--- a/ColorMenu.st	Sun Jan 23 20:35:29 2011 +0100
+++ b/ColorMenu.st	Mon Jan 24 11:25:37 2011 +0100
@@ -14,7 +14,8 @@
 MenuPanel subclass:#ColorMenu
 	instanceVariableNames:'overwriteDefaultToggleChannel enabledChannel labelsAreColored
 		color colorName allowSymbolicColors showDefaultToggle
-		acceptAction useDefaultColorToggleVisibleHolder'
+		acceptAction useDefaultColorToggleVisibleHolder allowNilColor
+		haveMenu hasNilColorHolder'
 	classVariableNames:'ColorMenuSpec RecentlyUsedColors'
 	poolDictionaries:''
 	category:'Interface-UIPainter'
@@ -411,9 +412,11 @@
 
     (model notNil 
     and:[ model isSymbol not]) ifTrue:[
-        model value:aColor.
+        model value:(self hasNilColorHolder value ifTrue:[nil] ifFalse:[aColor]).
     ].
     color := aColor.
+
+    "Modified: / 24-01-2011 / 10:27:57 / cg"
 ! !
 
 !ColorMenu methodsFor:'accessing'!
@@ -422,6 +425,23 @@
     acceptAction := something.
 !
 
+allowNilColor
+    ^ allowNilColor
+
+    "Created: / 24-01-2011 / 10:01:55 / cg"
+!
+
+allowNilColor:aBoolean
+    allowNilColor ~~ aBoolean ifTrue:[
+        allowNilColor := aBoolean.
+        haveMenu ifTrue:[
+            self setupMenu.
+        ].
+    ].
+
+    "Created: / 24-01-2011 / 10:02:25 / cg"
+!
+
 allowSymbolicColors
     ^ allowSymbolicColors
 !
@@ -433,7 +453,9 @@
 color
     "get current color"
 
-    ^ color
+    ^ (self hasNilColorHolder value ifTrue:[nil] ifFalse:[color])
+
+    "Modified: / 24-01-2011 / 10:28:13 / cg"
 !
 
 color:aColor
@@ -475,7 +497,12 @@
 colorHolder
     "returns the item which keeps the selected color in its label"
 
+    haveMenu ifFalse:[
+        self setupMenu
+    ].
     ^ self itemAt:#selection
+
+    "Modified: / 24-01-2011 / 10:10:55 / cg"
 !
 
 contents
@@ -496,6 +523,16 @@
     "Modified: / 23-01-2011 / 16:24:12 / cg"
 !
 
+hasNilColorHolder
+    hasNilColorHolder isNil ifTrue:[
+        hasNilColorHolder := false asValue.
+        hasNilColorHolder onChangeSend:#hasNilColorHolderChanged to:self.
+    ].
+    ^ hasNilColorHolder
+
+    "Created: / 24-01-2011 / 10:21:52 / cg"
+!
+
 labelsAreColored
     "controls if labels or their backgrounds will be colored"
 
@@ -511,8 +548,12 @@
 
     labelsAreColored ~~ bool ifTrue:[
         labelsAreColored := bool.
-        self setupMenu
+        haveMenu ifTrue:[
+            self setupMenu.
+        ].
     ].
+
+    "Modified: / 24-01-2011 / 10:08:59 / cg"
 !
 
 overwriteDefaultToggleChannel
@@ -546,8 +587,19 @@
 
 !ColorMenu methodsFor:'change & update'!
 
+hasNilColorHolderChanged
+    overwriteDefaultToggleChannel value:(hasNilColorHolder value)
+
+    "Created: / 24-01-2011 / 10:35:57 / cg"
+!
+
 updateFromModel
-    self color:(model value)
+    |clr|
+
+    self color:(clr := model value).
+    self hasNilColorHolder value:clr isNil.
+
+    "Modified: / 24-01-2011 / 10:26:20 / cg"
 ! !
 
 !ColorMenu methodsFor:'help'!
@@ -630,12 +682,29 @@
     labelsAreColored    := false.
     verticalLayout      := false.
     allowSymbolicColors := false.
+    allowNilColor       := false.
 
     self fitFirstPanel:false.
     "/ enabledChannel := ValueHolder with:false.
-    self setupMenu.
+    "/ self setupMenu.
+
+    "Modified: / 24-01-2011 / 10:07:25 / cg"
+!
+
+menu:aMenu
+    haveMenu := true.
+    super menu:aMenu
 
-    "Modified: / 23-01-2011 / 16:05:31 / cg"
+    "Created: / 24-01-2011 / 10:07:47 / cg"
+!
+
+realized
+    super realized.
+    haveMenu ifFalse:[
+        self setupMenu.
+    ].
+
+    "Created: / 24-01-2011 / 10:06:37 / cg"
 !
 
 setupMenu
@@ -683,11 +752,19 @@
         menu addItem:toggleItem beforeIndex:1.
 "/    ].
 
+    allowNilColor ifTrue:[
+        toggleItem := MenuItem labeled:'No Color'.
+        toggleItem value:#noColor.
+        toggleItem isButton:false.
+        toggleItem activeHelpKey:#noColor.    
+        toggleItem indication:self hasNilColorHolder.
+        menu addItem:toggleItem.
+    ].
+
     self menu:menu.
-
     self updateEnableChannel
 
-    "Modified: / 23-01-2011 / 16:08:18 / cg"
+    "Modified: / 24-01-2011 / 10:31:08 / cg"
 !
 
 updateEnableChannel
@@ -696,11 +773,15 @@
             anItem indication:self overwriteDefaultToggleChannel.
             "/ anItem enabled:enabledChannel.
         ] ifFalse:[
-            anItem enabled:self overwriteDefaultToggleChannel.
+            anItem value == #noColor ifTrue:[
+            ] ifFalse:[
+                anItem enabled:self overwriteDefaultToggleChannel.
+            ]
         ]
     ]
 
     "Created: / 23-01-2011 / 16:08:06 / cg"
+    "Modified: / 24-01-2011 / 10:30:03 / cg"
 ! !
 
 !ColorMenu methodsFor:'user actions'!
@@ -732,9 +813,9 @@
 !ColorMenu class methodsFor:'documentation'!
 
 version
-    ^ '$Header: /cvs/stx/stx/libwidg2/ColorMenu.st,v 1.67 2011-01-23 19:35:29 cg Exp $'
+    ^ '$Header: /cvs/stx/stx/libwidg2/ColorMenu.st,v 1.68 2011-01-24 10:25:37 cg Exp $'
 !
 
 version_CVS
-    ^ '$Header: /cvs/stx/stx/libwidg2/ColorMenu.st,v 1.67 2011-01-23 19:35:29 cg Exp $'
+    ^ '$Header: /cvs/stx/stx/libwidg2/ColorMenu.st,v 1.68 2011-01-24 10:25:37 cg Exp $'
 ! !