Question

目前我有一个在QML中定义的ListModel，每个ListElement中有许多不同的Fields。代表根据“myType”值以不同方式做出反应。

ListView {
        id: createLocalGameViewList
        anchors.fill: parent
        model: ListModel {
            id: createLocalGameViewModel
            ListElement {
                myId: "comboBox_NumberOfPlayers"
                myTitle: qsTr("Number of players")
                myType: "ComboBox"
                myValuesList: [
                    ListElement { value: "10" },
                    ListElement { value: "9" },
                    ListElement { value: "8" },
                    ListElement { value: "7" },
                    ListElement { value: "6" },
                    ListElement { value: "5" },
                    ListElement { value: "4" },
                    ListElement { value: "3" },
                    ListElement { value: "2" }
                ]
                myValueIsIndex: false
                myValue: ""
            }
            ListElement {
                myId: "spinBox_StartCash"
                myTitle: qsTr("Start cash")
                myType: "SpinBox"
                myMaxValue: "1000000"
                myMinValue: "1000"
                myPrefix: "$"
                myValue: ""
            }
            ListElement {
                myId: "spinBox_StartBlind"
                myTitle: qsTr("Start blind")
                myType: "SpinBox"
                myMaxValue: "20000"
                myMinValue: "5"
                myPrefix: "$"
                myValue: ""
            }                
            ListElement {
                myId: "selector_BlindsRaiseInterval"
                myTitle: qsTr("Blinds raise interval")
                myType: "BlindsRaiseInterval"
                myRaiseOnHandsType: "" //if false it is raise on minutes type
                myRaiseOnHandsInterval: ""
                myRaiseOnMinutesInterval: ""
            }
            ListElement {
                myId: "selector_BlindsRaiseMode"
                myTitle: qsTr("Blinds raise mode")
                myType: "BlindsRaiseMode"
                myAlwaysDoubleBlinds: "" //if false it is "Manual Blinds Order"
                myManualBlindsList: []
                myAfterMBAlwaysDoubleBlinds: ""
                myAfterMBAlwaysRaiseAbout: ""
                myAfterMBAlwaysRaiseValue: ""
                myAfterMBStayAtLastBlind: ""
            }
            ListElement {
                myId: "comboBox_GameSpeed"
                myTitle: qsTr("Game speed")
                myType: "ComboBox"
                myValuesList: [
                    ListElement { value: "11" },
                    ListElement { value: "10" },
                    ListElement { value: "9" },
                    ListElement { value: "8" },
                    ListElement { value: "7" },
                    ListElement { value: "6" },
                    ListElement { value: "5" },
                    ListElement { value: "4" },
                    ListElement { value: "3" },
                    ListElement { value: "2" },
                    ListElement { value: "1" }
                ]
                myValue: ""
                myValueIsIndex: false
            }

当ListView组件完成后，我从一个名为“Config”的C ++类中读取了一些配置值。

            Component.onCompleted: {
                //set Config Values from config file
                createLocalGameViewModel.setProperty(0, "myValue", Config.readConfigIntString("NumberOfPlayers"));
                createLocalGameViewModel.setProperty(1, "myValue", Config.readConfigIntString("StartCash"));
                createLocalGameViewModel.setProperty(2, "myValue", Config.readConfigIntString("FirstSmallBlind"));
                createLocalGameViewModel.setProperty(3, "myRaiseOnHandsType", Config.readConfigIntString("RaiseBlindsAtHands"));
                createLocalGameViewModel.setProperty(3, "myRaiseOnHandsInterval", Config.readConfigIntString("RaiseSmallBlindEveryHands"));
                createLocalGameViewModel.setProperty(3, "myRaiseOnMinutesInterval", Config.readConfigIntString("RaiseSmallBlindEveryMinutes"));
                createLocalGameViewModel.setProperty(4, "myAlwaysDoubleBlinds", Config.readConfigIntString("AlwaysDoubleBlinds"));

                var tempList = Config.readConfigIntStringList("ManualBlindsList");
                for(var i=0; i < tempList.length; i++) {
                    createLocalGameViewModel.get(4).myManualBlindsList.append({"blindValue": tempList[i].toString()})
                }

                createLocalGameViewModel.setProperty(4, "myAfterMBAlwaysDoubleBlinds", Config.readConfigIntString("AfterMBAlwaysDoubleBlinds"));
                createLocalGameViewModel.setProperty(4, "myAfterMBAlwaysRaiseAbout", Config.readConfigIntString("AfterMBAlwaysRaiseAbout"));
                createLocalGameViewModel.setProperty(4, "myAfterMBAlwaysRaiseValue", Config.readConfigIntString("AfterMBAlwaysRaiseValue"));
                createLocalGameViewModel.setProperty(4, "myAfterMBStayAtLastBlind", Config.readConfigIntString("AfterMBStayAtLastBlind"));
                createLocalGameViewModel.setProperty(5, "myValue", Config.readConfigIntString("GameSpeed"));
            }

当listView完成后，我需要将编辑过的数据传递给C ++。所以我意识到这不是在QML中构建模型的最佳方式。所以我打算用C ++创建模型，但我以前从未这样做过。所以我的问题是：哪种模型结构最适合这个用例，但设置不是太复杂？

还有另一个不太难看的方法将数据从QML模型放到c ++上下文中吗？

Answer 1

在Qt中创建强大数据模型的好方法是使用QAbstractItemModel（http://doc.qt.io/qt-5/qabstractitemmodel.html）我创建了一个Qt / QML插件库，你可以基于：https://github.com/ThomArmax/QtArmax

有关更多实施信息，请参阅https://github.com/ThomArmax/QtArmax/tree/develop/src/core/datamodels

QML - 实现C ++ ListModel的最佳方式

1 个答案: