[Geobunny]

Hi guys + gals, hope you can help with this cos it's driving me mad!

I've got a "Document based application" which I'm using java to develop. The project is called Battler.

I used InterfaceBuilder to lay out the main document window (MyDocument.nib) with various buttons linked to a class called "battleGrid" which I then instantiated. In my project I now have three source code files:
MyDocument.java
battleGrid.java
main.m

When my program starts up, the window (from MyDocument.nib) is displayed and somewhere an instance of battleGrid is created. A new window is displayed and a new instance of battleGrid created every time I select "New" from the File menu.

At certain points in the game I want the window corresponding to a particular instance of battleGrid to display a sheet. However, I don't know how to tell that instance what window to display the sheet on (it has to be the one associated with that instance of battleGrid).

Can anyone help please?

I know a nasty hack I can use to get round it, but it's not very pretty. It involves using a global variable....Sooooo, onto question 2!

How can I create a global variable?

Thanks for all your help.

[asmodeus]

Create an NSWindow outlet in battleGrid (there's an instance of it in MyDocument.nib right?) and connect it to the window you want a reference to. You can then use this reference within the class to refer to the window you want the sheet to attach to (I'm pretty sure this is correct, but it may not be. It may also be bad design, I'm only just learning Cocoa, and haven't done much with document based stuff).

[Geobunny]

Thanks, I was playing around with InterfaceBuilder last night and spotted this one - felt really stupid for not noticing it earlier actually!

I'm not even convinced that a document based app was the right way to go, but I'd started the project before I even knew what I was developing!! Any help on the global variable?

Thanks

[Chuckit]

Originally posted by Geobunny:
Any help on the global variable?

Just make it a class variable. Those are globally accessable.