using System;
using System.Globalization;

namespace Dongke.WinForm.Controls.InvoiceLayout.DrawBarcode
{
    /// <summary>
    /// 条码图片显示方式
    /// </summary>
    public enum BarcodeShowType
    {
        /// <summary>
        /// 原图
        /// </summary>
        Original = 0,
        /// <summary>
        /// 居中显示
        /// </summary>
        Show,
        /// <summary>
        /// 缩放
        /// </summary>
        Zoom,
    }

    /// <summary>
    /// 条码打印余白
    /// </summary>
    [Serializable]
    public struct BarcodeMargin
    {
        private bool _all;
        private int _top;
        private int _left;
        private int _right;
        private int _bottom;

        /// <summary>
        /// 空
        /// </summary>
        public static readonly BarcodeMargin Empty = new BarcodeMargin(0);

        /// <summary>
        /// 相同值
        /// </summary>
        public int All
        {
            get
            {
                return (this._all ? this._top : -1);
            }
            set
            {
                if (value < 0)
                {
                    return;
                }
                if (!this._all || this._top != value)
                {
                    this._all = true;
                    this._bottom = value;
                    this._right = value;
                    this._left = value;
                    this._top = value;
                }
            }
        }

        /// <summary>
        /// 底边余白
        /// </summary>
        public int Bottom
        {
            get
            {
                //if (this._all)
                //{
                //    return this._top;
                //}
                return this._bottom;
            }
            set
            {
                if (value < 0)
                {
                    return;
                }
                if (this._bottom != value)
                {
                    this._bottom = value;
                    this.SetAll();
                }
            }
        }

        /// <summary>
        /// 左侧余白
        /// </summary>
        public int Left
        {
            get
            {
                //if (this._all)
                //{
                //    return this._top;
                //}
                return this._left;
            }
            set
            {
                if (value < 0)
                {
                    return;
                }
                if (this._left != value)
                {
                    this._left = value;
                    this.SetAll();
                }
            }
        }

        /// <summary>
        /// 右余白
        /// </summary>
        public int Right
        {
            get
            {
                //if (this._all)
                //{
                //    return this._top;
                //}
                return this._right;
            }
            set
            {
                if (value < 0)
                {
                    return;
                }
                if (this._right != value)
                {
                    this._right = value;
                    this.SetAll();
                }
            }
        }

        /// <summary>
        /// 顶边余白
        /// </summary>
        public int Top
        {
            get
            {
                return this._top;
            }
            set
            {
                if (value < 0)
                {
                    return;
                }
                if (this._top != value)
                {
                    this._top = value;
                    this.SetAll();
                }
            }
        }

        /// <summary>
        /// 横向
        /// </summary>
        public int Horizontal
        {
            get
            {
                return this.Left + this.Right;
            }
        }

        /// <summary>
        /// 纵向
        /// </summary>
        public int Vertical
        {
            get
            {
                return this.Top + this.Bottom;
            }
        }

        /// <summary>
        /// 条码打印余白
        /// </summary>
        /// <param name="all"></param>
        public BarcodeMargin(int all)
        {
            //if (all < 0)
            //{
            //    all = 0;
            //}
            this._all = true;
            this._bottom = all;
            this._right = all;
            this._left = all;
            this._top = all;
        }

        /// <summary>
        /// 条码打印余白
        /// </summary>
        /// <param name="left"></param>
        /// <param name="top"></param>
        /// <param name="right"></param>
        /// <param name="bottom"></param>
        public BarcodeMargin(int left, int top, int right, int bottom)
        {
            //if (left < 0)
            //{
            //    left = 0;
            //}
            //if (top < 0)
            //{
            //    top = 0;
            //}
            //if (right < 0)
            //{
            //    right = 0;
            //}
            //if (bottom < 0)
            //{
            //    bottom = 0;
            //}
            this._top = top;
            this._left = left;
            this._right = right;
            this._bottom = bottom;
            this._all = (this._top == this._left && this._top == this._right && this._top == this._bottom);
        }

        private void SetAll()
        {
            this._all = (this._top == this._left && this._top == this._right && this._top == this._bottom);
        }

        /// <summary>
        /// ToString
        /// </summary>
        /// <returns></returns>
        public override string ToString()
        {
            return string.Concat(new string[]
            {
                "Margin={Left=",
                this.Left.ToString(CultureInfo.CurrentCulture),
                ",Top=",
                this.Top.ToString(CultureInfo.CurrentCulture),
                ",Right=",
                this.Right.ToString(CultureInfo.CurrentCulture),
                ",Bottom=",
                this.Bottom.ToString(CultureInfo.CurrentCulture),
                "}"
            });
        }
    }

}