ModernBar

This is a concrete implementation of the abstract class Bar using the progress::progress_bar as engine for the progress bar.

See also

Bar, BasicBar, and BarFactory.

Super class

parabar::Bar -> ModernBar

Methods

Public methods

• ModernBar$new()

• ModernBar$create()

• ModernBar$update()

• ModernBar$terminate()

• ModernBar$clone()

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Method new()

Create a new ModernBar object.

Usage

ModernBar$new()

Returns

An object of class ModernBar.

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Method create()

Create a progress bar.

Usage

ModernBar$create(total, initial, ...)

Arguments

total

The total number of times the progress bar should tick.

initial

The starting point of the progress bar.

...

Additional arguments for the bar creation passed to progress::progress_bar$new().

Returns

This method returns void. The resulting bar is stored in the private field .bar, accessible via the active binding engine. Both the private field and the active binding are defined in the super class Bar.

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Method update()

Update the progress bar by calling progress::progress_bar$update().

Usage

ModernBar$update(current)

Arguments

current

The position the progress bar should be at (e.g., 30 out of 100), usually the index in a loop.

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Method terminate()

Terminate the progress bar by calling progress::progress_bar$terminate().

Usage

ModernBar$terminate()

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Method clone()

The objects of this class are cloneable with this method.

Usage

ModernBar$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.

Examples

# Create a modern bar instance.
bar <- ModernBar$new()

# Specify the number of ticks to be performed.
total <- 100

# Create the progress bar.
bar$create(total = total, initial = 0)

# Use the progress bar.
for (i in 1:total) {
    # Sleep a bit.
    Sys.sleep(0.02)

    # Update the progress bar.
    bar$update(i)
}

# Terminate the progress bar.
bar$terminate()