Sha256: 9fcabc1c5ee8e2eb287711b317bde8901451924072c4ea6de2e46fb32708bd98
Contents?: true
Size: 1.63 KB
Versions: 38
Compression:
Stored size: 1.63 KB
Contents
# -*- coding: utf-8 -*-
###############################################################################
#
# External - A writer class for Excel external charts.
#
# Used in conjunction with WriteExcel
#
# perltidy with options: -mbl=2 -pt=0 -nola
#
# Copyright 2000-2010, John McNamara, jmcnamara@cpan.org
#
# original written in Perl by John McNamara
# converted to Ruby by Hideo Nakamura, cxn03651@msj.biglobe.ne.jp
#
require 'writeexcel/chart'
module Writeexcel
class External < Chart # :nodoc:
###############################################################################
#
# new()
#
def initialize(external_filename, *args)
super(*args)
@filename = external_filename
@external_bin = true
_initialize # Requires overridden initialize().
self
end
###############################################################################
#
# _initialize()
#
# Read all the data into memory for the external binary style chart.
#
def _initialize
filename = @filename
filehandle = File.open(filename, 'rb')
@filehandle = filehandle
@datasize = FileTest.size(filename)
@using_tmpfile = false
# Read the entire external chart binary into the the data buffer.
# This will be retrieved by _get_data() when the chart is closed().
@data = @filehandle.read(@datasize)
end
###############################################################################
#
# _close()
#
# We don't need to create or store Chart data structures when using an
# external binary, so we have a default close method.
#
def close
nil
end
end # class Chart
end # module Writeexcel
Version data entries
38 entries across 38 versions & 3 rubygems