public void DrawRegions(Graphics gfx)
{
if (_regions == null)
{
return;
}
using (StringFormat textFormat = new StringFormat())
{
textFormat.Alignment = StringAlignment.Center;
textFormat.LineAlignment = StringAlignment.Center;
using (Font font = new Font(_fontFamily, _labelFontSize))
{
using (Brush textBrush = new SolidBrush(_fontColor))
{
using (Pen solidPen = new Pen(_fontColor))
{
using (Pen lightPen = new Pen(Color.FromArgb(128, _fontColor)))
{
float labelWidth = _barWidth + _spaceBtwBars;
for (int i = 0; i < _regions.Length; ++i)
{
BarRegion reg = _regions[i];
RectangleF rc = new RectangleF(_xOrigin + (reg.m_RangeFrom * labelWidth), _yOrigin, (reg.m_RangeTo - reg.m_RangeFrom + 1) * labelWidth, _graphHeight);
if (rc.X + rc.Width > _xOrigin + _graphWidth)
{
rc.Width = _xOrigin + _graphWidth - rc.X;
}
using (SolidBrush brsh = new SolidBrush(Color.FromArgb(48, GetColor(i))))
gfx.FillRectangle(brsh, rc);
rc.Offset((rc.Width - 200.0f) * 0.5f, -16.0f);
rc.Width = 200.0f;
rc.Height = 20.0f;
gfx.DrawString(reg.m_Name, font, textBrush, rc, textFormat);
}
}
}
}
}
}
}
public static BarGraph OverTime(SnapshotHistory history, string reportName, string valueName, int step, int max, int ival)
{
BarGraph barGraph = new BarGraph(valueName + " over time", "graphs_" + valueName.ToLower() + "_ot", 10, "Time", valueName, BarGraphRenderMode.Lines);
TimeSpan ts = TimeSpan.FromHours((max * step) - 0.5);
DateTime mostRecent = history.Snapshots[history.Snapshots.Count - 1].TimeStamp;
DateTime minTime = mostRecent - ts;
barGraph.FontSize = 6;
barGraph.Interval = ival;
ArrayList regions = new ArrayList();
for (int i = 0; i < history.Snapshots.Count; ++i)
{
Snapshot ss = history.Snapshots[i];
DateTime timeStamp = ss.TimeStamp;
if (timeStamp < minTime)
{
continue;
}
if ((i % step) != 0)
{
continue;
}
int val = LookupReportValue(ss, reportName, valueName);
if (val == -1)
{
continue;
}
int realHours = timeStamp.TimeOfDay.Hours;
int hours;
if (realHours == 0)
{
hours = 12;
}
else if (realHours > 12)
{
hours = realHours - 12;
}
else
{
hours = realHours;
}
string dayName = timeStamp.DayOfWeek.ToString();
if (regions.Count == 0)
{
regions.Add(new BarRegion(barGraph.Items.Count, barGraph.Items.Count, dayName));
}
else
{
BarRegion region = (BarRegion)regions[regions.Count - 1];
if (region.m_Name == dayName)
{
region.m_RangeTo = barGraph.Items.Count;
}
else
{
regions.Add(new BarRegion(barGraph.Items.Count, barGraph.Items.Count, dayName));
}
}
barGraph.Items.Add(hours + (realHours >= 12 ? " PM" : " AM"), val);
}
barGraph.Regions = (BarRegion[])regions.ToArray(typeof(BarRegion));
return(barGraph);
}
public static BarGraph Growth(SnapshotHistory history, string reportName, string valueName)
{
BarGraph barGraph = new BarGraph("Growth of " + valueName + " over time", "graphs_" + valueName.ToLower() + "_growth", 10, "Time", valueName, BarGraphRenderMode.Lines);
barGraph.FontSize = 6;
barGraph.Interval = 7;
DateTime startPeriod = history.Snapshots[0].TimeStamp.Date + TimeSpan.FromDays(1.0);
DateTime endPeriod = history.Snapshots[history.Snapshots.Count - 1].TimeStamp.Date;
ArrayList regions = new ArrayList();
DateTime curDate = DateTime.MinValue;
int curPeak = -1;
int curLow = 1000;
int curTotl = 0;
int curCont = 0;
int curValu = 0;
for (int i = 0; i < history.Snapshots.Count; ++i)
{
Snapshot ss = history.Snapshots[i];
DateTime timeStamp = ss.TimeStamp;
if (timeStamp < startPeriod || timeStamp >= endPeriod)
{
continue;
}
int val = LookupReportValue(ss, reportName, valueName);
if (val == -1)
{
continue;
}
DateTime thisDate = timeStamp.Date;
if (curDate == DateTime.MinValue)
{
curDate = thisDate;
}
curCont++;
curTotl += val;
curValu = curTotl / curCont;
if (curDate != thisDate && curValu >= 0)
{
string mnthName = thisDate.ToString("MMMM");
if (regions.Count == 0)
{
regions.Add(new BarRegion(barGraph.Items.Count, barGraph.Items.Count, mnthName));
}
else
{
BarRegion region = (BarRegion)regions[regions.Count - 1];
if (region.m_Name == mnthName)
{
region.m_RangeTo = barGraph.Items.Count;
}
else
{
regions.Add(new BarRegion(barGraph.Items.Count, barGraph.Items.Count, mnthName));
}
}
barGraph.Items.Add(thisDate.Day.ToString(), curValu);
curPeak = val;
curLow = val;
}
else
{
if (val > curPeak)
{
curPeak = val;
}
if (val > 0 && val < curLow)
{
curLow = val;
}
}
curDate = thisDate;
}
barGraph.Regions = (BarRegion[])regions.ToArray(typeof(BarRegion));
return(barGraph);
}
