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tictactoetaskmenu.cpp Example File
designer/taskmenuextension/tictactoetaskmenu.cpp

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 #include <QtDesigner>
 #include <QtGui>

 #include "tictactoe.h"
 #include "tictactoedialog.h"
 #include "tictactoetaskmenu.h"

 TicTacToeTaskMenu::TicTacToeTaskMenu(TicTacToe *tic, QObject *parent)
     : QObject(parent)
 {
     ticTacToe = tic;

     editStateAction = new QAction(tr("Edit State..."), this);
     connect(editStateAction, SIGNAL(triggered()), this, SLOT(editState()));
 }

 void TicTacToeTaskMenu::editState()
 {
     TicTacToeDialog dialog(ticTacToe);
     dialog.exec();
 }

 QAction *TicTacToeTaskMenu::preferredEditAction() const
 {
     return editStateAction;
 }

 QList<QAction *> TicTacToeTaskMenu::taskActions() const
 {
     QList<QAction *> list;
     list.append(editStateAction);
     return list;
 }

 TicTacToeTaskMenuFactory::TicTacToeTaskMenuFactory(QExtensionManager *parent)
     : QExtensionFactory(parent)
 {
 }

 QObject *TicTacToeTaskMenuFactory::createExtension(QObject *object,
                                                    const QString &iid,
                                                    QObject *parent) const
 {
     if (iid != Q_TYPEID(QDesignerTaskMenuExtension))
         return 0;

     if (TicTacToe *tic = qobject_cast<TicTacToe*>(object))
         return new TicTacToeTaskMenu(tic, parent);

     return 0;
 }


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Qt 4.3.5