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path: root/Game/Code/Classes/USongs.pas
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unit USongs;

interface
uses SysUtils, ULog, UTexture, UCatCovers;

const
  SONG_LOAD_COMPLETE = true;
  SONG_LOAD_NOTES = false;

type
  TMedleySource = ( msNone, msCalculated, msTag );

  TMedley = record
    Source:       TMedleySource;  //source of the information
    StartBeat:    integer;  //start beat of medley
    EndBeat:      integer;  //end beat of medley
    FadeIn_time:  real;     //FadeIn-Time in seconds
    FadeOut_time: real;     //FadeOut-Time in seconds
  end;

  { used to hold header tags that are not supported by this version of
    usdx (e.g. some tags from ultrastar 0.7.0) when songs are loaded in
    songeditor. They will be written the end of the song header } //from usdx 1.1
  TCustomHeaderTag = record
    Tag: String;
    Content: String;
  end;

  TBPM = record
    BPM:        real;
    StartBeat:  real;
  end;

  TScore = record
    Name:       string;
    Score:      integer;
    Length:     string;
    Date:       string;
  end;

  TSong = record
    Path:       string;
    Folder:     string; // for sorting by folder
    FileName:   string;

    Medley:     TMedley;
    PreviewStart: real; //in seconds
    CustomTags: array of TCustomHeaderTag; // from 1.1

    // sorting methods
    Category:   array of string; // I think I won't need this
    Genre:      string;
    Edition:    string;
    Language:   string; // 0.5.0: new

    Title:      string;
    Artist:     string;

    Text:       string;
    Creator:    string;

    Cover:      string;
    CoverTex:   TTexture;
    Mp3:        string;
    Background: string;
    Video:      string;
    VideoGAP:   real;
    VideoLoaded: boolean; // 0.5.0: true if the video has been loaded 
    NotesGAP:   integer;
    Start:      real; // in seconds
    Finish:     integer; // in miliseconds
    Relative:   boolean;
    Resolution: integer;
    BPM:        array of TBPM;
    GAP:        real; // in miliseconds

    Score:      array[0..2] of array of TScore;

    // these are used when sorting is enabled
    Visible:    boolean; // false if hidden, true if visible
    Main:       boolean; // false for songs, true for category buttons
    OrderNum:   integer; // has a number of category for category buttons and songs
    OrderTyp:   integer; // type of sorting for this button (0=name)
    CatNumber:  integer; // Count of Songs in Category for Cats and Number of Song in Category for Songs
  end;

  TSongs = class
  private
    BrowsePos: Cardinal; //Actual Pos in Song Array
  public
    Song:       array of TSong; // array of songs
    Selected:   integer; // selected song index
    procedure LoadSongList; // load all songs
    procedure BrowseDir(Dir: string); // should return number of songs in the future
    procedure Sort(Order: integer);
    function FindSongFile(Dir, Mask: string): string;
  end;

  TCatSongs = class
    Song:       array of TSong; // array of categories with songs
    Selected:   integer; // selected song index
    Order:      integer; // order type (0=title)
    CatNumShow: integer; // Category Number being seen
    CatCount:   integer; //Number of Categorys

    procedure Refresh; // refreshes arrays by recreating them from Songs array
//    procedure Sort(Order: integer);
    procedure ShowCategory(Index: integer); // expands all songs in category
    procedure HideCategory(Index: integer); // hides all songs in category
    procedure ClickCategoryButton(Index: integer); // uses ShowCategory and HideCategory when needed
    procedure ShowCategoryList; //Hides all Songs And Show the List of all Categorys
    function FindNextVisible(SearchFrom:integer): integer; //Find Next visible Song
    function VisibleSongs: integer; // returns number of visible songs (for tabs)
    function VisibleIndex(Index: integer): integer; // returns visible song index (skips invisible)

    function SetFilter(FilterStr: String; const fType: Byte): Cardinal;
  end;

var
  Songs:      TSongs; // all songs
  CatSongs:   TCatSongs; // categorized songs
  AktSong:    TSong; // one song *unknown use)

implementation

uses UFiles, UIni, StrUtils, Umusic;

procedure TSongs.LoadSongList;
begin
  Log.LogStatus('Initializing', 'LoadSongList');

