Reserve space for initially hidden widget in QVBoxLayout
- by Skinniest Man
I am using a QVBoxLayout to arrange a vertical stack of widgets. I want some of them to be initially hidden and only show up when a check box is checked. Here is an example of the code I'm using.
MyWidget::MyWidget(QWidget *parent) : QWidget(parent)
{
QVBoxLayout *layout = new QVBoxLayout(this);
QLabel *labelLogTypes = new QLabel(tr("Log Types"));
m_checkBoxCsv = new QCheckBox(tr("&Delimited File (CSV)"));
m_labelDelimiter = new QLabel(tr("Delimiter:"));
m_lineEditDelimiter = new QLineEdit(",");
checkBoxCsv_Toggled(m_checkBoxCsv-isChecked());
connect(m_checkBoxCsv, SIGNAL(toggled(bool)), SLOT(checkBoxCsv_Toggled(bool)));
QHBoxLayout *layoutDelimitedChar = new QHBoxLayout();
layoutDelimitedChar-addWidget(m_labelDelimiter);
layoutDelimitedChar-addWidget(m_lineEditDelimiter);
m_checkBoxXml = new QCheckBox(tr("&XML File"));
m_checkBoxText = new QCheckBox(tr("Plain &Text File"));
// Now that everything is constructed, put it all together
// in the main layout.
layout-addWidget(labelLogTypes);
layout-addWidget(m_checkBoxCsv);
layout-addLayout(layoutDelimitedChar);
layout-addWidget(m_checkBoxXml);
layout-addWidget(m_checkBoxText);
layout-addStretch();
}
MyWidget::checkBoxCsv_Toggled(bool checked)
{
m_labelDelimiter-setVisible(checked);
m_lineEditDelimiter-setVisible(checked);
}
I want m_labelDelimiter and m_lineEditDelimiter both to be initially invisible and I want their visibility to toggle with the state of m_checkBoxCsv.
This code acheives the functionality I desire, but it doesn't seem to reserve space for the two initially hidden widgets. When I check the checkbox, they become visible, but everything is kind of scrunched to accomodate them.
If I leave them initially visible, everything is laid out just the way I would like it. Is there any way to make the QVBoxLayout reserve space for these widgets even if they're initially invisible?
