Shapes.ns2

Newsqueak2
'Langexplr
'

class ShapesExperiment usingLib: platform = (
"A small experiment for using Hopscotch shape classes ."
|
	CanvasDependent = platform CanvasDependent.
	Presenter = platform HPresenter.
	Subject = platform Subject.
	EllipseShape = platform EllipseShape.
	Color = platform Color.
|
)
(

class ShapesExperimentSubject = Subject(
"Subject for shapes experiment"
|
	
|
)
('as yet unclassified'
createPresenter = (
	^ShapesExperimentPresenter new subject: self.
)

)

class ShapesExperimentPresenter = Presenter (
"A presenter for a small experiment of using shape classes"
|
|
)
('as yet unclassified'
controlPoint = (
	^ControlPoint new.
)

definition = (
	^ column: {
          canvas: {
               at: 10 @ 10 display: controlPoint. 
               at: 15 @ 10 display: controlPoint.
          }
      }
)

)

class ControlPoint = CanvasDependent(
"A class that represents a small point in the screen"
|
|
)
('as yet unclassified'
addVisualsTo: container = (
	container add: visual.
      updateLayout.
)

createVisual = (
     | s |
     s:: EllipseShape new size: 5@5 .
     s color: Color red.
     ^ s
)

))