private void considerLink <T>(IGoLink l, IGoPort p, Search s, List <T> items)
{
bool flag = (s & Search.NotSelf) == 0;
if (l.FromPort == p && (flag || l.ToPort.GoObject == null || !l.ToPort.GoObject.IsChildOf(this)))
{
if ((s & Search.LinksOut) != 0)
{
addItem(items, (T)l);
}
if ((s & Search.NodesOut) != 0)
{
addItem(items, (T)l.ToNode);
}
}
if (l.ToPort == p && (flag || l.FromPort.GoObject == null || !l.FromPort.GoObject.IsChildOf(this)))
{
if ((s & Search.LinksIn) != 0)
{
addItem(items, (T)l);
}
if ((s & Search.NodesIn) != 0)
{
addItem(items, (T)l.FromNode);
}
}
}
public override IGoLink CreateLink(IGoPort from, IGoPort to)
{
IGoLink il = base.CreateLink(from, to);
if (il != null)
{
GoLabeledLink l = il.GoObject as GoLabeledLink;
if (l != null)
{
GraphNode fromNode = from.Node.GoObject as GraphNode;
if (fromNode != null && fromNode.Kind == GraphNodeKind.Decision)
{
GoText t = new GoText();
t.Text = "yes";
t.Selectable = false;
t.Editable = true;
l.FromLabel = t;
}
l.Orthogonal = true;
l.Style = GoStrokeStyle.RoundedLine;
l.ToArrow = true;
}
}
return(il);
}
internal GoPortFilteredLinkEnumerator(IGoPort p, List <IGoLink> a, bool dest)
{
myPort = p;
myArray = a;
myIndex = -1;
myDest = dest;
Reset();
}
internal float GetEndSegmentLength(GoBoxPortLinkInfo info)
{
float endSegmentLength = EndSegmentLength;
int num = info.IndexOnSide;
if (num < 0)
{
return(endSegmentLength);
}
int countOnSide = info.CountOnSide;
if (countOnSide <= 1)
{
return(endSegmentLength);
}
IGoLink link = info.Link;
if (!GoLink.IsOrtho(link))
{
return(endSegmentLength);
}
IGoPort otherPort = link.GetOtherPort(this);
if (otherPort == null)
{
return(endSegmentLength);
}
GoObject goObject = otherPort.GoObject;
if (goObject == null)
{
return(endSegmentLength);
}
PointF center = goObject.Center;
PointF center2 = base.Center;
checked
{
if (info.Side == 256 || info.Side == 128)
{
num = countOnSide - 1 - num;
}
float num2 = 8f;
bool flag = info.Side == 256 || info.Side == 64;
if (flag ? (center.Y < center2.Y) : (center.X < center2.X))
{
return(endSegmentLength + (float)num * num2);
}
if (flag ? (center.Y == center2.Y) : (center.X == center2.X))
{
return(endSegmentLength);
}
return(endSegmentLength + (float)(countOnSide - 1 - num) * num2);
}
}
public override bool IsValidLink(IGoPort toPort)
{
var thisNode = Node as IBaseNode;
var toPortNode = toPort.Node as IBaseNode;
if (thisNode == null || toPortNode == null || thisNode == toPortNode)
{
return(false); // do not allow self links
}
return(_isValidLink(thisNode, toPortNode, UserObject, toPort.UserObject));
}
public virtual int NumLinksBetween(IGoPort a, IGoPort b)
{
int count = 0;
foreach (IGoLink l in a.DestinationLinks)
{
if (l.ToPort == b)
{
count++;
}
}
return(count);
}
/// <summary>
/// Determine the angle the port at the other end makes with this port.
