@Ronak5 no, I didn't. that's probably not the problem any current test is trying to share a bool with QML and the problem is the same. but I'll remember to try it when sharing a string :)
So here is a simpler project and use a Singleton. One of the problem was that I have to declare my object in the QML when using qmlRegisterType. And I don't want to. So here is the new code, the error is the same.
I followed the example of the doc here https://doc.qt.io/qt-5/qtqml-cppintegration-definetypes.html
miniModel.h (the singleton)
#ifndef _MINIMODEL_H_
#define _MINIMODEL_H_
#include <stdlib.h>
#include <stdio.h>
#include <iostream>
#include <string>
#include <QtGui/qguiapplication.h>
#include <QtQml/qqmlcontext.h>
#include <QtQml/qqmlapplicationengine.h>
#include <QtCore/qdebug.h>
#include <QtCore/qobject.h>
#include <QtCore/qvariant.h>
class MiniModel : public QObject
{
Q_OBJECT
Q_PROPERTY(bool miniboule READ miniboule WRITE setMiniboule NOTIFY minibouleChanged)
public:
MiniModel();
bool miniboule();
void setMiniboule(bool bouboule);
signals:
void minibouleChanged();
private:
bool m_miniboule;
};
#endif
main.cpp v1 : singleton using a QObject
#include "miniModel.h"
//defining a miniModel instance as a singleton
static QObject* mp_singleton(QQmlEngine* engine, QJSEngine* scriptEngine)
{
Q_UNUSED(engine)
Q_UNUSED(scriptEngine)
MiniModel* miniSingleton = new MiniModel();
return miniSingleton;
}
int main(int argc=0, char* argv[]=nullptr)
{
printf("\n launching \n");
QGuiApplication app(argc, argv);
qmlRegisterSingletonType<MiniModel>("myModel.miniModel", 1, 0, "MiniModel",mp_singleton);
QQmlApplicationEngine engine;
engine.addImportPath(QStringLiteral("..\\..\\..\\..\\Tools\\Qt\\5.12.0\\x64\\5.12.0\\msvc2017_64\\qml"));
engine.load(QUrl(QStringLiteral("..\\..\\..\\miniModel.qml")));
return app.exec();
}
main.cpp v2 : singletin using QJSValue
#include "miniModel.h"
static QJSValue m_singletonModel(QQmlEngine* engine, QJSEngine* scriptEngine) {
Q_UNUSED(engine)
static bool m_miniboule;
QJSValue miniModel = scriptEngine->newObject();
miniModel.setProperty("miniboule", m_miniboule);
return miniModel;
}
int main(int argc = 0, char* argv[] = nullptr)
{
printf("\n launching \n");
QGuiApplication app(argc, argv);
qmlRegisterSingletonType("myModel.miniModel", 1, 0, "MiniModel", m_singletonModel);
QQmlApplicationEngine engine;
engine.addImportPath(QStringLiteral("..\\..\\..\\..\\Tools\\Qt\\5.12.0\\x64\\5.12.0\\msvc2017_64\\qml"));
engine.load(QUrl(QStringLiteral("..\\..\\..\\miniModel.qml")));
return app.exec();
}
and the QML. be careful, it's tough
import QtQuick 2.5
import QtQuick.Window 2.5
import QtQuick.Controls 1.4
import myModel.miniModel 1.0 as MyModel
ApplicationWindow {
id: root
width: 300
height: 480
visible:true
Text{
id: textTest
x: 62
y: 75
color: "#d21616"
text: "vanilla"
visible: false//the text is supposed to appear when clicking in the mouseArea
}
MouseArea{
anchors.fill: parent
onClicked: textTest.visible= MyModel.Minimodel.miniboule//the boolean I want to acess, defined to true
}
}
now, the error changed, since I called MyModel.MiniModel.miniboule instead of just MiniModel.miniboule
the error is TypeError: Cannot read property 'miniboule' of undefined
