Reindent the body, use `append-map'.
This commit is contained in:
Eli Barzilay
parent
82749312f6
commit
0aa659ffe5
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@ -7,6 +7,7 @@
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slideshow/pict
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slideshow/pict
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slideshow/code
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slideshow/code
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racket/class
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racket/class
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racket/list
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racket/path
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racket/path
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racket/gui/base
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racket/gui/base
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racket/runtime-path)
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racket/runtime-path)
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@ -17,155 +18,152 @@
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(define (do-initial-slides)
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(define (do-initial-slides)
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(slide
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(slide
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#:name "Title Slide"
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#:name "Title Slide"
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(titlet "Slideshow Tutorial")
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(titlet "Slideshow Tutorial")
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(blank)
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(blank)
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(size-in-pixels
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(size-in-pixels
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(bitmap (build-path (collection-path "icons") "PLT-206.png")))
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(bitmap (build-path (collection-path "icons") "PLT-206.png")))
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(blank)
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(blank)
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(colorize (it "Press the spacebar to continue") "blue")
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(colorize (it "Press the spacebar to continue") "blue")
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(comment "Welcome to Slideshow"))
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(comment "Welcome to Slideshow"))
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(slide
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(slide
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#:title "About Slideshow"
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#:title "About Slideshow"
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(para (bt "Slideshow")
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(para (bt "Slideshow")
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"is a library for creating slide presentations")
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"is a library for creating slide presentations")
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(item "A Slideshow presentation is a PLT Scheme program")
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(item "A Slideshow presentation is a PLT Scheme program")
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(item "Instead of a WYSIWYG interface,"
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(item "Instead of a WYSIWYG interface,"
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"you get the power of Scheme"))
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"you get the power of Scheme"))
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(define (symbol n)
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(text (string (integer->char n)) 'symbol (current-font-size)))
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(define sym:rightarrow (symbol 174))
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(define sym:leftarrow (symbol 172))
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(define (meta key)
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(define (symbol n)
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(hbl-append (t "Alt-")
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(text (string (integer->char n)) 'symbol (current-font-size)))
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(if (pict? key) key (tt key))
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(define sym:rightarrow (symbol 174))
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(t ", Cmd-")
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(define sym:leftarrow (symbol 172))
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(if (pict? key) key (tt key))
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(t ", or Meta-")
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(if (pict? key) key (tt key))))
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(slide
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(define (meta key)
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#:title "How to Control this Viewer"
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(hbl-append (t "Alt-")
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(scale/improve-new-text
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(if (pict? key) key (tt key))
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(table 3
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(t ", Cmd-")
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(apply
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(if (pict? key) key (tt key))
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append
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(t ", or Meta-")
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(map (lambda (s)
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(if (pict? key) key (tt key))))
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(list (para #:fill? #f (car s)) (t ":") (t (cadr s))))
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`(((,(meta "q")) "end show")
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(("Esc") "if confirmed, end show")
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((,sym:rightarrow ", Space," ,(tt "f") "," ,(tt "n") ", or click") "next slide")
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((,sym:leftarrow ", Backspace, Delete, or" ,(tt "b")) "previous slide")
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((,(tt "g")) "last slide")
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((,(tt "1")) "first slide")
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((,(meta "g")) "select a slide")
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((,(meta "p")) "show/hide slide number")
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((,(meta "c")) "show/hide commentary")
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((,(meta "d")) "show/hide preview")
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((,(meta "m")) "show/hide mouse cursor")
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((,(hbl-append (t "Shift-") sym:rightarrow) ", etc.") "move window 1 pixel")
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((,(meta sym:rightarrow) ", etc.") "move window 10 pixels"))))
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lbl-superimpose lbl-superimpose
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gap-size (/ gap-size 2))
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0.9)
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(comment "This window shows comments for each slide. "
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"The comments are typically fill in the details of what "
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"the slide presenter says when giving the talk."))
