Filters/FilterImage.cs

   1 //
   2 // FilterImage.cs
   3 //
   4 // Copyright (C) 2004 Novell, Inc.
   5 //
   6
   7 //
   8 // Permission is hereby granted, free of charge, to any person obtaining a
   9 // copy of this software and associated documentation files (the "Software"),
  10 // to deal in the Software without restriction, including without limitation
  11 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
  12 // and/or sell copies of the Software, and to permit persons to whom the
  13 // Software is furnished to do so, subject to the following conditions:
  14 //
  15 // The above copyright notice and this permission notice shall be included in
  16 // all copies or substantial portions of the Software.
  17 //
  18 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  21 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  22 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  23 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  24 // DEALINGS IN THE SOFTWARE.
  25 //
  26
  27 using System;
  28 using System.Collections;
  29 using System.IO;
  30 using System.Text;
  31
  32 using Beagle.Util;
  33 using SemWeb;
  34
  35 namespace Beagle.Filters {
  36
  37         [PropertyKeywordMapping (Keyword="imagetag", PropertyName="image:tag", IsKeyword=false, Description="FSpot, Digikam image tags")]
  38         [PropertyKeywordMapping (Keyword="comment", PropertyName="fixme:comment", IsKeyword=false, Description="User comments")]
  39         public abstract class FilterImage : Beagle.Daemon.Filter {
  40
  41                 public FilterImage ()
  42                 {
  43                         // 1: Base
  44                         // 2: Added fspot:IsIndexed field, added width & height properties
  45                         // 3: Add Digikam tags and caption
  46                         SetVersion (3);
  47                 }
  48
  49                 protected virtual void PullImageProperties () { }
  50
  51                 private int width = -1;
  52                 private int height = -1;
  53                 private int depth = -1;
  54
  55                 protected int Width {
  56                         set { width = value; }
  57                         get { return width; }
  58                 }
  59
  60                 protected int Height {
  61                         set { height = value; }
  62                         get { return height; }
  63                 }
  64
  65                 protected int Depth {
  66                         set { depth = value; }
  67                         get { return depth; }
  68                 }
  69
  70                 protected override void DoPullProperties ()
  71                 {
  72                         PullImageProperties ();
  73
  74                         if (width > 0)
  75                                 AddProperty (Beagle.Property.NewUnsearched ("fixme:width", width));
  76
  77                         if (height > 0)
  78                                 AddProperty (Beagle.Property.NewUnsearched ("fixme:height", height));
  79
  80                         if (depth > 0)
  81                                 AddProperty (Beagle.Property.NewUnsearched ("fixme:depth", depth));
  82
  83                         try {
  84                                 AddFSpotInformation (this.FileInfo.FullName);
  85                                 AddDigikamInformation (this.FileInfo.FullName);
  86                         } catch (Exception ex) {
  87                                 Logger.Log.Error ("Exception trying to retrieve FSpot/Digikam information:" + ex);
  88                         }
  89
  90
  91                 }
  92
  93                 private void AddFSpotInformation (string path)
  94                 {
  95                         FSpotTools.Photo photo = FSpotTools.GetPhoto (this.FileInfo.FullName);
  96
  97                         if (photo == null)
  98                                 return;
  99
 100                         AddProperty (Beagle.Property.NewBool ("fspot:IsIndexed", true));
 101
 102                         AddProperty (Beagle.Property.New ("fspot:Description", photo.Description));
 103                         AddProperty (Beagle.Property.NewUnstored ("fixme:comment", photo.Description));
 104
 105                         foreach (FSpotTools.Tag tag in photo.Tags) {
 106                                 AddProperty (Beagle.Property.New ("fspot:Tag", tag.Name));
 107                                 AddProperty (Beagle.Property.NewUnstored ("image:tag", tag.Name));
 108                         }
 109                 }
 110
 111                 private void AddDigikamInformation (string path)
 112                 {
 113                         DigikamTags.DigikamData digikam_data = DigikamTags.GetDigikamData (this.FileInfo.FullName);
 114
 115                         if (digikam_data == null)
 116                                 return;
 117
 118                         AddProperty (Beagle.Property.NewBool ("digikam:IsIndexed", true));
 119
 120                         AddProperty (Beagle.Property.New ("digikam:caption", digikam_data.caption));
 121                         AddProperty (Beagle.Property.NewUnstored ("fixme:comment", digikam_data.caption));
 122
 123                         foreach (string tag in digikam_data.Tags) {
 124                                 AddProperty (Beagle.Property.New ("digikam:Tag", tag));
 125                                 AddProperty (Beagle.Property.NewUnstored ("image:tag", tag));
 126                         }
 127                 }
 128
 129                 internal void AddXmpProperties (XmpFile xmp)
 130                 {
 131                         Resource subject_anon = null;
 132                         Resource creator_anon = null;
 133                         Resource rights_anon = null;
 134
 135                         foreach (Statement stmt in xmp.Store) {
 136                                 if (stmt.Predicate == MetadataStore.Namespaces.Resolve ("dc:subject")) {
 137                                         //Console.WriteLine ("found subject");
 138                                         subject_anon = stmt.Object;
 139                                 } else if (stmt.Predicate == MetadataStore.Namespaces.Resolve ("dc:creator")) {
 140                                         //Console.WriteLine ("found creator");
 141                                         creator_anon = stmt.Object;
 142                                 } else if (stmt.Predicate == MetadataStore.Namespaces.Resolve ("dc:rights")) {
 143                                         rights_anon = stmt.Object;
 144                                 } else if (stmt.Predicate == MetadataStore.Namespaces.Resolve ("dc:title")) {
 145                                         AddProperty (Beagle.Property.New ("dc:title", ((Literal)stmt.Object).Value));
 146                                 } else if (stmt.Predicate == MetadataStore.Namespaces.Resolve ("tiff:Model")) {
 147                                         // NOTE: the namespaces for xmp and beagle don't always match up
 148                                         AddProperty (Beagle.Property.New ("exif:Model", ((Literal)stmt.Object).Value));
 149                                 }
 150                         }
 151
 152                         foreach (Statement stmt in xmp.Store) {
 153                                 if (stmt.Subject == subject_anon &&
 154                                     stmt.Predicate != MetadataStore.Namespaces.Resolve ("rdf:type")) {
 155                                         AddProperty (Beagle.Property.New ("dc:subject", ((Literal)stmt.Object).Value));
 156                                 } else if (stmt.Subject == creator_anon &&
 157                                            stmt.Predicate != MetadataStore.Namespaces.Resolve ("rdf:type")) {
 158                                         AddProperty (Beagle.Property.New ("dc:creator", ((Literal)stmt.Object).Value));
 159                                 } else if (stmt.Subject == rights_anon &&
 160                                            stmt.Predicate != MetadataStore.Namespaces.Resolve ("rdf:type")) {
 161                                         AddProperty (Beagle.Property.New ("dc:rights", ((Literal)stmt.Object).Value));
 162                                 }
 163                         }
 164                 }
 165         }
 166 }