diff -r 6db49934cd0e -r d54bd94c8090 UILayoutTool.st
--- a/UILayoutTool.st	Fri Jul 18 11:47:47 2008 +0200
+++ b/UILayoutTool.st	Fri Jul 18 11:55:06 2008 +0200
@@ -839,6 +839,11 @@
         leftAlignmentFraction   topAlignmentFraction
         (useDefaultExtent     false)
         (defaultExtentEnabled false)
+
+        (usePreferredWidth false)
+        (usePreferredHeight false)
+        (useDynamicPreferredWidth false)
+        (useDynamicPreferredHeight false)
     )
 
     do:[:aKeyOrPair| |holder key val|
@@ -856,8 +861,6 @@
     tabList := Array new:size.
 
     1 to:size do:[:i| tabList at:i put:((slices at:i) first) ].
-
-
 ! !
 
 !UILayoutTool methodsFor:'selection'!
@@ -2150,8 +2153,7 @@
           label: 'UILayoutTool-LayoutFrame'
           name: 'UILayoutTool-LayoutFrame'
           min: (Point 10 10)
-          bounds: (Rectangle 0 0 399 303)
-          forceRecursiveBackground: false
+          bounds: (Rectangle 0 0 511 302)
         )
         component: 
        (SpecCollection
@@ -2289,6 +2291,34 @@
                     tabable: true
                     model: bottomRelativeBottom
                   )
+                 (CheckBoxSpec
+                    label: 'Use Preferred'
+                    name: 'CheckBox1'
+                    layout: (LayoutFrame 287 0 14 0 393 0 36 0)
+                    model: usePreferredWidth
+                    translateLabel: true
+                  )
+                 (CheckBoxSpec
+                    label: 'Use Preferred'
+                    name: 'CheckBox2'
+                    layout: (LayoutFrame 287 0 42 0 393 0 64 0)
+                    model: usePreferredHeight
+                    translateLabel: true
+                  )
+                 (CheckBoxSpec
+                    label: 'Dynamic'
+                    name: 'CheckBox3'
+                    layout: (LayoutFrame 394 0 14 0 471 0 36 0)
+                    model: useDynamicPreferredWidth
+                    translateLabel: true
+                  )
+                 (CheckBoxSpec
+                    label: 'Dynamic'
+                    name: 'CheckBox4'
+                    layout: (LayoutFrame 394 0 42 0 471 0 64 0)
+                    model: useDynamicPreferredHeight
+                    translateLabel: true
+                  )
                  )
                
               )
@@ -2581,7 +2611,6 @@
 !UILayoutTool::LayoutFrame methodsFor:'accessing'!
 
 fetch:aView spec:aSpec
-
     |layout|
 
     aSpec class == WindowSpec ifTrue:[
@@ -2600,10 +2629,14 @@
     (self aspectFor:#rightFraction)  value:(layout rightFraction).
     (self aspectFor:#bottomFraction) value:(layout bottomFraction).
 
+    (self aspectFor:#usePreferredWidth) value:(aSpec usePreferredWidth).
+    (self aspectFor:#usePreferredHeight) value:(aSpec usePreferredHeight).
+    (self aspectFor:#useDynamicPreferredWidth) value:(aSpec useDynamicPreferredWidth).
+    (self aspectFor:#useDynamicPreferredHeight) value:(aSpec useDynamicPreferredHeight).
 !
 
 layout
-    "returns current layout as layoutFrame
+    "returns the current layout as layoutFrame
     "
     |layout|