text: /****************************************************************************
  **
  ** Copyright (C) 2015 The Qt Company Ltd.
  ** Contact: http://www.qt.io/licensing/
  **
  ** This file is part of the QtGui module of the Qt Toolkit.
  **
  ** $QT_BEGIN_LICENSE:LGPL21$
  ** Commercial License Usage
  ** Licensees holding valid commercial Qt licenses may use this file in
  ** accordance with the commercial license agreement provided with the
  ** Software or, alternatively, in accordance with the terms contained in
  ** a written agreement between you and The Qt Company. For licensing terms
  ** and conditions see http://www.qt.io/terms-conditions. For further
  ** information use the contact form at http://www.qt.io/contact-us.
  **
  ** 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 or version 3 as published by the Free
  ** Software Foundation and appearing in the file LICENSE.LGPLv21 and
  ** LICENSE.LGPLv3 included in the packaging of this file. Please review the
  ** following information to ensure the GNU Lesser General Public License
  ** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
  ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
  **
  ** As a special exception, The Qt Company gives you certain additional
  ** rights. These rights are described in The Qt Company LGPL Exception
  ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
  **
  ** $QT_END_LICENSE$
  **
  ****************************************************************************/
  
  #include <qpa/qplatformthemefactory_p.h>
  #include <qpa/qplatformthemeplugin.h>
  #include <QDir>
  #include "private/qfactoryloader_p.h"
  #include "qmutex.h"
  
  #include "qguiapplication.h"
  #include "qdebug.h"
  
  QT_BEGIN_NAMESPACE
  
  #ifndef QT_NO_LIBRARY
  Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, loader,
      (QPlatformThemeFactoryInterface_iid, QLatin1String("/platformthemes"), Qt::CaseInsensitive))
  Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, directLoader,
                            (QPlatformThemeFactoryInterface_iid, QLatin1String(""), Qt::CaseInsensitive))
  #endif
  
  QPlatformTheme *QPlatformThemeFactory::create(const QString& key, const QString &platformPluginPath)
  {
      QStringList paramList = key.split(QLatin1Char(':'));
      const QString platform = paramList.takeFirst().toLower();
  
  #ifndef QT_NO_LIBRARY
      // Try loading the plugin from platformPluginPath first:
      if (!platformPluginPath.isEmpty()) {
          QCoreApplication::addLibraryPath(platformPluginPath);
          if (QPlatformTheme *ret = qLoadPlugin1<QPlatformTheme, QPlatformThemePlugin>(directLoader(), platform, paramList))
              return ret;
      }
      if (QPlatformTheme *ret = qLoadPlugin1<QPlatformTheme, QPlatformThemePlugin>(loader(), platform, paramList))
             return ret;
  #endif
      return 0;
  }
  
  /*!
      Returns the list of valid keys, i.e. the keys this factory can
      create styles for.
  
      \sa create()
  */
  QStringList QPlatformThemeFactory::keys(const QString &platformPluginPath)
  {
  #ifndef QT_NO_LIBRARY
      QStringList list;
  
      if (!platformPluginPath.isEmpty()) {
          QCoreApplication::addLibraryPath(platformPluginPath);
          list += directLoader()->keyMap().values();
          if (!list.isEmpty()) {
              const QString postFix = QStringLiteral(" (from ")
                      + QDir::toNativeSeparators(platformPluginPath)
                      + QLatin1Char(')');
              const QStringList::iterator end = list.end();
              for (QStringList::iterator it = list.begin(); it != end; ++it)
                  (*it).append(postFix);
          }
      }
      list += loader()->keyMap().values();
      return list;
  #else
      return QStringList();
  #endif
  }
  
  QT_END_NAMESPACE
  