Added wxDC::GetPartialTextExtents

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

diff --git a/src/common/framecmn.cpp b/src/common/framecmn.cpp
index 87c94e3fe34de846622daf480f4180216036fe0f..2070a9cde307f4550b38acfdaca9b67ba6213dbf 100644 (file)
--- a/src/common/framecmn.cpp
+++ b/src/common/framecmn.cpp
@@ -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
 // ============================================================================
@@ -124,20 +128,20 @@ bool wxFrameBase::IsOneOfBars(const wxWindow *win) const
 {
 #if wxUSE_MENUS
     if ( win == GetMenuBar() )
-        return TRUE;
+        return true;
 #endif // wxUSE_MENUS
 
 #if wxUSE_STATUSBAR
     if ( win == GetStatusBar() )
-        return TRUE;
+        return true;
 #endif // wxUSE_STATUSBAR
 
 #if wxUSE_TOOLBAR
     if ( win == GetToolBar() )
-        return TRUE;
+        return true;
 #endif // wxUSE_TOOLBAR
 
-    return FALSE;
+    return false;
 }
 
 // ----------------------------------------------------------------------------
@@ -181,7 +185,7 @@ bool wxFrameBase::ProcessCommand(int id)
 #if wxUSE_MENUS
     wxMenuBar *bar = GetMenuBar();
     if ( !bar )
-        return FALSE;
+        return false;
 
     wxCommandEvent commandEvent(wxEVT_COMMAND_MENU_SELECTED, id);
     commandEvent.SetEventObject(this);
@@ -190,7 +194,7 @@ bool wxFrameBase::ProcessCommand(int id)
     if (item)
     {
         if (!item->IsEnabled())
-            return TRUE;
+            return true;
 
         if (item->IsCheckable())
         {
@@ -202,9 +206,9 @@ bool wxFrameBase::ProcessCommand(int id)
     }
 
     GetEventHandler()->ProcessEvent(commandEvent);
-    return TRUE;
+    return true;
 #else // !wxUSE_MENUS
-    return FALSE;
+    return false;
 #endif // wxUSE_MENUS/!wxUSE_MENUS
 }
 
@@ -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
@@ -247,6 +253,35 @@ void wxFrameBase::OnMenuHighlight(wxMenuEvent& event)
 #endif // wxUSE_STATUSBAR
 }
 
+#if !wxUSE_IDLEMENUUPDATES
+void wxFrameBase::OnMenuOpen(wxMenuEvent& event)
+#else
+void wxFrameBase::OnMenuOpen(wxMenuEvent& WXUNUSED(event))
+#endif
+{
+#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()
 {
@@ -258,13 +293,6 @@ void wxFrameBase::OnInternalIdle()
 #endif
 }
 
-void wxFrameBase::OnMenuOpen(wxMenuEvent& event)
-{
-#if wxUSE_MENUS && !wxUSE_IDLEMENUUPDATES
-    DoMenuUpdates(event.GetMenu());
-#endif
-}
-
 // ----------------------------------------------------------------------------
 // status bar stuff
 // ----------------------------------------------------------------------------
@@ -354,7 +382,7 @@ bool wxFrameBase::ShowMenuHelp(wxStatusBar *WXUNUSED(statbar), int menuId)
 
     return !helpString.IsEmpty();
 #else // !wxUSE_MENUS
-    return FALSE;
+    return false;
 #endif // wxUSE_MENUS/!wxUSE_MENUS
 }
 
@@ -363,12 +391,41 @@ 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
 }
 
@@ -466,7 +523,7 @@ void wxFrameBase::SetMenuBar(wxMenuBar *menubar)
 
     DetachMenuBar();
 
-    AttachMenuBar(menubar);
+    this->AttachMenuBar(menubar);
 }
 
 #endif // wxUSE_MENUS