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

namespace anclock
{
public partial class anclock : Form
{
bool pb = false;
private System.ComponentModel.IContainer components = null;
private System.Windows.Forms.PictureBox pictureBox1;
private System.Windows.Forms.Timer timer1;
private System.Windows.Forms.ContextMenuStrip contextMenuStrip1;
private System.Windows.Forms.ToolStripMenuItem tsmi1;
private System.Windows.Forms.ToolStripMenuItem tsmi2;

protected override void Dispose(bool disposing)
{
    if (disposing && (components != null)) { components.Dispose(); }
    base.Dispose(disposing);
}
private void InitializeComponent()
{

}
public anclock()
{
    this.components = new System.ComponentModel.Container();
    this.pictureBox1 = new System.Windows.Forms.PictureBox();
    this.timer1 = new System.Windows.Forms.Timer(this.components);
    this.contextMenuStrip1 = new System.Windows.Forms.ContextMenuStrip(this.components);
    this.tsmi1 = new System.Windows.Forms.ToolStripMenuItem();
    this.tsmi2 = new System.Windows.Forms.ToolStripMenuItem();
    ((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).BeginInit();
    this.contextMenuStrip1.SuspendLayout();
    this.SuspendLayout();
    this.pictureBox1.BackColor = System.Drawing.Color.Transparent;
    this.pictureBox1.Location = new System.Drawing.Point(0, 0);
    this.pictureBox1.Margin = new System.Windows.Forms.Padding(0);
    this.pictureBox1.Name = "pictureBox1";
    this.pictureBox1.Size = new System.Drawing.Size(300, 300);
    this.pictureBox1.TabIndex = 0;
    this.pictureBox1.TabStop = false;
    this.pictureBox1.MouseMove += new System.Windows.Forms.MouseEventHandler(this.pictureBox1_MouseMove);
    this.pictureBox1.MouseDown += new System.Windows.Forms.MouseEventHandler(this.pictureBox1_MouseDown);
    this.pictureBox1.MouseUp += new System.Windows.Forms.MouseEventHandler(this.pictureBox1_MouseUp);
    this.timer1.Interval = 500;
    this.timer1.Tick += new System.EventHandler(this.timer1_Tick);
    this.contextMenuStrip1.Items.AddRange(new System.Windows.Forms.ToolStripItem[] { this.tsmi1, this.tsmi2 });
    this.contextMenuStrip1.Name = "contextMenuStrip1";
    this.contextMenuStrip1.RenderMode = System.Windows.Forms.ToolStripRenderMode.System;
    this.contextMenuStrip1.ShowImageMargin = false;
    this.contextMenuStrip1.Size = new System.Drawing.Size(74, 48);
    this.tsmi1.Name = "tsmi1";
    this.tsmi1.Size = new System.Drawing.Size(73, 22);
    this.tsmi1.Text = "time";
    this.tsmi2.Name = "tsmi2";
    this.tsmi2.Size = new System.Drawing.Size(73, 22);
    this.tsmi2.Text = "Close";
    this.tsmi2.Click += new System.EventHandler(this.tsmi2_Click);
    this.FormBorderStyle = FormBorderStyle.None;
    this.AllowDrop = true;
    this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
    this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
    this.BackgroundImageLayout = System.Windows.Forms.ImageLayout.Center;
    this.ClientSize = new System.Drawing.Size(300, 300);
    this.ContextMenuStrip = this.contextMenuStrip1;
    this.Controls.Add(this.pictureBox1);
    this.Name = "Form1";
    this.ShowIcon = false;
    this.ShowInTaskbar = false;
    this.Load += new System.EventHandler(this.Form1_Load);
    this.DragDrop += new System.Windows.Forms.DragEventHandler(this.Form1_DragDrop);
    this.DragEnter += new System.Windows.Forms.DragEventHandler(this.Form1_DragEnter);
    ((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).EndInit();
    this.contextMenuStrip1.ResumeLayout(false);