  // clear
  Setlength(Song, 50);

  BrowsePos := 0;
  // browse directories
  BrowseDir(SongPath);

  //Set Correct SongArray Length
  SetLength(Song, BrowsePos);
//  if Ini.Debug = 1 then BrowseDir('D:\Extract\Songs\');
end;

procedure TSongs.BrowseDir(Dir: string);
var
  SR:     TSearchRec;   // for parsing Songs Directory
  SLen:   integer;
  res:    boolean;
begin
  if FindFirst(Dir + '*', faDirectory, SR) = 0 then begin
    repeat
      if (SR.Name <> '.') and (SR.Name <> '..') then
        BrowseDir(Dir + Sr.Name + '\');
    until FindNext(SR) <> 0;
  end; // if
  FindClose(SR);

//        Log.LogStatus('Parsing directory: ' + Dir + SR.Name, 'LoadSongList');

 if FindFirst(Dir + '*.txt', 0, SR) = 0 then begin
//          Log.LogStatus('Parsing file:      ' + Dir + SR.Name + '\' + SRD.Name, 'LoadSongList');
    repeat
      //New Mod for better Memory Management

      SLen := BrowsePos;
      {//Old
      SLen := Length(Song);
      SetLength(Song, SLen + 1);//}

      Song[SLen].Path := Dir;
      Song[SLen].Folder := Copy(Dir, Length(SongPath)+1, 10000);
      Song[SLen].Folder := Copy(Song[SLen].Folder, 1, Pos('\', Song[SLen].Folder)-1);
      Song[SLen].FileName := SR.Name;

      res := AnalyseFile(Song[SLen]); //TODO Hash?

      if res then
      begin
        SetLength(Czesci, 1);
        AktSong := Song[SLen];
        res := LoadSong(Song[SLen].Path + Song[SLen].FileName, SONG_LOAD_NOTES); //TODO Hash?

        if res then
        begin
          Song[SLen]:=AktSong;
          FindRefrainStart(Song[SLen]);
        end;
      end;

      if (not res) then Dec(BrowsePos)
      else begin
        // scanning complete, file is good
        // if there is no cover then try to find it
        if Song[SLen].Cover = '' then Song[SLen].Cover := FindSongFile(Dir, '*[CO].jpg');
//        if Song[SLen].Background = '' then begin
//          Song[SLen].Background := FindSongFile(Dir, '*[BG].jpg');
//        end; // no needed here}

        // fix by adding path. no, don't fix it.
//        if Song[SLen].Cover <> '' then
//          Song[SLen].Cover := Song[SLen].Path + Song[SLen].Cover;
      end;

      //Change Length Only every 50 Entrys
      Inc(BrowsePos);
      
      if (BrowsePos mod 50 = 0) AND (BrowsePos <> 0) then
      begin
          SetLength(Song, Length(Song) + 50);
      end;

    until FindNext(SR) <> 0;
    end; // if FindFirst
  FindClose(SR);
end;

