1219 lines
40 KiB
C#
1219 lines
40 KiB
C#
/******************************************************************************
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* SunnyUI 开源控件库、工具类库、扩展类库、多页面开发框架。
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* CopyRight (C) 2012-2023 ShenYongHua(沈永华).
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* QQ群：56829229 QQ：17612584 EMail：SunnyUI@QQ.Com
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*
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* Blog: https://www.cnblogs.com/yhuse
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* Gitee: https://gitee.com/yhuse/SunnyUI
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* GitHub: https://github.com/yhuse/SunnyUI
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*
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* SunnyUI.dll can be used for free under the GPL-3.0 license.
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* If you use this code, please keep this note.
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* 如果您使用此代码，请保留此说明。
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******************************************************************************
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* 文件名称: UINavMenu.cs
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* 文件说明: 导航菜单
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* 当前版本: V3.1
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* 创建日期: 2020-01-01
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*
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* 2020-01-01: V2.2.0 增加文件说明
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* 2020-07-01: V2.2.6 解决引发事件所有结点重绘导致闪烁；解决滚轮失效问题。
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* 2020-03-12: V3.0.2 增加设置二级菜单底色
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* 2021-06-14: V3.0.4 增加右侧图标
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* 2021-08-07: V3.0.5 显示/隐藏子节点提示箭头
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* 2021-08-27: V3.0.6 增加自定义TipsText显示的颜色
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* 2021-12-13: V3.0.9 选中项可设置背景色渐变
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* 2022-01-02: V3.0.9 滚动条可设置颜色
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* 2022-03-19: V3.1.1 重构主题配色
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* 2022-03-24: V3.1.1 修复TipsText显示位置
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* 2022-04-14: V3.1.3 重构扩展函数
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* 2022-06-23: V3.2.0 绘制节点字体图标增加偏移SymbolOffset
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* 2022-08-19: V3.2.3 修复选中节点右侧图标前景色
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* 2022-11-03: V3.2.6 增加了可设置垂直滚动条宽度的属性
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* 2022-11-03: V3.2.6 重写了节点右侧图标的绘制
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* 2023-02-02: V3.3.1 修复了鼠标离开事件
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* 2023-02-10: V3.3.2 有子节点时，鼠标左键点击父级点展开/收缩，右键选中
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* 2023-05-12: V3.3.6 重构DrawString函数
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* 2023-05-16: V3.3.6 重构DrawFontImage函数
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* 2023-05-29: V3.3.7 增加PageGuid相关扩展方法
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******************************************************************************/
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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.Drawing.Drawing2D;
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using System.Windows.Forms;
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namespace Sunny.UI
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{
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[DefaultEvent("MenuItemClick")]
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[DefaultProperty("Nodes")]
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public sealed class UINavMenu : TreeView, IStyleInterface, IZoomScale
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{
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public delegate void OnMenuItemClick(TreeNode node, NavMenuItem item, int pageIndex);
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public event OnMenuItemClick MenuItemClick;
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private readonly UIScrollBar Bar = new UIScrollBar();
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public UINavMenu()
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{
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SetStyle(ControlStyles.DoubleBuffer |
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ControlStyles.AllPaintingInWmPaint |
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ControlStyles.OptimizedDoubleBuffer, true);
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UpdateStyles();
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BorderStyle = BorderStyle.None;
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//HideSelection = false;
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DrawMode = TreeViewDrawMode.OwnerDrawAll;
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FullRowSelect = true;
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ShowLines = false;
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//ShowPlusMinus = false;
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//ShowRootLines = false;
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DoubleBuffered = true;
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base.Font = UIStyles.Font();
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//CheckBoxes = false;
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ItemHeight = 50;
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BackColor = Color.FromArgb(56, 56, 56);
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Bar.ValueChanged += Bar_ValueChanged;
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Bar.Dock = DockStyle.Right;
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Bar.Visible = false;
