/******************************
* 说明：自定义备注框
* 创建人：龚宇超
* 创建日期：2017-08-07
* 修改人：
* 修改日期：
* 修改备注：
* 版本：1.0.0.0
******************************/
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;
using DevExpress.XtraEditors;
using System.IO;

namespace Lskj.Control
{
    /// <summary>
    /// 自定义备注框
    /// </summary>
    public partial class LabelRemarkEdit : BaseUserControl
    {
        /// <summary>
        /// 当 lasttext 为空（清空）时触发。
        /// </summary>
        public event EventHandler LastTextEmpty;
        /// <summary>
        /// 文本控件
        /// </summary>
        public MemoEdit TextEdit { get { return txtEdit; } }
        /// <summary>
        /// 存储文件地址（用于保存上传）
        /// </summary>
        public string filepath;
        /// <summary>
        /// 存储原文件名
        /// </summary>
        public string lasttext;
        public LabelRemarkEdit()
        {
            InitializeComponent();
        }
        public void BandAllowDrop()
        {
            txtEdit.AllowDrop = true;
            txtEdit.DragEnter += OnDragEnter;
            txtEdit.DragDrop += OnDragDrop;
        }
        /// <summary>
        /// 拖拽完成触发
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void OnDragDrop(object sender, DragEventArgs e)
        {
            var file = ((string[])e.Data.GetData(DataFormats.FileDrop))[0];
            string filename = Path.GetFileName(file);
            if (!string.IsNullOrEmpty(lasttext))
            {
                if (string.Equals(lasttext, filename, StringComparison.OrdinalIgnoreCase))
                {

                    MessageUtil.Show("检测到更改文件和原文件完全一样！");
                }
                else
                {
                    string prefix1 = GetPrefixBeforeLastS(filename, StringComparison.OrdinalIgnoreCase);
                    string prefix2 = GetPrefixBeforeLastS(lasttext, StringComparison.OrdinalIgnoreCase);
                    if (string.Equals(prefix1, prefix2, StringComparison.OrdinalIgnoreCase))
                    {
                        txtEdit.Text = filename;
                        this.filepath = file;
                    }
                    else
                    {
                        MessageUtil.Show("检测到更改文件和原文件不匹配！");
                    }
                }
            }
            else
            {
                txtEdit.Text = filename;
                this.filepath = file;
                OnLastTextEmpty();
            }
           
        }
        /// <summary>
        /// 拖拽为空触发回调
        /// </summary>
        protected virtual void OnLastTextEmpty()
        {
            LastTextEmpty?.Invoke(this, EventArgs.Empty);
        }
        /// <summary>
        /// 取出最后一次出现 "-S" 之前的部分（不含扩展名）
        /// </summary>
        private static string GetPrefixBeforeLastS(string fileName, StringComparison comp)
        {
            if (string.IsNullOrEmpty(fileName)) return string.Empty;

            // 1) 去掉扩展名
            int dot = fileName.LastIndexOf('.');
            string noExt = dot >= 0 ? fileName.Substring(0, dot) : fileName;

            // 2) 找最后一次出现 "-S"
            int pos = noExt.LastIndexOf("-S", comp);
            return pos >= 0 ? noExt.Substring(0, pos) : noExt;
        }
        /// <summary>
        /// <para>说明：移动到目标表格</para>
        /// <para>创建人：龚宇超</para>
        /// <para>创建日期：2017-11-13 </para>
        /// <para>修改人：</para>
        /// <para>修改日期：</para>
        /// <para>修改备注：</para>
        /// <para>版本：1.0</para>
        /// </summary>
        /// <param name="sender">The source of the event.</param>
        /// <param name="e">The <see cref="System.Windows.Forms.DragEventArgs"/> instance containing the event data.</param>
        protected void OnDragEnter(object sender, System.Windows.Forms.DragEventArgs e)
        {
            if (e.Data.GetDataPresent(DataFormats.FileDrop) &&
     ((string[])e.Data.GetData(DataFormats.FileDrop)).Length == 1)
                e.Effect = DragDropEffects.Copy;
            else
                e.Effect = DragDropEffects.None;
        }

        /// <summary>
        /// <para>说明：设置控件显示文本</para>
        /// <para>创建人：龚宇超</para>
        /// <para>创建日期：2017-08-07 </para>
        /// <para>修改人：</para>
        /// <para>修改日期：</para>
        /// <para>修改备注：</para>
        /// <para>版本：1.0</para>
        /// </summary>
        /// <param name="text">显示Lebel文本</param>
        public override string LabelText
        {
            get
            {
                return this.lblText.Text;
            }
            set
            {
                this.lblText.Text = value;
                if (FontSize > 0)
                {
                    this.plLeft.Dock = DockStyle.Left;
                    this.plLeft.AutoSize = false;
                    this.lblText.AutoSize = false;
                    this.lblText.Dock = System.Windows.Forms.DockStyle.Fill;
                    this.lblText.Location = new System.Drawing.Point(0, 0);
                    this.lblText.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
                    this.txtEdit.Properties.AutoHeight = false;
                    this.plLeft.Width = value.Length * GetCharWidth();

                    GetCharWidthMultilingual(this.lblText, this.lblText.Text, this.plLeft);
                }
                else
                {
                    Graphics g = this.lblText.CreateGraphics();
                    SizeF sizeF = g.MeasureString(value, this.lblText.Font);
                    this.plLeft.Width = (int)sizeF.Width + PaddingLeft;
                }
            }
        }
        /// <summary>
        /// 字体大小
        /// </summary>
        /// <value>The size of the control.</value>
        public override float FontSize
        {
            get
            {
                return base.FontSize;
            }
            set
            {
                base.FontSize = value;
                if (value > 0)
                {
                    this.lblText.Font = new Font(this.lblText.Font.FontFamily, value);
                    this.TextEdit.Font = new Font(this.TextEdit.Font.FontFamily, value);
                }
            }
        }
        /// <summary>
        /// <para>说明：设置控件值</para>
        /// <para>创建人：龚宇超</para>
        /// <para>创建日期：2017-08-07 </para>
        /// <para>修改人：</para>
        /// <para>修改日期：</para>
        /// <para>修改备注：</para>
        /// <para>版本：1.0</para>
        /// </summary>
        public override string EditText
        {
            get
            {
                return this.txtEdit.Text;
            }
            set
            {
                this.txtEdit.Text = value;
            }
        }
        /// <summary>
        /// <para>说明：设置控件提示文本</para>
        /// <para>创建人：龚宇超</para>
        /// <para>创建日期：2017-08-07 </para>
        /// <para>修改人：</para>
        /// <para>修改日期：</para>
        /// <para>修改备注：</para>
        /// <para>版本：1.0</para>
        /// </summary>
        /// <returns>返回控件值</returns>
        public override string NullText
        {
            get
            {
                return this.txtEdit.Properties.NullValuePrompt;
            }
            set
            {
                if (!string.IsNullOrEmpty(value))
                {
                    this.TextEdit.Properties.NullValuePromptShowForEmptyValue = true;
                    this.TextEdit.Properties.NullValuePrompt = value;
                }
                base.NullText = value;
            }
        }
        /// <summary>
        /// 只读文本颜色
        /// </summary>
        ///