Added wxSearchCtrl::[Get|Set]DescriptiveText

Tweaked the layout of the subcontrols a bit
Lightened the icons to be more like Mac


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@44257 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/generic/srchctlg.h

@@ -60,6 +60,12 @@ public:
     virtual void ShowCancelButton( bool show );
     virtual bool IsCancelButtonVisible() const;
 
+#if wxABI_VERSION >= 20802
+    // TODO: In 2.9 these should probably be virtual, and declared in the base class...
+    void SetDescriptiveText(const wxString& text);
+    wxString GetDescriptiveText() const;
+#endif
+
     // accessors
     // ---------