1 files changed, 67 insertions, 0 deletions
diff --git a/libs/pbd3/pbd/abstract_ui.h b/libs/pbd3/pbd/abstract_ui.h
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+++ b/libs/pbd3/pbd/abstract_ui.h
@@ -0,0 +1,67 @@
+/*
+    Copyright (C) 1998-99 Paul Barton-Davis 
+
+    This program 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.
+
+    This program 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 more 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+    $Id$
+*/
+
+#ifndef __pbd_abstract_ui_h__
+#define __pbd_abstract_ui_h__
+
+#include <pbd/receiver.h>
+#include <sigc++/sigc++.h>
+
+class Touchable;
+
+class AbstractUI : public Receiver
+{
+  public:
+	enum RequestType {
+		ErrorMessage,
+		Quit,
+		CallSlot,
+		CallSlotLocked,
+		TouchDisplay,
+		StateChange,
+		SetTip,
+		AddIdle,
+		AddTimeout,
+	};
+
+	bool ok() { return _ok; }
+
+	AbstractUI () {}
+	virtual ~AbstractUI() {}
+
+	virtual void run (Receiver &old_receiver) = 0;
+	virtual void quit    () = 0;
+	virtual bool running () = 0;
+	virtual void request (RequestType) = 0;
+	virtual void touch_display (Touchable *) = 0;
+	virtual void call_slot (sigc::slot<void>) = 0;
+	virtual bool caller_is_gui_thread() = 0;
+
+	/* needed to be a receiver ... */
+
+	virtual void receive (Transmitter::Channel, const char *) = 0;
+	
+  protected:
+	bool _ok;
+};
+
+#endif // __pbd_abstract_ui_h__
+
+