Comments for Philomathy http://www.reitshamer.com Adventures in indie software development Wed, 09 Mar 2011 01:04:00 +0000 hourly 1 http://wordpress.org/?v=3.3.1 Comment on NSBrowser with checkboxes by stefan http://www.reitshamer.com/2011/03/nsbrowser-with-checkboxes/comment-page-1/#comment-347 stefan Wed, 09 Mar 2011 01:04:00 +0000 http://www.reitshamer.com/?p=80#comment-347 Thanks Chris. I learned during the process that NSCell was using NSCopyObject, so I did handle my ivars appropriately in copyWithZone:, but couldn't get it to work. If your code works, then apparently I was doing something wrong. I don't have the code anymore to check. Thanks Chris. I learned during the process that NSCell was using NSCopyObject, so I did handle my ivars appropriately in copyWithZone:, but couldn’t get it to work. If your code works, then apparently I was doing something wrong. I don’t have the code anymore to check.

]]> Comment on NSBrowser with checkboxes by Chris http://www.reitshamer.com/2011/03/nsbrowser-with-checkboxes/comment-page-1/#comment-346 Chris Wed, 09 Mar 2011 00:44:31 +0000 http://www.reitshamer.com/?p=80#comment-346 The secret is to override copyWithZone:, but you have to do it like this: <code>@interface CBrowserCell : NSBrowserCell { id anIVar; } - (id) copyWithZone: (NSZone*) zone { CBrowserCell* obj = [super copyWithZone: zone]; obj->anIVar = [anIVar retain]; // MUST zero or copy/retain all added i-vars return obj; } @end</code> Without this you WILL get 'random' crashes, notably when Cocoa tries to display expansion tool-tips. (Displaying one of these tool-tips deallocates a copy of the target cell.) Typically this does not appear to be documented anywhere, but It does work 100%. If you don’t add i-vars you don’t need to override copyWithZone:. The secret is to override copyWithZone:, but you have to do it like this:

@interface CBrowserCell : NSBrowserCell { id anIVar; }

- (id) copyWithZone: (NSZone*) zone {
CBrowserCell* obj = [super copyWithZone: zone];
obj->anIVar = [anIVar retain]; // MUST zero or copy/retain all added i-vars
return obj;
}
@end

Without this you WILL get ‘random’ crashes, notably when Cocoa tries to display expansion tool-tips. (Displaying one of these tool-tips deallocates a copy of the target cell.)
Typically this does not appear to be documented anywhere, but It does work 100%.
If you don’t add i-vars you don’t need to override copyWithZone:.

]]> Comment on NSBrowser with checkboxes by stefan http://www.reitshamer.com/2011/03/nsbrowser-with-checkboxes/comment-page-1/#comment-345 stefan Tue, 08 Mar 2011 20:55:46 +0000 http://www.reitshamer.com/?p=80#comment-345 I subclassed it and got random intermittent crashes. I tried everything I could think of to debug it, including overriding retain/release/copyWithZone/etc. I switched to subclassing NSTextFieldCell like Apple's sample code, and it worked great. Do you have code you can share that subclasses NSBrowserCell successfully? I subclassed it and got random intermittent crashes. I tried everything I could think of to debug it, including overriding retain/release/copyWithZone/etc. I switched to subclassing NSTextFieldCell like Apple’s sample code, and it worked great.

Do you have code you can share that subclasses NSBrowserCell successfully?

]]> Comment on NSBrowser with checkboxes by Chris http://www.reitshamer.com/2011/03/nsbrowser-with-checkboxes/comment-page-1/#comment-344 Chris Tue, 08 Mar 2011 19:59:08 +0000 http://www.reitshamer.com/?p=80#comment-344 "Contrary to what you may have read, don’t subclass NSBrowserCell — it’s unsubclassable." What do you base this on? I don't believe it to be true. “Contrary to what you may have read, don’t subclass NSBrowserCell — it’s unsubclassable.”

What do you base this on?
I don’t believe it to be true.

]]> Comment on Using Breakpad on Mac OS X 10.6 by Ted Mielczarek http://www.reitshamer.com/2009/09/using-breakpad-on-mac-os-x-10-6/comment-page-1/#comment-173 Ted Mielczarek Fri, 05 Feb 2010 13:39:40 +0000 http://www.reitshamer.com/?p=18#comment-173 Glad to hear you were able to use Breakpad! I think we'll be getting 64-bit OS X support soon, since we'll want to ship a 64-bit Firefox in the near future. It's probably very close to working and just needs a bit of cleanup. I'd be interested to see what your server solution looks like. We're using Socorro, but that's probably a bit heavyweight for smaller software projects that aren't getting millions of crash reports. It would probably be nice to have a smaller solution that we could recommend to other projects. Glad to hear you were able to use Breakpad! I think we’ll be getting 64-bit OS X support soon, since we’ll want to ship a 64-bit Firefox in the near future. It’s probably very close to working and just needs a bit of cleanup.

I’d be interested to see what your server solution looks like. We’re using Socorro, but that’s probably a bit heavyweight for smaller software projects that aren’t getting millions of crash reports. It would probably be nice to have a smaller solution that we could recommend to other projects.

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