[QGIS-Developer] QgsProcessingParameterMatrix - numberRows is not respected in the UI

[Nyall Dawson]

On Mon, 4 Mar 2019 at 21:20, René-Luc Dhont <rldhont at gmail.com> wrote:
>
> Hi Nyall,
>
> Thanks for the answer.
>
> To work around the issue, I have to provide a default value.
>
> In the case of a QgsProcessingParameterMatrix with fixed rows number has
> a default value have to be provided by the definition or the class ?

What about just creating an empty table with the required number of
rows in QgsProcessingMatrixParameterDialog::populateTable whenever
mParam has a fixed number of rows set?

Nyall


>
> René-Luc
>
> Le 02/03/2019 à 00:38, Nyall Dawson a écrit :
> > On Sat, 2 Mar 2019 at 00:11, René-Luc Dhont <rldhont at gmail.com> wrote:
> >> Hi Devs,
> >>
> >> I'd like to use QgsProcessingParameterMatrix with fixed rows number,
> >> like it's defined in SAGA User defined filter algorithm.
> >>
> >> And like in SAGA User defined filter algorithm, the table displayed has
> >> no rows.
> >>
> >> Which part of the QGIS code has to build the displayed table ?
> > https://github.com/qgis/QGIS/blob/master/src/gui/processing/qgsprocessingmatrixparameterdialog.cpp#L111
> >
> > with unit tests here:
> > https://github.com/qgis/QGIS/blob/master/tests/src/gui/testprocessinggui.cpp#L1760
> >
> > Let me know if you have any questions about this code -- it's only
> > new, so is fresh on my mind.
> >
> > Nyall
> >
> >> Thanks,
> >> René-Luc
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