Review Request: Fix previous "Detach Tabs" patch

[Francesco Nwokeka]

> On July 11, 2011, 11:10 a.m., David Edmundson wrote:
> > app/telepathy-chat-ui.cpp, line 115
> > <http://git.reviewboard.kde.org/r/101899/diff/1/?file=26605#file26605line115>
> >
> >     personally I much prefer "foreach ". I think it's a lot easier to read.
> >     
> >     and you can just use 'break' instead of this "&& !found". 
> >     
> >     I wouldn't say your way is any better than what was there before, but not any worse either.
> >     
> >     Meh.
> >
> 
> Francesco Nwokeka wrote:
>     foreach creates a copy of every item contained in the vector plus the previous iteration cycled through the whole vector.
>     We don't need to cycle through the rest of the vector once the chatwindow has been found.
>     
>     I don't like to use "break" in cycles because they don't match a condition for which we're supposed to exit the cycle.
>     
>     I also found this on iterations with for & foreach http://www.codeproject.com/KB/cs/foreach.aspx
> 
> David Edmundson wrote:
>     - That link is talking about C#.
>     
>     - foreach here is a Qt addition to the C++ language. Whilst it (theoretically) does copy the list, thanks to implicit sharing that is just incrementing a ref count in the QList object.
>     - using const references saves it copying each item.
>     
>

ok, so a const reference solves the preformance issue. I found this post you guys might find interesting
http://labs.qt.nokia.com/2009/01/23/iterating-efficiently/

towards the end he says what you say. K, modifying the patch


- Francesco


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On July 9, 2011, 12:28 p.m., Francesco Nwokeka wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> http://git.reviewboard.kde.org/r/101899/
> -----------------------------------------------------------
> 
> (Updated July 9, 2011, 12:28 p.m.)
> 
> 
> Review request for Telepathy.
> 
> 
> Summary
> -------
> 
> This patch consists in a tidy-up of the previous patch and the elimination of unused methods, logic and the tidy up of some methods and functionality.
> Added comments to code as well.
> The aim of this patch is to keep the code as tidy and simple as possible.
> 
> 
> Diffs
> -----
> 
>   app/chat-tab.h 408bb91 
>   app/chat-tab.cpp 018868e 
>   app/chat-window.h a46e41b 
>   app/chat-window.cpp 28905fa 
>   app/telepathy-chat-ui.h ad6809f 
>   app/telepathy-chat-ui.cpp 71ac4ee 
> 
> Diff: http://git.reviewboard.kde.org/r/101899/diff
> 
> 
> Testing
> -------
> 
> Created more than one chat forcing the creation in one window, detached, closed, reopened and all went well.
> 
> 
> Thanks,
> 
> Francesco
> 
>

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