;;;; -*- Mode: Lisp; Syntax: ANSI-Common-Lisp; Base: 10 -*-
;;;; *************************************************************************
;;;; FILE IDENTIFICATION
;;;;
;;;; Name: views.lisp
;;;; Purpose: View methods for Hyperobjects
;;;; Author: Kevin M. Rosenberg
;;;; Created: Apr 2000
;;;;
;;;; $Id$
;;;;
;;;; This file is Copyright (c) 2000-2004 by Kevin M. Rosenberg
;;;; *************************************************************************
(in-package #:hyperobject)
(defclass object-view ()
((object-class :initform nil :initarg :object-class
:accessor object-class
:documentation "Class of object to be viewed.")
(slots :initform nil :initarg :slots :accessor slots
:documentation "List of effective slots for object to be viewed.")
(id :initform nil :initarg :id :accessor id
:documentation "id for this view.")
(source-code :initform nil :initarg :source-code :accessor source-code
:documentation "Source code for generating view.")
(country-language :initform :en :initarg :country-language
:documentation "Country's Language for this view.")
(printer :initform nil :initarg :printer :accessor printer
:documentation "default function that prints the object")
;;
(file-start-str :type (or string null) :initform nil :initarg :file-start-str
:accessor file-start-str)
(file-end-str :type (or string null) :initform nil :initarg :file-end-str
:accessor file-end-str)
(list-start-printer :type (or string function null) :initform nil
:initarg :list-start-printer
:accessor list-start-printer)
(list-start-indent :initform nil :initarg :list-start-indent
:accessor list-start-indent)
(list-end-printer :type (or string function null) :initform nil
:initarg :list-end-printer
:accessor list-end-printer)
(list-end-indent :initform nil :initarg :list-end-indent
:accessor list-end-indent)
(obj-start-printer :type (or string function null) :initform nil :initarg :obj-start-printer
:accessor obj-start-printer)
(obj-start-indent :initform nil :initarg :obj-start-indent
:accessor obj-start-indent)
(obj-end-printer :type (or string function null) :initform nil :initarg :obj-end-printer
:accessor obj-end-printer)
(obj-end-indent :initform nil :initarg :obj-end-indent
:accessor obj-end-indent)
(subobj-start-printer :type (or string function null) :initform nil :initarg :subobj-start-printer
:accessor subobj-start-printer)
(subobj-start-indent :initform nil :initarg :subobj-start-indent
:accessor subobj-start-indent)
(subobj-end-printer :type (or string function null) :initform nil :initarg :subobj-end-printer
:accessor subobj-end-printer)
(subobj-end-indent :initform nil :initarg :subobj-end-indent
:accessor subobj-end-indent)
(obj-data-indent :initform nil :initarg :obj-data-indent
:accessor obj-data-indent)
(obj-data-printer :type (or function null) :initform nil
:initarg :obj-data-printer
:accessor obj-data-printer)
(obj-data-print-code :type (or function list null) :initform nil
:initarg :obj-data-print-code
:accessor obj-data-print-code)
(obj-data-start-printer :type (or function string null) :initform nil
:initarg :obj-data-start-printer
:accessor obj-data-start-printer)
(obj-data-end-printer :type (or string null) :initform nil
:initarg :obj-data-end-printer
:accessor obj-data-end-printer)
(indenter :type (or function null) :initform nil
:accessor indenter
:documentation "Function that performs hierarchical indenting")
(link-slots :type list :initform nil
:documentation "List of slot names that have hyperlinks"
:accessor link-slots)
(link-page :type (or string null) :initform nil
:initarg :link-page
:accessor link-page)
(link-href-start :type (or string null) :initform nil :initarg :link-href-start
:accessor link-href-start)
(link-href-end :type (or string null) :initform nil :initarg :link-href-end
:accessor link-href-end)
