Class: Klear::FileGenerator

Inherits:
Object
  • Object
show all
Includes:
Java
Defined in:
lib/klear/file_generator.rb

Overview

TODO maybe use Zip::ZipOutputStream for generating the zip first in-memory? TODO extract java/jruby specific stuff

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ FileGenerator

Returns a new instance of FileGenerator.



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# File 'lib/klear/file_generator.rb', line 6

def initialize options = {}
  @png_path = nil
  @kle_path = nil
  @fps = 25
  if options.has_key? :fps
    @fps = options[:fps]
  end
  @gamma = 1.0
  if options.has_key? :gamma
    @gamma = options[:gamma]
  end
  @geometry = nil
  @raw_frame_values = []
  @kle_file = nil
  @silent = true
  if options.has_key? :silent
    @silent = !!options[:silent]
  end
end

Instance Method Details

#generate(thePngPath, theKleFile) ⇒ Object 



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# File 'lib/klear/file_generator.rb', line 60

def generate thePngPath, theKleFile
  @png_path = thePngPath
  @kle_path = theKleFile
  if File.exists? @kle_path
    raise "File #{@kle_path} already exists"
  end
  write
  report
end

#load ⇒ Object 



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# File 'lib/klear/file_generator.rb', line 26

def load
  Zip::ZipFile.open(@kle_path) { |kle|
    @kle_file = kle
  }
end

#regenerate(theKleFile) ⇒ Object 



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# File 'lib/klear/file_generator.rb', line 86

def regenerate theKleFile
  @kle_path = theKleFile
  load
  regenerate_cache
end

#report ⇒ Object 



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# File 'lib/klear/file_generator.rb', line 70

def report
  report = <<-REPORT

Input  Directory : '#{@png_path}'
Output KleFile : '#{@kle_path}'

Details:
  * number of [png files|frames]: #{@kle_file.dir.entries("/frames").size}
  * fps: #{@fps}
  * gamma : #{@gamma}
  * geometry : #{@geometry}

  REPORT
  puts report if !@silent
end

#write ⇒ Object 



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# File 'lib/klear/file_generator.rb', line 32

def write
  Zip::ZipFile.open(@kle_path, Zip::ZipFile::CREATE) { |kle|
    @kle_file = kle
    add_pngs
    regenerate_cache
    
    # Meta
    kle.mkdir('META-INF')
    kle.file.open("META-INF/MANIFEST.MF", "w") do |os|
      os.write <<-MANIFEST
Manifest-Version: 1.0

Kle-Version: 1.0
Created-By: #{__FILE__} (#{Klear::VERSION})
Generated-At: #{Time.now}

      MANIFEST
    end
    kle.file.open("META-INF/kle.yml", "w") { |os|
      os.write({
        "geometry"    => @geometry,
        "gamma"       => @gamma,
        "fps"         => @fps
      }.to_yaml)
    }
  }
end