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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Xml.Serialization;
using Tango.BL.Entities;
using Tango.MachineStudio.Technician.Editors;
using Tango.MachineStudio.Technician.Helpers;
using Tango.SharedUI.Helpers;

namespace Tango.MachineStudio.Technician.TechItems
{
    /// <summary>
    /// Represents a multi channel real-time graph item.
    /// </summary>
    /// <seealso cref="Tango.MachineStudio.Technician.TechItems.TechItem" />
    [TechItem(5)]
    public class MultiGraphItem : TechItem
    {
        private TechMonitor _techMonitor;
        /// <summary>
        /// Gets or sets the db tech monitor.
        /// </summary>
        [XmlIgnore]
        public TechMonitor TechMonitor
        {
            get { return _techMonitor; }
            set
            {
                TechMonitor old = _techMonitor;

                _techMonitor = value;
                RaisePropertyChangedAuto();

                if (_techMonitor != old && Editor != null)
                {
                    Editor.InnerGraph.InnerGraph.MaxPoints = GraphsHelper.GetMaxPoints(TechMonitor.PointsPerFrame);
                    Editor.InnerGraph.InvalidateGraph();
                }

                ItemGuid = value != null ? value.Guid : null;

                TechName = _techMonitor != null ? _techMonitor.Description : null;
            }
        }

        /// <summary>
        /// Gets or sets the item editor.
        /// </summary>
        [XmlIgnore]
        public MultiGraphElementEditor Editor { get; set; }

        /// <summary>
        /// Initializes a new instance of the <see cref="MultiGraphItem"/> class.
        /// </summary>
        public MultiGraphItem() : base()
        {
            Name = "Multi Channel Graph";
            Description = "Multi channel real-time graph";
            Image = ResourceHelper.GetImageFromResources("Images/multi-graph.png");
        }

        /// <summary>
        /// Initializes a new instance of the <see cref="MultiGraphItem"/> class.
        /// </summary>
        /// <param name="techMonitor">The db tech monitor.</param>
        public MultiGraphItem(TechMonitor techMonitor) : this()
        {
            TechMonitor = techMonitor;
        }

        /// <summary>
        /// Clones this instance.
        /// </summary>
        /// <returns></returns>
        public override TechItem Clone()
        {
            MultiGraphItem cloned = base.Clone() as MultiGraphItem;
            cloned.TechMonitor = TechMonitor;
            return cloned;
        }
    }
}