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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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// System includes
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#include <QTime>
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// User includes
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#include "radiostation.h"
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#include "radiostation_p.h"
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#include "radiologger.h"
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#include "radio_global.h"
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// Constants
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const QString KTagArtist = "artist";
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const QString KTagTitle = "title";
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const QString KLinkArtist = "<a href=\"" + KTagArtist + "\">";
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const QString KLinkTitle = "<a href=\"" + KTagTitle + "\">";
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const QString KLinkClose = "</a>";
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const char* callSign[KThreeLetterCallSignCount] =
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{"KBW", "KCY", "KDB", "KDF", "KEX", "KFH","KFI","KGA","KGB",
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"KGO", "KGU", "KGW", "KGY", "KHQ", "KID", "KIT", "KJR", "KLO",
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"KLZ", "KMA", "KMJ", "KNX", "KOA", "KOB", "KOY", "KPQ", "KQV",
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"KSD", "KSL", "KUJ", "KUT", "KVI", "KWG", "KXL", "KXO", "KYW",
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"WBT", "WBZ", "WDZ", "WEW", "WGH", "WGL", "WGN", "WGR", "WGY",
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"WHA", "WHB", "WHK", "WHO", "WHP", "WIL", "WIP", "WIS", "WJR",
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"WJW", "WJZ", "WKY", "WLS", "WLW", "WMC", "WMT", "WOC", "WOI",
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"WOL", "WOR", "WOW", "WRC", "WRR", "WSB", "WSM", "WWJ", "WWL"};
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const uint piCode[KThreeLetterCallSignCount] =
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{0x99A5, 0x99A6, 0x9990, 0x99A7, 0x9950, 0x9951, 0x9952, 0x9953,
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0x9991, 0x9954, 0x9955, 0x9956, 0x9957, 0x99AA, 0x9958, 0x9959,
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0x995A, 0x995B, 0x995C, 0x995D, 0x995E, 0x995F, 0x9960, 0x99AB,
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0x9992, 0x9993, 0x9964, 0x9994, 0x9965, 0x9966, 0x9995, 0x9967,
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0x9968, 0x9996, 0x9997, 0x996B, 0x9999, 0x996D, 0x996E, 0x996F,
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0x999A, 0x9971, 0x9972, 0x9973, 0x999B, 0x9975, 0x9976, 0x9977,
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0x9978, 0x999C, 0x999D, 0x997A, 0x99B3, 0x997B, 0x99B4, 0x99B5,
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0x997C, 0x997D, 0x997E, 0x999E, 0x999F, 0x9981, 0x99A0, 0x9983,
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0x9984, 0x99A1, 0x99B9, 0x99A2, 0x99A3, 0x99A4, 0x9988, 0x9989};
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const uint KDisableLocalAreaCoverageMask = 0x0800;
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const int KPsNameChangeThresholdSeconds = 10;
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/**
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* Static shared data instance that is used by all default-constructed RadioStation instances
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*/
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Q_GLOBAL_STATIC_WITH_ARGS( RadioStationPrivate, shared_null, ( RadioStation::SharedNull ) )
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/*!
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*
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*/
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QString RadioStation::parseFrequency( uint frequency )
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{
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QString freqString;
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freqString.sprintf( "%.1f", qreal( frequency ) / KFrequencyMultiplier );
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return freqString;
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}
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/*!
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*
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*/
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RadioStation::RadioStation() :
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QObject( 0 )
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{
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mData = shared_null();
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mData->ref.ref();
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}
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/*!
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*
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*/
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RadioStation::RadioStation( const RadioStation& other ) :
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QObject( 0 )
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{
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mData = other.mData;
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mData->ref.ref();
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}
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/*!
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*
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*/
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RadioStation::RadioStation( int presetIndex, uint frequency ) :
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QObject( 0 )
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{
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mData = new RadioStationPrivate( presetIndex, frequency );
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}
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/*!
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*
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*/
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RadioStation::~RadioStation()
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{
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decrementReferenceCount();
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}
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/*!
