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Diffstat (limited to 'src/sensors/qsensormanager.h')
-rw-r--r-- | src/sensors/qsensormanager.h | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/src/sensors/qsensormanager.h b/src/sensors/qsensormanager.h new file mode 100644 index 00000000..58e7fd59 --- /dev/null +++ b/src/sensors/qsensormanager.h @@ -0,0 +1,108 @@ +/**************************************************************************** +** +** 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 Qt Mobility Components. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** 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. +** +** 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. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QSENSORMANAGER_H +#define QSENSORMANAGER_H + +#include "qsensor.h" + +QT_BEGIN_NAMESPACE + +class QSensorBackend; +class QSensorBackendFactory; +class QSensorPluginInterface; + +typedef QSensorPluginInterface *(*CreatePluginFunc)(); + +class Q_SENSORS_EXPORT QSensorManager +{ +public: + // Register a backend (call this from a plugin) + static void registerBackend(const QByteArray &type, const QByteArray &identifier, QSensorBackendFactory *factory); + static void unregisterBackend(const QByteArray &type, const QByteArray &identifier); + + static bool isBackendRegistered(const QByteArray &type, const QByteArray &identifier); + + // Create a backend (uses the type and identifier set in the sensor) + static QSensorBackend *createBackend(QSensor *sensor); + + // For static plugins + static void registerStaticPlugin(CreatePluginFunc func); +}; + +class Q_SENSORS_EXPORT QSensorBackendFactory +{ +public: + virtual QSensorBackend *createBackend(QSensor *sensor) = 0; +protected: + ~QSensorBackendFactory() {} +}; + +// The default is for legacy static plugins +// This will change to Qt-style static plugins in 1.3 +#define REGISTER_STATIC_PLUGIN(pluginname) \ + REGISTER_STATIC_PLUGIN_V1(pluginname) + +// Legacy static plugins have their own registration methods. +// They can only register types. They cannot use the changes interface. +#define REGISTER_STATIC_PLUGIN_V1(pluginname) \ + static QSensorPluginInterface *create_static_plugin_ ## pluginname()\ + {\ + return new pluginname;\ + }\ + static bool side_effect_sensor_backend_ ## pluginname ()\ + {\ + QSensorManager::registerStaticPlugin(create_static_plugin_ ## pluginname);\ + return false;\ + }\ + /* This assignment calls the function above */\ + static bool dummy_sensor_backend_ ## pluginname = side_effect_sensor_backend_ ## pluginname(); + +// Qt-style static plugins use macros from Qt. +// They are handled just like regular plugins. +#define REGISTER_STATIC_PLUGIN_V2(pluginname) \ + QT_PREPEND_NAMESPACE(QObject) *qt_plugin_instance_##pluginname() Q_PLUGIN_INSTANCE(pluginname)\ + Q_IMPORT_PLUGIN(pluginname) + +QT_END_NAMESPACE + +#endif + |