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Bar.Style = UIStyle.Custom;
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Bar.StyleCustomMode = true;
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Bar.FillColor = fillColor;
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Bar.ForeColor = Color.Silver;
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Bar.HoverColor = Color.Silver;
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Bar.PressColor = Color.Silver;
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Bar.ZoomScaleDisabled = true;
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Controls.Add(Bar);
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Version = UIGlobal.Version;
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SetScrollInfo();
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selectedForeColor = UIStyles.Blue.NavMenuMenuSelectedColor;
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selectedHighColor = UIStyles.Blue.NavMenuMenuSelectedColor;
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}
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private int scrollBarWidth = 0;
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[DefaultValue(0), Category("SunnyUI"), Description("垂直滚动条宽度，最小为原生滚动条宽度")]
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public int ScrollBarWidth
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{
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get => scrollBarWidth;
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set
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{
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scrollBarWidth = value;
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SetScrollInfo();
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}
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}
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private int scrollBarHandleWidth = 6;
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[DefaultValue(6), Category("SunnyUI"), Description("垂直滚动条滑块宽度，最小为原生滚动条宽度")]
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public int ScrollBarHandleWidth
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{
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get => scrollBarHandleWidth;
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set
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{
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scrollBarHandleWidth = value;
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if (Bar != null) Bar.FillWidth = value;
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}
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}
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/// <summary>
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/// 禁止控件跟随窗体缩放
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/// </summary>
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[DefaultValue(false), Category("SunnyUI"), Description("禁止控件跟随窗体缩放")]
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public bool ZoomScaleDisabled { get; set; }
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/// <summary>
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/// 控件缩放前在其容器里的位置
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/// </summary>
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[Browsable(false), DefaultValue(typeof(Rectangle), "0, 0, 0, 0")]
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public Rectangle ZoomScaleRect { get; set; }
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/// <summary>
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/// 设置控件缩放比例
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/// </summary>
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/// <param name="scale">缩放比例</param>
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public void SetZoomScale(float scale)
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{
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}
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[Description("滚动条填充颜色"), Category("SunnyUI")]
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[DefaultValue(typeof(Color), "56, 56, 56")]
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public Color ScrollFillColor
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{
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get => Bar.FillColor;
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set
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{
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menuStyle = UIMenuStyle.Custom;
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Bar.FillColor = value;
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Invalidate();
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}
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}
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[Description("滚动条填充颜色"), Category("SunnyUI")]
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[DefaultValue(typeof(Color), "Silver")]
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public Color ScrollBarColor
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{
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get => Bar.ForeColor;
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set
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{
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menuStyle = UIMenuStyle.Custom;
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Bar.ForeColor = value;
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Invalidate();
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}
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}
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[Description("滚动条移上填充颜色"), Category("SunnyUI")]
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[DefaultValue(typeof(Color), "Silver")]
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public Color ScrollBarHoverColor
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{
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get => Bar.HoverColor;
