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text_format.rb
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text_format.rb
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module TextFormat
class ProgressBar
def initialize(progress:, max:, title: nil, bar_width: 10)
@progress = progress > max ? max : progress
@max = max
@title = title
@bar_width = bar_width
end
def render
filled_sections = fully_filled_sections + partially_full_sections
empty_sections = '─' * (bar_width - filled_sections.length)
"#{formatted_title}╟#{filled_sections}#{empty_sections}╢ :: #{progress}/#{max}"
end
private
attr_reader :title, :progress, :max, :bar_width
def formatted_title
title ? "**#{title}** " : ''
end
def total_segments
bar_width * 4
end
def segment_size
Rational(max, total_segments)
end
def progress_segments
(progress / segment_size).floor
end
def fully_filled_sections
size = progress_segments / 4
'█' * size
end
def partially_full_sections
return '' if progress == max
fill_selector = progress_segments % 4
['─', '░', '▒', '▓'][fill_selector]
end
end
class GradientProgressBar
def initialize(progress:, max:, title: nil, bar_width: 10)
@progress = progress > max ? max : progress
@max = max
@title = title
@bar_width = bar_width
end
def render
"#{formatted_title}╟#{gradated_segments}╢ :: #{progress}/#{max}"
end
private
attr_reader :title, :progress, :max, :bar_width
def formatted_title
title ? "**#{title}** " : ''
end
def total_segments
bar_width * 4
end
def segment_size
Rational(max, total_segments)
end
def progress_segments
(progress / segment_size).floor
end
def gradated_segments
elements = [0] * bar_width
progress_segments.times do |_|
bar_width.times do |i|
next if elements[i] == 4
if i == (bar_width - 1) || elements[i] == elements[i+1]
elements[i] = elements[i] + 1
break
end
end
end
elements.collect { |x| ['─', '░', '▒', '▓', '█'][x] }.join
end
end
class CenteredProgressBar
def initialize(progress:, max:, title: nil, bar_width: 10)
raise 'Bar width must be even for centered bars' unless bar_width.even?
@progress = progress > max ? max : progress
@max = max
@title = title
@bar_width = bar_width
end
def render
"#{formatted_title}╟#{gradated_segments}╢ :: #{progress}/#{max}"
end
private
attr_reader :title, :progress, :max, :bar_width
def formatted_title
title ? "**#{title}** " : ''
end
def total_segments
bar_width * 2 # half-width * 4 deep
end
def segment_size
Rational(max, total_segments)
end
def progress_segments
(progress / segment_size).floor
end
def gradated_segments
half_width = bar_width / 2
elements = [0] * half_width
progress_segments.times do |_|
half_width.times do |i|
next if elements[i] == 4
if i == (half_width - 1) || elements[i] == elements[i+1]
elements[i] = elements[i] + 1
break
end
end
end
rendered = elements.collect { |x| ['─', '░', '▒', '▓', '█'][x] }.join
rendered.reverse + rendered
end
end
end