src/xlib-util.lisp

   1 ;;; --------------------------------------------------------------------------
   2 ;;; CLFSWM - FullScreen Window Manager
   3 ;;;
   4 ;;; --------------------------------------------------------------------------
   5 ;;; Documentation: Utility functions
   6 ;;; --------------------------------------------------------------------------
   7 ;;;
   8 ;;; (C) 2010 Philippe Brochard <hocwp@free.fr>
   9 ;;;
  10 ;;; This program is free software; you can redistribute it and/or modify
  11 ;;; it under the terms of the GNU General Public License as published by
  12 ;;; the Free Software Foundation; either version 3 of the License, or
  13 ;;; (at your option) any later version.
  14 ;;;
  15 ;;; This program is distributed in the hope that it will be useful,
  16 ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 ;;; GNU General Public License for more details.
  19 ;;;
  20 ;;; You should have received a copy of the GNU General Public License
  21 ;;; along with this program; if not, write to the Free Software
  22 ;;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  23 ;;;
  24 ;;; --------------------------------------------------------------------------
  25
  26 (in-package :clfswm)
  27
  28 ;; Window states
  29 (defconstant +withdrawn-state+ 0)
  30 (defconstant +normal-state+ 1)
  31 (defconstant +iconic-state+ 3)
  32
  33
  34 (defparameter *window-events* '(:structure-notify
  35                                 :property-change
  36                                 :colormap-change
  37                                 :focus-change
  38                                 :enter-window
  39                                 :exposure)
  40   "The events to listen for on managed windows.")
  41
  42
  43 (defparameter +netwm-supported+
  44   '(:_NET_SUPPORTING_WM_CHECK
  45     :_NET_NUMBER_OF_DESKTOPS
  46     :_NET_DESKTOP_GEOMETRY
  47     :_NET_DESKTOP_VIEWPORT
  48     :_NET_CURRENT_DESKTOP
  49     :_NET_WM_WINDOW_TYPE
  50     :_NET_CLIENT_LIST)
  51   "Supported NETWM properties.
  52 Window types are in +WINDOW-TYPES+.")
  53
  54 (defparameter +netwm-window-types+
  55   '((:_NET_WM_WINDOW_TYPE_DESKTOP . :desktop)
  56     (:_NET_WM_WINDOW_TYPE_DOCK . :dock)
  57     (:_NET_WM_WINDOW_TYPE_TOOLBAR . :toolbar)
  58     (:_NET_WM_WINDOW_TYPE_MENU . :menu)
  59     (:_NET_WM_WINDOW_TYPE_UTILITY . :utility)
  60     (:_NET_WM_WINDOW_TYPE_SPLASH . :splash)
  61     (:_NET_WM_WINDOW_TYPE_DIALOG . :dialog)
  62     (:_NET_WM_WINDOW_TYPE_NORMAL . :normal))
  63   "Alist mapping NETWM window types to keywords.")
  64
  65
  66 (defmacro with-xlib-protect (&body body)
  67   "Prevent Xlib errors"
  68   `(handler-case
  69        (progn
  70          ,@body)
  71      ((or xlib:match-error xlib:window-error xlib:drawable-error) (c)
  72        ;;(dbg c))))
  73        ;;(declare (ignore c)))))
  74        (format t "~&Xlib-error: ~A~%Body:~%~A~%" c ',body)
  75       (force-output))))
  76        ;;(dbg c ',body))))
  77
  78 ;;(defmacro with-xlib-protect (&body body)
  79 ;;  "Prevent Xlib errors"
  80 ;;  `(progn
  81 ;;     ,@body))
  82
  83
  84
  85
  86
  87 ;;;
  88 ;;; Events management functions.
