1 ;;;; -*- Mode: Lisp; Syntax: ANSI-Common-Lisp; Base: 10 -*-
2 ;;;; *************************************************************************
3 ;;;; FILE IDENTIFICATION
6 ;;;; Purpose: View methods for Hyperobjects
7 ;;;; Programmer: Kevin M. Rosenberg
8 ;;;; Date Started: Apr 2000
10 ;;;; $Id: views.lisp,v 1.40 2003/05/14 07:00:47 kevin Exp $
12 ;;;; This file is Copyright (c) 2000-2003 by Kevin M. Rosenberg
13 ;;;; *************************************************************************
15 (in-package :hyperobject)
17 (eval-when (:compile-toplevel :execute)
18 (declaim (optimize (speed 2) (safety 2) (compilation-speed 0) (debug 2))))
21 (defclass object-view ()
22 ((object-class-name :initform nil :initarg :object-class-name
23 :accessor object-class-name
24 :documentation "Name of class of object to be viewed.")
25 (object-class :initform nil :initarg :object-class
26 :accessor object-class
27 :documentation "Class of object to be viewed.")
28 (slots :initform nil :initarg :slots :accessor slots
29 :documentation "List of effective slots for object to be viewed.")
30 (name :initform nil :initarg :name :accessor name
31 :documentation "Name for this view.")
32 (category :initform nil :initarg :category :accessor category
33 :documentation "Category for view. Helpful when want to find a view corresponding to a particular category.")
34 (source-code :initform nil :initarg :source-code :accessor source-code
35 :documentation "Source code for generating view.")
36 (country-language :initform :en :initarg :country-language
37 :documentation "Country's Language for this view.")
39 (file-start-str :type (or string null) :initform nil :initarg :file-start-str
40 :accessor file-start-str)
41 (file-end-str :type (or string null) :initform nil :initarg :file-end-str
42 :accessor file-end-str)
43 (list-start-str-or-func :type (or string function null) :initform nil
44 :initarg :list-start-str-or-func
45 :accessor list-start-str-or-func)
46 (list-start-indent :initform nil :initarg :list-start-indent
47 :accessor list-start-indent)
48 (list-end-str-or-func :type (or string function null) :initform nil
49 :initarg :list-end-str-or-func
50 :accessor list-end-str-or-func)
51 (list-end-indent :initform nil :initarg :list-end-indent
52 :accessor list-end-indent)
53 (obj-start-str-or-func :type (or string function null) :initform nil :initarg :obj-start-str-or-func
54 :accessor obj-start-str-or-func)
55 (obj-start-indent :initform nil :initarg :obj-start-indent
56 :accessor obj-start-indent)
57 (obj-end-str-or-func :type (or string function null) :initform nil :initarg :obj-end-str-or-func
58 :accessor obj-end-str-or-func)
59 (obj-end-indent :initform nil :initarg :obj-end-indent
60 :accessor obj-end-indent)
61 (obj-data-indent :initform nil :initarg :obj-data-indent
62 :accessor obj-data-indent)
63 (obj-data-func :type (or function null) :initform nil
64 :initarg :obj-data-func
65 :accessor obj-data-func)
66 (obj-data-print-code :type (or function null) :initform nil
67 :initarg :obj-data-print-code
68 :accessor obj-data-print-code)
69 (obj-data-end-str :type (or string null) :initform nil
70 :initarg :obj-data-end-str
71 :accessor obj-data-end-str)
72 (link-slots :type list :initform nil
73 :documentation "List of slot names that have hyperlinks"
75 (link-page-name :type (or string null) :initform nil :initarg :link-page-name
76 :accessor link-page-name)
77 (link-href-start :type (or string null) :initform nil :initarg :link-href-start
78 :accessor link-href-start)
79 (link-href-end :type (or string null) :initform nil :initarg :link-href-end
80 :accessor link-href-end)
81 (link-ampersand :type (or string null) :initform nil :initarg :link-ampersand
82 :accessor link-ampersand))
83 (:default-initargs :link-page-name "disp-func1")
