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 1.42 2003/05/14 08:30:38 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")
163 (defmacro write-simple (v s)
166 (write-string (write-to-string ,v) ,s)))
168 (defun write-ho-value (obj name type formatter cdata strm)
169 (declare (ignorable type))
170 (let* ((slot-data (slot-value obj name))
171 (fmt-data (if formatter
172 (funcall formatter slot-data)
175 (kmrcl:xml-cdata fmt-data)
177 (write-simple data strm)))
180 (defun ppfc-html (title name type formatter cdata print-func)
181 (vector-push-extend '(write-string "<span class=\"" s) print-func)
182 (vector-push-extend `(write-string ,title s) print-func)
183 (vector-push-extend '(write-string "\">" s) print-func)
184 (vector-push-extend `(write-ho-value x ',name ',type ',formatter ,cdata s) print-func)
185 (vector-push-extend '(write-string "</span>" s) print-func))
187 (defun ppfc-xml (tag name type formatter cdata print-func)
188 (vector-push-extend '(write-char #\< s) print-func)
189 (vector-push-extend `(write-string ,tag s) print-func)
190 (vector-push-extend '(write-char #\> s) print-func)
191 (vector-push-extend `(write-ho-value x ',name ',type ',formatter ,cdata s) print-func)
192 (vector-push-extend '(write-string "</" s) print-func)
193 (vector-push-extend `(write-string ,tag s) print-func)
194 (vector-push-extend '(write-char #\> s) print-func))
196 (defun ppfc-html-labels (label name type formatter cdata print-func)
197 (vector-push-extend '(write-string "<span class=\"label\">" s) print-func)
198 (vector-push-extend `(write-string ,label s) print-func)
199 (vector-push-extend '(write-string "</span> " s) print-func)
200 (ppfc-html label name type formatter cdata print-func))
202 (defun ppfc-xhtml-labels (label tag name type formatter cdata print-func)
203 (vector-push-extend '(write-string "<span class=\"label\">" s) print-func)
204 (vector-push-extend `(write-string ,label s) print-func)
205 (vector-push-extend '(write-string "</span> " s) print-func)
206 (ppfc-html tag name type formatter cdata print-func))
208 (defun ppfc-xml-labels (label tag name type formatter cdata print-func)
209 (vector-push-extend '(write-string "<label>" s) print-func)
210 (vector-push-extend `(write-string ,label s) print-func)
211 (vector-push-extend '(write-string "</label> " s) print-func)
212 (ppfc-xml tag name type formatter cdata print-func))
214 (defun ppfc-html-link (name type formatter cdata nlink print-func)
215 (declare (fixnum nlink))
216 (vector-push-extend '(write-char #\< s) print-func)
217 (vector-push-extend `(write-string (nth ,(+ nlink nlink) links) s) print-func)
218 (vector-push-extend '(write-char #\> s) print-func)
219 (vector-push-extend `(write-ho-value x ',name ',type ',formatter ,cdata s) print-func)
220 (vector-push-extend '(write-string "</" s) print-func)
221 (vector-push-extend `(write-string (nth ,(+ nlink nlink 1) links) s) print-func)
222 (vector-push-extend '(write-char #\> s) print-func))
224 (defun ppfc-html-link-labels (label name type formatter cdata nlink print-func)
225 (vector-push-extend '(write-string "<label>" s) print-func)
226 (vector-push-extend `(write-string ,label s) print-func)
227 (vector-push-extend '(write-string "</label> " s) print-func)
228 (ppfc-html-link name type formatter cdata nlink print-func))
230 (defun push-print-fun-code (category slot nlink print-func)
231 (let* ((formatter (esd-print-formatter slot))
232 (name (slot-definition-name slot))
