[PyQt] QTabWidget resize problem

Hi everyone,

I'm trying to develop a custom QtabWidget which can auto-hide by clicking on a button placed in the widget tab. Here is a sample code:

Code:

from PyQt4.QtCore import *
from PyQt4.QtGui import *
 
class HidingTabWidget(QTabWidget):
    def __init__(self, parent):
        super(QTabWidget, self).__init__(parent)  
        self.show_tab = True
	self.max_height = 1000000
 
    def OnHideShow(self, event):
	self.show_tab = not self.show_tab
	if self.show_tab:
	    self.setFixedHeight(self.h)
	    self.setMinimumHeight(2*self.tb_h)
	    self.setMaximumHeight(self.max_height)
	else:  
	    self.h = self.height()
	    self.setFixedHeight(self.tb_h)
        print self.height()
 
    def AddTab(self, widget, label):
	self.addTab(widget, label)
	index = self.indexOf(widget)
        self.tabBar().setTabText(index, label)
	button = QPushButton(self)
        button.setMaximumSize(16,16)
	self.tabBar().setTabButton(index, QTabBar.RightSide, button)  
        button.clicked.connect(self.OnHideShow)	   
	self.tb_h = self.tabBar().height()-7
	self.setMinimumHeight(2*self.tb_h)
	self.setMaximumHeight(self.max_height)
 
 
class Panel(QWidget):
    def __init__(self, parent=None):
        QWidget.__init__(self)
 
	l = QVBoxLayout(self)
        splitter = QSplitter(self)
        splitter.setOrientation(Qt.Vertical)
        frame1 = QFrame(splitter)
	frame1.setMinimumHeight(50)
	tab_table = HidingTabWidget(splitter)
 
	l.addWidget(splitter)	
	tab_table.AddTab(QTableView(), "Table") 
 
	self.setLayout(l)
	self.resize(600,400)
 
if __name__ == "__main__" :
    import sys, os
 
    a = QApplication(sys.argv)
    dia = Panel()
    dia.show()
    a.exec_()

If you click on the tab button, the widget collapses as I expect and its size cannot be changed. If you then re-click it, the widget original size is restored. The problem arises if I try to resize the widget when it is collapsed. If you try that and then re-click the tab button, the height of the widget is set to its minimum value, even if self.height() returns the correct height value. Is there anything I am missing?

Thanks in advance for your help!