Method: Tk::BLT::Treeview::Node#initialize

Defined in:
lib/tkextlib/blt/treeview.rb

#initialize(tree, pos, parent, keys) ⇒ Node

Returns a new instance of Node.



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# File 'lib/tkextlib/blt/treeview.rb', line 1116

def initialize(tree, pos, parent, keys)
  @parent = @tree = tree
  @tpath = @parent.path

  if (id = keys['node'])
    # if tk_call(@tpath, 'get', id).empty?
    #   fail RuntimeError, "not exist the node '#{id}'"
    # end
    @path = @id = id
    tk_call(@tpath, 'move', @id, pos, tagid(parent)) if parent
    configure(keys) if keys && ! keys.empty?
  else
    name = nil
    TreeNode_ID.mutex.synchronize{
      name = TreeNode_ID.join(TkCore::INTERP._ip_id_).freeze
      TreeNode_ID[1].succ!
    }

    at = keys.delete['at']

    if parent
      if parent.kind_of?(Tk::BLT::Treeview::Node) ||
          parent.kind_of?(Tk::BLT::Treeview::Tag)
        path = [get_full(parent.id)[0], name]
        at = nil # ignore 'at' option
      else
        path = [parent.to_s, name]
      end
    else
      path = name
    end

    if at
      @id = tk_call(@tpath, 'insert', '-at', tagid(at), pos, path, keys)
    else
      @id = tk_call(@tpath, 'insert', pos, path, keys)
    end
    @path = @id
  end
end