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*
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*/
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RadioStation& RadioStation::operator=( const RadioStation& other )
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{
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qAtomicAssign( mData, other.mData );
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return *this;
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}
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/*!
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*
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*/
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void RadioStation::reset()
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{
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decrementReferenceCount();
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mData = shared_null();
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mData->ref.ref();
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}
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/*!
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*
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*/
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void RadioStation::setChangeFlags( RadioStation::Change flags )
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{
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if ( mData->mChangeFlags != flags ) {
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detach();
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mData->mChangeFlags = flags;
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}
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}
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/*!
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*
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*/
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void RadioStation::setPresetIndex( int presetIndex )
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{
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if ( mData->mPresetIndex != presetIndex ) {
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detach();
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mData->mPresetIndex = presetIndex;
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mData->mChangeFlags |= RadioStation::PersistentDataChanged;
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}
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}
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/*!
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*
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*/
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void RadioStation::setFrequency( uint frequency )
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{
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if ( mData->mFrequency != frequency ) {
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detach();
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mData->mFrequency = frequency;
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mData->mChangeFlags |= RadioStation::PersistentDataChanged;
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}
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}
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/*!
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* Sets the preset name
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*/
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void RadioStation::setName( const QString& name )
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{
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// Name emptiness is checked because this name setter is used by incoming RDS PS name
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// and empty names should be ignored
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if ( !name.isEmpty() && !mData->mRenamedByUser && mData->mName.compare( name ) != 0 ) {
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detach();
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mData->mName = name.trimmed();
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mData->mChangeFlags |= RadioStation::PersistentDataChanged | RadioStation::NameChanged;
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// Save the time when PS name changed and if the last change was too close to the current time
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// change the PS type to dynamic if it has already been incorrectly determined to be static.
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QTime previousChange = mData->mLastPsNameChangeTime;
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mData->mLastPsNameChangeTime = QTime::currentTime();
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if ( previousChange.isValid() && mData->mPsType == RadioStation::Static &&
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previousChange.secsTo( mData->mLastPsNameChangeTime ) < KPsNameChangeThresholdSeconds ) {
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LOG( "Station changed PS name too often. PS type changed to Dynamic" );
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mData->mPsType = RadioStation::Dynamic;
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mData->mDynamicPsText = mData->mName;
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mData->mName = "";
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mData->mChangeFlags |= RadioStation::PsTypeChanged | RadioStation::DynamicPsChanged;
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mData->mCallSignCheckDone = false;
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}
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//TODO: This is a temporary thing to see some URL. Remove this
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if ( !mData->mName.isEmpty() ) {
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mData->mUrl = "<a href=\"buu\">www." + mData->mName.toLower() + ".fi</a>";
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} else {
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mData->mUrl = "";
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}
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mData->mChangeFlags |= RadioStation::UrlChanged;
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}
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}
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/*!
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*
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*/
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void RadioStation::setGenre( const int genre )
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{
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if ( mData->mGenre != genre ) {
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detach();
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mData->mGenre = genre;
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mData->mChangeFlags |= RadioStation::PersistentDataChanged | RadioStation::GenreChanged;
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}
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}
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/*!
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*
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*/
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void RadioStation::setUrl( const QString& url )
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{
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if ( mData->mUrl.compare( url ) != 0 ) {
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detach();
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mData->mUrl = url;
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mData->mChangeFlags |= RadioStation::PersistentDataChanged | RadioStation::UrlChanged;
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}
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}
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/*!
