General and Desktop

If you want to use QList_View_, then you are using it with a model, a QAIM subclass. If you want to add something to the displayed list, you have to add that piece of data to the model. The view will then display it. You are not telling us what type of model you are using, so it is hard to tell you how to do this. In your small code sample, you are trying to do something that looks more like how you would work with QListWidget. That will not work. Perhaps your model is a QStandardItemModel? In that case, you can add a new item to this model with a syntax that looks a bit like what you are trying to do.

i found what i was looking for. the disconnectFromHost() disconnects the client from the host.

I also found "this answer":http://developer.qt.nokia.com/faq/answer/is_it_possible_to_have_transparent_qt_widgets_on_top_of_a_qglwidget, but it sounds old or false.

great. thank you for your replies.)

If the new window is a top level window, you have to use global coordinates. that means: @ CMyDialog dlg; dlg.show(); QPoint ptGlobal = ui->pushButton->mapToGlobal(QPoint(0, ui->pushButton->height())); QPoint ptLeftTop = mapToGlobal(QPoint(0,0)); QPoint ptFrame = frameGeometry().topLeft(); ptGlobal += (ptLeftTop - ptFrame); // add border size dlg.setGeometry(QRect(ptGlobal, dlg.size())); dlg.exec(); @

Slots can be executed immideatly or queued, depending on the connection and the thread appearance. By default, connections are auto connections, which means, if the objects live in the same thread, they are direct connections. direct connections are like direct function calls. If the objects live in different threads or you specify QueuedConnection in the connect statement, the signal is queued to the event queue and executed in the next queue iteration (message Loop). To specify a connect type, use the following connect statement: @ connect (sender, signal, receiver, method, Qt::QueuedConnection); @ "see QObject::connect":http://doc.qt.nokia.com/4.7/qobject.html#connect

thank you - i haven't known about this article before.

How could it do anything? After all, it does know nothing about how in your subclass the data will be stored...

I think, though, that there are some notable exceptions. For instance, if I'm writing a quick-and-dirty app where I need to expose fairly simple C++-related data to QML or something, I don't have a problem with including data in the model itself. However, this is generally only in the cases where it's not a huge project, and when I don't expect scalability or maintenance to become a major factor. It kind of depends on the application itself, I think.

Thanks a lot for the replies! Thinking about this more, I came up with this "model", please correct me if I'm wrong: If Qt doesn't open some "background" threads on its own, there is only one thread dealing with the GUI (in my code). Thus, no race condition can happen since only one method (whether one of mine or Qt's internal stuff) can be executed at the time within one thread. In that sense using QTimer or sending an event into the queue makes no difference since once the signal is delivered to a slot for processing no other event will be handled (as we are in the same thread)? Or is there more to this story? (currently reading the article :))

Yes, i've just installed k-lite codec pack, and this still doesn't work. Do you have any example of working "avi" VideoPlayers? Thanks :)

I am just wondering what you are trying to achieve at all. To me grids of buttons filled from a database bring back scary memories of - dare I say it? - calendars. Perhaps a button is not what you need for your UI at all...

This "FAQ":http://developer.qt.nokia.com/faq/answer/how_can_i_dynamically_switch_between_languages_in_my_application_using_e.g_ contains a complete example that illustrates how you can implement dynamic translation. You can follow the setup from that example to see if that helps getting the translation to work.

The problem was solved by removing all @ self.layout.setSizeConstraint(QtGui.QLayout.SetNoConstraint)@ and by adding a @ self.dashboard.label.setSizePolicy(QtGui.QSizePolicy.Preferred, QtGui.QSizePolicy.Ignored)@ just before the animation starts.

If there are any basic questions which prevent you from understanding most of the documentation feel free to ask. That's way better than having tons of specific questions and stumbling from one problem to another.

See "ECMAScript Reference":http://doc.qt.nokia.com/latest/ecmascript.html and "ECMA-262 specification":http://www.ecma-international.org/publications/standards/Ecma-262.htm.

Thanks for advice:) I heard about QStringList but I had never an opportunity to use it. However, I'll check QStringList out and mayby I'll make a switch in my project :)

Hugues fixed this in the master branch. Thanks for the report!

Thanks for the notice, that was why it didn't work. By make the page transparent, I mean have a hole inside the QToolBox. And actually not a "hole" like 100% transparent but I would to set the transparency. For example, if you set the stylesheet with: @QToolBox QWidget[myProperty="true"] { background-color: rgba(0, 255, 0,20); }@ You'll see some green and the transparency are here too BUT still with the gray in background. Like if there is another widget to set!