Pie Menu Simple Example

vrcomputing

Hi,

can someone please help me fix this error message:

Starte C:\Users\Rick\Documents\build-Custom-Desktop_Qt_5_10_0_MSVC2017_64bit-Debug\debug\Custom.exe...
QML debugging is enabled. Only use this in a safe environment.
QQmlApplicationEngine failed to load component
qrc:/main.qml:15 Cannot assign object to list property "menuItems"

main.qml:

import QtQuick 2.9
import QtQuick.Controls 2.2
import QtQuick.Window 2.2
import QtQuick.Extras 1.4

Window {
    visible: true
    width: 640
    height: 480
    title: qsTr("Hello World")

    PieMenu {
        id: pieMenu

        MenuItem {
            text: "Action 1"
            onTriggered: print("Action 1")
        }
        MenuItem {
            text: "Action 2"
            onTriggered: print("Action 2")
        }
        MenuItem {
            text: "Action 3"
            onTriggered: print("Action 3")
        }
    }
}

Examle from: https://doc.qt.io/archives/qt-5.10/qml-qtquick-extras-piemenu.html#populating-the-menu

Custom.pro:

# depend on your compiler). Please consult the documentation of the
# deprecated API in order to know how to port your code away from it.
DEFINES += QT_DEPRECATED_WARNINGS

# You can also make your code fail to compile if you use deprecated APIs.
# In order to do so, uncomment the following line.
# You can also select to disable deprecated APIs only up to a certain version of Qt.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0

SOURCES += \
        main.cpp

RESOURCES += qml.qrc

# Additional import path used to resolve QML modules in Qt Creator's code model
QML_IMPORT_PATH =

# Additional import path used to resolve QML modules just for Qt Quick Designer
QML_DESIGNER_IMPORT_PATH =

# Default rules for deployment.
qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target

main.cpp:

#include <QGuiApplication>
#include <QQmlApplicationEngine>

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

    QGuiApplication app(argc, argv);

    QQmlApplicationEngine engine;
    engine.load(QUrl(QStringLiteral("qrc:/main.qml")));
    if (engine.rootObjects().isEmpty())
        return -1;

    return app.exec();
}

After 2 hours I still couldn't fix it although it is a simple example.

System: Windows 10 x64, MSVC2017, Qt 5.10.0

Thank you all and sorry for this beginner question.

Greetings,

Rick

PS: I also tried QML lists ([MenuItem{...}, MenuItem{...}]) and repeaters. Same error message.

KillerSmath

The problem is that MenuItem is member of QtQuick.Controls 1.* module and you are importing QtQuick.control 2.2.

https://doc.qt.io/archives/qt-5.10/qml-qtquick-controls-menuitem.html

The below code solve your problem:

import QtQuick 2.9
//import QtQuick.Controls 2.2
import QtQuick.Controls 1.4
import QtQuick.Window 2.2
import QtQuick.Extras 1.4

Nominate our 2022 Qt Champions!

Pie Menu Simple Example