using System;
using System.ComponentModel;
using System.Drawing;
using System.Drawing.Design;
using System.Globalization;
using GeoSigmaDrawLib;

namespace GeoSigma.SigmaDrawerStyle
{
    /// <summary>
    /// 长度单位转换类
    /// </summary>
    public class UnitConverter : StringConverter
    {
        public static readonly string[] Units = new string[] { " ", "公里","千米", "米", "km", "m", " (公里)", " (千米)", " (米)", " (km)", " (m)" };

        public override bool GetStandardValuesSupported(ITypeDescriptorContext context)
        {
            return true;
        }

        public override StandardValuesCollection GetStandardValues(ITypeDescriptorContext context)
        {
            return new StandardValuesCollection(Units);
        }

        public override bool GetStandardValuesExclusive(ITypeDescriptorContext context)
        {
            return false;
        }

        public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)
        {
            if (destinationType == typeof(int))
            {
                if (value is string v)
                {
                    return Array.IndexOf(Units, v);
                }
            }
            return base.ConvertTo(context, culture, value, destinationType);
        }

        public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
        {
            if (value is int v)
            {
                if (v < 0) // 新建比例尺时是 -1
                {
                    v = 0;
                }

                if (v < Units.Length)
                {
                    return Units[v];
                }
            }

            return base.ConvertFrom(context, culture, value);
        }
    }

    public interface IProportionPropertyChange
    {
        void ChangeScale(double scale);
        void ChangeNumber(int number);
        void ChangeShowMode(int mode);
        void ChangeUnit(int unit);
        void ChangeColor(int r, int g, int b);
        void ChangeTextScale(double scale);
        void ChangeAlign(int align);
        void ChangeTextHeight(double height);
        void ChangeTextWidth(double width);
        void ChangeTextHeightAlone(int alone);
        void ChangeCoordinate(double x, double y);
        void ChangeScaleHeight(double height);
    }

    public class ProportionProperty
    {
        public enum SHOWMODE
        {
            普通式,
            现代式,
            流行式,
        }

        public enum ALONE
        {
            否,
            是,
        }

        public enum ALIGN
        {
            左对齐,
            水平居中,
            右对齐,
        }
        //private static List<string>  UnitsValues = new List<string>
        //{
        //    "公里", "千米", "米", " (公里)"," (千米)"," (米)"
        //};
        [Browsable(false)]
        public IProportionPropertyChange PropertyParent { get { return iChange; } set { iChange = value; } }

        /// <summary>
        /// Initializes a new instance of the <see cref="ProportionProperty"/> class.
        /// </summary>
        /// <param name="iChange">iChange</param>
        public ProportionProperty(IProportionPropertyChange iChange)
        {
            this.iChange = iChange;
            scale = 100;
            number = 5;
            textScale = 1;
            align = ALIGN.水平居中;
            textHeightAlone = ALONE.否;
            color = Color.Black;
            showMode = SHOWMODE.流行式;
        }

        public void FillData(ref ProportionData data)
        {
            data.x = xCoord;
            data.y = yCoord;

            data.ScaleLength = scale;
            data.ScaleHeight = scaleHeight;
            data.ViewMode = (int)showMode;
            UnitConverter converter = new UnitConverter();
            data.Unit = (int)converter.ConvertTo(proportionUnit, typeof(int));
            data.num = number;
            data.ColorR = color.R;
            data.ColorG = color.G;
            data.ColorB = color.B;

            data.TextScale = textScale;
            data.TextAlign = (int)align;
            data.TextHeight = textHeight;
            data.TextWidth = textWidth;
        }

        private IProportionPropertyChange iChange;
        private double xCoord;
        private double yCoord;
        private double scale; //比例格式为 "1:xxxxx"
        private double scaleHeight;
        private Color color;
        private SHOWMODE showMode;
        private string  proportionUnit;
        private int   number;  //个数
        private double textScale; //文本比例
        private ALIGN align;//水平对齐:[水平居中]、左对齐、右对齐。
        private double textHeight;  //文字高度
        private double textWidth;   //文字宽度
        private ALONE textHeightAlone;  //是否可以单独改变高度

        public void SetData(GeoSigmaDrawLib.ProportionData data)
        {
            xCoord = data.x;
            yCoord = data.y;

            scale = (double)data.ScaleLength;
            scaleHeight = (double)data.ScaleHeight;
            showMode = (SHOWMODE)data.ViewMode;
            UnitConverter converter = new UnitConverter();
            proportionUnit = (string)converter.ConvertFrom(data.Unit);
            number = data.num;
            color = Color.FromArgb(data.ColorR, data.ColorG, data.ColorB);
            textScale = data.TextScale;
            align = (ALIGN)data.TextAlign;
            textHeight = (int)data.TextHeight;
            textWidth = (int)data.TextWidth;
        }
        public void SetXY(double x, double y)
        {
            this.xCoord = x;
            this.yCoord = y;
        }