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set
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{
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menuStyle = UIMenuStyle.Custom;
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Bar.HoverColor = value;
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Invalidate();
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}
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}
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[Description("滚动条按下填充颜色"), Category("SunnyUI")]
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[DefaultValue(typeof(Color), "Silver")]
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public Color ScrollBarPressColor
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{
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get => Bar.PressColor;
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set
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{
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menuStyle = UIMenuStyle.Custom;
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Bar.PressColor = value;
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Invalidate();
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}
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}
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private float DefaultFontSize = -1;
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public void SetDPIScale()
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{
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if (!UIDPIScale.NeedSetDPIFont()) return;
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if (DefaultFontSize < 0) DefaultFontSize = this.Font.Size;
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this.SetDPIScaleFont(DefaultFontSize);
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}
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[DefaultValue(false)]
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[Description("只显示一个打开的节点"), Category("SunnyUI")]
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public bool ShowOneNode { get; set; }
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private bool showItemsArrow = true;
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[DefaultValue(true)]
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[Description("显示子节点提示箭头"), Category("SunnyUI")]
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public bool ShowItemsArrow
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{
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get => showItemsArrow;
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set
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{
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showItemsArrow = value;
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Invalidate();
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}
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}
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/// <summary>
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/// Tag字符串
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/// </summary>
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[DefaultValue(null)]
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[Description("获取或设置包含有关控件的数据的对象字符串"), Category("SunnyUI")]
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public string TagString { get; set; }
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public void ClearAll()
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{
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Nodes.Clear();
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MenuHelper.Clear();
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}
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private Color backColor = Color.FromArgb(56, 56, 56);
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[DefaultValue(typeof(Color), "56, 56, 56")]
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[Description("背景颜色"), Category("SunnyUI")]
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public override Color BackColor
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{
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get => backColor;
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set
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{
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if (backColor != value)
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{
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backColor = value;
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menuStyle = UIMenuStyle.Custom;
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Invalidate();
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}
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}
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}
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private Color fillColor = Color.FromArgb(56, 56, 56);
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/// <summary>
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/// 填充颜色，当值为背景色或透明色或空值则不填充
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/// </summary>
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[Description("填充颜色"), Category("SunnyUI")]
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[DefaultValue(typeof(Color), "56, 56, 56")]
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public Color FillColor
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{
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get => fillColor;
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set
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{
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if (fillColor != value)
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{
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fillColor = value;
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menuStyle = UIMenuStyle.Custom;
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Invalidate();
