wizard

svn: r2883

collects/profjWizard/design-history

@@ -1,3 +1,32 @@
+TODO: 
+
+ - purpose statement for each interface method 
+
+ - one day, not now: blank out error messages somehow on the next event 
+ - one day, not now: a common abstract class
+      ;; Information about the union's common fields:
+      (add-button info-pane "Add Common Field"
+                    (lambda (x e) (send field-panel add)))
+      (define field-panel
+          (new field-panel%
+               (parent info-pane) (window this) 
+               (error-message (lambda (x) (error-message x)))))
+
+--------------------------------------------------------------------------------
+
+adapted wizard to interfaces (from abstract classes)
+ unions are interfaces plus implementing classes 
+ signatures of common methods 
+
+              | construction attributes   --- presentation only 
+	      |
+Languages     | template       toString         diagram
+------------------------------------------------------------------
+ BEGINNER     |    --               --             okay
+ INTERMEDIATE |  no "public"     no "public"       okay
+ PROFESSIONAL |   okay              okay	   okay
+
+--------------------------------------------------------------------------------
 view0: 
  design interfaces by hand 
  abstract into functions