    
    
    
    /**
     * Returns the orientation of the pen on the table 
     * 
     * @return orientation (altitude, azimuth, twist)
     */
    public ORIENTATION getOrientation() {
 	   if (lastPacket!=null)
 	      return lastPacket.pkOrientation;
 	    else
 	         return null;
    } 
    
    
    /**
     * Returns the rotation of the pen on the table 
     * 
     * @return rotation (pitch, roll, yaw)
     */
    public ROTATION getRotation() {
 	   if (lastPacket!=null){ 
 		      return lastPacket.pkRotation;
 		   }else
 			   return null;
    } 
    
    
    /**
     * Returns the location of the tablet cursor on the screen.
     * 
     * @return the location of the tablet cursor on the screen.
     */
    public Point getLastCursorLocation() {
 	   if (lastPacket!=null) //just in case
 		   return new Point(lastPacket.pkX, lastPacket.pkY);
 	   else
 		   return null;
    } 
    
    
    public int buttonPressed(){
       return lastPacket.pkButtons;
    }
 
 }