PieMenuControlView.qml Example File

gallery/qml/PieMenuControlView.qml
 /****************************************************************************
 **
 ** Copyright (C) 2016 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 2.2
 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;
         }
     }
 }