Module: StackFu::Rendering

Included in:
App, Commands::Command
Defined in:
lib/stackfu/helpers/rendering.rb

Constant Summary collapse

LEFT_MARGIN = 
2

Instance Method Summary collapse

Instance Method Details

#done(message, more_info = nil) ⇒ Object 



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# File 'lib/stackfu/helpers/rendering.rb', line 57

def done(message, more_info=nil)
  puts "#{"Success:".foreground(:green).bright} #{message}"
  puts "\n#{more_info}" if more_info
end

#error(message, more_info = nil) ⇒ Object 



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# File 'lib/stackfu/helpers/rendering.rb', line 62

def error(message, more_info=nil)
  puts "#{"Error:".foreground(:red).bright} #{message}"
  puts "\n#{more_info}" if more_info
end

#fill_values_from_options(stack, options) ⇒ Object 



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# File 'lib/stackfu/helpers/rendering.rb', line 10

def fill_values_from_options(stack, options)
  params = {}

  return params unless stack.controls
  
  stack.controls.each do |c|
    if (opt = options[c.name.to_sym])
      case c._type
      when "Textbox", "Password"
        params[c.name] = opt if opt

      when "Numericbox"
        begin
          params[c.name] = Float(opt)
        rescue ArgumentError
          error "Value for #{c.name} should be numeric"
        end

      end
    end
  end

  params
end

#menu_for(name, collection, convert = false) ⇒ Object 



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# File 'lib/stackfu/helpers/rendering.rb', line 67

def menu_for(name, collection, convert=false)
  choice = choose do |menu|
    menu.header = "Available #{name.pluralize}"
    menu.prompt = "\nSelect the #{name}:"
    menu.shell = true

    collection.each { |p| menu.choice(p.name) }
  end

  if convert
    collection.select { |i| i.name == choice }.first.id 
  else
    choice
  end
end

#render_target(params, target, options) ⇒ Object 



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# File 'lib/stackfu/helpers/rendering.rb', line 35

def render_target(params, target, options)
  max_length = target.controls.map { |c| c.label.size }.max

  target.controls.each do |c|
    unless params[c.name]
      case c._type
      when "Textbox"
        params[c.name] = ask("  #{c.label.rjust(max_length)}: ")

      when "Numericbox"
        params[c.name] = ask("  #{c.label.rjust(max_length)}: ", Integer)
        
      when "Password"
        params[c.name] = ask("  #{c.label.rjust(max_length)}: ") { |q| q.echo = "*" }

      end
    end
  end

  params
end

#spinner(&code) ⇒ Object 



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# File 'lib/stackfu/helpers/rendering.rb', line 193

def (&code)
  chars = %w{ | / - \\ }

  result = nil
  t = Thread.new { 
    result = code.call
  }
  while t.alive?
    print chars[0]
    STDOUT.flush

    sleep 0.1

    print "\b"
    STDOUT.flush

    chars.push chars.shift
  end

  print " \b"
  STDOUT.flush

  t.join
  result
end

#table(opts) ⇒ Object 



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# File 'lib/stackfu/helpers/rendering.rb', line 83

def table(opts)
  collection = opts[:collection]
  display = opts[:display]
  if (classes = opts[:class]).is_a?(Array)
    single = {}
    plural = {}
    opts[:class].each do |kls|
      single[kls] = kls.name.demodulize.humanize.downcase
      plural[kls] = single[kls].pluralize
    end
  else
    single = opts[:class].name.demodulize.humanize.downcase
    plural = single.pluralize
  end
  labels = opts[:labels]
  main_column = opts[:main_column]
  ascii = opts[:ansi] == false
  header = opts[:header]

  if collection.empty?
    msg = opts[:empty]
    msg ||= "No #{plural}."
    return msg
  end

  columns = display.inject([]) do |arr, item| 
    label = labels ? labels[item] : item.to_s.titleize
    arr << { :name => item.to_s, :label => label }
  end

  display.each_with_index do |column, i|
    max_value_size = collection.map do |item|
      if block_given?
        value = yield(item)[i]
      else
        if item.respond_to?(column)
          value = item.send(column)
        else
          value = ""
        end
      end
      
      value.to_s.size
    end.max
  
    size = [max_value_size, column.to_s.size].max
    columns[i][:size] = size
  end

  title = header || if classes.is_a?(Array)
    counter = Hash.new(0)
    collection.each do |item| 
      counter[item.class] += 1
    end
    
    parts = []
    collection.map(&:class).uniq.each do |k|
      v = counter[k]
      parts << "#{v} #{v > 1 ? plural[k] : single[k]}"
    end
    
    "Listing #{parts.to_phrase}:\n"
  else
    "Listing #{collection.size} #{collection.size > 1 ? plural : single}:\n"
  end

  table = []
  if ascii
    table << columns.inject("") { |str, col| str << "#{col[:label].ljust(col[:size])}  " }
    table << columns.inject("") { |str, col| str << "#{"-" * (col[:size]+1)} " }
  else
    # table << columns.inject("") { |str, col| str << "#{col[:label].titleize.ljust(col[:size]+1).underline.foreground(:yellow)} " }
    table << columns.inject("") { |str, col| str << "#{col[:label].ljust(col[:size]+1).underline.foreground(:yellow)}  " }
  end

  collection.each do |item|
    values = block_given? ? yield(item) : nil
    
    idx = 0
    table << columns.inject("") do |str, col| 
      if block_given?
        value = values[idx]
        idx += 1
      else
        if item.respond_to?(col[:name])
          value = item.send(col[:name])
        else
          value = ""
        end
      end
    
      just_method = value.is_a?(Numeric) ? :rjust : :ljust

      if ascii
        str << "#{value.to_s.send(just_method, col[:size])}  " 
      else
        if col[:name].to_sym == main_column
          str << "#{value.to_s.send(just_method, col[:size]).foreground(:blue)}   " 
        else
          str << "#{value.to_s.send(just_method, col[:size])}   " 
        end
      end
    end
  end

  table.map! { |line| "#{" " * LEFT_MARGIN}#{line}"}

  [title, table].flatten.join("\n")
end

#warning(question) ⇒ Object 



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# File 'lib/stackfu/helpers/rendering.rb', line 5

def warning(question)
  puts "== WARNING ==".foreground(:red)
  agree(question)
end