/trunk/libraries/libIverUtiles/src/com/iver/utiles/ExtentsHistory.java - | gvSIG desktop 1 - gvSIG

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       /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
+       *
        * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
+       *
        * This program is free software; you can redistribute it and/or
        * modify it under the terms of the GNU General Public License
        * as published by the Free Software Foundation; either version 2
        * of the License, or (at your option) any later version.
+       *
        * This program is distributed in the hope that it will be useful,
        * but WITHOUT ANY WARRANTY; without even the implied warranty of
        * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        * GNU General Public License for more details.
+       *
        * You should have received a copy of the GNU General Public License
        * along with this program; if not, write to the Free Software
        * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.
+       *
        * For more information, contact:
+       *
        *  Generalitat Valenciana
        *   Conselleria d'Infraestructures i Transport
        *   Av. Blasco Ib??ez, 50
        *   46010 VALENCIA
        *   SPAIN
+       *
        *      +34 963862235
        *   gvsig@gva.es
        *      www.gvsig.gva.es
+       *
        *    or
+       *
        *   IVER T.I. S.A
        *   Salamanca 50
        *   46005 Valencia
        *   Spain
+       *
        *   +34 963163400
        *   dac@iver.es
        */
       package com.iver.utiles;
       import java.awt.geom.Rectangle2D;
       /**
        * Clase que representa un array circular de rect?ngulos
+       *
        * @author Fernando Gonz?lez Cort?s
        */
       public class ExtentsHistory {
           private int NUMREC;
           private Rectangle2D.Double[] extents;
           private int num = 0;
           /**
            * Creates a new ExtentsHistory object.
            */
           public ExtentsHistory() {
               NUMREC = 4;
               extents = new Rectangle2D.Double[NUMREC];
+          }
           /**
            * Creates a new ExtentsHistory object.
+           *
            * @param numEntries Numero de entradas que se guardan en el historico de
            *        rect?ngulos, por defecto 20
            */
           public ExtentsHistory(int numEntries) {
               NUMREC = numEntries;
+          }
           /**
            * Pone un nuevo rect?ngulo al final del array
+           *
            * @param ext Rect?ngulo que se a?ade al hist?rico
            */
           public void put(Rectangle2D.Double ext) {
               if ((ext != null) && ((num < 1) || (ext != extents[num - 1]))) {
                   if (num < (NUMREC)) {
                       extents[num] = ext;
                       num = num + 1;
                   } else {
                       for (int i = 0; i < (NUMREC - 1); i++) {
                           extents[i] = extents[i + 1];
+                      }
                       extents[num - 1] = ext;
+                  }
+              }
+          }
           /**
            * Devuelve true si hay alg?n rect?ngulo en el hist?rico
+           *
            * @return true o false en caso de que haya o no haya rect?ngulos
            */
           public boolean hasPrevious() {
               return num > 0;
+          }
           /**
            * Obtiene el ?ltimo rect?ngulo que se a?adi? al hist?rico
+           *
            * @return Ultimo rect?ngulo a?adido
            */
           public Rectangle2D.Double get() {
               Rectangle2D.Double ext = extents[num - 1];
               return ext;
+          }
           /**
            * Devuelve el ?ltimo rect?ngulo del hist?rico y lo elimina del mismo
+           *
            * @return Ultimo rect?ngulo a?adido
            */
           public Rectangle2D.Double removePrev() {
               Rectangle2D.Double ext = extents[num - 1];
               num = num - 1;
               return ext;
+          }
+      }
       /*
          public class Extents{
                  private final int NUMREC=20;
                  private Rectangle2D.Double[] extents;
                  private int num=0;
                  public Extents(){
                    extents = new Rectangle2D.Double[NUMREC];
+                 }
                  public void put (Rectangle2D.Double ext){
                  if((ext!=null)&&((num<1)||(ext!=extents[num-1]))){
                   if (num<(NUMREC)){
                    extents[num]=ext;
                    num=num+1;
                   }else{
                           for (int i=0;i<(NUMREC-1);i++){
                                   extents[i]=extents[i+1];
+                          }
                           extents[num-1]=ext;
+                  }
+                 }
+                 }
                  public Rectangle2D.Double get(){
                          if(num>1){
                          Rectangle2D.Double ext = extents[num-2];
                            return ext;
+                         }
                    return null;
+                 }
                  public Rectangle2D.Double getPrev(){
                                  if(num>1){
                                  Rectangle2D.Double ext = extents[num-2];
                                  num=num-1;
                                  return ext;
+                                 }
                            return null;
+                         }
+           }
        */