233 (namestr-lower (string-downcase (symbol-name name)))
234 (xml-namestr (escape-xml-string namestr-lower))
235 (xml-tag (escape-xml-string namestr-lower))
236 (type (slot-value slot 'type))
238 (and (in category :xml :xhtml :xml-link :xhtml-link
239 :xml-labels :ie-xml-labels
240 :xhtml-link-labels :xml-link-labels :ie-xml-link
243 (lisp-type-is-a-string type))))))
244 (hyperlink (esd-hyperlink slot)))
249 `(write-ho-value x ',name ',type ',formatter ,cdata s) print-func))
250 (:compact-text-labels
251 (vector-push-extend `(write-string ,namestr-lower s) print-func)
252 (vector-push-extend '(write-char #\space s) print-func)
254 `(write-ho-value x ',name ',type ',formatter ,cdata s) print-func))
256 (ppfc-html namestr-lower name type formatter cdata print-func))
258 (ppfc-xml xml-tag name type formatter cdata print-func))
260 (ppfc-html-labels namestr-lower name type formatter cdata print-func))
262 (ppfc-xhtml-labels xml-namestr namestr-lower name type formatter cdata print-func))
264 (ppfc-xml-labels xml-namestr xml-tag name type formatter cdata print-func))
265 ((or :html-link :xhtml-link)
267 (ppfc-html-link name type formatter cdata nlink print-func)
268 (ppfc-html namestr-lower name type formatter cdata print-func)))
269 ((or :xml-link :ie-xml-link)
271 (ppfc-html-link name type formatter cdata nlink print-func)
272 (ppfc-xml xml-tag name type formatter cdata print-func)))
275 (ppfc-html-link-labels namestr-lower name type formatter cdata nlink
277 (ppfc-html-labels namestr-lower name type formatter cdata print-func)))
280 (ppfc-html-link-labels xml-namestr name type formatter cdata nlink
282 (ppfc-xhtml-labels xml-tag namestr-lower name type formatter cdata
284 ((or :xml-link-labels :ie-xml-link-labels)
286 (ppfc-html-link-labels xml-namestr name type formatter cdata nlink
288 (ppfc-xml-labels xml-tag namestr-lower name type formatter cdata
292 (defun view-has-links-p (view)
293 (in (category view) :html-link :xhtml-link :xml-link :ie-xml-link
294 :html-link-labels :xhtml-link-labels :xml-link-labels
295 :ie-xml-link-labels))
297 (defun initialize-view-by-category (obj-cl view)
298 "Initialize a view based upon a preset category"
299 (unless (in (category view) :compact-text :compact-text-labels
300 :html :html-labels :html-link-labels
301 :xhtml :xhtml-labels :xhtml-link-labels
302 :xhtml-link :html-link
303 :xml :xml-labels :xml-link :ie-xml-link
304 :xml-link-labels :ie-xml-link-labels)
305 (error "Unknown view category ~A" (category view)))
307 (unless (slots view) (setf (slots view) (default-print-slots obj-cl)))
310 (print-func (make-array 10 :fill-pointer 0 :adjustable t)))
312 (do* ((slots (slots view) (cdr slots))
313 (slot-name (car slots) (car slots))
314 (slot (find-slot-by-name obj-cl slot-name)
315 (find-slot-by-name obj-cl slot-name)))
318 (error "Slot ~A is not found in class ~S" slot-name obj-cl))
320 (push-print-fun-code (category view) slot (length links) print-func)
321 (when (> (length slots) 1)
322 (vector-push-extend '(write-char #\space s) print-func))
324 (when (and (view-has-links-p view) (esd-hyperlink slot))
325 (push (slot-definition-name slot) links)))
327 (when (plusp (length print-func))
328 (setf (obj-data-print-code view) `(lambda (x s links)
329 (declare (ignorable links))
330 ,@(map 'list #'identity print-func)))
331 (setf (obj-data-func view)
332 (compile nil (eval (obj-data-print-code view)))))
334 (setf (link-slots view) (nreverse links)))
336 (finalize-view-by-category view)
