Not sure I get what you are trying to achieve, but having a mouse area where
the coordinate are local you can map them to global or to an item. If the mouse
area should not grab the mouse event, make sure to add those to your mouse area
hoverEnabled: true
preventStealing: true
propagateComposedEvents: true
acceptedButtons: Qt.NoButton
Also do not accept the events if not processing it or the event will be stopped
(do this for all event that can be accepted):
onClicked:
{
mouse.accepted = false;
}
This should make your overlay mouse area nearly transparent. This way the
mouseArea overlay known the “global position” and can act upon it and the
actual behavior under it can process the click like normal.
You can use a single mouse area that overlay the whole items tree (MouseArea
into Root Item fill) and change the global coordinate into a Qml Singleton. Any
part of the application could connect to the coordinate and check if the global
to whatever item you need match and act according to it.
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From: Interest <interest-boun...@qt-project.org> On Behalf Of Jason H
Sent: March 21, 2019 10:11 AM
To: "René Hansen" <ren...@gmail.com>
Cc: interest <interest@qt-project.org>
Subject: Re: [Interest] Track global mouse position in QML
Please forgive me if I don't completely understand...
Maybe you want an underlying mouse area, not an overlaynig one? I'd suggest you
just move the MouseArea in the file.
You can always use an overlaying one and translate the mouse events to the
child, if there is one. This is what I do for a sample drawing app I have:
In TouchTestRect.qml:
function dispatchTouchEvent(x,y) {
var c = childAt(x,y);
var typename = "" + c;
var box;
if (c && (typename.startsWith("QQuickRow") ||
typename.startsWith("QQuickColumn"))) {
var point = mapToItem(c, x, y);
box = c.childAt(point.x, point.y);
typename = "" + box;
} else if(typename.startsWith("TouchHitBox_QMLTYPE")) {
....
}
...
}
then:
MouseArea {
anchors.fill: parent
onMouseXChanged: {
touchTestRect.dispatchTouchEvent(mouseX, mouseY)
}
onMouseYChanged: {
touchTestRect.dispatchTouchEvent(mouseX, mouseY)
}
}
Sent: Thursday, March 21, 2019 at 7:50 AM
From: "René Hansen" <ren...@gmail.com<mailto:ren...@gmail.com>>
To: interest <interest@qt-project.org<mailto:interest@qt-project.org>>
Subject: [Interest] Track global mouse position in QML
Hi all,
I want to track mouse movement within my entire application window, because I
need to show/hide/move items around where my cursor is at certain times. (Think
e.g. custom cursor)
I can do it easily by filling the entire window with a MouseArea and handle
onPositionChanged. The problem is that any mouse sensitive inputs underneath,
then get's blocked by the overlaying MouseArea. E.g. a TextField that is
usually highlighted on hover and clickable, no longer receives any mouse events.
Is there any straightforward solution to this?
I know QQuickWindow has a mouseMoveEvent, but that doesn't seem to be exposed
in QML and if I can avoid subclassing and exposing a custom class, I'd rather
do that.
Cheers,
René Hansen
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