Making a list of folders in a directory with wxWidgets

Question

I\'m making an application with wxWidgets that has a listbox in it. I want to get the current working directory of the application, and in that listbox, list all the folders

Answer 1

For getting only the subdirectories without recursion the answer is right in the documentation of the wxDir class: http://docs.wxwidgets.org/trunk/classwx_dir.html

wxDir dir("C:/myDir");
if(!dir.IsOpened())
{
  // deal with the error here, wxDir would already 
  // log an error message explaining the exact reason of the failure.
  return;
}
wxString filename;
bool cont = dir.GetFirst(&filename, wxEmptyString, wxDIR_DIRS);
while(cont)
{
  printf("%s\n", filename.c_str());
  cont = dir.GetNext(&filename);
}

For recursion i use a Traverse sub-class: http://docs.wxwidgets.org/trunk/classwx_dir_traverser.html

The trick is only add to the list what you need, this is a case for directories only:

class wxDirTraverserSimple : public wxDirTraverser
{
  public:
    wxDirTraverserSimple(wxArrayString& files) : m_files(files){}
    virtual wxDirTraverseResult OnFile(const wxString& filename)
    {
      return wxDIR_CONTINUE;
    }
    virtual wxDirTraverseResult OnDir(const wxString& dirname)
    {
      m_files.Add(dirname);
      return wxDIR_CONTINUE;
    }
  private:
    wxArrayString& m_files;
};