How to set an item property of one qml from main.qml - qt

Question

I waste my time to find how set the visible property to false, the delegate being in an another qml file.
For instance here is a simple example based on Places Map.
Marker.qml
import QtQuick 2.0
import QtLocation 5.6
MapQuickItem {
id: idPointsMarker
sourceItem: Loader{sourceComponent: idRect}
visible: true //if set manually to false, everything works correctly
Component{
id: idRect
Rectangle{
width: 20
height: 20
color: "blue"
}
}
}
and the main.qml
import QtQuick 2.0
import QtQuick.Window 2.0
import QtLocation 5.6
import QtPositioning 5.6
Window {
width: 512
height: 512
visible: true
PositionSource {
...
}
property variant locationOslo: QtPositioning.coordinate( 59.93, 10.76)
PlaceSearchModel {
...
}
Map {
id: map
anchors.fill: parent
plugin: Plugin {name: "osm"}
center: locationOslo
zoomLevel: 13
MouseArea {
id : mouseMap
anchors.fill: parent
onDoubleClicked: {
console.log("DoubleClicked")
Marker.idPointsMarker.visible = false // pb is here
}
}
MapItemView {
model: searchModel
delegate: Marker{
coordinate: place.location.coordinate
}
}
}
}
I wish to toggle the visibility to false on doubleclick. I am not able to access the property anyhow the way i write it. What is the correct syntax?
Sorry for a so simple question. Thanks for help.

Answer 1

You do not have to set the property in main.qml, you must do it in Marker.qml, since the elements of Marker.qml can access all the elements of main.qml. One solution is to establish a property of type bool that manages the visibility and that changes in the double click:
main.qml
Map {
[...]
property bool isVisibleItems: true
MouseArea {
id : mouseMap
anchors.fill: parent
onDoubleClicked: map.isVisibleItems = !map.isVisibleItems
}
[...]
Marker.qml
import QtQuick 2.0
import QtLocation 5.6
MapQuickItem {
id: idPointsMarker
sourceItem: Loader{sourceComponent: idRect}
visible: map.isVisibleItems
Component{
id: idRect
Rectangle{
width: 20
height: 20
color: "blue"
}
}
}
In the following link there is an example