    this.ResumeLayout(false);
    Setbrd();
    timer1.Start();
}
private void Form1_Load(object sender, EventArgs e)
{
    this.SetBounds(this.Left, this.Top, 301, 301, BoundsSpecified.Size);
    GraphicsPath path = new GraphicsPath();
    path.AddEllipse(new Rectangle(0, 0, 300, 300));
    this.Region = new Region(path);
    this.TopMost = true;
}
private void Setbrd()
{
    Bitmap img = this.BackgroundImage == null ? new Bitmap(300, 300) : (Bitmap)this.BackgroundImage;
    Graphics g = Graphics.FromImage(img);
    int i = 12, l = 130;
    for (; i > 0; i--)
    {
        string st = i.ToString();
        Font fn = new Font("Arial Bold", 25);
        SizeF f = g.MeasureString(st, fn, 50);
        double rd = - i * Math.PI / 6;
        PointF p = new PointF((float)(150 - l * Math.Sin(rd) - f.Width / 2), (float)(150 - l * Math.Cos(rd) - f.Height / 2));
        g.DrawString(st, fn, Brushes.Black, p);
    }
    this.BackgroundImage = img;
    g.Dispose();
}
private Point[] Setneedle(int l, double rd, double r)
{
    rd = -rd;
    double r1 = rd - r, r2 = rd + r;
    Point[] p = new Point[3];
    p[0] = new Point((int)(150 - l * Math.Sin(rd)), (int)(150 - l * Math.Cos(rd)));
    p[1] = new Point((int)(150 - 15 * Math.Sin(r1)), (int)(150 - 15 * Math.Cos(r1)));
    p[2] = new Point((int)(150 - 15 * Math.Sin(r2)), (int)(150 - 15 * Math.Cos(r2)));
    return p;
}
private void timer1_Tick(object sender, EventArgs e)
{
    Bitmap img = new Bitmap(300, 300);
    Graphics g = Graphics.FromImage(img);
    DateTime d = DateTime.Now;
    tsmi1.Text = d.ToString();
    double rd = (d.Hour % 12) * Math.PI / 6 + d.Minute * Math.PI / 360, r = Math.PI / 4; int l = 80;
    Point[] p = Setneedle(l, rd, r);
    g.FillPolygon(Brushes.Black, p);
    rd = d.Minute * Math.PI / 30; r = Math.PI / 8; l = 110;
    p = Setneedle(l, rd, r);
    g.FillPolygon(Brushes.Black, p);
    rd = d.Second * Math.PI / 30; r = Math.PI / 18; l = 140;
    p = Setneedle(l, rd, r);
    g.FillPolygon(Brushes.Black, p);
    g.FillEllipse(Brushes.Black, 134, 134, 32, 32);
    pictureBox1.Image = img;
    g.Dispose(); g = null; GC.Collect();
}
private void tsmi2_Click(object sender, EventArgs e)
{ this.Close(); }
private void Form1_DragEnter(object sender, DragEventArgs e)
{
    if (e.Data.GetDataPresent(DataFormats.FileDrop)) e.Effect = DragDropEffects.Copy; else e.Effect = DragDropEffects.None;
}
private void Form1_DragDrop(object sender, DragEventArgs e)
{
    string[] fp;
    fp = (string[])e.Data.GetData(DataFormats.FileDrop, false);
    if (fp.Length == 0) return;
    timer1.Stop();
    Bitmap img = null;Graphics g = null;
    try
    {
        img = new Bitmap(@fp[0]);
        g = Graphics.FromImage((Bitmap)this.BackgroundImage);
        g.DrawImage(img, this.ClientRectangle);
        Setbrd();
    }
    catch { }
    finally
    {
        if (g != null) g.Dispose();
        if (img != null) img.Dispose();
        timer1.Start(); 
    }
}
private void pictureBox1_MouseMove(object sender, MouseEventArgs e)
{
    if (!pb) return;
    Point p = Cursor.Position;
    this.Location = new Point(p.X - 150, p.Y - 150);
}
private void pictureBox1_MouseDown(object sender, MouseEventArgs e)
{ if (e.Button == MouseButtons.Left) pb = true; }
private void pictureBox1_MouseUp(object sender, MouseEventArgs e)
{ pb = false;}

}
static class Program
{
[STAThread]
static void Main()
{
    Application.EnableVisualStyles();
    Application.SetCompatibleTextRenderingDefault(false);
    Application.Run(new anclock());
}
}
}