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

这里只显示每个文件的开头 60 行。登录后可以解锁完整代码。

微信扫码关注公众号，代码整理好后第一时间通知你。

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

namespace Common_Tools.TreeViewAdv.Tree.NodeControls
{
	internal class NodePlusMinus : NodeControl
	{
		public const int ImageSize = 9;
		public const int Width = 16;
		private Bitmap _plus;
		private Bitmap _minus;

		private VisualStyleRenderer _openedRenderer;
		private VisualStyleRenderer OpenedRenderer
		{
			get
			{
				if (_openedRenderer == null)
					_openedRenderer = new VisualStyleRenderer(VisualStyleElement.TreeView.Glyph.Opened);
				return _openedRenderer;

			}
		}

		private VisualStyleRenderer _closedRenderer;
		private VisualStyleRenderer ClosedRenderer
		{
			get
			{
				if (_closedRenderer == null)
					_closedRenderer = new VisualStyleRenderer(VisualStyleElement.TreeView.Glyph.Closed);
				return _closedRenderer;
			}
		}

		public NodePlusMinus()
		{
			_plus = Resources.plus;
			_minus = Resources.minus;
		}

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

		public override void Draw(TreeNodeAdv node, DrawContext context)
		{
			if (node.CanExpand)
			{
				Rectangle r = context.Bounds;
				int dy = (int)Math.Round((float)(r.Height - ImageSize) / 2);
				if (Application.RenderWithVisualStyles)
				{
					VisualStyleRenderer renderer;