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Contents
module RubyCurses
# Create a simple tree-ish structure.
# Each node is not a tree, only submenus are trees
# Others contain a hash with menu character and code
# Typically the code is not a method symbol, it is to be
# used to decode a description or method symbol from anoterh hash
# @usage
# menu = MenuTree.new "Main", { c: :goprev, d: :gonext, e: :gonext, s: :submenu }
# menu.submenu :s, "submenu", {a: :next1, b: :next2, f: :next3 }
# puts menu.hash
# puts "each ..."
# menu.each { |e| puts e }
# menu.each_pair { |e, v| puts "#{e} #{v}" }
# puts " -- :c -- "
# puts menu[:c]
# puts " -- :s -- "
# puts menu[:s].children
class MenuTree
attr_reader :value
def initialize value, hash = {}
@value = [value, hash]
end
def << kv
@value[1][kv[0]] = kv[1]
end
def hash
@value[1]
end
alias :children :hash
def push hsh
hash().merge hsh
end
def [](x)
hash()[x]
end
def []=(x,y)
hash()[x] = y
end
def submenu key, value, hash = {}
m = MenuTree.new value, hash
#hash()[key] = [value, hash]
hash()[key] = m
end
def each
hash().keys.each { |e| yield e }
end
def each_pair
hash().each_pair { |name, val| yield name, val }
end
end
end
if __FILE__ == $PROGRAM_NAME
menu = RubyCurses::MenuTree.new "Main", { c: :goprev, d: :gonext, e: :gonext, s: :submenu }
menu.submenu :s, "submenu", {a: :next1, b: :next2, f: :next3 }
puts menu.hash
puts "each ..."
menu.each { |e| puts e }
menu.each_pair { |e, v| puts "#{e} #{v}" }
puts " -- :c -- "
puts menu[:c]
puts " -- :s -- "
puts menu[:s].children
end
Version data entries
7 entries across 7 versions & 2 rubygems