//--------------------------（如转载，请保留版权信息）-------------------------//
// SevenSegmentClockStyle.cs 朱继山 a3news(AT)hotmail.com --//
// ----------------------------- http://www.brawdraw.com ----------------------//
// -------------------- 未经书面许可，请勿用于商业用途 ---------------------//

using System;

namespace BrawDraw.Com.PhotoFrame.Net.PublicFunctions.Clock
{
    /// <summary>
    /// Clock's Style.时钟的样式定义
    /// </summary>
    public enum SevenSegmentClockStyle
      {
        DateOnly, // 只显示日期
        TimeOnly, // 只显示时间
        DateAndTime //显示日期和时间
      }
}

//--------------------------（如转载，请保留版权信息）-------------------------//
// SevenSegmentClock.cs 朱继山 a3news(AT)hotmail.com -------//
// ----------------------------- http://www.brawdraw.com ----------------------//
// -------------------- 未经书面许可，请勿用于商业用途 ---------------------//
using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Globalization;
using System.Windows.Forms;
using BrawDraw.Com.PhotoFrame.Net.PublicFunctions;
using System.ComponentModel;

namespace BrawDraw.Com.PhotoFrame.Net.PublicFunctions.Clock
{
    //这是控件的关键代码
    public class SevenSegmentClock : UserControl
    {
        DateTime _dateTime;
        //默认使用同时绘制日期和时间
        SevenSegmentClockStyle _clockStyle = SevenSegmentClockStyle.DateAndTime;
        Color _clockColor = Color.Black;
        //是否绘制阴影（即残影），以摸拟真似的LED时钟
        bool _isDrawShadow = true;

        Timer _timer = null;
        //是否自动更新时间
        bool _isTimerEnable = false;
        Graphics g = null;
        Bitmap m_Bitmap = null;

        public bool IsDrawShadow
        {
            get { return this._isDrawShadow; }
            set
             {
                this._isDrawShadow = value;
                this.Invalidate();
            }
     }

[Browsable(false)]
public System.Windows.Forms.Timer Timer
{
    get { return this._timer; }
    set
    {
        this._timer = value;
        if(_timer != null)
        {
            _timer.Tick += new EventHandler(TimerOnTick);
        }
    }
}

public bool IsTimerEnable
{
    get { return this._isTimerEnable; }
    set
    {
        if(value == true)
        {
            if(this._timer == null)
            {
                _timer = new Timer();
                _timer.Tick += new EventHandler(TimerOnTick);
                _timer.Interval = 1000;
                _timer.Enabled = true;
            }
        }
        else
        {
            if(this._timer != null)
            {
                _timer.Enabled = false;
            }
        }
    this._isTimerEnable = value;
  }
}

public void Start()
{
    this.IsTimerEnable = true;
    this.Refresh();
}

public void Stop()
{
    this.IsTimerEnable = false;
}

public System.DateTime DateTime
{
    get { return this._dateTime; }
    set { this._dateTime = value; }
}

//LED文字的颜色
public System.Drawing.Color ClockColor
{
    get { return this._clockColor; }
    set
    {
        this._clockColor = value;
        this.Invalidate();
    }
}

public SevenSegmentClockStyle SevenSegmentClockStyle
{
    get { return this._clockStyle; }
    set
    {
        this._clockStyle = value;
        this.Invalidate();
    }
}

public SevenSegmentClock()
{
    Text = "Seven-Segment Clock";
    //使用双缓冲，支持透明绘制
    SetStyle(ControlStyles.UserPaint | ControlStyles.DoubleBuffer | ControlStyles.AllPaintingInWmPaint| ControlStyles.ResizeRedraw | ControlStyles.SupportsTransparentBackColor, true);
    this.UpdateStyles();
    Init();
    _dateTime = DateTime.Now;
}

