add bind_z! and bind_text!

src/Layers/Base.jl

@@ -0,0 +1,42 @@
+export gap!
+export bind_text!, bind_z!, add_labels!
+
+Base.size(x::Observable) = size(x[])
+Base.size(x::Observable, i) = size(x[], i)
+
+function gap!(fig, gap=0)
+  rowgap!(fig.layout, gap)
+  colgap!(fig.layout, gap)
+end
+
+
+function bind_text!(plts::Vector, labels::Observable{Vector{String}})
+  on(labels) do labels
+    for i in eachindex(plts)
+      plts[i].text[] = labels[i]
+    end
+  end
+end
+
+# for not Observable
+bind_z!(plts, z) = nothing
+
+function bind_z!(plts::Vector, z::Observable{<:AbstractArray{<:Real,3}})
+  on(z) do z
+    for i in eachindex(plts)
+      plts[i][3] = z[:, :, i]
+    end
+  end
+end
+
+
+function add_labels!(axs::Vector, labels::Observable, x, y;
+  fontsize=30, align=(:left, :top), offset=(10, -5))
+  plts = []
+  for i in eachindex(axs)
+    label = labels[][i]
+    plt = text!(axs[i], x, y, text=label; fontsize, align, offset)
+    push!(plts, plt)
+  end
+  bind_text!(plts, labels)
+end

src/Layers/Layers.jl

@@ -1,6 +1,7 @@
 export dateseries!
 export imagesc!, imagesc
 
+include("Base.jl")
 include("dateseries.jl")
 include("imagesc.jl")
 # include("datevspan.jl")

src/Layers/imagesc.jl

@@ -73,6 +73,7 @@ function imagesc!(fig::Union{Figure,GridPosition,GridSubposition},
   (fun_axis!)=nothing,
   kw...) where {R<:AbstractArray{<:Real,3}}
 
+  length(gap) == 1 && (gap = (gap, gap))
   n = size(z, 3)
   if layout === nothing
     ncol = ceil(Int, sqrt(n))
@@ -82,10 +83,10 @@ function imagesc!(fig::Union{Figure,GridPosition,GridSubposition},
   end
 
   titles === nothing && (titles = fill("", n))
-  k = 0
-  # ax, plt = nothing, nothing
   axs = []
   plts = []
+
+  k = 0
   for i = 1:nrow, j = 1:ncol
     k += 1
     k > n && break
@@ -102,22 +103,14 @@ function imagesc!(fig::Union{Figure,GridPosition,GridSubposition},
     push!(axs, ax)
     push!(plts, plt)
   end
-
-  # update plot
-  if isa(z, Observable)
-    on(z) do z
-      for i = 1:n
-        plts[i][3] = z[:, :, i]
-      end
-    end
-  end
+  bind_z!(plts, z)
 
   # unify the legend
   (colorrange != automatic && !force_show_legend) && 
     Colorbar(fig[1:nrow, ncol+1], plts[1])
 
-  rowgap!(fig.layout, gap)
-  colgap!(fig.layout, gap)
+  rowgap!(fig.layout, gap[1])
+  colgap!(fig.layout, gap[2])
   axs, plts
 end
 

src/MakieLayers.jl

@@ -10,7 +10,6 @@ export automatic
 export map_on_keyboard, map_on_mouse
 export my_theme!
 
-include("Base.jl")
 include("convert_arguments.jl")
 include("Layers/Layers.jl")
 include("events.jl")

src/colormap.jl

@@ -7,7 +7,7 @@ using Serialization: serialize, deserialize
 using Colors
 using ColorSchemes
 
-nan_color = RGBA(1.0, 1.0, 1.0, 0.2)
+nan_color = RGBA(1.0, 1.0, 1.0, 0.0)
 
 project_path(f...) = normpath(joinpath(@__DIR__, "..", f...))
 load(f) = deserialize(project_path(f))

test/test-Observable.jl

@@ -0,0 +1,10 @@
+begin
+  z = Observable(rand(4, 4, 4))
+
+  fig = Figure()
+  imagesc!(fig, z)
+  fig
+end
+
+z[] = rand(4, 4, 4)
+# if z changed, fig will update