void JoinSegments(FreePoint point)
{
var dependents = point.Dependents.OfType <Segment>().ToArray();
if (dependents.Length != 2)
{
return;
}
var line1 = dependents[0];
var line2 = dependents[1];
var otherPoint1 = line1.Dependencies.Without(point).FirstOrDefault();
var otherPoint2 = line2.Dependencies.Without(point).FirstOrDefault();
if (otherPoint1 == null || otherPoint2 == null)
{
return;
}
var segment = Factory.CreateSegment(Drawing, new[] { otherPoint1, otherPoint2 });
using (Drawing.ActionManager.CreateTransaction())
{
RemovePointFromPolygons(point);
Actions.Actions.Remove(line2);
Actions.Actions.ReplaceWithNew(line1, segment);
Actions.Actions.Remove(point);
}
}
void RemovePointFromPolygons(FreePoint point)
{
foreach (var polygon in point.Dependents.OfType <PolygonBase>().ToList())
{
if (polygon.Dependencies.Count > 3)
{
RemovePointFromPolygon(point, polygon);
}
}
}
void JoinPolyLineSegments(FreePoint point)
{
var dependents = point.Dependents.OfType <Polyline>().ToArray();
foreach (object obj in dependents)
{
if (obj is Polyline)
{
var polyline = (Polyline)obj;
if (polyline.Dependencies.Count <= 3)
{
return;
}
var NewPolyLinePoints = new List <IFigure>();
// Eliminate deleted point
for (var i = 0; i < polyline.Dependencies.Count; i++)
{
var p1 = polyline.Dependencies[i] as IPoint;
if (p1.Coordinates.X != point.Coordinates.X &&
p1.Coordinates.Y != point.Coordinates.Y)
{
NewPolyLinePoints.Add(p1);
}
}
// create new polyline
var newPolyLine = Factory.CreatePolyline(Drawing, NewPolyLinePoints);
using (Drawing.ActionManager.CreateTransaction())
{
Actions.Actions.Remove(point);
Actions.Actions.ReplaceWithNew(polyline, newPolyLine);
}
}
}
}
void RemovePointFromPolygon(FreePoint point, PolygonBase polygon)
{
Actions.Actions.RemoveDependency(polygon, point);
}
