Use template class instead of template function in wxVectorSort().

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

diff --git a/samples/except/except.cpp b/samples/except/except.cpp
index ed04aec596c17f77cf6ba0d16772d628691edc38..7ea7b7b159844b8a5e059159f417fdf3822f72be 100644 (file)
--- a/samples/except/except.cpp
+++ b/samples/except/except.cpp
@@ -44,6 +44,8 @@
     #include "wx/utils.h"
     #include "wx/msgdlg.h"
     #include "wx/icon.h"
+
+    #include "wx/thread.h"
 #endif
 
 // ----------------------------------------------------------------------------
@@ -91,14 +93,13 @@ public:
     // crash (e.g. dereferencing null pointer, division by 0, ...)
     virtual void OnFatalException();
 
-#ifdef __WXDEBUG__
-    // in debug mode, you can override this function to do something different
-    // (e.g. log the assert to file) whenever an assertion fails
-    virtual void OnAssert(const wxChar *file,
-                          int line,
-                          const wxChar *cond,
-                          const wxChar *msg);
-#endif // __WXDEBUG__
+    // you can override this function to do something different (e.g. log the
+    // assert to file) whenever an assertion fails
+    virtual void OnAssertFailure(const wxChar *file,
+                                 int line,
+                                 const wxChar *func,
+                                 const wxChar *cond,
+                                 const wxChar *msg);
 };
 
 // Define a new frame type: this is going to be our main frame
@@ -129,10 +130,13 @@ protected:
     // catch exceptions which occur in MyFrame methods here
     virtual bool ProcessEvent(wxEvent& event);
 
-#ifdef __WXDEBUG__
-    // show how an assert failure message box looks like
+    // provoke assert in main or worker thread
+    //
+    // this is used to show how an assert failure message box looks like
     void OnShowAssert(wxCommandEvent& event);
-#endif // __WXDEBUG__
+#if wxUSE_THREADS
+    void OnShowAssertInThread(wxCommandEvent& event);
+#endif // wxUSE_THREADS
 
 private:
     // any class wishing to process wxWidgets events must use this macro
@@ -187,9 +191,10 @@ enum
 #if wxUSE_ON_FATAL_EXCEPTION
     Except_HandleCrash,
 #endif // wxUSE_ON_FATAL_EXCEPTION
-#ifdef __WXDEBUG__
     Except_ShowAssert,
-#endif // __WXDEBUG__
+#if wxUSE_THREADS
+    Except_ShowAssertInThread,
+#endif // wxUSE_THREADS
     Except_Dialog,
 
     Except_Quit = wxID_EXIT,
@@ -215,9 +220,10 @@ BEGIN_EVENT_TABLE(MyFrame, wxFrame)
 #if wxUSE_ON_FATAL_EXCEPTION
     EVT_MENU(Except_HandleCrash, MyFrame::OnHandleCrash)
 #endif // wxUSE_ON_FATAL_EXCEPTION
-#ifdef __WXDEBUG__
     EVT_MENU(Except_ShowAssert, MyFrame::OnShowAssert)
-#endif // __WXDEBUG__
+#if wxUSE_THREADS
+    EVT_MENU(Except_ShowAssertInThread, MyFrame::OnShowAssertInThread)
+#endif // wxUSE_THREADS
 END_EVENT_TABLE()
 
 BEGIN_EVENT_TABLE(MyDialog, wxDialog)
@@ -302,19 +308,28 @@ void MyApp::OnFatalException()
                  wxT("wxExcept Sample"), wxOK | wxICON_ERROR);
 }
 
-#ifdef __WXDEBUG__
-
-void MyApp::OnAssert(const wxChar *file,
-                     int line,
-                     const wxChar *cond,
-                     const wxChar *msg)
+void MyApp::OnAssertFailure(const wxChar *file,
+                            int line,
+                            const wxChar *func,
+                            const wxChar *cond,
+                            const wxChar *msg)
 {
-    // we don't have anything special to do here
-    wxApp::OnAssert(file, line, cond, msg);
+    // take care to not show the message box from a worker thread, this doesn't
+    // work as it doesn't have any event loop
+    if ( !wxIsMainThread() ||
+            wxMessageBox
+            (
+                wxString::Format("An assert failed in %s().", func) +
+                "\n"
+                "Do you want to call the default assert handler?",
+                "wxExcept Sample",
+                wxYES_NO | wxICON_QUESTION
+            ) == wxYES )
+    {
+        wxApp::OnAssertFailure(file, line, func, cond, msg);
+    }
 }
 
-#endif // __WXDEBUG__
-
 // ============================================================================
 // MyFrame implementation
 // ============================================================================
@@ -343,10 +358,12 @@ MyFrame::MyFrame()
     menuFile->AppendCheckItem(Except_HandleCrash, wxT("&Handle crashes\tCtrl-H"));
     menuFile->AppendSeparator();
 #endif // wxUSE_ON_FATAL_EXCEPTION
-#ifdef __WXDEBUG__
     menuFile->Append(Except_ShowAssert, wxT("Provoke &assert failure\tCtrl-A"));
+#if wxUSE_THREADS
+    menuFile->Append(Except_ShowAssertInThread,
+                     wxT("Assert failure in &thread\tShift-Ctrl-A"));
+#endif // wxUSE_THREADS
     menuFile->AppendSeparator();
-#endif // __WXDEBUG__
     menuFile->Append(Except_Quit, wxT("E&xit\tCtrl-Q"), wxT("Quit this program"));
 
     wxMenu *helpMenu = new wxMenu;
@@ -439,8 +456,6 @@ void MyFrame::OnHandleCrash(wxCommandEvent& event)
 
 #endif // wxUSE_ON_FATAL_EXCEPTION
 
-#ifdef __WXDEBUG__
-
 void MyFrame::OnShowAssert(wxCommandEvent& WXUNUSED(event))
 {
     // provoke an assert from wxArrayString
@@ -448,7 +463,34 @@ void MyFrame::OnShowAssert(wxCommandEvent& WXUNUSED(event))
     arr[0];
 }
 
-#endif // __WXDEBUG__
+#if wxUSE_THREADS
+
+void MyFrame::OnShowAssertInThread(wxCommandEvent& WXUNUSED(event))
+{
+    class AssertThread : public wxThread
+    {
+    public:
+        AssertThread()
+            : wxThread(wxTHREAD_JOINABLE)
+        {
+        }
+
+    protected:
+        virtual void *Entry()
+        {
+            wxFAIL_MSG("Test assert in another thread.");
+
+            return 0;
+        }
+    };
+
+    AssertThread thread;
+    thread.Create();
+    thread.Run();
+    thread.Wait();
+}
+
+#endif // wxUSE_THREADS
 
 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 {