Hi,
First of all, I'm using Linux & PySide head from yesterday (11 Nov) &
Qt 4.7.0 & Python 2.6, so this might not help much. But your code
works nicely for me, no exceptions or crahses. Just one ReferenceError
which can be easily fixed by reordering the lines in main:
if __name__ == '__main__':
import sys
app = QtGui.QApplication(sys.argv)
view = QtDeclarative.QDeclarativeView()
dataList = []
# add lots of objects
index = 0
while index < 50:
dataList.append( DataObject("Item %d" % index) )
index += 1
ctxt = view.rootContext()
ctxt.setContextProperty('myModel', dataList)
view.setSource(QtCore.QUrl('view.qml'))
view.show()
sys.exit(app.exec_())
-Perttu
On Fri, Nov 12, 2010 at 2:29 AM, Jon Middleton
<[email protected]> wrote:
> I am getting a fatal exception when scrolling data bound lists with more
> lists items then there is visible space.
> The view is shown ok, but if you try and scroll the view up or down using
> your mouse or mouse wheel a fatal exception is raised in python.
> I am using python 2.6 on windows using a pyside build from the Head on the
> 2nd Nov, installer available here:
> http://www.syrris-support.com/Downloads/JMM/PySide-0.4.2.jmm.qt47.win32-py2.6.exe
> This includes the bug fix I required:
> (http://bugs.openbossa.org/show_bug.cgi?id=431)
>
> This example demonstrates the issue (the declarative scrolling.py does work
> with a larger dataset, but that uses strings)
> view.qml contents:
>
> import Qt 4.7
> //![0]
> ListView {
> width: 100; height: 100
> anchors.fill: parent
>
> model: myModel
> delegate: Rectangle {
> height: 25
> width: 100
> Text { text: model.modelData.name }
> }
> }
> //![0]
> objectlistmodel.py contents:
> from PySide import QtCore, QtGui, QtDeclarative
> class DataObject(QtCore.QObject):
> nameChanged = QtCore.Signal()
> colorChanged = QtCore.Signal()
> def __init__(self, name):
> super(DataObject, self).__init__()
> self._name = name
> def get_name(self):
> return self._name
> def set_name(self, name):
> if self._name != name:
> self._name = name
> self.nameChanged.emit()
> name = QtCore.Property(str, fget=get_name, fset=set_name,
> notify=nameChanged)
> if __name__ == '__main__':
> import sys
> app = QtGui.QApplication(sys.argv)
> view = QtDeclarative.QDeclarativeView()
> view.setSource(QtCore.QUrl('view.qml'))
>
> dataList = []
>
> # add lots of objects
> index = 0
> while index < 50:
> dataList.append( DataObject("Item %d" % index) )
> index += 1
>
> view.show()
>
> ctxt = view.rootContext()
> ctxt.setContextProperty('myModel', dataList)
> sys.exit(app.exec_())
>
> Has anybody else had this problem? Any tips would be great.
> Cheers,
> Jon.
>
> _______________________________________________
> PySide mailing list
> [email protected]
> http://lists.openbossa.org/listinfo/pyside
>
>
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