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Contents
require 'highline'
module Kafo
class ColorScheme
def self.colors_possible?
::ENV['TERM'] && !`which tput 2> /dev/null`.empty? && `tput colors`.to_i > 0
end
def initialize(options = {})
@background = options[:background].nil? ? :dark : options[:background]
@colors = options[:colors].nil? ? self.class.colors_possible? : options[:colors]
end
def setup
HighLine.color_scheme = build_color_scheme
if @colors
HighLine.use_color = true
else
HighLine.use_color = false
end
end
private
def build_color_scheme
HighLine::ColorScheme.new do |cs|
color_hash.each do |key, value|
cs[key] = value
end
end
end
def color_hash
@color_hash ||= {
:headline => build_color(:yellow),
:title => build_color(:yellow),
:horizontal_line => build_color(:white),
:important => build_color(:white),
:question => build_color(:green),
:info => build_color(:cyan),
:cancel => build_color(:red),
:run => build_color(:green),
:bad => build_color(:red),
:good => build_color(:green),
}
end
def build_color(color)
bright = @background.to_s == 'bright'
color = convert_bright_to_dark(color) if bright
attributes = [ color ]
attributes.unshift :bold unless bright
attributes
end
def convert_bright_to_dark(color)
case color
when :white
:black
when :cyan
:blue
else
color
end
end
end
end
Version data entries
14 entries across 14 versions & 1 rubygems