84 (:documentation "View class for a hyperobject"))
87 (defun get-category-view (obj category &optional slots)
88 "Find or make a category view for an object"
89 (let ((obj-class (class-of obj)))
91 (default-view obj-class)
92 (aif (find category (views obj-class) :key #'category)
95 (make-instance 'object-view
96 :object-class-name (class-name obj-class)
97 :object-class obj-class
100 (push view (views obj-class))
103 ;;;; *************************************************************************
104 ;;;; Metaclass Intialization
105 ;;;; *************************************************************************
107 (defun finalize-views (cl)
108 "Finalize all views that are given on a objects initialization"
109 (unless (default-print-slots cl)
110 (setf (default-print-slots cl)
111 (mapcar #'slot-definition-name (class-slots cl))))
113 (dolist (view-def (views cl))
114 (push (make-object-view cl view-def) views))
115 (setf (views cl) (nreverse views)))
118 (setf (default-view cl) (make-object-view cl (default-view cl))))
120 (setf (default-view cl) (make-object-view cl (car (views cl)))))
122 (setf (default-view cl) (make-object-view cl :default)))))
124 (defun make-object-view (cl view-def)
125 "Make an object view from a definition. Do nothing if a class is passed so that reinitialization will be a no-op"
127 ((typep view-def 'object-view)
129 ((eq view-def :default)
130 (let* ((name (class-name cl))
131 (view (make-instance 'object-view :name "automatic"
132 :object-class-name name
134 :category :compact-text)))
137 (eval `(make-instance ,view-def)))
139 (error "Invalid parameter to make-object-view: ~S" view-def))))
141 (defmethod initialize-instance :after ((view object-view)
142 &rest initargs &key &allow-other-keys)
143 (initialize-view (object-class view) view))
145 (defun initialize-view (obj-cl view)
146 "Calculate all view slots for a hyperobject class"
149 (initialize-view-by-category obj-cl view))
151 (initialize-view-by-source-code obj-cl view))
153 (setf (category view) :compact-text)
154 (initialize-view-by-category obj-cl view))))
156 (defun initialize-view-by-source-code (obj-cl view)
157 "Initialize a view based upon a source code"
158 (let ((source-code (source-code view)))
159 (error "not implemented")
164 (defun write-ho-value (obj name type formatter cdata strm)
165 (declare (ignorable type))
166 (let* ((slot-data (slot-value obj name))
167 (fmt-data (if formatter
168 (funcall formatter slot-data)
171 (kmrcl:xml-cdata fmt-data)
175 (write-string data strm))
177 (write-string (write-to-string data) strm)))))
179 (defun ppfc-html (title name type formatter cdata print-func)
180 (vector-push-extend '(write-string "<span class=\"" s) print-func)
181 (vector-push-extend `(write-string ,title s) print-func)
182 (vector-push-extend '(write-string "\">" s) print-func)
183 (vector-push-extend `(write-ho-value x ',name ',type ',formatter ,cdata s) print-func)
184 (vector-push-extend '(write-string "</span>" s) print-func))
186 (defun ppfc-xml (tag name type formatter cdata print-func)
187 (vector-push-extend '(write-char #\< s) print-func)
188 (vector-push-extend `(write-string ,tag s) print-func)
189 (vector-push-extend '(write-char #\> s) print-func)
190 (vector-push-extend `(write-ho-value x ',name ',type ',formatter ,cdata s) print-func)
191 (vector-push-extend '(write-string "</" s) print-func)
192 (vector-push-extend `(write-string ,tag s) print-func)
193 (vector-push-extend '(write-char #\> s) print-func))
195 (defun ppfc-html-labels (label name type formatter cdata print-func)
196 (vector-push-extend '(write-string "<span class=\"label\">" s) print-func)
197 (vector-push-extend `(write-string ,label s) print-func)
198 (vector-push-extend '(write-string "</span> " s) print-func)
199 (ppfc-html label name type formatter cdata print-func))
