Re: [PyQt] PyQt bug with Qt 4.8.0?
Il 31/12/2011 16:01, Linos ha scritto: has anyone tried this? for me the cpp example is identical to the python one (qt 4.7.4, pyqt 4.8.5, ubuntu oneiric packages) Nicola El 28/12/11 18:16, Linos escribió: Hi, after Qt upgrade to 4.8.0 in my machine i have been getting problems with the painting of vertical headers in QTableViews with a QSqlQueryModel that refresh on event (for example after tab change). I have created a testcase because i wanted to report the bug to Qt bug tracker but i can't reproduce it in c++ so i have created a testcase in python with the problem and the equivalent code in c++ that not reproduces the problem, maybe i am missing something but it seems like a but in PyQt? I am using now PyQt 4.9 but i had this problem with the previous PyQt version as well, i am using arch x86_64 and python2.7 Regards, Miguel Angel. ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt ___ 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 bug with Qt 4.8.0?
Il 02/01/2012 13:03, Linos ha scritto: thanks for test it. have you tried scrolling the table? i get strange visual problems with the vertical header when i scroll the table. yes I tryed and no strange visual effect here with both c++ and python version, both seems good, Nicola Regards, Miguel Angel. El 02/01/12 10:44, Mailing List SVR escribió: Il 31/12/2011 16:01, Linos ha scritto: has anyone tried this? for me the cpp example is identical to the python one (qt 4.7.4, pyqt 4.8.5, ubuntu oneiric packages) Nicola El 28/12/11 18:16, Linos escribió: Hi, after Qt upgrade to 4.8.0 in my machine i have been getting problems with the painting of vertical headers in QTableViews with a QSqlQueryModel that refresh on event (for example after tab change). I have created a testcase because i wanted to report the bug to Qt bug tracker but i can't reproduce it in c++ so i have created a testcase in python with the problem and the equivalent code in c++ that not reproduces the problem, maybe i am missing something but it seems like a but in PyQt? I am using now PyQt 4.9 but i had this problem with the previous PyQt version as well, i am using arch x86_64 and python2.7 Regards, Miguel Angel. ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt ___ 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] Professional IDE
Il 07/09/2011 15:20, ad...@mbnoimi.net ha scritto: On 07/09/2011 03:18 م, 机械唯物主义 : linjunhalida wrote: I use emacs... you can try wing ide:http://wingware.com/ Actually I found eclipse better than wing but both of them don't have PyQt integration just like eric. The only missing thing in eric is good auto completion just like wing or eclipse. you can use pydev to make eclipse a python IDE too: http://pydev.org/ Nicola PS Project management auto completion are perfect in eclipse. -- Best Regards Muhammad Bashir Al-Noimi My Blog:http://mbnoimi.net ___ 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] Debugging in windows
Il giorno dom, 15/05/2011 alle 00.22 -0400, Luke Campagnola ha scritto: Howdy, I have just compiled PyQt 4.8.4 in WinXP using MinGW from the Qt SDK. I configured both sip and PyQt with --debug turned on (but had to modify the makefiles to link against python26 instead of python26_d). My problem right now is that these did not produce importable modules (for instance, I have QtCore_d.pyd installed instead of QtCore.pyd). If I recompile without the debug flag, everything works fine (but I get no debugging symbols via GDB). Am I missing something obvious here? Are there perhaps any hand-holding documents describing how to get debuggable pyqt on windows? I guess such document would be really useful for most people ... I'm unable to debug pyqt app on windows too Luke ___ 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] QMainWindow bug?
Hi Erik,
attacched is a small sample of what I'm doing in my app, I have a dialog
that require some time to open, to speed up the things I store it in a
global object and use this global object to reopen the dialog,
this seems to work, I'm reusing the same dialog from different central
widget, some times (I'm unable to reproduce) I see in the logs:
RuntimeError: underlying C/C++ object has been deleted
so I added a try except when I open the dialog, until today noone
reported segfault, what do you think about this usage?
thanks
Nicola
Il giorno ven, 21/01/2011 alle 08.47 +0100, Erik Janssens ha scritto:
Hi,
I wrote some general documentation around these
issues, with regard to Camelot development, but
it might be of use to others as well :
http://downloads.conceptive.be/downloads/camelot/doc/sphinx/build/advanced/development.html
all remarks/corrections are welcome.
