qdecorationfactory_qws.rar_The Class

#include "qdecorationfactory_qws.h" #include "qdecorationplugin_qws.h" #include "private/qfactoryloader_p.h" #include "qmutex.h" #include "qapplication.h" #include "qdecorationdefault_qws.h" #include "qdecorationwindows_qws.h" #include "qdecorationstyled_qws.h" QT_BEGIN_NAMESPACE #ifndef QT_NO_LIBRARY Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, loader, (QDecorationFactoryInterface_iid, QLatin1String("/decorations"), Qt::CaseInsensitive)) #endif /*! \class QDecorationFactory \ingroup qws \ingroup appearance \brief The QDecorationFactory class creates window decorations in Qt for Embedded Linux. Note that this class is only available in \l{Qt for Embedded Linux}. QDecorationFactory is used to detect and instantiate the available decorations, allowing \l{Qt for Embedded Linux} to load the preferred decoration into the application at runtime. The create() function returns a QDecoration object representing the decoration identified by a given key. The valid keys (i.e. the supported decorations) can be retrieved using the keys() function. \l{Qt for Embedded Linux} provides three built-in decorations: \c Default, \c Styled and \c Windows. In addition, custom decorations can be added using Qt's \l {How to Create Qt Plugins}{plugin mechanism}, i.e. by subclassing the QDecoration class and creating a mouse driver plugin (QDecorationPlugin). \sa QDecoration, QDecorationPlugin */ /*! Creates the decoration specified by the given \a key. Note that the keys are case-insensitive. \sa keys() */ QDecoration *QDecorationFactory::create(const QString& key) { QDecoration *ret = 0; QString decoration = key.toLower(); #ifndef QT_NO_QWS_DECORATION_DEFAULT if (decoration == QLatin1String("default")) ret = new QDecorationDefault; else #endif #ifndef QT_NO_QWS_DECORATION_WINDOWS if (decoration == QLatin1String("windows")) ret = new QDecorationWindows; else #endif #ifndef QT_NO_QWS_DECORATION_STYLED if (decoration == QLatin1String("styled")) ret = new QDecorationStyled; else #endif { } // Keep these here - they make the #ifdefery above work #ifndef QT_NO_LIBRARY if (!ret) { if (QDecorationFactoryInterface *factory = qobject_cast<QDecorationFactoryInterface*>(loader()->instance(decoration))) { ret = factory->create(decoration); } } #endif return ret; } /*! Returns the list of valid keys, i.e., the available decorations. \sa create() */ QStringList QDecorationFactory::keys() { QStringList list; #ifndef QT_NO_QWS_DECORATION_STYLED list << QLatin1String("Styled"); #endif #ifndef QT_NO_QWS_DECORATION_DEFAULT list << QLatin1String("Default"); #endif #ifndef QT_NO_QWS_DECORATION_WINDOWS list << QLatin1String("Windows"); #endif #if !defined(Q_OS_WIN32) || defined(QT_MAKEDLL) #ifndef QT_NO_LIBRARY QStringList plugins = loader()->keys(); for (int i = 0; i < plugins.size(); ++i) { if (!list.contains(plugins.at(i))) list += plugins.at(i); } #endif //QT_NO_LIBRARY #endif //QT_MAKEDLL return list; } QT_END_NAMESPACE