Browser - Catalog filter - add dynamic filters

[user0]

XnViewMP 1.6.5 64bit
Windows11 (23H2), display resolution 3840x2160, win scaling 150%

Browser - Catalog filter
'Categories' always show all categories available, even if I have no files with them assigned, which is inconvenient.
Filter pane is the filter, not a place where you assign cats to your images (via dragging files into cats).

Suggestion

browser_catalog_filter_add_dynamic_filters.png

• rework Categories into dynamic filters
  show only cats from existing images in the folder according to Match settings (global/current/current+sub folders)

• add other dynamic filters (see Capture One 'Show/Hide Metadata Filters' menu)

• other stuff
  • Rating and Color labels
    stays untouched
    these are standard criteria, no reason to make them dynamic
  • Special items
    stays untouched, but has to be removed
    tbh, I really do not like existing approach (same as in ACDSee's) and prefer Capture One's
  • Albums
    stays untouched, but this is not the right place for them
    they are not filters (saved searches), they more like virtual folders and shall be inside Catalog/Libriary pane

Example

• Capture One
  CaptureOne_libriary_filter_pane.png

Related

• suggestions
  Browser - Catalog filter - add dynamic filters (current post)
  Browser - Catalog filter - improve filter
  Browser - add Catalog pane
  Browser - quick filter - change shortcuts

[xnview]

Not sure that we must change the behavior of 'Catalog filter', because if we have a dynamic filter, we can't choose a keywords that are not the current folder.
I'm thinking to add another panel which show filters that can be applied to current folder (formats, date, keywords, iso, ....)

[user0]

I'm thinking to add another panel which show filters that can be applied to current folder (formats, date, keywords, iso, ....)

I'm not sure if the new filter panel will clear things up.

It's probably better to rework existing "Catalog filter" panel into "Filter" panel that can switch between Folders/Catalog search (via switch or when you click in Folder/Catalog panel). For instance, if "Folder" is selected it works the same way as Quick filter from Filelist.

Check how handy Catalog+Filter panels work in CaptureOne (it has 30days trial).

Not sure that we must change the behavior of 'Catalog filter', because if we have a dynamic filter, we can't choose a keywords that are not the current folder.

The disadvantage of current approach - inability to limit scope of work to desired folder
as Catalog filter is not dynamic and always shows cats/counters from other folders (with limited amount of counters).

There should be no 'Match' setting at all, you should select a folder in the Folders/Catalog panel and work only with it.