C++ CPVRChannel类代码示例

bool CPVRChannelGroupInternal::AddToGroup(CPVRChannel &channel, int iChannelNumber /* = 0 */)
{
  CSingleLock lock(m_critSection);

  bool bReturn(false);

  /* get the actual channel since this is called from a fileitemlist copy */
  CPVRChannelPtr realChannel = GetByChannelID(channel.ChannelID());
  if (!realChannel)
    return bReturn;

  /* switch the hidden flag */
  if (realChannel->IsHidden())
  {
    realChannel->SetHidden(false);
    m_iHiddenChannels--;

    SortAndRenumber();
  }

  /* move this channel and persist */
  bReturn = (iChannelNumber > 0l) ?
    MoveChannel(realChannel->ChannelNumber(), iChannelNumber, true) :
    MoveChannel(realChannel->ChannelNumber(), m_members.size() - m_iHiddenChannels, true);

  if (m_bLoaded)
    realChannel->Persist();
  return bReturn;
}

int CPVREpgs::GetEPGAll(CFileItemList* results, bool bRadio /* = false */)
{
  int iInitialSize = results->Size();

  for (unsigned int iEpgPtr = 0; iEpgPtr < size(); iEpgPtr++)
  {
    CPVREpg *epg = at(iEpgPtr);
    CPVRChannel *channel = at(iEpgPtr)->Channel();
    if (!channel || channel->IsRadio() != bRadio)
      continue;

    epg->Get(results);
  }

  return results->Size() - iInitialSize;
}

bool CPVRTimers::ChannelHasTimers(const CPVRChannel &channel)
{
  CSingleLock lock(m_critSection);
  for (map<CDateTime, vector<CPVRTimerInfoTag *>* >::iterator it = m_tags.begin(); it != m_tags.end(); it++)
  {
    for (unsigned int iTimerPtr = 0; iTimerPtr < it->second->size(); iTimerPtr++)
    {
      CPVRTimerInfoTag *timer = it->second->at(iTimerPtr);

      if (timer->ChannelNumber() == channel.ChannelNumber() && timer->m_bIsRadio == channel.IsRadio())
        return true;
    }
  }

  return false;
}

void CGUIDialogPVRGuideOSD::Update()
{
  // lock our display, as this window is rendered from the player thread
  g_graphicsContext.Lock();
  m_viewControl.SetCurrentView(DEFAULT_VIEW_LIST);

  // empty the list ready for population
  Clear();

  CPVRChannel CurrentChannel;
  if (g_PVRManager.GetCurrentChannel(&CurrentChannel))
    CurrentChannel.GetEPG(m_vecItems);

  m_viewControl.SetItems(*m_vecItems);
  g_graphicsContext.Unlock();
}

bool CPVRChannelGroup::ToggleChannelLocked(const CFileItem &item)
{
  if (!item.HasPVRChannelInfoTag())
    return false;

  CSingleLock lock(m_critSection);

  /* get the real channel from the group */
  CPVRChannel *channel = GetByUniqueID(item.GetPVRChannelInfoTag()->UniqueID());
  if (!channel)
    return false;

  channel->SetLocked(!channel->IsLocked());

  return true;
}

bool CPVRDatabase::DeleteChannelSettings(const CPVRChannel &channel)
{
  bool bReturn(false);

  /* invalid channel */
  if (channel.ChannelID() <= 0)
  {
    CLog::Log(LOGERROR, "PVR - %s - invalid channel id: %i", __FUNCTION__, channel.ChannelID());
    return bReturn;
  }

