Little Registry Cleaner/Common Tools/TreeViewAdv/Tree/NodeControls/NodeCheckBox.cs

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using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing;
using Common_Tools.Properties;
using System.Reflection;
using System.Windows.Forms;
using System.Windows.Forms.VisualStyles;
using System.ComponentModel;

namespace Common_Tools.TreeViewAdv.Tree.NodeControls
{
	public class NodeCheckBox : InteractiveControl
	{
		public const int ImageSize = 13;

		private Bitmap _check;
		private Bitmap _uncheck;
		private Bitmap _unknown;

		#region Properties

		private bool _threeState;
		[DefaultValue(false)]
		public bool ThreeState
		{
			get { return _threeState; }
			set { _threeState = value; }
		}

		#endregion

		public NodeCheckBox()
			: this(string.Empty)
		{
		}

		public NodeCheckBox(string propertyName)
		{
			_check = Resources.check;
			_uncheck = Resources.uncheck;
			_unknown = Resources.unknown;
			DataPropertyName = propertyName;
			LeftMargin = 0;
		}

		public override Size MeasureSize(TreeNodeAdv node, DrawContext context)
		{
			return new Size(ImageSize, ImageSize);
		}

		public override void Draw(TreeNodeAdv node, DrawContext context)
		{
			Rectangle bounds = GetBounds(node, context);
			CheckState state = GetCheckState(node);
			if (Application.RenderWithVisualStyles)
			{
				VisualStyleRenderer renderer;
				if (state == CheckState.Indeterminate)
					renderer = new VisualStyleRenderer(VisualStyleElement.Button.CheckBox.MixedNormal);