Darktable: Navigation helpers for zoomable lighttable

[l0f4r0]

Is your feature request related to a problem? Please describe.
It's sometimes difficult to take one's bearings in zoomable lighttable.

Describe the solution you'd like
Some markers/helpers/points of reference would be welcome: horizontal & vertical scrollbars, a rectangle showing the currently visible area (like in navigation panel)...

Alternatives
Zooming-out.

[Nilvus]

Zoomable lighttable is a sort of drag-and drop mode. To move photos, it's about maintaining clic and move the set of photos. Like you would do if you have a big paper of multiple photos to show one or the other in real darkroom. So scrollbars are not useful on this mode. But a rectangle showing the currently visible area could be a good idea. But where/how to add this on the UI without breaking consistency with other modes (where this will be not suitable) and avoid making the UI a mess? Quite hard.

Zooming-out is already possible, with mouse wheel or using number selector on footer toolbar.

[maboleth]

It's just getting used to. As @Nilvus said, it's not necessary for this mode to have any scrollbars.

Please close your issue if you're done.

[l0f4r0]

Actually, scrollbars suggestion was not only about moving the pictures set but also to work out where we are.
But it can be something else if there is a better suggestion like the "rectangle".

[Nilvus]

Actually, scrollbars suggestion was not only about moving the pictures set but also to work out where we are.

Just zoom-out (your alternative proposal) and you could see where you are. Adding a rectangle, as I said, have a big risk to make the UI a mess.

[AlicVB]

Sadly scrollbars won't work well in this case as the grid can go far to the left/right/... so the "handle" part of the scrollbar will not really represent the grid position. (not to say that scrollbars are a nightmare to implement)

Your "rectangle" proposition can be a solution, but I see 2 main drawbacks :

• as @Nilvus said : this won't be easy to implement with ui consistency
• When you have a very big collection (say ~1000 images) you will end up with a "column" of 30x180 px to represent the collection in your rectangle, which is quite small on the width side to see anything useful

I don't say it's not possible, just that it will not be straightforward to implement...

[github-actions[bot]]

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