Visual Studio Cleaner and More

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.IO;
using System.Threading;
using System.Windows.Forms;
using System.Collections.Generic;

using Timer = System.Windows.Forms.Timer;

namespace VStudioCleaner_ns
{
	/// <summary>
    /// Author: Dennis Lang - 2009
    /// http://home.comcast.net/~lang.dennis/
    /// 
    /// This application is based off of Leonardo Paneque "Solution Cleaner"
    /// http://www.teknowmagic.net/
    /// 
	/// Scan folder (directory) paths and apply filters to extract 'located' files.
	/// </summary>
	public class FileScan : System.Windows.Forms.Form
    {
        private IContainer components;

        string pathList;
        ArrayList filterList;
        int maxFileList;

		private System.Windows.Forms.Panel panel1;
		private System.Windows.Forms.PictureBox pictureBox1;
        private System.Windows.Forms.Label infoLbl;
		private System.Windows.Forms.Label label3;
		private System.Windows.Forms.Label label4;
		private System.Windows.Forms.Label totalFilesLabel;
		private System.Windows.Forms.Label totalBytesLabel;
		private System.Windows.Forms.MenuItem RemoveMenuItem;
        private System.Windows.Forms.ProgressBar ProgressMon;
		private System.Windows.Forms.Button DelFilesBtn;
        private System.Windows.Forms.Button StopBtn;
        private ListView filesListview;
        private ColumnHeader columnHeader0;
        private ColumnHeader columnHeader1;
        private ColumnHeader columnHeader2;
        private ColumnHeader columnHeader3;
        private ColumnHeader columnHeader4;
        private ColumnHeader columnHeader5;
        private ToolTip toolTip;
        private MenuItem menuItem1;
        private MenuItem menuItem2;
        private Button exportBtn;
        private SaveFileDialog exportCsvDialog;
        private TableLayoutPanel btnTable;
        private Button closeBtn;
        private Label label1;
        private TextBox selFilterBox;
        private MenuItem RemoveInvMenuItem;
        private MenuItem deleteNowMenuItem;
        private System.Windows.Forms.ContextMenu FileListContextMenu;

		public FileScan(string paths, ArrayList filterList, int maxFileList)
		{
            this.pathList = paths;
            this.filterList = filterList;
            this.maxFileList = maxFileList;
			
			//
			// Required for Windows Form Designer support
			//
			InitializeComponent();
            this.filesListview.ListViewItemSorter = new ListViewColumnSorter(ListViewColumnSorter.SortDataType.eAuto);
		}

