Class: ProgressBar

Inherits:
Object
  • Object
show all
Defined in:
lib/tapsoob/progress_bar.rb

Overview

Ruby/ProgressBar - a text progress bar library

Copyright © 2001-2005 Satoru Takabayashi <satoru@namazu.org>

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, ThreadSafeProgressBar

Constant Summary collapse

VERSION = 
"0.9"

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

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

Returns a new instance of ProgressBar.



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# File 'lib/tapsoob/progress_bar.rb', line 16

def initialize (title, total, out = STDOUT, title_width = nil)
  @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
  # Set title width: use provided width, or accommodate the title, with a minimum of 14
  @title_width = title_width || [title.length, 14].max
  @format = "%-#{@title_width}s %3d%% %s %s"
  @format_arguments = [:title, :percentage, :bar, :stat]
  clear
  show
end

Instance Attribute Details

#current ⇒ Object (readonly)

Returns the value of attribute current.



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# File 'lib/tapsoob/progress_bar.rb', line 35

def current
  @current
end

#start_time ⇒ Object

Returns the value of attribute start_time.



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# File 'lib/tapsoob/progress_bar.rb', line 37

def start_time
  @start_time
end

#title ⇒ Object (readonly)

Returns the value of attribute title.



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# File 'lib/tapsoob/progress_bar.rb', line 34

def title
  @title
end

#total ⇒ Object (readonly)

Returns the value of attribute total.



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# File 'lib/tapsoob/progress_bar.rb', line 36

def total
  @total
end

Instance Method Details

#clear ⇒ Object 



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# File 'lib/tapsoob/progress_bar.rb', line 179

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

#file_transfer_mode ⇒ Object 



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# File 'lib/tapsoob/progress_bar.rb', line 195

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

#finish ⇒ Object 



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# File 'lib/tapsoob/progress_bar.rb', line 185

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

#finished? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/tapsoob/progress_bar.rb', line 191

def finished?
  @finished_p
end

#format=(format) ⇒ Object 



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# File 'lib/tapsoob/progress_bar.rb', line 199

def format= (format)
  @format = format
end

#format_arguments=(arguments) ⇒ Object 



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# File 'lib/tapsoob/progress_bar.rb', line 203

def format_arguments= (arguments)
  @format_arguments = arguments
end

#halt ⇒ Object 



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# File 'lib/tapsoob/progress_bar.rb', line 207

def halt
  @finished_p = true
  show
end

#inc(step = 1) ⇒ Object 



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# File 'lib/tapsoob/progress_bar.rb', line 212

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

#inspect ⇒ Object 



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# File 'lib/tapsoob/progress_bar.rb', line 228

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

#set(count) ⇒ Object 



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# File 'lib/tapsoob/progress_bar.rb', line 219

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