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 1.32 2003/05/13 23:10:44 kevin Exp $
12 ;;;; This file is Copyright (c) 2000-2002 by Kevin M. Rosenberg
14 ;;;; *************************************************************************
16 (in-package :hyperobject)
18 (eval-when (:compile-toplevel :execute)
19 (declaim (optimize (speed 2) (safety 2) (compilation-speed 0) (debug 2))))
22 (defclass object-view ()
23 ((object-class-name :initform nil :initarg :object-class-name
24 :accessor object-class-name
25 :documentation "Name of class of object to be viewed.")
26 (object-class :initform nil :initarg :object-class
27 :accessor object-class
28 :documentation "Class of object to be viewed.")
29 (slots :initform nil :initarg :slots :accessor slots
30 :documentation "List of effective slots for object to be viewed.")
31 (name :initform nil :initarg :name :accessor name
32 :documentation "Name for this view.")
33 (category :initform nil :initarg :category :accessor category
34 :documentation "Category for view. Helpful when want to find a view corresponding to a particular category.")
35 (source-code :initform nil :initarg :source-code :accessor source-code
36 :documentation "Source code for generating view.")
37 (country-language :initform :en :initarg :country-language
38 :documentation "Country's Language for this view.")
40 (file-start-str :type (or string null) :initform nil :initarg :file-start-str
41 :accessor file-start-str)
42 (file-end-str :type (or string null) :initform nil :initarg :file-end-str
43 :accessor file-end-str)
44 (list-start-str-or-func :type (or string function null) :initform nil
45 :initarg :list-start-str-or-func
46 :accessor list-start-str-or-func)
47 (list-start-indent :initform nil :initarg :list-start-indent
48 :accessor list-start-indent)
49 (list-end-str-or-func :type (or string function null) :initform nil
50 :initarg :list-end-str-or-func
51 :accessor list-end-str-or-func)
52 (list-end-indent :initform nil :initarg :list-end-indent
53 :accessor list-end-indent)
54 (obj-start-str-or-func :type (or string function null) :initform nil :initarg :obj-start-str-or-func
55 :accessor obj-start-str-or-func)
56 (obj-start-indent :initform nil :initarg :obj-start-indent
57 :accessor obj-start-indent)
58 (obj-end-str-or-func :type (or string function null) :initform nil :initarg :obj-end-str-or-func
59 :accessor obj-end-str-or-func)
60 (obj-end-indent :initform nil :initarg :obj-end-indent
61 :accessor obj-end-indent)
62 (obj-data-indent :initform nil :initarg :obj-data-indent
63 :accessor obj-data-indent)
64 (obj-data-fmtstr :type (or string null) :initform nil :initarg :obj-data-fmtstr
65 :accessor obj-data-fmtstr)
66 (obj-data-value-func :type (or function symbol null) :initform nil
67 :initarg :obj-data-value-func
68 :accessor obj-data-value-func)
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 initialize-view-by-category (obj-cl view)
165 "Initialize a view based upon a preset category"
170 (category (category view)))
172 (unless (in category :compact-text :compact-text-labels
173 :html :html-labels :html-link-labels
174 :xhtml :xhtml-labels :xhtml-link-labels
175 :xml :xml-labels :xml-link :ie-xml-link
176 :xml-link-labels :ie-xml-link-labels)
177 (error "Unknown view category ~A" category))
180 (setf (slots view) (default-print-slots obj-cl)))
181 (dolist (slot-name (slots view))
182 (let ((slot (find-slot-by-name obj-cl slot-name)))
184 (error "Slot ~A is not found in class ~S" slot-name obj-cl))
185 (let* ((name (slot-definition-name slot))
186 (namestr-lower (string-downcase (symbol-name name)))
187 (xml-namestr (escape-xml-string namestr-lower))
188 (xml-tag (escape-xml-string namestr-lower))
189 (type (slot-value slot 'type))
190 (print-formatter (esd-print-formatter slot)))
195 (setq first-field nil))
197 (string-append fmtstr " ")))
201 ((or :integer :fixnum)
