* Implemented BestSize cache

* Added calls to InvalidateBestSize where things affecting BestSize
  are modified.  There are probably several other places where this
  still needs to be done...

* Added wxWindowBase::GetBestFittingSize that will merge the BestSize
  into the MinSize, (if any) and return the result.

* SetBestFittingSize will now only set the MinSize to the value that
  was passed to it, without merging in the BestSize


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@28010 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/src/_window.i

@@ -509,6 +509,21 @@ after calling Fit.", "");
         GetBestSizeTuple);
     
 
+    DocDeclStr(
+        void , InvalidateBestSize(),
+        "Reset the cached best size value so it will be recalculated the next
+time it is needed.", "");
+
+
+    
+    DocDeclStr(
+        wxSize , GetBestFittingSize() const,
+        "This function will merge the window's best size into the window's
+minimum size, giving priority to the min size components, and returns
+the results.
+", "");
+    
+
     DocDeclStr(
         wxSize , GetAdjustedBestSize() const,
         "This method is similar to GetBestSize, except in one
@@ -1325,7 +1340,7 @@ The cursor may be wx.NullCursor in which case the window cursor will
 be reset back to default.", "");
     
     DocDeclStr(
-        wxCursor& , GetCursor(),
+        wxCursor , GetCursor(),
         "Return the cursor associated with this window.", "");
     
 
@@ -1341,7 +1356,7 @@ be reset back to default.", "");
 
     
     DocDeclStr(
-        wxFont& , GetFont(),
+        wxFont , GetFont(),
         "Returns the default font used for this window.", "");