Re: HIThemeGetTextDimensions problems

[Graham Cox]

> On 23 Apr 2016, at 6:04 AM, Tom Doan  wrote:
> 
> Is there a more modern and well-behaved alternative to this?


-[NSString sizeWithAttributes:…];


—Graham



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HIThemeGetTextDimensions problems

[Tom Doan]

While doing some cleanup of memory problems on our software, I 
discovered that HIThemeGetTextDimensions seemed to be leaking memory. 
(At minimum, it seemed to be allocating a CFString and a CFDictionary and 
never fully releasing them). This seems to be an old Carbon-era function 
which is poorly documented and has been a probably even before I found 
that it was leaking. (We have a multi-threaded application and it seems it 
doesn't work properly unless run on the main thread, which never made any 
real sense). Is there a more modern and well-behaved alternative to this? I 
can't seem to find one.


(Code in which it's used)

-(IBAction) textsize:(id) view
{
CGFloat cgwidth;
HIThemeTextInfo textinfo;
textinfo.version = 1;
textinfo.state   = kThemeStateActive;
textinfo.fontID  = kThemeSystemFont;
textinfo.horizontalFlushness = kHIThemeTextHorizontalFlushLeft;
textinfo.verticalFlushness   = kHIThemeTextVerticalFlushCenter;
textinfo.options = 0;
textinfo.truncationPosition  = kHIThemeTextTruncationNone;
textinfo.truncationMaxLines  = 1;
HIThemeGetTextDimensions(itsString,0,,,NULL,NULL);
itsWidth = cgwidth;
}

Best regards,

Tom Doan
Estima
---
1560 Sherman Ave #1029
Evanston, IL 60201
USA

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