  Filter filter;
  filter.AppendWhere(PrepareSQL("idChannel = %u", channel.ChannelID()));

  return DeleteValues("channelsettings", filter);
}

bool CPVRClient::SwitchChannel(const CPVRChannel &channel)
{
  bool bSwitched(false);

  if (IsPlayingLiveStream() && CanPlayChannel(channel))
  {
    PVR_CHANNEL tag;
    WriteClientChannelInfo(channel, tag);
    try
    {
      bSwitched = m_pStruct->SwitchChannel(tag);
    }
    catch (std::exception &e) { LogException(e, __FUNCTION__); }
  }

  if (bSwitched)
  {
    CPVRChannelPtr currentChannel = g_PVRChannelGroups->GetByUniqueID(channel.UniqueID(), channel.ClientID());
    CSingleLock lock(m_critSection);
    ResetQualityData(m_qualityInfo);
    m_playingChannel = currentChannel;
  }

  return bSwitched;
}

void CGUIDialogPVRChannelsOSD::Update()
{
  // lock our display, as this window is rendered from the player thread
  g_graphicsContext.Lock();
  m_viewControl.SetCurrentView(DEFAULT_VIEW_LIST);

  // empty the list ready for population
  Clear();

  CPVRChannel channel;
  CPVRManager::Get()->GetCurrentChannel(&channel);
  CPVRManager::Get()->GetPlayingGroup(channel.IsRadio())->GetMembers(m_vecItems);
  m_viewControl.SetItems(*m_vecItems);
  m_viewControl.SetSelectedItem(channel.ChannelNumber() - 1);
  g_graphicsContext.Unlock();
}

bool CEpg::Update(const time_t start, const time_t end, int iUpdateTime, bool bForceUpdate /* = false */)
{
  bool bGrabSuccess(true);
  bool bUpdate(false);

  /* load the entries from the db first */
  if (!m_bLoaded && !g_EpgContainer.IgnoreDB())
    Load();

  /* clean up if needed */
  if (m_bLoaded)
    Cleanup();

  /* get the last update time from the database */
  CDateTime lastScanTime = GetLastScanTime();

  if (!bForceUpdate)
  {
    /* check if we have to update */
    time_t iNow = 0;
    time_t iLastUpdate = 0;
    CDateTime::GetCurrentDateTime().GetAsUTCDateTime().GetAsTime(iNow);
    lastScanTime.GetAsTime(iLastUpdate);
    bUpdate = (iNow > iLastUpdate + iUpdateTime);
  }
  else
    bUpdate = true;

  if (bUpdate)
    bGrabSuccess = LoadFromClients(start, end);

  if (bGrabSuccess)
  {
    CPVRChannel channel;
    if (g_PVRManager.GetCurrentChannel(channel))
      if (channel.EpgID() == m_iEpgID)
        g_PVRManager.ResetPlayingTag();
    m_bLoaded = true;
  }
  else
    CLog::Log(LOGERROR, "EPG - %s - failed to update table '%s'", __FUNCTION__, Name().c_str());

  CSingleLock lock(m_critSection);
  m_bUpdatePending = false;

  return bGrabSuccess;
}

void CGUIWindowPVRGuide::UpdateViewTimeline(void)
{
  CPVRChannel CurrentChannel;
  bool bGotCurrentChannel = CPVRManager::Get()->GetCurrentChannel(&CurrentChannel);
  bool bRadio = bGotCurrentChannel ? CurrentChannel.IsRadio() : false;

  m_parent->SetLabel(m_iControlButton, g_localizeStrings.Get(19222) + ": " + g_localizeStrings.Get(19032));
  m_parent->SetLabel(CONTROL_LABELGROUP, g_localizeStrings.Get(19032));

  CSingleLock lock(m_critSection);

  /* start observing the EPG for changes, so our cache becomes updated in the background */
  if (!m_bObservingEpg)
  {
    CPVRManager::GetEpg()->AddObserver(this);
    m_bObservingEpg = true;
  }

  if (!m_bGotInitialEpg)
    InitializeEpgCache(bRadio);

  if (bRadio != m_bLastEpgView)
  {
    m_epgData->Clear();
    CPVRManager::GetEpg()->GetEPGAll(m_epgData, bRadio);
  }
  m_bLastEpgView = bRadio;

  if (m_epgData->Size() <= 0)
    return;

  m_parent->m_guideGrid = (CGUIEPGGridContainer*) m_parent->GetControl(CONTROL_LIST_TIMELINE);
  if (m_parent->m_guideGrid)
  {
    CDateTime gridStart = CDateTime::GetCurrentDateTime();
    CDateTime firstDate = CPVRManager::GetEpg()->GetFirstEPGDate(bRadio);
    CDateTime lastDate = CPVRManager::GetEpg()->GetLastEPGDate(bRadio);

