examples/declarative/connections/connections-example.qml


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import Qt 4.7
import "content"

Rectangle {
    id: window

    property int angle: 0

    width: 640; height: 480
    color: "#646464"

    Image {
        id: image
        source: "content/bg1.jpg"
        anchors.centerIn: parent
        transformOrigin: Item.Center
        rotation: window.angle

        Behavior on rotation {
            NumberAnimation { easing.type: "OutCubic"; duration: 300 }
        }
    }

    Button {
        id: leftButton
        image: "content/rotate-left.png"
        anchors { left: parent.left; bottom: parent.bottom; leftMargin: 10; bottomMargin: 10 }
    }

    Button {
        id: rightButton
        image: "content/rotate-right.png"
        anchors { right: parent.right; bottom: parent.bottom; rightMargin: 10; bottomMargin: 10 }
    }

    Connections { target: leftButton; onClicked: window.angle -= 90 }
    Connections { target: rightButton; onClicked: window.angle += 90 }
}