Colapsable views

From SuperCollider wiki

Globally:

(
	w = Window.new;
	z = w.view.flow{ |view|
                  view.decorator.gap=0@0;

	Button(view,80@80).states_([["unhide"],["hide"]])
	.value_(1)
	.action_{ |but| if(but.value.booleanValue)
		{a[0..7].do(_.bounds= Rect(0,0,80,80)); z.reflowAll;
		//w.bounds = Rect(w.bounds.left, w.bounds.top,z.used.width,z.used.height)
		  }
		{a[0..7].do(_.bounds= Rect(0,0,0,0));  z.reflowAll;
		//w.bounds = Rect(w.bounds.left, w.bounds.top,z.used.width,z.used.height)
		 }
	};
	a = 15.collect{ var c = CompositeView(view,80@80);
		Slider2D( c,80@80 ).background_( Color.rand ).resize_(5);
		c };
	};
	w.front;
	w.bounds = Rect(w.bounds.left, w.bounds.top,z.used.width,z.used.height)


)

or individually:

(

   w = Window.new;
       //change the gaps and margins to see how they work
   z = w.view.flow{ |view|
       view.decorator.gap=0@0;
   a = 16.collect{ var c = CompositeView(view,80@100), sl;
     sl=  Slider2D( c,Rect(0,20,80,80) ).background_( Color.rand );
        b=SCButton(c,20@20).states_("x").action_{
                (c.bounds.width==20).if{
                    c.bounds=c.bounds.width_(80);
                    sl.visible_(true)}
                    {c.bounds=c.bounds.width_(20);
                    sl.visible_(false)};
               
                z.reflowAll;                
                };
        };
   };
   z.reflowAll;
   w.front;

)

Issues: gap is set to 0@0 therefore the views will have no spacing. This can be solved by making a margin with the CompositeView