201 (defun ppfc-xhtml-labels (label tag name type formatter cdata print-func)
202 (vector-push-extend '(write-string "<span class=\"label\">" s) print-func)
203 (vector-push-extend `(write-string ,label s) print-func)
204 (vector-push-extend '(write-string "</span> " s) print-func)
205 (ppfc-html tag name type formatter cdata print-func))
207 (defun ppfc-xml-labels (label tag name type formatter cdata print-func)
208 (vector-push-extend '(write-string "<label>" s) print-func)
209 (vector-push-extend `(write-string ,label s) print-func)
210 (vector-push-extend '(write-string "</label> " s) print-func)
211 (ppfc-xml tag name type formatter cdata print-func))
213 (defun ppfc-html-link (name type formatter cdata nlink print-func)
214 (declare (fixnum nlink))
215 (vector-push-extend '(write-char #\< s) print-func)
216 (vector-push-extend `(write-string (nth ,(+ nlink nlink) links) s) print-func)
217 (vector-push-extend '(write-char #\> s) print-func)
218 (vector-push-extend `(write-ho-value x ',name ',type ',formatter ,cdata s) print-func)
219 (vector-push-extend '(write-string "</" s) print-func)
220 (vector-push-extend `(write-string (nth ,(+ nlink nlink 1) links) s) print-func)
221 (vector-push-extend '(write-char #\> s) print-func))
223 (defun ppfc-html-link-labels (label name type formatter cdata nlink print-func)
224 (vector-push-extend '(write-string "<label>" s) print-func)
225 (vector-push-extend `(write-string ,label s) print-func)
226 (vector-push-extend '(write-string "</label> " s) print-func)
227 (ppfc-html-link name type formatter cdata nlink print-func))
229 (defun push-print-fun-code (category slot nlink print-func)
230 (let* ((formatter (esd-print-formatter slot))
231 (name (slot-definition-name slot))
232 (namestr-lower (string-downcase (symbol-name name)))
233 (xml-namestr (escape-xml-string namestr-lower))
234 (xml-tag (escape-xml-string namestr-lower))
235 (type (slot-value slot 'type))
237 (and (in category :xml :xhtml :xml-link :xhtml-link
238 :xml-labels :ie-xml-labels
239 :xhtml-link-labels :xml-link-labels :ie-xml-link
242 (lisp-type-is-a-string type))))))
243 (hyperlink (esd-hyperlink slot)))
248 `(write-ho-value x ',name ',type ',formatter ,cdata s) print-func))
249 (:compact-text-labels
250 (vector-push-extend `(write-string ,namestr-lower s) print-func)
251 (vector-push-extend '(write-char #\space s) print-func)
253 `(write-ho-value x ',name ',type ',formatter ,cdata s) print-func))
255 (ppfc-html namestr-lower name type formatter cdata print-func))
257 (ppfc-xml xml-tag name type formatter cdata print-func))
259 (ppfc-html-labels namestr-lower name type formatter cdata print-func))
261 (ppfc-xhtml-labels xml-namestr namestr-lower name type formatter cdata print-func))
263 (ppfc-xml-labels xml-namestr xml-tag name type formatter cdata print-func))
264 ((or :html-link :xhtml-link)
266 (ppfc-html-link name type formatter cdata nlink print-func)
267 (ppfc-html namestr-lower name type formatter cdata print-func)))
268 ((or :xml-link :ie-xml-link)
270 (ppfc-html-link name type formatter cdata nlink print-func)
271 (ppfc-xml xml-tag name type formatter cdata print-func)))
274 (ppfc-html-labels namestr-lower name type formatter cdata print-func)))
277 (ppfc-html-link-labels xml-namestr name type formatter cdata nlink
279 (ppfc-xhtml-labels xml-tag namestr-lower name type formatter cdata
281 ((or :xml-link-labels :ie-xml-link-labels)
283 (ppfc-html-link-labels xml-namestr name type formatter cdata nlink
285 (ppfc-xml-labels xml-tag namestr-lower name type formatter cdata
289 (defun view-has-links-p (view)
290 (in (category view) :html-link :xhtml-link :xml-link :ie-xml-link
291 :html-link-labels :xhtml-links-labels :xml-link-labels
292 :ie-xml-link-labels))
294 (defun initialize-view-by-category (obj-cl view)
