UI: Draw real node sockets for node input buttons

For buttons representing node inputs (e.g. in the material properties)
rather than drawing some generic socket icon, the actual sockets are
drawn now. That includes color, shape and the selection outline.

This should make it easier to understand what these buttons relate to.

Screenshots: {F8469252}, {F8469248} (The left alignment will be done in
a follow-up commit.)

Differential Revision: https://developer.blender.org/D7409

Reviewed by: Brecht Van Lommel, Clément Foucault, William Reynish

1 files changed, 5 insertions, 0 deletions

diff --git a/source/blender/editors/include/ED_node.h b/source/blender/editors/include/ED_node.h
index 7a1f64b61d4..dfdd809dbd1 100644
--- a/source/blender/editors/include/ED_node.h
+++ b/source/blender/editors/include/ED_node.h
@@ -37,6 +37,7 @@ struct Tex;
 struct View2D;
 struct bContext;
 struct bNode;
+struct bNodeSocket;
 struct bNodeSocketType;
 struct bNodeTree;
 struct bNodeTree;
@@ -79,6 +80,10 @@ void ED_node_draw_snap(
     struct View2D *v2d, const float cent[2], float size, NodeBorder border, unsigned int pos);
 
 /* node_draw.c */
+void ED_node_socket_draw(struct bNodeSocket *sock,
+                         const struct rcti *rect,
+                         const float color[4],
+                         float scale);
 void ED_node_tree_update(const struct bContext *C);
 void ED_node_tag_update_id(struct ID *id);
 void ED_node_tag_update_nodetree(struct Main *bmain, struct bNodeTree *ntree, struct bNode *node);