Class: Klear::FileGenerator

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

Constant Summary collapse

Defaults = 
{
  overwrite: false, 
  fps: 25,
  gamma: 1.0,
  pixel_scale: [10, 10],
}

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 10

def initialize options = {}
  @options = Defaults.merge(options)
  @fps = @options[:fps]
  @gamma = @options[:gamma]

  @raw_frame_values = []
  @png_path = nil
  @kle_path = nil
  @geometry = nil
  @kle_file = nil
end

Instance Method Details

#generate(thePngPath, theKleFile) ⇒ Object 



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# File 'lib/klear/file_generator.rb', line 65

def generate thePngPath, theKleFile
  @png_path = thePngPath
  @kle_path = theKleFile
  if (File.exists? @kle_path) 
    if overwrite?
      FileUtils.rm(@kle_path, force: true)
    else
      raise "'#{@kle_path}' :: already exists! (use --overwrite to force it)"
    end
  end
  write(@kle_path)
  report
end

#load ⇒ Object 



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# File 'lib/klear/file_generator.rb', line 30

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

#overwrite? ⇒ Boolean

Returns:

  • (Boolean) 


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

def overwrite?
  @options[:overwrite]
end

#pixel_scale ⇒ Object 



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# File 'lib/klear/file_generator.rb', line 22

def pixel_scale
  @options[:pixel_scale]
end

#regenerate(theKleFile) ⇒ Object 



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# File 'lib/klear/file_generator.rb', line 95

def regenerate theKleFile
  @kle_path = theKleFile
  load
  recache
end

#report ⇒ Object 



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# File 'lib/klear/file_generator.rb', line 79

def report
  report = "\nInput  Directory : '\#{@png_path}'\nOutput KleFile : '\#{@kle_path}'\n\nDetails:\n  * number of [png files|frames]: \#{@kle_file.dir.entries(\"/frames\").size}\n  * fps: \#{@fps}\n  * gamma : \#{@gamma}\n  * geometry : \#{@geometry}\n\n  REPORT\n  puts report if !$silent\nend\n"

#write(path) ⇒ Object 



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# File 'lib/klear/file_generator.rb', line 34

def write(path)
  # TODO:  maybe use Zip::ZipOutputStream to generate zip file in-memory?
  Zip::ZipFile.open(path, Zip::ZipFile::CREATE) do |klear|
    @kle_file = klear
    add_pngs(@kle_file)
    recache
    
    # Meta
    klear.mkdir('META-INF')
    klear.file.open("META-INF/MANIFEST.MF", "w") do |fd|
      fd.write "Manifest-Version: 1.0\n\nKle-Version: 1.1\nCreated-By: \#{__FILE__} (\#{Klear::VERSION})\nGenerated-At: \#{Time.now}\n\n      MANIFEST\n    end\n\n    klear.file.open(\"META-INF/kle.yml\", \"w\") do |fd|\n      fd.write({\n        \"geometry\"    => @geometry,\n        \"pixel_scale\" => pixel_scale,\n        \"gamma\"       => @gamma,\n        \"fps\"         => @fps\n      }.to_yaml)\n    end\n  end\nend\n"