295 "Initialize a view based upon a preset category"
296 (unless (in (category view) :compact-text :compact-text-labels
297 :html :html-labels :html-link-labels
298 :xhtml :xhtml-labels :xhtml-link-labels
299 :xml :xml-labels :xml-link :ie-xml-link
300 :xml-link-labels :ie-xml-link-labels)
301 (error "Unknown view category ~A" (category view)))
303 (unless (slots view) (setf (slots view) (default-print-slots obj-cl)))
306 (print-func (make-array 10 :fill-pointer 0 :adjustable t)))
308 (do* ((slots (slots view) (cdr slots))
309 (slot-name (car slots) (car slots))
310 (slot (find-slot-by-name obj-cl slot-name)
311 (find-slot-by-name obj-cl slot-name)))
314 (error "Slot ~A is not found in class ~S" slot-name obj-cl))
316 (push-print-fun-code (category view) slot (length links) print-func)
317 (when (> (length slots) 1)
318 (vector-push-extend '(write-char #\space s) print-func))
320 (when (and (view-has-links-p view) (esd-hyperlink slot))
321 (push (slot-definition-name slot) links)))
323 (when (plusp (length print-func))
324 (setf (obj-data-print-code view) `(lambda (x s links)
325 (declare (ignorable links))
326 ,@(map 'list #'identity print-func)))
327 (setf (obj-data-func view)
328 (compile nil (eval (obj-data-print-code view)))))
330 (setf (link-slots view) (nreverse links)))
332 (finalize-view-by-category view)
335 (defun finalize-view-by-category (view)
336 (case (category view)
337 ((or :compact-text :compact-text-labels)
338 (initialize-text-view view))
339 ((or :html :xhtml :html-labels :xhtml-labels)
340 (initialize-html-view view))
341 ((or :xml :xml-labels)
342 (initialize-xml-view view))
343 ((or :html-link :html-link-labels)
344 (initialize-html-view view)
345 (setf (link-href-start view) "a href=")
346 (setf (link-href-end view) "a")
347 (setf (link-ampersand view) "&"))
348 ((or :xhtml-link :xhtml-link-labels)
349 (initialize-html-view view)
350 (setf (link-href-start view) "a href=")
351 (setf (link-href-end view) "a")
352 (setf (link-ampersand view) "&"))
353 ((or :xml-link :xml-link-labels)
354 (initialize-xml-view view)
355 (setf (link-href-start view)
356 "xmllink xlink:type=\"simple\" xlink:href=")
357 (setf (link-href-end view) "xmllink")
358 (setf (link-ampersand view) "&"))
359 ((or :ie-xml-link :ie-xml-link-labels)
360 (initialize-xml-view view)
361 (setf (link-href-start view) "html:a href=")
362 (setf (link-href-end view) "html:a")
363 (setf (link-ampersand view) "&"))))
366 (defun initialize-view-by-category (obj-cl view)
367 "Initialize a view based upon a preset category"
372 (category (category view)))
374 (unless (in category :compact-text :compact-text-labels
375 :html :html-labels :html-link-labels
376 :xhtml :xhtml-labels :xhtml-link-labels
377 :xml :xml-labels :xml-link :ie-xml-link
378 :xml-link-labels :ie-xml-link-labels)
379 (error "Unknown view category ~A" category))
382 (setf (slots view) (default-print-slots obj-cl)))
383 (dolist (slot-name (slots view))
384 (let ((slot (find-slot-by-name obj-cl slot-name)))
386 (error "Slot ~A is not found in class ~S" slot-name obj-cl))
387 (let* ((name (slot-definition-name slot))
388 (namestr-lower (string-downcase (symbol-name name)))
389 (xml-namestr (escape-xml-string namestr-lower))
390 (xml-tag (escape-xml-string namestr-lower))
391 (type (slot-value slot 'type))
392 (print-formatter (esd-print-formatter slot)))
397 (setq first-field nil))
399 (string-append fmtstr " ")))
403 ((or :integer :fixnum)
411 (string-append fmtstr value-fmt))
412 (:compact-text-labels
413 (string-append fmtstr namestr-lower " " value-fmt))
415 (string-append fmtstr (concatenate 'string "<span class=\"" namestr-lower "\">" value-fmt "</span>")))
417 (string-append fmtstr (concatenate 'string "<" namestr-lower ">" value-fmt "</" namestr-lower ">")))
