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diff --git a/src/progs/ingenuity/App.h b/src/progs/ingenuity/App.h
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+/* This file is part of Om.  Copyright (C) 2006 Dave Robillard.
+ * 
+ * Om is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 2 of the License, or (at your option) any later
+ * version.
+ * 
+ * Om is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for details.
+ * 
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef OMGTKAPP_H
+#define OMGTKAPP_H
+
+#include <cassert>
+#include <string>
+#include <map>
+#include <list>
+#include <iostream>
+#include <libgnomecanvasmm.h>
+#include <gtkmm.h>
+#include <libglademm.h>
+using std::string; using std::map; using std::list;
+using std::cerr; using std::endl;
+
+namespace LibOmClient { class PatchModel; class PluginModel; }
+using namespace LibOmClient;
+
+/** \defgroup OmGtk GTK Client
+ */
+
+namespace OmGtk {
+
+class PatchWindow;
+class GtkObjectController;
+class PatchController;
+class NodeController;
+class PortController;
+class LoadPatchWindow;
+class MessagesWindow;
+class ConfigWindow;
+class OmGtkObject;
+class OmModule;
+class OmPort;
+class OmFlowCanvas;
+class PatchTreeView;
+class PatchTreeWindow;
+class ConnectWindow;
+class Configuration;
+
+
+/** Singleton master class most everything is contained within.
+ *
+ * This is a horrible god-object, but it's shrinking in size as things are
+ * moved out.  Hopefully it will go away entirely some day..
+ *
+ * \ingroup OmGtk
+ */
+class App
+{
+public:
+	~App();
+
+	void error_message(const string& msg);
+
+	void quit();
+
+	void add_patch_window(PatchWindow* pw);
+	void remove_patch_window(PatchWindow* pw);
+
+	int  num_open_patch_windows();
+
+	ConnectWindow*   connect_window()       const { return m_connect_window; }
+	Gtk::Dialog*     about_dialog()         const { return m_about_dialog; }
+	ConfigWindow*    configuration_dialog() const { return m_config_window; }
+	MessagesWindow*  messages_dialog()      const { return m_messages_window; }
+	PatchTreeWindow* patch_tree()           const { return m_patch_tree_window; }
+	Configuration*   configuration()        const { return m_configuration; }
+
+	static void        instantiate() { if (!_instance) _instance = new App(); }
+	static inline App& instance()    { assert(_instance); return *_instance; }
+
+protected:
+	App();
+	static App* _instance;
+
+	//bool connect_callback();
+	//bool idle_callback();
+
+	Configuration*    m_configuration;
+
+	list<PatchWindow*> m_windows;
+	
+	ConnectWindow*    m_connect_window;
+	MessagesWindow*   m_messages_window;
+	PatchTreeWindow*  m_patch_tree_window;
+	ConfigWindow*     m_config_window;
+	Gtk::Dialog*      m_about_dialog;
+	Gtk::Button*      m_engine_error_close_button;
+
+	/** Used to avoid feedback loops with (eg) process checkbutton
+	 * FIXME: Maybe this should be globally implemented at the Controller level,
+	 * disable all command sending while handling events to avoid feedback
+	 * issues with widget event callbacks?  This same pattern is duplicated
+	 * too much... */
+	bool m_enable_signal;
+};
+
+
+} // namespace OmGtk
+
+#endif // OMGTKAPP_H
+