/// <summary>
/// The background worker task. Download the event history associated with the current event log and update the EventStatusList property of the
/// FormShowEventHistory class.
/// </summary>
/// <param name="sender">Reference to the object that raised the event.</param>
/// <param name="e">Parameter passed from the object that raised the event.</param>
private void m_BackgroundWorker_DoWork(object sender, DoWorkEventArgs e)
{
// Skip, if the Dispose() method has been called.
if (IsDisposed)
{
return;
}
// ---------------------------------------------------------------
// Get the history information associated with the current log.
// ---------------------------------------------------------------
int eventCount = (short)m_EventRecordList.Count;
int maxEventCount = m_Log.MaxEventsPerTask * m_Log.MaxTasks;
// Initialize the validFlags array to define which of the events are used in the current log.
short[] validFlags = new short[maxEventCount];
int eventIndex;
for (int index = 0; index < m_EventRecordList.Count; index++)
{
eventIndex = m_EventRecordList[index].TaskIdentifier * m_Log.MaxEventsPerTask + m_EventRecordList[index].EventIdentifier;
validFlags[eventIndex] = CommonConstants.True;
}
short[] cumulativeHistoryCounts = new short[eventCount];
short[] recentHistoryCounts = new short[eventCount];
CommunicationInterface.GetFltHistInfo(validFlags, ref cumulativeHistoryCounts, ref recentHistoryCounts, m_Log.MaxTasks, m_Log.MaxEventsPerTask);
// ---------------------------------
// Initialise the event status list.
// ---------------------------------
List <EventStatus_t> eventStatusList = new List <EventStatus_t>(eventCount);
EventStatus_t eventStatus;
for (int eventStatusIndex = 0; eventStatusIndex < eventCount; eventStatusIndex++)
{
eventStatus = new EventStatus_t();
eventStatus.Index = eventStatusIndex;
eventStatus.Identifier = m_EventRecordList[eventStatusIndex].Identifier;
eventStatus.CumulativeHistoryCount = cumulativeHistoryCounts[eventStatusIndex];
eventStatus.RecentHistoryCount = recentHistoryCounts[eventStatusIndex];
eventStatusList.Add(eventStatus);
}
// Get the reference to the calling form.
FormShowEventHistory calledFromAsFormShowEventHistory = CalledFrom as FormShowEventHistory;
Debug.Assert(calledFromAsFormShowEventHistory != null, "FormGetFltHistInfo.m_BackgroundWorker_DoWork() - [calledFromAsFormShowEventHistory != null]");
// Update the EventStatusList property of the form.
calledFromAsFormShowEventHistory.EventStatusList = eventStatusList;
}
/// <summary>
/// Get the element of the <c>EventStatusList</c> property corresponding to the selected row of the <c>DataGridView</c> control.
/// </summary>
/// <param name="eventStatus">The event status element corresponding to the selected row of the <c>DataGridView</c> control.</param>
/// <param name="dataGridViewRow">The selected row of the <c>DataGridView</c> control.</param>
/// <returns>A flag to indicate whether an event status element matching the selected row of the DataGridView control was found. True, if a matching element
/// was found; otherwise, false.</returns>
private bool GetEventStatusElement(out EventStatus_t eventStatus, out DataGridViewRow dataGridViewRow)
{
eventStatus = new EventStatus_t();
dataGridViewRow = new DataGridViewRow();
// Flag to indicate whether an event flag matching the selected row of the DataGridView control was found.
bool matchFound = false;
// Skip, if the Dispose() method has been called.
if (IsDisposed)
{
return(matchFound);
}
// Ensure that a row has been selected.
if (m_DataGridViewEventStatus.SelectedRows.Count <= 0)
{
return(matchFound);
}
// Get the selected row of the DataGridView control.
dataGridViewRow = m_DataGridViewEventStatus.SelectedRows[0];
if (dataGridViewRow != null)
{
// Get the event index of the event flag associated with the selected record.
short eventIndex = short.Parse((string)dataGridViewRow.Cells[ColumnIndexEventIndex].Value);
// Ensure that the event index is a positive value.
if (eventIndex < 0)
{
return(matchFound);
}
// Find the event flag associated with the selected event index.
eventStatus = m_EventStatusList.Find(delegate(EventStatus_t currentEventFlag)
{
return(currentEventFlag.Identifier == eventIndex);
});
if (eventStatus.Identifier == eventIndex)
{
matchFound = true;
}
}
return(matchFound);
}
/// <summary>
/// Convert the specified event status structure to a <c>DataGridViewRow</c> so that it may be added to the <c>DataGridView</c> control used to display the
/// event status information.
