Qt Reference Documentation

ScrollBar.qml Example File

demos/declarative/flickr/common/ScrollBar.qml
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 import Qt 4.7

 Item {
     id: container

     property variant flickableArea

     Rectangle {
         radius: 5
         color: "black"
         opacity: 0.3
         border.color: "white"
         border.width: 2
         x: 0
         y: flickableArea.visibleArea.yPosition * container.height
         width: parent.width
         height: flickableArea.visibleArea.heightRatio * container.height
     }
     states: [
         State {
             name: "show"
             when: flickableArea.movingVertically
             PropertyChanges {
                 target: container
                 opacity: 1
             }
         }
     ]
     transitions: [
         Transition {
             from: "*"
             to: "*"
             NumberAnimation {
                 target: container
                 properties: "opacity"
                 duration: 400
             }
         }
     ]
 }
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