57 lines
1.7 KiB
Ruby
57 lines
1.7 KiB
Ruby
#!/usr/bin/env ruby
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require 'tk'
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require 'tkextlib/vu/pie'
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pie = Tk::Vu::Pie.new(:label=>"My Revolving Budget"){
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itemconfigure('Welfare', :value=>3.004)
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itemconfigure('Military', :value=>7.006)
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itemconfigure('Transport', :value=>1.6, :explode=>15)
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itemconfigure('Parks', :value=>0.9)
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itemconfigure('Schools', :value=>2)
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itemconfigure('Debt', :value=>4, :explode=>10)
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configure(:angle=>10, :origin=>90, :shadow=>10)
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}
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spin = TkTimer.new(60, -1, proc{|obj|
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pie.configure(:origin=>pie[:origin] + 1)
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})
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f = TkFrame.new
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fast_btn = TkButton.new(f, :text=>"Spin Faster", :command=>proc{spin.start})
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slow_btn = TkButton.new(f, :text=>"Spin Slower", :command=>proc{spin.stop})
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quit_btn = TkButton.new(f, :text=>"Exit", :command=>proc{exit})
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Tk.grid(pie, :sticky=>:news)
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Tk.grid(f, :sticky=>:ew)
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Tk.pack(fast_btn, slow_btn, quit_btn,
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:in=>f, :side=>:left, :fill=>:both, :expand=>true, :padx=>6, :pady=>4)
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Tk.root.grid_columnconfigure(0, :weight=>1)
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Tk.root.grid_rowconfigure(0, :weight=>1)
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priv = {
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:x=>0, :y=>0, :pie_in=>false, :angle=>pie[:angle], :origin=>pie[:origin]
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}
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pie.bind('ButtonPress-1', proc{|w, x, y|
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priv[:x] = x
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priv[:y] = y
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priv[:pie_in] = (w.winfo_width/1.8 > x)
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priv[:angle] = w[:angle]
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priv[:origin] = w[:origin]
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}, '%W %x %y')
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pie.bind('B1-Motion', proc{|w, x, y|
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if priv[:pie_in]
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w.configure(:angle=>priv[:angle] + (priv[:y] - y)/3,
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:origin=>(priv[:origin] +
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((w.winfo_height/2.2 > y)? -1: 1) *
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(priv[:x] - x)/3) % 360)
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end
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}, '%W %x %y')
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Tk.mainloop
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