/// <summary>
/// Rollback this operation (occurs when a user undoes the last edit).
/// </summary>
internal override void Undo()
{
base.OnRollback();
// If the offset was an offset point, get rid of reference to this op.
m_Offset.OnRollback(this);
// Cut the reference from the reference line to this op. And
// refs from any terminal lines.
if (m_RefLine != null)
{
m_RefLine.CutOp(this);
}
if (m_Term1 != null)
{
m_Term1.CutOp(this);
}
if (m_Term2 != null)
{
m_Term2.CutOp(this);
}
// Rollback the points at the end of the parallel (if they
// were created by this operation).
Rollback(CreatedStartPoint);
Rollback(CreatedEndPoint);
// Mark the parallel line as deleted.
Rollback(m_ParLine);
}
/// <summary>
/// Rollback this operation (occurs when a user undoes the last edit).
/// </summary>
internal override void Undo()
{
// Delete observed radius.
m_Radius.OnRollback(this);
// Cut direct refs made by this operation.
if (m_Center != null)
{
m_Center.CutOp(this);
}
// Rollback the base class (mark the circle for undo).
base.Undo();
}
/// <summary>
/// Rollback this operation (occurs when a user undoes the last edit).
/// </summary>
internal override void Undo()
{
base.OnRollback();
// Delete observations.
m_Direction.OnRollback(this);
m_Length.OnRollback(this);
// Mark sideshot point for deletion
Rollback(m_To);
// If we created a line, mark it as well
Rollback(m_Line);
}
/// <summary>
/// Rollback this operation (occurs when a user undoes the last edit).
/// </summary>
internal override void Undo()
{
base.OnRollback();
// Get rid of the observations.
m_Direction.OnRollback(this);
m_Distance.OnRollback(this);
// Cut direct refs made by this operation.
if (m_From != null)
{
m_From.CutOp(this);
}
// Undo the intersect point and any connecting lines
Rollback(m_To);
Rollback(m_DirLine);
Rollback(m_DistLine);
}
