Better support for unspecified property value in wxDateProperty and DatePickerCtrl...

[wxWidgets.git] / include / wx / msgout.h

diff --git a/include/wx/msgout.h b/include/wx/msgout.h
index b670f2b65367da62919b7efb94b9acf227ebb75f..4f85b3581c8fdf04f98ebe633bbee101b65f5e1e 100644 (file)
--- a/include/wx/msgout.h
+++ b/include/wx/msgout.h
@@ -101,31 +101,44 @@ private:
 #endif
 
 // ----------------------------------------------------------------------------
-// implementation showing the message to the user in "best" possible way: uses
-// native message box if available (currently only under Windows) and stderr
-// otherwise; unlike wxMessageOutputMessageBox this class is always safe to use
+// implementation which sends output to stderr
 // ----------------------------------------------------------------------------
 
-class WXDLLIMPEXP_BASE wxMessageOutputBest : public wxMessageOutput
+class WXDLLIMPEXP_BASE wxMessageOutputStderr : public wxMessageOutput
 {
 public:
-    wxMessageOutputBest() { }
+    wxMessageOutputStderr() { }
 
 protected:
     virtual void Output(const wxString& str);
+
+    // return the string with "\n" appended if it doesn't already terminate
+    // with it (in which case it's returned unchanged)
+    wxString AppendLineFeedIfNeeded(const wxString& str);
 };
 
 // ----------------------------------------------------------------------------
-// implementation which sends output to stderr
+// implementation showing the message to the user in "best" possible way:
+// uses stderr or message box if available according to the flag given to ctor.
 // ----------------------------------------------------------------------------
 
-class WXDLLIMPEXP_BASE wxMessageOutputStderr : public wxMessageOutput
+enum wxMessageOutputFlags
+{
+    wxMSGOUT_PREFER_STDERR = 0, // use stderr if available (this is the default)
+    wxMSGOUT_PREFER_MSGBOX = 1  // always use message box if available
+};
+
+class WXDLLIMPEXP_BASE wxMessageOutputBest : public wxMessageOutputStderr
 {
 public:
-    wxMessageOutputStderr() { }
+    wxMessageOutputBest(wxMessageOutputFlags flags = wxMSGOUT_PREFER_STDERR)
+        : m_flags(flags) { }
 
 protected:
     virtual void Output(const wxString& str);
+
+private:
+    wxMessageOutputFlags m_flags;
 };
 
 // ----------------------------------------------------------------------------
@@ -149,7 +162,7 @@ protected:
 // implementation using the native way of outputting debug messages
 // ----------------------------------------------------------------------------
 
-class WXDLLIMPEXP_BASE wxMessageOutputDebug : public wxMessageOutput
+class WXDLLIMPEXP_BASE wxMessageOutputDebug : public wxMessageOutputStderr
 {
 public:
     wxMessageOutputDebug() { }
@@ -171,5 +184,4 @@ protected:
     virtual void Output(const wxString& str);
 };
 
-#endif
-    // _WX_MSGOUT_H_
+#endif // _WX_MSGOUT_H_