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}
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}
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}
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private Color foreColor = Color.Silver;
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/// <summary>
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/// 填充颜色，当值为背景色或透明色或空值则不填充
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/// </summary>
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[Description("字体颜色"), Category("SunnyUI")]
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[DefaultValue(typeof(Color), "Silver")]
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public override Color ForeColor
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{
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get => foreColor;
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set
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{
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if (foreColor != value)
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{
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foreColor = value;
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menuStyle = UIMenuStyle.Custom;
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Invalidate();
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}
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}
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}
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private void Bar_ValueChanged(object sender, EventArgs e)
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{
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ScrollBarInfo.SetScrollValue(Handle, Bar.Value);
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}
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/// <summary>
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/// 自定义主题风格
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/// </summary>
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[DefaultValue(false)]
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[Description("获取或设置可以自定义主题风格"), Category("SunnyUI")]
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public bool StyleCustomMode { get; set; }
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[DefaultValue(null)]
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[Description("关联的TabControl"), Category("SunnyUI")]
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public UITabControl TabControl { get; set; }
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private Color selectedColor = Color.FromArgb(36, 36, 36);
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private bool showTips;
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[Description("是否显示角标"), Category("SunnyUI")]
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[DefaultValue(false)]
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public bool ShowTips
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{
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get => showTips;
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set
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{
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if (showTips != value)
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{
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showTips = value;
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Invalidate();
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}
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}
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}
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private Font tipsFont = UIStyles.SubFont();
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[Description("角标文字字体"), Category("SunnyUI")]
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[DefaultValue(typeof(Font), "宋体, 9pt")]
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public Font TipsFont
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{
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get => tipsFont;
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set
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{
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if (!tipsFont.Equals(value))
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{
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tipsFont = value;
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Invalidate();
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}
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}
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}
|
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[DefaultValue(typeof(Color), "36, 36, 36")]
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[Description("选中节点颜色"), Category("SunnyUI")]
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public Color SelectedColor
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{
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get => selectedColor;
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set
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{
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if (selectedColor != value)
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{
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selectedColor = value;
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menuStyle = UIMenuStyle.Custom;
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Invalidate();
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}
|
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}
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||
}
|
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private bool fillColorGradient;
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[Description("填充颜色渐变"), Category("SunnyUI")]
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[DefaultValue(false)]
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public bool SelectedColorGradient
