コード例 #1
0
        /// <summary>
        /// Draws the Node Canvas on the screen in the rect specified by editorState without one-time wrappers like GUISkin and OverlayGUI. Made for nested Canvases (WIP)
        /// </summary>
        private static void DrawSubCanvas(NodeCanvas nodeCanvas, NodeEditorState editorState)
        {
            if (!editorState.drawing)
            {
                return;
            }

            BeginEditingCanvas(nodeCanvas, editorState);

            if (Event.current.type == EventType.Repaint)
            {             // Draw Background when Repainting
                // Offset from origin in tile units
                Vector2 tileOffset = new Vector2(-(curEditorState.zoomPos.x * curEditorState.zoom + curEditorState.panOffset.x) / NodeEditorGUI.Background.width,
                                                 ((curEditorState.zoomPos.y - curEditorState.canvasRect.height) * curEditorState.zoom + curEditorState.panOffset.y) / NodeEditorGUI.Background.height);
                // Amount of tiles
                Vector2 tileAmount = new Vector2(Mathf.Round(curEditorState.canvasRect.width * curEditorState.zoom) / NodeEditorGUI.Background.width,
                                                 Mathf.Round(curEditorState.canvasRect.height * curEditorState.zoom) / NodeEditorGUI.Background.height);
                // Draw tiled background
                GUI.DrawTextureWithTexCoords(curEditorState.canvasRect, NodeEditorGUI.Background, new Rect(tileOffset, tileAmount));
            }

            // Handle input events
            NodeEditorInputSystem.HandleInputEvents(curEditorState);
            if (Event.current.type != EventType.Layout)
            {
                curEditorState.ignoreInput = new List <Rect> ();
            }

            // We're using a custom scale method, as default one is messing up clipping rect
            Rect canvasRect = curEditorState.canvasRect;

            curEditorState.zoomPanAdjust = GUIScaleUtility.BeginScale(ref canvasRect, curEditorState.zoomPos, curEditorState.zoom, NodeEditorGUI.isEditorWindow, false);

            // ---- BEGIN SCALE ----

            // Some features which require zoomed drawing:

            if (curEditorState.navigate)
            {             // Draw a curve to the origin/active node for orientation purposes
                Vector2 startPos = (curEditorState.selectedNode != null? curEditorState.selectedNode.rect.center : curEditorState.panOffset) + curEditorState.zoomPanAdjust;
                Vector2 endPos   = Event.current.mousePosition;
                RTEditorGUI.DrawLine(startPos, endPos, Color.green, null, 3);
                RepaintClients();
            }

            if (curEditorState.connectOutput != null)
            {             // Draw the currently drawn connection
                NodeOutput output   = curEditorState.connectOutput;
                Vector2    startPos = output.GetGUIKnob().center;
                Vector2    startDir = output.GetDirection();
                Vector2    endPos   = Event.current.mousePosition;
                Vector2    endDir   = -startDir;            // NodeEditorGUI.GetSecondConnectionVector (startPos, endPos, startDir); <- causes unpleasant jumping when switching polarity

                NodeEditorGUI.OptimiseBezierDirections(startPos, ref startDir, endPos, ref endDir);
                NodeEditorGUI.DrawConnection(startPos, startDir, endPos, endDir, output.typeData.Color);
                RepaintClients();
            }

            // Draw the groups below everything else
            for (int groupCnt = 0; groupCnt < curNodeCanvas.groups.Count; groupCnt++)
            {
                curNodeCanvas.groups [groupCnt].DrawGroup();
            }

            // Push the active node to the top of the draw order.
            if (Event.current.type == EventType.Layout && curEditorState.selectedNode != null)
            {
                curNodeCanvas.nodes.Remove(curEditorState.selectedNode);
                curNodeCanvas.nodes.Add(curEditorState.selectedNode);
            }

            // Draw the transitions and connections. Has to be drawn before nodes as transitions originate from node centers
            for (int nodeCnt = 0; nodeCnt < curNodeCanvas.nodes.Count; nodeCnt++)
            {
                curNodeCanvas.nodes [nodeCnt].DrawConnections();
            }

            // Draw the nodes
            for (int nodeCnt = 0; nodeCnt < curNodeCanvas.nodes.Count; nodeCnt++)
            {
                Node node = curNodeCanvas.nodes [nodeCnt];
                node.DrawNode();
                if (Event.current.type == EventType.Repaint)
                {
                    node.DrawKnobs();
                }
            }

