Tools: Implement "Dependency" or "Links" view (e.g. in Loader)

[BigRoy]

Is your feature request related to a problem? Please describe.

The "Dependency" loader will get more useful after ynput/OpenPype#3629 and ynput/OpenPype#3633. However, to easily trace from a selected version I'd recommend implementing some additional changes.

The current state:

The above was the state in OpenPype - In AYON this is currently gone since a rewrite occurred of the Loader tool. This issue is to track the request to add it again, and preferably in a better fashion than before.

Describe the solution you'd like

• Allow to identify the Link type, e.g. color code, icon or tooltip based on whether the link is "generative" or "reference"
• Allow to double click to 'go to' in the Loader. So that your asset+subset+version selection in the Loader changes to that Input/Output.
• Potentially even "visualize" whether that 'input version' used is the latest version of that subset. So that you could select a PUBLISH and see from its Inputs that it's not publish using the latest input version.

Describe alternatives you've considered

Of course better tooling to visualize the dependencies in general would be even better, like a node graph (e.g. ReactFlow) or even just showing the recursive inputs/outputs in a hierarchy would be useful, like this example of what we had used in one of our productions before OpenPype.

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It's good to be aware that on the web frontend there's a similar feature in the "Node Graph" addon (in beta, low priority backlog) - as Milan mentioned here

[cuID:OP-3715]

[BigRoy]

Came up on Discord here:

I commented these 'reference' links:

In OpenPype there was the Dependency Links shown in the Loader tool but it's been removed from AYON when rewriting large parts of the UIs (plus the UI sucked a bit in OpenPype). I think it still has merit to have something nearby somewhere.

Reference of links in loader: https://github.com/ynput/OpenPype/pull/3629#issuecomment-1209153823 + https://github.com/ynput/OpenPype/pull/3629#issuecomment-1243870103

I had this tiny widget in avalon: https://github.com/BigRoy/core/blob/acre/avalon/tools/representationinput.py which was basically the screenshot shown here: https://github.com/getavalon/core/issues/395#issuecomment-501749753 which we actually ended up using in a project back then, more details here: https://github.com/getavalon/core/issues/395#issuecomment-778078006 with the gist linking to the UI.

Originating from these Avalon issues at the time: https://github.com/getavalon/core/issues/395

It wouldn't be too hard to transfer these to AYON codebase since the data is relatively similar, just a different query.

In one of those threads I also had a NodeGraphQt demo, here: https://github.com/getavalon/core/issues/395#issuecomment-518670047