const float PI = 3.141592654F;
DateTime dateTime;
float fRadius, fCenterX, fCenterY, fCenterCircleRadius, fHourLength;
float fMinLength, fSecLength, fHourThickness, fMinThickness, fSecThickness;
bool bDraw5MinuteTicks = true;
bool bDraw1MinuteTicks = true;
float fTicksThickness = 2;
Color hrColor = Color.GreenYellow;
Color minColor = Color.Aqua;
Color secColor = Color.Gold;
Color circleColor = Color.Black;
Color ticksColor = Color.Green;
private void Form1_Load(object sender, System.EventArgs e)
{
dateTime = DateTime.Now;
this.Form1_Resize(sender, e);
}
private void timer2_Tick(object sender, System.EventArgs e)
{
this.dateTime = DateTime.Now;
this.Refresh();
}
private void DrawLine(float fThickness, float fLength, Color color, float fRadians, System.Windows.Forms.PaintEventArgs e)
{
e.Graphics.DrawLine(new Pen(color, fThickness),
fCenterX - (float)(fLength / 9 * System.Math.Sin(fRadians)),
fCenterY + (float)(fLength / 9 * System.Math.Cos(fRadians)),
fCenterX + (float)(fLength * System.Math.Sin(fRadians)),
fCenterY - (float)(fLength * System.Math.Cos(fRadians)));
}
private void DrawPolygon(float fThickness, float fLength, Color color, float fRadians, System.Windows.Forms.PaintEventArgs e)
{
PointF A = new PointF((float)(fCenterX + fThickness * 2 * System.Math.Sin(fRadians + PI / 2)),
(float)(fCenterY - fThickness * 2 * System.Math.Cos(fRadians + PI / 2)));
PointF B = new PointF((float)(fCenterX + fThickness * 2 * System.Math.Sin(fRadians - PI / 2)),
(float)(fCenterY - fThickness * 2 * System.Math.Cos(fRadians - PI / 2)));
PointF C = new PointF((float)(fCenterX + fLength * System.Math.Sin(fRadians)),
(float)(fCenterY - fLength * System.Math.Cos(fRadians)));
PointF D = new PointF((float)(fCenterX - fThickness * 4 * System.Math.Sin(fRadians)),
(float)(fCenterY + fThickness * 4 * System.Math.Cos(fRadians)));
PointF[] points = { A, D, B, C };
e.Graphics.FillPolygon(new SolidBrush(color), points);
}
private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
{
Image newImage = Image.FromFile(Application.StartupPath + @"1.png");
Point ulCorner = new Point(69, 50);
e.Graphics.FillEllipse(Brushes.Black, 38, 26, 210, 210);
e.Graphics.FillEllipse(Brushes.White, 44, 30, 200, 200);
e.Graphics.DrawImageUnscaled(newImage, ulCorner);
float fRadHr = (dateTime.Hour % 12 + dateTime.Minute / 60F) * 30 * PI / 180;
float fRadMin = (dateTime.Minute) * 6 * PI / 180;
float fRadSec = (dateTime.Second) * 6 * PI / 180;
DrawPolygon(this.fHourThickness, this.fHourLength, hrColor, fRadHr, e);
DrawPolygon(this.fMinThickness, this.fMinLength, minColor, fRadMin, e);
DrawLine(this.fSecThickness, this.fSecLength, secColor, fRadSec, e);
for (int i = 0; i < 60; i++)
{
if (this.bDraw5MinuteTicks == true && i % 5 == 0) // Draw 5 minute ticks
{
e.Graphics.DrawLine(new Pen(ticksColor, fTicksThickness),
fCenterX + (float)(this.fRadius / 1.50F * System.Math.Sin(i * 6 * PI / 180)),
fCenterY - (float)(this.fRadius / 1.50F * System.Math.Cos(i * 6 * PI / 180)),
fCenterX + (float)(this.fRadius / 1.65F * System.Math.Sin(i * 6 * PI / 180)),
fCenterY - (float)(this.fRadius / 1.65F * System.Math.Cos(i * 6 * PI / 180)));
}
else if (this.bDraw1MinuteTicks == true) // draw 1 minute ticks
{
e.Graphics.DrawLine(new Pen(ticksColor, fTicksThickness),
fCenterX + (float)(this.fRadius / 1.50F * System.Math.Sin(i * 6 * PI / 180)),
fCenterY - (float)(this.fRadius / 1.50F * System.Math.Cos(i * 6 * PI / 180)),
fCenterX + (float)(this.fRadius / 1.55F * System.Math.Sin(i * 6 * PI / 180)),
fCenterY - (float)(this.fRadius / 1.55F * System.Math.Cos(i * 6 * PI / 180)));
}
}
//draw circle at center
e.Graphics.FillEllipse(new SolidBrush(circleColor), fCenterX - fCenterCircleRadius / 2, fCenterY - fCenterCircleRadius / 2, fCenterCircleRadius, fCenterCircleRadius);
}
private void Form1_Resize(object sender, System.EventArgs e)
{
this.Width = this.Height;
this.fRadius = this.Height / 2;
this.fCenterX = this.ClientSize.Width / 2;
this.fCenterY = this.ClientSize.Height / 2;
this.fHourLength = (float)this.Height / 3 / 1.85F;
this.fMinLength = (float)this.Height / 3 / 1.20F;
this.fSecLength = (float)this.Height / 3 / 1.15F;
this.fHourThickness = (float)this.Height / 100;
this.fMinThickness = (float)this.Height / 150;
this.fSecThickness = (float)this.Height / 200;
this.fCenterCircleRadius = this.Height / 50;
timer2.Start();
}
public Color HourHandColor
{
get { return this.hrColor; }
set { this.hrColor = value; }
}
public Color MinuteHandColor
{
get { return this.minColor; }
set { this.minColor = value; }
}
public Color SecondHandColor
{
get { return this.secColor; }
set
{
this.secColor = value;
this.circleColor = value;
}
}
public Color TicksColor
{
get { return this.ticksColor; }
set { this.ticksColor = value; }
}
public bool Draw1MinuteTicks
{
get { return this.bDraw1MinuteTicks; }
set { this.bDraw1MinuteTicks = value; }
}
public bool Draw5MinuteTicks
{
get { return this.bDraw5MinuteTicks; }
set { this.bDraw5MinuteTicks = value; }
}
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