author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 31 Aug 2010 15:15:02 +0300 | |
branch | RCL_3 |
changeset 45 | cce62ebc198e |
permissions | -rw-r--r-- |
45
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/* |
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* |
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*/ |
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#ifndef RADIOSTATION_H_ |
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#define RADIOSTATION_H_ |
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// System includes |
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#include <QObject> |
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#include <QSharedDataPointer> |
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#include <QString> |
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#include <QMetaType> |
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// User includes |
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#include "radiouiengineexport.h" |
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#include "radio_global.h" |
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// Constants |
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// Forward declarations |
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class RadioStationPrivate; |
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|
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// Class declaration |
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|
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/*! |
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* RadioStation is a data container that holds all information of a radio station. |
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* It is implicitly shared to make it cheap to copy and pass around as a signal parameter. |
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* It uses the "shared null" idiom to initialize empty instances quickly and efficiently. |
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* |
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* Note! It is derived from QObject even though architecturally it shouldn't be. |
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* It is done only to satisfy the WINSCW build which doesn't export the destructor in UREL |
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* build. This causes mismatching def files and annoying warnings. Deriving from QObject fixes this |
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*/ |
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class UI_ENGINE_DLL_EXPORT RadioStation : public QObject |
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{ |
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friend class RadioStationModel; |
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friend class RadioStationModelPrivate; |
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friend class TestRadioUiEngine; |
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friend class TestRadioPresetStorage; |
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public: |
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|
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/** |
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* Flags to indicate how the RadioStation has changed since last save or reset. |
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* Declared to use QFlags<> to ease flag usage and to enforce type safety |
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*/ |
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enum ChangeFlag |
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{ |
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NoChange = 0 |
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,PersistentDataChanged = 1 << 0 |
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,NameChanged = 1 << 1 |
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,FavoriteChanged = 1 << 2 |
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,GenreChanged = 1 << 3 |
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,UrlChanged = 1 << 4 |
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,TypeChanged = 1 << 5 |
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,PiCodeChanged = 1 << 6 |
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,PsTypeChanged = 1 << 7 |
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,RadioTextChanged = 1 << 8 |
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,DynamicPsChanged = 1 << 9 |
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}; |
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Q_DECLARE_FLAGS( Change, ChangeFlag ) |
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|
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/** |
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* Flags ot indicate station type. |
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* Declared to use QFlags<> to ease flag usage and to enforce type safety |
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*/ |
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enum TypeFlag |
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{ |
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Favorite = 1 << 0, |
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LocalStation = 1 << 1, |
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PreDefined = 1 << 2, |
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ManualStation = 1 << 3 |
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}; |
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Q_DECLARE_FLAGS( Type, TypeFlag ) |
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|
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/** |
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* Flag to indiate whether or not station uses dynamic PS and if the check has been performed |
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* Declared to use QFlags<> to ease flag usage and to enforce type safety |
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*/ |
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enum PsTypeFlag |
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{ |
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Unknown, |
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Dynamic, |
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Static |
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}; |
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Q_DECLARE_FLAGS( PsType, PsTypeFlag ) |
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|
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/** |
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* Magical values used as preset indexes to signify certain conditions. |
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* NotFound means that a find function could not find a station |
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* Invalid means that the station instance has not been initialized |
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* SharedNull identifies the empty "null" station that every newly created station points to |
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*/ |
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enum PresetFlag { NotFound = -1, Invalid = -100, SharedNull = -200 }; |
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/** |
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* Static convenience function to parse a frequency |
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*/ |
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static QString parseFrequency( uint frequency ); |
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RadioStation(); |
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RadioStation( const RadioStation& other ); |
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~RadioStation(); |
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RadioStation& operator=( const RadioStation& other ); |
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private: |
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explicit RadioStation( int presetIndex, uint frequency ); |
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void reset(); |
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void setChangeFlags( Change flags ); |
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// Setters for persistent data |
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void setPresetIndex( int presetIndex ); |
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void setFrequency( uint frequency ); |
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void setName( const QString& name ); |
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void setGenre( const int genre ); |
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void setUrl( const QString& url ); |
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bool setPiCode( int piCode, RadioRegion::Region region ); |
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// Setters for non-persistent data |
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void setPsType( PsType psType ); |
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void setRadioText( const QString& radioText ); |
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void setRadioTextPlus( const int rtPlusClass, const QString& rtPlusItem ); |
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void setDynamicPsText( const QString& dynamicPsText ); |
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public: // Getters and setters |
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// Setters & Getters for persistent data |
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bool isValid() const; |
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QString name() const; |
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void setUserDefinedName( const QString& name ); |
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bool isRenamed() const; |
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int genre() const; |
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QString frequencyString() const; |
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uint frequency() const; |
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int presetIndex() const; |
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void setFavorite( bool favorite ); |
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bool isFavorite() const; |
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QString url() const; |
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int piCode() const; |
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void setType( RadioStation::Type type ); |
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void unsetType( RadioStation::Type type ); |
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bool isType( RadioStation::Type type ) const; |
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// Convenience checkers |
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inline bool hasPiCode() const { return piCode() != -1; } |
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inline bool hasName() const { return !name().isEmpty(); } |
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inline bool hasUrl() const { return !url().isEmpty(); } |
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inline bool hasRadiotext() const { return !radioText().isEmpty(); } |
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inline bool hasDynamicPs() const { return !dynamicPsText().isEmpty(); } |
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inline bool hasGenre() const { return genre() != -1; } |
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// Getters for non-persistent data |
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PsType psType() const; |
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QString radioText() const; |
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QString dynamicPsText() const; |
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Change changeFlags() const; |
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bool hasDataChanged( Change flags ) const; |
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bool hasChanged() const; |
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void resetChangeFlags(); |
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bool hasSentRds() const; |
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private: |
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// Methods for converting PI code into call sign |
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QString piCodeToCallSign( uint programmeIdentification ); |
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QString iterateCallSign( int piBase, int programmeIdentification ); |
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QString callSignString( uint programmeIdentification ); |
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char callSignChar( uint decimalValue ); |
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private: // data |
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/** |
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* Pointer to the implicitly shared private implementation |
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* Own. |
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*/ |
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QSharedDataPointer<RadioStationPrivate> mData; |
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public: |
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/** |
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* Checks if the class is detached from implicitly shared data |
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* Required by many QT convenience functions for implicitly shared classes |
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*/ |
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bool isDetached() const; |
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typedef QSharedDataPointer<RadioStationPrivate> DataPtr; |
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inline DataPtr& data_ptr() { return mData; } |
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}; |
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Q_DECLARE_OPERATORS_FOR_FLAGS( RadioStation::Change ) |
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Q_DECLARE_OPERATORS_FOR_FLAGS( RadioStation::Type ) |
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Q_DECLARE_TYPEINFO( RadioStation, Q_MOVABLE_TYPE ); // Can be moved around in memory by containers if necessary |
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Q_DECLARE_SHARED( RadioStation ) // Uses implicit sharing |
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Q_DECLARE_METATYPE( RadioStation ) // To be usable in a QVariant |
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#endif // RADIOSTATION_H_ |