  89 ;;;
  90 (defparameter *unhandled-events* nil)
  91 (defparameter *current-event-mode* nil)
  92
  93 (eval-when (:compile-toplevel :load-toplevel :execute)
  94   (defun keyword->handle-event (mode keyword)
  95     (symb 'handle-event-fun "-" mode "-" keyword)))
  96
  97 (defun handle-event->keyword (symbol)
  98   (let* ((name (string-downcase (symbol-name symbol)))
  99          (pos (search "handle-event-fun-" name)))
 100     (when (and pos (zerop pos))
 101       (let ((pos-mod (search "mode" name)))
 102         (when pos-mod
 103           (values (intern (string-upcase (subseq name (+ pos-mod 5))) :keyword)
 104                   (subseq name (length "handle-event-fun-") (1- pos-mod))))))))
 105
 106
 107 (defmacro with-handle-event-symbol ((mode) &body body)
 108   "Bind symbol to all handle event functions available in mode"
 109   `(let ((pattern (format nil "handle-event-fun-~A" ,mode)))
 110      (with-all-internal-symbols (symbol :clfswm)
 111        (let ((pos (symbol-search pattern symbol)))
 112          (when (and pos (zerop pos))
 113            ,@body)))))
 114
 115
 116 (defun find-handle-event-function (&optional (mode ""))
 117   "Print all handle event functions available in mode"
 118   (with-handle-event-symbol (mode)
 119     (print symbol)))
 120
 121 (defun assoc-keyword-handle-event (mode)
 122   "Associate all keywords in mode to their corresponding handle event functions.
 123 For example: main-mode :key-press is bound to handle-event-fun-main-mode-key-press"
 124   (setf *current-event-mode* mode)
 125   (with-handle-event-symbol (mode)
 126     (let ((keyword (handle-event->keyword symbol)))
 127       (when (fboundp symbol)
 128         #+:event-debug
 129         (progn
 130           (format t "~&Associating: ~S with ~S~%" symbol keyword)
 131           (force-output))
 132         (setf (symbol-function keyword) (symbol-function symbol))))))
 133
 134 (defun unassoc-keyword-handle-event (&optional (mode ""))
 135   "Unbound all keywords from their corresponding handle event functions."
 136   (setf *current-event-mode* nil)
 137   (with-handle-event-symbol (mode)
 138     (let ((keyword (handle-event->keyword symbol)))
 139       (when (fboundp keyword)
 140         #+:event-debug
 141         (progn
 142           (format t "~&Unassociating: ~S  ~S~%" symbol keyword)
 143           (force-output))
 144         (fmakunbound keyword)))))
 145
 146 (defmacro define-handler (mode keyword args &body body)
 147   "Like a defun but with a name expanded as handle-event-fun-'mode'-'keyword'
 148 For example (define-handler main-mode :key-press (args) ...)
 149 Expand in handle-event-fun-main-mode-key-press"
 150   `(defun ,(keyword->handle-event mode keyword) (&rest event-slots &key #+:event-debug event-key ,@args &allow-other-keys)
 151      (declare (ignorable event-slots))
 152      #+:event-debug (print (list *current-event-mode* event-key))
 153      ,@body))
 154
 155
 156 (defun handle-event (&rest event-slots &key event-key &allow-other-keys)
 157   (with-xlib-protect
 158     (if (fboundp event-key)
 159         (apply event-key event-slots)
 160         #+:event-debug (pushnew (list *current-event-mode* event-key) *unhandled-events* :test #'equal)))
 161   t)
 162
 163
 164
 165
 166
 167 (defun parse-display-string (display)
 168   "Parse an X11 DISPLAY string and return the host and display from it."
 169   (let* ((colon (position #\: display))
 170          (host (subseq display 0 colon))
 171          (rest (subseq display (1+ colon)))
 172          (dot (position #\. rest))
 173          (num (parse-integer (subseq rest 0 dot))))
 174     (values host num)))
 175
 176
 177 (defun banish-pointer ()
 178   "Move the pointer to the lower right corner of the screen"
 179   (with-placement (*banish-pointer-placement* x y)
 180     (xlib:warp-pointer *root* x y)))
 181
 182
 183
 184 (defun window-state (win)
 185   "Get the state (iconic, normal, withdraw of a window."
 186   (first (xlib:get-property win :WM_STATE)))
 187
 188
 189 (defun set-window-state (win state)
 190   "Set the state (iconic, normal, withdrawn) of a window."
