How does QT Handle overlapping mouse areas?

[maxwell31]

Hi,

I am creating a plotting component, which has a MouseArea over the whole window for zooming and dragging. On top of this, I want to be able to set marks like this:

        Rectangle{
            id: recMark
            border.width: 0
            width: 1
            height: parent.height
            y: 0
            z: 5
            color: "red"
            opacity: 0.3
            visible: true
            MouseArea {
                anchors.fill: parent
                drag.target: recMark
                drag.axis: Drag.XAxis

            }
        }

Which MouseArea will be active if I click on this Rectangle? And is it possible to control which MouseArea is active?

[sierdzio]

@maxwell31 said in How does QT Handle overlapping mouse areas?:

Which MouseArea will be active if I click on this Rectangle? And is it possible to control which MouseArea is active?

The topmost one (determined by z value) will be "active" - it will catch mouse events.

You can pass them on if you want your bottom one to get some events: in respective event slot set mouse.accepted = false and the event will be propagated further.

All this is described in detail here: link.