public void Dispose()
        {
            if (m_fontNote != null)
            {
                m_fontNote.Dispose();
                m_fontNote = null;
            }

            if (m_rgPlots != null)
            {
                m_rgPlots.Dispose();
                m_rgPlots = null;
            }

            if (m_style != null)
            {
                m_style.Dispose();
                m_style = null;
            }

            if (m_colLabelBrushes != null)
            {
                m_colLabelBrushes.Dispose();
                m_colLabelBrushes = null;
            }

            if (m_colLineBrushes != null)
            {
                m_colLineBrushes.Dispose();
                m_colLineBrushes = null;
            }

            if (m_colLinePens != null)
            {
                m_colLinePens.Dispose();
                m_colLinePens = null;
            }

            if (m_colGridBrushes != null)
            {
                m_colGridBrushes.Dispose();
                m_colGridBrushes = null;
            }
        }