Properties: a.b.c = 3

[Steven Schveighoffer]

On Thu, 30 Jul 2009 14:09:06 -0400, Nick Sabalausky <a at a.a> wrote:

> "Zhenyu Zhou" <rinick at gmail.com> wrote in message
> news:h4rfif$2os2$1 at digitalmars.com...
>>
>> e.g.
>> Rectangle rect(Rectangle r) {
>>  _rect = r;
>>  redraw();
>>  return _rect;
>> }
>>
>> If you allow
>> widget.rect.w = 200;
>> widget.rect.h = 100;
>> you will have to write much more code to handle the painting correctly.
>> and we don't want to call redraw twice here
>>
>
> I've dealt with that sort of thing in C# and it's a trivial issue. When  
> you
> write code such as the above, it's very clear that you're changing the  
> rect
> twice. If that's a problem, you just do this:
>
> widget.rect = Rect(200, 100);

Rect has 4 values (x, y, width, height), otherwise, the example doesn't  
make much sense.

-Steve