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Contents
require 'dragonfly_libvips/analysers/image_properties'
require 'dragonfly_libvips/processors/encode'
require 'dragonfly_libvips/processors/extract_area'
require 'dragonfly_libvips/processors/rotate'
require 'dragonfly_libvips/processors/thumb'
module DragonflyLibvips
class Plugin
def call(app, _opts = {})
# Analysers
app.add_analyser :image_properties, DragonflyLibvips::Analysers::ImageProperties.new
%w[ width
height
xres
yres
format
].each do |name|
app.add_analyser(name) { |c| c.analyse(:image_properties)[name] }
end
app.add_analyser(:aspect_ratio) { |c| c.analyse(:width).to_f / c.analyse(:height).to_f }
app.add_analyser(:portrait) { |c| c.analyse(:aspect_ratio) < 1.0 }
app.add_analyser(:landscape) { |c| !c.analyse(:portrait) }
app.add_analyser(:image) do |c|
begin
c.analyse(:image_properties).key?('format')
rescue ::Vips::Error
false
end
end
# Aliases
app.define(:portrait?) { portrait }
app.define(:landscape?) { landscape }
app.define(:image?) { image }
# Processors
app.add_processor :encode, Processors::Encode.new
app.add_processor :extract_area, Processors::ExtractArea.new
app.add_processor :thumb, Processors::Thumb.new
app.add_processor :rotate, Processors::Rotate.new
end
end
end
Dragonfly::App.register_plugin(:libvips) { DragonflyLibvips::Plugin.new }
Version data entries
9 entries across 9 versions & 1 rubygems