QGraphicsScene core dump?

[cookie1909]

Could someone please tell me what is wrong with this piece of code? I'm using Qt 4.5.3 on Unix/X11

#include <QGraphicsView>    
#include <QGraphicsScene>    
 
int main(int argc, char *argv[])
{
    QGraphicsScene s;
    s.addText("hello");
 
    QGraphicsView v(&s);
    v.show();
 
    return 0;
}

#include <QGraphicsView>    
#include <QGraphicsScene>    

int main(int argc, char *argv[])
{
    QGraphicsScene s;
    s.addText("hello");

    QGraphicsView v(&s);
    v.show();

    return 0;
}

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It gives me a core dump right after I declare a QGraphicsScene with the following backtrace.

#0 QGraphicsScenePrivate::init (this=0x5012e0) at ../../include/QtGui/../../src/gui/kernel/qapplication.h:102
102 #ifndef QT_NO_STYLE_STYLESHEET
(gdb) where
#0 QGraphicsScenePrivate::init (this=0x5012e0) at ../../include/QtGui/../../src/gui/kernel/qapplication.h:102
#1 0x0000002a95e22e95 in QGraphicsScene (this=0x7fbffff610, parent=0x0) at graphicsview/qgraphicsscene.h:276
#2 0x000000000040082f in main () at main.cpp:9

[cookie1909]

Well, I guess I have to have a parent window and an application ... Sorry my first post was dump :P

#include <QtGui>
 
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    QMainWindow window;
 
    QGraphicsScene scene(&window);
    QGraphicsItem* item = scene.addText("hello");
 
    QGraphicsView view(&window);
    view.setScene(&scene);
 
    window.show();
    return app.exec();
}

#include <QtGui>
 
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    QMainWindow window;
    
    QGraphicsScene scene(&window);
    QGraphicsItem* item = scene.addText("hello");
    
    QGraphicsView view(&window);
    view.setScene(&scene);
 
    window.show();
    return app.exec();
}

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[wysota]

You don't need the parent window. You need the application object though.