move all code to construct MIDI messages into relevant Control/Strip/Surface object; remove MackieMidiBuilder

git-svn-id: svn://localhost/ardour2/branches/3.0@11895 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 87 insertions, 0 deletions

diff --git a/libs/surfaces/mackie/pot.cc b/libs/surfaces/mackie/pot.cc
new file mode 100644
index 0000000000..67fcb65ef9
--- /dev/null
+++ b/libs/surfaces/mackie/pot.cc
@@ -0,0 +1,87 @@
+/*
+	Copyright (C) 2006,2007 John Anderson
+	Copyright (C) 2012 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 <cmath>
+
+#include "pot.h"
+#include "surface.h"
+#include "control_group.h"
+
+using namespace Mackie;
+
+Control*
+Pot::factory (Surface& surface, int id, const char* name, Group& group)
+{
+	Pot* p = new Pot (id, name, group);
+	surface.pots[id] = p;
+	surface.controls.push_back (p);
+	group.add (*p);
+	return p;
+}
+
+MidiByteArray
+Pot::set_mode (Pot::Mode m)
+{
+	mode = m;
+	return update_message ();
+}
+
+MidiByteArray
+Pot::set_onoff (bool onoff)
+{
+	on = onoff;
+	return update_message ();
+}
+
+MidiByteArray 
+Pot::set_value (float normalized)
+{
+	value = normalized;
+	return update_message ();
+}
+
+MidiByteArray
+Pot::set_all (float val, bool onoff, Mode m)
+{
+	value = val;
+	on = onoff;
+	mode = m;
+	return update_message ();
+}
+
+MidiByteArray
+Pot::update_message ()
+{
+	// TODO do an exact calc for 0.50? To allow manually re-centering the port.
+
+	// center on or off
+	MIDI::byte msg =  (value > 0.45 && value < 0.55 ? 1 : 0) << 6;
+	
+	// mode
+	msg |=  (mode << 4);
+	
+	// value, but only if off hasn't explicitly been set
+
+	if  (on) {
+		msg +=  (lrintf (value * 10.0) + 1) & 0x0f; // 0b00001111
+	}
+
+	return MidiByteArray (3, 0xb0, raw_id(), msg);
+
+}
+