[R-SIG-Mac] (no subject)

Simon Urbanek simon.urbanek at r-project.org
Fri Mar 23 14:47:37 CET 2007


thanks for the suggestion. Unfortunately it doesn't solve the  
problem. There are two reasons:

1) the myWinCtrl is not a local variable, it is an instance variable  
and as such RDocument manages its lifetime and therefore it is  
properly released in -(void)close. (note
		[self removeWindowController:myWinCtrl];
		[myWinCtrl close];
just before the hack and
		[myWinCtrl release];
just after the hack.

2) even if we release myWinCtrl right away (albeit incorrectly so)  
the problem persists

I agree that there is something wrong, I just don't know what - the  
symptom is that the corresponding entry in the "Window" menu stays  
there and you can click on it and open the document again. So the  
hack fixes the symptom, but likely not the cause. If you have an idea  
what could cause the entry to stay in the list even though the window  
is closed, please let me know.


On Mar 16, 2007, at 10:11 AM, Gorazd Krosl wrote:

> I downloaded the R for mac sources and was browsing through the code
> of RDocument. In - (void)close method I noticed comment:
> 		// --- something is broken - winctrl close doesn't work - I have no
> idea why - this is a horrible hack to cover up
> I think I found why, in the method - (void) makeWindowControllers the
> window controller for document is allocated and added to the document
> but <<never>> released. The document <<retains>> window controller so
> the code should read something like that:
> myWinCtrl = [[RDocumentWinCtrl alloc]
> initWithWindowNibName:@"RDocument"];
> [self addWindowController:myWinCtrl];
> [myWinCtrl release];
> Now window controller will be correctly released on document close
> and will also correctly release the nib's top level objects.
> Hope this will help,
> Gorazd
> 	[[alternative HTML version deleted]]
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