209 (string-append fmtstr value-fmt))
210 (:compact-text-labels
211 (string-append fmtstr namestr-lower " " value-fmt))
213 (string-append fmtstr (concatenate 'string "<span class=\"" namestr-lower "\">" value-fmt "</span>")))
215 (string-append fmtstr (concatenate 'string "<" namestr-lower ">" value-fmt "</" namestr-lower ">")))
217 (string-append fmtstr (concatenate 'string "<span class=\"label\">" namestr-lower "</span> <span class=\"" namestr-lower "\">" value-fmt "</span>")))
219 (string-append fmtstr (concatenate 'string "<span class=\"label\">" xml-namestr "</span> <span class=\"" namestr-lower "\">" value-fmt "</span>")))
221 (string-append fmtstr (concatenate 'string "<label>" xml-namestr "</label> <" xml-tag ">" value-fmt "</" xml-tag ">")))
222 ((or :html-link :xhtml-link)
224 (if (esd-hyperlink slot)
225 (string-append fmtstr "<~~a>" value-fmt "</~~a>")
226 (string-append fmtstr (concatenate 'string "<span class=\"" namestr-lower "\">" value-fmt "</span>"))))
227 ((or :xml-link :ie-xml-link)
229 (if (esd-hyperlink slot)
230 (string-append fmtstr "<~~a>" value-fmt "</~~a>")
231 (string-append fmtstr (concatenate 'string "<" xml-tag ">" value-fmt "</" xml-tag ">"))))
234 (if (esd-hyperlink slot)
235 (string-append fmtstr "<span class=\"label\">" namestr-lower "</span> <~~a>" value-fmt "</~~a>")
236 (string-append fmtstr (concatenate 'string "<span class=\"label\">" namestr-lower "</span> <span class=\"" namestr-lower "\">" value-fmt "</span>"))))
239 (if (esd-hyperlink slot)
240 (string-append fmtstr "<span class=\"label\">" xml-namestr "</span> <~~a>" value-fmt "</~~a>")
241 (string-append fmtstr (concatenate 'string "<span class=\"label\">" xml-namestr "</span> <span class=\"" namestr-lower "\">" value-fmt "</span>"))))
242 ((or :xml-link-labels :ie-xml-link-labels)
244 (if (esd-hyperlink slot)
245 (string-append fmtstr "<label>" xml-namestr "</label> <~~a>" value-fmt "</~~a>")
246 (string-append fmtstr (concatenate 'string "<label>" xml-namestr "</label> <" xml-tag ">" value-fmt "</" xml-tag ">")))))
249 (let ((func (if print-formatter
250 `(,print-formatter (slot-value x (quote ,name)))
251 `(slot-value x (quote ,name)))))
252 (when (and (in category :xml :xhtml :xml-link :xhtml-link
253 :xml-labels :ie-xml-labels
254 :xhtml-link-labels :xml-link-labels :ie-xml-link
257 (lisp-type-is-a-string type)))
258 (setq func `(kmrcl:xml-cdata ,func)))
259 (push func value-func))
264 (compile nil (eval `(lambda (x) (values ,@(nreverse value-func)))))))
266 (setf (obj-data-fmtstr view) fmtstr)
267 (setf (obj-data-value-func view) value-func)
268 (setf (link-slots view) (nreverse links))
271 ((or :compact-text :compact-text-labels)
272 (initialize-text-view view))
273 ((or :html :xhtml :html-labels :xhtml-labels)
274 (initialize-html-view view))
275 ((or :xml :xml-labels)
276 (initialize-xml-view view))
277 ((or :html-link :html-link-labels)
278 (initialize-html-view view)
279 (setf (link-href-start view) "a href=")
280 (setf (link-href-end view) "a")
281 (setf (link-ampersand view) "&"))
282 ((or :xhtml-link :xhtml-link-labels)
283 (initialize-html-view view)
284 (setf (link-href-start view) "a href=")
285 (setf (link-href-end view) "a")
286 (setf (link-ampersand view) "&"))
287 ((or :xml-link :xml-link-labels)
288 (initialize-xml-view view)
289 (setf (link-href-start view)
290 "xmllink xlink:type=\"simple\" xlink:href=")
291 (setf (link-href-end view) "xmllink")
292 (setf (link-ampersand view) "&"))
293 ((or :ie-xml-link :ie-xml-link-labels)
294 (initialize-xml-view view)
295 (setf (link-href-start view) "html:a href=")
296 (setf (link-href-end view) "html:a")
297 (setf (link-ampersand view) "&"))))
301 ;;;; *************************************************************************
302 ;;;; View Data Format Section
303 ;;;; *************************************************************************
305 (defun class-name-of (obj)
