public void Update( )
{
IEnumerable <ItemEditor> allSelectedEditors = selectedEditors( ).ToList( );
Vector2 newpos = MouseStatus.WorldPosition - allSelectedEditors.First().ItemProperties.Position;
float deltaTheta = (float)Math.Atan2(_canvas.GrabPoint.Y, _canvas.GrabPoint.X) - (float)Math.Atan2(newpos.Y, newpos.X);
int i = 0;
foreach (ItemEditor eachSelectedItem in allSelectedEditors)
{
if (eachSelectedItem.CanRotate( ))
{
eachSelectedItem.Rotation = _canvas.RotationsBeforeUserInteraction[i] - deltaTheta;
if (KeyboardStatus.IsKeyDown(Keys.LeftControl))
{
eachSelectedItem.Rotation = (float)Math.Round(eachSelectedItem.Rotation / MathHelper.PiOver4)
* MathHelper.PiOver4;
}
i++;
}
IoC.Model.NotifyChanged(allSelectedEditors);
}
if (MouseStatus.IsNewMiddleMouseButtonRelease( ) || KeyboardStatus.IsNewKeyRelease(Keys.D2))
{
_canvas.SetModeToIdle( );
ObjectFactory.GetInstance <IMemento>().EndCommand( );
}
return;
}
