private AbstractController defineController(Geometry initGeometry, Shape p)
{
/* first try to find the new easy way, from data stored in the Tag */
AbstractController ctrl;
int colonPosition = p.Tag.ToString().IndexOf(':');
if ((colonPosition >= 0) &&
AbstractController.ConstructFromString(p.Tag.ToString().Substring(colonPosition + 1),
this, out ctrl))
{
return(ctrl);
}
if (initGeometry is EllipseGeometry)
{
return(new CircleHyperArcController(this, initGeometry));
}
if (initGeometry is RectangleGeometry)
{
return(new RectangleHyperArcController(this, initGeometry));
}
return(new StarHyperArcController(this, initGeometry));
}
private AbstractController defineController(Path p)
{
/* first try to find the new easy way, from data stored in the Tag */
AbstractController ctrl;
int colonPosition = p.Tag.ToString().IndexOf(':');
if ((colonPosition >= 0) &&
AbstractController.ConstructFromString(p.Tag.ToString().Substring(colonPosition + 1),
this, out ctrl))
{
return(ctrl);
}
/* that didn't work? the old way is to try to parse the shape to get at the right parameters for each controller. */
if ((p.Data is PathGeometry) &&
(((PathGeometry)p.Data).Figures.Count > 0) &&
(((PathGeometry)p.Data).Figures[0].Segments.Count > 0))
// here we are assuming that the first figure, Figures[0], is the arcBody
// if others exist, then they are the arrowHeads
{
var startPt = ((PathGeometry)p.Data).Figures[0].StartPoint;
var segment = ((PathGeometry)p.Data).Figures[0].Segments[0];
if (segment is BezierSegment)
{
return(new BezierArcController(this, segment, startPt));
}
if (segment is PolyLineSegment)
{
return(new RectilinearArcController(this, segment, startPt));
}
if (segment is ArcSegment)
{
return(new CircleArcController(this, segment, startPt));
}
}
return(new StraightArcController(this));
}
