From 51358717ee265a981e8c870f68dec57d311b65a8 Mon Sep 17 00:00:00 2001
From: Simon Christ <SimonChrist@gmx.de>
Date: Fri, 18 Feb 2022 21:12:44 +0100
Subject: [PATCH] add slicing of tuples of matrices for plotattributes (#4109)

* add slicing of tuples of matrices

* remove dot

* format files
---
 src/args.jl           | 12 +++++++-----
 test/test_pipeline.jl |  2 ++
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/src/args.jl b/src/args.jl
index cd7b9690..da105ea3 100644
--- a/src/args.jl
+++ b/src/args.jl
@@ -1748,15 +1748,17 @@ function slice_arg!(
     remove_pair::Bool,
 )
     v = get(plotattributes_in, k, plotattributes_out[k])
-    plotattributes_out[k] =
-        if haskey(plotattributes_in, k) &&
-           typeof(v) <: AMat &&
-           !isempty(v) &&
-           !(k in _plot_args)
+    plotattributes_out[k] = if haskey(plotattributes_in, k) && !(k in _plot_args)
+        if typeof(v) <: AMat && !isempty(v)
             slice_arg(v, idx)
+        elseif typeof(v) <: NTuple{2,AMat}
+            (slice_arg(v[1], idx), slice_arg(v[2], idx))
         else
             v
         end
+    else
+        v
+    end
     if remove_pair
         RecipesPipeline.reset_kw!(plotattributes_in, k)
     end
diff --git a/test/test_pipeline.jl b/test/test_pipeline.jl
index d6eda4d1..a345f93a 100644
--- a/test/test_pipeline.jl
+++ b/test/test_pipeline.jl
@@ -32,5 +32,7 @@ end
             @test plot(data4; NamedTuple{tuple(attribute)}(Ref(mat))...)[1][i][attribute] ==
                   [2(i - 1) + 1, 2i]
         end
+        @test plot(data4, ribbon = (mat, mat))[1][i][:ribbon] ==
+              ([2(i - 1) + 1, 2i], [2(i - 1) + 1, 2i])
     end
 end