Class: SlideShowGenerator

Inherits:
Object
  • Object
show all
Extended by:
Logging
Includes:
Singleton
Defined in:
lib/html2slideshow.rb

Overview

The SlideShowGenerator class provides the main routine to start 

the slideshow-generation.
Alternatively a commandline parameter -g or --generic can be
used to write a generic configuration file, which can be used
to alter the program output in later runs of the generator.
See Argparser for details on commandline parameters.

Constant Summary collapse

@@log = 
self::init_logger()

Instance Method Summary collapse

Methods included from Logging

init_logger, log_level=, log_target=

Methods included from File_Checking

file_check, #file_check, last_mime_type, magic_check, mime_check

Constructor Details

#initialize ⇒ SlideShowGenerator

Returns a new instance of SlideShowGenerator.



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# File 'lib/html2slideshow.rb', line 48

def initialize
  @log = @@log
end

Instance Method Details

#generate(args) ⇒ Object

The original console-version works with this method



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# File 'lib/html2slideshow.rb', line 53

def generate(args)
  message = nil
  options = ArgParser.parse(args)
  @log.level = Logger::INFO  if !options.debug
  @log.debug('Log-level is ' << @log.level.to_s)
  
  @log.debug("options are " + options.to_s) 
  unless options.generic
    pwd = Dir.pwd()
    if(options.source && !options.source.empty?)
      message = File_Checking.file_check(options.source, [:exist?, :readable?, :writable?, :directory?])
      if(message)
        message = sprintf( trl("Source-directory") << ": %s" , message)
      else
        Dir.chdir(options.source)

        if('files' == options.source_type)      
          read_dir(options)
        else
          read_html(options)
        end
        Dir.chdir(pwd)
      end
    else
      message = trl('No source-directory given!')
    end
  else
    message = Configurator.write_configuration(options.generic)
  end
  message if message
end

#read_dir(options) ⇒ Object

read from DIR



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# File 'lib/html2slideshow.rb', line 86

def read_dir(options) 
  @log.debug('reading files from souce-directory') 
  if(!options.formats || options.formats.empty?)
    options.formats = %w[jpg JPG jpeg JPEG webp]
    @log.debug("no image types chosen, looking for JPEGs and WebP") 
  end
  @log.debug('working on directory ' + Dir.pwd) 
  source = SourceFile.new(Dir.pwd, options)
  HtmlBuilder.new(source, options)
end

#read_html(options) ⇒ Object

read from html



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# File 'lib/html2slideshow.rb', line 98

def read_html(options) 
  @log.debug('reading references from html') 
  htmlfiles = Dir.glob("{*.htm,*.html}") 
  if(htmlfiles && !htmlfiles.empty?)
    htmlfiles.each do |sf|
      @log.debug('working on file ' + sf) 
      source = SourceFile.new(sf, options)
      HtmlBuilder.new(source, options)
    end
  else 
    @log.error("NO source-files in %s! Check source-directory!" %options.source)
  end
end

#run ⇒ Object

main routine.



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# File 'lib/html2slideshow.rb', line 113

def run()

  message = generate(ARGV)
  if message
    @log.error message
    @log.debug('returning nil') 
    nil
  else 
    msg = trl('DONE')
    puts "-" * msg.length << "\n" << msg
    @log.debug('returning true') 
    true
  end
end