// 添加一条USB消息
private void AddFilterTrace(FKFilterTrace filterTrace)
{
// 检查是否符合筛选器的要求
if (DoesTracePassFilters(filterTrace, FilterInclude.Include) &&
DoesTracePassFilters(filterTrace, FilterInclude.Exclude))
{
if (m_nMaxTraces > 0)
{
while (DataTrace_ListView.Items.Count >= m_nMaxTraces)
{
DataTrace_ListView.Items.RemoveAt(0);
}
}
// 创建一行
ListViewItem item = new ListViewItem(filterTrace.DeviceId.ToString());
for (int i = 1; i < DataTrace_ListView.Columns.Count; i++)
{
switch (i)
{
case 1:
item.SubItems.Add(filterTrace.TypeToStr());
break;
case 2:
item.SubItems.Add(filterTrace.GetTimestampDelta(m_PrevTrace).ToString());
break;
case 3:
if (filterTrace.Buffer != null)
{
item.SubItems.Add(filterTrace.Buffer.Length.ToString());
}
else
{
item.SubItems.Add(Convert.ToString(0));
}
break;
case 4:
item.SubItems.Add(filterTrace.BufToHex());
break;
case 5:
item.SubItems.Add(filterTrace.BufToChars());
break;
}
}
DataTrace_ListView.TopItem = DataTrace_ListView.Items.Add(item);
m_PrevTrace = filterTrace;
}
}
// 检查一条消息是否符合筛选器
private bool DoesTracePassFilters(FKFilterTrace filterTrace, FilterInclude include)
{
List <FilterMatch> filters;
if (include == FilterInclude.Include)
{
filters = fkFilterControl.IncludeFilters;
}
else
{
filters = fkFilterControl.ExcludeFilters;
}
if (filters.Count == 0)
{
return(true);
}
bool check = true;
foreach (FilterMatch filter in filters)
{
switch (filter.FilterType)
{
case FilterType.Length:
switch (filter.LengthMatch)
{
case LengthMatch.GreaterThen:
check = filterTrace.Buffer.Length > filter.Length;
break;
case LengthMatch.LessThen:
check = filterTrace.Buffer.Length < filter.Length;
break;
case LengthMatch.EqualTo:
check = filterTrace.Buffer.Length == filter.Length;
break;
}
break;
case FilterType.Hex:
check = filterTrace.BufToHex().Contains(filter.Filter);
break;
case FilterType.Ascii:
check = filterTrace.BufToChars().Contains(filter.Filter);
break;
}
if (include == FilterInclude.Include)
{
if (check)
{
return(true);
}
else
{
continue;
}
}
else
{
if (check)
{
return(false);
}
else
{
continue;
}
}
}
if (include == FilterInclude.Include)
{
return(false);
}
else
{
return(true);
}
}