- Qt 5.5
- Qt Quick Extras
- Qt Quick Extras - Gallery
- PieMenuControlView.qml Example File
- Qt 5.5.1 Reference Documentation

# PieMenuControlView.qml Example File

gallery/qml/PieMenuControlView.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.
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    **     notice, this list of conditions and the following disclaimer in
    **     the documentation and/or other materials provided with the
    **     distribution.
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    **     contributors may be used to endorse or promote products derived
    **     from this software without specific prior written permission.
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    **
    ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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    import QtQuick 2.2
    import QtGraphicalEffects 1.0
    import QtQuick.Controls 1.1
    import QtQuick.Extras 1.4

    Rectangle {
        id: view
        color: customizerItem.currentStyleDark ? "#111" : "#555"

        Behavior on color {
            ColorAnimation {}
        }

        Keys.onReleased: {
            if (event.key === Qt.Key_Back) {
                stackView.pop();
                event.accepted = true;
            }
        }

        property bool darkBackground: true

        property Component mouseArea

        property Component customizer: Item {
            property alias currentStylePath: stylePicker.currentStylePath
            property alias currentStyleDark: stylePicker.currentStyleDark

            StylePicker {
                id: stylePicker
                currentIndex: 0
                width: Math.round(Math.max(textSingleton.implicitHeight * 6 * 2, parent.width * 0.5))
                anchors.centerIn: parent

                model: ListModel {
                    ListElement {
                        name: "Default"
                        path: "PieMenuDefaultStyle.qml"
                        dark: false
                    }
                    ListElement {
                        name: "Dark"
                        path: "PieMenuDarkStyle.qml"
                        dark: true
                    }
                }
            }
        }

        property alias controlItem: pieMenu
        property alias customizerItem: customizerLoader.item

        Item {
            id: controlBoundsItem
            width: parent.width
            height: parent.height - toolbar.height
            visible: customizerLoader.opacity === 0

            Image {
                id: bgImage
                anchors.centerIn: parent
                height: 48
                Text {
                    id: bgLabel
                    anchors.top: parent.bottom
                    anchors.topMargin: 20
                    anchors.horizontalCenter: parent.horizontalCenter
                    text: "Tap to open"
                    color: "#999"
                    font.pointSize: 20
                }
            }

            MouseArea {
                id: touchArea
                anchors.fill: parent
                onClicked: pieMenu.popup(touchArea.mouseX, touchArea.mouseY)
            }

            PieMenu {
                id: pieMenu
                triggerMode: TriggerMode.TriggerOnClick
                width: Math.min(controlBoundsItem.width, controlBoundsItem.height) * 0.5
                height: width

                style: Qt.createComponent(customizerItem.currentStylePath)

                MenuItem {
                    text: "Zoom In"
                    onTriggered: {
                        bgImage.source = iconSource
                        bgLabel.text = text + " selected"
                    }
                    iconSource: "qrc:/images/zoom_in.png"
                }
                MenuItem {
                    text: "Zoom Out"
                    onTriggered: {
                        bgImage.source = iconSource
                        bgLabel.text = text + " selected"
                    }
                    iconSource: "qrc:/images/zoom_out.png"
                }
                MenuItem {
                    text: "Info"
                    onTriggered: {
                        bgImage.source = iconSource
                        bgLabel.text = text + " selected"
                    }
                    iconSource: "qrc:/images/info.png"
                }
            }
        }
        Loader {
            id: customizerLoader
            sourceComponent: customizer
            opacity: 0
            anchors.left: parent.left
            anchors.right: parent.right
            anchors.leftMargin: 30
            anchors.rightMargin: 30
            y: parent.height / 2 - height / 2 - toolbar.height
            visible: customizerLoader.opacity > 0

            property alias view: view

            Behavior on y {
                NumberAnimation {
                    duration: 300
                }
            }

            Behavior on opacity {
                NumberAnimation {
                    duration: 300
                }
            }
        }

        ControlViewToolbar {
            id: toolbar

            onCustomizeClicked: {
                customizerLoader.opacity = customizerLoader.opacity == 0 ? 1 : 0;
            }
        }
    }