working with the QTabWidget class, placing tabs

Question

working with the QTabWidget class, placing tabs

There is a panel with tabs (there are only three), how to make tab number 3 on top like here:

I would be very grateful

Code:

from PyQt5 import QtCore, QtWidgets
import sys

app = QtWidgets.QApplication(sys.argv)
window = QtWidgets.QWidget()
window.setWindowTitle("Класс QTabWidget")
window.resize(400, 150)
tab = QtWidgets.QTabWidget()
tab.addTab(QtWidgets.QLabel("Содержимое вкладки 1"),
           "Вкладка 1")
tab.addTab(QtWidgets.QLabel("Содержимое вкладки 2"),
           "Вкладка 2")
tab.addTab(QtWidgets.QLabel("Содержимое вкладки 3"),
           "Вкладка 3")
tab.setElideMode(QtCore.Qt.ElideLeft)
tab.setCurrentIndex(0)
vbox = QtWidgets.QVBoxLayout()
vbox.addWidget(tab)
window.setLayout(vbox)
window.show()
sys.exit(app.exec_())

0

python-3.x pyqt

Author: Aleksandr Silkin, 2020-07-04

Source

1 answers

score 0 · Accepted Answer

As an option:

from PyQt5.Qt import *


class TabBar(QTabBar):
    def tabSizeHint(self, index):
        size = QTabBar.tabSizeHint(self, index)
        w = int(self.width()/self.count())
        return QSize(w, size.height())


class MainWindow(QMainWindow):
    def __init__(self, parent=None):
        super(MainWindow, self).__init__(parent)
        self.tabwidget = QTabWidget()
        self.tabwidget.setTabBar(TabBar())
        self.tabwidget.setMovable(True)
        self.tabwidget.setDocumentMode(True)
        self.tabwidget.setElideMode(Qt.ElideRight)
        self.tabwidget.setUsesScrollButtons(True)
        self.setCentralWidget(self.tabwidget)
        for name in ("Имя компьютера", "Оборудование"):
            self.create_widgets(name)

    def create_widgets(self, name):
        w = QMainWindow()
        self.tabwidget.addTab(w, name)
        tab = QTabWidget()
        tab.setTabBar(TabBar())  
        tab.setMovable(True)
        tab.setDocumentMode(True)
        tab.setElideMode(Qt.ElideRight)
        tab.setUsesScrollButtons(True)
        w.setCentralWidget(tab)
        for i in ["Дополнительно", "Защита системы", "Удаленный доступ"]:      # range(5):
            tab.addTab(QWidget(), "{}".format(i))


if __name__ == '__main__':
    import sys
    app = QApplication(sys.argv)
    app.setFont(QFont("Times", 12, QFont.Bold))
    w = MainWindow()
    w.resize(700, 200)
    w.show()
    sys.exit(app.exec_())