Added 'Back' to accelerator possibilities

[wxWidgets.git] / src / common / framecmn.cpp

diff --git a/src/common/framecmn.cpp b/src/common/framecmn.cpp
index 3641dec49e823f42ec1a6364cdb8afcb75e68279..78d72ccbd05e826419352fa069d18f4404567bbb 100644 (file)
--- a/src/common/framecmn.cpp
+++ b/src/common/framecmn.cpp
@@ -16,7 +16,7 @@
 // headers
 // ----------------------------------------------------------------------------
 
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
     #pragma implementation "framebase.h"
 #endif
 
@@ -45,13 +45,17 @@
 // event table
 // ----------------------------------------------------------------------------
 
+#if wxUSE_MENUS && wxUSE_STATUSBAR
+
 BEGIN_EVENT_TABLE(wxFrameBase, wxTopLevelWindow)
-#if wxUSE_MENUS && !wxUSE_IDLEMENUUPDATES
     EVT_MENU_OPEN(wxFrameBase::OnMenuOpen)
-#endif
+    EVT_MENU_CLOSE(wxFrameBase::OnMenuClose)
+
     EVT_MENU_HIGHLIGHT_ALL(wxFrameBase::OnMenuHighlight)
 END_EVENT_TABLE()
 
+#endif // wxUSE_MENUS && wxUSE_STATUSBAR
+
 // ============================================================================
 // implementation
 // ============================================================================
@@ -151,7 +155,7 @@ wxPoint wxFrameBase::GetClientAreaOrigin() const
 {
     wxPoint pt = wxTopLevelWindow::GetClientAreaOrigin();
 
-#if wxUSE_TOOLBAR && !defined(__WXUNIVERSAL__)
+#if wxUSE_TOOLBAR && !defined(__WXUNIVERSAL__) && !defined(__WXWINCE__)
     wxToolBar *toolbar = GetToolBar();
     if ( toolbar && toolbar->IsShown() )
     {
@@ -233,13 +237,15 @@ void wxFrameBase::UpdateWindowUI(long flags)
         else
             DoMenuUpdates();
     }
-#endif
+#endif // wxUSE_MENUS
 }
 
 // ----------------------------------------------------------------------------
-// event handlers
+// event handlers for status bar updates from menus
 // ----------------------------------------------------------------------------
 
+#if wxUSE_MENUS && wxUSE_STATUSBAR
+
 void wxFrameBase::OnMenuHighlight(wxMenuEvent& event)
 {
 #if wxUSE_STATUSBAR
@@ -247,22 +253,42 @@ void wxFrameBase::OnMenuHighlight(wxMenuEvent& event)
 #endif // wxUSE_STATUSBAR
 }
 
+void wxFrameBase::OnMenuOpen(wxMenuEvent& event)
+{
+#if !wxUSE_IDLEMENUUPDATES
+    DoMenuUpdates(event.GetMenu());
+#endif // !wxUSE_IDLEMENUUPDATES
+}
+
+void wxFrameBase::OnMenuClose(wxMenuEvent& WXUNUSED(event))
+{
+    // do we have real status text to restore?
+    if ( m_oldStatusText.length() > 1 || m_oldStatusText[0u] )
+    {
+        if ( m_statusBarPane >= 0 )
+        {
+            wxStatusBar *statbar = GetStatusBar();
+            if ( statbar )
+                statbar->SetStatusText(m_oldStatusText, m_statusBarPane);
+        }
+
+        m_oldStatusText.clear();
+    }
+}
+
+#endif // wxUSE_MENUS && wxUSE_STATUSBAR
+
 // Implement internal behaviour (menu updating on some platforms)
 void wxFrameBase::OnInternalIdle()
 {
+    wxTopLevelWindow::OnInternalIdle();
+    
 #if wxUSE_MENUS && wxUSE_IDLEMENUUPDATES
     if (wxUpdateUIEvent::CanUpdate(this))
         DoMenuUpdates();
 #endif
 }
 
-void wxFrameBase::OnMenuOpen(wxMenuEvent& WXUNUSED(event))
-{
-#if wxUSE_MENUS && !wxUSE_IDLEMENUUPDATES
-    DoMenuUpdates();
-#endif
-}
-
 // ----------------------------------------------------------------------------
 // status bar stuff
 // ----------------------------------------------------------------------------
@@ -361,12 +387,41 @@ bool wxFrameBase::ShowMenuHelp(wxStatusBar *WXUNUSED(statbar), int menuId)
 void wxFrameBase::DoGiveHelp(const wxString& text, bool show)
 {
 #if wxUSE_STATUSBAR
-    if ( m_statusBarPane < 0 ) return;
-    wxStatusBar* statbar = GetStatusBar();
-    if ( !statbar ) return;
+    if ( m_statusBarPane < 0 )
+    {
+        // status bar messages disabled
+        return;
+    }
+
+    wxStatusBar *statbar = GetStatusBar();
+    if ( !statbar )
+        return;
+
+    wxString help;
+    if ( show )
+        help = text;
+
+    // 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 += _T('\0');
+        }
+    }
 
-    wxString help = show ? text : wxString();
-    statbar->SetStatusText( help, m_statusBarPane );
+    statbar->SetStatusText(help, m_statusBarPane);
 #endif // wxUSE_STATUSBAR
 }
 
@@ -421,13 +476,15 @@ wxToolBar* wxFrameBase::OnCreateToolBar(long style,
 #if wxUSE_MENUS
 
 // update all menus
-void wxFrameBase::DoMenuUpdates()
+void wxFrameBase::DoMenuUpdates(wxMenu* menu)
 {
+    wxEvtHandler* source = GetEventHandler();
     wxMenuBar* bar = GetMenuBar();
 
-    if ( bar != NULL )
+    if (menu)
+        menu->UpdateUI(source);
+    else if ( bar != NULL )
     {
-        wxEvtHandler* source = GetEventHandler();
         int nCount = bar->GetMenuCount();
         for (int n = 0; n < nCount; n++)
             bar->GetMenu(n)->UpdateUI(source);