Regards,
Erik
On Thu, 2011-01-20 at 10:22 +0100, Mailing List SVR wrote:
Ok, in a my pyqt app (I'm still using pyqt-4.7.x), I have a dialog that
require much time to open so I keep a reference to it in a app global
variable and I use this reference to reopen the dialog after the first
time. This seems to work and the dialog open much quicker, however in
some undeterminated cases I get:
RuntimeError: underlying C/C++ object has been deleted
when I get this error I recreate the dialog and update the global
reference,
can you please explain the right way to keep a reference in python to a
qt object?
thanks
NIcola
Il giorno mer, 19/01/2011 alle 23.47 +0100, Erik Janssens ha scritto:
there was a change in sip/pyqt from 4.8.1 to 4.8.2 regarding
the detection of objects deleted by qt but still referenced in
python (which is the case here). in 4.8.1 sip/pyqt tried to
detect this to avoid segfaults. this detection however brought
other issues with it, therefor the detection was turned off again
in 4.8.2
the solution is not to keep references in python of objects
owned by qt when they might get deleted.
On Wed, Jan 19, 2011 at 12:36 PM, Mailing List SVR
li...@svrinformatica.it wrote:
I can confirm the segfault:
- linux, kernel 2.6.36
- python 2.7.1
- pyqt 4.8.2
- qt 4.7.1
works fine with PySide,
Nicola
Il giorno mer, 19/01/2011 alle 08.36 +0100, Vicent Mas ha scritto:
2011/1/18 Nick Gaens m...@nickgaens.com:
- Win7 64bit
- Python 2.6.6 (r266:84297, Aug 24 2010, 18:46:32) [MSC v.1500 32 bit
(Intel)] on win32
- Qt v4.7.0
- PyQt GPL v4.8.1 for Python v2.6
Result: no crashes, works like a charm..
Hi,
I get the crash also on Windows Vista 32bit (again Python 2.6 and PyQt
4.8.2)
Vicent
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#!/usr/bin/python
# -*- coding: utf-8 -*-
import sys
from PyQt4 import QtGui, QtCore
class AppGlobal(object):
global_dlg=None
app_global=AppGlobal()
class TestDialog(QtGui.QDialog):
def __init__(self,parent=None):
super(TestDialog,self).__init__(parent)
self.setWindowTitle('Reference Dialog')
self.setGeometry(200, 200, 150, 120)
self.test_button = QtGui.QPushButton('Close dialog', self)
self.connect(self.test_button, QtCore.SIGNAL('clicked()'),self.accept)
def onClose(self):
print self.parent()
if app_global.global_dlg is None:
print 'keep a dialoog reference in app_global'
app_global.global_dlg=self
self.setParent(None)
def accept(self):
self.onClose()
QtGui.QDialog.accept(self)
def reject(self):
self.onClose()
QtGui.QDialog.reject(self)
class TestWidget(QtGui.QWidget):
def __init__(self, parent=None):
QtGui.QWidget.__init__(self, parent)
self.setGeometry(300, 300, 250, 150)
self.test_button = QtGui.QPushButton('Open dialog', self)
self.test_button.setGeometry(10, 10, 200, 35)
self.test_button1 = QtGui.QPushButton('Change widget', self)
self.test_button1.setGeometry(10, 60, 200, 35)
self.connect(self.test_button, QtCore.SIGNAL('clicked()'),self.onClick)
self.connect(self.test_button1, QtCore.SIGNAL('clicked()'),self.onClick1)
def onClick(self):
if not app_global.global_dlg:
print 'new dialog created'
dlg=TestDialog(self)
dlg.exec_()
else:
try:
print open saved dialog
#app_global.global_dlg.setParent(self)
app_global.global_dlg.exec_()
except Exception,e:
print e
app_global.global_dlg=None
dlg=TestDialog(self)
dlg.exec_()
def onClick1(self):
#print 'change widget from TestWidget'
self.parent().setCentralWidget(AnotherWidget())
class AnotherWidget(QtGui.QWidget):
def
Re: [PyQt] QMainWindow bug?
