Source/AdvTree/Display/NodeConnectorDisplay.cs

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using System;
using System.Drawing;
using System.Drawing.Drawing2D;

namespace DevComponents.AdvTree
{
	namespace Display
	{
		/// <summary>
		/// Base class for drawing node connectors.
		/// </summary>
		public abstract class NodeConnectorDisplay
		{
			//private bool m_RootNode=false;
			//private bool m_DrawRootAllLevels=false;
			//private bool m_EndCap=true;
			//private bool m_DrawConnectorUnderNodes=true;

			/// <summary>
			/// Creates new instance of the object.
			/// </summary>
			public NodeConnectorDisplay()
			{
			}

			/// <summary>
			/// Draws connector line between two nodes.
			/// </summary>
			/// <param name="info">Connector context information.</param>
			public virtual void DrawConnector(ConnectorRendererEventArgs info){}

            ///// <summary>
            ///// Returns the connector starting coordinates.
            ///// </summary>
            ///// <param name="info">Connector display information.</param>
            ///// <returns>Point object.</returns>
            //protected virtual Point GetStartPoint(ConnectorRendererEventArgs info)
            //{
            //    Point p=Point.Empty;

            //    if(info.IsRootNode)
            //    {
            //        //int toMidPoint=info.ToNode.Bounds.Top+info.ToNode.Bounds.Height/2;
            //        //if(info.FromNode.Bounds.Top>toMidPoint)
            //        if(IsAbove(info.FromNode,info.ToNode))
            //            p=new Point(info.FromNode.BoundsRelative.Left+info.FromNode.BoundsRelative.Width/2,info.FromNode.BoundsRelative.Top);
            //            //else if(info.FromNode.Bounds.Bottom<toMidPoint)
            //        else if(IsBelow(info.FromNode,info.ToNode))
            //            p=new Point(info.FromNode.BoundsRelative.Left+info.FromNode.BoundsRelative.Width/2,info.FromNode.BoundsRelative.Bottom-1);
            //    }

            //    if(p.IsEmpty)
            //    {
            //        // To element to the Left
            //        if(this.IsOnLeftSide(info.FromNode,info.ToNode))
            //            p=new Point(info.FromNode.BoundsRelative.Left,info.FromNode.BoundsRelative.Top+info.FromNode.BoundsRelative.Height/2);
            //        else
            //        {
            //            p=new Point(info.FromNode.BoundsRelative.Right,info.FromNode.BoundsRelative.Top+info.FromNode.BoundsRelative.Height/2);
            //            if(info.IsRootNode)
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