timy/EduNetworkBuilder
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recognize if we click on a link

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Tim Young 2018-02-16 17:24:45 +00:00
parent f397456649
commit f7b82d38c9
3 changed files with 60 additions and 0 deletions
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15
EduNetworkBuilder/Network.cs
View File

@ -501,6 +501,21 @@ namespace EduNetworkBuilder
}
return null;
}
public NetworkLink LinkAtPosition(Point NetworkLocation)
{
NetworkLink tLink;
foreach (NetworkComponent tItem in NetComponents)
{
if (tItem is NetworkLink)
{
tLink = (NetworkLink)tItem;
if (tLink.AtLocation(NetworkLocation))
return tLink;
}
}
return null;
}
public List<NetworkDevice> DevicesInRectangle(Rectangle area)
{
NetworkDevice tDevice;

4
EduNetworkBuilder/NetworkBuilder.cs
View File

@ -1233,6 +1233,10 @@ namespace EduNetworkBuilder
Point CenteredLocation = myNetwork.clickedPosCentered(e.Location);
Point ClickLocation = myNetwork.clickedPos(e.Location);
NetworkDevice ReleasedOn = myNetwork.ItemAtPosition(ClickLocation);
NetworkLink ReleasedOnLink = null;
if(ReleasedOn == null)
ReleasedOnLink = myNetwork.LinkAtPosition(ClickLocation);
LastBackgroundImage = null;
pbNetworkView.Image = null; //erase old highlight area
LastMouseMovePos = new Point(-1, -1);

41
EduNetworkBuilder/NetworkLink.cs
View File

@ -320,6 +320,47 @@ namespace EduNetworkBuilder
return usedLinks;
}
public bool AtLocation(Point NetworkPoint)
{
Network myNet = NB.GetNetwork();
NetworkDevice Src = myNet.HostMatchingHostNicID(SrcNic);
NetworkDevice Dst = myNet.HostMatchingHostNicID(DstNic);
int Slop = 10;
int AutoWin = Slop * 2;
//Draw a line between them
if (Src == null || Dst == null)
return false;
Point sPoint = Src.GetCenter();
Point dPoint = Dst.GetCenter();
Rectangle SlopRec = new Rectangle(
Math.Min(sPoint.X, dPoint.X) - Slop,
Math.Min(sPoint.Y, dPoint.Y) - Slop,
Math.Abs(sPoint.X - dPoint.X) + (Slop * 2),
Math.Abs(sPoint.Y - dPoint.Y) + (Slop * 2));
Rectangle ActualRec = new Rectangle(
Math.Min(sPoint.X, dPoint.X),
Math.Min(sPoint.Y, dPoint.Y),
Math.Abs(sPoint.X - dPoint.X),
Math.Abs(sPoint.Y - dPoint.Y));
if (SlopRec.Contains(NetworkPoint))
{
if (ActualRec.Width < AutoWin || ActualRec.Height < AutoWin) return true; //we are close enough
//We are inside it. Now to figure out if we are somewhere along the line
Rectangle smallrec = new Rectangle(Math.Min(sPoint.X, dPoint.X),
Math.Min(sPoint.Y, NetworkPoint.Y),
Math.Abs(sPoint.X - NetworkPoint.X),
Math.Abs(sPoint.Y - NetworkPoint.Y));
double deltax = smallrec.Width / (double)ActualRec.Width;
double deltay = smallrec.Height / (double)ActualRec.Height;
double TrueDelta = Math.Abs(Math.Abs(deltax) - Math.Abs(deltay));
if (TrueDelta > .15) return false;
return true;
}
return false;
}
/// <summary>
/// Have the packet traverse the network
/// </summary>