TableView highlight column on mouse-over

KiNgFrUiT

I have a TableView and would like to highlight the column that the mouse is over.
I can do the visual part by drawing a rectangle in the itemDelegate.

What I am struggling with is getting the column index the mouse is over.
I found the function tableView.__listView.columnAt() but it always returns -1

Here is the relevant part of my tableView qml...

property int mouseColumn: 0

itemDelegate: Item {
	 id: item

	 Rectangle {
		  anchors.fill: parent
		  color: "Green"
		  visible: {
		      // highlight the column the mouse is over
				if(styleData.column == tableView.mouseColumn)
					 true
				else
					 false
		  }
	 }
				
	MouseArea {
		anchors.fill: parent
		hoverEnabled: true
		onPositionChanged: {
			var coordinates = item.mapToItem(tableView, mouse.x, mouse.y)

			// TODO: how to find column index at coordinates, columnAt always returns -1 for some reason
			tableView.mouseColumn = tableView.__listView.columnAt(coordinates.x)
		}
	}
}

KiNgFrUiT

Ive been looking into this a bit more myself and ive found that the TableView headerVisible property makes a big difference. I am currently hiding the header.

When headerVisible=false then tableView.__listView.columnAt(x) always returns -1.

When headerVisible=true then tableView.__listView.columnAt(x) works correctly.

Id like to keep the table's header hidden if possible, hopefully a workaround for tableView.__listView.columnAt(x) is possible.

Also, im on Windows with Qt5.5.1 mingw if that makes any difference.