[Paraview] New panel, widget update
Utkarsh Ayachit
utkarsh.ayachit at kitware.com
Sat Aug 17 10:41:21 EDT 2013
Takuya,
I'm not sure if you've seen this wiki page:
http://paraview.org/Wiki/ParaView/Properties_Panel
A few things to note:
+ You can control the order in which the property widgets show up by
simply changing the order in which the properties are listed in the
XML.
+ There is a mechanism for adding a single "widget" for a collection
of properties. This is called "Property Group". You can put multiple
properties in a group and then specify a custom widget to create for
the entire group, using the panel_widget attribute. The widget can
decide how to create the internal widgets for each of the properties
in the group and how to lay them out. Thus you can create a property
group for the "Interval" row and put widgets horizontally. Some
examples to look at:
http://www.paraview.org/ParaView/Doc/Nightly/www/cxx-doc/classpqColorOpacityEditorWidget.html
http://www.paraview.org/ParaView/Doc/Nightly/www/cxx-doc/classpqFontPropertyWidget.html
+ Stay away from the temptation to put a property group for the entry
proxy, however. The "search" feature cannot work for widgets in a
property group (except for the property groups that are don't have any
custom widget, but are simply used for grouping i.e. those that don't
specify the panel_widget attribute).
+ For the checkboxes in the collapsible group, I'd suggest making them
as "advanced" and putting them in a property group without any
"panel_widget".
To answer your question specifically, it's just incidental that the
pqPropertyWidget is instantiated without a parent set, it gets set
afterwords. But it's dangerous for any pqPropertyWidget to try to muck
with the layout of others, since the panel's layout is dynamic. It
changes based on the search text the user put or the state of the
advanced button. The logic for the layouting is within the
pqProxyWidget, in case you're interested.
Utkarsh
On Sat, Aug 17, 2013 at 7:56 AM, Takuya OSHIMA
<oshima at eng.niigata-u.ac.jp> wrote:
> I am now trying to migrate my custom reader panel to the new
> architecture. In the old panel, my custom panel code rearranged the
> auto-generated layout of properties as attached screenshot to keep the
> height of the panel short. Note lined-up controls at the top,
> two-column layout of array selections at the middle, and checkboxes on
> a collapsible panel at the bottom. This rearrangement was easy because
> the custom code was a subclass of a panel (a
> pqAutoGeneratedObjectPanel). I believe this type of saving screen
> space is more important for the new properties panel which combines
> proxy and display properties in a single panel.
>
> In the new panel, if I am not wrong a customization has to be done per
> widget basis. I thought I'd create a propertyWidget and let its
> constructor
> MyPropertyWidget::MyPropertyWidget(vtkSMProxy *smproxy, vtkSMProperty *smproperty, QWidget *parentObject=0)
> do the rearrangement, i.e. I hoped I could obtain the parent panel
> object by parentObject of the above signature. However, I always
> get a null pointer.
>
> Perhaps this is because in pqProxyWidget::createWidgetForProperty() in
> pqPropertyWidget.cxx, the createdWidgetForProperty() call to
> pqPropertyWidgetInterface is not given parentObj unlinke other
> property widgets (pqDoubleVectorPropertyWidget etc). Why? - Or is
> there an alternative?
>
> Takuya OSHIMA, Ph.D.
> Faculty of Engineering, Niigata University
> 8050 Ikarashi-Ninocho, Nishi-ku, Niigata, 950-2181, JAPAN
>
> From: Takuya OSHIMA <oshima at eng.niigata-u.ac.jp>
> Subject: Re: [Paraview] New panel, widget update
> Date: Thu, 08 Aug 2013 10:02:37 +0900 (JST)
>
>> Utkarsh, thanks for the input about the behavior.
>>
>>> If you can point me to the code, I wouldn't mind taking a look. Also,
>>> should we be moving this reader/panel code into ParaView itself?
