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Revision 1.6 - (show annotations)
Tue Sep 5 11:33:18 2000 UTC (13 years, 7 months ago) by cvs
Branch: MAIN
Changes since 1.5: +2 -1 lines
Added support for getting the value of an environment variable in CLISP.
1 ;;; -*- Mode: Lisp; Package: CLIM-INTERNALS -*-
2
3 ;;; (c) copyright 1998,1999,2000 by Michael McDonald (mikemac@mikemac.com)
4 ;;; (c) copyright 2000 by
5 ;;; Iban Hatchondo (hatchond@emi.u-bordeaux.fr)
6 ;;; Julien Boninfante (boninfan@emi.u-bordeaux.fr)
7 ;;; Robert Strandh (strandh@labri.u-bordeaux.fr)
8
9 ;;; This library is free software; you can redistribute it and/or
10 ;;; modify it under the terms of the GNU Library General Public
11 ;;; License as published by the Free Software Foundation; either
12 ;;; version 2 of the License, or (at your option) any later version.
13 ;;;
14 ;;; This library is distributed in the hope that it will be useful,
15 ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
16 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 ;;; Library General Public License for more details.
18 ;;;
19 ;;; You should have received a copy of the GNU Library General Public
20 ;;; License along with this library; if not, write to the
21 ;;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
22 ;;; Boston, MA 02111-1307 USA.
23
24 (in-package :CLIM-INTERNALS)
25
26 (eval-when (:compile-toplevel :load-toplevel :execute)
27 (defun parse-display-variable (s)
28 "Given a string in standard X11 display format host-name:display-number:screen-number,
29 returns a list in CLIM X11 format (:x11 :host host-name :display-id display-number
30 :screen-id screen-number)."
31 (let* ((colon (position #\: s))
32 (dot (position #\. s :start colon))
33 (host-name (if (zerop colon) "" (subseq s 0 colon)))
34 (display-number (parse-integer s :start (1+ colon) :end dot))
35 (screen-number (if dot (parse-integer s :start (1+ dot)) 0)))
36 (list :x11 :host host-name :display-id display-number :screen-id screen-number)))
37
38 (defun get-environment-variable (string)
39 #+excl (sys:getenv string)
40 #+cmu (cdr (assoc string ext:*environment-list* :test #'string=))
41 #+clisp (sys::getenv (string string))
42 #-(or excl cmu clisp) (error "GET-ENVIRONMENT-VARIABLE not implemented")))
43
44 (defvar *default-server-path*
45 #+unix (parse-display-variable (get-environment-variable "DISPLAY")))
46
47 (defvar *all-ports* nil)
48
49 (defclass port ()
50 ((server-path :initform nil
51 :initarg :server-path
52 :reader port-server-path)
53 (properties :initform nil
54 :initarg :properties)
55 (grafts :initform nil
56 :accessor port-grafts)
57 (frame-managers :initform nil
58 :reader frame-managers)
59 (sheet->mirror :initform (make-hash-table :test #'eq))
60 (mirror->sheet :initform (make-hash-table :test #'eq))
61 (keyboard-input-focus :initform nil
62 :initarg :keyboard-input-focus
63 :accessor port-keyboard-input-focus)
64 )
65 )
66
67 (defun find-port (&key (server-path *default-server-path*))
68 (loop for port in *all-ports*
69 if (equal server-path (port-server-path port))
70 do (return port)
71 finally (let ((port-type (get (first server-path) :port-type))
72 port)
73 (if (null port-type)
74 (error "Don't know how to make a port of type ~S" server-path))
75 (setq port (funcall 'make-instance port-type :server-path server-path))
76 (push port *all-ports*)
77 (return port))))
78
79 (defmethod port-lookup-mirror ((port port) (sheet sheet))
80 (gethash sheet (slot-value port 'sheet->mirror)))
81
82 (defmethod port-lookup-sheet ((port port) mirror)
83 (gethash mirror (slot-value port 'mirror->sheet)))
84
85 (defmethod port-register-mirror ((port port) (sheet sheet) mirror)
86 (setf (gethash sheet (slot-value port 'sheet->mirror)) mirror)
87 (setf (gethash mirror (slot-value port 'mirror->sheet)) sheet)
88 nil)
89
90 (defmethod port-unregister-mirror ((port port) (sheet sheet) mirror)
91 (remhash sheet (slot-value port 'sheet->mirror))
92 (remhash mirror (slot-value port 'mirror->sheet))
93 nil)
94