339 (defun finalize-view-by-category (view)
340 (case (category view)
341 ((or :compact-text :compact-text-labels)
342 (initialize-text-view view))
343 ((or :html :xhtml :html-labels :xhtml-labels)
344 (initialize-html-view view))
345 ((or :xml :xml-labels)
346 (initialize-xml-view view))
347 ((or :html-link :html-link-labels)
348 (initialize-html-view view)
349 (setf (link-href-start view) "a href=")
350 (setf (link-href-end view) "a")
351 (setf (link-ampersand view) "&"))
352 ((or :xhtml-link :xhtml-link-labels)
353 (initialize-html-view view)
354 (setf (link-href-start view) "a href=")
355 (setf (link-href-end view) "a")
356 (setf (link-ampersand view) "&"))
357 ((or :xml-link :xml-link-labels)
358 (initialize-xml-view view)
359 (setf (link-href-start view)
360 "xmllink xlink:type=\"simple\" xlink:href=")
361 (setf (link-href-end view) "xmllink")
362 (setf (link-ampersand view) "&"))
363 ((or :ie-xml-link :ie-xml-link-labels)
364 (initialize-xml-view view)
365 (setf (link-href-start view) "html:a href=")
366 (setf (link-href-end view) "html:a")
367 (setf (link-ampersand view) "&"))))
370 (defun initialize-view-by-category (obj-cl view)
371 "Initialize a view based upon a preset category"
376 (category (category view)))
378 (unless (in category :compact-text :compact-text-labels
379 :html :html-labels :html-link-labels
380 :xhtml :xhtml-labels :xhtml-link-labels
381 :xml :xml-labels :xml-link :ie-xml-link
382 :xml-link-labels :ie-xml-link-labels)
383 (error "Unknown view category ~A" category))
386 (setf (slots view) (default-print-slots obj-cl)))
387 (dolist (slot-name (slots view))
388 (let ((slot (find-slot-by-name obj-cl slot-name)))
390 (error "Slot ~A is not found in class ~S" slot-name obj-cl))
391 (let* ((name (slot-definition-name slot))
392 (namestr-lower (string-downcase (symbol-name name)))
393 (xml-namestr (escape-xml-string namestr-lower))
394 (xml-tag (escape-xml-string namestr-lower))
395 (type (slot-value slot 'type))
396 (print-formatter (esd-print-formatter slot)))
401 (setq first-field nil))
403 (string-append fmtstr " ")))
407 ((or :integer :fixnum)
415 (string-append fmtstr value-fmt))
416 (:compact-text-labels
417 (string-append fmtstr namestr-lower " " value-fmt))
419 (string-append fmtstr (concatenate 'string "<span class=\"" namestr-lower "\">" value-fmt "</span>")))
421 (string-append fmtstr (concatenate 'string "<" namestr-lower ">" value-fmt "</" namestr-lower ">")))
423 (string-append fmtstr (concatenate 'string "<span class=\"label\">" namestr-lower "</span> <span class=\"" namestr-lower "\">" value-fmt "</span>")))
425 (string-append fmtstr (concatenate 'string "<span class=\"label\">" xml-namestr "</span> <span class=\"" namestr-lower "\">" value-fmt "</span>")))
427 (string-append fmtstr (concatenate 'string "<label>" xml-namestr "</label> <" xml-tag ">" value-fmt "</" xml-tag ">")))
428 ((or :html-link :xhtml-link)
430 (if (esd-hyperlink slot)
431 (string-append fmtstr "<~~a>" value-fmt "</~~a>")
432 (string-append fmtstr (concatenate 'string "<span class=\"" namestr-lower "\">" value-fmt "</span>"))))
433 ((or :xml-link :ie-xml-link)
435 (if (esd-hyperlink slot)
436 (string-append fmtstr "<~~a>" value-fmt "</~~a>")
437 (string-append fmtstr (concatenate 'string "<" xml-tag ">" value-fmt "</" xml-tag ">"))))
440 (if (esd-hyperlink slot)
441 (string-append fmtstr "<span class=\"label\">" namestr-lower "</span> <~~a>" value-fmt "</~~a>")
