126 lines
4.3 KiB
C#
126 lines
4.3 KiB
C#
/*
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* Copyright (c) 2006-2016, openmetaverse.co
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* All rights reserved.
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*
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* - Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* - Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* - Neither the name of the openmetaverse.co nor the names
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* of its contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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using System;
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using System.Collections.Generic;
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using System.Text;
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using System.Windows.Forms;
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namespace WinGridProxy
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{
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class ListViewNoFlicker : ListView
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{
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public ListViewNoFlicker()
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{
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//Activate double buffering
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this.SetStyle(ControlStyles.OptimizedDoubleBuffer | ControlStyles.AllPaintingInWmPaint, true);
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//Enable the OnNotifyMessage event so we get a chance to filter out
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// Windows messages before they get to the form's WndProc
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this.SetStyle(ControlStyles.EnableNotifyMessage, true);
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}
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protected override void OnNotifyMessage(Message m)
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{
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//Filter out the WM_ERASEBKGND message
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if (m.Msg != 0x14)
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{
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base.OnNotifyMessage(m);
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}
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}
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}
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public class ListViewItemComparer : IComparer<object>
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{
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// Initialize the variables to default
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public int column = 0;
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public bool bAscending = true;
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// Using the Compare function of IComparer
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public int Compare(object x, object y)
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{
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// Cast the objects to ListViewItems
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ListViewItem lvi1 = (ListViewItem)x;
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ListViewItem lvi2 = (ListViewItem)y;
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// If the column is the string columns
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if (column != 2)
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{
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string lvi1String = lvi1.SubItems[column].ToString();
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string lvi2String = lvi2.SubItems[column].ToString();
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// Return the normal Compare
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if (bAscending)
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return String.Compare(lvi1String, lvi2String);
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// Return the negated Compare
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return -String.Compare(lvi1String, lvi2String);
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}
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// The column is the Age column
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int lvi1Int = ParseListItemString(lvi1.SubItems[column].ToString());
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int lvi2Int = ParseListItemString(lvi2.SubItems[column].ToString());
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// Return the normal compare.. if x < y then return -1
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if (bAscending)
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{
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if (lvi1Int < lvi2Int)
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return -1;
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else if (lvi1Int == lvi2Int)
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return 0;
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return 1;
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}
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// Return the opposites for descending
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if (lvi1Int > lvi2Int)
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return -1;
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else if (lvi1Int == lvi2Int)
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return 0;
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return 1;
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}
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private int ParseListItemString(string x)
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{
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//ListViewItems are returned like this: "ListViewSubItem: {19}"
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int counter = 0;
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for (int i = x.Length - 1; i >= 0; i--, counter++)
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{
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if (x[i] == '{')
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break;
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}
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return Int32.Parse(x.Substring(x.Length - counter, counter - 1));
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}
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}
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}
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