/// <summary>
/// Override of BinaryLinkShape.ExcludeFromClipRegion to support moving the link
/// decorator and properly rotating it.
/// </summary>
public override void ExcludeFromClipRegion(Graphics g, Matrix matrix, GraphicsPath perimeter)
{
ObliqueBinaryLinkShapeGeometry geometry = this.ShapeGeometry as ObliqueBinaryLinkShapeGeometry;
Pen linePen = this.StyleSet.GetPen(DiagramPens.ConnectionLine);
EdgePointCollection edgePoints = this.EdgePoints;
int edgePointCount = edgePoints.Count;
if ((geometry != null) && (linePen != null))
{
for (int i = 1; i < edgePointCount; ++i)
{
if (edgePoints[i].Flag == VGPointType.JumpEnd)
{
GraphicsPath excludePath = this.ExcludePath;
geometry.AddLineArcPath(excludePath, edgePoints[i - 1].Point, edgePoints[i].Point);
g.SetClip(excludePath, CombineMode.Exclude);
}
else
{
RectangleD excludeRect = GeometryHelpers.RectangleDFrom2Pts(edgePoints[i - 1].Point, edgePoints[i].Point);
double inflateBy = linePen.Width / 2f;
excludeRect.Inflate(inflateBy, inflateBy);
g.SetClip(RectangleD.ToRectangleF(excludeRect), CombineMode.Exclude);
}
}
if (edgePointCount > 1)
{
LinkDecorator decorator;
#if VISUALSTUDIO_10_0
IBinaryLinkGeometryData geometryData = (IBinaryLinkGeometryData)this;
#endif
if (null != (decorator = DecoratorFrom))
{
ExcludeDecorator(g, geometry, decorator, edgePoints[0].Point, edgePoints[1].Point
#if VISUALSTUDIO_10_0
, geometryData.GeometryDecoratorFromSize
#endif
);
}
if (null != (decorator = DecoratorTo))
{
ExcludeDecorator(g, geometry, decorator, edgePoints[edgePointCount - 1].Point, edgePoints[edgePointCount - 2].Point
#if VISUALSTUDIO_10_0
, geometryData.GeometryDecoratorToSize
#endif
);
}
}
}
}
private static void ExcludeDecorator(Graphics g, ObliqueBinaryLinkShapeGeometry geometry, LinkDecorator decorator, PointD fromPoint, PointD toPoint)
{
SizeD size = LinkShapeGeometry.SizeDecorator;
#endif
ILinkDecoratorSettings settings = decorator as ILinkDecoratorSettings;
double offsetBy = double.NaN;
if (settings != null)
{
size = settings.DecoratorSize;
offsetBy = settings.OffsetBy;
if (VGConstants.FuzzZero(offsetBy, VGConstants.FuzzDistance))
{
offsetBy = double.NaN;
}
}
RectangleD bounds = new RectangleD(fromPoint.X - size.Width, fromPoint.Y - (size.Height / 2), size.Width, size.Height);
float rotationAngle = geometry.CalculateRotationAngle(fromPoint, toPoint);
ExcludeDecorator(g, bounds, rotationAngle, offsetBy, fromPoint);
}
private static void ExcludeDecorator(Graphics g, ObliqueBinaryLinkShapeGeometry geometry, LinkDecorator decorator, PointD fromPoint, PointD toPoint)
{
SizeD size = LinkShapeGeometry.SizeDecorator;
#endif
ILinkDecoratorSettings settings = decorator as ILinkDecoratorSettings;
double offsetBy = double.NaN;
if (settings != null)
{
size = settings.DecoratorSize;
offsetBy = settings.OffsetBy;
if (VGConstants.FuzzZero(offsetBy, VGConstants.FuzzDistance))
{
offsetBy = double.NaN;
}
}
RectangleD bounds = new RectangleD(fromPoint.X - size.Width, fromPoint.Y - (size.Height / 2), size.Width, size.Height);
float rotationAngle = geometry.CalculateRotationAngle(fromPoint, toPoint);
ExcludeDecorator(g, bounds, rotationAngle, offsetBy, fromPoint);
}
private static void ExcludeDecorator(Graphics g, ObliqueBinaryLinkShapeGeometry geometry, LinkDecorator decorator, PointD fromPoint, PointD toPoint, SizeD size)
{
private static void ExcludeDecorator(Graphics g, ObliqueBinaryLinkShapeGeometry geometry, LinkDecorator decorator, PointD fromPoint, PointD toPoint, SizeD size)
{
