[solved] QScrollArea with dynamic contents

Francknos

Hi everybody,

Someone can help me with these Fu***ing Layout !!

@
QVBoxLayout *vLay = new QVBoxLayout(ui->scrollAreaWidgetContents_positions);

for(int i=0; i<_code.size() ;i++)
{
QHBoxLayout *hLay = new QHBoxLayout(ui->scrollAreaWidgetContents_positions);
QLabel *lab = new QLabel(this);
lab->setText(QString(tr("Position %1:").arg(i+1)));

   QLineEdit *le = new QLineEdit(this);
   le->setText(_code[i]);

   hLay->addWidget(lab);
   hLay->addWidget(le);
   vLay->addLayout(hLay);
   vLay->addSpacing(40);

}
@

My widegets Label and LineEdit are not in my scroll area I don't understant anything with this layout.
I placed a QScrollArea in my ui file which contain a scrollAreaContentwidet i try everything but no one works.

Thx for your help

SGaist

Hi,

QScrollArea is not meant to be used with layouts, you put a widget in it with setWidget. That widget might be a complex widget with a layout.

See "there":http://qt-project.org/doc/qt-5/qscrollarea.html#details

@
QWidget *placeHolder = new QWidget;
QVBoxLayout *vLay = new QVBoxLayout(placeHolder);
ui->scrollAreaWidgetContents_positions->setWidget(palceHolder);
for(int i=0; i<_code.size() ;i++)
{
QHBoxLayout *hLay = new QHBoxLayout;
QLabel *lab = new QLabel;
lab->setText(QString(tr("Position %1:").arg(i+1)));

   QLineEdit *le = new QLineEdit;
   le->setText(_code[i]);

   hLay->addWidget(lab);
   hLay->addWidget(le);
   vLay->addLayout(hLay);
   vLay->addSpacing(40);

}@

Also be aware that giving a layout a parent means that you want to set the layout to the parent. Which is not what you want to do with e.g. hLay.

Francknos

Thanks for your reply.
It works, I have try this before but my QWidget here placeHolder have lost the "stylesheet" defined in my mainWidget

SGaist

Without seeing the style sheet I can't tell what might have gone wrong

Francknos

Hi,
it's just the background "transparent". I fixed it thx for your explanation.

SGaist

You're welcome !

Since it looks like you have everything working please update the thread title prepending [solved] so other forum users may know a solution has been found :)

Francknos

Sorry . the Problem is "solved"