Re: Newbie question - is where Obj-C analog for a C++ static data
Re: Newbie question - is where Obj-C analog for a C++ static data
- Subject: Re: Newbie question - is where Obj-C analog for a C++ static data
- From: matt neuburg <email@hidden>
- Date: Thu, 11 Sep 2003 08:59:17 -0700
On Wed, 10 Sep 2003 11:23:17 +0400, Rustam Muginov <email@hidden> said:
>
Hello all.
>
I have a document-based applications, with several windows where different
>
objects are drawn.
>
I need to draw them with the different colors, depending on the object
>
"type" or "kind".
>
So I created the NSDictionary, with the colors as objects and object types
>
as the keys.
>
>
The questions is - how could I optimize my code and not the build such
>
colors dictionary for every WindowController (or for every document)?
>
In C++, I could declare the static data member for the class, init it with
>
NULL value, and then check it from the instance method, building the color
>
list if its not already build.
>
In Cocoa, I could probably define the "standalone" global variable and use
>
it for the same purposes, but I feel this is not very "cocoa-ish"
>
>
How should I implement "shared" object, which will be inited once and then
>
used by many instances?
In exactly the same way as in C++ - use a class static. See the ClassClusters.html document on your hard drive for an example. m.
--------
matt neuburg, phd = email@hidden,
http://www.tidbits.com/matt/
pantes anthropoi tou eidenai oregontai phusei
Subscribe to TidBITS! It's free and smart.
http://www.tidbits.com/
_______________________________________________
cocoa-dev mailing list | email@hidden
Help/Unsubscribe/Archives:
http://www.lists.apple.com/mailman/listinfo/cocoa-dev
Do not post admin requests to the list. They will be ignored.