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#! /usr/local/bin/ruby
# frozen_string_literal: false
require "tk"
def drawlines()
print Time.now, "\n"
for j in 0 .. 99
print "*"
$stdout.flush
if (j & 1) != 0
col = "blue"
else
col = "red"
end
for i in 0 .. 99
# $a.create(TkcLine, i, 0, 0, 500 - i, "fill"=>col)
end
end
print Time.now, "\n"
for j in 0 .. 99
print "*"
$stdout.flush
if (j & 1) != 0
col = "blue"
else
col = "red"
end
for i in 0 .. 99
$a.create(TkcLine, i, 0, 0, 500 - i, "fill"=>col)
end
end
print Time.now, "\n"
# Tk.root.destroy
end
$a = TkCanvas.new{
height(500)
width(500)
}
$b = TkButton.new{
text("draw")
command(proc{drawlines()})
}
TkPack.configure($a, $b, {"side"=>"left"})
Tk.mainloop
# eof
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