File indexing completed on 2024-05-12 04:52:09

 /*
  * dvbchannel.h
  *
  * Copyright (C) 2007-2011 Christoph Pfister <christophpfister@gmail.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License along
  * with this program; if not, write to the Free Software Foundation, Inc.,
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
 #ifndef DVBCHANNEL_H
 #define DVBCHANNEL_H
 
 #include <QObject>
 #include <QMultiHash>
 #include "../shareddata.h"
 #include "../sqlinterface.h"
 #include "dvbtransponder.h"
 
 class DvbChannel : public SharedData, public SqlKey
 {
 public:
     DvbChannel() : number(-1), networkId(-1), transportStreamId(-1), pmtPid(-1), serviceId(-1),
         audioPid(-1), hasVideo(false), isScrambled(false) { }
     ~DvbChannel() { }
 
     // checks that all variables are ok
     // updates 'pmtSectionData' if 'serviceId' is valid
     // (else updates 'serviceId' if 'pmtSectionData' is valid)
     // 'sqlKey' is ignored
     bool validate();
 
     QString name;
     int number;
 
     QString source;
     DvbTransponder transponder;
     int networkId; // may be -1 (not present), atsc meaning: source id
     int transportStreamId;
     int pmtPid;
 
     QByteArray pmtSectionData;
     int serviceId;
     int audioPid; // may be -1 (not present), doesn't have to be present in the pmt section
     bool hasVideo;
     bool isScrambled;
 };
 
 typedef ExplicitlySharedDataPointer<const DvbChannel> DvbSharedChannel;
 Q_DECLARE_TYPEINFO(DvbSharedChannel, Q_MOVABLE_TYPE);
 
 class DvbChannelId
 {
 public:
     explicit DvbChannelId(const DvbChannel *channel_) : channel(channel_) { }
     explicit DvbChannelId(const DvbSharedChannel &channel_) : channel(channel_.constData()) { }
     ~DvbChannelId() { }
 
     // compares channels by transmission type and
     // ( dvb) 'source', 'networkId', 'transportStreamId', 'serviceId'
     // (atsc) 'source', 'transponder', 'networkId'
 
     bool operator==(const DvbChannelId &other) const;
 
     bool operator!=(const DvbChannelId &other) const
     {
         return !(*this == other);
     }
 
     friend uint qHash(const DvbChannelId &channel);
 
 private:
     const DvbChannel *channel;
 };
 
 class DvbChannelModel : public QObject, private SqlInterface
 {
     Q_OBJECT
 public:
     explicit DvbChannelModel(QObject *parent);
     ~DvbChannelModel();
 
     static DvbChannelModel *createSqlModel(QObject *parent);
 
     // channel names and numbers are guaranteed to be unique within this model
 
     QMap<int, DvbSharedChannel> getChannels() const;
     DvbSharedChannel findChannelByName(const QString &channelName) const;
     bool hasChannelByName(const QString &channelName);
     DvbSharedChannel findChannelByNumber(int channelNumber) const;
     DvbSharedChannel findChannelById(const DvbChannel &channel) const;
 
     void cloneFrom(DvbChannelModel *other);
     void addChannel(DvbChannel &channel);
     void updateChannel(DvbSharedChannel channel, DvbChannel &modifiedChannel);
     void removeChannel(DvbSharedChannel channel);
     bool areInTheSameBunch(DvbSharedChannel channel1, DvbSharedChannel channel2);
     void dndMoveChannels(const QList<DvbSharedChannel> &selectedChannels,
         int insertBeforeNumber);
     void channelFlush();
 
 signals:
     void channelAdded(const DvbSharedChannel &channel);
     // if this is the main model, updating doesn't change the channel pointer
     // (modifies existing content); otherwise the channel pointer may be updated
     void channelAboutToBeUpdated(const DvbSharedChannel &channel);
     void channelUpdated(const DvbSharedChannel &channel);
     void channelRemoved(const DvbSharedChannel &channel);
 
 private:
     void bindToSqlQuery(SqlKey sqlKey, QSqlQuery &query, int index) const override;
     bool insertFromSqlQuery(SqlKey sqlKey, const QSqlQuery &query, int index) override;
 
     QString extractBaseName(const QString &name) const;
     QString findNextFreeChannelName(const QString &name) const;
     int findNextFreeChannelNumber(int number) const;
 
     QMap<QString, DvbSharedChannel> channelNames;
     QMap<int, DvbSharedChannel> channelNumbers;
     QMultiHash<DvbChannelId, DvbSharedChannel> channelIds;
     QMap<SqlKey, DvbSharedChannel> channels; // only used for the sql model
     bool hasPendingOperation;
     bool isSqlModel;
 };
 
 #endif /* DVBCHANNEL_H */