qt listview problems

[kasperc]

Hey,
I'm trying to do same pretty easy application for meamo 5 using QT (right now in PythonQT). I came to strange bugs in 4.5.3 version so I've upgraded to 4.6.2. Old errors disappeared however new one appeared.
Maybe someone can provide some help or suggestion how to move forward.

Here is complete story:

with such libs:

[sbox-FREMANTLE_X86: ~] > dpkg -l python2.5-qt4* | grep ii
ii  python2.5-qt4-common      4.7-maemo7     Shared files for PyQt4
ii  python2.5-qt4-core        4.7-maemo7     Python bindings for Qt4 Core components.
ii  python2.5-qt4-dbus        4.7-maemo7     Python bindings for Qt dbus mainloop.
ii  python2.5-qt4-gui         4.7-maemo7     Python bindings for Qt4 Core components.
[sbox-FREMANTLE_X86: ~] > dpkg -l libqt* | grep ii
ii  libqt4-core        4.5.3~git20090723-0maemo6+0m5 Qt 4 core module
ii  libqt4-gui         4.5.3~git20090723-0maemo6+0m5 Qt 4 GUI module

Attached code looks like this:


As you can see there is something wrong with checkboxes

So I've updated to newest version of qt and pyton-qt

Now I've following libs:

[sbox-FREMANTLE_X86: ~] > dpkg -l python2.5-qt4* | grep ii
ii  python2.5-qt4-common      4.7.3-maemo2   Shared files for PyQt4
ii  python2.5-qt4-core        4.7.3-maemo2   Python bindings for Qt4 Core components.
ii  python2.5-qt4-dbus        4.7.3-maemo2   Python bindings for Qt dbus mainloop.
ii  python2.5-qt4-gui         4.7.3-maemo2   Python bindings for Qt4 Core components.
[sbox-FREMANTLE_X86: ~] > dpkg -l libqt* | grep ii
ii  libqt4-core        4.6.2~git20100310-0maemo1+0m5 Qt 4 core module
ii  libqt4-gui         4.6.2~git20100310-0maemo1+0m5 Qt 4 GUI module

And application (at least checkbox) looks much better:


However the same code that was previously working, with new libs doesn't. Once editor has been open - its widgets doesn't work (looks like they doesn't get events or maybe there is some problem with position translation).

I've no idea what I'm doing wrong and why code that was working now doesn't.

Thanks
Kasper

PS. Screenshots are taken from scratchbox but on real device it looks exactly the same
_________________________ test_case.py ________________

import sys
from PyQt4 import QtCore, QtGui
from PyQt4.QtCore import *
from PyQt4.QtGui import *


class MyForm(QtGui.QWidget):
    def __init__(self, parent=None):
        QtGui.QWidget.__init__(self, parent)
                
        list_data = ["item1","item2","item3","item4","item5"]
        
        lm = MyListModel(list_data,self)
        self.lv = QListView()
        self.lv.setModel(lm)
         #   print i

        self.mdelegate=MyDelegate(self.lv)
        self.lv.setItemDelegate(self.mdelegate)

        # layout
        layout = QVBoxLayout()
        layout.addWidget(self.lv) 
        self.setLayout(layout)
  
        
class MyListModel(QAbstractListModel): 
    def __init__(self, datain, parent=None, *args): 
        QAbstractListModel.__init__(self, parent, *args) 
        self.listdata = datain
 
    def rowCount(self, parent=QModelIndex()): 
        return len(self.listdata) 
 
    def data(self, index, role): 
        if role==Qt.CheckStateRole:
                return Qt.Checked        
        if index.isValid() and role == Qt.DisplayRole:
            return QVariant(self.listdata[index.row()])
        else: 
            return QVariant()
       
    def flags(self, index):
        return QtCore.Qt.ItemIsEnabled | QtCore.Qt.ItemIsDragEnabled |QtCore.Qt.ItemIsSelectable | QtCore.Qt.ItemIsUserCheckable | Qt.ItemIsEditable
        
       
class MyDelegate(QStyledItemDelegate):
    def __init__(self, parent):
        QStyledItemDelegate.__init__(self, parent)
        self.editorState=False
          
    def createEditor(self, parent, option, index):
        editor=MyEditor(parent)
        return editor
        
    def sizeHint (self, option, index):
        return QStyledItemDelegate.sizeHint(self, option, index)+QSize(0, 0)

    def setEditorData( self, editor, index ):
        pass
      
    def updateEditorGeometry( self, editor, option, index ):
        editor.setGeometry(option.rect)
                        
class MyEditor(QtGui.QWidget):
    def __init__(self, parent):
        QtGui.QWidget.__init__(self, parent)
        
        self.button = QtGui.QPushButton("Press me")
        layout = QVBoxLayout(parent)
        layout.addWidget(self.button) 
        self.setLayout(layout)
              
        QtCore.QObject.connect(self.button, QtCore.SIGNAL("clicked()"), self.echo)

    def setValue(self, value):
        pass
    
    def echo(self):
        print "has been clicked"
    
if __name__ == "__main__":
    app = QtGui.QApplication(sys.argv)
    myapp = MyForm()
    myapp.show()
    sys.exit(app.exec_())

[divanov]

Could you explain in more details what exactly is not working?

[kasperc]

Thanks for reply.

Did you try to hit button ?
for me it doesn't work - perhaps I'm doing something in wrong way, however with previous version of qt lib I was able to get simple text on output "has been clicked" once button has been clicked.
Maybe you want to connect signal clicked() with something else ... more visual
There is also something else that may confirm that it is a bug not my fault - with newest version of qt please remove that line:
self.lv.setItemDelegate(self.mdelegate)

You will get a "fresh" QListView - now try to turn one of rows into editor state (it will be empty), try to write something and then try to mark with mouse a part of text. For me that failed. I've done a test and I've returned to 4.5.3. Now editing works fine.