Refactor: Port spreadsheet data set to UI tree view

This patch removes a bunch of specific code for drawing the spreadsheet
data set region, which was an overly specific solution for a generic UI.
Nowadays, the UI tree view API used for asset browser catalogs is a much
better way to implement this behavior.

To make this possible, the tree view API is extended in a few ways.
Collapsibility can now be turned off, and whether an item should
be active is moved to a separate virtual function.

The only visual change is that the items are now drawn in a box,
just like the asset catalog.

Differential Revision: https://developer.blender.org/D13198

1 files changed, 6 insertions, 3 deletions

diff --git a/source/blender/editors/space_spreadsheet/spreadsheet_intern.hh b/source/blender/editors/space_spreadsheet/spreadsheet_intern.hh
index 8b050c2e69b..e62835d5792 100644
--- a/source/blender/editors/space_spreadsheet/spreadsheet_intern.hh
+++ b/source/blender/editors/space_spreadsheet/spreadsheet_intern.hh
@@ -37,6 +37,7 @@ struct SpaceSpreadsheet_Runtime {
 };
 
 struct bContext;
+struct ARegionType;
 
 void spreadsheet_operatortypes(void);
 void spreadsheet_update_context_path(const bContext *C);
@@ -45,6 +46,8 @@ Object *spreadsheet_get_object_eval(const SpaceSpreadsheet *sspreadsheet,
 
 namespace blender::ed::spreadsheet {
 GeometrySet spreadsheet_get_display_geometry_set(const SpaceSpreadsheet *sspreadsheet,
-                                                 Object *object_eval,
-                                                 const GeometryComponentType used_component_type);
-}
+                                                 Object *object_eval);
+
+void spreadsheet_data_set_region_panels_register(ARegionType &region_type);
+
+}  // namespace blender::ed::spreadsheet