(link-ampersand :type (or string null) :initform nil :initarg :link-ampersand
:accessor link-ampersand))
(:default-initargs :link-page "meta-search.html")
(:documentation "View class for a hyperobject"))
(defun get-default-view-id (obj-cl)
(aif (views obj-cl)
(id (car it))
:compact-text))
(defun find-view-id-in-class-precedence (obj-cl vid)
"Looks for a view in class and parent classes"
(when (typep obj-cl 'hyperobject-class)
(aif (find vid (views obj-cl) :key #'id :test #'eq)
it
(let (cpl)
(handler-case
(setq cpl (class-precedence-list obj-cl))
(error (e)
(declare (ignore e))
;; can't get cpl unless class finalized
(make-instance (class-name obj-cl))
(setq cpl (class-precedence-list obj-cl))))
(find-view-id-in-class-precedence (second cpl) vid)))))
(defun get-view-id (obj vid &optional slots)
"Find or make a category view for an object"
(let ((obj-cl (class-of obj)))
(unless vid
(setq vid (get-default-view-id obj-cl)))
(aif (find-view-id-in-class-precedence obj-cl vid)
it
(let ((view
(make-instance 'object-view
:object-class (class-name obj-cl)
:id vid
:slots slots)))
(push view (views obj-cl))
view))))
;;;; *************************************************************************
;;;; Metaclass Intialization
;;;; *************************************************************************
(defun finalize-views (cl)
"Finalize all views that are given on a objects initialization"
(unless (default-print-slots cl)
(setf (default-print-slots cl)
(mapcar #'slot-definition-name (class-slots cl))))
(setf (views cl)
(loop for view-def in (direct-views cl)
collect (make-object-view cl view-def))))
(defun make-object-view (cl view-def)
"Make an object view from a definition. Do nothing if a class is passed so that reinitialization will be a no-op"
(cond
((typep view-def 'object-view)
view-def)
((eq view-def :default)
(make-instance 'object-view
:object-class (class-name cl)
:id :compact-text))
((consp view-def)
(make-instance 'object-view
:object-class (class-name cl)
:id (getf view-def :id)
:slots (getf view-def :slots)
:source-code (getf view-def :source-code)))
(t
(error "Invalid parameter to make-object-view: ~S" view-def))))
(defmethod initialize-instance :after ((self object-view)
&rest initargs
&key
&allow-other-keys)
(declare (ignore initargs))
(initialize-view self))
(defun initialize-view (view)
"Calculate all view slots for a hyperobject class"
(let ((obj-cl (find-class (object-class view))))
(cond
((source-code view)
(initialize-view-by-source-code view))
((id view)
(initialize-view-by-id obj-cl view))
(t
(setf (id view) :compact-text)
(initialize-view-by-id obj-cl view)))))
(defun initialize-view-by-source-code (view)
"Initialize a view based upon a source code"
(let* ((source-code (source-code view))
(printer `(lambda
(,(intern (symbol-name '#:self)
(symbol-package (object-class view)))
,(intern (symbol-name '#:s)
(symbol-package (object-class view))))
(declare (ignorable
,(intern (symbol-name '#:self)
(symbol-package (object-class view)))
,(intern (symbol-name '#:s)
(symbol-package (object-class view)))))
(with-slots ,(slots view)
,(intern (symbol-name '#:self)
(symbol-package (object-class view)))
,@source-code))))
(setf (printer view)
(compile nil (eval printer)))))
(defmacro write-simple (v s)
`(typecase ,v
(string
(write-string ,v ,s))
(fixnum
(write-fixnum ,v ,s))
(symbol
(write-string (symbol-name ,v) ,s))
(t
(write-string (write-to-string ,v) ,s))))
(defun write-ho-value (obj name type formatter cdata strm)
(declare (ignorable type))
(let* ((slot-data (slot-value obj name))
(fmt-data (if formatter
(funcall formatter slot-data)
slot-data)))
(if cdata
(write-cdata fmt-data strm)
(write-simple fmt-data strm))))
(defun ppfc-html (title name type formatter cdata print-func)
(vector-push-extend '(write-string "" s) print-func)
