Module: Drakkon::Images::Roll

Defined in:
lib/drakkon/lib/images/roll.rb

Overview

Roll Images like an old TV imagemagick.org/Usage/warping/#roll

Class Method Summary collapse

Class Method Details

.images ⇒ Object 



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# File 'lib/drakkon/lib/images/roll.rb', line 57

def self.images
  Dir["#{Dir.pwd}/**/*.png"]
end

.process(file, amount) ⇒ Object 



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# File 'lib/drakkon/lib/images/roll.rb', line 44

def self.process(file, amount)
  image = MiniMagick::Image.open(file)

  LogBot.info('Image Roll', "Rolling: #{file}")

  img = image.combine_options do |cmd|
    cmd.background 'transparent'
    cmd.roll amount
  end

  img.write file
end

.prompt ⇒ Object 



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# File 'lib/drakkon/lib/images/roll.rb', line 61

def self.prompt
  TTY::Prompt.new(active_color: :cyan, interrupt: :exit)
end

.run!(args = []) ⇒ Object 



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# File 'lib/drakkon/lib/images/roll.rb', line 6

def self.run!(args = [])
  # Amount
  amount = if args.empty?
             prompt.ask('Roll Amount(+-LR+-UD)? (e.g. -10+0): ')
           else
             args.shift
           end

  puts <<~HELP
              Usage [WxH] [gravity]
              - Run in the directory you wish to modify the images
              - Rolls the images via MiniMagick

    Roll: Amount: #{amount}
              Current Directory;
                #{Dir.pwd.pastel(:yellow)}

    Images:
  HELP

  images.sort.each do |img|
    img_s = img.gsub("#{Dir.pwd}/", '').pastel(:yellow)
    puts "  - #{img_s}"
  end
  puts

  exit unless prompt.yes? "#{'Are you sure?'.pastel(:bright_yellow)} Roll!? #{'(Destructive)'.pastel(:red)}"

  start(amount)
end

.start(amount) ⇒ Object 



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# File 'lib/drakkon/lib/images/roll.rb', line 37

def self.start(amount)
  images.each do |img|
    LogBot.info('Image Roll', img)
    process(img, amount)
  end
end