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From: John Torjo (john.lists_at_[hidden])
Date: 2005-10-04 06:23:49

>>I might go further and add units (maybe defaulting to pixels)
>>typedef gui::rect<px,int> rect 1;
>>typedef gui::rect<pc,double> rect 2;
>>typedef gui:rect<mm,int> rect 3;
> That looks great :)!

I disagree. I think you should stick to only one type (probably float
for now, and eventually allow overriding it -- but, use this
consistently throughout the app).

Just think of the many places you'll need to deal with geometry
(rectangle/point/size), and converting from one type of unit (px to cm,
cm to in, etc) to another.

And, about usability in code. Why would I want in my program, both:
gui::rect<pc,double> and gui::rect<pc,int> ?
This IMHO would confuse users of the library.


John Torjo,    Contributing editor, C/C++ Users Journal
-- "Win32 GUI Generics" -- generics & GUI do mix, after all
-- - Sky's the limit!
-- - Click, Build, Run!

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