(vector-push-extend `(write-ho-value x ',name ',type ',formatter ,cdata s) print-func)
(vector-push-extend '(write-string "" s) print-func))
(defun ppfc-xml (tag name type formatter cdata print-func)
(vector-push-extend '(write-char #\< s) print-func)
(vector-push-extend `(write-string ,tag s) print-func)
(vector-push-extend '(write-char #\> s) print-func)
(vector-push-extend `(write-ho-value x ',name ',type ',formatter ,cdata s) print-func)
(vector-push-extend '(write-string "" s) print-func)
(vector-push-extend `(write-string ,tag s) print-func)
(vector-push-extend '(write-char #\> s) print-func))
(defun ppfc-display-table (title name type formatter cdata print-func)
(vector-push-extend '(write-string "
" s) print-func)
(ppfc-html title name type formatter cdata print-func)
(vector-push-extend '(write-string " | " s) print-func))
(defun ppfc-html-labels (label name type formatter cdata print-func)
(vector-push-extend '(write-string "" s) print-func)
(vector-push-extend `(when (stringp ,label) (write-string ,label s)) print-func)
(vector-push-extend '(write-string " " s) print-func)
(ppfc-html label name type formatter cdata print-func))
(defun ppfc-xhtml-labels (label tag name type formatter cdata print-func)
(vector-push-extend '(write-string "" s) print-func)
(vector-push-extend `(when (stringp ,label) (write-string ,label s)) print-func)
(vector-push-extend '(write-string " " s) print-func)
(ppfc-html tag name type formatter cdata print-func))
(defun ppfc-xml-labels (label tag name type formatter cdata print-func)
(vector-push-extend '(write-string " " s) print-func)
(ppfc-xml tag name type formatter cdata print-func))
(defun ppfc-html-link (name type formatter cdata nlink print-func)
(declare (fixnum nlink))
(vector-push-extend '(write-char #\< s) print-func)
(vector-push-extend `(when (stringp (nth ,(+ nlink nlink) links))
(write-string (nth ,(+ nlink nlink) links) s)) print-func)
(vector-push-extend '(write-char #\> s) print-func)
(vector-push-extend `(write-ho-value x ',name ',type ',formatter ,cdata s) print-func)
(vector-push-extend '(write-string "" s) print-func)
(vector-push-extend `(when (stringp (nth ,(+ nlink nlink 1) links))
(write-string (nth ,(+ nlink nlink 1) links) s)) print-func)
(vector-push-extend '(write-char #\> s) print-func))
(defun ppfc-html-link-labels (label name type formatter cdata nlink print-func)
(vector-push-extend '(write-string "" s) print-func)
(vector-push-extend `(when (stringp ,label) (write-string ,label s)) print-func)
(vector-push-extend '(write-string " " s) print-func)
(ppfc-html-link name type formatter cdata nlink print-func))
(defun push-print-fun-code (vid slot nlink print-func)
(let* ((formatter (esd-print-formatter slot))
(name (slot-definition-name slot))
(user-name (esd-user-name slot))
(xml-user-name (escape-xml-string user-name))
(xml-tag (escape-xml-string user-name))
(value-type (slot-value slot 'value-type))
(cdata (and (in vid :xml :xhtml :xml-link :xhtml-link
:xml-labels :ie-xml-labels
:xhtml-link-labels :xml-link-labels :ie-xml-link
:ie-xml-link-labels)
(or formatter
(value-type-is-a-string value-type))
t))
(hyperlink (esd-hyperlink slot)))
(case vid
(:compact-text
(vector-push-extend
`(write-ho-value x ',name ',value-type ',formatter ,cdata s) print-func))
(:compact-text-labels
(vector-push-extend `(write-string ,user-name s) print-func)
(vector-push-extend '(write-char #\space s) print-func)
(vector-push-extend
`(write-ho-value x ',name ',value-type ',formatter ,cdata s) print-func))
((or :html :xhtml)
(ppfc-html user-name name value-type formatter cdata print-func))
(:xml
(ppfc-xml xml-tag name value-type formatter cdata print-func))
(:html-labels
(ppfc-html-labels user-name name value-type formatter cdata print-func))
(:xhtml-labels
