class Pettanr.Picture extends Peta.Content
  
  @singular: () ->
    'Picture'
  
  @plural: () ->
    'Pictures'
  
  defaults: {
    id: null
  } 
  
  @trace_routes: () ->
    {
      resource_picture: ['resource_picture_picture', 'resource_picture']
    }
  
  is_visible: (operators = Pettanr.cache.operators) ->
    return true
  
  filename: () ->
    @get('id') + '.' + @get('ext')
  
  gifname: () ->
    @get('id') + '.gif'
  
  mime_type: () ->
    'image/' + @get('ext')
  
  r_url: () ->
    '/pictures/' + @filename()
  
  img_option: () ->
    title = if @['get']  # is instance?
      @model_name() + ' ID:' + Pettanr.to_s(@get('id'))
    else
      @model_name()
    {
      title: title
      alt: @model_name()
    }
  
  opt_img_tag: () ->
    @picture_file()
  
  tmb_opt_img_tag: () ->
    @symbol_file()
  
  tail_opt_img_tag: (img) ->
    {src: img, width: @get('width'), height: @get('height')}
  
  tail_tmb_opt_img_tag: (img) ->
    wh = Pettanr.Imager.thumbnail_size(@get('width'), @get('height'))
    {src: img, width: wh[0], height: wh[1]}
  
  alt_name: () ->
    lgn = Pettanr.to_s(@license().license_group().get('caption'))
    ln = Pettanr.to_s(@license().get('caption'))
    lgn + '[' + ln + ']'
  
  symbol_option: (context, options) ->
    @retrieve(this, {
      success: (symbol_item) => 
        options.success.call(context, symbol_item.to_symbol())
    })
  
  is_enable: () ->
    if @head().resource_picture()
      true
    else
      false
  
  @head: (opid) ->
    #Picture.find( conditions => ['original_picture_id = ?', opid], :order => 'pictures.revision desc')
  
  head: () ->
    Picture.head(@get('original_picture_id'))
  
  is_head: () ->
    #this == @head()
  
  subdirs: () ->
    if @license_extend().reverse < 0
      ['']
    else
      ['', 'v', 'h', 'vh']
  
  is_showable: (operators = Pettanr.cache.operators) ->
    return false if not @original_picture()
    return true if @is_own(operators)
    #@is_enable() and @is_head()
  
  history_view: () ->
    new Pettanr.Views.Picture.History({item: this})
  
  initialize: (attr = {}, options = {}) ->
    super(attr, options)