connect(myPropertyPanel, SIGNAL(keyReleased(QKeyEvent*)),
myOperationMgr, SLOT(onKeyReleased(QKeyEvent*)));
//connect(myOperationMgr, SIGNAL(validationStateChanged(bool)),
// this, SLOT(onValidationStateChanged(bool)));
connect(myPropertyPanel, SIGNAL(keyReleased(QKeyEvent*)),
myOperationMgr, SLOT(onKeyReleased(QKeyEvent*)));
//connect(myOperationMgr, SIGNAL(validationStateChanged(bool)),
// this, SLOT(onValidationStateChanged(bool)));