qwidgets.qml Example File

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 import Qt 4.7
 import "QWidgets" 1.0

 Rectangle {
     id: window

     property int margin: 30

     width: 640; height: 480
     color: palette.window

     SystemPalette { id: palette }

     MyPushButton {
         id: button1
         x: margin; y: margin
         text: "Right"
         transformOriginPoint: Qt.point(width / 2, height / 2)

         onClicked: window.state = "right"
     }

     MyPushButton {
         id: button2
         x: margin; y: margin + 30
         text: "Bottom"
         transformOriginPoint: Qt.point(width / 2, height / 2)

         onClicked: window.state = "bottom"
     }

     MyPushButton {
         id: button3
         x: margin; y: margin + 60
         text: "Quit"
         transformOriginPoint: Qt.point(width / 2, height / 2)

         onClicked: Qt.quit()
     }

     states: [
         State {
             name: "right"
             PropertyChanges { target: button1; x: window.width - width - margin; text: "Left"; onClicked: window.state = "" }
             PropertyChanges { target: button2; x: window.width - width - margin }
             PropertyChanges { target: button3; x: window.width - width - margin }
             PropertyChanges { target: window; color: Qt.darker(palette.window) }
         },
         State {
             name: "bottom"
             PropertyChanges { target: button1; y: window.height - height - margin; rotation: 180 }
             PropertyChanges {
                 target: button2
                 x: button1.x + button1.width + 10; y: window.height - height - margin
                 rotation: 180
                 text: "Top"
                 onClicked: window.state = ""
             }
             PropertyChanges { target: button3; x: button2.x + button2.width + 10; y: window.height - height - margin;  rotation: 180 }
             PropertyChanges { target: window; color: Qt.lighter(palette.window) }
         }
     ]

     transitions: Transition {
         ParallelAnimation {
             NumberAnimation { properties: "x,y,rotation"; duration: 600; easing.type: Easing.OutQuad }
             ColorAnimation { target: window; duration: 600 }
         }
     }
 }