Added wxPropertyGridInterface::SetColumnProportion(); wxPG_SPLITTER_AUTO_CENTER window style now supports column counts higher than two.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@63481 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

samples/propgrid/propgrid.cpp

@@ -1845,6 +1845,10 @@ void FormMain::PopulateWithLibraryConfig ()
     wxPropertyGridManager* pgman = m_pPropGridManager;
     wxPropertyGridPage* pg = pgman->GetPage(wxT("wxWidgets Library Config"));
 
+    // Set custom column proportions
+    pg->SetColumnProportion(0, 3);
+    pg->SetColumnProportion(1, 1);
+
     wxPGProperty* cat;
 
     wxBitmap bmp = wxArtProvider::GetBitmap(wxART_REPORT_VIEW);