[PyQt] custom editor with setFocusProxy set on a QLineEdit child element won't close

[Victor Noagbodji]

hi,

i'm having a small issue with a a custom editor, that has a QLineEdit
child, with a setFocusProxy set. now this editor does not behave the
same way would a direct QLineEdit used as an editor.

below is a sample code that should display the behavior i'm talking
about. it's a matter of setting editor to MySpinBox1 or
MySpinBoxEditor.

i'm wondering what are the internal changes done by setFocusProxy. the
documentation doesn't say much about it.

thanks a lot in advance

import sys
from PyQt4 import QtCore, QtGui


class MyHBoxLayout(QtGui.QHBoxLayout):

  def __init__(self, parent=None):
    QtGui.QHBoxLayout.__init__(self, parent)
    self.setContentsMargins(0, 0, 0, 0)


class MySpinBox1(QtGui.QSpinBox):

  def __init__(self, parent=None):
    QtGui.QSpinBox.__init__(self, parent)
    self.setMinimum(0)
    self.setMaximum(100)


class MySpinBox2(QtGui.QSpinBox):

  def __init__(self, parent=None):
    QtGui.QSpinBox.__init__(self, parent)
    self.setMinimum(0)
    self.setMaximum(100)
    policy = (QtGui.QSizePolicy.MinimumExpanding,
              QtGui.QSizePolicy.MinimumExpanding)
    self.setSizePolicy(QtGui.QSizePolicy(*policy))


class MySpinBoxEditor(QtGui.QWidget):

  def __init__(self, parent):
    QtGui.QWidget.__init__(self, parent)
    self.spinbox = MySpinBox2()
    hbox = MyHBoxLayout()
    hbox.addWidget(self.spinbox)
    self.setLayout(hbox)
    self.setFocusProxy(self.spinbox)

  def interpretText(self):
    self.spinbox.interpretText()

  def value(self):
    return self.spinbox.value()

  def setValue(self, value):
    self.spinbox.setValue(value)


class MyDelegate(QtGui.QItemDelegate):

  def createEditor(self, parent, option, index):
    # editor can be set to MySpinBox1(parent)
    editor = MySpinBoxEditor(parent)
    editor.installEventFilter(self)
    return editor

  def setEditorData(self, editor, index):
    value, ok = index.model().data(index, QtCore.Qt.DisplayRole).toInt()
    editor.setValue(value)

  def setModelData(self, editor, model, index):
    editor.interpretText()
    value = editor.value()
    model.setData(index, QtCore.QVariant(value))

  def updateEditorGeometry(self, editor, option, index):
    editor.setGeometry(option.rect)


if __name__ == "__main__":
  app = QtGui.QApplication(sys.argv)

  model = QtGui.QStandardItemModel(4, 2)
  tableView = QtGui.QTableView()
  tableView.setModel(model)

  delegate = MyDelegate()
  tableView.setItemDelegate(delegate)

  for row in range(4):
    for column in range(2):
      index = model.index(row, column, QtCore.QModelIndex())
      model.setData(index, QtCore.QVariant((row+1) * (column+1)))

  tableView.show()
  sys.exit(app.exec_())



-- 
paul victor noagbodji