added a defualt :size initarg of 30. this should be more customisable.

[clinton/lisp-on-lines.git] / src / mewa / mewa.lisp

diff --git a/src/mewa/mewa.lisp b/src/mewa/mewa.lisp
index 54ab29d..1d8916c 100644 (file)
--- a/src/mewa/mewa.lisp
+++ b/src/mewa/mewa.lisp
@@ -65,6 +65,9 @@ attributes is an alist keyed on the attribute nreeame."
 (defmethod find-class-attributes ((model symbol))
   (find-or-create-attributes model))
 
+(defmethod clear-class-attributes ((model t))
+  (setf (cdr (find-class-attributes model)) nil))
+
 (defmethod add-attribute ((model t) name def)
   (let ((map (find-class-attributes model)))
     (setf (cdr map) (acons name def (cdr map)))))
@@ -94,6 +97,21 @@ attributes is an alist keyed on the attribute nreeame."
   (dolist (def definitions)
     (funcall #'set-attribute model (first def) (rest def))))
 
+
+(defmethod set-attribute-properties ((model t) attribute properties)
+  (let ((a (find-attribute model attribute)))
+    (if a
+       (setf (cddr a) (plist-nunion properties (cddr a)))
+       (error "Attribute ~A does not exist" attribute) )))
+
+(defmethod perform-set-attribute-properties ((model t) definitions)
+  (dolist (def definitions)
+    (funcall #'set-attribute-properties model (car def) (cdr def))))
+  
+
+
+
+
 (defmethod default-attributes ((model t))
   "return the default attributes for a given model using the meta-model's meta-data"
   (append (mapcar #'(lambda (s) 
@@ -113,6 +131,7 @@ attributes is an alist keyed on the attribute nreeame."
                  (meta-model:list-has-many model))))
 
 (defmethod set-default-attributes ((model t))
+  (clear-class-attributes model)
   (mapcar #'(lambda (x) 
              (setf (find-attribute model (car x)) (cdr x)))
          (default-attributes model)))
@@ -222,7 +241,7 @@ attributes is an alist keyed on the attribute nreeame."
              (let ((class-name (or (gethash (second s) ucw::*slot-type-mapping*) 'mewa-object-presentation)))
              (apply #'make-instance 
                     class-name
-                    (append (cddr s) (list :parent self)))))
+                    (append (cddr s) (list :parent self :size 30)))))
          (find-applicable-attributes self)))