using System.Drawing;
using GeoSigma.SigmaDrawerStyle;

namespace GeoSigma.SigmaDrawerElement
{
    /// <summary>
    /// 提供 WellLayerStyle 与 WellFontEx 之间的字体信息转换方法
    /// </summary>
    public class LayerStyleHelper
    {
        /// <summary>
        /// 从指定的样式对象提取字体信息
        /// </summary>
        /// <param name="style">层样式对象</param>
        /// <returns>表示字体样式的对象</returns>
        public static WellFontEx GetFontEx(WellLayerStyle style)
        {
            if (style == null)
            {
                return null;
            }

            var font = new Font(style.TextFace, style.TextSize);
            var fontEx = WellFontEx.FromFont(font);
            fontEx.FontColor = ColorTranslator2.FromHtml(style.TextColor);
            return fontEx;
        }

        /// <summary>
        /// 根据指定的对象，设置样式中的字体相关属性
        /// </summary>
        /// <param name="style">层样式对象</param>
        /// <param name="fontEx">字体样式对象</param>
        public static void SetFontEx(WellLayerStyle style, WellFontEx fontEx)
        {
            if (style == null || fontEx == null)
            {
                return;
            }

            var font = WellFontEx.ToFont(fontEx);
            style.TextFace = fontEx.FontName;
            style.TextSize = font.Size;
            style.TextColor = ColorTranslator2.ToHtml(fontEx.FontColor);
        }

        /// <summary>
        /// 从指定样式对象提取边框线信息
        /// </summary>
        /// <param name="style">样式对象</param>
        /// <returns>边框线对象</returns>
        public static WellLineStyle GetWellLineStyle(WellLayerStyle style)
        {
            return new WellLineStyle()
            {
                Width = style.BorderWidth,
                Color = ColorTranslator2.FromHtml(style.BorderColor),
                Style = string.Empty,
            };
        }

        /// <summary>
        /// 根据指定的对象，设置样式中的边框线相关属性
        /// </summary>
        /// <param name="style">层样式对象</param>
        /// <param name="lineStyle">边框线</param>
        public static void SetWellLineStyle(WellLayerStyle style, WellLineStyle lineStyle)
        {
            style.BorderWidth = lineStyle.Width;
            style.BorderColor = ColorTranslator2.ToHtml(lineStyle.Color);
        }
    }
}