 191   (xlib:change-property win
 192                         :WM_STATE
 193                         (list state)
 194                         :WM_STATE
 195                         32))
 196
 197 (defsetf window-state set-window-state)
 198
 199
 200
 201 (defun window-hidden-p (window)
 202   (eql (window-state window) +iconic-state+))
 203
 204
 205 (defun null-size-window-p (window)
 206   (let ((hints (xlib:wm-normal-hints window)))
 207     (and hints
 208          (not (or (xlib:wm-size-hints-width hints)
 209                   (xlib:wm-size-hints-height hints)
 210                   (xlib:wm-size-hints-win-gravity hints)))
 211          (xlib:wm-size-hints-user-specified-position-p hints))))
 212
 213
 214
 215
 216
 217
 218 (defun unhide-window (window)
 219   (when window
 220     (with-xlib-protect
 221         (when (window-hidden-p window)
 222           (xlib:map-subwindows window)
 223           (xlib:map-window window)
 224           (setf (window-state window) +normal-state+
 225                 (xlib:window-event-mask window) *window-events*))))
 226   (xlib:display-finish-output *display*))
 227
 228
 229 (defun map-window (window)
 230   (when window
 231     (with-xlib-protect
 232       (xlib:map-subwindows window)
 233       (xlib:map-window window)
 234       (xlib:display-finish-output *display*))))
 235
 236 (defun delete-window (window)
 237   (send-client-message window :WM_PROTOCOLS
 238                        (xlib:intern-atom *display* "WM_DELETE_WINDOW"))
 239   (xlib:display-finish-output *display*))
 240
 241 (defun destroy-window (window)
 242   (xlib:kill-client *display* (xlib:window-id window))
 243   (xlib:display-finish-output *display*))
 244
 245
 246
 247
 248
 249
 250 ;;(defconstant +exwm-atoms+
 251 ;;  (list "_NET_SUPPORTED"              "_NET_CLIENT_LIST"
 252 ;;      "_NET_CLIENT_LIST_STACKING"   "_NET_NUMBER_OF_DESKTOPS"
 253 ;;      "_NET_CURRENT_DESKTOP"        "_NET_DESKTOP_GEOMETRY"
 254 ;;      "_NET_DESKTOP_VIEWPORT"       "_NET_DESKTOP_NAMES"
 255 ;;      "_NET_ACTIVE_WINDOW"          "_NET_WORKAREA"
 256 ;;      "_NET_SUPPORTING_WM_CHECK"    "_NET_VIRTUAL_ROOTS"
 257 ;;      "_NET_DESKTOP_LAYOUT"
 258 ;;
 259 ;;        "_NET_RESTACK_WINDOW"         "_NET_REQUEST_FRAME_EXTENTS"
 260 ;;        "_NET_MOVERESIZE_WINDOW"      "_NET_CLOSE_WINDOW"
 261 ;;        "_NET_WM_MOVERESIZE"
 262 ;;
 263 ;;      "_NET_WM_SYNC_REQUEST"        "_NET_WM_PING"
 264 ;;
 265 ;;      "_NET_WM_NAME"                "_NET_WM_VISIBLE_NAME"
 266 ;;      "_NET_WM_ICON_NAME"           "_NET_WM_VISIBLE_ICON_NAME"
 267 ;;      "_NET_WM_DESKTOP"             "_NET_WM_WINDOW_TYPE"
 268 ;;      "_NET_WM_STATE"               "_NET_WM_STRUT"
 269 ;;      "_NET_WM_ICON_GEOMETRY"       "_NET_WM_ICON"
 270 ;;      "_NET_WM_PID"                 "_NET_WM_HANDLED_ICONS"
 271 ;;      "_NET_WM_USER_TIME"           "_NET_FRAME_EXTENTS"
 272 ;;        ;; "_NET_WM_MOVE_ACTIONS"
 273 ;;
 274 ;;      "_NET_WM_WINDOW_TYPE_DESKTOP" "_NET_WM_STATE_MODAL"
 275 ;;      "_NET_WM_WINDOW_TYPE_DOCK"    "_NET_WM_STATE_STICKY"
 276 ;;      "_NET_WM_WINDOW_TYPE_TOOLBAR" "_NET_WM_STATE_MAXIMIZED_VERT"
 277 ;;      "_NET_WM_WINDOW_TYPE_MENU"    "_NET_WM_STATE_MAXIMIZED_HORZ"
 278 ;;      "_NET_WM_WINDOW_TYPE_UTILITY" "_NET_WM_STATE_SHADED"
 279 ;;      "_NET_WM_WINDOW_TYPE_SPLASH"  "_NET_WM_STATE_SKIP_TASKBAR"
 280 ;;      "_NET_WM_WINDOW_TYPE_DIALOG"  "_NET_WM_STATE_SKIP_PAGER"
 281 ;;      "_NET_WM_WINDOW_TYPE_NORMAL"  "_NET_WM_STATE_HIDDEN"
 282 ;;                                    "_NET_WM_STATE_FULLSCREEN"
 283 ;;                                    "_NET_WM_STATE_ABOVE"
 284 ;;                                    "_NET_WM_STATE_BELOW"
 285 ;;                                    "_NET_WM_STATE_DEMANDS_ATTENTION"
 286 ;;
 287 ;;      "_NET_WM_ALLOWED_ACTIONS"
 288 ;;      "_NET_WM_ACTION_MOVE"
 289 ;;      "_NET_WM_ACTION_RESIZE"
