Dynamic content of a group

Question

I would like to create content with elements that can be present or not depending on a special context.
I try this:
return Group
content: [
javafx.scene.shape.Rectangle
x:0
y:0
width:bind Width
height:bind Height
fill:javafx.scene.paint.Color.BLACK
if ( b )
ImageView
image: Image
url: sr.GetBackImagePath()
opacity:bind sr.GetBackImageOpacity()
where b is a varialbe initialized in the init section. It doesn't work. Somenone 's got any idea ?

Answer 1

I'd do something like this:
def rect : Rectangle = Rectangle {
width: bind width
height: bind height
fill: Color.BLACK
def imageView : ImageView =
if (b) {
ImageView
image: Image
url: sr.GetBackImagePath()
opacity:bind sr.GetBackImageOpacity()
} else { null }
Then the content of the group is simply:
content: [
rect
imageView
If the value of b is going to change, then you need 'bind if (b)'