UTAU音源でレンダリング - cadencii_jp @ wiki

// Render As UTAU.cs for Cadencii
// written by kbinani & 88
using System;
using System.Collections.Generic;
using System.IO;
using System.Windows.Forms;
using Boare.Lib.Vsq;
using Boare.Lib.AppUtil;
using bocoree;
 
public class RenderAsUtau : Form {
    private System.ComponentModel.IContainer components = null;
    public static string Resampler = "";
    public static string WavTool = "";
    public static string Singer = "";
    public static string LastWave = "";
    public static bool InvokeWithWine = false;
    private Label lblResampler;
    private TextBox txtSinger;
    private Button btnSinger;
    private GroupBox groupConfig;
    private Button btnWavtool;
    private Button btnResampler;
    private TextBox txtWavtool;
    private TextBox txtResampler;
    private Label lblWavtool;
    private Button btnOk;
    private FolderBrowserDialog folderBrowserDialog;
    private OpenFileDialog openFileDialog;
    private PictureBox pictSumbnail;
    private TextBox txtProf;
    private GroupBox groupSinger;
    private Label lblName;
    private static SaveFileDialog saveFileDialog;
    private CheckBox chkInvokeWithWine;
    private Label lblDirectory;
    private Button btnCancel;
 
    struct Phon {
        public string Lyric;
        public string FileName;
        public int ClockLength;
        public float Tempo;
        public bool ModeR;
        public Phon( string lyric, string file_name, int clock_length, float tempo, bool mode_r ) {
            Lyric = lyric;
            FileName = file_name;
            ClockLength = clock_length;
            Tempo = tempo;
            ModeR = mode_r;
        }
    }
 
    /// <summary>
    /// 原音設定の引数．
    /// </summary>
    struct OtoArgs {
        /// <summary>
        /// 第1引数．空文字なので使わない
        /// </summary>
        public int A1;
        public int A2;
        public int A3;
        public int A4;
        public int A5;
        public int A6;
    }
 
    public RenderAsUtau() {
        InitializeComponent();
        txtResampler.Text = Resampler;
        txtWavtool.Text = WavTool;
        txtSinger.Text = Singer;
        folderBrowserDialog.SelectedPath = Singer;
        chkInvokeWithWine.Checked = InvokeWithWine;
        saveFileDialog = new SaveFileDialog();
        if ( LastWave != "" ) {
            try {
                saveFileDialog.InitialDirectory = Path.GetDirectoryName( LastWave );
            } catch {
            }
        }
        saveFileDialog.Filter = "Wave File(*.wav)|*.wav|All Files(*.*)|*.*";
 
        bool entered = false;
        if ( txtResampler.Text != "" ) {
            try {
                string dir = Path.GetDirectoryName( txtResampler.Text );
                openFileDialog.InitialDirectory = dir;
                entered = true;
            } catch {
            }
        }
        if ( !entered && txtWavtool.Text != "" ) {
            try {
                string dir = Path.GetDirectoryName( txtWavtool.Text );
                openFileDialog.InitialDirectory = dir;
                entered = true;
            } catch {
            }
        }
        CheckOkButtonAvailable();
        UpdateProfile();
        ApplyLanguage();
    }
 
    void ApplyLanguage() {
        if ( Messaging.Language == "ja" ) {
            groupSinger.Text = "音源";
            groupConfig.Text = "設定";
            btnCancel.Text = "取消";
            btnOk.Text = "了解";
            btnSinger.Text = "探す";
            btnResampler.Text = "探す";
            btnWavtool.Text = "探す";
            chkInvokeWithWine.Text = "wine経由でUTAUコアを起動";
            lblDirectory.Text = "音源フォルダ";
        }
    }
 
    void UpdateProfile() {
        if ( Singer == "" || !Directory.Exists( Singer ) ) {
            pictSumbnail.Image = null;
            lblName.Text = "(Unknown)";
            return;
        }
        string character = Path.Combine( Singer, "character.txt" );
        if ( File.Exists( character ) ) {
            using ( cp932reader sr = new cp932reader( character ) ) {
                string line = "";
                while ( (line = sr.ReadLine()) != null ) {
                    string[] spl = line.Split( "=".ToCharArray(), 2 );
                    if ( spl.Length >= 2 ) {
                        if ( spl[0].ToLower() == "name" ) {
                            lblName.Text = spl[1];
                        } else if ( spl[0].ToLower() == "image" ) {
                            string image = Path.Combine( Singer, spl[1] );
                            if ( File.Exists( image ) ) {
                                try {
                                    pictSumbnail.Image = System.Drawing.Bitmap.FromFile( image );
                                } catch {
                                }
                            }
                        }
                    }
                }
            }
        }
 
