+ wxString text;
+ if ( show )
+ {
+ // remember the old status bar text if this is the first time we're
+ // called since the menu has been opened as we're going to overwrite it
+ // in our DoGiveHelp() and we want to restore it when the menu is
+ // closed
+ //
+ // note that it would be logical to do this in OnMenuOpen() but under
+ // MSW we get an EVT_MENU_HIGHLIGHT before EVT_MENU_OPEN, strangely
+ // enough, and so this doesn't work and instead we use the ugly trick
+ // with using special m_oldStatusText value as "menu opened" (but it is
+ // arguably better than adding yet another member variable to wxFrame
+ // on all platforms)
+ if ( m_oldStatusText.empty() )
+ {
+ m_oldStatusText = statbar->GetStatusText(m_statusBarPane);
+ if ( m_oldStatusText.empty() )
+ {
+ // use special value to prevent us from doing this the next time
+ m_oldStatusText += wxT('\0');
+ }
+ }
+
+ m_lastHelpShown =
+ text = help;
+ }
+ else // hide help, restore the original text
+ {
+ // clear the last shown help string but remember its value
+ wxString lastHelpShown;
+ lastHelpShown.swap(m_lastHelpShown);
+
+ // also clear the old status text but remember it too to restore it
+ // below
+ text.swap(m_oldStatusText);
+
+ if ( statbar->GetStatusText(m_statusBarPane) != lastHelpShown )
+ {
+ // if the text was changed with an explicit SetStatusText() call
+ // from the user code in the meanwhile, do not overwrite it with
+ // the old status bar contents -- this is almost certainly not what
+ // the user expects and would be very hard to avoid from user code
+ return;
+ }
+ }
+
+ statbar->SetStatusText(text, m_statusBarPane);
+#else
+ wxUnusedVar(help);
+ wxUnusedVar(show);
projects / wxWidgets.git / blobdiff