Class: AmpleAssets::CustomProcessor

Inherits:
Object
  • Object
show all
Includes:
Dragonfly::Configurable, Dragonfly::ImageMagick::Utils
Defined in:
lib/ample_assets/custom_processor.rb

Instance Method Summary collapse

Instance Method Details

#matte(temp_object, args = {}) ⇒ Object 



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# File 'lib/ample_assets/custom_processor.rb', line 7

def matte(temp_object, args={})
  opts = {
    :background => 'transparent',
    :gravity => 'Center',
    :dimensions => '100x100'
  }.merge(args)
  raise "Geometry of #{opts[:dimensions]} not supported for matte images" unless opts[:dimensions][/^(\d+)x(\d+)$/]
  convert(temp_object, "-gravity #{opts[:gravity]} -resize #{opts[:dimensions]}^> -crop #{opts[:dimensions]}+0+0>\! -background #{opts[:background]} -flatten")
end

#play_button(temp_object) ⇒ Object 



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# File 'lib/ample_assets/custom_processor.rb', line 17

def play_button(temp_object)
  attrs = identify(temp_object)
  # hardcoded for convenience
  icon_size = 500.to_f
  shortest_edge = [attrs[:width], attrs[:height]].max.to_f
  scale = (shortest_edge / 3) / icon_size
  final_icon_size = (scale * icon_size).to_i
  geometry = "#{final_icon_size}x#{final_icon_size}+#{(attrs[:width]/2)-(final_icon_size/2)}+#{(attrs[:height]/2)-(final_icon_size/2)}"
  convert(temp_object, "#{AmpleAssets::Engine.root}/app/assets/images/ample_assets/play.png -geometry #{geometry} -composite")
end