Class: Pruview::Document

Inherits:
Object
  • Object
show all
Defined in:
lib/pruview/document.rb

Constant Summary collapse

TMP_DIR = 
'/tmp'
PROCESS_FORMAT =

Configurations

'jpg'
GLOBAL_CMD_ARGS = 
'-limit memory 500mb'
PSD_EXT = 
'.psd'
POSTSCRIPT_EXT = 
['.pdf', '.eps', '.ai']
IMAGE_EXT = 
['.bmp', '.gif', '.jpg', '.jpeg', '.png', '.tga', '.tif', '.tiff', '.exr']

Instance Method Summary collapse

Constructor Details

#initialize(source, target_dir, target_permission = 0666) ⇒ Document

Returns a new instance of Document.

Raises:



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# File 'lib/pruview/document.rb', line 7

def initialize(source, target_dir, target_permission=0666)
  raise Pruview::Exceptions::InvalidError, "Invalid source file: #{source.to_s}" if !File.file?(source)
  raise Pruview::Exceptions::InvalidError, "Invalid target directory: #{target_dir.to_s}" if !File.directory?(target_dir)
  raise Pruview::Exceptions::InvalidError, "Document not supported - file extension: " + file_extension(source) if !format_supported?(source)
  @source = source
  @target_dir = target_dir
  @target_permission = target_permission
  @image = process_image(get_image(source))
  @tempfile = nil
end

Instance Method Details

#to_jpg(name, width, height, crop = false) ⇒ Object 



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# File 'lib/pruview/document.rb', line 18

def to_jpg(name, width, height, crop = false)
  scale_img = scale_image(width, height, crop)
  scale_img.format 'jpg'
  scale_img.combine_options do |img|
    img.quality '90'
    img.interlace 'plane'
  end
  tmp_target = File.join(TMP_DIR, "#{name.to_s}-#{$$}-#{Time.now.to_i}-#{rand(1000)}.jpg")
  scale_img.write(tmp_target)
  FileUtils.chmod(@target_permission, tmp_target)
  target = File.join(@target_dir, name.to_s + '.jpg')
  FileUtils.mv(tmp_target, target, :force => true)
  return target
end