Actually, I think you're creating a new instance of the FirstPage.qml
component using this code. But, Sailfish should have already created
its own instance of that page when it started up.
You might instead try retrieving a view of the Sailfish instance and
going from there, something like this:
QQuickView *view = SailfishApp::createView();
QObject *object = view->rootObject();
QObject *label = object->findChild<QObject *>("label");
--John
On 8/13/15 10:51 AM, Antonio Mancini wrote:
Thanks, actually i had already seen that but couldn't accomplish much,
now i tried again and i managed to access and edit qml properties, but
the QML object doesn't update.
i use this code in a c++ method
QQmlEngine engine;
QQmlComponent component (&engine,
"/usr/share/harbour-pocketmonsters/qml/pages/FirstPage.qml");
QObject *object = component.create();
QObject *label = object->findChild<QObject*>("label");
cout << label->property("text").toString();
if (label)
label->setProperty("text", active.name <http://active.name>);
cout << label->property("text").toString();
the output of cout is correct, but the label doesn't update
The console shows these errors, but i think they are irrelevant since
the output is correct
[W] unknown:108 -
file:///usr/lib/qt5/qml/Sailfish/Silica/Page.qml:108:
ReferenceError: __silica_applicationwindow_instance is not defined
[W] unknown:94 -
file:///usr/lib/qt5/qml/Sailfish/Silica/Page.qml:94:
ReferenceError: __silica_applicationwindow_instance is not defined
[W] unknown:178 -
file:///usr/lib/qt5/qml/Sailfish/Silica/Page.qml:178:
ReferenceError: __silica_applicationwindow_instance is not defined
[W] unknown:331 -
file:///usr/lib/qt5/qml/Sailfish/Silica/private/PulleyMenuBase.qml:331:
ReferenceError: __silica_applicationwindow_instance is not defined
2015-08-13 15:17 GMT+02:00 Andrea Bernabei <and.berna...@gmail.com
<mailto:and.berna...@gmail.com>>:
Hi,
try having a look at this
http://doc.qt.io/qt-5/qtqml-cppintegration-interactqmlfromcpp.html
2015-08-13 14:14 GMT+01:00 Antonio Mancini <ziobill...@gmail.com
<mailto:ziobill...@gmail.com>>:
Hi all, i need to access a property of a C++ Class, declared
inside another class, from QML.
This is the principal class:
#ifndef MANAGER_H
#define MANAGER_H
#include <QObject>
#include <QTextStream>
#include <QFile>
#include "monster.h"
#include "move.h"
#include "turnmanager.h"
class Manager : public QObject
{
Q_OBJECT
public:
explicit Manager(QObject *parent = 0);
int activeId;
QString activeString;
int enemyId;
Monster active;
Monster enemy;
Move activeMove;
Move enemyMove;
Q_INVOKABLE void saveActive();
Q_INVOKABLE void fetchMonster( const int &level );
Q_INVOKABLE void assignMoves(Monster &monster );
Q_INVOKABLE void setMove( Move &move, const int &id );
signals:
void fetchMonsterDone();
public slots:
};
#endif // MANAGER_H
this is the Monster Class:
#ifndef MONSTER_H
#define MONSTER_H
#include <QObject>
#include <QString>
#include <math.h>
#include "move.h"
class Monster : public QObject
{
Q_OBJECT
public:
explicit Monster(QObject *parent = 0);
...
QString name;
...
};
#endif // MONSTER_H
in my qml page i include the class properly and i have
something like this:
Page {
id: page
Manager {
id: manager
onFetchMonsterDone: {
console.log("Fetch done")
}
}
Label {
id: label
}
}
after doing some operations with fetchMonster(), the "active"
class has been assigned some values to its properties, i need
to access these values from QML in the "onFetchMonsterDone",
let's say i need to assign to label.text the value of
manager.active.name <http://manager.active.name>
OR
i read there are some ways to access end edit QML properties
from C++
Can someone help me?
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