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         public abstract class FilterImage : Beagle.Daemon.Filter {
  38
  39                 public FilterImage ()
  40                 {
  41                         // 1: Base
  42                         // 2: Added fspot:IsIndexed field, added width & height properties
  43                         // 3: Add Digikam tags and caption
  44                         SetVersion (3);
  45                 }
  46
  47                 protected virtual void PullImageProperties () { }
  48
  49                 private int width = -1;
  50                 private int height = -1;
  51                 private int depth = -1;
  52
  53                 protected int Width {
  54                         set { width = value; }
  55                         get { return width; }
  56                 }
  57
  58                 protected int Height {
  59                         set { height = value; }
  60                         get { return height; }
  61                 }
  62
  63                 protected int Depth {
  64                         set { depth = value; }
  65                         get { return depth; }
  66                 }
  67
  68                 protected override void DoPullProperties ()
  69                 {
  70                         PullImageProperties ();
  71
  72                         if (width > 0)
  73                                 AddProperty (Beagle.Property.NewUnsearched ("fixme:width", width));
  74
  75                         if (height > 0)
  76                                 AddProperty (Beagle.Property.NewUnsearched ("fixme:height", height));
  77
  78                         if (depth > 0)
  79                                 AddProperty (Beagle.Property.NewUnsearched ("fixme:depth", depth));
  80
  81                         try {
  82                                 AddFSpotInformation (this.FileInfo.FullName);
  83                                 AddDigikamInformation (this.FileInfo.FullName);
  84                         } catch (Exception ex) {
  85                                 Logger.Log.Error ("Exception trying to retrieve FSpot/Digikam information:" + ex);
  86                         }
  87
  88
  89                 }
  90
  91                 private void AddFSpotInformation (string path)
  92                 {
  93                         FSpotTools.Photo photo = FSpotTools.GetPhoto (this.FileInfo.FullName);
  94
  95                         if (photo == null)
  96                                 return;
  97
  98                         AddProperty (Beagle.Property.NewBool ("fspot:IsIndexed", true));
  99
 100                         if (photo.Description != null && photo.Description != "") {
 101                                 AddProperty (Beagle.Property.New ("fspot:Description", photo.Description));
 102                                 AddProperty (Beagle.Property.NewUnstored ("fixme:comment", photo.Description));
 103                         }
 104
 105                         foreach (FSpotTools.Tag tag in photo.Tags) {
 106                                 if (tag.Name != null && tag.Name != "") {
 107                                         AddProperty (Beagle.Property.New ("fspot:Tag", tag.Name));
 108                                         AddProperty (Beagle.Property.NewUnstored ("image:tag", tag.Name));
 109                                 }
 110                         }
 111                 }
 112
 113                 private void AddDigikamInformation (string path)
 114                 {
 115                         DigikamTags.DigikamData digikam_data = DigikamTags.GetDigikamData (this.FileInfo.FullName);
 116
 117                         if (digikam_data == null)
 118                                 return;
 119
 120                         AddProperty (Beagle.Property.NewBool ("digikam:IsIndexed", true));
 121
 122                         if (digikam_data.caption != null && digikam_data.caption != "") {
 123                                 AddProperty (Beagle.Property.New ("digikam:caption", digikam_data.caption));
 124                                 AddProperty (Beagle.Property.NewUnstored ("fixme:comment", digikam_data.caption));
 125                         }
 126
 127                         foreach (string tag in digikam_data.Tags) {
 128                                 AddProperty (Beagle.Property.New ("digikam:Tag", tag));
 129                                 AddProperty (Beagle.Property.NewUnstored ("image:tag", tag));
 130                         }
 131                 }
 132
 133                 internal void AddXmpProperties (XmpFile xmp)
 134                 {
 135                         Resource subject_anon = null;
 136                         Resource creator_anon = null;
 137                         Resource rights_anon = null;
 138
 139                         foreach (Statement stmt in xmp.Store) {
 140                                 if (stmt.Predicate == MetadataStore.Namespaces.Resolve ("dc:subject")) {
 141                                         //Console.WriteLine ("found subject");
 142                                         subject_anon = stmt.Object;
 143                                 } else if (stmt.Predicate == MetadataStore.Namespaces.Resolve ("dc:creator")) {
 144                                         //Console.WriteLine ("found creator");
 145                                         creator_anon = stmt.Object;
 146                                 } else if (stmt.Predicate == MetadataStore.Namespaces.Resolve ("dc:rights")) {
 147                                         rights_anon = stmt.Object;
 148                                 } else if (stmt.Predicate == MetadataStore.Namespaces.Resolve ("dc:title")) {
 149                                         AddProperty (Beagle.Property.New ("dc:title", ((Literal)stmt.Object).Value));
 150                                 } else if (stmt.Predicate == MetadataStore.Namespaces.Resolve ("tiff:Model")) {
 151                                         // NOTE: the namespaces for xmp and beagle don't always match up
 152                                         AddProperty (Beagle.Property.New ("exif:Model", ((Literal)stmt.Object).Value));
 153                                 }
 154                         }
 155
 156                         foreach (Statement stmt in xmp.Store) {
 157                                 if (stmt.Subject == subject_anon &&
 158                                     stmt.Predicate != MetadataStore.Namespaces.Resolve ("rdf:type")) {
 159                                         AddProperty (Beagle.Property.New ("dc:subject", ((Literal)stmt.Object).Value));
 160                                 } else if (stmt.Subject == creator_anon &&
 161                                            stmt.Predicate != MetadataStore.Namespaces.Resolve ("rdf:type")) {
 162                                         AddProperty (Beagle.Property.New ("dc:creator", ((Literal)stmt.Object).Value));
 163                                 } else if (stmt.Subject == rights_anon &&
 164                                            stmt.Predicate != MetadataStore.Namespaces.Resolve ("rdf:type")) {
 165                                         AddProperty (Beagle.Property.New ("dc:rights", ((Literal)stmt.Object).Value));
 166                                 }
 167                         }
 168                 }
 169         }
 170 }