add Plots extension

Project.toml

@@ -13,19 +13,23 @@ Stipple = "4acbeb90-81a0-11ea-1966-bdaff8155998"
 DataFrames = "1"
 Genie = "5.24.4"
 PlotlyBase = "0.8.19"
+Plots = "1.4"
 Requires = "1"
 Stipple = "0.29, 0.30"
 julia = "1.6"
 
 [extras]
 PlotlyBase = "a03496cd-edff-5a9b-9e67-9cda94a718b5"
+Plots = "91a5bcdd-55d7-5caf-9e0b-520d859cae80"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [extensions]
 StipplePlotlyPlotlyBaseExt = "PlotlyBase"
+StipplePlotlyPlotsExt = ["Plots", "PlotlyBase"]
 
 [targets]
 test = ["Test", "PlotlyBase"]
 
 [weakdeps]
 PlotlyBase = "a03496cd-edff-5a9b-9e67-9cda94a718b5"
+Plots = "91a5bcdd-55d7-5caf-9e0b-520d859cae80"

ext/StipplePlotlyPlotsExt.jl

@@ -0,0 +1,33 @@
+module StipplePlotlyPlotsExt
+
+using StipplePlotly
+using StipplePlotly.Stipple
+using StipplePlotly.Charts
+import Stipple: render, stipple_parse
+
+if isdefined(Base, :get_extension)
+    using Plots
+    using PlotlyBase
+else
+    using ..Plots
+    using ..PlotlyBase
+end
+
+function Stipple.render(pl::Plots.Plot)
+    pl = Plots.plotlybase_syncplot(pl)
+    delete!(pl.layout.fields, :height)
+    delete!(pl.layout.fields, :width)
+    pl.layout.fields[:margin] = Dict(:l => 50, :b => 50, :r => 50, :t => 60)
+
+    return pl
+end
+
+function __init__()
+    current_backend = Plots.backend()
+    if current_backend !== :plotly
+        Plots.plotly()
+        Plots.backend(current_backend)
+    end
+end
+
+end