Child widget does not get resized when main widget is.

[anr78]

I'm getting started with layouts and have some problems. I created a simple project with a QWidget as base class. I setup layouts in the ui file, and everything compiled, ran and resized fine. Then I added a base class that's supposed to keep track of multiple classes with their own ui-files. When I resize base, the widget contents doesn't follow. What am I doing wrong?



// main.cpp
#include <QtGui/QApplication>
#include "base.h"

int main(int argc, char *argv[])
{
QApplication a(argc, argv);
base b;
b.show();

return a.exec();
}

//base.h

#ifndef BASE_H
#define BASE_H

#include <QWidget>

class Widget;

class base : public QWidget
{
Q_OBJECT
public:
explicit base(QWidget *parent = 0);

signals:

public slots:

private:
Widget * w;
};

#endif // BASE_H

//base.cpp

#include "base.h"
#include "widget.h"

base::base(QWidget *parent) :
QWidget(parent),
w(new Widget(this))
{
w->show();
}

// widget.h

#ifndef WIDGET_H
#define WIDGET_H

#include <QWidget>

namespace Ui {
class Widget;
}

class Widget : public QWidget
{
Q_OBJECT

public:
explicit Widget(QWidget *parent = 0);
~Widget();

private:
Ui::Widget *ui;
};

#endif // WIDGET_H

// widget.cpp

#include "widget.h"
#include "ui_widget.h"

Widget::Widget(QWidget *parent) :
QWidget(parent),
ui(new Ui::Widget)
{
ui->setupUi(this);
}

Widget::~Widget()
{
delete ui;
}


Added after 13 minutes:

I solved it by using a stacked layout in base, and adding widget to that.