path: root/win/C#/frmMain.cs

/*  frmMain.cs $
 	
 	   This file is part of the HandBrake source code.
 	   Homepage: <http://handbrake.fr/>.
 	   It may be used under the terms of the GNU General Public License. */

using System;
using System.Collections;
using System.Collections.Generic;
using System.Drawing;
using System.Windows.Forms;
using System.IO;
using System.Diagnostics;
using System.Threading;
using Handbrake.Functions;

namespace Handbrake
{
    public partial class frmMain : Form
    {
        // Objects which may be used by one or more other objects
        private delegate void UpdateWindowHandler();
        Main hb_common_func = new Main();
        Encode encodeHandler = new Encode();
        Queue.QueueHandler encodeQueue = new Queue.QueueHandler();
        Presets.PresetsHandler presetHandler = new Presets.PresetsHandler();
        Parsing.Title selectedTitle;
        Parsing.DVD thisDVD;

        // Objects belonging to this window only
        PresetLoader presetLoader = new PresetLoader();
        QueryGenerator queryGen = new QueryGenerator();

        // Globals: Mainly used for tracking.
        private frmQueue queueWindow;
        private frmPreview qtpreview;
        private string lastAction;
        public int maxWidth;
        public int maxHeight;
        Process hbproc;

        // Applicaiton Startup ************************************************

        #region Application Startup

        public frmMain()
        {
            // Load the splash screen in this thread
            Form splash = new frmSplashScreen();
            splash.Show();

            //Create a label that can be updated from the parent thread.
            Label lblStatus = new Label();
            lblStatus.Size = new Size(250, 20);
            lblStatus.Location = new Point(10, 280);
            splash.Controls.Add(lblStatus);
            InitializeComponent();

            // Update the users config file with the CLI version data.
            lblStatus.Text = "Setting Version Data ...";
            Application.DoEvents();
            ArrayList x = hb_common_func.getCliVersionData();
            Properties.Settings.Default.hb_build = int.Parse(x[1].ToString());
            Properties.Settings.Default.hb_version = x[0].ToString();

            // show the form, but leave disabled until preloading is complete then show the main form
            this.Enabled = false;
            this.Show();
            Application.DoEvents(); // Forces frmMain to draw

            // update the status
            if (Properties.Settings.Default.updateStatus == "Checked")
            {
                lblStatus.Text = "Checking for updates ...";
                Application.DoEvents();
                Thread updateCheckThread = new Thread(startupUpdateCheck);
                updateCheckThread.Start();
            }

            // Setup the GUI components
            lblStatus.Text = "Setting up the GUI ...";
            Application.DoEvents();
            x264Panel.reset2Defaults(); // Initialize all the x264 widgets to their default values
            loadPresetPanel();                       // Load the Preset Panel
            treeView_presets.ExpandAll();
            lbl_encode.Text = "";
            queueWindow = new frmQueue(encodeQueue);        // Prepare the Queue
            if (Properties.Settings.Default.QueryEditorTab != "Checked")
                tabs_panel.TabPages.RemoveAt(5); // Remove the query editor tab if the user does not want it enabled.

            // Load the user's default settings or Normal Preset
            if (Properties.Settings.Default.defaultSettings == "Checked" && Properties.Settings.Default.defaultPreset != "")
            {
                // Ok, so, we've selected a preset. Now we want to load it.
                if (presetHandler.getPreset(Properties.Settings.Default.defaultPreset) != null)
                {
                    string query = presetHandler.getPreset(Properties.Settings.Default.defaultPreset).Query;
                    Boolean loadPictureSettings = presetHandler.getPreset(Properties.Settings.Default.defaultPreset).PictureSettings;

                    if (query != null)
                    {
                        //Ok, Reset all the H264 widgets before changing the preset
                        x264Panel.reset2Defaults();

                        // Send the query from the file to the Query Parser class, then load the preset
                        Functions.QueryParser presetQuery = Functions.QueryParser.Parse(query);
                        presetLoader.presetLoader(this, presetQuery, Properties.Settings.Default.defaultPreset, loadPictureSettings);

                        // The x264 widgets will need updated, so do this now:
                        x264Panel.X264_StandardizeOptString();
                        x264Panel.X264_SetCurrentSettingsInPanel();
                    }
                }
                else
                    loadNormalPreset();
            }
            else
                loadNormalPreset();

            // Enabled GUI tooltip's if Required
            if (Properties.Settings.Default.tooltipEnable == "Checked")
            {
                x264Panel.setToolTipActive(true);
                ToolTip.Active = true;
            }

            //Finished Loading
            lblStatus.Text = "Loading Complete!";
            Application.DoEvents();
            splash.Close();
            splash.Dispose();
            this.Enabled = true;

            // Event Handlers
            events();

            // Queue Recovery
            queueRecovery();
        }

        // Startup Functions
        private delegate void updateStatusChanger();
        private void startupUpdateCheck()
        {
            try
            {
                if (InvokeRequired)
                {
                    BeginInvoke(new updateStatusChanger(startupUpdateCheck));
                    return;
                }

                Boolean update = hb_common_func.updateCheck(false);
                if (update)
                {
                    frmUpdater updateWindow = new frmUpdater();
                    updateWindow.Show();
                }
            }
            catch (Exception) { /* Do Nothing*/ }
        }
        private void queueRecovery()
        {
            if (hb_common_func.check_queue_recovery())
            {
                DialogResult result = MessageBox.Show("HandBrake has detected unfinished items on the queue from the last time the application was launched. Would you like to recover these?", "Queue Recovery Possible", MessageBoxButtons.YesNo, MessageBoxIcon.Question);

                if (result == DialogResult.Yes)
                    encodeQueue.recoverQueue("hb_queue_recovery.xml"); // Start Recovery
                else
                {
                    // Remove the Queue recovery file if the user doesn't want to recovery the last queue.
                    string queuePath = Path.Combine(Path.GetTempPath(), "hb_queue_recovery.xml");
                    if (File.Exists(queuePath))
                        File.Delete(queuePath);
                }
            }
        }
        #endregion

        #region Events
        // Encoding Events for setting up the GUI
        private void events()
        {
            // Handle Window Resize
            if (Properties.Settings.Default.MainWindowMinimize == "Checked")
                this.Resize += new EventHandler(frmMain_Resize);

            // Handle Encode Start
            encodeQueue.OnEncodeEnded += new EventHandler(encodeEnded);
            encodeQueue.OnPaused += new EventHandler(encodePaused);
            encodeQueue.OnEncodeStart += new EventHandler(encodeStarted);
        }
        private void encodeStarted(object sender, EventArgs e)
        {
            setLastAction("encode");
            setEncodeStarted();
        }
        private void encodeEnded(object sender, EventArgs e)
        {
            setEncodeFinished();
        }
        private void encodePaused(object sender, EventArgs e)
        {
            setEncodeFinished();
        }
        #endregion

        // User Interface Menus / Tool Strips *********************************

        #region File Menu
        private void mnu_killCLI_Click(object sender, EventArgs e)
        {
            killCLI();
        }
        private void mnu_exit_Click(object sender, EventArgs e)
        {
            Application.Exit();
        }
        #endregion

        #region Tools Menu
        private void mnu_encode_Click(object sender, EventArgs e)
        {
            queueWindow.setQueue();
            queueWindow.Show();
        }
        private void mnu_encodeLog_Click(object sender, EventArgs e)
        {
            String file;
            if (lastAction == "scan")
                file = "dvdinfo.dat";
            else
                file = "hb_encode_log.dat";

            frmActivityWindow dvdInfoWindow = new frmActivityWindow(file, encodeHandler);
            dvdInfoWindow.Show();
        }
        private void mnu_options_Click(object sender, EventArgs e)
        {
            Form Options = new frmOptions();
            Options.ShowDialog();
        }
        #endregion

        #region Presets Menu
        private void mnu_presetReset_Click(object sender, EventArgs e)
        {
            presetHandler.updateBuiltInPresets();
            loadPresetPanel();
            if (treeView_presets.Nodes.Count == 0)
                MessageBox.Show("Unable to load the presets.xml file. Please select \"Update Built-in Presets\" from the Presets Menu \nMake sure you are running the program in Admin mode if running on Vista. See Windows FAQ for details!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
            else
                MessageBox.Show("Presets have been updated!", "Alert", MessageBoxButtons.OK, MessageBoxIcon.Information);

            treeView_presets.ExpandAll();
        }
        private void mnu_delete_preset_Click(object sender, EventArgs e)
        {
            // Empty the preset file
            string presetsFile = Application.StartupPath + "\\presets.xml";
            if (File.Exists(presetsFile))
                File.Delete(presetsFile);

            try
            {
                FileStream strm = new FileStream(presetsFile, FileMode.Create, FileAccess.Write);
                strm.Close();
                strm.Dispose();
            }
            catch (Exception exc)
            {
                MessageBox.Show("An error has occured during the preset removal process.\n If you are using Windows Vista, you may need to run under Administrator Mode to complete this task. \n" + exc);
            }

            // Reload the preset panel
            loadPresetPanel();
        }
        private void mnu_SelectDefault_Click(object sender, EventArgs e)
        {
            loadNormalPreset();
        }
        private void btn_new_preset_Click(object sender, EventArgs e)
        {
            // Remember each nodes expanded status so we can reload it
            List<Boolean> nodeStatus = saveTreeViewState();
            nodeStatus.Add(true);

