PyQt: How to set Combobox Items be Checkable?
This idea of a multi-select combo has come up before, but I'm not sure that its the best solution. Really, all that's needed is a tool-button with a drop-down menu (similar to the history buttons in a web-browser).
Here's an update of the example that illustrates both options:
from PyQt4 import QtGui, QtCore
import sys, os
class CheckableComboBox(QtGui.QComboBox):
def __init__(self):
super(CheckableComboBox, self).__init__()
self.view().pressed.connect(self.handleItemPressed)
self.setModel(QtGui.QStandardItemModel(self))
def handleItemPressed(self, index):
item = self.model().itemFromIndex(index)
if item.checkState() == QtCore.Qt.Checked:
item.setCheckState(QtCore.Qt.Unchecked)
else:
item.setCheckState(QtCore.Qt.Checked)
class Dialog_01(QtGui.QMainWindow):
def __init__(self):
super(QtGui.QMainWindow,self).__init__()
myQWidget = QtGui.QWidget()
myBoxLayout = QtGui.QVBoxLayout()
myQWidget.setLayout(myBoxLayout)
self.setCentralWidget(myQWidget)
self.ComboBox = CheckableComboBox()
for i in range(3):
self.ComboBox.addItem("Combobox Item " + str(i))
item = self.ComboBox.model().item(i, 0)
item.setCheckState(QtCore.Qt.Unchecked)
self.toolbutton = QtGui.QToolButton(self)
self.toolbutton.setText('Select Categories ')
self.toolmenu = QtGui.QMenu(self)
for i in range(3):
action = self.toolmenu.addAction("Category " + str(i))
action.setCheckable(True)
self.toolbutton.setMenu(self.toolmenu)
self.toolbutton.setPopupMode(QtGui.QToolButton.InstantPopup)
myBoxLayout.addWidget(self.toolbutton)
myBoxLayout.addWidget(self.ComboBox)
if __name__ == '__main__':
app = QtGui.QApplication(sys.argv)
dialog_1 = Dialog_01()
dialog_1.show()
dialog_1.resize(480,320)
sys.exit(app.exec_())
It is very easy. Just set the item Checkable using the flags() function in the model associated with the comboBox.
def flags(self, index):
return Qt.ItemIsUserCheckable | Qt.ItemIsSelectable | Qt.ItemIsEnabled
UPDATE
This may not be the best method, But it should sort your problem. Here is a something u may want look at , IF you have space restrictionn and cannot display the complete listView, Just resize it until it looks like a ComboBox.