MTP2.0_CSharp/Muchinfo.Common/Fx4.0/Muchinfo.ChartClient/MuchInfo.Chart/Easychart.Finance/IndexFormula.Finance/FontMapper.cs

namespace IndexFormula.Finance
{
    using System;
    using System.ComponentModel;
    using System.Drawing;
    using System.Drawing.Design;
    using System.Xml.Serialization;

    [TypeConverter(typeof(ExpandableObjectConverter)), Editor(typeof(FontMapperEditor), typeof(UITypeEditor))]
    public class FontMapper
    {
        private StringAlignment alignment;
        private StringAlignment lineAlignment;
        private BrushMapper textBrush;
        private Font textFont;

        public FontMapper() : this("Verdana", 10f)
        {
        }

        public FontMapper(string familyName, float emSize)
        {
            this.textBrush = new BrushMapper();
            this.alignment = StringAlignment.Center;
            this.lineAlignment = StringAlignment.Center;
            this.textFont = new Font(familyName, emSize);
        }

        public FontMapper Clone()
        {
            FontMapper mapper = new FontMapper(this.textFont.FontFamily.Name, this.textFont.Size);
            mapper.textBrush = this.textBrush.Clone();
            mapper.alignment = this.alignment;
            mapper.lineAlignment = this.lineAlignment;
            return mapper;
        }

        public void DrawString(string s, Graphics g, RectangleF Rect)
        {
            g.DrawString(s, this.textFont, this.textBrush.GetBrush(Rect), Rect, this.GetStringFormat());
        }

        private StringFormat GetStringFormat()
        {
            StringFormat format = new StringFormat();
            format.Alignment = this.alignment;
            format.LineAlignment = this.lineAlignment;
            return format;
        }

        public RectangleF GetTextBackRect(string s, Graphics g, RectangleF Rect)
        {
            if (g != null)
            {
                SizeF size = g.MeasureString(s, this.textFont, Rect.Size, this.GetStringFormat());
                RectangleF ef2 = new RectangleF(Rect.Location, size);
                if (this.alignment == StringAlignment.Center)
                {
                    ef2.X += (Rect.Width - ef2.Width) / 2f;
                }
                else if (this.alignment == StringAlignment.Far)
                {
                    ef2.X += Rect.Width - ef2.Width;
                }
                if (this.lineAlignment == StringAlignment.Center)
                {
                    ef2.Y += (Rect.Height - ef2.Height) / 2f;
                    return ef2;
                }
                if (this.lineAlignment == StringAlignment.Far)
                {
                    ef2.Y += Rect.Height - ef2.Height;
                }
                return ef2;
            }
            return RectangleF.Empty;
        }

        public SizeF Measure(Graphics g, string s)
        {
            return this.Measure(g, s, 0x3e8);
        }

        public SizeF Measure(Graphics g, string s, int w)
        {
            if (g != null)
            {
                return g.MeasureString(s, this.textFont, w, this.GetStringFormat());
            }
            return SizeF.Empty;
        }

        public bool ShouldSerializeTextBrush()
        {
            return BrushMapper.NotDefault(this.TextBrush);
        }

        public override string ToString()
        {
            return TypeDescriptor.GetConverter(typeof(Font)).ConvertToString(this.TextFont);
        }

        [XmlAttribute, RefreshProperties(RefreshProperties.All), DefaultValue(1)]
        public StringAlignment Alignment
        {
            get
            {
                return this.alignment;
            }
            set
            {
                this.alignment = value;
            }
        }

        [RefreshProperties(RefreshProperties.All), DefaultValue(1), XmlAttribute]
        public StringAlignment LineAlignment
        {
            get
            {
                return this.lineAlignment;
            }
            set
            {
                this.lineAlignment = value;
            }
        }

        public BrushMapper TextBrush
        {
            get
            {
                return this.textBrush;
            }
            set
            {
                this.textBrush = value;
            }
        }

        [XmlIgnore]
        public Font TextFont
        {
            get
            {
                return this.textFont;
            }
            set
            {
                this.textFont = value;
            }
        }

        [XmlElement("TextFont"), DefaultValue("Verdana, 10pt"), Browsable(false)]
        public string XmlTextFont
        {
            get
            {
                return TypeDescriptor.GetConverter(typeof(Font)).ConvertToString(null, FormulaHelper.enUS, this.TextFont);
            }
            set
            {
                TypeConverter converter = TypeDescriptor.GetConverter(typeof(Font));
                this.TextFont = (Font) converter.ConvertFromString(null, FormulaHelper.enUS, value);
            }
        }
    }
}