            Form preset = new frmAddPreset(this, queryGen.GenerateTheQuery(this), presetHandler);
            preset.ShowDialog();

            // Now reload the TreeView states
            loadTreeViewStates(nodeStatus);
        }
        #endregion

        #region Help Menu
        private void mnu_handbrake_forums_Click(object sender, EventArgs e)
        {
            Process.Start("http://forum.handbrake.fr/");
        }
        private void mnu_user_guide_Click(object sender, EventArgs e)
        {
            Process.Start("http://trac.handbrake.fr/wiki/HandBrakeGuide");
        }
        private void mnu_handbrake_home_Click(object sender, EventArgs e)
        {
            Process.Start("http://handbrake.fr");
        }
        private void mnu_UpdateCheck_Click(object sender, EventArgs e)
        {
            Boolean update = hb_common_func.updateCheck(true);
            if (update == true)
            {
                frmUpdater updateWindow = new frmUpdater();
                updateWindow.Show();
            }
            else
                MessageBox.Show("There are no new updates at this time.", "Update Check", MessageBoxButtons.OK, MessageBoxIcon.Information);
        }
        private void mnu_about_Click(object sender, EventArgs e)
        {
            Form About = new frmAbout();
            About.ShowDialog();
        }
        #endregion

        #region Debug Menu
        private void mnu_qptest_Click(object sender, EventArgs e)
        {
            QueryParserTester qptest = new QueryParserTester();
            qptest.Show();
        }
        #endregion

        #region Preset Bar
        // Right Click Menu Code
        private void pmnu_expandAll_Click(object sender, EventArgs e)
        {
            treeView_presets.ExpandAll();
        }
        private void pmnu_collapse_Click(object sender, EventArgs e)
        {
            treeView_presets.CollapseAll();
        }
        private void pmnu_saveChanges_Click(object sender, EventArgs e)
        {
            DialogResult result = MessageBox.Show("Do you wish to include picture settings when updating the preset: " + treeView_presets.SelectedNode.Text, "Update Preset", MessageBoxButtons.YesNoCancel, MessageBoxIcon.Question);
            if (result == DialogResult.Yes)
                presetHandler.updatePreset(treeView_presets.SelectedNode.Text, queryGen.generateTabbedComponentsQuery(this), true);
            else if (result == DialogResult.No)
                presetHandler.updatePreset(treeView_presets.SelectedNode.Text, queryGen.generateTabbedComponentsQuery(this), false);
        }
        private void pmnu_delete_click(object sender, EventArgs e)
        {
            if (treeView_presets.SelectedNode != null)
            {
                presetHandler.remove(treeView_presets.SelectedNode.Text);

                // Remember each nodes expanded status so we can reload it
                List<Boolean> nodeStatus = saveTreeViewState();

                // Now reload the preset panel
                loadPresetPanel();

                // Now reload the TreeView states
                loadTreeViewStates(nodeStatus);
            }
            treeView_presets.Select();
        }
        private void presets_menu_Opening(object sender, System.ComponentModel.CancelEventArgs e)
        {
            // Make sure that the save menu is always disabled by default
            pmnu_saveChanges.Enabled = false;

            // Now enable the save menu if the selected preset is a user preset
            if (treeView_presets.SelectedNode != null)
            {
                if (presetHandler.checkIfUserPresetExists(treeView_presets.SelectedNode.Text))
                {
                    pmnu_saveChanges.Enabled = true;
                }
            }
            treeView_presets.Select();
        }

        // Presets Management
        private void btn_addPreset_Click(object sender, EventArgs e)
        {
            // Remember each nodes expanded status so we can reload it
            List<Boolean> nodeStatus = saveTreeViewState();
            nodeStatus.Add(true);

            // Now add the new preset
            Form preset = new frmAddPreset(this, queryGen.generateTabbedComponentsQuery(this), presetHandler);
            preset.ShowDialog();

            // Now reload the TreeView states
            loadTreeViewStates(nodeStatus);
        }
        private void btn_removePreset_Click(object sender, EventArgs e)
        {
            DialogResult result = MessageBox.Show("Are you sure you wish to delete the selected preset?", "Preset", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
            if (result == DialogResult.Yes)
            {
                if (treeView_presets.SelectedNode != null)
                    presetHandler.remove(treeView_presets.SelectedNode.Text);

                // Remember each nodes expanded status so we can reload it
                List<Boolean> nodeStatus = saveTreeViewState();

                // Now reload the preset panel
                loadPresetPanel();

                // Now reload the TreeView states
                loadTreeViewStates(nodeStatus);
            }
            treeView_presets.Select();
        }
        private void btn_setDefault_Click(object sender, EventArgs e)
        {
            if (treeView_presets.SelectedNode != null)
            {
                DialogResult result = MessageBox.Show("Are you sure you wish to set this preset as the default?", "Preset", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
                if (result == DialogResult.Yes)
                {
                    Properties.Settings.Default.defaultPreset = treeView_presets.SelectedNode.Text;
                    Properties.Settings.Default.Save();
                    MessageBox.Show("New default preset set.", "Alert", MessageBoxButtons.OK, MessageBoxIcon.Information);
                }
            }
            else
                MessageBox.Show("Please select a preset first.", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
        }
        private void treeview_presets_mouseUp(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Right)
                treeView_presets.SelectedNode = treeView_presets.GetNodeAt(e.Location);
            else if (e.Button == MouseButtons.Left)
            {
                if (treeView_presets.GetNodeAt(e.Location) != null)
                {
                    if (groupBox_output.Text.Contains(treeView_presets.GetNodeAt(e.Location).Text))
                        selectPreset();
                }
            }

            treeView_presets.Select();
        }
        private void treeView_presets_AfterSelect(object sender, TreeViewEventArgs e)
        {
            selectPreset();
        }
        private void selectPreset()
        {
            if (treeView_presets.SelectedNode != null)
            {
                // Ok, so, we've selected a preset. Now we want to load it.
                string presetName = treeView_presets.SelectedNode.Text;
                if (presetHandler.getPreset(presetName) != null)
                {
                    string query = presetHandler.getPreset(presetName).Query;
                    Boolean loadPictureSettings = presetHandler.getPreset(presetName).PictureSettings;

                    if (query != null)
                    {
                        //Ok, Reset all the H264 widgets before changing the preset
                        x264Panel.reset2Defaults();

                        // Send the query from the file to the Query Parser class
                        Functions.QueryParser presetQuery = QueryParser.Parse(query);

                        // Now load the preset
                        presetLoader.presetLoader(this, presetQuery, presetName, loadPictureSettings);

                        // The x264 widgets will need updated, so do this now:
                        x264Panel.X264_StandardizeOptString();
                        x264Panel.X264_SetCurrentSettingsInPanel();

                        if (maxWidth != 0 && maxHeight != 0)
                            lbl_max.Text = "Max Width / Height";
                        else if (maxWidth != 0)
                            lbl_max.Text = "Max Width";
                        else
                            lbl_max.Text = "";
                    }
                }
            }
        }
        private void treeView_presets_deleteKey(object sender, KeyEventArgs e)
        {
            if (e.KeyCode == Keys.Delete)
            {
                DialogResult result = MessageBox.Show("Are you sure you wish to delete the selected preset?", "Preset", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
                if (result == DialogResult.Yes)
                {
                    if (treeView_presets.SelectedNode != null)
                        presetHandler.remove(treeView_presets.SelectedNode.Text);

                    // Remember each nodes expanded status so we can reload it
                    List<Boolean> nodeStatus = new List<Boolean>();
                    foreach (TreeNode node in treeView_presets.Nodes)
                        nodeStatus.Add(node.IsExpanded);

                    // Now reload the preset panel
                    loadPresetPanel();

                    // And finally, re-expand any of the nodes if required
                    int i = 0;
                    foreach (TreeNode node in treeView_presets.Nodes)
                    {
                        if (nodeStatus[i])
                            node.Expand();

                        i++;
                    }
                }
            }
        }
        private List<Boolean> saveTreeViewState()
        {
            // Remember each nodes expanded status so we can reload it
            List<Boolean> nodeStatus = new List<Boolean>();
            foreach (TreeNode node in treeView_presets.Nodes)
            {
                nodeStatus.Add(node.IsExpanded);
                foreach (TreeNode subNode in node.Nodes)
                    nodeStatus.Add(node.IsExpanded);
            }
            return nodeStatus;
        }
        private void loadTreeViewStates(List<Boolean> nodeStatus)
        {
            // And finally, re-expand any of the nodes if required
            int i = 0;
            foreach (TreeNode node in treeView_presets.Nodes)
            {
                if (nodeStatus[i])
                    node.Expand();

                foreach (TreeNode subNode in node.Nodes)
                {
                    if (nodeStatus[i])
                        subNode.Expand();
                }

                i++;
            }
        }
        private void loadNormalPreset()
        {
            treeView_presets.Nodes.Find("Normal", true);

            foreach (TreeNode treenode in treeView_presets.Nodes)
            {
                foreach (TreeNode node in treenode.Nodes)
                {
                    if (node.Text.Equals("Normal"))
                        treeView_presets.SelectedNode = treeView_presets.Nodes[treenode.Index].Nodes[0];
                }
            }
        }
        #endregion

