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|
;;; slide.scm -- Overhead transparencies.
;;;
;;; Copyright 2003, 2004 Manuel Serrano
;;; Copyright 2006 Ludovic Court�s <ludovic.courtes@laas.fr>
;;;
;;;
;;; This program is free software; you can redistribute it and/or modify
;;; it under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 2 of the License, or
;;; (at your option) any later version.
;;;
;;; This program is distributed in the hope that it will be useful,
;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with this program; if not, write to the Free Software
;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
;;; USA.
(define-module (skribilo package slide)
:use-module (skribilo reader)
:use-module (skribilo utils syntax)
:use-module (skribilo lib)
:use-module (skribilo ast)
:use-module (skribilo engine)
:use-module (skribilo evaluator) ;; `*load-options*'
:use-module (skribilo package base)
:autoload (skribilo utils keywords) (the-options the-body)
:use-module (srfi srfi-1)
:use-module (ice-9 optargs))
(fluid-set! current-reader (make-reader 'skribe))
;*---------------------------------------------------------------------*/
;* slide-options */
;*---------------------------------------------------------------------*/
(define-public &slide-load-options (*load-options*))
;*---------------------------------------------------------------------*/
;* %slide-the-slides ... */
;*---------------------------------------------------------------------*/
(define %slide-the-slides '())
(define %slide-the-counter 0)
;*---------------------------------------------------------------------*/
;* slide ... */
;*---------------------------------------------------------------------*/
(define-markup (slide #!rest opt
#!key
(ident #f) (class #f)
(toc #t)
title (number #t)
(vspace #f) (vfill #f)
(transition #f)
(bg #f) (image #f))
(let ((s (new container
(markup 'slide)
(ident (if (not ident)
(symbol->string (gensym "slide"))
ident))
(class class)
(required-options '(:title :number :toc))
(options `((:number
,(cond
((number? number)
(set! %slide-the-counter number)
number)
(number
(set! %slide-the-counter
(+ 1 %slide-the-counter))
%slide-the-counter)
(else
#f)))
(:toc ,toc)
,@(the-options opt :ident :class :vspace :toc)))
(body (if vspace
(list (slide-vspace vspace) (the-body opt))
(the-body opt))))))
(set! %slide-the-slides (cons s %slide-the-slides))
s))
;*---------------------------------------------------------------------*/
;* ref ... */
;*---------------------------------------------------------------------*/
(define %slide-old-ref ref)
;; Extend the definition of `ref'.
;; FIXME: This technique breaks `ref' for some reason.
; (set! ref
; (lambda args
; ;; Filter out ARGS and look for a `:slide' keyword argument.
; (let loop ((slide #f)
; (opt '())
; (args args))
; (if (null? args)
; (set! opt (reverse! opt))
; (let ((s? (eq? (car args) :slide)))
; (loop (if s? (cadr args) #f)
; (if s? opt (cons (car args) opt))
; (if s? (cddr args) (cdr args)))))
; (format (current-error-port)
; "slide.scm:ref: slide=~a opt=~a~%" slide opt)
; (if (not slide)
; (apply %slide-old-ref opt)
; (new unresolved
; (proc (lambda (n e env)
; (cond
; ((eq? slide 'next)
; (let ((c (assq n %slide-the-slides)))
; (if (pair? c)
; (handle (cadr c))
; #f)))
; ((eq? slide 'prev)
; (let ((c (assq n (reverse %slide-the-slides))))
; (if (pair? c)
; (handle (cadr c))
; #f)))
; ((number? slide)
; (let loop ((s %slide-the-slides))
; (cond
; ((null? s)
; #f)
; ((= slide (markup-option
; (car s) :number))
; (handle (car s)))
; (else
; (loop (cdr s))))))
; (else
; #f)))))))))
;*---------------------------------------------------------------------*/
;* slide-pause ... */
;*---------------------------------------------------------------------*/
(define-markup (slide-pause)
(new markup
(markup 'slide-pause)))
;*---------------------------------------------------------------------*/
;* slide-vspace ... */
;*---------------------------------------------------------------------*/
(define-markup (slide-vspace #!rest opt #!key (unit 'cm))
(new markup
(markup 'slide-vspace)
