From 620ffa1bc24db2e31abc2e8fbc19ded1c3f78e58 Mon Sep 17 00:00:00 2001
From: Tim Young <tim.young@lightsys.org>
Date: Fri, 16 Feb 2018 17:48:08 +0000
Subject: [PATCH] right-click delete a link

---
 EduNetworkBuilder/NetworkBuilder.cs | 48 ++++++++++++++++++++++++++++-
 1 file changed, 47 insertions(+), 1 deletion(-)

diff --git a/EduNetworkBuilder/NetworkBuilder.cs b/EduNetworkBuilder/NetworkBuilder.cs
index a565074..a798eb7 100644
--- a/EduNetworkBuilder/NetworkBuilder.cs
+++ b/EduNetworkBuilder/NetworkBuilder.cs
@@ -932,6 +932,27 @@ namespace EduNetworkBuilder
             }
         }
 
+        private void pbNetworkView_RightMouseUponLink(NetworkLink LinkReleasedOn, MouseEventArgs e)
+        {
+            if (LinkReleasedOn == null) return;
+            if (pbNetworkView.ContextMenuStrip == null)
+            {
+                pbNetworkView.ContextMenuStrip = new ContextMenuStrip();
+            }
+            pbNetworkView.ContextMenuStrip.Items.Clear();
+
+            int index=0;
+
+            //We need to make sure the item is not critical before we delete it.
+            pbNetworkView.ContextMenuStrip.Items.Add(NB.Translate("_Delete"));
+            pbNetworkView.ContextMenuStrip.Items[index].Tag = LinkReleasedOn;
+            pbNetworkView.ContextMenuStrip.Items[index++].Click += pbNetworkView_RemoveNetLink_Click;
+
+            pbNetworkView.ContextMenuStrip.Visible = true;
+            pbNetworkView.ContextMenuStrip.Show(Cursor.Position);
+
+        }
+
         private void pbNetworkView_Hide_Click(object sender, EventArgs e)
         {
             if (ItemClickedOn != null)
@@ -1064,6 +1085,21 @@ namespace EduNetworkBuilder
 
         }
 
+        private void pbNetworkView_RemoveNetLink_Click(object sender, EventArgs e)
+        {
+            ToolStripItem thing = (ToolStripItem)sender;
+            if (thing.Tag != null)
+            {
+                NetworkLink NL = (NetworkLink)thing.Tag;
+                myNetwork.RemoveComponent(NL);
+            }
+            myNetwork.TestForCompletion(true);
+            pbNetworkView.Update();
+            UpdateVisuals();
+
+        }
+
+
         private void pbNetworkView_DHCPRequest_Click(object sender, EventArgs e)
         {
             ItemClickedOn.DHCPRequestFromHere();
@@ -1245,6 +1281,15 @@ namespace EduNetworkBuilder
             TimeSpan duration;
             duration = DateTime.Now - LastClick;
 
+            if(ReleasedOnLink != null && e.Button == MouseButtons.Right)
+            {
+                //Right-click on a line.  Make a special context menu for that.
+                //  delete
+                //  edit
+                pbNetworkView_RightMouseUponLink(ReleasedOnLink, e);
+                return; //We do not do the rest of this...
+            }
+
             //Track size of area for the click/drag
             int sx;
             int sy;
@@ -1418,7 +1463,8 @@ namespace EduNetworkBuilder
             ClickedImageLocation = e.Location;
             //See if we have clicked on something
             ItemClickedOn = myNetwork.ItemAtPosition(location);
-            MouseIsDown = true;
+            if(e.Button == MouseButtons.Left)
+                MouseIsDown = true;
             LastMouseDown = DateTime.UtcNow;
             //Make a duplicate of the old background image.
             LastBackgroundImage = new Bitmap(pbNetworkView.BackgroundImage);