419 (string-append fmtstr (concatenate 'string "<span class=\"label\">" namestr-lower "</span> <span class=\"" namestr-lower "\">" value-fmt "</span>")))
421 (string-append fmtstr (concatenate 'string "<span class=\"label\">" xml-namestr "</span> <span class=\"" namestr-lower "\">" value-fmt "</span>")))
423 (string-append fmtstr (concatenate 'string "<label>" xml-namestr "</label> <" xml-tag ">" value-fmt "</" xml-tag ">")))
424 ((or :html-link :xhtml-link)
426 (if (esd-hyperlink slot)
427 (string-append fmtstr "<~~a>" value-fmt "</~~a>")
428 (string-append fmtstr (concatenate 'string "<span class=\"" namestr-lower "\">" value-fmt "</span>"))))
429 ((or :xml-link :ie-xml-link)
431 (if (esd-hyperlink slot)
432 (string-append fmtstr "<~~a>" value-fmt "</~~a>")
433 (string-append fmtstr (concatenate 'string "<" xml-tag ">" value-fmt "</" xml-tag ">"))))
436 (if (esd-hyperlink slot)
437 (string-append fmtstr "<span class=\"label\">" namestr-lower "</span> <~~a>" value-fmt "</~~a>")
438 (string-append fmtstr (concatenate 'string "<span class=\"label\">" namestr-lower "</span> <span class=\"" namestr-lower "\">" value-fmt "</span>"))))
441 (if (esd-hyperlink slot)
442 (string-append fmtstr "<span class=\"label\">" xml-namestr "</span> <~~a>" value-fmt "</~~a>")
443 (string-append fmtstr (concatenate 'string "<span class=\"label\">" xml-namestr "</span> <span class=\"" namestr-lower "\">" value-fmt "</span>"))))
444 ((or :xml-link-labels :ie-xml-link-labels)
446 (if (esd-hyperlink slot)
447 (string-append fmtstr "<label>" xml-namestr "</label> <~~a>" value-fmt "</~~a>")
448 (string-append fmtstr (concatenate 'string "<label>" xml-namestr "</label> <" xml-tag ">" value-fmt "</" xml-tag ">")))))
451 (let ((func (if print-formatter
452 `(,print-formatter (slot-value x (quote ,name)))
453 `(slot-value x (quote ,name)))))
454 (when (and (in category :xml :xhtml :xml-link :xhtml-link
455 :xml-labels :ie-xml-labels
456 :xhtml-link-labels :xml-link-labels :ie-xml-link
459 (lisp-type-is-a-string type)))
460 (setq func `(kmrcl:xml-cdata ,func)))
461 (push func value-func))
466 (compile nil (eval `(lambda (x) (values ,@(nreverse value-func)))))))
468 (setf (obj-data-fmtstr view) fmtstr)
469 (setf (obj-data-value-func view) value-func)
470 (setf (link-slots view) (nreverse links))
473 ((or :compact-text :compact-text-labels)
474 (initialize-text-view view))
475 ((or :html :xhtml :html-labels :xhtml-labels)
476 (initialize-html-view view))
477 ((or :xml :xml-labels)
478 (initialize-xml-view view))
479 ((or :html-link :html-link-labels)
480 (initialize-html-view view)
481 (setf (link-href-start view) "a href=")
482 (setf (link-href-end view) "a")
483 (setf (link-ampersand view) "&"))
484 ((or :xhtml-link :xhtml-link-labels)
485 (initialize-html-view view)
486 (setf (link-href-start view) "a href=")
487 (setf (link-href-end view) "a")
488 (setf (link-ampersand view) "&"))
489 ((or :xml-link :xml-link-labels)
490 (initialize-xml-view view)
491 (setf (link-href-start view)
492 "xmllink xlink:type=\"simple\" xlink:href=")
493 (setf (link-href-end view) "xmllink")
494 (setf (link-ampersand view) "&"))
495 ((or :ie-xml-link :ie-xml-link-labels)
496 (initialize-xml-view view)
497 (setf (link-href-start view) "html:a href=")
498 (setf (link-href-end view) "html:a")
499 (setf (link-ampersand view) "&"))))
503 ;;;; *************************************************************************
504 ;;;; View Data Format Section
505 ;;;; *************************************************************************
507 (defun class-name-of (obj)
508 (string-downcase (class-name (class-of obj))))
510 (defvar +newline-string+ (format nil "~%"))
512 (defun write-user-name-maybe-plural (obj nitems strm)
515 (hyperobject-class-user-name-plural obj)
516 (hyperobject-class-user-name obj))
519 (defun initialize-text-view (view)
