mirror of
https://github.com/eggplantlwj/VisionEdit.git
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397 lines
15 KiB
C#
397 lines
15 KiB
C#
// ***********************************************************************
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// Assembly : HZH_Controls
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// Created : 08-15-2019
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//
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// ***********************************************************************
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// <copyright file="UCMenu.cs">
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// Copyright by Huang Zhenghui(黄正辉) All, QQ group:568015492 QQ:623128629 Email:623128629@qq.com
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// </copyright>
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//
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// Blog: https://www.cnblogs.com/bfyx
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// GitHub：https://github.com/kwwwvagaa/NetWinformControl
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// gitee：https://gitee.com/kwwwvagaa/net_winform_custom_control.git
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//
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// If you use this code, please keep this note.
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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.Data;
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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 HZH_Controls.Controls
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{
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/// <summary>
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/// Class UCMenu.
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/// Implements the <see cref="System.Windows.Forms.UserControl" />
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/// </summary>
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/// <seealso cref="System.Windows.Forms.UserControl" />
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public partial class UCMenu : UserControl
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{
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/// <summary>
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/// 选中项事件
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/// </summary>
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public event EventHandler SelectedItem;
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/// <summary>
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/// The m parent item type
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/// </summary>
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private Type m_parentItemType = typeof(UCMenuParentItem);
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/// <summary>
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/// 父类节点类型
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/// </summary>
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/// <value>The type of the parent item.</value>
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/// <exception cref="System.Exception">节点控件没有实现IMenuItem接口</exception>
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/// <exception cref="Exception">节点控件没有实现IMenuItem接口</exception>
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public Type ParentItemType
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{
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get { return m_parentItemType; }
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set
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{
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if (value == null)
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return;
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if (!typeof(IMenuItem).IsAssignableFrom(value) || !value.IsSubclassOf(typeof(Control)))
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throw new Exception("节点控件没有实现IMenuItem接口");
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m_parentItemType = value;
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}
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}
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/// <summary>
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/// The m children item type
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/// </summary>
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private Type m_childrenItemType = typeof(UCMenuChildrenItem);
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/// <summary>
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/// 子类节点类型
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/// </summary>
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/// <value>The type of the children item.</value>
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/// <exception cref="System.Exception">节点控件没有实现IMenuItem接口</exception>
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/// <exception cref="Exception">节点控件没有实现IMenuItem接口</exception>
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public Type ChildrenItemType
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{
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get { return m_childrenItemType; }
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set
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{
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if (value == null)
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return;
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if (!typeof(IMenuItem).IsAssignableFrom(value) || !value.IsSubclassOf(typeof(Control)))
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throw new Exception("节点控件没有实现IMenuItem接口");
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m_childrenItemType = value;
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}
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}
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/// <summary>
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/// The m parent item styles
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/// </summary>
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private Dictionary<string, object> m_parentItemStyles;
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/// <summary>
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/// 父类节点样式设置，key：属性名称，value：属性值
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/// </summary>
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/// <value>The parent item styles.</value>
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public Dictionary<string, object> ParentItemStyles
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{
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get { return m_parentItemStyles; }
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set { m_parentItemStyles = value; }
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}
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/// <summary>
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/// The m children item styles
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/// </summary>
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private Dictionary<string, object> m_childrenItemStyles;
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/// <summary>
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/// 子类节点样式设置，key：属性名称，value：属性值
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/// </summary>
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/// <value>The children item styles.</value>
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public Dictionary<string, object> ChildrenItemStyles
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{
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get { return m_childrenItemStyles; }
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set { m_childrenItemStyles = value; }
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}
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/// <summary>
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/// The m data source
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/// </summary>
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private List<MenuItemEntity> m_dataSource;
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/// <summary>
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/// 数据源
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/// </summary>
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/// <value>The data source.</value>
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public List<MenuItemEntity> DataSource
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{
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get { return m_dataSource; }
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set
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{
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m_dataSource = value;
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ReloadItems();
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}
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}
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/// <summary>
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/// The m is show first item
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/// </summary>
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private bool m_isShowFirstItem = true;
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/// <summary>
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/// 是否自动展开第一个节点
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/// </summary>
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/// <value><c>true</c> if this instance is show first item; otherwise, <c>false</c>.</value>
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public bool IsShowFirstItem
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{
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get { return m_isShowFirstItem; }
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set { m_isShowFirstItem = value; }
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}
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/// <summary>
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/// The m menu style
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/// </summary>
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private MenuStyle m_menuStyle = MenuStyle.Fill;
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/// <summary>
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/// 菜单样式
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/// </summary>
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/// <value>The menu style.</value>
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public MenuStyle MenuStyle
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{
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get { return m_menuStyle; }
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set { m_menuStyle = value; }
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}
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/// <summary>
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/// The m LST parent items
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/// </summary>
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private List<Control> m_lstParentItems = new List<Control>();
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/// <summary>
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/// The m select parent item
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/// </summary>
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private IMenuItem m_selectParentItem = null;
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/// <summary>
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/// The m select children item
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/// </summary>
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private IMenuItem m_selectChildrenItem = null;
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/// <summary>
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/// The m pan children
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/// </summary>
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private Panel m_panChildren = null;
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/// <summary>
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/// Reloads the items.
