[haiku-3rdparty-dev] Re: Know size of DrawString?
- From: hey68 you <hey68you@xxxxxxxxx>
- To: haiku-3rdparty-dev@xxxxxxxxxxxxx
- Date: Tue, 15 Nov 2011 16:29:43 +0200
Thank you both - it's working nicely! (Yes that 5.0 was for example only,
because I didn't remember about the baseline calculation issue - so double
thanks for catching that too!!).
On Tue, Nov 15, 2011 at 3:51 PM, Stephan Aßmus <superstippi@xxxxxx> wrote:
> On 15.11.2011 14:40, Rene Gollent wrote:
>
>> On Tue, Nov 15, 2011 at 8:36 AM, Stephan Aßmus<superstippi@xxxxxx>
>> wrote:
>>
>>> What is "5.0"? This won't work. The vertical coordinate passed to
>>> DrawString
>>>
>>
>> The 5.0 was from his original example, I assumed he simply meant
>> horizontally centered since all he was asking about was the width
>> calculation.
>>
>
> No problem. Some APIs like SWT use the top-left coordinate of the string
> bounds for their drawing operation. (Which only works, though, if the
> string bounds are based on the maximum height a string can have in the
> given font, not on the actual height of a particular string...) I thought
> maybe you mixed up another API. :-) In any case, his original code would
> have worked only for extremly small font sizes where the ascent is below 5
> pixels height. Otherwise the font would have been cut off at the top. Or
> maybe he did not use the view bounds, but some modified rectangle layouted
> somewhere inside the view with room above.
>
> Best regards,
> -Stephan
>
>
>
>
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