>>
>> The code is available from (it's still an SVN project):
>> svn checkout svn://svn.code.sf.net/p/of-interfaces/code/trunk/vtkPOFFReader
>>
>> I would be _very happy_ if you (or someone) integrate the code into
>> ParaView itself.
>>
>> Takuya OSHIMA, Ph.D.
>> Faculty of Engineering, Niigata University
>> 8050 Ikarashi-Ninocho, Nishi-ku, Niigata, 950-2181, JAPAN
>>
>> From: Utkarsh Ayachit <utkarsh.ayachit at kitware.com>
>> Subject: Re: [Paraview] New panel, widget update
>> Date: Wed, 7 Aug 2013 11:20:57 -0400
>>
>>> Takuya,
>>>
>>> You can still continue to do what you're doing. You can add a custom
>>> widget for some property that still listens to the dataUpdated() event
>>> from the pqPipelineSource corresponding to the reader's proxy. But I
>>> don't think logic, as this this for adding text to views should be in
>>> the panel. It should be a separate component, e.g. the behaviors
>>> (http://www.paraview.org/ParaView3/Doc/Nightly/www/cxx-doc/group__Behaviors.html).
>>> That makes it possible to handle the cases where multiple views are
>>> created/added more gracefully than one could with the panel.
>>>
>>> If you can point me to the code, I wouldn't mind taking a look. Also,
>>> should we be moving this reader/panel code into ParaView itself?
>>>
>>> Utkarsh
>>>
>>> On Sat, Aug 3, 2013 at 10:23 PM, Takuya OSHIMA
>>> <oshima at eng.niigata-u.ac.jp> wrote:
>>>> Hi Felipe, Utkarsh,
>>>>
>>>> I'm interested in this too because the custom panel of my reader (the
>>>> SourceForge version of the OpenFOAM reader) does a similar thing. In
>>>> my scenario I wanted to add some text actors on the 3D views outside of
>>>> the pipeline. The world coordinates of the actors are calculated by
>>>> the reader during update and the panel pulls the results after the
>>>> update. Then the panel instructs back the server to generate text
>>>> actors outside of the pipeline and to superimpose them on the 3D
>>>> views.
>>>>
>>>> I haven't tried the new panel architecture yet but in the old
>>>> architecture, I created a slot (named onDataUpdated()) in my custom
>>>> panel code and connected it to the dataUpdated() signal of the
>>>> corresponding pqPipelineSource of the reader proxy (not the
>>>> dataUpdated() of the pqProxyPanel). The methodology worked well for
>>>> the old architecture. I wonder if by any chance it also works for the
>>>> new one or not?
>>>>
>>>> Takuya OSHIMA, Ph.D.
>>>> Faculty of Engineering, Niigata University
>>>> 8050 Ikarashi-Ninocho, Nishi-ku, Niigata, 950-2181, JAPAN
>>>>
>>>> From: Utkarsh Ayachit <utkarsh.ayachit at kitware.com>
>>>> Subject: Re: [Paraview] New panel, widget update
>>>> Date: Thu, 1 Aug 2013 14:21:45 -0400
>>>>
>>>>> The short answer is this is not possible. The properties panel is not
>>>>> really meant to show results produced by the filter/reader. You could
>>>>> add a "information panel" i.e. a new dock widget that shows all such
>>>>> relevant information ad then you can use custom information properties
>>>>> on the proxy for the reader to query the current value for f2, for
>>>>> example.
>>>>>
>>>>> We could extend the pqProxyWidget class to show widgets for
>>>>> information-only properties, but that too won't solve your problem
>>>>> since ParaView will not know when the information has changed.
>>>>> Currently, it will do that when the property on that proxy was changed
>>>>> and the user hit apply -- which is a good time to assume some of the
>>>>> information-properties may have changed.
>>>>>
>>>>> Sorry, I don't have a direct answer for you, but I hope that gives you
>>>>> some ideas.
