C++ CGUIMessage::GetMessage方法代码示例

bool CGUIWindow::OnMessage(CGUIMessage& message)
{
  switch ( message.GetMessage() )
  {
  case GUI_MSG_WINDOW_INIT:
    {
      CLog::Log(LOGDEBUG, "------ Window Init (%s) ------", GetProperty("xmlfile").c_str());
      if (m_dynamicResourceAlloc || !m_bAllocated) AllocResources();
      OnInitWindow();
      return true;
    }
    break;

  case GUI_MSG_WINDOW_DEINIT:
    {
      CLog::Log(LOGDEBUG, "------ Window Deinit (%s) ------", GetProperty("xmlfile").c_str());
      OnDeinitWindow(message.GetParam1());
      // now free the window
      if (m_dynamicResourceAlloc) FreeResources();
      return true;
    }
    break;

  case GUI_MSG_CLICKED:
    {
      // a specific control was clicked
      CLICK_EVENT clickEvent = m_mapClickEvents[ message.GetSenderId() ];

      // determine if there are any handlers for this event
      if (clickEvent.HasAHandler())
      {
        // fire the message to all handlers
        clickEvent.Fire(message);
      }
      break;
    }

  case GUI_MSG_SELCHANGED:
    {
      // a selection within a specific control has changed
      SELECTED_EVENT selectedEvent = m_mapSelectedEvents[ message.GetSenderId() ];

      // determine if there are any handlers for this event
      if (selectedEvent.HasAHandler())
      {
        // fire the message to all handlers
        selectedEvent.Fire(message);
      }
      break;
    }
  case GUI_MSG_FOCUSED:
    { // a control has been focused
      if (HasID(message.GetSenderId()))
      {
        m_focusedControl = message.GetControlId();
        return true;
      }
      break;
    }
  case GUI_MSG_LOSTFOCUS:
    {
      // nothing to do at the window level when we lose focus
      return true;
    }
  case GUI_MSG_MOVE:
    {
      if (HasID(message.GetSenderId()))
        return OnMove(message.GetControlId(), message.GetParam1());
      break;
    }
  case GUI_MSG_SETFOCUS:
    {
//      CLog::Log(LOGDEBUG,"set focus to control:%i window:%i (%i)\n", message.GetControlId(),message.GetSenderId(), GetID());
      if ( message.GetControlId() )
      {
        // first unfocus the current control
        CGUIControl *control = GetFocusedControl();
        if (control)
        {
          CGUIMessage msgLostFocus(GUI_MSG_LOSTFOCUS, GetID(), control->GetID(), message.GetControlId());
          control->OnMessage(msgLostFocus);
        }

        // get the control to focus
        CGUIControl* pFocusedControl = GetFirstFocusableControl(message.GetControlId());
        if (!pFocusedControl) pFocusedControl = (CGUIControl *)GetControl(message.GetControlId());

        // and focus it
        if (pFocusedControl)
          return pFocusedControl->OnMessage(message);
      }
      return true;
    }
    break;
  case GUI_MSG_EXCLUSIVE_MOUSE:
    {
      m_exclusiveMouseControl = message.GetSenderId();
      return true;
    }
    break;
//.........这里部分代码省略.........

bool CGUIDialogMusicInfo::OnMessage(CGUIMessage& message)
{
  switch ( message.GetMessage() )
  {
  case GUI_MSG_WINDOW_DEINIT:
    {
      m_artTypeList.Clear();
      // For albums update user rating if it has changed
      if(!m_bArtistInfo && m_startUserrating != m_item->GetMusicInfoTag()->GetUserrating())
      {
        m_hasUpdatedUserrating = true;

        // Asynchronously update song userrating in library
        CSetUserratingJob *job = new CSetUserratingJob(m_item->GetMusicInfoTag()->GetAlbumId(), 
                                                       m_item->GetMusicInfoTag()->GetUserrating());
        CJobManager::GetInstance().AddJob(job, NULL);
      }
      if (m_hasRefreshed || m_hasUpdatedUserrating)
      {
        // Send a message to all windows to tell them to update the item.
        // This communicates changes to the music lib window.
        // The music lib window item is updated to but changes to the rating when it is the sort 
        // do not show on screen until refresh() that fetches the list from scratch, sorts etc.
        CGUIMessage msg(GUI_MSG_NOTIFY_ALL, 0, 0, GUI_MSG_UPDATE_ITEM, 0, m_item);
        CServiceBroker::GetGUI()->GetWindowManager().SendMessage(msg);
      }
    
      CGUIMessage msg(GUI_MSG_LABEL_RESET, GetID(), CONTROL_LIST);
      OnMessage(msg);
      m_albumSongs->Clear();
    }
    break;

  case GUI_MSG_WINDOW_INIT:
    {
      CGUIDialog::OnMessage(message);
      Update();
      m_cancelled = false;
      return true;
    }
    break;


  case GUI_MSG_CLICKED:
    {
      int iControl = message.GetSenderId();
      if (iControl == CONTROL_USERRATING)
      {
        OnSetUserrating();
      }
      else if (iControl == CONTROL_BTN_REFRESH)
      {
        RefreshInfo();
        return true;
      }
      else if (iControl == CONTROL_BTN_GET_THUMB)
      {
        OnGetArt();
        return true;
      }
      else if (iControl == CONTROL_ARTISTINFO)
      {
        if (!m_bArtistInfo)
          OnArtistInfo(m_album.artistCredits[0].GetArtistId());
        return true;
      }
      else if (iControl == CONTROL_LIST)
      {
        int iAction = message.GetParam1();
        if (m_bArtistInfo && (ACTION_SELECT_ITEM == iAction || ACTION_MOUSE_LEFT_CLICK == iAction))
        {
          CGUIMessage msg(GUI_MSG_ITEM_SELECTED, GetID(), iControl);
          CServiceBroker::GetGUI()->GetWindowManager().SendMessage(msg);
          int iItem = msg.GetParam1();
          if (iItem < 0 || iItem >= static_cast<int>(m_albumSongs->Size()))
            break;
          OnAlbumInfo(m_albumSongs->Get(iItem)->GetMusicInfoTag()->GetDatabaseId());

          return true;
        }
      }
    }
    break;
  }

  return CGUIDialog::OnMessage(message);
}