/// <summary>
/// Move the model systems inside of a project.
/// </summary>
/// <param name="currentIndex">The index to move</param>
/// <param name="newIndex">The new index for the model system</param>
/// <param name="error">If there is a failure this will contain a message</param>
/// <returns>True if successful, false otherwise</returns>
public bool MoveModelSystem(int currentIndex, int newIndex, ref string error)
{
lock (_EditingSessionsLock)
{
if (currentIndex < 0 | currentIndex >= _EditingSessions.Length)
{
error = "The model system to move is out of range!";
return(false);
}
if (newIndex < 0 | newIndex >= _EditingSessions.Length)
{
error = "The new position is out of range!";
return(false);
}
// if they are the same then success (we don't want to shortcut though if invalid data is given though)
if (currentIndex == newIndex)
{
return(true);
}
if (!Project.MoveModelSystems(currentIndex, newIndex, ref error))
{
return(false);
}
// move the indexes around
var temp = _EditingSessions[currentIndex];
if (currentIndex < newIndex)
{
// move everything up
Array.Copy(_EditingSessions, currentIndex + 1, _EditingSessions, currentIndex, newIndex - currentIndex);
_EditingSessions[newIndex] = temp;
}
else
{
// move everything down
Array.Copy(_EditingSessions, newIndex, _EditingSessions, newIndex + 1, currentIndex - newIndex);
_EditingSessions[newIndex] = temp;
}
return(true);
}
}
