1 ;; Common Lisp bindings for GTK+ v2.0
2 ;; Copyright (C) 1999-2001 Espen S. Johnsen <espen@users.sourceforge.org>
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.
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.
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
18 ;; $Id: gtkobject.lisp,v 1.16 2004-10-31 12:05:52 espen Exp $
26 ; (defun name-to-string (name)
27 ; (substitute #\_ #\- (string-downcase (string name))))
29 ; (defun string-to-name (name &optional (package "KEYWORD"))
30 ; (intern (substitute #\- #\_ (string-upcase name)) package))
34 ;;;; Superclass for the gtk class hierarchy
36 (eval-when (:compile-toplevel :load-toplevel :execute)
37 (init-types-in-library "libgtk-x11-2.0.so"
38 :ignore ("gtk_window_get_type_hint"))
40 (defclass %object (gobject)
42 (:metaclass gobject-class)
43 (:alien-name "GtkObject")))
46 (defmethod shared-initialize ((object %object) names &rest initargs &key signal)
47 (declare (ignore names signal))
49 (object-ref object) ; inc ref count before sinking
51 (dolist (signal-definition (get-all initargs :signal))
52 (apply #'signal-connect object signal-definition)))
54 (defmethod initialize-proxy ((object %object) &rest initargs)
55 (declare (ignore initargs))
57 (%object-sink object))
59 (defbinding %object-sink () nil
62 ;;;; Main loop, timeouts and idle functions
64 (declaim (inline events-pending-p main-iteration))
66 (defbinding (events-pending-p "gtk_events_pending") () boolean)
68 (defbinding get-current-event () gdk:event)
70 (defbinding main-do-event () nil
73 (defbinding main () nil)
75 (defbinding main-level () int)
77 (defbinding main-quit () nil)
79 (defbinding main-iteration-do (&optional (blocking t)) boolean
82 (defun main-iterate-all (&rest args)
83 (declare (ignore args))
84 (when (events-pending-p)
85 (main-iteration-do nil)
90 (defbinding (gtk-init "gtk_parse_args") () nil
91 "Initializes the library without opening the display."
96 (defun clg-init (&optional display)
97 "Initializes the system and starts the event handling"
98 (unless (gdk:display-get-default)
102 (gdk:display-open display)
103 (system:add-fd-handler
104 (gdk:display-connection-number) :input #'main-iterate-all)
105 (setq lisp::*periodic-polling-function* #'main-iterate-all)
106 (setq lisp::*max-event-to-sec* 0)
107 (setq lisp::*max-event-to-usec* 1000))))
111 ;;;; Metaclass for child classes
113 (defvar *container-to-child-class-mappings* (make-hash-table))
115 (eval-when (:compile-toplevel :load-toplevel :execute)
116 (defclass child-class (virtual-slot-class)
119 (defclass direct-child-slot-definition (direct-virtual-slot-definition)
120 ((pname :reader slot-definition-pname :initarg :pname)))
122 (defclass effective-child-slot-definition (effective-virtual-slot-definition)
123 ((pname :reader slot-definition-pname :initarg :pname)))
126 (defmethod shared-initialize ((class child-class) names &key container)
129 (gethash (find-class (first container)) *container-to-child-class-mappings*)
132 ;; (defmethod initialize-instance ((slotd direct-child-slot-definition)
133 ;; &rest initargs &key pname)
134 ;; (declare (ignore initargs))
135 ;; (call-next-method)
137 ;; (setf (slot-value slotd 'pname) pname)
139 ;; (error "Need pname for slot with allocation :property")))
141 (defmethod direct-slot-definition-class ((class child-class) &rest initargs)
142 (case (getf initargs :allocation)
143 (:property (find-class 'direct-child-slot-definition))
144 (t (call-next-method))))
146 (defmethod effective-slot-definition-class ((class child-class) &rest initargs)
147 (case (getf initargs :allocation)
148 (:property (find-class 'effective-child-slot-definition))
149 (t (call-next-method))))
151 (defmethod compute-effective-slot-definition-initargs ((class child-class) direct-slotds)
152 (if (eq (most-specific-slot-value direct-slotds 'allocation) :property)
154 (list :pname (most-specific-slot-value direct-slotds 'pname))
159 (declaim (optimize (ext:inhibit-warnings 3)))
160 (defun %container-child-get-property (parent child pname gvalue))
161 (defun %container-child-set-property (parent child pname gvalue)))
164 (defmethod initialize-internal-slot-functions ((slotd effective-child-slot-definition))
165 (let* ((type (slot-definition-type slotd))
166 (pname (slot-definition-pname slotd))
167 (type-number (find-type-number type)))
168 (unless (slot-boundp slotd 'reader-function)
170 (slot-value slotd 'reader-function)
172 (with-slots (parent child) object
174 (let ((gvalue (gvalue-new type-number)))
175 (%container-child-get-property parent child pname gvalue)
178 (intern-reader-function type)
179 gvalue +gvalue-value-offset+)
180 (gvalue-free gvalue t))))))))
182 (unless (slot-boundp slotd 'writer-function)
184 (slot-value slotd 'writer-function)
185 #'(lambda (value object)
186 (with-slots (parent child) object
188 (let ((gvalue (gvalue-new type-number)))
190 (intern-writer-function type)
191 value gvalue +gvalue-value-offset+)
192 (%container-child-set-property parent child pname gvalue)
194 (intern-destroy-function type)
195 gvalue +gvalue-value-offset+)
196 (gvalue-free gvalue nil)
199 (unless (slot-boundp slotd 'boundp-function)
201 (slot-value slotd 'boundp-function)
203 (declare (ignore object))
208 (defmethod pcl::add-reader-method ((class child-class) generic-function slot-name)
211 (make-instance 'standard-method
212 :specializers (list (find-class 'widget))
213 :lambda-list '(widget)
214 :function #'(lambda (args next-methods)
215 (declare (ignore next-methods))
216 (child-slot-value (first args) slot-name)))))
218 (defmethod pcl::add-writer-method
219 ((class child-class) generic-function slot-name)
222 (make-instance 'standard-method
223 :specializers (list (find-class t) (find-class 'widget))
224 :lambda-list '(value widget)
225 :function #'(lambda (args next-methods)
226 (declare (ignore next-methods))
227 (destructuring-bind (value widget) args
229 (child-slot-value widget slot-name)
233 (defmethod validate-superclass ((class child-class) (super pcl::standard-class))
234 ;(subtypep (class-name super) 'container-child)
238 (defclass container-child ()
239 ((parent :initarg :parent :type container)
240 (child :initarg :child :type widget)))
245 (defbinding %container-class-list-child-properties () pointer
247 (n-properties unsigned-int :out))
249 (defun query-container-class-child-properties (type-number)
250 (let ((class (type-class-ref type-number)))
251 (multiple-value-bind (array length)
252 (%container-class-list-child-properties class)
254 (map-c-array 'list #'identity array 'param length)
255 (deallocate-memory array)))))
257 (defun default-container-child-name (container-class)
258 (intern (format nil "~A-CHILD" container-class)))
260 (defun expand-container-type (type &optional options)
261 (let* ((class (type-from-number type))
262 (super (supertype type))
263 (child-class (default-container-child-name class)))
265 ,(expand-gobject-type type options)
266 (defclass ,child-class (,(default-container-child-name super))
267 ,(slot-definitions child-class
268 (query-container-class-child-properties type) nil)
269 (:metaclass child-class)
270 (:container ,class)))))
273 (register-derivable-type 'container "GtkContainer" 'expand-container-type)