/// </summary>
/// <param name="eventStatus">The event status structure that is to be converted.</param>
/// <returns>The specified event status structure converted to a <c>DataGridViewRow</c>.</returns>
private DataGridViewRow Convert(EventStatus_t eventStatus)
{
DataGridViewRow dataGridViewRow = new DataGridViewRow();
// Skip, if the Dispose() method has been called.
if (IsDisposed)
{
return(dataGridViewRow);
}
string description;
// Get the description of the event type associated with the event flag.
try
{
EventRecord eventRecord = Lookup.EventTable.RecordList[eventStatus.Identifier];
if (eventRecord == null)
{
description = string.Empty;
}
description = eventRecord.Description;
}
catch (Exception)
{
description = string.Empty;
}
string enableEventText;
if (eventStatus.Enabled == true)
{
enableEventText = m_TextTrue;
}
else
{
enableEventText = m_TextFalse;
}
string streamTriggeredText;
if (eventStatus.StreamTriggered == true)
{
streamTriggeredText = m_TextTrue;
}
else
{
streamTriggeredText = m_TextFalse;
}
int totalCount;
totalCount = eventStatus.CumulativeHistoryCount + eventStatus.RecentHistoryCount;
dataGridViewRow = new DataGridViewRow();
dataGridViewRow.CreateCells(m_DataGridViewEventStatus, new object[] {
(object)eventStatus.Identifier.ToString(FormatStringInteger),
(object)description,
(object)enableEventText,
(object)streamTriggeredText,
(object)eventStatus.CumulativeHistoryCount.ToString(),
(object)totalCount.ToString()
});
return(dataGridViewRow);
}
/// <summary>
/// Initializes a new instance of the class.
/// </summary>
/// <param name="communicationInterface">The communication interface that is to be used to communicate with the VCU.</param>
/// <param name="log">The current event log.</param>
public FormConfigureEventFlags(ICommunicationParent communicationInterface, Log log)
{
InitializeComponent();
// Initialize the communication interface.
if (communicationInterface is CommunicationParent)
{
CommunicationInterface = new CommunicationEvent(communicationInterface);
}
else
{
CommunicationInterface = new CommunicationEventOffline(communicationInterface);
}
Debug.Assert(CommunicationInterface != null);
#region - [Size] -
// Get the combined width of all visible DataGridView columns.
int dataGridViewWidth = 0;
DataGridViewColumn dataGridViewColumn;
for (int columnIndex = 0; columnIndex < m_DataGridViewEventStatus.Columns.Count; columnIndex++)
{
dataGridViewColumn = m_DataGridViewEventStatus.Columns[columnIndex];
if (dataGridViewColumn.Visible == true)
{
dataGridViewWidth += dataGridViewColumn.Width;
}
}
m_PanelDataGridViewEventStatus.Width = dataGridViewWidth + MarginRightDataGridViewControl;
Width = m_PanelDataGridViewEventStatus.Width + MarginRightPanelControl;
#endregion - [Size] -
// ------------------------------------------------------------------
// Get the list of events associated with the current event log.
// ------------------------------------------------------------------
List <EventRecord> foundEventRecordList;
foundEventRecordList = Lookup.EventTable.RecordList.FindAll(delegate(EventRecord eventRecord)
{
// Include a try/catch block in case an event record has not been defined.
try
{
// The LOGID field of the EVENTS table actually uses the log index value which is equal to the log identifier - 1.
return(eventRecord.LogIdentifier == log.Identifier - 1);
}
catch (Exception)
{
return(false);
}
});
foundEventRecordList.Sort(CompareByTaskIDByEventIDAscending);
// ---------------------------------------------------------------
// Get the event flag information associated with the current log.
// ---------------------------------------------------------------
int eventCount = (short)foundEventRecordList.Count;
int maxEventCount = log.MaxEventsPerTask * log.MaxTasks;
// Initialize the validFlags array to define which of the events are used in the current log.
short[] validFlags = new short[maxEventCount];
int eventIndex;
for (int index = 0; index < foundEventRecordList.Count; index++)
{
eventIndex = foundEventRecordList[index].TaskIdentifier * log.MaxEventsPerTask + foundEventRecordList[index].EventIdentifier;
validFlags[eventIndex] = CommonConstants.True;
}
short[] enabledFlags = new short[eventCount];
short[] streamTriggeredFlags = new short[eventCount];
try
{
CommunicationInterface.GetFltFlagInfo(validFlags, ref enabledFlags, ref streamTriggeredFlags, (short)maxEventCount);
}
catch (Exception)
{
throw new CommunicationException(Resources.EMGetFltFlagInfoFailed);
}
// ---------------------------------
// Initialise the event status list.
// ---------------------------------
m_EventStatusList = new List <EventStatus_t>(eventCount);
EventStatus_t eventStatus;
for (int eventStatusIndex = 0; eventStatusIndex < eventCount; eventStatusIndex++)
{
eventStatus = new EventStatus_t();
eventStatus.Index = eventStatusIndex;
eventStatus.Identifier = foundEventRecordList[eventStatusIndex].Identifier;
if (enabledFlags[eventStatusIndex] == CommonConstants.True)
{
eventStatus.Enabled = true;
}
if (streamTriggeredFlags[eventStatusIndex] == CommonConstants.True)
{
eventStatus.StreamTriggered = true;
}
m_EventStatusList.Add(eventStatus);
}
AddList(m_EventStatusList);
}