Rotate a QLine

Sucharek

Hi,

I want to rotate a QLine, but I don't know how. I tried ui->line->setRoation() but thats not a valid command.
Do you know how to rotate it?
Thanks

eyllanesc

@Sucharek Your question is unclear. QLine is not a visual element but only a container for information. Or do you mean a QGraphicsLineItem? setRoation OR setRotation?

Sucharek

Hi, I meant rotating it from MainWindow

eyllanesc

@Sucharek Line is a custom widget and we don't know the code, if you want help provide the code for that class.

Sucharek

I found the Line widget in the Display Widgets menu in Qt Creator.
The Line widget isn't custom

Sorry for the delay, I have to wait 600 second to post a reply

eyllanesc

@Sucharek Okay, those "Line" are actually QFrame and with these elements you won't be able to do any rotation. In this case you must create custom QWidget, override the paintEvent to make the custom paint and promote them if you want to use them through QtDesigner.

Sucharek

Ok, but if I'd do that, will it lose a stretching (expanding) ability?
If it does, is there an object (that I can make look like a line) that can rotate?

Dan203

@Sucharek said in Rotate a QLine:

Ok, but if I'd do that, will it lose a stretching (expanding) ability?
If it does, is there an object (that I can make look like a line) that can rotate?

That's actually a frame. You can change it to vertical using...

setFrameShape(QFrame::VLine);

and back to horizontal using...

setFrameShape(QFrame::HLine);

Sucharek

Hi, thanks for the response.
That was not what I was looking for, but I found another way.
I used QGraphicsScene.