QGraphicsTextItem and paint event

[prashant]

Related To : PyQt 4.6.1
I am creating a QGraphicsTextItem by sub classing it. The code snippet is take from demo example. The item is working fine.

1. When I select the text and press delete, nothing happens, It's because in my QMainWindow there is an action with short cut:

action.setShortcut(QtGui.QKeySequence.Delete)

action.setShortcut(QtGui.QKeySequence.Delete)

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This action is getting triggered. Any pointers to solve this?

Here is the code:

class QxTextItem(QtGui.QGraphicsTextItem):
    lostFocus = QtCore.pyqtSignal(QtGui.QGraphicsTextItem)
    selectedChange = QtCore.pyqtSignal(QtGui.QGraphicsItem)
 
    def __init__(self, parent=None, text=qx.Null):
        super(QxTextItem, self).__init__(parent)
 
        self.setFlag(QtGui.QGraphicsItem.ItemIsMovable)
        self.setFlag(QtGui.QGraphicsItem.ItemIsSelectable)
        self.setHtml(text)
 
    def itemChange(self, change, value):
        if change == QtGui.QGraphicsItem.ItemSelectedChange:
            self.selectedChange.emit(self)
        return value
 
    def focusOutEvent(self, event):
        self.setTextInteractionFlags(QtCore.Qt.NoTextInteraction)
        self.lostFocus.emit(self)
        super(QxTextItem, self).focusOutEvent(event)
 
    def mouseDoubleClickEvent(self, event):
        if self.textInteractionFlags() == QtCore.Qt.NoTextInteraction:
            self.setTextInteractionFlags(QtCore.Qt.TextEditorInteraction)
        super(QxTextItem, self).mouseDoubleClickEvent(event)

class QxTextItem(QtGui.QGraphicsTextItem):
    lostFocus = QtCore.pyqtSignal(QtGui.QGraphicsTextItem)
    selectedChange = QtCore.pyqtSignal(QtGui.QGraphicsItem)

    def __init__(self, parent=None, text=qx.Null):
        super(QxTextItem, self).__init__(parent)

        self.setFlag(QtGui.QGraphicsItem.ItemIsMovable)
        self.setFlag(QtGui.QGraphicsItem.ItemIsSelectable)
        self.setHtml(text)

    def itemChange(self, change, value):
        if change == QtGui.QGraphicsItem.ItemSelectedChange:
            self.selectedChange.emit(self)
        return value

    def focusOutEvent(self, event):
        self.setTextInteractionFlags(QtCore.Qt.NoTextInteraction)
        self.lostFocus.emit(self)
        super(QxTextItem, self).focusOutEvent(event)

    def mouseDoubleClickEvent(self, event):
        if self.textInteractionFlags() == QtCore.Qt.NoTextInteraction:
            self.setTextInteractionFlags(QtCore.Qt.TextEditorInteraction)
        super(QxTextItem, self).mouseDoubleClickEvent(event)

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