Class: Lolcommits::Loltext

Inherits:
Plugin
  • Object
show all
Defined in:
lib/lolcommits/plugins/loltext.rb

Constant Summary collapse

DEFAULT_FONT_PATH = 
File.join(Configuration::LOLCOMMITS_ROOT, 'vendor', 'fonts', 'Impact.ttf')

Instance Attribute Summary

Attributes inherited from Plugin

#options, #runner

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Plugin

#configuration, #configured?, #debug, #execute_postcapture, #execute_precapture, #initialize, #log_error, #parse_user_input, #puts, #run_precapture, runner_order, #valid_configuration?

Constructor Details

This class inherits a constructor from Lolcommits::Plugin

Class Method Details

.name ⇒ Object 



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# File 'lib/lolcommits/plugins/loltext.rb', line 6

def self.name
  'loltext'
end

Instance Method Details

#annotate(image, type, string) ⇒ Object 



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# File 'lib/lolcommits/plugins/loltext.rb', line 31

def annotate(image, type, string)
  debug("annotating #{type} to image with #{string}")

  transformed_position = position_transform(config_option(type, :position))
  annotate_location = '0'
  if transformed_position == 'South'
    annotate_location = '+0+20' # Move South gravity off the edge of the image.
  end

  string.upcase! if config_option(type, :uppercase)

  image.combine_options do |c|
    c.strokewidth runner.animate? ? '1' : '2'
    c.interline_spacing(-(config_option(type, :size) / 5))
    c.stroke config_option(type, :stroke_color)
    c.fill config_option(type, :color)
    c.gravity transformed_position
    c.pointsize runner.animate? ? (config_option(type, :size) / 2) : config_option(type, :size)
    c.font config_option(type, :font)
    c.annotate annotate_location, string
  end
end

#config_defaults ⇒ Object 



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# File 'lib/lolcommits/plugins/loltext.rb', line 101

def config_defaults
  {
    :message => {
      :color    => 'white',
      :font     => DEFAULT_FONT_PATH,
      :position => 'SW',
      :size     => 48,
      :stroke_color => 'black',
      :uppercase => false
    },
    :sha => {
      :color    => 'white',
      :font     => DEFAULT_FONT_PATH,
      :position => 'NE',
      :size     => 32,
      :stroke_color => 'black',
      :uppercase => false
    },
    :overlay => {
      :enabled => false,
      :overlay_colors => [
        '#2e4970', '#674685', '#ca242f', '#1e7882', '#2884ae', '#4ba000',
        '#187296', '#7e231f', '#017d9f', '#e52d7b', '#0f5eaa', '#e40087',
        '#5566ac', '#ed8833', '#f8991c', '#408c93', '#ba9109'
      ],
      :overlay_percent => 50
    }
  }
end

#config_option(type, option) ⇒ Object 



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# File 'lib/lolcommits/plugins/loltext.rb', line 131

def config_option(type, option)
  default_option = config_defaults[type][option]
  if configuration[type]
    configuration[type][option] || default_option
  else
    default_option
  end
end

#configure_options! ⇒ Object 



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# File 'lib/lolcommits/plugins/loltext.rb', line 54

def configure_options!
  options = super
  # ask user to configure text options when enabling
  if options['enabled']
    puts '---------------------------------------------------------------'
    puts '  LolText options '
    puts ''
    puts '  * any blank options will use the (default)'
    puts '  * always use the full absolute path to fonts'
    puts '  * valid text positions are NE, NW, SE, SW, S, C (centered)'
    puts '  * colors can be hex #FC0 value or a string \'white\''
    puts '      - use `none` for no stroke color'
    puts '  * overlay fills your image with a random color'
    puts '      - set one or more overlay_colors with a comma seperator'
    puts '      - overlay_percent (0-100) sets the fill colorize strength'
    puts '---------------------------------------------------------------'

    options[:message] = configure_sub_options(:message)
    options[:sha]     = configure_sub_options(:sha)
    options[:overlay] = configure_sub_options(:overlay)
  end
  options
end

#configure_sub_options(type) ⇒ Object

TODO: consider this type of configuration prompting in the base Plugin class, working with hash of defaults



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# File 'lib/lolcommits/plugins/loltext.rb', line 80

def configure_sub_options(type)
  print "#{type}:\n"
  defaults = config_defaults[type]

  # sort option keys since different `Hash#keys` varys across Ruby versions
  defaults.keys.sort_by(&:to_s).reduce({}) do |acc, opt|
    # if we have an enabled key set to false, abort asking for any more options
    if acc.key?(:enabled) && acc[:enabled] != true
      acc
    else
      print "  #{opt.to_s.tr('_', ' ')} (#{defaults[opt]}): "
      val = parse_user_input(STDIN.gets.chomp.strip)
      # handle array options (comma seperated string)
      if defaults[opt].is_a?(Array) && !val.nil?
        val = val.split(',').map(&:strip).delete_if(&:empty?)
      end
      acc.merge(opt => val)
    end
  end
end

#enabled? ⇒ Boolean

enabled by default (if no configuration exists)

Returns:

  • (Boolean) 


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# File 'lib/lolcommits/plugins/loltext.rb', line 11

def enabled?
  !configured? || super
end

#run_postcapture ⇒ Object 



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# File 'lib/lolcommits/plugins/loltext.rb', line 15

def run_postcapture
  debug 'Annotating image via MiniMagick'
  image = MiniMagick::Image.open(runner.main_image)
  if config_option(:overlay, :enabled)
    image.combine_options do |c|
      c.fill config_option(:overlay, :overlay_colors).sample
      c.colorize config_option(:overlay, :overlay_percent)
    end
  end

  annotate(image, :message, clean_msg(runner.message))
  annotate(image, :sha, runner.sha)
  debug "Writing changed file to #{runner.main_image}"
  image.write runner.main_image
end