qscrollarea in .ui ?

stephane78

HiH I have a problem with a qscrollarea that i have putted in the .ui and that doesn t work.
My scrollareawidgetcontents has a vertical layout as the widget that it is it and i add qlabel in this widget and then call resize() to increase the heigth.my qscrollarea has the properties widgetresizable and adjusttocontents.
The qscrollarea doesnt work.has anyone a good idea?

VRonin

See https://forum.qt.io/topic/87379/qlabel-size-won-t-expand-even-after-setting-sizepolicy-to-expanding

stephane78

Hi vronin and thanks but it is not exactly the same problem: i have a list of qlabel with text that i display in my widget and i want to scroll on it.if i put a addwidget on the layout when there are a lot of qlabel they are too small and the qscrollarea doesnt work.if i dont put addwidget i have the list of label but the qscrollarea doesnt work too and i dont see the end of the list.

mrjj

@stephane78
Hi
Did you set Minimum size on the labels? did they become smaller when you added more?
Also, why a "list" of Qlabels inside scrollarea ? you can get a much better working version
with a List View / Widget. (if i may ask)

VRonin

@mrjj said in qscrollarea in .ui ?:

Also, why a "list" of Qlabels inside scrollarea ? you can get a much better working version with a List View / Widget. (if i may ask)

This is great advice

@stephane78 said in qscrollarea in .ui ?:

but it is not exactly the same problem

I still disagree:

#include <QApplication>
#include <QScrollArea>
#include <QLabel>
#include <QVBoxLayout>
#include <QPushButton>
int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    QWidget mainWid;
    QVBoxLayout* mainLay=new QVBoxLayout(&mainWid);
    QScrollArea* imageScroll = new QScrollArea(&mainWid);
    QWidget* scrollWidget = new QWidget;
    QVBoxLayout* scrollLay=new QVBoxLayout(scrollWidget);
    QPushButton* addLabelButton = new QPushButton("Add Label",&mainWid);
    imageScroll->setWidget(scrollWidget);
    QObject::connect(addLabelButton,&QPushButton::clicked,scrollWidget,[scrollLay,scrollWidget]()->void{
        scrollLay->addWidget(new QLabel("Some Label",scrollWidget));
        scrollWidget->resize(scrollWidget->sizeHint());
    });
    mainLay->addWidget(addLabelButton);
    mainLay->addWidget(imageScroll);
    mainWid.show();
    return a.exec();
}

stephane78

@VRonin and mrjj.yes it goes smaller when i add more qlabel even with setminimumsize and resize sizehint.but thank you for the advice, i will try with a qlistwidget.i think it is a good idea..thanks both...