C++/Qt/Layout

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Basic layout

  
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights.  These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef DIALOG_H
#define DIALOG_H
#include <QDialog>
QT_BEGIN_NAMESPACE
class QAction;
class QDialogButtonBox;
class QGroupBox;
class QLabel;
class QLineEdit;
class QMenu;
class QMenuBar;
class QPushButton;
class QTextEdit;
QT_END_NAMESPACE

class Dialog : public QDialog
{
    Q_OBJECT
public:
    Dialog();
private:
    void createMenu();
    void createHorizontalGroupBox();
    void createGridGroupBox();
    void createFormGroupBox();
    enum { NumGridRows = 3, NumButtons = 4 };
    QMenuBar *menuBar;
    QGroupBox *horizontalGroupBox;
    QGroupBox *gridGroupBox;
    QGroupBox *formGroupBox;
    QTextEdit *smallEditor;
    QTextEdit *bigEditor;
    QLabel *labels[NumGridRows];
    QLineEdit *lineEdits[NumGridRows];
    QPushButton *buttons[NumButtons];
    QDialogButtonBox *buttonBox;
    QMenu *fileMenu;
    QAction *exitAction;
};

#endif


#include <QtGui>
#include "dialog.h"

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

    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(formGroupBox);
    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);
}

void Dialog::createFormGroupBox()
{
    formGroupBox = new QGroupBox(tr("Form layout"));
    QFormLayout *layout = new QFormLayout;
    layout->addRow(new QLabel(tr("Line 1:")), new QLineEdit);
    layout->addRow(new QLabel(tr("Line 2, long text:")), new QComboBox);
    layout->addRow(new QLabel(tr("Line 3:")), new QSpinBox);
    formGroupBox->setLayout(layout);
}



#include <QApplication>
#include "dialog.h"
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    Dialog dialog;
    return dialog.exec();
}


Dynamic layout

  
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights.  These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef DIALOG_H
#define DIALOG_H
#include <QDialog>
#include <QQueue>
QT_BEGIN_NAMESPACE
class QComboBox;
class QDialogButtonBox;
class QGridLayout;
class QGroupBox;
class QLabel;
class QPushButton;
QT_END_NAMESPACE
class Dialog : public QDialog
{
    Q_OBJECT
public:
    Dialog(QWidget *parent = 0);
private slots:
    void buttonsOrientationChanged(int index);
    void rotateWidgets();
    void help();
private:
    void createRotableGroupBox();
    void createOptionsGroupBox();
    void createButtonBox();
    QGroupBox *rotableGroupBox;
    QQueue<QWidget *> rotableWidgets;
    QGroupBox *optionsGroupBox;
    QLabel *buttonsOrientationLabel;
    QComboBox *buttonsOrientationComboBox;
    QDialogButtonBox *buttonBox;
    QPushButton *closeButton;
    QPushButton *helpButton;
    QPushButton *rotateWidgetsButton;
    QGridLayout *mainLayout;
    QGridLayout *rotableLayout;
    QGridLayout *optionsLayout;
};
#endif


