From 05b125f399ced4cf8f60c069bcf1acdfe3447f43 Mon Sep 17 00:00:00 2001
From: Julian Eisel <julian@blender.org>
Date: Thu, 2 May 2024 12:56:53 -0400
Subject: [PATCH] Asset Shelf: Add default preview size option

Allow changing the size of previews in a new asset shelf
when registering a new asset shelf type.

Pull Request: https://projects.blender.org/blender/blender/pulls/121358
---
 scripts/startup/bl_ui/space_view3d.py              | 1 +
 source/blender/blenkernel/BKE_screen.hh            | 2 ++
 source/blender/editors/asset/intern/asset_shelf.cc | 3 ++-
 source/blender/makesrna/intern/rna_ui.cc           | 7 +++++++
 4 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/scripts/startup/bl_ui/space_view3d.py b/scripts/startup/bl_ui/space_view3d.py
index e599c0c45f1..e9af9b13e19 100644
--- a/scripts/startup/bl_ui/space_view3d.py
+++ b/scripts/startup/bl_ui/space_view3d.py
@@ -9088,6 +9088,7 @@ class VIEW3D_AST_sculpt_brushes(bpy.types.AssetShelf):
     # enabled.
 
     bl_space_type = 'VIEW_3D'
+    bl_default_preview_size = 48
 
     @classmethod
     def poll(cls, context):
diff --git a/source/blender/blenkernel/BKE_screen.hh b/source/blender/blenkernel/BKE_screen.hh
index a178947a6c9..90bae65272f 100644
--- a/source/blender/blenkernel/BKE_screen.hh
+++ b/source/blender/blenkernel/BKE_screen.hh
@@ -535,6 +535,8 @@ struct AssetShelfType {
 
   AssetShelfTypeFlag flag;
 
+  short default_preview_size;
+
   /** Determine if asset shelves of this type should be available in current context or not. */
   bool (*poll)(const bContext *C, const AssetShelfType *shelf_type);
 
diff --git a/source/blender/editors/asset/intern/asset_shelf.cc b/source/blender/editors/asset/intern/asset_shelf.cc
index 33f48a347ae..6994e0d329f 100644
--- a/source/blender/editors/asset/intern/asset_shelf.cc
+++ b/source/blender/editors/asset/intern/asset_shelf.cc
@@ -88,7 +88,8 @@ AssetShelf *create_shelf_from_type(AssetShelfType &type)
 {
   AssetShelf *shelf = MEM_new<AssetShelf>(__func__);
   *shelf = dna::shallow_zero_initialize();
-  shelf->settings.preview_size = DEFAULT_TILE_SIZE;
+  shelf->settings.preview_size = type.default_preview_size ? type.default_preview_size :
+                                                             DEFAULT_TILE_SIZE;
   shelf->settings.asset_library_reference = asset_system::all_library_reference();
   shelf->type = &type;
   shelf->preferred_row_count = 1;
diff --git a/source/blender/makesrna/intern/rna_ui.cc b/source/blender/makesrna/intern/rna_ui.cc
index 0f35e8cb3ac..b43ba106eff 100644
--- a/source/blender/makesrna/intern/rna_ui.cc
+++ b/source/blender/makesrna/intern/rna_ui.cc
@@ -2303,6 +2303,13 @@ static void rna_def_asset_shelf(BlenderRNA *brna)
   RNA_def_property_flag(prop, PROP_REGISTER_OPTIONAL | PROP_ENUM_FLAG);
   RNA_def_property_ui_text(prop, "Options", "Options for this asset shelf type");
 
+  prop = RNA_def_property(srna, "bl_default_preview_size", PROP_INT, PROP_UNSIGNED);
+  RNA_def_property_int_sdna(prop, nullptr, "type->default_preview_size");
+  RNA_def_property_range(prop, 32, 256);
+  RNA_def_property_flag(prop, PROP_REGISTER_OPTIONAL);
+  RNA_def_property_ui_text(
+      prop, "Default Preview Size", "Default size of the asset preview thumbnails in pixels");
+
   PropertyRNA *parm;
   FunctionRNA *func;