?using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using Microsoft.Win32;

namespace 溫室控制程序
{
    public partial class Form_Main : Form
    {
        public Form_Main()
        {
            InitializeComponent();
        }

        //--------------------------------------------------------------------
        // 代理函數
        //--------------------------------------------------------------------
        delegate void SetTextCallBack(string s);
        //--------------------------------------------------------------------
        // 關閉窗體時提示確認
        //--------------------------------------------------------------------
        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            if (MessageBox.Show("您確定要退出系統嗎?", "確認", 
                MessageBoxButtons.YesNo, MessageBoxIcon.Question, 
                MessageBoxDefaultButton.Button2) == DialogResult.No)
            {
                e.Cancel = true;
            }
        }
        //--------------------------------------------------------------------
        // 獲取串口列表
        //--------------------------------------------------------------------
        public void GetComList()
        {
            RegistryKey keyCom = Registry.LocalMachine.OpenSubKey("Hardware\\DeviceMap\\SerialComm");
            if (keyCom != null)
            {
                string[] sSubKeys = keyCom.GetValueNames();
                comboBox1.Items.Clear();
                foreach (string sName in sSubKeys)
                {
                    string sValue = (string)keyCom.GetValue(sName);
                    comboBox1.Items.Add(sValue);
                }
            }
        }
        //--------------------------------------------------------------------
        // 退出系統
        //--------------------------------------------------------------------
        private void button_退出_Click(object sender, EventArgs e)
        {        
            this.Close();
        }
        //--------------------------------------------------------------------
        //打開串口
        //--------------------------------------------------------------------
        private void button_打開串口_Click(object sender, EventArgs e)
        {
            if (button_打開串口.Text == "打開串口")
            {
                if (serialPort1.IsOpen) serialPort1.Close();
                serialPort1.PortName = comboBox1.Text;
                try
                {
                    serialPort1.Open();
                    toolStripStatusLabel1.Text = comboBox1.Text + " 打開";
                    button_打開串口.Text = "關閉串口";
                }
                catch { toolStripStatusLabel1.Text = "端口打開錯誤!!!"; }
            }
            else
            {
                serialPort1.Close();
                toolStripStatusLabel1.Text = "端口關閉";
                button_打開串口.Text = "打開串口";
            }
        }
        //--------------------------------------------------------------------
        // 加載窗體時執行
        //--------------------------------------------------------------------
        private void Form_Main_Load(object sender, EventArgs e)
        {
            comboBox1.Items.Clear();
            GetComList(); 
            if (comboBox1.Items.Count != 0) comboBox1.SelectedIndex = 1;
            RegistryKey reg = Registry.LocalMachine.OpenSubKey("SOFTWARE\\溫室監控系統2010",true);
            if (reg == null) 
            {
                reg = Registry.LocalMachine.CreateSubKey("SOFTWARE\\溫室監控系統2010");
            }
            if (reg != null)
            {
                comboBox1.Text = (string)reg.GetValue("端口");
            }
        }
        //--------------------------------------------------------------------
        // 關閉窗體時將當前串口選項寫入注冊表
        //--------------------------------------------------------------------
        private void Form_Main_FormClosed(object sender, FormClosedEventArgs e)
        {
            if (serialPort1.IsOpen) serialPort1.Close();
            RegistryKey reg = Registry.LocalMachine.OpenSubKey("SOFTWARE\\溫室監控系統2010",true);
            if (reg != null) reg.SetValue("端口", comboBox1.Text);   
        }
        //--------------------------------------------------------------------
        // 噴灌按鈕操作
        //--------------------------------------------------------------------
        private void button_噴灌_Click(object sender, EventArgs e)
        {
            if (!serialPort1.IsOpen)
            { MessageBox.Show("串口未打開,控制命令無法發送!", "提示"); return; }
            if (button_噴灌.Text == "噴灌")
            {
                //發送控制指令 開啟繼電器
                serialPort1.WriteLine("$PUMP_OPEN");
                button_噴灌.Text = "停止噴灌";
            }
            else
            {
                //發送控制指令 關閉繼電器
                serialPort1.WriteLine("$PUMP_CLOSE");
                button_噴灌.Text = "噴灌";
            }
        }
        //--------------------------------------------------------------------
        // 通風按鈕操作
        //--------------------------------------------------------------------
        private void button_通風_Click(object sender, EventArgs e)
        {
            if (!serialPort1.IsOpen)
            { MessageBox.Show("串口未打開,控制命令無法發送!", "提示"); return; }
            if (button_通風.Text == "通風")
            {
                //發送控制指令 開啟電機1
                serialPort1.WriteLine("$WIND_OPEN");
                button_通風.Text = "停止通風";
            }
            else
            {
                //發送控制指令 關閉電機1
                serialPort1.WriteLine("$WIND_CLOSE");
                button_通風.Text = "通風";
            }
        }
        //--------------------------------------------------------------------
        // 采光按鈕操作
        //--------------------------------------------------------------------
        private void button_采光_Click(object sender, EventArgs e)
        {
            if (!serialPort1.IsOpen)
            { MessageBox.Show("串口未打開,控制命令無法發送!", "提示"); return; }
            if (button_采光.Text == "采光")
            {
                //發送控制指令 開啟電機2
                serialPort1.WriteLine("$LIGHT_OPEN");
                button_采光.Text = "停止采光";
            }
            else
            {
                //發送控制指令 關閉電機2
                serialPort1.WriteLine("$LIGHT_CLOSE");
                button_采光.Text = "采光";
            }
        }
        //--------------------------------------------------------------------
        // 顯示代理函數
        //--------------------------------------------------------------------
        private void SetText(string s)
        {
            if (label_溫度.InvokeRequired)
            {
                SetTextCallBack d = new SetTextCallBack(SetText);
                Invoke(d, new object[] { s });
            }
            else
            {
                label_溫度.Text = s.Trim() + " ℃";
                label_溫度.Refresh();
            }
        }
        //--------------------------------------------------------------------
        // 串口接收溫度數據并通過代理程序顯示
        //--------------------------------------------------------------------
        private void serialPort1_DataReceived(object sender, System.IO.Ports.SerialDataReceivedEventArgs e)
        {
            try { SetText(serialPort1.ReadLine()); } catch { }
        }
    }
}