/// <summary>
/// Pulled directly from Reflector disassembly
/// </summary>
private LineSegment[] CalculateSegments(IGeometryHost geometryHost, DiagramHitTestInfo hitTestInfo)
{
IBinaryLinkGeometryData data1 = geometryHost as IBinaryLinkGeometryData;
EdgePointCollection collection1 = data1.GeometryEdgePointsNoJumps;
LineSegment[] segmentArray1 = new LineSegment[collection1.Count - 1];
Pen pen1 = geometryHost.GeometryStyleSet.GetPen(this.GetOutlinePenId(geometryHost));
if (pen1 != null)
{
for (int num1 = 0; num1 < (collection1.Count - 1); num1++)
{
RectangleD ed1 = GeometryHelpers.RectangleDFrom2Pts(collection1[num1].Point, collection1[num1 + 1].Point);
// In DSL Tools v8.2, GetHitTestTolerance is an instance method, but in DSL Tools v9.0, it is a static method.
// We call it without a qualifier here so that it will compile against both versions.
SizeD ed2 = GetHitTestTolerance(hitTestInfo);
if (ed1.Height < ed2.Height)
{
ed1.Inflate(0, (pen1.Width / 2f) + ed2.Height);
}
else if (ed1.Width < ed2.Width)
{
ed1.Inflate((pen1.Width / 2f) + ed2.Width, 0);
}
segmentArray1[num1] = new LineSegment(collection1[num1].Point, collection1[num1 + 1].Point, num1, num1 + 1, num1 == 0, (num1 + 1) == (collection1.Count - 1), ed1);
}
}
return(segmentArray1);
}
/// <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
);
}
}
}
}
/// <summary>
/// Override of DoHitTest so it works with non-rectilinear line segments
/// </summary>
public override bool DoHitTest(IGeometryHost geometryHost, PointD hitPoint, DiagramHitTestInfo hitTestInfo, bool includeTolerance)
{
bool retVal = false;
LineSegment hitSegment = null;
AnchorPoint anchorPoint = null;
// In DSL Tools v8.2, GetHitTestTolerance is an instance method, but in DSL Tools v9.0, it is a static method.
// We call it without a qualifier here so that it will compile against both versions.
SizeD tolerance = GetHitTestTolerance(hitTestInfo);
RectangleD perimeter = this.GetPerimeterBoundingBox(geometryHost);
perimeter.Inflate(tolerance);
if (perimeter.Contains(hitPoint))
{
LineSegment[] segments = this.CalculateSegments(geometryHost, hitTestInfo);
int segmentCount = segments.Length;
for (int i = 0; i < segmentCount; ++i)
{
LineSegment testSegment = segments[i];
RectangleD testBounds = GeometryHelpers.RectangleDFrom2Pts(testSegment.StartPoint, testSegment.EndPoint);
testBounds.Inflate(tolerance);
if (testBounds.Contains(hitPoint))
{
anchorPoint = TestHitAnchor(geometryHost as BinaryLinkShape, testSegment, tolerance, hitPoint);
if (anchorPoint != null)
{
retVal = true;
hitSegment = testSegment;
break;
}
double distance = DistanceFromPointToLine(hitPoint, testSegment.StartPoint, testSegment.EndPoint, true);
if (!double.IsNaN(distance) && distance < (tolerance.Width + geometryHost.GeometryStyleSet.GetPen(geometryHost.GeometryOutlinePenId).Width / 2f))
{
retVal = true;
hitSegment = testSegment;
break;
}
}
}
}
if (hitTestInfo != null)
{
DiagramItem diagramItem;
if (retVal)
{
if (anchorPoint == null)
{
// In DSL Tools v8.2, CreateDiagramItem is an instance method, but in DSL Tools v9.0, it is a static method.
// We call it without a qualifier here so that it will compile against both versions.
diagramItem = CreateDiagramItem(geometryHost, hitSegment);
}
else
{
diagramItem = new DiagramItem(geometryHost as LinkShape, hitSegment, anchorPoint);
}
}
else
{
diagramItem = null;
}
hitTestInfo.HitDiagramItem = diagramItem;
hitTestInfo.HitGrabHandle = null;
}
return(retVal);
}
