Module: Drakkon::Images::Double

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

Overview

General Image Index Helper

Class Method Summary collapse

Class Method Details

.double(file, alpha) ⇒ Object 



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# File 'lib/drakkon/lib/images/double.rb', line 43

def self.double(file, alpha)
  image = MiniMagick::Image.open(file)

  LogBot.info('Image Double', "#{File.basename file}")

  # Create a copy of the image for overlay
  overlay = image.clone

  # Apply alpha to the overlay
  overlay = overlay.compose('Over') do |c|
    c.gravity 'center' # Center the overlay
    c.define "compose:args=1,0,0,#{alpha}" # Control the alpha
  end

  # Combine the original image and the overlay
  result = image.composite(overlay) do |c|
    c.gravity 'center' # Center the overlay on the original image
  end

  # Save the result
  result.write(file)
end

.images ⇒ Object 



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# File 'lib/drakkon/lib/images/double.rb', line 66

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

.prompt ⇒ Object 



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# File 'lib/drakkon/lib/images/double.rb', line 70

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

.run!(args = []) ⇒ Object 



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# File 'lib/drakkon/lib/images/double.rb', line 5

def self.run!(args = [])
  # Alpha
  alpha = if args.empty?
            prompt.ask('Amount of Doubled Alpha? (e.g. 0..1): ')
          else
            args.shift
          end
  LogBot.info('Double Image Alhpa', "Alpha: #{alpha}")

  puts <<~HELP
    Usage [alpha]
               - Run in the directory you wish to modify the images
               - Adds the layer onto itself with a alpha value via MiniMagick
    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

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

  start(alpha)
end

.start(alpha) ⇒ Object 



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

def self.start(alpha)
  images.each do |img|
    double(img, alpha)
  end
end