Qt Mobility Reference Documentation

CaptureControls.qml Example File

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

 FocusScope {
     property Camera camera
     property bool previewAvailable : false

     property alias whiteBalance : wbModesButton.value
     property alias flashMode : flashModesButton.value
     property alias exposureCompensation : exposureCompensationButton.value

     signal previewSelected
     id : captureControls

     Column {
         spacing : 8
         anchors.right : parent.right
         anchors.rightMargin: 8
         anchors.top : parent.top
         anchors.topMargin: 8

         FocusButton {
             camera: captureControls.camera
             visible: false
         }

         CameraButton {
             text: "Capture"
             onClicked: camera.captureImage()
         }

         CameraPropertyButton {
             id : flashModesButton
             value: Camera.FlashOff
             model: ListModel {
                 ListElement {
                     icon: "images/camera_flash_auto.png"
                     value: Camera.FlashAuto
                     text: "Auto"
                 }
                 ListElement {
                     icon: "images/camera_flash_off.png"
                     value: Camera.FlashOff
                     text: "Off"
                 }
                 ListElement {
                     icon: "images/camera_flash_fill.png"
                     value: Camera.FlashOn
                     text: "On"
                 }
                 ListElement {
                     icon: "images/camera_flash_redeye.png"
                     value: Camera.FlashRedEyeReduction
                     text: "Red Eye Reduction"
                 }
             }
         }

         CameraPropertyButton {
             id : wbModesButton
             value: Camera.WhiteBalanceAuto
             model: ListModel {
                 ListElement {
                     icon: "images/camera_auto_mode.png"
                     value: Camera.WhiteBalanceAuto
                     text: "Auto"
                 }
                 ListElement {
                     icon: "images/camera_white_balance_sunny.png"
                     value: Camera.WhiteBalanceSunlight
                     text: "Sunlight"
                 }
                 ListElement {
                     icon: "images/camera_white_balance_cloudy.png"
                     value: Camera.WhiteBalanceCloudy
                     text: "Cloudy"
                 }
                 ListElement {
                     icon: "images/camera_white_balance_incandescent.png"
                     value: Camera.WhiteBalanceIncandescent
                     text: "Incandescent"
                 }
                 ListElement {
                     icon: "images/camera_white_balance_flourescent.png"
                     value: Camera.WhiteBalanceFluorescent
                     text: "Fluorescent"
                 }
             }
         }

         ExposureCompensationButton {
             id : exposureCompensationButton
         }

         CameraButton {
             text: "View"
             onClicked: captureControls.previewSelected()
             visible: captureControls.previewAvailable
         }
     }

     CameraButton {
         id: quitButton
         anchors.right : parent.right
         anchors.rightMargin: 8
         anchors.bottom : parent.bottom
         anchors.bottomMargin: 8
         text: "Quit"
         onClicked: Qt.quit()
     }

     Item {
         id: exposureDetails
         anchors.bottom : parent.bottom
         anchors.left : parent.left
         anchors.bottomMargin: 16
         anchors.leftMargin: 16
         height: childrenRect.height
         width: childrenRect.width

         visible : camera.lockStatus == Camera.Locked

         Rectangle {
             opacity: 0.4
             color: "black"
             anchors.fill: parent
         }

         Row {
             spacing : 16

             Text {
                 text: "Av: "+camera.aperture.toFixed(1)
                 font.pixelSize: 18
                 color: "white"
                 visible: camera.aperture > 0
             }

             Text {
                 font.pixelSize: 18
                 color: "white"
                 visible: camera.shutterSpped > 0
                 text: "Tv: "+printableExposureTime(camera.shutterSpeed)

                 function printableExposureTime(t) {
                     if (t > 3.9)
                         return "Tv: "+t.toFixed() + "\"";

                     if (t > 0.24 )
                         return "Tv: "+t.toFixed(1) + "\"";

                     if (t > 0)
                         return "Tv: 1/"+(1/t).toFixed();

                     return "";
                 }
             }

             Text {
                 text: "ISO: "+camera.iso.toFixed()
                 font.pixelSize: 18
                 color: "white"
                 visible: camera.iso > 0
             }
         }
     }

     ZoomControl {
         x : 0
         y : 0
         width : 100
         height: parent.height

         currentZoom: camera.digitalZoom
         maximumZoom: Math.min(4.0, camera.maximumDigitalZoom)
         onZoomTo: camera.setDigitalZoom(value)
     }
 }
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