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(etypecase spec
(color
(with-buffer-request (display *x-storecolors*)
(colormap colormap)
(card32 pixel)
(rgb-val (color-red spec)
(color-green spec)
(color-blue spec))
(card8 flags)
(pad8 nil)))
(stringable
(let* ((string (string spec))
(length (length string)))
(with-buffer-request (display *x-storenamedcolor*)
((data card8) flags)
(colormap colormap)
(card32 pixel)
(card16 length)
(pad16 nil)
(string string)))))))
(defun store-colors (colormap specs &key (red-p t) (green-p t) (blue-p t))
;; If stringables are specified for colors, it is unspecified whether all
;; stringables are first resolved and then a single StoreColors protocol request is
;; issued, or whether multiple StoreColors protocol requests are issued.
(declare (type colormap colormap)
(type sequence specs)
(type generalized-boolean red-p green-p blue-p))
(etypecase specs
(list
(do ((spec specs (cddr spec)))
((endp spec))
(store-color colormap (car spec) (cadr spec) :red-p red-p :green-p green-p :blue-p blue-p)))
(vector
(do ((i 0 (+ i 2))
(len (length specs)))
((>= i len))
(store-color colormap (aref specs i) (aref specs (1+ i)) :red-p red-p :green-p green-p :blue-p blue-p)))))
(defun query-colors (colormap pixels &key (result-type 'list))
(declare (type colormap colormap)
(type sequence pixels) ;; sequence of integer
(type t result-type)) ;; a type specifier
(declare (clx-values (clx-sequence color)))
(let ((display (colormap-display colormap)))
(with-buffer-request-and-reply (display *x-querycolors* nil :sizes (8 16))
((colormap colormap)
(sequence pixels))
(let ((sequence (make-sequence result-type (card16-get 8))))
(advance-buffer-offset *replysize*)
(dotimes (i (length sequence) sequence)
(setf (elt sequence i)
(make-color :red (rgb-val-get 0)
:green (rgb-val-get 2)
:blue (rgb-val-get 4)))
(advance-buffer-offset 8))))))
(defun lookup-color (colormap name)
(declare (type colormap colormap)
(type stringable name))
(declare (clx-values screen-color true-color))
(let* ((display (colormap-display colormap))
(string (string name))
(length (length string)))
(with-buffer-request-and-reply (display *x-lookupcolor* 20 :sizes 16)
((colormap colormap)
(card16 length)
(pad16 nil)
(string string))
(values
(make-color :red (rgb-val-get 14)
:green (rgb-val-get 16)
:blue (rgb-val-get 18))
(make-color :red (rgb-val-get 8)
:green (rgb-val-get 10)
:blue (rgb-val-get 12))))))
(defun create-cursor (&key
(source (required-arg source))
mask
(x (required-arg x))
(y (required-arg y))
(foreground (required-arg foreground))
(background (required-arg background)))
(declare (type pixmap source) ;; required
(type (or null pixmap) mask)
(type card16 x y) ;; required
(type (or null color) foreground background)) ;; required
(declare (clx-values cursor))
(let* ((display (pixmap-display source))
(cursor (make-cursor :display display))
(cid (allocate-resource-id display cursor 'cursor)))
(setf (cursor-id cursor) cid)
(with-buffer-request (display *x-createcursor*)
(resource-id cid)
(pixmap source)
((or null pixmap) mask)
(rgb-val (color-red foreground)
(color-green foreground)
(color-blue foreground))
(rgb-val (color-red background)
(color-green background)
(color-blue background))
(card16 x y))
cursor))
(defun create-glyph-cursor (&key
(source-font (required-arg source-font))
(source-char (required-arg source-char))
mask-font
mask-char
(foreground (required-arg foreground))
(background (required-arg background)))
(declare (type font source-font) ;; Required
(type card16 source-char) ;; Required
(type (or null font) mask-font)
(type (or null card16) mask-char)
(type color foreground background)) ;; required
(declare (clx-values cursor))
(let* ((display (font-display source-font))
(cursor (make-cursor :display display))
(cid (allocate-resource-id display cursor 'cursor))
(source-font-id (font-id source-font))
(mask-font-id (if mask-font (font-id mask-font) 0)))
(setf (cursor-id cursor) cid)
(unless mask-char (setq mask-char 0))
(with-buffer-request (display *x-createglyphcursor*)
(resource-id cid source-font-id mask-font-id)
(card16 source-char)
(card16 mask-char)
(rgb-val (color-red foreground)
(color-green foreground)
(color-blue foreground))
(rgb-val (color-red background)
(color-green background)
(color-blue background)))
cursor))
(defun free-cursor (cursor)
(declare (type cursor cursor))
(let ((display (cursor-display cursor)))
(with-buffer-request (display *x-freecursor*)
(cursor cursor))
(deallocate-resource-id display (cursor-id cursor) 'cursor)))
(defun recolor-cursor (cursor foreground background)
(declare (type cursor cursor)
(type color foreground background))
(with-buffer-request ((cursor-display cursor) *x-recolorcursor*)
(cursor cursor)
(rgb-val (color-red foreground)
(color-green foreground)
(color-blue foreground))
(rgb-val (color-red background)
(color-green background)
(color-blue background))
))
(defun query-best-cursor (width height drawable)
(declare (type card16 width height)
(type (or drawable display) drawable))
(declare (clx-values width height))
;; Drawable can be a display for compatibility.