        string readme = Path.Combine( Singer, "readme.txt" );
        if ( File.Exists( readme ) ) {
            using ( cp932reader sr = new cp932reader( readme ) ) {
                txtProf.Text = sr.ReadToEnd();
            }
        } else {
            txtProf.Text = "";
        }
    }
 
    public static bool Edit( VsqFile vsq ) {
        using ( RenderAsUtau dlg = new RenderAsUtau() ) {
            if ( dlg.ShowDialog() == DialogResult.OK ) {
                Singer = dlg.txtSinger.Text;
                Resampler = dlg.txtResampler.Text;
                WavTool = dlg.txtWavtool.Text;
                string script = Path.Combine( Application.StartupPath, Path.Combine( "script", "Render As UTAU.cs" ) );//Script.ScriptPath;
                string temp_dir = Path.Combine( Path.GetDirectoryName( script ), Path.GetFileNameWithoutExtension( script ) );
 
#if DEBUG
                StreamWriter sw = new StreamWriter( Path.Combine( temp_dir, "log.txt" ) );
#endif
                // 原音設定を読み込み
                Dictionary<string, OtoArgs> config = new Dictionary<string, OtoArgs>();
                string singer_name = Path.GetFileName( Singer );
                string config_file = Path.Combine( Singer, "oto.ini" );
#if DEBUG
                sw.WriteLine( "Singer=" + Singer );
                sw.WriteLine( "singer_name=" + singer_name );
                sw.WriteLine( "config_file=" + config_file );
#endif
                if ( File.Exists( config_file ) ) {
                    using ( cp932reader sr = new cp932reader( config_file ) ) {
                        string line;
                        while ( sr.Peek() >= 0 ) {
                            line = sr.ReadLine();
                            string[] spl = line.Split( '=' );
                            string a1 = spl[0];
                            string a2 = spl[1];
                            int index = a1.IndexOf( ".wav" );
                            a1 = a1.Substring( 0, index );
                            spl = a2.Split( ',' );
                            OtoArgs oa = new OtoArgs();
                            oa.A1 = 0;
                            oa.A2 = int.Parse( spl[1] );
                            oa.A3 = int.Parse( spl[2] );
                            oa.A4 = int.Parse( spl[3] );
                            oa.A5 = int.Parse( spl[4] );
                            oa.A6 = int.Parse( spl[5] );
                            config.Add( a1, oa );
                        }
                    }
                }
 
                int track = Script.Manager.Selected;
                List<Phon> phons = new List<Phon>();
                if ( !Directory.Exists( temp_dir ) ) {
                    Directory.CreateDirectory( temp_dir );
                }
                int count = -1;
                double sec_end = 0;
                double sec_end_old = 0;
                foreach ( VsqEvent item in vsq.Tracks[track].GetNoteEventEnumerator() ) {
                    count++;
                    double sec_start = vsq.SecFromClock( item.Clock );
                    sec_end_old = sec_end;
                    sec_end = vsq.SecFromClock( item.Clock + item.ID.Length );
                    float t_temp = (float)(item.ID.Length / (sec_end - sec_start) / 8.0);
                    if ( (count == 0 && sec_start > 0.0) || (sec_start > sec_end_old) ) {
                        double sec_start2 = sec_end_old;
                        double sec_end2 = sec_start;
                        float t_temp2 = (float)(item.Clock / (sec_end2 - sec_start2) / 8.0);
                        phons.Add( new Phon( "R", Path.Combine( Singer, "R.wav" ), item.Clock, t_temp2, true ) );
                        count++;
                    }
                    string lyric = item.ID.LyricHandle.L0.Phrase;
                    string note = NoteStringFromNoteNumber( item.ID.Note );
#if DEBUG
                    sw.WriteLine( "note=" + note );
#endif
                    string millisec = ((int)((sec_end - sec_start) * 1000) + 50).ToString();
 
                    //4_あ_C#4_550.wav
                    string filename = Path.Combine( temp_dir, count + "_" + item.ID.Note + "_" + millisec + ".wav" );
#if DEBUG
                    sw.WriteLine( "filename=" + filename );
                    sw.WriteLine();
#endif
                    if ( File.Exists( filename ) ) {
                        File.Delete( filename );
                    }
 
                    phons.Add( new Phon( lyric, filename, item.ID.Length, t_temp, false ) );
 