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* Sets the PI code
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* @return true if code was changed, false if not
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*/
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bool RadioStation::setPiCode( int piCode, RadioRegion::Region region )
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{
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LOG_FORMAT( "RadioStation::setPiCode new PI: %d", piCode );
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// toggling local area coverage bit code must not be interpreted as new PI code
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if( region != RadioRegion::America )
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{
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piCode &= ~KDisableLocalAreaCoverageMask;
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}
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LOG_FORMAT( "stored PI: %d", mData->mPiCode );
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LOG_FORMAT( "call sign check done: %d", mData->mCallSignCheckDone );
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//prevent executing the below code when unnessesary
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if ( mData->mPiCode != piCode || !mData->mCallSignCheckDone )
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{
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detach();
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mData->mPiCode = piCode;
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mData->mChangeFlags |= RadioStation::PersistentDataChanged | RadioStation::PiCodeChanged;
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// call sign not calculated for clear channel stations
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//TODO: Remove magic numbers
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if( ( (mData->mPiCode & 0xF000 ) >> 12 ) == 0x1 )
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{
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LOG( "Clear channel station" );
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mData->mCallSignCheckDone = true;
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}
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// if America region, not PS name received and not user renamed station
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else if ( region == RadioRegion::America && mData->mName.isEmpty() && !isRenamed() )
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{
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LOG( "Calculate call sign" );
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mData->mName = piCodeToCallSign( mData->mPiCode );
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mData->mChangeFlags |= RadioStation::NameChanged;
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}
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if ( mData->mChangeFlags.testFlag( RadioStation::PsTypeChanged ) )
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{
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LOG( "Call sign check done" );
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mData->mCallSignCheckDone = true;
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}
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return true;
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}
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return false;
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}
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/*!
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*
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*/
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void RadioStation::setPsType( PsType psType )
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{
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if ( mData->mPsType != psType ) {
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detach();
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mData->mPsType = psType;
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mData->mChangeFlags |= RadioStation::PsTypeChanged;
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}
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}
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/*!
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*
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*/
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void RadioStation::setRadioText( const QString& radioText )
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{
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if ( mData->mRadioText.compare( radioText ) != 0 ) {
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detach();
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mData->mRadioText = radioText.isEmpty() ? "" : radioText.trimmed();
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mData->mChangeFlags |= RadioStation::RadioTextChanged;
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}
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}
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/*!
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*
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*/
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void RadioStation::setRadioTextPlus( const int rtPlusClass, const QString& rtPlusItem )
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{
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if ( !mData->mRadioText.isEmpty() &&
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!rtPlusItem.isEmpty() &&
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( rtPlusClass == RtPlus::Artist || rtPlusClass == RtPlus::Title || rtPlusClass == RtPlus::Homepage) )
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{
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// Url is saved to its own variable and it is not highlighted from the radiotext
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if ( rtPlusClass == RtPlus::Homepage ) {
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setUrl( rtPlusItem );
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return;
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}
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detach();
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QString replacement = "";
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if ( rtPlusClass == RtPlus::Artist ) {
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replacement = KLinkArtist;
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} else if ( rtPlusClass == RtPlus::Title ) {
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replacement = KLinkTitle;
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}
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replacement += rtPlusItem + KLinkClose;
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mData->mRadioText.replace( rtPlusItem, replacement );
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mData->mChangeFlags |= RadioStation::RadioTextChanged;
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}
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}
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/*!
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*
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*/
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void RadioStation::setDynamicPsText( const QString& dynamicPsText )
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{
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if ( mData->mDynamicPsText.compare( dynamicPsText ) != 0 ) {
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detach();
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mData->mDynamicPsText = dynamicPsText;
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mData->mChangeFlags |= RadioStation::DynamicPsChanged;
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}
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}
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/*!
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*
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*/
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bool RadioStation::isValid() const
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{
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return mData->mPresetIndex >= 0 && mData->mFrequency > 0;
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}
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/*!
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*
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*/
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QString RadioStation::name() const
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{
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return mData->mName.isEmpty() ? "" : mData->mName;
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}
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/*!