		/// <summary>
		/// Clean up any resources being used.
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if(components != null)
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows Form Designer generated code
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
            this.components = new System.ComponentModel.Container();
            System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(FileScan));
            this.DelFilesBtn = new System.Windows.Forms.Button();
            this.FileListContextMenu = new System.Windows.Forms.ContextMenu();
            this.RemoveMenuItem = new System.Windows.Forms.MenuItem();
            this.RemoveInvMenuItem = new System.Windows.Forms.MenuItem();
            this.deleteNowMenuItem = new System.Windows.Forms.MenuItem();
            this.menuItem1 = new System.Windows.Forms.MenuItem();
            this.menuItem2 = new System.Windows.Forms.MenuItem();
            this.StopBtn = new System.Windows.Forms.Button();
            this.ProgressMon = new System.Windows.Forms.ProgressBar();
            this.panel1 = new System.Windows.Forms.Panel();
            this.infoLbl = new System.Windows.Forms.Label();
            this.pictureBox1 = new System.Windows.Forms.PictureBox();
            this.label3 = new System.Windows.Forms.Label();
            this.label4 = new System.Windows.Forms.Label();
            this.totalFilesLabel = new System.Windows.Forms.Label();
            this.totalBytesLabel = new System.Windows.Forms.Label();
            this.filesListview = new System.Windows.Forms.ListView();
            this.columnHeader0 = new System.Windows.Forms.ColumnHeader();
            this.columnHeader1 = new System.Windows.Forms.ColumnHeader();
            this.columnHeader2 = new System.Windows.Forms.ColumnHeader();
            this.columnHeader3 = new System.Windows.Forms.ColumnHeader();
            this.columnHeader4 = new System.Windows.Forms.ColumnHeader();
            this.columnHeader5 = new System.Windows.Forms.ColumnHeader();
            this.toolTip = new System.Windows.Forms.ToolTip(this.components);
            this.exportBtn = new System.Windows.Forms.Button();
            this.closeBtn = new System.Windows.Forms.Button();
            this.exportCsvDialog = new System.Windows.Forms.SaveFileDialog();
            this.btnTable = new System.Windows.Forms.TableLayoutPanel();
            this.label1 = new System.Windows.Forms.Label();
            this.selFilterBox = new System.Windows.Forms.TextBox();
            this.panel1.SuspendLayout();
            ((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).BeginInit();
            this.btnTable.SuspendLayout();
            this.SuspendLayout();
            // 
            // DelFilesBtn
            // 
            this.DelFilesBtn.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
            this.DelFilesBtn.AutoSize = true;
            this.DelFilesBtn.BackColor = System.Drawing.SystemColors.Highlight;
            this.DelFilesBtn.Enabled = false;
            this.DelFilesBtn.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
            this.DelFilesBtn.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
            this.DelFilesBtn.ForeColor = System.Drawing.Color.White;
            this.DelFilesBtn.Location = new System.Drawing.Point(3, 4);
            this.DelFilesBtn.Name = "DelFilesBtn";
            this.DelFilesBtn.RightToLeft = System.Windows.Forms.RightToLeft.No;
            this.DelFilesBtn.Size = new System.Drawing.Size(86, 25);
            this.DelFilesBtn.TabIndex = 0;
            this.DelFilesBtn.Text = "Delete Files";
            this.toolTip.SetToolTip(this.DelFilesBtn, "Warning - deletes ALL files in list above.  ");
            this.DelFilesBtn.UseVisualStyleBackColor = false;
            this.DelFilesBtn.Click += new System.EventHandler(this.deleteBtn_Click);
            // 
            // FileListContextMenu
            // 
            this.FileListContextMenu.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
            this.RemoveMenuItem,
            this.RemoveInvMenuItem,
            this.deleteNowMenuItem,
            this.menuItem1,
            this.menuItem2});
            // 
            // RemoveMenuItem
            // 
            this.RemoveMenuItem.Index = 0;
            this.RemoveMenuItem.Text = "Remove from list";
            this.RemoveMenuItem.Click += new System.EventHandler(this.RemoveMenuItem_Click);
            // 
            // RemoveInvMenuItem
            // 
            this.RemoveInvMenuItem.Index = 1;
            this.RemoveInvMenuItem.Text = "Invert selection";
            this.RemoveInvMenuItem.Click += new System.EventHandler(this.InvMenuItem_Click);
            // 
            // deleteNowMenuItem
            // 
            this.deleteNowMenuItem.Index = 2;
            this.deleteNowMenuItem.Text = "Delete from Disk NOW!";
            this.deleteNowMenuItem.Click += new System.EventHandler(this.DeleteNowMenuItem_Click);
            // 
            // menuItem1
            // 
            this.menuItem1.Index = 3;
            this.menuItem1.Text = "Launch file explorer";
            this.menuItem1.Click += new System.EventHandler(this.LaunchExplorer_Click);
            // 
            // menuItem2
            // 
            this.menuItem2.Index = 4;
            this.menuItem2.Text = "Launch cmd";
            this.menuItem2.Click += new System.EventHandler(this.LaunchCmd_Click);
            // 
            // StopBtn
            // 
            this.StopBtn.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
            this.StopBtn.AutoSize = true;
            this.StopBtn.BackColor = System.Drawing.SystemColors.Highlight;
            this.StopBtn.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
            this.StopBtn.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
            this.StopBtn.ForeColor = System.Drawing.Color.White;
            this.StopBtn.Location = new System.Drawing.Point(455, 4);
            this.StopBtn.Name = "StopBtn";
            this.StopBtn.Size = new System.Drawing.Size(75, 25);
            this.StopBtn.TabIndex = 2;
            this.StopBtn.Text = "Stop";
            this.toolTip.SetToolTip(this.StopBtn, "Stop active scan or deletion.\r\n\r\n");
            this.StopBtn.UseVisualStyleBackColor = false;
            this.StopBtn.Click += new System.EventHandler(this.stopBtn_Click);
            // 
            // ProgressMon
            // 
            this.ProgressMon.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
                        | System.Windows.Forms.AnchorStyles.Right)));
            this.ProgressMon.Location = new System.Drawing.Point(18, 102);
            this.ProgressMon.Maximum = 26;
            this.ProgressMon.Name = "ProgressMon";
            this.ProgressMon.Size = new System.Drawing.Size(905, 22);
            this.ProgressMon.TabIndex = 13;
            this.ProgressMon.Visible = false;
            // 
            // panel1
            // 
            this.panel1.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
                        | System.Windows.Forms.AnchorStyles.Right)));
            this.panel1.BackColor = System.Drawing.Color.White;
            this.panel1.BackgroundImage = ((System.Drawing.Image)(resources.GetObject("panel1.BackgroundImage")));
            this.panel1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
            this.panel1.Controls.Add(this.infoLbl);
            this.panel1.Controls.Add(this.pictureBox1);
            this.panel1.Location = new System.Drawing.Point(0, 0);
            this.panel1.Name = "panel1";
            this.panel1.Size = new System.Drawing.Size(948, 72);
            this.panel1.TabIndex = 8;
            // 
            // infoLbl
            // 
            this.infoLbl.BackColor = System.Drawing.Color.White;
            this.infoLbl.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
            this.infoLbl.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
            this.infoLbl.ForeColor = System.Drawing.Color.Black;
            this.infoLbl.Location = new System.Drawing.Point(11, 16);
            this.infoLbl.Name = "infoLbl";
            this.infoLbl.Size = new System.Drawing.Size(487, 42);
            this.infoLbl.TabIndex = 0;
            this.infoLbl.Text = "Right click on items to remove before pressing Delete.  Delete is permanent so ma" +
                "ke sure the file list is correct ! Nothing moved to recycle bin";
            // 
            // pictureBox1
            // 
            this.pictureBox1.BackColor = System.Drawing.Color.Transparent;
            this.pictureBox1.BackgroundImage = ((System.Drawing.Image)(resources.GetObject("pictureBox1.BackgroundImage")));
            this.pictureBox1.BackgroundImageLayout = System.Windows.Forms.ImageLayout.Zoom;
            this.pictureBox1.Location = new System.Drawing.Point(525, 16);
            this.pictureBox1.Name = "pictureBox1";
            this.pictureBox1.Size = new System.Drawing.Size(76, 50);
            this.pictureBox1.TabIndex = 1;
            this.pictureBox1.TabStop = false;
            // 
            // label3
            // 
            this.label3.AutoSize = true;
            this.label3.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
            this.label3.Location = new System.Drawing.Point(16, 86);
            this.label3.Name = "label3";
            this.label3.Size = new System.Drawing.Size(78, 13);
            this.label3.TabIndex = 9;
            this.label3.Text = "Total Files : ";
            // 
            // label4
            // 