 290 ;;      "_NET_WM_ACTION_SHADE"
 291 ;;      "_NET_WM_ACTION_STICK"
 292 ;;      "_NET_WM_ACTION_MAXIMIZE_HORZ"
 293 ;;      "_NET_WM_ACTION_MAXIMIZE_VERT"
 294 ;;      "_NET_WM_ACTION_FULLSCREEN"
 295 ;;      "_NET_WM_ACTION_CHANGE_DESKTOP"
 296 ;;      "_NET_WM_ACTION_CLOSE"
 297 ;;
 298 ;;      ))
 299 ;;
 300 ;;
 301 ;;(defun intern-atoms (display)
 302 ;;  (declare (type xlib:display display))
 303 ;;  (mapcar #'(lambda (atom-name) (xlib:intern-atom display atom-name))
 304 ;;        +exwm-atoms+)
 305 ;;  (values))
 306 ;;
 307 ;;
 308 ;;
 309 ;;(defun get-atoms-property (window property-atom atom-list-p)
 310 ;;  "Returns a list of atom-name (if atom-list-p is t) otherwise returns
 311 ;;   a list of atom-id."
 312 ;;  (xlib:get-property window property-atom
 313 ;;                   :transform (when atom-list-p
 314 ;;                                (lambda (id)
 315 ;;                                  (xlib:atom-name (xlib:drawable-display window) id)))))
 316 ;;
 317 ;;(defun set-atoms-property (window atoms property-atom &key (mode :replace))
 318 ;;  "Sets the property designates by `property-atom'. ATOMS is a list of atom-id
 319 ;;   or a list of keyword atom-names."
 320 ;;  (xlib:change-property window property-atom atoms :ATOM 32
 321 ;;                      :mode mode
 322 ;;                      :transform (unless (integerp (car atoms))
 323 ;;                                   (lambda (atom-key)
 324 ;;                                     (xlib:find-atom (xlib:drawable-display window) atom-key)))))
 325 ;;
 326 ;;
 327 ;;
 328 ;;
 329 ;;(defun net-wm-state (window)
 330 ;;  (get-atoms-property window :_NET_WM_STATE t))
 331 ;;
 332 ;;(defsetf net-wm-state (window &key (mode :replace)) (states)
 333 ;;  `(set-atoms-property ,window ,states :_NET_WM_STATE :mode ,mode))
 334
 335
 336 (defun hide-window (window)
 337   (when window
 338     (with-xlib-protect
 339       (setf (window-state window) +iconic-state+
 340             (xlib:window-event-mask window) (remove :structure-notify *window-events*))
 341       (xlib:unmap-window window)
 342       (setf (xlib:window-event-mask window) *window-events*)))
 343   (xlib:display-finish-output *display*))
 344
 345
 346
 347 (defun window-type (window)
 348   "Return one of :desktop, :dock, :toolbar, :utility, :splash,
 349 :dialog, :transient, :maxsize and :normal."
 350   (or (and (let ((hints (xlib:wm-normal-hints window)))
 351              (and hints (or (xlib:wm-size-hints-max-width hints)
 352                             (xlib:wm-size-hints-max-height hints)
 353                             (xlib:wm-size-hints-min-aspect hints)
 354                             (xlib:wm-size-hints-max-aspect hints))))
 355            :maxsize)
 356       (let ((net-wm-window-type (xlib:get-property window :_NET_WM_WINDOW_TYPE)))
 357         (when net-wm-window-type
 358           (dolist (type-atom net-wm-window-type)
 359             (when (assoc (xlib:atom-name *display* type-atom) +netwm-window-types+)
 360               (return (cdr (assoc (xlib:atom-name *display* type-atom) +netwm-window-types+)))))))
 361       (and (xlib:get-property window :WM_TRANSIENT_FOR)
 362            :transient)
 363       :normal))
 364
 365
 366
 367
 368
 369 ;;; Stolen from Eclipse
 370 (defun send-configuration-notify (window x y w h bw)
 371   "Send a synthetic configure notify event to the given window (ICCCM 4.1.5)"
 372   (xlib:send-event window :configure-notify (xlib:make-event-mask :structure-notify)
 373                    :event-window window
 374                    :window window
 375                    :x x :y y
 376                    :width w
 377                    :height h
 378                    :border-width bw
 379                    :propagate-p nil))
 380
 381
 382
 383 (defun send-client-message (window type &rest data)
 384   "Send a client message to a client's window."
