/// <summary>
/// Constructor for performing a sideshot from the currently selected point.
/// </summary>
/// <param name="cc">The container for any dialogs</param>
/// <param name="action">The action that initiated this command</param>
/// <exception cref="InvalidOperationException">If a specific point is not currently selected</exception>
internal RadialUI(IControlContainer cc, IUserAction action)
: base(cc, action)
{
PointFeature from = EditingController.SelectedPoint;
if (from == null)
throw new InvalidOperationException("You must initially select the point the sideshot radiates from.");
m_Dialog = null;
m_From = from;
}
public override void Dispose()
{
base.Dispose(); // removes any controls from container
if (m_Dialog!=null)
{
m_Dialog.Dispose();
m_Dialog = null;
}
}
/// <summary>
/// Constructor for doing an update.
/// </summary>
/// <param name="editId">The ID of the edit this command deals with.</param>
/// <param name="updcmd">The update command.</param>
internal RadialUI(IControlContainer cc, EditingActionId editId, UpdateUI updcmd)
: base(cc, editId, updcmd)
{
m_Dialog = null;
m_From = null;
}
/// <summary>
/// Starts the user interface (if any) for this command.
/// </summary>
/// <returns>True if command started ok.</returns>
internal override bool Run()
{
// Don't run more than once.
if (m_Dialog!=null)
throw new InvalidOperationException("RadialUI.Run - Command is already running.");
UpdateUI pup = this.Update;
if (pup!=null)
m_Dialog = new RadialControl(pup);
else
{
if (m_From==null)
{
RadialOperation recall = (RadialOperation)this.Recall;
m_From = recall.From;
}
m_Dialog = new RadialControl(this, m_From);
}
this.Container.Display(m_Dialog);
return true;
}