procedure TSongs.Sort(Order: integer);
var
  S:    integer;
  S2:   integer;
  TempSong:   TSong;
begin
  case Order of
    sEdition: // by edition
      begin
        for S2 := 0 to Length(Song)-1 do
          for S := 1 to Length(Song)-1 do
            if CompareText(Song[S].Edition, Song[S-1].Edition) < 0 then begin
              // zamiana miejscami
              TempSong := Song[S-1];
              Song[S-1] := Song[S];
              Song[S] := TempSong;
            end;
      end;
    sGenre: // by genre
      begin
        for S2 := 0 to Length(Song)-1 do
          for S := 1 to Length(Song)-1 do
            if CompareText(Song[S].Genre, Song[S-1].Genre) < 0 then begin
              // zamiana miejscami
              TempSong := Song[S-1];
              Song[S-1] := Song[S];
              Song[S] := TempSong;
            end;
      end;
    sTitle: // by title
      begin
        for S2 := 0 to Length(Song)-1 do
          for S := 1 to Length(Song)-1 do
            if CompareText(Song[S].Title, Song[S-1].Title) < 0 then begin
              // zamiana miejscami
              TempSong := Song[S-1];
              Song[S-1] := Song[S];
              Song[S] := TempSong;
            end;

      end;
    sArtist: // by artist
      begin
        for S2 := 0 to Length(Song)-1 do
          for S := 1 to Length(Song)-1 do
            if CompareText(Song[S].Artist, Song[S-1].Artist) < 0 then begin
              // zamiana miejscami
              TempSong := Song[S-1];
              Song[S-1] := Song[S];
              Song[S] := TempSong;
            end;
      end;
    sFolder: // by folder
      begin
        for S2 := 0 to Length(Song)-1 do
          for S := 1 to Length(Song)-1 do
            if CompareText(Song[S].Folder, Song[S-1].Folder) < 0 then begin
              // zamiana miejscami
              TempSong := Song[S-1];
              Song[S-1] := Song[S];
              Song[S] := TempSong;
            end;
      end;
    sTitle2: // by title2
      begin
        for S2 := 0 to Length(Song)-1 do
          for S := 1 to Length(Song)-1 do
            if CompareText(Song[S].Title, Song[S-1].Title) < 0 then begin
              // zamiana miejscami
              TempSong := Song[S-1];
              Song[S-1] := Song[S];
              Song[S] := TempSong;
            end;

      end;
    sArtist2: // by artist2
      begin
        for S2 := 0 to Length(Song)-1 do
          for S := 1 to Length(Song)-1 do
            if CompareText(Song[S].Artist, Song[S-1].Artist) < 0 then begin
              // zamiana miejscami
              TempSong := Song[S-1];
              Song[S-1] := Song[S];
              Song[S] := TempSong;
            end;
      end;
    sLanguage: // by Language
      begin
        for S2 := 0 to Length(Song)-1 do
          for S := 1 to Length(Song)-1 do
            if CompareText(Song[S].Language, Song[S-1].Language) < 0 then begin
              TempSong := Song[S-1];
              Song[S-1] := Song[S];
              Song[S] := TempSong;
            end;
      end;

  end; // case
end;

function TSongs.FindSongFile(Dir, Mask: string): string;
var
  SR:     TSearchRec;   // for parsing song directory
begin
  Result := '';
  if FindFirst(Dir + Mask, faDirectory, SR) = 0 then begin
    Result := SR.Name;
  end; // if
  FindClose(SR);
end;

procedure TCatSongs.Refresh;
var
  S:        integer; // temporary song index
  CatLen:   integer; // length of CatSongs.Song
  Letter:   char; // current letter for sorting using letter
  SS:       string; // current edition for sorting using edition, genre etc.
  Order:    integer; // number used for ordernum
  Letter2:  char; //
  CatNumber:integer; // Number of Song in Category
begin
  CatNumShow := -1;
//  Songs.Sort(0); // by title

case Ini.Sorting of
    sEdition: begin
          Songs.Sort(sArtist);
          Songs.Sort(sEdition);
        end;
    sGenre: begin
          Songs.Sort(sArtist);
          Songs.Sort(sGenre);
        end;
    sLanguage: begin
          Songs.Sort(sArtist);
          Songs.Sort(sLanguage);
        end;
    sFolder:  begin
          Songs.Sort(sArtist);
          Songs.Sort(sFolder);
        end;
    sTitle:  Songs.Sort(sTitle);
    sArtist:  Songs.Sort(sArtist);
    sTitle2:  Songs.Sort(sTitle2); // by title2
    sArtist2:  Songs.Sort(sArtist2); // by artist2

  end; // case


  Letter := ' ';
  SS := '';
  Order := 0;
  CatNumber := 0;

