using System.Windows.Forms;
using System.Drawing;
using System.Drawing.Drawing2D;

namespace HotelPms.Share.Windows.Component
{
    public partial class FunctionKeyBar : System.Windows.Forms.Control
    {
        private float m_Split = 5;
        StringFormat format = new StringFormat();
        RectangleF[] cellsRectTitle = new RectangleF[12];
        RectangleF[] cellsRectKey = new RectangleF[12];
        private string[] m_KeyContext = new string[] { string.Empty, string.Empty, string.Empty, string.Empty, string.Empty, string.Empty,
                                                       string.Empty, string.Empty, string.Empty, string.Empty, string.Empty, string.Empty};

        /// <summary>
        /// F1の機能名
        /// </summary>
        public string KeyContextF01
        {
            set { m_KeyContext[0] = value; Invalidate(); }
            get { return m_KeyContext[0]; }
        }

        /// <summary>
        /// F2の機能名
        /// </summary>
        public string KeyContextF02
        {
            set { m_KeyContext[1] = value; Invalidate(); }
            get { return m_KeyContext[1]; }
        }

        /// <summary>
        /// F3の機能名
        /// </summary>
        public string KeyContextF03
        {
            set { m_KeyContext[2] = value; Invalidate(); }
            get { return m_KeyContext[2]; }
        }

        /// <summary>
        /// F4の機能名
        /// </summary>
        public string KeyContextF04
        {
            set { m_KeyContext[3] = value; Invalidate(); }
            get { return m_KeyContext[3]; }
        }

        /// <summary>
        /// F5の機能名
        /// </summary>
        public string KeyContextF05
        {
            set { m_KeyContext[4] = value; Invalidate(); }
            get { return m_KeyContext[4]; }
        }

        /// <summary>
        /// F6の機能名
        /// </summary>
        public string KeyContextF06
        {
            set { m_KeyContext[5] = value; Invalidate(); }
            get { return m_KeyContext[5]; }
        }

        /// <summary>
        /// F7の機能名
        /// </summary>
        public string KeyContextF07
        {
            set { m_KeyContext[6] = value; Invalidate(); }
            get { return m_KeyContext[6]; }
        }

        /// <summary>
        /// F8の機能名
        /// </summary>
        public string KeyContextF08
        {
            set { m_KeyContext[7] = value; Invalidate(); }
            get { return m_KeyContext[7]; }
        }

        /// <summary>
        /// F9の機能名
        /// </summary>
        public string KeyContextF09
        {
            set { m_KeyContext[8] = value; Invalidate(); }
            get { return m_KeyContext[8]; }
        }

        /// <summary>
        /// F10の機能名
        /// </summary>
        public string KeyContextF10
        {
            set { m_KeyContext[9] = value; Invalidate(); }
            get { return m_KeyContext[9]; }
        }

        /// <summary>
        /// F11の機能名
        /// </summary>
        public string KeyContextF11
        {
            set { m_KeyContext[10] = value; Invalidate(); }
            get { return m_KeyContext[10]; }
        }

        /// <summary>
        /// F12の機能名
        /// </summary>
        public string KeyContextF12
        {
            set { m_KeyContext[11] = value; Invalidate(); }
            get { return m_KeyContext[11]; }
        }

        private Color m_CaptionBeginColor = Color.Maroon;

        public Color CaptionBeginColor
        {
            get { return m_CaptionBeginColor; }
            set { m_CaptionBeginColor = value; Invalidate(); }
        }

        private Color m_CaptionEndColor = Color.Gold;

        public Color CaptionEndColor
        {
            get { return m_CaptionEndColor; }
            set { m_CaptionEndColor = value; Invalidate(); }
        }


        public FunctionKeyBar()
        {
            SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.ResizeRedraw | ControlStyles.Opaque | ControlStyles.UserPaint | ControlStyles.DoubleBuffer | ControlStyles.Selectable | ControlStyles.UserMouse, true);
            format.Alignment = StringAlignment.Center;
            format.LineAlignment = StringAlignment.Center;            
        }

        protected override void OnPaint(PaintEventArgs e)
        {
            float width = (float)(this.Width - this.Padding.Left - this.Padding.Right - 2 * m_Split);
            float height = (float)(this.Height - this.Padding.Top - this.Padding.Bottom);

            float cellWidth = width / 12F;
            float cellHeight = height / 2F;

            float x = this.Padding.Left;
            for (int i = 0; i < 12; i++)
            { 
                //上
                cellsRectTitle[i] = new RectangleF(new PointF(x, this.Padding.Top), new SizeF(cellWidth, cellHeight));
                
                //下
                cellsRectKey[i] = new RectangleF(new PointF(x, this.Padding.Top + cellHeight), new SizeF(cellWidth, cellHeight));
               
                x += cellWidth;
                if ((i + 1) % 4 == 0) { x += m_Split; }
            }

            e.Graphics.FillRectangle(new SolidBrush(this.BackColor), 0, 0, this.Width, this.Height);
            //e.Graphics.FillRectangles(Brushes.Maroon, cellsRectTitle);

            for (int i = 0; i < 12; i++)
            {
                using (LinearGradientBrush brush = new LinearGradientBrush(cellsRectTitle[i], m_CaptionBeginColor, m_CaptionEndColor, LinearGradientMode.Vertical))
                {
                    brush.SetSigmaBellShape(0.4f, 0.45f);   //创建基于钟形曲线的渐变过渡过程。
                    e.Graphics.FillRectangle(brush, cellsRectTitle[i]);
                }
            }
           
            e.Graphics.DrawRectangles(System.Drawing.Pens.Black, cellsRectTitle);

            for (int i = 0; i < 12; i++)
            {
                string key = string.Format("F{0}", i + 1);
                e.Graphics.DrawString(key, this.Font, Brushes.White, cellsRectTitle[i], format);

                if (m_KeyContext[i].Length > 0)
                {
                    using (LinearGradientBrush brush = new LinearGradientBrush(cellsRectKey[i], Color.FromArgb(50, 169, 200), Color.FromArgb(0, 109, 189), LinearGradientMode.Vertical))
                    {

                        brush.SetSigmaBellShape(0.4f, 0.45f);   //创建基于钟形曲线的渐变过渡过程。
                        e.Graphics.FillRectangle(brush, cellsRectKey[i]);
                    }
                }
                else
                {
                    e.Graphics.FillRectangle(new SolidBrush((m_KeyContext[i].Length > 0) ? Color.FromArgb(0, 109, 189) : this.BackColor), cellsRectKey[i].X, cellsRectKey[i].Y, cellsRectKey[i].Width, cellsRectKey[i].Height);
                }
                e.Graphics.DrawRectangle(System.Drawing.Pens.Black, cellsRectKey[i].X, cellsRectKey[i].Y, cellsRectKey[i].Width, cellsRectKey[i].Height);
                if (m_KeyContext[i].Length > 0) { e.Graphics.DrawString(m_KeyContext[i], this.Font, Brushes.Yellow, cellsRectKey[i], format); }
            }
            

            base.OnPaint(e);
        }
        
    }
}