Hi,

Task:
Drag item from QTreeWidget and drop it to QGraphicsView

Here is the property set up and function to start the drag in QTreeWidget.
I am not using any more function except this one:
Qt Code: 
  1. ....
  2. #
  3. self.setDragEnabled(True)
  4. self.setHeaderHidden(True)
  5. self.setColumnCount(1)
  6. self.setFocusPolicy(QtCore.Qt.NoFocus)
  7.  
  8. def startDrag(self, supportedActions):
  9.  
  10.         print self.currentItem().text(0)
  11.         currentItemName = self.currentItem().text(0)
  12.  
  13.         mimeData = QtCore.QMimeData()
  14.         mimeData.setText(currentItemName)
  15.  
  16.         drag = QtGui.QDrag(self)
  17.         drag.setMimeData(mimeData)
  18.  
  19.         dropAction = drag.start(QtCore.Qt.CopyAction)
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Here is the property set up and function for dropping in QGraphicsView.
I am using only two functions here:
Qt Code: 
  1. ....
  2. self.setScene(QxScene(self))
  3. self.setCacheMode(QtGui.QGraphicsView.CacheBackground)
  4. self.setRenderHint(QtGui.QPainter.Antialiasing, 1)
  5. self.setDragMode(QtGui.QGraphicsView.RubberBandDrag)
  6. self.setOptimizationFlags(QtGui.QGraphicsView.DontSavePainterState)
  7. self.setViewportUpdateMode(QtGui.QGraphicsView.SmartViewportUpdate)
  8. self.setBackgroundBrush(QtCore.Qt.lightGray)
  9. self.setAcceptDrops(True)
  10.  
  11.     def dragEnterEvent(self, event):
  12.         if event.mimeData().hasText():
  13.             event.acceptProposedAction()
  14.             print "enter accepted"
  15.         else:
  16.             print "enter ignore"
  17.             event.ignore()        
  18.  
  19.     def dropEvent(self, event):
  20.         if event.mimeData().hasText():
  21.             xmlFileName = event.mimeData().text()
  22.             position = event.pos()
  23.             event.setDropAction(QtCore.Qt.CopyAction)
  24.             event.accept()
  25.             print xmlFileName, position
  26.         else:
  27.             print "drop ignore"
  28.             event.ignore()
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As soon as mouse is entering in QGraphicsView, message "event accepted" is getting printed in function "dragEnterEvent".

Problem is that cursor is still forbidden cursor and I can't drop.


Cheers

Prashant

Python 2.5.2
PyQt-Py2.5-gpl-4.4.3-1
Win XP, 32 Bit