Class: HMS::Duration

Inherits:
Numeric
  • Object
show all
Extended by:
Forwardable
Includes:
Comparable
Defined in:
lib/hms/duration.rb

Overview

Represents durations in hh:mm:ss format

Parts taken from gist.github.com/309694

Instance Method Summary collapse

Constructor Details

#initialize(val = 0) ⇒ Duration

Returns a new instance of Duration.



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# File 'lib/hms/duration.rb', line 10

def initialize(val = 0)
  case val
  when String
    @seconds = parse_string(val)
  when Numeric
    @seconds = val.to_i
  when nil
    @seconds = 0
  else
    raise ArgumentError, "Cannot convert #{val} to Duration"
  end
end

Instance Method Details

#%(other) ⇒ Object 



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# File 'lib/hms/duration.rb', line 121

def %(other)
  op(:%, other)
end

#*(other) ⇒ Object 



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# File 'lib/hms/duration.rb', line 109

def *(other)
  op(:*, other)
end

#**(other) ⇒ Object 



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# File 'lib/hms/duration.rb', line 113

def **(other)
  op(:**, other)
end

#+(other) ⇒ Object 



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# File 'lib/hms/duration.rb', line 101

def +(other)
  op(:+, other)
end

#+@ ⇒ Object 



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# File 'lib/hms/duration.rb', line 93

def +@
  self
end

#-(other) ⇒ Object 



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# File 'lib/hms/duration.rb', line 105

def -(other)
  op(:-, other)
end

#-@ ⇒ Object 



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# File 'lib/hms/duration.rb', line 97

def -@
  Duration.new(-@seconds)
end

#/(other) ⇒ Object 



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# File 'lib/hms/duration.rb', line 117

def /(other)
  op(:/, other)
end

#<=>(other) ⇒ Object 



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# File 'lib/hms/duration.rb', line 81

def <=>(other)
  case other
  when Duration
    @seconds <=> other.to_i
  when Numeric
    @seconds <=> other
  else
    a, b = other.coerce(self)
    a <=> b
  end rescue nil
end

#==(other) ⇒ Object 



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# File 'lib/hms/duration.rb', line 71

def ==(other)
  @seconds == other.to_i
end

#coerce(other) ⇒ Object 



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# File 'lib/hms/duration.rb', line 23

def coerce(other)
  [Duration.new(other.to_i), self]
end

#eql?(other) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/hms/duration.rb', line 67

def eql?(other)
  self.class.equal?(other.class) && @seconds == other.to_i
end

#hours ⇒ Object

returns the hours part of the total duration



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# File 'lib/hms/duration.rb', line 44

def hours
  @seconds.abs / 60 / 60  * (@seconds < 0 ? -1 : 1)
end

#minutes ⇒ Object

returns the hours part of the total duration



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# File 'lib/hms/duration.rb', line 51

def minutes
  (@seconds.abs / 60) % 60 * (@seconds < 0 ? -1 : 1)
end

#seconds ⇒ Object

Returns the seconds part of the total duration. For the total in seconds use #to_i.



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# File 'lib/hms/duration.rb', line 59

def seconds
  @seconds.abs % 60 * (@seconds < 0 ? -1 : 1)
end

#to_f ⇒ Object

returns the total duration in seconds



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# File 'lib/hms/duration.rb', line 37

def to_f
  @seconds.to_f
end

#to_i ⇒ Object

returns the total duration in seconds



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# File 'lib/hms/duration.rb', line 30

def to_i
  @seconds
end

#to_s ⇒ Object 



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# File 'lib/hms/duration.rb', line 63

def to_s
  "#{'-' if @seconds < 0}#{'%02d' % hours.abs}:#{'%02d' % minutes.abs}:#{'%02d' % seconds.abs}"
end