QGraphicsWidget sizing and expand direction in QGraphicsLinearLayout

sngqt

I had a QGraphicsWidget with QGraphicsLinearLayout assigned to it. The layout contains many QGraphicsWidget items. I want to re-size each individual QGraphicWidget by dragging either its left edge or its right edge.

-When I drag the right edge, I want QGraphicsWidget expand its size to the right and shift other widgets (from the right side of current adjusting widget). This can be achieved easily because of the default behavior of QGraphicsLinearLayout.

-When I drag the left edge, I want QGraphicsWidget expand its size to the left and shift other widgets (from the left side of current adjusting widget).

Illustration diagram

SGaist

Hi and welcome to devnet,

That sounds rather like a QSplitter behavior, one between each widget

sngqt

Hi SGaist,
Does GraphicsView / GraphicsScene have that built-in behavior?
Think I can subclass QGraphicsLayout .
In the worst case , i have to manually keep track of item's coordinates by myself.

SGaist

AFAIK, no

Wouldn't using QSplitter and only one QGraphicsWidget with be simpler ?

sngqt

Thanks for response.
Can you please go a bit more detail?
How would you add QSplitter (QWidget based) into QGraphicsLinearLayout?

SGaist

No, my idea was to build your set of resizable widgets with QSplitter and then add that QSplitter to your scene