/*******************************************************************************
 * Copyright(c) 2014 DongkeSoft All rights reserved. / Confidential
 * 类的信息：
 *      1.程序名称：DKButtonTreeView.cs
 *      2.功能描述：系统导航栏中Button和TreeView形式用户控件
 * 编辑履历：
 *      作者            日期                版本            修改内容
 *      张国印          2014/08/27          1.00            新建
 *******************************************************************************/

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace Dongke.IBOSS.PRD.Basics.BaseControls
{
    /// <summary>
    /// 系统导航栏中Button和TreeView形式用户控件
    /// </summary>
    public partial class DKButtonTreeView : UserControl, IDKControl
    {
        #region 自定义控件公用属性和对外事件定义
        public delegate void TreeView_DoubleClick(object sender, EventArgs e);
        public event TreeView_DoubleClick TreeViewDoubleClick;

        public delegate void TreeView_AfterCollapse(object sender, TreeViewEventArgs e);
        public event TreeView_AfterCollapse TreeViewAfterCollapse;

        public delegate void TreeView_AfterExpand(object sender, TreeViewEventArgs e);
        public event TreeView_AfterExpand TreeViewAfterExpand;

        public delegate TreeNode TreeView_GetTreeViewNodes(string appID);
        public event TreeView_GetTreeViewNodes GetTreeViewNodes;

        public Dictionary<string, string> dicButton;
        private int buttonHight = 28;
        private int buttonCount = 0;

        private bool _beginAsyncStatus;                         // 异步处理开始时，控件状态
        #endregion

        #region 构造函数
        public DKButtonTreeView()
        {
            InitializeComponent();
            this.dicButton = new Dictionary<string, string>();
        }

        public DKButtonTreeView(Dictionary<string, string> pDicButtons)
        {
            InitializeComponent();
            this.dicButton = pDicButtons;
        }
        #endregion

        #region  对应事件处理
        private void DKButtonTreeView_Load(object sender, EventArgs e)
        {
            ButtonAndTreeIni();
        }

        private void panelMemu_Layout(object sender, LayoutEventArgs e)
        {
            this.tvMemu.Width = this.panelMemu.Width - 2;
            this.tvMemu.Height = this.panelMemu.Height - (buttonCount * buttonHight);
        }

        private void tvMemu_DoubleClick(object sender, EventArgs e)
        {
            if (TreeViewDoubleClick != null)
            {
                TreeViewDoubleClick(sender, e);
            }
        }


        private void tvMemu_AfterCollapse(object sender, TreeViewEventArgs e)
        {
            if (TreeViewAfterCollapse != null)
            {
                TreeViewAfterCollapse(sender, e);
                e.Node.SelectedImageIndex = 0;
                e.Node.ImageIndex = 0;
            }
        }

        private void tvMemu_AfterExpand(object sender, TreeViewEventArgs e)
        {
            if (TreeViewAfterExpand != null)
            {
                e.Node.SelectedImageIndex = 2;
                e.Node.ImageIndex = 2;
                TreeViewAfterExpand(sender, e);
            }
        }
        #endregion

        #region 自定义方法
        /// <summary>
        ///  设置要显示的一级菜单项目
        /// </summary>
        /// <param name="pDicButtons"></param>
        public void SetMenuDictionart(Dictionary<string, string> pDicButtons)
        {
            this.dicButton = pDicButtons;
            ButtonAndTreeIni();
        }

        /// <summary>
        /// 设置空间的停靠属性，默认第一个面板展开
        /// </summary>
        /// <param name="index"></param>
        private void SetSplitContainerDock(int index)
        {
            foreach (Control control in this.panelMemu.Controls)
            {
                if (control is Button)
                {
                    Button btn = (Button)control;
                    if (btn.TabIndex > index)
                    {
                        if (btn.Dock != DockStyle.Bottom)
                        {
                            btn.Dock = DockStyle.Bottom;
                            btn.BringToFront(); //把控件置于顶层
                        }
                    }
                    else
                    {
                        if (btn.Dock != DockStyle.Top)
                        {
                            btn.Dock = DockStyle.Top;
                            btn.BringToFront(); //把控件置于顶层
                        }
                    }
                }
                this.tvMemu.Left = 0;
                this.tvMemu.Top = index * buttonHight;
            }
        }