 385   (xlib:send-event window
 386                    :client-message nil
 387                    :window window
 388                    :type type
 389                    :format 32
 390                    :data data))
 391
 392
 393
 394
 395
 396 (defun raise-window (window)
 397   "Map the window if needed and bring it to the top of the stack. Does not affect focus."
 398   (when window
 399     (with-xlib-protect
 400       (when (window-hidden-p window)
 401         (unhide-window window))
 402       (setf (xlib:window-priority window) :top-if)))
 403   (xlib:display-finish-output *display*))
 404
 405 (defun focus-window (window)
 406   "Give the window focus."
 407   (when window
 408     (with-xlib-protect
 409       (xlib:set-input-focus *display* window :parent)))
 410   (xlib:display-finish-output *display*))
 411
 412
 413
 414
 415
 416
 417
 418 (defun no-focus ()
 419   "don't focus any window but still read keyboard events."
 420   (xlib:set-input-focus *display* *no-focus-window* :pointer-root)
 421   (xlib:display-finish-output *display*))
 422
 423
 424
 425
 426 (let ((cursor-font nil)
 427       (cursor nil)
 428       (pointer-grabbed nil))
 429   (defun free-grab-pointer ()
 430     (when cursor
 431       (xlib:free-cursor cursor)
 432       (setf cursor nil))
 433     (when cursor-font
 434       (xlib:close-font cursor-font)
 435       (setf cursor-font nil)))
 436
 437   (defun xgrab-init-pointer ()
 438     (setf pointer-grabbed nil))
 439
 440     (defun xgrab-pointer-p ()
 441       pointer-grabbed)
 442
 443     (defun xgrab-pointer (root cursor-char cursor-mask-char
 444                           &optional (pointer-mask '(:enter-window :pointer-motion
 445                                                     :button-press :button-release)) owner-p)
 446       "Grab the pointer and set the pointer shape."
 447       (when pointer-grabbed
 448         (xungrab-pointer))
 449       (setf pointer-grabbed t)
 450       (let* ((white (xlib:make-color :red 1.0 :green 1.0 :blue 1.0))
 451              (black (xlib:make-color :red 0.0 :green 0.0 :blue 0.0)))
 452         (cond (cursor-char
 453                (setf cursor-font (xlib:open-font *display* "cursor")
 454                      cursor (xlib:create-glyph-cursor :source-font cursor-font
 455                                                       :source-char (or cursor-char 68)
 456                                                       :mask-font cursor-font
 457                                                       :mask-char (or cursor-mask-char 69)
 458                                                       :foreground black
 459                                                       :background white))
 460                (xlib:grab-pointer root pointer-mask
 461                                        :owner-p owner-p  :sync-keyboard-p nil :sync-pointer-p nil :cursor cursor))
 462               (t
 463                (xlib:grab-pointer root pointer-mask
 464                                        :owner-p owner-p  :sync-keyboard-p nil :sync-pointer-p nil)))))
 465
 466     (defun xungrab-pointer ()
 467       "Remove the grab on the cursor and restore the cursor shape."
