Replace of (id->lib != NULL) check by meaningful macro.

Idea is to replace hard-to-track (id->lib != NULL) 'is linked datablock' check everywhere in Blender
by a macro doing the same thing. This will allow to easily spot those checks in future, and more importantly,
to easily change it (see work done in asset-engine branch).

Note: did not touch to readfile.c, since there most of the time 'id->lib' check actually concerns the pointer,
and not a check whether ID is linked or not. Will have a closer look at it later.

Reviewers: campbellbarton, brecht, sergey

Differential Revision: https://developer.blender.org/D2082

1 files changed, 3 insertions, 3 deletions

diff --git a/source/blender/editors/space_logic/logic_ops.c b/source/blender/editors/space_logic/logic_ops.c
index 51f4a61047d..074368a82c5 100644
--- a/source/blender/editors/space_logic/logic_ops.c
+++ b/source/blender/editors/space_logic/logic_ops.c
@@ -65,7 +65,7 @@ static int edit_sensor_poll(bContext *C)
 {
 	PointerRNA ptr = CTX_data_pointer_get_type(C, "sensor", &RNA_Sensor);
 
-	if (ptr.data && ((ID *)ptr.id.data)->lib) return 0;
+	if (ptr.data && ID_IS_LINKED_DATABLOCK(ptr.id.data)) return 0;
 	return 1;
 }
 
@@ -73,7 +73,7 @@ static int edit_controller_poll(bContext *C)
 {
 	PointerRNA ptr = CTX_data_pointer_get_type(C, "controller", &RNA_Controller);
 
-	if (ptr.data && ((ID *)ptr.id.data)->lib) return 0;
+	if (ptr.data && ID_IS_LINKED_DATABLOCK(ptr.id.data)) return 0;
 	return 1;
 }
 
@@ -81,7 +81,7 @@ static int edit_actuator_poll(bContext *C)
 {
 	PointerRNA ptr = CTX_data_pointer_get_type(C, "actuator", &RNA_Actuator);
 
-	if (ptr.data && ((ID *)ptr.id.data)->lib) return 0;
+	if (ptr.data && ID_IS_LINKED_DATABLOCK(ptr.id.data)) return 0;
 	return 1;
 }