113 lines
3.5 KiB
Scheme
Executable File
113 lines
3.5 KiB
Scheme
Executable File
#!/bin/sh
|
|
exec scsh -ll sunterlib-0.5/sunterlib.scm -lel scx/load.scm -o xlib -o rendezvous-channels -o threads -o srfi-1 -o signals -o xft -o xrender -s "$0" "$@"
|
|
!#
|
|
|
|
(define *font-size* 36.0)
|
|
|
|
(define (fontset->list-of-patterns fs)
|
|
(let ((count (xft-fontset-count fs))
|
|
(ref (lambda (x) (xft-fontset-ref fs x))))
|
|
(unfold
|
|
(lambda (x) (equal? count x))
|
|
ref
|
|
(lambda (x) (+ x 1))
|
|
0)))
|
|
|
|
(define (list-all-fonts display screen)
|
|
(let ((p (make-xft-pattern))
|
|
(os (make-xft-objectset)))
|
|
(xft-objectset-add os (xft-pattern-object family))
|
|
(let ((fs (xft-list-fonts-pattern-objects display screen p os)))
|
|
(fontset->list-of-patterns fs))))
|
|
|
|
(define (family-name-of-font font)
|
|
(call-with-values
|
|
(lambda ()
|
|
(xft-pattern-get (xft-font-pattern font) (xft-pattern-object family) 0))
|
|
(lambda (code name)
|
|
(if (xft-result-match? code)
|
|
name "unknown font name"))))
|
|
|
|
(define (draw-font-name draw color-fg color-bg font)
|
|
(xft-draw-rect draw color-bg 0 0 400 200)
|
|
(xft-draw-string-8bit draw color-fg font 10 65 (family-name-of-font font)))
|
|
|
|
(define (open-font dpy screen pattern)
|
|
(call-with-values
|
|
(lambda ()
|
|
(let ((copy (xft-pattern-duplicate pattern)))
|
|
(xft-pattern-add copy (xft-pattern-object size) *font-size* #f)
|
|
(xft-font-match dpy screen copy)))
|
|
(lambda (result pattern)
|
|
(cond
|
|
((and (xft-result-match? result)
|
|
(xft-font-open-pattern dpy pattern))
|
|
=> (lambda (font) font))
|
|
(else
|
|
(xft-pattern-print pattern)
|
|
(error "Could not open font!"))))))
|
|
|
|
(define (font-demo)
|
|
(let* ((dpy (open-display))
|
|
(screen (display:default-screen dpy))
|
|
(cm (screen:default-colormap screen))
|
|
(cm (copy-colormap-and-free dpy (screen:default-colormap screen)))
|
|
|
|
;; many ways to get color in your progs.
|
|
(black (screen:black-pixel screen))
|
|
(white (screen:white-pixel screen))
|
|
|
|
(win (create-simple-window dpy
|
|
(default-root-window dpy)
|
|
100 200 400 200 1
|
|
black white))
|
|
(gc (create-gc dpy win
|
|
(make-gc-value-alist (background white)
|
|
(foreground black))))
|
|
(visual (screen:default-visual screen))
|
|
(xft-draw (make-xft-draw dpy win visual cm))
|
|
(xft-black (xft-color-alloc-name dpy visual cm "black"))
|
|
(xft-white (xft-color-alloc-name dpy visual cm "white"))
|
|
(standard-font (open-font dpy screen (make-xft-pattern))))
|
|
|
|
(set-window-colormap! dpy win cm)
|
|
(set-wm-name! dpy win (string-list->property '("scx Xft Demo Program")))
|
|
|
|
(spawn (lambda ()
|
|
(let loop ((se (most-recent-sync-x-event)))
|
|
(display "event: ") (display (sync-x-event-event se))
|
|
(display "\n")
|
|
(loop (next-sync-x-event se (lambda (e) #t))))))
|
|
;;(synchronize dpy #f)
|
|
|
|
(init-sync-x-events dpy)
|
|
(let ((handler
|
|
(lambda (channel)
|
|
(map-window dpy win)
|
|
(let loop ((font-patterns (list-all-fonts dpy screen))
|
|
(font standard-font))
|
|
|
|
(if
|
|
(let ((e (receive channel)))
|
|
(cond
|
|
|
|
((button-event? e)
|
|
(if (null? font-patterns)
|
|
(loop (list-all-fonts dpy screen) standard-font)
|
|
(let ((font (open-font dpy screen (car font-patterns))))
|
|
(draw-font-name xft-draw xft-black xft-white font)
|
|
(loop (cdr font-patterns) font))))
|
|
|
|
((expose-event? e)
|
|
(draw-font-name xft-draw xft-black xft-white font))
|
|
|
|
((motion-event? e) #t)
|
|
(else #f)))
|
|
(loop font-patterns font))))))
|
|
(call-with-event-channel dpy win (event-mask exposure button-press
|
|
pointer-motion)
|
|
handler)
|
|
(close-display dpy))))
|
|
|
|
(font-demo)
|