void AddDatum(TrendValue v, DateTime start, DateTime end, IList <ChartValue> timeData)
{
// for this math to work, we have to ignore "time" in the dates.
start = start.Date;
end = end.Date;
// duplicate the items across a range to fill the gaps so the graph spans the whole time span.
while (start < end)
{
string label = this.generator.GetLabel(v);
timeData.Add(new ChartValue(label, (double)v.Value, v.UserData));
start = start.AddDays(1);
}
return;
}
private TrendGraphSeries AddSeries(DateTime start, DateTime end, Color color)
{
ChartCategory cat = new ChartCategory();
cat.WpfColor = color;
nfi.NumberDecimalDigits = 2;
nfi.CurrencyNegativePattern = 0;
TimeSpan span = (end - start);
int days = span.Days;
if (days > 360)
{
cat.Name = start.Year.ToString();
}
else
{
cat.Name = start.ToShortDateString();
}
TrendGraphSeries s = new TrendGraphSeries(cat.Name, cat.Name);
chartData.AddSeries(s);
s.Flipped = generator.IsFlipped;
IList <ChartValue> timeData = s.Values;
s.BeginUpdate();
DateTime last = start;
TrendValue lastv = null;
foreach (TrendValue v in this.data)
{
// calculate balances using data from the start of the account \ list so the end balance is correct
if (v.Date <= end && v.Date >= start)
{
// If the items are on the same day, don't add to the graph yet.
// Accumulate them and the accumulated value for the day will be displayed
if (last != v.Date)
{
AddDatum(v, last, v.Date, timeData);
}
last = v.Date;
lastv = v;
}
}
// Put the last item on the graph
if (lastv != null)
{
AddDatum(lastv, last, end.AddDays(1), timeData);
}
s.EndUpdate();
//s.Accumulate = false;
//s.Color = color;
s.Category = cat;
s.Start = start;
s.End = end;
return(s);
}
private TrendGraphSeries AddSeries(DateTime start, DateTime end, Color color)
{
ChartCategory cat = new ChartCategory();
cat.WpfColor = color;
nfi.NumberDecimalDigits = 2;
nfi.CurrencyNegativePattern = 0;
TimeSpan span = (end - start);
int days = span.Days;
if (days > 360)
{
cat.Name = start.Year.ToString();
}
else
{
cat.Name = start.ToShortDateString();
}
TrendGraphSeries s = new TrendGraphSeries(cat.Name);
chartData.AddSeries(s);
s.Flipped = generator.IsFlipped;
IList <ChartDataValue> timeData = s.Values;
TrendValue emptyTrendValue = new TrendValue();
emptyTrendValue.Value = 0;
emptyTrendValue.UserData = null;
DateTime last = start;
TrendValue lastv = emptyTrendValue;
foreach (TrendValue v in this.data)
{
// NOTE: This list is assumed to be sorted
if (v.Date > end)
{
break;
}
if (v.Date >= start)
{
// If the items are on the same day, don't add to the graph yet.
// Accumulate them and the accumulated value for the day will be displayed
if (last != v.Date)
{
AddDatum(lastv, last, v.Date, timeData);
}
last = v.Date;
}
lastv = v;
}
// Put the last item on the graph
AddDatum(lastv, last, end.AddDays(1), timeData);
//s.Accumulate = false;
//s.Color = color;
s.Category = cat;
s.Start = start;
s.End = end;
return(s);
}