442 (string-append fmtstr (concatenate 'string "<span class=\"label\">" namestr-lower "</span> <span class=\"" namestr-lower "\">" value-fmt "</span>"))))
445 (if (esd-hyperlink slot)
446 (string-append fmtstr "<span class=\"label\">" xml-namestr "</span> <~~a>" value-fmt "</~~a>")
447 (string-append fmtstr (concatenate 'string "<span class=\"label\">" xml-namestr "</span> <span class=\"" namestr-lower "\">" value-fmt "</span>"))))
448 ((or :xml-link-labels :ie-xml-link-labels)
450 (if (esd-hyperlink slot)
451 (string-append fmtstr "<label>" xml-namestr "</label> <~~a>" value-fmt "</~~a>")
452 (string-append fmtstr (concatenate 'string "<label>" xml-namestr "</label> <" xml-tag ">" value-fmt "</" xml-tag ">")))))
455 (let ((func (if print-formatter
456 `(,print-formatter (slot-value x (quote ,name)))
457 `(slot-value x (quote ,name)))))
458 (when (and (in category :xml :xhtml :xml-link :xhtml-link
459 :xml-labels :ie-xml-labels
460 :xhtml-link-labels :xml-link-labels :ie-xml-link
463 (lisp-type-is-a-string type)))
464 (setq func `(kmrcl:xml-cdata ,func)))
465 (push func value-func))
470 (compile nil (eval `(lambda (x) (values ,@(nreverse value-func)))))))
472 (setf (obj-data-fmtstr view) fmtstr)
473 (setf (obj-data-value-func view) value-func)
474 (setf (link-slots view) (nreverse links))
477 ((or :compact-text :compact-text-labels)
478 (initialize-text-view view))
479 ((or :html :xhtml :html-labels :xhtml-labels)
480 (initialize-html-view view))
481 ((or :xml :xml-labels)
482 (initialize-xml-view view))
483 ((or :html-link :html-link-labels)
484 (initialize-html-view view)
485 (setf (link-href-start view) "a href=")
486 (setf (link-href-end view) "a")
487 (setf (link-ampersand view) "&"))
488 ((or :xhtml-link :xhtml-link-labels)
489 (initialize-html-view view)
490 (setf (link-href-start view) "a href=")
491 (setf (link-href-end view) "a")
492 (setf (link-ampersand view) "&"))
493 ((or :xml-link :xml-link-labels)
494 (initialize-xml-view view)
495 (setf (link-href-start view)
496 "xmllink xlink:type=\"simple\" xlink:href=")
497 (setf (link-href-end view) "xmllink")
498 (setf (link-ampersand view) "&"))
499 ((or :ie-xml-link :ie-xml-link-labels)
500 (initialize-xml-view view)
501 (setf (link-href-start view) "html:a href=")
502 (setf (link-href-end view) "html:a")
503 (setf (link-ampersand view) "&"))))
507 ;;;; *************************************************************************
508 ;;;; View Data Format Section
509 ;;;; *************************************************************************
511 (defun class-name-of (obj)
512 (string-downcase (class-name (class-of obj))))
514 (defvar +newline-string+ (format nil "~%"))
516 (defun write-user-name-maybe-plural (obj nitems strm)
519 (hyperobject-class-user-name-plural obj)
520 (hyperobject-class-user-name obj))
523 (defun initialize-text-view (view)
524 (setf (list-start-str-or-func view)
526 (eval '(lambda (obj nitems strm)
527 (write-user-name-maybe-plural obj nitems strm)
528 (write-char #\: strm)
529 (write-char #\Newline strm)))))
530 (setf (list-start-indent view) t)
531 (setf (obj-data-indent view) t)
532 (setf (obj-data-end-str view) +newline-string+))
534 (defun html-list-start-func (obj nitems strm)
535 (write-string "<p><b>" strm)
536 (write-user-name-maybe-plural obj nitems strm)
537 (write-string ":</b></p><div class=\"" strm)
538 (write-string (class-name-of obj) strm)
539 (write-string "\"><ul>" strm)
540 (write-char #\newline strm))
542 (defun initialize-html-view (view)