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{
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get => fillColorGradient;
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set
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{
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if (fillColorGradient != value)
|
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{
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fillColorGradient = value;
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||
Invalidate();
|
||
}
|
||
}
|
||
}
|
||
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/// <summary>
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||
/// 设置填充颜色
|
||
/// </summary>
|
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/// <param name="value">颜色</param>
|
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private void SetFillColor2(Color value)
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{
|
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if (selectedColor2 != value)
|
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{
|
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selectedColor2 = value;
|
||
menuStyle = UIMenuStyle.Custom;
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||
Invalidate();
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||
}
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||
}
|
||
|
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/// <summary>
|
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/// 填充颜色
|
||
/// </summary>
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private Color selectedColor2 = Color.FromArgb(36, 36, 36);
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||
|
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/// <summary>
|
||
/// 填充颜色，当值为背景色或透明色或空值则不填充
|
||
/// </summary>
|
||
[Description("填充颜色"), Category("SunnyUI")]
|
||
[DefaultValue(typeof(Color), "36, 36, 36")]
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public Color SelectedColor2
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{
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get => selectedColor2;
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set => SetFillColor2(value);
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}
|
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|
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private Color selectedHighColor = UIColor.Blue;
|
||
|
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/// <summary>
|
||
/// 边框颜色
|
||
/// </summary>
|
||
[Description("选中节点高亮颜色"), Category("SunnyUI")]
|
||
[DefaultValue(typeof(Color), "80, 160, 255")]
|
||
public Color SelectedHighColor
|
||
|
||
{
|
||
get => selectedHighColor;
|
||
set
|
||
{
|
||
selectedHighColor = value;
|
||
SetStyleCustom();
|
||
}
|
||
}
|
||
|
||
private Color hoverColor = Color.FromArgb(76, 76, 76);
|
||
|
||
[DefaultValue(typeof(Color), "76, 76, 76")]
|
||
[Description("鼠标移上颜色"), Category("SunnyUI")]
|
||
public Color HoverColor
|
||
{
|
||
get => hoverColor;
|
||
set
|
||
{
|
||
if (hoverColor != value)
|
||
{
|
||
hoverColor = value;
|
||
menuStyle = UIMenuStyle.Custom;
|
||
}
|
||
}
|
||
}
|
||
|
||
private UIStyle _style = UIStyle.Blue;
|
||
|
||
/// <summary>
|
||
/// 主题样式
|
||
/// </summary>
|
||
[DefaultValue(UIStyle.Blue), Description("主题样式"), Category("SunnyUI")]
|
||
public UIStyle Style
|
||
{
|
||
get => _style;
|
||
set => SetStyle(value);
|
||
}
|
||
|
||
public void SetStyle(UIStyle style)
|
||
{
|
||
if (!style.IsCustom())
|
||
{
|
||
SetStyleColor(style.Colors());
|
||
Invalidate();
|
||
}
|
||
|
||
_style = style;
|
||
}
|
||
|
||
public void SetStyleColor(UIBaseStyle uiColor)
|
||
{
|
||
selectedForeColor = uiColor.NavMenuMenuSelectedColor;
|
||
selectedHighColor = uiColor.NavMenuMenuSelectedColor;
|
||
}
|
||
|
||
private UIMenuStyle menuStyle = UIMenuStyle.Black;
|
||
|
||
[DefaultValue(UIMenuStyle.Black)]
|
||
[Description("导航菜单主题风格"), Category("SunnyUI")]
|
||
public UIMenuStyle MenuStyle
|
||
{
|
||
get => menuStyle;
|
||
set
|
||
{
|
||
if (value != UIMenuStyle.Custom)
|
||
{
|
||
SetMenuStyle(UIStyles.MenuColors[value]);
|
||
}
|
||
|
||
menuStyle = value;
|
||
}
|
||
}
|
||
|
||
private void SetMenuStyle(UIMenuColor uiColor)
|
||
{
|
||
BackColor = uiColor.BackColor;
|
||
fillColor = uiColor.BackColor;
|
||
selectedColor = uiColor.SelectedColor;
|
||
selectedColor2 = uiColor.SelectedColor2;
|
||
foreColor = uiColor.UnSelectedForeColor;
|
||
hoverColor = uiColor.HoverColor;
|
||
secondBackColor = uiColor.SecondBackColor;
|
||
|
||
if (Bar != null)
|
||
{
|
||
Bar.FillColor = uiColor.BackColor;
|
||
Bar.ForeColor = uiColor.UnSelectedForeColor;
|
||
Bar.HoverColor = uiColor.UnSelectedForeColor;
|
||
Bar.PressColor = uiColor.UnSelectedForeColor;
|
||
}
|
||
|
||
Invalidate();
|
||
}
|
||
|
||
private void SetStyleCustom(bool needRefresh = true)
|
||
{
|
||
_style = UIStyle.Custom;
|
||
if (needRefresh) Invalidate();
|
||
}
|
||
|
||
private Color selectedForeColor = UIColor.Blue;
|
||
|
||
[DefaultValue(typeof(Color), "80, 160, 255")]
|
||
[Description("选中节点字体颜色"), Category("SunnyUI")]
|
||
public Color SelectedForeColor
|
||
{
|
||
get => selectedForeColor;
|
||
set
|
||
{
|
||
if (selectedForeColor != value)
|
||
{
|
||
selectedForeColor = value;
|
||
SetStyleCustom();
|
||
}
|
||
}
|
||
}
|
||
|
||
private bool ScrollBarVisible;
|
||
|
||
private TreeNode CurrentNode;
|
||
|
||
/// <summary>
|
||
/// 重载鼠标移动事件
|
||
/// </summary>
|
||
/// <param name="e">鼠标参数</param>
|
||
protected override void OnMouseMove(MouseEventArgs e)
|
||
{
|
||
base.OnMouseMove(e);
|
||
TreeNode node = GetNodeAt(e.Location);
|
||
if (node == null || CurrentNode == node)
|
||
{
|
||
return;
|
||
}
|
||
|
||
using Graphics g = CreateGraphics();
|
||
if (CurrentNode != null && CurrentNode != SelectedNode)
|
||
{
|
||
ClearCurrentNode(g);
|
||
}
|
||
|
||
if (node != SelectedNode)
|
||
{
|
||
CurrentNode = node;
|
||
OnDrawNode(new DrawTreeNodeEventArgs(g, CurrentNode, new Rectangle(0, CurrentNode.Bounds.Y, Width, CurrentNode.Bounds.Height), TreeNodeStates.Hot));
|
||
}
|
||
}
|
||
|
||
