PlanetsMain.qml Example File | Qt 3D 5.12.8

- Qt 5.12
- Qt 3D
- Qt 3D: Planets QML Example
- PlanetsMain.qml Example File
- Qt 5.12.8 Reference Documentation

# PlanetsMain.qml Example File

planets-qml/PlanetsMain.qml

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     import QtQuick 2.0
     import QtQuick.Window 2.2
     import QtQuick.Scene3D 2.0
     import "planets.js" as Planets

     Item {
         id: mainview
         width: 1280
         height: 768
         visible: true
         property int focusedPlanet: 100
         property int oldPlanet: 0
         property int frames: 0
         property int sliderLength: (width < height) ? width / 2 : height / 2
         property real textSize: sliderLength / 20
         property real planetButtonSize: (height < 2200) ? (height / 13) : 200

         Connections {
             target: networkController

             onCommandAccepted: {
                 var focusedItem = mainview.Window.window.activeFocusItem
                 if (focusedItem && focusedItem.panningEnabled) {
                     focusedItem.panningEnabled = false
                 }

                 switch (command) {
                 case "selectPlanet":
                     mainview.focusedPlanet = Planets.planetId(decodeURIComponent(value))
                     planetButtonView.forceActiveFocus()
                     planetButtonView.currentIndex = Planets.planetIndex(value)
                     break
                 case "setRotationSpeed":
                     rotationSpeedSlider.forceActiveFocus()
                     rotationSpeedSlider.value = rotationSpeedSlider.minimumValue +
                             ((rotationSpeedSlider.maximumValue - rotationSpeedSlider.minimumValue) * value)
                     break
                 case "setViewingDistance":
                     viewingDistanceSlider.forceActiveFocus()
                     viewingDistanceSlider.value = viewingDistanceSlider.minimumValue +
                             ((viewingDistanceSlider.maximumValue - viewingDistanceSlider.minimumValue) * value)
                     break
                 case "setPlanetSize":
                     planetSizeSlider.forceActiveFocus()
                     planetSizeSlider.value = planetSizeSlider.minimumValue +
                             ((planetSizeSlider.maximumValue - planetSizeSlider.minimumValue) * value)
                     break
                 }
             }
         }

         Scene3D {
             anchors.fill: parent
             aspects: ["render", "logic", "input"]

             SolarSystem { id: solarsystem }
         }

         MouseArea {
             anchors.fill: parent
             acceptedButtons: Qt.LeftButton
             onClicked:
                 focusedPlanet = 100
         }

         onFocusedPlanetChanged: {
             if (focusedPlanet == 100) {
                 info.opacity = 0
                 updatePlanetInfo()
             } else {
                 updatePlanetInfo()
                 info.opacity = 1
             }

             solarsystem.changePlanetFocus(oldPlanet, focusedPlanet)
             oldPlanet = focusedPlanet
         }

         ListModel {
             id: planetModel

             ListElement {
                 name: "Sun"
                 radius: "109 x Earth"
                 temperature: "5 778 K"
                 orbitalPeriod: ""
                 distance: ""
                 planetImageSource: "qrc:/images/sun.png"
                 planetNumber: 0
             }
             ListElement {
                 name: "Mercury"
                 radius: "0.3829 x Earth"
                 temperature: "80-700 K"
                 orbitalPeriod: "87.969 d"
                 distance: "0.387 098 AU"
                 planetImageSource: "qrc:/images/mercury.png"
                 planetNumber: 1
             }
             ListElement {
                 name: "Venus"
                 radius: "0.9499 x Earth"
                 temperature: "737 K"
                 orbitalPeriod: "224.701 d"
                 distance: "0.723 327 AU"
                 planetImageSource: "qrc:/images/venus.png"
                 planetNumber: 2
             }
             ListElement {
                 name: "Earth"
                 radius: "6 378.1 km"
                 temperature: "184-330 K"
                 orbitalPeriod: "365.256 d"
                 distance: "149598261 km (1 AU)"
                 planetImageSource: "qrc:/images/earth.png"
                 planetNumber: 3
             }
             ListElement {
                 name: "Mars"
                 radius: "0.533 x Earth"
                 temperature: "130-308 K"
                 orbitalPeriod: "686.971 d"
                 distance: "1.523679 AU"
                 planetImageSource: "qrc:/images/mars.png"
                 planetNumber: 4
             }
             ListElement {
                 name: "Jupiter"
                 radius: "11.209 x Earth"
                 temperature: "112-165 K"
                 orbitalPeriod: "4332.59 d"
                 distance: "5.204267 AU"
                 planetImageSource: "qrc:/images/jupiter.png"
                 planetNumber: 5
             }
             ListElement {
                 name: "Saturn"
                 radius: "9.4492 x Earth"
                 temperature: "84-134 K"
                 orbitalPeriod: "10759.22 d"
                 distance: "9.5820172 AU"
                 planetImageSource: "qrc:/images/saturn.png"
                 planetNumber: 6
             }
             ListElement {
                 name: "Uranus"
                 radius: "4.007 x Earth"
                 temperature: "49-76 K"
                 orbitalPeriod: "30687.15 d"
                 distance: "19.189253 AU"
                 planetImageSource: "qrc:/images/uranus.png"
                 planetNumber: 7
             }
             ListElement {
                 name: "Neptune"
                 radius: "3.883 x Earth"
                 temperature: "55-72 K"
                 orbitalPeriod: "60190.03 d"
                 distance: "30.070900 AU"
                 planetImageSource: "qrc:/images/neptune.png"
                 planetNumber: 8
             }
             ListElement {
                 name: "Solar System"
                 planetImageSource: ""
                 planetNumber: 100 // Defaults to solar system
             }
         }

