/****************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** BSD License Usage
** Alternatively, 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 2.7
import QtQuick.Controls 2.1 as QQC2
import "Style"

PathView {
    id: circularView

    signal launched(string page)

    readonly property int cX: width / 2
    readonly property int cY: height / 2
    readonly property int itemSize: size / 4
    readonly property int size: Math.min(width - 80, height)
    readonly property int radius: size / 2 - itemSize / 3

    snapMode: PathView.SnapToItem

    model: ListModel {
        ListElement {
            title: qsTr("World Clock")
            icon: "worldclock"
            page: "WorldClock/WorldClockPage.qml"
        }
        ListElement {
            title: qsTr("Navigation")
            icon: "navigation"
            page: "Navigation/NavigationPage.qml"
        }
        ListElement {
            title: qsTr("Weather")
            icon: "weather"
            page: "Weather/WeatherPage.qml"
        }
        ListElement {
            title: qsTr("Fitness")
            icon: "fitness"
            page: "Fitness/FitnessPage.qml"
        }
        ListElement {
            title: qsTr("Notifications")
            icon: "notifications"
            page: "Notifications/NotificationsPage.qml"
        }
        ListElement {
            title: qsTr("Alarm")
            icon: "alarms"
            page: "Alarms/AlarmsPage.qml"
        }
        ListElement {
            title: qsTr("Settings")
            icon: "settings"
            page: "Settings/SettingsPage.qml"
        }
    }

    delegate: QQC2.RoundButton {
        width: circularView.itemSize
        height: circularView.itemSize

        property string title: model.title

        icon.width: 36
        icon.height: 36
        icon.name: model.icon
        opacity: PathView.itemOpacity
        padding: 12

        background: Rectangle {
            radius: width / 2
            border.width: 3
            border.color: parent.PathView.isCurrentItem ? UIStyle.colorQtPrimGreen : UIStyle.colorQtGray4
        }

        onClicked: {
            if (PathView.isCurrentItem)
                circularView.launched(Qt.resolvedUrl(page))
            else
                circularView.currentIndex = index
        }
    }

    path: Path {
        startX: circularView.cX
        startY: circularView.cY
        PathAttribute {
            name: "itemOpacity"
            value: 1.0
        }
        PathLine {
            x: circularView.cX + circularView.radius
            y: circularView.cY
        }
        PathAttribute {
            name: "itemOpacity"
            value: 0.7
        }
        PathArc {
            x: circularView.cX - circularView.radius
            y: circularView.cY
            radiusX: circularView.radius
            radiusY: circularView.radius
            useLargeArc: true
            direction: PathArc.Clockwise
        }
        PathAttribute {
            name: "itemOpacity"
            value: 0.5
        }
        PathArc {
            x: circularView.cX + circularView.radius
            y: circularView.cY
            radiusX: circularView.radius
            radiusY: circularView.radius
            useLargeArc: true
            direction: PathArc.Clockwise
        }
        PathAttribute {
            name: "itemOpacity"
            value: 0.3
        }
    }

    Text {
        id: appTitle

        property Item currentItem: circularView.currentItem

        visible: currentItem ? currentItem.PathView.itemOpacity === 1.0 : 0

        text: currentItem ? currentItem.title : ""
        anchors.centerIn: parent
        anchors.verticalCenterOffset: (circularView.itemSize + height) / 2

        font.bold: true
        font.pixelSize: circularView.itemSize / 3
        font.letterSpacing: 1
        color: UIStyle.colorQtGray1
    }
}
