[Ctk-developers] ctkMatrixWidget: setValue not invokable from Python

[Julien Finet]

Maybe QVector<double> needs to be entered in the meta object system.

Can you try adding
qRegisterMetaType<QVector<double> > ("QVector<double>");

in the constructor function of ctkMatrixWidget (better: init() of
ctkMatrixWidgetPrivate if it exists)

j.

On Fri, Aug 19, 2011 at 11:55 AM, Daniel Haehn <haehn at bwh.harvard.edu>wrote:

> Hi again,
>
> so it seems that PythonQt has problems to wrap a QVector<double>. The
> setValues method is not accesible from python and the values() method
> returns:
>
>  QVector<double> (C++ Object 0x14c479690)
>
> rather than a python list. Maybe PythonQt only supports QVector<double*> ?
>
> Maybe it makes more sense to return a QVariantList which maps to
> python tuples in PythonQt?
>
> What do you guys think?
>
> Thanks,
> Daniel
>
> On Wed, Aug 17, 2011 at 7:56 PM, Daniel Haehn <haehn at bwh.harvard.edu>
> wrote:
> > Great, thank you!
> >
> > Daniel
> >
> > On Wed, Aug 17, 2011 at 7:48 PM, Julien Finet <julien.finet at kitware.com>
> wrote:
> >> Added in CTK:
> >>
> https://github.com/commontk/CTK/commit/5ebd60003b230f961bfb5d2c89c17f0ddcb4a151
> >> Added in Slicer: r17743
> >>
> http://viewvc.slicer.org/viewvc.cgi/Slicer4?view=revision&revision=17743
> >> Thanks,
> >> Julien.
> >>
> >> On Wed, Aug 17, 2011 at 4:55 PM, Daniel Haehn <haehn at bwh.harvard.edu>
> wrote:
> >>>
> >>> Thanks for the feedback,
> >>>
> >>> I just commited
> >>>
> >>>
> https://github.com/haehn/CTK/commit/583a229fce5d99f06b78bab1c3a38cfe4255a328
> >>>
> >>> Would be great if we could encounter these changes to upstream and
> >>> then to Slicer CTK - the EMSegmenter needs it :)
> >>>
> >>> Thx,
> >>> Daniel
> >>>
> >>> On Wed, Aug 17, 2011 at 4:48 PM, Julien Finet <
> julien.finet at kitware.com>
> >>> wrote:
> >>> > Looks good, except that when populating the values vector
> >>> > (ctkMatrixWidget::values()), I would call ctkMatrixWidget::value(i,j)
> >>> > instead of manually querying the data in order to factorize code.
> >>> > Thanks,
> >>> > Julien.
> >>> > p.s.I agree that setValues() would also beneficiate from some
> >>> > refactorization as well, but it's another story...
> >>> >
> >>> > On Wed, Aug 17, 2011 at 4:15 PM, Daniel Haehn <haehn at bwh.harvard.edu
> >
> >>> > wrote:
> >>> >>
> >>> >> Hi guys,
> >>> >>
> >>> >> could you please review
> >>> >>
> >>> >>
> >>> >>
> >>> >>
> https://github.com/haehn/CTK/tree/add-SetValuesQPropertyMatrixWidget-feature
> >>> >>
> >>> >> Thx,
> >>> >> Daniel
> >>> >>
> >>> >> On Tue, Aug 16, 2011 at 3:57 PM, Jean-Christophe Fillion-Robin
> >>> >> <jchris.fillionr at kitware.com> wrote:
> >>> >> > +1 for setValues
> >>> >> > Jc
> >>> >> >
> >>> >> > On Tue, Aug 16, 2011 at 3:11 PM, Julien Finet
> >>> >> > <julien.finet at kitware.com>
> >>> >> > wrote:
> >>> >> >>
> >>> >> >> Because a "Q_PROPERTY adds features through the meta-object
> system".
> >>> >> >> Practically in this case, it allows the property to be wrapped
> with
> >>> >> >> python, and initial values can also be set directly via the
> >>> >> >> Designer.
> >>> >> >> As a more philosophical point, the matrix "values" are a
> "property"
> >>> >> >> of
> >>> >> >> the
> >>> >> >> matrix.
> >>> >> >> Julien.
> >>> >> >> On Tue, Aug 16, 2011 at 3:04 PM, Daniel Haehn
> >>> >> >> <haehn at bwh.harvard.edu>
> >>> >> >> wrote:
> >>> >> >>>
> >>> >> >>> Hi Julien,
> >>> >> >>>
> >>> >> >>> why do you think a Q_PROPERTY is better? Anyway, I will give it
> a
> >>> >> >>> shot
> >>> >> >>> and let you know.
> >>> >> >>>
> >>> >> >>> Cheers,
> >>> >> >>> Daniel
> >>> >> >>>
> >>> >> >>> On Tue, Aug 16, 2011 at 1:48 PM, Julien Finet
> >>> >> >>> <julien.finet at kitware.com>
> >>> >> >>> wrote:
> >>> >> >>> > Either that or we make a Q_PROPERTY named "values":
> >>> >> >>> > Q_PROPERTY( QVector<double> values READ values WRITE
> setValues)
> >>> >> >>> > There is already: ctkMatrixWidget::setVector(QVector<double>),
> >>> >> >>> > maybe
> >>> >> >>> > it
> >>> >> >>> > could be renamed into setValues and values() should then also
> be
> >>> >> >>> > written.
> >>> >> >>> > Julien.
> >>> >> >>> >
> >>> >> >>> > On Tue, Aug 16, 2011 at 12:37 PM, Daniel Haehn
> >>> >> >>> > <haehn at bwh.harvard.edu>
> >>> >> >>> > wrote:
> >>> >> >>> >>
> >>> >> >>> >> Hi guys,
> >>> >> >>> >>
> >>> >> >>> >> it seems that it is not possible to set a value of a
> >>> >> >>> >> ctkMatrixWidget
> >>> >> >>> >> from Python?
> >>> >> >>> >>
> >>> >> >>> >> Shall we just enable Q_INVOKABLE on the
> >>> >> >>> >> ctkMatrixWidget::setValue
> >>> >> >>> >> method?
> >>> >> >>> >>
> >>> >> >>> >> Thanks,
> >>> >> >>> >> Daniel
> >>> >> >>> >> _______________________________________________
> >>> >> >>> >> Ctk-developers mailing list
> >>> >> >>> >> Ctk-developers at commontk.org
> >>> >> >>> >>
> >>> >> >>> >>
> http://public.kitware.com/cgi-bin/mailman/listinfo/ctk-developers
> >>> >> >>> >
> >>> >> >>> >
> >>> >> >>
> >>> >> >>
> >>> >> >> _______________________________________________
> >>> >> >> Ctk-developers mailing list
> >>> >> >> Ctk-developers at commontk.org
> >>> >> >>
> http://public.kitware.com/cgi-bin/mailman/listinfo/ctk-developers
> >>> >> >>
> >>> >> >
> >>> >> >
> >>> >> >
> >>> >> > --
> >>> >> > +1 919 869 8849
> >>> >> >
> >>> >> >
> >>> >
> >>> >
> >>
> >>
> >
>
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