/// <summary>
/// Set the provided target as the current target.
/// </summary>
/// <param name="target">Reference to the new target.</param>
/// <param name="startTimer">Should a timer be started for handling sub menu showing.</param>
public void SetTarget(IContextMenuTarget target, bool startTimer)
{
// Only interested in a change of target
if (_target != target)
{
// Tell current target to reset drawing
if (_target != null)
{
_itemDelayTimer.Stop();
_target.ClearTarget();
_target = null;
}
// Shift the active view to the new target
ActiveView = target?.GetActiveView();
_target = target;
// Tell new target to draw as highlighted and start delay timer
if (_target != null)
{
_itemDelayTimer.Stop();
if (startTimer)
{
_itemDelayTimer.Start();
}
_target.ShowTarget();
}
}
}
/// <summary>
/// Set the provided target as the current target and it is already showing a sub menu
/// </summary>
public void SetTargetSubMenu(IContextMenuTarget target)
{
// Kill any running timer
_itemDelayTimer?.Stop();
// If the currently showing sub menu is not for the new target
if (_targetSubMenu != target)
{
// Do we know a target that was instructed to show any sub menu?
if (_targetSubMenu != null)
{
// Inform the same target to remove any showing sub menu
_targetSubMenu.ClearSubMenu();
_targetSubMenu = null;
}
// Remember the new sub menu target
_targetSubMenu = target;
}
// Tell current target to reset drawing
if (_target != target)
{
_target.ClearTarget();
_target = null;
}
_target = target;
// Tell new target to draw as highlighted and start delay timer
_target?.ShowTarget();
}
/// <summary>
/// Clear the provided target from being the current target.
/// </summary>
/// <param name="target"></param>
public void ClearTarget(IContextMenuTarget target)
{
// Is there a current target to clear down?
if (_target != null)
{
_itemDelayTimer.Stop();
_target.ClearTarget();
_target = null;
}
// With no target, we might still be showing a sub menu...
if (_targetSubMenu != null)
{
// We need to show the sub menu target as active
_target = _targetSubMenu;
_target.ShowTarget();
}
}