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/// </summary>
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private void ReloadItems()
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{
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try
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{
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ControlHelper.FreezeControl(this, true);
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this.Controls.Clear();
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m_lstParentItems.Clear();
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if (m_dataSource != null && m_dataSource.Count > 0)
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{
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foreach (var parent in m_dataSource)
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{
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IMenuItem parentItem = (IMenuItem)Activator.CreateInstance(m_parentItemType);
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parentItem.DataSource = parent;
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if (m_parentItemStyles != null)
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parentItem.SetStyle(m_parentItemStyles);
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parentItem.SelectedItem += parentItem_SelectedItem;
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Control c = parentItem as Control;
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c.Dock = DockStyle.Top;
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if (parent.Childrens.Count <= 0)
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{
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parentItem.SetSelectedStyle(null);
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}
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this.Controls.Add(c);
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this.Controls.SetChildIndex(c, 0);
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m_lstParentItems.Add(c);
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}
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}
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m_panChildren = new Panel();
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if (m_menuStyle == HZH_Controls.Controls.MenuStyle.Fill)
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{
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m_panChildren.Dock = DockStyle.Fill;
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m_panChildren.Height = 0;
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}
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else
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{
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m_panChildren.Dock = DockStyle.Top;
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m_panChildren.Height = 0;
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}
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m_panChildren.AutoScroll = true;
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this.Controls.Add(m_panChildren);
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}
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finally
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{
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ControlHelper.FreezeControl(this, false);
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}
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if (m_isShowFirstItem && m_lstParentItems != null && m_lstParentItems.Count > 0)
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{
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parentItem_SelectedItem(m_lstParentItems[0], null);
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}
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}
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/// <summary>
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/// Handles the SelectedItem event of the parentItem control.
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/// </summary>
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/// <param name="sender">The source of the event.</param>
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/// <param name="e">The <see cref="EventArgs" /> instance containing the event data.</param>
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void parentItem_SelectedItem(object sender, EventArgs e)
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{
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this.FindForm().ActiveControl = this;
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IMenuItem item = sender as IMenuItem;
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bool? blnNull = null;
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if (m_lstParentItems.Contains(sender as Control))
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{
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if (m_selectParentItem != item)
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{
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if (m_selectParentItem != null)
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{
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m_selectParentItem.SetSelectedStyle((m_selectParentItem.DataSource == null || m_selectParentItem.DataSource.Childrens == null || m_selectParentItem.DataSource.Childrens.Count <= 0) ? blnNull : false);
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}
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m_selectParentItem = item;
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m_selectParentItem.SetSelectedStyle((m_selectParentItem.DataSource == null || m_selectParentItem.DataSource.Childrens == null || m_selectParentItem.DataSource.Childrens.Count <= 0) ? blnNull : true);
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SetChildrenControl(m_selectParentItem);
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}
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else
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{
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m_selectParentItem.SetSelectedStyle((m_selectParentItem.DataSource == null || m_selectParentItem.DataSource.Childrens == null || m_selectParentItem.DataSource.Childrens.Count <= 0) ? blnNull : false);
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m_selectParentItem = null;
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SetChildrenControl(m_selectParentItem, false);
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}
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}
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else if (m_panChildren.Controls.Contains(sender as Control))
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{
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if (m_selectChildrenItem != item)
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{
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if (m_selectChildrenItem != null)
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{
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m_selectChildrenItem.SetSelectedStyle((m_selectParentItem.DataSource == null || m_selectParentItem.DataSource.Childrens == null || m_selectParentItem.DataSource.Childrens.Count <= 0) ? blnNull : false);
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}
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m_selectChildrenItem = item;
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m_selectChildrenItem.SetSelectedStyle((m_selectParentItem.DataSource == null || m_selectParentItem.DataSource.Childrens == null || m_selectParentItem.DataSource.Childrens.Count <= 0) ? blnNull : true);
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}
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}
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if (SelectedItem != null)
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{
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SelectedItem(sender, e);
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}
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}
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/// <summary>
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/// Sets the children control.
