Expose QComboBox to QML

Qnoobish

What version of Qt are you using? Qt 5 ??

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5.1

Qnoobish

Sorry that i make another question but in your QML are you importing qtquick2 or qtquick1?

In case of Qtquick2, I am not sure that a QGraphicsProxyWidget works under Qt5 using QtQuickView classes to load your QML.

But I think your project builds and run so could you please post your code where you load your qml file and register this class?

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qtquick2. I will create a runnable test project and post it here

JKSH

Would it be easier to use a QML combobox?
http://qt-project.org/doc/qt-5.1/qtquickcontrols/qml-qtquick-controls1-combobox.html

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No, unfortunately not. This QML ComboBox is such a bad design. It uses a Popup Menu for the dropdown. Who would ever thought of that? Try to put a list of countries into a QML CB. Not only is it slow as hell, the menu it drops out is also unusable.

Jens

philk: Please file a proper bug or a feature if you are having issues with the qml ComboBox. There is no proper way to embed a widget in Qt Quick 2 so working around it that way is not recommended.

I am not aware of any performance issues with using a popup window in the combo box so a proper bug report with platform and info would be good. (on mac those combo box popups are native)

FYI I also started working on a patch against the dev branch that will enable an editable mode and initial keyboard-index support in ComboBox: https://codereview.qt-project.org/#change,63156

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the QML2 combo box does not use a popup window, it uses a popup menu That is the problem.

Jens

philk: That is an implementation detail and does not describe an actual problem. The QComboBox widget also uses a QMenu to show the actual popup as part of its implementation.

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Then this is a very awkward implementation on Qt side. Nowhere else (in Windows) a popup menu is used for Combo Dropdowns, for obvious reasons. Menus are not (easily) scrollable.