  //Songs leeren
  SetLength (Song, 0);

  for S := Low(Songs.Song) to High(Songs.Song) do begin
    if (Ini.Tabs = 1) then
    if (Ini.Sorting = sEdition) and (CompareText(SS, Songs.Song[S].Edition) <> 0) then begin
      // add Category Button
      Inc(Order);
      SS := Songs.Song[S].Edition;
      CatLen := Length(CatSongs.Song);
      SetLength(CatSongs.Song, CatLen+1);
      CatSongs.Song[CatLen].Artist := '[' + SS + ']';
      CatSongs.Song[CatLen].Main := true;
      CatSongs.Song[CatLen].OrderTyp := 0;
      CatSongs.Song[CatLen].OrderNum := Order;



      // 0.4.3
      // if SS = 'Singstar' then CatSongs.Song[CatLen].Cover := CoversPath + 'Singstar.jpg';
      // if SS = 'Singstar Part 2' then CatSongs.Song[CatLen].Cover := CoversPath + 'Singstar.jpg';
      // if SS = 'Singstar German' then CatSongs.Song[CatLen].Cover := CoversPath + 'Singstar.jpg';
      // if SS = 'Singstar Spanish' then CatSongs.Song[CatLen].Cover := CoversPath + 'Singstar.jpg';
      // if SS = 'Singstar Italian' then CatSongs.Song[CatLen].Cover := CoversPath + 'Singstar.jpg';
      // if SS = 'Singstar French' then CatSongs.Song[CatLen].Cover := CoversPath + 'Singstar.jpg';
      // if SS = 'Singstar Party' then CatSongs.Song[CatLen].Cover := CoversPath + 'Singstar Party.jpg';
      // if SS = 'Singstar Popworld' then CatSongs.Song[CatLen].Cover := CoversPath + 'Singstar Popworld.jpg';
      // if SS = 'Singstar 80s' then CatSongs.Song[CatLen].Cover := CoversPath + 'Singstar 80s.jpg';
      // if SS = 'Singstar 80s Polish' then CatSongs.Song[CatLen].Cover := CoversPath + 'Singstar 80s.jpg';
      // if SS = 'Singstar Rocks' then CatSongs.Song[CatLen].Cover := CoversPath + 'Singstar Rocks.jpg';
      // if SS = 'Singstar Anthems' then CatSongs.Song[CatLen].Cover := CoversPath + 'Singstar Anthems.jpg';

      {// cover-patch
      if FileExists(CoversPath + SS + '.jpg') then CatSongs.Song[CatLen].Cover := CoversPath + SS + '.jpg'
      else if FileExists(CoversPath + 'NoCover.jpg') then CatSongs.Song[CatLen].Cover := CoversPath + 'NoCover.jpg';//}

      CatSongs.Song[CatLen].Cover := CatCovers.GetCover(Ini.Sorting, SS);

      //CatNumber Patch
      if (SS <> '') then
      begin
        if (CatLen - CatNumber - 1>=0) then
          Song[CatLen - CatNumber - 1].CatNumber := CatNumber;//Set CatNumber of Categroy
        CatNumber := 0;
      end;

      CatSongs.Song[CatLen].Visible := true;
    end

    else if (Ini.Sorting = sGenre) and (CompareText(SS, Songs.Song[S].Genre) <> 0) then begin
      // add Genre Button
      Inc(Order);
      SS := Songs.Song[S].Genre;
      CatLen := Length(CatSongs.Song);
      SetLength(CatSongs.Song, CatLen+1);
      CatSongs.Song[CatLen].Artist := SS;
      CatSongs.Song[CatLen].Main := true;
      CatSongs.Song[CatLen].OrderTyp := 0;
      CatSongs.Song[CatLen].OrderNum := Order;