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(slide
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#:title "How to Control this Viewer"
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(scale/improve-new-text
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(table 3
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(append-map
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(lambda (s) (list (para #:fill? #f (car s)) (t ":") (t (cadr s))))
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`(((,(meta "q")) "end show")
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(("Esc") "if confirmed, end show")
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((,sym:rightarrow ", Space," ,(tt "f") "," ,(tt "n") ", or click") "next slide")
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((,sym:leftarrow ", Backspace, Delete, or" ,(tt "b")) "previous slide")
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((,(tt "g")) "last slide")
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((,(tt "1")) "first slide")
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((,(meta "g")) "select a slide")
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((,(meta "p")) "show/hide slide number")
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((,(meta "c")) "show/hide commentary")
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((,(meta "d")) "show/hide preview")
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((,(meta "m")) "show/hide mouse cursor")
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((,(hbl-append (t "Shift-") sym:rightarrow) ", etc.") "move window 1 pixel")
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((,(meta sym:rightarrow) ", etc.") "move window 10 pixels")))
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lbl-superimpose lbl-superimpose
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gap-size (/ gap-size 2))
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0.9)
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(comment "This window shows comments for each slide. "
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"The comments are typically fill in the details of what "
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"the slide presenter says when giving the talk."))
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(define mytalk.rkt (tt "mytalk.rkt"))
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(define mytalk.rkt (tt "mytalk.rkt"))
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(slide
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#:title "Slideshow Programs"
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(para "A Slideshow program has the form")
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(scale/improve-new-text
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(code #,(tt "#lang") slideshow
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... #,(it "code to generate slide content") ...)
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0.9)
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(colorize (hline (* 3/4 client-w) gap-size) "green")
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'alts
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(list (list (para "To run a Slideshow program,")
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(item "Double-click the" (bt "Slideshow") "executable or run"
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(tt "slideshow") "on the command line")
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(item "Click the" (bt "Open File...") "link and select the"
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"Slideshow program file, such as" mytalk.rkt))
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(list (para "Alternately, run a Slideshow program in DrRacket:")
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(item "Open" mytalk.rkt "in DrRacket")
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(item #:bullet (blank (+ (pict-width bullet) gap-size) 0)
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"DrRacket's language should change automatically to"
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(bt "Module"))
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(item "Click" (bt "Run") "in DrRacket")
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(colorize (bt "Use DrRacket only if you trust the program") "red"))
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(parameterize ([current-para-width client-w])
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(list (para (colorize (bt "Important security information:") "red"))
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(para "A slideshow program has access to the"
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(it "full") (it "Racket") (it "language"))
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(para "If you don't know the creator of a slide program"
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"(or if you don't trust them), run the slides through the"
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(bt "Slideshow") "executable or"
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(tt "slideshow") "command line")
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(colorize
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(para
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"When run in" (bt "Slideshow") "instead of DrRacket,"
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"a slide program cannot write files"
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"or make network connections")
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"blue")))
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(list (para "When using a command line, you can specify the program directly:")
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(hbl-append (tt "slideshow ") mytalk.rkt)
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(blank)
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(para "To print the talk:")
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(hbl-append (tt "slideshow --print ") mytalk.rkt)
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(blank)
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(colorize
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(para #:align 'right (it "Run") (tt "slideshow --help") (it "for more options"))
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"blue"))))
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(slide
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(define (sub-para . l)
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#:title "Slideshow Programs"
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(colorize (para #:width (* 3/4 (current-para-width)) l) "blue"))
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(para "A Slideshow program has the form")
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(scale/improve-new-text
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(code #,(tt "#lang") slideshow
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... #,(it "code to generate slide content") ...)
