using System;
using System.ComponentModel;
using System.Drawing.Design;

namespace DevComponents.DotNetBar.Charts.Style
{
    /// <summary>
    /// Represents the visual style of an Hilo Bar Series (OHLC)
    /// </summary>
    [ToolboxItem(false), DesignTimeVisible(false)]
    [TypeConverter(typeof(VisualStylesConverter))]
    public class ChartHiLoBarVisualStyle : BaseVisualStyle
    {
        #region Private variables

        private HiLoBarSegmentStyle _DefaultSegmentStyle;
        private HiLoBarSegmentStyle _AlternateSegmentStyle;

        private Tbool _ShowWhiskerCaps = Tbool.NotSet;
        private Tbool _UseAlternateSegmentStyle = Tbool.NotSet;

        #endregion

        #region Public properties

        #region AlternateSegmentStyle

        /// <summary>
        /// Gets or sets the Alternate Style for the Ohlc bar.
        /// </summary>
        [Description("Indicates the Alternate Style for the Ohlc bar.")]
        [DesignerSerializationVisibility(DesignerSerializationVisibility.Content)]
        public HiLoBarSegmentStyle AlternateSegmentStyle
        {
            get
            {
                if (_AlternateSegmentStyle == null)
                {
                    _AlternateSegmentStyle = HiLoBarSegmentStyle.Empty;

                    UpdateChangeHandler(null, _AlternateSegmentStyle);
                }

                return (_AlternateSegmentStyle);
            }

            set
            {
                if (_AlternateSegmentStyle != value)
                {
                    UpdateChangeHandler(_AlternateSegmentStyle, value);

                    _AlternateSegmentStyle = value;

                    OnPropertyChangedEx("AlternateSegmentStyle", VisualChangeType.Layout);
                }
            }
        }

        #endregion

        #region DefaultSegmentStyle

        /// <summary>
        /// Gets or sets the Default Style for the Ohlc bar.
        /// </summary>
        [Description("Indicates the Default Style for the Ohlc bar.")]
        [DesignerSerializationVisibility(DesignerSerializationVisibility.Content)]
        public HiLoBarSegmentStyle DefaultSegmentStyle
        {
            get
            {
                if (_DefaultSegmentStyle == null)
                {
                    _DefaultSegmentStyle = HiLoBarSegmentStyle.Empty;

                    UpdateChangeHandler(null, _DefaultSegmentStyle);
                }

                return (_DefaultSegmentStyle);
            }

            set
            {
                if (_DefaultSegmentStyle != value)
                {
                    UpdateChangeHandler(_DefaultSegmentStyle, value);

                    _DefaultSegmentStyle = value;

                    OnPropertyChangedEx("DefaultSegmentStyle", VisualChangeType.Layout);
                }
            }
        }

        #endregion

        #region ShowWhiskerCaps

        /// <summary>
        /// Gets or sets whether Box/Candle whisker caps are displayed.
        /// </summary>
        [DefaultValue(Tbool.NotSet), Category("Appearance")]
        [Description("Indicates whether Box/Candle whisker caps are displayed.")]
        public Tbool ShowWhiskerCaps
        {
            get { return (_ShowWhiskerCaps); }

            set
            {
                if (value != _ShowWhiskerCaps)
                {
                    _ShowWhiskerCaps = value;

                    OnPropertyChangedEx("ShowWhiskerCaps", VisualChangeType.Render);
                }
            }
        }

        #endregion

        #region UseAlternateSegmentStyle

        /// <summary>
        /// Gets or sets whether Box/Candle whisker caps are displayed.
        /// </summary>
        [DefaultValue(Tbool.NotSet), Category("Appearance")]
        [Description("Indicates whether Box/Candle whisker caps are displayed.")]
        public Tbool UseAlternateSegmentStyle
        {
            get { return (_UseAlternateSegmentStyle); }

            set
            {
                if (value != _UseAlternateSegmentStyle)
                {
                    _UseAlternateSegmentStyle = value;

                    OnPropertyChangedEx("UseAlternateSegmentStyle", VisualChangeType.Render);
                }
            }
        }

        #endregion

        #region IsEmpty

        /// <summary>
        /// Gets whether the style is logically Empty.
        /// </summary>
        [Browsable(false)]
        [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
        [Description("Gets whether the style is logically Empty.")]
        public override bool IsEmpty
        {
            get
            {
                return ((_AlternateSegmentStyle == null || _AlternateSegmentStyle.IsEmpty == true) &&
                    (_DefaultSegmentStyle == null || _DefaultSegmentStyle.IsEmpty) &&
                    (_ShowWhiskerCaps == Tbool.NotSet));
            }
        }