                    OtoArgs oa = new OtoArgs();
                    if ( config.ContainsKey( lyric ) ) {
                        oa = config[lyric];
                    }
                    string arg = "\"" + Path.Combine( Singer, lyric + ".wav" ) + "\" \"" + filename + "\" \"" + note + "\" 100 L " + oa.A2 + " " + millisec + " " + oa.A3 + " " + oa.A4 + " 100 100";
 
                    using ( System.Diagnostics.Process p = new System.Diagnostics.Process() ) {
                        p.StartInfo.FileName = (InvokeWithWine ? "wine \"" : "\"") + Resampler + "\"";
                        p.StartInfo.Arguments = arg;
                        p.StartInfo.WorkingDirectory = temp_dir;
                        p.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
                        p.Start();
                        p.WaitForExit();
                    }
                }
#if DEBUG
                sw.Close();
#endif
 
                string filebase = "temp.wav";
                string file = Path.Combine( temp_dir, filebase );
                if ( File.Exists( file ) ) {
                    File.Delete( file );
                }
                string file_whd = Path.Combine( temp_dir, filebase + ".whd" );
                if ( File.Exists( file_whd ) ) {
                    File.Delete( file_whd );
                }
                string file_dat = Path.Combine( temp_dir, filebase + ".dat" );
                if ( File.Exists( file_dat ) ) {
                    File.Delete( file_dat );
                }
 
                // wavtoolを呼び出す
                for ( int i = 0; i < phons.Count; i++ ) {
                    OtoArgs oa = new OtoArgs();
                    if ( config.ContainsKey( phons[i].Lyric ) ) {
                        oa = config[phons[i].Lyric];
                    }
                    // 次の音符の先行発声とオーバーラップを取得
                    OtoArgs oa_next = new OtoArgs();
                    if ( i + 1 < phons.Count ) {
                        if ( config.ContainsKey( phons[i + 1].Lyric ) ) {
                            oa_next = config[phons[i + 1].Lyric];
                        }
                    }
                    int mten = oa.A5 + oa_next.A6 - oa_next.A5;
                    string arg = filebase + " \"" + phons[i].FileName + "\" 0 " + phons[i].ClockLength + "@" + string.Format( "{0:f2}", phons[i].Tempo ) + mten.ToString( "+#;-#;0" );
                    if ( phons[i].ModeR ) {
                        arg += " 0 0";
                    } else {
                        arg += " 0 5 35 0 100 100 100 " + oa.A6; // エンベロープ
                    }
 
                    using ( System.Diagnostics.Process p = new System.Diagnostics.Process() ) {
                        p.StartInfo.FileName = (InvokeWithWine ? "wine \"" : "\"") + WavTool + "\"";
                        p.StartInfo.Arguments = arg;
                        p.StartInfo.WorkingDirectory = temp_dir;
                        p.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
                        p.Start();
                        p.WaitForExit();
                    }
                }
 
                // 波形とヘッダを結合
                using ( FileStream fs = new FileStream( file, FileMode.Create ) ) {
                    string[] files = new string[] { file_whd, file_dat };
                    int buflen = 512;
                    byte[] buff = new byte[buflen];
                    for ( int i = 0; i < files.Length; i++ ) {
                        using ( FileStream fs2 = new FileStream( files[i], FileMode.Open ) ) {
                            int len = fs2.Read( buff, 0, buflen );
                            while ( len > 0 ) {
                                fs.Write( buff, 0, len );
                                len = fs2.Read( buff, 0, buflen );
                            }
                        }
                    }
                }
 
                // 後片付け
                foreach ( Phon ph in phons ) {
                    if ( !ph.ModeR ) {
                        if ( File.Exists( ph.FileName ) ) {
                            File.Delete( ph.FileName );
                        }
                    }
                }
                if ( File.Exists( file_whd ) ) {
                    File.Delete( file_whd );
                }
                if ( File.Exists( file_dat ) ) {
                    File.Delete( file_dat );
                }
 
                if ( saveFileDialog.ShowDialog() == DialogResult.OK ) {
                    if ( File.Exists( saveFileDialog.FileName ) ) {
                        File.Delete( saveFileDialog.FileName );
                    }
                    LastWave = saveFileDialog.FileName;
                    File.Move( file, saveFileDialog.FileName );
                } else {
                    File.Delete( file );
                }
                return true;
            } else {
                return false;
            }
        }
    }
 
