using System;
using System.Drawing;
using System.IO;
using System.Reflection;
using System.Windows.Forms;

namespace Mesnac.Controls.Feeding
{
    /// <summary>
    /// 传送带
    /// </summary>
    [ToolboxBitmap(typeof(TransmissionBelt), "ICONS.TransmissionBelt.bmp")]//新添加的代码
    public partial class TransmissionBelt : FeedingControl
    {
        bool bNewPic = false;
        bool bSreamPic = false;
        string _statusName;
        private string _sensorStatusName;
        private string _csdMotorStatusName;

        public string StatusName
        {
            get
            {
                return _statusName;
            }
            set
            {
                _statusName = value;
            }
        }
        /// <summary>
        /// 传送带光电开关状态动画属性
        /// </summary>
        public string SensorStatusName
        {
            get { return _sensorStatusName; }
            set { _sensorStatusName = value; }
        }
        /// <summary>
        /// 传送带电机状态动画属性
        /// </summary>
        public string CsdMotorStatusName
        {
            get { return _csdMotorStatusName; }
            set { _csdMotorStatusName = value; }
        }

        public enum Statuses
        {
            //csdNull = 0, csdWeight = 1, csdFull = 2, csdUnload = 3, csdAlarm = 4
            csdNull = 0, csdWeight = 1, csdFull = 2, csdUnload = 3
        }

        Statuses _status;
        private OnOffStatuses _sensorStatus;
        private OnOffStatuses _csdMotorStatus;

        string[] sImages;
        public TransmissionBelt():base()
        {
            InitializeComponent();

            Init();

            ReloadStream();

            this.Reload();
        }

        protected override void Init()
        {
            base.Init();
            _imageStream = null;

            sImages = new string[4];
            sImages[ 0 ] = "Mesnac.Controls.Feeding.Resources.csd.csd_null.png";//
            sImages[ 1 ] = "Mesnac.Controls.Feeding.Resources.csd.csd_weight.gif";//
            sImages[ 2 ] = "Mesnac.Controls.Feeding.Resources.csd.csd_full.png";//
            sImages[ 3 ] = "Mesnac.Controls.Feeding.Resources.csd.csd_unload.gif";//

            _status = Statuses.csdNull;
        }

        private void ReloadStream()
        {
            //CloseStream();
            int nIndex = (int)_status;
            _imageStream = _assembly.GetManifestResourceStream(sImages[nIndex]);
        }

        public Statuses Status
        {
            get
            {
                return _status;
            }
            set
            {
                if (bFirstCreated == true)
                {
                    bFirstCreated = false;
                }

                //if (_status != value &&(this.Size.Width != 150 || this.Size.Height != 150)  )
                if ( _status != value )
                {
                    bSreamPic = true;
                    if (this.DesignMode == true)
                    {
                        bNewPic = true;
                    }
                }
                if ( (int)value < 0 )
                {
                    _status = (Statuses)0;
                }
                else if ( (int)value > 3 )
                {
                    _status = (Statuses)3;
                }
                else
                {
                    _status = value;
                }
                if (bSreamPic)
                {
                    ReloadStream();
                    this.Reload();
                }
            }
        }

        /// <summary>
        /// 光电开关状态
        /// </summary>
        public OnOffStatuses SensorStatus
        {
            get { return this._sensorStatus; }
            set 
            {
                if ((int)value > 1)
                {
                    this._sensorStatus = OnOffStatuses.On;
                }
                else if ((int)value < 0)
                {
                    this._sensorStatus = OnOffStatuses.Off;
                }
                else
                {
                    this._sensorStatus = value;
                }

                this.UpdateStatus();
            }
        }

        /// <summary>
        /// 传输带电机状态
        /// </summary>
        public OnOffStatuses CsdMotorStatus
        {
            get { return _csdMotorStatus; }
            set 
            {
                bool flag = false;
                if (this._csdMotorStatus != value)
                    flag = true;
                if ((int)value > 1)
                {
                    this._csdMotorStatus = OnOffStatuses.On;
                }
                else if ((int)value < 0)
                {
                    this._csdMotorStatus = OnOffStatuses.Off;
                }
                else
                {
                    this._csdMotorStatus = value;
                }
                if (flag)
                    this.UpdateStatus();
            }
        }

        /// <summary>
        /// 更新传送带状态
        /// </summary>
        private void UpdateStatus()
        {
            if (this._sensorStatus == OnOffStatuses.On && this._csdMotorStatus == OnOffStatuses.On)
            {
                this._status = Statuses.csdUnload;
            }
            else if (this._sensorStatus == OnOffStatuses.Off && this._csdMotorStatus == OnOffStatuses.On)
            {
                this._status = Statuses.csdWeight;
            }
            else if (this._sensorStatus == OnOffStatuses.On && this._csdMotorStatus == OnOffStatuses.Off)
            {
                this.Status = Statuses.csdFull;
            }
            else if (this._sensorStatus == OnOffStatuses.Off && this._csdMotorStatus == OnOffStatuses.Off)
            {
                this.Status = Statuses.csdNull;
            }
            ReloadStream();
            this.Reload();
        }

        private void Reload()
        {
            if (_imageStream != null)
            {
                Image img = Image.FromStream(_imageStream);
                if (bNewPic == true)
                {
                    //this.Size = img.Size;
                    this.Size = new System.Drawing.Size(98, 54);
                    bNewPic = false;
                }
                this.pictureBox1.Image = img;
                this.pictureBox1.Refresh();
            }
        }

        private void TransmissionBelt_Load(object sender, EventArgs e)
        {
            if (bFirstCreated == true && this.DesignMode == true)
            {
                bNewPic = true;
                bFirstCreated = false;
            }

        }

    }
}