Il giorno ven, 21/01/2011 alle 22.01 +0100, Erik Janssens ha scritto: Hello Nicola, I'm not sure what happens when you reset the parent of a widget to None, (wether it then transfers ownership back to python). it works If you get that run-time error, this means that qt deleted the widget, this random effect might have been triggered by the garbage collector. I cannot reproduce the error systematically it never happened during my tests, a customer reported to me this error, I added the try except statment and noone reported any problem you can verify this by disabling the garbage collector and see if it still happens : import gc gc.disable() I'm don't know if this trick with reparenting works, but it looks like a good trick to have speedups ?? attacched is an updated sample with a time.sleep in __init__, so when the dialog is loaded from the cache the difference is noticeable. if I understand your article (http://downloads.conceptive.be/downloads/camelot/doc/sphinx/build/advanced/development.html) my sample should not work, I'm setting the parent of a qt object to None, so qt should delete it, and I'm keeping a reference to the python object (this seems the opposite of what you suggets). Please play with the sample, for example you can: - click on Open dialog, the first time you'll wait about 5 seconds - when you close the dialog it's parent is setted to None, and the global object is populated - click Change widget, and click Open dialog again (from a different widget), this time the dialog is loaded from the cache - you can repeat the sequence, or try any other order this works, but probably it should not work ... Nicola Erik On Fri, Jan 21, 2011 at 10:21 AM, Mailing List SVR li...@svrinformatica.it wrote: Hi Erik, attacched is a small sample of what I'm doing in my app, I have a dialog that require some time to open, to speed up the things I store it in a global object and use this global object to reopen the dialog, this seems to work, I'm reusing the same dialog from different central widget, some times (I'm unable to reproduce) I see in the logs: RuntimeError: underlying C/C++ object has been deleted so I added a try except when I open the dialog, until today noone reported segfault, what do you think about this usage? thanks Nicola Il giorno ven, 21/01/2011 alle 08.47 +0100, Erik Janssens ha scritto: Hi, I wrote some general documentation around these issues, with regard to Camelot development, but it might be of use to others as well : http://downloads.conceptive.be/downloads/camelot/doc/sphinx/build/advanced/development.html all remarks/corrections are welcome. Regards, Erik On Thu, 2011-01-20 at 10:22 +0100, Mailing List SVR wrote: Ok, in a my pyqt app (I'm still using pyqt-4.7.x), I have a dialog that require much time to open so I keep a reference to it in a app global variable and I use this reference to reopen the dialog after the first time. This seems to work and the dialog open much quicker, however in some undeterminated cases I get: RuntimeError: underlying C/C++ object has been deleted when I get this error I recreate the dialog and update the global reference, can you please explain the right way to keep a reference in python to a qt object? thanks NIcola Il giorno mer, 19/01/2011 alle 23.47 +0100, Erik Janssens ha scritto: there was a change in sip/pyqt from 4.8.1 to 4.8.2 regarding the detection of objects deleted by qt but still referenced in python (which is the case here). in 4.8.1 sip/pyqt tried to detect this to avoid segfaults. this detection however brought other issues with it, therefor the detection was turned off again in 4.8.2 the solution is not to keep references in python of objects owned by qt when they might get deleted. On Wed, Jan 19, 2011 at 12:36 PM, Mailing List SVR li...@svrinformatica.it wrote: I can confirm the segfault: - linux, kernel 2.6.36 - python 2.7.1 - pyqt 4.8.2 - qt 4.7.1 works fine with PySide, Nicola Il giorno mer, 19/01/2011 alle 08.36 +0100, Vicent Mas ha scritto: 2011/1/18 Nick Gaens m...@nickgaens.com: - Win7 64bit - Python 2.6.6 (r266:84297, Aug 24 2010, 18:46:32) [MSC v.1500 32 bit (Intel)] on win32 - Qt v4.7.0 - PyQt GPL v4.8.1 for Python v2.6 Result: no crashes, works like a charm.. Hi, I get the crash also on Windows Vista 32bit (again Python 2.6 and PyQt 4.8.2) Vicent ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt ___ PyQt mailing listPyQt@riverbankcomputing.com http
Re: [PyQt] QMainWindow bug?
