1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
#! /usr/local/bin/ruby
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
|
