QDir as class field

DungeonLords

I want to use dir

QDir dir("1.txt");

in different methods of my object.

Is it good way to make *QDir dir; field in class like:

class MainWindow : public QMainWindow
{
Q_OBJECT
private:
QDir *dir;
}

?

And does I need to use

dir = new QDir("1.txt");

in conscructor?
and

delete dir;

in destructor?

There are a lot of examples where QDir dir("1.txt"); use in one method only.

JonB

@DungeonLords
There is no point newing and deleteing a QDir *dir; class member. Just use QDir dir; for it.

You can set the path in the declaration, or use void QDir::setPath(const QString &path) when you want to do so.

Note that using QDir anywhere with a relative path as you do ("1.txt") is "likely to be wrong". That would look for it relative to the application's current working directory, and I doubt you know or intend that. Use absolute paths to find files. Use QStandardPaths Class for certain common directory paths. Not to mention: do you really have a directory named 1.txt??

There are a lot of examples where QDir dir("1.txt"); use in one method only.

Depends whether you want to use the same QDir instance in multiple places in the class, and care that it should not be reconstrcuted.