    /* copy over the cached epg data */
    for (int iEpgPtr = 0; iEpgPtr < m_epgData->Size(); iEpgPtr++)
      m_parent->m_vecItems->Add(m_epgData->Get(iEpgPtr));

    m_parent->m_guideGrid->SetStartEnd(firstDate > gridStart ? firstDate : gridStart, lastDate);
    m_parent->m_viewControl.SetCurrentView(CONTROL_LIST_TIMELINE);
  }
//m_viewControl.SetSelectedItem(m_iSelected_GUIDE);
}

bool CGUIWindowPVRCommon::PlayFile(CFileItem *item, bool bPlayMinimized /* = false */)
{
  if (item->GetPath() == g_application.CurrentFile())
  {
    CGUIMessage msg(GUI_MSG_FULLSCREEN, 0, m_parent->GetID());
    g_windowManager.SendMessage(msg);
    return true;
  }

  g_settings.m_bStartVideoWindowed = bPlayMinimized;

  if (item->GetPath().Left(17) == "pvr://recordings/")
  {
    return PlayRecording(item, bPlayMinimized);
  }
  else
  {
    bool bSwitchSuccessful(false);

    CPVRChannel *channel = item->HasPVRChannelInfoTag() ? item->GetPVRChannelInfoTag() : NULL;

    if (g_PVRManager.CheckParentalLock(*channel))
    {
      /* try a fast switch */
      if (channel && (g_PVRManager.IsPlayingTV() || g_PVRManager.IsPlayingRadio()) &&
         (channel->IsRadio() == g_PVRManager.IsPlayingRadio()) && g_application.m_pPlayer)
      {
        if (channel->StreamURL().IsEmpty())
          bSwitchSuccessful = g_application.m_pPlayer->SwitchChannel(*channel);
      }

      if (!bSwitchSuccessful)
      {
        CApplicationMessenger::Get().PlayFile(*item, false);
        return true;
      }
    }

    if (!bSwitchSuccessful)
    {
      CGUIDialogOK::ShowAndGetInput(19033,0,19035,0);
      return false;
    }
  }

  return true;
}

bool CPVRTimers::IsRecordingOnChannel(const CPVRChannel &channel) const
{
  CSingleLock lock(m_critSection);

  for (MapTags::const_iterator it = m_tags.begin(); it != m_tags.end(); ++it)
  {
    for (VecTimerInfoTag::const_iterator timerIt = it->second->begin(); timerIt != it->second->end(); ++timerIt)
    {
      if ((*timerIt)->IsRecording() &&
          (*timerIt)->m_iClientChannelUid == channel.UniqueID() &&
          (*timerIt)->m_iClientId == channel.ClientID())
        return true;
    }
  }

  return false;
}

void CPVRChannelGroup::RemoveInvalidChannels(void)
{
  for (unsigned int ptr = 0; ptr < size(); ptr--)
  {
    CPVRChannel *channel = at(ptr).channel;
    if (channel->IsVirtual())
      continue;

    if (at(ptr).channel->ClientChannelNumber() <= 0)
    {
      CLog::Log(LOGERROR, "PVRChannelGroup - %s - removing invalid channel '%s' from client '%i': no valid client channel number",
          __FUNCTION__, channel->ChannelName().c_str(), channel->ClientID());
      erase(begin() + ptr);
      ptr--;
      m_bChanged = true;
      continue;
    }

    if (channel->UniqueID() <= 0)
    {
      CLog::Log(LOGERROR, "PVRChannelGroup - %s - removing invalid channel '%s' from client '%i': no valid unique ID",
          __FUNCTION__, channel->ChannelName().c_str(), channel->ClientID());
      erase(begin() + ptr);
      ptr--;
      m_bChanged = true;
      continue;
    }
  }
}

void CPVRChannels::MoveChannel(unsigned int iOldIndex, unsigned int iNewIndex)
{
  if (iNewIndex == iOldIndex || iNewIndex == 0)
    return;