        #region ToolStrip
        private void btn_source_Click(object sender, EventArgs e)
        {
            if (Properties.Settings.Default.drive_detection == "Checked")
            {
                mnu_dvd_drive.Visible = true;
                Thread driveInfoThread = new Thread(getDriveInfoThread);
                driveInfoThread.Start();
            }
            else
                mnu_dvd_drive.Visible = false;
        }
        private void btn_start_Click(object sender, EventArgs e)
        {
            if (btn_start.Text == "Stop")
            {
                DialogResult result = MessageBox.Show("Are you sure you wish to cancel the encode? Please note that this may break the encoded file. \nTo safely cancel your encode, press ctrl-c on your keyboard in the CLI window. This *may* allow you to preview your encoded content.", "Cancel Encode?", MessageBoxButtons.YesNo, MessageBoxIcon.Question);

                if (result == DialogResult.Yes)
                {
                    // Pause The Queue
                    encodeQueue.pauseEncode();

                    // Kill the current process.
                    Process[] aProc = Process.GetProcessesByName("HandBrakeCLI");
                    Process HandBrakeCLI;
                    if (aProc.Length > 0)
                    {
                        HandBrakeCLI = aProc[0];
                        HandBrakeCLI.Kill();
                    }

                    // Update the GUI
                    setEncodeFinished();
                }
            }
            else
            {
                if (encodeQueue.count() != 0 || (text_source.Text != string.Empty && text_source.Text != "Click 'Source' to continue" && text_destination.Text != string.Empty))
                {
                    // Set the last action to encode. 
                    // This is used for tracking which file to load in the activity window
                    lastAction = "encode";

                    String query = rtf_query.Text != "" ? rtf_query.Text : queryGen.GenerateTheQuery(this);

                    if (encodeQueue.count() == 0)
                    {
                        encodeQueue.add(query, text_source.Text, text_destination.Text);
                        encodeQueue.write2disk("hb_queue_recovery.xml");
                    }
                    queueWindow.setQueue();
                    if (encodeQueue.count() > 1)
                        queueWindow.Show();

                    setEncodeStarted(); // Encode is running, so setup the GUI appropriately
                    encodeQueue.startEncode(); // Start The Queue Encoding Process

                }
                else if (text_source.Text == string.Empty || text_source.Text == "Click 'Source' to continue" || text_destination.Text == string.Empty)
                    MessageBox.Show("No source OR destination selected.", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);

            }
        }
        private void btn_add2Queue_Click(object sender, EventArgs e)
        {
            if (text_source.Text == string.Empty || text_source.Text == "Click 'Source' to continue" || text_destination.Text == string.Empty)
                MessageBox.Show("No source OR destination selected.", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
            else
            {
                String query = queryGen.GenerateTheQuery(this);
                if (rtf_query.Text != "")
                    query = rtf_query.Text;

                encodeQueue.add(query, text_source.Text, text_destination.Text);
                encodeQueue.write2disk("hb_queue_recovery.xml"); // Writes the queue to the recovery file, just incase the GUI crashes.

                queueWindow.setQueue();
                queueWindow.Show();
            }
        }
        private void btn_showQueue_Click(object sender, EventArgs e)
        {
            queueWindow.setQueue();
            queueWindow.Show();
            queueWindow.Activate();
        }
        private void tb_preview_Click(object sender, EventArgs e)
        {
            if (text_source.Text == "" || text_source.Text == "Click 'Source' to continue" || text_destination.Text == "")
                MessageBox.Show("No source OR destination selected.", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
            else
            {
                if (qtpreview == null)
                {
                    qtpreview = new frmPreview(this);
                    qtpreview.Show();
                }
                else if (qtpreview.IsDisposed)
                {
                    qtpreview = new frmPreview(this);
                    qtpreview.Show();
                }
                else
                    MessageBox.Show("The preview window is already open!", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
            }
        }
        private void btn_ActivityWindow_Click(object sender, EventArgs e)
        {
            String file = lastAction == "scan" ? "dvdinfo.dat" : "hb_encode_log.dat";

            frmActivityWindow ActivityWindow = new frmActivityWindow(file, encodeHandler);
            ActivityWindow.Show();
        }
        #endregion

        #region System Tray Icon
        private void frmMain_Resize(object sender, EventArgs e)
        {
            if (FormWindowState.Minimized == this.WindowState)
            {
                notifyIcon.Visible = true;
                notifyIcon.BalloonTipText = lbl_encode.Text != "" ? lbl_encode.Text : "Not Encoding";
                notifyIcon.ShowBalloonTip(500);
                this.Hide();
            }
            else if (FormWindowState.Normal == this.WindowState)
                notifyIcon.Visible = false;
        }
        private void notifyIcon_MouseDoubleClick(object sender, MouseEventArgs e)
        {
            this.Visible = true;
            this.Activate();
            this.WindowState = FormWindowState.Normal;
            notifyIcon.Visible = false;
        }
        private void btn_restore_Click(object sender, EventArgs e)
        {
            this.Visible = true;
            this.Activate();
            this.WindowState = FormWindowState.Normal;
            notifyIcon.Visible = false;
        }
        #endregion

        #region Tab Control

        //Source
        private void btn_dvd_source_Click(object sender, EventArgs e)
        {
            // Enable the creation of chapter markers.
            Check_ChapterMarkers.Enabled = true;

            // Set the last action to scan. 
            // This is used for tracking which file to load in the activity window
            lastAction = "scan";
            text_source.Text = "";

            if (DVD_Open.ShowDialog() == DialogResult.OK)
            {
                String filename = DVD_Open.SelectedPath;

                if (filename.StartsWith("\\"))
                    MessageBox.Show("Sorry, HandBrake does not support UNC file paths. \nTry mounting the share as a network drive in My Computer", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                else
                {

                    if (filename != "")
                    {
                        setupGUIforScan(filename);
                        startScan(filename);
                    }
                    else
                        text_source.Text = "Click 'Source' to continue";
                }
            }
            else
                text_source.Text = "Click 'Source' to continue";
        }
        private void btn_file_source_Click(object sender, EventArgs e)
        {
            // Set the last action to scan. 
            // This is used for tracking which file to load in the activity window
            lastAction = "scan";
            text_source.Text = "";

            if (ISO_Open.ShowDialog() == DialogResult.OK)
            {
                String filename = ISO_Open.FileName;
                if (filename.StartsWith("\\"))
                    MessageBox.Show(
                        "Sorry, HandBrake does not support UNC file paths. \nTry mounting the share as a network drive in My Computer",
                        "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                else
                {
                    if (filename != "")
                    {
                        setupGUIforScan(filename);
                        startScan(filename);
                    }
                    else
                        text_source.Text = "Click 'Source' to continue";
                }
            }
            else
                text_source.Text = "Click 'Source' to continue";
        }
        private void mnu_dvd_drive_Click(object sender, EventArgs e)
        {
            // Enable the creation of chapter markers.
            Check_ChapterMarkers.Enabled = true;

            // Set the last action to scan. 
            // This is used for tracking which file to load in the activity window
            lastAction = "scan";

            if (mnu_dvd_drive.Text.Contains("VIDEO_TS"))
            {
                string[] path = mnu_dvd_drive.Text.Split(' ');
                String filename = path[0];
                setupGUIforScan(filename);
                startScan(filename);
            }

            // If there are no titles in the dropdown menu then the scan has obviously failed. Display an error message explaining to the user.
            if (drp_dvdtitle.Items.Count == 0)
                MessageBox.Show("No Title(s) found. Please make sure you have selected a valid, non-copy protected source.\nYour Source may be copy protected, badly mastered or a format which HandBrake does not support. \nPlease refer to the Documentation and FAQ (see Help Menu).", "Error", MessageBoxButtons.OK, MessageBoxIcon.Hand);

            lbl_encode.Text = "";
        }
        private void drp_dvdtitle_Click(object sender, EventArgs e)
        {
            if ((drp_dvdtitle.Items.Count == 1) && (drp_dvdtitle.Items[0].ToString() == "Automatic"))
                MessageBox.Show("There are no titles to select. Please load a source file by clicking the 'Source' button above before trying to select a title.", "Alert", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
        }
        private void drp_dvdtitle_SelectedIndexChanged(object sender, EventArgs e)
        {
            // Reset some values on the form
            lbl_Aspect.Text = "Select a Title";
            //lbl_RecomendedCrop.Text = "Select a Title";
            drop_chapterStart.Items.Clear();
            drop_chapterFinish.Items.Clear();

            // If the dropdown is set to automatic nothing else needs to be done.
            // Otheriwse if its not, title data has to be loased from parsing.
            if (drp_dvdtitle.Text != "Automatic")
            {
                selectedTitle = drp_dvdtitle.SelectedItem as Parsing.Title;

                // Set the Aspect Ratio
                lbl_Aspect.Text = selectedTitle.AspectRatio.ToString();
                lbl_src_res.Text = selectedTitle.Resolution.Width + " x " + selectedTitle.Resolution.Height;
                lbl_duration.Text = selectedTitle.Duration.ToString();

                // Set the Recommended Cropping values
                text_top.Text = selectedTitle.AutoCropDimensions[0].ToString();
                text_bottom.Text = selectedTitle.AutoCropDimensions[1].ToString();
                text_left.Text = selectedTitle.AutoCropDimensions[2].ToString();
                text_right.Text = selectedTitle.AutoCropDimensions[3].ToString();

