using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using Mesnac.Controls.Base;
using System.Drawing;
using System.Data;

namespace Mesnac.Controls.Default
{
    [ToolboxBitmap(typeof(DataGridView))]
    public partial class MCDataGridView : DataGridView, IBaseControl
    {
        #region 字段定义

        private bool _mcVisible = true; //保存可见性
        private bool _mcEnabled = true; //保存可用性
        private bool _isValid = true; //保存有效性
        private bool _isEventValid = true;  //保存事件有效性
        private bool _displayAllColumn;
        private List<DataGridViewColumns> _dgvColumn = new List<Base.DataGridViewColumns>();
        private List<DesignAction> _clickActionList = new List<DesignAction>();
        private List<DesignAction> _doubleClickActionList = new List<DesignAction>();
        private List<DesignAction> _selectionChangedActionList = new List<DesignAction>();
        //private DataTable dt = null;

        #endregion

        #region 构造方法

        public MCDataGridView()
        {
            InitializeComponent();
            this.MultiSelect = false;
            this.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
            this.RowHeadersVisible = false;
            this.AllowUserToAddRows = false;
            this.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
            this.RowTemplate.Resizable = DataGridViewTriState.False;
            this.ReadOnly = true;
            this.RowTemplate.Height = 20;
            //this.Controls.Add(this.comboBox1);

        }

        public MCDataGridView(IContainer container)
        {
            container.Add(this);

            InitializeComponent();
            this.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
            this.ReadOnly = true;
        }

        #endregion

        #region 解决多线程访问时显示大红叉的问题

        protected override void OnPaint(PaintEventArgs e)
        {
            try
            {
                base.OnPaint(e);
            }
            catch
            {
                Invalidate();
            }
        }

        #endregion

        #region 属性定义
        
        [Description("是否显示所有列"), Category("Behavior")]
        public bool DisplayAllColumn
        {
            get { return _displayAllColumn; }
            set { _displayAllColumn = value; }
        }
        
        [Description("显示列配置"), Category("Behavior")]
        public List<DataGridViewColumns> DgvColumn
        {
            get { return _dgvColumn; }
            set { _dgvColumn = value; }
        }

        public ComboBox mcCombobox
        {
            get { return this.comboBox1; }
        }

        #endregion

        #region 方法定义

        /// <summary>
        /// 显示列
        /// </summary>
        protected void displayColumn()
        {
            try
            {
                lock (this)
                {
                    this.AutoGenerateColumns = true;
                    for (int i = 0; i < this.Columns.Count; i++)
                    {
                        this.Columns[i].Visible = true;
                        this.Columns[i].SortMode = DataGridViewColumnSortMode.NotSortable;
                    }
                    if (!this._displayAllColumn)
                    {
                        int index = 1;
                        for (int i = 0; i < this.Columns.Count; i++)
                        {
                            DataGridViewColumns dgcs = new DataGridViewColumns();
                            dgcs = this._dgvColumn.Where(t => t.FiledData.ToLower() == this.Columns[i].DataPropertyName.ToLower()).FirstOrDefault();
                            if (dgcs != null)//显示
                            {
                                this.Columns[i].HeaderText = dgcs.DisplayName;
                                //this.Columns[i].Width = dgcs.DgvColumnWidth;
                            }
                            else
                            {
                                this.Columns[i].Visible = false;
                                this.Columns[i].DisplayIndex = this.Columns.Count - index;
                                index++;
                            }
                        }
                        int j = 0;
                        foreach (DataGridViewColumns item in this._dgvColumn)
                        {
                            for (int i = 0; i < this.Columns.Count; i++)
                            {
                                if (this.Columns[i].DataPropertyName.ToLower() == item.FiledData.ToLower())
                                {
                                    if (j == this._dgvColumn.Count - 1)
                                    {
                                        this.Columns[i].DisplayIndex = this.Columns.Count - 1;
                                    }
                                    else
                                    {
                                        this.Columns[i].DisplayIndex = j;
                                        j++;
                                    }
                                    break;
                                }
                            }
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
        }

        #endregion

        #region 事件定义
        
        public List<DesignAction> ClickActionList
        {
            get { return this._clickActionList; }
            set { this._clickActionList = value; }
        }

        public List<DesignAction> DoubleClickActionList
        {
            get { return _doubleClickActionList; }
            set { _doubleClickActionList = value; }
        }
        
        public List<DesignAction> SelectionChangedActionList
        {
            get { return _selectionChangedActionList; }
            set { _selectionChangedActionList = value; }
        }