520 (setf (list-start-str-or-func view)
522 (eval '(lambda (obj nitems strm)
523 (write-user-name-maybe-plural obj nitems strm)
524 (write-char #\: strm)
525 (write-char #\Newline strm)))))
526 (setf (list-start-indent view) t)
527 (setf (obj-data-indent view) t)
528 (setf (obj-data-end-str view) +newline-string+))
530 (defun html-list-start-func (obj nitems strm)
531 (write-string "<p><b>" strm)
532 (write-user-name-maybe-plural obj nitems strm)
533 (write-string ":</b></p><div class=\"" strm)
534 (write-string (class-name-of obj) strm)
535 (write-string "\"><ul>" strm)
536 (write-char #\newline strm))
538 (defun initialize-html-view (view)
539 (initialize-text-view view)
540 (setf (file-start-str view) (format nil "<html><body>~%"))
541 (setf (file-end-str view) (format nil "</body><html>~%"))
542 (setf (list-start-indent view) t)
543 (setf (list-start-str-or-func view) #'html-list-start-func)
544 (setf (list-end-str-or-func view) (format nil "</ul></div>~%"))
545 (setf (list-end-indent view) t)
546 (setf (obj-start-indent view) t)
547 (setf (obj-start-str-or-func view) "<li>")
548 (setf (obj-end-indent view) t)
549 (setf (obj-end-str-or-func view) (format nil "</li>~%"))
550 (setf (obj-data-indent view) t))
552 (defun initialize-xhtml-view (view)
553 (initialize-text-view view)
554 (setf (file-start-str view) (format nil "<html><body>~%"))
555 (setf (file-end-str view) (format nil "</body><html>~%"))
556 (setf (list-start-indent view) t)
557 (setf (list-start-str-or-func view) #'html-list-start-func)
558 (setf (list-end-str-or-func view) (format nil "</ul></div>~%"))
559 (setf (list-end-indent view) t)
560 (setf (obj-start-indent view) t)
561 (setf (obj-start-str-or-func view) "<li>")
562 (setf (obj-end-indent view) t)
563 (setf (obj-end-str-or-func view) (format nil "</li>~%"))
564 (setf (obj-data-indent view) t))
566 (defun xmlformat-list-end-func (x strm)
567 (write-string "</" strm)
568 (write-string (class-name-of x) strm)
569 (write-string "list" strm)
570 (write-string ">" strm)
571 (write-char #\newline strm))
573 (defun xmlformat-list-start-func (x nitems strm)
574 (write-char #\< strm)
575 (write-string (class-name-of x) strm)
576 (write-string "list><title>" strm)
577 (write-user-name-maybe-plural x nitems strm)
578 (write-string ":</title>" strm)
579 (write-char #\newline strm))
581 (defun initialize-xml-view (view)
582 (initialize-text-view view)
583 (setf (file-start-str view) "") ; (std-xml-header)
584 (setf (list-start-indent view) t)
585 (setf (list-start-str-or-func view) #'xmlformat-list-start-func)
586 (setf (list-end-indent view) t)
587 (setf (list-end-str-or-func view) #'xmlformat-list-end-func)
588 (setf (obj-start-str-or-func view) (format nil "<~(~a~)>" (object-class-name view)))
589 (setf (obj-start-indent view) t)
590 (setf (obj-end-str-or-func view) (format nil "</~(~a~)>~%" (object-class-name view)))
591 (setf (obj-end-indent view) nil)
592 (setf (obj-data-indent view) nil))
595 ;;; File Start and Ends
597 (defun fmt-file-start (view strm)
598 (awhen (file-start-str view)
599 (write-string it strm)))
601 (defun fmt-file-end (view strm)
602 (awhen (file-end-str view)
603 (write-string it strm)))
605 ;;; List Start and Ends
607 (defun fmt-list-start (obj view strm indent num-items)
608 (when (list-start-indent view)
609 (indent-spaces indent strm))
610 (awhen (list-start-str-or-func view)
612 (write-string it strm)
613 (funcall it obj num-items strm))))
615 (defun fmt-list-end (obj view strm indent num-items)
616 (declare (ignore num-items))
617 (when (list-end-indent view)
618 (indent-spaces indent strm))
619 (awhen (list-end-str-or-func view)
621 (write-string it strm)
622 (funcall it obj strm))))
624 ;;; Object Start and Ends
626 (defun fmt-obj-start (obj view strm indent)
627 (when (obj-start-indent view)
