PollVotesGrid.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2018 Lluis Turró Cutiller <http://www.turro.org/>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
package org.turro.polls;
 
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import org.turro.elephant.context.Application;
import org.turro.elephant.db.ElephantPU;
import org.turro.elephant.entities.db.Poll;
import org.turro.elephant.entities.db.PollVote;
import org.turro.i18n.I_;
import org.turro.util.CompareUtil;
import org.turro.zkoss.grid.DefaultRowRenderer;
import org.turro.zkoss.grid.PagingGrid;
import org.zkoss.zk.ui.event.Event;
import org.zkoss.zk.ui.event.EventListener;
import org.zkoss.zk.ui.event.Events;
import org.zkoss.zul.Column;
import org.zkoss.zul.Columns;
import org.zkoss.zul.Group;
import org.zkoss.zul.GroupsModelArray;
import org.zkoss.zul.Label;
import org.zkoss.zul.Row;
import org.zkoss.zul.Toolbarbutton;
 
public class PollVotesGrid extends PagingGrid {
 
  private Poll poll;
 
  public PollVotesGrid() {
    super();
    addColumns();
  }
 
  public void setPoll(Poll poll) {
    this.poll = poll;
    if(this.poll != null) {
      addRows(poll.getVotes());
    } else {
      addRows(Collections.EMPTY_LIST);
    }
  }
 
  private void addColumns() {
    Columns cols = new Columns();
    cols.setSizable(true);
    cols.setMenupopup("auto");
    appendChild(cols);
 
    //addDetailColumn();
 
    Column col = new Column(I_.get("Contact"));
    col.setHflex("1");
    cols.appendChild(col);
    col = new Column(I_.get("Vote"));
    col.setHflex("1");
    cols.appendChild(col);
    if(Application.getApplication().isInRole("dossier:delete")) {
      col = new Column();
      col.setWidth("25px");
      cols.appendChild(col);
    }
  }
 
  private void addRows(List votes) {
    
    setRowRenderer(new DefaultRowRenderer<PollVote>() {
      @Override
      protected void renderRow(Row row, PollVote value) {
        fillRow(row, value);
      }
 
      @Override
      protected void renderGroup(Group group, PollVote value) {
        group.setLabel(value.getPollData());
      }
    });
    
    setModel(new GroupsModelArray<PollVote, String, String, Object>(
      (PollVote[]) votes.toArray(new PollVote[0]),
      new Comparator<PollVote>() {
        @Override
        public int compare(PollVote o1, PollVote o2) {
          return CompareUtil.compare(o1.getPollData(), o2.getPollData());
        }
      }
    ) {
      @Override
      protected String createGroupFoot(PollVote[] groupdata, int index, int col) {
        int against = 0, abstention = 0, inFavor = 0;
        for(PollVote pv : groupdata) {
          if(pv.getVote() > 0) {
            inFavor++;
          } else if(pv.getVote() < 0) {
            against++;
          } else {
            abstention++;
          }
        }
        return String.format("%s: %d - %s: %d - %s: %d", 
                I_.get("Against"), against, 
                I_.get("Abstention"), abstention, 
                I_.get("In favor"), inFavor);
      }
    });
 
    setRowCount(votes.size());
  }
 
  private void fillRow(Row row, PollVote value) {
    row.appendChild(new Label(value.getContact().getName()));
    row.appendChild(new Label(String.valueOf(value.getVote())));
    if(Application.getApplication().isInRole("dossier:delete")) {
      Toolbarbutton delVote = new Toolbarbutton();
      delVote.setImage("/_zul/images/edit-delete.png");
      delVote.addEventListener(Events.ON_CLICK, new EventListener() {
        @Override
        public void onEvent(Event event) throws Exception {
          new ElephantPU().deleteObject(value);
          row.detach();
          Events.postEvent(new Event(Events.ON_CHANGE));
        }
      });
      row.appendChild(delVote);
    }    
  }
 
}