I18n: extract and disambiguate a few messages

Extract:
- Compositor error messages.
- `bUnitDef`s were broken after cleanup commit 2b77cd726d. Since each
  unit's "display name" is now preceded by a consistent "name_display"
  comment, the regex which extracts the unit is greatly simplified.
  It now relies on the presence of the comment instead of the struct
  order.
- "Preset" menu and "Apply Preset" button from the curveprofile
  template.
- Operator labels from the catalog context menu.

Disambiguate:
- "Bake Data": can mean "Which data to bake" (verb), or "The data that
  were baked" (noun).
- "Cache" in the Simulation Nodes panel is a verb, not a noun.
- "Mix" in the snapping menu is a noun, not a verb.
- "Top" and "Bottom" can mean the upper part of an object or the
  highest point or element of something like a menu or list.

Pull Request: https://projects.blender.org/blender/blender/pulls/115963

source/blender/blenkernel/intern/unit.cc

@@ -81,7 +81,10 @@
 
 /* clang-format on */
 
-/* Define a single unit. */
+/* Define a single unit.
+ * When changing the format, please check that the PYGETTEXT_KEYWORDS regex
+ * used to extract the unit names for translation still works
+ * in scripts/modules/bl_i18n_utils/settings.py. */
 struct bUnitDef {
   const char *name;
   /** Abused a bit for the display name. */

source/blender/draw/intern/draw_manager_c.cc

@@ -18,6 +18,8 @@
 
 #include "BLF_api.h"
 
+#include "BLT_translation.h"
+
 #include "BKE_colortools.h"
 #include "BKE_context.hh"
 #include "BKE_curve.hh"
@@ -1151,7 +1153,7 @@ void DRW_draw_region_engine_info(int xoffset, int *yoffset, int line_height)
       BLF_shadow(font_id, 5, blender::float4{0.0f, 0.0f, 0.0f, 1.0f});
       BLF_shadow_offset(font_id, 1, -1);
 
-      const char *buf_step = data->info;
+      const char *buf_step = IFACE_(data->info);
       do {
         const char *buf = buf_step;
         buf_step = BLI_strchr_or_end(buf, '\n');

source/blender/editors/interface/interface_templates.cc

@@ -5301,8 +5301,15 @@ static void CurveProfile_buttons_layout(uiLayout *layout, PointerRNA *ptr, RNAUp
   /* There is probably potential to use simpler "uiItemR" functions here, but automatic updating
    * after a preset is selected would be more complicated. */
   uiLayout *row = uiLayoutRow(layout, true);
-  bt = uiDefBlockBut(
-      block, CurveProfile_buttons_presets, profile, "Preset", 0, 0, UI_UNIT_X, UI_UNIT_X, "");
+  bt = uiDefBlockBut(block,
+                     CurveProfile_buttons_presets,
+                     profile,
+                     IFACE_("Preset"),
+                     0,
+                     0,
+                     UI_UNIT_X,
+                     UI_UNIT_X,
+                     "");
   UI_but_funcN_set(bt, rna_update_cb, MEM_dupallocN(cb), nullptr);
 
   /* Show a "re-apply" preset button when it has been changed from the preset. */
@@ -5313,7 +5320,7 @@ static void CurveProfile_buttons_layout(uiLayout *layout, PointerRNA *ptr, RNAUp
                             UI_BTYPE_BUT,
                             0,
                             ICON_NONE,
-                            "Apply Preset",
+                            IFACE_("Apply Preset"),
                             0,
                             0,
                             UI_UNIT_X,

source/blender/editors/space_file/asset_catalog_tree_view.cc

@@ -294,7 +294,7 @@ void AssetCatalogTreeViewItem::build_context_menu(bContext &C, uiLayout &column)
 
   uiItemFullO(&column,
               "ASSET_OT_catalog_new",
-              "New Catalog",
+              IFACE_("New Catalog"),
               ICON_NONE,
               nullptr,
               WM_OP_INVOKE_DEFAULT,
@@ -306,14 +306,14 @@ void AssetCatalogTreeViewItem::build_context_menu(bContext &C, uiLayout &column)
   BLI_uuid_format(catalog_id_str_buffer, catalog_item_.get_catalog_id());
   uiItemFullO(&column,
               "ASSET_OT_catalog_delete",
-              "Delete Catalog",
+              IFACE_("Delete Catalog"),
               ICON_NONE,
               nullptr,
               WM_OP_INVOKE_DEFAULT,
               UI_ITEM_NONE,
               &props);
   RNA_string_set(&props, "catalog_id", catalog_id_str_buffer);
-  uiItemO(&column, "Rename", ICON_NONE, "UI_OT_view_item_rename");
+  uiItemO(&column, IFACE_("Rename"), ICON_NONE, "UI_OT_view_item_rename");
 
   /* Doesn't actually exist right now, but could be defined in Python. Reason that this isn't done
    * in Python yet is that catalogs are not exposed in BPY, and we'd somehow pass the clicked on

source/blender/nodes/geometry/nodes/node_geo_extrude_mesh.cc

@@ -42,7 +42,7 @@ static void node_declare(NodeDeclarationBuilder &b)
     node_storage(node).mode = GEO_NODE_EXTRUDE_MESH_FACES;
   });
   b.add_output<decl::Geometry>("Mesh").propagate_all();
-  b.add_output<decl::Bool>("Top").field_on_all();
+  b.add_output<decl::Bool>("Top").field_on_all().translation_context(BLT_I18NCONTEXT_ID_NODETREE);
   b.add_output<decl::Bool>("Side").field_on_all();
 }
 

source/blender/nodes/geometry/nodes/node_geo_mesh_primitive_cone.cc

@@ -52,8 +52,9 @@ static void node_declare(NodeDeclarationBuilder &b)
       .subtype(PROP_DISTANCE)
       .description("Height of the generated cone");
   b.add_output<decl::Geometry>("Mesh");
-  b.add_output<decl::Bool>("Top").field_on_all();
-  b.add_output<decl::Bool>("Bottom").field_on_all();
+  b.add_output<decl::Bool>("Top").field_on_all().translation_context(BLT_I18NCONTEXT_ID_NODETREE);
+  b.add_output<decl::Bool>("Bottom").field_on_all().translation_context(
+      BLT_I18NCONTEXT_ID_NODETREE);
   b.add_output<decl::Bool>("Side").field_on_all();
   b.add_output<decl::Vector>("UV Map").field_on_all();
 }

source/blender/nodes/geometry/nodes/node_geo_mesh_primitive_cylinder.cc

@@ -47,9 +47,10 @@ static void node_declare(NodeDeclarationBuilder &b)
       .subtype(PROP_DISTANCE)
       .description("The height of the cylinder");
   b.add_output<decl::Geometry>("Mesh");
-  b.add_output<decl::Bool>("Top").field_on_all();
+  b.add_output<decl::Bool>("Top").field_on_all().translation_context(BLT_I18NCONTEXT_ID_NODETREE);
   b.add_output<decl::Bool>("Side").field_on_all();
-  b.add_output<decl::Bool>("Bottom").field_on_all();
+  b.add_output<decl::Bool>("Bottom").field_on_all().translation_context(
+      BLT_I18NCONTEXT_ID_NODETREE);
   b.add_output<decl::Vector>("UV Map").field_on_all();
 }