Reliable QWidget to QImage coordinate transformation?

Question

Mouse click events include click coordinates that are relative to the QWidget window in which the click occurred.

Assuming that the widget is displaying an image (i.e. the QWidget contains a QLabel whose QPixmap was built from a QImage), how can the mouse click position be converted into the QImage coordinates?

The simplest solution is to create a custom widget that displays the image and indicates the clicks via a signal. — Kuba hasn't forgotten Monica, Dec 07 '16 at 18:07

score 0 · Accepted Answer · answered Dec 07 '16 at 00:34

0

Looks like the most convenient solution is to process mouse clicks at the QLabel level instead of the QWidget in which it is included. In this case no conversion is needed.

answered Dec 07 '16 at 00:34

MWB

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Reliable QWidget to QImage coordinate transformation?

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