PyQt5 ComboBox - how do I set the color of CurrentText without affecting the dropdown list?

Question

The following snippet correctly sets the colors of individual entries in the ComboBox dropdown list. However, when an item is selected and transferred to the CurrentText field, all of the entries in the dropdown change to the color of CurrentText. How do I transfer the color of an entry to be displayed as CurrentText without affecting the dropdown list?

import sys
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
from PyQt5.QtCore import *

class ComboDemo(QWidget):

    def __init__(self):
        super().__init__()
        self.initUI()

    def initUI(self):

        def combo_changed():
            for color in ('red', 'green', 'blue'):
                if color == cb.currentText():
                    cb.setStyleSheet('color: {}'.format(color))

        grid = QGridLayout()
        cb = QComboBox()
        grid.addWidget(cb, 0, 0)
        model = cb.model()
        for color in ('red', 'green', 'blue'):
            entry = QStandardItem(color)
            entry.setForeground(QColor(color))
            model.appendRow(entry)

        cb.currentIndexChanged.connect(combo_changed)

        self.setLayout(grid)
        self.show()

app = QApplication(sys.argv)
c = ComboDemo()
app.exec_()

It doesn't do that for me when i click on a item in the combo box rest of the items color won't change to the current selected item's color. I am on Windows 8, python3.6.0, pyqt5.6.0 — U13-Forward, Jun 06 '18 at 03:27
I should have mentioned that I'm on Linux, Python 3.6.5 and PyQt5 5.10-3. Also, click on an item, close the dropdown, and re-open it. That's when all the colors change to a single color. — OregonJim, Jun 06 '18 at 03:31

score 2 · Accepted Answer · answered Jun 06 '18 at 03:33

You have to use QComboBox:editable:

import sys
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
from PyQt5.QtCore import *

class ComboDemo(QWidget):

    def __init__(self):
        super().__init__()
        self.initUI()

    def initUI(self):

        def combo_changed():
            for color in ('red', 'green', 'blue'):
                if color == cb.currentText():
                    cb.setStyleSheet("QComboBox:editable{{ color: {} }}".format(color))

        grid = QGridLayout()
        cb = QComboBox()
        grid.addWidget(cb, 0, 0)
        model = cb.model()
        for color in ('red', 'green', 'blue'):
            entry = QStandardItem(color)
            entry.setForeground(QColor(color))
            model.appendRow(entry)

        cb.currentIndexChanged.connect(combo_changed)
        self.setLayout(grid)
        self.show()

app = QApplication(sys.argv)
c = ComboDemo()
app.exec_()

That did it - thanks! I was tearing my hair out looking for a needle in a haystack! — OregonJim, Jun 06 '18 at 03:39

PyQt5 ComboBox - how do I set the color of CurrentText without affecting the dropdown list?

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