Re: [PyQt] QGridLayout doesn't remove widgets
On Wednesday 12 March 2008, Dr. Katja Wegner wrote: Hello, I have a QWidget with a QVBoxLayout and inside is a QGridLayout to show a text and a combo box in each line. If the user pushes the button change grid, the current boxes and labels shall be removed and new boxes and labels shall be added. I use removeWidget() but all elements are still visible although the layout is updated. I also added a button delete grid which shall only remove the elements. I created a small file for testing which is attached. (Python 2.5, Qt 4.3.4, PyQt 4.3.3) Thanks a lot, Katja That's the expected behavour. If you actually want to delete the widgets then call setParent(None) on them after calling removeWidget(). Phil ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
[PyQt] Multiple Inheritance
Is possible the Multiple Inheritance from qt classes with PyQt?? ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Multiple Inheritance
On Thursday 13 March 2008, Ivan Coronado wrote: Is possible the Multiple Inheritance from qt classes with PyQt?? No. Phil ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Multiple Inheritance
Am Donnerstag, 13. März 2008 schrieb Ivan Coronado: Is possible the Multiple Inheritance from qt classes with PyQt?? Yes and no, since at most one sip generated class can be involved. The question is, what's your purpose? Pete ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Multiple Inheritance
[Ivan, two things first: keep discussions on this fairly low volume list, and do not top post, if remotely possible] Am Donnerstag, 13. März 2008 schrieb Ivan Coronado: I want to create class that inherits Qmainwindow and qthread support, but now i'm thinking about create two diferent classes. Well, that sounds like a perfect recipe to beg for trouble, even in C++. If you look at the semantics of both classes, you discover plenties of reasons to keep them separated. Pete thanks -Mensaje original- De: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] En nombre de Hans-Peter Jansen Enviado el: jueves, 13 de marzo de 2008 12:40 Para: pyqt@riverbankcomputing.com Asunto: Re: [PyQt] Multiple Inheritance Am Donnerstag, 13. März 2008 schrieb Ivan Coronado: Is possible the Multiple Inheritance from qt classes with PyQt?? Yes and no, since at most one sip generated class can be involved. The question is, what's your purpose? Pete ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] PyQt book Rapid GUI Programming with Python and Qt
Done ;) I'm really glad you like it and hope it will prove to be really useful! (And if you felt like it, maybe add a nice comment on amazon:-) -- Gustavo A. Díaz GDNet Projects www.gdnet.com.ar ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
[PyQt] use c++ files from PyQt
Should be possible to create a model (QAbstractTableModel subclass) and a view (QTableView subclass) in c++ and use it from a PyQt program with sip or any other way? Regards, Miguel Angel. ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
[PyQt] QtDBus not wrapped, trouble using dbus-python (communication hangs)
Hello.
I've read in the list archives that QtDBus is not wrapped because there
would be severe limitations in the bindings, and a more pythonic version
of the bindings exists (dbus-python).
However, I'm having trouble with exporting an interface using those
bindings. I've started with the example-service.py file that comes with
dbus-python, and I've changed it to be a Qt mini-app with the following
diff (full file attached):
--- example-service.py~
+++ example-service.py
@@ -30,11 +30,13 @@
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
-import gobject
+import sys
import dbus
import dbus.service
-import dbus.mainloop.glib
+import dbus.mainloop.qt
+
+from PyQt4 import QtGui
class DemoException(dbus.DBusException):
_dbus_error_name = 'com.example.DemoException'
@@ -71,13 +73,13 @@
if __name__ == '__main__':
-dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)
+dbus.mainloop.qt.DBusQtMainLoop(set_as_default=True)
session_bus = dbus.SessionBus()
name = dbus.service.BusName(com.example.SampleService, session_bus)
object = SomeObject(session_bus, '/SomeObject')
-mainloop = gobject.MainLoop()
-print Running example service.
-print usage
-mainloop.run()
+app = QtGui.QApplication(sys.argv)
+mw = QtGui.QMainWindow()
+mw.show()
+app.exec_()
The application starts, with this warning:
QSocketNotifier: Can only be used with threads started with QThread
QSocketNotifier: Can only be used with threads started with QThread
qdbus lists the service, but trying to lists its objects hangs, and
sending a message does not work either:
% qdbus | grep example
com.example.SampleService
% qdbus com.example.SampleService
/
Cannot introspect object / at com.example.SampleService:
org.freedesktop.DBus.Error.NoReply (Did not receive a reply. Possible causes
include: the remote application did not send a reply, the message bus security
policy blocked the reply, the reply timeout expired, or the network connection
was broken.)
% qdbus com.example.SampleService /SomeObject
com.example.SampleInterface.HelloWorld hello
Interface 'com.example.SampleInterface' not available in object /SomeObject at
com.example.SampleService:
org.freedesktop.DBus.Error.NoReply (...)
Any ideas?
--
Adeodato Simó dato at net.com.org.es
Debian Developer adeodato at debian.org
People are more violently opposed to fur than leather because it's safer to
harass rich women than motorcycle gangs.
