Hello,

I want my QTableView to have a column of comboBoxes. After a lot of try-outs, I've reached my goal : display the comboBoxes.

Now my problem is that they won't keep the selected item displayed.

I use a custom delegate to do it, below is the relevant code :

Qt Code: 
  1. class ComboBoxDelegate(QtGui.QItemDelegate):
  2.  
  3. 	def __init__(self, owner, itemslist):
  4. 		QtGui.QItemDelegate.__init__(self, owner)
  5. 		self.itemslist = itemslist
  6.  
  7. 	def paint(self, painter, option, index):		
  8. 		# Get Item Data
  9. 		value = index.data(QtCore.Qt.DisplayRole).toInt()[0]
  10. 		# fill style options with item data
  11. 		style = QtGui.QApplication.style()
  12. 		opt = QtGui.QStyleOptionComboBox()
  13. 		opt.currentText = str(self.itemslist[value])
  14. 		opt.rect = option.rect
  15.  
  16. 		# draw item data as ComboBox
  17. 		style.drawComplexControl(QtGui.QStyle.CC_ComboBox, opt, painter)
  18.  
  19. 	def createEditor(self, parent, option, index):
  20. 		# create the ProgressBar as our editor.
  21. 		editor = QtGui.QComboBox(parent)
  22. 		editor.addItems(self.itemslist)
  23. 		editor.setCurrentIndex(0)
  24. 		editor.installEventFilter(self)			
  25. 		return editor
  26.  
  27. 	def setEditorData(self, editor, index):
  28. 		value = index.data(QtCore.Qt.DisplayRole).toInt()[0]
  29. 		editor.setCurrentIndex(value)
  30.  
  31. 	def setModelData(self,editor,model,index):
  32. 		value = editor.currentIndex()
  33. 		model.setData(index, QtCore.QVariant(value))
  34.  
  35. 	def updateEditorGeometry(self, editor, option, index):
  36. 		editor.setGeometry(option.rect)
  37.  
  38.  
  39.  
  40.     class SequenceGridModel(QtCore.QAbstractTableModel):
  41.     def __init__(self, datain, headerdata, parent=None, *args):
  42.         QtCore.QAbstractTableModel.__init__(self, parent, *args)
  43.         self.parent = parent
  44.         self.arraydata = datain
  45.         self.headerdata = headerdata
  46.  
  47.     def flags(self, index):
  48.         if index.column() == 13:
  49.             return QtCore.Qt.ItemIsEnabled | QtCore.Qt.ItemIsSelectable | QtCore.Qt.ItemIsEditable
  50.         return QtCore.QAbstractTableModel.flags(self, index)
  51.  
  52.  
  53.     def data(self, index, role = QtCore.Qt.DisplayRole):
  54.       if not index.isValid():
  55.          if role == QtCore.Qt.UserRole:
  56.             return None
  57.          else:
  58.             return QtCore.QVariant()
  59.  
  60.       value = QtCore.QVariant(self.arraydata[index.row()][index.column()])
  61.  
  62.       if QtCore.Qt.UserRole == role:
  63.          return value
  64.       elif role == QtCore.Qt.DisplayRole or role == QtCore.Qt.EditRole:
  65.          return QtCore.QVariant(value)
  66.       return QtCore.QVariant()
  67.  
  68.  
  69.  
  70.     class SequenceGrid(QtGui.QTableView):
  71.     def __init__(self, parent=None):
  72.         QtGui.QTableView.__init__(self, parent) 
  73.  
  74.         self.selectedIndexes = []
  75.         self.parent = parent
  76.  
  77.         self.checkValues = ['TODO', 'WAITING', 'RETAKE', 'OK']
  78.  
  79.         self.model = SequenceGridModel(self.data, header, self)
  80.         self.setModel(self.model)
  81.         self.setEditTriggers(QtGui.QAbstractItemView.CurrentChanged)
  82.         self.viewport().installEventFilter(self)
  83.         self.setItemDelegateForColumn(13,ComboBoxDelegate(self, self.checkValues))
  84.  
  85.         self.setColumnWidth(13, 64)
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Thanks for your attention !