14.1.488. tablet_qt/resources/camcops/camera_qml/Popup.qml

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// Popup.qml
// - base class for popup menus

import QtQuick 2.0

Rectangle {
    id: popup

    radius: 5
    border.color: "#000000"
    border.width: 2
    smooth: true
    color: "#5e5e5e"

    state: "invisible"

    states: [
        State {
            name: "invisible"
            PropertyChanges { target: popup; opacity: 0 }
        },

        State {
            name: "visible"
            PropertyChanges { target: popup; opacity: 1.0 }
        }
    ]

    transitions: Transition {
        NumberAnimation { properties: "opacity"; duration: 100 }
    }

    function toggle() {
        if (state == "visible")
            state = "invisible";
        else
            state = "visible";
    }
}