 468       (setf pointer-grabbed nil)
 469       (xlib:ungrab-pointer *display*)
 470       (free-grab-pointer)))
 471
 472
 473 (let ((keyboard-grabbed nil))
 474   (defun xgrab-init-keyboard ()
 475     (setf keyboard-grabbed nil))
 476
 477   (defun xgrab-keyboard-p ()
 478     keyboard-grabbed)
 479
 480   (defun xgrab-keyboard (root)
 481     (setf keyboard-grabbed t)
 482     (xlib:grab-keyboard root :owner-p nil :sync-keyboard-p nil :sync-pointer-p nil))
 483
 484
 485   (defun xungrab-keyboard ()
 486     (setf keyboard-grabbed nil)
 487     (xlib:ungrab-keyboard *display*)))
 488
 489
 490
 491
 492
 493
 494 (defun ungrab-all-buttons (window)
 495   (xlib:ungrab-button window :any :modifiers :any))
 496
 497 (defun grab-all-buttons (window)
 498   (ungrab-all-buttons window)
 499   (xlib:grab-button window :any '(:button-press :button-release :pointer-motion)
 500                     :modifiers :any
 501                     :owner-p nil
 502                     :sync-pointer-p t
 503                     :sync-keyboard-p nil))
 504
 505 (defun ungrab-all-keys (window)
 506   (xlib:ungrab-key window :any :modifiers :any))
 507
 508
 509 (defun stop-button-event ()
 510   (xlib:allow-events *display* :sync-pointer))
 511
 512 (defun replay-button-event ()
 513   (xlib:allow-events *display* :replay-pointer))
 514
 515
 516
 517
 518
 519
 520
 521
 522
 523 ;;; Mouse action on window
 524 (let (add-fn add-arg dx dy window)
 525   (define-handler move-window-mode :motion-notify (root-x root-y)
 526     (unless (compress-motion-notify)
 527       (setf (xlib:drawable-x window) (+ root-x dx)
 528             (xlib:drawable-y window) (+ root-y dy))
 529       (when add-fn
 530         (apply add-fn add-arg))))
 531
 532   (define-handler move-window-mode :button-release ()
 533     (throw 'exit-move-window-mode nil))
 534
 535   (defun move-window (orig-window orig-x orig-y &optional additional-fn additional-arg)
 536     (setf window orig-window
 537           add-fn additional-fn
 538           add-arg additional-arg
 539           dx (- (xlib:drawable-x window) orig-x)
 540           dy (- (xlib:drawable-y window) orig-y))
 541     (raise-window window)
 542     (let ((pointer-grabbed-p (xgrab-pointer-p)))
 543       (unless pointer-grabbed-p
 544         (xgrab-pointer *root* nil nil))
 545       (when additional-fn
 546         (apply additional-fn additional-arg))
 547       (generic-mode 'move-window-mode 'exit-move-window-mode
 548                     :original-mode '(main-mode))
 549       (unless pointer-grabbed-p
 550         (xungrab-pointer)))))
 551
 552
 553 (let (add-fn add-arg window
 554              o-x o-y
 555              orig-width orig-height
 556              min-width max-width
 557              min-height max-height)
 558   (define-handler resize-window-mode :motion-notify (root-x root-y)
 559     (unless (compress-motion-notify)
 560       (setf (xlib:drawable-width window) (min (max (+ orig-width (- root-x o-x)) 10 min-width) max-width)
 561             (xlib:drawable-height window) (min (max (+ orig-height (- root-y o-y)) 10 min-height) max-height))
 562       (when add-fn
 563         (apply add-fn add-arg))))
 564
 565   (define-handler resize-window-mode :button-release ()
 566     (throw 'exit-resize-window-mode nil))
 567
 568   (defun resize-window (orig-window orig-x orig-y &optional additional-fn additional-arg)
 569     (let* ((pointer-grabbed-p (xgrab-pointer-p))
 570            (hints (xlib:wm-normal-hints orig-window)))
 571       (setf window orig-window
 572             add-fn additional-fn
 573             add-arg additional-arg
 574             o-x orig-x
 575             o-y orig-y
 576             orig-width (xlib:drawable-width window)
 577             orig-height (xlib:drawable-height window)
 578             min-width (or (and hints (xlib:wm-size-hints-min-width hints)) 0)
 579             min-height (or (and hints (xlib:wm-size-hints-min-height hints)) 0)
 580             max-width (or (and hints (xlib:wm-size-hints-max-width hints)) most-positive-fixnum)
 581             max-height (or (and hints (xlib:wm-size-hints-max-height hints)) most-positive-fixnum))
 582       (raise-window window)