         Component {
             id: planetButtonDelegate
             PlanetButton {
                 source: planetImageSource
                 text: name
                 focusPlanet: planetNumber
                 planetSelector: mainview
                 buttonSize: planetButtonSize
                 fontSize: textSize

                 scale: activeFocus ? 1.4 : 1.0

                 Behavior on scale {
                     PropertyAnimation {
                         duration: 200
                     }
                 }

                 signal swipeUp()
                 signal swipeDown()
                 signal swipeLeft()

                 onSwipeUp: {
                     if (planetButtonView.currentIndex > 0) {
                         planetButtonView.currentIndex--
                     } else {
                         rotationSpeedSlider.forceActiveFocus()
                     }
                 }

                 onSwipeDown: {
                     if (planetButtonView.currentIndex < planetButtonView.count - 1) {
                         planetButtonView.currentIndex++
                     } else {
                         planetSizeSlider.forceActiveFocus()
                     }
                 }

                 onSwipeLeft: {
                     if (index <= planetButtonView.count / 2) {
                         rotationSpeedSlider.forceActiveFocus()
                     } else {
                         planetSizeSlider.forceActiveFocus()
                     }
                 }

                 Keys.onPressed: {
                     if (event.key === Qt.Key_Select) {
                         planetSelector.focusedPlanet = focusPlanet
                     }
                 }
             }
         }

         ListView {
             id: planetButtonView
             anchors.verticalCenter: parent.verticalCenter
             anchors.right: parent.right
             anchors.rightMargin: planetButtonSize / 2
             height: childrenRect.height
             spacing: planetButtonSize / 6
             width: planetButtonSize * 1.4
             interactive: false
             model: planetModel
             delegate: planetButtonDelegate
         }

         InfoSheet {
             id: info
             width: 400
             anchors.right: planetButtonView.left
             anchors.rightMargin: 40
             opacity: 1

             // Set initial information for Solar System
             planet: "Solar System"
             exampleDetails: "This example shows a 3D model of the Solar</p>" +
                             "<p>System comprised of the Sun and the eight</p>" +
                             "<p>planets orbiting the Sun.</p></br>" +
                             "<p>The example is implemented using Qt3D.</p>" +
                             "<p>The textures and images used in the example</p>" +
                             "<p>are Copyright (c) by James Hastings-Trew,</p>" +
                             "<a href=\"http://planetpixelemporium.com/planets.html\">" +
                             "http://planetpixelemporium.com/planets.html</a>"
         }

         function updatePlanetInfo() {
             info.width = 200

             if (focusedPlanet !== 100) {
                 info.planet = planetModel.get(focusedPlanet).name
                 info.radius = planetModel.get(focusedPlanet).radius
                 info.temperature = planetModel.get(focusedPlanet).temperature
                 info.orbitalPeriod = planetModel.get(focusedPlanet).orbitalPeriod
                 info.distance = planetModel.get(focusedPlanet).distance
             }
         }

         Row {
             anchors.top: parent.top
             anchors.topMargin: 10
             anchors.horizontalCenter: parent.horizontalCenter

             spacing: 10
             scale: rotationSpeedSlider.activeFocus ? 1.4 : 1.0
             opacity: rotationSpeedSlider.activeFocus ? 1.0 : 0.5

             Behavior on scale {
                 PropertyAnimation {
                     duration: 200
                 }
             }

             Text {
                 anchors.verticalCenter: parent.verticalCenter

                 font.family: "Helvetica"
                 font.pixelSize: textSize
                 font.weight: Font.Light
                 color: rotationSpeedSlider.panningEnabled ? "#80c342" : "#ffffff"
                 text: "Rotation Speed"
             }

             StyledSlider {
                 id: rotationSpeedSlider
                 anchors.verticalCenter: parent.verticalCenter
                 width: sliderLength
                 value: 0.2
                 minimumValue: 0
                 maximumValue: 1
                 onValueChanged: solarsystem.changeSpeed(value)

                 focus: Qt.platform.os === "tvos" ? true : false

                 property bool panningEnabled: false
                 signal swipeDown()
                 signal swipeLeft()
                 signal swipeRight()
                 signal pannedHorizontally(real p)
                 signal pannedVertically(real p)

                 onSwipeDown: {
                     planetSizeSlider.forceActiveFocus()
                 }

                 onSwipeLeft: {
                     viewingDistanceSlider.forceActiveFocus()
                 }

                 onSwipeRight: {
                     planetButtonView.currentIndex = 0
                     planetButtonView.forceActiveFocus()
                 }

                 onPannedHorizontally: {
                     var step = (maximumValue - minimumValue) / 30

                     if (p > 0) {
                         value += step
                     } else {
                         value -= step
                     }
                 }

