public void DrawText(Point anchor, Drawing.Text.TextAlignment alignment, IList <TextRun> textRuns)
{
double totalWidth = 0d;
double totalHeight = 0d;
foreach (TextRun run in textRuns)
{
FormattedText ft = new FormattedText(run.Text, System.Globalization.CultureInfo.CurrentCulture, FlowDirection.LeftToRight, new Typeface(RenderHelper.CircuitFont()), run.Formatting.Size, Brushes.Black);
if (run.Formatting.FormattingType == TextRunFormattingType.Subscript)
{
ft = new FormattedText(run.Text, System.Globalization.CultureInfo.CurrentCulture, FlowDirection.LeftToRight, new Typeface(RenderHelper.CircuitFont()), run.Formatting.Size / 1.5, Brushes.Black);
}
totalWidth += ft.Width;
if (ft.Height > totalHeight)
{
totalHeight = ft.Height;
}
}
var renderLocation = anchor.ToWinPoint();
if (alignment == TextAlignment.TopCentre || alignment == TextAlignment.CentreCentre || alignment == TextAlignment.BottomCentre)
{
renderLocation.X -= totalWidth / 2;
}
else if (alignment == TextAlignment.TopRight || alignment == TextAlignment.CentreRight || alignment == TextAlignment.BottomRight)
{
renderLocation.X -= totalWidth;
}
if (alignment == TextAlignment.CentreLeft || alignment == TextAlignment.CentreCentre || alignment == TextAlignment.CentreRight)
{
renderLocation.Y -= totalHeight / 2;
}
else if (alignment == TextAlignment.BottomLeft || alignment == TextAlignment.BottomCentre || alignment == TextAlignment.BottomRight)
{
renderLocation.Y -= totalHeight;
}
double horizontalOffsetCounter = 0;
foreach (TextRun run in textRuns)
{
if (run.Formatting.FormattingType == TextRunFormattingType.Normal)
{
FormattedText formattedText = new FormattedText(run.Text, System.Globalization.CultureInfo.CurrentCulture, FlowDirection.LeftToRight, new Typeface(RenderHelper.CircuitFont()), run.Formatting.Size, Brushes.Black);
Context.DrawText(formattedText, System.Windows.Point.Add(renderLocation, new Vector(horizontalOffsetCounter, 0d)));
horizontalOffsetCounter += formattedText.Width;
}
else if (run.Formatting.FormattingType == TextRunFormattingType.Subscript)
{
FormattedText formattedText = new FormattedText(run.Text, System.Globalization.CultureInfo.CurrentCulture, FlowDirection.LeftToRight, new Typeface(RenderHelper.CircuitFont()), run.Formatting.Size / 1.5, Brushes.Black);
Context.DrawText(formattedText, System.Windows.Point.Add(renderLocation, new Vector(horizontalOffsetCounter, totalHeight - formattedText.Height)));
horizontalOffsetCounter += formattedText.Width;
}
else if (run.Formatting.FormattingType == TextRunFormattingType.Superscript)
{
FormattedText formattedText = new FormattedText(run.Text, System.Globalization.CultureInfo.CurrentCulture, FlowDirection.LeftToRight, new Typeface(RenderHelper.CircuitFont()), run.Formatting.Size / 1.5, Brushes.Black);
Context.DrawText(formattedText, System.Windows.Point.Add(renderLocation, new Vector(horizontalOffsetCounter, -3d)));
horizontalOffsetCounter += formattedText.Width;
}
}
}
