Alarmklokke

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Drawing.Drawing2D;
using System.Media;
using System.Threading;
namespace niceclock
{
    public partial class Form1 : Form
    {
        private int ms_since_alarm = 0;
        private bool alarmeIsOn = false;
        
        public Form1()
        {
            InitializeComponent();
            //this.SetBounds(100, 100, 400, 400 + 100);
        }
        
        private void timer1_Tick(object sender, EventArgs e)
        {
            // refresh clock
            ms_since_alarm = 
                Math.Min(ms_since_alarm + timer1.Interval, 100000);
            clockPanel.Invalidate();
            DrawArms(this.clockPanel.CreateGraphics());
       }
 
        private void clockPanel_Paint(object sender, PaintEventArgs e)
        {
            DrawArms(e.Graphics);            
        }
        
        protected void DrawArms(Graphics g)
        {
            // assume clock has radius 1
            Matrix m = new Matrix();
            m.Reset();
            m.Translate(0.5f, 0.5f);
            m.Scale(0.4f, -0.4f);
            g.Transform = m;
            //Rectangle R = this.ClientRectangle;
            Rectangle R = clockPanel.ClientRectangle;
            float factor = (float)Math.Min(R.Height, R.Width);
            g.PageScale = factor;
            Brush markbrush = new SolidBrush(Color.Black);
            Pen markpen = new Pen(markbrush);
            // mark hours
            markpen.Width = 0.005f;
            double angle = 0.0;
            while (angle < 2 * Math.PI + 0.01f)
            {
                float x = (float)Math.Cos(angle);
                float y = (float)Math.Sin(angle);
                g.FillEllipse(markbrush, 
                    x - 0.03f, y - 0.03f, 0.06f, 0.06f);
                angle += Math.PI / 6;
            }
            
            DrawArmsNow(g);
            if (alarmeIsOn)
                   DrawAlarm(g);
        }
        private void DrawArmsNow(Graphics g)
        {
            Brush markbrush = new SolidBrush(Color.Black);
            Pen markpen = new Pen(markbrush);
            // seconds arm
            markpen.Width = 0.005f;
            double angle = clockarms.TimeAngle.SecondAngleNow;
            g.DrawLine(markpen, 0.0f, 0.0f,
                (float)Math.Cos(angle * (Math.PI / 180.0)),
                (float)Math.Sin(angle * (Math.PI / 180.0)));
            // minutes arm
            markpen.Width = 2 * markpen.Width;
            angle = clockarms.TimeAngle.MinuteAngleNow;
            g.DrawLine(markpen, 0.0f, 0.0f,
                0.7f * (float)Math.Cos(angle * (Math.PI / 180.0)),
                0.7f * (float)Math.Sin(angle * (Math.PI / 180.0)));
            
            // hours arm
            markpen.Width = 2 * markpen.Width;
            angle = clockarms.TimeAngle.HourAngleNow;
            g.DrawLine(markpen, 0.0f, 0.0f,
                0.5f * (float)Math.Cos(angle * (Math.PI / 180.0)),
                0.5f * (float)Math.Sin(angle * (Math.PI / 180.0)));
        }
        private void DrawAlarm(Graphics g)
        {
            
            Brush markbrush = new SolidBrush(Color.Red);
            Pen markpen = new Pen(markbrush);
            double angle = 0.0;
            markpen.Width = 0.005f;
            // AlarmTime: 
            // year,month,day is irrelevant, seconds allways null
            DateTime alarmTime = new DateTime(2006, 12, 10,
                        Convert.ToInt32(numericHours.Value),
                        Convert.ToInt32(numericMinutes.Value), 0);
            // hours arm
            markpen.Width = 3 * markpen.Width;
            angle = clockarms.TimeAngle.HourAngle(alarmTime);
            g.DrawLine(markpen, 0.0f, 0.0f,
                (float)Math.Cos(angle * (Math.PI / 180.0)),
                (float)Math.Sin(angle * (Math.PI / 180.0)));
            int alarmMinutes = 60 * alarmTime.Hour + alarmTime.Minute;
            DateTime dt=DateTime.UtcNow.ToLocalTime();
            int nowMinutes = 60 * (dt.Hour % 12) + dt.Minute;
            if ((alarmMinutes == nowMinutes) && (ms_since_alarm > 61000))
            {
                playSound();
                ms_since_alarm = 0;
            }
        }
        
        private void playSound()
        {
            // pick sound from app resources
            SoundPlayer snd = 
                new SoundPlayer(Properties.Resources.clock_alarm);
            snd.PlaySync();
            saynumber.Talker.Say(DateTime.UtcNow.ToLocalTime().Hour);
            saynumber.Talker.Say(DateTime.UtcNow.ToLocalTime().Minute);
        }
        private void button1_Click(object sender, EventArgs e)
        {
            // user want to set alarm
            alarmeIsOn = !alarmeIsOn;
            if (alarmeIsOn)
                button1.Text = "Skru av alarm";
            else
                button1.Text = "Sett p� alarm";
        }
    }
}