/// <summary>
///
/// </summary>
/// <param name="drawingContext"></param>
/// <param name="mainAtomMetrics"></param>
/// <param name="hMetrics"></param>
/// <param name="isoMetrics"></param>
/// <param name="defaultHOrientation"></param>
/// <returns></returns>
private LabelMetrics DrawCharges(DrawingContext drawingContext,
AtomTextMetrics mainAtomMetrics,
AtomTextMetrics hMetrics,
LabelMetrics isoMetrics,
CompassPoints defaultHOrientation)
{
var chargeString = AtomHelpers.GetChargeString(Charge);
var chargeText = DrawChargeOrRadical(drawingContext, mainAtomMetrics, hMetrics, isoMetrics, chargeString, Fill, defaultHOrientation);
chargeText.TextMetrics.FlattenedPath = chargeText.TextRun.GetOutline();
return(chargeText.TextMetrics);
}
public override void Render()
{
//draw the bracket first
var bb = _boundingBox;
var serifSize = _molecule.Model.XamlBondLength * Globals.BracketFactor;
bb.Inflate(new Size(serifSize, serifSize));
Vector horizontal = new Vector(serifSize, 0.0);
Brush bracketBrush = new SolidColorBrush(Colors.Black);
Pen bracketPen = new Pen(bracketBrush, Globals.BracketThickness);
StreamGeometry sg = new StreamGeometry();
using (DrawingContext dc = RenderOpen())
{
using (StreamGeometryContext sgc = sg.Open())
{
//left bracket
sgc.BeginFigure(bb.BottomLeft + horizontal, false, false);
sgc.LineTo(bb.BottomLeft, true, true);
sgc.LineTo(bb.TopLeft, true, true);
sgc.LineTo(bb.TopLeft + horizontal, true, true);
//right bracket
sgc.BeginFigure(bb.BottomRight - horizontal, false, false);
sgc.LineTo(bb.BottomRight, true, true);
sgc.LineTo(bb.TopRight, true, true);
sgc.LineTo(bb.TopRight - horizontal, true, true);
sgc.Close();
}
dc.DrawGeometry(bracketBrush, bracketPen, sg);
//now draw the charges and radicals
string chargeString = AtomHelpers.GetChargeString(_molecule.FormalCharge);
int? spinMult = _molecule.SpinMultiplicity;
if (_molecule.SpinMultiplicity.HasValue && _molecule.SpinMultiplicity.Value > 1)
{
// Append SpinMultiplicity
switch (_molecule.SpinMultiplicity.Value)
{
case 2:
chargeString += "•";
break;
case 3:
chargeString += "••";
break;
}
}
if (chargeString != "")
{
Point pos = bb.TopRight +
horizontal;
var mlv = new MoleculeLabelVisual(chargeString, pos, bracketBrush, _molecule.Model.XamlBondLength / 2.0d);
mlv.Render(dc);
AddVisualChild(mlv);
}
string countString = _molecule.Count.ToString();
if (!string.IsNullOrEmpty(countString))
{
Point pos = bb.BottomRight +
horizontal;
var mlv = new MoleculeLabelVisual(countString, pos, bracketBrush, _molecule.Model.XamlBondLength / 2.0d);
mlv.Render(dc, true);
AddVisualChild(mlv);
}
}
}