On Sat, Sep 28, 2019 at 12:44 PM Thiede, Christoph <
Christoph.Thiede at student.hpi.uni-potsdam.de> wrote:

> Do you talk abound rounding effects?
>
That may have been it.

I remember some flickering effects myself when setting float bounds to the
> SystemWindowMorph, but I could not reproduce it; apparently, someone has
> added a check.
>
> Also, Morphic is not the only client of Rectangles, is it?
>
Actually, I believe it is.  Sure, other domains can and do use it but,
IIRC, it has a distinct "screen" layout, where "topLeft" is 0,0 instead of
bottom left as in Cartesia.  Accidentally swapping the two points; (e.g.,
as in, bottomRightPoint corner: topLeftPoint) will also break things.

> For example, LayoutFrames explicitly depend on floats.
>
>
> Or what issue are you talking about else? :)
>
I don't recall, sorry.

 - Chris



> Christoph
> ------------------------------
> *Von:* Squeak-dev <squeak-dev-bounces at lists.squeakfoundation.org> im
> Auftrag von Chris Muller <asqueaker at gmail.com>
> *Gesendet:* Donnerstag, 26. September 2019 03:58:44
> *An:* squeak dev
> *Betreff:* Re: [squeak-dev] The Inbox: Graphics-ct.419.mcz
>
> Be careful about using non Integers with Rectangles, too.  As with
> Intervals, I think I remember that some of the API will break.
>
> On Fri, Sep 20, 2019 at 12:46 PM <commits at source.squeak.org> wrote:
>
>> A new version of Graphics was added to project The Inbox:
>> http://source.squeak.org/inbox/Graphics-ct.419.mcz
>>
>> ==================== Summary ====================
>>
>> Name: Graphics-ct.419
>> Author: ct
>> Time: 20 September 2019, 7:45:53.388726 pm
>> UUID: 5deebfce-0321-9645-aebd-0b4bfb428259
>> Ancestors: Graphics-nice.417
>>
>> Add Rectangle>>#pointAtFraction:
>>
>> Example: [(5 at 5 rect: 10 at 20) pointAtFraction: 0.5 at 1] will give you 7.5 @
>> 20.
>>
>> dep:feat-ol
>>
>> =============== Diff against Graphics-nice.417 ===============
>>
>> Item was added:
>> + ----- Method: Rectangle>>pointAtFraction: (in category 'rectangle
>> functions') -----
>> + pointAtFraction: relativePoint
>> +
>> +       ^ self origin + (self extent * relativePoint)!
>>
>>
>>
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