qt-everywhere-src-5.15.1/qtdeclarative/tests/manual/nodetypes/Animators.qml

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import QtQuick 2.5

Item {
    id: window

    Rectangle {
        anchors.fill: parent
        gradient: Gradient {
            GradientStop { position: 0.0; color: "#14148c" }
            GradientStop { position: 0.499; color: "#14aaff" }
            GradientStop { position: 0.5; color: "#80c342" }
            GradientStop { position: 1.0; color: "#006325" }
        }
    }

    SequentialAnimation {
        id: plainAnim
        SequentialAnimation {
            ParallelAnimation {
                PropertyAnimation {
                    property: "y"
                    target: smiley
                    from: smiley.minHeight
                    to: smiley.maxHeight
                    easing.type: Easing.OutExpo
                    duration: 300
                }
                PropertyAnimation {
                    property: "scale"
                    target: shadow
                    from: 1
                    to: 0.5
                    easing.type: Easing.OutExpo
                    duration: 300
                }
            }
            ParallelAnimation {
                PropertyAnimation {
                    property: "y"
                    target: smiley
                    from: smiley.maxHeight
                    to: smiley.minHeight
                    easing.type: Easing.OutBounce
                    duration: 1000
                }
                PropertyAnimation {
                    property: "scale"
                    target: shadow
                    from: 0.5
                    to: 1
                    easing.type: Easing.OutBounce
                    duration: 1000
                }
            }
        }
        running: false
    }

    SequentialAnimation {
        id: renderThreadAnim
        SequentialAnimation {
            ParallelAnimation {
                YAnimator {
                    target: smiley
                    from: smiley.minHeight
                    to: smiley.maxHeight
                    easing.type: Easing.OutExpo
                    duration: 300
                }
                ScaleAnimator {
                    target: shadow
                    from: 1
                    to: 0.5
                    easing.type: Easing.OutExpo
                    duration: 300
                }
            }
            ParallelAnimation {
                YAnimator {
                    target: smiley
                    from: smiley.maxHeight
                    to: smiley.minHeight
                    easing.type: Easing.OutBounce
                    duration: 1000
                }
                ScaleAnimator {
                    target: shadow
                    from: 0.5
                    to: 1
                    easing.type: Easing.OutBounce
                    duration: 1000
                }
            }
        }
        running: false
    }

    Image {
        id: shadow
        anchors.horizontalCenter: parent.horizontalCenter
        y: smiley.minHeight + smiley.height
        source: "qrc:/shadow.png"
    }

    Image {
        id: smiley
        property int maxHeight: window.height / 3
        property int minHeight: 2 * window.height / 3

        anchors.horizontalCenter: parent.horizontalCenter
        y: minHeight
        source: "qrc:/face-smile.png"
    }

    Text {
        text: "click left for plain animation, right for render thread Animators, middle to sleep for 2 sec on the main (gui) thread"
        color: "white"
    }

    Text {
        text: plainAnim.running ? "NORMAL ANIMATION" : (renderThreadAnim.running ? "RENDER THREAD ANIMATION" : "NO ANIMATION")
        color: "red"
        font.pointSize: 20
        anchors.bottom: parent.bottom
    }

    MouseArea {
        anchors.fill: parent
        acceptedButtons: Qt.AllButtons
        onClicked: if (mouse.button === Qt.LeftButton) {
                       renderThreadAnim.running = false;
                       plainAnim.running = true;
                   } else if (mouse.button === Qt.RightButton) {
                       plainAnim.running = false;
                       renderThreadAnim.running = true;
                   } else if (mouse.button === Qt.MiddleButton) {
                       helper.sleep(2000);
                   }
    }
}