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1 | ;; Common Lisp bindings for GTK+ v2.0 |
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2 | ;; Copyright (C) 1999-2001 Espen S. Johnsen <esj@stud.cs.uit.no> |
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3 | ;; |
4 | ;; This library is free software; you can redistribute it and/or |
5 | ;; modify it under the terms of the GNU Lesser General Public |
6 | ;; License as published by the Free Software Foundation; either |
7 | ;; version 2 of the License, or (at your option) any later version. |
8 | ;; |
9 | ;; This library is distributed in the hope that it will be useful, |
10 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | ;; Lesser General Public License for more details. |
13 | ;; |
14 | ;; You should have received a copy of the GNU Lesser General Public |
15 | ;; License along with this library; if not, write to the Free Software |
16 | ;; Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
17 | |
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18 | ;; $Id: gtkobject.lisp,v 1.9 2001-05-29 16:00:52 espen Exp $ |
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19 | |
20 | |
21 | (in-package "GTK") |
22 | |
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23 | |
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24 | ;;;; Misc utils |
25 | |
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26 | ; (defun name-to-string (name) |
27 | ; (substitute #\_ #\- (string-downcase (string name)))) |
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28 | |
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29 | ; (defun string-to-name (name &optional (package "KEYWORD")) |
30 | ; (intern (substitute #\- #\_ (string-upcase name)) package)) |
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31 | |
32 | |
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33 | ;;; Argument stuff - to be removed soon |
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34 | |
35 | (deftype arg () 'pointer) |
36 | |
37 | (defconstant +arg-type-offset+ 0) |
38 | (defconstant +arg-name-offset+ 4) |
39 | (defconstant +arg-value-offset+ 8) |
40 | (defconstant +arg-size+ 16) |
41 | |
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42 | (defbinding arg-new () arg |
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43 | (type type-number)) |
44 | |
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45 | (defbinding %arg-free () nil |
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46 | (arg arg) |
47 | (free-contents boolean)) |
48 | |
49 | (defun arg-free (arg free-contents &optional alien) |
50 | (cond |
51 | (alien (%arg-free arg free-contents)) |
52 | (t |
53 | (unless (null-pointer-p arg) |
54 | (when free-contents |
55 | (funcall |
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56 | (intern-destroy-function (type-from-number (arg-type arg))) |
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57 | arg +arg-value-offset+)) |
58 | (deallocate-memory arg))))) |
59 | |
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60 | (defbinding %arg-reset () nil |
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61 | (arg arg)) |
62 | |
63 | (defun arg-name (arg) |
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64 | (funcall (intern-reader-function 'string) arg +arg-name-offset+)) |
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65 | |
66 | (defun (setf arg-name) (name arg) |
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67 | (funcall (intern-writer-function 'string) name arg +arg-name-offset+) |
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68 | name) |
69 | |
70 | (defun arg-type (arg) |
71 | (system:sap-ref-32 arg +arg-type-offset+)) |
72 | |
73 | (defun (setf arg-type) (type arg) |
74 | (setf (system:sap-ref-32 arg +arg-type-offset+) type)) |
75 | |
76 | (defun arg-value (arg &optional (type (type-from-number (arg-type arg)))) |
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77 | (funcall (intern-reader-function type) arg +arg-value-offset+)) |
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78 | |
79 | ;; One should never call this function on an arg whose value is already set |
80 | (defun (setf arg-value) |
81 | (value arg &optional (type (type-from-number (arg-type arg)))) |
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82 | (funcall (intern-writer-function type) value arg +arg-value-offset+) |
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83 | value) |
84 | |
85 | (defun (setf return-arg-value) |
86 | (value arg &optional (type (type-from-number (arg-type arg)))) |
87 | ; this is probably causing a memory leak |
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88 | (funcall (intern-writer-function type) value (arg-value arg 'pointer) 0) |
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89 | value) |
90 | |
91 | (defun arg-array-ref (arg0 index) |
92 | (system:sap+ arg0 (* index +arg-size+))) |
93 | |
94 | |
95 | ;;;; Superclass for the gtk class hierarchy |
96 | |
97 | (eval-when (:compile-toplevel :load-toplevel :execute) |
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98 | (init-types-in-library "/opt/gnome/lib/libgtk-x11-1.3.so") |
99 | |
100 | (defclass %object (gobject) |
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101 | () |
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102 | (:metaclass gobject-class) |
