pyQt drag and drop between two TreeWidgets?

I'm a newbie to QT but have hacked my way thru a lot of different stuff in the past, and this is no exception, but I'm hitting a wall..

firstly I'm working with pyQT so hopefully someone can help me in that aspect as well..

I have a form I want to create with 1 or 2 QTreeWidgets and I want to be able to drag and drop between them.

currently I have a test file with one treewidget that works fine for normal clicking (and in qtDesigner where I built it, the preview of drag and drop actually works) but as soon as I try to drag, it immediately hard crashes with no signal.

I'm assuming I have to subclass the Treewidget to add some drag and drop functionality, but I haven't been able to find any simple examples of that in pyQT..

any pointers, tutorials or help would be greatly appreciated

thanks
john c

Ok so I hacked around, and I got something working but its just that.. a hack.. can anybody give me some more tips on how to make this not use a bad hack?

thanks in advance

-john

Code:

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#!/usr/local/bin/python
 
# dragdrop.py
 
import sys
from PyQt4 import QtGui,QtCore
 
class treeWidgetClass(QtGui.QTreeWidget):
 
	def mimeTypes(self):
		types = QtCore.QStringList()
		types.append("text/plain")
		return types
 
	def fmimeData(text):
		customMimeData = QtCore.QMimeData()
		customText = QtCore.QString()
		customMimeData.setText(customText)
		return customMimeData
 
	def mousePressEvent(self, event):
 
		#list = QtCore.QStringList()
		#list = self.mimeTypes()
		#for a in list:
		#	print a
 
		button = event.button()
		item = self.itemAt(event.x(), event.y())
 
		if item:
			seqBrowserMimeData = self.fmimeData()
			seqBrowserMimeData.setText(item.text(0))
			print item.text(0)
			# select the item we clicked
			self.setCurrentItem(item)
			if button == 1:
				print 'LEFT CLICK - DRAG'
			if button == 2:
				print 'RIGHT CLICK'
		else:
			print "select something you goober"
			pass
 
	def dragEnterEvent(self, event):
		if event.mimeData().hasFormat('text/plain'):
			event.accept()
 
	def dropEvent(self, event):
 
		list = QtCore.QStringList()
		list = self.mimeTypes()
 
		##### THIS IS A COMPLETE HACK but for now  25 characters is what I need to strip off to make the  string proper?  
		### its  putting in a data structure array somehow still 
 
		text = event.mimeData().text()
		text = text[25:]
		#print "dropped"
		print (text)
		#print "here"
 
 
class DragDrop(QtGui.QDialog):
	def __init__(self, parent=None):
		QtGui.QDialog.__init__(self, parent)
 
		self.resize(280, 150)
		self.setWindowTitle('Simple Drag & Drop')
 
		treeWidget = treeWidgetClass(self)
		treeWidget.setDragEnabled(True)
		treeWidget.setAcceptDrops(True)
		treeWidget.move(30, 65)
 
		treeWidget2 = treeWidgetClass(self)
		treeWidget2.setDragEnabled(True)	
		treeWidget2.setAcceptDrops(True)
		treeWidget2.move(300, 65)
 
 
		#button = Button("Button", self)
		#button.move(170, 65)
		item = QtGui.QTreeWidgetItem(treeWidget)
		item.setText(0,QtGui.QApplication.translate("", "jhgjhgljhgk hjgjhgjk jhgjhguyuy jhjhg jhgjhgjhg  jhgjhgk  ", None, QtGui.QApplication.UnicodeUTF8))
		item2 = QtGui.QTreeWidgetItem(treeWidget)
		item2.setText(0,QtGui.QApplication.translate("", "jhjhg jhgjhgjhg  jhgjhgk  ", None, QtGui.QApplication.UnicodeUTF8))
 
 
		screen = QtGui.QDesktopWidget().screenGeometry()
		size =  self.geometry()
		self.move((screen.width()-size.width())/2,(screen.height()-size.height())/2)
 
app = QtGui.QApplication(sys.argv)
icon = DragDrop()
icon.show()
app.exec_()

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