            this.label4.AutoSize = true;
            this.label4.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
            this.label4.Location = new System.Drawing.Point(216, 86);
            this.label4.Name = "label4";
            this.label4.Size = new System.Drawing.Size(88, 13);
            this.label4.TabIndex = 10;
            this.label4.Text = "Total Space : ";
            // 
            // totalFilesLabel
            // 
            this.totalFilesLabel.AutoSize = true;
            this.totalFilesLabel.Location = new System.Drawing.Point(92, 86);
            this.totalFilesLabel.Name = "totalFilesLabel";
            this.totalFilesLabel.Size = new System.Drawing.Size(13, 13);
            this.totalFilesLabel.TabIndex = 11;
            this.totalFilesLabel.Text = "0";
            // 
            // totalBytesLabel
            // 
            this.totalBytesLabel.AutoSize = true;
            this.totalBytesLabel.Location = new System.Drawing.Point(299, 86);
            this.totalBytesLabel.Name = "totalBytesLabel";
            this.totalBytesLabel.Size = new System.Drawing.Size(13, 13);
            this.totalBytesLabel.TabIndex = 12;
            this.totalBytesLabel.Text = "0";
            // 
            // filesListview
            // 
            this.filesListview.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
                        | System.Windows.Forms.AnchorStyles.Left)
                        | System.Windows.Forms.AnchorStyles.Right)));
            this.filesListview.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
            this.filesListview.Columns.AddRange(new System.Windows.Forms.ColumnHeader[] {
            this.columnHeader0,
            this.columnHeader1,
            this.columnHeader2,
            this.columnHeader3,
            this.columnHeader4,
            this.columnHeader5});
            this.filesListview.ContextMenu = this.FileListContextMenu;
            this.filesListview.FullRowSelect = true;
            this.filesListview.GridLines = true;
            this.filesListview.HideSelection = false;
            this.filesListview.Location = new System.Drawing.Point(19, 130);
            this.filesListview.Name = "filesListview";
            this.filesListview.Size = new System.Drawing.Size(904, 389);
            this.filesListview.TabIndex = 1;
            this.filesListview.UseCompatibleStateImageBehavior = false;
            this.filesListview.View = System.Windows.Forms.View.Details;
            this.filesListview.SelectedIndexChanged += new System.EventHandler(this.filesListview_SelectedIndexChanged);
            this.filesListview.ColumnClick += new System.Windows.Forms.ColumnClickEventHandler(this.ColumnClick);
            this.filesListview.KeyUp += new System.Windows.Forms.KeyEventHandler(this.filesListview_KeyUp);
            // 
            // columnHeader0
            // 
            this.columnHeader0.Text = "Why";
            this.columnHeader0.Width = 70;
            // 
            // columnHeader1
            // 
            this.columnHeader1.Text = "Location";
            this.columnHeader1.Width = 400;
            // 
            // columnHeader2
            // 
            this.columnHeader2.Text = "File";
            this.columnHeader2.Width = 200;
            // 
            // columnHeader3
            // 
            this.columnHeader3.Text = "Ext";
            // 
            // columnHeader4
            // 
            this.columnHeader4.Text = "Size";
            // 
            // columnHeader5
            // 
            this.columnHeader5.Text = "Status";
            // 
            // exportBtn
            // 
            this.exportBtn.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
            this.exportBtn.AutoSize = true;
            this.exportBtn.BackColor = System.Drawing.SystemColors.Highlight;
            this.exportBtn.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
            this.exportBtn.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
            this.exportBtn.ForeColor = System.Drawing.Color.White;
            this.exportBtn.Location = new System.Drawing.Point(229, 4);
            this.exportBtn.Name = "exportBtn";
            this.exportBtn.Size = new System.Drawing.Size(121, 25);
            this.exportBtn.TabIndex = 14;
            this.exportBtn.Text = "Export Files List...";
            this.toolTip.SetToolTip(this.exportBtn, "Export file list as CSV");
            this.exportBtn.UseVisualStyleBackColor = false;
            this.exportBtn.Click += new System.EventHandler(this.exportBtn_Click);
            // 
            // closeBtn
            // 
            this.closeBtn.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
            this.closeBtn.AutoSize = true;
            this.closeBtn.BackColor = System.Drawing.SystemColors.Highlight;
            this.closeBtn.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
            this.closeBtn.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
            this.closeBtn.ForeColor = System.Drawing.Color.White;
            this.closeBtn.Location = new System.Drawing.Point(681, 4);
            this.closeBtn.Name = "closeBtn";
            this.closeBtn.Size = new System.Drawing.Size(75, 25);
            this.closeBtn.TabIndex = 15;
            this.closeBtn.Text = "Close";
            this.toolTip.SetToolTip(this.closeBtn, "Close Dialog");
            this.closeBtn.UseVisualStyleBackColor = false;
            this.closeBtn.Click += new System.EventHandler(this.closeBtn_Click);
            // 
            // exportCsvDialog
            // 
            this.exportCsvDialog.DefaultExt = "csv";
            this.exportCsvDialog.Filter = "Csv|*.csv|Text|*.txt|All Files|*.*";
            this.exportCsvDialog.Title = "Export File List";
            // 
            // btnTable
            // 
            this.btnTable.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)
                        | System.Windows.Forms.AnchorStyles.Right)));
            this.btnTable.ColumnCount = 4;
            this.btnTable.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 25F));
            this.btnTable.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 25F));
            this.btnTable.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 25F));
            this.btnTable.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 25F));
            this.btnTable.Controls.Add(this.closeBtn, 3, 0);
            this.btnTable.Controls.Add(this.StopBtn, 2, 0);
            this.btnTable.Controls.Add(this.exportBtn, 1, 0);
            this.btnTable.Controls.Add(this.DelFilesBtn, 0, 0);
            this.btnTable.GrowStyle = System.Windows.Forms.TableLayoutPanelGrowStyle.FixedSize;
            this.btnTable.Location = new System.Drawing.Point(19, 525);
            this.btnTable.Name = "btnTable";
            this.btnTable.RowCount = 1;
            this.btnTable.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Percent, 100F));
            this.btnTable.Size = new System.Drawing.Size(904, 32);
            this.btnTable.TabIndex = 15;
            // 
            // label1
            // 
            this.label1.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
            this.label1.Location = new System.Drawing.Point(19, 102);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(167, 20);
            this.label1.TabIndex = 16;
            this.label1.Text = "Selection Filter (ex: *.xml):";
            // 
            // selFilterBox
            // 
            this.selFilterBox.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
                        | System.Windows.Forms.AnchorStyles.Right)));
            this.selFilterBox.HideSelection = false;
            this.selFilterBox.Location = new System.Drawing.Point(192, 103);
            this.selFilterBox.Name = "selFilterBox";
            this.selFilterBox.Size = new System.Drawing.Size(730, 20);
            this.selFilterBox.TabIndex = 17;
            this.selFilterBox.TextChanged += new System.EventHandler(this.selFilterBox_TextChanged);
            // 
            // FileScan
            // 
            this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
            this.BackColor = System.Drawing.Color.Silver;
            this.ClientSize = new System.Drawing.Size(948, 566);
            this.Controls.Add(this.btnTable);
            this.Controls.Add(this.filesListview);
            this.Controls.Add(this.totalBytesLabel);
            this.Controls.Add(this.totalFilesLabel);
            this.Controls.Add(this.label4);
            this.Controls.Add(this.label3);
            this.Controls.Add(this.panel1);
            this.Controls.Add(this.ProgressMon);
            this.Controls.Add(this.selFilterBox);
            this.Controls.Add(this.label1);
            this.Icon = ((System.Drawing.Icon)(resources.GetObject("$this.Icon")));
            this.Name = "FileScan";
            this.ShowInTaskbar = false;
            this.SizeGripStyle = System.Windows.Forms.SizeGripStyle.Show;
            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent;
            this.Text = "Located Files";
            this.Load += new System.EventHandler(this.LocateFiles);
            this.Closing += new System.ComponentModel.CancelEventHandler(this.ClosingEvent);
            this.panel1.ResumeLayout(false);
            ((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).EndInit();
            this.btnTable.ResumeLayout(false);
            this.btnTable.PerformLayout();
            this.ResumeLayout(false);
            this.PerformLayout();

