RaUI/Source/ryControls/ImageChart/MovementPainterBase.cs

using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing;

namespace TChart.ImageChart
{
    /// <summary>
    /// <20><>ͼ<EFBFBD><CDBC><EFBFBD>Ļ<EFBFBD><C4BB><EFBFBD><EFBFBD><EFBFBD>
    /// </summary>
    /// <remarks>
    /// <20><><EFBFBD><EFBFBD>: Kingthy 
    /// <20><><EFBFBD><EFBFBD>: 2007-09-11
    /// MSN:  Kingthy@gmail.com
    /// ת<><D7AA><EFBFBD><EFBFBD>ע<EFBFBD><D7A2>ԭ<EFBFBD><D4AD><EFBFBD><EFBFBD>,<2C><><EFBFBD><EFBFBD><EFBFBD>и<EFBFBD><D0B8><EFBFBD><EFBFBD>޸<EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϣ<EFBFBD><CFA3><EFBFBD>ܷ<EFBFBD>һ<EFBFBD>ݸ<EFBFBD><DDB8><EFBFBD>.лл
    /// </remarks>
    public abstract class MovementPainterBase
    {
        /// <summary>
        /// 
        /// </summary>
        /// <param name="image"></param>
        public MovementPainterBase(MovementImage image)
        {
            this.m_Image = image;
        }

        private MovementImage m_Image;
        /// <summary>
        /// <20><><EFBFBD>ش<EFBFBD><D8B4><EFBFBD>ͼ<EFBFBD><CDBC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ
        /// </summary>
        public MovementImage Image
        {
            get
            {
                return m_Image;
            }
            set
            {
                m_Image = value;
            }
        }

        #region ȡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
        /// <summary>
        /// <20><>ȡijֵ<C4B3><D6B5>Y<EFBFBD><59><EFBFBD>ϵ<EFBFBD>λ<EFBFBD><CEBB>
        /// </summary>
        /// <param name="value"><3E><>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD>ֵ</param>
        /// <returns><3E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD></returns>
        protected int GetYPosition(decimal value)
        {
            //ȡ<><C8A1>Y<EFBFBD><59><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ0<CEAA><30>λ<EFBFBD><CEBB>
            int y = Image.Height - Image.YSpaceWidth;
            //ȡ<><C8A1>Y<EFBFBD><59><EFBFBD><EFBFBD><EFBFBD>ܸ߶<DCB8>
            int h = Image.Height - Image.YSpaceWidth * 2;

            //ȡ<>ñ<EFBFBD><C3B1><EFBFBD>
            int percent = 0;
            if (Image.XAxisMaxValue != 0)
            {
                percent = (int)((value / Image.XAxisMaxValue) * h);
            }
            return y - percent;
        }
        #endregion

        /// <summary>
        /// <20><>XY<58><59><EFBFBD><EFBFBD>
        /// </summary>
        /// <param name="graphics"><3E><><EFBFBD><EFBFBD></param>
        /// <param name="xAxes">X<><58><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD></param>
        public virtual void DrawXYAxisLine(System.Drawing.Graphics graphics, XAxisItemList xAxes)
        {
            int i, p, h;
            StringFormat format = new StringFormat
            {
                Alignment = StringAlignment.Center,
                LineAlignment = StringAlignment.Center
            };
            int tmpXSpaceWidth;
            //tmpXSpaceWidth = Image.XSpaceWidth;
            tmpXSpaceWidth = Image.Xspace;

            //<2F><>Y<EFBFBD><59><EFBFBD><EFBFBD>
            Point p1 = new Point(tmpXSpaceWidth, Image.YSpaceWidth);
            Point p2 = new Point(tmpXSpaceWidth, Image.Height - Image.YSpaceWidth);
            graphics.DrawLine(new Pen(Image.YAxisColor), p1, p2);

            //<2F><><EFBFBD>ȷ<EFBFBD><C8B7><EFBFBD>[Y<><59>Ĭ<EFBFBD><C4AC>Ϊ10<31>ȷ<EFBFBD>]
            h = (p2.Y - p1.Y) / 10;         //<2F>ȷ<EFBFBD><C8B7>ߵļ<DFB5><C4BC><EFBFBD>

            //0<><30>10<31><30><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
            for (i = 1; i <= 9; i++)
            {
                p = p1.Y + h * i;
                graphics.DrawLine(new Pen(Image.YAxisColor), new Point(p1.X - 3, p), new Point(p1.X, p));
            }


            //<2F><>X<EFBFBD><58><EFBFBD><EFBFBD>
            //<2F><>[X = <20><><EFBFBD>Ҽ<EFBFBD><D2BC><EFBFBD> + X<><58><EFBFBD>еļ<D0B5><C4BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, Y = ͼƬ<CDBC>߶<EFBFBD> - Y<><59><EFBFBD><EFBFBD><EFBFBD><EFBFBD>]
            Point p3 = new Point(Image.XSpaceWidth * xAxes.Count + tmpXSpaceWidth * 2, Image.Height - Image.YSpaceWidth);
            graphics.DrawLine(new Pen(Image.XAxisColor), p2, p3);


            //<2F><><EFBFBD>ȷ<EFBFBD><C8B7><EFBFBD>
            for (i = 1; i <= xAxes.Count; i++)
            {
                    p = p1.X + Image.XSpaceWidth * i;

                //<2F><><EFBFBD><EFBFBD>p3<70><33>
                p3.X = p;
                p3.Y = p2.Y + 3;
                graphics.DrawLine(new Pen(Image.XAxisColor), new Point(p, p2.Y), p3);

                //<2F><><EFBFBD><EFBFBD>X<EFBFBD><58><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
                p3.Y = p2.Y + Image.YSpaceWidth / 2;
                XAxisItem item = xAxes[i - 1];
                if (item != null && !string.IsNullOrEmpty(item.Title))
                {
                    graphics.DrawString(item.Title, item.TitleFont, new SolidBrush(item.TitleColor), p3, format);
                }
            }
        }

        /// <summary>
        /// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
        /// </summary>
        /// <param name="graphics"></param>
        public virtual void DrawTitle(System.Drawing.Graphics graphics)
        {
            StringFormat format = new StringFormat
            {
                Alignment = StringAlignment.Near,
                LineAlignment = StringAlignment.Near
            };

            if (!string.IsNullOrEmpty(Image.Title))
            {
                graphics.DrawString(Image.Title, Image.TitleFont, new SolidBrush(Image.TitleColor), new Point(3,3), format);
            }
        }

        /// <summary>
        /// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
        /// </summary>
        /// <param name="graphics"><3E><><EFBFBD><EFBFBD></param>
        /// <param name="xAxes">X<><58><EFBFBD><EFBFBD><EFBFBD><EFBFBD></param>
        public abstract void DrawValue(System.Drawing.Graphics graphics, XAxisItemList xAxes);
    }
}