Is there a way to zoom in and out of a paint event?

[Mark_AM]

I am looking for a way to zoom in and out of a paintevent and I'm not really sure how to go about it.

Any help would be appreciated.

[ofmrew]

Have you tried setting the transformation matrix?

[Kent-Dorfman]

@ofmrew said in Is there a way to zoom in and out of a paint event?:

Have you tried setting the transformation matrix?

looks reasonable to me. QPainter has several methods that are directly related to this.

[ofmrew]

Do you know what the transformation matrix is and how to use it?

[Kent-Dorfman]

read the QPainter documentation

[ofmrew]

Better yet read: https://doc.qt.io/qt-5/qtwidgets-painting-transformations-example.html as it gives examples.