[Interest] crash when using multiple setSectionResizeMode() calls in QTableView

[Marian Beermann]

Hi Frank,

I didn't spot it earlier, but now I saw it. You're manipulating
QHeaderView's sections before setting the model on the view. Most things
you can do with a QHeaderView require a model to be present.

If you move these calls to after a model has been set, everything works.

https://gist.github.com/enkore/727e3f912c8f9380017fb78591f2a05e

-Marian

On 8/15/18 2:34 AM, Frank Rueter | OHUfx wrote:
> Hi,
> 
> I isolated the problem into a small snippet:
> https://gitlab.com/snippets/1744780
> 
> This still crashes for me.
> 
> I do get the result I’m after by only setting one resize mode, i.e.:
> 
> |header.setSectionResizeMode(5, QtWidgets.QHeaderView.Fixed) |
> 
> However, what I’m really after is the behaviour of
> 
> |header.setStretchLastSection(True) |
> 
> but I need the second last section to stretch while the last one remains
> a fixes size.
> Is there a way to do this or do I have to write my own header view for that?
> 
> Cheers,
> frank
> 
> On 14/08/18 12:17 PM, Frank Rueter | OHUfx wrote:
> 
>> Thanks for testing Marian, much appreciated!
>> Interesting it won't crash for you. I will try it in a different IDE
>> (using WingIDE normally) and a different machine in case there is
>> something wrong with my install.
>>
>> Cheers,
>> frank
>>
>> On 13/08/18 10:10 PM, Marian Beermann wrote:
>>> I tried your setSectionResizeMode snippet on a table model
>>> whose headerData() is the same as yours and it doesn't cause a crash for
>>> me. I don't think the other roles are required (at least to not have a
>>> crash).
>>>
>>> On 13.08.2018 11:30, Frank Rueter | OHUfx wrote:
>>>> Thanks. My header data simply looks like this:
>>>>
>>>> |def headerData(self, section, orientation, role): if orientation ==
>>>> QtCore.Qt.Horizontal: if role == QtCore.Qt.DisplayRole: return
>>>> self.header_labels[section] |
>>>>
>>>> where: self.header_labels just contains a list of strings.
>>>>
>>>> I guess I need to implement size hint roles?! I will try that tomorrow.
>>>>
>>>> Tanks for the tip!
>>>>
>>>> Cheers,
>>>> frank
>>>>
>>>>
>>>>> Must be something in your code; I'd start by double-checking
>>>>> everything
>>>>> related to the header data in your model.
>>>>>
>>>>> -Marian
>>>>>
>>>>> On 13.08.2018 05:17, Frank Rueter | OHUfx wrote:
>>>>>> Hi all,
>>>>>>
>>>>>> using PySide2 I am trying to set different resize modes for each
>>>>>> of my
>>>>>> columns in a table view, but as soon as I set more than one I get
>>>>>> a crash.
>>>>>>
>>>>>> Here is what I do:
>>>>>>
>>>>>> |class MyView(QtWidgets.QTableView): def __init__(self, parent=None):
>>>>>> super(MyView, self).__init__(parent) header = self.horizontalHeader()
>>>>>> header.setSectionResizeMode(0, QtWidgets.QHeaderView.Fixed)
>>>>>> header.setSectionResizeMode(1, QtWidgets.QHeaderView.Interactive) |
>>>>>>
>>>>>> Is this a bug or am I doing something wrong?
>>>>>>
>>>>>> Cheers,
>>>>>> frank
>>>>>>
>>>>>> ​
>>>>>>
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