Stran o programu

Informacije o vaši aplikaciji

Spletna stran Kirigami.AboutPage vam omogoča, da imate stran, ki prikazuje obvestilo o avtorski pravici aplikacije skupaj z navedbo avtorjev prispevkov in nekaterih informacij, na kateri platformi se izvaja.

Najprej bomo uredili svojo datoteko main.cpp iz prejšnjih vaj.

main.cpp

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#include <QApplication>
#include <QQmlApplicationEngine>
#include <QtQml>
#include <QUrl>
#include <KAboutData>
#include <KLocalizedContext>
#include <KLocalizedString>

int main(int argc, char *argv[])
{
    QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);

    QApplication app(argc, argv);

    KLocalizedString::setApplicationDomain("helloworld");
    QCoreApplication::setOrganizationName(QStringLiteral("KDE"));
    QCoreApplication::setOrganizationDomain(QStringLiteral("kde.org"));
    QCoreApplication::setApplicationName(QStringLiteral("Hello World"));

    if (qEnvironmentVariableIsEmpty("QT_QUICK_CONTROLS_STYLE")) {
        QQuickStyle::setStyle(QStringLiteral("org.kde.desktop"));
    }

    KAboutData aboutData(
        QStringLiteral("helloworld"),
        i18nc("@title", "Hello World"),
        QStringLiteral("1.0"),
        i18n("Hello world application"),
        KAboutLicense::GPL,
        i18n("(c) 2021"));

    aboutData.addAuthor(
        i18nc("@info:credit", "Your name"),
        i18nc("@info:credit", "Author Role"),
        QStringLiteral("your@email.com"),
        QStringLiteral("https://yourwebsite.com"));

    // Set aboutData as information about the app
    KAboutData::setApplicationData(aboutData);

    // Register a singleton that will be accessible from QML.
    qmlRegisterSingletonType(
        "org.kde.example", // How the import statement should look like
        1, 0, // Major and minor versions of the import
        "About", // The name of the QML object
        [](QQmlEngine* engine, QJSEngine *) -> QJSValue {
            // Here we retrieve our aboutData and give it to the QML engine
            // to turn it into a QML type
            return engine->toScriptValue(KAboutData::applicationData());
        }
    );

    // Load an application from a QML file
    QQmlApplicationEngine engine;

    engine.rootContext()->setContextObject(new KLocalizedContext(&engine));
    engine.load(QUrl(QStringLiteral("qrc:/main.qml")));

    if (engine.rootObjects().isEmpty()) {
        return -1;
    }

    return app.exec();
}

V datoteko main.cpp vključimo KAboutData , jedrno komponento Ogrodja KDE, ki shrani informacije o aplikaciji. Te informacije lahko nato ponovno uporabijo številne druge komponente Ogrodja KDE. Nov predmet aboutData iniciramo z dokaj popolnim privzetim konstruktorjem in dodamo informacije o avtorju.

Ko so vsi zahtevani podatki nastavljeni, pokličemo KAboutData::setApplicationData za inicializacijo lastnosti predmeta QApplication.

Nato ustvarimo qmlRegisterSingletonType() . To je uporabljeno za uvoz kode C++ kot modula v naši main.qml z import org.kde.example 1.0.

Njen prvi argument je URI, ki bo uporabljen za uvoz, drugi in tretji argumenti sta glavna in manjša različica, četrta je ime vrste, nato ime, ki ga bomo poklicali pri dostopu vrste About in zadnje je sklicevanje na objekt C++, ki je izpostavljen do QML. V slednjem primeru uporabljamo lambda, da postavimo `AboutData" v prostor naše aplikacije.

main.qml

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import QtQuick
import QtQuick.Layouts
import QtQuick.Controls as Controls
import org.kde.kirigami as Kirigami

import org.kde.example 1.0

Kirigami.ApplicationWindow {
    id: root

    title: i18nc("@title:window", "Day Kountdown")

    globalDrawer: Kirigami.GlobalDrawer {
        isMenu: true
        actions: [
            Kirigami.Action {
                text: i18n("Quit")
                icon.name: "gtk-quit"
                shortcut: StandardKey.Quit
                onTriggered: Qt.quit()
            },

