- Qt 5.3
- Qt Multimedia
- QML Camera Example
- CameraPropertyButton.qml Example File
- Qt 5.3.2 Reference Documentation

# CameraPropertyButton.qml Example File

declarative-camera/CameraPropertyButton.qml

    /****************************************************************************
    **
    ** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
    ** Contact: http://www.qt-project.org/legal
    **
    ** 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
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    **     of its contributors may be used to endorse or promote products derived
    **     from this software without specific prior written permission.
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    import QtQuick 2.0
    import QtMultimedia 5.0

    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 }
                },

                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"
            }
        }
    }