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*
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*/
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void RadioStation::setUserDefinedName( const QString& name )
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{
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// We don't check for name emptiness because this setter is used also to remove the renaming
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// of a station by setting an empty name
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360 |
if ( mData->mName.compare( name ) != 0 ) {
|
|
|
361 |
detach();
|
|
|
362 |
mData->mName = name;
|
|
|
363 |
mData->mRenamedByUser = !name.isEmpty();
|
|
|
364 |
mData->mChangeFlags |= RadioStation::PersistentDataChanged | RadioStation::NameChanged;
|
|
|
365 |
}
|
|
|
366 |
}
|
|
|
367 |
|
|
|
368 |
/*!
|
|
|
369 |
*
|
|
|
370 |
*/
|
|
|
371 |
bool RadioStation::isRenamed() const
|
|
|
372 |
{
|
|
|
373 |
return mData->mRenamedByUser;
|
|
|
374 |
}
|
|
|
375 |
|
|
|
376 |
/*!
|
|
|
377 |
*
|
|
|
378 |
*/
|
|
|
379 |
int RadioStation::genre() const
|
|
|
380 |
{
|
|
|
381 |
return mData->mGenre;
|
|
|
382 |
}
|
|
|
383 |
|
|
|
384 |
/*!
|
|
|
385 |
*
|
|
|
386 |
*/
|
|
|
387 |
QString RadioStation::frequencyMhz() const
|
|
|
388 |
{
|
|
|
389 |
return parseFrequency( mData->mFrequency );
|
|
|
390 |
}
|
|
|
391 |
|
|
|
392 |
/*!
|
|
|
393 |
*
|
|
|
394 |
*/
|
|
|
395 |
uint RadioStation::frequency() const
|
|
|
396 |
{
|
|
|
397 |
return mData->mFrequency;
|
|
|
398 |
}
|
|
|
399 |
|
|
|
400 |
/*!
|
|
|
401 |
*
|
|
|
402 |
*/
|
|
|
403 |
int RadioStation::presetIndex() const
|
|
|
404 |
{
|
|
|
405 |
return mData->mPresetIndex;
|
|
|
406 |
}
|
|
|
407 |
|
|
|
408 |
/*!
|
|
|
409 |
*
|
|
|
410 |
*/
|
|
|
411 |
void RadioStation::setFavorite( bool favorite )
|
|
|
412 |
{
|
|
|
413 |
if ( isFavorite() != favorite ) {
|
|
|
414 |
detach();
|
|
|
415 |
favorite ? setType( RadioStation::Favorite ) : unsetType( RadioStation::Favorite );
|
|
|
416 |
mData->mChangeFlags |= RadioStation::PersistentDataChanged | RadioStation::FavoriteChanged;
|
|
|
417 |
}
|
|
|
418 |
}
|
|
|
419 |
|
|
|
420 |
/*!
|
|
|
421 |
*
|
|
|
422 |
*/
|
|
|
423 |
bool RadioStation::isFavorite() const
|
|
|
424 |
{
|
|
|
425 |
return mData->mType.testFlag( RadioStation::Favorite );
|
|
|
426 |
}
|
|
|
427 |
|
|
|
428 |
/*!
|
|
|
429 |
*
|
|
|
430 |
*/
|
|
|
431 |
QString RadioStation::url() const
|
|
|
432 |
{
|
|
|
433 |
return mData->mUrl;
|
|
|
434 |
}
|
|
|
435 |
|
|
|
436 |
/*!
|
|
|
437 |
*
|
|
|
438 |
*/
|
|
|
439 |
bool RadioStation::hasPiCode() const
|
|
|
440 |
{
|
|
|
441 |
return mData->mPiCode != -1;
|
|
|
442 |
}
|
|
|
443 |
|
|
|
444 |
/*!
|
|
|
445 |
*
|
|
|
446 |
*/
|
|
|
447 |
bool RadioStation::hasRds() const
|
|
|
448 |
{
|
|
|
449 |
return hasPiCode() ||
|
|
|
450 |
mData->mGenre != -1 ||
|
|
|
451 |
!mData->mDynamicPsText.isEmpty() ||
|
|
|
452 |
!mData->mRadioText.isEmpty() ||
|
|
|
453 |
( !mData->mName.isEmpty() && !isRenamed() );
|
|
|
454 |
}
|
|
|
455 |
|
|
|
456 |
/*!
