 class VHomeControlCameraMenu:UIView
 {
     private weak var controller:CHome!
+    private weak var buttonTrigger:VHomeControlCameraMenuTrigger!
+    private weak var layoutButtonTriggerLeft:NSLayoutConstraint!
     private let kBackgroundHeight:CGFloat = 50
     private let kButtonBackWidth:CGFloat = 60
+    private let kButtonTriggerSize:CGFloat = 72
     
     convenience init(controller:CHome)
     {

            layoutButtonBackTop,
            layoutButtonBackBottom,
            layoutButtonBackLeft,
            layoutButtonBackWidth])
    }
    
    //MARK: actions

            view:buttonBack,
            constant:kButtonBackWidth)
        
        let layoutButtonTriggerTop:NSLayoutConstraint = NSLayoutConstraint.topToTop(
            view:buttonTrigger,
            toView:self)
        layoutButtonTriggerLeft = NSLayoutConstraint.topToTop(
            view:buttonTrigger,
            toView:self)
        let layoutButtonTriggerWidth:NSLayoutConstraint = NSLayoutConstraint.width(
            view:buttonTrigger,
            constant:kButtonTriggerSize)
        let layoutButtonTriggerHeight:NSLayoutConstraint = NSLayoutConstraint.height(
            view:buttonTrigger,
            constant:kButtonTriggerSize)
        
        addConstraints([
            layoutBackgroundHeight,
            layoutBackgroundBottom,