306 (string-downcase (class-name (class-of obj))))
308 (defvar +newline-string+ (format nil "~%"))
310 (defun initialize-text-view (view)
311 (setf (list-start-str-or-func view)
313 #'(lambda (obj nitems strm)
314 (format strm "~a~P:~%"
315 (hyperobject-class-user-name obj) nitems))))
316 (setf (list-start-indent view) t)
317 (setf (obj-data-indent view) t)
318 (setf (obj-data-end-str view) +newline-string+))
320 (defun html-list-start-func (obj nitems strm)
321 (format strm "<p><b>~a~p:</b></p><div class=\""
322 (hyperobject-class-user-name obj) nitems)
323 (write-string (class-name-of obj))
324 (write-string "\"><ul>~%" strm))
326 (defun initialize-html-view (view)
327 (initialize-text-view view)
328 (setf (file-start-str view) (format nil "<html><body>~%"))
329 (setf (file-end-str view) (format nil "</body><html>~%"))
330 (setf (list-start-indent view) t)
331 (setf (list-start-str-or-func view) #'html-list-start-func)
332 (setf (list-end-str-or-func view) (format nil "</ul></div>~%"))
333 (setf (list-end-indent view) t)
334 (setf (obj-start-indent view) t)
335 (setf (obj-start-str-or-func view) "<li>")
336 (setf (obj-end-indent view) t)
337 (setf (obj-end-str-or-func view) (format nil "</li>~%"))
338 (setf (obj-data-indent view) t))
340 (defun initialize-xhtml-view (view)
341 (initialize-text-view view)
342 (setf (file-start-str view) (format nil "<html><body>~%"))
343 (setf (file-end-str view) (format nil "</body><html>~%"))
344 (setf (list-start-indent view) t)
345 (setf (list-start-str-or-func view) #'html-list-start-func)
346 (setf (list-end-str-or-func view) (format nil "</ul></div>~%"))
347 (setf (list-end-indent view) t)
348 (setf (obj-start-indent view) t)
349 (setf (obj-start-str-or-func view) "<li>")
350 (setf (obj-end-indent view) t)
351 (setf (obj-end-str-or-func view) (format nil "</li>~%"))
352 (setf (obj-data-indent view) t))
354 (defun xmlformat-list-end-func (x strm)
355 (write-string "</" strm)
356 (write-string (class-name-of x) strm)
357 (write-string "list" strm)
358 (write-string ">" strm)
359 (write-char #\newline strm))
361 (defun xmlformat-list-start-func (x nitems strm)
362 (write-char #\< strm)
363 (write-string (class-name-of x) strm)
364 (write-string "list><title>" strm)
365 (format strm "~A~P:</title> ~%"
366 (hyperobject-class-user-name x) nitems))
368 (defun initialize-xml-view (view)
369 (initialize-text-view view)
370 (setf (file-start-str view) "") ; (std-xml-header)
371 (setf (list-start-indent view) t)
372 (setf (list-start-str-or-func view) #'xmlformat-list-start-func)
373 (setf (list-end-indent view) t)
374 (setf (list-end-str-or-func view) #'xmlformat-list-end-func)
375 (setf (obj-start-str-or-func view) (format nil "<~(~a~)>" (object-class-name view)))
376 (setf (obj-start-indent view) t)
377 (setf (obj-end-str-or-func view) (format nil "</~(~a~)>~%" (object-class-name view)))
378 (setf (obj-end-indent view) nil)
379 (setf (obj-data-indent view) nil))
382 ;;; File Start and Ends
384 (defun fmt-file-start (view strm)
385 (awhen (file-start-str view)
386 (write-string it strm)))
388 (defun fmt-file-end (view strm)
389 (awhen (file-end-str view)
390 (write-string it strm)))
392 ;;; List Start and Ends
394 (defun fmt-list-start (obj view strm indent num-items)
395 (when (list-start-indent view)
396 (indent-spaces indent strm))
397 (awhen (list-start-str-or-func view)
399 (write-string it strm)
400 (funcall it obj num-items strm))))
402 (defun fmt-list-end (obj view strm indent num-items)
403 (declare (ignore num-items))
404 (when (list-end-indent view)
405 (indent-spaces indent strm))
406 (awhen (list-end-str-or-func view)
408 (write-string it strm)
409 (funcall it obj strm))))
411 ;;; Object Start and Ends
413 (defun fmt-obj-start (obj view strm indent)
414 (when (obj-start-indent view)
415 (indent-spaces indent strm))
416 (awhen (obj-start-str-or-func view)
