First of all, please be aware that this is almost certainly *not* a PyQt
issue.
After that, if you're not certain if the display scaling may be related,
the simplest solution is to simply change your display settings and see
what happens.
Then, some Qt widget types may behave differently depending on their
relationship within the window management environment: the same QWidget can
have different appearance and metrics (including margins, borders, etc.)
depending on many aspects: QWidget subclasses (standard Qt types or custom
subclasses) may work differently if they're top level windows or not, which
also is quite relevant for dialogs (which can be treated differently
depending on the OS, including different versions of the same platform).
Some further suggestions:
- make a practical, immediate comparison; don't ask people to manually test
differences (which may be difficult to compare across modifications) or
modify your code in ways that would potentially invalidate your case:
create a program that shows *two* windows with the different
container_frame value (possibly with a related window title to simplify
recognition) so that everybody can easily see the differences at a glance;
- check if adding contents to a different *and/or* further container makes
any difference (eg: use QWidget instead of QDialog, then also try to add
the different "windows" to a main top level window); it's quite normal for
a container widget to display itself differently depending on the window
management relation: a "frame" may need a visual hint when added to a
further layout for which it may be part of a more relevant "widget
hierarchy", while that hint may not be that relevant if it's a top level
window itself;
- remember that Qt scroll areas all inherit from QAbstractScrollArea, which
in turn inherits from QFrame, making the above statement even more
relevant; some styles draw contents quite differently depending on their
"level" within the top level window (the base QWidget itself behaves
differently in some situations, depending on its top level state);
- Qt widget styling is quite complex and not always perfect; I've seen some
cases of widgets behaving/displaying differently depending on when/how
they're created or added to a parent, because some widgets (especially
complex ones such as scroll areas) are in part definitively "initialized"
at some point and not properly updated afterwards, even if the parent (or
the style) has changed;
- also remember that, while the "fusion" style is intended to be as
consistent as possible across different systems, every platform, OS
version, system (hw+sw) and user configuration has its own quirks;
specifically, some "metrics" and related appearances (frames, boxes,
paddings, margins and related appearances, even including border sizes and
their display) will always potentially be shown somehow differently, even
on theoretically "similar" systems;
- finally, while relatively rare, even the above compliant "fusion" style
has received some updates, even indirectly (possibly causing some
regressions due to the introduction of changes that may affect it; consider
the case of the "modern" window style introduced in Qt 6.7);
Best regards,
MaurizioB
Il giorno sab 20 set 2025 alle ore 03:15 John Sturtz <john at sturtz.org> ha
scritto:
> Hello again good PyQt folks.
>> I'm having a deal of trouble consistently displaying the frame that (I
> think) should appear around a QTreeView, which is embedded in a QDialog.
> I specify the frame as follows:
>> self.treeView.setFrameStyle(
> QtWidgets.QFrame.Shape.StyledPanel|
> QtWidgets.QFrame.Shadow.Raised
> )
>> Sometimes the frame doesn't display at all. Sometimes parts of it will
> display (for example, three sides but not the fourth).
>> Attached is a sample script. It does two different things (controlled by
> setting the boolean variable on line #14).
>> (1)
> In one case, it creates a QTreeView, places it inside a QHBoxLayout, and
> puts the layout into the main layout for the QDialog. On my computer,
> what I get in this case is frame on both sides and the bottom of the tree
> view, but not the top.
>> (2)
> In the other case, the script creates the QTreeView, puts the tree view
> into a QHBoxLayout, then puts that layout into a QFrame and adds the
> frame to the dialog's main layout. In that case, I get no frame around the
> tree view at all.
>> (Toggle between case 1 and case 2 by setting the boolean on line #14 to
> False or True, respectively).
>> Am I doing something wrong here?
>> BTW, this is Windows 11, and I have the System>Display Scale setting to
> 125%. It this possibly the cause of the problem?
>> Thanks again!