                // Populate the Start chapter Dropdown
                drop_chapterStart.Items.Clear();
                drop_chapterStart.Items.AddRange(selectedTitle.Chapters.ToArray());
                if (drop_chapterStart.Items.Count > 0)
                    drop_chapterStart.Text = drop_chapterStart.Items[0].ToString();

                // Populate the Final Chapter Dropdown
                drop_chapterFinish.Items.Clear();
                drop_chapterFinish.Items.AddRange(selectedTitle.Chapters.ToArray());
                if (drop_chapterFinish.Items.Count > 0)
                    drop_chapterFinish.Text = drop_chapterFinish.Items[drop_chapterFinish.Items.Count - 1].ToString();

                // Populate the Audio Channels Dropdown
                drp_track1Audio.Items.Clear();
                drp_track1Audio.Items.Add("Automatic");
                drp_track1Audio.Items.Add("None");
                drp_track1Audio.Items.AddRange(selectedTitle.AudioTracks.ToArray());
                drp_track1Audio.SelectedIndex = 0;

                // Populate the Subtitles dropdown
                drp_subtitle.Items.Clear();
                drp_subtitle.Items.Add("None");
                drp_subtitle.Items.Add("Autoselect");
                drp_subtitle.Items.AddRange(selectedTitle.Subtitles.ToArray());
                if (drp_subtitle.Items.Count > 0)
                    drp_subtitle.Text = drp_subtitle.Items[0].ToString();

            }

            // Run the autoName & chapterNaming functions
            if (Properties.Settings.Default.autoNaming == "Checked")
            {
                string autoPath = hb_common_func.autoName(drp_dvdtitle, drop_chapterStart.Text, drop_chapterFinish.Text, text_source.Text, text_destination.Text, drop_format.SelectedIndex);
                if (autoPath != null)
                    text_destination.Text = autoPath;
                else
                    MessageBox.Show("You currently have automatic file naming enabled for the destination box, but you do not have a default direcotry set. You should set this in the program options (see Tools Menu)","Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
            }

            data_chpt.Rows.Clear();
            DataGridView chapterGridView = hb_common_func.chapterNaming(data_chpt, drop_chapterFinish.Text);
            if (chapterGridView != null)
                data_chpt = chapterGridView;

            // Hack to force the redraw of the scrollbars which don't resize properly when the control is disabled.
            data_chpt.Columns[0].Width = 166;
            data_chpt.Columns[0].Width = 165;
        }
        private void drop_chapterStart_SelectedIndexChanged(object sender, EventArgs e)
        {
            int c_start, c_end;

            if (drop_chapterFinish.Text == "Auto" && drop_chapterFinish.Items.Count != 0)
                drop_chapterFinish.SelectedIndex = drop_chapterFinish.Items.Count - 1;

            int.TryParse(drop_chapterStart.Text, out c_start);
            int.TryParse(drop_chapterFinish.Text, out c_end);

            if (c_end != 0)
            {
                if (c_start > c_end)
                    drop_chapterFinish.Text = c_start.ToString();
            }

            lbl_duration.Text = hb_common_func.calculateDuration(drop_chapterStart.Text, drop_chapterFinish.Text, selectedTitle).ToString();

            // Run the Autonaming function
            if (Properties.Settings.Default.autoNaming == "Checked")
                text_destination.Text = hb_common_func.autoName(drp_dvdtitle, drop_chapterStart.Text, drop_chapterFinish.Text, text_source.Text, text_destination.Text, drop_format.SelectedIndex);

        }
        private void drop_chapterFinish_SelectedIndexChanged(object sender, EventArgs e)
        {
            int c_start, c_end;

            if (drop_chapterStart.Text == "Auto" && drop_chapterStart.Items.Count >= 1)
                drop_chapterStart.SelectedIndex = 1;

            int.TryParse(drop_chapterStart.Text, out c_start);
            int.TryParse(drop_chapterFinish.Text, out c_end);

            if (c_start != 0)
            {
                if (c_end < c_start)
                    drop_chapterFinish.Text = c_start.ToString();
            }

            lbl_duration.Text = hb_common_func.calculateDuration(drop_chapterStart.Text, drop_chapterFinish.Text, selectedTitle).ToString();

            // Run the Autonaming function
            if (Properties.Settings.Default.autoNaming == "Checked")
                text_destination.Text = hb_common_func.autoName(drp_dvdtitle, drop_chapterStart.Text, drop_chapterFinish.Text, text_source.Text, text_destination.Text, drop_format.SelectedIndex);

            // Add more rows to the Chapter menu if needed.
            if (Check_ChapterMarkers.Checked)
            {
                int i = data_chpt.Rows.Count, finish = 0;

                if (drop_chapterFinish.Text != "Auto")
                    int.TryParse(drop_chapterFinish.Text, out finish);

                while (i < finish)
                {
                    int n = data_chpt.Rows.Add();
                    data_chpt.Rows[n].Cells[0].Value = (i + 1);
                    data_chpt.Rows[n].Cells[1].Value = "Chapter " + (i + 1);
                    data_chpt.Rows[n].Cells[0].ValueType = typeof(int);
                    data_chpt.Rows[n].Cells[1].ValueType = typeof(string);
                    i++;
                }
            }
        }

        //Destination
        private void btn_destBrowse_Click(object sender, EventArgs e)
        {
            // This removes the file extension from the filename box on the save file dialog.
            // It's daft but some users don't realise that typing an extension overrides the dropdown extension selected.
            DVD_Save.FileName = DVD_Save.FileName.Replace(".mp4", "").Replace(".m4v", "").Replace(".mkv", "").Replace(".ogm", "").Replace(".avi", "");

            // Show the dialog and set the main form file path
            if (drop_format.SelectedIndex.Equals(0))
                DVD_Save.FilterIndex = 1;
            else if (drop_format.SelectedIndex.Equals(1))
                DVD_Save.FilterIndex = 2;
            else if (drop_format.SelectedIndex.Equals(2))
                DVD_Save.FilterIndex = 3;
            else if (drop_format.SelectedIndex.Equals(3))
                DVD_Save.FilterIndex = 4;
            else if (drop_format.SelectedIndex.Equals(4))
                DVD_Save.FilterIndex = 5;

            if (DVD_Save.ShowDialog() == DialogResult.OK)
            {
                if (DVD_Save.FileName.StartsWith("\\"))
                    MessageBox.Show("Sorry, HandBrake does not support UNC file paths. \nTry mounting the share as a network drive in My Computer", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                else
                {
                    setAudioByContainer(DVD_Save.FileName);
                    text_destination.Text = DVD_Save.FileName;

                    // Quicktime requires .m4v file for chapter markers to work. If checked, change the extension to .m4v (mp4 and m4v are the same thing)
                    if (Check_ChapterMarkers.Checked)
                        text_destination.Text = text_destination.Text.Replace(".mp4", ".m4v");
                }
            }
        }
        private void text_destination_TextChanged(object sender, EventArgs e)
        {
            string path = text_destination.Text;
            if (path.EndsWith(".mp4"))
                drop_format.SelectedIndex = 0;
            else if (path.EndsWith(".m4v"))
                drop_format.SelectedIndex = 1;
            else if (path.EndsWith(".mkv"))
                drop_format.SelectedIndex = 2;
            else if (path.EndsWith(".avi"))
                drop_format.SelectedIndex = 3;
            else if (path.EndsWith(".ogm"))
                drop_format.SelectedIndex = 4;

        }

        // Output Settings
        private void drop_format_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (drop_format.SelectedIndex == 0)
                setExtension(".mp4");
            else if (drop_format.SelectedIndex == 1)
                setExtension(".m4v");
            else if (drop_format.SelectedIndex == 2)
                setExtension(".mkv");
            else if (drop_format.SelectedIndex == 3)
                setExtension(".avi");
            else if (drop_format.SelectedIndex == 4)
                setExtension(".ogm");

            setAudioByContainer(drop_format.Text);
            setVideoByContainer(drop_format.Text);
        }
        private void setExtension(string newExtension)
        {
            text_destination.Text = text_destination.Text.Replace(".mp4", newExtension);
            text_destination.Text = text_destination.Text.Replace(".m4v", newExtension);
            text_destination.Text = text_destination.Text.Replace(".mkv", newExtension);
            text_destination.Text = text_destination.Text.Replace(".avi", newExtension);
            text_destination.Text = text_destination.Text.Replace(".ogm", newExtension);
        }

        //Video Tab
        private void drp_videoEncoder_SelectedIndexChanged(object sender, EventArgs e)
        {
            if ((text_destination.Text.Contains(".mp4")) || (text_destination.Text.Contains(".m4v")))
            {
                check_largeFile.Enabled = true;
                check_optimiseMP4.Enabled = true;
                check_iPodAtom.Enabled = true;
            }
            else
            {
                check_largeFile.Enabled = false;
                check_optimiseMP4.Enabled = false;
                check_iPodAtom.Enabled = false;
                check_largeFile.Checked = false;
                check_optimiseMP4.Checked = false;
                check_iPodAtom.Checked = false;
            }

            //Turn off some options which are H.264 only when the user selects a non h.264 encoder
            if (drp_videoEncoder.Text.Contains("H.264"))
            {
                if (check_2PassEncode.CheckState == CheckState.Checked)
                    check_turbo.Enabled = true;

                h264Tab.Enabled = true;
                if ((text_destination.Text.Contains(".mp4")) || (text_destination.Text.Contains(".m4v")))
                    check_iPodAtom.Enabled = true;
                else
                    check_iPodAtom.Enabled = false;
            }
            else
            {
                check_turbo.CheckState = CheckState.Unchecked;
                check_turbo.Enabled = false;
                h264Tab.Enabled = false;
                x264Panel.x264Query = "";
                check_iPodAtom.Enabled = false;
                check_iPodAtom.Checked = false;
            }