543 (initialize-text-view view)
544 (setf (file-start-str view) (format nil "<html><body>~%"))
545 (setf (file-end-str view) (format nil "</body><html>~%"))
546 (setf (list-start-indent view) t)
547 (setf (list-start-str-or-func view) #'html-list-start-func)
548 (setf (list-end-str-or-func view) (format nil "</ul></div>~%"))
549 (setf (list-end-indent view) t)
550 (setf (obj-start-indent view) t)
551 (setf (obj-start-str-or-func view) "<li>")
552 (setf (obj-end-indent view) t)
553 (setf (obj-end-str-or-func view) (format nil "</li>~%"))
554 (setf (obj-data-indent view) nil))
556 (defun initialize-xhtml-view (view)
557 (initialize-text-view view)
558 (setf (file-start-str view) (format nil "<html><body>~%"))
559 (setf (file-end-str view) (format nil "</body><html>~%"))
560 (setf (list-start-indent view) t)
561 (setf (list-start-str-or-func view) #'html-list-start-func)
562 (setf (list-end-str-or-func view) (format nil "</ul></div>~%"))
563 (setf (list-end-indent view) t)
564 (setf (obj-start-indent view) t)
565 (setf (obj-start-str-or-func view) "<li>")
566 (setf (obj-end-indent view) t)
567 (setf (obj-end-str-or-func view) (format nil "</li>~%"))
568 (setf (obj-data-indent view) nil))
570 (defun xmlformat-list-end-func (x strm)
571 (write-string "</" strm)
572 (write-string (class-name-of x) strm)
573 (write-string "list" strm)
574 (write-string ">" strm)
575 (write-char #\newline strm))
577 (defun xmlformat-list-start-func (x nitems strm)
578 (write-char #\< strm)
579 (write-string (class-name-of x) strm)
580 (write-string "list><title>" strm)
581 (write-user-name-maybe-plural x nitems strm)
582 (write-string ":</title>" strm)
583 (write-char #\newline strm))
585 (defun initialize-xml-view (view)
586 (initialize-text-view view)
587 (setf (file-start-str view) "") ; (std-xml-header)
588 (setf (list-start-indent view) t)
589 (setf (list-start-str-or-func view) #'xmlformat-list-start-func)
590 (setf (list-end-indent view) t)
591 (setf (list-end-str-or-func view) #'xmlformat-list-end-func)
592 (setf (obj-start-str-or-func view) (format nil "<~(~a~)>" (object-class-name view)))
593 (setf (obj-start-indent view) t)
594 (setf (obj-end-str-or-func view) (format nil "</~(~a~)>~%" (object-class-name view)))
595 (setf (obj-end-indent view) nil)
596 (setf (obj-data-indent view) nil))
599 ;;; File Start and Ends
601 (defun fmt-file-start (view strm)
602 (awhen (file-start-str view)
603 (write-string it strm)))
605 (defun fmt-file-end (view strm)
606 (awhen (file-end-str view)
607 (write-string it strm)))
609 ;;; List Start and Ends
611 (defun fmt-list-start (obj view strm indent num-items)
612 (when (list-start-indent view)
613 (indent-spaces indent strm))
614 (awhen (list-start-str-or-func view)
616 (write-string it strm)
617 (funcall it obj num-items strm))))
619 (defun fmt-list-end (obj view strm indent num-items)
620 (declare (ignore num-items))
621 (when (list-end-indent view)
622 (indent-spaces indent strm))
623 (awhen (list-end-str-or-func view)
625 (write-string it strm)
626 (funcall it obj strm))))
628 ;;; Object Start and Ends
630 (defun fmt-obj-start (obj view strm indent)
631 (when (obj-start-indent view)
632 (indent-spaces indent strm))
633 (awhen (obj-start-str-or-func view)
635 (write-string it strm)
636 (funcall it obj strm))))
638 (defun fmt-obj-end (obj view strm indent)
639 (when (obj-end-indent view)
640 (indent-spaces indent strm))
641 (awhen (obj-end-str-or-func view)
643 (write-string it strm)
644 (funcall it obj strm))))
