Class: JekyllRecker::Generators::ImageResize

Inherits:
Jekyll::Generator
  • Object
show all
Includes:
Mixins::Logging
Defined in:
lib/jekyll_recker/generators.rb

Overview

Image Resize Generator

Instance Method Summary collapse

Methods included from Mixins::Logging

#logger

Instance Method Details

#generate(site) ⇒ Object 



12
13
14
15
16
17
18
19
20
 
# File 'lib/jekyll_recker/generators.rb', line 12

def generate(site)
  @site = site
  logger.info 'checking images'
  resizeable_images.each do |f, d|
    logger.info "resizing #{f} to fit #{d}"
    image = MiniMagick::Image.new(f)
    image.resize d
  end
end

#image?(file) ⇒ Boolean

Returns:

  • (Boolean) 


22
23
24
 
# File 'lib/jekyll_recker/generators.rb', line 22

def image?(file)
  ['.jpg', 'jpeg', '.png', '.svg'].include? File.extname(file)
end

#images ⇒ Object 



30
31
32
 
# File 'lib/jekyll_recker/generators.rb', line 30

def images
  @site.static_files.collect(&:path).select { |f| image?(f) }
end

#resizeable_images ⇒ Object 



34
35
36
37
38
39
40
41
42
43
44
45
 
# File 'lib/jekyll_recker/generators.rb', line 34

def resizeable_images
  with_sizes = images.map { |f| [f, FastImage.size(f)].flatten }
  with_sizes.select! { |f| too_big?(f[1], f[2]) }
  with_sizes.map do |f, w, h|
    dimensions = if w > h
                   '800x600'
                 else
                   '600x800'
                 end
    [f, dimensions]
  end
end

#too_big?(width, height) ⇒ Boolean

Returns:

  • (Boolean) 


26
27
28
 
# File 'lib/jekyll_recker/generators.rb', line 26

def too_big?(width, height)
  width > 800 || height > 800
end