		}
		#endregion


        #region ==== Support methods
        /// <summary>
        /// Format size into Bytes, Kbytes or Mbytes.
        /// </summary>
        /// <param name="val"></param>
        /// <returns></returns>
        public static string FormatSize(long val)
        {
            const long MByte = 1024 * 1024;
            if (val < 1024)
            {
                return val + " Bytes";
            }
            else if (val >= 1024 && val < MByte)
            {
                return val / 1024 + " KBytes";
            }
            else
            {
                return Math.Round((double)(val) / MByte, 2) + " MBytes";
            }
        }

        private void ClosingEvent(object sender, System.ComponentModel.CancelEventArgs e)
        {
            if (working)
                e.Cancel = true;
        }

        #endregion

        #region ==== Thread to Locate Files
        bool working = false;
        bool isScanDone = false;
        bool cancel = false;

        Queue InfoQueue = new Queue();

        Thread thread;
		Timer timer;
        ArrayList subDirList;
        ArrayList extList;
        ArrayList patternList;
        ArrayList excludeList;
        ArrayList neverList;
        struct WhyInfo
        {
            public string why;
            public Color fg, bg;
        };
        Dictionary<string, WhyInfo> key_why = new Dictionary<string, WhyInfo>();      

        /// <summary>
        /// Scan folders and isolated those matching filters.
        /// </summary>
		private void LocateFiles(object sender, System.EventArgs e)
		{
            subDirList = new ArrayList();
            extList = new ArrayList();
            patternList = new ArrayList();
            excludeList = new ArrayList();
            neverList = new ArrayList();

            ThreadWorking(false);

