Adding components to Interface dynamically after onInit()

[oskarsh]

Hey, I am working on a feature where you can list all samples that are located on your hard drive.

I want to add a new panel for every file (sample) the user has installed, however these samples will be served by an API so the samples are not known onInit()
I am getting this error:
Tried to add a component after onInit()

One possible solution I was thinking off was adding all the necessary panels on the onInit() and just render them empty. Then once they are needed I can fill them with the sample names. I could also add pagination if needed, however I was wondering if there is a better solution for my problem? I will also need to register callback listeners for mouse events for each panel.

Is there a good solution to dynamically add panels?

[d.healey]

The only controls that can be added outside of on init are child panels.

A better solution is probably just to have one panel and make its content dynamic.

[oskarsh]

@d-healey Thanks for the help! Really appreciate that. I will be using child panels.

When using only one Panel with dynamic content I would need to deal with getting the click position, mapping that to a file name also stuff like hover states get more tedious. In terms of performance wise however one panel would be better but since I am not rendering anything other than that file browser it should be fine.

[Christoph Hart]

@oskarsh Try using a viewport in table mode, this is exactly the intended use case for it.

Start reading here:

https://docs.hise.audio/scripting/scripting-api/scriptedviewport/index.html#settablecallback

until here:

https://docs.hise.audio/scripting/scripting-api/scriptedviewport/index.html#settablerowdata

[oskarsh]

@Christoph-Hart Amazing exactly what I was looking for, much cleaner than handling all the child panels! Thank you.

I've created a snippet for everyone who is interested using some minor custom LAF.

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