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Contents
#!/usr/bin/env ruby -w
# encoding: UTF-8
#
# = FitDefinition.rb -- Fit4Ruby - FIT file processing library for Ruby
#
# Copyright (c) 2014 by Chris Schlaeger <cs@taskjuggler.org>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of version 2 of the GNU General Public License as
# published by the Free Software Foundation.
#
require 'bindata'
require 'fit4ruby/FitDefinitionField'
module Fit4Ruby
# The FitDefinition contains the blueprints for FitMessageRecord segments of
# FIT files. Before a message record can occur in a FIT file, its definition
# must be included in the FIT file. The definition holds enough information
# about the message record to define its size. It also contains some basic
# information how to interpret the data in the record. To fully understand
# the message record data the full definition in the GlobalFitMessage is
# required.
class FitDefinition < BinData::Record
hide :reserved
uint8 :reserved, :initial_value => 0
uint8 :architecture, :initial_value => 0
choice :global_message_number, :selection => :architecture do
uint16le 0
uint16be :default
end
uint8 :field_count
array :fields, :type => FitDefinitionField, :initial_length => :field_count
def endian
architecture.snapshot == 0 ? :little : :big
end
def check
if architecture.snapshot > 1
Log.fatal "Illegal architecture value #{architecture.snapshot}"
end
fields.each { |f| f.check }
end
def setup(fit_message_definition)
fit_message_definition.fields_by_number.each do |number, f|
fdf = FitDefinitionField.new
fdf.field_definition_number = number
fdf.set_type(f.type)
fields << fdf
end
self.field_count = fields.length
end
end
end
Version data entries
15 entries across 15 versions & 1 rubygems