      {// cover-patch
      if FileExists(CoversPath + SS + '.jpg') then CatSongs.Song[CatLen].Cover := CoversPath + SS + '.jpg'
      else if FileExists(CoversPath + 'NoCover.jpg') then CatSongs.Song[CatLen].Cover := CoversPath + 'NoCover.jpg';}
      CatSongs.Song[CatLen].Cover := CatCovers.GetCover(Ini.Sorting, SS);

      //CatNumber Patch
      if (SS <> '') then
      begin
        if (CatLen - CatNumber - 1>=0) then
          Song[CatLen - CatNumber - 1].CatNumber := CatNumber;//Set CatNumber of Categroy
        CatNumber := 0;
      end;

      CatSongs.Song[CatLen].Visible := true;
    end

    else if (Ini.Sorting = sLanguage) and (CompareText(SS, Songs.Song[S].Language) <> 0) then begin
      // add Language Button
      Inc(Order);
      SS := Songs.Song[S].Language;
      CatLen := Length(CatSongs.Song);
      SetLength(CatSongs.Song, CatLen+1);
      CatSongs.Song[CatLen].Artist := SS;
      CatSongs.Song[CatLen].Main := true;
      CatSongs.Song[CatLen].OrderTyp := 0;
      CatSongs.Song[CatLen].OrderNum := Order;

      {// cover-patch
      if FileExists(CoversPath + SS + '.jpg') then CatSongs.Song[CatLen].Cover := CoversPath + SS + '.jpg'
      else if FileExists(CoversPath + 'NoCover.jpg') then CatSongs.Song[CatLen].Cover := CoversPath + 'NoCover.jpg';}
      CatSongs.Song[CatLen].Cover := CatCovers.GetCover(Ini.Sorting, SS);

      //CatNumber Patch
      if (SS <> '') then
      begin
        if (CatLen - CatNumber - 1>=0) then
          Song[CatLen - CatNumber - 1].CatNumber := CatNumber;//Set CatNumber of Categroy
        CatNumber := 0;
      end;

      CatSongs.Song[CatLen].Visible := true;
    end

    else if (Ini.Sorting = sTitle) and (Length(Songs.Song[S].Title)>=1) and (Letter <> UpCase(Songs.Song[S].Title[1])) then begin
      // add a letter Category Button
      Inc(Order);
      Letter := UpCase(Songs.Song[S].Title[1]);
      CatLen := Length(CatSongs.Song);
      SetLength(CatSongs.Song, CatLen+1);
      CatSongs.Song[CatLen].Artist := '[' + Letter + ']';
      CatSongs.Song[CatLen].Main := true;
      CatSongs.Song[CatLen].OrderTyp := 0;
//      Order := ord(Letter);
      CatSongs.Song[CatLen].OrderNum := Order;


      {// cover-patch
      if FileExists(CoversPath + 'Title' + Letter + '.jpg') then CatSongs.Song[CatLen].Cover := CoversPath + 'Title' + Letter + '.jpg'
      else if FileExists(CoversPath + 'NoCover.jpg') then CatSongs.Song[CatLen].Cover := CoversPath + 'NoCover.jpg';}
      CatSongs.Song[CatLen].Cover := CatCovers.GetCover(Ini.Sorting, Letter);

      //CatNumber Patch
      if (Letter <> ' ') then
      begin
        if (CatLen - CatNumber - 1>=0) then
          Song[CatLen - CatNumber - 1].CatNumber := CatNumber;//Set CatNumber of Categroy
        CatNumber := 0;
      end;

