QWidget Shyness Syndrome

[baray98]

I have made a widget with the following

FrameInfo::FrameInfo(QWidget* parent )
        :QGroupBox(parent)
{
    //ctor
 
    QVBoxLayout *topLayout = new QVBoxLayout(this);
    QScrollArea* scrollArea = new QScrollArea(this);
    topLayout->addWidget(scrollArea);
    setLayout(topLayout);
 
    //Now, for the group box
    holder = new QWidget(scrollArea);
    mainLayout = new QVBoxLayout(holder);
    holder->setLayout(mainLayout);
    mainLayout->addStretch();
 
    scrollArea->setWidget(holder);
}

FrameInfo::FrameInfo(QWidget* parent )
        :QGroupBox(parent)
{
    //ctor

    QVBoxLayout *topLayout = new QVBoxLayout(this);
    QScrollArea* scrollArea = new QScrollArea(this);
    topLayout->addWidget(scrollArea);
    setLayout(topLayout);

    //Now, for the group box
    holder = new QWidget(scrollArea);
    mainLayout = new QVBoxLayout(holder);
    holder->setLayout(mainLayout);
    mainLayout->addStretch();

    scrollArea->setWidget(holder);
}

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and a function like this

void FrameInfo::addInfo (QString infoName, QString val)
{
    QHBoxLayout* infoLayout = new QHBoxLayout;
 
    QLabel* lblValue = new QLabel (infoName,holder);
    infoLayout->addWidget(lblValue);
 
 
    QLineEdit* leValue = new QLineEdit (val,holder);
    leValue->setReadOnly ( true );
    leValue->setAlignment(Qt::AlignRight);
    infoLayout->addWidget(leValue);
 
 
    infoLayout->addStretch();
    mainLayout->insertLayout(mainLayout->count()-1,infoLayout);
 
    holder->adjustSize();
}

void FrameInfo::addInfo (QString infoName, QString val)
{
    QHBoxLayout* infoLayout = new QHBoxLayout;

    QLabel* lblValue = new QLabel (infoName,holder);
    infoLayout->addWidget(lblValue);


    QLineEdit* leValue = new QLineEdit (val,holder);
    leValue->setReadOnly ( true );
    leValue->setAlignment(Qt::AlignRight);
    infoLayout->addWidget(leValue);


    infoLayout->addStretch();
    mainLayout->insertLayout(mainLayout->count()-1,infoLayout);

    holder->adjustSize();
}

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the symptom is that when this widget is not hidden and i will call addInfo I won't see my QLabel and QLineEdit anywhere, but if this widget is hidden ( not the current tab for the tabwidget) then call addInfo, when i let it show (by clicking the tab making this widget the current tab widget index ) then ill see them happy and breathing.

please help my widget ease with this sickness,

baray98

[baray98]

one more symptoms if i remove this line

holder->adjustSize(); //found in addInfo

holder->adjustSize(); //found in addInfo

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it has the same effect i will see a blank groupBox. I think it has something to do with repainting my holder widget. what do you think guys?

baray98

[marcel]

Here you go(untested)

void FrameInfo::addInfo (QString infoName, QString val)
      {
      QWidget *w = new QWidget(holder);
          QHBoxLayout* infoLayout = new QHBoxLayout(w);
          QLabel* lblValue = new QLabel (infoName,w);
          infoLayout->addWidget(lblValue);
          QLineEdit* leValue = new QLineEdit (val,w);
          leValue->setReadOnly ( true );
          leValue->setAlignment(Qt::AlignRight);
          infoLayout->addWidget(leValue);
          infoLayout->addStretch();
          mainLayout->addWidget(w);
          mainLayout->update();
      }

void FrameInfo::addInfo (QString infoName, QString val)
      {
      QWidget *w = new QWidget(holder);
          QHBoxLayout* infoLayout = new QHBoxLayout(w);
          QLabel* lblValue = new QLabel (infoName,w);
          infoLayout->addWidget(lblValue);
          QLineEdit* leValue = new QLineEdit (val,w);
          leValue->setReadOnly ( true );
          leValue->setAlignment(Qt::AlignRight);
          infoLayout->addWidget(leValue);
          infoLayout->addStretch();
          mainLayout->addWidget(w);
          mainLayout->update();
      }

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[baray98]

the shyness is still there marcel but when i pull (skip)my scrollArea out of the pic i will see my info fine... this is really made me pull my hair today ...

i am attaching my files in question hoping you can help me

baray98

[baray98]

i think my problem is that my holder widget won't adjust it size after adding my lineEdits and labels. I already added the resize() for holder widgets but still no effect. what else can i do.

baray98

[baray98]

my solution was to re-assign the widget holder again in scrollArea everytime i add some more widgets in my holder.

QWidget* holder = scrollArea->takeWidget()
 
// add stuff to holder 
 
 
scrollArea->setWidget(holder)

QWidget* holder = scrollArea->takeWidget()

// add stuff to holder 


scrollArea->setWidget(holder)

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baray98 (kudos to marcel)