Ok, in a my pyqt app (I'm still using pyqt-4.7.x), I have a dialog that require much time to open so I keep a reference to it in a app global variable and I use this reference to reopen the dialog after the first time. This seems to work and the dialog open much quicker, however in some undeterminated cases I get: RuntimeError: underlying C/C++ object has been deleted when I get this error I recreate the dialog and update the global reference, can you please explain the right way to keep a reference in python to a qt object? thanks NIcola Il giorno mer, 19/01/2011 alle 23.47 +0100, Erik Janssens ha scritto: there was a change in sip/pyqt from 4.8.1 to 4.8.2 regarding the detection of objects deleted by qt but still referenced in python (which is the case here). in 4.8.1 sip/pyqt tried to detect this to avoid segfaults. this detection however brought other issues with it, therefor the detection was turned off again in 4.8.2 the solution is not to keep references in python of objects owned by qt when they might get deleted. On Wed, Jan 19, 2011 at 12:36 PM, Mailing List SVR li...@svrinformatica.it wrote: I can confirm the segfault: - linux, kernel 2.6.36 - python 2.7.1 - pyqt 4.8.2 - qt 4.7.1 works fine with PySide, Nicola Il giorno mer, 19/01/2011 alle 08.36 +0100, Vicent Mas ha scritto: 2011/1/18 Nick Gaens m...@nickgaens.com: - Win7 64bit - Python 2.6.6 (r266:84297, Aug 24 2010, 18:46:32) [MSC v.1500 32 bit (Intel)] on win32 - Qt v4.7.0 - PyQt GPL v4.8.1 for Python v2.6 Result: no crashes, works like a charm.. Hi, I get the crash also on Windows Vista 32bit (again Python 2.6 and PyQt 4.8.2) Vicent ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt ___ 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] QMainWindow bug?
Il giorno gio, 20/01/2011 alle 10.57 +0100, Antonio Valentino ha scritto: Hi Nicola, Il giorno Thu, 20 Jan 2011 10:22:55 +0100 Mailing List SVR li...@svrinformatica.it ha scritto: Ok, in a my pyqt app (I'm still using pyqt-4.7.x), I have a dialog that require much time to open so I keep a reference to it in a app global variable and I use this reference to reopen the dialog after the first time. This seems to work and the dialog open much quicker, however in some undeterminated cases I get: RuntimeError: underlying C/C++ object has been deleted when I get this error I recreate the dialog and update the global reference, can you please explain the right way to keep a reference in python to a qt object? One way could be to explicitly reset the global variable global_dialog = None before application shutdown (e.g in QMainWindow.closeEvent) thanks Antonio, my problem is not the segfault on shutdown, I want to keep an object in memory so I can reuse it, the method explained in my previous mail works 99% of the times, sometime I get: RuntimeError: underlying C/C++ object has been deleted do you know a way to avoid that qt delete an object (apart keep a reference to it as explained in my previous mail)? Nicola regards thanks NIcola Il giorno mer, 19/01/2011 alle 23.47 +0100, Erik Janssens ha scritto: there was a change in sip/pyqt from 4.8.1 to 4.8.2 regarding the detection of objects deleted by qt but still referenced in python (which is the case here). in 4.8.1 sip/pyqt tried to detect this to avoid segfaults. this detection however brought other issues with it, therefor the detection was turned off again in 4.8.2 the solution is not to keep references in python of objects owned by qt when they might get deleted. On Wed, Jan 19, 2011 at 12:36 PM, Mailing List SVR li...@svrinformatica.it wrote: I can confirm the segfault: - linux, kernel 2.6.36 - python 2.7.1 - pyqt 4.8.2 - qt 4.7.1 works fine with PySide, Nicola Il giorno mer, 19/01/2011 alle 08.36 +0100, Vicent Mas ha scritto: 2011/1/18 Nick Gaens m...@nickgaens.com: - Win7 64bit - Python 2.6.6 (r266:84297, Aug 24 2010, 18:46:32) [MSC v.1500 32 bit (Intel)] on win32 - Qt v4.7.0 - PyQt GPL v4.8.1 for Python v2.6 Result: no crashes, works like a charm.. Hi, I get the crash also on Windows Vista 32bit (again Python 2.6 and PyQt 4.8.2) Vicent ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] QMainWindow bug?
