How to pass data in tree form to caller ?

I am parsing a txt file in c++ and after parsing I have data in tree form like:

Movie1
Actor
N1
N2
N3
Movie2
Actor
N1
N2

Problem is how to store and pass this data to caller ?

I don't know what's a caller. Assuming it's a function, why don't you use a vector to store them, and then pass the vector as an argument of the function?

You better don´t use the tree to store your data, better use a model/document. The tree is only used to display the data. Each movie can be represented by this structure, and since you want to handle multiple movies you need a container of movies. I always use singleton documents in my applications.

Code:

---

#include <string>
#include <vector>

struct Movie
{
  std::string Name;
  std::vector<std::string> Actors;
};

class MovieDocument
{
  std::vector<Movie> Movies_;

public:
  static MovieDocument instance()
  {
      static MovieDocument theDocument;
      return theDocument;
  }

  std::vector<Movie> movies()
  {
      return Movies_;
  }

  const std::vector<Movie> movies() const
  {
      return Movies_;
  }
     
private:
  MovieDocument()
  {
  }

  MovieDocument( const MovieDocument& doc )
  {
  }

  MovieDocument& operator=( const MovieDocument& doc )
  {
  }
};

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Read the movie data into the document and then build the tree from the document movie entries.

Code:

---

MyForm::MyForm()
{
  // traverse document movie entries and build tree
  for( std::vector<Movie>::const_iterator movie_it = MovieDocument::instance().movies.begin();
          movie_it != MovieDocument::instance().movies.end(); ++movie_it )
  {
      // Insert new tree node
      TreeNode* Node = RootNode->add( movie_it->Name );

      // insert actors
      for( std::vector<std::string>::const_iterator actor_it = movie_it->Actors.begin();
            actor_it != movie_it->Actors.end(); ++actor_it )
      {
          Node->add( *actor_it );
      }         
  }
}

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probably

Code:

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static MovieDocument& instance()

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Quote:

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Originally Posted by yzaykov

probably

Code:

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static MovieDocument& instance()

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Most probably... almost certainly ;)