            // Separate filters into four types, exclude, directory, extension or wildcards
            //
            //  Syntax          Description         Examples
            //  -xxxxx          Exclude pattern     -*.exe  or   -*sdk/
            //  xxxxx/          Directory name      bin/    or   Release/     
            //  .xxx            File extension      .obj    or   .suo
            //  xxxx            wildcard            connect*.xml
            //
            foreach (ListViewItem item in this.filterList)
            {
                string action = item.SubItems[1].Text.ToLower();
                string[] sList = action.Split(';');
                foreach (string s in sList)
                {
                    if (s.Length == 0)
                        continue;
                    WhyInfo why = new WhyInfo() { why = item.Text, fg = item.ForeColor, bg = item.BackColor };
                    if (s[0] == '-')
                    {
                        if (item.Text.ToLower().StartsWith("never"))
                        {
                            neverList.Add(s);
                        }
                        else
                        {
                            excludeList.Add(s);
                            key_why.Add(s, why);
                        }
                    }
                    else
                    {
                        int n = s.Length;
                        if (n > 0 && s[n - 1] == '\\')
                        {
                            string d = s.TrimEnd('\\');
                            subDirList.Add(d);
                            key_why.Add(d, why);
                        }
                        else
                        {
                            if (s[0] == '.')
                                extList.Add(s);
                            else
                                patternList.Add(s);
                            key_why.Add(s, why);
                        }
                    }
                }
            }

            ThreadWorking(true);

            ProgressMon.Visible = true;
            ProgressMon.Minimum = 0;
            ProgressMon.Maximum = 100;

			thread = new Thread(new ThreadStart(scanFilesThread));
			thread.Start();
			timer = new Timer();
			timer.Tick+=new EventHandler(fileScanTimer_Tick);
			timer.Interval = 1000;
			timer.Enabled = true;
		}

        private void ThreadWorking(bool w)
        {
            this.working = w;
            this.StopBtn.Enabled = w;
            this.ProgressMon.Visible = w;

            // Disable a bunch of buttons while working.
            this.closeBtn.Enabled = !w;
            this.DelFilesBtn.Enabled = !w;
            this.exportBtn.Enabled = !w;

            if (filesListview.Items.Count == 0)
                this.filesListview.AutoResizeColumns(ColumnHeaderAutoResizeStyle.HeaderSize);
            else
            {
                this.filesListview.AutoResizeColumns(ColumnHeaderAutoResizeStyle.ColumnContent);
                this.filesListview.Invalidate();
                this.filesListview.AutoResizeColumns(ColumnHeaderAutoResizeStyle.None);
                foreach (ColumnHeader colHeader in this.filesListview.Columns)
                {
                    if (colHeader.Width < colHeader.Text.Length * 12)
                        colHeader.Width = colHeader.Text.Length * 12;
                }
            }
        }

        private string errorMsg;

		private void scanFilesThread()
		{
			try
			{
                errorMsg = string.Empty;
                cancel = false;
                foreach (string path in this.pathList.Split(';'))
                {
                    if (Directory.Exists(path))
                        WalkFolder(path);
                }
			}
			catch (ThreadAbortException e)
			{
                errorMsg = "Operation cancelled by user";
			}
			catch (Exception e)
			{
                errorMsg = "Error ocurred while scanning folders: " + e.Message;
			}
			finally
			{
                isScanDone = true;				
			}

            working = false;
		}

        /// <summary>
        /// File Find compare supports simple '*' wildcard pattern.
        /// Returns true if pattern matches even if raw text has more characters.
        /// </summary>
        /// <returns>true for partial match</returns>
        private bool WildCompare(string wildStr, int wildOff, string rawStr, int rawOff)
        {
            while (wildOff != wildStr.Length)
            {
                if (rawOff == rawStr.Length)
                    return (wildStr[wildOff] == '*');

                if (wildStr[wildOff] == '*')
                {
                    if (wildOff + 1 == wildStr.Length)
                        return true;

                    do
                    {
                        // Find match with char after '*'
                        while (rawOff < rawStr.Length &&
                            char.ToLower(rawStr[rawOff]) != char.ToLower(wildStr[wildOff + 1]))
                            rawOff++;
                        if (rawOff < rawStr.Length &&
                            WildCompare(wildStr, wildOff + 1, rawStr, rawOff))
                            return true;
                        ++rawOff;
                    } while (rawOff < rawStr.Length);

                    if (rawOff >= rawStr.Length)
                        return (wildStr[wildOff + 1] == '*');
                }
                else
                {
                    if (char.ToLower(rawStr[rawOff]) != char.ToLower(wildStr[wildOff]))
                        return false;
                    if (wildStr.Length == wildOff)
                        return true;
                    ++rawOff;
                }

                ++wildOff;
            }

            return true;
        }

        WhyInfo Why(string key)
        {
            WhyInfo whyInfo;
            key_why.TryGetValue(key, out whyInfo);
            return whyInfo;
        }

        const string neverStr = "never";
        bool Exclude(string file, string why)
        {
            foreach (string p in excludeList)
            {
                if ((Why(p).why == why || why.StartsWith(neverStr)) && 
                    WildCompare(p, 1, file, 0))
                {
                    return true;
                }
            }

            return false;
        }

		long TotalBytes = 0;
		long TotalFiles = 0;

		public void WalkFolder(string folder)
		{
            if (this.cancel)
                return; 

            string[] folderParts = folder.Split(Path.DirectorySeparatorChar);
            int n = folderParts.Length;
            string lastDir = folderParts[n - 1].ToLower();

