Class: GenerateAlbumTreeNodeVisitor

Inherits:
CallbackTreeNodeVisitor2
  • Object
show all
Defined in:
lib/ralbum/album_tree/generate_album_tree_node_visitor.rb

Instance Method Summary collapse

Constructor Details

#initialize(album_dirname, catalog, image_strategies) ⇒ GenerateAlbumTreeNodeVisitor

Returns a new instance of GenerateAlbumTreeNodeVisitor.



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# File 'lib/ralbum/album_tree/generate_album_tree_node_visitor.rb', line 13

def initialize( album_dirname, catalog, image_strategies )
  super()
  @album_dirname = album_dirname
  @catalog = catalog
  @image_strategies = image_strategies

  # TODO: eliminare le seguenti chiamate, trovare il visitor giusto da cui ereditare
  on_enter_tree_node do |photo_tree_node, parentAlbumNode|
    _on_enter_tree_node photo_tree_node, parentAlbumNode
  end

  on_visit_leaf_node do |photo_item, parent_album_node|
    _on_visit_leaf_node photo_item, parent_album_node
  end
end

Instance Method Details

#_on_enter_tree_node(photo_tree_node, parent_album_node) ⇒ Object 



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# File 'lib/ralbum/album_tree/generate_album_tree_node_visitor.rb', line 36

def _on_enter_tree_node(photo_tree_node, parent_album_node)
  album_key   = @catalog.album_key( photo_tree_node.path )
  album_title = photo_tree_node.name    # instead of photo_tree_node["title"]
  album_desc  = photo_tree_node["shortdesc"]
  albumNode   = Album.new( parent_album_node, album_key, album_title, album_desc )
end

#_on_visit_leaf_node(photo_item, parent_album_node) ⇒ Object 



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# File 'lib/ralbum/album_tree/generate_album_tree_node_visitor.rb', line 43

def _on_visit_leaf_node(photo_item, parent_album_node)
  photo_key   = @catalog.key( photo_item.photo_file.md5 )
  photo_title = photo_item.title
  photo_desc  = photo_item.description
  image_pool   = ImagePool.new( parent_album_node, photo_item.photo_file.md5, photo_key, photo_title, photo_desc )
  msg = ""

  @image_strategies.each_pair {|name,image_strategy|
    image_basename = @catalog.photo_file( photo_item )

    inpath = photo_item.photo_file.path

    outdir = File.join( @album_dirname, "images_" + image_strategy.name )
    outpath = File.join( outdir, image_basename )
    msg += "#{name} "
    if File.exist?(outpath) and File.mtime(inpath) < File.mtime(outpath)
      msg += "(s) "
    else
      Dir.mkdir( outdir ) unless File.exist?( outdir )
      msg += image_strategy.build( inpath, outpath )
    end

    src_url  = File.join(image_pool.relroot_with_prefix, "images_" + image_strategy.name, image_basename)
    image = ImageFile.new( image_pool, outpath, src_url, image_basename + ".html" )

    image_pool.image( name, image )
  }
  ralbum_verbose( 2, sprintf("%40s: %s \n", photo_item.basename, msg ) )
end

#run(photo_tree) ⇒ Object 



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# File 'lib/ralbum/album_tree/generate_album_tree_node_visitor.rb', line 29

def run( photo_tree )
  ralbum_verbose( 1, "generate albumtree" )
  ralbum_verbose( 1, "create images" )
  photo_tree.accept( self )
  root
end