Class: Term::ANSIColor::PPMReader

Inherits:
Object
  • Object
show all
Includes:
Term::ANSIColor
Defined in:
lib/term/ansicolor/ppm_reader.rb

Constant Summary

Constants included from Term::ANSIColor

COLORED_REGEXP, VERSION, VERSION_ARRAY, VERSION_BUILD, VERSION_MAJOR, VERSION_MINOR

Instance Method Summary collapse

Methods included from Term::ANSIColor

#apply_attribute, #apply_code, attributes, #color, coloring=, coloring?, #on_color, #term_ansicolor_attributes, term_ansicolor_attributes, true_coloring=, true_coloring?, #uncolor

Methods included from Attribute::Underline

#underline

Methods included from Hyperlink

#hyperlink

Methods included from Movement

#clear_screen, #erase_in_display, #erase_in_line, #hide_cursor, #move_backward, #move_down, #move_forward, #move_home, #move_to, #move_to_column, #move_to_line, #move_to_next_line, #move_to_previous_line, #move_up, #restore_position, #return_to_position, #save_position, #scroll_down, #scroll_up, #show_cursor, #terminal_columns, #terminal_lines

Constructor Details

#initialize(io, options = {}) ⇒ PPMReader

Returns a new instance of PPMReader.



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# File 'lib/term/ansicolor/ppm_reader.rb', line 6

def initialize(io, options = {})
  @io            = io
  @options       = options
  @buffer        = ''.dup
  if options[:true_coloring]
    @color = -> pixel { on_color Attribute.true_color(pixel, @options) }
  else
    @color = -> pixel { on_color Attribute.nearest_rgb_color(pixel, @options) }
  end
end

Instance Method Details

#reset_io ⇒ Object 



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# File 'lib/term/ansicolor/ppm_reader.rb', line 17

def reset_io
  begin
    @io.rewind
  rescue Errno::ESPIPE
  end
  parse_header
end

#rows ⇒ Object 



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# File 'lib/term/ansicolor/ppm_reader.rb', line 25

def rows
  reset_io

  Enumerator.new do |yielder|
    @height.times do
      yielder.yield parse_row
    end
  end
end

#to_a ⇒ Object 



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# File 'lib/term/ansicolor/ppm_reader.rb', line 35

def to_a
  rows.to_a
end

#to_s ⇒ Object 



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# File 'lib/term/ansicolor/ppm_reader.rb', line 39

def to_s
  rows.map do |row|
    last_pixel = nil
    row.map do |pixel|
      if pixel != last_pixel
        last_pixel = pixel
        @color.(pixel) << ' '
      else
        ' '
      end
    end.join << reset << ?\n
  end.join
end