Source/AdvTree/Display/NodeSystemRenderer.cs

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using System;
using System.Drawing;
using DevComponents.DotNetBar;
using DevComponents.DotNetBar.Rendering;

namespace DevComponents.AdvTree.Display
{
	/// <summary>
	/// Represents default system node and cell renderer.
	/// </summary>
	public class NodeSystemRenderer:TreeRenderer
	{
		#region Private Variables
		private NodeExpandEllipseDisplay m_NodeExpandEllipseDisplay=new NodeExpandEllipseDisplay();
		private NodeExpandRectDisplay m_NodeExpandRectDisplay=new NodeExpandRectDisplay();
        private NodeExpandTriangleDisplay m_NodeExpandTriangleDisplay = new NodeExpandTriangleDisplay();
		private NodeExpandImageDisplay m_NodeExpandImageDisplay=new NodeExpandImageDisplay();
		//private NodeCommandDisplay m_NodeCommandDisplay=new NodeCommandDisplay();
		private ElementStyleDisplayInfo m_ElementStyleDisplayInfo=new ElementStyleDisplayInfo();
		private NodeSelectionDisplay m_SelectionDisplay=new NodeSelectionDisplay();
		private LineConnectorDisplay m_LineConnectorDisplay=null;
        private DragDropMarkerDisplay m_DragDropMarkerDisplay = new DragDropMarkerDisplay();
        private ColumnHeaderDisplay m_ColumnHeaderDisplay = new ColumnHeaderDisplay();
        private Office2007CheckBoxItemPainter m_CheckBoxPainter = new Office2007CheckBoxItemPainter();
		#endregion
		
		#region Internal Implementation
		/// <summary>
		/// Returns ElementStyleDisplayInfo class that provides information for ElementStyle rendering.
		/// </summary>
		/// <param name="style">Reference to style.</param>
		/// <param name="g">Reference to graphics object.</param>
		/// <param name="bounds">Style bounds</param>
		/// <returns>New instance of ElementStyleDisplayInfo</returns>
		protected ElementStyleDisplayInfo GetElementStyleDisplayInfo(ElementStyle style, Graphics g, Rectangle bounds)
		{
			m_ElementStyleDisplayInfo.Style=style;
			m_ElementStyleDisplayInfo.Graphics=g;
			m_ElementStyleDisplayInfo.Bounds=bounds;
			return m_ElementStyleDisplayInfo;
		}
		
		private NodeConnectorDisplay GetConnectorDisplay(NodeConnector c)
		{
			NodeConnectorDisplay d=null;
			if(c==null)
				return null;

			switch(c.ConnectorType)
			{
				case eNodeConnectorType.Line:
				{
					if(m_LineConnectorDisplay==null)
						m_LineConnectorDisplay=new LineConnectorDisplay();
					d=m_LineConnectorDisplay;
					break;
				}
			}
			return d;
		}