private void ClearCurrentNode(Graphics g)
|
||
{
|
||
if (CurrentNode != null && CurrentNode != SelectedNode)
|
||
{
|
||
OnDrawNode(new DrawTreeNodeEventArgs(g, CurrentNode, new Rectangle(0, CurrentNode.Bounds.Y, Width, CurrentNode.Bounds.Height), TreeNodeStates.Default));
|
||
CurrentNode = null;
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 重载鼠标离开事件
|
||
/// </summary>
|
||
/// <param name="e">鼠标参数</param>
|
||
protected override void OnMouseLeave(EventArgs e)
|
||
{
|
||
using Graphics g = CreateGraphics();
|
||
ClearCurrentNode(g);
|
||
base.OnMouseLeave(e);
|
||
}
|
||
|
||
private bool checkBoxes;
|
||
|
||
[Browsable(false)]
|
||
public new bool CheckBoxes
|
||
{
|
||
get => checkBoxes;
|
||
set => checkBoxes = false;
|
||
}
|
||
|
||
private bool showSecondBackColor;
|
||
|
||
[DefaultValue(false)]
|
||
[Description("显示二级节点背景颜色"), Category("SunnyUI")]
|
||
public bool ShowSecondBackColor
|
||
{
|
||
get => showSecondBackColor;
|
||
set
|
||
{
|
||
if (ShowSecondBackColor != value)
|
||
{
|
||
showSecondBackColor = value;
|
||
Invalidate();
|
||
}
|
||
}
|
||
}
|
||
|
||
private Color secondBackColor = Color.FromArgb(66, 66, 66);
|
||
|
||
[DefaultValue(typeof(Color), "66, 66, 66")]
|
||
[Description("二级节点背景颜色"), Category("SunnyUI")]
|
||
public Color SecondBackColor
|
||
{
|
||
get => secondBackColor;
|
||
set
|
||
{
|
||
if (secondBackColor != value)
|
||
{
|
||
secondBackColor = value;
|
||
Invalidate();
|
||
}
|
||
}
|
||
}
|
||
|
||
protected override void OnDrawNode(DrawTreeNodeEventArgs e)
|
||
{
|
||
if (BorderStyle != BorderStyle.None)
|
||
{
|
||
BorderStyle = BorderStyle.None;
|
||
}
|
||
|
||
SetScrollInfo();
|
||
CheckBoxes = false;
|
||
|
||
if (e.Node == null || (e.Node.Bounds.Width <= 0 && e.Node.Bounds.Height <= 0 && e.Node.Bounds.X <= 0 && e.Node.Bounds.Y <= 0))
|
||
{
|
||
e.DrawDefault = true;
|
||
}
|
||
else
|
||
{
|
||
int drawLeft = e.Node.Level * 16 + 16 + 4;
|
||
int imageLeft = drawLeft;
|
||
bool haveImage = false;
|
||
|
||
if (MenuHelper.GetSymbol(e.Node) > 0)
|
||
{
|
||
haveImage = true;
|
||
drawLeft += MenuHelper.GetSymbolSize(e.Node) + 6;
|
||
}
|
||
else
|
||
{
|
||
if (ImageList != null && ImageList.Images.Count > 0 && e.Node.ImageIndex >= 0 && e.Node.ImageIndex < ImageList.Images.Count)
|
||
{
|
||
haveImage = true;
|
||
drawLeft += ImageList.ImageSize.Width + 6;
|
||
}
|
||
}
|
||
|
||
if (e.Node == SelectedNode)
|
||
{
|
||
if (SelectedColorGradient)
|
||
{
|
||
using LinearGradientBrush br = new LinearGradientBrush(new Point(0, 0), new Point(0, e.Node.Bounds.Height), SelectedColor, SelectedColor2);
|
||
br.GammaCorrection = true;
|
||
e.Graphics.FillRectangle(br, new Rectangle(new Point(0, e.Node.Bounds.Y), new Size(Width, e.Node.Bounds.Height)));
|
||
}
|
||
else
|
||
{
|
||
e.Graphics.FillRectangle(SelectedColor, new Rectangle(new Point(0, e.Node.Bounds.Y), new Size(Width, e.Node.Bounds.Height)));
|
||
}
|
||
|
||
e.Graphics.DrawString(e.Node.Text, Font, SelectedForeColor, new Rectangle(drawLeft, e.Bounds.Y, e.Bounds.Width - drawLeft, ItemHeight), ContentAlignment.MiddleLeft);
|
||
e.Graphics.FillRectangle(SelectedHighColor, new Rectangle(0, e.Bounds.Y, 4, e.Bounds.Height));
|
||
}
|
||
else if (e.Node == CurrentNode && (e.State & TreeNodeStates.Hot) != 0)
|
||
{
|
||
e.Graphics.FillRectangle(HoverColor, new Rectangle(new Point(0, e.Node.Bounds.Y), new Size(Width, e.Node.Bounds.Height)));
|
||
e.Graphics.DrawString(e.Node.Text, Font, ForeColor, new Rectangle(drawLeft, e.Bounds.Y, e.Bounds.Width - drawLeft, ItemHeight), ContentAlignment.MiddleLeft);
|
||
}
|
||
else
|
||
{
|
||
Color color = fillColor;
|
||
if (showSecondBackColor && e.Node.Level > 0)
|
||
{
|
||
color = SecondBackColor;
|
||
}
|
||
|
||
e.Graphics.FillRectangle(color, new Rectangle(new Point(0, e.Node.Bounds.Y), new Size(Width, e.Node.Bounds.Height)));
|
||
e.Graphics.DrawString(e.Node.Text, Font, ForeColor, new Rectangle(drawLeft, e.Bounds.Y, e.Bounds.Width - drawLeft, ItemHeight), ContentAlignment.MiddleLeft);
|
||
}
|
||
|
||
//画右侧图标
|
||
Color rightSymbolColor = ForeColor;
|
||
if (e.Node == SelectedNode) rightSymbolColor = SelectedForeColor;
|
||
if (TreeNodeSymbols.ContainsKey(e.Node) && TreeNodeSymbols[e.Node].Count > 0)
|
||
{
|
||
int size = e.Node.Nodes.Count > 0 ? 24 : 0;
|
||
int left = Width - size - 6;
|
||
if (Bar.Visible) left -= Bar.Width;
|
||
|
||
int firstLeft = left - TreeNodeSymbols[e.Node].Count * 30;
|
||
for (int i = 0; i < TreeNodeSymbols[e.Node].Count; i++)
|
||
{
|
||
e.Graphics.DrawFontImage(TreeNodeSymbols[e.Node][i], 24, rightSymbolColor, new Rectangle(firstLeft + i * 30, e.Bounds.Top, 30, e.Bounds.Height));
|
||
}
|
||
}
|
||
|
||
//画图片
|
||
if (haveImage)
|
||
{
|
||
if (MenuHelper.GetSymbol(e.Node) > 0)
|
||
{
|
||
Color color = e.Node == SelectedNode ? SelectedForeColor : ForeColor;
|
||
Point offset = MenuHelper.GetSymbolOffset(e.Node);
|
||
e.Graphics.DrawFontImage(MenuHelper.GetSymbol(e.Node), MenuHelper.GetSymbolSize(e.Node), color, new Rectangle(imageLeft, e.Bounds.Y, MenuHelper.GetSymbolSize(e.Node), e.Bounds.Height), offset.X, offset.Y, MenuHelper.GetSymbolRotate(e.Node));
|
||
}
|
||
else
|
||
{
|
||
if (e.Node == SelectedNode && e.Node.SelectedImageIndex >= 0 && e.Node.SelectedImageIndex < ImageList.Images.Count)
|
||
e.Graphics.DrawImage(ImageList.Images[e.Node.SelectedImageIndex], imageLeft, e.Bounds.Y + (e.Bounds.Height - ImageList.ImageSize.Height) / 2);
|
||
else
|
||
e.Graphics.DrawImage(ImageList.Images[e.Node.ImageIndex], imageLeft, e.Bounds.Y + (e.Bounds.Height - ImageList.ImageSize.Height) / 2);
|
||
}
|
||
}
|
||
|
||
//显示右侧下拉箭头
|
||
if (ShowItemsArrow && e.Node.Nodes.Count > 0)
|
||
{
|
||
int size = 24;
|
||
int left = Width - size - 6;
|
||
if (Bar.Visible) left -= Bar.Width;
|
||
|
||
SizeF sf = e.Graphics.GetFontImageSize(61702, 24);
|
||
Rectangle rect = new Rectangle((int)(left + sf.Width / 2) - 12, e.Bounds.Y, 24, e.Bounds.Height);
|
||
e.Graphics.DrawFontImage(e.Node.IsExpanded ? 61702 : 61703, 24, ForeColor, rect);
|
||
}
|
||
|
||
//显示Tips圆圈
|
||
if (ShowTips && MenuHelper.GetTipsText(e.Node).IsValid())
|
||
{
|
||