            // ---- END SCALE ----

            // End scaling group
            GUIScaleUtility.EndScale();

            // Handle input events with less priority than node GUI controls
            NodeEditorInputSystem.HandleLateInputEvents(curEditorState);

            EndEditingCanvas();
        }
コード例 #2
0
ファイル: NodeEditor.cs プロジェクト: gouki04/Node_Editor
        /// <summary>
        /// Draws the Node Canvas on the screen in the rect specified by editorState without one-time wrappers like GUISkin and OverlayGUI. Made for nested Canvases (WIP)
        /// </summary>
        private static void DrawSubCanvas(NodeCanvas nodeCanvas, NodeEditorState editorState)
        {
            if (!editorState.drawing)
            {
                return;
            }

            // Store and restore later on in case of this being a nested Canvas
            NodeCanvas      prevNodeCanvas  = curNodeCanvas;
            NodeEditorState prevEditorState = curEditorState;

            curNodeCanvas  = nodeCanvas;
            curEditorState = editorState;

            if (Event.current.type == EventType.Repaint)
            {             // Draw Background when Repainting
                // Size in pixels the inividual background tiles will have on screen
                float width  = curEditorState.zoom / NodeEditorGUI.Background.width;
                float height = curEditorState.zoom / NodeEditorGUI.Background.height;
                // Offset of the grid relative to the GUI origin
                Vector2 offset = curEditorState.zoomPos + curEditorState.panOffset / curEditorState.zoom;
                // Rect in UV space that defines how to tile the background texture
                Rect uvDrawRect = new Rect(-offset.x * width,
                                           (offset.y - curEditorState.canvasRect.height) * height,
                                           curEditorState.canvasRect.width * width,
                                           curEditorState.canvasRect.height * height);
                GUI.DrawTextureWithTexCoords(curEditorState.canvasRect, NodeEditorGUI.Background, uvDrawRect);
            }

            // Handle input events
            NodeEditorInputSystem.HandleInputEvents(curEditorState);
            if (Event.current.type != EventType.Layout)
            {
                curEditorState.ignoreInput = new List <Rect> ();
            }

            // We're using a custom scale method, as default one is messing up clipping rect
            Rect canvasRect = curEditorState.canvasRect;

            curEditorState.zoomPanAdjust = GUIScaleUtility.BeginScale(ref canvasRect, curEditorState.zoomPos, curEditorState.zoom, false);

            // ---- BEGIN SCALE ----

            // Some features which require zoomed drawing:

            if (curEditorState.navigate)
            {             // Draw a curve to the origin/active node for orientation purposes
                Vector2 startPos = (curEditorState.selectedNode != null? curEditorState.selectedNode.rect.center : curEditorState.panOffset) + curEditorState.zoomPanAdjust;
                Vector2 endPos   = Event.current.mousePosition;
                RTEditorGUI.DrawLine(startPos, endPos, Color.green, null, 3);
                RepaintClients();
            }

            if (curEditorState.connectOutput != null)
            {             // Draw the currently drawn connection
                NodeOutput output   = curEditorState.connectOutput;
                Vector2    startPos = output.GetGUIKnob().center;
                Vector2    startDir = output.GetDirection();
                Vector2    endPos   = Event.current.mousePosition;
                // There is no specific direction of the end knob so we pick the best according to the relative position
                Vector2 endDir = NodeEditorGUI.GetSecondConnectionVector(startPos, endPos, startDir);
                NodeEditorGUI.DrawConnection(startPos, startDir, endPos, endDir, output.typeData.Color);
                RepaintClients();
            }

            // Push the active node to the top of the draw order.
            if (Event.current.type == EventType.Layout && curEditorState.selectedNode != null)
            {
                curNodeCanvas.nodes.Remove(curEditorState.selectedNode);
                curNodeCanvas.nodes.Add(curEditorState.selectedNode);
            }

            // Draw the transitions and connections. Has to be drawn before nodes as transitions originate from node centers
            for (int nodeCnt = 0; nodeCnt < curNodeCanvas.nodes.Count; nodeCnt++)
            {
                curNodeCanvas.nodes [nodeCnt].DrawConnections();
            }

