Qlist geometry interference with GridLayout in QT Designer

[dexli]

Hi all,

I try to design a dialog with QtDesigner. Inside a Group box i want the following layout

label... Spinbox1 Spinbox1
####
#....#
#....# . Lineedit
#....#
#....#
####


where ### is the listbox.

every time I try to use a grid layout the size of the list box grows to much bigger size than I need. Even if i set the sizePolicy to fixed to Minimum or every other value

How can I prevent this nasty behaviour ?

Thanks an have a nice day

dexli

[high_flyer]

setting maximum width must work.

[ChrisW67]

Or you can use the stretch parameter to QBoxLayout::addWidget() to apportion the available space in a known ratio:

#include <QtGui>
#include <QDebug>
 
class MainWindow: public QMainWindow {
    Q_OBJECT
public:
    MainWindow(QWidget *p = 0): QMainWindow(p) {
        QWidget *central = new QWidget(this);
        QListView *list = new QListView(this);
        QLineEdit *edit = new QLineEdit(this);
 
        QHBoxLayout *layout = new QHBoxLayout(central);
        layout->addWidget(list, 1);  // allocate 1 unit to this
        layout->addWidget(edit, 2);  // and 2 units to this
 
        central->setLayout(layout);
        setCentralWidget(central);
    }
public slots:
private:
};
 
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
 
    MainWindow m;
    m.show();
    return app.exec();
}
#include "main.moc"

#include <QtGui>
#include <QDebug>

class MainWindow: public QMainWindow {
    Q_OBJECT
public:
    MainWindow(QWidget *p = 0): QMainWindow(p) {
        QWidget *central = new QWidget(this);
        QListView *list = new QListView(this);
        QLineEdit *edit = new QLineEdit(this);

        QHBoxLayout *layout = new QHBoxLayout(central);
        layout->addWidget(list, 1);  // allocate 1 unit to this
        layout->addWidget(edit, 2);  // and 2 units to this

        central->setLayout(layout);
        setCentralWidget(central);
    }
public slots:
private:
};

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);

    MainWindow m;
    m.show();
    return app.exec();
}
#include "main.moc"

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How you tweak the layout depends on exactly what behaviour you want.

[dexli]

Thanks for the hints.
I decide to omit the layout around this widget. This was the easiest way, because the other solutions seem to be a kind of hacking.