        /// <summary>
        /// 根据模块编号获取该模块下的数据
        /// </summary>
        /// <param name="appId"></param>
        private void GetModulesOfApplication(string appId)
        {
            if (GetTreeViewNodes != null)
            {
                this.tvMemu.Nodes.Clear();
                TreeNode tempNode = GetTreeViewNodes(appId);
                if (tempNode != null)
                {
                    this.tvMemu.Nodes.Add(tempNode);
                    this.tvMemu.ExpandAll();
                    if (this.tvMemu.Nodes != null && this.tvMemu.Nodes.Count > 0)
                    {
                        this.tvMemu.Nodes[0].EnsureVisible();
                    }
                }
            }
        }

        /// <summary>
        /// 初始化用户控件方法
        /// </summary>
        private void ButtonAndTreeIni()
        {
            int width = this.panelMemu.Width;
            int index = 0;
            int tabIndex = 0;
            string applicationId = "01";
            if (this.dicButton.Count > 0)
            {
                buttonCount = this.dicButton.Count;
                Button[] btnCollections = new Button[buttonCount];
                foreach (var newKey in dicButton)
                {
                    #region 为Button控件赋值
                    Button btn = new Button
                    {
                        Tag = newKey.Key,
                        Text = newKey.Value,
                        Width = width - 2,
                        Height = buttonHight,
                        Dock = DockStyle.Top,
                        BackColor = SystemColors.Control,
                        UseVisualStyleBackColor = false,    //不使用XP主题样式
                        TextAlign = ContentAlignment.MiddleCenter,
                        TabIndex = index + 1,
                    };
                    #endregion

                    #region 设置Button控件事件
                    btn.Click += (s, ex) =>
                    {
                        Button clickedButton = (Button)s;
                        int clickedButtonTabIndex = clickedButton.TabIndex;

                        //设置按钮的停靠顺序
                        SetSplitContainerDock(clickedButtonTabIndex);

                        //加载系统菜单
                        string strTag = clickedButton.Tag.ToString();
                        GetModulesOfApplication(strTag);
                        this.tvMemu.BringToFront();
                        this.tvMemu.Focus();    //2014-9-30 张国印 增加 用于获取焦点  使得滚动条可用

                    };
                    #endregion

                    if (index == 0)
                    {
                        tabIndex = 1;
                        applicationId = btn.Tag.ToString();
                    }
                    btnCollections[index++] = btn;
                }
                Array.Reverse(btnCollections);  //反转数组，改变控件的Z顺序，此句将直接影响下面添加的顺序
                this.panelMemu.Controls.AddRange(btnCollections);
                SetSplitContainerDock(tabIndex);  //设置按钮的停靠顺序
                GetModulesOfApplication(applicationId); //加载系统菜单
                this.panelMemu.Padding = new Padding { Left = 0, Right = 0 };    //设置折叠面板和外边缘的间隔像素

                this.tvMemu.Width = width - 2;
                this.tvMemu.Height = this.panelMemu.Height - (buttonCount * buttonHight);
                this.tvMemu.Focus();    //2014-9-30 张国印 增加 用于获取焦点  使得滚动条可用
            }
        }
        #endregion

        #region 公有方法
        /// <summary>
        /// 异步处理开始
        /// </summary>
        public void BeginAsync()
        {
            this._beginAsyncStatus = this.Enabled;
            this.Enabled = true;
        }

        /// <summary>
        /// 异步处理结束
        /// </summary>
        public void EndAsync()
        {
            this.Enabled = this._beginAsyncStatus;
        }
        #endregion
    }
}