concord-images.el

   1 (concord-assign-genre 'image-resource "/usr/local/var/photo/db")
   2
   3 (defun concord-images-encode-url-as-id (url &optional base)
   4   (let (ret)
   5     (cond
   6      ((and base
   7            (string-match (concat "^" (regexp-quote base)) url))
   8       (setq ret (substring url (match-end 0)))
   9       (if (string-match "\\.[a-zA-Z0-9]+$" ret)
  10           (substring ret 0 (match-beginning 0))
  11         ret)
  12       )
  13      ((string-match "^http://\\(hng\\|image\\)\\.\\(chise\\.org\\|kanji\\.zinbun\\.kyoto-u\\.ac\\.jp\\)/images/iiif/" url)
  14       (setq ret (substring url (match-end 0)))
  15       (if (string-match "\\.[a-zA-Z0-9]+$" ret)
  16           (substring ret 0 (match-beginning 0))
  17         ret)
  18       )
  19      ((string-match "^http://\\(hng\\|image\\)\\.\\(chise\\.org\\|kanji\\.zinbun\\.kyoto-u\\.ac\\.jp\\)/images/" url)
  20       (setq ret (substring url (match-end 0)))
  21       (if (string-match "\\.[a-zA-Z0-9]+$" ret)
  22           (substring ret 0 (match-beginning 0))
  23         ret)
  24       )
  25      ((string-match "^http://" url)
  26       (substring url (match-end 0))
  27       )
  28      (t
  29       url))))
  30
  31 (defun concord-images-add-url (url &optional iiif iip base)
  32   (let (img-id img-cobj)
  33     (unless (setq img-cobj (concord-decode-object '=location url
  34                                                   'image-resource))
  35       (setq img-id (intern (concord-images-encode-url-as-id url base)))
  36       (setq img-cobj (concord-make-object 'image-resource img-id))
  37       (concord-object-put img-cobj '=location url)
  38       (when iiif
  39         (concord-object-put img-cobj '=location@iiif iiif)
  40         (with-temp-buffer
  41           (call-process
  42            "curl" nil (current-buffer) nil
  43            "--silent"
  44            (concat iiif "/info.json"))
  45           (goto-char (point-min))
  46           (when (re-search-forward
  47                  "^[ \t]*\"width\"[ \t]*:[ \t]*\\([0-9]+\\)" nil t)
  48             (concord-object-put img-cobj 'image-width
  49                                 (string-to-int (match-string 1))))
  50           (when (re-search-forward
  51                  "^[ \t]*\"height\"[ \t]*:[ \t]*\\([0-9]+\\)" nil t)
  52             (concord-object-put img-cobj 'image-height
  53                                 (string-to-int (match-string 1))))
  54           ))
  55       (when iip
  56         (concord-object-put img-cobj '=location@iip iip))
  57       )
  58     img-cobj))
  59
  60 (defun concord-images-add-iiif (url &optional base)
  61   (let (img-id img-cobj)
  62     (unless (setq img-cobj (concord-decode-object '=location url
  63                                                   'image-resource))
  64       (setq img-id (intern (concord-images-encode-url-as-id url base)))
  65       (setq img-cobj (concord-make-object 'image-resource img-id))
  66       (concord-object-put img-cobj '=location@iiif url))
  67     img-cobj))
  68
  69 (defun concord-images-add-segments (base-cobj x y width height)
  70   (let ((base-id (concord-object-get base-cobj '=id))
  71         base-width base-width-f base-height-f
  72         base-iiif-url
  73         seg-id seg-iiif-url seg-cobj
  74         base-iip-url
  75         rel-x rel-y rel-w rel-h)
  76     (setq seg-id (intern (format "%s/xywh=%d,%d,%d,%d"
  77                                  base-id
  78                                  x y width height)))
  79     (unless (setq seg-cobj (concord-decode-object '=id seg-id
  80                                                   'image-resource))
  81       (setq seg-cobj (concord-make-object 'image-resource seg-id))
  82       (setq base-iiif-url (concord-object-get base-cobj '=location@iiif))
  83       (concord-object-put seg-cobj '=location
  84                           (format "%s#xywh=%d,%d,%d,%d"
  85                                   (concord-object-get base-cobj '=location)
  86                                   x y width height))
  87       (concord-object-put seg-cobj 'image-offset-x x)
  88       (concord-object-put seg-cobj 'image-offset-y y)
  89       (concord-object-put seg-cobj 'image-width width)
  90       (concord-object-put seg-cobj 'image-height height)
  91       (setq seg-iiif-url (format "%s/%d,%d,%d,%d/full/0/default.jpg"
  92                                  base-iiif-url x y width height))
  93       (concord-object-put seg-cobj '=location@iiif seg-iiif-url)
  94       (when (setq base-iip-url (concord-object-get base-cobj '=location@iip))
  95         (setq base-width (concord-object-get base-cobj 'image-width)
  96               base-width-f (float base-width)
  97               base-height-f (float
  98                              (concord-object-get base-cobj 'image-height)))
  99         (setq rel-x (/ x base-width-f)
 100               rel-y (/ y base-height-f)
 101               rel-w (/ width base-width-f)
 102               rel-h (/ height base-height-f))
 103         (if (string-match "&CVT=jpeg" base-iip-url)
 104             (setq base-iip-url (substring base-iip-url 0 (match-beginning 0))))
 105         (concord-object-put
 106          seg-cobj '=location@iip
 107          (format "%s&RGN=%f,%f,%f,%f&WID=%d&CVT=jpeg"
 108                  base-iip-url rel-x rel-y rel-w rel-h width)))
 109       (concord-object-adjoin* seg-cobj '<-image-segment base-cobj)
 110       )
 111     seg-cobj))
 112
 113 (provide 'concord-images)