AccountReportGrid.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2011 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.financials.report;
 
import org.turro.elephant.util.DecimalFormats;
import org.turro.i18n.I_;
import org.turro.math.Zero;
import org.turro.zkoss.grid.PagingGrid;
import org.turro.zkoss.label.LabelTypes;
import org.zkoss.zk.ui.Component;
import org.zkoss.zk.ui.ext.AfterCompose;
import org.zkoss.zul.*;
 
public class AccountReportGrid extends PagingGrid implements AfterCompose {
 
  private AccountReport report;
 
  public AccountReportGrid() {    
  }
 
  public AccountReport getReport() {
    return report;
  }
 
  public void setReport(AccountReport report) {
    this.report = report;
  }
 
  public void incrementPeriod(int amount) {
    report.getExistingPeriods().incrementPeriod(amount);
    getColumns().getChildren().clear();
    getRows().getChildren().clear();
    addColumns();
    addRows();
  }
 
  @Override
  public void afterCompose() {
    addColumns();
    addRows();
  }
 
  private void addColumns() {
    Columns cols = getColumns(true);
 
    Column col = new Column(I_.get("Item"));
    col.setWidth("200px");
    cols.appendChild(col);
 
    for(AccountReportPeriod period : report.getExistingPeriods().getCurrentPeriod(24)) {
      col = new Column(period.getYear() + "-" + period.getMonth());
      col.setAlign("right");
      col.setWidth("120px");
      col.setValue(period);
      cols.appendChild(col);
    }
    
  }
 
  private void addRows() {
    Rows rows = getRows(true);
    for(AccountReportItem item : report.getChildren()) {
      addItem(item, rows);
    }
    if(report.isShowTotal()) {
      addItem(report.getTotalItem(), rows);
    }
    for(AccountReportFormula formula : report.getFormulas()) {
      addFormula(formula, rows);
    }
  }
 
  private void addItem(AccountReportItem root, Rows rows) {
    Row row = new Row();
    for(Component col : getColumns().getChildren()) {
      if(((Column)col).getValue() == null) {
        row.appendChild(getLabelFor(root));
      } else {
        row.appendChild(getComponentFor(root.getPeriodFor((AccountReportPeriod) ((Column)col).getValue())));
      }
    }
    rows.appendChild(row);
    for(AccountReportItem item : root.getChildren()) {
      addItem(item, rows);
    }
    if(root.isShowTotal()) {
      addItem(root.getTotalItem(), rows);
    }
  }
  
  private void addFormula(AccountReportFormula formula, Rows rows) {
    Row row = new Row();
    for(Component col : getColumns().getChildren()) {
      if(((Column)col).getValue() == null) {
        row.appendChild(LabelTypes.getCaptionLabel(I_.get(formula.getLabel())));
      } else {
        row.appendChild(LabelTypes.getCaptionLabel(DecimalFormats.format(formula.getValue((AccountReportPeriod) ((Column)col).getValue()))));
      }
    }
    rows.appendChild(row);
  }
 
  private Component getComponentFor(AccountReportPeriod period) {
    if(period == null || Zero.near(period.getValue(), 0)) {
      return new Label("");
    } else if(period.getItem().isTotalItem() || period.getItem().isShowTotal()) {
      return LabelTypes.getCaptionLabel(DecimalFormats.format(period.getValue()));
    } else {
      return new Label(DecimalFormats.format(period.getValue()));
    }
  }
 
  private Component getLabelFor(AccountReportItem item) {
    Hbox hbox = new Hbox();
    hbox.setWidth("100%");
    hbox.setWidths("98%, 2%");
    Label l;
    if(item.isTotalItem() || item.isShowTotal() || item.isTitleItem()) {
      l = LabelTypes.getCaptionLabel(
              (item.isTotalItem() ? "Total " : "") +
              I_.get(item.getLabel()));
    } else {
      l = new Label(I_.get(item.getLabel()));
    }
    l.setStyle("padding-left:" + (getLevel(item) * 3) + "px");
    hbox.appendChild(l);
    if(item.getMode() != null) {
      hbox.appendChild(LabelTypes.getTinyLabel(I_.get(item.getMode().getLabel())));
    }
    return hbox;
  }
 
  private int getLevel(AccountReportItem item) {
    int level = 0;
    while(item.getParent() != null) {
      level++;
      item = item.getParent();
    }
    return level;
  }
 
}