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|
#!/usr/bin/env ruby
require 'tk'
require 'tkextlib/vu/charts'
#######################################
Tk.root.geometry('+30+30')
delay = 2000
c = TkCanvas.new.pack
begin
st = Tk::Vu::TkcSticker.new(c, 0, 0, 10, 10)
rescue
Tk.messageBox(:type=>'ok', :title=>"No sticker Item",
:message=>"This build of vu does not include the sticker item")
exit
end
#st.delete
steps = []
steps << proc{
# I used a 75dpi screen for testing, but others should make no difference!
puts 'You\'ll see a small upright rectangle with "He" inside.'
st = Tk::Vu::TkcSticker.new(c, '6m', '10m', '13m', '27m', :text=>'Hello')
}
steps << proc{
puts 'You\'ll see the whole "Hello" drawn rotated 90 degrees.'
st[:orient] = :vertical
}
steps << proc{
puts 'The rectangle shrinks and the text is clipped to "Hell"'
#st.coords('6m', '10m', '13m', '20m')
st.coords('6m', '10m', '13m', '17m')
}
steps << proc{
puts 'Now you\'ll read "ello"'
st[:lefttrunc] = true
}
steps << proc{
puts 'Enlarging the rectangle shows the complete "Hello" again'
st.scale(0, 0, 3, 3)
}
steps << proc{
puts 'This time the text is repeated: "Hello", approx. 5mm space, "Hello"'
st[:space] = '5m'
}
steps << proc{
puts 'A vertical bar appears in the lower right region and text jumps to the left.'
st.configure(:anchor=>:n, :relw=>0.3, :relh=>0.7,
:relx=>0.6, :rely=>0.3, :bar=>'red')
}
steps << proc{
puts 'Paint the backgound.'
st[:fill] = 'yellow'
}
steps << proc{
puts "Let's test stippling."
st[:stipple] = 'gray25'
}
steps << proc{
puts 'Finally a large outline forces a single "Hello" and shrinks the bar.'
st[:width] = '6m'
}
Tk.root.bind('q', proc{exit})
TkTimer.new(delay, 1, *steps).start
Tk.mainloop
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