(ppfc-xhtml-labels xml-user-name user-name name value-type formatter cdata print-func))
((:display-table :display-table-labels)
(ppfc-display-table user-name name value-type formatter cdata print-func))
(:xml-labels
(ppfc-xml-labels xml-user-name xml-tag name value-type formatter cdata print-func))
((or :html-link :xhtml-link)
(if hyperlink
(ppfc-html-link name value-type formatter cdata nlink print-func)
(ppfc-html user-name name value-type formatter cdata print-func)))
((or :xml-link :ie-xml-link)
(if hyperlink
(ppfc-html-link name value-type formatter cdata nlink print-func)
(ppfc-xml xml-tag name value-type formatter cdata print-func)))
(:html-link-labels
(if hyperlink
(ppfc-html-link-labels user-name name value-type formatter cdata nlink
print-func)
(ppfc-html-labels user-name name value-type formatter cdata print-func)))
(:xhtml-link-labels
(if hyperlink
(ppfc-html-link-labels xml-user-name name value-type formatter cdata nlink
print-func)
(ppfc-xhtml-labels xml-tag user-name name value-type formatter cdata
print-func)))
((or :xml-link-labels :ie-xml-link-labels)
(if hyperlink
(ppfc-html-link-labels xml-user-name name value-type formatter cdata nlink
print-func)
(ppfc-xml-labels xml-tag user-name name value-type formatter cdata
print-func))))))
(defun view-has-links-p (view)
(in (id view) :html-link :xhtml-link :xml-link :ie-xml-link
:html-link-labels :xhtml-link-labels :xml-link-labels
:ie-xml-link-labels))
(defun creatable-view-id-p (obj-cl vid)
"Returns T if a view id can be created for this class"
(declare (ignore obj-cl))
(in vid :compact-text :compact-text-labels
:html :html-labels :html-link-labels
:xhtml :xhtml-labels :xhtml-link-labels
:xhtml-link :html-link
:xml :xml-labels :xml-link :ie-xml-link
:xml-link-labels :ie-xml-link-labels
:display-table :display-table-labels :edit-table :edit-table-labels))
(defun initialize-view-by-id (obj-cl view)
"Initialize a view based upon a preset vid"
(unless (creatable-view-id-p obj-cl (id view))
(error "Unable to automatically create view id ~A" (id view)))
(unless (slots view) (setf (slots view) (default-print-slots obj-cl)))
(let ((links '())
(print-func (make-array 20 :fill-pointer 0 :adjustable t)))
(do* ((slots (slots view) (cdr slots))
(slot-name (car slots) (car slots))
(slot (find-slot-by-name obj-cl slot-name)
(find-slot-by-name obj-cl slot-name)))
((null slots))
(unless slot
(error "Slot ~A is not found in class ~S" slot-name obj-cl))
(push-print-fun-code (id view) slot (length links) print-func)
(when (> (length slots) 1)
(vector-push-extend '(write-char #\space s) print-func))
(when (and (view-has-links-p view) (esd-hyperlink slot))
(push (slot-definition-name slot) links)))
(vector-push-extend 'x print-func) ;; return object
(setf (obj-data-print-code view) `(lambda (x s links)
(declare (ignorable s links))
,@(map 'list #'identity print-func)))
(setf (obj-data-printer view)
(compile nil (eval (obj-data-print-code view))))
(setf (link-slots view) (nreverse links)))
(finalize-view-by-id view)
view)
(defun finalize-view-by-id (view)
(case (id view)
((or :compact-text :compact-text-labels)
(initialize-text-view view))
((or :html :html-labels)
(initialize-html-view view))
((or :xhtml :xhtml-labels)
(initialize-xhtml-view view))
((or :xml :xml-labels)
(initialize-xml-view view))
((or :html-link :html-link-labels)
(initialize-html-view view)
(setf (link-href-start view) "a href=")
(setf (link-href-end view) "a")
(setf (link-ampersand view) "&"))
((or :xhtml-link :xhtml-link-labels)
(initialize-xhtml-view view)
(setf (link-href-start view) "a href=")
(setf (link-href-end view) "a")
(setf (link-ampersand view) "&"))
((or :display-table :display-table-labels :edit-tables)
(initialize-table-view view)
(when (in (id view) :display-table-labels :edit-table-labels)