I can confirm the segfault: - linux, kernel 2.6.36 - python 2.7.1 - pyqt 4.8.2 - qt 4.7.1 works fine with PySide, Nicola Il giorno mer, 19/01/2011 alle 08.36 +0100, Vicent Mas ha scritto: 2011/1/18 Nick Gaens m...@nickgaens.com: - Win7 64bit - Python 2.6.6 (r266:84297, Aug 24 2010, 18:46:32) [MSC v.1500 32 bit (Intel)] on win32 - Qt v4.7.0 - PyQt GPL v4.8.1 for Python v2.6 Result: no crashes, works like a charm.. Hi, I get the crash also on Windows Vista 32bit (again Python 2.6 and PyQt 4.8.2) Vicent ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Hunting down memory leaks
Il giorno mar, 14/12/2010 alle 18.02 +0100, Hans Meine ha scritto:
Am Dienstag 14 Dezember 2010, 17:05:42 schrieb Darryl Wallace:
One of the things I've found in this regard has to do with Python and
garbage collection. If the reference count to certain objects does not go
to zero then the item will not be garbage collected.
Ensure that the objects that you want cleaned up have no references to
them. I've found that setting widgets' parents to None and then setting
that variable to None often does the trick.
Anyone else have tips on garbage collection with PyQt???
I also use sip.delete(obj) or obj.deleteLater() from time to time.
Also I have a large number of helper functions based on the gc module, e.g.
the ones below. These are very useful, use like this:
h1 = gcHistogram()
... # some long-running calculations which seem to leak memory
h2 = gcHistogram()
diffHists(h1, h2)
This will output the *types* of objects that have been created in the
meantime, along with their counts. Sometimes, this will not help much
though,
e.g. if you use standard python lists a lot. (It might make sense to use
specialized classes derived from list anyway, no?)
def gcHistogram():
Returns per-class counts of existing objects.
result = {}
for o in gc.get_objects():
t = type(o)
count = result.get(t, 0)
result[t] = count + 1
return result
def diffHists(h1, h2):
Prints differences between two results of gcHistogram().
for k in h1:
if h1[k] != h2[k]:
print %s: %d - %d (%s%d) % (
k, h1[k], h2[k], h2[k] h1[k] and + or ,
h2[k] -
h1[k])
really useful thanks!
Using these functions I found that if I do something like this:
self.ui.lineEdit.mouseReleaseEvent=self
I have to manually do:
self.ui.lineEdit.mouseReleaseEvent=None
to get the widget deleted, this seems a pyqt bug,
Nicola
HTH,
Hans
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Re: [PyQt] Segmentation faults
Il giorno gio, 05/08/2010 alle 03.10 -0400, Luke Campagnola ha scritto: I believe I have run into a class of bugs in PyQt4. I originally found that QSpinBox.lineEdit() returns a QLineEdit instance which does not maintain its reference count properly after the original QSpinBox is deleted. Thus it is possible to either 1) have uncollectable LineEdits lingering in memory, or 2) crash the program by accessing the LineEdit (see example below). The same bug also applies to: - QAbstractSpinBox.lineEdit - QComboBox.lineEdit, - QAbstractScrollArea.horizontalScrollBar - QAbstractScrollArea.verticalScrollBar - QTreeView.header - QSplitter.handle .. and likely many others. In the best case, this bug causes minor memory leaks that few people are likely to notice. In the worst case, it causes crashes which are very difficult to debug if you don't have easy access to debugging symbols (ie using windows binaries). $ python from PyQt4.QtGui import * a = QApplication([]) s = QSpinBox() l = s.lineEdit() del s l.text() Segmentation fault PySide is more forgiving and raise the following error: RuntimeError: Internal C++ object already deleted. ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
[PyQt] Any examples for qgraphicswebview?
