dialog.cpp Example File

 /****************************************************************************
 **
 ** Copyright (C) 2012 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.
 **
 ** $QT_BEGIN_LICENSE:BSD$
 ** You may use this file under the terms of the BSD license as follows:
 **
 ** "Redistribution and use in source and binary forms, with or without
 ** modification, are permitted provided that the following conditions are
 ** met:
 **   * Redistributions of source code must retain the above copyright
 **     notice, this list of conditions and the following disclaimer.
 **   * Redistributions in binary form must reproduce the above copyright
 **     notice, this list of conditions and the following disclaimer in
 **     the documentation and/or other materials provided with the
 **     distribution.
 **   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
 **     the names of its contributors may be used to endorse or promote
 **     products derived from this software without specific prior written
 **     permission.
 **
 ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/

 #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);
 }