some fixes and the ability to start drawing with right-click (Edit) when nothing is highlighted

Source/BuilderModes/ClassicModes/DrawGeometryMode.cs

@@ -745,6 +745,32 @@ namespace CodeImp.DoomBuilder.BuilderModes
 			Update();
 		}
 
+		// This draws a point at a specific location
+		public void DrawPointAt(Vector2D pos, bool stitch)
+		{
+			DrawnVertex newpoint = new DrawnVertex();
+			newpoint.pos = pos;
+			newpoint.stitch = stitch;
+			points.Add(newpoint);
+			labels.Add(new LineLengthLabel());
+			labels[labels.Count - 1].Start = newpoint.pos;
+			if(labels.Count > 1) labels[labels.Count - 2].End = newpoint.pos;
+			Update();
+
+			// Check if point stitches with the first
+			if((points.Count > 1) && (points[points.Count - 1].stitch))
+			{
+				Vector2D p1 = points[0].pos;
+				Vector2D p2 = points[points.Count - 1].pos;
+				Vector2D delta = p1 - p2;
+				if((Math.Abs(delta.x) <= 0.001f) && (Math.Abs(delta.y) <= 0.001f))
+				{
+					// Finish drawing
+					FinishDraw();
+				}
+			}
+		}
+		
 		// Drawing a point
 		[BeginAction("drawpoint")]
 		public void DrawPoint()
@@ -753,24 +779,7 @@ namespace CodeImp.DoomBuilder.BuilderModes
 			if(General.Interface.MouseInDisplay)
 			{
 				DrawnVertex newpoint = GetCurrentPosition();
-				points.Add(newpoint);
-				labels.Add(new LineLengthLabel());
-				labels[labels.Count - 1].Start = newpoint.pos;
-				if(labels.Count > 1) labels[labels.Count - 2].End = newpoint.pos;
-				Update();
-
-				// Check if point stitches with the first
-				if((points.Count > 1) && (points[points.Count - 1].stitch))
-				{
-					Vector2D p1 = points[0].pos;
-					Vector2D p2 = points[points.Count - 1].pos;
-					Vector2D delta = p1 - p2;
-					if((Math.Abs(delta.x) <= 0.001f) && (Math.Abs(delta.y) <= 0.001f))
-					{
-						// Finish drawing
-						FinishDraw();
-					}
-				}
+				DrawPointAt(newpoint.pos, newpoint.stitch);
 			}
 		}
 

Source/BuilderModes/ClassicModes/LinedefsMode.cs

@@ -261,7 +261,7 @@ namespace CodeImp.DoomBuilder.BuilderModes
 			{
 				// Edit pressed in this mode
 				editpressed = true;
-				
+
 				// Highlighted item not selected?
 				if(!highlighted.Selected)
 				{
@@ -282,7 +282,14 @@ namespace CodeImp.DoomBuilder.BuilderModes
 					renderer.Present();
 				}
 			}
-
+			else
+			{
+				// Start drawing mode
+				DrawGeometryMode drawmode = new DrawGeometryMode();
+				drawmode.DrawPointAt(mousemappos, true);
+				General.Map.ChangeMode(drawmode);
+			}
+			
 			base.OnEdit();
 		}
 		

Source/BuilderModes/ClassicModes/SectorsMode.cs

@@ -344,7 +344,14 @@ namespace CodeImp.DoomBuilder.BuilderModes
 					renderer.Present();
 				}
 			}
-
+			else
+			{
+				// Start drawing mode
+				DrawGeometryMode drawmode = new DrawGeometryMode();
+				drawmode.DrawPointAt(mousemappos, true);
+				General.Map.ChangeMode(drawmode);
+			}
+			
 			base.OnEdit();
 		}
 

Source/BuilderModes/ClassicModes/VerticesMode.cs

@@ -46,6 +46,7 @@ namespace CodeImp.DoomBuilder.BuilderModes
 		#region ================== Constants
 
 		public const float VERTEX_HIGHLIGHT_RANGE = 20f;
+		public const float LINEDEF_SPLIT_RANGE = 8f;
 
