source: branches/eraser6/Eraser/SchedulerPanel.cs @ 160

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

using System.Globalization;
using Eraser.Manager;

namespace Eraser
{
    public partial class SchedulerPanel : Eraser.BasePanel
    {
        public SchedulerPanel()
        {
            InitializeComponent();
        }

        /// <summary>
        /// Adds a task to the list of scheduled tasks
        /// </summary>
        /// <param name="task">The task object.</param>
        public void AddTask(Task task)
        {
            ListViewItem item = scheduler.Items.Add(GenerateTaskName(task));
            if (task.Schedule is RecurringSchedule)
                item.SubItems.Add((task.Schedule as RecurringSchedule).NextRun.
                    ToString(DateTimeFormatInfo.CurrentInfo.FullDateTimePattern));
            else
                item.SubItems.Add(task.Schedule.UIText);
            item.SubItems.Add(string.Empty);

            if (task.Schedule == Schedule.RunNow)
                item.Group = scheduler.Groups["immediate"];
            else if (task.Schedule == Schedule.RunOnRestart)
                item.Group = scheduler.Groups["restart"];
            else
                item.Group = scheduler.Groups["recurring"];
        }

        /// <summary>
        /// Determines the task name to display, deciding on whether a task name is
        /// provided by the user.
        /// </summary>
        /// <param name="task">The task object for which a name is to be generated</param>
        /// <returns>A task name, may not be unique.</returns>
        private string GenerateTaskName(Task task)
        {
            //Simple case, the task name was given by the user.
            if (task.Name.Length != 0)
                return task.Name;

            string result = string.Empty;
            if (task.Entries.Count < 3)
                //Simpler case, small set of data.
                foreach (Task.EraseTarget tgt in task.Entries)
                    result += tgt.UIText + ", ";
            else
                //Ok, we've quite a few entries, get the first, the mid and the end.
                for (int i = 0; i < task.Entries.Count; i += task.Entries.Count / 3)
                    result += task.Entries[i].UIText + ", ";
            return result.Substring(0, result.Length - 2);
        }
    }
}