added some files

App.cpp

@@ -0,0 +1,52 @@
+/*
+ * Copyright 2024, Santiago Lema <santiago@lema.org>
+ * All rights reserved. Distributed under the terms of the MIT license.
+ */
+
+
+#include "App.h"
+#include "MainWindow.h"
+
+#include <AboutWindow.h>
+#include <Catalog.h>
+
+#undef B_TRANSLATION_CONTEXT
+#define B_TRANSLATION_CONTEXT "Application"
+
+const char* kApplicationSignature = "application/x-vnd.SLema-DumBer";
+
+
+App::App()
+	:
+	BApplication(kApplicationSignature)
+{
+	MainWindow* mainWindow = new MainWindow();
+	mainWindow->Show();
+}
+
+
+App::~App()
+{
+}
+
+
+void
+App::AboutRequested()
+{
+	BAboutWindow* about
+		= new BAboutWindow(B_TRANSLATE_SYSTEM_NAME("DumBer"), kApplicationSignature);
+	about->AddDescription(B_TRANSLATE("Type text in there to feel dumber."));
+	about->AddCopyright(2024, "Santiago Lema");
+	about->AddText("Ho");	
+	about->Show();
+}
+
+
+int
+main()
+{
+	App* app = new App();
+	app->Run();
+	delete app;
+	return 0;
+}