 583       (unless pointer-grabbed-p
 584         (xgrab-pointer *root* nil nil))
 585       (when additional-fn
 586         (apply additional-fn additional-arg))
 587       (generic-mode 'resize-window-mode 'exit-resize-window-mode
 588                     :original-mode '(main-mode))
 589       (unless pointer-grabbed-p
 590         (xungrab-pointer)))))
 591
 592
 593 (define-handler wait-mouse-button-release-mode :button-release ()
 594   (throw 'exit-wait-mouse-button-release-mode nil))
 595
 596 (defun wait-mouse-button-release (&optional cursor-char cursor-mask-char)
 597   (let ((pointer-grabbed-p (xgrab-pointer-p)))
 598     (unless pointer-grabbed-p
 599       (xgrab-pointer *root* cursor-char cursor-mask-char))
 600     (generic-mode 'wait-mouse-button-release 'exit-wait-mouse-button-release-mode)
 601     (unless pointer-grabbed-p
 602       (xungrab-pointer))))
 603
 604
 605
 606
 607 (let ((color-hash (make-hash-table :test 'equal)))
 608   (defun get-color (color)
 609     (multiple-value-bind (val foundp)
 610         (gethash color color-hash)
 611       (if foundp
 612           val
 613           (setf (gethash color color-hash)
 614                 (xlib:alloc-color (xlib:screen-default-colormap *screen*) color))))))
 615
 616
 617
 618 (defgeneric ->color (color))
 619
 620 (defmethod ->color ((color-name string))
 621   color-name)
 622
 623 (defmethod ->color ((color integer))
 624   (labels ((hex->float (color)
 625              (/ (logand color #xFF) 256.0)))
 626     (xlib:make-color :blue (hex->float color)
 627                      :green (hex->float (ash color -8))
 628                      :red (hex->float  (ash color -16)))))
 629
 630 (defmethod ->color ((color list))
 631   (destructuring-bind (red green blue) color
 632     (xlib:make-color :blue red :green green :red blue)))
 633
 634 (defmethod ->color ((color xlib:color))
 635   color)
 636
 637 (defmethod ->color (color)
 638   (format t "Wrong color type: ~A~%" color)
 639   "White")
 640
 641
 642 (defun color->rgb (color)
 643   (multiple-value-bind (r g b)
 644       (xlib:color-rgb color)
 645     (+ (ash (round (* 256 r)) +16)
 646        (ash (round (* 256 g)) +8)
 647        (round (* 256 b)))))
 648
 649
 650
 651
 652
 653 (defmacro my-character->keysyms (ch)
 654   "Convert a char to a keysym"
 655   ;; XLIB:CHARACTER->KEYSYMS should probably be implemented in NEW-CLX
 656   ;; some day.  Or just copied from MIT-CLX or some other CLX
 657   ;; implementation (see translate.lisp and keysyms.lisp).  For now,
 658   ;; we do like this.  It suffices for modifiers and ASCII symbols.
 659   (if (fboundp 'xlib:character->keysyms)
 660       `(xlib:character->keysyms ,ch)
 661       `(list
 662        (case ,ch
 663          (:character-set-switch #xFF7E)
 664          (:left-shift #xFFE1)
 665          (:right-shift #xFFE2)
 666          (:left-control #xFFE3)
 667          (:right-control #xFFE4)
 668          (:caps-lock #xFFE5)
 669          (:shift-lock #xFFE6)
 670          (:left-meta #xFFE7)
 671          (:right-meta #xFFE8)
 672          (:left-alt #xFFE9)
 673          (:right-alt #xFFEA)
 674          (:left-super #xFFEB)
 675          (:right-super #xFFEC)
 676          (:left-hyper #xFFED)
 677          (:right-hyper #xFFEE)
 678          (t
 679           (etypecase ,ch
 680             (character
 681              ;; Latin-1 characters have their own value as keysym
 682              (if (< 31 (char-code ,ch) 256)
 683                  (char-code ,ch)
 684                  (error "Don't know how to get keysym from ~A" ,ch)))))))))
 685
 686
 687
 688
 689 (defun char->keycode (char)
 690   "Convert a character to a keycode"
 691   (xlib:keysym->keycodes *display* (first (my-character->keysyms char))))
 692
 693
 694 (defun keycode->char (code state)
 695   (xlib:keysym->character *display* (xlib:keycode->keysym *display* code 0) state))
 696
 697 (defun modifiers->state (modifier-list)
 698   (apply #'xlib:make-state-mask modifier-list))
 699
 700 (defun state->modifiers (state)
 701   (xlib:make-state-keys state))
 702
 703 (defun keycode->keysym (code modifiers)
 704   (xlib:keycode->keysym *display* code (cond  ((member :shift modifiers) 1)
