* 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

src/mac/carbon/toolbar.cpp

@@ -377,6 +377,7 @@ bool wxToolBar::Realize()
     }
     
     SetSize( maxWidth, maxHeight );
+    InvalidateBestSize();
     
     return TRUE;
 }
@@ -473,6 +474,7 @@ bool wxToolBar::DoInsertTool(size_t WXUNUSED(pos),
 {
     // nothing special to do here - we relayout in Realize() later
     tool->Attach(this);
+    InvalidateBestSize();
 
     return TRUE;
 }
@@ -519,6 +521,7 @@ bool wxToolBar::DoDeleteTool(size_t WXUNUSED(pos), wxToolBarToolBase *tool)
         tool2->SetPosition( pt ) ;
     }
     
+    InvalidateBestSize();
     return TRUE ;
 }