418 (write-string it strm)
419 (funcall it obj strm))))
421 (defun fmt-obj-end (obj view strm indent)
422 (when (obj-end-indent view)
423 (indent-spaces indent strm))
424 (awhen (obj-end-str-or-func view)
426 (write-string it strm)
427 (funcall it obj strm))))
431 (defun make-link-start (view fieldfunc fieldvalue refvars)
432 (format nil "~a\"~a?func=~a~akey=~a~a\""
433 (link-href-start view)
434 (make-url (link-page-name view))
436 (link-ampersand view) fieldvalue
439 (dolist (var refvars)
441 varstr (link-ampersand view)
442 (format nil "~a=~a" (car var) (cadr var))))
446 (defun make-link-end (obj view fieldname)
447 (declare (ignore obj fieldname))
448 (link-href-end view))
450 (defun fmt-obj-data (obj view strm indent refvars)
451 (when (obj-data-indent view)
452 (indent-spaces indent strm))
453 (if (link-slots view)
454 (fmt-obj-data-with-link obj view strm refvars)
455 (fmt-obj-data-plain obj view strm))
456 (awhen (obj-data-end-str view)
457 (write-string it strm)))
459 (defun fmt-obj-data-plain (obj view strm)
460 (awhen (obj-data-value-func view)
461 (multiple-value-call #'format strm (obj-data-fmtstr view)
464 (defun fmt-obj-data-with-link (obj view strm refvars)
465 (let ((refvalues '()))
466 ;; make list of hyperlink link fields for printing to refstr template
467 (dolist (name (link-slots view))
469 (find name (hyperobject-class-hyperlinks obj) :key #'name))
470 (push (make-link-start view (lookup hyperlink) (slot-value obj name)
471 (append (link-parameters hyperlink) refvars))
473 (push (make-link-end obj view name) refvalues)))
474 (setq refvalues (nreverse refvalues))
475 (apply #'format strm (make-link-data-str obj view) refvalues)))
477 (defun obj-data (obj view)
478 "Returns the objects data as a string. Used by common-graphics outline function"
479 (awhen (obj-data-value-func view)
480 (multiple-value-call #'format nil (funcall (obj-data-fmtstr view))
483 (defun make-link-data-str (obj view)
484 "Return fmt string for that contains ~a slots for hyperlink link start and end"
485 (awhen (obj-data-value-func view)
486 (multiple-value-call #'format nil (obj-data-fmtstr view)
489 ;;; Display method for objects
492 (defun load-all-subobjects (objs)
493 "Load all subobjects if they have not already been loaded."
494 (dolist (obj (mklist objs))
495 (dolist (subobj (hyperobject-class-subobjects obj))
496 (awhen (slot-value obj (name-slot subobj))
497 (load-all-subobjects it))))
500 (defun view-hyperobject (objs view category strm &optional (indent 0) filter
502 "Display a single or list of hyperobject-class instances and their subobjects"
503 (let-when (objlist (mklist objs))
504 (let ((nobjs (length objlist))
508 (*print-readably* nil)
511 (fmt-list-start (car objlist) view strm indent nobjs)
512 (dolist (obj objlist)
513 (unless (and filter (not (funcall filter obj)))
514 (fmt-obj-start obj view strm indent)
515 (fmt-obj-data obj view strm (1+ indent) refvars)
516 (when (and subobjects (hyperobject-class-subobjects obj))
517 (dolist (subobj (hyperobject-class-subobjects obj))
518 (aif (slot-value obj (name-slot subobj))
519 (view-hyperobject it (get-category-view (car (mklist it)) category)
520 category strm (1+ indent) filter
521 subobjects refvars))))
522 (fmt-obj-end obj view strm indent)))
523 (fmt-list-end (car objlist) view strm indent nobjs)))
527 (defun view (objs &key (stream *standard-output*) category view
528 filter subobjects refvars file-wrapper)
529 "EXPORTED Function: prints hyperobject-class objects. Simplies call to view-hyperobject"
530 (let-when (objlist (mklist objs))
532 (setq view (get-category-view (car objlist) category)))
534 (setq view (default-view (class-of (car objlist)))))
536 (fmt-file-start view stream))
537 (view-hyperobject objlist view category stream 0 filter subobjects refvars)
539 (fmt-file-end view stream)))
545 (defun fmt-comma-integer (i)
546 (format nil "~:d" i))