using System;
using System.Windows.Forms;
using CSFrameworkV5.Common;

namespace CSFrameworkV5.Library
{
    /// <summary>
    /// 等待窗体（已过时），请使用frmWaitingEx
    /// </summary>
    public partial class frmWaiting : Form
    {

        private static frmWaiting _Instance = null;

        public frmWaiting()
        {
            InitializeComponent();

            WinAPI.SetClassLong(this.Handle, WinAPI.GCL_STYLE,
                WinAPI.GetClassLong(this.Handle, WinAPI.GCL_STYLE) | WinAPI.CS_DropSHADOW); //API函数加载，实现窗体边框阴影效果
        }

        public void ShowWaitingMessage(string msg)
        {
            lblMsg.Text = msg;
            lblMsg.Invalidate();
        }

        public static void ShowMe(Form owner)
        {
            ShowMe(owner, "", false);
        }

        public static void ShowMe(Form owner, string message)
        {
            ShowMe(owner, message, false);
        }

        public static void ShowMe(Form owner, string message, bool disableOwner)
        {
            if (owner != null)
            {
                owner.Cursor = Cursors.WaitCursor;//调用窗体显示等待光标
                owner.Enabled = !disableOwner;
            }

            if (_Instance == null)
            {
                CCursor.ShowWaitCursor();
                _Instance = new frmWaiting();
                _Instance.Owner = owner;
                _Instance.Show();
            }

            if (message != "")
            {
                _Instance.lblMsg.Text = String.IsNullOrEmpty(message) ? _Instance.lblMsg.Text : message;
                _Instance.lblMsg.Invalidate();
            }

            Application.DoEvents();//刷新当前进程
        }

        public static void HideMe(Form owner)
        {
            if (_Instance != null)
            {
                _Instance.Close();
                _Instance = null;
            }

            if (owner != null)
            {
                owner.Focus();
                owner.Cursor = Cursors.Default;
            }
        }

        private void frmWaiting_FormClosed(object sender, FormClosedEventArgs e)
        {
            _Instance = null;
        }

    }
}