            Kirigami.Action { // <==== Action to open About page
                text: i18n("About")
                icon.name: "help-about"
                onTriggered: pageStack.layers.push(aboutPage)
            }
        ]
    }

    Component { // <==== Component that instantiates the Kirigami.AboutPage
        id: aboutPage

        Kirigami.AboutPage {
            aboutData: About
        }
    }

    ListModel {
        id: kountdownModel
    }

    AddEditSheet {
        id: addEditSheet
        onAdded: kountdownModel.append({
            "name": name,
            "description": description,
            "date": Date.parse(kdate)
        });
        onEdited: kountdownModel.set(index, {
            "name": name,
            "description": description,
            "date": Date.parse(kdate)
        });
        onRemoved: kountdownModel.remove(index, 1)
    }

    function openPopulatedSheet(mode, index = -1, listName = "", listDesc = "", listDate = "") {
        addEditSheet.mode = mode
        addEditSheet.index = index;
        addEditSheet.name = listName
        addEditSheet.description = listDesc
        addEditSheet.kdate = listDate

        addEditSheet.open()
    }


    pageStack.initialPage: Kirigami.ScrollablePage {
        title: i18nc("@title", "Kountdown")

        actions: [
            Kirigami.Action {
                id: addAction
                icon.name: "list-add"
                text: i18nc("@action:button", "Add kountdown")
                onTriggered: openPopulatedSheet("add")
            }
        ]

        Kirigami.CardsListView {
            id: layout
            model: kountdownModel
            delegate: KountdownDelegate {}
        }
    }
}

Najprej uporabimo uvoz, ki smo ga določili v datoteki main.cpp, in sicer org.kde.example. Nato dodamo Kirigami.Action v naš global drawer ki nas bo poslala na stran About in v njej ustvarila komponento Kirigami.AboutPage , ki pričakuje predmet KAboutData::applicationData() . Izpostavili smo točno to v naši datoteki main.cpp in jo poimenovali About, tako, da jo lahko prenesemo sem.

CMakeLists

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cmake_minimum_required(VERSION 3.16)
project(helloworld)

find_package(ECM REQUIRED NO_MODULE)

set(CMAKE_MODULE_PATH ${ECM_MODULE_PATH})

include(KDEInstallDirs)
include(KDECMakeSettings)
include(KDECompilerSettings NO_POLICY_SCOPE)

find_package(Qt6 REQUIRED NO_MODULE COMPONENTS
    Core
    Quick
    Test
    Gui
    QuickControls2
    Widgets
)

find_package(KF6 REQUIRED COMPONENTS
    Kirigami2
    I18n
    CoreAddons
)

add_subdirectory(src)

feature_summary(WHAT ALL INCLUDE_QUIET_PACKAGES FATAL_ON_MISSING_REQUIRED_PACKAGES)

V datoteki CMakeLists.txt v mapi najvišjega nivoja, preverite da imate CoreAddons v vašem klicu find_package(). Je potreben za KAboutData .

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add_executable(helloworld)

target_sources(helloworld PRIVATE
    main.cpp
    resources.qrc
)

target_link_libraries(helloworld
    Qt6::Quick
    Qt6::Qml
    Qt6::Gui
    Qt6::QuickControls2
    Qt6::Widgets
    KF6::Kirigami2
    KF6::I18n
    KF6::CoreAddons
)

V datoteki CMakeLists.txt file v mapi src/, ni potrebno ničesar, saj smo postavili aboutData na pravo mesto.

Zagon aplikacije

Če zaženete aplikacijo in sprožite dejanje »O programu« v globalnem predalu, bi morali videti našo stran o programu.

![Posnetek zaslona strani o programu Kirigami] (o strani.png)