        [Category("\t坐标"), DisplayName("\t\t\t\t\t\tX"), Browsable(false)]
        public double XCoord
        {
            get => xCoord;
            set
            {
                xCoord = value;
                iChange.ChangeCoordinate(xCoord, yCoord);
            }
        }
        [Category("\t坐标"), DisplayName("\t\t\t\t\t\tY"), Browsable(false)]
        public double YCoord
        {
            get => yCoord;
            set
            {
                yCoord = value;
                iChange.ChangeCoordinate(xCoord, yCoord);
            }
         }
        [Category("\t基本属性"), DisplayName("\t\t\t\t\t\t刻度间隔")]
        public double Scale
        {
            get => scale;
            set
            {
                scale = value;
                iChange.ChangeScale(scale);
                //if (value.Length < 3)
                //{
                //    MessageBox.Show("比例不合法,请重新输入。", "提示");
                //}
                //else
                //{
                //    if (value[0] != '1' || value[1] != ':')
                //    {
                //        MessageBox.Show("比例不合法,请重新输入。", "提示");
                //    }
                //    else
                //    {
                //        string scaleStr = value.Substring(2);
                //        int scale = 0;
                //        if (!int.TryParse(scaleStr, out scale))
                //        {
                //            MessageBox.Show("比例不合法,请重新输入。", "提示");
                //        }
                //        else
                //        {
                //            scaleString = value;
                //            iChange.ChangeScale(scale);
                //        }
                //    }
                //}
            }
        }
        [Category("\t基本属性"), DisplayName("\t\t\t\t\t\t显示模式")]
        public SHOWMODE ShowMode1
        {
            get => showMode;
            set
            {
                showMode = value;
                iChange.ChangeShowMode((int)showMode);
            }
        }

        [Category("\t基本属性"), TypeConverter(typeof(UnitConverter)), DisplayName("\t\t\t\t\t\t单位")]
        public string ProportionUnit
        {
            get => proportionUnit;
            set
            {
                proportionUnit = value;
                int type = Array.IndexOf(UnitConverter.Units, value);
                if (type == -1)
                {
                    type = 0;
                }
                iChange.ChangeUnit(type);
            }
        }
        [Category("\t基本属性"), DisplayName("\t\t\t\t\t\t高度")]
        public double ScaleHeight
        {
            get => scaleHeight;
            set
            {
                scaleHeight = value;
                iChange.ChangeScaleHeight(scaleHeight);
            }
        }

        [Category("\t基本属性"), DisplayName("\t\t\t\t\t\t个数")]
        public int Number
        { get => number;
          set
          {
                 number = value;
                 iChange.ChangeNumber(number);
          }
        }
        [Category("\t基本属性"), DisplayName("\t\t\t\t\t\t颜色")]
        [Editor(typeof(PropertyEditorColor), typeof(UITypeEditor))]
        [TypeConverter(typeof(PropertyColorIndicatorConvert))]
        public Color Color
        {
            get => color;
            set
            {
                color = value;
                iChange.ChangeColor(color.R, color.G, color.B);
            }
        }
        [Category("\t文本属性"), DisplayName("\t\t\t\t\t\t文本比例")]
        public double TextScale
        {
            get => textScale;
            set
            {
                textScale = value;
                iChange.ChangeTextScale(textScale);
            }
        }
        [Category("\t文本属性"), DisplayName("\t\t\t\t\t\t水平对齐")]
        public ALIGN Aligin
        {
            get => align;
            set
            {
                align = value;
                iChange.ChangeAlign((int)align);
            }
        }
        [Category("\t文本属性"), DisplayName("\t\t\t\t\t\t文字高度")]
        public double TextHeight
        {
            get => textHeight;
            set
            {
                textHeight = value;
                textWidth = textHeight * 0.4;
                iChange.ChangeTextHeight(textHeight);
            }
        }
        [Category("\t文本属性"), DisplayName("\t\t\t\t\t\t文字宽度"),Browsable(false)]
        public double TextWidth
        {
            get => TextHeight * 0.4;
            set
            {
                textWidth = value;
                iChange.ChangeTextWidth(textWidth);
            }
        }

        [Category("\t文本属性"), DisplayName("\t\t\t\t\t\t宽度可单独调整"), Browsable(false)]
        public ALONE TextHeightAlone
        {
            get => textHeightAlone;
            set
            {
                textHeightAlone = value;
                if (value == ALONE.是)
                {
                    iChange.ChangeTextHeightAlone(1);
                }
                else
                {
                    iChange.ChangeTextHeightAlone(0);
                }
            }
        }
    }
}