X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/3ba6891d6a5aab3832f561081040ef5a00172d05..f1e3914fde06186edb75b2948418aeea9914a075:/src/gtk/notebook.cpp

diff --git a/src/gtk/notebook.cpp b/src/gtk/notebook.cpp
index 9c4b4a3932..27105979a5 100644
--- a/src/gtk/notebook.cpp
+++ b/src/gtk/notebook.cpp
@@ -104,28 +104,43 @@ static void gtk_notebook_page_change_callback(GtkNotebook *WXUNUSED(widget),
 
     int old = notebook->GetSelection();
 
-    wxNotebookEvent eventChanging( wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING,
-                                   notebook->GetId(), page, old );
-    eventChanging.SetEventObject( notebook );
 
-    if ( (notebook->GetEventHandler()->ProcessEvent(eventChanging)) &&
-         !eventChanging.IsAllowed() )
-    {
-        /* program doesn't allow the page change */
-        g_signal_stop_emission_by_name (notebook->m_widget,
-                                        "switch_page");
-    }
-    else // change allowed
+    if (notebook->m_skipNextPageChangeEvent)
     {
+        // this event was programatically generated by ChangeSelection() and thus must
+        // be skipped
+        notebook->m_skipNextPageChangeEvent = false;
+
         // make wxNotebook::GetSelection() return the correct (i.e. consistent
         // with wxNotebookEvent::GetSelection()) value even though the page is
         // not really changed in GTK+
         notebook->m_selection = page;
+    }
+    else
+    {
+        wxNotebookEvent eventChanging( wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING,
+                                    notebook->GetId(), page, old );
+        eventChanging.SetEventObject( notebook );
 
-        wxNotebookEvent eventChanged( wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED,
-                                      notebook->GetId(), page, old );
-        eventChanged.SetEventObject( notebook );
-        notebook->GetEventHandler()->ProcessEvent( eventChanged );
+        if ( (notebook->GetEventHandler()->ProcessEvent(eventChanging)) &&
+            !eventChanging.IsAllowed() )
+        {
+            /* program doesn't allow the page change */
+            g_signal_stop_emission_by_name (notebook->m_widget,
+                                            "switch_page");
+        }
+        else // change allowed
+        {
+            // make wxNotebook::GetSelection() return the correct (i.e. consistent
+            // with wxNotebookEvent::GetSelection()) value even though the page is
+            // not really changed in GTK+
+            notebook->m_selection = page;
+
+            wxNotebookEvent eventChanged( wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED,
+                                        notebook->GetId(), page, old );
+            eventChanged.SetEventObject( notebook );
+            notebook->GetEventHandler()->ProcessEvent( eventChanged );
+        }
     }
 
     notebook->m_inSwitchPage = false;
@@ -289,6 +304,7 @@ void wxNotebook::Init()
 {
     m_padding = 0;
     m_inSwitchPage = false;
+    m_skipNextPageChangeEvent = false;
 
     m_imageList = (wxImageList *) NULL;
     m_selection = -1;
@@ -414,7 +430,7 @@ wxGtkNotebookPage* wxNotebook::GetNotebookPage( int page ) const
     return m_pagesData.Item(page)->GetData();
 }
 
-int wxNotebook::SetSelection( size_t page )
+int wxNotebook::DoSetSelection( size_t page, int flags )
 {
     wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid notebook") );
 
@@ -422,10 +438,23 @@ int wxNotebook::SetSelection( size_t page )
 
     int selOld = GetSelection();
 
+    if ( !(flags & SetSelection_SendEvent) )
+        m_skipNextPageChangeEvent = true;
+
     // cache the selection
     m_selection = page;
     gtk_notebook_set_current_page( GTK_NOTEBOOK(m_widget), page );
 
+#ifdef __WXDEBUG__
+    if ( !(flags & SetSelection_SendEvent) )
+    {
+        // gtk_notebook_set_current_page will emit the switch-page signal which will be
+        // caught by our gtk_notebook_page_change_callback which should have reset the
+        // flag to false:
+        wxASSERT(!m_skipNextPageChangeEvent);
+    }
+#endif // __WXDEBUG__
+
     wxNotebookPage *client = GetPage(page);
     if ( client )
         client->SetFocus();