|
|
|
457 |
*
|
|
|
458 |
*/
|
|
|
459 |
void RadioStation::setType( RadioStation::Type type )
|
|
|
460 |
{
|
|
|
461 |
if ( !isType( type ) ) {
|
|
|
462 |
detach();
|
|
|
463 |
|
|
|
464 |
// Check if favorite-status changed
|
|
|
465 |
if ( mData->mType.testFlag( RadioStation::Favorite ) != type.testFlag( RadioStation::Favorite ) ) {
|
|
|
466 |
mData->mChangeFlags |= RadioStation::FavoriteChanged;
|
|
|
467 |
}
|
|
|
468 |
|
|
|
469 |
mData->mType |= type;
|
|
|
470 |
mData->mChangeFlags |= RadioStation::PersistentDataChanged | RadioStation::TypeChanged;
|
|
|
471 |
}
|
|
|
472 |
}
|
|
|
473 |
|
|
|
474 |
/*!
|
|
|
475 |
*
|
|
|
476 |
*/
|
|
|
477 |
void RadioStation::unsetType( RadioStation::Type type )
|
|
|
478 |
{
|
|
|
479 |
if ( isType( type ) ) {
|
|
|
480 |
detach();
|
|
|
481 |
|
|
|
482 |
// Check if favorite-status changed
|
|
|
483 |
if ( mData->mType.testFlag( RadioStation::Favorite ) != type.testFlag( RadioStation::Favorite ) ) {
|
|
|
484 |
mData->mChangeFlags |= RadioStation::FavoriteChanged;
|
|
|
485 |
}
|
|
|
486 |
|
|
|
487 |
mData->mType &= ~type;
|
|
|
488 |
mData->mChangeFlags |= RadioStation::PersistentDataChanged | RadioStation::TypeChanged;
|
|
|
489 |
}
|
|
|
490 |
}
|
|
|
491 |
|
|
|
492 |
/*!
|
|
|
493 |
*
|
|
|
494 |
*/
|
|
|
495 |
bool RadioStation::isType( RadioStation::Type type ) const
|
|
|
496 |
{
|
|
|
497 |
return ( mData->mType & type ) == type;
|
|
|
498 |
}
|
|
|
499 |
|
|
|
500 |
/*!
|
|
|
501 |
*
|
|
|
502 |
*/
|
|
|
503 |
RadioStation::PsType RadioStation::psType() const
|
|
|
504 |
{
|
|
|
505 |
return mData->mPsType;
|
|
|
506 |
}
|
|
|
507 |
|
|
|
508 |
/*!
|
|
|
509 |
*
|
|
|
510 |
*/
|
|
|
511 |
QString RadioStation::radioText() const
|
|
|
512 |
{
|
|
|
513 |
return mData->mRadioText;
|
|
|
514 |
}
|
|
|
515 |
|
|
|
516 |
/*!
|
|
|
517 |
*
|
|
|
518 |
*/
|
|
|
519 |
QString RadioStation::dynamicPsText() const
|
|
|
520 |
{
|
|
|
521 |
return mData->mDynamicPsText;
|
|
|
522 |
}
|
|
|
523 |
|
|
|
524 |
/*!
|
|
|
525 |
*
|
|
|
526 |
*/
|
|
|
527 |
RadioStation::Change RadioStation::changeFlags() const
|
|
|
528 |
{
|
|
|
529 |
return mData->mChangeFlags;
|
|
|
530 |
}
|
|
|
531 |
|
|
|
532 |
/*!
|
|
|
533 |
*
|
|
|
534 |
*/
|
|
|
535 |
bool RadioStation::hasDataChanged( RadioStation::Change flags ) const
|
|
|
536 |
{
|
|
|
537 |
return ( mData->mChangeFlags & flags ) == flags;
|
|
|
538 |
}
|
|
|
539 |
|
|
|
540 |
/*!
