using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Drawing;
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using System.Linq;
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using System.Text;
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using System.Windows.Forms;
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namespace DPumpHydr.WinFrmUI.WenSkin.Controls
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{
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public class WenTreeViewX : WenTreeView
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{
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public WenTreeViewX() : base()
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{
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base.SetStyle(
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ControlStyles.DoubleBuffer |
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ControlStyles.OptimizedDoubleBuffer |
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ControlStyles.AllPaintingInWmPaint |
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ControlStyles.ResizeRedraw |
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ControlStyles.SupportsTransparentBackColor, true);
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base.UpdateStyles();
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this.DrawMode = TreeViewDrawMode.OwnerDrawAll;
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this.FullRowSelect = true;
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this.ItemHeight = 30;
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this.BackColor = Color.FromArgb(37, 37, 38);
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this.ForeColor = Color.White;
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}
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#region 私有属性
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public StringFormat stringConters = new StringFormat(StringFormatFlags.NoClip | StringFormatFlags.NoWrap) { LineAlignment = StringAlignment.Center, };
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#endregion
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#region 公有属性
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[Category("Wen"), Description("关闭时候图标")]
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[DefaultValue(null)]
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public Image ImageClose { get; set; } = Properties.Resources.Tright;
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[Category("Wen"), Description("打开时候图标")]
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[DefaultValue(typeof(Image),"Properties.Resources.Tdown")]
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public Image ImageOpen { get; set; } = Properties.Resources.Tdown;
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[Category("Wen"), Description("打开关闭按钮图标大小")]
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[DefaultValue(typeof(Size), "16, 16")]
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public Size ButtonImageSize { get; set; } = new Size(16, 16);
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[Category("Wen"), Description("鼠标移动的颜色")]
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[DefaultValue(typeof(Color), "62, 62, 64")]
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public Color MouseMoveColor { get; set; } = Color.FromArgb(62, 62, 64);
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[Category("Wen"), Description("选中颜色")]
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[DefaultValue(typeof(Color), "63, 63, 70")]
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public Color SelectedColor { get; set; } = Color.FromArgb(63, 63, 70);
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[Category("Wen"), Description("图标尺寸")]
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[DefaultValue(typeof(Size), "16, 16")]
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public Size ImageSize { get; set; } = new Size(16, 16);
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#endregion
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protected override void OnDrawNode(DrawTreeNodeEventArgs e)
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{
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if (e.Bounds == new Rectangle(0, 0, 0, 0))
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return;
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Graphics g = e.Graphics.SetGDIHigh();
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//Rectangle rec = new Rectangle(0, e.Bounds.Y, this.Width, ItemHeight - 1);
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Rectangle rec = e.Bounds;
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rec.Inflate(-1, -1);
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TreeNode node = e.Node;
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//画背景
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if (node.IsSelected)
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{
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g.FillRectangle(new SolidBrush(SelectedColor), rec);
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}
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else if (node == MouseTreeNode)
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{
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g.FillRectangle(new SolidBrush(MouseMoveColor), rec);
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}
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else
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{
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g.FillRectangle(new SolidBrush(node.BackColor), rec);
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}
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Console.WriteLine(e.Bounds);
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//画节点
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Rectangle recLevel = new Rectangle(rec.X, rec.Y, (node.Level + 1) * 20, rec.Height);
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//设置展开关闭图标位置
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Rectangle recbuttonImageSize =
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new Rectangle(recLevel.X + recLevel.Width - ButtonImageSize.Width,
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recLevel.Y + (ItemHeight - ButtonImageSize.Height) / 2,
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ButtonImageSize.Width, ButtonImageSize.Height);
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if (node.Nodes.Count != 0)
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{
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if (node.IsExpanded)
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g.DrawImage(ImageOpen, recbuttonImageSize);
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else
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g.DrawImage(ImageClose, recbuttonImageSize);
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}
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//文字边框
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Rectangle recString = new Rectangle(rec.X + recLevel.Width, rec.Y, rec.Width , rec.Height);
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//画图标
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if (this.ImageList != null && node.ImageIndex >= 0)
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{
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//设置图标区域
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Rectangle recImage =
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new Rectangle(new Point(rec.X + recLevel.Width,
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recLevel.Y + (ItemHeight - ImageSize.Height) / 2),
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ImageSize);
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g.DrawImage(ImageList.Images[node.ImageIndex], recImage);
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recString = new Rectangle(recImage.X + recImage.Width, rec.Y, rec.Width - recImage.Width - recLevel.Width, rec.Height);
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}
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//画文字
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g.DrawString(node.Text, this.Font, new SolidBrush(this.ForeColor), recString, stringConters);
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}
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//刷新节点
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private void InvalidateTreeNode(TreeNode node)
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{
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if (node == null)
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return;
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Rectangle rec = new Rectangle(0, node.Bounds.Y, this.Width, ItemHeight + 1);
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this.Invalidate(rec);
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}
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#region 鼠标移动效果
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private TreeNode MouseTreeNode = null;
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protected override void OnMouseLeave(EventArgs e)
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{
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base.OnMouseLeave(e);
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if (MouseTreeNode != null)
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InvalidateTreeNode(MouseTreeNode);
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MouseTreeNode = null;
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}
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protected override void OnMouseMove(MouseEventArgs e)
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{
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base.OnMouseMove(e);
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TreeNode node = this.GetNodeAt(e.Location);
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if (node != MouseTreeNode)
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{
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if (MouseTreeNode != null)
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InvalidateTreeNode(MouseTreeNode);
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InvalidateTreeNode(node);
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MouseTreeNode = node;
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}
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}
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#endregion
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#region 鼠标点击效果
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//protected override void OnMouseClick(MouseEventArgs e)
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//{
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// base.OnMouseClick(e);
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// TreeNode node = this.GetNodeAt(e.Location);
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// this.SelectedNode = node;
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//}
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#endregion
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#region 鼠标双击
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//protected override void OnMouseDoubleClick(MouseEventArgs e)
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//{
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// base.OnMouseDoubleClick(e);
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// TreeNode node = this.GetNodeAt(e.Location);
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// if (node.Nodes.Count == 0 || node.Bounds.Contains(e.Location))
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// return;
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// //if (node.IsExpanded)
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// // node.Expand();
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// //else
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// node.Toggle();
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//}
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#endregion
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}
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}
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