Class: CSSensible::VerticalGrid
- Inherits:
-
Object
- Object
- CSSensible::VerticalGrid
- Defined in:
- lib/cssensible/vertical_grid.rb
Instance Method Summary collapse
-
#initialize(base_font_sizes, line_height, font_sizes_to_line_height) ⇒ VerticalGrid
constructor
Returns a new vertical grid.
-
#ten_pixel ⇒ Object
Returns em-value to calculate 10px based on font_size or nil if the value is not usable (see EmValue.usable?).
- #to_s ⇒ Object
Constructor Details
#initialize(base_font_sizes, line_height, font_sizes_to_line_height) ⇒ VerticalGrid
Returns a new vertical grid.
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# File 'lib/cssensible/vertical_grid.rb', line 5 def initialize(base_font_sizes, line_height, font_sizes_to_line_height) @base_font_sizes = base_font_sizes @line_height = line_height @font_sizes_to_line_height = font_sizes_to_line_height end |
Instance Method Details
#ten_pixel ⇒ Object
Returns em-value to calculate 10px based on font_size or nil if the value is not usable (see EmValue.usable?)
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# File 'lib/cssensible/vertical_grid.rb', line 13 def ten_pixel ten_pixel.usable? ? ten_pixel : nil end |
#to_s ⇒ Object
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# File 'lib/cssensible/vertical_grid.rb', line 17 def to_s vertical_grid = "line-height: #{@line_height}px" vertical_grid += " (#{@font_sizes_to_line_height.size} font-sizes)\n" vertical_grid += "\n" vertical_grid += "font-size (px)".center(18) vertical_grid += "|" vertical_grid += "line-height (px)".center(20) vertical_grid += "|" vertical_grid += "line-height (em)".center(20) vertical_grid += "\n" vertical_grid += "------------------+--------------------+--------------------\n" @font_sizes_to_line_height.each do |font_size, line_height_em| vertical_grid += " #{font_size}#{'*' if @base_font_sizes.include?(font_size)}".ljust(18) vertical_grid += "|" vertical_grid += " #{(font_size * line_height_em).to_i}".ljust(20) vertical_grid += "|" vertical_grid += " #{line_height_em}".ljust(20) vertical_grid += "\n" end vertical_grid end |