source: branches/eraser6/Eraser/LogForm.cs @ 339

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

using Eraser.Manager;
using System.Globalization;

namespace Eraser
{
    public partial class LogForm : Form
    {
        public LogForm(Task task)
        {
            InitializeComponent();
            this.task = task;

            //Update the title
            Text = string.Format("{0} - {1}", Text, task.UIText);

            //Add all the existing log messages
            Dictionary<DateTime, List<LogEntry>> log = task.Log.Entries;
            Dictionary<DateTime, List<LogEntry>>.Enumerator iter = log.GetEnumerator();
            foreach (DateTime sessionTime in log.Keys)
            {
                this.log.Groups.Add(new ListViewGroup("Session: " + sessionTime.ToString(DATEPATTERN)));
                foreach (LogEntry entry in log[sessionTime])
                    task_Logged(entry);
            }

            //Register our event handler to get live log messages
            task.Log.OnLogged += new Logger.LogEvent(task_Logged);
        }

        ~LogForm()
        {
            task.Log.OnLogged -= new Logger.LogEvent(task_Logged);
        }

        private void task_Logged(LogEntry e)
        {
            ListViewItem item = log.Items.Add(e.Timestamp.ToString(DATEPATTERN));
            item.SubItems.Add(e.Level.ToString());
            item.SubItems.Add(e.Message);
            if (log.Groups.Count != 0)
                item.Group = log.Groups[log.Groups.Count - 1];

            switch (e.Level)
            {
                case LogLevel.FATAL:
                case LogLevel.ERROR:
                    item.ForeColor = Color.Red;
                    break;
                case LogLevel.WARNING:
                    item.ForeColor = Color.OrangeRed;
                    break;
            }
        }

        private void clear_Click(object sender, EventArgs e)
        {
            this.task.Log.Clear();
            log.Items.Clear();
        }

        private void close_Click(object sender, EventArgs e)
        {
            Close();
        }

        private Task task;
        private static string DATEPATTERN =
            DateTimeFormatInfo.CurrentInfo.ShortDatePattern + " " +
            DateTimeFormatInfo.CurrentInfo.ShortTimePattern;
    }
}