    private static string NoteStringFromNoteNumber( int note_number ) {
        int odd = note_number % 12;
        string head = (new string[] { "C", "C#", "D", "D#", "E", "F", "F#", "G", "G#", "A", "A#", "B" })[odd];
        return head + (note_number / 12 - 1);
    }
 
    protected override void Dispose( bool disposing ) {
        if ( disposing && (components != null) ) {
            components.Dispose();
        }
        base.Dispose( disposing );
    }
 
    private void InitializeComponent() {
        this.lblResampler = new System.Windows.Forms.Label();
        this.txtSinger = new System.Windows.Forms.TextBox();
        this.btnSinger = new System.Windows.Forms.Button();
        this.groupConfig = new System.Windows.Forms.GroupBox();
        this.chkInvokeWithWine = new System.Windows.Forms.CheckBox();
        this.btnWavtool = new System.Windows.Forms.Button();
        this.btnResampler = new System.Windows.Forms.Button();
        this.txtWavtool = new System.Windows.Forms.TextBox();
        this.txtResampler = new System.Windows.Forms.TextBox();
        this.lblWavtool = new System.Windows.Forms.Label();
        this.btnOk = new System.Windows.Forms.Button();
        this.btnCancel = new System.Windows.Forms.Button();
        this.folderBrowserDialog = new System.Windows.Forms.FolderBrowserDialog();
        this.openFileDialog = new System.Windows.Forms.OpenFileDialog();
        this.pictSumbnail = new System.Windows.Forms.PictureBox();
        this.txtProf = new System.Windows.Forms.TextBox();
        this.groupSinger = new System.Windows.Forms.GroupBox();
        this.lblName = new System.Windows.Forms.Label();
        this.lblDirectory = new System.Windows.Forms.Label();
        this.groupConfig.SuspendLayout();
        ((System.ComponentModel.ISupportInitialize)(this.pictSumbnail)).BeginInit();
        this.groupSinger.SuspendLayout();
        this.SuspendLayout();
        // 
        // lblResampler
        // 
        this.lblResampler.AutoSize = true;
        this.lblResampler.Location = new System.Drawing.Point( 11, 29 );
        this.lblResampler.Name = "lblResampler";
        this.lblResampler.Size = new System.Drawing.Size( 55, 12 );
        this.lblResampler.TabIndex = 0;
        this.lblResampler.Text = "resampler";
        // 
        // txtSinger
        // 
        this.txtSinger.Location = new System.Drawing.Point( 98, 176 );
        this.txtSinger.Name = "txtSinger";
        this.txtSinger.Size = new System.Drawing.Size( 215, 19 );
        this.txtSinger.TabIndex = 2;
        this.txtSinger.TextChanged += new System.EventHandler( this.txtSinger_TextChanged );
        // 
        // btnSinger
        // 
        this.btnSinger.Location = new System.Drawing.Point( 319, 174 );
        this.btnSinger.Name = "btnSinger";
        this.btnSinger.Size = new System.Drawing.Size( 56, 23 );
        this.btnSinger.TabIndex = 3;
        this.btnSinger.Text = "Browse";
        this.btnSinger.UseVisualStyleBackColor = true;
        this.btnSinger.Click += new System.EventHandler( this.btnSinger_Click );
        // 
        // groupConfig
        // 
        this.groupConfig.Controls.Add( this.chkInvokeWithWine );
        this.groupConfig.Controls.Add( this.btnWavtool );
        this.groupConfig.Controls.Add( this.btnResampler );
        this.groupConfig.Controls.Add( this.txtWavtool );
        this.groupConfig.Controls.Add( this.txtResampler );
        this.groupConfig.Controls.Add( this.lblWavtool );
        this.groupConfig.Controls.Add( this.lblResampler );
        this.groupConfig.Location = new System.Drawing.Point( 14, 236 );
        this.groupConfig.Name = "groupConfig";
        this.groupConfig.Size = new System.Drawing.Size( 394, 106 );
        this.groupConfig.TabIndex = 4;
        this.groupConfig.TabStop = false;
        this.groupConfig.Text = "Configuration";
        // 
        // chkInvokeWithWine
        // 
        this.chkInvokeWithWine.AutoSize = true;
        this.chkInvokeWithWine.Location = new System.Drawing.Point( 13, 76 );
        this.chkInvokeWithWine.Name = "chkInvokeWithWine";
        this.chkInvokeWithWine.Size = new System.Drawing.Size( 110, 16 );
        this.chkInvokeWithWine.TabIndex = 8;
        this.chkInvokeWithWine.Text = "Invoke with Wine";
        this.chkInvokeWithWine.UseVisualStyleBackColor = true;
        this.chkInvokeWithWine.CheckedChanged += new System.EventHandler( this.chkInvokeWithWine_CheckedChanged );
        // 
        // btnWavtool
        // 
        this.btnWavtool.Location = new System.Drawing.Point( 319, 49 );
        this.btnWavtool.Name = "btnWavtool";
        this.btnWavtool.Size = new System.Drawing.Size( 56, 23 );
        this.btnWavtool.TabIndex = 7;
        this.btnWavtool.Text = "Browse";
        this.btnWavtool.UseVisualStyleBackColor = true;
        this.btnWavtool.Click += new System.EventHandler( this.btnWavtool_Click );
        // 
        // btnResampler
        // 
        this.btnResampler.Location = new System.Drawing.Point( 319, 24 );
        this.btnResampler.Name = "btnResampler";
        this.btnResampler.Size = new System.Drawing.Size( 56, 23 );
        this.btnResampler.TabIndex = 5;
        this.btnResampler.Text = "Browse";
        this.btnResampler.UseVisualStyleBackColor = true;
        this.btnResampler.Click += new System.EventHandler( this.btnResampler_Click );
        // 
        // txtWavtool
        // 
        this.txtWavtool.Location = new System.Drawing.Point( 77, 51 );