#!/usr/bin/env python
usage = Usage:
python example-service.py
python example-client.py
python example-async-client.py
python example-client.py --exit-service
# Copyright (C) 2004-2006 Red Hat Inc. http://www.redhat.com/
# Copyright (C) 2005-2007 Collabora Ltd. http://www.collabora.co.uk/
#
# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation
# files (the Software), to deal in the Software without
# restriction, including without limitation the rights to use, copy,
# modify, merge, publish, distribute, sublicense, and/or sell copies
# of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED AS IS, WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
import sys
import dbus
import dbus.service
import dbus.mainloop.qt
from PyQt4 import QtGui
class DemoException(dbus.DBusException):
_dbus_error_name = 'com.example.DemoException'
class SomeObject(dbus.service.Object):
@dbus.service.method(com.example.SampleInterface,
in_signature='s', out_signature='as')
def HelloWorld(self, hello_message):
print (str(hello_message))
return [Hello, from example-service.py, with unique name,
session_bus.get_unique_name()]
@dbus.service.method(com.example.SampleInterface,
in_signature='', out_signature='')
def RaiseException(self):
raise DemoException('The RaiseException method does what you might '
'expect')
@dbus.service.method(com.example.SampleInterface,
in_signature='', out_signature='(ss)')
def GetTuple(self):
return (Hello Tuple, from example-service.py)
@dbus.service.method(com.example.SampleInterface,
Re: [PyQt] QtDBus not wrapped, trouble using dbus-python (communication hangs)
On Thursday 13 March 2008, Adeodato Simó wrote: Hello. I've read in the list archives that QtDBus is not wrapped because there would be severe limitations in the bindings, and a more pythonic version of the bindings exists (dbus-python). However, I'm having trouble with exporting an interface using those bindings. I've started with the example-service.py file that comes with dbus-python, and I've changed it to be a Qt mini-app with the following diff (full file attached): --- example-service.py~ +++ example-service.py @@ -30,11 +30,13 @@ # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER # DEALINGS IN THE SOFTWARE. -import gobject +import sys import dbus import dbus.service -import dbus.mainloop.glib +import dbus.mainloop.qt + +from PyQt4 import QtGui class DemoException(dbus.DBusException): _dbus_error_name = 'com.example.DemoException' @@ -71,13 +73,13 @@ if __name__ == '__main__': -dbus.mainloop.glib.DBusGMainLoop(set_as_default=True) +dbus.mainloop.qt.DBusQtMainLoop(set_as_default=True) session_bus = dbus.SessionBus() name = dbus.service.BusName(com.example.SampleService, session_bus) object = SomeObject(session_bus, '/SomeObject') -mainloop = gobject.MainLoop() -print Running example service. -print usage -mainloop.run() +app = QtGui.QApplication(sys.argv) +mw = QtGui.QMainWindow() +mw.show() +app.exec_() The application starts, with this warning: QSocketNotifier: Can only be used with threads started with QThread QSocketNotifier: Can only be used with threads started with QThread qdbus lists the service, but trying to lists its objects hangs, and sending a message does not work either: % qdbus | grep example com.example.SampleService % qdbus com.example.SampleService / Cannot introspect object / at com.example.SampleService: org.freedesktop.DBus.Error.NoReply (Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.) % qdbus com.example.SampleService /SomeObject com.example.SampleInterface.HelloWorld hello Interface 'com.example.SampleInterface' not available in object /SomeObject at com.example.SampleService: org.freedesktop.DBus.Error.NoReply (...) Any ideas? You need to create the QApplication before the main loop. Phil ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] QtDBus not wrapped, trouble using dbus-python (communication hangs)
* Phil Thompson [Thu, 13 Mar 2008 22:03:08 +]: You need to create the QApplication before the main loop. Oh, changing that makes the example work, thank you. However, if I change QApplication to KApplication, I get this error: QMutex::lock: Deadlock detected in thread -1210529600 And the application hangs. Any ideas? Thanks, -- Adeodato Simó dato at net.com.org.es Debian Developer adeodato at debian.org I went to the race track once and bet on a horse that was so good that it took seven others to beat him! ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] QtDBus not wrapped, trouble using dbus-python (communication hangs)
On Thursday 13 March 2008 15:50, Adeodato Simó wrote: * Phil Thompson [Thu, 13 Mar 2008 22:03:08 +]: You need to create the QApplication before the main loop. Oh, changing that makes the example work, thank you. However, if I change QApplication to KApplication, I get this error: QMutex::lock: Deadlock detected in thread -1210529600 And the application hangs. Any ideas? Setting some of the fields in KAboutData also sets some info that DBus uses (name, domain info?) - setting it incorrectly (like putting the .py extension on the name) also causes problems. I'd also try changing QMainWindow to KMainWindow or KXmlGuiWindow. Other than that (actually including that), I have no clue. Haven't seen any KDE docs on it either, although you could try kde.org. Jim ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
