svn/view/MainWindowListViewSorter.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Collections;
using System.Windows.Forms;

namespace Aqua877.WinApp.IronLivetube
{
        public class MainWindowListViewSorter : IComparer
        {
                private int _Column;
                private SortOrder _Order;

                public int Column
                {
                        set
                        {
                                if (this._Column == value)
                                {
                                        if (this._Order == SortOrder.Ascending)
                                        {
                                                this._Order = SortOrder.Descending;
                                        }
                                        else if (this._Order == SortOrder.Descending)
                                        {
                                                this._Order = SortOrder.Ascending;
                                        }
                                }
                                this._Column = value;
                        }
                        get
                        {
                                return this._Column;
                        }
                }

                public SortOrder Order
                {
                        set
                        {
                                this._Order = value;
                        }
                        get
                        {
                                return this._Order;
                        }
                }

                public MainWindowListViewSorter(int column, SortOrder order)
                {
                        this._Column = column;
                        this._Order = order;
                }

                public MainWindowListViewSorter()
                {
                        this._Column = 0;
                        this._Order = SortOrder.Ascending;
                }

                public int Compare(object x, object y)
                {
                        int result = 0;

                        var itemx = x as ListViewItem;
                        var itemy = y as ListViewItem;

                        switch (this.Column)
                        {
                                case 0:
                                {
                                        if (itemx.SubItems[this._Column].Text == "")
                                        {
                                                if (itemy.SubItems[this._Column].Text == "")
                                                {
                                                        result = 0;
                                                }
                                                else
                                                {
                                                        result = -1;
                                                }
                                        }
                                        else if (itemy.SubItems[this._Column].Text == "")
                                        {
                                                result = 1;
                                        }
                                        else
                                        {
                                                result = int.Parse(itemx.SubItems[0].Text).CompareTo(int.Parse(itemy.SubItems[0].Text));
                                                break;
                                        }
                                        break;
                                }

                                case 1:
                                {
                                        result = 0;
                                        break;
                                }

                                case 2:
                                case 3:
                                case 5:
                                case 6:
                                {
                                        if (itemx.SubItems[this._Column].Text == "")
                                        {
                                                if (itemy.SubItems[this._Column].Text == "")
                                                {
                                                        result = 0;
                                                }
                                                else
                                                {
                                                        result = -1;
                                                }
                                        }
                                        else if (itemy.SubItems[this._Column].Text == "")
                                        {
                                                result = 1;
                                        }
                                        else
                                        {
                                                result = string.Compare(itemx.SubItems[this._Column].Text, itemy.SubItems[this._Column].Text);
                                        }
                                        break;
                                }

                                case 4:
                                {
                                        result = DateTime.Compare(
                                                DateTime.ParseExact(itemx.SubItems[4].Text, "M/d H:m:s", null),
                                                DateTime.ParseExact(itemy.SubItems[4].Text, "M/d H:m:s", null)
                                        );
                                        break;
                                }
                        }

                        if (this._Order == SortOrder.Descending)
                        {
                                result = -result;
                        }
                        else if (this._Order == SortOrder.None)
                        {
                                result = 0;
                        }
                        return result;
                }
        }
}