 705                                               ((member :mod-5 modifiers) 2)
 706                                               (t 0))))
 707
 708
 709 (defmacro with-grab-keyboard-and-pointer ((cursor mask old-cursor old-mask) &body body)
 710   `(let ((pointer-grabbed (xgrab-pointer-p))
 711          (keyboard-grabbed (xgrab-keyboard-p)))
 712      (xgrab-pointer *root* ,cursor ,mask)
 713      (unless keyboard-grabbed
 714        (xgrab-keyboard *root*))
 715      (unwind-protect
 716           (progn
 717             ,@body)
 718        (if pointer-grabbed
 719            (xgrab-pointer *root* ,old-cursor ,old-mask)
 720            (xungrab-pointer))
 721        (unless keyboard-grabbed
 722          (xungrab-keyboard)))))
 723
 724
 725
 726
 727
 728
 729 (let ((modifier-list nil))
 730   (defun init-modifier-list ()
 731     (dolist (name '("Shift_L" "Shift_R" "Control_L" "Control_R"
 732                     "Alt_L" "Alt_R" "Meta_L" "Meta_R" "Hyper_L" "Hyper_R"
 733                     "Mode_switch" "script_switch" "ISO_Level3_Shift"
 734                     "Caps_Lock" "Scroll_Lock" "Num_Lock"))
 735       (awhen (xlib:keysym->keycodes *display* (keysym-name->keysym name))  ;; PHIL: todo here
 736         (push it modifier-list))))
 737
 738   (defun modifier-p (code)
 739     (member code modifier-list)))
 740
 741 (defun wait-no-key-or-button-press ()
 742   (with-grab-keyboard-and-pointer (66 67 66 67)
 743     (loop
 744        (let ((key (loop for k across (xlib:query-keymap *display*)
 745                      for code from 0
 746                      when (and (plusp k) (not (modifier-p code)))
 747                      return t))
 748              (button (loop for b in (xlib:make-state-keys (nth-value 4 (xlib:query-pointer *root*)))
 749                         when (member b '(:button-1 :button-2 :button-3 :button-4 :button-5))
 750                         return t)))
 751          (when (and (not key) (not button))
 752            (loop while (xlib:event-case (*display* :discard-p t :peek-p nil :timeout 0)
 753                          (:motion-notify () t)
 754                          (:key-press () t)
 755                          (:key-release () t)
 756                          (:button-press () t)
 757                          (:button-release () t)
 758                          (t nil)))
 759            (return))))))
 760
 761
 762 (defun wait-a-key-or-button-press ()
 763   (with-grab-keyboard-and-pointer (24 25 66 67)
 764     (loop
 765      (let ((key (loop for k across (xlib:query-keymap *display*)
 766                       unless (zerop k) return t))
 767            (button (loop for b in (xlib:make-state-keys (nth-value 4 (xlib:query-pointer *root*)))
 768                          when (member b '(:button-1 :button-2 :button-3 :button-4 :button-5))
 769                          return t)))
 770        (when (or key button)
 771          (return))))))
 772
 773
 774
 775 (defun compress-motion-notify ()
 776   (when *have-to-compress-notify*
 777     (loop while (xlib:event-cond (*display* :timeout 0)
 778                   (:motion-notify () t)))))
 779
 780
 781 (defun display-all-cursors (&optional (display-time 1))
 782   "Display all X11 cursors for display-time seconds"
 783   (loop for i from 0 to 152 by 2
 784      do (xgrab-pointer *root* i (1+ i))
 785        (dbg i)
 786        (sleep display-time)
 787        (xungrab-pointer)))
 788
 789
 790
 791
 792 ;;; Double buffering tools
 793 (defun clear-pixmap-buffer (window gc)
 794   (rotatef (xlib:gcontext-foreground gc) (xlib:gcontext-background gc))
 795   (xlib:draw-rectangle *pixmap-buffer* gc
 796                        0 0 (xlib:drawable-width window) (xlib:drawable-height window)
 797                        t)
 798   (rotatef (xlib:gcontext-foreground gc) (xlib:gcontext-background gc)))
 799
 800 (defun copy-pixmap-buffer (window gc)
 801   (xlib:copy-area *pixmap-buffer* gc
 802                   0 0 (xlib:drawable-width window) (xlib:drawable-height window)
 803                   window 0 0))
 804
 805
 806 (defun is-a-key-pressed-p ()
 807   (loop for k across (xlib:query-keymap *display*)
 808      when (plusp k)
 809      return t))
 810