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;; anim-outline.jl -- simple window animations
;; $Id: outline.jl,v 1.8 2002/03/24 10:12:26 jsh Exp $
;; Copyright (C) 2000 John Harper <john@dcs.warwick.ac.uk>
;; This file is part of sawmill.
;; sawmill is free software; you can redistribute it and/or modify it
;; under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.
;; sawmill is distributed in the hope that it will be useful, but
;; WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with sawmill; see the file COPYING. If not, write to
;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
(define-structure sawfish.wm.animation.outline
(export make-outline-animator)
(open rep
sawfish.wm.misc
sawfish.wm.events
sawfish.wm.windows
sawfish.wm.window-anim
sawfish.wm.util.window-outline
rep.io.timers)
(define-structure-alias anim-outline sawfish.wm.animation.outline)
(defvar anim-outline-icon-coords (cons (screen-width) (screen-height)))
(defvar anim-outline-steps 16)
(defvar anim-outline-delay 20)
(define (anim-outline-run w mode initial-coords initial-dims
final-coords final-dims)
(let ((step 0)
(x-step (quotient (- (car final-coords) (car initial-coords))
anim-outline-steps))
(y-step (quotient (- (cdr final-coords) (cdr initial-coords))
anim-outline-steps))
(w-step (quotient (- (car final-dims) (car initial-dims))
anim-outline-steps))
(h-step (quotient (- (cdr final-dims) (cdr initial-dims))
anim-outline-steps))
(coords (cons (car initial-coords) (cdr initial-coords)))
(dims (cons (car initial-dims) (cdr initial-dims)))
timer)
(define (stop)
(delete-timer timer)
(record-window-animator w nil)
(ungrab-server))
(define (protect fun)
(call-with-exception-handler fun (lambda (ex)
(stop)
(raise-exception ex))))
(define (clear)
(unless (zerop step)
(protect (lambda ()
(erase-window-outline mode (car coords) (cdr coords)
(car dims) (cdr dims))))))
(define (frame)
(protect (lambda ()
(clear)
(if (>= step anim-outline-steps)
(stop)
(rplaca coords (+ (car coords) x-step))
(rplacd coords (+ (cdr coords) y-step))
(rplaca dims (+ (car dims) w-step))
(rplacd dims (+ (cdr dims) h-step))
(draw-window-outline mode (car coords) (cdr coords)
(car dims) (cdr dims))
(setq step (1+ step))
(set-timer timer)))))
(define (animator win op)
(declare (unused win))
(when (eq op 'stop)
(clear)
(stop)))
;; kludged.. there may be Expose events waiting
(accept-x-input)
(grab-server)
(record-window-animator w animator)
(setq timer (make-timer frame nil anim-outline-delay))))
(define (anim-outline-entry mode w op #!optional action)
(when (eq op 'start)
(case action
((iconified)
(if (window-get w 'iconified)
(anim-outline-run w mode (window-position w)
(window-frame-dimensions w)
(or (window-get w 'icon-position)
anim-outline-icon-coords)
'(1 . 1)))))))
(define (make-outline-animator mode)
(lambda (w op #!optional action)
(anim-outline-entry mode w op action)))
(define wireframe-animator (make-outline-animator 'box))
(define solid-animator (make-outline-animator 'solid))
;;###autoload
(define-window-animator 'wireframe wireframe-animator)
(define-window-animator 'solid solid-animator))
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