UI: Add the option to not display some socket labels

This commit adds a flag to disable displaying some socket labels which
just redundant eye sores. We still want to have a label, because that
information can potentially be accessed elsewhere in the UI.

The flag is used in a few geometry nodes.

Differential Revision: https://developer.blender.org/D11540

source/blender/editors/space_node/drawnode.cc

@@ -3541,6 +3541,8 @@ static void std_node_socket_draw(
     return;
   }
 
+  text = (sock->flag & SOCK_HIDE_LABEL) ? "" : text;
+
   switch (type) {
     case SOCK_FLOAT:
     case SOCK_INT:

source/blender/makesdna/DNA_node_types.h

@@ -210,6 +210,12 @@ typedef enum eNodeSocketFlag {
   SOCK_COMPACT = (1 << 10),
   /** Make the input socket accept multiple incoming links in the UI. */
   SOCK_MULTI_INPUT = (1 << 11),
+  /**
+   * Don't show the socket's label in the interface, for situations where the type is obvious and
+   * the name takes up too much space. Note that it doesn't really make sense for this to be stored
+   * in runtime data.
+   */
+  SOCK_HIDE_LABEL = (1 << 12),
 } eNodeSocketFlag;
 
 /* limit data in bNode to what we want to see saved? */

source/blender/nodes/geometry/nodes/node_geo_collection_info.cc

@@ -24,7 +24,16 @@
 #include "node_geometry_util.hh"
 
 static bNodeSocketTemplate geo_node_collection_info_in[] = {
-    {SOCK_COLLECTION, N_("Collection")},
+    {SOCK_COLLECTION,
+     N_("Collection"),
+     0.0f,
+     0.0f,
+     0.0f,
+     0.0f,
+     0.0f,
+     0.0f,
+     PROP_NONE,
+     SOCK_HIDE_LABEL},
     {-1, ""},
 };
 

source/blender/nodes/geometry/nodes/node_geo_material_assign.cc

@@ -26,7 +26,16 @@
 
 static bNodeSocketTemplate geo_node_material_assign_in[] = {
     {SOCK_GEOMETRY, N_("Geometry")},
-    {SOCK_MATERIAL, N_("Material")},
+    {SOCK_MATERIAL,
+     N_("Material"),
+     0.0f,
+     0.0f,
+     0.0f,
+     0.0f,
+     0.0f,
+     0.0f,
+     PROP_NONE,
+     SOCK_HIDE_LABEL},
     {SOCK_STRING, N_("Selection")},
     {-1, ""},
 };

source/blender/nodes/geometry/nodes/node_geo_object_info.cc

@@ -22,7 +22,7 @@
 #include "node_geometry_util.hh"
 
 static bNodeSocketTemplate geo_node_object_info_in[] = {
-    {SOCK_OBJECT, N_("Object")},
+    {SOCK_OBJECT, N_("Object"), 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, PROP_NONE, SOCK_HIDE_LABEL},
     {-1, ""},
 };
 

source/blender/nodes/geometry/nodes/node_geo_point_instance.cc

@@ -26,8 +26,17 @@
 
 static bNodeSocketTemplate geo_node_point_instance_in[] = {
     {SOCK_GEOMETRY, N_("Geometry")},
-    {SOCK_OBJECT, N_("Object")},
-    {SOCK_COLLECTION, N_("Collection")},
+    {SOCK_OBJECT, N_("Object"), 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, PROP_NONE, SOCK_HIDE_LABEL},
+    {SOCK_COLLECTION,
+     N_("Collection"),
+     0.0f,
+     0.0f,
+     0.0f,
+     0.0f,
+     0.0f,
+     0.0f,
+     PROP_NONE,
+     SOCK_HIDE_LABEL},
     {SOCK_INT, N_("Seed"), 0, 0, 0, 0, -10000, 10000},
     {-1, ""},
 };

source/blender/nodes/geometry/nodes/node_geo_select_by_material.cc

@@ -28,7 +28,16 @@
 
 static bNodeSocketTemplate geo_node_select_by_material_in[] = {
     {SOCK_GEOMETRY, N_("Geometry")},
-    {SOCK_MATERIAL, N_("Material")},
+    {SOCK_MATERIAL,
+     N_("Material"),
+     0.0f,
+     0.0f,
+     0.0f,
+     0.0f,
+     0.0f,
+     0.0f,
+     PROP_NONE,
+     SOCK_HIDE_LABEL},
     {SOCK_STRING, N_("Selection")},
     {-1, ""},
 };