                 Keys.onPressed: {
                     if (event.key === Qt.Key_Select) {
                         panningEnabled = !panningEnabled
                     }
                 }
             }
         }

         Column {
             anchors.left: parent.left
             anchors.leftMargin: 30
             anchors.verticalCenter: parent.verticalCenter

             spacing: 10
             scale: viewingDistanceSlider.activeFocus ? 1.4 : 1.0
             opacity: viewingDistanceSlider.activeFocus ? 1.0 : 0.5

             Behavior on scale {
                 PropertyAnimation {
                     duration: 200
                 }
             }

             StyledSlider {
                 id: viewingDistanceSlider

                 anchors.horizontalCenter: parent.horizontalCenter
                 orientation: Qt.Vertical
                 height: sliderLength
                 value: 1
                 minimumValue: 1
                 maximumValue: 2
                 onValueChanged: solarsystem.changeCameraDistance(value)

                 property bool panningEnabled: false
                 signal swipeUp()
                 signal swipeDown()
                 signal swipeRight()
                 signal pannedHorizontally(real p)
                 signal pannedVertically(real p)

                 onSwipeUp: {
                     rotationSpeedSlider.forceActiveFocus()
                 }

                 onSwipeDown: {
                     planetSizeSlider.forceActiveFocus()
                 }

                 onSwipeRight: {
                     planetButtonView.currentIndex = 0
                     planetButtonView.forceActiveFocus()
                 }

                 onPannedVertically: {
                     var step = (maximumValue - minimumValue) / 30

                     if (p > 0) {
                         value += step
                     } else {
                         value -= step
                     }
                 }

                 Keys.onPressed: {
                     if (event.key === Qt.Key_Select) {
                         panningEnabled = !panningEnabled
                     }
                 }
             }

             Text {
                 anchors.horizontalCenter: parent.horizontalCenter

                 font.family: "Helvetica"
                 font.pixelSize: textSize
                 font.weight: Font.Light
                 color: viewingDistanceSlider.panningEnabled ? "#80c342" : "#ffffff"
                 text: "Viewing\nDistance"
             }
         }

         Row {
             anchors.bottom: parent.bottom
             anchors.bottomMargin: 10
             anchors.horizontalCenter: parent.horizontalCenter

             spacing: 10
             scale: planetSizeSlider.activeFocus ? 1.4 : 1.0
             opacity: planetSizeSlider.activeFocus ? 1.0 : 0.5

             Behavior on scale {
                 PropertyAnimation {
                     duration: 200
                 }
             }

             Text {
                 anchors.verticalCenter: parent.verticalCenter
                 font.family: "Helvetica"
                 font.pixelSize: textSize
                 font.weight: Font.Light
                 color: planetSizeSlider.panningEnabled ? "#80c342" : "#ffffff"
                 text: "Planet Size"
             }

             StyledSlider {
                 id: planetSizeSlider
                 anchors.verticalCenter: parent.verticalCenter
                 width: sliderLength
                 value: 1200
                 minimumValue: 1
                 maximumValue: 2000
                 onValueChanged: solarsystem.changeScale(value, false)

                 property bool panningEnabled: false
                 signal swipeUp()
                 signal swipeLeft()
                 signal swipeRight()
                 signal pannedHorizontally(real p)
                 signal pannedVertically(real p)

                 onSwipeUp: {
                     rotationSpeedSlider.forceActiveFocus()
                 }

                 onSwipeLeft: {
                     viewingDistanceSlider.forceActiveFocus()
                 }

                 onSwipeRight: {
                     planetButtonView.currentIndex = planetButtonView.count - 1
                     planetButtonView.forceActiveFocus()
                 }

                 onPannedHorizontally: {
                     var step = (maximumValue - minimumValue) / 30

                     if (p > 0) {
                         value += step
                     } else {
                         value -= step
                     }
                 }

                 Keys.onPressed: {
                     if (event.key === Qt.Key_Select) {
                         panningEnabled = !panningEnabled
                     }
                 }
             }
         }

         // FPS display, initially hidden, clicking will show it
         FpsDisplay {
             id: fpsDisplay
             anchors.left: parent.left
             anchors.bottom: parent.bottom
             width: 32
             height: 64
             hidden: true
         }

         Timer {
             interval: 1000
             repeat: true
             running: !fpsDisplay.hidden
             onTriggered: {
                 fpsDisplay.fps = frames
                 frames = 0
             }
             onRunningChanged: frames = 0
         }

         Loader {
             anchors.fill: parent

             source: Qt.platform.os === "tvos" ? "AppleTVInput.qml" : ""
         }
     }