Calling a super class's constructor

Questions
1

Ok, let’s say I want to make a subclass of View, so I write a class method to do constructor stuff:

*new{|parent, bounds, leftPanel, rightPanel, dominant=\left|
	^super.new(parent, bounds).initPanes(nil, nil, leftPanel, rightPanel, dominant);
}

And this totally does not work. How do I tell it to run the super constructor first??

2

That looks ok to me in the sense that it’s the same pattern as, for example, the code for Checkbox:

CheckBox : View {

	*qtClass { ^'QcCheckBox' }

	*new{ |parent,bounds,text|
		^super.new(parent,bounds).init(text)
	}

	init{ |text|
		this.string_(text)
	}
. . .

Can you explain more about what you mean by “does not work”? Did it not compile, or did you get an error when running it?
Best,
Paul

3

If I comment out all of the contents of initPanes, it should just act like a completely normal View class.
However, trying to use it as a View with the following code:

(
j = SplitHPanel().background_(Color.rand);
j.toFrontAction = { "Something should have happened".postln};
j.front
)

Does nothing. No errors are generated, but it also doesn’t open a window or post anything to the post window.

I’m guessing there’s something very fiddly that would fix it, but I just can’t find it…

4

It worked fine here: I made this test class:

TestViewClass : View {

	*new{|parent, bounds, leftPanel, rightPanel, dominant=\left|
		^super.new(parent, bounds).initPanes(nil, nil, leftPanel, rightPanel, dominant);
	}
	initPanes{
	}
}

I put it in the extensions folder, recompiled and ran this:

(
j = TestViewClass().background_(Color.rand);
j.toFrontAction = { "Something should have happened".postln};
j.front
)

It showed the window as expected and posted this:

-> a TestViewClass
Something should have happened

So your error must be due to something else.
Perhaps you could show the full text of your class.
Best,
Paul

5

I’d suspect the initPanes isn’t returning this.

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