        this.txtWavtool.Name = "txtWavtool";
        this.txtWavtool.Size = new System.Drawing.Size( 236, 19 );
        this.txtWavtool.TabIndex = 6;
        this.txtWavtool.TextChanged += new System.EventHandler( this.txtWavtool_TextChanged );
        // 
        // txtResampler
        // 
        this.txtResampler.Location = new System.Drawing.Point( 77, 26 );
        this.txtResampler.Name = "txtResampler";
        this.txtResampler.Size = new System.Drawing.Size( 236, 19 );
        this.txtResampler.TabIndex = 5;
        this.txtResampler.TextChanged += new System.EventHandler( this.txtResampler_TextChanged );
        // 
        // lblWavtool
        // 
        this.lblWavtool.AutoSize = true;
        this.lblWavtool.Location = new System.Drawing.Point( 11, 54 );
        this.lblWavtool.Name = "lblWavtool";
        this.lblWavtool.Size = new System.Drawing.Size( 44, 12 );
        this.lblWavtool.TabIndex = 1;
        this.lblWavtool.Text = "wavtool";
        // 
        // btnOk
        // 
        this.btnOk.DialogResult = System.Windows.Forms.DialogResult.OK;
        this.btnOk.Location = new System.Drawing.Point( 252, 356 );
        this.btnOk.Name = "btnOk";
        this.btnOk.Size = new System.Drawing.Size( 75, 23 );
        this.btnOk.TabIndex = 6;
        this.btnOk.Text = "OK";
        this.btnOk.UseVisualStyleBackColor = true;
        // 
        // btnCancel
        // 
        this.btnCancel.DialogResult = System.Windows.Forms.DialogResult.Cancel;
        this.btnCancel.Location = new System.Drawing.Point( 333, 356 );
        this.btnCancel.Name = "btnCancel";
        this.btnCancel.Size = new System.Drawing.Size( 75, 23 );
        this.btnCancel.TabIndex = 7;
        this.btnCancel.Text = "Cancel";
        this.btnCancel.UseVisualStyleBackColor = true;
        // 
        // openFileDialog
        // 
        this.openFileDialog.FileName = "openFileDialog1";
        // 
        // pictSumbnail
        // 
        this.pictSumbnail.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
        this.pictSumbnail.Location = new System.Drawing.Point( 18, 52 );
        this.pictSumbnail.Name = "pictSumbnail";
        this.pictSumbnail.Size = new System.Drawing.Size( 100, 100 );
        this.pictSumbnail.TabIndex = 8;
        this.pictSumbnail.TabStop = false;
        // 
        // txtProf
        // 
        this.txtProf.BackColor = System.Drawing.SystemColors.Window;
        this.txtProf.Location = new System.Drawing.Point( 131, 47 );
        this.txtProf.Multiline = true;
        this.txtProf.Name = "txtProf";
        this.txtProf.ReadOnly = true;
        this.txtProf.ScrollBars = System.Windows.Forms.ScrollBars.Both;
        this.txtProf.Size = new System.Drawing.Size( 247, 111 );
        this.txtProf.TabIndex = 9;
        this.txtProf.WordWrap = false;
        // 
        // groupSinger
        // 
        this.groupSinger.Controls.Add( this.lblDirectory );
        this.groupSinger.Controls.Add( this.lblName );
        this.groupSinger.Controls.Add( this.pictSumbnail );
        this.groupSinger.Controls.Add( this.txtProf );
        this.groupSinger.Controls.Add( this.txtSinger );
        this.groupSinger.Controls.Add( this.btnSinger );
        this.groupSinger.Location = new System.Drawing.Point( 14, 12 );
        this.groupSinger.Name = "groupSinger";
        this.groupSinger.Size = new System.Drawing.Size( 394, 218 );
        this.groupSinger.TabIndex = 10;
        this.groupSinger.TabStop = false;
        this.groupSinger.Text = "Singer";
        // 
        // lblName
        // 
        this.lblName.AutoSize = true;
        this.lblName.Font = new System.Drawing.Font( "MS UI Gothic", 9.75F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(128)) );
        this.lblName.Location = new System.Drawing.Point( 21, 23 );
        this.lblName.Name = "lblName";
        this.lblName.Size = new System.Drawing.Size( 74, 13 );
        this.lblName.TabIndex = 10;
        this.lblName.Text = "(Unknown)";
        // 
        // lblDirectory
        // 
        this.lblDirectory.AutoSize = true;
        this.lblDirectory.Location = new System.Drawing.Point( 11, 179 );
        this.lblDirectory.Name = "lblDirectory";
        this.lblDirectory.Size = new System.Drawing.Size( 81, 12 );
        this.lblDirectory.TabIndex = 11;
        this.lblDirectory.Text = "voice directory";
        // 
        // RenderAsUtau
        // 
        this.AcceptButton = this.btnOk;
        this.AutoScaleDimensions = new System.Drawing.SizeF( 6F, 12F );
        this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
        this.CancelButton = this.btnCancel;
        this.ClientSize = new System.Drawing.Size( 420, 393 );
        this.Controls.Add( this.groupSinger );
        this.Controls.Add( this.btnCancel );
        this.Controls.Add( this.btnOk );
        this.Controls.Add( this.groupConfig );
        this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle;
        this.MaximizeBox = false;
        this.MinimizeBox = false;
        this.Name = "RenderAsUtau";
        this.ShowIcon = false;
        this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent;
        this.Text = "Render As UTAU";
        this.groupConfig.ResumeLayout( false );
        this.groupConfig.PerformLayout();
        ((System.ComponentModel.ISupportInitialize)(this.pictSumbnail)).EndInit();
        this.groupSinger.ResumeLayout( false );
        this.groupSinger.PerformLayout();
        this.ResumeLayout( false );
 
