How to create combo filter for Qtables in pyqt - pyqt4

Question

I have below code snippet from the help of stackoverflow followers.
I am able to filter the table now. but when i try to filter it sorts first as i enabled sort for the view.
I want to create the QTableview such a way that if i click on header it should sort. and should have a dropdown box (may be combox box style) at the right of every header. i am uploading a snap of how i want (which i made it in .NET)
Code Snippet
#!/usr/bin/env python
#-*- coding:utf-8 -*-
from PyQt4 import QtCore, QtGui
class myWindow(QtGui.QMainWindow):
def __init__(self, parent=None):
super(myWindow, self).__init__(parent)
self.centralwidget = QtGui.QWidget(self)
self.view = QtGui.QTableView(self.centralwidget)
self.view.setSortingEnabled(True)
self.gridLayout = QtGui.QGridLayout(self.centralwidget)
self.gridLayout.addWidget(self.view, 1, 0, 1, 3)
self.setCentralWidget(self.centralwidget)
self.model = QtGui.QStandardItemModel(self)
for rowName in range(3) * 5:
self.model.invisibleRootItem().appendRow(
[ QtGui.QStandardItem("row {0} col {1}".format(rowName, column))
for column in range(3)
]
)
self.proxy = QtGui.QSortFilterProxyModel(self)
self.proxy.setSourceModel(self.model)
self.view.setModel(self.proxy)
self.horizontalHeader = self.view.horizontalHeader()
self.horizontalHeader.sectionClicked.connect(self.horizontalHeader_Clicked)
#QtCore.pyqtSlot(int)
def horizontalHeader_Clicked(self, logicalIndex):
self.logicalIndex = logicalIndex
# local variable, and no parent
menuValues = QtGui.QMenu()
# delete the previous one
try:
self.signalMapper.deleteLater()
except:
pass
self.signalMapper = QtCore.QSignalMapper(self)
valuesUnique = [
self.proxy.index(row, self.logicalIndex).data().toString()
for row in xrange(self.proxy.rowCount())
]
print 'printing col %d values' % self.logicalIndex
for row in range(self.proxy.rowCount()):
print 'row %d Item %s' % (row,self.model.item(row, self.logicalIndex).text())
actionAll = QtGui.QAction("All", self)
actionAll.triggered.connect(self.actionAll)
menuValues.addAction(actionAll)
menuValues.addSeparator()
for actionNumber, actionName in enumerate(sorted(list(set(valuesUnique)))):
action = QtGui.QAction(actionName, self)
self.signalMapper.setMapping(action, actionNumber)
action.triggered.connect(self.signalMapper.map)
menuValues.addAction(action)
self.signalMapper.mapped.connect(self.signalMapper_mapped)
headerPos = self.view.mapToGlobal(self.horizontalHeader.pos())
posY = headerPos.y() + self.horizontalHeader.height()
posX = headerPos.x() + self.horizontalHeader.sectionPosition(self.logicalIndex)
menuValues.exec_(QtCore.QPoint(posX, posY))
#QtCore.pyqtSlot()
def actionAll(self):
filterColumn = self.logicalIndex
filterString = QtCore.QRegExp( "",
QtCore.Qt.CaseInsensitive,
QtCore.QRegExp.RegExp
)
self.proxy.setFilterRegExp(filterString)
self.proxy.setFilterKeyColumn(filterColumn)
#QtCore.pyqtSlot(int)
def signalMapper_mapped(self, i):
stringAction = self.signalMapper.mapping(i).text()
filterColumn = self.logicalIndex
filterString = QtCore.QRegExp( stringAction,
QtCore.Qt.CaseSensitive,
QtCore.QRegExp.FixedString
)
self.proxy.setFilterRegExp(filterString)
self.proxy.setFilterKeyColumn(filterColumn)
if __name__ == "__main__":
import sys
app = QtGui.QApplication(sys.argv)
main = myWindow()
main.show()
main.resize(400, 600)
sys.exit(app.exec_())
This i how i am trying to get (Sort and filter)
If possible I need the ability to set the filter for selected columns only like in above image.

Answer 1

There is a discussion location here about the same topic: Quick way for QWidget in QHeaderView's columns?
They suggest that you would need to ditch the stock QHeaderView in your view, and provide your own custom widget for the header functionality, in order to place custom widgets into the header sections.