        #endregion

        #region 接口成员实现

        public string MCKey
        {
            get;
            set;
        }

        public object MCValue
        {
            get
            {
                return this.DataSource == null ? new DataTable("MCDataGridView") : (DataTable)this.DataSource;
            }
            set { ;}
        }


        public IBaseControl MCRoot
        {
            get;
            set;
        }
        [TypeConverter(typeof(DataSourceConverter))]
        [Description("数据连接"), Category("数据")]
        public string MCDataSourceID
        {
            get;
            set;
        }
        public MCDataSource MCDataSource
        {
            get;
            set;
        }
        [Description("是否为数据库控件"), Category("数据")]
        public bool IsDbControl
        {
            get;
            set;
        }
        [Description("初始化SQL"), Category("数据")]
        public string InitDataSource
        {
            get;
            set;
        }
        [Description("执行SQL"), Category("数据")]
        public string ActionDataSource
        {
            get;
            set;
        }
        [Description("绑定数据源"), Category("数据")]
        public object BindDataSource
        {
            get
            {
                return this.DataSource == null ? new DataTable("MCDataGridView") : (DataTable)this.DataSource;
            }
            set
            {
                try
                {
                    lock (this)
                    {
                        this.DataSource = (DataTable)value == null ? new DataTable() : (DataTable)value;
                        displayColumn();
                    }
                }
                catch (Exception ex)
                {
                    Console.WriteLine(ex.Message);
                }
            }
        }
        [Description("操作类型"), Category("数据")]
        public DbOptionTypes DbOptionType
        {
            get;
            set;
        }
        [Description("是否可见"), Category("行为")]
        public bool MCVisible
        {
            get
            {
                return this._mcVisible;
            }
            set
            {
                lock (this)
                {
                    this._mcVisible = value == null ? true : value;
                    if (this.Site.DesignMode)
                        this.Visible = true;
                    else
                        this.Visible = this._mcVisible;
                }
            }
        }
        [Description("是否可用"), Category("行为")]
        public bool MCEnabled
        {
            get
            {
                return this._mcEnabled;
            }
            set
            {
                lock (this)
                {
                    this._mcEnabled = value == null ? true : value;
                    {
                        if (this.Site.DesignMode)
                        {
                            this.Enabled = true;
                        }
                        else
                        {
                            this.Enabled = this._mcEnabled;
                        }
                    }
                }
            }
        }

        public bool IsValid
        {
            get { return _isValid; }
            set { _isValid = value; }
        }

        public bool IsEventValid
        {
            get { return this._isEventValid; }
            set { this._isEventValid = value; }
        }

        #endregion

        #region 事件处理

        protected override void OnCellDoubleClick(DataGridViewCellEventArgs e)
        {
            base.OnCellDoubleClick(e);
        }

        protected override void OnCellClick(DataGridViewCellEventArgs e)
        {
            base.OnCellClick(e);
            this.EndEdit();
            this.comboBox1.Visible = false;
        }