#include <QtGui>
#include "dialog.h"
Dialog::Dialog(QWidget *parent)
    : QDialog(parent)
{
    createRotableGroupBox();
    createOptionsGroupBox();
    createButtonBox();
    mainLayout = new QGridLayout;
    mainLayout->addWidget(rotableGroupBox, 0, 0);
    mainLayout->addWidget(optionsGroupBox, 1, 0);
    mainLayout->addWidget(buttonBox, 2, 0);
    setLayout(mainLayout);
    mainLayout->setSizeConstraint(QLayout::SetMinimumSize);
    setWindowTitle(tr("Dynamic Layouts"));
}
void Dialog::buttonsOrientationChanged(int index)
{
    mainLayout->setSizeConstraint(QLayout::SetNoConstraint);
    setMinimumSize(0, 0);
    Qt::Orientation orientation = Qt::Orientation(
            buttonsOrientationComboBox->itemData(index).toInt());
    if (orientation == buttonBox->orientation())
        return;
    mainLayout->removeWidget(buttonBox);
    int spacing = mainLayout->spacing();
    QSize oldSizeHint = buttonBox->sizeHint() + QSize(spacing, spacing);
    buttonBox->setOrientation(orientation);
    QSize newSizeHint = buttonBox->sizeHint() + QSize(spacing, spacing);
    if (orientation == Qt::Horizontal) {
        mainLayout->addWidget(buttonBox, 2, 0);
        resize(size() + QSize(-oldSizeHint.width(), newSizeHint.height()));
    } else {
        mainLayout->addWidget(buttonBox, 0, 3, 2, 1);
        resize(size() + QSize(newSizeHint.width(), -oldSizeHint.height()));
    }
    mainLayout->setSizeConstraint(QLayout::SetDefaultConstraint);
}
void Dialog::rotateWidgets()
{
    Q_ASSERT(rotableWidgets.count() % 2 == 0);
    foreach (QWidget *widget, rotableWidgets)
        rotableLayout->removeWidget(widget);
    rotableWidgets.enqueue(rotableWidgets.dequeue());
    const int n = rotableWidgets.count();
    for (int i = 0; i < n / 2; ++i) {
        rotableLayout->addWidget(rotableWidgets[n - i - 1], 0, i);
        rotableLayout->addWidget(rotableWidgets[i], 1, i);
    }
}
void Dialog::help()
{
    QMessageBox::information(this, tr("Dynamic Layouts Help"),
                               tr("This example shows how to change layouts "
                                  "dynamically."));
}
void Dialog::createRotableGroupBox()
{
    rotableGroupBox = new QGroupBox(tr("Rotable Widgets"));
    rotableWidgets.enqueue(new QSpinBox);
    rotableWidgets.enqueue(new QSlider);
    rotableWidgets.enqueue(new QDial);
    rotableWidgets.enqueue(new QProgressBar);
    int n = rotableWidgets.count();
    for (int i = 0; i < n; ++i) {
        connect(rotableWidgets[i], SIGNAL(valueChanged(int)),
                rotableWidgets[(i + 1) % n], SLOT(setValue(int)));
    }
    rotableLayout = new QGridLayout;
    rotableGroupBox->setLayout(rotableLayout);
    rotateWidgets();
}
void Dialog::createOptionsGroupBox()
{
    optionsGroupBox = new QGroupBox(tr("Options"));
    buttonsOrientationLabel = new QLabel(tr("Orientation of buttons:"));
    buttonsOrientationComboBox = new QComboBox;
    buttonsOrientationComboBox->addItem(tr("Horizontal"), Qt::Horizontal);
    buttonsOrientationComboBox->addItem(tr("Vertical"), Qt::Vertical);
    connect(buttonsOrientationComboBox, SIGNAL(currentIndexChanged(int)),
            this, SLOT(buttonsOrientationChanged(int)));
    optionsLayout = new QGridLayout;
    optionsLayout->addWidget(buttonsOrientationLabel, 0, 0);
    optionsLayout->addWidget(buttonsOrientationComboBox, 0, 1);
    optionsLayout->setColumnStretch(2, 1);
    optionsGroupBox->setLayout(optionsLayout);
}
void Dialog::createButtonBox()
{
    buttonBox = new QDialogButtonBox;
    closeButton = buttonBox->addButton(QDialogButtonBox::Close);
    helpButton = buttonBox->addButton(QDialogButtonBox::Help);
    rotateWidgetsButton = buttonBox->addButton(tr("Rotate &Widgets"),
                                               QDialogButtonBox::ActionRole);
    connect(rotateWidgetsButton, SIGNAL(clicked()), this, SLOT(rotateWidgets()));
    connect(closeButton, SIGNAL(clicked()), this, SLOT(close()));
    connect(helpButton, SIGNAL(clicked()), this, SLOT(help()));
}



#include <QApplication>
#include "dialog.h"
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    Dialog dialog;
    return dialog.exec();
}