(multiple-value-bind (display drawable)
(if (type? drawable 'drawable)
(values (drawable-display drawable) drawable)
(values drawable (screen-root (display-default-screen drawable))))
(with-buffer-request-and-reply (display *x-querybestsize* 12 :sizes 16)
((data 0)
(window drawable)
(card16 width height))
(values
(card16-get 8)
(card16-get 10)))))
(defun query-best-tile (width height drawable)
(declare (type card16 width height)
(type drawable drawable))
(declare (clx-values width height))
(let ((display (drawable-display drawable)))
(with-buffer-request-and-reply (display *x-querybestsize* 12 :sizes 16)
((data 1)
(drawable drawable)
(card16 width height))
(values
(card16-get 8)
(card16-get 10)))))
(defun query-best-stipple (width height drawable)
(declare (type card16 width height)
(type drawable drawable))
(declare (clx-values width height))
(let ((display (drawable-display drawable)))
(with-buffer-request-and-reply (display *x-querybestsize* 12 :sizes 16)
((data 2)
(drawable drawable)
(card16 width height))
(values
(card16-get 8)
(card16-get 10)))))
(defun query-extension (display name)
(declare (type display display)
(type stringable name))
(declare (clx-values major-opcode first-event first-error))
(let ((string (string name)))
(with-buffer-request-and-reply (display *x-queryextension* 12 :sizes 8)
((card16 (length string))
(pad16 nil)
(string string))
(and (boolean-get 8) ;; If present
(values
(card8-get 9)
(card8-get 10)
(card8-get 11))))))
(defun list-extensions (display &key (result-type 'list))
(declare (type display display)
(type t result-type)) ;; CL type
(declare (clx-values (clx-sequence string)))
(with-buffer-request-and-reply (display *x-listextensions* size :sizes 8)
()
(values
(read-sequence-string
buffer-bbuf (index- size *replysize*) (card8-get 1) result-type *replysize*))))
(defun change-keyboard-control (display &key key-click-percent
bell-percent bell-pitch bell-duration
led led-mode key auto-repeat-mode)
(declare (type display display)
(type (or null (member :default) int16) key-click-percent
bell-percent bell-pitch bell-duration)
(type (or null card8) led key)
(type (or null (member :on :off)) led-mode)
(type (or null (member :on :off :default)) auto-repeat-mode))
(when (eq key-click-percent :default) (setq key-click-percent -1))
(when (eq bell-percent :default) (setq bell-percent -1))
(when (eq bell-pitch :default) (setq bell-pitch -1))
(when (eq bell-duration :default) (setq bell-duration -1))
(with-buffer-request (display *x-changekeyboardcontrol* :sizes (32))
(mask
(integer key-click-percent bell-percent bell-pitch bell-duration)
(card32 led)
((member :off :on) led-mode)
(card32 key)
((member :off :on :default) auto-repeat-mode))))
(defun keyboard-control (display)
(declare (type display display))
(declare (clx-values key-click-percent bell-percent bell-pitch bell-duration
led-mask global-auto-repeat auto-repeats))
(with-buffer-request-and-reply (display *x-getkeyboardcontrol* 32 :sizes (8 16 32))
()
(values
(card8-get 12)
(card8-get 13)
(card16-get 14)
(card16-get 16)
(card32-get 8)
(member8-get 1 :off :on)
(bit-vector256-get 32))))
;; The base volume should
;; be considered to be the "desired" volume in the normal case; that is, a
;; typical application should call XBell with 0 as the percent. Rather
;; than using a simple sum, the percent argument is instead used as the
;; percentage of the remaining range to alter the base volume by. That is,
;; the actual volume is:
;; if percent>=0: base - [(base * percent) / 100] + percent
;; if percent<0: base + [(base * percent) / 100]
(defun bell (display &optional (percent-from-normal 0))
;; It is assumed that an eventual audio extension to X will provide more complete control.
