Paul Davis
02c8ccf348
git-svn-id: svn://localhost/ardour2/branches/3.0@11895 d708f5d6-7413-0410-9779-e7cbd77b26cf
88 lines
1.8 KiB
C++
88 lines
1.8 KiB
C++
/*
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Copyright (C) 2006,2007 John Anderson
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Copyright (C) 2012 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <cmath>
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#include "pot.h"
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#include "surface.h"
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#include "control_group.h"
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using namespace Mackie;
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Control*
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Pot::factory (Surface& surface, int id, const char* name, Group& group)
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{
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Pot* p = new Pot (id, name, group);
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surface.pots[id] = p;
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surface.controls.push_back (p);
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group.add (*p);
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return p;
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}
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MidiByteArray
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Pot::set_mode (Pot::Mode m)
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{
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mode = m;
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return update_message ();
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}
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MidiByteArray
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Pot::set_onoff (bool onoff)
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{
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on = onoff;
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return update_message ();
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}
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MidiByteArray
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Pot::set_value (float normalized)
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{
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value = normalized;
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return update_message ();
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}
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MidiByteArray
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Pot::set_all (float val, bool onoff, Mode m)
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{
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value = val;
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on = onoff;
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mode = m;
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return update_message ();
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}
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MidiByteArray
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Pot::update_message ()
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{
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// TODO do an exact calc for 0.50? To allow manually re-centering the port.
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// center on or off
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MIDI::byte msg = (value > 0.45 && value < 0.55 ? 1 : 0) << 6;
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// mode
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msg |= (mode << 4);
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// value, but only if off hasn't explicitly been set
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if (on) {
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msg += (lrintf (value * 10.0) + 1) & 0x0f; // 0b00001111
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}
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return MidiByteArray (3, 0xb0, raw_id(), msg);
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}
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