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import Qt 4.7

Item {

    id: window

    width: 320; height: 480

    // Let's draw the sky...

    Rectangle {

        anchors { left: parent.left; top: parent.top; right: parent.right; bottom: parent.verticalCenter }

        gradient: Gradient {

            GradientStop { position: 0.0; color: "DeepSkyBlue" }

            GradientStop { position: 1.0; color: "LightSkyBlue" }

        }

    }

    // ...and the ground.

    Rectangle {

        anchors { left: parent.left; top: parent.verticalCenter; right: parent.right; bottom: parent.bottom }

        gradient: Gradient {

            GradientStop { position: 0.0; color: "ForestGreen" }

            GradientStop { position: 1.0; color: "DarkGreen" }

        }

    }

    // The shadow for the smiley face

    Image {

        anchors.horizontalCenter: parent.horizontalCenter

        y: smiley.minHeight + 58

        source: "images/shadow.png"

        // The scale property depends on the y position of the smiley face.

        scale: smiley.y * 0.5 / (smiley.minHeight - smiley.maxHeight)

    }

    Image {

        id: smiley

        property int maxHeight: window.height / 3

        property int minHeight: 2 * window.height / 3

        anchors.horizontalCenter: parent.horizontalCenter

        y: minHeight

        source: "images/face-smile.png"

        // Animate the y property. Setting loops to Animation.Infinite makes the

        // animation repeat indefinitely, otherwise it would only run once.

        SequentialAnimation on y {

            loops: Animation.Infinite

            // Move from minHeight to maxHeight in 300ms, using the OutExpo easing function

            NumberAnimation {

                from: smiley.minHeight; to: smiley.maxHeight

                easing.type: Easing.OutExpo; duration: 300

            }

            // Then move back to minHeight in 1 second, using the OutBounce easing function

            NumberAnimation {

                from: smiley.maxHeight; to: smiley.minHeight

                easing.type: Easing.OutBounce; duration: 1000

            }

            // Then pause for 500ms

            PauseAnimation { duration: 500 }

        }

    }

}