(declare (type display display)
(type int8 percent-from-normal))
(with-buffer-request (display *x-bell*)
(data (int8->card8 percent-from-normal))))
(defun pointer-mapping (display &key (result-type 'list))
(declare (type display display)
(type t result-type)) ;; CL type
(declare (clx-values sequence)) ;; Sequence of card
(with-buffer-request-and-reply (display *x-getpointermapping* nil :sizes 8)
()
(values
(sequence-get :length (card8-get 1) :result-type result-type :format card8
:index *replysize*))))
(defun set-pointer-mapping (display map)
;; Can signal device-busy.
(declare (type display display)
(type sequence map)) ;; Sequence of card8
(when (with-buffer-request-and-reply (display *x-setpointermapping* 2 :sizes 8)
((data (length map))
((sequence :format card8) map))
(values
(boolean-get 1)))
(x-error 'device-busy :display display))
map)
(defsetf pointer-mapping set-pointer-mapping)
(defun change-pointer-control (display &key acceleration threshold)
;; Acceleration is rationalized if necessary.
(declare (type display display)
(type (or null (member :default) number) acceleration)
(type (or null (member :default) integer) threshold))
(flet ((rationalize16 (number)
;; Rationalize NUMBER into the ratio of two signed 16 bit numbers
(declare (type number number))
(declare (clx-values numerator denominator))
(do* ((rational (rationalize number))
(numerator (numerator rational) (ash numerator -1))
(denominator (denominator rational) (ash denominator -1)))
((or (= numerator 1)
(and (< (abs numerator) #x8000)
(< denominator #x8000)))
(values
numerator (min denominator #x7fff))))))
(declare (inline rationalize16))
(let ((acceleration-p 1)
(threshold-p 1)
(numerator 0)
(denominator 1))
(declare (type card8 acceleration-p threshold-p)
(type int16 numerator denominator))
(cond ((eq acceleration :default) (setq numerator -1))
(acceleration (multiple-value-setq (numerator denominator)
(rationalize16 acceleration)))
(t (setq acceleration-p 0)))
(cond ((eq threshold :default) (setq threshold -1))
((null threshold) (setq threshold -1
threshold-p 0)))
(with-buffer-request (display *x-changepointercontrol*)
(int16 numerator denominator threshold)
(card8 acceleration-p threshold-p)))))
(defun pointer-control (display)
(declare (type display display))
(declare (clx-values acceleration threshold))
(with-buffer-request-and-reply (display *x-getpointercontrol* 16 :sizes 16)
()
(values
(/ (card16-get 8) (card16-get 10)) ; Should we float this?
(card16-get 12))))
(defun set-screen-saver (display timeout interval blanking exposures)
;; Timeout and interval are in seconds, will be rounded to minutes.
(declare (type display display)
(type (or (member :default) int16) timeout interval)
(type (member :on :off :default :yes :no) blanking exposures))
(case blanking (:yes (setq blanking :on)) (:no (setq blanking :off)))
(case exposures (:yes (setq exposures :on)) (:no (setq exposures :off)))
(when (eq timeout :default) (setq timeout -1))
(when (eq interval :default) (setq interval -1))
(with-buffer-request (display *x-setscreensaver*)
(int16 timeout interval)
((member8 :on :off :default) blanking exposures)))
(defun screen-saver (display)
;; Returns timeout and interval in seconds.
