- Qt 5.5
- Qt Canvas 3D
- Planets Example
- PlanetButton.qml Example File
- Qt 5.5.1 Reference Documentation

# PlanetButton.qml Example File

canvas3d/threejs/planets/PlanetButton.qml

    /****************************************************************************
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    ** Copyright (C) 2015 The Qt Company Ltd.
    ** Contact: http://www.qt.io/licensing/
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    ** This file is part of the QtCanvas3D module of the Qt Toolkit.
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    import QtQuick 2.0

    Rectangle {

        id: planetButton
        property alias text: planetText.text
        property alias source: planetImage.source
        property alias focusPlanet: planetImage.focusPlanet
        property Item planetSelector: parent.parent
        property int buttonSize: 70
        property int fontSize: 16

        width: buttonSize; height: buttonSize
        color: "transparent"

        Image {
            id: planetImage
            anchors.fill: parent
            property int focusPlanet

            MouseArea {
                anchors.fill: parent
                hoverEnabled: true
                onClicked: { planetSelector.focusedPlanet = focusPlanet; }
                onEntered: PropertyAnimation { target: planetText; property: "opacity"; to: 1 }
                onExited: PropertyAnimation { target: planetText;
                    property: "opacity";
                    to: {
                        if (planetText.text != "Solar System")
                           0
                        else
                           1
                    }
                }
            }
        }

        Text {
            id: planetText
            anchors.centerIn: parent
            font.family: "Helvetica"
            font.pixelSize: fontSize
            font.weight: Font.Light
            color: "white"
            opacity: {
                if (text == "Solar System") {
                    opacity = 1;
                } else {
                    opacity = 0;
                }
            }
        }

    }