/**
   * Creates the histogram using data accumulated thus far.
   *
   * @param oLegend Legend for this chart.
   * @param sChartTitle Title for this chart.
   * @return The new chart window.
   * @throws sortie.data.simpletypes.ModelException Passing through underlying exceptions.
   */
  ModelInternalFrame drawChart(Legend oLegend, String sChartTitle) throws ModelException {
    int i;

    ModelHistogramDataset oAdjustedDataset = updateForVisible(oLegend);

    // Make the chart
    m_oChartFrame =
        DataGrapher.drawHistogram(
            oAdjustedDataset, m_sLabel, "Total Number", sChartTitle, oLegend, this);

    // Add the extra controls to the top of the histogram window
    JPanel jLine1Controls = new JPanel(new FlowLayout(FlowLayout.LEFT));

    // Bins boxes
    JLabel jTemp = new JLabel("Number of bins:");
    jTemp.setFont(new sortie.gui.components.SortieFont());
    jLine1Controls.add(jTemp);

    JTextField jNumBins = new JTextField(String.valueOf(m_iNumBins));
    jNumBins.setFont(new SortieFont());
    jNumBins.setPreferredSize(
        new java.awt.Dimension(50, (int) jNumBins.getPreferredSize().getHeight()));
    jNumBins.setName(NUMBER_BINS_NAME);
    jLine1Controls.add(jNumBins);

    jTemp = new JLabel("Bin size:");
    jTemp.setFont(new sortie.gui.components.SortieFont());
    jLine1Controls.add(jTemp);

    JTextField jBinSize = new JTextField(m_jFormat.format(m_fBinSize));
    jBinSize.setFont(new SortieFont());
    jBinSize.setPreferredSize(
        new java.awt.Dimension(50, (int) jBinSize.getPreferredSize().getHeight()));
    jBinSize.setName(BIN_SIZE_NAME);
    jLine1Controls.add(jBinSize);

    // Button to change
    JButton jButton = new JButton("Change");
    jButton.setFont(new sortie.gui.components.SortieFont());
    jButton.setActionCommand("UpdateBins");
    jButton.addActionListener(this);
    jLine1Controls.add(jButton);

    // Checkbox for logarithmic axis
    JCheckBox jCheckBox = new JCheckBox("Use Logarithmic Axis", getUseLogarithmicAxis());
    jCheckBox.setFont(new SortieFont());
    jCheckBox.setName("log_checkbox");
    jCheckBox.addActionListener(this);
    jLine1Controls.add(jCheckBox);

    // Checkbox for showing total bars
    jCheckBox = new JCheckBox("Show Totals", m_bShowTotal);
    jCheckBox.setFont(new sortie.gui.components.SortieFont());
    jCheckBox.setName("total_checkbox");
    jCheckBox.addActionListener(this);
    jLine1Controls.add(jCheckBox);

    JPanel jLine2Controls = new JPanel(new FlowLayout(FlowLayout.LEFT));
    jTemp = new JLabel("Min value:");
    jTemp.setFont(new sortie.gui.components.SortieFont());
    jLine2Controls.add(jTemp);
    m_jMinDatasetValue.setFont(new sortie.gui.components.SortieFont());
    if (m_bIsInt) m_jMinDatasetValue.setText(String.valueOf((int) m_fDatasetMin));
    else m_jMinDatasetValue.setText(String.valueOf(m_jFormat.format(m_fDatasetMin)));
    jLine2Controls.add(m_jMinDatasetValue);
    jTemp = new JLabel("Max value:");
    jTemp.setFont(new sortie.gui.components.SortieFont());
    jLine2Controls.add(jTemp);
    m_jMaxDatasetValue.setFont(new sortie.gui.components.SortieFont());
    if (m_bIsInt) m_jMaxDatasetValue.setText(String.valueOf((int) m_fDatasetMax));
    else m_jMaxDatasetValue.setText(String.valueOf(m_jFormat.format(m_fDatasetMax)));
    jLine2Controls.add(m_jMaxDatasetValue);

    // Remove the chart, which is the content panel
    org.jfree.chart.ChartPanel jChart = null;
    for (i = 0; i < m_oChartFrame.getContentPane().getComponentCount(); i++) {
      if (m_oChartFrame.getContentPane().getComponent(i) instanceof org.jfree.chart.ChartPanel) {
        jChart = (org.jfree.chart.ChartPanel) m_oChartFrame.getContentPane().getComponent(i);
      }
    }

    JPanel jControls = new JPanel();
    jControls.setLayout(new BoxLayout(jControls, BoxLayout.PAGE_AXIS));
    jControls.add(jLine1Controls);
    jControls.add(jLine2Controls);

    // Recreate the content pane with the controls and the chart
    JPanel jContentPanel = new JPanel(new java.awt.BorderLayout());
    jContentPanel.setLayout(new java.awt.BorderLayout());
    jContentPanel.add(jControls, java.awt.BorderLayout.NORTH);
    jContentPanel.add(jChart, java.awt.BorderLayout.CENTER);

    m_oChartFrame.setContentPane(jContentPanel);

    return m_oChartFrame;
  }