using var TempFont = TipsFont.DPIScaleFont(TipsFont.Size);
|
||
Size tipsSize = TextRenderer.MeasureText(MenuHelper.GetTipsText(e.Node), TempFont);
|
||
int sfMax = Math.Max(tipsSize.Width, tipsSize.Height);
|
||
int tipsLeft = Width - sfMax - 16;
|
||
if (e.Node.Nodes.Count > 0) tipsLeft -= 24;
|
||
if (Bar.Visible) tipsLeft -= Bar.Width;
|
||
if (TreeNodeSymbols.ContainsKey(e.Node)) tipsLeft -= TreeNodeSymbols[e.Node].Count * 30;
|
||
int tipsTop = e.Bounds.Y + (ItemHeight - sfMax) / 2;
|
||
|
||
if (MenuHelper[e.Node] != null)
|
||
{
|
||
if (MenuHelper[e.Node].TipsCustom)
|
||
{
|
||
e.Graphics.FillEllipse(MenuHelper[e.Node].TipsBackColor, tipsLeft - 1, tipsTop, sfMax, sfMax);
|
||
e.Graphics.DrawString(MenuHelper.GetTipsText(e.Node), TempFont, MenuHelper[e.Node].TipsForeColor, new Rectangle(tipsLeft, tipsTop, sfMax, sfMax), ContentAlignment.MiddleCenter);
|
||
}
|
||
else
|
||
{
|
||
e.Graphics.FillEllipse(TipsColor, tipsLeft - 1, tipsTop, sfMax, sfMax);
|
||
e.Graphics.DrawString(MenuHelper.GetTipsText(e.Node), TempFont, TipsForeColor, new Rectangle(tipsLeft, tipsTop, sfMax, sfMax), ContentAlignment.MiddleCenter);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
base.OnDrawNode(e);
|
||
}
|
||
|
||
private Color tipsColor = Color.Red;
|
||
|
||
[DefaultValue(typeof(Color), "Red"), Category("SunnyUI"), Description("节点提示圆点背景颜色")]
|
||
public Color TipsColor
|
||
{
|
||
get => tipsColor;
|
||
set
|
||
{
|
||
tipsColor = value;
|
||
Invalidate();
|
||
}
|
||
}
|
||
|
||
private Color tipsForeColor = Color.White;
|
||
|
||
[DefaultValue(typeof(Color), "White"), Category("SunnyUI"), Description("节点提示圆点文字颜色")]
|
||
public Color TipsForeColor
|
||
{
|
||
get => tipsForeColor;
|
||
set
|
||
{
|
||
tipsForeColor = value;
|
||
Invalidate();
|
||
}
|
||
}
|
||
|
||
[Description("展开节点后选中第一个子节点"), Category("SunnyUI"), DefaultValue(true)]
|
||
public bool ExpandSelectFirst { get; set; } = true;
|
||
|
||
public string Version { get; }
|
||
|
||
protected override void OnNodeMouseClick(TreeNodeMouseClickEventArgs e)
|
||
{
|
||
base.OnNodeMouseClick(e);
|
||
if (e.Node == null) return;
|
||
|
||
int size = e.Node.Nodes.Count > 0 ? 24 : 0;
|
||
int left = Width - size - 6;
|
||
if (Bar.Visible) left -= Bar.Width;
|
||
|
||
int firstLeft = 0;
|
||
if (TreeNodeSymbols.ContainsKey(e.Node))
|
||
firstLeft = left - TreeNodeSymbols[e.Node].Count * 30;
|
||
|
||
if (TreeNodeSymbols.ContainsKey(e.Node) && TreeNodeSymbols[e.Node].Count > 0 && e.X >= firstLeft && e.X < firstLeft + TreeNodeSymbols[e.Node].Count * 30)
|
||
{
|
||
int idx = (e.X - firstLeft) / 30;
|
||
if (idx >= 0 && idx < TreeNodeSymbols[e.Node].Count)
|
||
{
|
||
NodeRightSymbolClick?.Invoke(this, e.Node, idx, TreeNodeSymbols[e.Node][idx]);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if (e.Node.Nodes.Count > 0)
|
||
{
|
||
if (e.Button == MouseButtons.Left)
|
||
{
|
||
if (e.Node.IsExpanded)
|
||
{
|
||
e.Node.Collapse();
|
||
}
|
||
else
|
||
{
|
||
e.Node.Expand();
|
||
}
|
||
|
||
if (SelectedNode != null && SelectedNode == e.Node && e.Node.IsExpanded && ExpandSelectFirst && e.Node.Nodes.Count > 0)
|
||
{
|
||
SelectedNode = e.Node.Nodes[0];
|
||
}
|
||
else
|
||
{
|
||
SelectedNode = e.Node;
|
||
}
|
||
}
|
||
|
||
if (e.Button == MouseButtons.Right)
|
||
{
|
||
SelectedNode = e.Node;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
SelectedNode = e.Node;
|
||
}
|
||
|
||
ShowSelectedNode();
|
||
}
|
||
}
|
||
|
||
public void SelectFirst()
|
||
{
|
||
if (Nodes.Count > 0)
|
||
{
|
||
if (Nodes[0].Nodes.Count > 0 && ExpandSelectFirst)
|
||
{
|
||
Nodes[0].Expand();
|
||
SelectedNode = Nodes[0].Nodes[0];
|
||
}
|
||
else
|
||
{
|
||
SelectedNode = Nodes[0];
|
||
}
|
||
|
||
Nodes[0].EnsureVisible();
|
||
}
|
||
|
||
ShowSelectedNode();
|
||
}
|
||
|
||
private void ShowSelectedNode()
|
||
{
|
||
NavMenuItem item = MenuHelper[SelectedNode];
|
||
if (item != null)
|
||
{
|
||
if (item.PageGuid != Guid.Empty)
|
||
{
|
||
TabControl?.SelectPage(item.PageGuid);
|
||
}
|
||
else
|
||
{
|
||
if (item.PageIndex >= 0)
|
||
{
|
||
TabControl?.SelectPage(item.PageIndex);
|
||
}
|
||
}
|
||
}
|
||
|
||
MenuItemClick?.Invoke(SelectedNode, MenuHelper[SelectedNode], GetPageIndex(SelectedNode));
|
||
}
|
||
|
||
protected override void OnMouseWheel(MouseEventArgs e)
|
||
{
|
||
base.OnMouseWheel(e);
|
||
|
||
if (e.Delta > 10)
|
||
{
|
||
ScrollBarInfo.ScrollUp(Handle);
|
||
}
|
||
else if (e.Delta < -10)
|
||
{
|
||
ScrollBarInfo.ScrollDown(Handle);
|
||
}
|
||
|
||
SetScrollInfo();
|
||
}
|
||
|
||
public void SetScrollInfo()
|
||
{
|
||
if (Nodes.Count == 0)
|
||
{
|
||
Bar.Visible = false;
|
||
return;
|
||
}
|
||
|
||
int barWidth = Math.Max(ScrollBarInfo.VerticalScrollBarWidth(), ScrollBarWidth);
|
||
var si = ScrollBarInfo.GetInfo(Handle);
|
||
Bar.Maximum = si.ScrollMax;
|
||
Bar.Visible = si.ScrollMax > 0 && si.nMax > 0 && si.nPage > 0;
|
||
Bar.Value = si.nPos;
|
||
Bar.Width = barWidth;
|
||
Bar.BringToFront();
|
||
|
||
if (ScrollBarVisible != Bar.Visible)
|
||
{
|
||
ScrollBarVisible = Bar.Visible;
|
||
Invalidate();
|
||
}
|
||
}
|
||
|
||
protected override void OnAfterSelect(TreeViewEventArgs e)
|
||
{
|
||
base.OnAfterSelect(e);
|
||
|
||
if (ShowOneNode)
|
||
{
|
||
TreeNode node = e.Node.PrevNode;
|
||
while (node != null)
|
||
{
|
||
if (node.IsExpanded)
|
||
{
|
||
node.Collapse();
|
||
}
|
||
node = node.PrevNode;
|
||
}
|
||
|
||
node = e.Node.NextNode;
|
||
while (node != null)
|
||
{
|
||
if (node.IsExpanded)
|
||
{
|
||
node.Collapse();
|
||
}
|
||
node = node.NextNode;
|
||
}
|
||
}
|
||
|
||
if (e.Node != null && ExpandSelectFirst && e.Node.Nodes.Count > 0)
|
||
{
|
||
e.Node.Expand();
|
||
SelectedNode = e.Node.Nodes[0];
|
||
}
|
||
else
|
||
{
|
||
SelectedNode = e.Node;
|
||
}
|
||
}
|
||
|
||
protected override void OnAfterExpand(TreeViewEventArgs e)
|
||
{
|
||
base.OnAfterExpand(e);
|
||
SetScrollInfo();
|
||
}
|
||
|
||
protected override void OnAfterCollapse(TreeViewEventArgs e)
|
||
{
|
||
base.OnAfterCollapse(e);
|
||
SetScrollInfo();
|
||
}
|
||
|
||
protected override void WndProc(ref Message m)
|
||
{
|
||
if (IsDisposed || Disposing) return;
|
||