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/// </summary>
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/// <param name="menuitem">The menuitem.</param>
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/// <param name="blnChildren">if set to <c>true</c> [BLN children].</param>
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private void SetChildrenControl(IMenuItem menuitem, bool blnChildren = true)
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{
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try
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{
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ControlHelper.FreezeControl(this, true);
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if (m_menuStyle == HZH_Controls.Controls.MenuStyle.Fill)
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{
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if (blnChildren)
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{
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Control cMenu = menuitem as Control;
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int index = m_lstParentItems.IndexOf(cMenu);
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for (int i = 0; i <= index; i++)
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{
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m_lstParentItems[i].Dock = DockStyle.Top;
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this.Controls.SetChildIndex(m_lstParentItems[i], 1);
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}
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for (int i = index + 1; i < m_lstParentItems.Count; i++)
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{
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m_lstParentItems[i].Dock = DockStyle.Bottom;
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this.Controls.SetChildIndex(m_lstParentItems[i], m_lstParentItems.Count);
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}
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m_panChildren.Controls.Clear();
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int intItemHeigth = 0;
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foreach (var item in menuitem.DataSource.Childrens)
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{
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IMenuItem parentItem = (IMenuItem)Activator.CreateInstance(m_childrenItemType);
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parentItem.DataSource = item;
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if (m_childrenItemStyles != null)
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parentItem.SetStyle(m_childrenItemStyles);
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parentItem.SelectedItem += parentItem_SelectedItem;
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Control c = parentItem as Control;
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if (intItemHeigth == 0)
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intItemHeigth = c.Height;
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c.Dock = DockStyle.Top;
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m_panChildren.Controls.Add(c);
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m_panChildren.Controls.SetChildIndex(c, 0);
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}
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//m_panChildren.MinimumSize = new Size(0, menuitem.DataSource.Childrens.Count * intItemHeigth);
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}
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else
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{
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m_panChildren.Controls.Clear();
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foreach (var item in m_lstParentItems)
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{
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item.Dock = DockStyle.Top;
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this.Controls.SetChildIndex(item, 1);
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}
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}
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}
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else
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{
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if (blnChildren)
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{
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Control cMenu = menuitem as Control;
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int index = m_lstParentItems.IndexOf(cMenu);
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this.Controls.SetChildIndex(m_panChildren, m_lstParentItems.Count - index - 1);
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m_panChildren.Controls.Clear();
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int intItemHeigth = 0;
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foreach (var item in menuitem.DataSource.Childrens)
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{
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IMenuItem parentItem = (IMenuItem)Activator.CreateInstance(m_childrenItemType);
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parentItem.DataSource = item;
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if (m_childrenItemStyles != null)
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parentItem.SetStyle(m_childrenItemStyles);
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parentItem.SelectedItem += parentItem_SelectedItem;
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Control c = parentItem as Control;
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if (intItemHeigth == 0)
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intItemHeigth = c.Height;
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c.Dock = DockStyle.Top;
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m_panChildren.Controls.Add(c);
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m_panChildren.Controls.SetChildIndex(c, 0);
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}
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m_panChildren.Height = menuitem.DataSource.Childrens.Count * intItemHeigth;
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}
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else
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{
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m_panChildren.Controls.Clear();
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m_panChildren.Height = 0;
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}
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}
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}
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finally
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{
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ControlHelper.FreezeControl(this, false);
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}
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}
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/// <summary>
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/// Initializes a new instance of the <see cref="UCMenu" /> class.
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/// </summary>
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public UCMenu()
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{
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InitializeComponent();
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}
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}
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/// <summary>
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/// Enum MenuStyle
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/// </summary>
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public enum MenuStyle
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{
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/// <summary>
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/// 平铺
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/// </summary>
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Fill = 1,
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/// <summary>
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/// 顶部对齐
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/// </summary>
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Top = 2,
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}
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}
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