UI: Show library status icons in search menus, rather than letter prefix

Rather than a `L` (linked), `O` (overridden) or `M` (missing) prefix for the
name, show the existing library status icons. See D7999 for screenshots.

Note that when using preview icons, or if the search menu contains items with
own icons (e.g. brush icons), we still fallback to the prefix solution.

Zero or fake user is still indicated with a prefix.

Differential Revision: https://developer.blender.org/D7999

Reviewed by: Bastien Montagne, William Reynish

1 files changed, 20 insertions, 0 deletions

diff --git a/source/blender/editors/interface/interface_icons.c b/source/blender/editors/interface/interface_icons.c
index deea3028354..7411639a99f 100644
--- a/source/blender/editors/interface/interface_icons.c
+++ b/source/blender/editors/interface/interface_icons.c
@@ -2192,6 +2192,26 @@ int ui_id_icon_get(const bContext *C, ID *id, const bool big)
   return iconid;
 }
 
+int UI_library_icon_get(const ID *id)
+{
+  if (ID_IS_LINKED(id)) {
+    if (id->tag & LIB_TAG_MISSING) {
+      return ICON_LIBRARY_DATA_BROKEN;
+    }
+    else if (id->tag & LIB_TAG_INDIRECT) {
+      return ICON_LIBRARY_DATA_INDIRECT;
+    }
+    else {
+      return ICON_LIBRARY_DATA_DIRECT;
+    }
+  }
+  else if (ID_IS_OVERRIDE_LIBRARY(id)) {
+    return ICON_LIBRARY_DATA_OVERRIDE;
+  }
+
+  return ICON_NONE;
+}
+
 int UI_rnaptr_icon_get(bContext *C, PointerRNA *ptr, int rnaicon, const bool big)
 {
   ID *id = NULL;