Class: Color::FullPalette

Inherits:
Palette
  • Object
show all
Defined in:
lib/color/full_palette.rb

Instance Attribute Summary

Attributes inherited from Palette

#background, #brightness_end, #brightness_start, #brightness_step, #saturation_end, #saturation_start, #saturation_step

Instance Method Summary collapse

Methods inherited from Palette

#colors_by_hue, #print_as_html, #print_as_text, #print_html_color, #print_html_hue_line

Constructor Details

#initialize(hues, args = Hash.new) ⇒ FullPalette

Returns a new instance of FullPalette.



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# File 'lib/color/full_palette.rb', line 15

def initialize(hues, args = Hash.new)
  super(args)

  # hue => saturation => brightness => rgb
  @colors = Array.new
  
  hues.each do |hue|
    (saturation_start .. saturation_end).step(saturation_step) do |sat|
      (brightness_start .. brightness_end).step(brightness_step) do |brt|
        hsb = HSB.new hue, sat / 100.0, brt / 100.0
        @colors << hsb
      end
    end
  end
end

Instance Method Details

#colors ⇒ Object 



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# File 'lib/color/full_palette.rb', line 31

def colors
  @colors
end

#print_html_tables(io = $stdout) ⇒ Object 



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# File 'lib/color/full_palette.rb', line 39

def print_html_tables(io = $stdout)
  n_columns = 1 + (@brightness_end - @brightness_start) / @brightness_step

  # want the output to be:

  # +-------------------------------------------------------+
  # + hue[0]                                                +
  # + +-----------------------------------------------------+
  # + + sat[0]                                              +
  # + +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ 
  # + + r/b + + r/b + + r/b + + r/b + + r/b + + r/b + + r/b +
  # + +     + +     + +     + +     + +     + +     + +     +
  # + +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+
  # + + sat[1]                                              +
  # + +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ 
  # + + r/b + + r/b + + r/b + + r/b + + r/b + + r/b + + r/b +
  # + +     + +     + +     + +     + +     + +     + +     +
  # + +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+
  # +-------------------------------------------------------+
  # + hue[1]                                                +
  # + +-----------------------------------------------------+
  # + + sat[0]                                              +
  # + +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ 
  # + + r/b + + r/b + + r/b + + r/b + + r/b + + r/b + + r/b +
  # + +     + +     + +     + +     + +     + +     + +     +
  # + +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+
  # + + sat[1]                                              +
  # + +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ 
  # + + r/b + + r/b + + r/b + + r/b + + r/b + + r/b + + r/b +
  # + +     + +     + +     + +     + +     + +     + +     +
  # + +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+
  # +-------------------------------------------------------+

  cellwidth = 100 / n_columns

  level = 1
  
  colors_by_hue.sort.each do |hue, by_saturation|
    puts_indented io, 1, '<table width="100%">'

    puts_indented io, 2, '<tr>'
    
    textcolor = @background.nil? || @background.index(%r{[A-Z]\w}) ? "000000" : "FFFFFF"
    puts_indented io, 3, "<td style=\"color: \##{textcolor};\">hue #{hue} &deg;</td>"
    
    puts_indented io, 2, '</tr>'

    by_saturation.sort.each do |sat, by_brightness|
      puts_indented io, 2, '<tr>'
      puts_indented io, 3, '<td>'

      puts_indented io, 4, '<table width="100%">'
      puts_indented io, 5, '<tr>'
      puts_indented io, 6, "<td colspan=#{n_columns}>"

      puts_indented io, 7, "saturation: #{sat}"

      puts_indented io, 6, '</td>'
      puts_indented io, 5, '</tr>'

      puts_indented io, 5, '<tr>'

      by_brightness.sort.reverse.each do |brt, hsb|
        rgbstr = sprintf("%06x", hsb.to_rgb)
        
        puts_indented io, 6, "<td style=\"width: #{cellwidth}%; vertical-align: bottom; border:2px outset; border-collapse:collapse;\">"
        
        puts_indented io, 7, "<table width=\"100%\" border=\"0\" border-width=\"4px\">"
        
        stylestr = @background ? " style=\"color: \##{rgbstr};\"" : ""
        
        text = sprintf "\#%s; b: %3.2f", rgbstr, brt
          
        puts_indented io, 8, '<tr><td' + stylestr + '>' + text + '</td></tr'

        puts_indented io, 8, "<tr><td style=\"background-color: \##{rgbstr}; vertical-align: bottom;\"><br>&nbsp;</td></tr>"

        puts_indented io, 7, "</table>"
        puts_indented io, 6, "</td>"
      end

      puts_indented io, 5, '</tr>'

      puts_indented io, 4, '</table>'

      puts_indented io, 3, '</td>'
      puts_indented io, 2, '</tr>'

    end

    puts_indented io, 1, '</table>'
  end
  
  return nil if true
    

  colors_by_hue.sort.each do |hue, by_saturation|
    print_html_hue_line(io, hue, n_columns)

    io.puts "<table width=\"100%\">"
    io.puts "    <tr>"
  
    by_saturation.sort.each do |sat, by_brightness|
      by_brightness.sort.reverse.each do |brt, hsb|
        io.puts "    <tr>"

        # this is one color per row, for now
        print_html_color(io, sat, brt, hsb.to_rgb, 100 / n_columns)

        io.puts "    </tr>"
      end
    end
    io.puts "</table>"
    io.puts "<br/>"
  end
end

#puts_indented(io, level, msg) ⇒ Object 



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# File 'lib/color/full_palette.rb', line 35

def puts_indented(io, level, msg)
  io.puts((' ' * (4 * level)) + msg)
end