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# dialog.cpp Example File
layouts/basiclayouts/dialog.cpp

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    ** Copyright (C) 2004-2006 Trolltech ASA. All rights reserved.
    **
    ** This file is part of the example classes of the Qt Toolkit.
    **
    ** Licensees holding valid Qt Preview licenses may use this file in
    ** accordance with the Qt Preview License Agreement provided with the
    ** Software.
    **
    ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
    ** information about Qt Commercial License Agreements.
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    ** Contact info@trolltech.com if any conditions of this licensing are
    ** not clear to you.
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    ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
    ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
    **
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    #include <QtGui>

    #include "dialog.h"

    Dialog::Dialog()
    {
        createMenu();
        createHorizontalGroupBox();
        createGridGroupBox();

        bigEditor = new QTextEdit;
        bigEditor->setPlainText(tr("This widget takes up all the remaining space "
                                   "in the top-level layout."));

        buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok
                                         | QDialogButtonBox::Cancel);

        connect(buttonBox, SIGNAL(accepted()), this, SLOT(accept()));
        connect(buttonBox, SIGNAL(rejected()), this, SLOT(reject()));

        QVBoxLayout *mainLayout = new QVBoxLayout;
        mainLayout->setMenuBar(menuBar);
        mainLayout->addWidget(horizontalGroupBox);
        mainLayout->addWidget(gridGroupBox);
        mainLayout->addWidget(bigEditor);
        mainLayout->addWidget(buttonBox);
        setLayout(mainLayout);

        setWindowTitle(tr("Basic Layouts"));
    }

    void Dialog::createMenu()
    {
        menuBar = new QMenuBar;

        fileMenu = new QMenu(tr("&File"), this);
        exitAction = fileMenu->addAction(tr("E&xit"));
        menuBar->addMenu(fileMenu);

        connect(exitAction, SIGNAL(triggered()), this, SLOT(accept()));
    }

    void Dialog::createHorizontalGroupBox()
    {
        horizontalGroupBox = new QGroupBox(tr("Horizontal layout"));
        QHBoxLayout *layout = new QHBoxLayout;

        for (int i = 0; i < NumButtons; ++i) {
            buttons[i] = new QPushButton(tr("Button %1").arg(i + 1));
            layout->addWidget(buttons[i]);
        }
        horizontalGroupBox->setLayout(layout);
    }

    void Dialog::createGridGroupBox()
    {
        gridGroupBox = new QGroupBox(tr("Grid layout"));
        QGridLayout *layout = new QGridLayout;

        for (int i = 0; i < NumGridRows; ++i) {
            labels[i] = new QLabel(tr("Line %1:").arg(i + 1));
            lineEdits[i] = new QLineEdit;
            layout->addWidget(labels[i], i + 1, 0);
            layout->addWidget(lineEdits[i], i + 1, 1);
        }

        smallEditor = new QTextEdit;
        smallEditor->setPlainText(tr("This widget takes up about two thirds of the "
                                     "grid layout."));
        layout->addWidget(smallEditor, 0, 2, 4, 1);

        layout->setColumnStretch(1, 10);
        layout->setColumnStretch(2, 20);
        gridGroupBox->setLayout(layout);
    }