            // Setup the CQ Slider
            switch (drp_videoEncoder.Text)
            {
                case "MPEG-4 (FFmpeg)":
                    slider_videoQuality.Minimum = 1;
                    slider_videoQuality.Maximum = 31;
                    slider_videoQuality.Value = 1;
                    SliderValue.Text = "0% QP: 31.00";
                    break;
                case "MPEG-4 (XviD)":
                    slider_videoQuality.Minimum = 1;
                    slider_videoQuality.Maximum = 31;
                    slider_videoQuality.Value = 1;
                    SliderValue.Text = "0% QP: 31.00";
                    break;
                case "H.264 (x264)":
                    slider_videoQuality.Minimum = 0;
                    slider_videoQuality.Value = 0;
                    slider_videoQuality.TickFrequency = 1;
                    SliderValue.Text = "0% RF: 51.00";
                    String step = Properties.Settings.Default.x264cqstep;
                    switch (step)
                    {
                        case "0.20":
                            slider_videoQuality.Maximum = 255;
                            break;
                        case "0.25":
                            slider_videoQuality.Maximum = 204;
                            break;
                        case "0.33":
                            slider_videoQuality.Maximum = 155;
                            break;
                        case "0.50":
                            slider_videoQuality.Maximum = 102;
                            break;
                        case "1.0":
                            slider_videoQuality.Maximum = 51;
                            break;
                        default:
                            slider_videoQuality.Maximum = 51;
                            break;
                    }
                    break;
                case "VP3 (Theora)":
                    slider_videoQuality.Minimum = 0;
                    slider_videoQuality.Maximum = 63;
                    slider_videoQuality.Value = 0;
                    SliderValue.Text = "0% QP: 0.00";
                    break;
            }
        }
        private void slider_videoQuality_Scroll(object sender, EventArgs e)
        {
            switch (drp_videoEncoder.Text)
            {
                case "MPEG-4 (FFmpeg)":
                    double rfValue = 31 - (slider_videoQuality.Value - 1);
                    double max = slider_videoQuality.Maximum;
                    double min = slider_videoQuality.Minimum;
                    double val = ((max - min) - (rfValue - min)) / (max - min);
                    SliderValue.Text = Math.Round((val * 100), 2) + "% QP:" + (32 - slider_videoQuality.Value);
                    break;
                case "MPEG-4 (XviD)":
                    rfValue = 31 - (slider_videoQuality.Value - 1);
                    max = slider_videoQuality.Maximum;
                    min = slider_videoQuality.Minimum;
                    val = ((max - min) - (rfValue - min)) / (max - min);
                    SliderValue.Text = Math.Round((val * 100), 2) + "% QP:" + (32 - slider_videoQuality.Value);
                    break;
                case "H.264 (x264)":
                    double divided;
                    System.Globalization.CultureInfo culture = System.Globalization.CultureInfo.CreateSpecificCulture("en-US");
                    double.TryParse(Properties.Settings.Default.x264cqstep,
                                    System.Globalization.NumberStyles.Number,
                                    culture,
                                    out divided);
                    rfValue = 51.0 - slider_videoQuality.Value * divided;
                    max = slider_videoQuality.Maximum * divided;
                    min = slider_videoQuality.Minimum;
                    val = ((max - min) - (rfValue - min)) / (max - min);
                    rfValue = Math.Round(rfValue, 2);
                    SliderValue.Text = Math.Round((val * 100), 2) + "% RF:" + rfValue;
                    break;
                case "VP3 (Theora)":
                    rfValue = slider_videoQuality.Value;
                    double value = rfValue / 63;
                    SliderValue.Text = Math.Round((value * 100), 2) + "% QP:" + slider_videoQuality.Value;
                    break;
            }
        }
        private void radio_targetFilesize_CheckedChanged(object sender, EventArgs e)
        {
            text_bitrate.Enabled = false;
            text_filesize.Enabled = true;
            slider_videoQuality.Enabled = false;

            check_2PassEncode.Enabled = true;
        }
        private void radio_avgBitrate_CheckedChanged(object sender, EventArgs e)
        {
            text_bitrate.Enabled = true;
            text_filesize.Enabled = false;
            slider_videoQuality.Enabled = false;

            check_2PassEncode.Enabled = true;
        }
        private void radio_cq_CheckedChanged(object sender, EventArgs e)
        {
            text_bitrate.Enabled = false;
            text_filesize.Enabled = false;
            slider_videoQuality.Enabled = true;

            check_2PassEncode.Enabled = false;
            check_2PassEncode.CheckState = CheckState.Unchecked;
        }
        private void check_2PassEncode_CheckedChanged(object sender, EventArgs e)
        {
            if (check_2PassEncode.CheckState.ToString() == "Checked")
            {
                if (drp_videoEncoder.Text.Contains("H.264"))
                    check_turbo.Enabled = true;
            }
            else
            {
                check_turbo.Enabled = false;
                check_turbo.CheckState = CheckState.Unchecked;
            }
        }

        //Picture Tab
        private void text_width_TextChanged(object sender, EventArgs e)
        {
            if (text_width.Text == "")
                text_width.BackColor = Color.White;

            maxWidth = 0; maxHeight = 0;  // Reset max width so that it's not using the MaxWidth -X. Quick hack to allow -X for preset usage.
            lbl_max.Text = "";

            int width;
            Boolean parsed = int.TryParse(text_width.Text, out width);
            if (parsed)
            {
                text_width.BackColor = (width % 16) != 0 ? Color.LightCoral : Color.LightGreen;

                if (lbl_Aspect.Text != "Select a Title" && maxWidth == 0 && maxHeight == 0)
                {
                    if (drp_anamorphic.Text == "None")
                    {
                        int height = hb_common_func.cacluateNonAnamorphicHeight(width, text_top.Value, text_bottom.Value, text_left.Value, text_right.Value, selectedTitle);
                        if (height != 0)
                            text_height.Text = height.ToString();
                    }
                }
            }
        }
        private void text_height_TextChanged(object sender, EventArgs e)
        {
            if (text_height.Text == "")
                text_height.BackColor = Color.White;

            maxHeight = 0;  // Reset max height so that it's not using the MaxHeight -Y. Quick hack to allow -Y for preset usage.
            if (maxWidth != 0)
                lbl_max.Text = "Max Width";
            else
                lbl_max.Text = "";

            int height;
            Boolean parsed = int.TryParse(text_height.Text, out height);
            if (parsed)
                text_height.BackColor = (height % 16) != 0 ? Color.LightCoral : Color.LightGreen;
        }
        private void check_customCrop_CheckedChanged(object sender, EventArgs e)
        {
            text_left.Enabled = true;
            text_right.Enabled = true;
            text_top.Enabled = true;
            text_bottom.Enabled = true;
            if (selectedTitle != null)
            {
                text_top.Text = selectedTitle.AutoCropDimensions[0].ToString();
                text_bottom.Text = selectedTitle.AutoCropDimensions[1].ToString();
                text_left.Text = selectedTitle.AutoCropDimensions[2].ToString();
                text_right.Text = selectedTitle.AutoCropDimensions[3].ToString();
            }
            else
            {
                text_left.Text = "0";
                text_right.Text = "0";
                text_top.Text = "0";
                text_bottom.Text = "0";
            }
        }
        private void check_autoCrop_CheckedChanged(object sender, EventArgs e)
        {
            text_left.Enabled = false;
            text_right.Enabled = false;
            text_top.Enabled = false;
            text_bottom.Enabled = false;
        }
        private void drp_anamorphic_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (drp_anamorphic.SelectedIndex == 1)
            {
                text_height.BackColor = Color.LightGray;
                text_width.BackColor = Color.LightGray;
                text_height.Text = "";
                text_width.Text = "";
                text_height.Enabled = false;
                text_width.Enabled = false;
            }

            if (drp_anamorphic.SelectedIndex == 2)
            {
                text_height.Text = "";
                text_height.Enabled = false;
                text_height.BackColor = Color.LightGray;

                text_width.Enabled = true;
                text_width.BackColor = Color.White;
            }

            if (drp_anamorphic.SelectedIndex == 0)
            {
                text_height.BackColor = Color.White;
                text_width.BackColor = Color.White;
                text_height.Enabled = true;
                text_width.Enabled = true;
            }
        }

        // Filter Tab
        private void ctl_decomb_changed(object sender, EventArgs e)
        {
            if (ctl_decomb.getDropValue != "Off")
                if (ctl_deinterlace.getDropValue != "None")
                    ctl_deinterlace.setOption("None");
        }
        private void ctl_deinterlace_changed(object sender, EventArgs e)
        {
            if (ctl_detelecine.getDropValue != "None")
                if (ctl_decomb.getDropValue != "Off")
                    ctl_decomb.setOption("Off");
        }
        private void slider_deblock_Scroll(object sender, EventArgs e)
        {
            lbl_deblockVal.Text = slider_deblock.Value == 4 ? "Off" : slider_deblock.Value.ToString();
        }