            // Scan directories for match
            foreach (string dir in subDirList)
            {
                if (lastDir == dir && !Exclude(dir, Why(dir).why))              
                {
                    AddFileToList(folder, Why(dir));    // actually adding a directory
                    AddAllFilesInFolder(folder, Why(dir));
                    // return;
                }
            }

            ArrayList fileList = new ArrayList();
            try
            {
                fileList.AddRange(Directory.GetFiles(folder, "*"));
            }
            catch { };

            // Scan files for match
            foreach (string file in fileList)
            {
                string fileLC = file.ToLower();
                string ext = Path.GetExtension(fileLC);

                if (extList.Contains(ext) && !Exclude(fileLC, Why(ext).why))
                {
                    AddFileToList(file, Why(ext));
                    continue;
                }

                foreach (string p in patternList)
                {
                    if (WildCompare(p, 0, fileLC, 0) && !Exclude(fileLC, Why(p).why))
                    {
                        AddFileToList(file, Why(p));
                        break;
                    }
                }
            }

			string[] directories = Directory.GetDirectories(folder);
			foreach (string directory in directories)
			{
				try
				{
					WalkFolder(directory);
				}
				catch (Exception e)
				{
					Console.Write(e);
				}
			}
		}

        public ArrayList GetAllFiles(string path)
        {
            ArrayList result = new ArrayList();
            result.AddRange(Directory.GetFiles(path, "*"));
            string[] directories = Directory.GetDirectories(path);
            foreach (string directory in directories)
            {
                result.Add(directory); 
                result.AddRange(GetAllFiles(directory));
            }
            return result;
        }

        private void AddAllFilesInFolder(string path, WhyInfo why)
		{
			ArrayList allfiles = GetAllFiles(path);
			foreach (string s in allfiles)
			{
				AddFileToList(s, why);				
			}
		}

		private void AddFileToList(string file, WhyInfo why)
		{
            foreach (string p in neverList)
            {
                if (WildCompare(p, 1, file, 0))
                    return;
            }

			lock(InfoQueue.SyncRoot)
			{
                FileWhy fw = new FileWhy();
                fw.file = file;
                fw.why  = why;
                InfoQueue.Enqueue(fw);
			}
		}

        class FileWhy
        {
            public string file;
            public WhyInfo why;
        };


        /// <summary>
        /// Copy background files into foreground ListView
        /// </summary>
        private void fileScanTimer_Tick(object sender, EventArgs e)
		{
            ProgressMon.Value = (ProgressMon.Value + 1) % 100;

            lock(InfoQueue.SyncRoot)
            {
                this.filesListview.BeginUpdate();
				while (InfoQueue.Count > 0)
            	{
					//get the string info
                    FileWhy fw = InfoQueue.Dequeue() as FileWhy;
					
					//create the listviewitem
                    ListViewItem item = filesListview.Items.Add(fw.why.why);  // 0
                    item.Tag = fw.file;
                    item.SubItems.Add(Path.GetDirectoryName(fw.file));    // 1
                    item.SubItems.Add(Path.GetFileName(fw.file));         // 2
                    item.SubItems.Add(Path.GetExtension(fw.file));        // 3
                    item.SubItems.Add("0");       // length               // 4
                    item.SubItems.Add(" ");       // status               // 5
                    item.BackColor = fw.why.bg;
                    item.ForeColor = fw.why.fg;

            		try
            		{
                        FileInfo info = new FileInfo(fw.file);
						TotalBytes += info.Length;
                        item.SubItems[4].Text = info.Length.ToString();
            		}
            		catch (Exception e1)
            		{
                        try
                        {
                            DirectoryInfo info = new DirectoryInfo(fw.file);
                            if (info.Exists)
                            {
                                // Directory item
                                item.SubItems[5].Text = "dir";
                                if (item.BackColor == filesListview.BackColor &&
                                    item.ForeColor == filesListview.ForeColor)
                                item.BackColor = Color.LightBlue;
                            }
                        }
                        catch
                        {
                            // Unknown file object
                            item.ForeColor = Color.Red;
                            item.BackColor = filesListview.BackColor;
                            item.SubItems[5].Text = e1.Message;
                        }
            		}

                    TotalFiles++;
                    if (maxFileList > 0 && TotalFiles >= maxFileList)
                    {
                        item = filesListview.Items.Add("Limit");  // why
                        item.ForeColor = Color.Red;
                        item.BackColor = filesListview.BackColor;
                        item.Tag = string.Empty;
                        item.SubItems.Add("File Limit reached, see options menu");
                        item.SubItems.Add(" ");  // file
                        item.SubItems.Add(" ");  // ext
                        item.SubItems.Add("0");  // size
                        item.SubItems.Add(" ");  // status
                        stopBtn_Click(null, EventArgs.Empty);
                        break;
                    }

					totalBytesLabel.Text = FormatSize(TotalBytes);
					totalFilesLabel.Text = TotalFiles.ToString();
            	}
                this.filesListview.EndUpdate();
            }

            if (!working)
            {
                ThreadWorking(working);
                timer.Stop();

                if (isScanDone)
                {
                    if (errorMsg.Length != 0)
                    {
                        bool isError = errorMsg.StartsWith("Error");
                        MessageBox.Show(errorMsg, isError ? "Error" : "Info", 
                            MessageBoxButtons.OK, 
                            isError ? MessageBoxIcon.Error : MessageBoxIcon.Information);
                    }

                    if (TotalFiles > 0)
                    {
                        DelFilesBtn.Enabled = true;
                    }
                    else
                    {
                        isScanDone = false;
                        MessageBox.Show(this, "There are no files to be deleted on this folder", "Ups!");
                        this.Close();
                    }
                }
            }
        }

