Class: Column

Inherits:
Object
  • Object
show all
Extended by:
Logging
Defined in:
lib/column.rb

Overview

Objects of this class represent columns in a spreadsheet table

Constant Summary collapse

@@log = 
self.init_logger
@@DEF_WIDTH = 
15
@@col_width = 
@@DEF_WIDTH
@@columns = 
Array.new

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Logging

init_logger, log_level=, log_target=

Methods included from File_Checking

#file_check, file_check

Constructor Details

#initialize(number = nil) ⇒ Column

Returns a new instance of Column.



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# File 'lib/column.rb', line 35

def initialize(number = nil)
  @log = @@log
  @number = number
  @cells = Array.new
  @width = @@col_width
  @@columns << self
end

Instance Attribute Details

#number ⇒ Object (readonly)

Returns the value of attribute number.



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# File 'lib/column.rb', line 86

def number
  @number
end

#width ⇒ Object (readonly)

Returns the value of attribute width.



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# File 'lib/column.rb', line 86

def width
  @width
end

Class Method Details

.col_width ⇒ Object 



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# File 'lib/column.rb', line 65

def self::col_width
  @@col_width
end

.col_width=(w) ⇒ Object 



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# File 'lib/column.rb', line 69

def self::col_width=(w)
  @@col_width = w
  @log.debug("self::col_width=(#{w}), calling resize")

  @@columns.each {|col| col.resize(w)}
end

Instance Method Details

#add(cell) ⇒ Object Also known as: << 



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# File 'lib/column.rb', line 43

def add(cell)
  n_cell = nil
  if cell.respond_to?(:to_cell)
    n_cell = cell
  elsif cell.respond_to?(:to_i)
    n_cell = Cell.new( cell, @number) 
  else
    msg = 'For a new cell, a row-number must be specified'
    @log.error(yellow(msg))
    raise StandardError(msg)
  end
  @cells.insert(n_cell.row, n_cell) 
  @cells.compact!
  set_limits
end

#each(&b) ⇒ Object 



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# File 'lib/column.rb', line 59

def each(&b)
  @cells.each do |c|
    yield(c) 
  end
end

#resize(width) ⇒ Object 



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# File 'lib/column.rb', line 76

def resize(width)
  @width = width
  @log.debug('calling resize')
  @cells.each {|cell| cell.resize}
end

#to_s ⇒ Object 



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# File 'lib/column.rb', line 82

def to_s
  '<' << self.class.name.dup << ':' << object_id.to_s << "{number=%s width=%s cells.length=}>" %[@number, @cells.length]
end