- Qt 5.5
- Qt Multimedia
- QML Camera Example
- VideoCaptureControls.qml Example File
- Qt 5.5.1 Reference Documentation

# VideoCaptureControls.qml Example File

declarative-camera/VideoCaptureControls.qml

    /****************************************************************************
    **
    ** Copyright (C) 2015 The Qt Company Ltd.
    ** Contact: http://www.qt.io/licensing/
    **
    ** This file is part of the examples of the Qt Toolkit.
    **
    ** $QT_BEGIN_LICENSE:BSD$
    ** You may use this file under the terms of the BSD license as follows:
    **
    ** "Redistribution and use in source and binary forms, with or without
    ** modification, are permitted provided that the following conditions are
    ** met:
    **   * Redistributions of source code must retain the above copyright
    **     notice, this list of conditions and the following disclaimer.
    **   * Redistributions in binary form must reproduce the above copyright
    **     notice, this list of conditions and the following disclaimer in
    **     the documentation and/or other materials provided with the
    **     distribution.
    **   * Neither the name of The Qt Company Ltd nor the names of its
    **     contributors may be used to endorse or promote products derived
    **     from this software without specific prior written permission.
    **
    **
    ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
    ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
    ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
    ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
    **
    ** $QT_END_LICENSE$
    **
    ****************************************************************************/

    import QtQuick 2.0
    import QtMultimedia 5.4

    FocusScope {
        property Camera camera
        property bool previewAvailable : false

        property int buttonsPanelWidth: buttonPaneShadow.width

        signal previewSelected
        signal photoModeSelected
        id : captureControls

        Rectangle {
            id: buttonPaneShadow
            width: bottomColumn.width + 16
            height: parent.height
            anchors.top: parent.top
            anchors.right: parent.right
            color: Qt.rgba(0.08, 0.08, 0.08, 1)

            Column {
                anchors {
                    right: parent.right
                    top: parent.top
                    margins: 8
                }

                id: buttonsColumn
                spacing: 8

                FocusButton {
                    camera: captureControls.camera
                    visible: camera.cameraStatus == Camera.ActiveStatus && camera.focus.isFocusModeSupported(Camera.FocusAuto)
                }

                CameraButton {
                    text: "Record"
                    visible: camera.videoRecorder.recorderStatus == CameraRecorder.LoadedStatus
                    onClicked: camera.videoRecorder.record()
                }

                CameraButton {
                    id: stopButton
                    text: "Stop"
                    visible: camera.videoRecorder.recorderStatus == CameraRecorder.RecordingStatus
                    onClicked: camera.videoRecorder.stop()
                }

                CameraButton {
                    text: "View"
                    onClicked: captureControls.previewSelected()
                    //don't show View button during recording
                    visible: camera.videoRecorder.actualLocation && !stopButton.visible
                }
            }

            Column {
                anchors {
                    bottom: parent.bottom
                    right: parent.right
                    margins: 8
                }

                id: bottomColumn
                spacing: 8

                CameraListButton {
                    model: QtMultimedia.availableCameras
                    onValueChanged: captureControls.camera.deviceId = value
                }

                CameraButton {
                    text: "Switch to Photo"
                    onClicked: captureControls.photoModeSelected()
                }

                CameraButton {
                    id: quitButton
                    text: "Quit"
                    onClicked: Qt.quit()
                }
            }
        }

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

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