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0.9)
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(colorize (hline (* 3/4 client-w) gap-size) "green")
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'alts
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(list (list (para "To run a Slideshow program,")
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(item "Double-click the" (bt "Slideshow") "executable or run"
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(tt "slideshow") "on the command line")
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(item "Click the" (bt "Open File...") "link and select the"
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"Slideshow program file, such as" mytalk.rkt))
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(list (para "Alternately, run a Slideshow program in DrRacket:")
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(item "Open" mytalk.rkt "in DrRacket")
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(item #:bullet (blank (+ (pict-width bullet) gap-size) 0)
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"DrRacket's language should change automatically to"
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(bt "Module"))
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(item "Click" (bt "Run") "in DrRacket")
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(colorize (bt "Use DrRacket only if you trust the program") "red"))
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(parameterize ([current-para-width client-w])
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(list (para (colorize (bt "Important security information:") "red"))
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(para "A slideshow program has access to the"
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(it "full") (it "Racket") (it "language"))
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(para "If you don't know the creator of a slide program"
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"(or if you don't trust them), run the slides through the"
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(bt "Slideshow") "executable or"
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(tt "slideshow") "command line")
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(colorize
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(para
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"When run in" (bt "Slideshow") "instead of DrRacket,"
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"a slide program cannot write files"
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"or make network connections")
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"blue")))
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(list (para "When using a command line, you can specify the program directly:")
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(hbl-append (tt "slideshow ") mytalk.rkt)
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(blank)
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(para "To print the talk:")
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(hbl-append (tt "slideshow --print ") mytalk.rkt)
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(blank)
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(colorize
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(para #:align 'right (it "Run") (tt "slideshow --help") (it "for more options"))
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"blue"))))
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(define (sub-para . l)
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(slide
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(colorize (para #:width (* 3/4 (current-para-width)) l) "blue"))
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#:title "Slides and Picts"
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(para "The body of a Slideshow program")
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(item #:bullet (bt " 1.")
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"Makes and combines" (hbl-append (bit "pict") (t "s")))
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(sub-para "For example,")
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(code (t "Hello"))
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(sub-para "creates a pict like this:")
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(colorize (t "Hello") "black")
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(item #:bullet (bt " 2.") "Registers certain picts as slides")
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(sub-para "For example,")
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(code (slide (t "Hello")))
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(sub-para "registers a slide containing only" (colorize (t "Hello") "black")))
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(slide
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(slide
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#:title "Slides and Picts"
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#:title "The Rest of the Tutorial"
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(para "The body of a Slideshow program")
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(para "The rest of this tutorial (starting with the next slide) is meant to"
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(item #:bullet (bt " 1.")
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"be viewed while reading the program source")
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"Makes and combines" (hbl-append (bit "pict") (t "s")))
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(blank)
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(sub-para "For example,")
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(para #:width client-w "The source is")
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(code (t "Hello"))
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(let ([s (path->string tutorial-show)])
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(sub-para "creates a pict like this:")
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(clickback
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(colorize (t "Hello") "black")
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(scale/improve-new-text
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(item #:bullet (bt " 2.") "Registers certain picts as slides")
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(let ([p (tt s)])
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(sub-para "For example,")
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(colorize
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(code (slide (t "Hello")))
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(pin-over p 0 (pict-height p)
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(sub-para "registers a slide containing only" (colorize (t "Hello") "black")))
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(linewidth 2 (hline (pict-width p) 2)))
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"blue"))
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(min 1 (/ (* 0.8 client-w ) (pict-width (tt s)))))
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(lambda ()
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(let* ([f (new frame% [label (path-element->string
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(file-name-from-path tutorial-show))]
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[width 600] [height 400])]
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[e (new text%)]
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[c (new editor-canvas% [parent f] [editor e])])
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(send e load-file s)
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(send e change-style
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(make-object style-delta% 'change-family 'modern)
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0 'end)
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(send f show #t))))))
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(slide
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)
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#:title "The Rest of the Tutorial"
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(para "The rest of this tutorial (starting with the next slide) is meant to"
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"be viewed while reading the program source")
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(blank)
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(para #:width client-w "The source is")
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(let ([s (path->string tutorial-show)])
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(clickback
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(scale/improve-new-text
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(let ([p (tt s)])
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(colorize
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(pin-over p 0 (pict-height p)
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(linewidth 2 (hline (pict-width p) 2)))
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"blue"))
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(min 1 (/ (* 0.8 client-w ) (pict-width (tt s)))))
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(lambda ()
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(let* ([f (new frame% [label (path-element->string
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(file-name-from-path tutorial-show))]
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[width 600] [height 400])]
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[e (new text%)]
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[c (new editor-canvas% [parent f] [editor e])])
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(send e load-file s)
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(send e change-style
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(make-object style-delta% 'change-family 'modern)
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0 'end)
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(send f show #t))))))
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)
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