PythonList.py

# -*- coding: utf-8 -*-

import sys

from PySide import QtCore
from PySide import QtGui
from PySide import QtDeclarative
from PySide import QtOpenGL

class ThingWrapper(QtCore.QObject):
    def __init__(self, thing):
        QtCore.QObject.__init__(self)
        self._thing = thing

    def _name(self):
        return str(self._thing)

    changed = QtCore.Signal()

    name = QtCore.Property(unicode, _name, notify=changed)

class ThingListModel(QtCore.QAbstractListModel):
    COLUMNS = ['thing']

    def __init__(self, things):
        QtCore.QAbstractListModel.__init__(self)
        self._things = things
        self.setRoleNames(dict(enumerate(ThingListModel.COLUMNS)))

    def rowCount(self, parent=QtCore.QModelIndex()):
        return len(self._things)

    def data(self, index, role):
        if index.isValid() and role == ThingListModel.COLUMNS.index('thing'):
            return self._things[index.row()]
        return None

class Controller(QtCore.QObject):
    @QtCore.Slot(QtCore.QObject)
    def thingSelected(self, wrapper):
        print 'User clicked on:', wrapper._thing.name
        if wrapper._thing.number > 10:
            print 'The number is greater than ten!'

app = QtGui.QApplication(sys.argv)

m = QtGui.QMainWindow()

view = QtDeclarative.QDeclarativeView()
glw = QtOpenGL.QGLWidget()
view.setViewport(glw)
view.setResizeMode(QtDeclarative.QDeclarativeView.SizeRootObjectToView)

class Person(object):
    def __init__(self, name, number):
        self.name = name
        self.number = number

    def __str__(self):
        return 'Person "%s" (%d)' % (self.name, self.number)

people = [
        Person('Locke', 4),
        Person('Reyes', 8),
        Person('Ford', 15),
        Person('Jarrah', 16),
        Person('Shephard', 23),
        Person('Kwon', 42),
]

# Wrap persons into QObjects for property access in QML
things = [ThingWrapper(thing) for thing in people]

controller = Controller()
thingList = ThingListModel(things)

rc = view.rootContext()

rc.setContextProperty('controller', controller)
rc.setContextProperty('pythonListModel', thingList)

view.setSource('PythonList.qml')
m.setCentralWidget(view)

m.show()

app.exec_()