[Qt-interest] Writing a table proxy model for QFileSystemModel

[Mandeep Sandhu]

Anyone?

Thanks,
-mandeep

On Tue, Jun 29, 2010 at 9:57 PM, Mandeep Sandhu
<mandeepsandhu.chd at gmail.com> wrote:
> Hi All,
>
> I'm trying to write a proxy model for a QFileSystemModel which will
> proxy the data contained in a dir (set by calling setRootPath() on the
> FS model) as a tabular data. The dimension of the table will be set
> externally.
>
> So eg if I have a dir A which has 3 subdirs and 7 files, if dir A is
> set as the root and the table dimension is set to 3X3, i'll be showing
> only the first 9 listings under dir A (the subdir data is not expanded
> since table models are not hierarchical).
>
> I have written a proxy model that can proxy a QStringListModel as a
> table. I've applied a QTableView onto it and it has worked fine.
>
> I feel writing a proxy for a FS model should be similar. Once I get
> the root index from which the table data has to be proxied (model
> index got by setRootPath()), proxying the data as a table should be
> similar to what is needed for proxying a list model data.
>
> BUT. I'm not able to use the model index that I get from a call to
> setRootPath().
>
> Eg:
>
> $ $ ls -go /tmp/test/
> total 8
> -rw-r--r-- 1    0 2010-06-29 21:44 a.txt
> -rw-r--r-- 1    0 2010-06-29 21:44 b.txt
> -rw-r--r-- 1    0 2010-06-29 21:44 c.txt
> drwxr-xr-x 2 4096 2010-06-29 21:44 d
> drwxr-xr-x 2 4096 2010-06-29 21:45 e
>
> <snip>
> ...
> QFileSystemModel *model = new QFileSystemModel(this);
> QModelIndex idx = model->setRootPath("/tmp/test/);
>
> qDebug() << "rows=" << model->rowCount(idx);
> qDebug() << "cols=" << model->columnCount(idx);
> ...
> </snip>
>
> returns:
>
> rows= 0
> cols= 4
>
> Shouldn't it have returned "rows" as 5 (3 regular files + 2 dirs) ?
> (I'm assuming here that the file system model stores the data in a
> hierarchical manner, similar to the tree model shown in the examples).
>
> Regards,
> -mandeep
>