Grid Layout

  
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights.  These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtGui>
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    {
    QWidget *window = new QWidget;
    QPushButton *button1 = new QPushButton("One");
    QPushButton *button2 = new QPushButton("Two");
    QPushButton *button3 = new QPushButton("Three");
    QPushButton *button4 = new QPushButton("Four");
    QPushButton *button5 = new QPushButton("Five");
    QGridLayout *layout = new QGridLayout;
    layout->addWidget(button1, 0, 0);
    layout->addWidget(button2, 0, 1);
    layout->addWidget(button3, 1, 0, 1, 2);
    layout->addWidget(button4, 2, 0);
    layout->addWidget(button5, 2, 1);
    window->setLayout(layout);
    window->show();
    }
   
    return app.exec();
}


Horizontal BoxLayout

  
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights.  These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtGui>
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    {
    QWidget *window = new QWidget;
    QPushButton *button1 = new QPushButton("One");
    QPushButton *button2 = new QPushButton("Two");
    QPushButton *button3 = new QPushButton("Three");
    QPushButton *button4 = new QPushButton("Four");
    QPushButton *button5 = new QPushButton("Five");
    QHBoxLayout *layout = new QHBoxLayout;
    layout->addWidget(button1);
    layout->addWidget(button2);
    layout->addWidget(button3);
    layout->addWidget(button4);
    layout->addWidget(button5);
    window->setLayout(layout);
    window->show();
    }
   
    return app.exec();
}


Layout two labels

  
#include <QApplication>
#include <QVBoxLayout>
#include <QLabel>
int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    QWidget window;
    QVBoxLayout* mainLayout = new QVBoxLayout(&window);
    QLabel* label1 = new QLabel("One");
    QLabel* label2 = new QLabel("Two");
    mainLayout->addWidget(label1);
    mainLayout->addWidget(label2);
    window.show();
    return a.exec();
}


Nested layout

  
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights.  These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtGui>
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    QWidget *window = new QWidget();
//! [create, lay out widgets and show]
    QLabel *queryLabel = new QLabel(tr("Query:"));
    QLineEdit *queryEdit = new QLineEdit();
    QTableView *resultView = new QTableView();
    QHBoxLayout *queryLayout = new QHBoxLayout();
    queryLayout->addWidget(queryLabel);
    queryLayout->addWidget(queryEdit);
    QVBoxLayout *mainLayout = new QVBoxLayout();
    mainLayout->addLayout(queryLayout);
    mainLayout->addWidget(resultView);
    window->setLayout(mainLayout);
//! [create, lay out widgets and show]
    QStandardItemModel model;
    model.setHorizontalHeaderLabels(QStringList() << tr("Name") << tr("Office"));
    QList<QStringList> rows = QList<QStringList>()
        << (QStringList() << "Verne Nilsen" << "123")
        << (QStringList() << "Carlos Tang" << "77")
        << (QStringList() << "Bronwyn Hawcroft" << "119")
        << (QStringList() << "Alessandro Hanssen" << "32")
        << (QStringList() << "Andrew John Bakken" << "54")
        << (QStringList() << "Vanessa Weatherley" << "85")
        << (QStringList() << "Rebecca Dickens" << "17")
        << (QStringList() << "David Bradley" << "42")
        << (QStringList() << "Knut Walters" << "25")
        << (QStringList() << "Andrea Jones" << "34");
    foreach (QStringList row, rows) {
        QList<QStandardItem *> items;
        foreach (QString text, row)
            items.append(new QStandardItem(text));
        model.appendRow(items);
    }
    resultView->setModel(&model);
    resultView->verticalHeader()->hide();
    resultView->horizontalHeader()->setStretchLastSection(true);
    window->setWindowTitle(tr("Nested layouts"));
    window->show();
    return app.exec();
}


Pass window pointer to a Layout manager

  
Layout two labels 
#include <QApplication>
#include <QVBoxLayout>
#include <QLabel>
int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    QWidget window;
    QVBoxLayout* mainLayout = new QVBoxLayout(&window);
    QLabel* label1 = new QLabel("One");
    QLabel* label2 = new QLabel("Two");
    mainLayout->addWidget(label1);
    mainLayout->addWidget(label2);
    window.show();
    return a.exec();
}


Window layout

  
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights.  These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtGui>
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    QWidget *window = new QWidget();
//! [create, lay out widgets and show]
    QLabel *label = new QLabel(tr("Name:"));
    QLineEdit *lineEdit = new QLineEdit();
    QHBoxLayout *layout = new QHBoxLayout();
    layout->addWidget(label);
    layout->addWidget(lineEdit);
    window->setLayout(layout);
//! [create, lay out widgets and show]
    window->setWindowTitle(tr("Window layout"));
    window->show();
    return app.exec();
}