Cleanup: Store runtime space node variables in a separate struct

This commit moves runtime-only variables from the `SpaceNode`
DNA struct to a private struct in `node_intern.h`. Before, it was hard
to tell which data needed to be saved in files, this should make it
more clear.

Node that the `edittree` field is basically a runtime variable, since
it's set from the `treepath` list on read, but moving it would require
some more invasive changes that I don't think are worth it right now.
Also, not all of the moved variables were explicitly cleared on read--
`aspect` is set at the start of a redraw, `cursor` is set in a region
callback, and `recalc` was used as an update flag.

Differential Revision: https://developer.blender.org/D10141

1 files changed, 4 insertions, 0 deletions

diff --git a/source/blender/editors/include/ED_node.h b/source/blender/editors/include/ED_node.h
index 417cae800ea..78f354a300d 100644
--- a/source/blender/editors/include/ED_node.h
+++ b/source/blender/editors/include/ED_node.h
@@ -51,6 +51,10 @@ typedef enum {
 #define NODE_GRID_STEPS 5
 
 /* space_node.c */
+
+void ED_node_cursor_location_get(const struct SpaceNode *snode, float value[2]);
+void ED_node_cursor_location_set(struct SpaceNode *snode, const float value[2]);
+
 int ED_node_tree_path_length(struct SpaceNode *snode);
 void ED_node_tree_path_get(struct SpaceNode *snode, char *value);
 void ED_node_tree_path_get_fixedbuf(struct SpaceNode *snode, char *value, int max_length);