//初始化
private void Init()
{
    m_Bitmap = new Bitmap(this.Width, this.Height);

    g = Graphics.FromImage(m_Bitmap);
    g.CompositingQuality = CompositingQuality.HighQuality;
    g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAliasGridFit;

    //g.InterpolationMode = InterpolationMode.HighQualityBicubic;
    g.SmoothingMode = SmoothingMode.HighQuality;
    //g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAliasGridFit;
}

void TimerOnTick(object obj, EventArgs ea)
{
    DateTime dtNow = DateTime.Now;
    dtNow = new DateTime(dtNow.Year, dtNow.Month, dtNow.Day, dtNow.Hour, dtNow.Minute, dtNow.Second);
    if (dtNow != _dateTime)
    {
        _dateTime = dtNow;
        Invalidate();
    }
}

protected override void OnPaint(PaintEventArgs e)
{
    m_Bitmap = DrawClock();
    Graphics gg = e.Graphics;
    gg.CompositingQuality = CompositingQuality.HighQuality;
    gg.DrawImageUnscaled(m_Bitmap, 0, 0);
    //g.Dispose();
}

public Bitmap DrawClock()
{
    return this.DrawClock(this.ClientRectangle);
}

private void SevenSegmentClock_Resize(object sender, System.EventArgs e)
{
    Init();
    this.Refresh();
}

private void InitializeComponent()
{
    //
    // SevenSegmentClock
    //
    this.Name = "SevenSegmentClock";
    this.Size = new System.Drawing.Size(448, 64);
    this.Resize += new System.EventHandler(this.SevenSegmentClock_Resize);
}

int _clockStringWidth;
int _clockStringHeight;
public int ClockStringWidth
{
    get
    {
        return _clockStringWidth;
    }
}

public int ClockStringHeight
{
    get
    {
        return _clockStringHeight;
    }
}

//绘制时钟
public Bitmap DrawClock(Rectangle destRect)
{
    m_Bitmap = new Bitmap(destRect.Width, destRect.Height);
    //m_Bitmap = new Bitmap(destRect.X + this.Width, destRect.Y + this.Height);
    Graphics grfx = Graphics.FromImage(m_Bitmap);
    //设置绘图面板的绘制质量等
    grfx.CompositingQuality = CompositingQuality.HighQuality;
    grfx.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAliasGridFit;
    grfx.SmoothingMode = SmoothingMode.HighQuality;

    SevenSegmentDisplay ssd = new SevenSegmentDisplay(grfx);
    ssd.IsDrawShadow = this._isDrawShadow;
    GraphicsState gs = grfx.Save();
    grfx.TranslateTransform(destRect.X, destRect.Y);
    string strTime = string.Empty;
    if(this._clockStyle == SevenSegmentClockStyle.TimeOnly)
    {
        strTime = _dateTime.ToString("T", DateTimeFormatInfo.InvariantInfo);
    }
    else if(this._clockStyle == SevenSegmentClockStyle.DateOnly)
    {
        //设置日期格式
        strTime = _dateTime.ToString("yyyy-MM-dd", DateTimeFormatInfo.InvariantInfo);
    }
    else
    {
        strTime = _dateTime.ToString("yyyy-MM-dd", DateTimeFormatInfo.InvariantInfo) + " " +     _dateTime.ToString("T", DateTimeFormatInfo.InvariantInfo);
}

SizeF sizef = ssd.MeasureString(strTime, Font);
float fScale = Math.Min(destRect.Width / sizef.Width, destRect.Height / sizef.Height);
Font font = new Font(Font.FontFamily, fScale * Font.SizeInPoints);

sizef = ssd.MeasureString(strTime, font);
_clockStringWidth = (int)sizef.Width;
_clockStringHeight = (int)sizef.Height;

ssd.DrawString(strTime, font, new SolidBrush(this._clockColor),
(destRect.Width - sizef.Width) / 2,
(destRect.Height - sizef.Height) / 2);
grfx.Restore(gs);
return m_Bitmap;
}
}
}