        // Stop action (background thread or foreground deletion)
		private void stopBtn_Click(object sender, System.EventArgs e)
		{
            cancel = true;
            // if (thread.IsAlive)
			//    thread.Abort();
			// timer.Enabled = false;
        }
        #endregion

        #region ==== Delete file methods
        private void deleteBtn_Click(object sender, System.EventArgs e)
		{
			string msg = string.Format("You are about to delete {0} files and free up {1} of space, do you want to proceed?",
                TotalFiles,FormatSize(TotalBytes));
			if (DialogResult.Yes != 
                MessageBox.Show(this, msg, "Confirmation", MessageBoxButtons.YesNo, MessageBoxIcon.Warning)) 
                return;

            ThreadWorking(true);
            cancel = false;
			DelFilesBtn.Enabled = false;
            ProgressMon.Minimum = 0;
            ProgressMon.Maximum = filesListview.Items.Count + 1;

            DeleteFiles(false);

            ThreadWorking(false);
        }

		private void DeleteFiles(bool onlySelected)
		{
			try
			{
                bool anyDir = false;

                // Delete files.
				foreach (ListViewItem item in filesListview.Items)
				{
                    if (onlySelected && filesListview.SelectedItems.Contains(item) == false)
                        continue;

                    // Allow window event such as pressing cancel button to get processed.
                    Application.DoEvents();

                    ProgressMon.Value = (ProgressMon.Value + 1) % ProgressMon.Maximum;

					if (cancel) 
                        return;
					try
					{
                        if (item.SubItems[5].Text != "dir")
                        {
                            File.Delete(item.Tag as string);
                            RemoveFileFromList(item);
                        }
                        else
                            anyDir = true;
					}
					catch (Exception e)
					{
                        // Failed to delete file, maybe in use or protected.
						item.ForeColor = Color.Red;
                        item.BackColor = filesListview.BackColor;
                        if (item.SubItems.Count < 6)
                            item.SubItems.Add(e.Message);
                        else
                            item.SubItems[5].Text = e.Message;
					}
				}

                if (anyDir)
                {
                    // sort by directory name in decending order
                    ListViewColumnSorter sorter = this.filesListview.ListViewItemSorter as ListViewColumnSorter;
                    sorter.Order = SortOrder.Descending;
                    sorter.SortColumn = 1;  // directory column
                    this.filesListview.Sort();

                    // Delete Directories
                    foreach (ListViewItem item in filesListview.Items)
                    {
                        if (onlySelected && filesListview.SelectedItems.Contains(item) == false)
                            continue;

                        // Allow window event such as pressing cancel button to get processed.
                        Application.DoEvents();

                        ProgressMon.Value = (ProgressMon.Value + 1) % ProgressMon.Maximum;

                        if (cancel)
                            return;
                        try
                        {
                            if (item.SubItems[5].Text == "dir")
                            {
                                Directory.Delete(item.Tag as string);
                                RemoveFileFromList(item);
                            }
                        }
                        catch (Exception e)
                        {
                            // Failed to delete file, maybe in use or protected.
                            item.ForeColor = Color.Red;
                            item.BackColor = filesListview.BackColor;
                            if (item.SubItems.Count < 6)
                                item.SubItems.Add(e.Message);
                            else
                                item.SubItems[5].Text = e.Message;
                        }
                    }
                }
			}
			finally
			{
                ThreadWorking(false);

                if (cancel || filesListview.Items.Count > 0)
				{
					DelFilesBtn.Enabled = true;
					ProgressMon.Visible = false;
					ProgressMon.Minimum = 0;
                    ProgressMon.Maximum = filesListview.Items.Count + 1;
				}
				else
				{
					infoLbl.Text = "Done deleting files";
				}
			}
        }

        #region ==== Context popup menu items
        private void RemoveFileFromList(ListViewItem item)
		{
            if (item.SubItems[5].Text != "dir")
			    TotalFiles--;

            try
            {
                if (item.SubItems[4].Text != null)
                    TotalBytes -= int.Parse(item.SubItems[4].Text);
            }
            catch { }

			totalBytesLabel.Text = FormatSize(TotalBytes);
			totalFilesLabel.Text = TotalFiles.ToString();

            filesListview.Items.Remove(item);
        }

        private void RemoveMenuItem_Click(object sender, System.EventArgs e)
        {
            foreach (ListViewItem item in filesListview.SelectedItems)
            {
                RemoveFileFromList(item);
            }
        } 

        private void InvMenuItem_Click(object sender, EventArgs e)
        {
            if (filesListview.SelectedItems.Count != 0)
            {
                this.selFilterBox.Text = "";
                this.doSelectChange = false;

                foreach (ListViewItem item in filesListview.Items)
                {
                    item.Selected = !filesListview.SelectedItems.Contains(item);
                }
                this.doSelectChange = true;
            }
        }