if (m.Msg == Win32.User.WM_ERASEBKGND)
|
||
{
|
||
m.Result = IntPtr.Zero;
|
||
return;
|
||
}
|
||
|
||
base.WndProc(ref m);
|
||
Win32.User.ShowScrollBar(Handle, 3, false);
|
||
}
|
||
|
||
#region 扩展函数
|
||
private readonly NavMenuHelper MenuHelper = new NavMenuHelper();
|
||
|
||
public void SelectPage(int pageIndex)
|
||
{
|
||
var node = MenuHelper.GetTreeNode(pageIndex);
|
||
if (node != null)
|
||
{
|
||
SelectedNode = node;
|
||
ShowSelectedNode();
|
||
}
|
||
}
|
||
|
||
public void SelectPage(Guid pageGuid)
|
||
{
|
||
var node = MenuHelper.GetTreeNode(pageGuid);
|
||
if (node != null)
|
||
{
|
||
SelectedNode = node;
|
||
ShowSelectedNode();
|
||
}
|
||
}
|
||
|
||
public int GetPageIndex(TreeNode node)
|
||
{
|
||
return MenuHelper.GetPageIndex(node);
|
||
}
|
||
|
||
public Guid GetPageGuid(TreeNode node)
|
||
{
|
||
return MenuHelper.GetGuid(node);
|
||
}
|
||
|
||
public TreeNode GetTreeNode(int pageIndex)
|
||
{
|
||
return MenuHelper.GetTreeNode(pageIndex);
|
||
}
|
||
|
||
public TreeNode GetTreeNode(Guid pageGuid)
|
||
{
|
||
return MenuHelper.GetTreeNode(pageGuid);
|
||
}
|
||
|
||
private void SetNodeItem(TreeNode node, NavMenuItem item)
|
||
{
|
||
MenuHelper.Add(node, item);
|
||
}
|
||
|
||
public UINavMenu SetNodePageIndex(TreeNode node, int pageIndex)
|
||
{
|
||
MenuHelper.SetPageIndex(node, pageIndex);
|
||
return this;
|
||
}
|
||
|
||
public UINavMenu SetNodePageGuid(TreeNode node, Guid pageGuid)
|
||
{
|
||
MenuHelper.SetPageGuid(node, pageGuid);
|
||
return this;
|
||
}
|
||
|
||
public UINavMenu SetNodeSymbol(TreeNode node, int symbol, int symbolSize = 24, int symbolRotate = 0)
|
||
{
|
||
MenuHelper.SetSymbol(node, symbol, symbolSize, symbolRotate);
|
||
return this;
|
||
}
|
||
|
||
public UINavMenu SetNodeSymbol(TreeNode node, int symbol, Point symbolOffset, int symbolSize = 24, int symbolRotate = 0)
|
||
{
|
||
MenuHelper.SetSymbol(node, symbol, symbolOffset, symbolSize, symbolRotate);
|
||
return this;
|
||
}
|
||
|
||
public UINavMenu SetNodeImageIndex(TreeNode node, int imageIndex)
|
||
{
|
||
node.ImageIndex = imageIndex;
|
||
return this;
|
||
}
|
||
|
||
public void SetNodeTipsText(TreeNode node, string nodeTipsText)
|
||
{
|
||
MenuHelper.SetTipsText(node, nodeTipsText);
|
||
}
|
||
|
||
public void SetNodeTipsText(TreeNode node, string nodeTipsText, Color nodeTipsBackColor, Color nodeTipsForeColor)
|
||
{
|
||
MenuHelper.SetTipsText(node, nodeTipsText, nodeTipsBackColor, nodeTipsForeColor);
|
||
}
|
||
|
||
public TreeNode CreateNode(string text, int pageIndex)
|
||
{
|
||
return CreateNode(new NavMenuItem(text, pageIndex));
|
||
}
|
||
|
||
public TreeNode CreateNode(string text, Guid pageGuid)
|
||
{
|
||
return CreateNode(new NavMenuItem(text, pageGuid));
|
||
}
|
||
|
||
public TreeNode CreateNode(UIPage page)
|
||
{
|
||
return CreateNode(new NavMenuItem(page));
|
||
}
|
||
|
||
public TreeNode CreateNode(string text, int symbol, int symbolSize, int pageIndex, int symbolRotate = 0)
|
||
{
|
||
var node = CreateNode(text, pageIndex);
|
||
SetNodeSymbol(node, symbol, symbolSize, symbolRotate);
|
||
return node;
|
||
}
|
||
|
||
public TreeNode CreateNode(string text, int symbol, Point symbolOffset, int symbolSize, int pageIndex, int symbolRotate = 0)
|
||
{
|
||
var node = CreateNode(text, pageIndex);
|
||
SetNodeSymbol(node, symbol, symbolOffset, symbolSize, symbolRotate);
|
||
return node;
|
||
}
|
||
|
||
private TreeNode CreateNode(NavMenuItem item)
|
||
{
|
||
TreeNode node = new TreeNode(item.Text);
|
||
Nodes.Add(node);
|
||
SetNodeItem(node, item);
|
||
return node;
|
||
}
|
||
|
||
public TreeNode CreateChildNode(TreeNode parent, string text, int pageIndex)
|
||
{
|
||
return CreateChildNode(parent, new NavMenuItem(text, pageIndex));
|
||
}
|
||
|
||
public TreeNode CreateChildNode(TreeNode parent, string text, Guid pageGuid)
|
||
{
|
||
return CreateChildNode(parent, new NavMenuItem(text, pageGuid));
|
||
}
|
||
|
||
public TreeNode CreateChildNode(TreeNode parent, UIPage page)
|
||
{
|
||
var childNode = CreateChildNode(parent, new NavMenuItem(page));
|
||
if (page.Symbol > 0)
|
||
{
|
||
MenuHelper.SetSymbol(childNode, page.Symbol, page.SymbolOffset, page.SymbolSize, page.SymbolRotate);
|
||
}
|
||
|
||
return childNode;
|
||
}
|
||
|
||
public TreeNode CreateChildNode(TreeNode parent, string text, int symbol, int symbolSize, int pageIndex, int symbolRotate = 0)
|
||
{
|
||
var node = CreateChildNode(parent, text, pageIndex);
|
||
SetNodeSymbol(node, symbol, symbolSize, symbolRotate);
|
||
return node;
|
||
}
|
||
|
||
public TreeNode CreateChildNode(TreeNode parent, string text, int symbol, Point symbolOffset, int symbolSize, int pageIndex, int symbolRotate = 0)
|
||
{
|
||
var node = CreateChildNode(parent, text, pageIndex);
|
||
SetNodeSymbol(node, symbol, symbolOffset, symbolSize, symbolRotate);
|
||
return node;
|
||
}
|
||
|
||
private TreeNode CreateChildNode(TreeNode parent, NavMenuItem item)
|
||
{
|
||
TreeNode childNode = new TreeNode(item.Text);
|
||
parent.Nodes.Add(childNode);
|
||
SetNodeItem(childNode, item);
|
||
return childNode;
|
||
}
|
||
|
||
private readonly Dictionary<TreeNode, List<int>> TreeNodeSymbols = new Dictionary<TreeNode, List<int>>();
|
||
|
||
public void AddNodeRightSymbol(TreeNode node, int symbol)
|
||
{
|
||
if (!TreeNodeSymbols.ContainsKey(node))
|
||
TreeNodeSymbols.Add(node, new List<int>());
|
||
|
||
TreeNodeSymbols[node].Add(symbol);
|
||
Invalidate();
|
||
}
|
||
|
||
public void RemoveNodeRightSymbol(TreeNode node, int symbol)
|
||
{
|
||
if (TreeNodeSymbols.ContainsKey(node))
|
||
{
|
||
int idx = TreeNodeSymbols[node].IndexOf(symbol);
|
||
if (idx >= 0)
|
||
{
|
||
TreeNodeSymbols[node].RemoveAt(idx);
|
||
Invalidate();
|
||
}
|
||
}
|
||
}
|
||
|
||
public void ClearNodeRightSymbol(TreeNode node)
|
||
{
|
||
if (TreeNodeSymbols.ContainsKey(node))
|
||
{
|
||
TreeNodeSymbols[node].Clear();
|
||
Invalidate();
|
||
}
|
||
}
|
||
|
||
#endregion 扩展函数
|
||
|
||
public delegate void OnNodeRightSymbolClick(object sender, TreeNode node, int index, int symbol);
|
||
|
||
public event OnNodeRightSymbolClick NodeRightSymbolClick;
|
||
}
|
||
} |