/// </summary>
/// <param name="link"></param>
/// <returns>the angle in degrees</returns>
public virtual float GetAngle(IGoLink link)
{
if (link == null)
{
return(0f);
}
IGoPort goPort = link.GetOtherPort(this);
if (goPort == null)
{
if (link.FromPort != null && link.FromPort.GoObject != null && link.FromPort.GoObject.Bounds == Bounds)
{
goPort = link.ToPort;
}
else if (link.ToPort != null && link.ToPort.GoObject != null && link.ToPort.GoObject.Bounds == Bounds)
{
goPort = link.FromPort;
}
}
if (goPort == null)
{
return(0f);
}
GoObject goObject = goPort.GoObject;
if (goObject == null)
{
return(0f);
}
PointF pointF = goObject.Center;
PointF center = base.Center;
GoLink goLink = link as GoLink;
if (goLink == null)
{
GoLabeledLink goLabeledLink = link as GoLabeledLink;
if (goLabeledLink != null)
{
goLink = goLabeledLink.RealLink;
}
}
if (goLink != null && goLink.PointsCount > 0)
{
pointF = ((goLink.FromPort != goPort) ? goLink.GetPoint(checked (goLink.PointsCount - 1)) : goLink.GetPoint(0));
}
return(GoStroke.GetAngle(pointF.X - center.X, pointF.Y - center.Y));
}
public override void DoMouseMove()
{
base.DoMouseMove();
// try to find valid port near to position
IGoPort snapPort = PickNearestPort(this.LastInput.DocPoint);
if (snapPort != null)
{
View.Cursor = Cursors.Hand;
setLinkStyle(Link, Color.Black, 3);
}
else
{
View.Cursor = Cursors.No;
setLinkStyle(Link, Color.Red, 1);
}
}
/// <summary>
/// Make sure each link, either directly in the given collection, or connected to the nodes in
/// the given collection, belong to the appropriate <see cref="T:Northwoods.Go.GoSubGraphBase" />.
/// </summary>
/// <param name="coll"></param>
/// <param name="behind">whether to add the <paramref name="coll" /> at the beginning of the list
/// of the subgraph's children (thus behind all other subgraph children), or at the end of the list
/// (thus appearing in front of all the other subgraph children)</param>
/// <param name="layer">the <see cref="T:Northwoods.Go.GoLayer" /> for links whose ports do not both belong to a <see cref="T:Northwoods.Go.GoSubGraphBase" /></param>
/// <remarks>
/// This calls <see cref="M:Northwoods.Go.GoSubGraphBase.ReparentToCommonSubGraph(Northwoods.Go.GoObject,Northwoods.Go.GoObject,Northwoods.Go.GoObject,System.Boolean,Northwoods.Go.GoLayer)" /> for each <see cref="T:Northwoods.Go.IGoLink" /> in the
/// <paramref name="coll" /> collection, or for each <see cref="T:Northwoods.Go.IGoLink" /> connected to each <see cref="T:Northwoods.Go.IGoNode" />
/// in the <paramref name="coll" /> collection.
/// </remarks>
public static void ReparentAllLinksToSubGraphs(IGoCollection coll, bool behind, GoLayer layer)
{
GoCollection goCollection = new GoCollection();
foreach (GoObject item in coll)
{
goCollection.Add(item);
}
foreach (GoObject item2 in goCollection)
{
IGoNode goNode = item2 as IGoNode;
if (goNode != null)
{
foreach (IGoLink link in goNode.Links)
{
if (link != null && link.FromPort != null && link.ToPort != null)
{
ReparentToCommonSubGraph(link.GoObject, link.FromPort.GoObject, link.ToPort.GoObject, behind, layer);
}
}
}
else
{
IGoPort goPort = item2 as IGoPort;
if (goPort != null)
{
foreach (IGoLink link2 in goPort.Links)
{
if (link2 != null && link2.FromPort != null && link2.ToPort != null)
{
ReparentToCommonSubGraph(link2.GoObject, link2.FromPort.GoObject, link2.ToPort.GoObject, behind, layer);
}
}
}
else
{
IGoLink goLink = item2 as IGoLink;
if (goLink != null && goLink.FromPort != null && goLink.ToPort != null)
{
ReparentToCommonSubGraph(goLink.GoObject, goLink.FromPort.GoObject, goLink.ToPort.GoObject, behind, layer);
}
}
}
}
}
public override bool IsValidLink(IGoPort toPort)
{
if (!base.IsValidLink(toPort))
{
return(false); //checks for example for IsValidDuplicateLinks //does not allow two links into the same direction
}
if (IsLinked(toPort) || ((GoPort)toPort).IsLinked(this))
{
return(false); //do not allow double links
}
var thisNode = Node as IBaseNode;
var toPortNode = toPort.Node as IBaseNode;
if (thisNode == null || toPortNode == null)
{
return(false);
}
return(_isValidLink(thisNode, toPortNode, UserObject, toPort.UserObject));
}
/// <summary>
/// The user can draw a new link if the view allows it
/// and if the port at the input event point is a valid
/// source port or a valid destination port.
