| 1 | ;; Common Lisp bindings for GTK+ v2.x |
| 2 | ;; Copyright 1999-2005 Espen S. Johnsen <espen@users.sf.net> |
| 3 | ;; |
| 4 | ;; Permission is hereby granted, free of charge, to any person obtaining |
| 5 | ;; a copy of this software and associated documentation files (the |
| 6 | ;; "Software"), to deal in the Software without restriction, including |
| 7 | ;; without limitation the rights to use, copy, modify, merge, publish, |
| 8 | ;; distribute, sublicense, and/or sell copies of the Software, and to |
| 9 | ;; permit persons to whom the Software is furnished to do so, subject to |
| 10 | ;; the following conditions: |
| 11 | ;; |
| 12 | ;; The above copyright notice and this permission notice shall be |
| 13 | ;; included in all copies or substantial portions of the Software. |
| 14 | ;; |
| 15 | ;; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 16 | ;; EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 17 | ;; MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| 18 | ;; IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
| 19 | ;; CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| 20 | ;; TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| 21 | ;; SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 22 | |
| 23 | ;; $Id: gtkobject.lisp,v 1.34 2006-04-26 10:30:02 espen Exp $ |
| 24 | |
| 25 | |
| 26 | (in-package "GTK") |
| 27 | |
| 28 | |
| 29 | ;;;; Superclass for the gtk class hierarchy |
| 30 | |
| 31 | (eval-when (:compile-toplevel :load-toplevel :execute) |
| 32 | (init-types-in-library |
| 33 | #.(concatenate 'string (pkg-config:pkg-variable "gtk+-2.0" "libdir") |
| 34 | "/libgtk-x11-2.0.so")) |
| 35 | |
| 36 | (defclass %object (gobject) |
| 37 | () |
| 38 | (:metaclass gobject-class) |
| 39 | (:gtype |gtk_object_get_type|))) |
| 40 | |
| 41 | |
| 42 | (defmethod initialize-instance ((object %object) &rest initargs &key signal) |
| 43 | (declare (ignore signal)) |
| 44 | (call-next-method) |
| 45 | (dolist (signal-definition (get-all initargs :signal)) |
| 46 | (apply #'signal-connect object signal-definition))) |
| 47 | |
| 48 | (defmethod initialize-instance :around ((object %object) &rest initargs) |
| 49 | (declare (ignore initargs)) |
| 50 | (call-next-method) |
| 51 | ;; Add a temorary reference which will be removed when the object is |
| 52 | ;; sinked |
| 53 | (funcall (reference-function '%object) (foreign-location object)) |
| 54 | (%object-sink object)) |
| 55 | |
| 56 | (defbinding %object-sink () nil |
| 57 | (object %object)) |
| 58 | |
| 59 | ;;;; Main loop and event handling |
| 60 | |
| 61 | (defbinding events-pending-p () boolean) |
| 62 | |
| 63 | (defbinding get-current-event () gdk:event) |
| 64 | |
| 65 | (defbinding main-do-event () nil |
| 66 | (event gdk:event)) |
| 67 | |
| 68 | (defbinding main () nil) |
| 69 | |
| 70 | (defbinding main-level () int) |
| 71 | |
| 72 | (defbinding main-quit () nil) |
| 73 | |
| 74 | (defbinding main-iteration-do (&optional (blocking t)) boolean |
| 75 | (blocking boolean)) |
| 76 | |
| 77 | (defun main-iterate-all (&rest args) |
| 78 | (declare (ignore args)) |
| 79 | (loop |
| 80 | while (events-pending-p) |
| 81 | do (main-iteration-do nil)) |
| 82 | #+clisp 0) |
| 83 | |
| 84 | |
| 85 | ;;;; Metaclass for child classes |
| 86 | |
| 87 | (defvar *container-to-child-class-mappings* (make-hash-table)) |
| 88 | |
| 89 | (eval-when (:compile-toplevel :load-toplevel :execute) |
| 90 | (defclass container-child-class (virtual-slots-class) |
| 91 | ()) |
| 92 | |
| 93 | (defclass direct-child-slot-definition (direct-virtual-slot-definition) |
| 94 | ((pname :reader slot-definition-pname :initarg :pname))) |
| 95 | |
| 96 | (defclass effective-child-slot-definition (effective-virtual-slot-definition) |
| 97 | ((pname :reader slot-definition-pname :initarg :pname)))) |
| 98 | |
| 99 | |
| 100 | (defmethod shared-initialize ((class container-child-class) names &key container) |
| 101 | (declare (ignore names)) |
| 102 | (call-next-method) |
| 103 | (setf |
| 104 | (gethash (find-class (first container)) *container-to-child-class-mappings*) |
| 105 | class) |
| 106 | #+clisp |
| 107 | (loop |
| 108 | for slotd in (class-direct-slots class) |
| 109 | when (typep slotd 'direct-child-slot-definition) |
| 110 | do (loop |
| 111 | for reader in (slot-definition-readers slotd) |
| 112 | do (add-reader-method class |
| 113 | (ensure-generic-function reader :lambda-list '(object)) |
| 114 | (slot-definition-name slotd))) |
| 115 | (loop |
| 116 | for writer in (slot-definition-writers slotd) |
| 117 | do (add-writer-method class |
| 118 | (ensure-generic-function writer :lambda-list '(value object)) |
| 119 | (slot-definition-name slotd))))) |
| 120 | |
| 121 | (defmethod direct-slot-definition-class ((class container-child-class) &rest initargs) |
