Module: ColumnPack::ViewHelpers

Defined in:
lib/column_pack/view_helpers.rb

Instance Method Summary collapse

Instance Method Details

#pack_element(height, content = nil, &block) ⇒ Object

Packs a single element with a given height into a column.

pack_element should be called withing pack_in_columns’s block:

 pack_in_columns(3) do
   pack_element(100) do
     "A"
   end
end

Accepts parameter strings or block content (ERB, strings, etc).



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# File 'lib/column_pack/view_helpers.rb', line 40

def pack_element(height, content = nil, &block)
  return if @column_packer.nil?

  if block_given?
    @column_packer.add(height.to_i, capture(&block))
  else
    @column_packer.add(height.to_i, content)
  end
end

#pack_in_columns(total_columns, options = {}) ⇒ Object

Packs content into columns.

pack_in_columns expect a block to be passed:

 pack_in_columns(3) do
   pack_element(100) do
     "A"
   end
end

Options: :algorithm specify a different bin packing algorithm (default :best_fit_decreasing)

available algorithms are :best_fit_decreasing, :best_fit_increasing

:shuffle_in_col after packing columns, shuffle the elements in each column (defaults to true)



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# File 'lib/column_pack/view_helpers.rb', line 20

def pack_in_columns(total_columns, options = {})
  @column_packer = ColumnPacker.new(total_columns, options)

  yield

  @column_packer.render
end