Qt dynamic layout

Question

I'm trying to implement a layout like the file explorer in thumbnails mode. The items are in a grid with fixed distance between them and when you resize the main window, the items are re-positioned to fit.

For example, on a small window you have:

i1 i2 i3
j1 j2 j3
k1 k2 k3

But when the window is wider, the items become:

i1 i2 i3 j1
j2 j3 k1 k2
k3

And if you make the window even wider, the items become:

i1 i2 i3 j1 j2
j3 k1 k2 k3

I'm trying to implement it as simply as possible, maybe using only the default classes?...

The HBoxLayout doesn't overflow if you put an infinite number of items; they just line up infinitely.

The GridLayout cannot help, because after you put the items first, after a window resize, you have to clean the layout, re-calculate the number of items, re-populate the layout with the new order. It doesn't reposition the items automatically.

Another way could be to put items in a TableWidget, Qt3 style. But that's just the same; after window resize, you have calculate how many items fit in the new window, clean the table and re-populate.

There is also the fix position method. You put the items in fixed position and move them after each window resize... it's a headache.

Did anyone try something like that - an explorer or image viewer? How did you resolve this issue?

Answer 1

I think you need to look into doing something like the FlowLayout from the example set. Note that there is a python port of it.