private void WriteValueLabels(GraphPane pane, BarItem bar,
string fontFamily, float fontSize, bool isNegative)
{
//shrink the bar font just a little
fontSize -= 1;
double xMin, xMax;
double yMin, yMax;
bar.GetRange(out xMin, out xMax, out yMin, out yMax, false, false, pane);
//adjust singular values so that the label doesn't bleed into the bar
if (isNegative)
{
yMax = Math.Max(yMax, 0);
}
else
{
yMin = Math.Min(yMin, 0);
}
double difference = Math.Abs(yMax - yMin);
double offset = bar.Points.Count == 1 ?
0.05 * difference :
0.1 * difference;
for (int i = 0; i < bar.Points.Count; i++)
{
PointPair pt = bar.Points[i];
if (pt.Y == 0.0)
{
continue;
}
double myOffset = pt.Y > 0 ? offset : -offset;
double myShift = pt.Y > 0 ? 0.75 : 0.65;
string label = pt.Y.ToString("f2") + "%";
// Create a text label from the Y data value
TextObj text = new TextObj(label, (i + myShift), pt.Y + myOffset,
CoordType.AxisXYScale, AlignH.Left, AlignV.Center);
text.FontSpec.Family = fontFamily;
text.FontSpec.Size = fontSize;
text.FontSpec.Angle = 0;
text.FontSpec.Border.IsVisible = false;
text.FontSpec.Fill.IsVisible = false;
text.Location.AlignH = AlignH.Left;
text.Location.AlignV = AlignV.Center;
text.Location.CoordinateFrame = CoordType.AxisXYScale;
text.ZOrder = ZOrder.A_InFront;
pane.GraphObjList.Add(text);
}
}