            // Draw the nodes
            for (int nodeCnt = 0; nodeCnt < curNodeCanvas.nodes.Count; nodeCnt++)
            {
                Node node = curNodeCanvas.nodes [nodeCnt];
                node.DrawNode();
                if (Event.current.type == EventType.Repaint)
                {
                    node.DrawKnobs();
                }
            }

            // ---- END SCALE ----

            // End scaling group
            GUIScaleUtility.EndScale();

            // Handle input events with less priority than node GUI controls
            NodeEditorInputSystem.HandleLateInputEvents(curEditorState);

            curNodeCanvas  = prevNodeCanvas;
            curEditorState = prevEditorState;
        }
コード例 #3
0
        /// <summary>
        /// Draws the Node Canvas on the screen in the rect specified by editorState without one-time wrappers like GUISkin and OverlayGUI. Made for nested Canvases (WIP)
        /// </summary>
        private static void DrawSubCanvas(NodeCanvas nodeCanvas, NodeEditorState editorState)
        {
            if (!editorState.drawing)
            {
                return;
            }

            BeginEditingCanvas(nodeCanvas, editorState);
            if (curNodeCanvas == null || curEditorState == null || !curEditorState.drawing)
            {
                return;
            }

            if (Event.current.type == EventType.Repaint)
            {
                // Draw Background when Repainting
                // Offset from origin in tile units
                Vector2 tileOffset = new Vector2(
                    -(curEditorState.zoomPos.x * curEditorState.zoom + curEditorState.panOffset.x) / NodeEditorGUI.Background.width,
                    ((curEditorState.zoomPos.y - curEditorState.canvasRect.height) * curEditorState.zoom + curEditorState.panOffset.y) /
                    NodeEditorGUI.Background.height);
                // Amount of tiles
                Vector2 tileAmount = new Vector2(Mathf.Round(curEditorState.canvasRect.width * curEditorState.zoom) / NodeEditorGUI.Background.width,
                                                 Mathf.Round(curEditorState.canvasRect.height * curEditorState.zoom) / NodeEditorGUI.Background.height);
                // Draw tiled background
                GUI.DrawTextureWithTexCoords(curEditorState.canvasRect, NodeEditorGUI.Background, new Rect(tileOffset, tileAmount));
            }

            // Handle input events
            NodeEditorInputSystem.HandleInputEvents(curEditorState);

            HandleMultipleSelect();

            if (Event.current.type != EventType.Layout)
            {
                curEditorState.ignoreInput = new List <Rect>();
            }

            // We're using a custom scale method, as default one is messing up clipping rect
            Rect canvasRect = curEditorState.canvasRect;

            curEditorState.zoomPanAdjust = GUIScaleUtility.BeginScale(ref canvasRect, curEditorState.zoomPos, curEditorState.zoom,
                                                                      NodeEditorGUI.isEditorWindow, false);

            // ---- BEGIN SCALE ----

            // Some features which require zoomed drawing:

            if (curEditorState.navigate)
            {
                // Draw a curve to the origin/active node for orientation purposes
                Vector2 startPos = (curEditorState.selectedNodes.Count > 0? curEditorState.selectedNodes[0].rect.center : curEditorState.panOffset) +
                                   curEditorState.zoomPanAdjust;
                Vector2 endPos = Event.current.mousePosition;
                RTEditorGUI.DrawLine(startPos, endPos, Color.green, null, 3);
                RepaintClients();
            }

            if (curEditorState.connectKnob != null)
            {
                // Draw the currently drawn connection
                curEditorState.connectKnob.DrawConnection(Event.current.mousePosition);
                RepaintClients();
            }

            // Draw the groups below everything else
            for (int groupCnt = 0; groupCnt < curNodeCanvas.groups.Count; groupCnt++)
            {
                NodeGroup group = curNodeCanvas.groups[groupCnt];
                if (Event.current.type == EventType.Layout)
                {
                    group.isClipped = !curEditorState.canvasViewport.Overlaps(group.fullAABBRect);
                }
                if (!group.isClipped)
                {
                    group.DrawGroup();
                }
            }

            // Push the active node to the top of the draw order.
            if (Event.current.type == EventType.Layout && curEditorState.selectedNodes.Count > 0)
            {
                foreach (var node in curEditorState.selectedNodes)
                {
                    curNodeCanvas.nodes.Remove(node);
                    curNodeCanvas.nodes.Add(node);
                }
            }

