12 lines
706 B
Plaintext
12 lines
706 B
Plaintext
IN: gadgets-books
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USING: help gadgets ;
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HELP: book
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{ $class-description "A book is a " { $link control } " containing one or more children. The " { $link control-value } " is the index of exactly one child to be visible at any one time, the rest being hidden by having their " { $link gadget-visible? } " slots set to " { $link f } ". The sole visible child assumes the dimensions of the book gadget."
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$terpri
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"Books are created by calling " { $link <book> } "." } ;
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HELP: <book>
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{ $values { "pages" "a sequence of gadgets" } { "book" book } }
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{ $description "Creates a " { $link book } { $link control } ", which contains the gadgets in " { $snippet "pages" } " and displays exactly one at a time." } ;
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