95 ;(defmethod realize-first-mirrors ((port port) (sheet sheet)) ;temporary medecine
96 ; (loop for child in (sheet-children sheet)
97 ; do (realize-mirror port child)))
98
99 (defmethod realize-mirror ((port port) (sheet mirrored-sheet))
100 (error "Don't know how to realize the mirror of a generic mirrored-sheet"))
101
102 ;(defmethod unrealize-mirror ((port port) (sheet sheet))
103 ; (loop for child in (sheet-children sheet)
104 ; do (unrealize-mirror port child)))
105
106 (defmethod unrealize-mirror ((port port) (sheet mirrored-sheet))
107 (error "Don't know how to unrealize the mirror of a generic mirrored-sheet"))
108
109 (defmethod port-properties ((port port) indicator)
110 (with-slots (properties) port
111 (getf properties indicator)))
112
113 (defmethod (setf port-properties) (value (port port) indicator)
114 (with-slots (properties) port
115 (setf (getf properties indicator) value)))
116
117 (defmethod get-next-event ((port port) &key wait-function timeout)
118 (declare (ignore wait-function timeout))
119 (error "Calling GET-NEXT-EVENT on a PORT protocol class"))
120
121 (defmethod process-next-event ((port port) &key wait-function timeout)
122 (let ((event (get-next-event port :wait-function wait-function :timeout timeout)))
123 (cond
124 ((null event) nil)
125 ((eq event :timeout) (values nil :timeout))
126 (t
127 (distribute-event port event)
128 t))))
129
130 (defmethod distribute-event ((port port) event)
131 (cond
132 ((typep event 'keyboard-event)
133 (dispatch-event (or (port-keyboard-input-focus port)
134 (event-sheet event)) event))
135 ((typep event 'window-event)
136 ; (dispatch-event (window-event-mirrored-sheet event) event))
137 (dispatch-event (event-sheet event) event))
138 ((typep event 'pointer-event)
139 (dispatch-event (event-sheet event) event))
140 ((typep event 'timer-event)
141 (error "Where do we send timer-events?"))
142 (t
143 (error "Unknown event ~S received in DISTRIBUTE-EVENT" event))))
144
145 (defun map-over-ports (function)
146 (mapc function *all-ports*))
147
148 (defmethod restart-port ((port port))
149 (reset-watcher port :restart)
150 nil)
151
152 (defmethod destroy-port ((port port))
153 (reset-watcher port :destroy)
154 (setf *all-ports* (remove port *all-ports*)))
155
156 (defmethod add-watcher ((port port) watcher)
157 (declare (ignore watcher))
158 nil)
159
160 (defmethod delete-watcher ((port port) watcher)
161 (declare (ignore watcher))
162 nil)
163
164 (defmethod reset-watcher ((port port) how)
165 (declare (ignore how))
166 nil)
167
168 (defmethod make-graft ((port port) &key (orientation :default) (units :device))
169 (let ((graft (make-instance 'graft
170 :port port :mirror nil
171 :orientation orientation :units units)))
172 (push graft (port-grafts port))
173 graft))
174
175 (defmethod make-medium ((port port) sheet)
176 (make-instance 'medium :port port :graft (graft sheet) :sheet sheet))
177
178 (defmethod line-height ((port port) text-style)
179 (declare (ignore text-style))
180 (error "LINE-HEIGHT fell thru to a generic PORT"))
181
182 (defmethod character-width ((port port) char text-style)
183 (declare (ignore char text-style))
184 (error "CHARACTER-WIDTH fell thru to a generic PORT"))
185
186 (defmethod beep ((port port))
187 )
188
189 (defmethod port-allocate-pixmap ((port port) sheet width height)
190 (declare (ignore sheet width height))
191 (error "ALLOCATE-PIXMAP is not implemented for PORTs"))
192
193 (defmethod port-deallocate-pixmap ((port port) pixmap)
194 (declare (ignore pixmap))
195 (error "DEALLOCATE-PIXMAP is not implemented for PORTs"))
196
197 (defmethod port-copy-to-pixmap ((port port) sheet from-x from-y width height
198 pixmap to-x to-y)
199 (declare (ignore sheet from-x from-y width height pixmap to-x to-y))
200 (error "COPY-TO-PIXMAP is not implemented for PORTs"))
201
202 (defmethod port-copy-area ((port port) sheet from-x from-y width height to-x to-y)
203 (declare (ignore sheet from-x from-y width height to-x to-y))
204 (error "COPY-AREA is not implemented for PORTs"))
205

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