      CatSongs.Song[CatLen].Visible := true;
    end

    else if (Ini.Sorting = sArtist) and (Length(Songs.Song[S].Artist)>=1) and (Letter <> UpCase(Songs.Song[S].Artist[1])) then begin
      // add a letter Category Button
      Inc(Order);
      Letter := UpCase(Songs.Song[S].Artist[1]);
      CatLen := Length(CatSongs.Song);
      SetLength(CatSongs.Song, CatLen+1);
      CatSongs.Song[CatLen].Artist := '[' + Letter + ']';
      CatSongs.Song[CatLen].Main := true;
      CatSongs.Song[CatLen].OrderTyp := 0;
//      Order := ord(Letter);
      CatSongs.Song[CatLen].OrderNum := Order;

      {// cover-patch
      if FileExists(CoversPath + 'Artist' + Letter + '.jpg') then CatSongs.Song[CatLen].Cover := CoversPath + 'Artist' + Letter + '.jpg'
      else if FileExists(CoversPath + 'NoCover.jpg') then CatSongs.Song[CatLen].Cover := CoversPath + 'NoCover.jpg';}
      CatSongs.Song[CatLen].Cover := CatCovers.GetCover(Ini.Sorting, Letter);

      //CatNumber Patch
      if (Letter <> ' ') then
      begin
        if (CatLen - CatNumber - 1>=0) then
          Song[CatLen - CatNumber - 1].CatNumber := CatNumber;//Set CatNumber of Categroy
        CatNumber := 0;
      end;

      CatSongs.Song[CatLen].Visible := true;
    end

    else if (Ini.Sorting = sFolder) and (CompareText(SS, Songs.Song[S].Folder) <> 0) then begin
      // 0.5.0: add folder tab
      Inc(Order);
      SS := Songs.Song[S].Folder;
      CatLen := Length(CatSongs.Song);
      SetLength(CatSongs.Song, CatLen+1);
      CatSongs.Song[CatLen].Artist := SS;
      CatSongs.Song[CatLen].Main := true;
      CatSongs.Song[CatLen].OrderTyp := 0;
      CatSongs.Song[CatLen].OrderNum := Order;

      {// cover-patch
      if FileExists(CoversPath + SS + '.jpg') then CatSongs.Song[CatLen].Cover := CoversPath + SS + '.jpg'
      else if FileExists(CoversPath + 'NoCover.jpg') then CatSongs.Song[CatLen].Cover := CoversPath + 'NoCover.jpg';}
      CatSongs.Song[CatLen].Cover := CatCovers.GetCover(Ini.Sorting, SS);

      //CatNumber Patch
      if (SS <> '') then
      begin
        if (CatLen - CatNumber - 1>=0) then
          Song[CatLen - CatNumber - 1].CatNumber := CatNumber;//Set CatNumber of Categroy
        CatNumber := 0;
      end;

      CatSongs.Song[CatLen].Visible := true;
    end

    else if (Ini.Sorting = sTitle2) AND (Length(Songs.Song[S].Title)>=1) then begin
      if (ord(Songs.Song[S].Title[1]) > 47) and (ord(Songs.Song[S].Title[1]) < 58) then Letter2 := '#' else Letter2 := UpCase(Songs.Song[S].Title[1]);
      if (Letter <> Letter2) then begin
        // add a letter Category Button
        Inc(Order);
        Letter := Letter2;
        CatLen := Length(CatSongs.Song);
        SetLength(CatSongs.Song, CatLen+1);
        CatSongs.Song[CatLen].Artist := '[' + Letter + ']';
        CatSongs.Song[CatLen].Main := true;
        CatSongs.Song[CatLen].OrderTyp := 0;
//      Order := ord(Letter);
        CatSongs.Song[CatLen].OrderNum := Order;

        {// cover-patch
        if FileExists(CoversPath + 'Title' + Letter + '.jpg') then CatSongs.Song[CatLen].Cover := CoversPath + 'Title' + Letter + '.jpg'
        else if FileExists(CoversPath + 'NoCover.jpg') then CatSongs.Song[CatLen].Cover := CoversPath + 'NoCover.jpg';}
        CatSongs.Song[CatLen].Cover := CatCovers.GetCover(Ini.Sorting, Letter);