Hi all, can someone provide a basic example on how to use qgraphicswebview in pyqt? thanks Nicola ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Suggestion to get events from a web page
In data giovedì 20 maggio 2010 23:14:55, Mailing List SVR ha scritto: : Hi all, I need to display a web page in my pyqt application, qwebview make this really simple but my interface is without keyboard so I have to show a virtual keyboard when the user select an input text or a selectbox or a textarea so I need to be notified when a such selection occur in the web page, I cannot find any signal that can do this, any advice would be really appreciated, thanks Nicola ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt Here is the solution: http://th30z.netsons.org/2009/03/qt-webkit-virtual-keyboard/ Nicola ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
[PyQt] Suggestion to get events from a web page
Hi all, I need to display a web page in my pyqt application, qwebview make this really simple but my interface is without keyboard so I have to show a virtual keyboard when the user select an input text or a selectbox or a textarea so I need to be notified when a such selection occur in the web page, I cannot find any signal that can do this, any advice would be really appreciated, thanks Nicola ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Embedding VLC
You can also try the vlc python bindings: http://liris.cnrs.fr/advene/download/python-ctypes/ they work on windows and linux, be warned vlc and the vlc python bindings are GPL so I think you have to release any derivated code as gpl too, Nicola In data lunedì 1 marzo 2010 04:13:03, jaybstory ha scritto: : I've heard about the phonon-vlc-backend which appears to not be available yet. Is this what you are talking about? Bugzilla from chri...@gmx.de wrote: Am Samstag, 27. Februar 2010 schrieb jaybstory: I wanted to know if it is possible to embed VLC into a GUI (or to use QProcess to somehow open the external application inside a GUI), if so, how would I go about accomplishing this? Do you know about phonon-vlc? http://gitorious.org/phonon/phonon-vlc -Christoph ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
[PyQt] maxVisibleItems and qcombobox
Hi, I have a combox with about 15 elements I setted maxVisibleItems to 5 but the combo still show all the items on mouse click. I would like to see 5 elements and click to see other 5 and so on, how can I do this? Is this a bug or maxVisibleItems isn't supposed to do this? thanks Nicola ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
[PyQt] More than one statusbar
Hi all, is it possible to have more than one statusbar in a QMainWindow? I would like to have to status bar one up and the other down in the qmainwindow and I want this status bar remain when I change the central widget, any hints? ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Log viewer file change notification
You can use pyinotify (http://trac.dbzteam.org/pyinotify) or inotifyx (https://launchpad.net/inotifyx) if you cannot use gpl code, Nicola In data venerdì 13 novembre 2009 19:14:40, Christian Aubert ha scritto: : I'm using the logging module to keep a log instead of messy print statements users don't want to see. I set up a log viewer but right now users must press an update button to get the latest log file displayed. Is there any way to get a file change notification so I can update the log display on the fly? Christian ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
[PyQt] Pyqt 4.6- sip 4.9 bug
Hi, seems there is a bug with the newest version of pyqt and sip, with pyqt-4.5.4 and sip-4.8.2 is possible to override label events as follow: self.imagelabel.mouseReleaseEvent=self.eventMouseRelease this snippet does't work with pyqt-4.6 and sip-4.9, the event is never triggered, regards Nicola ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
[PyQt] actual vendorid status
Hi, a simple question here http://www.riverbankcomputing.com/software/vendorid/intro I read: The motivation for the VendorID package was following condition in Trolltech's commercial Qt license agreement: Applications may not pass on functionality which in any way makes it possible for others to create software with the Licensed Software. Actually qt is lgpl so is vendoid yet needed to distribute commercial pyqt applications? If i buy a pyqt license have I to apply also vendorid or I can for example distribute my app as pyo file without no other restriction? thanks Nicola ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
[PyQt] Virtual keyboard widget for pyqt
Hi, there is a virtual keyboard widget for touch-screen application for pyqt? Something like this: http://www.qt-apps.org/content/show.php/VirtualKeyboard?content=107388 thanks SVR ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
[PyQt] undefined symbol typeinfo for QXmlDefaultHandler
I have the following error: undefined symbol typeinfo for QXmlDefaultHandler when from a python shell I do: from PyQt4.QtXml import * pyqt is cross compiled for arm, the other modules seems to work fine, some hints? Nicola ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
Re: [PyQt] Fade effect a widget on top of another widget
Thanks, it is possible to have a short example with code? In data martedì 18 agosto 2009 18:23:25, Jason H ha scritto: : That is for a cross fade. You could always fade to empty then fade out. I would probably do something like that for a cross fade. The fader widget appears to do a different kind of fade. The only difference is it is a fade against a solid color. You could create the Pixmap, repsecting the Palette background color. and use that for intermediate fading/in/out ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt ___ PyQt mailing listPyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