628 (indent-spaces indent strm))
629 (awhen (obj-start-str-or-func view)
631 (write-string it strm)
632 (funcall it obj strm))))
634 (defun fmt-obj-end (obj view strm indent)
635 (when (obj-end-indent view)
636 (indent-spaces indent strm))
637 (awhen (obj-end-str-or-func view)
639 (write-string it strm)
640 (funcall it obj strm))))
644 (defun make-link-start (view fieldfunc fieldvalue refvars)
645 (with-output-to-string (s)
646 (write-string (link-href-start view) s)
648 (write-string (make-url (link-page-name view)) s)
649 (write-string "?func=" s)
650 (write-string fieldfunc s)
651 (write-string (link-ampersand view) s)
652 (write-string "key=" s)
653 (write-string fieldvalue s)
654 (dolist (var refvars)
655 (write-string (link-ampersand view) s)
656 (write-string (car var) s)
658 (write-string (cdr var) s))
661 (defun make-link-end (obj view fieldname)
662 (declare (ignore obj fieldname))
663 (link-href-end view))
665 (defun fmt-obj-data (obj view strm indent refvars)
666 (when (obj-data-indent view)
667 (indent-spaces indent strm))
668 (if (link-slots view)
669 (fmt-obj-data-with-link obj view strm refvars)
670 (fmt-obj-data-plain obj view strm))
671 (awhen (obj-data-end-str view)
672 (write-string it strm)))
674 (defun fmt-obj-data-plain (obj view strm)
675 (awhen (obj-data-func view)
676 (funcall it obj strm nil)))
678 (defun fmt-obj-data-with-link (obj view strm refvars)
679 (let ((refvalues '()))
680 ;; make list of hyperlink link fields for printing to refstr template
681 (dolist (name (link-slots view))
682 (awhen (find name (hyperobject-class-hyperlinks obj) :key #'name)
683 (push (make-link-start view (lookup it) (slot-value obj name)
684 (append (link-parameters it) refvars))
686 (push (make-link-end obj view name) refvalues)))
687 (funcall (obj-data-func view) obj strm (nreverse refvalues))))
689 (defun obj-data (obj view)
690 "Returns the objects data as a string. Used by common-graphics outline function"
691 (with-output-to-string (s) (fmt-obj-data-plain obj view s)))
693 ;;; Display method for objects
696 (defun load-all-subobjects (objs)
697 "Load all subobjects if they have not already been loaded."
698 (dolist (obj (mklist objs))
699 (dolist (subobj (hyperobject-class-subobjects obj))
700 (awhen (slot-value obj (name-slot subobj))
701 (load-all-subobjects it))))
704 (defun view-hyperobject (objs view category strm &optional (indent 0) filter
706 "Display a single or list of hyperobject-class instances and their subobjects"
707 (declare (fixnum indent))
708 (let-when (objlist (mklist objs))
709 (let ((nobjs (length objlist))
713 (*print-readably* nil)
716 (fmt-list-start (car objlist) view strm indent nobjs)
717 (dolist (obj objlist)
718 (unless (and filter (not (funcall filter obj)))
719 (fmt-obj-start obj view strm indent)
720 (fmt-obj-data obj view strm (1+ indent) refvars)
721 (when (and subobjects (hyperobject-class-subobjects obj))
722 (dolist (subobj (hyperobject-class-subobjects obj))
723 (aif (slot-value obj (name-slot subobj))
724 (view-hyperobject it (get-category-view (car (mklist it)) category)
725 category strm (1+ indent) filter
726 subobjects refvars))))
727 (fmt-obj-end obj view strm indent)))
728 (fmt-list-end (car objlist) view strm indent nobjs)))
732 (defun view (objs &key (stream *standard-output*) category view
733 filter subobjects refvars file-wrapper)
734 "EXPORTED Function: prints hyperobject-class objects. Simplies call to view-hyperobject"
735 (let-when (objlist (mklist objs))
737 (setq view (get-category-view (car objlist) category)))
739 (setq view (default-view (class-of (car objlist)))))
741 (fmt-file-start view stream))
742 (view-hyperobject objlist view category stream 0 filter subobjects refvars)
744 (fmt-file-end view stream)))
750 (defun fmt-comma-integer (i)
751 (format nil "~:d" i))