RegexViewFilter.java :  » Java-3D » videso3d » fr » crnan » videso3d » ihm » components » Java Open Source

/*
 * This file is part of ViDESO.
 * ViDESO 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 3 of the License, or
 * (at your option) any later version.
 *
 * ViDESO 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 ViDESO.  If not, see <http://www.gnu.org/licenses/>.
 */

package fr.crnan.videso3d.ihm.components;

import java.util.regex.Pattern;

import javax.swing.tree.DefaultMutableTreeNode;

import fr.crnan.videso3d.Couple;
/**
 * Affiche les lments dont le nom correspond  l'expression rgulire.<br />
 * Garde affich les lments cochs.
 * @author Bruno Spyckerelle
 * @version 0.2
 */
public class RegexViewFilter implements ViewFilter {
  
  private Pattern pattern;
  
  public RegexViewFilter(String regex) {
    //si la regex ne contient que des lettres et des chiffres, on l'augmente un peu
    if(regex.split("\\s+").length <= 1 && regex.trim().matches("[a-zA-Z0-9]*")){
      pattern = Pattern.compile(".*"+regex.trim()+".*", Pattern.CASE_INSENSITIVE);
    } else if(regex.split("\\s+").length > 1 && regex.matches("[a-zA-Z0-9\\s+]*")){
      //si la regex contient que des lettres et des chiffres ainsi que des espaces
      String[] splittedRegex = regex.split("\\s+");
      String regex2 = "";
      for(int i=0;i<splittedRegex.length;i++){
        regex2 += ".*"+splittedRegex[i];
      }
      regex2 += ".*";
      pattern = Pattern.compile(regex2, Pattern.CASE_INSENSITIVE);
    } else {
      pattern = Pattern.compile(regex, Pattern.CASE_INSENSITIVE);
    }
  }
  
  @Override
  public boolean isShown(DefaultMutableTreeNode node) {
    return pattern.matcher(((Couple<String, Boolean>)node.getUserObject()).getFirst()).matches() /*|| ((Couple<String, Boolean>)node.getUserObject()).getSecond()*/;
  }

}