C++ IEvent::ChatLogUpdateTextBlock方法代码示例

//.........这里部分代码省略.........
			QDateTime dtl = QDateTime::fromMSecsSinceEpoch(pEvent->m_tsEventID).toLocalTime();
			QDate date = dtl.date();	// Strip the time of the day
			m_tsMidnightNext = QDateTime(date).toMSecsSinceEpoch() + d_ts_cDays;	// I am sure there is a more elegant way to strip the time from a date, however at the moment I don't have time to investigate a better solution (and this code works)

			QTextBlockFormat oFormatBlock;
			oFormatBlock.setAlignment(Qt::AlignHCenter);
			oFormatBlock.setBackground(c_brushSilver);
			oCursor.setBlockFormat(oFormatBlock);
			QTextCharFormat oFormatChar; // = oCursor.charFormat();
			oFormatChar.setFontWeight(QFont::Bold);
			//oFormatChar.setFontItalic(true);
			//oCursor.setCharFormat(oFormatChar);
			oCursor.insertText(date.toString("dddd MMMM d, yyyy"), oFormatChar);
			oCursor.AppendBlockBlank();
			}
		oTextBlockEvent = oCursor.block();	// Get the current block under the cursor
		Endorse(oTextBlockEvent.userData() == NULL);

		if (pEvent->m_uFlagsEvent & IEvent::FE_kfReplacing)
			{
			MessageLog_AppendTextFormatSev(eSeverityComment, "Attempting to replace Event ID $t\n", pEvent->m_tsEventID);
			QTextBlock oTextBlockUpdate;
			QTextBlock oTextBlockTemp = document()->lastBlock();
			IEvent * pEventOld = pEvent;
			const EEventClass eEventClassUpdater = pEvent->Event_FIsEventTypeSent() ? CEventUpdaterSent::c_eEventClass : CEventUpdaterReceived::c_eEventClass;	// Which updater to search for
			// The event is replacing an older event.  This code is a bit complex because the Chat Log may not display all events and therefore we need to find the most recent block displaying the most recent event.
			IEvent ** ppEventStop;
			IEvent ** ppEventFirst = pEvent->m_pVaultParent_NZ->m_arraypaEvents.PrgpGetEventsStop(OUT &ppEventStop);
			IEvent ** ppEventCompare = ppEventStop;	// Search the array from the end, as the event to search is likely to be a recent one
			while (ppEventFirst < ppEventCompare)
				{
				// Find the updater which should be right before the replacing event
				IEvent * pEventTemp = *--ppEventCompare;
				TryAgain:
				if (pEventTemp == pEventOld && ppEventFirst < ppEventCompare)
					{
					CEventUpdaterSent * pEventUpdater = (CEventUpdaterSent *)*--ppEventCompare;	// Get the updater which is just before the event
					if (pEventUpdater->EGetEventClass() != eEventClassUpdater)
						{
						MessageLog_AppendTextFormatSev(eSeverityErrorWarning, "\t Missing Updater for Event ID $t ({tL}); instead found class '$U' with Event ID $t.\n", pEventTemp->m_tsEventID, pEventTemp->m_tsEventID, pEventUpdater->EGetEventClass(), pEventUpdater->m_tsEventID);
						pEvent->m_uFlagsEvent &= ~IEvent::FE_kfReplacing;	// Remove the bit to avoid displaying the error again and again
						pEvent->m_pVaultParent_NZ->SetModified();			// Save the change
						continue;
						}
					const TIMESTAMP tsEventIdOld = pEventUpdater->m_tsEventIdOld;
					MessageLog_AppendTextFormatSev(eSeverityNoise, "\t [$i] Found updater: $t  ->  $t\n", ppEventCompare - ppEventFirst, pEventUpdater->m_tsEventIdNew, tsEventIdOld);
					// Now, search for the block containing the replacement event
					while (oTextBlockTemp.isValid())
						{
						OTextBlockUserDataEvent * pUserData = (OTextBlockUserDataEvent *)oTextBlockTemp.userData();
						if (pUserData != NULL)
							{
							TIMESTAMP_DELTA dtsEvent = (pUserData->m_pEvent->m_tsEventID - tsEventIdOld);
							MessageLog_AppendTextFormatCo(d_coPurple, "Comparing block Event ID $t with $t: dtsEvent = $T\n", pUserData->m_pEvent->m_tsEventID, tsEventIdOld, dtsEvent);
							if (dtsEvent <= 0)
								{
								if (dtsEvent == 0)
									{
									MessageLog_AppendTextFormatSev(eSeverityNoise, "\t Found matching textblock for replacement: Event ID $t  ->  $t\n", pEventOld->m_tsEventID, tsEventIdOld);
									oTextBlockUpdate = oTextBlockTemp;
									}
								break;
								}
							}
						oTextBlockTemp = oTextBlockTemp.previous();
						} // while
					// Keep searching in case there are chained updated events
					while (ppEventFirst < ppEventCompare)
						{
						pEventTemp = *--ppEventCompare;
						if (pEventTemp->m_tsEventID == tsEventIdOld)
							{
							MessageLog_AppendTextFormatSev(eSeverityNoise, "\t [$i] Found chained replacement: Event ID $t  -> $t\n", ppEventCompare - ppEventFirst, pEvent->m_tsEventID, tsEventIdOld);
							pEventTemp->m_uFlagsEvent |= IEvent::FE_kfReplaced;
							pEventOld = pEventTemp;
							goto TryAgain;
							}
						} // while
					} // if
				} // while
			if (oTextBlockUpdate.isValid())
				{
				MessageLog_AppendTextFormatSev(eSeverityNoise, "\t Event ID $t is updating its old Event ID $t\n", pEvent->m_tsEventID, pEventOld->m_tsEventID);
				OCursorSelectBlock oCursorEventOld(oTextBlockUpdate);
				pEvent->ChatLogUpdateTextBlock(INOUT &oCursorEventOld);
				continue;
				}
			MessageLog_AppendTextFormatSev(eSeverityErrorWarning, "Event ID $t is replacing another event which cannot be found\n", pEvent->m_tsEventID);
			} // if (replacing)
		oTextBlockEvent.setUserData(PA_CHILD new OTextBlockUserDataEvent(pEvent));		// Assign an event for each text block
		pEvent->ChatLogUpdateTextBlock(INOUT &oCursor);
		if ((pEvent->m_uFlagsEvent & IEvent::FE_kfEventHidden) == 0)
			oCursor.AppendBlockBlank();	// If the event is visible, then add a new text block (otherwise it will reuse the same old block)
		else
			oTextBlockEvent.setUserData(NULL);	// Since we are reusing the same block, delete its userdata so we may assing another OTextBlockUserDataEvent
		} // while
	m_oTextBlockComposing = oCursor.block();
	ChatLog_ChatStateTextAppend(INOUT oCursor);
	Widget_ScrollToEnd(INOUT this);
	} // ChatLog_EventsDisplay()