› Samovar › Source › Samovar › Output › Columns

class Columns

Represents column widths for aligned output formatting.

Calculates the maximum width of each column across all rows for proper text alignment.

Definitions

def initialize(rows)

Initialize column width calculator.

Signature
parameter　rows　Array(Array)

The rows to calculate column widths from.

Implementation

 
def initialize(rows)
	@rows = rows
	@widths = calculate_widths(rows)
end

attr :widths

The calculated column widths.

Signature
attribute　Array(Integer)

def calculate_widths(rows)

Calculate the maximum width for each column.

Signature
parameter　rows　Array(Array)

The rows to analyze.

returns　Array(Integer)

The maximum width of each column.

Implementation

 
def calculate_widths(rows)
	widths = []
	
	rows.each do |row|
		row.each.with_index do |column, index|
			(widths[index] ||= []) << column.size
		end
	end
	
	return widths.collect(&:max)
end