how set a qt widget subproperty with StyleSheet

Question

I would like to set the QT QDockWidget DockWidgetClosable property using a StyleSheet . However it's is inside 'features' property.

How can I change it using stylesheets?

I tried it without success.

For instance.

QDockWidget{
    qproperty-floating:false; 
    qproperty-windowTitle:omg12;  
}

Sets the parameter "floating" and "windowTitle" to those respective values. but I haven't found a key to set the "DockWidgetClosable" value.

You mean [:closable](http://doc.qt.io/qt-5/stylesheet-reference.html#closable-ps) for example? — IAmInPLS, May 19 '16 at 15:00
no @AlexisP. :closable is a state selector. I would like to Change this parameters. For instance. qproperty-floating:false; qproperty-windowTitle:omg12; set the parameter "floating" and "windowTitle" — Daniel Santos, May 19 '16 at 16:12

score 1 · Accepted Answer · answered Jun 22 '16 at 12:05

Since QDockWidget is pretty much considered a "class" in the .qss stylesheet - and if you want to modify the DockWidgetClosable property of all QDockWidget - you'll have to change the values of all the QDockWidget classes like so:

.QDockWidget{
    DockWidgetClosable: true;
}

score 0 · Answer 2 · edited Jun 29 '21 at 21:59

Solution

You can change it with a style sheet actually, but not exactly as described above.

The only way I got it working was by directly calling the qproperty-feature and set its value to a string which contains each name of a sub-feature I want to use and separating them by the vertical bar symbol.

For example:

QDockWidget{
   qproperty-features:"DockWidgetClosable | DockWidgetFloatable | DockWidgetVerticalTitleBar";
}

Where did I find this information?

Unfortunately there is no direct information available, but I discovered a little hint when reading the online documentation:

https://doc.qt.io/qt-5/qdockwidget.html#DockWidgetFeature-enum

There you can find a table for the enum constants and the corresponding values. One of the table entries caught my eyes:

Constant	Value
QDockWidget::AllDockWidgetFeatures	DockWidgetClosable\|DockWidgetMovable\|DockWidgetFloatable

From this entry I concluded that maybe the sub-features of the qproperty-feature can be set by their names and luckily it worked.

how set a qt widget subproperty with StyleSheet

2 Answers2

Solution

Where did I find this information?