Qt Mobility Reference Documentation

CameraPropertyButton.qml Example File

declarative-camera/CameraPropertyButton.qml
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 import Qt 4.7
 import QtMultimediaKit 1.1

 Item {
     id: propertyButton
     property alias value : popup.currentValue
     property alias model : popup.model

     width : 144
     height: 70

     BorderImage {
         id: buttonImage
         source: "images/toolbutton.sci"
         width: propertyButton.width; height: propertyButton.height
     }

     CameraButton {
         anchors.fill: parent
         Image {
             anchors.centerIn: parent
             source: popup.currentItem.icon
         }

         onClicked: popup.toggle()
     }

     CameraPropertyPopup {
         id: popup
         anchors.right: parent.left
         anchors.rightMargin: 16
         anchors.top: parent.top
         state: "invisible"
         visible: opacity > 0

         currentValue: propertyButton.value

         states: [
             State {
                 name: "invisible"
                 PropertyChanges { target: popup; opacity: 0 }
                 PropertyChanges { target: camera; focus: true }
             },

             State {
                 name: "visible"
                 PropertyChanges { target: popup; opacity: 1.0 }
             }
         ]

         transitions: Transition {
             NumberAnimation { properties: "opacity"; duration: 100 }
         }

         function toggle() {
             if (state == "visible")
                 state = "invisible";
             else
                 state = "visible";
         }

         onSelected: {
             popup.state = "invisible"
         }
     }
 }
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