(setf (list-start-printer view) #'table-label-list-start-func))
(setf (link-href-start view) "a href=")
(setf (link-href-end view) "a")
(setf (link-ampersand view) "&"))
((or :xml-link :xml-link-labels)
(initialize-xml-view view)
(setf (link-href-start view)
"xmllink xlink:type=\"simple\" xlink:href=")
(setf (link-href-end view) "xmllink")
(setf (link-ampersand view) "&"))
((or :ie-xml-link :ie-xml-link-labels)
(initialize-xml-view view)
(setf (link-href-start view) "html:a href=")
(setf (link-href-end view) "html:a")
(setf (link-ampersand view) "&"))))
;;;; *************************************************************************
;;;; View Data Format Section
;;;; *************************************************************************
(defun class-name-of (obj)
(string-downcase (class-name (class-of obj))))
(defvar +newline-string+ (format nil "~%"))
(defun write-user-name-maybe-plural (obj nitems strm)
(write-string
(if (> nitems 1)
(hyperobject-class-user-name-plural obj)
(hyperobject-class-user-name obj))
strm))
(defun initialize-text-view (view)
(setf (list-start-printer view)
(compile nil
(eval '(lambda (obj nitems indent strm)
(declare (ignore indent))
(write-user-name-maybe-plural obj nitems strm)
(write-char #\: strm)
(write-char #\Newline strm)))))
(setf (list-start-indent view) t)
(setf (obj-data-indent view) t)
(setf (obj-data-end-printer view) +newline-string+)
(setf (indenter view) #'indent-spaces))
(defun html-list-start-func (obj nitems indent strm)
(write-string "" strm)
(write-user-name-maybe-plural obj nitems strm)
(write-string "
" strm)
(write-char #\newline strm)
(write-string "" strm)
(write-char #\newline strm))
(defun initialize-html-view (view)
(initialize-text-view view)
(setf (indenter view) #'indent-spaces)
(setf (file-start-str view) (format nil "~%"))
(setf (file-end-str view) (format nil "~%"))
(setf (list-start-indent view) t)
(setf (list-start-printer view) #'html-list-start-func)
(setf (list-end-printer view) (format nil "
~%"))
(setf (list-end-indent view) t)
(setf (obj-start-indent view) nil)
(setf (obj-start-printer view) "")
(setf (obj-end-indent view) nil)
(setf (obj-end-printer view) (format nil "~%"))
(setf (obj-data-end-printer view) nil)
(setf (obj-data-indent view) nil))
(defun xhtml-list-start-func (obj nitems indent strm)
(write-string "" strm)
(write-user-name-maybe-plural obj nitems strm)
(write-string "
" strm)
(write-string "" strm)
(write-char #\newline strm))
(defun table-list-start-func (obj nitems indent strm)
(write-string "
" strm)
(write-user-name-maybe-plural obj nitems strm)
(write-string "
" strm)
(write-char #\newline strm)
(write-string "
" strm)
(write-string "" strm)
(write-char #\newline strm))
(defun table-label-list-start-func (obj nitems indent strm)
(write-string "" strm)
(write-user-name-maybe-plural obj nitems strm)
(write-string "
" strm)
(write-char #\newline strm)
(write-string "" strm)
(write-string "" strm)
(dolist (slot (default-print-slots (class-of obj)))
(write-string "" strm)
(write-string (write-to-string slot) strm)
(write-string " | " strm))
(write-string "" strm)
(write-char #\newline strm)
(write-string "" strm)
(write-char #\newline strm))
(defun html-obj-start (obj indent strm)
(declare (ignore obj indent))
(write-string "" strm))
(defun initialize-xhtml-view (view)
(initialize-text-view view)
(setf (indenter view) #'indent-spaces)
(setf (file-start-str view) (format nil "~%"))
(setf (file-end-str view) (format nil "~%"))
(setf (list-start-indent view) nil)
(setf (list-start-printer view) #'xhtml-list-start-func)
(setf (list-end-printer view) (format nil "
~%"))
(setf (list-end-indent view) nil)
(setf (obj-start-indent view) nil)
(setf (obj-start-printer view) #'html-obj-start)
(setf (obj-end-printer view) (format nil "~%"))
