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Details

Type: Bug
Resolution: Fixed
Priority: P2: Important
Fix Version/s: 6.9.0 Beta3
Affects Version/s: 6.8.0
Component/s: Widgets: Styles
Labels:
- reported_by_support_standard

Platform/s:

Windows
Commits:
44edab7c8 (dev), 37effa5dd (6.9), 94fe6f04f (6.8), c917d16f4 (dev), 1ac5e9807 (6.9)

Description

The QTreeWidget is rendering poorly when the frame style is set to QFrame::Plain | QFrame::Box while using the Windows 11 style.
To reproduce the issue, run the attached project and click on "QTreeWidget Bugs" button.
A detailed description is in the dialog itself.

Here also some reproducer for QTableView showing grid lines before:

int main(int argc, char* argv[])
{
    QApplication app(argc, argv);
    QTableWidget tw;
    tw.setColumnCount(5);
    tw.setRowCount(5);
    tw.setItem(0, 0, new QTableWidgetItem(app.style()->name()));
    tw.show();
    tw.setShowGrid(false);
    return app.exec();
}

Result after the current patches:

Attachments

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after.png
13 kB
04 Dec '24 18:25
before.png
16 kB
04 Dec '24 17:58
image-2025-02-20-16-47-58-818.png
5 kB
20 Feb '25 15:47
QTreeWidgetBugs_Dark_6.8.1_with_annotations.png
48 kB
10 Dec '24 22:21
QTreeWidgetBugs_Dark_6.8.1.png
40 kB
10 Dec '24 19:09
QTreeWidgetBugs_Light_6.8.1.png
34 kB
10 Dec '24 19:09
Windows11StyleIssues.zip
80 kB
26 Nov '24 07:38

Issue Links

is duplicated by

QTBUG-133391 QTableView shows partial grid when showGrid = false

Closed

QTBUG-133853 tableViewP->setShowGrid(false) still shows vertical lines

Closed

relates to

QTBUG-132187 QDrawUtil: qDrawPlainRoundedRect does not work well for high-dpi screens

Closed

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For Gerrit Dashboard: QTBUG-131585
#	Subject	Branch	Project	Status	CR	V
608778,12	Windows11Style: Misc cleanup for drawControl(CE_ItemViewItem)	dev	qt/qtbase	Status: MERGED	+2	0
608779,14	Widgets: add enum values to QStyleOptionViewItem::ViewItemFeature	dev	qt/qtbase	Status: MERGED	+2	0
611706,3	Windows11Style: fix drawing rounded corners in rtl itemviews	dev	qt/qtbase	Status: ABANDONED	+1	0
611707,1	Windows11Style: don't draw outside itemview rect	dev	qt/qtbase	Status: ABANDONED	+1	0
615490,2	Windows11Style: Misc cleanup for drawControl(CE_ItemViewItem)	6.9	qt/qtbase	Status: MERGED	+2	0
615529,2	Windows11Style: Misc cleanup for drawControl(CE_ItemViewItem)	6.8	qt/qtbase	Status: MERGED	+2	0
618425,2	Widgets: add enum values to QStyleOptionViewItem::ViewItemFeature	6.9	qt/qtbase	Status: MERGED	+2	0