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84 lines
1.3 KiB
Ruby
84 lines
1.3 KiB
Ruby
class Brush
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ALLOWED_ATTRIBUTES = [:fg, :bg, :bold, :underline, :inverse, :blink]
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DEFAULT_FG_CODE = 7
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DEFAULT_BG_CODE = 0
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def initialize(attributes = {})
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@attributes = attributes.symbolize_keys
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end
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def ==(other)
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fg == other.fg &&
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bg == other.bg &&
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bold? == other.bold? &&
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underline? == other.underline? &&
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blink? == other.blink?
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end
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def fg
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inverse? ? bg_code || DEFAULT_BG_CODE : fg_code
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end
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def bg
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inverse? ? fg_code || DEFAULT_FG_CODE : bg_code
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end
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def bold?
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!!attributes[:bold]
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end
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def underline?
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!!attributes[:underline]
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end
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def inverse?
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!!attributes[:inverse]
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end
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def blink?
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!!attributes[:blink]
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end
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def default?
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fg.nil? && bg.nil? && !bold? && !underline? && !inverse? && !blink?
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end
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def as_json(*)
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attributes.slice(*ALLOWED_ATTRIBUTES)
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end
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def self.rgb_color?(col)
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col.is_a?(Enumerable)
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end
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def self.simple_color?(col)
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col.is_a?(Fixnum)
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end
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protected
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attr_reader :attributes
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private
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def fg_code
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calculate_code(:fg, bold?)
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end
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def bg_code
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calculate_code(:bg, blink?)
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end
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def calculate_code(attr_name, strong)
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code = attributes[attr_name]
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if Brush.simple_color?(code) && code < 8 && strong
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code += 8
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end
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code
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end
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end
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