103 | (:alien-name "GtkObject"))) |
104 | |
105 | |
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106 | (defmethod shared-initialize ((object %object) names &rest initargs |
107 | &key signals) |
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108 | (declare (ignore initargs names)) |
109 | (call-next-method) |
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110 | (%object-sink object) |
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111 | (dolist (signal signals) |
112 | (apply #'signal-connect object signal))) |
113 | |
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114 | (defmethod initialize-proxy ((object %object) &rest initargs &key location) |
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115 | (declare (ignore initargs)) |
116 | (call-next-method) |
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117 | (%object-sink location)) |
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118 | |
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119 | (defbinding %object-sink () nil |
120 | (object %object)) |
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121 | |
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122 | |
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123 | ;;;; Main loop, timeouts and idle functions |
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124 | |
125 | (declaim (inline events-pending-p main-iteration)) |
126 | |
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127 | (defbinding (events-pending-p "gtk_events_pending") () boolean) |
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128 | |
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129 | (defbinding get-current-event () gdk:event) |
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130 | |
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131 | (defbinding main-do-event () nil |
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132 | (event gdk:event)) |
133 | |
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134 | (defbinding main () nil) |
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135 | |
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136 | (defbinding main-level () int) |
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137 | |
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138 | (defbinding main-quit () nil) |
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139 | |
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140 | (defbinding main-iteration-do (&optional (blocking t)) boolean |
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141 | (blocking boolean)) |
142 | |
143 | (defun main-iterate-all (&rest args) |
144 | (declare (ignore args)) |
145 | (when (events-pending-p) |
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146 | (main-iteration-do nil) |
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147 | (main-iterate-all))) |
148 | |
149 | (system:add-fd-handler (gdk:event-poll-fd) :input #'main-iterate-all) |
150 | (setq lisp::*periodic-polling-function* #'main-iterate-all) |
151 | (setq lisp::*max-event-to-sec* 0) |
152 | (setq lisp::*max-event-to-usec* 1000) |
153 | |
154 | |
155 | |
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156 | ;;;; Metaclass for child classes |
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157 | |
158 | (defvar *container-to-child-class-mappings* (make-hash-table)) |
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159 | |
160 | (eval-when (:compile-toplevel :load-toplevel :execute) |
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161 | (defclass child-class (virtual-slot-class)) |
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162 | |
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163 | (defclass direct-child-slot-definition (direct-virtual-slot-definition) |
164 | ((arg-name :reader slot-definition-arg-name))) |
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165 | |
166 | (defclass effective-child-slot-definition |
167 | (effective-virtual-slot-definition))) |
168 | |
169 | |
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170 | (defmethod shared-initialize ((class child-class) names &rest initargs |
171 | &key container) |
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172 | (declare (ignore initargs)) |
173 | (call-next-method) |
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174 | (setf |
175 | (gethash (find-class (first container)) *container-to-child-class-mappings*) |
176 | class)) |
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177 | |
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178 | (defmethod initialize-instance ((slotd direct-child-slot-definition) |
179 | &rest initargs &key arg-name) |
180 | (declare (ignore initargs)) |
181 | (call-next-method) |
182 | (if arg-name |
183 | (setf (slot-value slotd 'arg-name) arg-name) |
184 | (error "Need argument name for slot with allocation :arg"))) |
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185 | |
186 | (defmethod direct-slot-definition-class ((class child-class) initargs) |
187 | (case (getf initargs :allocation) |
188 | (:arg (find-class 'direct-child-slot-definition)) |
189 | (t (call-next-method)))) |
190 | |
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191 | (defmethod effective-slot-definition-class ((class child-class) initargs) |