 		#endregion
 
@@ -242,9 +243,48 @@ namespace CodeImp.DoomBuilder.BuilderModes
 		// Start editing
 		protected override void OnEdit()
 		{
-			// Edit pressed in this mode
-			editpressed = true;
+			// Vertex highlighted?
+			if((highlighted != null) && !highlighted.IsDisposed)
+			{
+				// Edit pressed in this mode
+				editpressed = true;
+			}
+			else
+			{
+				// Find the nearest linedef within highlight range
+				Linedef l = General.Map.Map.NearestLinedefRange(mousemappos, LINEDEF_SPLIT_RANGE / renderer.Scale);
 
+				// Found a line?
+				if(l != null)
+				{
+					// Create undo
+					General.Map.UndoRedo.CreateUndo("Split linedef", UndoGroup.None, 0);
+
+					// Create vertex at nearest point on line
+					Vector2D nearestpos = l.NearestOnLine(mousemappos);
+					Vertex v = General.Map.Map.CreateVertex(nearestpos);
+
+					// Snap to map format accuracy
+					v.SnapToAccuracy();
+
+					// Split the line with this vertex
+					l.Split(v);
+
+					// Highlight it
+					Highlight(v);
+
+					// Redraw display
+					General.Interface.RedrawDisplay();
+				}
+				else
+				{
+					// Start drawing mode
+					DrawGeometryMode drawmode = new DrawGeometryMode();
+					drawmode.DrawPointAt(mousemappos, true);
+					General.Map.ChangeMode(drawmode);
+				}
+			}
+			
 			base.OnEdit();
 		}
 		

Source/Controls/Action.cs

@@ -67,7 +67,9 @@ namespace CodeImp.DoomBuilder.Controls
 		public bool AllowScroll { get { return allowscroll; } }
 		public bool DisregardShift { get { return disregardshift; } }
 		public bool Repeat { get { return repeat; } }
-
+		public bool BeginBound { get { return (begindelegates.Count > 0); } }
+		public bool EndBound { get { return (enddelegates.Count > 0); } }
+		
 		#endregion
 
 		#region ================== Constructor / Disposer

Source/Controls/ActionManager.cs

@@ -469,17 +469,22 @@ namespace CodeImp.DoomBuilder.Controls
 		// This will call the associated actions for a keypress
 		private void BeginActionByKey(int key, bool repeated)
 		{
-			// Go for all actions
+			// Get all actions for which a begin is bound
+			List<Action> boundactions = new List<Action>(actions.Count);
 			foreach(KeyValuePair<string, Action> a in actions)
+				if(a.Value.BeginBound) boundactions.Add(a.Value);
+			
+			// Go for all actions
+			foreach(Action a in boundactions)
 			{
 				// This action is associated with this key?
-				if(a.Value.KeyMatches(key))
+				if(a.KeyMatches(key))
 				{
 					// Allowed to repeat?
-					if(a.Value.Repeat || !repeated)
+					if(a.Repeat || !repeated)
 					{
 						// Invoke action
-						a.Value.Begin();
+						a.Begin();
 					}
 					else
 					{

Source/Editing/ClassicMode.cs

@@ -89,6 +89,21 @@ namespace CodeImp.DoomBuilder.Editing
 			// Initialize
 			this.renderer = General.Map.Renderer2D;
 			this.renderer2d = (Renderer2D)General.Map.Renderer2D;
+
+			// If the current mode is a ClassicMode, copy mouse properties
+			if(General.Map.Mode is ClassicMode)
+			{
+				ClassicMode oldmode = General.Map.Mode as ClassicMode;
+
+				// Copy mouse properties
+				mousepos = oldmode.mousepos;
+				mousemappos = oldmode.mousemappos;
+				mousedownpos = oldmode.mousedownpos;
+				mousedownmappos = oldmode.mousedownmappos;
+				mousebuttons = oldmode.mousebuttons;
+				mouseinside = oldmode.mouseinside;
+				mousedragging = oldmode.mousedragging;
+			}
 		}
 
 		// Disposer