Qt 4.8: stylewidget.cpp Example File (demos/embedded/styledemo/stylewidget.cpp)

Qt Reference Documentation

# stylewidget.cpp Example File

demos/embedded/styledemo/stylewidget.cpp

     /****************************************************************************
     **
     ** 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 demonstration applications of the Qt Toolkit.
     **
     ** $QT_BEGIN_LICENSE:LGPL$
     ** GNU Lesser General Public License Usage
     ** 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.
     **
     ** Other Usage
     ** Alternatively, this file may be used in accordance with the terms and
     ** conditions contained in a signed written agreement between you and Nokia.
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     **
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     **
     ****************************************************************************/
     #include <QApplication>
     #include <QString>
     #include <QFile>

     #include "stylewidget.h"

     StyleWidget::StyleWidget(QWidget *parent)
      : QFrame(parent)
     {
             m_ui.setupUi(this);
     }

     void StyleWidget::on_close_clicked()
     {
         close();
     }

     void StyleWidget::on_blueStyle_clicked()
     {
         QFile styleSheet(":/files/blue.qss");

         if (!styleSheet.open(QIODevice::ReadOnly)) {
             qWarning("Unable to open :/files/blue.qss");
             return;
         }

         qApp->setStyleSheet(styleSheet.readAll());
     }

     void StyleWidget::on_khakiStyle_clicked()
     {
         QFile styleSheet(":/files/khaki.qss");

         if (!styleSheet.open(QIODevice::ReadOnly)) {
             qWarning("Unable to open :/files/khaki.qss");
             return;
         }

         qApp->setStyleSheet(styleSheet.readAll());
     }

     void StyleWidget::on_noStyle_clicked()
     {
         QFile styleSheet(":/files/nostyle.qss");

         if (!styleSheet.open(QIODevice::ReadOnly)) {
             qWarning("Unable to open :/files/nostyle.qss");
             return;
         }

         qApp->setStyleSheet(styleSheet.readAll());
     }

     void StyleWidget::on_transparentStyle_clicked()
     {
         QFile styleSheet(":/files/transparent.qss");

         if (!styleSheet.open(QIODevice::ReadOnly)) {
             qWarning("Unable to open :/files/transparent.qss");
             return;
         }

         qApp->setStyleSheet(styleSheet.readAll());
     }