Util/Tag.cs

   1 //
   2 // Tag.cs : Uniform interface for all audio tag types. It handles the most common
   3 //          fields used in music files.
   4 //
   5 // Author:
   6 //              Raphaël Slinckx <raf.raf@wol.be>
   7 //
   8 // Copyright 2004 (C) Raphaël Slinckx
   9 //
  10
  11 //
  12 // Permission is hereby granted, free of charge, to any person obtaining a
  13 // copy of this software and associated documentation files (the "Software"),
  14 // to deal in the Software without restriction, including without limitation
  15 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
  16 // and/or sell copies of the Software, and to permit persons to whom the
  17 // Software is furnished to do so, subject to the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be included in
  20 // all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  23 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  24 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  25 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  26 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  27 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  28 // DEALINGS IN THE SOFTWARE.
  29 //
  30
  31 using System;
  32 using System.IO;
  33 using System.Text;
  34 using System.Collections;
  35
  36 namespace Beagle.Util.AudioUtil {
  37
  38         public class Tag {
  39
  40                 protected Hashtable fields;
  41
  42                 public Tag ()
  43                 {
  44                         fields = new Hashtable ();
  45                         fields["TITLE"] = "";
  46                         fields["ALBUM"] = "";
  47                         fields["ARTIST"] = "";
  48                         fields["GENRE"] = "";
  49                         fields["TRACK"] = "";
  50                         fields["YEAR"] = "";
  51                         fields["COMMENT"] = "";
  52                         fields["VENDOR"] = "";
  53                 }
  54
  55                 public string Title {
  56                         get {
  57                                 return (string) fields["TITLE"];
  58                         }
  59                         set {
  60                                 if(value == null)
  61                                         fields["TITLE"] = "";
  62                                 fields["TITLE"] = value;
  63                         }
  64                 }
  65
  66                 public string Album {
  67                         get {
  68                                 return (string) fields["ALBUM"];
  69                         }
  70                         set {
  71                                 if(value == null)
  72                                         fields["ALBUM"] = "";
  73                                 fields["ALBUM"] = value;
  74                         }
  75
  76                 }
  77
  78                 public string Artist {
  79                         get {
  80                                 return (string) fields["ARTIST"];
  81                         }
  82                         set {
  83                                 if(value == null)
  84                                         fields["ARTIST"] = "";
  85                                 fields["ARTIST"] = value;
  86                         }
  87
  88                 }
  89
  90                 public string Genre {
  91                         get {
  92                                 return (string) fields["GENRE"];
  93                         }
  94                         set {
  95                                 if(value == null)
  96                                         fields["GENRE"] = "";
  97                                 fields["GENRE"] = value;
  98                         }
  99                 }
 100
 101                 public string Track {
 102                         get {
 103                                 return (string) fields["TRACK"];
 104                         }
 105                         set {
 106                                 if(value == null)
 107                                         fields["TRACK"] = "";
 108                                 fields["TRACK"] = value;
 109                         }
 110                 }
 111
 112                 public string Year {
 113                         get {
 114                                 return (string) fields["YEAR"];
 115                         }
 116                         set {
 117                                 if(value == null)
 118                                         fields["YEAR"] = "";
 119                                 fields["YEAR"] = value;
 120                         }
 121                 }
 122
 123                 public string Comment {
 124                         get {
 125                                 return (string) fields["COMMENT"];
 126                         }
 127                         set {
 128                                 if(value == null)
 129                                         fields["COMMENT"] = "";
 130                                 fields["COMMENT"] = value;
 131                         }
 132                 }
 133
 134                 public string Vendor {
 135                         get {
 136                                 return (string) fields["VENDOR"];
 137                         }
 138                         set {
 139                                 if(value == null)
 140                                         fields["VENDOR"] = "";
 141                                 fields["VENDOR"] = value;
 142                         }
 143                 }
 144
 145                 public override string ToString ()
 146                 {
 147                         string s = "Tag content:\n";
 148                         foreach (DictionaryEntry en in fields) {
 149                                 s += "\t";
 150                                 s += en.Key;
 151                                 s += " : ";
 152                                 s += en.Value;
 153                                 s += "\n";
 154                         }
 155                         return s.Substring (0, s.Length-1);
 156                 }
 157
 158                 public void Merge (Tag tag)
 159                 {
 160                         if( Title.Trim () == "")
 161                                 Title = tag.Title;
 162                         if( Artist.Trim () == "")
 163                                 Artist = tag.Artist;
 164                         if( Album.Trim () == "")
 165                                 Album = tag.Album;
 166                         if( Year.Trim () == "")
 167                                 Year = tag.Year;
 168                         if( Comment.Trim () == "")
 169                                 Comment = tag.Comment;
 170                         if( Track.Trim () == "")
 171                                 Track = tag.Track;
 172                         if( Genre.Trim () == "")
 173                                 Genre = tag.Genre;
 174                 }
 175         }
 176 }