'method' is partial: introduced in macOS 10.8

[Rick Mann]

I'm trying to build some I wrote last year (actually this is code in a library 
I used last year), and under Xcode 8 I'm getting warnings like these:

'objectForKeyedSubscript:' is partial: introduced in macOS 10.8
'objectForKeyedSubscript:' has been explicitly marked partial here
Explicitly redeclare 'objectForKeyedSubscript:' to silence this warning

The error occurs with the subscript on names[] below:

   NSMutableDictionary *names = self.categoryNames;
   NSMutableOrderedSet *categories = names[cacheKey];

I'm building on 10.12 and targeting 10.11. I don't see how to explicitly 
redeclare it, since it's on NSMutableDictionary. Do I have to do so in an 
extension? I don't understand. Why is this even a warning?



-- 
Rick Mann
rm...@latencyzero.com



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Re: Prioritizing drawing of the important stuff

[Jonathan Taylor]

Hi everyone,

Thankyou all for your replies. Plenty of food for thought there - much 
appreciated. Looks like timers and flow control is the way forward then, if I 
want to tackle this. I just thought I'd see if there was anything built in to 
the standard UI frameworks that might be able to help, but it seems not.

To answer one of Quincey's comments:

>> The low priority thing only really runs  when *nothing* else at all is 
>> happening.
> 
> This shouldn’t be happening, on most Macs. An average desktop Mac has at 
> least 2 CPU cores (4 logical CPUs), which should allow at least 2 
> compute-bound tasks to proceed simultaneously...

The reason for this is that the coalescing, post-when-idle NSNotifications I 
was talking about were being posted to the main queue. Hence all the main queue 
time was being taken up in ultra-smooth drawing of sliders etc, since that of 
course also happens on the main queue (UI drawing...). I agree that it looks as 
if I should bite the bullet and run all this stuff multithreaded. The thing is, 
a lot of it doesn't fundamentally ~need~ to run multithreaded - one thread 
should be enough to get drawing responsiveness that I'm pretty happy with, if I 
could just find a way to control what priorities the different aspects are 
being treated with. Sounds like timers, flow control and/or multiple 
threads/queues is the way to go if I want to solve this properly.

Cheers
Jonny.
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Re: How to get an undeprecated FSRef

[Gerriet M. Denkmann]

> On 1 Nov 2016, at 15:25, Ken Thomases  wrote:
> 
> On Nov 1, 2016, at 3:20 AM, Gerriet M. Denkmann  wrote:
>> 
>> What I really want to do: Create custom icons for folders programmatically.
> 
> Use -[NSWorkspace setIcon:forFile:options:].
> 
> Regards,
> Ken

This is hugely better than my old code. 

Thanks a lot for this suggestion!

Kind regards,

Gerriet.



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Re: How to get an undeprecated FSRef

[dangerwillrobinsondanger]

All together, looks like NSWorkspace should enable doing this as long as you 
don't hit some permissions restrictions on some folders. 
Less code no doubt too. 
Cool. 
> On 1 Nov 2016, at 17:25, Ken Thomases  wrote:
> 
>> On Nov 1, 2016, at 3:20 AM, Gerriet M. Denkmann  wrote:
>> 
>> What I really want to do: Create custom icons for folders programmatically.
> 
> Use -[NSWorkspace setIcon:forFile:options:].
> 
> Regards,
> Ken
> 

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Re: How to get an undeprecated FSRef

[Ken Thomases]

On Nov 1, 2016, at 3:20 AM, Gerriet M. Denkmann  wrote:
> 
> What I really want to do: Create custom icons for folders programmatically.

Use -[NSWorkspace setIcon:forFile:options:].

Regards,
Ken

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Re: How to get an undeprecated FSRef

[Tamas Nagy]

Hi there,

> 
> What I really want to do: Create custom icons for folders programmatically.
> 


you can use NSWorkspace for that. Check out: 
https://developer.apple.com/reference/appkit/nsworkspace/1529882-seticon?language=objc



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Re: How to get an undeprecated FSRef

[Gerriet M. Denkmann]

> On 1 Nov 2016, at 14:44, Ken Thomases  wrote:
> 
> On Nov 1, 2016, at 2:08 AM, Gerriet M. Denkmann  wrote:
>> 
>> I am using ReadIconFromFSRef (not deprecated), which needs an FSRef.
>> 
>> How to convert a path into an FSRef without deprecation warnings in macOS 12 
>> ?
> 
> I doubt you'll find anything.  You should switch to using NSImage and 
> -initWithContentsOfURL: (or -initWithContentsOfFile:).
> 
> Regards,
> Ken

What I really want to do: Create custom icons for folders programmatically.

I have some old code (still working, but very much deprecated) like:

IconFamilyHandle hIconFamily;
ReadIconFromFSRef( _of_icns_file,  ); // this is the only 
non-deprecated function

ResFileRefNum file = FSOpenResFile( _of_new_Icon, fsRdWrPerm );
AddResource( (Handle)hIconFamily, kIconFamilyType, kCustomIconResource, name);
CloseResFile( file );

+ some FSGetCatalogInfo, FSSetCatalogInfo.

finally:  
FNNotify( , kFNDirectoryModifiedMessage, kNilOptions );

and I would like to convert this code into some non-deprecated form.


Kind regards,

Gerriet.


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Re: How to get an undeprecated FSRef

[dangerwillrobinsondanger]

NSWorkspace has iconForFile:
NSURL has getResourceValue:forKey:error:

Do those not accomplish what you need to do instead?

Sent from my iPhone

> On 1 Nov 2016, at 16:08, Gerriet M. Denkmann  wrote:
> 
> I am using ReadIconFromFSRef (not deprecated), which needs an FSRef.
> 
> How to convert a path into an FSRef without deprecation warnings in macOS 12 ?
> 
> Gerriet.
> 
> 
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Re: How to get an undeprecated FSRef

[Ken Thomases]

On Nov 1, 2016, at 2:08 AM, Gerriet M. Denkmann  wrote:
> 
> I am using ReadIconFromFSRef (not deprecated), which needs an FSRef.
> 
> How to convert a path into an FSRef without deprecation warnings in macOS 12 ?

I doubt you'll find anything.  You should switch to using NSImage and 
-initWithContentsOfURL: (or -initWithContentsOfFile:).

Regards,
Ken


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How to get an undeprecated FSRef

[Gerriet M. Denkmann]

I am using ReadIconFromFSRef (not deprecated), which needs an FSRef.

How to convert a path into an FSRef without deprecation warnings in macOS 12 ?

Gerriet.


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