    }
 
    private void btnSinger_Click( object sender, EventArgs e ) {
        if ( folderBrowserDialog.ShowDialog() == DialogResult.OK ) {
            txtSinger.Text = folderBrowserDialog.SelectedPath;
            UpdateProfile();
        }
    }
 
    private void CheckOkButtonAvailable() {
        if ( !File.Exists( Resampler ) || !File.Exists( WavTool ) || !Directory.Exists( Singer ) ) {
            btnOk.Enabled = false;
        } else {
            btnOk.Enabled = true;
        }
    }
 
    private void btnResampler_Click( object sender, EventArgs e ) {
        if ( openFileDialog.ShowDialog() == DialogResult.OK ) {
            txtResampler.Text = openFileDialog.FileName;
        }
    }
 
    private void btnWavtool_Click( object sender, EventArgs e ) {
        if ( openFileDialog.ShowDialog() == DialogResult.OK ) {
            txtWavtool.Text = openFileDialog.FileName;
        }
    }
 
    private void txtResampler_TextChanged( object sender, EventArgs e ) {
        Resampler = txtResampler.Text;
        CheckOkButtonAvailable();
    }
 
    private void txtWavtool_TextChanged( object sender, EventArgs e ) {
        WavTool = txtWavtool.Text;
        CheckOkButtonAvailable();
    }
 
    private void txtSinger_TextChanged( object sender, EventArgs e ) {
        Singer = txtSinger.Text;
        CheckOkButtonAvailable();
        UpdateProfile();
    }
 
    private void chkInvokeWithWine_CheckedChanged( object sender, EventArgs e ) {
        InvokeWithWine = chkInvokeWithWine.Checked;
    }
}