|
|
|
541 |
*
|
|
|
542 |
*/
|
|
|
543 |
bool RadioStation::hasChanged() const
|
|
|
544 |
{
|
|
|
545 |
return mData->mChangeFlags != RadioStation::NoChange;
|
|
|
546 |
}
|
|
|
547 |
|
|
|
548 |
/*!
|
|
|
549 |
*
|
|
|
550 |
*/
|
|
|
551 |
void RadioStation::resetChangeFlags()
|
|
|
552 |
{
|
|
|
553 |
if ( mData->mChangeFlags != RadioStation::NoChange ) {
|
|
|
554 |
detach();
|
|
|
555 |
mData->mChangeFlags = RadioStation::NoChange;
|
|
|
556 |
}
|
|
|
557 |
}
|
|
|
558 |
|
|
|
559 |
/**
|
|
|
560 |
* Decrements the reference count of the implicitly shared data.
|
|
|
561 |
*/
|
|
|
562 |
void RadioStation::decrementReferenceCount()
|
|
|
563 |
{
|
|
|
564 |
if ( !mData->ref.deref() ) {
|
|
|
565 |
delete mData;
|
|
|
566 |
mData = 0;
|
|
|
567 |
}
|
|
|
568 |
}
|
|
|
569 |
|
|
|
570 |
/*!
|
|
|
571 |
*
|
|
|
572 |
*/
|
|
|
573 |
QString RadioStation::piCodeToCallSign( uint programmeIdentification )
|
|
|
574 |
{
|
|
|
575 |
QString callSign;
|
|
|
576 |
|
|
|
577 |
LOG_FORMAT( "RadioStation::piCodeToCallSign PI: %d", programmeIdentification );
|
|
|
578 |
// call signs beginning with 'K'
|
|
|
579 |
if( ( programmeIdentification>=KKxxxCallSignPiFirst ) && ( programmeIdentification < KWxxxCallSignPiFirst ) ) {
|
|
|
580 |
callSign += "K";
|
|
|
581 |
callSign += iterateCallSign( KKxxxCallSignPiFirst, programmeIdentification );
|
|
|
582 |
}
|
|
|
583 |
// call signs beginning with 'W'
|
|
|
584 |
else if (( programmeIdentification >= KWxxxCallSignPiFirst ) && ( programmeIdentification <= KWxxxCallSignPiLast )) {
|
|
|
585 |
callSign += "W";
|
|
|
586 |
callSign += iterateCallSign( KWxxxCallSignPiFirst, programmeIdentification );
|
|
|
587 |
}
|
|
|
588 |
// 3 letter only call signs
|
|
|
589 |
else if(( programmeIdentification >= KxxxCallSignPiFirst ) && ( programmeIdentification <= KxxxCallSignPiLast)) {
|
|
|
590 |
callSign += callSignString( programmeIdentification );
|
|
|
591 |
}
|
|
|
592 |
else
|
|
|
593 |
{
|
|
|
594 |
LOG( "RadioStation::piCodeToCallSign - Unhandled else" );
|
|
|
595 |
}
|
|
|
596 |
|
|
|
597 |
LOG_FORMAT( "RadioStation::piCodeToCallSign, call sign: %s", GETSTRING(callSign) );
|
|
|
598 |
|
|
|
599 |
return callSign;
|
|
|
600 |
}
|
|
|
601 |
|
|
|
602 |
/*!