/// </summary>
/// <returns></returns>
/// <remarks>
/// This calls <see cref="M:Northwoods.Go.GoToolLinking.PickPort(System.Drawing.PointF)" /> to find a port
/// at the mouse down point. At least one of the
/// <see cref="M:Northwoods.Go.GoToolLinking.IsValidFromPort(Northwoods.Go.IGoPort)" /> and
/// <see cref="M:Northwoods.Go.GoToolLinking.IsValidToPort(Northwoods.Go.IGoPort)" /> predicates
/// must be true for the linking to start.
/// This sets <see cref="P:Northwoods.Go.GoToolLinking.OriginalStartPort" /> property for
/// initializing this tool before the call to <see cref="M:Northwoods.Go.GoToolLinkingNew.Start" />.
/// </remarks>
public override bool CanStart()
{
if (base.FirstInput.IsContextButton)
{
return(false);
}
if (!base.View.CanLinkObjects())
{
return(false);
}
IGoPort goPort2 = base.OriginalStartPort = PickPort(base.FirstInput.DocPoint);
if (goPort2 != null)
{
if (!IsValidFromPort(goPort2))
{
return(IsValidToPort(goPort2));
}
return(true);
}
return(false);
}
public override IGoLink CreateLink(IGoPort from, IGoPort to)
{
IGoLink il = base.CreateLink(from, to);
if (il != null)
{
GoLabeledLink l = il.GoObject as GoLabeledLink;
if (l != null)
{
FlowBlock fromNode = from.Node.GoObject as FlowBlock;
if (fromNode != null && fromNode.Kind == BlockType.Condition)
{
GoText t = new GoText();
t.Text = "yes";
t.Selectable = false;
t.Editable = true;
l.FromLabel = t;
}
//l.Orthogonal = true;
//l.Style = GoStrokeStyle.RoundedLine;
//l.ToArrow = true;
}
}
return il;
}
private void findAllAux <T>(GoObject obj, Search s, List <T> items)
{
IGoPort goPort = obj as IGoPort;
if (goPort != null)
{
if ((s & Search.Ports) != 0)
{
addItem(items, (T)goPort);
}
GoPort goPort2 = goPort as GoPort;
if (goPort2 != null)
{
foreach (IGoLink link in goPort2.Links)
{
considerLink(link, goPort, s, items);
}
}
else
{
foreach (IGoLink link2 in goPort.Links)
{
considerLink(link2, goPort, s, items);
}
}
}
GoGroup goGroup = obj as GoGroup;
if (goGroup != null)
{
foreach (GoObject item in goGroup.GetEnumerator())
{
findAllAux(item, s, items);
}
}
}
public override IGoLink CreateLink(IGoPort from, IGoPort to)
{
IGoLink il = base.CreateLink(from, to);
if (il != null)
{
GoLabeledLink l = il.GoObject as GoLabeledLink;
if (l != null)
{
GraphNode fromNode = from.Node.GoObject as GraphNode;
if (fromNode != null /* && fromNode.Kind == "Decision"*/)
{
GoText t = new GoText();
t.Text = "";
t.Selectable = false;
t.Editable = true;
l.MidLabel = t;
//(l as GraphLink).FromOrTo = "To";
}
//GraphNode toNode = to.Node.GoObject as GraphNode;//bylzydecision
//if (toNode != null && toNode.Kind == "Decision")
//{
// GoText t = new GoText();
// t.Text = "y";
// t.Selectable = false;
// t.Editable = true;
// l.MidLabel = t;
// //(l as GraphLink).FromOrTo = "From";
//}
//l.Orthogonal = true;
//l.Style = GoStrokeStyle.RoundedLine;
//l.ToArrow = true;
}
}
return(il);
}