>> /John
>
--
È difficile avere una convinzione precisa quando si parla delle ragioni del
cuore. - "Sostiene Pereira", Antonio Tabucchi
http://www.jidesk.net
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‘She has never mentioned her father to me. Was he—well, the sort of man whom the County Club would not have blackballed?’ "We walked by the side of our teams or behind the wagons, we slept on the ground at night, we did our own cooking, we washed our knives by sticking them into the ground rapidly a few times, and we washed our plates with sand and wisps of grass. When we stopped, we arranged our wagons in a circle, and thus formed a 'corral,' or yard, where we drove our oxen to yoke them up. And the corral was often very useful as a fort, or camp, for defending ourselves against the Indians. Do you see that little hollow down there?" he asked, pointing to a depression in the ground a short distance to the right of the train. "Well, in that hollow our wagon-train was kept three days and nights by the Indians. Three days and nights they stayed around, and made several attacks. Two of our men were killed and three were wounded by their arrows, and others had narrow escapes. One arrow hit me on the throat, but I was saved by the knot of my neckerchief, and the point only tore the skin a little. Since that time I have always had a fondness for large neckties. I don't know how many of the Indians we killed, as they carried off their dead and wounded, to save them from being scalped. Next to getting the scalps of their enemies, the most important thing with the Indians is to save their own. We had several fights during our journey, but that one was the worst. Once a little party of us were surrounded in a small 'wallow,' and had a tough time to defend ourselves successfully. Luckily for us, the Indians had no fire-arms then, and their bows and arrows were no match for our rifles. Nowadays they are well armed, but there are[Pg 41] not so many of them, and they are not inclined to trouble the railway trains. They used to do a great deal of mischief in the old times, and many a poor fellow has been killed by them." As dusk came on nearly the whole population of Maastricht, with all their temporary guests, formed an endless procession and went to invoke God's mercy by the Virgin Mary's intercession. They went to Our Lady's Church, in which stands the miraculous statue of Sancta Maria Stella Maris. The procession filled all the principal streets and squares of the town. I took my stand at the corner of the Vrijthof, where all marched past me, men, women, and children, all praying aloud, with loud voices beseeching: "Our Lady, Star of the Sea, pray for us ... pray for us ... pray for us ...!" It had not occurred to her for some hours after Mrs. Campbell had told her of Landor's death that she was free now to give herself to Cairness. She had gasped, indeed, when she did remember it, and had put the thought away, angrily and self-reproachfully. But it returned now, and she felt that she might cling to it. She had been grateful, and she had been faithful, too.[Pg 286] She remembered only that Landor had been kind to her, and forgot that for the last two years she had borne with much harsh coldness, and with a sort of contempt which she felt in her unanalyzing mind to have been entirely unmerited. Gradually she raised herself until she sat quite erect by the side of the mound, the old exultation of her half-wild girlhood shining in her face as she planned the future, which only a few minutes before had seemed so hopeless. After he had gloated over Sergeant Ramsey, Shorty got his men into the road ready to start. Si placed himself in front of the squad and deliberately loaded his musket in their sight. Shorty took his place in the rear, and gave out: The groups about each gun thinned out, as the shrieking fragments of shell mowed down man after man, but the rapidity of the fire did not slacken in the least. One of the Lieutenants turned and motioned with his saber to the riders seated on their horses in the line of limbers under the cover of the slope. One rider sprang from each team and ran up to take the place of men who had fallen. "As long as there's men and women in the world, the men 'ull be top and the women bottom." Then, in the house, the little girls were useful. Mrs. Backfield was not so energetic as she used to be. She had never been a robust woman, and though her husband's care had kept her well and strong, her frame was not equal to Reuben's demands; after fourteen years' hard labour, she suffered from rheumatism, which though seldom acute, was inclined to make her stiff and slow. It was here that Caro and Tilly came in, and Reuben began to appreciate his girls. After all, girls were needed in a house—and as for young men and marriage, their father could easily see that such follies did not spoil their usefulness or take them from him. Caro and Tilly helped their grandmother in all sorts of ways—they dusted, they watched pots, they shelled peas and peeled potatoes, they darned house-linen, they could even make a bed between them. HoME一级毛片视频免费公开
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