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mavlink / qgroundcontrol

Cross-platform ground control station for drones (Android, iOS, Mac OS, Linux, Windows)
http://qgroundcontrol.io
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FlightMap zooming issue in Linux #11185

Open omid-esrafilian opened 8 months ago

omid-esrafilian commented 8 months ago

@DonLakeFlyer I realized that zooming the map using the Mouse middle button (wheel) does not work in Linux, either in Fly View or Plan View. However, if the acceptedDevices of the WheelHandler in the FlightMap.qml file is changed as follows, the issue can be resolved.

acceptedDevices: PointerDevice.Mouse | PointerDevice.TouchPad

I was wondering if the solution would make sense.

DonLakeFlyer commented 8 months ago

I don't know. That wheel handler code was taken right out of the Qt Docs for the Map qml item. I assume it correctly works around the bug they describe. You can see it here: https://doc.qt.io/qt-6/qml-qtlocation-map.html. Could. you take a look at that as well as the details on the bug it references and see what you think?

omid-esrafilian commented 8 months ago

@DonLakeFlyer I have reviewed the bug reports, but they are dated from a couple of years ago, so It's unclear whether the issue still exists. I have also checked the "OrbitCameraController" qtquick3d module provided by Qt for controlling the camera using a mouse or touchpad/touchscreen. It seems that the "WheelHandler" is configured similarly to what I mentioned above, and no reports of any bug. However, to be on the safe side, I have checked the "Qt.platform.pluginName" under Linux when using the mouse (at least in my case) and it appears to be "xcb". I added this as another exception in the code and it works as expected. Here is the updated code:

acceptedDevices: Qt.platform.pluginName === "cocoa" || Qt.platform.pluginName === "wayland" || Qt.platform.pluginName === "xcb"? PointerDevice.Mouse | PointerDevice.TouchPad : PointerDevice.Mouse

So, what do you think?