(setf (obj-data-indent view) nil))
(defun initialize-table-view (view)
(initialize-text-view view)
(setf (indenter view) #'indent-spaces)
(setf (file-start-str view) (format nil "~%"))
(setf (file-end-str view) (format nil "~%"))
(setf (list-start-indent view) nil)
(setf (list-start-printer view) #'table-list-start-func)
(setf (list-end-printer view) (format nil "~%
~%"))
(setf (list-end-indent view) nil)
(setf (obj-start-indent view) nil)
(setf (obj-start-printer view) #'html-obj-start)
(setf (obj-start-printer view) (format nil ""))
(setf (obj-end-printer view) (format nil "
~%"))
(setf (obj-data-indent view) nil))
(defun xmlformat-list-end-func (x strm)
(write-string "" strm)
(write-string (class-name-of x) strm)
(write-string "list" strm)
(write-string ">" strm)
(write-char #\newline strm))
(defun xmlformat-list-start-func (x nitems indent strm)
(declare (ignore indent))
(write-char #\< strm)
(write-string (class-name-of x) strm)
(write-string "list>" strm)
(write-user-name-maybe-plural x nitems strm)
(write-string ":" strm)
(write-char #\newline strm))
(defun initialize-xml-view (view)
(let ((name (string-downcase (symbol-name (object-class view)))))
(setf (file-start-str view) "") ; (std-xml-header)
(setf (list-start-indent view) t)
(setf (list-start-printer view) #'xmlformat-list-start-func)
(setf (list-end-indent view) t)
(setf (list-end-printer view) #'xmlformat-list-end-func)
(setf (obj-start-printer view) (format nil "<~(~a~)>" name))
(setf (obj-start-indent view) t)
(setf (obj-end-printer view) (format nil "~(~a~)>~%" name))
;; (setf (subobj-end-printer view) (format nil "~(~a~)>~%" name))
(setf (subobj-end-printer view) nil)
(setf (subobj-end-indent view) nil)
(setf (obj-data-indent view) nil)))
;;; File Start and Ends
(defun fmt-file-start (view strm)
(awhen (file-start-str view)
(write-string it strm)))
(defun fmt-file-end (view strm)
(awhen (file-end-str view)
(write-string it strm)))
;;; List Start and Ends
(defun fmt-list-start (obj view strm indent num-items)
(when (list-start-indent view)
(awhen (indenter view)
(funcall it indent strm)))
(awhen (list-start-printer view)
(if (stringp it)
(write-string it strm)
(funcall it obj num-items indent strm))))
(defun fmt-list-end (obj view strm indent num-items)
(declare (ignore num-items))
(when (list-end-indent view)
(awhen (indenter view)
(funcall it indent strm)))
(awhen (list-end-printer view)
(if (stringp it)
(write-string it strm)
(funcall it obj strm))))
;;; Object Start and Ends
(defun fmt-obj-start (obj view strm indent)
(when (obj-start-indent view)
(awhen (indenter view)
(funcall it indent strm)))
(awhen (obj-start-printer view)
(if (stringp it)
(write-string it strm)
(funcall it obj indent strm))))
(defun fmt-obj-end (obj view strm indent)
(when (obj-end-indent view)
(awhen (indenter view)
(funcall it indent strm)))
(awhen (obj-end-printer view)
(if (stringp it)
(write-string it strm)
(funcall it obj strm))))
(defun fmt-subobj-start (obj view strm indent)
(when (subobj-start-indent view)
(awhen (indenter view)
(funcall it indent strm)))
(awhen (subobj-start-printer view)
(if (stringp it)
(write-string it strm)
(funcall it obj indent strm))))
(defun fmt-subobj-end (obj view strm indent)
(when (subobj-end-indent view)
(awhen (indenter view)
(funcall it indent strm)))
(awhen (subobj-end-printer view)
(if (stringp it)
(write-string it strm)
(funcall it obj strm))))
;;; Object Data
(defun make-link-start (view fieldfunc fieldvalue refvars link-printer)
(with-output-to-string (s)
(write-string (link-href-start view) s)
(write-char #\" s)
(let ((link-page (link-page view)))
(cond
((null link-printer)
(write-string (make-url link-page) s)
(write-string "?func=" s)
(write-simple fieldfunc s)
(write-string (link-ampersand view) s)
