Support using GetTextExtent() with empty string to get descent in wxOSX.

[wxWidgets.git] / samples / thread / thread.cpp

diff --git a/samples/thread/thread.cpp b/samples/thread/thread.cpp
index 1e5c3ee9fb7317a41ee866d709d6ffc7c1c74c62..7948c35a473f92c83e452af84ec19c45ec5152ee 100644 (file)
--- a/samples/thread/thread.cpp
+++ b/samples/thread/thread.cpp
@@ -378,7 +378,7 @@ MyFrame::MyFrame(const wxString& title)
     wxMenu *menuHelp = new wxMenu;
     menuHelp->Append(THREAD_SHOWCPUS, wxT("&Show CPU count"));
     menuHelp->AppendSeparator();
-    menuHelp->Append(THREAD_ABOUT, wxT("&About..."));
+    menuHelp->Append(THREAD_ABOUT, wxT("&About"));
     menuBar->Append(menuHelp, wxT("&Help"));
 
     SetMenuBar(menuBar);
@@ -559,11 +559,11 @@ void MyFrame::OnStartThreads(wxCommandEvent& WXUNUSED(event) )
         // have the lowest priority, the second - the highest, all the rest
         // the normal one
         if ( n == 0 )
-            thr->SetPriority(WXTHREAD_MIN_PRIORITY);
+            thr->SetPriority(wxPRIORITY_MIN);
         else if ( n == 1 )
-            thr->SetPriority(WXTHREAD_MAX_PRIORITY);
+            thr->SetPriority(wxPRIORITY_MAX);
         else
-            thr->SetPriority(WXTHREAD_DEFAULT_PRIORITY);
+            thr->SetPriority(wxPRIORITY_DEFAULT);
 
         threads.Add(thr);
     }
@@ -597,6 +597,8 @@ void MyFrame::OnStartThread(wxCommandEvent& WXUNUSED(event) )
 
 void MyFrame::OnStopThread(wxCommandEvent& WXUNUSED(event) )
 {
+    wxThread* toDelete = NULL;
+    {
     wxCriticalSectionLocker enter(wxGetApp().m_critsect);
 
     // stop the last thread
@@ -606,7 +608,15 @@ void MyFrame::OnStopThread(wxCommandEvent& WXUNUSED(event) )
     }
     else
     {
-        wxGetApp().m_threads.Last()->Delete();
+        toDelete = wxGetApp().m_threads.Last();
+    }
+    }
+
+    if ( toDelete )
+    {
+        // This can still crash if the thread gets to delete itself
+        // in the mean time.
+        toDelete->Delete();
 
 #if wxUSE_STATUSBAR
         SetStatusText(wxT("Last thread stopped."), 1);