649 (defun make-link-start (view fieldfunc fieldvalue refvars)
650 (with-output-to-string (s)
651 (write-string (link-href-start view) s)
653 (write-string (make-url (link-page-name view)) s)
654 (write-string "?func=" s)
655 (write-simple fieldfunc s)
656 (write-string (link-ampersand view) s)
657 (write-string "key=" s)
658 (write-simple fieldvalue s)
659 (dolist (var refvars)
660 (write-string (link-ampersand view) s)
661 (write-simple (car var) s)
663 (write-simple (cdr var) s))
666 (defun make-link-end (obj view fieldname)
667 (declare (ignore obj fieldname))
668 (link-href-end view))
670 (defun fmt-obj-data (obj view strm indent refvars)
671 (when (obj-data-indent view)
672 (indent-spaces indent strm))
673 (if (link-slots view)
674 (fmt-obj-data-with-link obj view strm refvars)
675 (fmt-obj-data-plain obj view strm))
676 (awhen (obj-data-end-str view)
677 (write-string it strm)))
679 (defun fmt-obj-data-plain (obj view strm)
680 (awhen (obj-data-func view)
681 (funcall it obj strm nil)))
683 (defun fmt-obj-data-with-link (obj view strm refvars)
684 (let ((refvalues '()))
685 ;; make list of hyperlink link fields for printing to refstr template
686 (dolist (name (link-slots view))
687 (awhen (find name (hyperobject-class-hyperlinks obj) :key #'name)
688 (push (make-link-start view (lookup it) (slot-value obj name)
689 (append (link-parameters it) refvars))
691 (push (make-link-end obj view name) refvalues)))
692 (funcall (obj-data-func view) obj strm (nreverse refvalues))))
694 (defun obj-data (obj view)
695 "Returns the objects data as a string. Used by common-graphics outline function"
696 (with-output-to-string (s) (fmt-obj-data-plain obj view s)))
698 ;;; Display method for objects
701 (defun load-all-subobjects (objs)
702 "Load all subobjects if they have not already been loaded."
703 (dolist (obj (mklist objs))
704 (dolist (subobj (hyperobject-class-subobjects obj))
705 (awhen (slot-value obj (name-slot subobj))
706 (load-all-subobjects it))))
709 (defun view-hyperobject (objs view category strm &optional (indent 0) filter
711 "Display a single or list of hyperobject-class instances and their subobjects"
712 (declare (fixnum indent))
713 (let-when (objlist (mklist objs))
714 (let ((nobjs (length objlist))
718 (*print-readably* nil)
721 (fmt-list-start (car objlist) view strm indent nobjs)
722 (dolist (obj objlist)
723 (unless (and filter (not (funcall filter obj)))
724 (fmt-obj-start obj view strm indent)
725 (fmt-obj-data obj view strm (1+ indent) refvars)
726 (when (and subobjects (hyperobject-class-subobjects obj))
727 (dolist (subobj (hyperobject-class-subobjects obj))
728 (aif (slot-value obj (name-slot subobj))
729 (view-hyperobject it (get-category-view (car (mklist it)) category)
730 category strm (1+ indent) filter
731 subobjects refvars))))
732 (fmt-obj-end obj view strm indent)))
733 (fmt-list-end (car objlist) view strm indent nobjs)))
737 (defun view (objs &key (stream *standard-output*) category view
738 filter subobjects refvars file-wrapper)
739 "EXPORTED Function: prints hyperobject-class objects. Simplies call to view-hyperobject"
740 (let-when (objlist (mklist objs))
742 (setq view (get-category-view (car objlist) category)))
744 (setq view (default-view (class-of (car objlist)))))
746 (fmt-file-start view stream))
747 (view-hyperobject objlist view category stream 0 filter subobjects refvars)
749 (fmt-file-end view stream)))
755 (defun fmt-comma-integer (i)
756 (format nil "~:d" i))