Details
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Bug
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Resolution: Unresolved
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P3: Somewhat important
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None
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5.15.2
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None
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Windows
Description
I've recently upgraded from Qt 5.6.3 to Qt 5.15.2 and started noticing the following issue. I have a QTableWidget which has a bunch of QComboBoxes as cell widgets. The application uses the following stylesheet:
QComboBox:hover{background: yellow;}
QTableView::item:hover{color: red;}
Now when showing the table and hovering over a QComboBox on the last visible row, the table starts auto-scrolling down, as shown in the attachment. This doesn't happen if I hover over a normal QTableWidgetItem on the last visible row as shown on the image.
If I remove either of the hover keyword from the stylesheet, then things work fine but they style is lost. My guess is that there is a conflict between QTableView::item and QComboBox when it's used as a cell widget so I've tried being more explicit about which QComboBoxes the stylesheet should apply to by using
QTableView QComboBox:hover{background: yellow;}
QTableView::item:hover{color: red;}
but that didn't help either. I can confirm this issue didn't exist with Qt 5.6.3.
Sample code for reproducing:
#include <QTableWidget> #include <QComboBox> #include <QApplication> int main(int argc, char *argv[]) { QApplication a(argc, argv); qApp->setStyleSheet( "QComboBox{background: yellow;}" "QTableView::item:hover{color: red;}" ); auto rows = 100; auto cols = 5; auto table = new QTableWidget(rows, cols); for(auto i = 0; i != rows; ++i) { for(auto j = 0; j != cols; ++j) { if(j == 0) { auto item = new QTableWidgetItem("hello"); table->setItem(i, j, item); } else { auto cb = new QComboBox(); cb->addItems(QStringList() << "Item1" << "Item2"); table->setCellWidget(i, j, cb); } } } table->setMinimumSize(800,600); table->show(); return a.exec(); }
