Cleanup: Move node editor files to proper namespace

This commit moves code in all node editor files to the
`blender::ed::space_node` namespace, except for C API
functions defined in `ED_node.h`, which can only be moved
once all areas calling them are moved to C++.

The change is fairly straightforward, I just moved a couple
of "ED_" code blocks around to make the namespace more
contiguous, and there's the method for adding a pointer to
a struct in a C++ namespace in DNA.

Differential Revision: https://developer.blender.org/D13871

1 files changed, 16 insertions, 10 deletions

diff --git a/source/blender/editors/space_node/space_node.cc b/source/blender/editors/space_node/space_node.cc
index 8e986217ffe..40a7e3e616e 100644
--- a/source/blender/editors/space_node/space_node.cc
+++ b/source/blender/editors/space_node/space_node.cc
@@ -206,6 +206,18 @@ void ED_node_set_active_viewer_key(SpaceNode *snode)
   }
 }
 
+void ED_node_cursor_location_get(const SpaceNode *snode, float value[2])
+{
+  copy_v2_v2(value, snode->runtime->cursor);
+}
+
+void ED_node_cursor_location_set(SpaceNode *snode, const float value[2])
+{
+  copy_v2_v2(snode->runtime->cursor, value);
+}
+
+namespace blender::ed::space_node {
+
 float2 space_node_group_offset(const SpaceNode &snode)
 {
   const bNodeTreePath *path = (bNodeTreePath *)snode.treepath.last;
@@ -556,16 +568,6 @@ static void node_toolbar_region_draw(const bContext *C, ARegion *region)
   ED_region_panels(C, region);
 }
 
-void ED_node_cursor_location_get(const SpaceNode *snode, float value[2])
-{
-  copy_v2_v2(value, snode->runtime->cursor);
-}
-
-void ED_node_cursor_location_set(SpaceNode *snode, const float value[2])
-{
-  copy_v2_v2(snode->runtime->cursor, value);
-}
-
 static void node_cursor(wmWindow *win, ScrArea *area, ARegion *region)
 {
   SpaceNode *snode = (SpaceNode *)area->spacedata.first;
@@ -978,8 +980,12 @@ static void node_space_subtype_item_extend(bContext *C, EnumPropertyItem **item,
   }
 }
 
+}  // namespace blender::ed::space_node
+
 void ED_spacetype_node()
 {
+  using namespace blender::ed::space_node;
+
   SpaceType *st = MEM_cnew<SpaceType>("spacetype node");
   ARegionType *art;