check for clicks on buttons inside a vector?

legitnameyo

I've got the following function to create a button when another button is pressed

void NoteTest::on_btn_add_note_clicked() {
    QPushButton *crt = new QPushButton(ui->frame_note_list);


    crt->setText(QString("text"));
    crt->move(0, 30*total_notes);
    crt->resize(186, 30);
    crt->setStyleSheet(QString("QPushButton {color: #444444; background: #e6e6e6; border: 2px solid #cccccc; border-width: 0px 0px 2px 0px;} QPushButton:hover {border: 2px black solid; color: #333333;background: #F7F7F7;} QPushButton:pressed {background: #e6e6e6;}"));
    crt->show();

    v_notes.push_back(crt);
    total_notes += 1;
}

Now, how do check when one of those buttons are pressed? And can I know which one of the buttons that was pressed?

legitnameyo

I changed the code to

void NoteTest::on_btn_add_note_clicked() {
    QPushButton *crt = new QPushButton(ui->frame_note_list);
    connect(crt, SIGNAL(clicked()), SLOT(on_btn_note_clicked()));

    crt->setText(QString("text"));
    crt->move(0, 30*total_notes);
    crt->resize(186, 30);
    crt->setStyleSheet(QString("QPushButton {color: #444444; background: #e6e6e6; border: 2px solid #cccccc; border-width: 0px 0px 2px 0px;} QPushButton:hover {border: 2px black solid; color: #333333;background: #F7F7F7;} QPushButton:pressed {background: #e6e6e6;}"));
    crt->show();

    v_notes.push_back(crt);
    total_notes += 1;
}

void NoteTest::on_btn_note_clicked() {
    qDebug() << "clicked!";
}

and now it says "clicked!" when I press a button, but I do not know WHICH one that was pressed...

mrjj

Hi
Why do you need to know which buttons?
Anyway, you can use sender()

void NoteTest::on_btn_note_clicked() {
  QPushButton * theButton = qobject_cast<QPushButton *> ( sender() );
  if(theButton)  {
   //do what you need
   }
 qDebug() << "clicked!";
}

legitnameyo

I need to know what button has been pressed (not the full history) in order to do the right action. Your way, using sender, worked perfectly! Thanks!

SGaist

What are the "right actions" ?

legitnameyo

The "right actions" is open the right document when I press a certain button in this vector.

SGaist

Rather than using a bunch of ifs, what about using a QMap or a QHash to store the information and retrieve that in the slot ? This will make your implementation easier to maintain.