static const QFont using QFontDatabase?

Pippin

@SeeLook I'm sorry what? I'm not sure I understood what you were trying to say. Keep in mind that I'd like the static member to be const.

SGaist

Hi,

Why do you need a static QFont ?

Pippin

Hi @SGaist,

Basically I need a global variable, and I don't intend to change it once I declared it.

SGaist

That's what I thought but what would be the use of that global QFont ?

Pippin

@SGaist It would be used whenever a few functions are run. I'm just trying to load it once and for all, rather than load it every time these functions are called. The use is drawing texts on a QImage.

SGaist

Are these functions in separated classes ?

Pippin

No they are all in that same class.

SGaist

Then why not just make it a member and load it at construction time ?

Pippin

@SGaist I could do that, but it's the same font for all instances. So it would be kind of a waste of space.

SeeLook

Simply add static init() method to the class where private static QFont is done and give access to it through const method

QFont myFont () const { return m_font;  }

kshegunov

@Pippin

So it would be kind of a waste of space.

Hello,
I suggest answering these two questions for your own peace of mind:

How much space would you expect to save if you put it in a static variable?
What do you gain or lose by making it a static and is it worth the effort (in work time/planning time)?

Kind regards.