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# previewwindow.cpp Example File
widgets/windowflags/previewwindow.cpp

     /****************************************************************************
     **
     ** Copyright (C) 2010 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.
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     ** rights.  These rights are described in the Nokia Qt LGPL Exception
     ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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     ** 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.
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     #include <QtGui>

     #include "previewwindow.h"

     PreviewWindow::PreviewWindow(QWidget *parent)
         : QWidget(parent)
     {
         textEdit = new QTextEdit;
         textEdit->setReadOnly(true);
         textEdit->setLineWrapMode(QTextEdit::NoWrap);

         closeButton = new QPushButton(tr("&Close"));
         connect(closeButton, SIGNAL(clicked()), this, SLOT(close()));

         QVBoxLayout *layout = new QVBoxLayout;
         layout->addWidget(textEdit);
         layout->addWidget(closeButton);
         setLayout(layout);

         setWindowTitle(tr("Preview"));
     }

     void PreviewWindow::setWindowFlags(Qt::WindowFlags flags)
     {
         QWidget::setWindowFlags(flags);

         QString text;

         Qt::WindowFlags type = (flags & Qt::WindowType_Mask);
         if (type == Qt::Window) {
             text = "Qt::Window";
         } else if (type == Qt::Dialog) {
             text = "Qt::Dialog";
         } else if (type == Qt::Sheet) {
             text = "Qt::Sheet";
         } else if (type == Qt::Drawer) {
             text = "Qt::Drawer";
         } else if (type == Qt::Popup) {
             text = "Qt::Popup";
         } else if (type == Qt::Tool) {
             text = "Qt::Tool";
         } else if (type == Qt::ToolTip) {
             text = "Qt::ToolTip";
         } else if (type == Qt::SplashScreen) {
             text = "Qt::SplashScreen";
         }

         if (flags & Qt::MSWindowsFixedSizeDialogHint)
             text += "\n| Qt::MSWindowsFixedSizeDialogHint";
         if (flags & Qt::X11BypassWindowManagerHint)
             text += "\n| Qt::X11BypassWindowManagerHint";
         if (flags & Qt::FramelessWindowHint)
             text += "\n| Qt::FramelessWindowHint";
         if (flags & Qt::WindowTitleHint)
             text += "\n| Qt::WindowTitleHint";
         if (flags & Qt::WindowSystemMenuHint)
             text += "\n| Qt::WindowSystemMenuHint";
         if (flags & Qt::WindowMinimizeButtonHint)
             text += "\n| Qt::WindowMinimizeButtonHint";
         if (flags & Qt::WindowMaximizeButtonHint)
             text += "\n| Qt::WindowMaximizeButtonHint";
         if (flags & Qt::WindowCloseButtonHint)
             text += "\n| Qt::WindowCloseButtonHint";
         if (flags & Qt::WindowContextHelpButtonHint)
             text += "\n| Qt::WindowContextHelpButtonHint";
         if (flags & Qt::WindowShadeButtonHint)
             text += "\n| Qt::WindowShadeButtonHint";
         if (flags & Qt::WindowStaysOnTopHint)
             text += "\n| Qt::WindowStaysOnTopHint";
         if (flags & Qt::CustomizeWindowHint)
             text += "\n| Qt::CustomizeWindowHint";

         textEdit->setPlainText(text);
     }