        #endregion

        #endregion

        #region ApplyStyle

        /// <summary>
        /// Applies the style to instance of this style.
        /// </summary>
        /// <param name="style">Style to apply.</param>
        public void ApplyStyle(ChartHiLoBarVisualStyle style)
        {
            if (style != null)
            {
                base.ApplyStyle(style);

                if (style._AlternateSegmentStyle != null && style._AlternateSegmentStyle.IsEmpty == false)
                    AlternateSegmentStyle.ApplyStyle(style._AlternateSegmentStyle);

                if (style._DefaultSegmentStyle != null && style._DefaultSegmentStyle.IsEmpty == false)
                    DefaultSegmentStyle.ApplyStyle(style._DefaultSegmentStyle);

                if (style.ShowWhiskerCaps != Tbool.NotSet)
                    ShowWhiskerCaps = style.ShowWhiskerCaps;

                if (style.UseAlternateSegmentStyle != Tbool.NotSet)
                    UseAlternateSegmentStyle = style.UseAlternateSegmentStyle;
            }
        }

        #endregion

        #region Copy

        /// <summary>
        /// Returns the copy of the style.
        /// </summary>
        /// <returns>Copy of the style.</returns>
        public new ChartHiLoBarVisualStyle Copy()
        {
            ChartHiLoBarVisualStyle style = new ChartHiLoBarVisualStyle();

            CopyTo(style);

            return (style);
        }

        #endregion

        #region CopyTo

        /// <summary>
        /// Returns the copy of the style.
        /// </summary>
        /// <returns>Copy of the style.</returns>
        public void CopyTo(ChartHiLoBarVisualStyle style)
        {
            base.CopyTo(style);

            style.AlternateSegmentStyle = (_AlternateSegmentStyle != null) ? _AlternateSegmentStyle.Copy() : null;
            style.DefaultSegmentStyle = (_DefaultSegmentStyle != null) ? _DefaultSegmentStyle.Copy() : null;

            style.ShowWhiskerCaps = _ShowWhiskerCaps;
            style.UseAlternateSegmentStyle = _UseAlternateSegmentStyle;
        }

        #endregion

        #region GetSerialData

        internal override SerialElementCollection GetSerialData(string serialName)
        {
            SerialElementCollection sec = new SerialElementCollection();

            if (serialName != null)
            {
                if (serialName.Equals("") == true)
                    serialName = "ChartHiLoBarVisualStyle";

                sec.AddStartElement(serialName);
            }

            if (_DefaultSegmentStyle != null && _DefaultSegmentStyle.IsEmpty == false)
                sec.AddElement(_DefaultSegmentStyle.GetSerialData("DefaultSegmentStyle"));

            if (_AlternateSegmentStyle != null && _AlternateSegmentStyle.IsEmpty == false)
                sec.AddElement(_AlternateSegmentStyle.GetSerialData("AlternateSegmentStyle"));

            sec.AddValue("ShowWhiskerCaps", ShowWhiskerCaps, Tbool.NotSet);
            sec.AddValue("UseAlternateSegmentStyle", UseAlternateSegmentStyle, Tbool.NotSet);

            sec.AddElement(base.GetSerialData(null));

            if (serialName != null)
                sec.AddEndElement(serialName);

            return (sec);
        }

        #endregion

        #region PutSerialData

        #region ProcessValue

        internal override void ProcessValue(SerialElement se)
        {
            switch (se.Name)
            {
                case "ShowWhiskerCaps":
                    ShowWhiskerCaps = (Tbool)se.GetValueEnum(typeof(Tbool));
                    break;

                case "UseAlternateSegmentStyle":
                    UseAlternateSegmentStyle = (Tbool)se.GetValueEnum(typeof(Tbool));
                    break;

                default:
                    base.ProcessValue(se);
                    break;
            }
        }

        #endregion

        #region ProcessCollection

        internal override void ProcessCollection(SerialElement se)
        {
            SerialElementCollection sec = se.Sec;

            switch (se.Name)
            {
                case "DefaultSegmentStyle":
                    sec.PutSerialData(DefaultSegmentStyle);
                    break;

                case "AlternateSegmentStyle":
                    sec.PutSerialData(AlternateSegmentStyle);
                    break;

                default:
                    base.ProcessCollection(se);
                    break;
            }
        }

        #endregion

        #endregion

        #region IDisposable

        /// <summary>
        /// Dispose
        /// </summary>
        public override void Dispose()
        {
            AlternateSegmentStyle = null;
            DefaultSegmentStyle = null;

            base.Dispose();
        }

        #endregion
    }
}