using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.NetworkInformation;
using System.Net;
using System.Text;
using System.Threading.Tasks;
using System.Drawing;
using System.Windows.Forms;
using System.Runtime.InteropServices;

namespace PageDesign
{
    public class Tools
    {
        /// <summary>
        /// 检测端口是否被占用
        /// </summary>
        /// <param name="port"></param>
        /// <returns></returns>
        public static bool PortInUse(int port)
        {
            bool inUse = false;

            IPGlobalProperties ipProperties = IPGlobalProperties.GetIPGlobalProperties();
            IPEndPoint[] ipEndPoints = ipProperties.GetActiveTcpListeners();

            foreach (IPEndPoint endPoint in ipEndPoints)
            {
                if (endPoint.Port == port)
                {
                    inUse = true;
                    break;
                }
            }

            return inUse;  // 返回true说明端口被占用
        }


        /// <summary>
        /// 记录所有控件的宽、高、位置、字体等信息
        /// </summary>
        /// <param name="cons"></param>
        public static void setTag(Control cons)
        {
            foreach (Control con in cons.Controls)
            {
                con.Tag = con.Width + ";" + con.Height + ";" + con.Left + ";" + con.Top + ";" + con.Font.Size + ";" + con.Name;
                if (con.Controls.Count > 0)
                {
                    setTag(con);
                }
            }
        }


        /// <summary>
        /// 根据比例，调整控件的大小、位置、字体大小
        /// </summary>
        /// <param name="ratio"></param>
        /// <param name="cons"></param>
        public static void setControls(int width, int height, float ratio, Control cons)
        {
            Console.WriteLine(width + "*" + height);

            //遍历窗体中的控件，重新设置控件的值
            foreach (Control con in cons.Controls)
            {
                //获取控件的Tag属性值，并分割后存储字符串数组
                if (con.Tag != null)
                {
                    string[] mytag = con.Tag.ToString().Split(new char[] { ';' });
                    //根据窗体缩放的比例确定控件的值
                    con.Width = Convert.ToInt32(Convert.ToSingle(mytag[0]) * ratio);  //宽度

                    con.Height = Convert.ToInt32(Convert.ToSingle(mytag[1]) * ratio); //高度

                    if (con.Name == "lstIP" || con.Name == "lstPost")
                        con.Height = (int)(con.Height * 1.2);

                    if (Convert.ToInt32(Convert.ToSingle(mytag[2]) * ratio) + con.Width <= width)
                        con.Left = Convert.ToInt32(Convert.ToSingle(mytag[2]) * ratio);   //左边距

                    if(con.Name == "picWhite")
                    {
                        con.Left = width - con.Width;
                    }

                    if (Convert.ToInt32(Convert.ToSingle(mytag[3]) * ratio) + con.Height <= height)
                        con.Top = Convert.ToInt32(Convert.ToSingle(mytag[3]) * ratio);    //顶边距

                    if(con.Name == "picShip")
                    {
                        con.Top = height - con.Height;
                    }
                    
                    Single currentSize = Convert.ToSingle(mytag[4]);
                    if (Convert.ToSingle(mytag[4]) * ratio > 0)
                        currentSize = Convert.ToSingle(mytag[4]) * ratio;  //字体大小
                    con.Font = new Font(con.Font.Name, currentSize, con.Font.Style, con.Font.Unit);
                    
                    if (con.Controls.Count > 0)
                    {
                        setControls(width, height, ratio, con);
                    }
                }
            }
        }
    }
}