Adding zoom option using scroll wheel

[juanmaus]

Adding a PinchArea to allow zooming with scroll wheel while in fullscreen. Useful for 4k+ cams/small screens.

[iEvgeny]

Great idea!
But I think we need to add the "Ctrl" modifier key for this action.

[iEvgeny]

Hmm. This implementation seems to break the current behavior of viewports selection on the grid.
The code needs to be improved.

[juanmaus]

Hmm. This implementation seems to break the current behavior of viewports selection on the grid. The code needs to be improved.

Whoops, forgot that was a feature, I'll try to fix it in the future, first time handling qml code for me, also Ctrl modifiers seems like a great idea

[mabed-fr]

Zoom with onvif or numerical zoom ?

[juanmaus]

Zoom with onvif or numerical zoom ?

Numerical

[mabed-fr]

When can it be merged?

[iEvgeny]

Unfortunately, this pull request breaks the existing functionality and needs to be improved.