initial commit

Signed-off-by: Peter Siegmund <mars3142@noreply.mars3142.dev>

libs/wxWidgets-3.3.1/include/wx/gtk/private/error.h

@@ -0,0 +1,64 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        gtk/private/error.h
+// Purpose:     Wrapper around GError.
+// Author:      Vadim Zeitlin
+// Created:     2012-07-25
+// Copyright:   (c) 2012 Vadim Zeitlin <vadim@wxwidgets.org>
+// Licence:     wxWindows licence
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_GTK_PRIVATE_ERROR_H_
+#define _WX_GTK_PRIVATE_ERROR_H_
+
+// ----------------------------------------------------------------------------
+// wxGtkError wraps GError and releases it automatically.
+// ----------------------------------------------------------------------------
+
+// Create an object of this class and pass the result of its Out() method to a
+// function taking "GError**", then use GetMessage() if the function returned
+// false.
+class wxGtkError
+{
+public:
+    wxGtkError() { m_error = nullptr; }
+    explicit wxGtkError(GError* error) { m_error = error; }
+    ~wxGtkError() { if ( m_error ) g_error_free(m_error); }
+
+    GError** Out()
+    {
+        // This would result in a GError leak.
+        wxASSERT_MSG( !m_error, wxS("Can't reuse the same object.") );
+
+        return &m_error;
+    }
+
+    // Check if any error actually occurred.
+    operator bool() const
+    {
+        return m_error != nullptr;
+    }
+
+    operator GError*() const
+    {
+        return m_error;
+    }
+
+    const gchar* GetMessageStr() const
+    {
+        return m_error->message;
+    }
+
+    wxString GetMessage() const
+    {
+        wxCHECK( m_error, wxASCII_STR("missing error object") );
+
+        return wxString::FromUTF8(m_error->message);
+    }
+
+private:
+    GError* m_error;
+
+    wxDECLARE_NO_COPY_CLASS(wxGtkError);
+};
+
+#endif // _WX_GTK_PRIVATE_ERROR_H_