| 1 | (in-package :lisp-on-lines) |
| 2 | |
| 3 | (defmethod described-object ((attribute standard-attribute)) |
| 4 | (described-object (attribute-description attribute))) |
| 5 | |
| 6 | (define-description T () |
| 7 | ((label :label nil |
| 8 | :function (lambda (object) |
| 9 | (format nil "~@(~A~)" |
| 10 | (substitute #\Space #\- |
| 11 | (symbol-name |
| 12 | (class-name (class-of |
| 13 | object))))))) |
| 14 | (identity :label nil :function #'identity) |
| 15 | (type :label "Type" :function #'type-of) |
| 16 | (class :label "Class" :function #'class-of) |
| 17 | (active-attributes :label "Attributes" |
| 18 | :value nil |
| 19 | :activep nil |
| 20 | :keyword :attributes) |
| 21 | (attribute-delimiter :label "Attribute Delimiter" |
| 22 | :value "~%" |
| 23 | :activep nil |
| 24 | :keyword :delimter) |
| 25 | (active-descriptions :label "Active Descriptions" |
| 26 | :value nil |
| 27 | :activep nil |
| 28 | :keyword :activate) |
| 29 | (inactive-descriptions :label "Inactive Descriptions" |
| 30 | :value nil |
| 31 | :activep nil |
| 32 | :keyword :deactivate) |
| 33 | (label-formatter :value (lambda (label) |
| 34 | (generic-format *display* "~A:" label)) |
| 35 | :activep nil) |
| 36 | (value-formatter :value (curry #'format nil "~A") |
| 37 | :activep nil))) |
| 38 | |
| 39 | (define-layered-method description-of (any-lisp-object) |
| 40 | (find-description 't)) |
| 41 | |
| 42 | (define-layered-function display-attribute (attribute) |
| 43 | (:method (attribute) |
| 44 | (display-using-description attribute *display* (attribute-object attribute)))) |
| 45 | |
| 46 | |
| 47 | (define-layered-function display-attribute-label (attribute) |
| 48 | (:method (attribute) |
| 49 | (funcall (attribute-label-formatter attribute) (attribute-label attribute)))) |
| 50 | |
| 51 | (define-layered-function display-attribute-value (attribute) |
| 52 | (:method-combination arnesi:wrapping-standard) |
| 53 | (:method (attribute) |
| 54 | (flet ((disp (val &rest args) |
| 55 | (apply #'display *display* val |
| 56 | :activate (attribute-active-descriptions attribute) |
| 57 | :deactivate (attribute-inactive-descriptions attribute) |
| 58 | args))) |
| 59 | |
| 60 | |
| 61 | (let ((val (attribute-value attribute))) |
| 62 | #+nil (break "display Attribute value: ~A with object ~A ~% Description ~A att-d ~A ~% VALUE ~A display on ~A" |
| 63 | attribute |
| 64 | (attribute-object attribute) |
| 65 | *description* |
| 66 | (attribute-description attribute) |
| 67 | val |
| 68 | *display* |
| 69 | ) |
| 70 | (if (and (not (slot-boundp attribute 'active-attributes)) |
| 71 | (equal val (attribute-object attribute))) |
| 72 | (progn (generic-format *display* "~A"(funcall (attribute-value-formatter attribute) val)) |
| 73 | #+nil(break "using generic format because val is object and there is no active attributes.")) |
| 74 | |
| 75 | (with-active-descriptions (inline) |
| 76 | (cond ((slot-value attribute 'value-formatter) |
| 77 | (generic-format *display* "~A"(funcall (attribute-value-formatter attribute) val))) |
| 78 | ((slot-boundp attribute 'active-attributes) |
| 79 | (disp val :attributes (slot-value attribute 'active-attributes))) |
| 80 | (t |
| 81 | (disp val))))))))) |
| 82 | |
| 83 | (define-layered-method display-using-description |
| 84 | ((attribute standard-attribute) display object &rest args) |
| 85 | (declare (ignore args)) |
| 86 | (when (attribute-label attribute) |
| 87 | (display-attribute-label attribute)) |
| 88 | (display-attribute-value attribute)) |
| 89 | |
| 90 | (define-layered-method display-attribute :around ((attribute standard-attribute)) |
| 91 | (with-attribute-context (attribute) |
| 92 | (call-next-method)) |
| 93 | #+nil(funcall-with-layer-context |
| 94 | (modify-layer-context (current-layer-context) |
| 95 | :activate (attribute-active-descriptions attribute) |
| 96 | :deactivate (attribute-inactive-descriptions attribute)) |
| 97 | (lambda () |
| 98 | (call-next-method)))) |
| 99 | |
| 100 | (define-layered-method display-attribute :before |
| 101 | ((attribute standard-attribute)) |
| 102 | #+nil (break "Attribute : ~A with object ~A ~% Description ~A att-d ~A" |
| 103 | attribute |
| 104 | (attribute-object attribute) |
| 105 | *description* |
| 106 | (attribute-description attribute) |
| 107 | )) |
| 108 | |
| 109 | (define-display ((description t)) |
| 110 | (let ((attributes (attributes description))) |
| 111 | (when (first attributes)(display-attribute (first attributes))) |
| 112 | (dolist (attribute (rest attributes) (values)) |
| 113 | (generic-format *display* |
| 114 | (attribute-value |
| 115 | (find-attribute description 'attribute-delimiter))) |
| 116 | (display-attribute attribute)))) |
| 117 | |
| 118 | |
| 119 | (define-display :around ((description t) (display null) object) |
| 120 | (with-output-to-string (*standard-output*) |
| 121 | (apply #'call-next-layered-method description t object args))) |
| 122 | |
| 123 | |
| 124 | |
| 125 | |
| 126 | |