        #endregion

        #region 表头合并试运行代码 LQK 20180724
        /*  
            MCDataGridView exG = new Utility.exGridView();
            List colNameCollection=new List();
            for (int i = 0; i < 10; i++)
            {
            //"colDraw"+i.ToString()是columnName的属性值
            colNameCollection.Add("colDraw" + i.ToString());
            }
            exG.MergeHeader(sender, e, colNameCollection, "0-9中奖号码分布图");
         */
        #region 合并列时使用到的位置和大小属性
        int cTop = 0;//被合并表头区域的顶部坐标
        int cLeft = 0;//被合并表头区域的左边坐标
        /// <summary>
        /// 被合并表头区域的宽
        /// </summary>
        int cWidth = 0;
        int cHeight = 0;//。。。高
        #endregion
        /// <summary>
        /// 判断是否已经将datagridview的表头变高了，只增高一次。
        /// </summary>
        public static bool isEnLarged = false;
        /// <summary>
        /// 合并表头,用在dataGridView的CellPainting事件中。
        /// </summary>
        /// <param name="sender">需要重绘的dataGridview</param>
        /// <param name="e">CellPainting中的参数</param>
        ///<param name="colName">列的集合(列必须是连续的，第一列放在最前面)</param>
        /// <param name="headerText">列合并后显示的文本</param>
        public void MergeHeader(object sender, DataGridViewCellPaintingEventArgs e, List<string> colNameCollection, string headerText)
        {
            if (e.RowIndex == -1)
            {
                DataGridView dataGridView1 = sender as DataGridView;
                string colName = dataGridView1.Columns[e.ColumnIndex].Name;
                if (!isEnLarged)
                {
                    //0.扩展表头高度为当前的2倍
                    dataGridView1.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.EnableResizing;
                    dataGridView1.ColumnHeadersHeight = e.CellBounds.Height * 2;
                    isEnLarged = true;
                }
                if (colNameCollection.Contains(colName))
                {
                    #region 重绘列头
                    //1.计算colLen个列的区域
                    if (colNameCollection.IndexOf(colName) == 0)
                    {
                        cTop = e.CellBounds.Top;
                        cLeft = e.CellBounds.Left;
                        cWidth = e.CellBounds.Width;
                        cHeight = e.CellBounds.Height / 2;
                        foreach (string colNameItem in colNameCollection)
                        {
                            if (colNameItem.Equals(colName))
                            {//除去自己一个，加了之后colLen-1个列的宽
                                continue;
                            }
                            cWidth += dataGridView1.Columns[colNameItem].Width;
                        }
                    }
                    Rectangle cArea = new Rectangle(cLeft, cTop, cWidth, cHeight);
                    //2.把区域设置为背景色，没有列的分线及任何文字。
                    using (Brush backColorBrush = new SolidBrush(e.CellStyle.BackColor))
                    {
                        e.Graphics.FillRectangle(backColorBrush, cArea);
                    }
                    //3.绘制新列头的边框
                    using (Pen gridPen = new Pen(dataGridView1.GridColor))
                    {
                        //3.1 上部边框
                        e.Graphics.DrawLine(gridPen, cLeft, cTop, cLeft + cWidth, cTop);
                        using (Pen hilightPen = new Pen(Color.WhiteSmoke))
                        {
                            //3.2 顶部高光
                            e.Graphics.DrawLine(hilightPen, cLeft, cTop + 1, cLeft + cWidth, cTop + 1);
                            //3.3 左部反光线
                            e.Graphics.DrawLine(hilightPen, cLeft, cTop + 3, cLeft, cTop + cHeight - 2);
                        }
                        //3.4 下部边框
                        e.Graphics.DrawLine(gridPen, cLeft, cTop + cHeight - 1, cLeft + cWidth, cTop + cHeight - 1);
                        //3.5 右部边框                        
                        e.Graphics.DrawLine(gridPen, cLeft + cWidth - 1, cTop, cLeft + cWidth - 1, cTop + cHeight);//(cTop+cHeight)/2);
                    }
                    //4.写文本
                    if (colNameCollection.IndexOf(colName) == 0)
                    {//不是第一列则不写文字。
                        int wHeadStr = (int)(headerText.Length * e.CellStyle.Font.SizeInPoints);
                        int wHeadCell = cWidth;
                        int pHeadLeft = (wHeadCell - wHeadStr) / 2 - 6;
                        using (Brush foreBrush = new SolidBrush(e.CellStyle.ForeColor))
                        {
                            e.Graphics.DrawString(headerText, e.CellStyle.Font, foreBrush, new PointF(cLeft + pHeadLeft, cTop + 3));
                        }
                    }

                    //5 绘制子列背景
                    int FatherColHeight = e.CellBounds.Height / 2;//上面一行的高度 
                    using (Brush backColorBrush = new SolidBrush(e.CellStyle.BackColor))
                    {
                        e.Graphics.FillRectangle(backColorBrush, new Rectangle(e.CellBounds.X, e.CellBounds.Y + FatherColHeight, e.CellBounds.Width - 1, e.CellBounds.Height / 2 - 1));
                    }
                    //5.1绘制子列的边框                   
                    using (Pen gridPen = new Pen(dataGridView1.GridColor))
                    {
                        using (Pen hilightPen = new Pen(Color.WhiteSmoke))
                        {
                            //5.2 左部反光线
                            e.Graphics.DrawLine(hilightPen, cLeft, cTop + 3 + FatherColHeight, cLeft, cTop + cHeight - 2 + FatherColHeight);
                        }
                        //5.3 下部边框
                        e.Graphics.DrawLine(gridPen, cLeft, cTop + cHeight - 1 + FatherColHeight, cLeft + cWidth, cTop + cHeight - 1 + FatherColHeight);
                        //5.4 右部边框 
                        e.Graphics.DrawLine(gridPen, e.CellBounds.X + e.CellBounds.Width - 1, e.CellBounds.Top + FatherColHeight, e.CellBounds.X + e.CellBounds.Width - 1, e.CellBounds.Top + e.CellBounds.Height + FatherColHeight);//(cTop+cHeight)/2);                    
                    }
                    //5.5 写子列的文本
                    int wStr = (int)(dataGridView1.Columns[e.ColumnIndex].HeaderText.Length * e.CellStyle.Font.SizeInPoints);
                    int wCell = e.CellBounds.Width;
                    int pLeft = (wCell - wStr) / 2;//相对CELL左边框的左坐标
                    using (Brush foreBrush = new SolidBrush(e.CellStyle.ForeColor))
                    {
                        e.Graphics.DrawString(dataGridView1.Columns[e.ColumnIndex].HeaderText, e.CellStyle.Font, foreBrush, new PointF(e.CellBounds.X + pLeft, cTop + 3 + FatherColHeight));
                    }
                    #endregion
                    e.Handled = true;
                }
            }
        }
        #endregion
    }
}