gistfile1.txt

Shoes.setup do
  gem 'curb >= 0.8.3'
  gem 'json >= 1.1.1'
end

require 'visual_objects'

Shoes.app do
  background "#FFFFFF"

  @stroke = []
  @strokes = []
  
  @lines = [];
  
  motion do |left, top|
    button = mouse[0]
    
    if (button == 1)
      unless @stroke.empty?
        @lines << line(@stroke.last[:x], @stroke.last[:y], left, top)
      end
      
      @stroke << {:x => left, :y => top}
    end
    
  end

  release do |button, left, top|
    if (button == 1)
      @strokes  << @stroke
      @stroke = []
    end
  end

  button("clear").click {
    @lines.each(&:remove)
    @strokes = @stroke = []
  }
  
  button("submit").click {
    alert('/int_0^1')
  }
  
end