        // Deleted selected items 'now'.
        private void DeleteNowMenuItem_Click(object sender, EventArgs e)
        {
            string msg = "Are you sure you want to delete " +
                filesListview.SelectedItems.Count.ToString() + " selected items";

           if (DialogResult.Yes != 
                MessageBox.Show(this, msg, "Confirmation", MessageBoxButtons.YesNo, MessageBoxIcon.Warning)) 
                return;

            DeleteFiles(true);
        }

        private void LaunchExplorer_Click(object sender, EventArgs e)
        {
            if (filesListview.SelectedItems.Count != 0)
            {
                ListViewItem item = filesListview.SelectedItems[0];
                string dir = Path.GetDirectoryName(item.Tag as string);
                System.Diagnostics.Process.Start("explorer.exe", dir);
            }
        }

        private void LaunchCmd_Click(object sender, EventArgs e)
        {
            if (filesListview.SelectedItems.Count != 0)
            {
                ListViewItem item = filesListview.SelectedItems[0];
                string dir = Path.GetDirectoryName(item.Tag as string);
                System.Diagnostics.Process.Start("cmd.exe", "/k cd \"" + dir + "\"");
            }
        }
        #endregion

 

		private void filesListview_KeyUp(object sender, System.Windows.Forms.KeyEventArgs e)
		{
			if (e.KeyCode == Keys.Delete) 
                RemoveMenuItem_Click(null, null);
            else if (e.KeyCode == Keys.A && e.Modifiers == Keys.Control)
            {
                selFilterBox.Text = "";
                foreach (ListViewItem item in filesListview.Items)
                {
                    item.Selected = true;
                }
            }
        }

        #endregion

        /// <summary>
        /// Column header click fires sort.
        /// </summary>
        private void ColumnClick(object sender, ColumnClickEventArgs e)
        {
            ListView listView = sender as ListView;
            ListViewColumnSorter sorter = listView.ListViewItemSorter as ListViewColumnSorter;

            // Determine if clicked column is already the column that is being sorted.
            if (e.Column == sorter.SortColumn)
            {
                // Reverse the current sort direction for this column.
                if (sorter.Order == SortOrder.Ascending)
                    sorter.Order = SortOrder.Descending;
                else
                    sorter.Order = SortOrder.Ascending;
            }
            else
            {
                // Set the column number that is to be sorted; default to ascending.
                sorter.SortColumn = e.Column;
                sorter.Order = SortOrder.Ascending;
            }

            // Perform the sort with these new sort options.
            if (listView != null)
                listView.Sort();
        }

        /// <summary>
        ///  Save ListView contents in as a CSV file.
        /// </summary>
        private void exportBtn_Click(object sender, EventArgs e)
        {
            if (filesListview == null || filesListview.Items.Count == 0)
                return;

            if (this.exportCsvDialog.ShowDialog() == DialogResult.OK)
            {
                String filePath = this.exportCsvDialog.FileName;
                TextWriter writer = new StreamWriter(filePath);

                string txtLine = string.Empty;
                foreach (ColumnHeader ch in filesListview.Columns)
                {
                    if (txtLine.Length != 0)
                        txtLine += ",";
                    txtLine += ch.Text;
                }
                writer.WriteLine(txtLine);

                foreach (ListViewItem item in filesListview.Items)
                {
                    txtLine = string.Empty;
                    foreach (ListViewItem.ListViewSubItem subItem in item.SubItems)
                    {
                        if (txtLine.Length != 0)
                            txtLine += ",";
                        txtLine += subItem.Text.Replace(',', ';');
                    }

                    writer.WriteLine(txtLine);
                }

                writer.Close();

                infoLbl.Text = "Saved list to file:" + filePath;
            }
        }

        private void closeBtn_Click(object sender, EventArgs e)
        {
            this.Close();
        }

        bool isSearching = false;
        bool stopSearch = false;
        private void selFilterBox_TextChanged(object sender, EventArgs e)
        {
            if (selFilterBox.Text.Length == 0 || selFilterBox.Text == "*")
                return;     // ignore empty filter or all match filter.

            stopSearch = true;
            while (isSearching)
                Application.DoEvents();
            
            filesListview.SelectedItems.Clear();
            FilterSelect();
        }

        private void FilterSelect()
        {
            if (selFilterBox.Text.Length == 0 || selFilterBox.Text == "*")
                return;

            doSelectChange = false;
            string[] searchList = selFilterBox.Text.Split(';');

            filesListview.BeginUpdate();
            isSearching = true;
            stopSearch = false;

            foreach (string searchFor in searchList)
            {
                if (stopSearch)
                    break;

                foreach (ListViewItem item in filesListview.Items)
                {
                    if (stopSearch)
                        break;

                    bool foundIt = false;
                    foreach (ListViewItem.ListViewSubItem subItem in item.SubItems)
                    {
                        if (subItem.Text.Length != 0 &&
                            (foundIt = WildCompare(searchFor, 0, subItem.Text, 0)))
                        {
                            break;
                        }
                    }

                    if (foundIt)
                    {
                        item.Selected = true;
                    }
                }
            }

            filesListview.EndUpdate();
            isSearching = false;
            doSelectChange = true;
        }


        private bool doSelectChange = true;
        private void filesListview_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (doSelectChange)
                FilterSelect();
        }

	}
}