Package org.pentaho.plugin.jfreereport.reportcharts

Source Code of org.pentaho.plugin.jfreereport.reportcharts.BarChartExpression

/*
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* 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 Lesser General Public License for more details.
*
* Copyright (c) 2006 - 2009 Pentaho Corporation..  All rights reserved.
*/

package org.pentaho.plugin.jfreereport.reportcharts;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.category.BarRenderer;
import org.jfree.chart.renderer.category.CategoryItemRenderer;
import org.jfree.chart.renderer.category.StackedBarRenderer;
import org.jfree.data.category.CategoryDataset;
import org.pentaho.plugin.jfreereport.reportcharts.backport.FormattedCategoryAxis;
import org.pentaho.plugin.jfreereport.reportcharts.backport.FormattedCategoryAxis3D;

/**
* This class is for backward compatibility with previous build of the
* expression. Instead of using this class, use CategoricalChartExpression.
*
* @author mbatchel
*/
public class BarChartExpression extends StackedCategoricalChartExpression
{
  private static final long serialVersionUID = 7082583397390897215L;
  private Double maxBarWidth;
  private boolean stackedBarRenderPercentages;
  private Double itemMargin;

  public BarChartExpression()
  {
  }

  public Double getItemMargin()
  {
    return itemMargin;
  }

  public void setItemMargin(final Double itemMargin)
  {
    this.itemMargin = itemMargin;
  }

  public Double getMaxBarWidth()
  {
    return maxBarWidth;
  }

  public void setMaxBarWidth(final Double value)
  {
    maxBarWidth = value;
  }

  public boolean isStackedBarRenderPercentages()
  {
    return stackedBarRenderPercentages;
  }

  public void setStackedBarRenderPercentages(final boolean value)
  {
    stackedBarRenderPercentages = value;
  }

  public JFreeChart computeCategoryChart(final CategoryDataset categoryDataset)
  {
    final PlotOrientation orientation = computePlotOrientation();

    final JFreeChart chart;
    if (isThreeD())
    {
      if (isStacked())
      {
        chart = ChartFactory.createStackedBarChart3D(computeTitle(),
            getCategoryAxisLabel(), getValueAxisLabel(),
            categoryDataset, orientation, isShowLegend(),
            false, false);
      }
      else
      {
        chart = ChartFactory.createBarChart3D(computeTitle(),
            getCategoryAxisLabel(), getValueAxisLabel(), categoryDataset,
            orientation, isShowLegend(), false, false);
      }
      chart.getCategoryPlot().setDomainAxis(new FormattedCategoryAxis3D(getCategoryAxisLabel(),
          getCategoricalAxisMessageFormat(), getRuntime().getResourceBundleFactory().getLocale()));
    }
    else
    {
      if (isStacked())
      {
        chart = ChartFactory.createStackedBarChart(computeTitle(),
            getCategoryAxisLabel(), getValueAxisLabel(),
            categoryDataset, orientation, isShowLegend(),
            false, false);
      }
      else
      {
        chart = ChartFactory.createBarChart(computeTitle(),
            getCategoryAxisLabel(), getValueAxisLabel(), categoryDataset,
            orientation, isShowLegend(), false, false);
      }
      chart.getCategoryPlot().setDomainAxis(new FormattedCategoryAxis(getCategoryAxisLabel(),
          getCategoricalAxisMessageFormat(), getRuntime().getResourceBundleFactory().getLocale()));
    }

    final CategoryPlot plot = (CategoryPlot) chart.getPlot();
    configureLogarithmicAxis(plot);

    return chart;
  }

  protected void configureChart(final JFreeChart chart)
  {
    super.configureChart(chart);
    final CategoryPlot cpl = chart.getCategoryPlot();
    final CategoryItemRenderer renderer = cpl.getRenderer();
    final BarRenderer br = (BarRenderer) renderer;
    br.setDrawBarOutline(isChartSectionOutline());
    if (maxBarWidth != null)
    {
      br.setMaximumBarWidth(maxBarWidth.doubleValue());
    }

    if (itemMargin != null)
    {
      br.setItemMargin(itemMargin.doubleValue());
    }
   
    if ((isStacked()) && stackedBarRenderPercentages && (br instanceof StackedBarRenderer))
    {
      final StackedBarRenderer sbr = (StackedBarRenderer) br;
      sbr.setRenderAsPercentages(true);
    }
  }

  /**
   * @return
   * @deprecated Use the property chartSectionOutline instead.
   */
  public boolean isDrawBarOutline()
  {
    return isChartSectionOutline();
  }

  /**
   * @param value
   * @deprecated Use the property chartSectionOutline instead.
   */
  public void setDrawBarOutline(final boolean value)
  {
    setChartSectionOutline(value);
  }
}
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