        //CatNumber Patch
      if (Letter <> ' ') then
      begin
        if (CatLen - CatNumber - 1>=0) then
          Song[CatLen - CatNumber - 1].CatNumber := CatNumber;//Set CatNumber of Categroy
        CatNumber := 0;
      end;

        CatSongs.Song[CatLen].Visible := true;
      end;
    end

    else if (Ini.Sorting = sArtist2) AND (Length(Songs.Song[S].Artist)>=1) then begin
     if (ord(Songs.Song[S].Artist[1]) > 47) and (ord(Songs.Song[S].Artist[1]) < 58) then Letter2 := '#' else Letter2 := UpCase(Songs.Song[S].Artist[1]);
       if (Letter <> Letter2) then begin
        // add a letter Category Button
        Inc(Order);
        Letter := Letter2;
        CatLen := Length(CatSongs.Song);
        SetLength(CatSongs.Song, CatLen+1);
        CatSongs.Song[CatLen].Artist := '[' + Letter + ']';
        CatSongs.Song[CatLen].Main := true;
        CatSongs.Song[CatLen].OrderTyp := 0;
//      Order := ord(Letter);
        CatSongs.Song[CatLen].OrderNum := Order;

        {// cover-patch
        if FileExists(CoversPath + 'Artist' + Letter + '.jpg') then CatSongs.Song[CatLen].Cover := CoversPath + 'Artist' + Letter + '.jpg'
        else if FileExists(CoversPath + 'NoCover.jpg') then CatSongs.Song[CatLen].Cover := CoversPath + 'NoCover.jpg';}
        CatSongs.Song[CatLen].Cover := CatCovers.GetCover(Ini.Sorting, Letter);

        //CatNumber Patch
        if (Letter <> ' ') then
        begin
          if (CatLen - CatNumber - 1>=0) then
            Song[CatLen - CatNumber - 1].CatNumber := CatNumber;//Set CatNumber of Categroy
          CatNumber := 0;
        end;
        
        CatSongs.Song[CatLen].Visible := true;
      end;
    end;


    CatLen := Length(CatSongs.Song);
    SetLength(CatSongs.Song, CatLen+1);

    Inc (CatNumber); //Increase Number in Cat

    CatSongs.Song[CatLen] := Songs.Song[S];
    CatSongs.Song[CatLen].OrderNum := Order; // assigns category
    CatSongs.Song[CatLen].CatNumber := CatNumber;

    if (Ini.Tabs = 0) then CatSongs.Song[CatLen].Visible := true
    else if (Ini.Tabs = 1) then CatSongs.Song[CatLen].Visible := false;
//    if (Ini.Tabs = 1) and (Order = 1) then CatSongs.Song[CatLen].Visible := true; // open first tab
//CatSongs.Song[CatLen].Visible := true;

  end;
//CatNumber Patch - Set CatNumber of Last Category
if (ini.Tabs_at_startup = 1) And (high(Song) >=1) then
  Song[CatLen - CatNumber].CatNumber := CatNumber;//Set CatNumber of Categroy
//CatCount Patch
CatCount := Order;
end;

procedure TCatSongs.ShowCategory(Index: integer);
var
  S:    integer; // song
begin
  CatNumShow := Index;
  for S := 0 to high(CatSongs.Song) do
  begin
    if (CatSongs.Song[S].OrderNum = Index) AND (Not CatSongs.Song[S].Main) then
      CatSongs.Song[S].Visible := true
    else
      CatSongs.Song[S].Visible := false;
  end;
end;

procedure TCatSongs.HideCategory(Index: integer); // hides all songs in category
var
  S:    integer; // song
begin
  for S := 0 to high(CatSongs.Song) do begin
    if not CatSongs.Song[S].Main then
      CatSongs.Song[S].Visible := false // hides all at now
  end;
end;

procedure TCatSongs.ClickCategoryButton(Index: integer);
var
  Num, S:    integer;
begin
  Num := CatSongs.Song[Index].OrderNum;
  if Num <> CatNumShow then
    begin
    ShowCategory(Num);
    end
  else begin
    ShowCategoryList;
  end;
end;