            // Draw the transitions and connections. Has to be drawn before nodes as transitions originate from node centers
            for (int nodeCnt = 0; nodeCnt < curNodeCanvas.nodes.Count; nodeCnt++)
            {
                curNodeCanvas.nodes[nodeCnt].DrawConnections();
            }

            // Draw the nodes
            for (int nodeCnt = 0; nodeCnt < curNodeCanvas.nodes.Count; nodeCnt++)
            {
                Node node = curNodeCanvas.nodes[nodeCnt];
                if (Event.current.type == EventType.Layout)
                {
                    node.isClipped = !curEditorState.canvasViewport.Overlaps(curNodeCanvas.nodes[nodeCnt].fullAABBRect);
                }
                if (!node.isClipped || node.ForceGUIDawOffScreen)
                {
                    node.DrawNode();
                    if (Event.current.type == EventType.Repaint)
                    {
                        node.DrawKnobs();
                    }
                }
            }

            // ---- END SCALE ----

            // End scaling group
            GUIScaleUtility.EndScale();

            // Handle input events with less priority than node GUI controls
            NodeEditorInputSystem.HandleLateInputEvents(curEditorState);

            EndEditingCanvas();
        }
コード例 #4
0
        /// <summary>
        /// Draws the Node Canvas on the screen in the rect specified by editorState without one-time wrappers like GUISkin and OverlayGUI. Made for nested Canvases (WIP)
        /// </summary>
        private static void DrawSubCanvas(NodeCanvas nodeCanvas, NodeEditorState editorState)
        {
            if (!editorState.drawing)
            {
                return;
            }

            BeginEditingCanvas(nodeCanvas, editorState);
            if (curNodeCanvas == null || curEditorState == null || !curEditorState.drawing)
            {
                return;
            }

            if (Event.current.type == EventType.Repaint)
            {
                //绘制NodeEditor背景
                EditorGUI.DrawRect(curEditorState.canvasRect, new Color(28 / 255f, 28 / 255f, 28 / 255f));
            }

            // Handle input events
            NodeEditorInputSystem.HandleInputEvents(curEditorState);

            HandleMultipleSelect();

            if (Event.current.type != EventType.Layout)
            {
                curEditorState.ignoreInput = new List <Rect>();
            }

            // We're using a custom scale method, as default one is messing up clipping rect
            Rect canvasRect = curEditorState.canvasRect;

            curEditorState.zoomPanAdjust = GUIScaleUtility.BeginScale(ref canvasRect, curEditorState.zoomPos, curEditorState.zoom,
                                                                      NodeEditorGUI.isEditorWindow, false);

            // 开始绘制缩放区域
            if (curEditorState.connectKnob != null)
            {
                // Draw the currently drawn connection
                curEditorState.connectKnob.DrawConnection(Event.current.mousePosition);
                RepaintClients();
            }

            // Draw the groups below everything else
            for (int groupCnt = 0; groupCnt < curNodeCanvas.groups.Count; groupCnt++)
            {
                NodeGroup group = curNodeCanvas.groups[groupCnt];
                if (Event.current.type == EventType.Layout)
                {
                    group.isClipped = !curEditorState.canvasViewport.Overlaps(group.fullAABBRect);
                }
                if (!group.isClipped)
                {
                    group.DrawGroup();
                }
            }

            // Draw the transitions and connections. Has to be drawn before nodes as transitions originate from node centers
            for (int nodeCnt = 0; nodeCnt < curNodeCanvas.nodes.Count; nodeCnt++)
            {
                curNodeCanvas.nodes[nodeCnt].DrawConnections();
            }

            // Draw the nodes
            for (int nodeCnt = 0; nodeCnt < curNodeCanvas.nodes.Count; nodeCnt++)
            {
                Node node = curNodeCanvas.nodes[nodeCnt];
                if (Event.current.type == EventType.Layout)
                {
                    node.isClipped = !curEditorState.canvasViewport.Overlaps(curNodeCanvas.nodes[nodeCnt].fullAABBRect);
                }
                if (node.isClipped)
                {
                    continue;
                }

                node.DrawNode();
                if (Event.current.type == EventType.Repaint)
                {
                    node.DrawKnobs();
                }
            }

            // ---- END SCALE ----

            // End scaling group
            GUIScaleUtility.EndScale();

            // Handle input events with less priority than node GUI controls
            NodeEditorInputSystem.HandleLateInputEvents(curEditorState);

