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//![0]
import Qt 4.7

Rectangle {
    id: myRect
    width: 100; height: 100
    color: "black"

    MouseArea { 
        id: mouseArea
        anchors.fill: parent 
        onClicked: myRect.state == 'clicked' ? myRect.state = "" : myRect.state = 'clicked';
    }

    states: [
        State {
            name: "clicked"
            PropertyChanges { target: myRect; color: "red" }
        }
    ]
}
//![0]