C++/Qt/Layout — различия между версиями

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Текущая версия на 13:25, 25 мая 2010

Basic layout

<source lang="cpp"> /****************************************************************************

    • 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.
    • $QT_END_LICENSE$
                                                                                                                                                        • /
  1. ifndef DIALOG_H
  2. define DIALOG_H
  3. 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;

};

  1. endif


  1. include <QtGui>
  2. 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);

}


  1. include <QApplication>
  2. include "dialog.h"

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

   QApplication app(argc, argv);
   Dialog dialog;
   return dialog.exec();

} 


 </source>


Dynamic layout

<source lang="cpp"> /****************************************************************************

    • 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.
    • $QT_END_LICENSE$
                                                                                                                                                        • /
  1. ifndef DIALOG_H
  2. define DIALOG_H
  3. include <QDialog>
  4. 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;

};

  1. endif


  1. include <QtGui>
  2. 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()));

}


  1. include <QApplication>
  2. include "dialog.h"

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

   QApplication app(argc, argv);
   Dialog dialog;
   return dialog.exec();

} 


 </source>


Grid Layout

<source lang="cpp"> /****************************************************************************

    • 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.
    • $QT_END_LICENSE$
                                                                                                                                                        • /
  1. 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();

} 


 </source>


Horizontal BoxLayout

<source lang="cpp"> /****************************************************************************

    • 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.
    • $QT_END_LICENSE$
                                                                                                                                                        • /
  1. 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();

} 


 </source>


Layout two labels

<source lang="cpp">

  1. include <QApplication>
  2. include <QVBoxLayout>
  3. 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();

} 


 </source>


Nested layout

<source lang="cpp"> /****************************************************************************

    • 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.
    • $QT_END_LICENSE$
                                                                                                                                                        • /
  1. 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();

} 


 </source>


Pass window pointer to a Layout manager

<source lang="cpp"> Layout two labels

  1. include <QApplication>
  2. include <QVBoxLayout>
  3. 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();

} 


 </source>


Window layout

<source lang="cpp"> /****************************************************************************

    • 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.
    • $QT_END_LICENSE$
                                                                                                                                                        • /
  1. 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();

} 


 </source>
Источник — «http://cppe.ru/index.php?title=C%2B%2B/Qt/Layout&oldid=1251»