Getting information of clicked button (Qt) - c++

Question

I'm making the board game Puerto Rico in C++ and Qt. One of the features will be that after they've chosen the Major Role (button 1) each player (3 players in total) kan build a building. So i have a button for each building, is there a way that i get the information (like the name of the button) when the player clicked on it?
Kind regards

Answer 1

If you connect a signal of QPushButton to a slot, you can call sender() inside the slot to get the object which sent the signal.
Example slot code:
void MainWindow::onButtonPress()
{
QObject* senderObj = sender();
if (senderObj->isWidgetType())
{
QPushButton* button = qobject_cast<QPushButton*>(senderObj);
if (button)
{
// button is the QPushButton who emmited this signal
}
}
}

Answer 2

If you created building1Button, building2Button, building3Button buttons in the designer, you can try the followings.
In your class constructor you need to connect the clicked() SIGNAL from all building buttons to the same SLOT.
Game::Game()
{
// ...
connect( ui->building1Button, SIGNAL( clicked() ), this, SLOT( onBuildingClicked() ) );
connect( ui->building2Button, SIGNAL( clicked() ), this, SLOT( onBuildingClicked() ) );
connect( ui->building3Button, SIGNAL( clicked() ), this, SLOT( onBuildingClicked() ) );
// ...
}
And in that SLOT you can use sender() function to check which button was clicked.
void Game::onBuildingClicked()
{
QPushButton* clickedButton = qobject_cast< QPushButton* >( sender() );
if ( clickedButton )
{
const QString clickedBuilding = clickedButton->text();
const QString clickedButtonName = clickedButton->objectName();
}
}