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using Tk
using Images
using ImageView
using Color
function renderfractal(canvas, iterations, make_c, step)
imgsize = get_size(canvas)
img = [ HSV(0, 0, 0) for y=1:imgsize[1], x=1:imgsize[2] ]
view(canvas, img, interactive=false)
f = FractalExplorer.Fractal{Float64}(imgsize, make_c, step)
for i = 1:iterations
FractalExplorer.step(f)
new_pixels = (abs(f.z) .> 2) & (img .== HSV(0, 0, 0))
img[new_pixels] = HSV(i * 360/iterations, 1, 1)
view(canvas, img, interactive=false)
end
if (!isinteractive())
cv = Condition()
win = Tk.toplevel(canvas)
bind(win, "<Destroy>", e->notify(cv))
wait(cv)
end
end
function mandelbrot(canvas, iterations = 45)
renderfractal(canvas, iterations, z -> z, (z, c) -> z.^2 + c)
end
function julia(canvas, iterations = 45, c = 0)
renderfractal(canvas, iterations, z -> c, (z, c) -> z.^2 + c)
end
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