Qt QGraphicsview how to hook to resize event

Question

we're working on a Qt C++ Widget project and recently ve'we run into trouble. We're Qt rookies.

On our widget there are two QGraphicsView which need to resize automatically when the window is resized (we've done that) and keep the content inside them resized/fit/scaled accordingly to...

So we've figured we need to somehow hook to onResizeEvent or find which slot does it. But we're somehow lost as to how to do it.

P.S.: Please excuse my english.

Answer 1

If you have a QWidget you only need to reimplement the resizeEvent function.

void QWidget::resizeEvent ( QResizeEvent * event ) [virtual protected]

In the Qt documentation you can find the scribble example for a full code example: http://doc.qt.io/qt-5/qtwidgets-widgets-scribble-example.html

Alternatively you can install an event handler and grab the QEvent::Resize. How to install event filters is described here: http://qt-project.org/doc/qt-4.8/eventsandfilters.html