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 Stone.Common;
using System.IO;

namespace Stone.WinModule.MyControl
{
    public partial class MyFileEdit : UserControl
    {
        public string filecontent = "";

        public MyFileEdit()
        {
            InitializeComponent();
        }

        [CategoryAttribute(""), DescriptionAttribute("文件类型(*.btw)|*.btw")]
        public string Filter
        {
            get
            {
                return this.saveFileDialog1.Filter; 
            }

            set
            {
                this.saveFileDialog1.Filter = value;
                this.openFileDialog1.Filter = value;
            }
        }

        private void btnSelect_Click(object sender, EventArgs e)
        {
            try
            {
                if (this.openFileDialog1.ShowDialog() == DialogResult.OK)
                {
                    byte[] buff = File.ReadAllBytes(this.openFileDialog1.FileName);
                    this.filecontent = Convert.ToBase64String(buff);

                    this.txtFileName.Text = this.openFileDialog1.SafeFileName;

                    
                }

            }
            catch (Exception ex)
            {
                MyMessageBox.ShowErrorMessage(ex.Message);
            }
        }

        private void btnSave_Click(object sender, EventArgs e)
        {
            try
            {
                if(this.txtFileName.Text.Trim() == "")
                {
                    throw new Exception("当前没有文件");
                }

                this.saveFileDialog1.FileName = this.txtFileName.Text.Trim();
                if (this.saveFileDialog1.ShowDialog() == DialogResult.OK)
                {
                    byte[] buff = Convert.FromBase64String(this.filecontent);

                    File.WriteAllBytes(this.saveFileDialog1.FileName, buff);

                    MyMessageBox.ShowInfoMessage(this.saveFileDialog1.FileName + " 另存成功");
                }

            }
            catch (Exception ex)
            {
                MyMessageBox.ShowErrorMessage(ex.Message);
            }
        }

        private void btnDelete_Click(object sender, EventArgs e)
        {
            try
            {
                if (this.txtFileName.Text.Trim() == "")
                    throw new Exception("当前没有可删除的文件");

                if(MyMessageBox.ShowQuestion("是否要删除文件？"))
                {
                    this.txtFileName.Text = "";
                    this.filecontent = "";
                }


            }catch(Exception ex)
            {
                MyMessageBox.ShowErrorMessage(ex.Message);
            }
        }
    }
}