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diff --git a/libs/surfaces/maschine2/layout.cc b/libs/surfaces/maschine2/layout.cc
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+/*
+ Copyright (C) 2016 Paul 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.
+*/
+
+#include "maschine2.h"
+#include "canvas.h"
+#include "layout.h"
+
+#ifdef __APPLE__
+#define Rect ArdourCanvas::Rect
+#endif
+
+using namespace ARDOUR;
+using namespace ArdourSurface;
+using namespace ArdourCanvas;
+
+Maschine2Layout::Maschine2Layout (Maschine2& m2, Session& s, const std::string& name)
+ : Container (m2.canvas())
+ , _m2 (m2)
+ , _session (s)
+ , _name (name)
+{
+}
+
+Maschine2Layout::~Maschine2Layout ()
+{
+}
+
+void
+Maschine2Layout::compute_bounding_box () const
+{
+ /* all layouts occupy at least the full screen, even if their combined
+ * child boxes do not.
+ */
+ _bounding_box = Rect (0, 0, display_width(), display_height());
+ _bounding_box_dirty = false;
+}
+
+int
+Maschine2Layout::display_height() const
+{
+ return _m2.canvas()->height();
+}
+
+int
+Maschine2Layout::display_width() const
+{
+ return _m2.canvas()->width();
+}