void FindMatchingPairs()
{
data = new List <BeginEndEvent>();
Dictionary <PerformanceEventArrivedEventArgsKey, PerformanceEventArrivedEventArgs> open = new Dictionary <PerformanceEventArrivedEventArgsKey, PerformanceEventArrivedEventArgs>();
start = long.MaxValue;
end = 0;
foreach (PerformanceEventArrivedEventArgs e in rawdata)
{
PerformanceEventArrivedEventArgsKey key = new PerformanceEventArrivedEventArgsKey(e);
if (e.EventId == BeginEvent)
{
open[key] = e;
}
else if (e.EventId == EndEvent)
{
PerformanceEventArrivedEventArgs s;
if (open.TryGetValue(key, out s))
{
if (s.Timestamp < start)
{
start = s.Timestamp;
}
if (e.Timestamp > end)
{
end = e.Timestamp;
}
data.Add(new BeginEndEvent()
{
Begin = s, End = e
});
}
}
}
}
internal void WriteXml(string filename, List <PerformanceEventArrivedEventArgs> events)
{
XmlWriterSettings s = new XmlWriterSettings();
s.Indent = true;
using (XmlWriter w = XmlWriter.Create(filename, s))
{
long start = 0;
w.WriteStartElement("PerformanceData");
if (events.Count > 0)
{
start = events[0].Timestamp;
long end = events[events.Count - 1].Timestamp;
w.WriteAttributeString("Duration", (end - start).ToString());
}
Dictionary <PerformanceEventArrivedEventArgsKey, PerformanceEventArrivedEventArgs> open = new Dictionary <PerformanceEventArrivedEventArgsKey, PerformanceEventArrivedEventArgs>();
foreach (var e in events)
{
PerformanceEventArrivedEventArgsKey key = new PerformanceEventArrivedEventArgsKey(e);
if (e.EventId == BeginEvent)
{
open[key] = e;
}
else if (e.EventId == EndEvent)
{
w.WriteStartElement("Event");
WriteEventCategory(w, e);
w.WriteAttributeString("Timestamp", (e.Timestamp - start).ToString())
;
PerformanceEventArrivedEventArgs begin = null;
if (open.TryGetValue(key, out begin))
{
long eventDuration = e.Timestamp - begin.Timestamp;
w.WriteAttributeString("Duration", eventDuration.ToString());
w.WriteEndElement();
}
}
else
{
w.WriteStartElement("Event");
WriteEventCategory(w, e);
w.WriteAttributeString("Timestamp", (e.Timestamp - start).ToString());
w.WriteEndElement();
}
}
w.WriteEndElement();
}
}
void PrepareLegend()
{
Legend.Clear();
legendColors = new Dictionary <PerformanceEventArrivedEventArgsKey, Tuple <int, Color> >();
foreach (BeginEndEvent record in data)
{
PerformanceEventArrivedEventArgs begin = record.Begin;
PerformanceEventArrivedEventArgs e = record.End;
Tuple <int, Color> style;
PerformanceEventArrivedEventArgsKey key = new PerformanceEventArrivedEventArgsKey(begin);
if (!legendColors.TryGetValue(key, out style))
{
int i = legendColors.Count;
Color color = GetColor(i);
legendColors[key] = style = new Tuple <int, Color>(i, color);
Legend.AddItem(color, key.Label);
}
}
}
protected override void OnRender(DrawingContext drawingContext)
{
drawingContext.DrawRectangle(Brushes.White, null, new Rect(new Point(0, 0), this.RenderSize));
gesture.HidePopup();
if (data == null || data.Count == 0)
{
return;
}
long span = end - start; // ticks
double ticksPerLabel = (zoom * frequency);
double scale = pixelsPerLabel / ticksPerLabel;
if (ZoomToFit)
{
//double labels = (int)(this.ActualWidth / pixelsPerLabel);
//while (ticksPerLabel * labels > span)
//{
// zoom = ZoomIn(zoom);
// actualZoom = 1 / (zoom * frequency);
// ticksPerLabel = (pixelsPerLabel * actualZoom);
//}
//while (ticksPerLabel * labels < span)
//{
// zoom = ZoomOut(zoom);
// actualZoom = 1 / (zoom * frequency);
// ticksPerLabel = (pixelsPerLabel * actualZoom);
//}
}
extent = Rect.Empty;
double maxy = 0;
double maxx = 0;
foreach (BeginEndEvent record in data)
{
PerformanceEventArrivedEventArgs begin = record.Begin;
PerformanceEventArrivedEventArgs e = record.End;
Brush color = null;
PerformanceEventArrivedEventArgsKey key = new PerformanceEventArrivedEventArgsKey(begin);
Tuple <int, Color> style = legendColors[key];
color = new SolidColorBrush(style.Item2);
double y = 20 + style.Item1 * 22;
double x = HorizontalMargin + (double)(begin.Timestamp - start) * (double)scale;
double w = (double)(e.Timestamp - begin.Timestamp) * (double)scale;
Rect bounds = new Rect(x, y, w, 20);
maxy = Math.Max(maxy, y + 20);
maxx = Math.Max(maxx, x + w);
drawingContext.DrawRectangle(color, new Pen(color, 1), bounds);
record.Bounds = bounds;
extent = Rect.Union(extent, bounds);
}
// Draw scale
Typeface typeface = new Typeface("Segoe UI");
maxy += 20;
Pen pen = new Pen(Brushes.Black, 1);
drawingContext.DrawLine(pen, new Point(HorizontalMargin, maxy - 5), new Point(HorizontalMargin, maxy + 5));
drawingContext.DrawLine(pen, new Point(maxx, maxy - 5), new Point(maxx, maxy + 5));
drawingContext.DrawLine(pen, new Point(HorizontalMargin, maxy), new Point(maxx, maxy));
double unit = 0;
double unitStep = zoom; // zoom is inverse .
string units = "s"; // seconds;
if (unitStep.ToString("N").StartsWith("0.0"))
{
unitStep *= 1000;
units = "ms";
}
if (unitStep.ToString("N").StartsWith("0.0"))
{
unitStep *= 1000;
units = "μs";
}
int digits = GetDigits(zoom);
for (double i = 0; i < span; i += ticksPerLabel)
{
double x = HorizontalMargin + (i * scale);
drawingContext.DrawLine(pen, new Point(x, maxy - 5), new Point(x, maxy + 5));
string label = Math.Round(unit, digits, MidpointRounding.ToEven).ToString();
if (i == 0)
{
label = units;
}
FormattedText ft = new FormattedText(label,
CultureInfo.CurrentCulture, System.Windows.FlowDirection.LeftToRight,
typeface, 10, Brushes.Black);
drawingContext.DrawText(ft, new Point(x - (ft.Width / 2), maxy + 10));
unit += unitStep;
}
}
