From c20a7b3c69b3bc239eeab7171e4d2bf354d8b85e Mon Sep 17 00:00:00 2001
From: Thomas Breloff <tom@breloff.com>
Date: Sat, 19 Sep 2015 17:23:18 -0400
Subject: [PATCH] added fillto for gadfly/immerse

---
 src/args.jl            |  3 ++-
 src/backends/gadfly.jl | 10 ++++++++++
 src/utils.jl           |  3 ++-
 3 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/src/args.jl b/src/args.jl
index bfacf581..f22adf92 100644
--- a/src/args.jl
+++ b/src/args.jl
@@ -234,7 +234,8 @@ function getSeriesRGBColor(c, d::Dict, n::Int)
   end
 
   # should be a RGB now... either it was passed in, generated automatically, or created from a string
-  @assert isa(c, RGB)
+  # @assert isa(c, RGB)
+  @assert isa(c, Colorant)
 
   # return the RGB
   c
diff --git a/src/backends/gadfly.jl b/src/backends/gadfly.jl
index fe10f842..24b9759e 100644
--- a/src/backends/gadfly.jl
+++ b/src/backends/gadfly.jl
@@ -134,6 +134,16 @@ function addGadflySeries!(gplt, d::Dict)
 
   # add the Geoms
   append!(gfargs, getLineGeoms(d))
+
+  # fillto
+  if d[:fillto] != nothing
+    fillto = makevec(d[:fillto])
+    n = length(fillto)
+    push!(d[:kwargs], (:ymin, Float64[min(y, fillto[mod1(i,n)]) for (i,y) in enumerate(d[:y])]))
+    push!(d[:kwargs], (:ymax, Float64[max(y, fillto[mod1(i,n)]) for (i,y) in enumerate(d[:y])]))
+    # push!(d[:kwargs], (:ymax, Float64[max(y, fillto) for y in d[:y]]))
+    push!(gfargs, Gadfly.Geom.ribbon)
+  end
   
   # handle markers
   geoms, guides = getMarkerGeomsAndGuides(d)
diff --git a/src/utils.jl b/src/utils.jl
index 8ec34da2..08f7d74a 100644
--- a/src/utils.jl
+++ b/src/utils.jl
@@ -104,7 +104,8 @@ function sticksHack(; kw...)
   dLine, dScatter
 end
 
-
+makevec(v::AVec) = v
+makevec{T}(v::T) = T[v]
 
 
 function regressionXY(x, y)