Sha256: 32069f2f089a88d76d412f9024bd510396826d87ee909ca85bf5136937eb292a
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Versions: 23
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Stored size: 1.26 KB
Contents
module Redwood
class HorizontalSelector
class UnknownValue < StandardError; end
attr_accessor :label, :changed_by_user
def initialize label, vals, labels, base_color=:horizontal_selector_unselected_color, selected_color=:horizontal_selector_selected_color
@label = label
@vals = vals
@labels = labels
@base_color = base_color
@selected_color = selected_color
@selection = 0
@changed_by_user = false
end
def set_to val
raise UnknownValue, val.inspect unless can_set_to? val
@selection = @vals.index(val)
end
def can_set_to? val
@vals.include? val
end
def val; @vals[@selection] end
def line width=nil
label =
if width
sprintf "%#{width}s ", @label
else
"#{@label} "
end
[[@base_color, label]] +
(0 ... @labels.length).inject([]) do |array, i|
array + [
if i == @selection
[@selected_color, @labels[i]]
else
[@base_color, @labels[i]]
end] + [[@base_color, " "]]
end + [[@base_color, ""]]
end
def roll_left
@selection = (@selection - 1) % @labels.length
@changed_by_user = true
end
def roll_right
@selection = (@selection + 1) % @labels.length
@changed_by_user = true
end
end
end
Version data entries
23 entries across 23 versions & 1 rubygems