Hi Johan,

On Apr 23, 2014, at 15:48, Johan Fabry jfabry@dcc.uchile.cl wrote:

Hola,

for my visualization, I want to be able to change the color of a shape after the view has been opened, depending on a given condition. So I wrote something like below, where the instvar lastview holds the view that was opened.

highlightNode: aName |node| node := lastview elementFromModel: aName. node isNil ifFalse: [ node shape color: (Color red). lastview signalUpdate.]

Sadly, I do not see the shape changing color to red. What can I do to have this working?

You could try by doing:

highlightNode: aName |node| node := lastview elementFromModel: aName. node isNil ifFalse: [ node shape color: (Color red). node update].

Here’s a small example:

|node lastview| lastview := RTView new. lastview addAll: (RTBox elementsOn: #(1 2 3 4)). node := lastview elementFromModel: 3. node isNil ifFalse: [ node shape color: (Color red). node update.]. RTHorizontalLineLayout on: lastview elements. lastview open.

Does it help you?

Cheers, Pablo

Thanks in advance,

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Johan Fabry - http://pleiad.cl/~jfabry PLEIAD lab - Computer Science Department (DCC) - University of Chile

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