Thanks (belatedly) for this tip, Doru.

I have a follow on question. Is there an easy way to have the GTInspector include _all_ views for a sub-object?

Like, I have a wrapped object that is a proxy to the real object, and when I inspect the wrapper I would like to automatically see all the views for the real object?

Just now I am going into Raw and selecting the real object but this is a bit laborious. I also want to be able to disable the Raw tab for users who are not Smalltalk hackers.

On 8 September 2017 at 11:46, Tudor Girba <> wrote:

The way you make presentations reusable in other contexts id by making gtInspectorFooIn: display self. Something like this

SomeOtherClass>>#gtInspectorFooIn: ccomposite
<gtInspectorPresentationOrder: 5>
composite text display: [ :ignoredObject | self … ] …

So, the display block depends on self and not on the object you get in the block.

Like this, when you do:

SomeClass>>gtInspectorFooIn: composite
   <gtInspectorPresentationOrder: 5>
   otherObject gtInspectorFooIn: composite

You will actually apply the inner presentation on otherObject (instance of SomeOtherClass), rather than on the current object (instance of SomeClass).

Does it make sense?


On Sep 8, 2017, at 11:02 AM, Luke Gorrie <> wrote:

On 7 August 2017 at 11:02, Andrei Chis <> wrote:

On Mon, Aug 7, 2017 at 9:44 AM, Luke Gorrie <> wrote:

What is the best way for an object to delegate one or more GTInspector views to other objects?

I have been using a pattern like this:

gtInspectorFooIn: composite
   <gtInspectorPresentationOrder: 5>
   otherObject gtInspectorFooIn: composite

This is indeed the normal way of delegating the construction of a view to another object. Just if otherObject can be nil it might be better to use an accessor that ensures the object is present. If that's not an option then either add a nil check or use a dynamic presentation.

Here is the part that I am missing: How do I tell the Inspector that the *value* to inspect is otherObject instead of self?

I mean, it seems like this code constructs the GLMPresentation for otherObject but then applies it to self, which may not be compatible.

Maybe I should add 'display: [ otherObject ]' ?

but I am wondering whether there is a better way, and also whether this method is valid (I've occasionally seen odd behavior, like Inspector panes disappearing after I "Refresh", and I wonder if I could be somehow confusing the model or if this is not relevant.)

Should not be relevant. But there can always be a bug. If you find a reproducible case that would help.

I have not finally tracked down this issue yet but it seems to be related to error cases e.g. pressing "Abandon" in the debugger. Symptom is that the first pane of the inspector mysteriously disappears. I will open an issue when I know how to reproduce it.

Moose-dev mailing list


"Value is always contextual."

Moose-dev mailing list