Sizing Issues

I'm continually running into the problem of my child widgets appearing all scrunched together in a little box instead of taking up what I would imagine is the actual screen space. I'm not sure why such small size parameter are being passed down. I don't want to set minimum/maximum sizes as this needs to be adapted to different screens.

My immediate problem is setting a splitterinside a tab. It takes up maybe a quarter of the width. The children of the splitter are thus in a small space instead of taking up the whole tab. I think there is something fundamental to Qt I am missing here. If someone could give me a hint with how to procede it would be greatly appreciated.

I'm using PyQt but its all the similar, here is how I'm specifying the splitter size:
splitter.setGeometry(QRect(0, 25, self.frameSize().width(), self.frameSize().height()))

Yes, you are missing something :) This something is called "layouts" :) Take a look at the QLayout class and its descendants, Johan's tutorial and official Qt tutorial for details.

I'm familiar wtih layouts. If I'm using a splitter though is it necessary for me to put it in a layout as it will be the only item directly inside the tab. I'm using layouts to organize all the child widgets of the splitter though.

class DrugProfile(QWidget):
def __init__(self, parent):
QWidget.__init__(self, parent)
splitter = QSplitter(Qt.Vertical, self, "header")
splitter.setOpaqueResize(TRUE)
splitter.setGeometry(QRect(0, 25, self.frameSize().width(), self.frameSize().height()))
head = Header(splitter) #top child
table = Tables(splitter) #bottom child
splitter.show()

Maybe you should use sizeHint() instead of frameSize()? Widget sizes aren't valid until the widget is shown for the first time.

It came back with the same results.

When I comment out the code of the children it gets even smaller. So the size of the splitter is being determined by its child classes, its widest childset. I think I'll have to investigate that further. I'll have to figure out how to get the children to take up the whole space.

You should put that splitter into a layout too. And the parent should not be a QWidget. Or you can derive your class directly from QSplitter (it'll be even better this way).

Something like:

Code:

---

class DrugProfile(QSplitter):
 def __init__(self, parent):
 QSplitter.__init__(Qt.Vertical, self, parent)
 setOpaqueResize(TRUE)
 head = Header(self) #top child
 table = Tables(self) #bottom child
 show()

---

Ok I'll give that a try too. I have a vague memory of having done that but it really makes more sense anyway.

It worked! Thanks!! I'll post if I have another related question but this looks like I am majorly closer to what I want. Its always a simple solution :) .