        //Audio Tab
        private void drp_track1Audio_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (lv_audioList.Items.Count != 0 && lv_audioList.SelectedIndices.Count != 0)
            {
                lv_audioList.Items[lv_audioList.SelectedIndices[0]].Text = drp_track1Audio.Text;
                lv_audioList.Select();
            }
        }
        private void drp_audenc_1_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (drp_audenc_1.Text == "AC3")
            {
                drp_audmix_1.Enabled = false;
                drp_audbit_1.Enabled = false;
                drp_audsr_1.Enabled = false;

                drp_audmix_1.SelectedIndex = 0;
                drp_audbit_1.SelectedIndex = 0;
                drp_audsr_1.SelectedIndex = 0;
            }
            else
            {
                drp_audmix_1.Enabled = true;
                drp_audbit_1.Enabled = true;
                drp_audsr_1.Enabled = true;

                drp_audmix_1.Text = "Automatic";
                drp_audbit_1.Text = "160";
                drp_audsr_1.Text = "Auto";
            }

            if (drp_audenc_1.Text == "AAC")
            {
                setMixDownAllOptions(drp_audmix_1);
                setBitrateSelections160(drp_audbit_1);
            }
            else
            {
                setMixDownNotAAC(drp_audmix_1);
                setBitrateSelections320(drp_audbit_1);
            }

            // Update an item in the Audio list if required.
            if (lv_audioList.Items.Count != 0 && lv_audioList.SelectedIndices.Count != 0)
            {
                lv_audioList.Items[lv_audioList.SelectedIndices[0]].SubItems[1].Text = drp_audenc_1.Text;
                lv_audioList.Select();
            }
        }
        private void drp_audmix_1_SelectedIndexChanged(object sender, EventArgs e)
        {
            if ((drp_audenc_1.Text == "AAC") && (drp_audmix_1.Text == "6 Channel Discrete"))
                setBitrateSelections384(drp_audbit_1);
            else if ((drp_audenc_1.Text == "AAC") && (drp_audmix_1.Text != "6 Channel Discrete"))
                setBitrateSelections160(drp_audbit_1); drp_audbit_1.Text = "160";

            // Update an item in the Audio list if required.
            if (lv_audioList.Items.Count != 0 && lv_audioList.SelectedIndices.Count != 0)
            {
                lv_audioList.Items[lv_audioList.SelectedIndices[0]].SubItems[2].Text = drp_audmix_1.Text;
                lv_audioList.Select();
            }
        }
        private void drp_audsr_1_SelectedIndexChanged(object sender, EventArgs e)
        {
            // Update an item in the Audio list if required.
            if (lv_audioList.Items.Count != 0 && lv_audioList.SelectedIndices.Count != 0)
            {
                lv_audioList.Items[lv_audioList.SelectedIndices[0]].SubItems[3].Text = drp_audsr_1.Text;
                lv_audioList.Select();
            }
        }
        private void drp_audbit_1_SelectedIndexChanged(object sender, EventArgs e)
        {
            // Update an item in the Audio list if required.
            if (lv_audioList.Items.Count != 0 && lv_audioList.SelectedIndices.Count != 0)
            {
                if (drp_audenc_1.Text == "AC3")
                    drp_audbit_1.Text = "Auto";
                lv_audioList.Items[lv_audioList.SelectedIndices[0]].SubItems[4].Text = drp_audbit_1.Text;
                lv_audioList.Select();
            }
        }
        private void tb_drc_Scroll(object sender, EventArgs e)
        {
            double value;
            if (tb_drc.Value == 0) value = 0;
            else
                value = ((tb_drc.Value - 1) / 10.0) + 1;

            lbl_drc.Text = value.ToString();

            // Update an item in the Audio list if required.
            if (lv_audioList.Items.Count != 0 && lv_audioList.SelectedIndices.Count != 0)
            {
                lv_audioList.Items[lv_audioList.SelectedIndices[0]].SubItems[5].Text = lbl_drc.Text;
                lv_audioList.Select();
            }
        }

        private void btn_addAudioTrack_Click(object sender, EventArgs e)
        {
            // Create a new row for the Audio list based on the currently selected items in the dropdown.
            ListViewItem newTrack = new ListViewItem(drp_track1Audio.Text);
            newTrack.SubItems.Add(drp_audenc_1.Text);
            newTrack.SubItems.Add(drp_audmix_1.Text);
            newTrack.SubItems.Add(drp_audsr_1.Text);
            newTrack.SubItems.Add(drp_audbit_1.Text);
            newTrack.SubItems.Add(lbl_drc.Text);

            // Select the newly added track and select the control
            lv_audioList.Items.Add(newTrack);
            lv_audioList.Items[lv_audioList.Items.Count - 1].Selected = true;
            lv_audioList.Select();
        }
        private void btn_RemoveAudioTrack_Click(object sender, EventArgs e)
        {
            removeAudioTrack();
        }
        private void audioList_moveup_Click(object sender, EventArgs e)
        {
            if (lv_audioList.SelectedIndices.Count != 0)
            {
                ListViewItem item = lv_audioList.SelectedItems[0];
                int index = item.Index;
                index--;

                if (lv_audioList.Items.Count > index && index >= 0)
                {
                    lv_audioList.Items.Remove(item);
                    lv_audioList.Items.Insert(index, item);
                    item.Selected = true;
                    lv_audioList.Focus();
                }
            }
        }
        private void audioList_movedown_Click(object sender, EventArgs e)
        {
            if (lv_audioList.SelectedIndices.Count != 0)
            {
                ListViewItem item = lv_audioList.SelectedItems[0];
                int index = item.Index;
                index++;

                if (index < lv_audioList.Items.Count)
                {
                    lv_audioList.Items.Remove(item);
                    lv_audioList.Items.Insert(index, item);
                    item.Selected = true;
                    lv_audioList.Focus();
                }
            }

        }
        private void audioList_remove_Click(object sender, EventArgs e)
        {
            removeAudioTrack();
        }
        private void removeAudioTrack()
        {
            // Remove the Item and reselect the control if the following conditions are met.
            if (lv_audioList.SelectedItems.Count != 0)
            {
                // Record the current selected index.
                int currentPosition = lv_audioList.SelectedIndices[0];

                lv_audioList.Items.RemoveAt(lv_audioList.SelectedIndices[0]);

                // Now reslect the correct item and give focus to the audio list.
                if (lv_audioList.Items.Count != 0)
                {
                    if (currentPosition <= (lv_audioList.Items.Count - 1))
                        lv_audioList.Items[currentPosition].Selected = true;
                    else if (currentPosition > (lv_audioList.Items.Count - 1))
                        lv_audioList.Items[lv_audioList.Items.Count - 1].Selected = true;

                    lv_audioList.Select();
                }
            }
        }
        private void lv_audioList_SelectedIndexChanged(object sender, EventArgs e)
        {
            // Set the dropdown controls based on the selected item in the Audio List.
            if (lv_audioList.Items.Count != 0 && lv_audioList.SelectedIndices.Count != 0)
            {
                drp_track1Audio.Text = lv_audioList.Items[lv_audioList.SelectedIndices[0]].Text;
                drp_audenc_1.Text = lv_audioList.Items[lv_audioList.SelectedIndices[0]].SubItems[1].Text;
                drp_audmix_1.Text = lv_audioList.Items[lv_audioList.SelectedIndices[0]].SubItems[2].Text;
                drp_audsr_1.Text = lv_audioList.Items[lv_audioList.SelectedIndices[0]].SubItems[3].Text;
                drp_audbit_1.Text = lv_audioList.Items[lv_audioList.SelectedIndices[0]].SubItems[4].Text;
                double drcValue; int drcCalculated;
                double.TryParse(lv_audioList.Items[lv_audioList.SelectedIndices[0]].SubItems[5].Text, out drcValue);
                if (drcValue == 0) drcCalculated = 0;
                else
                    drcValue = ((drcValue * 10) + 1) - 10;
                int.TryParse(drcValue.ToString(), out drcCalculated);
                tb_drc.Value = drcCalculated;
            }
        }

        private void drp_subtitle_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (drp_subtitle.Text.Contains("None"))
            {
                check_forced.Enabled = false;
                check_forced.Checked = false;
            }
            else
                check_forced.Enabled = true;
        }

        // Chapter Marker Tab
        private void Check_ChapterMarkers_CheckedChanged(object sender, EventArgs e)
        {
            if (Check_ChapterMarkers.Checked)
            {
                text_destination.Text = text_destination.Text.Replace(".m4v", ".mp4");
                data_chpt.Rows.Clear();
                data_chpt.Enabled = true;
                DataGridView chapterGridView = hb_common_func.chapterNaming(data_chpt, drop_chapterFinish.Text);
                if (chapterGridView != null)
                    data_chpt = chapterGridView;
            }
            else
            {
                text_destination.Text = text_destination.Text.Replace(".m4v", ".mp4");
                data_chpt.Rows.Clear();
                data_chpt.Enabled = false;
            }
        }

        // Query Editor Tab
        private void btn_generate_Query_Click(object sender, EventArgs e)
        {
            rtf_query.Text = queryGen.GenerateTheQuery(this);
        }
        private void btn_clear_Click(object sender, EventArgs e)
        {
            rtf_query.Clear();
        }
        #endregion

