ValueModel.st
changeset 125 fa5b5e4336bf
parent 114 e577a2f332d0
child 129 f890eaabc487
--- a/ValueModel.st	Thu Nov 23 11:40:23 1995 +0100
+++ b/ValueModel.st	Thu Nov 23 11:43:41 1995 +0100
@@ -10,8 +10,6 @@
  hereby transferred.
 "
 
-'From Smalltalk/X, Version:2.10.5 on 9-may-1995 at 12:03:02 pm'!
-
 Model subclass:#ValueModel
 	 instanceVariableNames:'accepted interrest'
 	 classVariableNames:''
@@ -35,10 +33,6 @@
 "
 !
 
-version
-    ^ '$Header: /cvs/stx/stx/libview2/ValueModel.st,v 1.11 1995-11-11 16:05:28 cg Exp $'
-!
-
 documentation
 "
     abstract superclass for ValueHolders and Adaptors.
@@ -54,6 +48,10 @@
     subclasses must redefine: #setValue: and #value
     (and optionally redefine #value:)
 "
+!
+
+version
+    ^ '$Header: /cvs/stx/stx/libview2/ValueModel.st,v 1.12 1995-11-23 10:43:15 cg Exp $'
 ! !
 
 !ValueModel class methodsFor:'instance creation'!
@@ -62,17 +60,39 @@
     ^ (super new) initialize
 ! !
 
-!ValueModel ignoredMethodsFor:'change notification'!
+!ValueModel methodsFor:'accessing'!
+
+accept
+    accepted := true
+!
 
-notifyChange:aSymbol
-    "notify my dependents and those that are interrested"
+accepted
+    ^ accepted
+!
+
+setValue:newValue 
+    "physically set my value, without change notifications"
+
+    ^ self subclassResponsibility
+!
 
-    interrest notNil ifTrue:[
-	interrest keysAndValuesDo:[:someone :selector |
-	    someone perform:selector
-	].
-    ].
-    self changed:aSymbol
+value 
+    "return my value"
+
+    ^ self subclassResponsibility
+!
+
+value:anObject
+    "set my value, if it changed, send change notifications to my dependents."
+
+    |oldValue|
+
+    oldValue := self value.
+    self setValue:anObject.
+    anObject ~= oldValue ifTrue:[
+	"/ self notifyChange:#value
+	self changed:#value
+    ]
 ! !
 
 !ValueModel methodsFor:'change notification'!
@@ -88,41 +108,6 @@
     super changed:aSymbol
 ! !
 
-!ValueModel methodsFor:'accessing'!
-
-value:anObject
-    "set my value, if it changed, send change notifications to my dependents."
-
-    |oldValue|
-
-    oldValue := self value.
-    self setValue:anObject.
-    anObject ~= oldValue ifTrue:[
-	"/ self notifyChange:#value
-	self changed:#value
-    ]
-!
-
-accepted
-    ^ accepted
-!
-
-accept
-    accepted := true
-!
-
-value 
-    "return my value"
-
-    ^ self subclassResponsibility
-!
-
-setValue:newValue 
-    "physically set my value, without change notifications"
-
-    ^ self subclassResponsibility
-! !
-
 !ValueModel methodsFor:'initialization'!
 
 initialize
@@ -131,6 +116,17 @@
 
 !ValueModel methodsFor:'interrest'!
 
+onChangeSend:selector to:someone
+    "add an interrest, arranging that
+     a message with selector will be sent to someone 
+     when my value changes."
+
+    interrest isNil ifTrue:[
+	interrest := IdentityDictionary new
+    ].
+    interrest at:someone put:selector
+!
+
 retractInterrestFor:someone
     "release interrest i.e. do no longer send changeMsg to changeReceiver
      iff someone is the changeReceiver.
@@ -140,15 +136,5 @@
     interrest notNil ifTrue:[
 	interrest removeKey:someone ifAbsent:nil
     ]
-!
+! !
 
-onChangeSend:selector to:someone
-    "add an interrest, arranging that
-     a message with selector will be sent to someone 
-     when my value changes."
-
-    interrest isNil ifTrue:[
-	interrest := IdentityDictionary new
-    ].
-    interrest at:someone put:selector
-! !