How to change the text color of an item in a QListWidget?

[Juan Tigreros]

Hi everyone! 

Perhaps this is a simple question but I can seemed to succeed at googling it. Maybe someone here can help?

I would like to change the text color of a text or background color if the item in a qlistwidget? I am double clicking on an item and will like to change the color of it, then change it back once i double clicked in another item in the list. Any ideas?

[Justin Israel]

Check out setForeground and setBackground on the QListWidgetItem 

http://doc.qt.io/qt-4.8/qlistwidgetitem.html#setForeground

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[Juan Tigreros]

Thanks for the quick response Justin.

First, I should mention that I am fairly new to this. With that said, here is what im trying to do. 

    def doubleClickedItem(self):

        """for when an item is double clicked """

 

        theListWidget = self.sender()

        currentItem = theListWidget.currentItem()

        currentItemText = currentItem.text()

        currentItem.setBackground(QtGui.QColor('red'))

So, the idea is that I capture the sender item and changed its color to red after is doublecliked. But all the documentation I can find is in c++ and have not come across python examples. I am sure its prob very easy to port those examples to python, however, i am still learning and currently stumped by this. 

[Alok Gandhi]

Take a loot at the pyside docs here:
https://srinikom.github.io/pyside-docs/contents.html

You can also use `PySide.QtGui.QWidget.setStyleSheet(styleSheet)` to update the colors.

For capturing double click, another approach would be apply an even filter:

def clickable(widget):
    """Re implementation Double Click Event on a widget"""
    class MouseDoubleClickFilter(QtCore.QObject):
        doubleClicked = QtCore.pyqtSignal()

        def eventFilter(self, obj, event):
            if obj == widget:
                if event.type() == QtCore.QEvent.MouseButtonDblClick:
                    self.doubleClicked.emit()
                    return True

            return False

    filter = MouseDoubleClickFilter(widget)
    widget.installEventFilter(filter)

    return filter.doubleClicked

And then connect this signal:

# Connect the double click signal
clickable(qlistwidget).connect(handleDoubleClick)

def handleDoubleClick():
    # Implement your color update logic here
    pass

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[Justin Israel]

I've thrown together an example here:

https://gist.github.com/justinfx/5926db12d275737e5eb66c7bf7e77e93

QListWidget lets you connect to a double click signal which hands you the item that was double clicked.

From there it is trivial to toggle the color as needed.

Justin

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[Juan Tigreros]

Thanks Justin!!! This was the missing piece. :) I truly appreciate the help. 

On Tuesday, September 20, 2016 at 10:54:50 AM UTC+2, Juan Tigreros wrote: