Pass &rest args onto next method in display t NULL

[clinton/lisp-on-lines.git] / src / standard-descriptions / t.lisp

diff --git a/src/standard-descriptions/t.lisp b/src/standard-descriptions/t.lisp
index 2980e31..3256903 100644 (file)
--- a/src/standard-descriptions/t.lisp
+++ b/src/standard-descriptions/t.lisp
@@ -1,24 +1,125 @@
 (in-package :lisp-on-lines)
 
+(defmethod described-object ((attribute standard-attribute))
+  (described-object (attribute-description attribute)))
+
 (define-description T ()
-  ((identity :label nil :function #'identity)
+  ((label :label nil 
+         :function (lambda (object)
+                     (format nil "~@(~A~)" 
+                             (substitute #\Space #\- 
+                                         (symbol-name 
+                                          (class-name (class-of 
+                                                       object)))))))
+   (identity :label nil :function #'identity)
    (type :label "Type" :function #'type-of)
    (class :label "Class" :function #'class-of)
    (active-attributes :label "Attributes"
                      :value nil
                      :activep nil
-                     :keyword :attributes)))
+                     :keyword :attributes)
+   (attribute-delimiter :label "Attribute Delimiter"
+                       :value "~%"
+                       :activep nil
+                       :keyword :delimter)
+   (active-descriptions :label "Active Descriptions"
+                       :value nil
+                       :activep nil
+                       :keyword :activate)
+   (inactive-descriptions :label "Inactive Descriptions"
+                         :value nil
+                         :activep nil
+                         :keyword :deactivate)
+   (label-formatter :value (lambda (label)
+                            (generic-format *display* "~A:" label))
+                   :activep nil)
+   (value-formatter :value (curry #'format nil "~A")
+                   :activep nil)))
 
 (define-layered-method description-of (any-lisp-object)
   (find-description 't))
 
+(define-layered-function display-attribute (attribute)
+  (:method (attribute)
+    (display-using-description attribute *display* (attribute-object attribute))))
+
+
+(define-layered-function display-attribute-label (attribute)
+  (:method (attribute)
+    (funcall (attribute-label-formatter attribute) (attribute-label attribute))))
+          
+(define-layered-function display-attribute-value (attribute)
+  (:method-combination arnesi:wrapping-standard)
+  (:method (attribute)
+    (flet ((disp (val &rest args)
+            (apply #'display *display* val 
+                   :activate (attribute-active-descriptions attribute)
+                   :deactivate (attribute-inactive-descriptions attribute)
+                   args)))
+
+
+    (let ((val (attribute-value attribute)))
+#+nil            (break "display Attribute value: ~A with object ~A ~% Description ~A att-d ~A ~% VALUE ~A display on ~A" 
+                        attribute 
+                        (attribute-object attribute)
+                        *description*
+                        (attribute-description attribute)
+                        val
+                        *display*
+                        )
+      (if (and (not (slot-boundp attribute 'active-attributes))
+              (equal val (attribute-object attribute)))
+         (progn (generic-format *display* "~A"(funcall (attribute-value-formatter attribute) val))              
+                #+nil(break "using generic format because val is object and there is no active attributes."))
+         
+         (with-active-descriptions (inline)
+           (cond ((slot-value attribute 'value-formatter)
+                  (generic-format *display* "~A"(funcall (attribute-value-formatter attribute) val)))
+                  ((slot-boundp attribute 'active-attributes)
+                   (disp val :attributes (slot-value attribute 'active-attributes)))
+                  (t
+                   (disp val)))))))))
+
+(define-layered-method display-using-description 
+  ((attribute standard-attribute) display object &rest args)
+  (declare (ignore args))
+  (when (attribute-label attribute)
+    (display-attribute-label attribute))
+  (display-attribute-value attribute))
+
+(define-layered-method display-attribute :around
+  ((attribute standard-attribute))
+    (funcall-with-layer-context 
+   (modify-layer-context (current-layer-context) 
+                        :activate (attribute-active-descriptions attribute)
+                        :deactivate (attribute-inactive-descriptions attribute))
+   (lambda () 
+     (call-next-method))))
+
+(define-layered-method display-attribute :before
+  ((attribute standard-attribute))
+#+nil  (break "Attribute : ~A with object ~A ~% Description ~A att-d ~A" 
+        attribute 
+        (attribute-object attribute)
+        *description*
+        (attribute-description attribute)
+))
+
 (define-display ((description t))
-  (format *display* "~{~A~%~}" 
-         (mapcar 
-          (lambda (attribute)
-            (with-output-to-string (*display*)
-              (display-attribute *object* attribute)))
-          (attributes description))))
+ (let ((attributes (attributes description)))
+   (when (first attributes)(display-attribute (first attributes)))
+   (dolist (attribute (rest attributes) (values))
+     (generic-format *display* 
+      (attribute-value 
+       (find-attribute description 'attribute-delimiter)))
+     (display-attribute attribute))))
+  
+
+(define-display :around ((description t) (display null) object)
+ (with-output-to-string (*standard-output*)
+   (apply #'call-next-layered-method description t object args)))
+
+