How to change text alignment in QTabWidget?

Question

I cannot find a way to set the text alignment in a QTabWidget.

After I\'ve created an instance of this widget, I\'ve set its tabPosition property to West,

Answer 1

To get you started, you need to create a custom class that is a subclass of QtGui/QTabWidget and redefine the painting method:

class HorizontalTabWidget(QtGui.QTabWidget):
   def paintEvent(self, event):
      QPainter p;
      p.begin(this);
      # your drawing code goes here
      p.end();

Here's the documentation for QWidget.paintEvent method that you are reimplementing.

Of course you need to know how painting works in general, please refer to the documentation for QPainter.

Unfortunately I don't have a PyQt installation handy at the moment, so I can't give you a more specific solution.

Answer 2

I've put a worked example together on GitHub that solves this here: https://gist.github.com/LegoStormtroopr/5075267

The code is copied across as well:

Minimal example.py:

from PyQt4 import QtGui, QtCore
from FingerTabs import FingerTabWidget

import sys

app = QtGui.QApplication(sys.argv)
tabs = QtGui.QTabWidget()
tabs.setTabBar(FingerTabWidget(width=100,height=25))
digits = ['Thumb','Pointer','Rude','Ring','Pinky']
for i,d in enumerate(digits):
    widget =  QtGui.QLabel("Area #%s <br> %s Finger"% (i,d))
    tabs.addTab(widget, d)
tabs.setTabPosition(QtGui.QTabWidget.West)
tabs.show()
sys.exit(app.exec_())

FingerTabs.py:

from PyQt4 import QtGui, QtCore

class FingerTabWidget(QtGui.QTabBar):
    def __init__(self, *args, **kwargs):
        self.tabSize = QtCore.QSize(kwargs.pop('width'), kwargs.pop('height'))
        super(FingerTabWidget, self).__init__(*args, **kwargs)

    def paintEvent(self, event):
        painter = QtGui.QStylePainter(self)
        option = QtGui.QStyleOptionTab()

        for index in range(self.count()):
            self.initStyleOption(option, index)
            tabRect = self.tabRect(index)
            tabRect.moveLeft(10)
            painter.drawControl(QtGui.QStyle.CE_TabBarTabShape, option)
            painter.drawText(tabRect, QtCore.Qt.AlignVCenter |\
                             QtCore.Qt.TextDontClip, \
                             self.tabText(index));

    def tabSizeHint(self,index):
        return self.tabSize