  CPVRDatabase *database = g_PVRManager.GetTVDatabase();
  database->Open();

  CPVRChannels tempChannels(m_bRadio);

  /* move the channel */
  tempChannels.push_back(at(iOldIndex - 1));
  erase(begin() + iOldIndex - 1);
  if (iNewIndex < size())
    insert(begin() + iNewIndex - 1, tempChannels[0]);
  else
    push_back(tempChannels[0]);

  /* update the channel numbers */
  for (unsigned int ptr = 0; ptr < size(); ptr++)
  {
    CPVRChannel *channel = at(ptr);

    if (channel->ChannelNumber() != (int) ptr + 1)
    {
      channel->SetChannelNumber(ptr + 1, true);
    }
  }

  CLog::Log(LOGNOTICE, "%s - %s channel '%d' moved to '%d'",
      __FUNCTION__, (m_bRadio ? "radio" : "tv"), iOldIndex, iNewIndex);

  database->Close();

  /* update the timers with the new channel numbers */
  for (unsigned int ptr = 0; ptr < PVRTimers.size(); ptr++)
  {
    CPVRTimerInfoTag timer = PVRTimers[ptr];
    CPVRChannel *tag = GetByClient(timer.Number(), timer.ClientID());
    if (tag)
      timer.SetNumber(tag->ChannelNumber());
  }

  m_bIsSorted = false;
}

CPVRTimerInfoTag *CPVRTimerInfoTag::CreateFromEpg(const CEpgInfoTag &tag)
{
  /* create a new timer */
  CPVRTimerInfoTag *newTag = new CPVRTimerInfoTag();
  if (!newTag)
  {
    CLog::Log(LOGERROR, "%s - couldn't create new timer", __FUNCTION__);
    return NULL;
  }

  /* check if a valid channel is set */
  CPVRChannel *channel = (CPVRChannel *) tag.ChannelTag();
  if (channel == NULL)
  {
    CLog::Log(LOGERROR, "%s - no channel set", __FUNCTION__);
    return NULL;
  }

  /* check if the epg end date is in the future */
  if (tag.EndAsLocalTime() < CDateTime::GetCurrentDateTime())
  {
    CLog::Log(LOGERROR, "%s - end time is in the past", __FUNCTION__);
    return NULL;
  }

  /* set the timer data */
  CDateTime newStart = tag.StartAsUTC();
  CDateTime newEnd = tag.EndAsUTC();
  newTag->m_iClientIndex      = -1;
  newTag->m_strTitle          = tag.Title().IsEmpty() ? channel->ChannelName() : tag.Title();
  newTag->m_iChannelNumber    = channel->ChannelNumber();
  newTag->m_iClientChannelUid = channel->UniqueID();
  newTag->m_iClientId         = channel->ClientID();
  newTag->m_bIsRadio          = channel->IsRadio();
  newTag->SetStartFromUTC(newStart);
  newTag->SetEndFromUTC(newEnd);

  if (tag.Plot().IsEmpty())
  {
    newTag->m_strSummary.Format("%s %s %s %s %s",
        newTag->StartAsLocalTime().GetAsLocalizedDate(),
        g_localizeStrings.Get(19159),
        newTag->StartAsLocalTime().GetAsLocalizedTime("", false),
        g_localizeStrings.Get(19160),
        newTag->EndAsLocalTime().GetAsLocalizedTime("", false));
  }
  else
  {
    newTag->m_strSummary = tag.Plot();
  }

  /* we might have a copy of the tag here, so get the real one from the pvrmanager */
  const CEpg *epgTable = channel->GetEPG();
  newTag->m_epgInfo = epgTable ? epgTable->GetTag(tag.UniqueBroadcastID(), tag.StartAsUTC()) : NULL;

  /* unused only for reference */
  newTag->m_strFileNameAndPath = "pvr://timers/new";

  return newTag;
}