//Hide Categorys when in Category Hack
procedure TCatSongs.ShowCategoryList;
var
  Num, S:    integer;
begin
  //Hide All Songs Show All Cats
  for S := 0 to high(CatSongs.Song) do begin
    if CatSongs.Song[S].Main then
      CatSongs.Song[S].Visible := true
    else
      CatSongs.Song[S].Visible := false
  end;
  CatSongs.Selected := CatNumShow; //Show last shown Category
  CatNumShow := -1;
end;
//Hide Categorys when in Category Hack End

//Wrong song selected when tabs on bug
function TCatSongs.FindNextVisible(SearchFrom:integer): integer;//Find next Visible Song
var
  I: Integer;
  begin
  Result := -1;
  I := SearchFrom + 1;
  while not CatSongs.Song[I].Visible do
    begin
    Inc (I);
    if (I>high(CatSongs.Song)) then
      I := low(CatSongs.Song);
    if (I = SearchFrom) then //Make One Round and no song found->quit
      break;
    end;
  end;
//Wrong song selected when tabs on bug End

function TCatSongs.VisibleSongs: integer;
var
  S:    integer; // song
begin
  Result := 0;
  for S := 0 to high(CatSongs.Song) do
    if CatSongs.Song[S].Visible = true then Inc(Result);
end;

function TCatSongs.VisibleIndex(Index: integer): integer;
var
  S:    integer; // song
begin
  Result := 0;
  for S := 0 to Index-1 do
    if CatSongs.Song[S].Visible = true then Inc(Result);
end;

function TCatSongs.SetFilter(FilterStr: String; const fType: Byte): Cardinal;
var
  I, J: Integer;
  cString: String;
  SearchStr: Array of String;
begin
  {fType: 0: All
          1: Title
          2: Artist}
  FilterStr := Trim(FilterStr);
  if FilterStr<>'' then begin
    Result := 0;
    //Create Search Array
    SetLength(SearchStr, 1);
    I := Pos (' ', FilterStr);
    While (I <> 0) do
    begin
      SetLength (SearchStr, Length(SearchStr) + 1);
      cString := Copy(FilterStr, 1, I-1);
      if (cString <> ' ') AND (cString <> '') then
        SearchStr[High(SearchStr)-1] := cString;
      Delete (FilterStr, 1, I);

      I := Pos (' ', FilterStr);
    end;
    //Copy last Word
    if (FilterStr <> ' ') AND (FilterStr <> '') then
      SearchStr[High(SearchStr)] := FilterStr;

    for I:=0 to High(Song) do begin
      if not Song[i].Main then
      begin
        case fType of
          0: cString := Song[I].Artist + ' ' + Song[i].Title + ' ' + Song[i].Folder;
          1: cString := Song[I].Title;
          2: cString := Song[I].Artist;
        end;
        Song[i].Visible:=True;
        //Look for every Searched Word
        For J := 0 to High(SearchStr) do
        begin
          Song[i].Visible := Song[i].Visible AND AnsiContainsText(cString, SearchStr[J])
        end;
        if Song[i].Visible then
          Inc(Result);
      end
      else
        Song[i].Visible:=False;
    end;
    CatNumShow := -2;
  end
  else begin
    for i:=0 to High(Song) do begin
      Song[i].Visible:=(Ini.Tabs=1)=Song[i].Main;
      CatNumShow := -1;
    end;
    Result := 0;
  end;
end;

end.