#include <QtWidgets>

#include "mainwindow.h"

class SizedTableWidget : public QTableWidget {
public:
    SizedTableWidget (int rows, int columns, QWidget *parent) :
        QTableWidget (rows, columns, parent) {}

    QSize sizeHint() const {
        return QSize (
            verticalHeader()->width()
                + horizontalHeader()->length()
                + frameWidth() * 2,
            horizontalHeader()->height()
                + verticalHeader()->length()
                + frameWidth() * 2
        );
    }
};

MainWindow::MainWindow() : textEdit(new QTextEdit) {
    setCentralWidget(textEdit);

    QDockWidget *dock = new QDockWidget(tr("Table"), this);
    dock->setAllowedAreas(Qt::LeftDockWidgetArea | Qt::RightDockWidgetArea);

    table = new SizedTableWidget (1 /* rows */, 2 /* cols */, dock);
    table->setHorizontalHeaderLabels(QStringList() << "name" << "value");

    QTableWidgetItem *nameItem = new QTableWidgetItem;
    nameItem->setText("foo");
    table->setItem(0, 0, nameItem);

    QTableWidgetItem *valueItem = new QTableWidgetItem;
    valueItem->setText("10");
    table->setItem(0, 1, valueItem);

    table->horizontalHeader()->setStretchLastSection(true);
    table->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Expanding);

    dock->setWidget(table);
    addDockWidget(Qt::RightDockWidgetArea, dock);
}