>>>>>
>>>>> Utkarsh
>>>>>
>>>>> On Thu, Aug 1, 2013 at 8:43 AM, felipe.bordeu at ec-nantes.fr
>>>>> <felipe.bordeu at ec-nantes.fr> wrote:
>>>>>> Also, had I said before, my reader y capable of generate data based in the value of the slider. This value is send using a keyinformation downstream in the pipeline. Then I have an optimizer fiter capable of setting automatically this value(sending a request upstream). I whould like the properties panel to be updated with the final valiue.
>>>>>>
>>>>>> Felipe
>>>>>> -----Message d'origine-----
>>>>>> De:Felipe Bordeu
>>>>>> Envoyé: 01/08/2013, 14:33
>>>>>> A: Felipe Bordeu Weldt
>>>>>> Sujet: RE: [Paraview] New panel, widget update
>>>>>>
>>>>>> -----Message d'origine-----
>>>>>> De:Felipe Bordeu Weldt
>>>>>> Envoyé: 30/07/2013, 21:23
>>>>>> A: paraview at paraview.org
>>>>>> Sujet: Re: [Paraview] New panel, widget update
>>>>>>
>>>>>>
>>>>>> Hi,
>>>>>>
>>>>>> the short story:
>>>>>>
>>>>>> In my custom reader select some values using some sliders. Then push
>>>>>> the Apply, at that moment, I (I mean the reader) read the file make
>>>>>> the calculations for the construction of a field and set the sliders
>>>>>> to the real final values calculated by the reader (so the user is
>>>>>> aware of with values are used).
>>>>>>
>>>>>> the long story:
>>>>>>
>>>>>> Ok, my solution can be written like this T(x,y,z,r,s,t) =
>>>>>> f1(x,y,z)*f2(r,s,t) (this is a separation of variables). where f1 is
>>>>>> a nodalfield in a mesh on the x,y,z space, and f2 is a nodalfield in a
>>>>>> different mesh in the (r,s,t) space.
>>>>>> So my file holds 2 (or more) meshes with associated fields.
>>>>>> My field T (that lives in a 6 dimension space) cant be visualized in
>>>>>> ParaView (or any visualization tool). So my idea is to fix (r,s,t) so
>>>>>> the field T becomes T(x,y,z,r0,s0,t0) = T(x,y,z) (this is a 3D field
>>>>>> and can be visualized in ParaView).
>>>>>>
>>>>>> In my custom reader I use 3 slider to select the values of r,s,t, and
>>>>>> then internally I search for the closest point in the mesh (to get the
>>>>>> value of f2). And with the older panel I used to update the slider so
>>>>>> the user can know the point that is used for the calculation.
>>>>>>
>>>>>> In this video you can see the reader in action http://www.youtube.com/watch?v=o6Vzww_cmhA#at
>>>>>> =26 (details in http://rom.research-centrale-nantes.com/overview/)
>>>>>> but in this case I use the interpolation in the r,s,t space so no
>>>>>> update is done.
>>>>>>
>>>>>>
>>>>>> It this clear enough?
>>>>>>
>>>>>> Felipe
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> Le 30 juil. 13 à 16:01, Utkarsh Ayachit a écrit :
>>>>>>
>>>>>>> Felipe,
>>>>>>>
>>>>>>> Can you elaborate on why you need to do this?
>>>>>>>
>>>>>>> Thanks
>>>>>>> Utkarsh
>>>>>>>
>>>>>>> On Tue, Jul 30, 2013 at 2:35 AM, Felipe Bordeu Weldt
>>>>>>> <felipe.bordeu at ec-nantes.fr> wrote:
>>>>>>>> Hello,
>>>>>>>>
>>>>>>>> In the old panel system, the pqProxyPanel has a
>>>>>>>> updateInformationAndDomains() and the dataUpdated() to update the
>>>>>>>> panel AFTER the algorithm is executed.
>>>>>>>> How can I achieve this in the new panel architecture ??
>>>>>>>>
>>>>>>>> My new panel is a subclass of pqPropertyWidget.
>>>>>>>>
>>>>>>>> Felipe
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>>>>>>
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>>>>>
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