Vtable issue and moc

spirit1988

I'm getting this error when I try to run my code:

editor.cpp:(.text._ZN10MainWindowD2Ev[_ZN10MainWindowD5Ev]+0x3): referencia a `vtable for MainWindow' sin definir

This is my code:

@
#include <QApplication>
#include <QMainWindow>
#include <QLabel>
#include <QWidget>
#include <QPushButton>
#include <QVBoxLayout>
#include <QMenu>
#include <QMenuBar>
#include <QFileDialog>

class MainWindow : public QMainWindow
{
Q_OBJECT
public:
MainWindow(): QMainWindow(0)
{

    // File menu
    QMenu *file;
    file = this->menuBar()->addMenu("&File");

    QAction* open = new QAction("&Open", this);
    connect(open, SIGNAL(triggered()), this, SLOT(openFile&#40;&#41;));
    file->addAction(open);

    QAction* save = new QAction("&Save", this);
    // connect(open, SIGNAL(triggered()), qApp, SLOT(quit()));
    file->addAction(save);

    QAction* saveAs = new QAction("&Save As", this);
    // connect(open, SIGNAL(triggered()), qApp, SLOT(quit()));
    file->addAction(saveAs);

    file->addSeparator();

    QAction* quit = new QAction("&Quit", this);
    connect(quit, SIGNAL(triggered()), qApp, SLOT(quit()));
    quit->setShortcut(tr("CTRL+Q"));
    file->addAction(quit);

    // View menu
    QMenu *view;
    view = this->menuBar()->addMenu("&View");

    QAction* toolbar = new QAction("&Toolbar", this);;
    toolbar->setCheckable(true);
    toolbar->setChecked(false);
    view->addAction(toolbar);

    QAction* points = new QAction("&Walkable points", this);;
    points->setCheckable(true);
    points->setChecked(false);
    view->addAction(points);
    
    QAction* creatures = new QAction("&Creatures Window", this);;
    creatures->setCheckable(true);
    creatures->setChecked(false);
    view->addAction(creatures);  

    QAction* dialog = new QAction("&Dialog Window", this);;
    dialog->setCheckable(true);
    dialog->setChecked(false);
    view->addAction(dialog);
};

public slots:
void openFile()
{
QFileDialog::getOpenFileName( this, tr("Open Document"), QDir::currentPath(), tr("Document files (.doc .rtf);;All files (.)"), 0, QFileDialog::DontUseNativeDialog );

    QString filename = QFileDialog::getOpenFileName( 
        this, 
        tr("Open Document"), 
        QDir::currentPath(), 
        tr("Document files (*.doc *.rtf);;All files (*.*)") );

    if( !filename.isNull() )
    {
        qDebug( filename.toAscii() );
    }
}

void openFiles()
{
    QStringList filenames = QFileDialog::getOpenFileNames( 
        this, 
        tr("Open Document"), 
        QDir::currentPath(), 
        tr("Documents (*.doc);;All files (*.*)") );
    if( !filenames.isEmpty() )
    {
        qDebug( filenames.join(",").toAscii() );
    }
}

void openDir()
{
    QString dirname = QFileDialog::getExistingDirectory( 
        this, 
        tr("Select a Directory"), 
        QDir::currentPath() );
    if( !dirname.isNull() )
    {
        qDebug( dirname.toAscii() );
    }
}

void saveFile&#40;&#41;
{
    QString filename = QFileDialog::getSaveFileName( 
        this, 
        tr("Save Document"), 
        QDir::currentPath(), 
        tr("Documents (*.doc)") );
    if( !filename.isNull() )
    {
        qDebug( filename.toAscii() );
    }
}

};

int main(int argc, char *argv[ ])
{
QApplication app(argc, argv);

MainWindow win; 
win.showMaximized();
return app.exec();

}@

This is my compile code:

@
#!/bin/bash
qmake -project
qmake
make
@

I've already tried to delete the .o file and the .pro file. I think the problem may be that I'm doing the class definition and the class declaration in the same file? I wish that's not the problem because I don't want to split this little program in various files.. it's tedious.

SGaist

Hi and welcome to devnet,

You need to declare your MainWindow in it's own header in order for moc to make it's job.