Bug 514751

Summary: Implement dynamic, multi-column metadata filtering with real-time item counts (Lightroom-style "Filter Bar")
Product: [Applications] digikam Reporter: 1234destiny1234 <1234destiny1234>
Component: Albums-FiltersAssignee: Digikam Developers <digikam-bugs-null>
Status: REPORTED ---    
Severity: wishlist CC: 1234destiny1234, caulier.gilles, metzpinguin
Priority: NOR    
Version First Reported In: 9.0.0   
Target Milestone: ---   
Platform: Microsoft Windows   
OS: Microsoft Windows   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: Filter Bar Lightroom classic like feature

Description 1234destiny1234 2026-01-17 18:15:44 UTC
Created attachment 188621 [details]
Filter Bar Lightroom classic like feature

I would like to request a new feature for the digiKam interface to improve workflow efficiency when navigating large libraries. Specifically, a dynamic "Metadata Filter Bar" similar to the implementation in Lightroom Classic. 
Proposed Functionality:
Multi-Column Layout: A set of 3–4 customizable columns (e.g., Camera, Lens, ISO, People) that can be toggled above the main image grid.
Real-Time Drill-Down: Selecting an item in one column (e.g., a specific "People" tag) should immediately update the other columns to show only the relevant data and counts for the currently filtered subset.
Visible Item Counts: Every metadata value in the filter list should display the count of matching images next to it (e.g., "Canon EOS R5 (142)").

Rationale:
While digiKam currently has powerful search and filtering sidebars, the Lightroom-style "Filter Bar" allows for a much faster, non-destructive "drill-down" experience without opening separate dialogs. This is highly beneficial for users migrating from other professional DAM software