public PointRalation(PointDelegateArgs point, PointDelegateArgs parentPoint)
{
Line = new ScreenSpaceLine2()
{
Stroke = Brushes.Blue,
StrokeDashArray = new DoubleCollection(new[] { 5.0, 3.0 }),
StrokeThickness = 1.0
};
var binding = new Binding(parentPoint.Path);
binding.Source = parentPoint.Object;
binding.Mode = BindingMode.OneWay;
BindingOperations.SetBinding(Line, ScreenSpaceLine2.StartPointProperty, binding);
DependencyPropertyDescriptor.FromProperty(ScreenSpaceLine2.StartPointProperty, typeof(ScreenSpaceLine2)).AddValueChanged(Line, OnParentPointChanged);
parentPoint.Gripper.DragStart += ParentGripper_DragStart;
parentPoint.Gripper.DragEnd += ParentGripper_DragEnd;
binding = new Binding(point.Path);
binding.Source = point.Object;
binding.Mode = BindingMode.TwoWay;
BindingOperations.SetBinding(Line, ScreenSpaceLine2.EndPointProperty, binding);
DependencyPropertyDescriptor.FromProperty(ScreenSpaceLine2.EndPointProperty, typeof(ScreenSpaceLine2)).AddValueChanged(Line, OnPointChanged);
_Delta = Line.EndPoint - Line.StartPoint;
}
public PointDelegateArgs(Point pt, DependencyObject o, string path, PointDelegateArgs parentPoint)
{
Point = pt;
Object = o;
Path = path;
ParentPoint = parentPoint;
PointModified = false;
}
private void ForEachAbsPoint(PointDelegate ptCallback)
{
foreach (var figure in Path.Figures)
{
var args = new PointDelegateArgs(figure.StartPoint, figure, "StartPoint");
ptCallback(args);
if (args.PointModified)
{
figure.StartPoint = args.Point;
}
var lastEndPoint = args;
foreach (var segment in figure.Segments)
{
if (segment is ArcSegment)
{
var arc = segment as ArcSegment;
args = new PointDelegateArgs(arc.Point, segment, "Point");
ptCallback(args);
if (args.PointModified)
{
arc.Point = args.Point;
}
lastEndPoint = args;
}
else if (segment is BezierSegment)
{
var b = segment as BezierSegment;
args = new PointDelegateArgs(b.Point1, segment, "Point1", lastEndPoint);
ptCallback(args);
if (args.PointModified)
{
b.Point1 = args.Point;
}
args = new PointDelegateArgs(b.Point3, segment, "Point3");
ptCallback(args);
if (args.PointModified)
{
b.Point3 = args.Point;
}
lastEndPoint = args;
args = new PointDelegateArgs(b.Point2, segment, "Point2", lastEndPoint);
ptCallback(args);
if (args.PointModified)
{
b.Point2 = args.Point;
}
}
else if (segment is LineSegment)
{
var l = segment as LineSegment;
args = new PointDelegateArgs(l.Point, segment, "Point");
ptCallback(args);
if (args.PointModified)
{
l.Point = args.Point;
}
lastEndPoint = args;
}
else if (segment is PolyBezierSegment)
{
var pb = segment as PolyBezierSegment;
for (int n = 0; n < pb.Points.Count; n += 3)
{
args = new PointDelegateArgs(pb.Points[n + 0], segment, String.Format("Points[{0}]", n + 0), lastEndPoint);
ptCallback(args);
if (args.PointModified)
{
pb.Points[n + 0] = args.Point;
}
args = new PointDelegateArgs(pb.Points[n + 2], segment, String.Format("Points[{0}]", n + 2));
ptCallback(args);
if (args.PointModified)
{
pb.Points[n + 2] = args.Point;
}
lastEndPoint = args;
args = new PointDelegateArgs(pb.Points[n + 1], segment, String.Format("Points[{0}]", n + 1), lastEndPoint);
ptCallback(args);
if (args.PointModified)
{
pb.Points[n + 1] = args.Point;
}
}
}
else if (segment is PolyLineSegment)
{
var pl = segment as PolyLineSegment;
for (int n = 0; n < pl.Points.Count; ++n)
{
args = new PointDelegateArgs(pl.Points[n], segment, String.Format("Points[{0}]", n));
ptCallback(args);
if (args.PointModified)
{
pl.Points[n] = args.Point;
}
lastEndPoint = args;
}
}
else if (segment is PolyQuadraticBezierSegment)
{
var pqb = segment as PolyQuadraticBezierSegment;
for (int n = 0; n < pqb.Points.Count; ++n)
{
args = new PointDelegateArgs(pqb.Points[n + 1], segment, String.Format("Points[{0}]", n + 1));
ptCallback(args);
if (args.PointModified)
{
pqb.Points[n + 1] = args.Point;
}
lastEndPoint = args;
args = new PointDelegateArgs(pqb.Points[n + 0], segment, String.Format("Points[{0}]", n + 0), lastEndPoint);
ptCallback(args);
if (args.PointModified)
{
pqb.Points[n + 0] = args.Point;
}
}
}
else if (segment is QuadraticBezierSegment)
{
var qb = segment as QuadraticBezierSegment;
args = new PointDelegateArgs(qb.Point2, segment, "Point2");
ptCallback(args);
if (args.PointModified)
{
qb.Point2 = args.Point;
}
lastEndPoint = args;
args = new PointDelegateArgs(qb.Point1, segment, "Point1", lastEndPoint);
ptCallback(args);
if (args.PointModified)
{
qb.Point1 = args.Point;
}
}
}
}
}
