/// <summary>
/// We create a stroke with points close and then add the stroke to the canvas.
/// If the points are far apart, we create a new stroke for those points.
/// </summary>
/// <param name="inkCanvas"></param>
/// <param name="strokeInfo"></param>
public static void AddStrokePreview(this InkCanvas inkCanvas, StrokeInfo strokeInfo)
{
StylusPoint firstPoint = strokeInfo.PointCollection[0];
StylusPointCollection tmpPoints = new StylusPointCollection();
tmpPoints.Add(firstPoint);
for (int i = 0; i < strokeInfo.PointCollection.Count - 1; i++)
{
if (CalculateDistance(strokeInfo.PointCollection[i], strokeInfo.PointCollection[i + 1]) < 5)
{
tmpPoints.Add(strokeInfo.PointCollection[i + 1]);
}
else
{
inkCanvas.Strokes.Add(CreateStroke(strokeInfo, tmpPoints.Clone()));
tmpPoints.Clear();
tmpPoints.Add(strokeInfo.PointCollection[i + 1]);
}
}
if (tmpPoints.Count > 0)
{
inkCanvas.Strokes.Add(CreateStroke(strokeInfo, tmpPoints));
}
}
public void CopyToStylusPointCollection(StylusPointCollection strokeTipCollection)
{
if (strokeTipCollection == null)
{
throw new ArgumentNullException("strokeTipCollection");
}
strokeTipCollection.Clear();
for (int i = 0; i < _arrayLength; i++)
{
if (_array[i].Description.PropertyCount == 3)
{
continue;
}
strokeTipCollection.Add(_array[i]);
}
}
public void Clear()
{
pointCollection.Clear();
}
private Geometry GenerateStylusPoints(Geometry geo, bool closed)
{
PathGeometry g = geo.GetFlattenedPathGeometry();
StylusPointCollection StylusPointsCopy = StylusPoints.Clone();
connectingPoints = new List <ConnectingPoint>();
StylusPointsCopy.Clear();
Point startPoint = new Point(-1, -1);
foreach (var f in g.Figures)
{
foreach (var s in f.Segments)
{
if (s is PolyLineSegment)
{
for (int i = 0; i < ((PolyLineSegment)s).Points.Count; i++)
{
Point pt = (((PolyLineSegment)s).Points[i]);
if (i == 0)
{
if (startPoint.X == -1 && startPoint.Y == -1)
{
startPoint = pt;
}
connectingPoints.Add(new ConnectingPoint(pt.X, pt.Y, null));
}
else
{
connectingPoints.Add(new ConnectingPoint(pt.X, pt.Y, connectingPoints[connectingPoints.Count - 1]));
}
StylusPointsCopy.Add(new StylusPoint(pt.X, pt.Y));
}
}
else if (s is LineSegment && !closed)
{
Point pt = f.StartPoint;
startPoint = pt;
connectingPoints.Add(new ConnectingPoint(pt.X, pt.Y, null));
StylusPointsCopy.Add(new StylusPoint(pt.X, pt.Y));
pt = (((LineSegment)s).Point);
connectingPoints.Add(new ConnectingPoint(pt.X, pt.Y, connectingPoints[connectingPoints.Count - 1]));
StylusPointsCopy.Add(new StylusPoint(pt.X, pt.Y));
}
}
}
if (closed && !(startPoint.X == -1 && startPoint.Y == -1))
{
StylusPointsCopy.Add(new StylusPoint(startPoint.X, startPoint.Y));
connectingPoints.Add(new ConnectingPoint(startPoint.X, startPoint.Y, connectingPoints[connectingPoints.Count - 1]));
}
for (int i = 0; i < connectingPoints.Count - 1; i++)
{
if (connectingPoints[i + 1].previous != null)
{
connectingPoints[i].next = connectingPoints[i + 1];
}
}
StylusPoints = StylusPointsCopy;
return(g);
}
