- Qt 5.15
- Coffee Machine Example
- Qt 5.15.19 Reference Documentation

# Coffee Machine Example

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     import QtQuick 2.4
     import QtQuick.Controls 2.0
     import QtQuick.Layouts 1.3
     import Coffee 1.0

     Item {
         id: root

         width: Constants.width + Constants.leftSideBarWidth
         height: Constants.height

         property alias milkSlider: milkSlider
         property alias sugarSlider: sugarSlider

         property alias brewButtonSelection: brewButtonSelection
         property bool selected: false
         property alias brewButton: brewButton
         property alias sideBar: sideBar
         property alias backButton: backButton

         property alias questionVisible: cup.questionVisible

         property real coffeeAmount: 5

         property bool inSettings: false

         state: "initial state"

         Rectangle {
             id: rectangle
             color: Constants.backgroundColor
             anchors.fill: parent
         }

         Rectangle {
             id: rightSideBar

             x: 658
             y: 0
             width: Constants.leftSideBarWidth
             height: 768
             color: "#eec1a2"
             visible: false
             anchors.right: parent.right

             Column {
                 spacing: 32
                 anchors.bottom: brewButton.top
                 anchors.bottomMargin: 100
                 anchors.horizontalCenter: parent.horizontalCenter

                 Slider {
                     id: milkSlider
                     width: 256
                     height: 48

                     to: 10
                     value: 6

                     Image {
                         x: 48
                         y: -12
                         source: "images/icons/contents/milk.png"
                     }
                 }
                 Slider {
                     id: sugarSlider

                     width: 256
                     height: 48
                     to: 10
                     stepSize: 1
                     value: 0

                     Image {
                         x: 48
                         y: -12
                         source: "images/icons/contents/sugar.png"
                     }
                 }
             }

             NavigationButton {
                 id: brewButton

                 text: "Brew"
                 anchors.bottom: parent.bottom
                 anchors.right: parent.right
                 anchors.rightMargin: Constants.defaultMargin
                 anchors.bottomMargin: Constants.defaultMargin
             }
         }

         SideBar {
             id: sideBar
             width: Constants.leftSideBarWidth
         }

         states: [
             State {
                 name: "initial state"
                 when: !root.selected && !root.inSettings
             },
             State {
                 name: "selected state"
                 when: root.selected

                 PropertyChanges {
                     target: cup

                     questionVisible: false
                     visible: true
                 }

                 PropertyChanges {
                     target: brewButton
                     visible: true
                 }

                 PropertyChanges {
                     target: brewButtonSelection
                     visible: true
                 }
             },
             State {
                 name: "settings"
                 when: root.inSettings
                 PropertyChanges {
                     target: cup
                     x: 354
                     y: 0
                     questionVisible: false
                     visible: true
                     milkAmount: milkSlider.value
                     sugarAmount: sugarSlider.value
                 }

                 PropertyChanges {
                     target: brewButton
                     visible: true
                 }

                 PropertyChanges {
                     target: backButton
                     opacity: 1
                 }

                 PropertyChanges {
                     target: rightSideBar
                     visible: true
                 }
             }
         ]

         CupForm {
             id: cup
             anchors.right: rightSideBar.left
             anchors.left: sideBar.right
             visible: true
             milkAmount: sideBar.currentMilk
             coffeeAmount: sideBar.currentCoffeeAmount
             coffeeLabel: sideBar.currentCoffee
             questionVisible: true
         }
         NavigationButton {
             id: backButton
             text: "Back"
             opacity: 0
             anchors.leftMargin: Constants.defaultMargin
             anchors.bottom: parent.bottom
             anchors.left: sideBar.right
             anchors.bottomMargin: Constants.defaultMargin
             forward: false
         }

         NavigationButton {
             id: brewButtonSelection

             anchors.left: sideBar.right
             anchors.leftMargin: Constants.defaultMargin
             anchors.bottom: parent.bottom
             anchors.bottomMargin: Constants.defaultMargin
             visible: false
         }
     }