public void CloseFigure()
{
if (figure != null) {
figure.Segments.Insert(insertionIndex, MakeLineSegment(lastLeft, lastTop + cornerRadius));
if (Math.Abs(lastLeft - lastRight) > cornerRadius) {
figure.Segments.Insert(insertionIndex, MakeArc(lastLeft, lastBottom - cornerRadius, SweepDirection.Clockwise));
figure.Segments.Insert(insertionIndex, MakeLineSegment(lastLeft + cornerRadius, lastBottom));
figure.Segments.Insert(insertionIndex, MakeArc(lastRight - cornerRadius, lastBottom, SweepDirection.Clockwise));
}
figure.IsClosed = true;
figures.Add(figure);
figure = null;
}
}
public void Draw(TextView textview, DrawingContext drawingContext)
{
if (_result != null)
{
var backgroundGeometryBuilder = new BackgroundGeometryBuilder
{
CornerRadius = 1.0,
AlignToMiddleOfPixels = true
};
backgroundGeometryBuilder.AddSegment(textview, new TextSegment
{
StartOffset = _result.OpeningBracketOffset,
Length = _result.OpeningBracketLength
});
backgroundGeometryBuilder.CloseFigure();
backgroundGeometryBuilder.AddSegment(textview, new TextSegment
{
StartOffset = _result.ClosingBracketOffset,
Length = _result.ClosingBracketLength
});
var geometry = backgroundGeometryBuilder.CreateGeometry();
if (_borderPen == null)
{
UpdateColors(DefaultBackground, DefaultBackground);
}
if (geometry != null)
{
drawingContext.DrawGeometry(_backgroundBrush, _borderPen, geometry);
}
}
}