3.5 Configuration

(current-font-size) → nonnegative-exact-integer?

(current-font-size n) → void?

n : nonnegative-exact-integer?

Parameter that determines he font size used by t, para, etc. The default size is 32.

(current-main-font) → text-style/c

(current-main-font style) → void?

style : text-style/c

Parameter that determines the font size used by t, para, etc. The default is platform-specific; possible initial values include 'swiss, "Verdana", and "Gill Sans".

(current-line-sep) → nonnegative-exact-integer?

(current-line-sep n) → void?

n : nonnegative-exact-integer?

Parameter that controls the amount of space used between lines by para, item, and subitem.

(current-para-width) → nonnegative-exact-integer?

(current-para-width n) → void?

n : nonnegative-exact-integer?

Parameter that controls the width of a pict created by para, item, and subitem.

(current-title-color) → (or/c string? (is-a?/c color%))

(current-title-color color) → void?

color : (or/c string? (is-a?/c color%))

Parameter used by the default current-titlet to colorize the title. The default is "black".

(current-slide-assembler)   →   ((or/c string? false/c)  nonnegative-exact-integer?  pict?  . -> .  pict?)

(current-slide-assembler proc) → void?

proc   :   ((or/c string? false/c)  nonnegative-exact-integer?  pict?  . -> .  pict?)

Parameter whose value is a function for assembling slide content into a single pict; the assembling function takes a string for the title (or #f), a separation for the title (if any) and pict, and a pict for the slide content (not counting the title).

The result is of the assembler is lt-superimposed with the client area, but the result pict might draw outside the client region to paint the screen margins, too.

The default assembler uses titlet to turn a title string (if any) to a pict. See also current-titlet and set-title-h!,.

The slide assembler is not responsible for adding page numbers to the slide; that job belongs to the viewer. See also current-page-number-font, current-page-number-color, and set-page-numbers-visible!.

(current-titlet) → (string? . -> . pict?)

(current-titlet proc) → void?

proc : (string? . -> . pict?)

Parameter to configure titlet. The default is

(lambda (s)

(colorize (text s (current-main-font) 40)

(current-title-color)))

If this parameter is changed such that the result is a different height, then set-title-h! should be called to update the value produced by title-h, titleless-page, etc.

(set-margin! amt) → void?

amt : real?

Changes the margin that surrounds the client area. See also margin.

(set-title-h! amt) → void?

amt : real?

Changes the expected height of a title, which adjusts title-h, client-h, full-page, and titleless-page.

(make-slide-inset   left-inset             top-inset             right-inset             bottom-inset)   →   slide-inset?

left-inset : exact-nonnegative-integer?

top-inset : exact-nonnegative-integer?

right-inset : exact-nonnegative-integer?

bottom-inset : exact-nonnegative-integer?

Creates a slide inset, which describes a number of pixels to inset the viewer for a slide on each side.

(slide-inset? v) → boolean?

v : any/c

Returns #t if v is a slide inset created by make-slide-inset, #f otherwise.