(options `((:unit ,unit) ,@(the-options opt :unit)))
(body (the-body opt))))
;*---------------------------------------------------------------------*/
;* slide-embed ... */
;*---------------------------------------------------------------------*/
(define-markup (slide-embed #!rest opt
#!key
command
(arguments '())
(geometry-opt "-geometry")
(geometry #f) (rgeometry #f)
(transient #f) (transient-opt #f)
(alt #f)
&skribe-eval-location)
(if (not (string? command))
(skribe-error 'slide-embed
"No command provided"
command)
(new markup
(markup 'slide-embed)
(loc &skribe-eval-location)
(required-options '(:alt))
(options `((:geometry-opt ,geometry-opt)
(:alt ,alt)
,@(the-options opt :geometry-opt :alt)))
(body (the-body opt)))))
;*---------------------------------------------------------------------*/
;* slide-record ... */
;*---------------------------------------------------------------------*/
(define-markup (slide-record #!rest opt #!key ident class tag (play #t))
(if (not tag)
(skribe-error 'slide-record "Tag missing" tag)
(new markup
(markup 'slide-record)
(ident ident)
(class class)
(options `((:play ,play) ,@(the-options opt)))
(body (the-body opt)))))
;*---------------------------------------------------------------------*/
;* slide-play ... */
;*---------------------------------------------------------------------*/
(define-markup (slide-play #!rest opt #!key ident class tag color)
(if (not tag)
(skribe-error 'slide-play "Tag missing" tag)
(new markup
(markup 'slide-play)
(ident ident)
(class class)
(options `((:color ,(if color (skribe-use-color! color) #f))
,@(the-options opt :color)))
(body (the-body opt)))))
;*---------------------------------------------------------------------*/
;* slide-play* ... */
;*---------------------------------------------------------------------*/
(define-markup (slide-play* #!rest opt
#!key ident class color (scolor "#000000"))
(let ((body (the-body opt)))
(for-each (lambda (lbl)
(match-case lbl
((?id ?col)
(skribe-use-color! col))))
body)
(new markup
(markup 'slide-play*)
(ident ident)
(class class)
(options `((:color ,(if color (skribe-use-color! color) #f))
(:scolor ,(if color (skribe-use-color! scolor) #f))
,@(the-options opt :color :scolor)))
(body body))))
;*---------------------------------------------------------------------*/
;* slide-number ... */
;*---------------------------------------------------------------------*/
(define-public (slide-number)
(length (filter (lambda (n)
(and (is-markup? n 'slide)
(markup-option n :number)))
%slide-the-slides)))
;*---------------------------------------------------------------------*/
;* slide-topic ... */
;*---------------------------------------------------------------------*/
(define-markup (slide-topic #!rest opt
#!key title (outline? #t)
(ident #f) (class #f))
(new container
(markup 'slide-topic)
(required-options '(:title :outline?))
(ident (or ident (symbol->string (gensym "slide-topic"))))
(class class)
(options `((:outline? ,outline?)
,@(the-options opt :outline? :class)))
(body (the-body opt))))
;*---------------------------------------------------------------------*/
;* slide-subtopic ... */
;*---------------------------------------------------------------------*/
(define-markup (slide-subtopic #!rest opt
#!key title (outline? #f)
(ident #f) (class #f))
(new container
(markup 'slide-subtopic)
(required-options '(:title :outline?))
(ident (or ident (symbol->string (gensym "slide-subtopic"))))
(class class)
(options `((:outline? ,outline?)
,@(the-options opt :outline? :class)))
(body (the-body opt))))
;;;
;;; Initialization.
;;;
(format (current-error-port) "Slides initializing...~%")
;; Register specific implementations for lazy loading.
(when-engine-class-is-loaded 'base
(lambda ()
(resolve-module '(skribilo package slide base))))
(when-engine-class-is-loaded 'latex
(lambda ()
(resolve-module '(skribilo package slide latex))))
(when-engine-class-is-loaded 'html
(lambda ()
(resolve-module '(skribilo package slide html))))
(when-engine-class-is-loaded 'lout
(lambda ()
(resolve-module '(skribilo package slide lout))))
|