(write-string "key=" s)
(write-simple fieldvalue s)
(dolist (var refvars)
(write-string (link-ampersand view) s)
(write-simple (car var) s)
(write-char #\= s)
(write-simple (cdr var) s)))
(link-printer
(funcall link-printer link-page fieldfunc fieldvalue refvars s))))
(write-char #\" s)))
(defun make-link-end (obj view fieldname)
(declare (ignore obj fieldname))
(link-href-end view))
(defun fmt-obj-data (obj view strm indent refvars link-printer)
(awhen (obj-data-start-printer view)
(if (stringp it)
(write-string it strm)
(funcall it obj strm)))
(when (obj-data-indent view)
(awhen (indenter view)
(funcall it indent strm)))
(if (link-slots view)
(fmt-obj-data-with-link obj view strm refvars link-printer)
(fmt-obj-data-plain obj view strm))
(awhen (obj-data-end-printer view)
(if (stringp it)
(write-string it strm)
(funcall it obj strm))))
(defun fmt-obj-data-plain (obj view strm)
(awhen (obj-data-printer view)
(funcall it obj strm nil)))
(defun fmt-obj-data-with-link (obj view strm refvars link-printer)
(let ((refvalues '()))
(declare (dynamic-extent refvalues))
;; make list of hyperlink link fields for printing to refstr template
(dolist (name (link-slots view))
(awhen (find name (hyperobject-class-hyperlinks obj) :key #'name)
(push (make-link-start view (lookup it) (slot-value obj name)
(append (link-parameters it) refvars)
link-printer)
refvalues)
(push (make-link-end obj view name) refvalues)))
(funcall (obj-data-printer view) obj strm (nreverse refvalues))))
(defun obj-data (obj view)
"Returns the objects data as a string. Used by common-graphics outline function"
(with-output-to-string (s) (fmt-obj-data-plain obj view s)))
;;; Display method for objects
(defun load-all-subobjects (objs)
"Load all subobjects if they have not already been loaded."
(dolist (obj (mklist objs))
(dolist (subobj (hyperobject-class-subobjects obj))
(awhen (slot-value obj (name-slot subobj))
(load-all-subobjects it))))
objs)
(defun view-subobjects (obj strm &optional vid (indent 0) filter
subobjects refvars link-printer)
(when (hyperobject-class-subobjects obj)
(dolist (subobj (hyperobject-class-subobjects obj))
(aif (slot-value obj (name-slot subobj))
(view-hyperobject
it (get-view-id (car (mklist it)) vid)
strm vid (1+ indent) filter subobjects refvars
link-printer)))))
(defun view-hyperobject (objs view strm &optional vid (indent 0) filter
subobjects refvars link-printer)
"Display a single or list of hyperobject-class instances and their subobjects"
(let-when (objlist (mklist objs))
(let ((nobjs (length objlist))
(*print-pretty* nil)
(*print-circle* nil)
(*print-escape* nil)
(*print-readably* nil)
(*print-length* nil)
(*print-level* nil))
(fmt-list-start (car objlist) view strm indent nobjs)
(dolist (obj objlist)
(awhen (printer view)
(funcall it obj strm))
(unless (and filter (not (funcall filter obj)))
(fmt-obj-start obj view strm indent)
(fmt-obj-data obj view strm (1+ indent) refvars link-printer)
(fmt-obj-end obj view strm indent)
(if subobjects
(progn
(fmt-subobj-start obj view strm indent)
(view-subobjects obj strm vid indent filter subobjects
refvars link-printer)
(fmt-subobj-end obj view strm indent))
(fmt-subobj-start obj view strm indent))))
(fmt-list-end (car objlist) view strm indent nobjs)))
objs)
(defun view (objs &key (stream *standard-output*) vid view
filter subobjects refvars file-wrapper link-printer)
"EXPORTED Function: prints hyperobject-class objects. Calls view-hyperobject"
(let-when (objlist (mklist objs))
(unless view
(setq view (get-view-id (car objlist) vid)))
(when file-wrapper
(fmt-file-start view stream))
(view-hyperobject objlist view stream vid 0 filter subobjects refvars
link-printer)
(when file-wrapper
(fmt-file-end view stream)))
objs)
;;; Misc formatting
(defun fmt-comma-integer (i)
(format nil "~:d" i))