运行效果：http://blog.csdn.net/images/blog_csdn_net/johnsuna/ClockControl.jpg 右下角图片
//--------------------------（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 _
