/// <summary>
/// Ensures all class data has initial values (for use by constructors)
/// </summary>
void Zero()
{
m_DialFrom = null;
m_DialTo = null;
m_DialPath = null;
m_DialUp = null;
m_From = null;
m_To = null;
}
/// <summary>
/// Stops the to-point sub-dialog.
/// </summary>
void StopTo()
{
if (m_DialTo != null)
{
m_To = m_DialTo.Point;
m_DialTo.Dispose();
m_DialTo = null;
}
if (m_To!=null)
m_To.Draw(ActiveDisplay, Color.Cyan);
}
/// <summary>
/// Stops the from-point sub-dialog.
/// </summary>
void StopFrom()
{
if (m_DialFrom != null)
{
m_From = m_DialFrom.Point;
m_DialFrom.Dispose();
m_DialFrom = null;
}
if (m_From!=null)
m_From.Draw(ActiveDisplay, Color.DarkBlue);
}
/// <summary>
/// Starts the to-point sub-dialog.
/// </summary>
void StartTo()
{
m_DialTo = new GetPointForm(this, "Finishing Point", Color.Cyan, true);
m_DialTo.Show();
m_DialTo.OnSelectPoint(m_To, false);
}
/// <summary>
/// Starts the from-point sub-dialog.
/// </summary>
void StartFrom()
{
m_DialFrom = new GetPointForm(this, "Starting Point", Color.DarkBlue, false);
m_DialFrom.Show();
m_DialFrom.OnSelectPoint(m_From, false);
}
/// <summary>
/// Gets rid of any active sub-dialog(s).
/// </summary>
void KillDialogs()
{
if (m_DialFrom!=null)
{
m_DialFrom.Dispose();
m_DialFrom = null;
}
if (m_DialTo!=null)
{
m_DialTo.Dispose();
m_DialTo = null;
}
if (m_DialPath!=null)
{
m_DialPath.Dispose();
m_DialPath = null;
}
if (m_DialUp!=null)
{
m_DialUp.Dispose();
m_DialUp = null;
}
}