Fixed bug whereby sash would disappear beneath left-hand pane

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@54370 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/changes.txt

@@ -94,6 +94,10 @@ All:
 
 All (GUI):
 
+- Fixed help viewer bug whereby the splitter sash in wxHtmlHelpWindow could
+  go underneath the left-hand pane, permanently, after resizing the
+  help window.
+
 All (Unix):
 
 - MIME types reading fixed when running under GNOME, reading .desktop

src/html/helpwnd.cpp

@@ -563,9 +563,10 @@ bool wxHtmlHelpWindow::Create(wxWindow* parent, wxWindowID id,
     // showtime
     if ( m_NavigPan && m_Splitter )
     {
-        m_Splitter->SetMinimumPaneSize(20);
-        if ( m_Cfg.navig_on )
-            m_Splitter->SplitVertically(m_NavigPan, m_HtmlWin, m_Cfg.sashpos);
+        if (m_NavigPan)
+            m_Splitter->SetMinimumPaneSize(m_NavigPan->GetBestSize().x);
+        else
+            m_Splitter->SetMinimumPaneSize(20);
 
         if ( m_Cfg.navig_on )
         {