iOS Default font is wrong

[Stephen F Northover]

I was going to create a dummy control (say a Button) and ask for the 
font.  Just an idea.

Steve

On 2013-10-29 2:18 PM, Felipe Heidrich wrote:
> The code Richard sent is creating a dummy font and asking for its size.
>
> The problem is that there are about 3 thousand different fonts on the Mac ;-)
>
> Here we are creating a CTFont. For Mac OS X most native apps probably would be using a NSFont (cause that is what cocoa controls take). Likewise on iOS I think the "common" font is UIFont (cause I think that is what UIKIt controls take).
>
> Could anyone fire up Xcode, create a dummy iOS app, create a UIFont and see what is the size ?
>
> Felipe
>
>
> On Oct 29, 2013, at 8:40 AM, Stephen F Northover <steve.x.northover at oracle.com> wrote:
>
>> If the OS is reporting the wrong value for the default a classic trick is to create a dummy control that normally has the font we want and query that.
>>
>> Steve
>>
>> On 2013-10-29 11:21 AM, Richard Bair wrote:
>>> Hi guys,
>>>
>>> The default font for iOS is supposed to be System Bold 15 (according to http://stackoverflow.com/questions/17325152/what-size-font-is-the-title-in-a-default-uibutton anyway), and it does look more correct to me. Our code is getting to this native method in MacFontFinder.c
>>>
>>> JNIEXPORT jfloat JNICALL Java_com_sun_javafx_font_MacFontFinder_getSystemFontSize
>>>    (JNIEnv *env, jclass obj)
>>> {
>>>      CTFontRef font = CTFontCreateUIFontForLanguage(
>>>                           kCTFontSystemFontType,
>>>                           0.0, //get system font with default size
>>>                           NULL);
>>>      jfloat systemFontDefaultSize = (jfloat) CTFontGetSize (font);
>>>      CFRelease(font);
>>>      return systemFontDefaultSize;
>>> }
>>>
>>>
>>> However it appears the return value is 13 instead of 15 (and I don't know what the actual default font family / weight is that we're returning). It is possible the answer coming from this native API call is "wrong". Any ideas?
>>>
>>> Richard