/// <summary>
/// Adds a Stroke to our internal data structures - the Sketch and FeatureSketch
/// </summary>
/// Precondition: The InkStroke is not in the InkCanvas's collection of strokes.
/// Postcondition: The InkStroke has been added to the InkCanvas, Sketch's list of
/// Strokes, Substrokes, and FeatureSketch.
/// <param name="inkStroke"></param>
public void AddStroke(System.Windows.Ink.Stroke inkStroke)
{
if (InkCanvas.Strokes.Contains(inkStroke))
{
throw new Exception("adding a stroke to the InkCanvasSketch, but it was already there!");
}
// Format the stroke
inkStroke.AddPropertyData(dtGuid, (ulong)DateTime.Now.ToFileTime());
string strokeId = Guid.NewGuid().ToString();
inkStroke.AddPropertyData(idGuid, strokeId);
// Update the dictionaries
Sketch.Stroke sketchStroke = new Sketch.Stroke(inkStroke, dtGuid, SAMPLE_RATE);
ink2sketchStr.Add(strokeId, sketchStroke.Substrokes[0].XmlAttrs.Id);
sketchStr2ink.Add(sketchStroke.Substrokes[0].Id, strokeId);
substrokeIdMap.Add(sketchStroke.Substrokes[0].Id, sketchStroke.Substrokes[0]);
// Add it to the relevant data structures (InkCanvas last.)
FeatureSketch.AddStroke(sketchStroke);
InkCanvas.Strokes.Add(inkStroke);
}
