Qt 4.8: Menu.qml Example File (demos/mobile/quickhit/Menu.qml)

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# Menu.qml Example File

demos/mobile/quickhit/Menu.qml

     /****************************************************************************
     **
     ** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
     ** Contact: http://www.qt-project.org/legal
     **
     ** This file is part of the QtDeclarative module 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 Digia Plc and its Subsidiary(-ies) 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 1.0
     import "Game.js" as GameScript

     Rectangle {
         id: menu

         Text {
             id: title
             smooth: true
             anchors.bottom: menu.top
             anchors.horizontalCenter: menu.horizontalCenter
             color: "red"
             font.pixelSize:  gameArea.width / 12
             font.bold: true
             horizontalAlignment: Text.AlignHCenter
         }

         border.color: "black"
         border.width: 2
         radius: 8
         smooth: true
         opacity: 0 // transparent by default

         color: "black"
     //    gradient: Gradient {
     //        GradientStop { position: 0.0; color: "white" }
     //        GradientStop { position: 1.0; color: "black" }
     //    }

         // Signals
         signal levelSelected(int levelIndex)
         signal resumeSelected()

         // Show level menu
         function showLevelMenu() {
             menuData.clear()
             title.text = "Select Your Level"
             var plugins = GameEngine.pluginList()
             for (var i = 0; i < plugins.length; i++) {
                 menuData.append({"name": plugins[i],"type":"0"})
             }
             menuData.append({"name": "About","type":"4"})
             menuData.append({"name": "Exit","type":"1"})
             menu.opacity = 0.8
             listView.focus = true
         }

         function showPauseMenu() {
             menuData.clear()
             title.text = "Resume level?"
             menuData.append({"name": "Resume","type":"2"})
             menuData.append({"name": "End Game","type":"3"})
             menu.opacity = 0.8
             listView.focus = true
         }

         // Hide menu
         function hideMenu() {
             menu.opacity = 0
             listView.focus = false
         }

         function menuItemSelected(index, type) {
             switch (type) {
             case "0": {
                     // Level selection
                     menu.levelSelected(index)
                     break;
                 }
             case "1": {
                     // Exit
                     Qt.quit()
                     break;
                 }
             case "2": {
                     // Resume
                     menu.resumeSelected()
                     break;
                 }
             case "3": {
                     // End Game
                     gameArea.endGame()
                     break;
                 }
             case "4": {
                     // Show about
                     gameArea.messageBox.showInfoMessage()
                     break;
                 }
             default: {
                     break;
                 }
             }
         }

         ListModel {
             id: menuData
         }

         ListView {
             id: listView
             clip: true
             anchors.fill: parent
             keyNavigationWraps: true

             function doSelect() {
                 menu.menuItemSelected(listView.currentIndex,menuData.get(listView.currentIndex).type)
             }

             model: menuData

             delegate: MenuItem {
                 id: menuItem
                 selectedItem: menuItem.ListView.isCurrentItem ? true : false
                 onItemSelected: {
                     listView.currentIndex = model.index
                     listView.doSelect()
                 }

             }
         }
     }