192 | (case (getf initargs :allocation) |
193 | (:arg (find-class 'effective-child-slot-definition)) |
194 | (t (call-next-method)))) |
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195 | |
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196 | (defmethod compute-virtual-slot-accessor |
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197 | ((class child-class) (slotd effective-child-slot-definition) direct-slotds) |
198 | (with-slots (type) slotd |
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199 | (let ((arg-name (slot-definition-arg-name (first direct-slotds))) |
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200 | (type-number (find-type-number type)) |
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201 | ; (reader (intern-reader-function type)) |
202 | ; (writer (intern-writer-function type)) |
203 | ; (destroy (intern-destroy-function type)) |
204 | ) |
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205 | (list |
206 | #'(lambda (object) |
207 | (with-slots (parent child) object |
208 | (with-gc-disabled |
209 | (let ((arg (arg-new type-number))) |
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210 | (setf (arg-name arg) arg-name) |
211 | (%container-child-getv parent child arg) |
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212 | (prog1 |
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213 | (funcall |
214 | (intern-reader-function type) |
215 | arg +arg-value-offset+) |
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216 | (arg-free arg t t)))))) |
217 | #'(lambda (value object) |
218 | (with-slots (parent child) object |
219 | (with-gc-disabled |
220 | (let ((arg (arg-new type-number))) |
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221 | (setf (arg-name arg) arg-name) |
222 | (funcall |
223 | (intern-writer-function type) |
224 | value arg +arg-value-offset+) |
225 | (%container-child-setv parent child arg) |
226 | (funcall |
227 | (intern-destroy-function type) |
228 | arg +arg-value-offset+) |
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229 | (arg-free arg nil) |
230 | value)))))))) |
231 | |
232 | |
233 | (defmethod pcl::add-reader-method ((class child-class) generic-function slot-name) |
234 | (add-method |
235 | generic-function |
236 | (make-instance 'standard-method |
237 | :specializers (list (find-class 'widget)) |
238 | :lambda-list '(widget) |
239 | :function #'(lambda (args next-methods) |
240 | (declare (ignore next-methods)) |
241 | (child-slot-value (first args) slot-name))))) |
242 | |
243 | (defmethod pcl::add-writer-method |
244 | ((class child-class) generic-function slot-name) |
245 | (add-method |
246 | generic-function |
247 | (make-instance 'standard-method |
248 | :specializers (list (find-class t) (find-class 'widget)) |
249 | :lambda-list '(value widget) |
250 | :function #'(lambda (args next-methods) |
251 | (declare (ignore next-methods)) |
252 | (destructuring-bind (value widget) args |
253 | (setf |
254 | (child-slot-value widget slot-name) |
255 | value)))))) |
256 | |
257 | |
258 | (defmethod validate-superclass ((class child-class) (super pcl::standard-class)) |
259 | (subtypep (class-name super) 'container-child)) |
260 | |
261 | |
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262 | (defclass container-child () |
263 | ((parent :initarg :parent :type container) |
264 | (child :initarg :child :type widget))) |
265 | |
266 | |
267 | ;;;; |
268 | |
269 | (defbinding %container-query-child-args () arg |
270 | (type-number type-number) |
271 | (nil null) |
272 | (n-args unsigned-int :out)) |
273 | |
274 | (defun query-container-type-dependencies (type-number) |
275 | (let ((child-slot-types ())) |
276 | (multiple-value-bind (args n-args) |
277 | (%container-query-child-args type-number) |
278 | (dotimes (i n-args) |
279 | (push (arg-type (arg-array-ref args i)) child-slot-types))) |
280 | (delete-duplicates |
281 | (append (query-object-type-dependencies type-number) child-slot-types)))) |
282 | |
283 | (defun default-container-child-name (container-class) |
284 | (intern (format nil "~A-CHILD" container-class))) |
285 | |
286 | (defun expand-container-type (type-number &optional slots) |
287 | (let* ((class (type-from-number type-number)) |
288 | (super (supertype type-number)) |
289 | (child-class (default-container-child-name class)) |
290 | (child-slots ())) |
291 | (multiple-value-bind (args n-args) |
292 | (%container-query-child-args type-number) |
293 | (dotimes (i n-args) |
294 | (let* ((arg (arg-array-ref args i)) |
295 | (arg-name (arg-name arg)) |
296 | (slot-name (default-slot-name |
297 | (subseq arg-name (+ (position #\: arg-name) 2)))) |
298 | (type (type-from-number (arg-type arg) #|t|#))) |
299 | (push |
300 | `(,slot-name |
301 | :allocation :arg |
302 | :arg-name ,arg-name |
303 | :accessor ,(default-slot-accessor child-class slot-name type) |
304 | :initarg ,(intern (string slot-name) "KEYWORD") |
305 | :type ,type) |
306 | child-slots))) |
307 | `(progn |
308 | ,(expand-gobject-type type-number slots) |
309 | (defclass ,child-class |
310 | (,(default-container-child-name super)) |
311 | ,child-slots |
312 | (:metaclass child-class) |
313 | (:container ,class)))))) |
314 | |
315 | (register-derivable-type |
316 | 'container "GtkContainer" |
317 | :query 'query-container-type-dependencies |
318 | :expand 'expand-container-type) |