            EndEditingCanvas();
        }
コード例 #5
0
 private static void DrawSubCanvas(NodeCanvas nodeCanvas, NodeEditorState editorState)
 {
     if (editorState.drawing)
     {
         NodeCanvas      nodeCanvas2     = curNodeCanvas;
         NodeEditorState nodeEditorState = curEditorState;
         curNodeCanvas  = nodeCanvas;
         curEditorState = editorState;
         if (Event.current.type == EventType.Repaint)
         {
             float   num    = curEditorState.zoom / (float)NodeEditorGUI.Background.width;
             float   num2   = curEditorState.zoom / (float)NodeEditorGUI.Background.height;
             Vector2 vector = curEditorState.zoomPos + curEditorState.panOffset / curEditorState.zoom;
             GUI.DrawTextureWithTexCoords(texCoords: new Rect((0f - vector.x) * num, (vector.y - curEditorState.canvasRect.height) * num2, curEditorState.canvasRect.width * num, curEditorState.canvasRect.height * num2), position: curEditorState.canvasRect, image: NodeEditorGUI.Background);
         }
         NodeEditorInputSystem.HandleInputEvents(curEditorState);
         if (Event.current.type != EventType.Layout)
         {
             curEditorState.ignoreInput = new List <Rect>();
         }
         Rect rect = curEditorState.canvasRect;
         curEditorState.zoomPanAdjust = GUIScaleUtility.BeginScale(ref rect, curEditorState.zoomPos, curEditorState.zoom, false);
         if (curEditorState.navigate)
         {
             Vector2 startPos      = ((!((UnityEngine.Object)curEditorState.selectedNode != (UnityEngine.Object)null)) ? curEditorState.panOffset : curEditorState.selectedNode.rect.center) + curEditorState.zoomPanAdjust;
             Vector2 mousePosition = Event.current.mousePosition;
             RTEditorGUI.DrawLine(startPos, mousePosition, Color.green, null, 3f);
             RepaintClients();
         }
         if ((UnityEngine.Object)curEditorState.connectOutput != (UnityEngine.Object)null)
         {
             NodeOutput connectOutput          = curEditorState.connectOutput;
             Vector2    center                 = connectOutput.GetGUIKnob().center;
             Vector2    direction              = connectOutput.GetDirection();
             Vector2    mousePosition2         = Event.current.mousePosition;
             Vector2    secondConnectionVector = NodeEditorGUI.GetSecondConnectionVector(center, mousePosition2, direction);
             NodeEditorGUI.DrawConnection(center, direction, mousePosition2, secondConnectionVector, connectOutput.typeData.Color);
             RepaintClients();
         }
         if (Event.current.type == EventType.Layout && (UnityEngine.Object)curEditorState.selectedNode != (UnityEngine.Object)null)
         {
             curNodeCanvas.nodes.Remove(curEditorState.selectedNode);
             curNodeCanvas.nodes.Add(curEditorState.selectedNode);
         }
         for (int i = 0; i < curNodeCanvas.nodes.Count; i++)
         {
             curNodeCanvas.nodes[i].DrawConnections();
         }
         for (int j = 0; j < curNodeCanvas.nodes.Count; j++)
         {
             Node node = curNodeCanvas.nodes[j];
             node.DrawNode();
             if (Event.current.type == EventType.Repaint)
             {
                 node.DrawKnobs();
             }
         }
         GUIScaleUtility.EndScale();
         NodeEditorInputSystem.HandleLateInputEvents(curEditorState);
         curNodeCanvas  = nodeCanvas2;
         curEditorState = nodeEditorState;
     }
 }
コード例 #6
0
        /// <summary>
        /// Draws the Node Canvas on the screen in the rect specified by editorState without one-time wrappers like GUISkin and OverlayGUI. Made for nested Canvases (WIP)
        /// </summary>
        public static void DrawSubCanvas(NodeCanvas nodeCanvas, NodeEditorState editorState)
        {
            if (!editorState.drawing)
            {
                return;
            }

