[PyQt] setapi and itemChange , setParentItem related bug.

[Ryan Kim]

Hi. 

When I set  sip.setapi('QVariant', 2)  and reimplement itemChange function
of

QGraphicsItem, setParentItem doesn't work. 

I read this issue has been dealt with on this mailing list, but I guess It's
still there.

Simple code to reproduce this behavior.
----------------------------------------------------------------------
import sip
sip.setapi('QVariant', 2)

from PyQt4 import QtCore
from PyQt4 import QtGui
import sys
class TestItem(QtGui.QGraphicsRectItem):
    def __init__(self,x,y,width,height,parent=None):
        super(TestItem, self).__init__(x,y,width,height,parent)
    def itemChange(self,change,value):
        return super(TestItem,self).itemChange(change,value)
if __name__ == '__main__':
    app = QtGui.QApplication(sys.argv)
    view = QtGui.QGraphicsView()
    scene = QtGui.QGraphicsScene(0,0,1024,1024)
    view.setScene(scene)
    rect1 = TestItem(0,0,100,100)
    rect2 = TestItem(100,100,50,50)
    rect1.setFlag(QtGui.QGraphicsItem.ItemIsMovable,True)
    rect2.setFlag(QtGui.QGraphicsItem.ItemIsMovable,True)
    rect2.setParentItem(rect1)
    scene.addItem(rect1)
    scene.addItem(rect2)
    view.show()
    sys.exit(app.exec_())
----------------------------------------------------------------------
Big rectangle is parent of small rectangle.

But If you move big rectangle, child doesn't move along with it's parent.

if u comment out sip.setapi('QVariant', 2), it just works. 

Appreciate any kind of help.

Ryan



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