How to pass variables between Rectangles?

franziss

How do I pass a variable from rectangle bottom to rectangle left. For e.g. the code below, I like to pass the bottomMouseY variable of rectangle bottom to rectangle left

Is it related to signals and slots? But I can't find any info about signals and slots for Qt quick

@
Rectangle {
id: bottom

MouseArea {
    id: bottomMouseAreaBorderTop
    hoverEnabled: true
    property int bottomMouseY

    onPressed: {
        bottomMouseY = mouseY
    }

    onPositionChanged: {
        // pass bottomMouseY to rectagle left
    }
}

}

Rectangle {
id: left

}
@

alexander

Do you mean next:

@Rectangle {
id: left
property alias bottomMouseY1 : bottomMouseAreaBorderTop.bottomMouseY
}@

ZapB

Declare a property on bottom, mouseY, say
In the onPressed: signal handler, set the bottom.mouseY property
In left, declare a property, bottomMouseY, say and bind it to bottom.mouseY

Something like this (not tested):

@
Rectangle {
id: bottom
property int mouseY: -1

MouseArea {
    id: bottomMouseAreaBorderTop
    hoverEnabled: true

    onPressed: {
        bottom.mouseY = mouse.y
    }

    onPositionChanged: {
        bottom.mouseY = mouse.y
    }
}

}

Rectangle {
id: left
bottomMouseY: bottom.mouseY
}
@

franziss

Thank you Alexander and ZapB for your help, it works!

ZapB, the second rectangle should be

@
Rectangle {
id: left
property int bottomMouseY: bottom.mouseY
}
@

for it to work

ZapB

Yeah, I did say "not tested". Thanks for pointing out my (ahem) deliberate mistake ;-)