| 122 | (case (getf initargs :allocation) |
| 123 | (:property (find-class 'direct-child-slot-definition)) |
| 124 | (t (call-next-method)))) |
| 125 | |
| 126 | (defmethod effective-slot-definition-class ((class container-child-class) &rest initargs) |
| 127 | (case (getf initargs :allocation) |
| 128 | (:property (find-class 'effective-child-slot-definition)) |
| 129 | (t (call-next-method)))) |
| 130 | |
| 131 | (defmethod compute-effective-slot-definition-initargs ((class container-child-class) direct-slotds) |
| 132 | (if (eq (slot-definition-allocation (first direct-slotds)) :property) |
| 133 | (nconc |
| 134 | (list :pname (most-specific-slot-value direct-slotds 'pname)) |
| 135 | (call-next-method)) |
| 136 | (call-next-method))) |
| 137 | |
| 138 | (defmethod compute-slot-reader-function ((slotd effective-child-slot-definition)) |
| 139 | (let* ((type (slot-definition-type slotd)) |
| 140 | (pname (slot-definition-pname slotd)) |
| 141 | (reader (reader-function type :ref :get))) |
| 142 | #'(lambda (object) |
| 143 | (with-slots (parent child) object |
| 144 | (with-memory (gvalue +gvalue-size+) |
| 145 | (glib::%gvalue-init gvalue (find-type-number type)) |
| 146 | (%container-child-get-property parent child pname gvalue) |
| 147 | (funcall reader gvalue +gvalue-value-offset+)))))) |
| 148 | |
| 149 | (defmethod compute-slot-writer-function ((slotd effective-child-slot-definition)) |
| 150 | (let* ((type (slot-definition-type slotd)) |
| 151 | (pname (slot-definition-pname slotd)) |
| 152 | (writer (writer-function type :temp t)) |
| 153 | (destroy (destroy-function type :temp t))) |
| 154 | #'(lambda (value object) |
| 155 | (with-slots (parent child) object |
| 156 | (with-memory (gvalue +gvalue-size+) |
| 157 | (glib::%gvalue-init gvalue (find-type-number type)) |
| 158 | (funcall writer value gvalue +gvalue-value-offset+) |
| 159 | (%container-child-set-property parent child pname gvalue) |
| 160 | (funcall destroy gvalue +gvalue-value-offset+)) |
| 161 | value)))) |
| 162 | |
| 163 | |
| 164 | (defmethod add-reader-method ((class container-child-class) generic-function slot-name) |
| 165 | (add-method |
| 166 | generic-function |
| 167 | (make-instance 'standard-method |
| 168 | :specializers (list (find-class 'widget)) |
| 169 | :lambda-list '(widget) |
| 170 | :function #'(lambda (args next-methods) |
| 171 | (declare (ignore next-methods)) |
| 172 | (child-property-value (first args) slot-name))))) |
| 173 | |
| 174 | (defmethod add-writer-method ((class container-child-class) generic-function slot-name) |
| 175 | (add-method |
| 176 | generic-function |
| 177 | (make-instance 'standard-method |
| 178 | :specializers (list (find-class t) (find-class 'widget)) |
| 179 | :lambda-list '(value widget) |
| 180 | :function #'(lambda (args next-methods) |
| 181 | (declare (ignore next-methods)) |
| 182 | (destructuring-bind (value widget) args |
| 183 | (setf (child-property-value widget slot-name) value)))))) |
| 184 | |
| 185 | |
| 186 | (defmethod validate-superclass ((class container-child-class) (super standard-class)) |
| 187 | ;(subtypep (class-name super) 'container-child) |
| 188 | t) |
| 189 | |
| 190 | |
| 191 | (defclass container-child () |
| 192 | ((parent :initarg :parent :type container) |
| 193 | (child :initarg :child :type widget))) |
| 194 | |
| 195 | |
| 196 | ;;;; |
| 197 | |
| 198 | (defbinding %container-class-list-child-properties () pointer |
| 199 | (class pointer) |
| 200 | (n-properties unsigned-int :out)) |
| 201 | |
| 202 | (defun query-container-class-child-properties (type-number) |
| 203 | (let ((class (type-class-ref type-number))) |
| 204 | (multiple-value-bind (array length) |
| 205 | (%container-class-list-child-properties class) |
| 206 | (unwind-protect |
| 207 | (map-c-vector 'list #'identity array 'param length) |
| 208 | (deallocate-memory array))))) |
| 209 | |
| 210 | (defun default-container-child-name (container-class) |
| 211 | (intern (format nil "~A-CHILD" container-class))) |
| 212 | |
| 213 | (defun expand-container-type (type forward-p options) |
| 214 | (let* ((class (type-from-number type)) |
| 215 | (super (supertype type)) |
| 216 | (child-class (default-container-child-name class))) |
| 217 | (if forward-p |
| 218 | (expand-gobject-type type t options) |
| 219 | `(progn |
| 220 | ,(expand-gobject-type type nil options) |
| 221 | (defclass ,child-class (,(default-container-child-name super)) |
| 222 | ,(slot-definitions child-class |
| 223 | (query-container-class-child-properties type) nil) |
| 224 | (:metaclass container-child-class) |
| 225 | (:container ,class)))))) |
| 226 | |
| 227 | |
| 228 | (register-derivable-type 'container "GtkContainer" 'expand-container-type 'gobject-dependencies) |