/// <override></override>
public override Shape Clone()
{
Shape result = new RegularPolygoneBase(Type, this.Template);
result.CopyFrom(this);
return(result);
}
private IEnumerable <ControlPointId> GetRegularPolygonAnchorPoints(RegularPolygoneBase polygonShape, Rectangle ownerBounds)
{
if (polygonShape == null)
{
throw new ArgumentNullException("polygonShape");
}
// (Re)store the shape position and one resize point (sufficient for defining the radius)
yield return(ControlPointId.Reference);
// Calculate the point that is closest to the ownerBounds
ControlPointId id = ControlPointId.None;
int radius;
Point dstA = Point.Empty, dstB = Point.Empty;
if (ownerBounds.Width < ownerBounds.Height)
{
radius = ownerBounds.Width / 2;
dstA.Offset(ownerBounds.Left, polygonShape.Y);
dstB.Offset(ownerBounds.Right, polygonShape.Y);
}
else
{
radius = ownerBounds.Height / 2;
dstA.Offset(polygonShape.X, ownerBounds.Top);
dstB.Offset(polygonShape.X, ownerBounds.Bottom);
}
float lowestDistance = int.MaxValue;
float angle = 360f / polygonShape.VertexCount;
for (int i = 0; i < polygonShape.VertexCount; ++i)
{
Point p = Geometry.RotatePoint(polygonShape.X, polygonShape.Y, i * angle, polygonShape.X, polygonShape.Y + radius);
float currentDistance = Math.Min(Geometry.DistancePointPoint(dstA, p), Geometry.DistancePointPoint(dstB, p));
if (currentDistance < lowestDistance)
{
lowestDistance = currentDistance;
id = i + 1;
}
}
yield return(id);
// Correct the final position
yield return(ControlPointId.Reference);
}
/// <override></override>
public override void CopyFrom(Shape source)
{
base.CopyFrom(source);
if (source is RegularPolygoneBase)
{
RegularPolygoneBase src = (RegularPolygoneBase)source;
VertexCount = src.VertexCount;
diameter = src.diameter;
if (pointCount != src.pointCount)
{
Array.Resize(ref shapePoints, src.pointCount);
}
Array.Copy(src.shapePoints, shapePoints, shapePoints.Length);
for (int i = shapePoints.Length - 1; i >= 0; --i)
{
shapePoints[i] = src.shapePoints[i];
}
CalcControlPoints();
drawCacheIsInvalid = true;
}
}
/// <override></override>
public override void CopyFrom(Shape source)
{
base.CopyFrom(source);
if (source is RegularPolygoneBase)
{
RegularPolygoneBase src = (RegularPolygoneBase)source;
VertexCount = src.VertexCount;
_radius = src._radius;
if (_pointCount != src._pointCount)
{
Array.Resize(ref _shapePoints, src._pointCount);
}
Array.Copy(src._shapePoints, _shapePoints, _shapePoints.Length);
for (int i = _shapePoints.Length - 1; i >= 0; --i)
{
_shapePoints[i] = src._shapePoints[i];
}
CalcControlPoints();
DrawCacheIsInvalid = true;
}
}
private IEnumerable<ControlPointId> GetRegularPolygonAnchorPoints(RegularPolygoneBase polygonShape, Rectangle ownerBounds)
{
if (polygonShape == null) throw new ArgumentNullException("polygonShape");
// (Re)store the shape position and one resize point (sufficient for defining the radius)
yield return ControlPointId.Reference;
// Calculate the point that is closest to the ownerBounds
ControlPointId id = ControlPointId.None;
int radius;
Point dstA = Point.Empty, dstB = Point.Empty;
if (ownerBounds.Width < ownerBounds.Height) {
radius = ownerBounds.Width / 2;
dstA.Offset(ownerBounds.Left, polygonShape.Y);
dstB.Offset(ownerBounds.Right, polygonShape.Y);
} else {
radius = ownerBounds.Height / 2;
dstA.Offset(polygonShape.X, ownerBounds.Top);
dstB.Offset(polygonShape.X, ownerBounds.Bottom);
}
float lowestDistance = int.MaxValue;
float angle = 360f / polygonShape.VertexCount;
for (int i = 0; i < polygonShape.VertexCount; ++i) {
Point p = Geometry.RotatePoint(polygonShape.X, polygonShape.Y, i * angle, polygonShape.X, polygonShape.Y + radius);
float currentDistance = Math.Min(Geometry.DistancePointPoint(dstA, p), Geometry.DistancePointPoint(dstB, p));
if (currentDistance < lowestDistance) {
lowestDistance = currentDistance;
id = i + 1;
}
}
yield return id;
// Correct the final position
yield return ControlPointId.Reference;
}
/// <override></override>
public override Shape Clone()
{
Shape result = new RegularPolygoneBase(Type, (Template)null);
result.CopyFrom(this);
return result;
}