public override void Recalculate()
{
var first = this.Dependencies.Polygon(0);
var second = this.Dependencies.Polygon(1);
var newIntersections = Intersect(first, second);
if (AreEqual(intersections, newIntersections))
{
return;
}
intersections = newIntersections;
ClearChildren();
foreach (var intersection in newIntersections)
{
var vertices = new List <PointBase>(intersection.Length);
foreach (var vertex in intersection)
{
var point = new PointBase();
point.MoveToCore(vertex);
point.Dependencies.Add(this);
vertices.Add(point);
AddChild(point);
Drawing.StyleManager.SetStyleIfAvailable(point, "DependentPointStyle");
}
for (int i = 0; i < intersection.Length; i++)
{
var side = new Segment();
if (i == 0)
{
side.Dependencies.Add(vertices[intersection.Length - 1], vertices[0]);
}
else
{
side.Dependencies.Add(vertices[i - 1], vertices[i]);
}
AddChild(side);
Drawing.StyleManager.SetStyleIfAvailable(side, "OtherLine");
}
var polygon = new Polygon();
polygon.Dependencies.AddRange(vertices);
AddChild(polygon);
Drawing.StyleManager.SetStyleIfAvailable(polygon, "OtherShape");
}
UpdateVisual();
}
private void AddVertex()
{
var vertex = new PointBase();
vertex.Drawing = Drawing;
vertices.Add(vertex);
Children.Add(vertex);
if (Drawing != null)
{
vertex.OnAddingToCanvas(Drawing.Canvas);
}
}
void AddFigurePoint(IniFile.Section section, PointBase point, int index)
{
var pointSection1 = sectionLookup["Point" + section["Points" + index.ToString()]];
point.Name = pointSection1["Name"];
point.X = pointSection1.ReadDouble("X");
point.Y = pointSection1.ReadDouble("Y");
SetPointStyle(pointSection1, point);
var pointIndex = GetPointIndex(section, index);
points[pointIndex] = point;
}
protected void AddVertex()
{
var vertex = new PointBase();
vertex.Dependencies.Add(this);
vertex.RegisterWithDependencies();
vertex.Drawing = Drawing;
vertices.Add(vertex);
Children.Add(vertex);
if (Drawing != null)
{
vertex.OnAddingToCanvas(Drawing.Canvas);
}
Drawing.StyleManager.SetStyleIfAvailable(vertex, "DependentPointStyle");
}
public Expression ResolveTwoPoints(string twoPoints)
{
var drawing = Binder.Drawing;
if (drawing == null)
{
return(null);
}
var names = drawing.Figures.Where(f => f is PointBase).Select(f => f.Name).ToArray();
string longestPrefix = "";
string longestSuffix = "";
foreach (var name in names)
{
if (twoPoints.StartsWith(name, StringComparison.OrdinalIgnoreCase) && name.Length > longestPrefix.Length)
{
longestPrefix = name;
}
if (twoPoints.EndsWith(name, StringComparison.OrdinalIgnoreCase) && name.Length > longestSuffix.Length)
{
longestSuffix = name;
}
}
if (longestPrefix.Length + longestSuffix.Length == twoPoints.Length)
{
PointBase point1 = drawing.Figures[longestPrefix] as PointBase;
PointBase point2 = drawing.Figures[longestSuffix] as PointBase;
if (point1 == null)
{
Status.AddFigureIsNotAPointError(longestPrefix);
return(null);
}
if (point2 == null)
{
Status.AddFigureIsNotAPointError(longestSuffix);
return(null);
}
if (!Binder.FigureAllowed(point1))
{
Status.AddDependencyCycleError(longestPrefix);
return(null);
}
if (!Binder.FigureAllowed(point2))
{
Status.AddDependencyCycleError(longestSuffix);
return(null);
}
ConstantExpression p1 = Expression.Constant(point1);
ConstantExpression p2 = Expression.Constant(point2);
MethodInfo distance = typeof(Math).GetMethod("Distance",
new[] { typeof(PointBase), typeof(PointBase) });
MethodCallExpression result = Expression.Call(null, distance, p1, p2);
Status.Dependencies.Add(point1);
Status.Dependencies.Add(point2);
return(result);
}
return(null);
}
private void AddVertex()
{
var vertex = new PointBase();
vertex.Drawing = Drawing;
vertices.Add(vertex);
Children.Add(vertex);
if (Drawing != null)
{
vertex.OnAddingToCanvas(Drawing.Canvas);
}
}