public override void Parse(SourceSpan source, XElement element)
{
var name = element.AttributeValue("name");
var args = element.Elements("Argument");
var argTypes = GetArgumentTypes(args);
var argValues = GetArgumentValues(args);
Debug.Assert(argValues.Length == 1 || argValues.Length == 0);
TexFormula formula = null;
if (argValues.Length == 1)
{
var parser = new TexFormulaParser();
formula = parser.Parse((string)argValues[0]);
}
else
{
formula = new TexFormula {
Source = source
};
}
this.SharedCacheFormulas.Add(name, formula);
}
private static void UpdateVisual(string sourceText, VisualContainerElement element)
{
TexFormulaParser.Initialize();
TexFormulaParser _formulaParser = new TexFormulaParser();
// Create formula object from input text.
TexFormula formula = null;
try
{
formula = _formulaParser.Parse(sourceText);
}
#if !DEBUG
catch (Exception ex)
{
MessageBox.Show("An error occurred while parsing the given input:" + Environment.NewLine +
Environment.NewLine + ex.Message, "WPF-Math Example", MessageBoxButton.OK, MessageBoxImage.Error);
return;
}
#endif
finally
{
}
// Render formula to visual.
var visual = new DrawingVisual();
var renderer = formula.GetRenderer(TexStyle.Display, 30d);
var formulaSize = renderer.RenderSize;
using (var drawingContext = visual.RenderOpen())
{
renderer.Render(drawingContext, 0, 1);
}
element.Visual = visual;
//this.Visual = visual;
}
public void AddAccent(string formula, string accentName)
{
AddAccent(formulaParser.Parse(formula), accentName);
}
private TexFormula ParseFormula(string source) =>
_formulaParser.Parse(new SourceSpan("Predefined formula fragment", source, 0, source.Length));