Hiding/Showing a layout by pressing a button.

[kielbas99]

Hey guys, I've got a question about the grid layout. I've placed there some labels, edit lines and a combo box. I want to hide/show the layout with all that stuff by pressing a button. It should adjust the whole main window according to that hidden/showed layout. Can someone give me an advice how to do it? Thanks.

[ChrisW67]

Take a look at the Extension Example for something along these lines.

[kielbas99]

Ok, I worked out how to hide all that stuff by pressing one button, but I've got another problem. I don't know how to show them again by pressing the same button. I don't have a clue even after studying that extension example.
@EDIT:
My way to do it it's not very effective. I mean look at the code. It should hide and show after pressing the "Inne" button. It shouldn't be "setCheckable(true)." I think the signals are wrong too. Also I should use show() but I don't know how to connect both, hide() and show().

void Kalkulator::on_Inne_clicked()
{
    przycisk= ui->Inne;
    przycisk->setCheckable(true);
 
    pierwszy= ui->lineEdit_7;
    drugi=ui->lineEdit_8;
    trzeci=ui->lineEdit_9;
    czwarty=ui->lineEdit_10;
    piaty=ui->lineEdit_11;
    wybor=ui->comboBox;
    jeden=ui->label_10;
    dwa=ui->label_11;
    trzy=ui->label_12;
    cztery=ui->label_13;
    piec=ui->label_14;
 
    connect(przycisk,SIGNAL(toggled(bool)), pierwszy, SLOT(setVisible(bool)));
    connect(przycisk,SIGNAL(toggled(bool)), drugi, SLOT(setVisible(bool)));
    connect(przycisk,SIGNAL(toggled(bool)), trzeci, SLOT(setVisible(bool)));
    connect(przycisk,SIGNAL(toggled(bool)), czwarty, SLOT(setVisible(bool)));
    connect(przycisk,SIGNAL(toggled(bool)), piaty, SLOT(setVisible(bool)));
    connect(przycisk,SIGNAL(toggled(bool)), wybor, SLOT(setVisible(bool)));
    connect(przycisk,SIGNAL(toggled(bool)), jeden, SLOT(setVisible(bool)));
    connect(przycisk,SIGNAL(toggled(bool)), dwa, SLOT(setVisible(bool)));
    connect(przycisk,SIGNAL(toggled(bool)), trzy, SLOT(setVisible(bool)));
    connect(przycisk,SIGNAL(toggled(bool)), cztery, SLOT(setVisible(bool)));
    connect(przycisk,SIGNAL(toggled(bool)), piec, SLOT(setVisible(bool)));
 
    pierwszy->hide();
    drugi->hide();
    trzeci->hide();
    czwarty->hide();
    piaty->hide();
    wybor->hide();
    jeden->hide();
    dwa->hide();
    trzy->hide();
    cztery->hide();
    piec->hide();
 
}

void Kalkulator::on_Inne_clicked()
{
    przycisk= ui->Inne;
    przycisk->setCheckable(true);

    pierwszy= ui->lineEdit_7;
    drugi=ui->lineEdit_8;
    trzeci=ui->lineEdit_9;
    czwarty=ui->lineEdit_10;
    piaty=ui->lineEdit_11;
    wybor=ui->comboBox;
    jeden=ui->label_10;
    dwa=ui->label_11;
    trzy=ui->label_12;
    cztery=ui->label_13;
    piec=ui->label_14;

    connect(przycisk,SIGNAL(toggled(bool)), pierwszy, SLOT(setVisible(bool)));
    connect(przycisk,SIGNAL(toggled(bool)), drugi, SLOT(setVisible(bool)));
    connect(przycisk,SIGNAL(toggled(bool)), trzeci, SLOT(setVisible(bool)));
    connect(przycisk,SIGNAL(toggled(bool)), czwarty, SLOT(setVisible(bool)));
    connect(przycisk,SIGNAL(toggled(bool)), piaty, SLOT(setVisible(bool)));
    connect(przycisk,SIGNAL(toggled(bool)), wybor, SLOT(setVisible(bool)));
    connect(przycisk,SIGNAL(toggled(bool)), jeden, SLOT(setVisible(bool)));
    connect(przycisk,SIGNAL(toggled(bool)), dwa, SLOT(setVisible(bool)));
    connect(przycisk,SIGNAL(toggled(bool)), trzy, SLOT(setVisible(bool)));
    connect(przycisk,SIGNAL(toggled(bool)), cztery, SLOT(setVisible(bool)));
    connect(przycisk,SIGNAL(toggled(bool)), piec, SLOT(setVisible(bool)));

    pierwszy->hide();
    drugi->hide();
    trzeci->hide();
    czwarty->hide();
    piaty->hide();
    wybor->hide();
    jeden->hide();
    dwa->hide();
    trzy->hide();
    cztery->hide();
    piec->hide();

}

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[wysota]

All the buttons you want to hide should be put into a dedicated widget and you should be hiding/showing that single widget. Or maybe even you should use QStackedWidget to divide your widgets into pages exactly one of which is visible at a time.

[ChrisW67]

Not sure how I managed to write this and then not post it a few hours back....

Here is one approach:

class Kalkulator {
...
private:
  void updateUi();
  bool m_visible;
}

class Kalkulator {
...
private:
  void updateUi();
  bool m_visible;
}

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Kalkulator::Kalkulator(): 
    m_visible(true)  // <<< the initial visibility
{
  ...
  updateUi();  // <<< make the UI match the visibility
}
 
Kalkulator::updateUi()
{
  pierwszy->setVisible(m_visible);
  drugi->setVisible(m_visible);
  ...
}
 
void on_Inne_Clicked()
{
  m_visible = !m_visible;  //  <<< toggle visibility
  updateUi();  // <<< make the UI match the visibility
}

Kalkulator::Kalkulator(): 
    m_visible(true)  // <<< the initial visibility
{
  ...
  updateUi();  // <<< make the UI match the visibility
}

Kalkulator::updateUi()
{
  pierwszy->setVisible(m_visible);
  drugi->setVisible(m_visible);
  ...
}

void on_Inne_Clicked()
{
  m_visible = !m_visible;  //  <<< toggle visibility
  updateUi();  // <<< make the UI match the visibility
}

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Or even cleaner, put all the hideable widgets inside a single QWidget and simply show or hide that widget. (That's what the example does and wysota suggests)

[kielbas99]

Thanks. Without you I would be still thinking about a way out. Thanks again for help.