[Interest] building a light weight tree model

[Frank Rueter | OHUfx]

I need a few custom views for my data, including representing 
collections of files with a certain extension as virtual zip files, i.e. 
items that don't actually exist on disk.
I assumed using QFileSystemModel would not be the most efficient way to 
use i this case (based on various comments I read in the past).


On 2/05/17 6:25 PM, Ch'Gans wrote:
>
>
> On 2 May 2017 at 17:55, Frank Rueter | OHUfx <frank at ohufx.com 
> <mailto:frank at ohufx.com>> wrote:
>
>     Hi all,
>
>     Here is a snippet of test code to mimic a light weight tree model.
>     All it is trying to do is mimic the parenting according to the
>     directory structure on disk using QStandardItems in a QStandardModel.
>     It works, but it took me way longer to figure out than I expected,
>     and I have a feeling some of you may have good advise on how to
>     make it more efficient.
>     https://pastebin.com/vRkzDPtt
>
>
> What's your definition of "more efficient", what are the problems, 
> what make you think it's not efficient?
>
> If you want efficiency, then don't use python and don't use 
> QStandardModel, if you want expediency then use QFileSystemModel.
>
> My 2 cents.
> Chris
>
>
>
>
>     I am not using QFileSystemModel as I wanted to keep things as
>     efficient as possible and also need to add some custom items to
>     the model.
>     Also, for the Python programmers: in my actual code I am using
>     scandir.walk() instead of os.walk() for speed.
>
>     Any input would be greatly appreciated as I will need to run this
>     over disks that have massive amounts of files.
>
>     Cheers,
>     frank
>
>
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