QListWidget.setStyleSheet

jschwartzman

Each item in my ListWidget has different colored text on a white background. When selecting an item, I'd like to preserve the text color and indicate selection with a border or with a different color background. Everything I try sets the text color black for the selected item. Any suggestions?
Thanks!

JonB

@jschwartzman
You should show whatever you tried? You need to get down to the QListWidgetItem level. And that is not a QWidget, so you cannot set stylesheet on it directly, only via QListWidget::item etc. See if https://stackoverflow.com/questions/32311927/qlistwidgetsetstylesheet-and-qlistwidgetitemsetbackgroundcolor-relation gives you an idea how others tackle this?

jschwartzman

This is what I've tried:
self.listWidgetRepo.setStyleSheet("""
QlistWidget::item:selected { background: transparent; }
QListWidget::item:selected { border: 1px solid red; }
""")

It paints the border, but renders the text foreground color black. If I change it to:
self.listWidgetRepo.setStyleSheet("""
QListWidget::item:selected { foreground: green;
QListWidget::item:selected { background: transparent; }
QListWidget::item:selected { border: 1px solid red; }
""")

The selected text foreground color is still black.

Each item foreground color has a specific meaning and I'd like to preserve the foreground color while the item is selected.

I looked at the example code you provided but couldn't understand how it related to the selected state of the QListWidget.
Thanks.

JonB

@jschwartzman

QListWidget::item:selected { foreground: green;

You are missing the }.

J.Hilk

@jschwartzman

to add to @JonB

QlistWidget::item:selected { background: transparent; }

You wrote QlistWidget instead of QListWidget, makes a difference!

JonB

@jschwartzman
To add to posts from myself & @J-Hilk

{ foreground: ...

Could you clarify where you got foreground from as an attribute/property to change text color? It's not on https://doc.qt.io/qt-5/stylesheet-reference.html. You didn't just type it in without verifying it was correct, then find it didn't work and were surprised, did you? There is a property named color for setting text color, as per HTML, have you tried that?

And importantly, what about selection-color (& selection-background-color) which you see there:

The foreground of selected text or items.
This property is supported by all widgets that respect the QWidget::palette and that show selection text.

Have you investigated that?

jschwartzman

This works, but it's not what a want (I changed from a QListWidget to a QListView, but I'm not sure I needed to):

    self.listViewRepo.setStyleSheet("""
    QListView::item:selected { color: blue; }
    QListView::item:selected { background-color: white; }
    QListView::item:selected { border: 1px solid red; }
    """)

This gives me a selected row with the text rendered in blue on a white background.
What I want to know is how do I keep the same selected text foreground color that I set when I populated the list. I tried using self.listViewRepo.setProperty("textColor", color) when I populated the list, but I don't know how to access this property when the selection changes. And I don't know how to put it in the style sheet.
Any suggestions?
Thanks.

jschwartzman

@jschwartzman In other words, I want the selected text foreground color in my QListView to be a variable. It doesn't seem that I can do that with setStyleSheet. Can anyone point me in the right direction?
Thanks.

JonB

@jschwartzman

When the selection changes you get a signal. For, say, a QListView you need to look at self.listViewRepo.selectionModel().currentChanged signal. This means using https://doc.qt.io/qt-5/qitemselectionmodel.html.
Assuming the setProperty("textColor", color) works (I don't know if it does), then you just have to specify the correct desired color and you have it working as a variable.
If you want to do it via a stylesheet, in the string passed to self.listViewRepo.setStyleSheet you need to alter the QListView::item:selected { color: blue; } fragment in the string to output the desired color in-line, something like:

"""
...
QListView::item:selected { color: """ + color + """; }
...
"""

jschwartzman

That did it. Many thanks!

oncewealthy

@jschwartzman dordle I'm having trouble linking; what statement do I need to use? As far as I know, LIBS is what's used to create dlls and other types of library files.

JonB

@oncewealthy
Hello and welcome.

I don't know what your issue is, but for sure it has nothing to do with the setStyleSheet() that this topic is about. Please open your own new topic if you have questions about linking.

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QListWidget.setStyleSheet