(declare (type display display))
(declare (clx-values timeout interval blanking exposures))
(with-buffer-request-and-reply (display *x-getscreensaver* 14 :sizes (8 16))
()
(values
(card16-get 8)
(card16-get 10)
(member8-get 12 :on :off :default)
(member8-get 13 :on :off :default))))
(defun activate-screen-saver (display)
(declare (type display display))
(with-buffer-request (display *x-forcescreensaver*)
(data 1)))
(defun reset-screen-saver (display)
(declare (type display display))
(with-buffer-request (display *x-forcescreensaver*)
(data 0)))
(defun add-access-host (display host &optional (family :internet))
;; A string must be acceptable as a host, but otherwise the possible types for
;; host are not constrained, and will likely be very system dependent.
;; This implementation uses a list whose car is the family keyword
;; (:internet :DECnet :Chaos) and cdr is a list of network address bytes.
(declare (type display display)
(type (or stringable list) host)
(type (or null (member :internet :decnet :chaos) card8) family))
(change-access-host display host family nil))
(defun remove-access-host (display host &optional (family :internet))
;; A string must be acceptable as a host, but otherwise the possible types for
;; host are not constrained, and will likely be very system dependent.
;; This implementation uses a list whose car is the family keyword
;; (:internet :DECnet :Chaos) and cdr is a list of network address bytes.
(declare (type display display)
(type (or stringable list) host)
(type (or null (member :internet :decnet :chaos) card8) family))
(change-access-host display host family t))
(defun change-access-host (display host family remove-p)
(declare (type display display)
(type (or stringable list) host)
(type (or null (member :internet :decnet :chaos) card8) family))
(unless (consp host)
(setq host (host-address host family)))
(let ((family (car host))
(address (cdr host)))
(with-buffer-request (display *x-changehosts*)
((data boolean) remove-p)
(card8 (encode-type (or null (member :internet :decnet :chaos) card32) family))
(card16 (length address))
((sequence :format card8) address))))
(defun access-hosts (display &optional (result-type 'list))
;; The type of host objects returned is not constrained, except that the hosts must
;; be acceptable to add-access-host and remove-access-host.
;; This implementation uses a list whose car is the family keyword
;; (:internet :DECnet :Chaos) and cdr is a list of network address bytes.
(declare (type display display)
(type t result-type)) ;; CL type
(declare (clx-values (clx-sequence host) enabled-p))
(with-buffer-request-and-reply (display *x-listhosts* nil :sizes (8 16))
()
(let* ((enabled-p (boolean-get 1))
(nhosts (card16-get 8))
(sequence (make-sequence result-type nhosts)))
(advance-buffer-offset *replysize*)
(dotimes (i nhosts)
(let ((family (card8-get 0))
(len (card16-get 2)))
(setf (elt sequence i)
(cons (if (< family 3)
(svref '#(:internet :decnet :chaos) family)
family)
(sequence-get :length len :format card8 :result-type 'list
:index (+ buffer-boffset 4))))
(advance-buffer-offset (+ 4 (* 4 (ceiling len 4))))))
(values
sequence
enabled-p))))
(defun access-control (display)
(declare (type display display))
(declare (clx-values generalized-boolean)) ;; True when access-control is ENABLED
(with-buffer-request-and-reply (display *x-listhosts* 2 :sizes 8)
()
(boolean-get 1)))
(defun set-access-control (display enabled-p)
(declare (type display display)
(type generalized-boolean enabled-p))
(with-buffer-request (display *x-changeaccesscontrol*)
((data boolean) enabled-p))
enabled-p)
(defsetf access-control set-access-control)
(defun close-down-mode (display)
;; setf'able
;; Cached locally in display object.
(declare (type display display))
(declare (clx-values (member :destroy :retain-permanent :retain-temporary nil)))
(display-close-down-mode display))
(defun set-close-down-mode (display mode)
;; Cached locally in display object.
(declare (type display display)
(type (member :destroy :retain-permanent :retain-temporary) mode))
(setf (display-close-down-mode display) mode)
(with-buffer-request (display *x-changeclosedownmode* :sizes (32))
((data (member :destroy :retain-permanent :retain-temporary)) mode))
mode)
(defsetf close-down-mode set-close-down-mode)
(defun kill-client (display resource-id)
(declare (type display display)
(type resource-id resource-id))
(with-buffer-request (display *x-killclient*)
(resource-id resource-id)))
(defun kill-temporary-clients (display)
(declare (type display display))
(with-buffer-request (display *x-killclient*)
(resource-id 0)))
(defun no-operation (display)
(declare (type display display))
(with-buffer-request (display *x-nooperation*)))