From 02e625ccd7830419e4e96aff5d48374caa016437 Mon Sep 17 00:00:00 2001
From: Kamil Koczurek <koczurekk@gmail.com>
Date: Sat, 13 May 2023 12:40:29 +0200
Subject: [PATCH] Add AnyParameterId argument to NodeDataTrait::separator

---
 egui_node_graph/src/editor_ui.rs | 4 +++-
 egui_node_graph/src/traits.rs    | 4 +++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/egui_node_graph/src/editor_ui.rs b/egui_node_graph/src/editor_ui.rs
index 9d1bd9e..d8ef9af 100644
--- a/egui_node_graph/src/editor_ui.rs
+++ b/egui_node_graph/src/editor_ui.rs
@@ -603,6 +603,7 @@ where
                     self.graph[self.node_id].user_data.separator(
                         ui,
                         self.node_id,
+                        AnyParameterId::Input(param_id),
                         self.graph,
                         user_state,
                     );
@@ -615,7 +616,7 @@ where
             }
 
             let outputs = self.graph[self.node_id].outputs.clone();
-            for (param_name, _param) in outputs {
+            for (param_name, param_id) in outputs {
                 let height_before = ui.min_rect().bottom();
                 responses.extend(
                     self.graph[self.node_id]
@@ -627,6 +628,7 @@ where
                 self.graph[self.node_id].user_data.separator(
                     ui,
                     self.node_id,
+                    AnyParameterId::Output(param_id),
                     self.graph,
                     user_state,
                 );
diff --git a/egui_node_graph/src/traits.rs b/egui_node_graph/src/traits.rs
index 8354035..209caf1 100644
--- a/egui_node_graph/src/traits.rs
+++ b/egui_node_graph/src/traits.rs
@@ -162,13 +162,15 @@ where
     ///
     /// Invoked between inputs, outputs and bottom UI. Useful for
     /// complicated UIs that start to lose structure without explicit
-    /// separators.
+    /// separators. The `param_id` argument is the id of input or output
+    /// *preceeding* the separator.
     ///
     /// Default implementation does nothing.
     fn separator(
         &self,
         _ui: &mut egui::Ui,
         _node_id: NodeId,
+        _param_id: AnyParameterId,
         _graph: &Graph<Self, Self::DataType, Self::ValueType>,
         _user_state: &mut Self::UserState,
     ) {