QTextEdit on top of QGraphicsView, not QGraphicsScene

[genjix]

I have a QGraphicsView and want to add a QTextEdit on top of that, which resizes with the whole window. I parent it to the view, instead of the scene since the text needs to remain the same size.

screen.jpg

def resizeEvent(self, event):
        # .....
        winSize = self.contentsRect().size()
        winw, winh = winSize.width(), winSize.height()
        self.chat.resize(winw*0.5, winh*0.5)
        self.chat.move(10,winh*0.5)

def resizeEvent(self, event):
        # .....
        winSize = self.contentsRect().size()
        winw, winh = winSize.width(), winSize.height()
        self.chat.resize(winw*0.5, winh*0.5)
        self.chat.move(10,winh*0.5)

To copy to clipboard, switch view to plain text mode 

At the moment I resize it manually in the resizeEvent, but it's ugly since when you resize it updates and when scrollbars appear, it becomes transparent and I don't know how to turn it off.

How should I be doing this?

It's as if the widget has no 'sense' of the size of the window. If I could attach another widget to the window layered on top of the QGraphicsView below then this could be easily be solved by using layouts.

window.setWidget(QGraphicsScene); window.setWidget2(interactableGui)

That sort of thing

[wysota]

I parent it to the view, instead of the scene since the text needs to remain the same size.

Eeem... would you care to explain what you mean by this?

[jamie721]

Ok im not sure this will help but i thought i should say i think the QGraphicsScene is just a collection of data with accessors and mutators (methods) no visual element. the graphics view is the widget that shows the scene if you get what i mean.


if i am wrong feel free to tell me as i am learning to.

[genjix]

If you parent it to the scene, then when you resize the window (and hence the view), the text will get smaller (and the box as a whole).

If you parent it to the view, then the whole box gets smaller with the text remaining the same size. Although then I am needing to resize the box manually inside resizeEvent since it seems to have no sense of it's parent's size.

[genjix]

someone told me I have to use QGraphicsLayout. Here's what was said on the ML for others:

Well for a start you never mentioned that you were using QGraphicsView. In 
fact you specifically said "widget". 
 
Secondly, you can still use a QGraphicsLayout subclass. In this case set the 
layout on a parent QGraphicsWidget rather than a QWidget.
 
This will *NOT* rescale your content but will only alter the size of your 
QGraphicsWidget. I do this all of the time so I know that it works.
 
If you can still not get this to work please post a small *compilable* example 
that shows the problem and we can help to modify it to make it work.
 
Cheers,
 
Sean

Well for a start you never mentioned that you were using QGraphicsView. In 
fact you specifically said "widget". 

Secondly, you can still use a QGraphicsLayout subclass. In this case set the 
layout on a parent QGraphicsWidget rather than a QWidget.

This will *NOT* rescale your content but will only alter the size of your 
QGraphicsWidget. I do this all of the time so I know that it works.

If you can still not get this to work please post a small *compilable* example 
that shows the problem and we can help to modify it to make it work.

Cheers,

Sean

To copy to clipboard, switch view to plain text mode 

[wysota]

I'm still not sure I understand what you mean (resizing the window doesn't cause any resizing of any of the items on its own, you have to implement it yourself) but I think that you might want to set the ItemIgnoresTransformations flag on the text edit item.