        // MainWindow Components, Actions and Functions ***********************

        #region Source Scan
        private void setupGUIforScan(String filename)
        {
            text_source.Text = filename;

            foreach (Control ctrl in Controls)
            {
                if (!(ctrl is StatusStrip || ctrl is MenuStrip || ctrl is ToolStrip))
                    ctrl.Enabled = false;
            }
            lbl_encode.Visible = true;
            lbl_encode.Text = "Scanning ...";
            gb_source.Text = "Source: Scanning ...";
            btn_source.Enabled = false;
            btn_start.Enabled = false;
            btn_showQueue.Enabled = false;
            btn_add2Queue.Enabled = false;
            tb_preview.Enabled = false;
            mnu_killCLI.Visible = true;
        }
        private void startScan(String filename)
        {
            try
            {
                lbl_encode.Visible = true;
                lbl_encode.Text = "Scanning...";
                ThreadPool.QueueUserWorkItem(scanProcess, filename);
            }
            catch (Exception exc)
            {
                MessageBox.Show("frmMain.cs - startScan " + exc, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }
        private void scanProcess(object state)
        {
            try
            {
                string inputFile = (string)state;
                string handbrakeCLIPath = Path.Combine(Application.StartupPath, "HandBrakeCLI.exe");
                string dvdInfoPath = Path.Combine(Path.GetTempPath(), "dvdinfo.dat");

                // Make we don't pick up a stale hb_encode_log.dat (and that we have rights to the file)
                if (File.Exists(dvdInfoPath))
                    File.Delete(dvdInfoPath);

                string strCmdLine = String.Format(@"cmd /c """"{0}"" -i ""{1}"" -t0 -v >""{2}"" 2>&1""", handbrakeCLIPath, inputFile, dvdInfoPath);

                ProcessStartInfo hbParseDvd = new ProcessStartInfo("CMD.exe", strCmdLine);
                hbParseDvd.WindowStyle = ProcessWindowStyle.Hidden;

                using (hbproc = Process.Start(hbParseDvd))
                {
                    hbproc.WaitForExit();
                }

                if (!File.Exists(dvdInfoPath))
                {
                    throw new Exception("Unable to retrieve the DVD Info. dvdinfo.dat is missing. \nExpected location of dvdinfo.dat: \n" + dvdInfoPath);
                }

                using (StreamReader sr = new StreamReader(dvdInfoPath))
                {
                    thisDVD = Parsing.DVD.Parse(sr);
                    sr.Close();
                    sr.Dispose();
                }

                updateUIafterScan();
            }
            catch (Exception exc)
            {
                MessageBox.Show("frmMain.cs - scanProcess() " + exc, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                enableGUI();
            }
        }
        private void updateUIafterScan()
        {
            try
            {
                if (InvokeRequired)
                {
                    BeginInvoke(new UpdateWindowHandler(updateUIafterScan));
                    return;
                }

                // Setup some GUI components
                drp_dvdtitle.Items.Clear();
                if (thisDVD.Titles.Count != 0)
                    drp_dvdtitle.Items.AddRange(thisDVD.Titles.ToArray());
                drp_dvdtitle.Text = "Automatic";
                drop_chapterFinish.Text = "Auto";
                drop_chapterStart.Text = "Auto";

                // Now select the longest title
                if (thisDVD.Titles.Count != 0)
                    drp_dvdtitle.SelectedItem = hb_common_func.selectLongestTitle(drp_dvdtitle);

                // Enable the creation of chapter markers if the file is an image of a dvd.
                if (text_source.Text.ToLower().Contains(".iso") || text_source.Text.ToLower().Contains("VIDEO_TS"))
                    Check_ChapterMarkers.Enabled = true;
                else
                {
                    Check_ChapterMarkers.Enabled = false;
                    Check_ChapterMarkers.Checked = false;
                    data_chpt.Rows.Clear();
                }

                // If no titles were found, Display an error message
                if (drp_dvdtitle.Items.Count == 0)
                    MessageBox.Show("No Title(s) found. Please make sure you have selected a valid, non-copy protected source.\nYour Source may be copy protected, badly mastered or a format which HandBrake does not support. \nPlease refer to the Documentation and FAQ (see Help Menu).", "Error", MessageBoxButtons.OK, MessageBoxIcon.Hand);

                // Enable the GUI components and enable any disabled components
                enableGUI();
            }
            catch (Exception exc)
            {
                MessageBox.Show("frmMain.cs - updateUIafterScan " + exc, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                enableGUI();
            }
        }

        private void enableGUI()
        {
            try
            {
                if (InvokeRequired)
                {
                    BeginInvoke(new UpdateWindowHandler(updateUIafterScan));
                }
                lbl_encode.Text = "Scan Completed";
                gb_source.Text = "Source";
                foreach (Control ctrl in Controls)
                    ctrl.Enabled = true;
                btn_start.Enabled = true;
                btn_showQueue.Enabled = true;
                btn_add2Queue.Enabled = true;
                tb_preview.Enabled = true;
                btn_source.Enabled = true;
                mnu_killCLI.Visible = false;
            }
            catch (Exception exc)
            {
                MessageBox.Show("frmMain.cs - enableGUI " + exc, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }
        private static void killCLI()
        {
            // This may seem like a long way of killing HandBrakeCLI, but for whatever reason,
            // hbproc.kill/close just won't do the trick.
            try
            {
                string AppName = "HandBrakeCLI";

                AppName = AppName.ToUpper();

                System.Diagnostics.Process[] prs = Process.GetProcesses();
                foreach (System.Diagnostics.Process proces in prs)
                {
                    if (proces.ProcessName.ToUpper() == AppName)
                    {
                        proces.Refresh();
                        if (!proces.HasExited)
                            proces.Kill();
                    }
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show("Unable to kill HandBrakeCLI.exe \nYou may need to manually kill HandBrakeCLI.exe using the Windows Task Manager if it does not close automatically within the next few minutes. \n\nError Information: \n" + ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }
        #endregion

        #region DVD Drive Detection
        // Source Button Drive Detection
        private delegate void ProgressUpdateHandler();
        private void getDriveInfoThread()
        {
            try
            {
                if (InvokeRequired)
                {
                    BeginInvoke(new ProgressUpdateHandler(getDriveInfoThread));
                    return;
                }

                Boolean foundDrive = false;
                DriveInfo[] theCollectionOfDrives = DriveInfo.GetDrives();
                foreach (DriveInfo curDrive in theCollectionOfDrives)
                {
                    if (curDrive.DriveType == DriveType.CDRom)
                    {
                        if (curDrive.IsReady)
                        {
                            if (File.Exists(curDrive.RootDirectory + "VIDEO_TS\\VIDEO_TS.IFO"))
                                mnu_dvd_drive.Text = curDrive.RootDirectory + "VIDEO_TS (" + curDrive.VolumeLabel + ")";
                            else
                                mnu_dvd_drive.Text = "[No DVD Drive Ready]";

                            foundDrive = true;

                        }
                    }
                }

                if (foundDrive == false)
                    mnu_dvd_drive.Text = "[No DVD Drive Ready]";
            }
            catch (Exception)
            {
                mnu_dvd_drive.Text = "[No DVD Drive Ready / Found]";
            }
        }
        #endregion

        #region Audio Panel Code Helpers
        private void setAudioByContainer(String path)
        {
            string oldval;

            if ((path.Contains("MP4")) || (path.Contains("M4V")))
            {
                oldval = drp_audenc_1.Text;
                drp_audenc_1.Items.Clear();
                drp_audenc_1.Items.Add("AAC");
                drp_audenc_1.Items.Add("AC3");
                if ((oldval != "AAC") && (oldval != "AC3"))
                    drp_audenc_1.SelectedIndex = 0;

            }
            else if (path.Contains("AVI"))
            {
                oldval = drp_audenc_1.Text;
                drp_audenc_1.Items.Clear();
                drp_audenc_1.Items.Add("MP3");
                drp_audenc_1.Items.Add("AC3");
                if ((oldval != "MP3") && (oldval != "AC3"))
                    drp_audenc_1.SelectedIndex = 0;

            }
            else if (path.Contains("OGM"))
            {
                drp_audenc_1.Items.Clear();
                drp_audenc_1.Items.Add("Vorbis");
                drp_audenc_1.SelectedIndex = 0;

            }
            else if (path.Contains("MKV"))
            {
                drp_audenc_1.Items.Clear();
                drp_audenc_1.Items.Add("AAC");
                drp_audenc_1.Items.Add("MP3");
                drp_audenc_1.Items.Add("AC3");
                drp_audenc_1.Items.Add("Vorbis");
                if (drp_audenc_1.Text == string.Empty)
                    drp_audenc_1.SelectedIndex = 0;
            }

            // Make sure the table is updated with new audio codecs
            foreach (ListViewItem row in lv_audioList.Items)
            {
                if (!drp_audenc_1.Items.Contains(row.SubItems[1].Text))
                    row.SubItems[1].Text = drp_audenc_1.Items[0].ToString();
            }
        }
        private void setVideoByContainer(String path)
        {
            string oldval;

            if ((path.Contains("MP3")) || (path.Contains("M4V")))
            {
                oldval = drp_videoEncoder.Text;
                drp_videoEncoder.Items.Clear();
                drp_videoEncoder.Items.Add("MPEG-4 (FFmpeg)");
                drp_videoEncoder.Items.Add("MPEG-4 (XviD)");
                drp_videoEncoder.Items.Add("H.264 (x264)");
                if (oldval == "VP3 (Theora)")
                    drp_videoEncoder.SelectedIndex = 2;
                else
                    drp_videoEncoder.Text = oldval;