|
|
|
603 |
*
|
|
|
604 |
*/
|
|
|
605 |
QString RadioStation::iterateCallSign( int piBase, int programmeIdentification )
|
|
|
606 |
{
|
|
|
607 |
QString callSign;
|
|
|
608 |
LOG_FORMAT( "RadioStation::iterateCallSign base: %d", piBase );
|
|
|
609 |
|
|
|
610 |
int sum(0), i(0);
|
|
|
611 |
|
|
|
612 |
while( sum < programmeIdentification ) {
|
|
|
613 |
i++;
|
|
|
614 |
sum = piBase + i * 676 + 0 + 0;
|
|
|
615 |
}
|
|
|
616 |
callSign += callSignChar( i - 1 );
|
|
|
617 |
|
|
|
618 |
int tmpSum( sum - 676 );
|
|
|
619 |
sum -= 676;
|
|
|
620 |
i = 0;
|
|
|
621 |
while( sum <= programmeIdentification ) {
|
|
|
622 |
i++;
|
|
|
623 |
sum = tmpSum + 0 + i * 26 + 0;
|
|
|
624 |
}
|
|
|
625 |
callSign += callSignChar( i - 1 );
|
|
|
626 |
|
|
|
627 |
tmpSum = sum - 26;
|
|
|
628 |
sum -= 26;
|
|
|
629 |
i = 0;
|
|
|
630 |
while( sum <= programmeIdentification ) {
|
|
|
631 |
i++;
|
|
|
632 |
sum = tmpSum + 0 + 0 + i;
|
|
|
633 |
}
|
|
|
634 |
callSign += callSignChar( i - 1 );
|
|
|
635 |
|
|
|
636 |
return callSign;
|
|
|
637 |
}
|
|
|
638 |
|
|
|
639 |
/*!
|
|
|
640 |
*
|
|
|
641 |
*/
|
|
|
642 |
QString RadioStation::callSignString( uint programmeIdentification )
|
|
|
643 |
{
|
|
|
644 |
for ( uint i = 0; i < KThreeLetterCallSignCount; ++i ) {
|
|
|
645 |
if( piCode[i] == programmeIdentification ) {
|
|
|
646 |
return callSign[i];
|
|
|
647 |
}
|
|
|
648 |
}
|
|
|
649 |
|
|
|
650 |
LOG_FORMAT( "RadioStation::callSignString, Not found PI: %d", programmeIdentification );
|
|
|
651 |
|
|
|
652 |
return QString("????");
|
|
|
653 |
}
|
|
|
654 |
|
|
|
655 |
/*!
|
|
|
656 |
*
|
|
|
657 |
*/
|
|
|
658 |
char RadioStation::callSignChar( uint decimalValue )
|
|
|
659 |
{
|
|
|
660 |
LOG_FORMAT( "RadioStation::callSignChar A+: %d", decimalValue );
|
|
|
661 |
if ( decimalValue <= KLastCallSignCharCode ) {
|
|
|
662 |
return static_cast<char>( 'A' + decimalValue );
|
|
|
663 |
}
|
|
|
664 |
return '?';
|
|
|
665 |
}
|
|
|
666 |
|
|
|
667 |
/**
|
|
|
668 |
* Detach from the implicitly shared data
|
|
|
669 |
*/
|
|
|
670 |
void RadioStation::detach()
|
|
|
671 |
{
|
|
|
672 |
if ( !isDetached() ) {
|
|
|
673 |
RadioStationPrivate* newData = new RadioStationPrivate( *mData );
|
|
|
674 |
|
|
|
675 |
decrementReferenceCount();
|
|
|
676 |
|
|
|
677 |
newData->ref = 1;
|
|
|
678 |
mData = newData;
|
|
|
679 |
|
|
|
680 |
// The shared null instance of the data has its preset index set to -200 (RadioStation::SharedNull).
|
|
|
681 |
// We change the preset index of the detached data to -100 (RadioStation::Invalid) just to ease
|
|
|
682 |
// debugging. This guarantees that the only instance that has value -200 is the actual shared null.
|
|
|
683 |
#ifdef _DEBUG
|
|
|
684 |
if ( mData->mPresetIndex == RadioStation::SharedNull ) {
|
|
|
685 |
mData->mPresetIndex = RadioStation::Invalid;
|
|
|
686 |
}
|
|
|
687 |
#endif
|
|
|
688 |
}
|
|
|
689 |
}
|
|
|
690 |
|
|
|
691 |
/**
|
|
|
692 |
* Checks if the class is detached from implicitly shared data
|
|
|
693 |
*/
|
|
|
694 |
bool RadioStation::isDetached() const
|
|
|
695 |
{
|
|
|
696 |
return mData->ref == 1;
|
|
|
697 |
}
|