Class: CLI::UI::Glyph

Inherits:
Object
  • Object
show all
Defined in:
lib/cli/ui/glyph.rb

Defined Under Namespace

Classes: InvalidGlyphHandle

Constant Summary collapse

MAP =

Mapping of glyphs to terminal output

{}
STAR =

YELLOW SMALL STAR (โญ‘)

new('*', 0x2b51,           '*', Color::YELLOW)
INFO =

BLUE MATHEMATICAL SCRIPT SMALL i (๐’พ)

new('i', 0x1d4be,          'i', Color::BLUE)
QUESTION =

BLUE QUESTION MARK (?)

new('?', 0x003f,           '?', Color::BLUE)
CHECK =

GREEN CHECK MARK (โœ“)

new('v', 0x2713,           'โˆš', Color::GREEN)
X =

RED BALLOT X (โœ—)

new('x', 0x2717,           'X', Color::RED)
BUG =

Bug emoji (๐Ÿ›)

new('b', 0x1f41b,          '!', Color::WHITE)
CHEVRON =

RIGHT-POINTING DOUBLE ANGLE QUOTATION MARK (ยป)

new('>', 0xbb,             'ยป', Color::YELLOW)
HOURGLASS =

HOURGLASS + VARIATION SELECTOR 15 (โŒ›๏ธŽ)

new('H', [0x231b, 0xfe0e], 'H', Color::BLUE)

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(handle, codepoint, plain, color) ⇒ Glyph

Creates a new glyph

Attributes

  • handle - The handle in the MAP constant

  • codepoint - The codepoint used to create the glyph (e.g. 0x2717 for a ballot X)

  • plain - A fallback plain string to be used in case glyphs are disabled

  • color - What color to output the glyph. Check CLI::UI::Color for options.


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# File 'lib/cli/ui/glyph.rb', line 30

def initialize(handle, codepoint, plain, color)
  @handle    = handle
  @codepoint = codepoint
  @color     = color
  @plain     = plain
  @char      = Array(codepoint).pack('U*')
  @to_s      = color.code + char + Color::RESET.code
  @fmt       = "{{#{color.name}:#{char}}}"

  MAP[handle] = self
end

Instance Attribute Details

#codepointObject (readonly)

Returns the value of attribute codepoint


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# File 'lib/cli/ui/glyph.rb', line 19

def codepoint
  @codepoint
end

#colorObject (readonly)

Returns the value of attribute color


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# File 'lib/cli/ui/glyph.rb', line 19

def color
  @color
end

#fmtObject (readonly)

Returns the value of attribute fmt


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# File 'lib/cli/ui/glyph.rb', line 19

def fmt
  @fmt
end

#handleObject (readonly)

Returns the value of attribute handle


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# File 'lib/cli/ui/glyph.rb', line 19

def handle
  @handle
end

#to_sObject (readonly)

Returns the value of attribute to_s


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# File 'lib/cli/ui/glyph.rb', line 19

def to_s
  @to_s
end

Class Method Details

.availableObject

All available glyphs by name


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# File 'lib/cli/ui/glyph.rb', line 78

def self.available
  MAP.keys
end

.lookup(name) ⇒ Object

Looks up a glyph by name

Raises

Raises a InvalidGlyphHandle if the glyph is not available You likely need to create it with .new or you made a typo

Returns

Returns a terminal output-capable string


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# File 'lib/cli/ui/glyph.rb', line 70

def self.lookup(name)
  MAP.fetch(name.to_s)
rescue KeyError
  raise InvalidGlyphHandle, name
end

Instance Method Details

#charObject

Fetches the actual character(s) to be displayed for a glyph, based on the current OS support

Returns

Returns the glyph string


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# File 'lib/cli/ui/glyph.rb', line 46

def char
  CLI::UI::OS.current.supports_emoji? ? @char : @plain
end