Did you try the
CGContextRef ctx=(CGContextRef)[[NSGraphicsContext
currentContext]graphicsPort];
CGContextSetShouldSmoothFonts(ctx,YES);
stuff inside the -drawRect: method? That is where it needs to be. Try both YES
and NO. Should be a visible difference.
Gerd
> On Apr 11, 2017, at 10:55, Navneet Kumar <[email protected]> wrote:
>
> Hi,
>
> Here is another image with a character in each case zoomed in using
> ColorMeter.
>
> http://i66.tinypic.com/2w5m795.jpg
>
> Wishes,
> Navneet
>
>
>> On 11-Apr-2017, at 2:00 AM, Quincey Morris
>> <[email protected]> wrote:
>>
>> On Apr 10, 2017, at 11:20 , Navneet Kumar <[email protected]
>> <mailto:[email protected]>> wrote:
>>>
>>> Actually I’m using text fields for simplicity at a lot of places. And
>>> drawInRect: at some places, in order to vertically centre the multi-line
>>> text more conveniently.
>>
>> Here are some possibilities to consider:
>>
>> 1. Shadow. What happens if you don’t specify the shadow?
>>
>> 2. Resolution. It may be that the text drawing ends up in drawing contexts
>> with different resolution backing stores (1x vs. 2x vs. 3x).
>>
>> 3. Size. Does the weird effect scale with point size? If you draw the text
>> much larger, are the results much closer to each other?
>>
>> 4. Anti-aliasing. There is some behind the scenes magic when drawing text,
>> that determines whether it knows the background color and therefore whether
>> it anti-aliases using the background color.
>>
>> 5. Overlays. It’s possible that NSTextField already draws the text more than
>> once, to give a partial outline effect that increases contrast with
>> mid-level color backgrounds.
>>
>> 6. Traits. NSTextField may be opting into the trait behavior that classifies
>> text as Body, Headline, Caption, etc. These things might cause some
>> adjustment to the font weight. Or the accessibility features that change the
>> font appearance. (But I’m not sure which of those is available on macOS.)
>>
>>
>
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