            }
            else if (path.Contains("AVI"))
            {
                oldval = drp_videoEncoder.Text;
                drp_videoEncoder.Items.Clear();
                drp_videoEncoder.Items.Add("MPEG-4 (FFmpeg)");
                drp_videoEncoder.Items.Add("MPEG-4 (XviD)");
                drp_videoEncoder.Items.Add("H.264 (x264)");
                if (oldval == "VP3 (Theora)")
                    drp_videoEncoder.SelectedIndex = 2;
                else
                    drp_videoEncoder.Text = oldval;
            }
            else if (path.Contains("OGM"))
            {
                oldval = drp_videoEncoder.Text;
                drp_videoEncoder.Items.Clear();
                drp_videoEncoder.Items.Add("MPEG-4 (FFmpeg)");
                drp_videoEncoder.Items.Add("MPEG-4 (XviD)");
                drp_videoEncoder.Items.Add("VP3 (Theora)");
                if (oldval == "H.264 (x264)")
                    drp_videoEncoder.SelectedIndex = 2;
                else
                    drp_videoEncoder.Text = oldval;
            }
            else if (path.Contains("MKV"))
            {
                oldval = drp_videoEncoder.Text;
                drp_videoEncoder.Items.Clear();
                drp_videoEncoder.Items.Add("MPEG-4 (FFmpeg)");
                drp_videoEncoder.Items.Add("MPEG-4 (XviD)");
                drp_videoEncoder.Items.Add("H.264 (x264)");
                drp_videoEncoder.Items.Add("VP3 (Theora)");
                drp_videoEncoder.Text = oldval;
            }
        }
        private void setBitrateSelections384(ComboBox dropDown)
        {
            dropDown.Items.Clear();
            dropDown.Items.Add("32");
            dropDown.Items.Add("40");
            dropDown.Items.Add("48");
            dropDown.Items.Add("56");
            dropDown.Items.Add("64");
            dropDown.Items.Add("80");
            dropDown.Items.Add("86");
            dropDown.Items.Add("112");
            dropDown.Items.Add("128");
            dropDown.Items.Add("160");
            dropDown.Items.Add("192");
            dropDown.Items.Add("224");
            dropDown.Items.Add("256");
            dropDown.Items.Add("320");
            dropDown.Items.Add("384");
        }
        private void setBitrateSelections320(ComboBox dropDown)
        {
            dropDown.Items.Clear();
            dropDown.Items.Add("32");
            dropDown.Items.Add("40");
            dropDown.Items.Add("48");
            dropDown.Items.Add("56");
            dropDown.Items.Add("64");
            dropDown.Items.Add("80");
            dropDown.Items.Add("86");
            dropDown.Items.Add("112");
            dropDown.Items.Add("128");
            dropDown.Items.Add("160");
            dropDown.Items.Add("192");
            dropDown.Items.Add("224");
            dropDown.Items.Add("256");
            dropDown.Items.Add("320");
        }
        private void setBitrateSelections160(ComboBox dropDown)
        {
            dropDown.Items.Clear();
            dropDown.Items.Add("32");
            dropDown.Items.Add("40");
            dropDown.Items.Add("48");
            dropDown.Items.Add("56");
            dropDown.Items.Add("64");
            dropDown.Items.Add("80");
            dropDown.Items.Add("86");
            dropDown.Items.Add("112");
            dropDown.Items.Add("128");
            dropDown.Items.Add("160");
        }
        private void setMixDownAllOptions(ComboBox dropdown)
        {
            dropdown.Items.Clear();
            dropdown.Items.Add("Automatic");
            dropdown.Items.Add("Mono");
            dropdown.Items.Add("Stereo");
            dropdown.Items.Add("Dolby Surround");
            dropdown.Items.Add("Dolby Pro Logic II");
            dropdown.Items.Add("6 Channel Discrete");
        }
        private void setMixDownNotAAC(ComboBox dropdown)
        {
            dropdown.Items.Clear();
            dropdown.Items.Add("Automatic");
            dropdown.Items.Add("Stereo");
            dropdown.Items.Add("Dolby Surround");
            dropdown.Items.Add("Dolby Pro Logic II");
        }
        #endregion

        #region Public Methods

        /// <summary>
        /// Setup the GUI for Encoding or finished Encoding.
        /// 1 = Encode Running
        /// 0 = Encode Finished.
        /// </summary>
        public void setEncodeFinished()
        {
            try
            {
                if (InvokeRequired)
                {
                    BeginInvoke(new UpdateWindowHandler(setEncodeFinished));
                    return;
                }

                lbl_encode.Text = "Encoding Finished";
                btn_start.Text = "Start";
                btn_start.ToolTipText = "Start the encoding process";
                btn_start.Image = Properties.Resources.Play;

                // If the window is minimized, display the notification in a popup.
                if (FormWindowState.Minimized == this.WindowState)
                {
                    notifyIcon.BalloonTipText = lbl_encode.Text;
                    notifyIcon.ShowBalloonTip(500);
                }
            }
            catch (Exception exc)
            {
                MessageBox.Show(exc.ToString());
            }
        }
        public void setEncodeStarted()
        {
            try
            {
                if (InvokeRequired)
                {
                    BeginInvoke(new UpdateWindowHandler(setEncodeStarted));
                    return;
                }

                lbl_encode.Visible = true;
                lbl_encode.Text = "Encoding in Progress";
                btn_start.Text = "Stop";
                btn_start.ToolTipText = "Stop the encoding process. \nWarning: This may break your file. Press ctrl-c in the CLI window if you wish it to exit cleanly.";
                btn_start.Image = Properties.Resources.stop;
            }
            catch (Exception exc)
            {
                MessageBox.Show(exc.ToString());
            }
        }

        /// <summary>
        /// Action can be "encode" or "scan"
        /// Set the last action varible in the main window.
        /// This is used to control which log file is displayed when the Activity window is displayed.
        /// </summary>
        /// <param name="last">String</param>
        public void setLastAction(string last)
        {
            this.lastAction = last;
        }

        /// <summary>
        /// DVD parseing. Pass in a parsed DVD.
        /// </summary>
        /// <param name="dvd"></param>
        public void setStreamReader(Parsing.DVD dvd)
        {
            this.thisDVD = dvd;
        }

        /// <summary>
        /// Reload the preset panel display
        /// </summary>
        public void loadPresetPanel()
        {
            presetHandler.loadPresetData();

            treeView_presets.Nodes.Clear();

            List<Presets.Preset> presetNameList;
            List<string> presetNames;
            TreeNode preset_treeview;

            TreeNode rootNode = new TreeNode();
            TreeNode rootNodeTwo = new TreeNode();
            TreeNode childNode;
            int workingLevel = 0;
            string previousCategory = String.Empty;
            string currentCategory = String.Empty;

            presetNameList = presetHandler.getBuildInPresets();
            if (presetNameList.Count != 0)
            {
                foreach (Presets.Preset preset in presetNameList)
                {
                    // Handle Root Nodes

                    // First Case - No presets have been read yet so setup the root category
                    if (preset.Level == 1 && currentCategory == String.Empty)
                    {
                        rootNode = new TreeNode(preset.Category);
                        workingLevel = preset.Level;
                        currentCategory = preset.Category;
                        previousCategory = preset.Category;
                    }

                    // Second Case - This is the first sub child node.
                    if (preset.Level == 2 && workingLevel == 1 && currentCategory != preset.Category)
                    {
                        rootNodeTwo = new TreeNode(preset.Category);
                        workingLevel = preset.Level;
                        currentCategory = preset.Category;
                        rootNode.Nodes.Add(rootNodeTwo);
                    }

                    // Third Case - Any presets the sub presets detected in the above if statment.
                    if (preset.Level == 1 && workingLevel == 2)
                    {
                        workingLevel = preset.Level;
                        currentCategory = preset.Category;
                    }

                    // Fourth Case - We've finished this root node and are onto the next root node.
                    if (preset.Level == 1 && workingLevel == 1 && previousCategory != preset.Category)
                    {
                        treeView_presets.Nodes.Add(rootNode); // Add the finished node

                        rootNode = new TreeNode(preset.Category);
                        workingLevel = preset.Level;
                        currentCategory = preset.Category;
                        previousCategory = preset.Category;
                    }

                    // Handle Child Nodes
                    // Add First level child nodes to the current root node
                    if (preset.Level == 1 && workingLevel == 1 && currentCategory == preset.Category)
                    {
                        childNode = new TreeNode(preset.Name);
                        rootNode.Nodes.Add(childNode);
                    }

                    // Add Second level child nodes to the current sub root node
                    if (preset.Level == 2 && workingLevel == 2 && currentCategory == preset.Category)
                    {
                        childNode = new TreeNode(preset.Name);
                        rootNodeTwo.Nodes.Add(childNode);
                    }
                }

                // Add the final root node which does not get added above.
                treeView_presets.Nodes.Add(rootNode);
            }

            // User Presets
            presetNames = presetHandler.getUserPresetNames();
            foreach (string preset in presetNames)
            {
                preset_treeview = new TreeNode(preset);
                preset_treeview.ForeColor = Color.Black;

                // Now Fill Out List View with Items
                treeView_presets.Nodes.Add(preset_treeview);
            }
        }

        #endregion


        // This is the END of the road ------------------------------------------------------------------------------
    }
}