Class: ProgressBar

Inherits:
Object show all
Defined in:
lib/epitools/progressbar.rb

Overview

Ruby/ProgressBar - a text progress bar library

Copyright © 2001-2005 Satoru Takabayashi <[email protected]> Copyright © 2010 Chris Gahan <[email protected]>

All rights reserved.
This is free software with ABSOLUTELY NO WARRANTY.

You can redistribute it and/or modify it under the terms of Ruby’s license.

Direct Known Subclasses

ReversedProgressBar

Constant Summary collapse

VERSION = 
"0.10"

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(title, total = nil, out = STDERR) ⇒ ProgressBar

Returns a new instance of ProgressBar.



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# File 'lib/epitools/progressbar.rb', line 16

def initialize (title, total=nil, out = STDERR)
  @title = title
  @total = total
  @out = out
  @terminal_width = 80
  @bar_mark = "."
  @current = 0
  @previous = 0
  @finished_p = false
  @start_time = Time.now
  @previous_time = @start_time
  @title_width = 18
  #@format = "%-#{@title_width}s %3d%% %s %s"
  if @total
    #@format_arguments = [:title, :percentage, :bar, :stat_for_file_transfer]
    @format_arguments = [:title, :percentage, :stat_for_file_transfer]
  else
    @format_arguments = [:title, :stat_for_file_transfer]
  end

  clear
  show
end

Instance Attribute Details

#current ⇒ Object (readonly)

Returns the value of attribute current.



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# File 'lib/epitools/progressbar.rb', line 41

def current
  @current
end

#start_time ⇒ Object

Returns the value of attribute start_time.



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# File 'lib/epitools/progressbar.rb', line 43

def start_time
  @start_time
end

#title ⇒ Object (readonly)

Returns the value of attribute title.



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# File 'lib/epitools/progressbar.rb', line 40

def title
  @title
end

#total ⇒ Object (readonly)

Returns the value of attribute total.



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# File 'lib/epitools/progressbar.rb', line 42

def total
  @total
end

Instance Method Details

#clear ⇒ Object 



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# File 'lib/epitools/progressbar.rb', line 202

def clear
  @out.print "\r"
  @out.print(" " * (get_width - 1))
  @out.print "\r"
end

#file_transfer_mode ⇒ Object 



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# File 'lib/epitools/progressbar.rb', line 218

def file_transfer_mode
  @format_arguments = [:title, :percentage, :bar, :stat_for_file_transfer]
end

#finish ⇒ Object 



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# File 'lib/epitools/progressbar.rb', line 208

def finish
  @current = @total if @total
  @finished_p = true
  show
end

#finished? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/epitools/progressbar.rb', line 214

def finished?
  @finished_p
end

#format=(format) ⇒ Object 



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# File 'lib/epitools/progressbar.rb', line 222

def format=(format)
  @format = format
end

#format_arguments=(arguments) ⇒ Object 



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# File 'lib/epitools/progressbar.rb', line 226

def format_arguments=(arguments)
  @format_arguments = arguments
end

#halt ⇒ Object 



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# File 'lib/epitools/progressbar.rb', line 230

def halt
  @finished_p = true
  show
end

#inc(step = 1) ⇒ Object 



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# File 'lib/epitools/progressbar.rb', line 235

def inc(step = 1)
  @current += step
  @current = @total if @total and @current > @total
  show_if_needed
  @previous = @current
end

#inspect ⇒ Object 



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# File 'lib/epitools/progressbar.rb', line 251

def inspect
  "#<ProgressBar:#{@current}/#{@total}>"
end

#set(count) ⇒ Object 



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# File 'lib/epitools/progressbar.rb', line 242

def set(count)
  if @total and (count < 0 || count > @total)
    raise "invalid count: #{count} (total: #{@total})"
  end
  @current = count
  show_if_needed
  @previous = @current
end