            // Store and restore later on in case of this being a nested Canvas
            NodeCanvas      prevNodeCanvas  = curNodeCanvas;
            NodeEditorState prevEditorState = curEditorState;

            curNodeCanvas  = nodeCanvas;
            curEditorState = editorState;

            if (Event.current.type == EventType.Repaint)
            {             // Draw Background when Repainting
                GUI.BeginClip(curEditorState.canvasRect);

                float   width  = NodeEditorGUI.Background.width / curEditorState.zoom;
                float   height = NodeEditorGUI.Background.height / curEditorState.zoom;
                Vector2 offset = curEditorState.zoomPos + curEditorState.panOffset / curEditorState.zoom;
                offset = new Vector2(offset.x % width - width, offset.y % height - height);
                int tileX = Mathf.CeilToInt((curEditorState.canvasRect.width + (width - offset.x)) / width);
                int tileY = Mathf.CeilToInt((curEditorState.canvasRect.height + (height - offset.y)) / height);

                for (int x = 0; x < tileX; x++)
                {
                    for (int y = 0; y < tileY; y++)
                    {
                        GUI.DrawTexture(new Rect(offset.x + x * width,
                                                 offset.y + y * height,
                                                 width, height),
                                        NodeEditorGUI.Background);
                    }
                }
                GUI.EndClip();
            }

            // Check the inputs
            InputEvents();
            if (Event.current.type != EventType.Layout)
            {
                curEditorState.ignoreInput = new List <Rect> ();
            }

            // We're using a custom scale method, as default one is messing up clipping rect
            Rect canvasRect = curEditorState.canvasRect;

            curEditorState.zoomPanAdjust = GUIScaleUtility.BeginScale(ref canvasRect, curEditorState.zoomPos, curEditorState.zoom, false);
            //GUILayout.Label ("Scaling is Great!"); -> TODO: Test by changing the last bool parameter

            // ---- BEGIN SCALE ----

            // Some features which require drawing (zoomed)
            if (curEditorState.navigate)
            {             // Draw a curve to the origin/active node for orientation purposes
                RTEditorGUI.DrawLine((curEditorState.selectedNode != null? curEditorState.selectedNode.rect.center : curEditorState.panOffset) + curEditorState.zoomPanAdjust,
                                     ScreenToGUIPos(mousePos) + curEditorState.zoomPos * curEditorState.zoom,
                                     Color.black, null, 3);
                RepaintClients();
            }
            if (curEditorState.connectOutput != null)
            {             // Draw the currently drawn connection
                NodeOutput output   = curEditorState.connectOutput;
                Vector2    startPos = output.GetGUIKnob().center;
                Vector2    endPos   = ScreenToGUIPos(mousePos) + curEditorState.zoomPos * curEditorState.zoom;
                Vector2    endDir   = output.GetDirection();
                NodeEditorGUI.DrawConnection(startPos, endDir, endPos, NodeEditorGUI.GetSecondConnectionVector(startPos, endPos, endDir), ConnectionTypes.GetTypeData(output.type).col);
                RepaintClients();
            }
            if (curEditorState.makeTransition != null)
            {             // Draw the currently made transition
                RTEditorGUI.DrawLine(curEditorState.makeTransition.rect.center + curEditorState.zoomPanAdjust,
                                     ScreenToGUIPos(mousePos) + curEditorState.zoomPos * curEditorState.zoom,
                                     Color.grey, null, 3);
                RepaintClients();
            }

            // Push the active node at the bottom of the draw order.
            if (Event.current.type == EventType.Layout && curEditorState.selectedNode != null)
            {
                curNodeCanvas.nodes.Remove(curEditorState.selectedNode);
                curNodeCanvas.nodes.Add(curEditorState.selectedNode);
            }

            // Draw the transitions and connections. Has to be drawn before nodes as transitions originate from node centers
            for (int nodeCnt = 0; nodeCnt < curNodeCanvas.nodes.Count; nodeCnt++)
            {
                Node node = curNodeCanvas.nodes [nodeCnt];
                node.DrawTransitions();
                node.DrawConnections();
            }

            // Draw the nodes
            for (int nodeCnt = 0; nodeCnt < curNodeCanvas.nodes.Count; nodeCnt++)
            {
                Node node = curNodeCanvas.nodes [nodeCnt];
                node.DrawNode();
                if (Event.current.type == EventType.Repaint)
                {
                    node.DrawKnobs();
                }
            }

            // ---- END SCALE ----

            // End scaling group
            GUIScaleUtility.EndScale();

            // Check events with less priority than node GUI controls
            LateEvents();

            curNodeCanvas  = prevNodeCanvas;
            curEditorState = prevEditorState;
        }